Mercurial > projects > dwt-win
annotate dwt/graphics/TextLayout.d @ 323:7066c4836d65
Fix unicode handling
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 30 Nov 2008 09:25:27 +0100 |
| parents | 745001b1a52c |
| children | 27479f54069d |
| rev | line source |
|---|---|
| 29 | 1 /******************************************************************************* |
| 246 | 2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
| 29 | 3 * All rights reserved. This program and the accompanying materials |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
|
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Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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10 * Port to the D programming language: |
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Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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11 * Frank Benoit <benoit@tionex.de> |
| 29 | 12 *******************************************************************************/ |
| 13 module dwt.graphics.TextLayout; | |
| 14 | |
| 295 | 15 /++ |
| 16 + DWT Changes to make the port work. | |
| 17 + The USER API is utf8, the Windows API is utf16. In addition to the fields 'text' and 'segmentsText' fields are added to help. | |
| 18 + wtext: same as text but utf16 | |
| 19 + segmentsWText: same as segmentsText but utf16 | |
| 20 + index8to16: translate indexes from segmentsText to segmentsWText | |
| 21 + index16to8: translate indexes from segmentsWText to segmentsText | |
| 22 + | |
| 23 + 'text' is the original user text, 'segmentsText' is the user text stuffed with | |
| 24 + RTL/LTR markers for each line or in addition for User supplied segments. A segment | |
| 25 + is a range where Bidi char reordering can happen. | |
| 26 + The 'runs' are those ranges with an idiviual style. | |
| 27 +/ | |
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28 import tango.util.log.Trace; |
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29 |
| 29 | 30 import dwt.DWT; |
| 31 import dwt.DWTException; | |
| 32 import dwt.internal.Compatibility; | |
| 33 import dwt.internal.gdip.Gdip; | |
| 213 | 34 |
| 29 | 35 import dwt.internal.win32.OS; |
| 36 | |
| 37 import dwt.graphics.Color; | |
| 38 import dwt.graphics.Device; | |
| 39 import dwt.graphics.Font; | |
| 40 import dwt.graphics.FontMetrics; | |
| 41 import dwt.graphics.GC; | |
| 42 import dwt.graphics.GCData; | |
| 43 import dwt.graphics.GlyphMetrics; | |
| 44 import dwt.graphics.Point; | |
| 45 import dwt.graphics.Rectangle; | |
| 46 import dwt.graphics.Region; | |
| 47 import dwt.graphics.Resource; | |
| 48 import dwt.graphics.TextStyle; | |
| 49 | |
| 50 import tango.text.convert.Format; | |
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Fix: make MARK copy work correctly mit multiple chars.
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51 import Utf = tango.text.convert.Utf; |
| 29 | 52 import dwt.dwthelper.utils; |
| 30 | 53 import dwt.dwthelper.System; |
| 29 | 54 |
| 227 | 55 |
| 29 | 56 /** |
| 57 * <code>TextLayout</code> is a graphic object that represents | |
| 58 * styled text. | |
| 59 * <p> | |
| 60 * Instances of this class provide support for drawing, cursor | |
| 61 * navigation, hit testing, text wrapping, alignment, tab expansion | |
| 62 * line breaking, etc. These are aspects required for rendering internationalized text. | |
| 63 * </p><p> | |
| 64 * Application code must explicitly invoke the <code>TextLayout#dispose()</code> | |
| 65 * method to release the operating system resources managed by each instance | |
| 66 * when those instances are no longer required. | |
| 67 * </p> | |
| 68 * | |
| 246 | 69 * @see <a href="http://www.eclipse.org/swt/snippets/#textlayout">TextLayout, TextStyle snippets</a> |
| 70 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: CustomControlExample, StyledText tab</a> | |
| 71 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
| 72 * | |
| 73 * @since 3.0 | |
| 29 | 74 */ |
| 75 public final class TextLayout : Resource { | |
| 227 | 76 |
| 213 | 77 alias Resource.init_ init_; |
| 78 | |
| 227 | 79 /++ |
| 229 | 80 + DWT doku |
| 81 + The styles has at minimum 2 member, each with a start. The last element is the end marker. | |
| 82 + | |
| 83 + invariant{ | |
| 84 + assert( stylesCount >= 2 ); | |
| 85 + assert( stylesCount <= styles.length ); | |
| 86 + assert( styles[stylesCount-1] ); | |
| 87 + assert( styles[stylesCount-1].start is text.length ); | |
| 88 + } | |
| 89 +/ | |
| 227 | 90 |
| 91 | |
| 29 | 92 Font font; |
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93 String text; |
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94 wchar[] wtext; |
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95 char[] segmentsText; |
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96 wchar[] segmentsWText; // DWT |
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97 int[] index8to16; // DWT |
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98 int[] index16to8; // DWT |
| 29 | 99 int lineSpacing; |
| 100 int ascent, descent; | |
| 101 int alignment; | |
| 102 int wrapWidth; | |
| 103 int orientation; | |
| 104 int indent; | |
| 105 bool justify; | |
| 106 int[] tabs; | |
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107 int[] segments; // indices in 'text' |
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108 int[] wsegments; // DWT indices in 'wtext' |
| 29 | 109 StyleItem[] styles; |
| 213 | 110 int stylesCount; |
| 29 | 111 |
| 112 StyleItem[] allRuns; | |
| 113 StyleItem[][] runs; | |
| 114 int[] lineOffset, lineY, lineWidth; | |
| 30 | 115 void* mLangFontLink2; |
| 29 | 116 |
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Fix: make MARK copy work correctly mit multiple chars.
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117 static const dchar LTR_MARK = '\u200E', RTL_MARK = '\u200F'; |
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118 static const wchar LTR_MARKw = '\u200E', RTL_MARKw = '\u200F'; |
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119 static const String STR_LTR_MARK = "\u200E", STR_RTL_MARK = "\u200F"; |
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120 static const wchar[] WSTR_LTR_MARK = "\u200E"w, WSTR_RTL_MARK = "\u200F"w; |
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Fix: make MARK copy work correctly mit multiple chars.
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121 static const int MARK_SIZE = 3; |
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122 static const int WMARK_SIZE = 1; |
| 29 | 123 static const int SCRIPT_VISATTR_SIZEOF = 2; |
| 124 static const int GOFFSET_SIZEOF = 8; | |
| 80 | 125 private static byte[16] CLSID_CMultiLanguage; |
| 126 private static byte[16] IID_IMLangFontLink2; | |
| 127 private static bool static_this_completed = false; | |
| 128 private static void static_this() { | |
| 129 // in case of allready initialized, we can check and leave without lock | |
| 130 if( static_this_completed ){ | |
| 131 return; | |
| 132 } | |
| 133 synchronized { | |
| 134 if( !static_this_completed ){ | |
| 306 | 135 OS.IIDFromString("{275c23e2-3747-11d0-9fea-00aa003f8646}\0".toWCharArray().ptr, CLSID_CMultiLanguage.ptr); |
| 136 OS.IIDFromString("{DCCFC162-2B38-11d2-B7EC-00C04F8F5D9A}\0".toWCharArray().ptr, IID_IMLangFontLink2.ptr); | |
| 80 | 137 static_this_completed = true; |
| 138 } | |
| 139 } | |
| 29 | 140 } |
| 141 | |
| 213 | 142 /* IME has a copy of these constants */ |
| 143 static const int UNDERLINE_IME_DOT = 1 << 16; | |
| 144 static const int UNDERLINE_IME_DASH = 2 << 16; | |
| 145 static const int UNDERLINE_IME_THICK = 3 << 16; | |
| 146 | |
| 29 | 147 class StyleItem { |
| 148 TextStyle style; | |
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149 // DWT: start, lenght relative to segmentsText |
| 29 | 150 int start, length; |
| 151 bool lineBreak, softBreak, tab; | |
| 152 | |
| 153 /*Script cache and analysis */ | |
| 154 SCRIPT_ANALYSIS analysis; | |
| 155 SCRIPT_CACHE* psc; | |
| 156 | |
| 157 /*Shape info (malloc when the run is shaped) */ | |
| 158 WORD* glyphs; | |
| 159 int glyphCount; | |
| 160 WORD* clusters; | |
| 161 SCRIPT_VISATTR* visAttrs; | |
| 162 | |
| 163 /*Place info (malloc when the run is placed) */ | |
| 164 int* advances; | |
| 30 | 165 GOFFSET* goffsets; |
| 166 int width; | |
| 167 int ascent; | |
| 168 int descent; | |
| 169 int leading; | |
| 170 int x; | |
| 213 | 171 int underlinePos, underlineThickness; |
| 172 int strikeoutPos, strikeoutThickness; | |
| 29 | 173 |
| 174 /* Justify info (malloc during computeRuns) */ | |
| 175 int* justify; | |
| 176 | |
| 177 /* ScriptBreak */ | |
| 178 SCRIPT_LOGATTR* psla; | |
| 179 | |
| 30 | 180 HFONT fallbackFont; |
| 29 | 181 |
| 182 void free() { | |
| 183 auto hHeap = OS.GetProcessHeap(); | |
| 184 if (psc !is null) { | |
| 185 OS.ScriptFreeCache (psc); | |
| 186 OS.HeapFree(hHeap, 0, psc); | |
| 187 psc = null; | |
| 188 } | |
| 189 if (glyphs !is null) { | |
| 190 OS.HeapFree(hHeap, 0, glyphs); | |
| 191 glyphs = null; | |
| 192 glyphCount = 0; | |
| 193 } | |
| 194 if (clusters !is null) { | |
| 195 OS.HeapFree(hHeap, 0, clusters); | |
| 196 clusters = null; | |
| 197 } | |
| 198 if (visAttrs !is null) { | |
| 199 OS.HeapFree(hHeap, 0, visAttrs); | |
| 200 visAttrs = null; | |
| 201 } | |
| 202 if (advances !is null) { | |
| 203 OS.HeapFree(hHeap, 0, advances); | |
| 204 advances = null; | |
| 205 } | |
| 206 if (goffsets !is null) { | |
| 207 OS.HeapFree(hHeap, 0, goffsets); | |
| 208 goffsets = null; | |
| 209 } | |
| 210 if (justify !is null) { | |
| 211 OS.HeapFree(hHeap, 0, justify); | |
| 212 justify = null; | |
| 213 } | |
| 214 if (psla !is null) { | |
| 215 OS.HeapFree(hHeap, 0, psla); | |
| 216 psla = null; | |
| 217 } | |
| 218 if (fallbackFont !is null) { | |
| 246 | 219 OS.DeleteObject(fallbackFont); |
| 29 | 220 fallbackFont = null; |
| 221 } | |
| 30 | 222 width = 0; |
| 223 ascent = 0; | |
| 224 descent = 0; | |
| 225 x = 0; | |
| 29 | 226 lineBreak = softBreak = false; |
| 227 } | |
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228 override public String toString () { |
| 29 | 229 return Format( "StyleItem {{{}, {}}", start, style ); |
| 230 } | |
| 231 } | |
| 232 | |
| 233 /** | |
| 234 * Constructs a new instance of this class on the given device. | |
| 235 * <p> | |
| 236 * You must dispose the text layout when it is no longer required. | |
| 237 * </p> | |
| 238 * | |
| 239 * @param device the device on which to allocate the text layout | |
| 240 * | |
| 241 * @exception IllegalArgumentException <ul> | |
| 242 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 243 * </ul> | |
| 244 * | |
| 245 * @see #dispose() | |
| 246 */ | |
| 247 public this (Device device) { | |
| 80 | 248 static_this(); |
| 213 | 249 super(device); |
| 29 | 250 wrapWidth = ascent = descent = -1; |
| 251 lineSpacing = 0; | |
| 252 orientation = DWT.LEFT_TO_RIGHT; | |
| 253 styles = new StyleItem[2]; | |
| 254 styles[0] = new StyleItem(); | |
| 255 styles[1] = new StyleItem(); | |
| 213 | 256 stylesCount = 2; |
| 29 | 257 text = ""; //$NON-NLS-1$ |
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258 wtext = ""w; |
| 30 | 259 void* ppv; |
| 260 OS.OleInitialize(null); | |
| 261 if (OS.CoCreateInstance(CLSID_CMultiLanguage.ptr, null, OS.CLSCTX_INPROC_SERVER, IID_IMLangFontLink2.ptr, cast(void*)&ppv) is OS.S_OK) { | |
| 262 mLangFontLink2 = ppv; | |
| 29 | 263 } |
| 213 | 264 init_(); |
| 29 | 265 } |
| 266 | |
| 267 void breakRun(StyleItem run) { | |
| 30 | 268 if (run.psla !is null) return; |
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269 wchar[] chars = segmentsWText[ index8to16[ run.start ] .. index8to16[ run.start + run.length ] ]; |
| 30 | 270 auto hHeap = OS.GetProcessHeap(); |
| 271 run.psla = cast(SCRIPT_LOGATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_LOGATTR.sizeof * chars.length); | |
| 272 if (run.psla is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 273 OS.ScriptBreak(chars.ptr, chars.length, &run.analysis, run.psla); | |
| 29 | 274 } |
| 275 | |
| 276 void checkLayout () { | |
| 277 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); | |
| 278 } | |
| 279 | |
| 280 /* | |
| 281 * Compute the runs: itemize, shape, place, and reorder the runs. | |
| 282 * Break paragraphs into lines, wraps the text, and initialize caches. | |
| 283 */ | |
| 284 void computeRuns (GC gc) { | |
| 285 if (runs !is null) return; | |
| 30 | 286 auto hDC = gc !is null ? gc.handle : device.internal_new_GC(null); |
| 287 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 288 allRuns = itemize(); |
| 289 for (int i=0; i<allRuns.length - 1; i++) { | |
| 290 StyleItem run = allRuns[i]; | |
| 291 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 292 shape(srcHdc, run); | |
| 293 } | |
| 30 | 294 SCRIPT_LOGATTR* logAttr; |
| 295 SCRIPT_PROPERTIES* properties; | |
| 29 | 296 int lineWidth = indent, lineStart = 0, lineCount = 1; |
| 297 for (int i=0; i<allRuns.length - 1; i++) { | |
| 298 StyleItem run = allRuns[i]; | |
| 299 if (run.length is 1) { | |
| 300 char ch = segmentsText.charAt(run.start); | |
| 301 switch (ch) { | |
| 302 case '\t': { | |
| 303 run.tab = true; | |
| 304 if (tabs is null) break; | |
| 305 int tabsLength = tabs.length, j; | |
| 306 for (j = 0; j < tabsLength; j++) { | |
| 307 if (tabs[j] > lineWidth) { | |
| 308 run.width = tabs[j] - lineWidth; | |
| 309 break; | |
| 310 } | |
| 311 } | |
| 312 if (j is tabsLength) { | |
| 313 int tabX = tabs[tabsLength-1]; | |
| 314 int lastTabWidth = tabsLength > 1 ? tabs[tabsLength-1] - tabs[tabsLength-2] : tabs[0]; | |
| 315 if (lastTabWidth > 0) { | |
| 316 while (tabX <= lineWidth) tabX += lastTabWidth; | |
| 317 run.width = tabX - lineWidth; | |
| 318 } | |
| 319 } | |
| 320 break; | |
| 321 } | |
| 322 case '\n': { | |
| 323 run.lineBreak = true; | |
| 324 break; | |
| 325 } | |
| 326 case '\r': { | |
| 327 run.lineBreak = true; | |
| 328 StyleItem next = allRuns[i + 1]; | |
| 329 if (next.length !is 0 && segmentsText.charAt(next.start) is '\n') { | |
| 330 run.length += 1; | |
| 331 next.free(); | |
| 246 | 332 StyleItem[] newAllRuns = new StyleItem[allRuns.length - 1]; |
| 333 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 334 System.arraycopy(allRuns, i + 2, newAllRuns, i + 1, allRuns.length - i - 2); | |
| 335 allRuns = newAllRuns; | |
| 29 | 336 } |
| 337 break; | |
| 338 } | |
| 81 | 339 default: |
| 29 | 340 } |
| 341 } | |
| 342 if (wrapWidth !is -1 && lineWidth + run.width > wrapWidth && !run.tab) { | |
| 343 int start = 0; | |
| 344 int[] piDx = new int[run.length]; | |
| 345 if (run.style !is null && run.style.metrics !is null) { | |
| 346 piDx[0] = run.width; | |
| 347 } else { | |
| 30 | 348 OS.ScriptGetLogicalWidths(&run.analysis, run.length, run.glyphCount, run.advances, run.clusters, run.visAttrs, piDx.ptr); |
| 29 | 349 } |
| 350 int width = 0, maxWidth = wrapWidth - lineWidth; | |
| 351 while (width + piDx[start] < maxWidth) { | |
| 352 width += piDx[start++]; | |
| 353 } | |
| 354 int firstStart = start; | |
| 355 int firstIndice = i; | |
| 356 while (i >= lineStart) { | |
| 357 breakRun(run); | |
| 358 while (start >= 0) { | |
| 30 | 359 logAttr = run.psla + start; |
| 360 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 361 if (logAttr.fSoftBreak || logAttr.fWhiteSpace) break; |
| 362 start--; | |
| 363 } | |
| 364 | |
| 365 /* | |
| 366 * Bug in Windows. For some reason Uniscribe sets the fSoftBreak flag for the first letter | |
| 367 * after a letter with an accent. This cause a break line to be set in the middle of a word. | |
| 368 * The fix is to detect the case and ignore fSoftBreak forcing the algorithm keep searching. | |
| 369 */ | |
| 370 if (start is 0 && i !is lineStart && !run.tab) { | |
| 371 if (logAttr.fSoftBreak && !logAttr.fWhiteSpace) { | |
| 30 | 372 properties = device.scripts[run.analysis.eScript]; |
| 373 //OS.MoveMemory(properties, device.scripts[run.analysis.eScript], SCRIPT_PROPERTIES.sizeof); | |
| 29 | 374 int langID = properties.langid; |
| 375 StyleItem pRun = allRuns[i - 1]; | |
| 30 | 376 //OS.MoveMemory(properties, device.scripts[pRun.analysis.eScript], SCRIPT_PROPERTIES.sizeof); |
| 29 | 377 if (properties.langid is langID || langID is OS.LANG_NEUTRAL || properties.langid is OS.LANG_NEUTRAL) { |
| 378 breakRun(pRun); | |
| 30 | 379 logAttr = pRun.psla + (pRun.length - 1); |
| 380 //OS.MoveMemory(logAttr, pRun.psla + ((pRun.length - 1) * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 381 if (!logAttr.fWhiteSpace) start = -1; |
| 382 } | |
| 383 } | |
| 384 } | |
| 385 if (start >= 0 || i is lineStart) break; | |
| 386 run = allRuns[--i]; | |
| 387 start = run.length - 1; | |
| 388 } | |
| 389 if (start is 0 && i !is lineStart && !run.tab) { | |
| 390 run = allRuns[--i]; | |
| 391 } else if (start <= 0 && i is lineStart) { | |
| 213 | 392 if (lineWidth is wrapWidth && firstIndice > 0) { |
| 393 i = firstIndice - 1; | |
| 394 run = allRuns[i]; | |
| 395 start = run.length; | |
| 396 } else { | |
| 397 i = firstIndice; | |
| 398 run = allRuns[i]; | |
| 399 start = Math.max(1, firstStart); | |
| 400 } | |
| 29 | 401 } |
| 402 breakRun(run); | |
| 403 while (start < run.length) { | |
| 30 | 404 logAttr = run.psla + start; |
| 405 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 406 if (!logAttr.fWhiteSpace) break; |
| 407 start++; | |
| 408 } | |
| 409 if (0 < start && start < run.length) { | |
| 410 StyleItem newRun = new StyleItem(); | |
| 411 newRun.start = run.start + start; | |
| 412 newRun.length = run.length - start; | |
| 413 newRun.style = run.style; | |
| 246 | 414 newRun.analysis = cloneScriptAnalysis(run.analysis); |
| 29 | 415 run.free(); |
| 416 run.length = start; | |
| 417 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 246 | 418 run.analysis.fNoGlyphIndex = false; |
| 29 | 419 shape (srcHdc, run); |
| 420 OS.SelectObject(srcHdc, getItemFont(newRun)); | |
| 246 | 421 newRun.analysis.fNoGlyphIndex = false; |
| 29 | 422 shape (srcHdc, newRun); |
| 423 StyleItem[] newAllRuns = new StyleItem[allRuns.length + 1]; | |
| 424 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 425 System.arraycopy(allRuns, i + 1, newAllRuns, i + 2, allRuns.length - i - 1); | |
| 426 allRuns = newAllRuns; | |
| 427 allRuns[i + 1] = newRun; | |
| 428 } | |
| 429 if (i !is allRuns.length - 2) { | |
| 430 run.softBreak = run.lineBreak = true; | |
| 431 } | |
| 432 } | |
| 433 lineWidth += run.width; | |
| 434 if (run.lineBreak) { | |
| 435 lineStart = i + 1; | |
| 436 lineWidth = run.softBreak ? 0 : indent; | |
| 437 lineCount++; | |
| 438 } | |
| 439 } | |
| 440 lineWidth = 0; | |
| 30 | 441 runs = new StyleItem[][](lineCount); |
| 29 | 442 lineOffset = new int[lineCount + 1]; |
| 443 lineY = new int[lineCount + 1]; | |
| 444 this.lineWidth = new int[lineCount]; | |
| 445 int lineRunCount = 0, line = 0; | |
| 446 int ascent = Math.max(0, this.ascent); | |
| 447 int descent = Math.max(0, this.descent); | |
| 448 StyleItem[] lineRuns = new StyleItem[allRuns.length]; | |
| 449 for (int i=0; i<allRuns.length; i++) { | |
| 450 StyleItem run = allRuns[i]; | |
| 451 lineRuns[lineRunCount++] = run; | |
| 452 lineWidth += run.width; | |
| 453 ascent = Math.max(ascent, run.ascent); | |
| 454 descent = Math.max(descent, run.descent); | |
| 455 if (run.lineBreak || i is allRuns.length - 1) { | |
| 456 /* Update the run metrics if the last run is a hard break. */ | |
| 457 if (lineRunCount is 1 && i is allRuns.length - 1) { | |
| 458 TEXTMETRIC lptm; | |
| 459 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 460 OS.GetTextMetrics(srcHdc, &lptm); | |
| 461 run.ascent = lptm.tmAscent; | |
| 462 run.descent = lptm.tmDescent; | |
| 463 ascent = Math.max(ascent, run.ascent); | |
| 464 descent = Math.max(descent, run.descent); | |
| 465 } | |
| 466 runs[line] = new StyleItem[lineRunCount]; | |
| 467 System.arraycopy(lineRuns, 0, runs[line], 0, lineRunCount); | |
| 468 | |
| 469 if (justify && wrapWidth !is -1 && run.softBreak && lineWidth > 0) { | |
| 470 if (line is 0) { | |
| 471 lineWidth += indent; | |
| 472 } else { | |
| 473 StyleItem[] previousLine = runs[line - 1]; | |
| 474 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 475 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 476 lineWidth += indent; | |
| 477 } | |
| 478 } | |
| 30 | 479 auto hHeap = OS.GetProcessHeap(); |
| 29 | 480 int newLineWidth = 0; |
| 481 for (int j = 0; j < runs[line].length; j++) { | |
| 482 StyleItem item = runs[line][j]; | |
| 483 int iDx = item.width * wrapWidth / lineWidth; | |
| 484 if (iDx !is item.width) { | |
| 30 | 485 item.justify = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, item.glyphCount * 4); |
| 486 if (item.justify is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 487 OS.ScriptJustify(item.visAttrs, item.advances, item.glyphCount, iDx - item.width, 2, item.justify); |
| 488 item.width = iDx; | |
| 489 } | |
| 490 newLineWidth += item.width; | |
| 491 } | |
| 492 lineWidth = newLineWidth; | |
| 493 } | |
| 494 this.lineWidth[line] = lineWidth; | |
| 495 | |
| 496 StyleItem lastRun = runs[line][lineRunCount - 1]; | |
| 497 int lastOffset = lastRun.start + lastRun.length; | |
| 498 runs[line] = reorder(runs[line], i is allRuns.length - 1); | |
| 499 lastRun = runs[line][lineRunCount - 1]; | |
| 500 if (run.softBreak && run !is lastRun) { | |
| 501 run.softBreak = run.lineBreak = false; | |
| 502 lastRun.softBreak = lastRun.lineBreak = true; | |
| 503 } | |
| 504 | |
| 505 lineWidth = getLineIndent(line); | |
| 506 for (int j = 0; j < runs[line].length; j++) { | |
| 507 runs[line][j].x = lineWidth; | |
| 508 lineWidth += runs[line][j].width; | |
| 509 } | |
| 510 line++; | |
| 511 lineY[line] = lineY[line - 1] + ascent + descent + lineSpacing; | |
| 512 lineOffset[line] = lastOffset; | |
| 513 lineRunCount = lineWidth = 0; | |
| 514 ascent = Math.max(0, this.ascent); | |
| 515 descent = Math.max(0, this.descent); | |
| 516 } | |
| 517 } | |
| 30 | 518 if (srcHdc !is null) OS.DeleteDC(srcHdc); |
| 29 | 519 if (gc is null) device.internal_dispose_GC(hDC, null); |
| 520 } | |
| 521 | |
| 213 | 522 void destroy () { |
| 29 | 523 freeRuns(); |
| 524 font = null; | |
| 525 text = null; | |
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526 wtext = null; |
| 29 | 527 segmentsText = null; |
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528 segmentsWText = null; |
| 29 | 529 tabs = null; |
| 530 styles = null; | |
| 531 runs = null; | |
| 532 lineOffset = null; | |
| 533 lineY = null; | |
| 534 lineWidth = null; | |
| 30 | 535 if (mLangFontLink2 !is null) { |
| 29 | 536 /* Release() */ |
| 537 OS.VtblCall(2, mLangFontLink2); | |
| 30 | 538 mLangFontLink2 = null; |
| 29 | 539 } |
| 540 OS.OleUninitialize(); | |
| 541 } | |
| 542 | |
| 249 | 543 SCRIPT_ANALYSIS cloneScriptAnalysis ( inout SCRIPT_ANALYSIS src) { |
| 544 SCRIPT_ANALYSIS dst; | |
| 246 | 545 dst.eScript = src.eScript; |
| 546 dst.fRTL = src.fRTL; | |
| 547 dst.fLayoutRTL = src.fLayoutRTL; | |
| 548 dst.fLinkBefore = src.fLinkBefore; | |
| 549 dst.fLinkAfter = src.fLinkAfter; | |
| 550 dst.fLogicalOrder = src.fLogicalOrder; | |
| 551 dst.fNoGlyphIndex = src.fNoGlyphIndex; | |
| 552 dst.s.uBidiLevel = src.s.uBidiLevel; | |
| 553 dst.s.fOverrideDirection = src.s.fOverrideDirection; | |
| 554 dst.s.fInhibitSymSwap = src.s.fInhibitSymSwap; | |
| 555 dst.s.fCharShape = src.s.fCharShape; | |
| 556 dst.s.fDigitSubstitute = src.s.fDigitSubstitute; | |
| 557 dst.s.fInhibitLigate = src.s.fInhibitLigate; | |
| 558 dst.s.fDisplayZWG = src.s.fDisplayZWG; | |
| 559 dst.s.fArabicNumContext = src.s.fArabicNumContext; | |
| 560 dst.s.fGcpClusters = src.s.fGcpClusters; | |
| 561 dst.s.fReserved = src.s.fReserved; | |
| 562 dst.s.fEngineReserved = src.s.fEngineReserved; | |
| 563 return dst; | |
| 564 } | |
| 565 | |
| 29 | 566 /** |
| 567 * Draws the receiver's text using the specified GC at the specified | |
| 568 * point. | |
| 569 * | |
| 570 * @param gc the GC to draw | |
| 571 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 572 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 573 * | |
| 574 * @exception DWTException <ul> | |
| 575 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 576 * </ul> | |
| 577 * @exception IllegalArgumentException <ul> | |
| 578 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 579 * </ul> | |
| 580 */ | |
| 581 public void draw (GC gc, int x, int y) { | |
| 582 draw(gc, x, y, -1, -1, null, null); | |
| 583 } | |
| 584 | |
| 585 /** | |
| 586 * Draws the receiver's text using the specified GC at the specified | |
| 587 * point. | |
| 588 * | |
| 589 * @param gc the GC to draw | |
| 590 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 591 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 592 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 593 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 594 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 595 * @param selectionBackground selection background, or NULL to use the system default color | |
| 596 * | |
| 597 * @exception DWTException <ul> | |
| 598 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 599 * </ul> | |
| 600 * @exception IllegalArgumentException <ul> | |
| 601 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 602 * </ul> | |
| 603 */ | |
| 604 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground) { | |
| 605 draw(gc, x, y, selectionStart, selectionEnd, selectionForeground, selectionBackground, 0); | |
| 606 } | |
| 607 | |
| 608 /** | |
| 609 * Draws the receiver's text using the specified GC at the specified | |
| 610 * point. | |
| 611 * <p> | |
| 612 * The parameter <code>flags</code> can include one of <code>DWT.DELIMITER_SELECTION</code> | |
| 613 * or <code>DWT.FULL_SELECTION</code> to specify the selection behavior on all lines except | |
| 614 * for the last line, and can also include <code>DWT.LAST_LINE_SELECTION</code> to extend | |
| 615 * the specified selection behavior to the last line. | |
| 616 * </p> | |
| 617 * @param gc the GC to draw | |
| 618 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 619 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 620 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 621 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 622 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 623 * @param selectionBackground selection background, or NULL to use the system default color | |
| 624 * @param flags drawing options | |
| 625 * | |
| 626 * @exception DWTException <ul> | |
| 627 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 628 * </ul> | |
| 629 * @exception IllegalArgumentException <ul> | |
| 630 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 631 * </ul> | |
| 632 * | |
| 633 * @since 3.3 | |
| 634 */ | |
| 635 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground, int flags) { | |
| 636 checkLayout(); | |
| 637 computeRuns(gc); | |
| 638 if (gc is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 639 if (gc.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 640 if (selectionForeground !is null && selectionForeground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 641 if (selectionBackground !is null && selectionBackground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 30 | 642 int length = text.length; |
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643 int wlength = wtext.length; |
| 29 | 644 if (length is 0 && flags is 0) return; |
| 30 | 645 auto hdc = gc.handle; |
| 29 | 646 Rectangle clip = gc.getClipping(); |
| 647 GCData data = gc.data; | |
| 30 | 648 auto gdipGraphics = data.gdipGraphics; |
| 649 auto foreground = data.foreground; | |
| 650 auto alpha = data.alpha; | |
| 651 bool gdip = gdipGraphics !is null && (alpha !is 0xFF || data.foregroundPattern !is null); | |
| 652 HRGN clipRgn; | |
| 29 | 653 float[] lpXform = null; |
| 30 | 654 Gdip.Rect gdipRect; |
| 655 if (gdipGraphics !is null && !gdip) { | |
| 656 auto matrix = Gdip.Matrix_new(1, 0, 0, 1, 0, 0); | |
| 657 if (matrix is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 658 Gdip.Graphics_GetTransform(gdipGraphics, matrix); |
| 30 | 659 auto identity_ = gc.identity(); |
| 660 Gdip.Matrix_Invert(identity_); | |
| 661 Gdip.Matrix_Multiply(matrix, identity_, Gdip.MatrixOrderAppend); | |
| 662 Gdip.Matrix_delete(identity_); | |
| 29 | 663 if (!Gdip.Matrix_IsIdentity(matrix)) { |
| 664 lpXform = new float[6]; | |
| 213 | 665 Gdip.Matrix_GetElements(matrix, lpXform.ptr); |
| 29 | 666 } |
| 667 Gdip.Matrix_delete(matrix); | |
| 668 if ((data.style & DWT.MIRRORED) !is 0 && lpXform !is null) { | |
| 669 gdip = true; | |
| 670 lpXform = null; | |
| 671 } else { | |
| 672 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeNone); | |
| 30 | 673 auto rgn = Gdip.Region_new(); |
| 29 | 674 Gdip.Graphics_GetClip(gdipGraphics, rgn); |
| 675 if (!Gdip.Region_IsInfinite(rgn, gdipGraphics)) { | |
| 676 clipRgn = Gdip.Region_GetHRGN(rgn, gdipGraphics); | |
| 677 } | |
| 678 Gdip.Region_delete(rgn); | |
| 679 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeHalf); | |
| 680 hdc = Gdip.Graphics_GetHDC(gdipGraphics); | |
| 681 } | |
| 682 } | |
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683 Gdip.Brush foregroundBrush; |
| 30 | 684 int state = 0; |
| 29 | 685 if (gdip) { |
| 686 gc.checkGC(GC.FOREGROUND); | |
| 687 foregroundBrush = gc.getFgBrush(); | |
| 688 } else { | |
| 689 state = OS.SaveDC(hdc); | |
| 690 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 691 OS.SetLayout(hdc, OS.GetLayout(hdc) | OS.LAYOUT_RTL); | |
| 692 } | |
| 693 if (lpXform !is null) { | |
| 694 OS.SetGraphicsMode(hdc, OS.GM_ADVANCED); | |
| 30 | 695 OS.SetWorldTransform(hdc, cast(XFORM*)lpXform.ptr); |
| 29 | 696 } |
| 30 | 697 if (clipRgn !is null) { |
| 29 | 698 OS.SelectClipRgn(hdc, clipRgn); |
| 699 OS.DeleteObject(clipRgn); | |
| 700 } | |
| 701 } | |
| 702 bool hasSelection = selectionStart <= selectionEnd && selectionStart !is -1 && selectionEnd !is -1; | |
| 703 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 704 selectionStart = Math.min(Math.max(0, selectionStart), length - 1); | |
| 705 selectionEnd = Math.min(Math.max(0, selectionEnd), length - 1); | |
| 706 if (selectionForeground is null) selectionForeground = device.getSystemColor(DWT.COLOR_LIST_SELECTION_TEXT); | |
| 707 if (selectionBackground is null) selectionBackground = device.getSystemColor(DWT.COLOR_LIST_SELECTION); | |
| 708 selectionStart = translateOffset(selectionStart); | |
| 709 selectionEnd = translateOffset(selectionEnd); | |
| 710 } | |
| 30 | 711 RECT rect; |
| 213 | 712 Gdip.Brush selBrush; |
| 713 Gdip.Pen selPen; | |
| 714 Gdip.Brush selBrushFg; | |
| 30 | 715 |
| 29 | 716 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { |
| 717 if (gdip) { | |
| 30 | 718 auto bg = selectionBackground.handle; |
| 719 auto argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 720 auto color = Gdip.Color_new(argb); | |
| 213 | 721 selBrush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 722 Gdip.Color_delete(color); |
| 30 | 723 auto fg = selectionForeground.handle; |
| 29 | 724 argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 725 color = Gdip.Color_new(argb); | |
| 213 | 726 selBrushFg = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 727 selPen = cast(Gdip.Pen) Gdip.Pen_new( cast(Gdip.Brush)selBrushFg, 1); | |
| 29 | 728 Gdip.Color_delete(color); |
| 729 } else { | |
| 213 | 730 selBrush = cast(Gdip.Brush)OS.CreateSolidBrush(selectionBackground.handle); |
| 731 selPen = cast(Gdip.Pen)OS.CreatePen(OS.PS_SOLID, 1, selectionForeground.handle); | |
| 29 | 732 } |
| 733 } | |
| 734 int offset = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? -1 : 0; | |
| 735 OS.SetBkMode(hdc, OS.TRANSPARENT); | |
| 736 for (int line=0; line<runs.length; line++) { | |
| 737 int drawX = x + getLineIndent(line); | |
| 738 int drawY = y + lineY[line]; | |
| 739 StyleItem[] lineRuns = runs[line]; | |
| 213 | 740 int lineHeight = lineY[line+1] - lineY[line] - lineSpacing; |
| 29 | 741 if (flags !is 0 && (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0)) { |
| 742 bool extents = false; | |
| 743 if (line is runs.length - 1 && (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 744 extents = true; | |
| 745 } else { | |
| 746 StyleItem run = lineRuns[lineRuns.length - 1]; | |
| 747 if (run.lineBreak && !run.softBreak) { | |
| 748 if (selectionStart <= run.start && run.start <= selectionEnd) extents = true; | |
| 749 } else { | |
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750 int endOffset = segmentsText.getAbsoluteCodePointOffset( run.start + run.length, -1 ); |
| 29 | 751 if (selectionStart <= endOffset && endOffset < selectionEnd && (flags & DWT.FULL_SELECTION) !is 0) { |
| 752 extents = true; | |
| 753 } | |
| 754 } | |
| 755 } | |
| 756 if (extents) { | |
| 757 int width; | |
| 758 if ((flags & DWT.FULL_SELECTION) !is 0) { | |
| 759 width = OS.IsWin95 ? 0x7FFF : 0x6FFFFFF; | |
| 760 } else { | |
| 213 | 761 width = lineHeight / 3; |
| 29 | 762 } |
| 763 if (gdip) { | |
| 213 | 764 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX + lineWidth[line], drawY, width, lineHeight); |
| 29 | 765 } else { |
| 766 OS.SelectObject(hdc, selBrush); | |
| 213 | 767 OS.PatBlt(hdc, drawX + lineWidth[line], drawY, width, lineHeight, OS.PATCOPY); |
| 29 | 768 } |
| 769 } | |
| 770 } | |
| 771 if (drawX > clip.x + clip.width) continue; | |
| 772 if (drawX + lineWidth[line] < clip.x) continue; | |
| 773 int baseline = Math.max(0, this.ascent); | |
| 213 | 774 int lineUnderlinePos = 0; |
| 29 | 775 for (int i = 0; i < lineRuns.length; i++) { |
| 776 baseline = Math.max(baseline, lineRuns[i].ascent); | |
| 213 | 777 lineUnderlinePos = Math.min(lineUnderlinePos, lineRuns[i].underlinePos); |
| 29 | 778 } |
| 779 int alignmentX = drawX; | |
| 780 for (int i = 0; i < lineRuns.length; i++) { | |
| 781 StyleItem run = lineRuns[i]; | |
| 782 if (run.length is 0) continue; | |
| 783 if (drawX > clip.x + clip.width) break; | |
| 784 if (drawX + run.width >= clip.x) { | |
| 785 if (!run.lineBreak || run.softBreak) { | |
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786 int end = segmentsText.getAbsoluteCodePointOffset( run.start + run.length, -1 ); |
| 29 | 787 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; |
| 788 if (fullSelection) { | |
| 789 if (gdip) { | |
| 213 | 790 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX, drawY, run.width, lineHeight); |
| 29 | 791 } else { |
| 792 OS.SelectObject(hdc, selBrush); | |
| 213 | 793 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 794 } |
| 795 } else { | |
| 796 if (run.style !is null && run.style.background !is null) { | |
| 30 | 797 auto bg = run.style.background.handle; |
| 29 | 798 if (gdip) { |
| 799 int argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 30 | 800 auto color = Gdip.Color_new(argb); |
| 801 auto brush = Gdip.SolidBrush_new(color); | |
| 213 | 802 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)brush, drawX, drawY, run.width, lineHeight); |
| 29 | 803 Gdip.Color_delete(color); |
| 804 Gdip.SolidBrush_delete(brush); | |
| 805 } else { | |
| 30 | 806 auto hBrush = OS.CreateSolidBrush (bg); |
| 807 auto oldBrush = OS.SelectObject(hdc, hBrush); | |
| 213 | 808 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 809 OS.SelectObject(hdc, oldBrush); |
| 810 OS.DeleteObject(hBrush); | |
| 811 } | |
| 812 } | |
| 813 bool partialSelection = hasSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 814 if (partialSelection) { | |
|
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changeset
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815 int selStart = index8to16[ Math.max(selectionStart, run.start) ] - index8to16[run.start]; |
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816 int selEnd = index8to16[ Math.min(selectionEnd, end) ] - index8to16[ run.start ]; |
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817 int cChars = index8to16[run.start+run.length] - index8to16[run.start]; // make it wchar |
| 29 | 818 int gGlyphs = run.glyphCount; |
| 30 | 819 int piX; |
| 820 int* advances = run.justify !is null ? run.justify : run.advances; | |
|
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821 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 30 | 822 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; |
| 29 | 823 rect.left = drawX + runX; |
| 824 rect.top = drawY; | |
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825 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 30 | 826 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; |
| 29 | 827 rect.right = drawX + runX; |
| 213 | 828 rect.bottom = drawY + lineHeight; |
| 29 | 829 if (gdip) { |
| 213 | 830 if (rect.left > rect.right) { |
| 831 int tmp = rect.left; | |
| 832 rect.left = rect.right; | |
| 833 rect.right = tmp; | |
| 834 } | |
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changeset
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835 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); |
| 29 | 836 } else { |
| 837 OS.SelectObject(hdc, selBrush); | |
| 838 OS.PatBlt(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); | |
| 839 } | |
| 840 } | |
| 841 } | |
| 842 } | |
| 843 } | |
| 844 drawX += run.width; | |
| 845 } | |
| 213 | 846 RECT* borderClip = null; |
| 29 | 847 drawX = alignmentX; |
| 848 for (int i = 0; i < lineRuns.length; i++) { | |
| 849 StyleItem run = lineRuns[i]; | |
| 850 if (run.length is 0) continue; | |
| 851 if (drawX > clip.x + clip.width) break; | |
| 852 if (drawX + run.width >= clip.x) { | |
| 853 if (!run.tab && (!run.lineBreak || run.softBreak) && !(run.style !is null && run.style.metrics !is null)) { | |
| 854 int end = run.start + run.length - 1; | |
| 855 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 856 bool partialSelection = hasSelection && !fullSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 857 OS.SelectObject(hdc, getItemFont(run)); | |
| 858 int drawRunY = drawY + (baseline - run.ascent); | |
| 859 if (partialSelection) { | |
|
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860 int selStart = Math.max(index8to16[selectionStart], index8to16[run.start]) - index8to16[run.start]; |
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861 int selEnd = Math.min(index8to16[selectionEnd], index8to16[end]) - index8to16[run.start]; |
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862 int cChars = index8to16[run.start+run.length] - index8to16[run.start]; // make it wchar |
| 29 | 863 int gGlyphs = run.glyphCount; |
| 30 | 864 int piX; |
| 865 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 866 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 867 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 868 rect.left = drawX + runX; |
| 869 rect.top = drawY; | |
| 30 | 870 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 871 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 872 rect.right = drawX + runX; |
| 873 rect.bottom = drawY + lineHeight; | |
| 874 } | |
| 875 if (gdip) { | |
| 876 OS.BeginPath(hdc); | |
| 30 | 877 OS.ScriptTextOut(hdc, run.psc, drawX, drawRunY, 0, null, &run.analysis , null, 0, run.glyphs, run.glyphCount, run.advances, run.justify, run.goffsets); |
| 29 | 878 OS.EndPath(hdc); |
| 879 int count = OS.GetPath(hdc, null, null, 0); | |
| 880 int[] points = new int[count*2]; | |
| 30 | 881 ubyte[] types = new ubyte[count]; |
| 882 OS.GetPath(hdc, cast(POINT*)points.ptr, types.ptr, count); | |
| 29 | 883 for (int typeIndex = 0; typeIndex < types.length; typeIndex++) { |
| 884 int newType = 0; | |
| 885 int type = types[typeIndex] & 0xFF; | |
| 886 switch (type & ~OS.PT_CLOSEFIGURE) { | |
| 887 case OS.PT_MOVETO: newType = Gdip.PathPointTypeStart; break; | |
| 888 case OS.PT_LINETO: newType = Gdip.PathPointTypeLine; break; | |
| 889 case OS.PT_BEZIERTO: newType = Gdip.PathPointTypeBezier; break; | |
| 81 | 890 default: |
| 29 | 891 } |
| 892 if ((type & OS.PT_CLOSEFIGURE) !is 0) newType |= Gdip.PathPointTypeCloseSubpath; | |
| 893 types[typeIndex] = cast(byte)newType; | |
| 894 } | |
| 213 | 895 auto path = Gdip.GraphicsPath_new(cast(Gdip.Point*)points.ptr, types.ptr, count, Gdip.FillModeAlternate); |
| 30 | 896 if (path is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 897 auto brush = foregroundBrush; | |
| 29 | 898 if (fullSelection) { |
|
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899 brush = cast(Gdip.Brush)selBrushFg; |
| 29 | 900 } else { |
| 901 if (run.style !is null && run.style.foreground !is null) { | |
| 30 | 902 auto fg = run.style.foreground.handle; |
| 29 | 903 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 30 | 904 auto color = Gdip.Color_new(argb); |
|
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905 brush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 906 Gdip.Color_delete(color); |
| 907 } | |
| 908 } | |
| 909 int gstate = 0; | |
| 910 if (partialSelection) { | |
| 911 gdipRect.X = rect.left; | |
| 912 gdipRect.Y = rect.top; | |
| 913 gdipRect.Width = rect.right - rect.left; | |
| 914 gdipRect.Height = rect.bottom - rect.top; | |
| 915 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 916 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeExclude); |
| 29 | 917 } |
| 918 int antialias = Gdip.Graphics_GetSmoothingMode(gdipGraphics), textAntialias = 0; | |
| 919 int mode = Gdip.Graphics_GetTextRenderingHint(data.gdipGraphics); | |
| 920 switch (mode) { | |
| 921 case Gdip.TextRenderingHintSystemDefault: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 922 case Gdip.TextRenderingHintSingleBitPerPixel: | |
| 923 case Gdip.TextRenderingHintSingleBitPerPixelGridFit: textAntialias = Gdip.SmoothingModeNone; break; | |
| 924 case Gdip.TextRenderingHintAntiAlias: | |
| 925 case Gdip.TextRenderingHintAntiAliasGridFit: | |
| 926 case Gdip.TextRenderingHintClearTypeGridFit: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 81 | 927 default: |
| 29 | 928 } |
| 929 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); | |
| 930 int gstate2 = 0; | |
| 931 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 932 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 933 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 934 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 935 } | |
| 936 Gdip.Graphics_FillPath(gdipGraphics, brush, path); | |
| 937 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 938 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 939 } | |
| 940 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); | |
| 213 | 941 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, brush, null, alpha); |
| 29 | 942 if (partialSelection) { |
| 943 Gdip.Graphics_Restore(gdipGraphics, gstate); | |
| 944 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 945 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeIntersect); |
| 29 | 946 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); |
| 213 | 947 if ((data.style & DWT.MIRRORED) !is 0) { |
| 948 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 949 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 950 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 951 } | |
| 952 Gdip.Graphics_FillPath(gdipGraphics, selBrushFg, path); | |
| 953 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 954 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 955 } | |
| 29 | 956 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); |
| 213 | 957 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, selBrushFg, &rect, alpha); |
| 29 | 958 Gdip.Graphics_Restore(gdipGraphics, gstate); |
| 959 } | |
| 213 | 960 borderClip = drawBorder(gdip, gdipGraphics, x, drawY, lineHeight, foregroundBrush, selBrushFg, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); |
| 29 | 961 Gdip.GraphicsPath_delete(path); |
|
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962 if ( brush !is cast(Gdip.Brush)selBrushFg && brush !is cast(Gdip.Brush)foregroundBrush) |
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963 Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); |
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964 } else { |
| 213 | 965 auto fg = foreground; |
|
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966 if (fullSelection) { |
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967 fg = selectionForeground.handle; |
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968 } else { |
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969 if (run.style !is null && run.style.foreground !is null) fg = run.style.foreground.handle; |
| 29 | 970 } |
| 971 OS.SetTextColor(hdc, fg); | |
| 30 | 972 OS.ScriptTextOut(hdc, run.psc, drawX + offset, drawRunY, 0, null, &run.analysis , null, 0, run.glyphs, run.glyphCount, run.advances, run.justify, run.goffsets); |
| 213 | 973 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)fg, null, alpha); |
| 29 | 974 if (partialSelection && fg !is selectionForeground.handle) { |
| 975 OS.SetTextColor(hdc, selectionForeground.handle); | |
| 30 | 976 OS.ScriptTextOut(hdc, run.psc, drawX + offset, drawRunY, OS.ETO_CLIPPED, &rect, &run.analysis , null, 0, run.glyphs, run.glyphCount, run.advances, run.justify, run.goffsets); |
| 213 | 977 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)selectionForeground.handle, &rect, alpha); |
| 29 | 978 } |
| 213 | 979 int selForeground = selectionForeground !is null ? selectionForeground.handle : 0; |
| 980 borderClip = drawBorder(gdip, hdc, x, drawY, lineHeight, cast(void*)foreground, cast(void*)selForeground, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); | |
| 29 | 981 } |
| 982 } | |
| 983 } | |
| 984 drawX += run.width; | |
| 985 } | |
| 986 } | |
| 987 if (gdip) { | |
|
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988 if (selBrush !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrush); |
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989 if (selBrushFg !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrushFg); |
| 213 | 990 if (selPen !is null) Gdip.Pen_delete(selPen); |
| 29 | 991 } else { |
| 992 OS.RestoreDC(hdc, state); | |
| 30 | 993 if (gdipGraphics !is null) Gdip.Graphics_ReleaseHDC(gdipGraphics, hdc); |
| 994 if (selBrush !is null) OS.DeleteObject (selBrush); | |
| 995 if (selPen !is null) OS.DeleteObject (selPen); | |
| 29 | 996 } |
| 997 } | |
| 998 | |
| 213 | 999 void drawLines(bool advance, void* graphics, int x, int lineBaseline, int lineUnderlinePos, int lineBottom, StyleItem[] line, int index, void* color, RECT* clipRect, int alpha) { |
| 1000 StyleItem run = line[index]; | |
| 1001 TextStyle style = run.style; | |
| 1002 if (style is null) return; | |
| 1003 if (!style.underline && !style.strikeout) return; | |
| 1004 int runX = x + run.x; | |
| 1005 int underlineY = lineBaseline - lineUnderlinePos; | |
| 1006 int strikeoutY = lineBaseline - run.strikeoutPos; | |
| 1007 if (advance) { | |
| 1008 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeNone); | |
| 1009 auto brush = color; | |
| 1010 if (style.underline) { | |
| 1011 if (style.underlineColor !is null) { | |
| 1012 int fg = style.underlineColor.handle; | |
| 1013 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 1014 auto gdiColor = Gdip.Color_new(argb); | |
| 1015 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1016 Gdip.Color_delete(gdiColor); | |
| 1017 } | |
| 1018 switch (style.underlineStyle) { | |
| 1019 case DWT.UNDERLINE_SQUIGGLE: | |
| 1020 case DWT.UNDERLINE_ERROR: { | |
| 1021 int squigglyThickness = 1; | |
| 1022 int squigglyHeight = 2 * squigglyThickness; | |
| 1023 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 1024 int squigglyX = runX; | |
| 1025 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 1026 squigglyX = x + line[i - 1].x; | |
| 1027 } | |
| 1028 int gstate = 0; | |
| 1029 if (clipRect is null) { | |
| 1030 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1031 Gdip.Rect gdipRect; | |
| 1032 gdipRect.X = runX; | |
| 1033 gdipRect.Y = squigglyY; | |
| 1034 gdipRect.Width = run.width + 1; | |
| 1035 gdipRect.Height = squigglyY + squigglyHeight + 1; | |
| 1036 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1037 } | |
| 1038 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1039 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, squigglyThickness); | |
| 1040 Gdip.Graphics_DrawLines(cast(Gdip.Graphics)graphics, pen, cast(Gdip.Point*)points.ptr, points.length / 2); | |
| 1041 Gdip.Pen_delete(pen); | |
| 1042 if (gstate !is 0) Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1043 break; | |
| 1044 } | |
| 1045 case DWT.UNDERLINE_SINGLE: | |
| 1046 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1047 break; | |
| 1048 case DWT.UNDERLINE_DOUBLE: | |
| 1049 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1050 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY + run.underlineThickness * 2, run.width, run.underlineThickness); | |
| 1051 break; | |
| 1052 case UNDERLINE_IME_THICK: | |
| 1053 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX - run.underlineThickness, underlineY, run.width, run.underlineThickness * 2); | |
| 1054 break; | |
| 1055 case UNDERLINE_IME_DOT: | |
| 1056 case UNDERLINE_IME_DASH: { | |
| 1057 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, 1); | |
| 1058 int dashStyle = style.underlineStyle is UNDERLINE_IME_DOT ? Gdip.DashStyleDot : Gdip.DashStyleDash; | |
| 1059 Gdip.Pen_SetDashStyle(pen, dashStyle); | |
| 1060 Gdip.Graphics_DrawLine(cast(Gdip.Graphics)graphics, pen, runX, underlineY, runX + run.width, underlineY); | |
| 1061 Gdip.Pen_delete(pen); | |
| 1062 break; | |
| 1063 } | |
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1064 default: |
| 213 | 1065 } |
| 1066 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1067 } | |
| 1068 if (style.strikeout) { | |
| 1069 if (style.strikeoutColor !is null) { | |
| 1070 int fg = style.strikeoutColor.handle; | |
| 1071 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 1072 auto gdiColor = Gdip.Color_new(argb); | |
| 1073 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1074 Gdip.Color_delete(gdiColor); | |
| 1075 } | |
| 1076 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, strikeoutY, run.width, run.strikeoutThickness); | |
| 1077 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1078 } | |
| 1079 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeHalf); | |
| 1080 } else { | |
| 1081 uint colorRefUnderline = cast(uint)color; | |
| 1082 uint colorRefStrikeout = cast(uint)color; | |
| 1083 int /*long*/ brushUnderline = 0; | |
| 1084 int /*long*/ brushStrikeout = 0; | |
| 1085 RECT rect; | |
| 1086 if (style.underline) { | |
| 1087 if (style.underlineColor !is null) { | |
| 1088 colorRefUnderline = style.underlineColor.handle; | |
| 1089 } | |
| 1090 switch (style.underlineStyle) { | |
| 1091 case DWT.UNDERLINE_SQUIGGLE: | |
| 1092 case DWT.UNDERLINE_ERROR: { | |
| 1093 int squigglyThickness = 1; | |
| 1094 int squigglyHeight = 2 * squigglyThickness; | |
| 1095 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 1096 int squigglyX = runX; | |
| 1097 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 1098 squigglyX = x + line[i - 1].x; | |
| 1099 } | |
| 1100 int state = OS.SaveDC(graphics); | |
| 1101 if (clipRect !is null) { | |
| 1102 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1103 } else { | |
| 1104 OS.IntersectClipRect(graphics, runX, squigglyY, runX + run.width + 1, squigglyY + squigglyHeight + 1); | |
| 1105 } | |
| 1106 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1107 auto pen = OS.CreatePen(OS.PS_SOLID, squigglyThickness, colorRefUnderline); | |
| 1108 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1109 OS.Polyline(graphics, cast(POINT*)points.ptr, points.length / 2); | |
| 1110 int length_ = points.length; | |
| 1111 if (length_ >= 2 && squigglyThickness <= 1) { | |
| 1112 OS.SetPixel (graphics, points[length_ - 2], points[length_ - 1], colorRefUnderline); | |
| 1113 } | |
| 1114 OS.RestoreDC(graphics, state); | |
| 1115 OS.SelectObject(graphics, oldPen); | |
| 1116 OS.DeleteObject(pen); | |
| 1117 break; | |
| 1118 } | |
| 1119 case DWT.UNDERLINE_SINGLE: | |
| 1120 brushUnderline = cast(uint) OS.CreateSolidBrush(colorRefUnderline); | |
| 1121 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1122 if (clipRect !is null) { | |
| 1123 rect.left = Math.max(rect.left, clipRect.left); | |
| 1124 rect.right = Math.min(rect.right, clipRect.right); | |
| 1125 } | |
| 1126 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1127 break; | |
| 1128 case DWT.UNDERLINE_DOUBLE: | |
| 1129 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1130 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1131 if (clipRect !is null) { | |
| 1132 rect.left = Math.max(rect.left, clipRect.left); | |
| 1133 rect.right = Math.min(rect.right, clipRect.right); | |
| 1134 } | |
| 1135 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1136 OS.SetRect(&rect, runX, underlineY + run.underlineThickness * 2, runX + run.width, underlineY + run.underlineThickness * 3); | |
| 1137 if (clipRect !is null) { | |
| 1138 rect.left = Math.max(rect.left, clipRect.left); | |
| 1139 rect.right = Math.min(rect.right, clipRect.right); | |
| 1140 } | |
| 1141 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1142 break; | |
| 1143 case UNDERLINE_IME_THICK: | |
| 1144 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1145 OS.SetRect(&rect, runX, underlineY - run.underlineThickness, runX + run.width, underlineY + run.underlineThickness); | |
| 1146 if (clipRect !is null) { | |
| 1147 rect.left = Math.max(rect.left, clipRect.left); | |
| 1148 rect.right = Math.min(rect.right, clipRect.right); | |
| 1149 } | |
| 1150 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1151 break; | |
| 1152 case UNDERLINE_IME_DASH: | |
| 1153 case UNDERLINE_IME_DOT: { | |
| 1154 underlineY = lineBaseline + run.descent; | |
| 1155 int penStyle = style.underlineStyle is UNDERLINE_IME_DASH ? OS.PS_DASH : OS.PS_DOT; | |
| 1156 auto pen = OS.CreatePen(penStyle, 1, colorRefUnderline); | |
| 1157 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1158 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1159 if (clipRect !is null) { | |
| 1160 rect.left = Math.max(rect.left, clipRect.left); | |
| 1161 rect.right = Math.min(rect.right, clipRect.right); | |
| 1162 } | |
| 1163 OS.MoveToEx(graphics, rect.left, rect.top, null); | |
| 1164 OS.LineTo(graphics, rect.right, rect.top); | |
| 1165 OS.SelectObject(graphics, oldPen); | |
| 1166 OS.DeleteObject(pen); | |
| 1167 break; | |
| 1168 } | |
|
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1169 default: |
| 213 | 1170 } |
| 1171 } | |
| 1172 if (style.strikeout) { | |
| 1173 if (style.strikeoutColor !is null) { | |
| 1174 colorRefStrikeout = style.strikeoutColor.handle; | |
| 1175 } | |
| 1176 if (brushUnderline !is 0 && colorRefStrikeout is colorRefUnderline) { | |
| 1177 brushStrikeout = brushUnderline; | |
| 1178 } else { | |
| 1179 brushStrikeout = cast(int) OS.CreateSolidBrush(colorRefStrikeout); | |
| 1180 } | |
| 1181 OS.SetRect(&rect, runX, strikeoutY, runX + run.width, strikeoutY + run.strikeoutThickness); | |
| 1182 if (clipRect !is null) { | |
| 1183 rect.left = Math.max(rect.left, clipRect.left); | |
| 1184 rect.right = Math.min(rect.right, clipRect.right); | |
| 1185 } | |
| 1186 OS.FillRect(graphics, &rect, cast(void*)brushStrikeout); | |
| 1187 } | |
| 1188 if (brushUnderline !is 0) OS.DeleteObject(cast(void*)brushUnderline); | |
| 1189 if (brushStrikeout !is 0 && brushStrikeout !is brushUnderline) OS.DeleteObject(cast(void*)brushStrikeout); | |
| 1190 } | |
| 1191 } | |
| 1192 | |
| 1193 RECT* drawBorder(bool advance, void* graphics, int x, int y, int lineHeight, void* color, void* selectionColor, bool fullSelection, RECT* clipRect, RECT* rect, int alpha, StyleItem[] line, int index, int selectionStart, int selectionEnd) { | |
| 1194 StyleItem run = line[index]; | |
| 1195 TextStyle style = run.style; | |
| 1196 if (style is null) return null; | |
| 1197 if (style.borderStyle is DWT.NONE) return null; | |
| 1198 if (rect !is null) { | |
| 1199 if (clipRect is null) { | |
| 1200 clipRect = new RECT (); | |
| 1201 OS.SetRect(clipRect, -1, rect.top, -1, rect.bottom); | |
| 1202 } | |
| 1203 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1204 if (run.start <= selectionStart && selectionStart <= run.start + run.length) { | |
| 1205 if (run.analysis.fRTL ^ isRTL) { | |
| 1206 clipRect.right = rect.left; | |
| 1207 } else { | |
| 1208 clipRect.left = rect.left; | |
| 1209 } | |
| 1210 } | |
| 1211 if (run.start <= selectionEnd && selectionEnd <= run.start + run.length) { | |
| 1212 if (run.analysis.fRTL ^ isRTL) { | |
| 1213 clipRect.left = rect.right; | |
| 1214 } else { | |
| 1215 clipRect.right = rect.right; | |
| 1216 } | |
| 1217 } | |
| 1218 } | |
| 1219 if (index + 1 >= line.length || !style.isAdherentBorder(line[index + 1].style)) { | |
| 1220 int left = run.x; | |
| 1221 for (int i = index; i > 0 && style.isAdherentBorder(line[i - 1].style); i--) { | |
| 1222 left = line[i - 1].x; | |
| 1223 } | |
| 1224 if (advance) { | |
| 1225 auto brush = color; | |
| 1226 int customColor = -1; | |
| 1227 if (style.borderColor !is null) { | |
| 1228 customColor = style.borderColor.handle; | |
| 1229 } else { | |
| 1230 if (style.foreground !is null) { | |
| 1231 customColor = style.foreground.handle; | |
| 1232 } | |
| 1233 if (fullSelection && clipRect is null) { | |
| 1234 customColor = -1; | |
| 1235 brush = selectionColor; | |
| 1236 } | |
| 1237 } | |
| 1238 if (customColor !is -1) { | |
| 1239 int argb = ((alpha & 0xFF) << 24) | ((customColor >> 16) & 0xFF) | (customColor & 0xFF00) | ((customColor & 0xFF) << 16); | |
| 1240 auto gdiColor = Gdip.Color_new(argb); | |
| 1241 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1242 Gdip.Color_delete(gdiColor); | |
| 1243 } | |
| 1244 int lineWidth = 1; | |
| 1245 int lineStyle = Gdip.DashStyleSolid; | |
| 1246 switch (style.borderStyle) { | |
| 1247 case DWT.BORDER_SOLID: break; | |
| 1248 case DWT.BORDER_DASH: lineStyle = Gdip.DashStyleDash; break; | |
| 1249 case DWT.BORDER_DOT: lineStyle = Gdip.DashStyleDot; break; | |
|
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1250 default: |
| 213 | 1251 } |
| 1252 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, lineWidth); | |
| 1253 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1254 float gdipXOffset = 0.5f, gdipYOffset = 0.5f; | |
| 1255 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, gdipXOffset, gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1256 if (style.borderColor is null && clipRect !is null) { | |
| 1257 int gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1258 if (clipRect.left is -1) clipRect.left = 0; | |
| 1259 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1260 Gdip.Rect gdipRect; | |
| 1261 gdipRect.X = clipRect.left; | |
| 1262 gdipRect.Y = clipRect.top; | |
| 1263 gdipRect.Width = clipRect.right - clipRect.left; | |
| 1264 gdipRect.Height = clipRect.bottom - clipRect.top; | |
| 1265 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeExclude); | |
| 1266 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1267 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1268 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1269 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1270 auto selPen = Gdip.Pen_new(cast(Gdip.Brush)selectionColor, lineWidth); | |
| 1271 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1272 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, selPen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1273 Gdip.Pen_delete(selPen); | |
| 1274 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1275 } else { | |
| 1276 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1277 } | |
| 1278 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, -gdipXOffset, -gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1279 Gdip.Pen_delete(pen); | |
| 1280 if (customColor !is -1) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1281 } else { | |
| 1282 if (style.borderColor !is null) { | |
| 1283 color = cast(void*)style.borderColor.handle; | |
| 1284 } else { | |
| 1285 if (style.foreground !is null) { | |
| 1286 color = cast(void*)style.foreground.handle; | |
| 1287 } | |
| 1288 if (fullSelection && clipRect is null) { | |
| 1289 color = selectionColor; | |
| 1290 } | |
| 1291 } | |
| 1292 int lineWidth = 1; | |
| 1293 int lineStyle = OS.PS_SOLID; | |
| 1294 switch (style.borderStyle) { | |
| 1295 case DWT.BORDER_SOLID: break; | |
| 1296 case DWT.BORDER_DASH: lineStyle = OS.PS_DASH; break; | |
| 1297 case DWT.BORDER_DOT: lineStyle = OS.PS_DOT; break; | |
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1298 default: |
| 213 | 1299 } |
| 1300 LOGBRUSH logBrush; | |
| 1301 logBrush.lbStyle = OS.BS_SOLID; | |
| 1302 logBrush.lbColor = cast(uint)color; | |
| 1303 auto newPen = OS.ExtCreatePen(lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1304 auto oldPen = OS.SelectObject(graphics, newPen); | |
| 1305 auto oldBrush = OS.SelectObject(graphics, OS.GetStockObject(OS.NULL_BRUSH)); | |
| 1306 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1307 if (style.borderColor is null && clipRect !is null && color !is selectionColor) { | |
| 1308 int state = OS.SaveDC(graphics); | |
| 1309 if (clipRect.left is -1) clipRect.left = 0; | |
| 1310 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1311 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1312 logBrush.lbColor = cast(uint)selectionColor; | |
| 1313 auto selPen = OS.ExtCreatePen (lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1314 OS.SelectObject(graphics, selPen); | |
| 1315 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1316 OS.RestoreDC(graphics, state); | |
| 1317 OS.SelectObject(graphics, newPen); | |
| 1318 OS.DeleteObject(selPen); | |
| 1319 } | |
| 1320 OS.SelectObject(graphics, oldBrush); | |
| 1321 OS.SelectObject(graphics, oldPen); | |
| 1322 OS.DeleteObject(newPen); | |
| 1323 } | |
| 1324 return null; | |
| 1325 } | |
| 1326 return clipRect; | |
| 1327 } | |
| 1328 | |
| 1329 int[] computePolyline(int left, int top, int right, int bottom) { | |
| 1330 int height = bottom - top; // can be any number | |
| 1331 int width = 2 * height; // must be even | |
| 1332 int peaks = Compatibility.ceil(right - left, width); | |
| 1333 if (peaks is 0 && right - left > 2) { | |
| 1334 peaks = 1; | |
| 1335 } | |
| 1336 int length_ = ((2 * peaks) + 1) * 2; | |
| 1337 if (length_ < 0) return new int[0]; | |
| 1338 | |
| 1339 int[] coordinates = new int[length_]; | |
| 1340 for (int i = 0; i < peaks; i++) { | |
| 1341 int index = 4 * i; | |
| 1342 coordinates[index] = left + (width * i); | |
| 1343 coordinates[index+1] = bottom; | |
| 1344 coordinates[index+2] = coordinates[index] + width / 2; | |
| 1345 coordinates[index+3] = top; | |
| 1346 } | |
| 1347 coordinates[length_-2] = left + (width * peaks); | |
| 1348 coordinates[length_-1] = bottom; | |
| 1349 return coordinates; | |
| 1350 } | |
| 1351 | |
| 29 | 1352 void freeRuns () { |
| 1353 if (allRuns is null) return; | |
| 1354 for (int i=0; i<allRuns.length; i++) { | |
| 1355 StyleItem run = allRuns[i]; | |
| 1356 run.free(); | |
| 1357 } | |
| 1358 allRuns = null; | |
| 1359 runs = null; | |
| 1360 segmentsText = null; | |
|
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1361 segmentsWText = null; |
| 29 | 1362 } |
| 1363 | |
| 1364 /** | |
| 1365 * Returns the receiver's horizontal text alignment, which will be one | |
| 1366 * of <code>DWT.LEFT</code>, <code>DWT.CENTER</code> or | |
| 1367 * <code>DWT.RIGHT</code>. | |
| 1368 * | |
| 1369 * @return the alignment used to positioned text horizontally | |
| 1370 * | |
| 1371 * @exception DWTException <ul> | |
| 1372 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1373 * </ul> | |
| 1374 */ | |
| 1375 public int getAlignment () { | |
| 1376 checkLayout(); | |
| 1377 return alignment; | |
| 1378 } | |
| 1379 | |
| 1380 /** | |
| 1381 * Returns the ascent of the receiver. | |
| 1382 * | |
| 1383 * @return the ascent | |
| 1384 * | |
| 1385 * @exception DWTException <ul> | |
| 1386 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1387 * </ul> | |
| 1388 * | |
| 1389 * @see #getDescent() | |
| 1390 * @see #setDescent(int) | |
| 1391 * @see #setAscent(int) | |
| 1392 * @see #getLineMetrics(int) | |
| 1393 */ | |
| 1394 public int getAscent () { | |
| 1395 checkLayout(); | |
| 1396 return ascent; | |
| 1397 } | |
| 1398 | |
| 1399 /** | |
| 213 | 1400 * Returns the bounds of the receiver. The width returned is either the |
| 1401 * width of the longest line or the width set using {@link TextLayout#setWidth(int)}. | |
| 1402 * To obtain the text bounds of a line use {@link TextLayout#getLineBounds(int)}. | |
| 29 | 1403 * |
| 1404 * @return the bounds of the receiver | |
| 1405 * | |
| 1406 * @exception DWTException <ul> | |
| 1407 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1408 * </ul> | |
| 213 | 1409 * |
| 1410 * @see #setWidth(int) | |
| 1411 * @see #getLineBounds(int) | |
| 29 | 1412 */ |
| 1413 public Rectangle getBounds () { | |
| 1414 checkLayout(); | |
| 1415 computeRuns(null); | |
| 1416 int width = 0; | |
| 1417 if (wrapWidth !is -1) { | |
| 1418 width = wrapWidth; | |
| 1419 } else { | |
| 1420 for (int line=0; line<runs.length; line++) { | |
| 1421 width = Math.max(width, lineWidth[line] + getLineIndent(line)); | |
| 1422 } | |
| 1423 } | |
| 1424 return new Rectangle (0, 0, width, lineY[lineY.length - 1]); | |
| 1425 } | |
| 1426 | |
| 1427 /** | |
| 1428 * Returns the bounds for the specified range of characters. The | |
| 1429 * bounds is the smallest rectangle that encompasses all characters | |
| 1430 * in the range. The start and end offsets are inclusive and will be | |
| 1431 * clamped if out of range. | |
| 1432 * | |
| 1433 * @param start the start offset | |
| 1434 * @param end the end offset | |
| 1435 * @return the bounds of the character range | |
| 1436 * | |
| 1437 * @exception DWTException <ul> | |
| 1438 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1439 * </ul> | |
| 1440 */ | |
| 1441 public Rectangle getBounds (int start, int end) { | |
| 1442 checkLayout(); | |
| 1443 computeRuns(null); | |
| 227 | 1444 int length = text.length; |
| 1445 if (length is 0) return new Rectangle(0, 0, 0, 0); | |
| 29 | 1446 if (start > end) return new Rectangle(0, 0, 0, 0); |
| 227 | 1447 start = Math.min(Math.max(0, start), length - 1); |
| 1448 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 1449 start = translateOffset(start); |
| 1450 end = translateOffset(end); | |
| 1451 int left = 0x7fffffff, right = 0; | |
| 1452 int top = 0x7fffffff, bottom = 0; | |
| 1453 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1454 for (int i = 0; i < allRuns.length - 1; i++) { | |
| 1455 StyleItem run = allRuns[i]; | |
| 1456 int runEnd = run.start + run.length; | |
| 1457 if (runEnd <= start) continue; | |
| 1458 if (run.start > end) break; | |
| 1459 int runLead = run.x; | |
| 1460 int runTrail = run.x + run.width; | |
| 1461 if (run.start <= start && start < runEnd) { | |
| 1462 int cx = 0; | |
| 1463 if (run.style !is null && run.style.metrics !is null) { | |
| 1464 GlyphMetrics metrics = run.style.metrics; | |
|
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1465 cx = metrics.width * (index8to16[start] - index8to16[run.start]); |
| 29 | 1466 } else if (!run.tab) { |
| 30 | 1467 int piX; |
| 1468 int* advances = run.justify !is null ? run.justify : run.advances; | |
|
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1469 int wlength = index8to16[ run.start+run.length] - index8to16[run.start]; |
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1470 OS.ScriptCPtoX(index8to16[start] - index8to16[run.start], false, wlength, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 30 | 1471 cx = isRTL ? run.width - piX : piX; |
| 29 | 1472 } |
| 1473 if (run.analysis.fRTL ^ isRTL) { | |
| 1474 runTrail = run.x + cx; | |
| 1475 } else { | |
| 1476 runLead = run.x + cx; | |
| 1477 } | |
| 1478 } | |
| 1479 if (run.start <= end && end < runEnd) { | |
| 1480 int cx = run.width; | |
| 1481 if (run.style !is null && run.style.metrics !is null) { | |
| 1482 GlyphMetrics metrics = run.style.metrics; | |
|
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1483 cx = metrics.width * (index8to16[end] - index8to16[run.start] + 1); |
| 29 | 1484 } else if (!run.tab) { |
| 30 | 1485 int piX; |
| 1486 int* advances = run.justify !is null ? run.justify : run.advances; | |
|
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1487 int wlength = index8to16[ run.start+run.length] - index8to16[run.start]; |
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1488 OS.ScriptCPtoX(index8to16[end] - index8to16[run.start], true, wlength, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 30 | 1489 cx = isRTL ? run.width - piX : piX; |
| 29 | 1490 } |
| 1491 if (run.analysis.fRTL ^ isRTL) { | |
| 1492 runLead = run.x + cx; | |
| 1493 } else { | |
| 1494 runTrail = run.x + cx; | |
| 1495 } | |
| 1496 } | |
| 1497 int lineIndex = 0; | |
| 1498 while (lineIndex < runs.length && lineOffset[lineIndex + 1] <= run.start) { | |
| 1499 lineIndex++; | |
| 1500 } | |
| 1501 left = Math.min(left, runLead); | |
| 1502 right = Math.max(right, runTrail); | |
| 1503 top = Math.min(top, lineY[lineIndex]); | |
| 1504 bottom = Math.max(bottom, lineY[lineIndex + 1] - lineSpacing); | |
| 1505 } | |
| 1506 return new Rectangle(left, top, right - left, bottom - top); | |
| 1507 } | |
| 1508 | |
| 1509 /** | |
| 1510 * Returns the descent of the receiver. | |
| 1511 * | |
| 1512 * @return the descent | |
| 1513 * | |
| 1514 * @exception DWTException <ul> | |
| 1515 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1516 * </ul> | |
| 1517 * | |
| 1518 * @see #getAscent() | |
| 1519 * @see #setAscent(int) | |
| 1520 * @see #setDescent(int) | |
| 1521 * @see #getLineMetrics(int) | |
| 1522 */ | |
| 1523 public int getDescent () { | |
| 1524 checkLayout(); | |
| 1525 return descent; | |
| 1526 } | |
| 1527 | |
| 1528 /** | |
| 1529 * Returns the default font currently being used by the receiver | |
| 1530 * to draw and measure text. | |
| 1531 * | |
| 1532 * @return the receiver's font | |
| 1533 * | |
| 1534 * @exception DWTException <ul> | |
| 1535 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1536 * </ul> | |
| 1537 */ | |
| 1538 public Font getFont () { | |
| 1539 checkLayout(); | |
| 1540 return font; | |
| 1541 } | |
| 1542 | |
| 1543 /** | |
| 1544 * Returns the receiver's indent. | |
| 1545 * | |
| 1546 * @return the receiver's indent | |
| 1547 * | |
| 1548 * @exception DWTException <ul> | |
| 1549 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1550 * </ul> | |
| 1551 * | |
| 1552 * @since 3.2 | |
| 1553 */ | |
| 1554 public int getIndent () { | |
| 1555 checkLayout(); | |
| 1556 return indent; | |
| 1557 } | |
| 1558 | |
| 1559 /** | |
| 1560 * Returns the receiver's justification. | |
| 1561 * | |
| 1562 * @return the receiver's justification | |
| 1563 * | |
| 1564 * @exception DWTException <ul> | |
| 1565 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1566 * </ul> | |
| 1567 * | |
| 1568 * @since 3.2 | |
| 1569 */ | |
| 1570 public bool getJustify () { | |
| 1571 checkLayout(); | |
| 1572 return justify; | |
| 1573 } | |
| 1574 | |
| 30 | 1575 HFONT getItemFont (StyleItem item) { |
| 1576 if (item.fallbackFont !is null) return cast(HFONT) item.fallbackFont; | |
| 29 | 1577 if (item.style !is null && item.style.font !is null) { |
| 1578 return item.style.font.handle; | |
| 1579 } | |
| 1580 if (this.font !is null) { | |
| 1581 return this.font.handle; | |
| 1582 } | |
| 213 | 1583 return device.systemFont.handle; |
| 29 | 1584 } |
| 1585 | |
| 1586 /** | |
| 1587 * Returns the embedding level for the specified character offset. The | |
| 1588 * embedding level is usually used to determine the directionality of a | |
| 1589 * character in bidirectional text. | |
| 1590 * | |
| 1591 * @param offset the character offset | |
| 1592 * @return the embedding level | |
| 1593 * | |
| 1594 * @exception IllegalArgumentException <ul> | |
| 1595 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1596 * </ul> | |
| 1597 * @exception DWTException <ul> | |
| 1598 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1599 */ | |
| 1600 public int getLevel (int offset) { | |
| 1601 checkLayout(); | |
| 1602 computeRuns(null); | |
| 227 | 1603 int length = text.length; |
| 1604 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1605 offset = translateOffset(offset); |
| 1606 for (int i=1; i<allRuns.length; i++) { | |
| 1607 if (allRuns[i].start > offset) { | |
| 1608 return allRuns[i - 1].analysis.s.uBidiLevel; | |
| 1609 } | |
| 1610 } | |
| 1611 return (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? 1 : 0; | |
| 1612 } | |
| 1613 | |
| 1614 /** | |
| 1615 * Returns the bounds of the line for the specified line index. | |
| 1616 * | |
| 1617 * @param lineIndex the line index | |
| 1618 * @return the line bounds | |
| 1619 * | |
| 1620 * @exception IllegalArgumentException <ul> | |
| 1621 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1622 * </ul> | |
| 1623 * @exception DWTException <ul> | |
| 1624 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1625 * </ul> | |
| 1626 */ | |
| 1627 public Rectangle getLineBounds(int lineIndex) { | |
| 1628 checkLayout(); | |
| 1629 computeRuns(null); | |
| 1630 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1631 int x = getLineIndent(lineIndex); | |
| 1632 int y = lineY[lineIndex]; | |
| 1633 int width = lineWidth[lineIndex]; | |
| 1634 int height = lineY[lineIndex + 1] - y - lineSpacing; | |
| 1635 return new Rectangle (x, y, width, height); | |
| 1636 } | |
| 1637 | |
| 1638 /** | |
| 1639 * Returns the receiver's line count. This includes lines caused | |
| 1640 * by wrapping. | |
| 1641 * | |
| 1642 * @return the line count | |
| 1643 * | |
| 1644 * @exception DWTException <ul> | |
| 1645 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1646 * </ul> | |
| 1647 */ | |
| 1648 public int getLineCount () { | |
| 1649 checkLayout(); | |
| 1650 computeRuns(null); | |
| 1651 return runs.length; | |
| 1652 } | |
| 1653 | |
| 1654 int getLineIndent (int lineIndex) { | |
| 1655 int lineIndent = 0; | |
| 1656 if (lineIndex is 0) { | |
| 1657 lineIndent = indent; | |
| 1658 } else { | |
| 1659 StyleItem[] previousLine = runs[lineIndex - 1]; | |
| 1660 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 1661 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 1662 lineIndent = indent; | |
| 1663 } | |
| 1664 } | |
| 1665 if (wrapWidth !is -1) { | |
| 1666 bool partialLine = true; | |
| 1667 if (justify) { | |
| 1668 StyleItem[] lineRun = runs[lineIndex]; | |
| 1669 if (lineRun[lineRun.length - 1].softBreak) { | |
| 1670 partialLine = false; | |
| 1671 } | |
| 1672 } | |
| 1673 if (partialLine) { | |
| 1674 int lineWidth = this.lineWidth[lineIndex] + lineIndent; | |
| 1675 switch (alignment) { | |
| 1676 case DWT.CENTER: lineIndent += (wrapWidth - lineWidth) / 2; break; | |
| 1677 case DWT.RIGHT: lineIndent += wrapWidth - lineWidth; break; | |
| 81 | 1678 default: |
| 29 | 1679 } |
| 1680 } | |
| 1681 } | |
| 1682 return lineIndent; | |
| 1683 } | |
| 1684 | |
| 1685 /** | |
| 1686 * Returns the index of the line that contains the specified | |
| 1687 * character offset. | |
| 1688 * | |
| 1689 * @param offset the character offset | |
| 1690 * @return the line index | |
| 1691 * | |
| 1692 * @exception IllegalArgumentException <ul> | |
| 1693 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1694 * </ul> | |
| 1695 * @exception DWTException <ul> | |
| 1696 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1697 * </ul> | |
| 1698 */ | |
| 1699 public int getLineIndex (int offset) { | |
| 1700 checkLayout(); | |
| 1701 computeRuns(null); | |
| 227 | 1702 int length = text.length; |
| 1703 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1704 offset = translateOffset(offset); |
| 1705 for (int line=0; line<runs.length; line++) { | |
| 1706 if (lineOffset[line + 1] > offset) { | |
| 1707 return line; | |
| 1708 } | |
| 1709 } | |
| 1710 return runs.length - 1; | |
| 1711 } | |
| 1712 | |
| 1713 /** | |
| 1714 * Returns the font metrics for the specified line index. | |
| 1715 * | |
| 1716 * @param lineIndex the line index | |
| 1717 * @return the font metrics | |
| 1718 * | |
| 1719 * @exception IllegalArgumentException <ul> | |
| 1720 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1721 * </ul> | |
| 1722 * @exception DWTException <ul> | |
| 1723 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1724 * </ul> | |
| 1725 */ | |
| 1726 public FontMetrics getLineMetrics (int lineIndex) { | |
| 1727 checkLayout(); | |
| 1728 computeRuns(null); | |
| 1729 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 30 | 1730 auto hDC = device.internal_new_GC(null); |
| 1731 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 1732 TEXTMETRIC lptm; |
| 213 | 1733 OS.SelectObject(srcHdc, font !is null ? font.handle : device.systemFont.handle); |
| 29 | 1734 OS.GetTextMetrics(srcHdc, &lptm); |
| 1735 OS.DeleteDC(srcHdc); | |
| 1736 device.internal_dispose_GC(hDC, null); | |
| 1737 | |
| 1738 int ascent = Math.max(lptm.tmAscent, this.ascent); | |
| 1739 int descent = Math.max(lptm.tmDescent, this.descent); | |
| 1740 int leading = lptm.tmInternalLeading; | |
| 30 | 1741 if (text.length !is 0) { |
| 29 | 1742 StyleItem[] lineRuns = runs[lineIndex]; |
| 1743 for (int i = 0; i<lineRuns.length; i++) { | |
| 1744 StyleItem run = lineRuns[i]; | |
| 1745 if (run.ascent > ascent) { | |
| 1746 ascent = run.ascent; | |
| 1747 leading = run.leading; | |
| 1748 } | |
| 1749 descent = Math.max(descent, run.descent); | |
| 1750 } | |
| 1751 } | |
| 1752 lptm.tmAscent = ascent; | |
| 1753 lptm.tmDescent = descent; | |
| 1754 lptm.tmHeight = ascent + descent; | |
| 1755 lptm.tmInternalLeading = leading; | |
| 1756 lptm.tmAveCharWidth = 0; | |
| 30 | 1757 return FontMetrics.win32_new(&lptm); |
| 29 | 1758 } |
| 1759 | |
| 1760 /** | |
| 1761 * Returns the line offsets. Each value in the array is the | |
| 1762 * offset for the first character in a line except for the last | |
| 1763 * value, which contains the length of the text. | |
| 1764 * | |
| 1765 * @return the line offsets | |
| 1766 * | |
| 1767 * @exception DWTException <ul> | |
| 1768 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1769 * </ul> | |
| 1770 */ | |
| 1771 public int[] getLineOffsets () { | |
| 1772 checkLayout(); | |
| 1773 computeRuns(null); | |
| 1774 int[] offsets = new int[lineOffset.length]; | |
| 1775 for (int i = 0; i < offsets.length; i++) { | |
| 1776 offsets[i] = untranslateOffset(lineOffset[i]); | |
| 1777 } | |
| 1778 return offsets; | |
| 1779 } | |
| 1780 | |
| 1781 /** | |
| 1782 * Returns the location for the specified character offset. The | |
| 1783 * <code>trailing</code> argument indicates whether the offset | |
| 1784 * corresponds to the leading or trailing edge of the cluster. | |
| 1785 * | |
| 1786 * @param offset the character offset | |
| 1787 * @param trailing the trailing flag | |
| 1788 * @return the location of the character offset | |
| 1789 * | |
| 1790 * @exception DWTException <ul> | |
| 1791 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1792 * </ul> | |
| 1793 * | |
| 1794 * @see #getOffset(Point, int[]) | |
| 1795 * @see #getOffset(int, int, int[]) | |
| 1796 */ | |
| 1797 public Point getLocation (int offset, bool trailing) { | |
| 1798 checkLayout(); | |
| 1799 computeRuns(null); | |
| 227 | 1800 int length = text.length; |
| 1801 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1802 length = segmentsText.length; | |
| 29 | 1803 offset = translateOffset(offset); |
| 1804 int line; | |
| 1805 for (line=0; line<runs.length; line++) { | |
| 1806 if (lineOffset[line + 1] > offset) break; | |
| 1807 } | |
| 1808 line = Math.min(line, runs.length - 1); | |
| 227 | 1809 if (offset is length) { |
| 213 | 1810 return new Point(getLineIndent(line) + lineWidth[line], lineY[line]); |
| 1811 } | |
| 1812 int low = -1; | |
| 1813 int high = allRuns.length; | |
| 1814 while (high - low > 1) { | |
| 1815 int index = ((high + low) / 2); | |
| 1816 StyleItem run = allRuns[index]; | |
| 1817 if (run.start > offset) { | |
| 1818 high = index; | |
| 1819 } else if (run.start + run.length <= offset) { | |
| 1820 low = index; | |
| 1821 } else { | |
| 1822 int width; | |
| 1823 if (run.style !is null && run.style.metrics !is null) { | |
| 1824 GlyphMetrics metrics = run.style.metrics; | |
| 1825 width = metrics.width * (offset - run.start + (trailing ? 1 : 0)); | |
| 1826 } else if (run.tab) { | |
| 227 | 1827 width = (trailing || (offset is length)) ? run.width : 0; |
| 213 | 1828 } else { |
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1829 int runOffset = index8to16[offset] - index8to16[run.start]; |
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1830 int cChars = index8to16[run.start+run.length] - index8to16[run.start]; // make it wchar |
| 213 | 1831 int gGlyphs = run.glyphCount; |
| 1832 int piX; | |
| 1833 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1834 OS.ScriptCPtoX(runOffset, trailing, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1835 width = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 1836 } |
| 213 | 1837 return new Point(run.x + width, lineY[line]); |
| 29 | 1838 } |
| 1839 } | |
| 213 | 1840 return new Point(0, 0); |
| 29 | 1841 } |
| 1842 | |
| 1843 /** | |
| 1844 * Returns the next offset for the specified offset and movement | |
| 1845 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 1846 * <code>DWT.MOVEMENT_CLUSTER</code>, <code>DWT.MOVEMENT_WORD</code>, | |
| 1847 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 1848 * | |
| 1849 * @param offset the start offset | |
| 1850 * @param movement the movement type | |
| 1851 * @return the next offset | |
| 1852 * | |
| 1853 * @exception IllegalArgumentException <ul> | |
| 1854 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 1855 * </ul> | |
| 1856 * @exception DWTException <ul> | |
| 1857 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1858 * </ul> | |
| 1859 * | |
| 1860 * @see #getPreviousOffset(int, int) | |
| 1861 */ | |
| 1862 public int getNextOffset (int offset, int movement) { | |
| 1863 checkLayout(); | |
| 1864 return _getOffset (offset, movement, true); | |
| 1865 } | |
| 1866 | |
| 1867 int _getOffset(int offset, int movement, bool forward) { | |
| 1868 computeRuns(null); | |
| 227 | 1869 int length = text.length; |
| 1870 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1871 if (forward && offset is length) return length; | |
| 29 | 1872 if (!forward && offset is 0) return 0; |
| 1873 int step = forward ? 1 : -1; | |
| 1874 if ((movement & DWT.MOVEMENT_CHAR) !is 0) return offset + step; | |
| 227 | 1875 length = segmentsText.length; |
| 29 | 1876 offset = translateOffset(offset); |
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1877 SCRIPT_LOGATTR* logAttr; |
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1878 SCRIPT_PROPERTIES* properties; |
| 29 | 1879 int i = forward ? 0 : allRuns.length - 1; |
| 1880 offset = validadeOffset(offset, step); | |
| 1881 do { | |
| 1882 StyleItem run = allRuns[i]; | |
| 1883 if (run.start <= offset && offset < run.start + run.length) { | |
| 1884 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1885 if (run.tab) return untranslateOffset(run.start); | |
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1886 properties = device.scripts[run.analysis.eScript]; |
| 29 | 1887 bool isComplex = properties.fNeedsCaretInfo || properties.fNeedsWordBreaking; |
| 1888 if (isComplex) breakRun(run); | |
| 1889 while (run.start <= offset && offset < run.start + run.length) { | |
| 1890 if (isComplex) { | |
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1891 logAttr = run.psla + (index8to16[offset] - index8to16[run.start]); |
| 29 | 1892 } |
| 1893 switch (movement) { | |
| 1894 case DWT.MOVEMENT_CLUSTER: { | |
| 1895 if (properties.fNeedsCaretInfo) { | |
| 1896 if (!logAttr.fInvalid && logAttr.fCharStop) return untranslateOffset(offset); | |
| 1897 } else { | |
| 1898 return untranslateOffset(offset); | |
| 1899 } | |
| 1900 break; | |
| 1901 } | |
| 1902 case DWT.MOVEMENT_WORD_START: | |
| 1903 case DWT.MOVEMENT_WORD: { | |
| 1904 if (properties.fNeedsWordBreaking) { | |
| 1905 if (!logAttr.fInvalid && logAttr.fWordStop) return untranslateOffset(offset); | |
| 1906 } else { | |
| 1907 if (offset > 0) { | |
| 1908 bool letterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1909 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1910 if (letterOrDigit !is previousLetterOrDigit || !letterOrDigit) { | |
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1911 if (!Compatibility.isWhitespace(segmentsText[offset..$].firstCodePoint())) { |
| 29 | 1912 return untranslateOffset(offset); |
| 1913 } | |
| 1914 } | |
| 1915 } | |
| 1916 } | |
| 1917 break; | |
| 1918 } | |
| 1919 case DWT.MOVEMENT_WORD_END: { | |
| 1920 if (offset > 0) { | |
| 1921 bool isLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
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1922 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText[offset - 1.. $].firstCodePoint()); |
| 29 | 1923 if (!isLetterOrDigit && previousLetterOrDigit) { |
| 1924 return untranslateOffset(offset); | |
| 1925 } | |
| 1926 } | |
| 1927 break; | |
| 1928 } | |
| 81 | 1929 default: |
| 29 | 1930 } |
| 1931 offset = validadeOffset(offset, step); | |
| 1932 } | |
| 1933 } | |
| 1934 i += step; | |
| 227 | 1935 } while (0 <= i && i < allRuns.length - 1 && 0 <= offset && offset < length); |
| 30 | 1936 return forward ? text.length : 0; |
| 29 | 1937 } |
| 1938 | |
| 1939 /** | |
| 1940 * Returns the character offset for the specified point. | |
| 1941 * For a typical character, the trailing argument will be filled in to | |
| 1942 * indicate whether the point is closer to the leading edge (0) or | |
| 1943 * the trailing edge (1). When the point is over a cluster composed | |
| 1944 * of multiple characters, the trailing argument will be filled with the | |
| 1945 * position of the character in the cluster that is closest to | |
| 1946 * the point. | |
| 1947 * | |
| 1948 * @param point the point | |
| 1949 * @param trailing the trailing buffer | |
| 1950 * @return the character offset | |
| 1951 * | |
| 1952 * @exception IllegalArgumentException <ul> | |
| 1953 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1954 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> | |
| 1955 * </ul> | |
| 1956 * @exception DWTException <ul> | |
| 1957 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1958 * </ul> | |
| 1959 * | |
| 1960 * @see #getLocation(int, bool) | |
| 1961 */ | |
| 1962 public int getOffset (Point point, int[] trailing) { | |
| 1963 checkLayout(); | |
| 1964 if (point is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1965 return getOffset (point.x, point.y, trailing) ; | |
| 1966 } | |
| 1967 | |
| 1968 /** | |
| 1969 * Returns the character offset for the specified point. | |
| 1970 * For a typical character, the trailing argument will be filled in to | |
| 1971 * indicate whether the point is closer to the leading edge (0) or | |
| 1972 * the trailing edge (1). When the point is over a cluster composed | |
| 1973 * of multiple characters, the trailing argument will be filled with the | |
| 1974 * position of the character in the cluster that is closest to | |
| 1975 * the point. | |
| 1976 * | |
| 1977 * @param x the x coordinate of the point | |
| 1978 * @param y the y coordinate of the point | |
| 1979 * @param trailing the trailing buffer | |
| 1980 * @return the character offset | |
| 1981 * | |
| 1982 * @exception IllegalArgumentException <ul> | |
| 1983 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1984 * </ul> | |
| 1985 * @exception DWTException <ul> | |
| 1986 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1987 * </ul> | |
| 1988 * | |
| 1989 * @see #getLocation(int, bool) | |
| 1990 */ | |
| 1991 public int getOffset (int x, int y, int[] trailing) { | |
| 1992 checkLayout(); | |
| 1993 computeRuns(null); | |
| 1994 if (trailing !is null && trailing.length < 1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
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1995 |
| 29 | 1996 int line; |
| 1997 int lineCount = runs.length; | |
| 1998 for (line=0; line<lineCount; line++) { | |
| 1999 if (lineY[line + 1] > y) break; | |
| 2000 } | |
| 2001 line = Math.min(line, runs.length - 1); | |
| 2002 StyleItem[] lineRuns = runs[line]; | |
| 213 | 2003 int lineIndent = getLineIndent(line); |
| 2004 if (x >= lineIndent + lineWidth[line]) x = lineIndent + lineWidth[line] - 1; | |
| 2005 if (x < lineIndent) x = lineIndent; | |
| 2006 int low = -1; | |
| 2007 int high = lineRuns.length; | |
| 2008 while (high - low > 1) { | |
| 2009 int index = ((high + low) / 2); | |
| 2010 StyleItem run = lineRuns[index]; | |
| 2011 if (run.x > x) { | |
| 2012 high = index; | |
| 2013 } else if (run.x + run.width <= x) { | |
| 2014 low = index; | |
| 2015 } else { | |
| 2016 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 2017 int xRun = x - run.x; | |
| 29 | 2018 if (run.style !is null && run.style.metrics !is null) { |
| 2019 GlyphMetrics metrics = run.style.metrics; | |
| 2020 if (metrics.width > 0) { | |
| 2021 if (trailing !is null) { | |
| 2022 trailing[0] = (xRun % metrics.width < metrics.width / 2) ? 0 : 1; | |
| 2023 } | |
| 2024 return untranslateOffset(run.start + xRun / metrics.width); | |
| 2025 } | |
| 2026 } | |
| 2027 if (run.tab) { | |
| 213 | 2028 if (trailing !is null) trailing[0] = x < (run.x + run.width / 2) ? 0 : 1; |
| 29 | 2029 return untranslateOffset(run.start); |
| 2030 } | |
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2031 int cChars = index8to16[run.start+run.length] - index8to16[run.start]; // make it wchar |
| 29 | 2032 int cGlyphs = run.glyphCount; |
| 30 | 2033 int piCP; |
| 2034 int piTrailing; | |
| 29 | 2035 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { |
| 2036 xRun = run.width - xRun; | |
| 2037 } | |
| 30 | 2038 int* advances = run.justify !is null ? run.justify : run.advances; |
| 2039 OS.ScriptXtoCP(xRun, cChars, cGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piCP, &piTrailing); | |
| 2040 if (trailing !is null) trailing[0] = piTrailing; | |
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2041 |
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2042 // DWT: back from codepoints to utf8 index |
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2043 int offsetIndex = segmentsText[ run.start .. $ ].codepointIndexToIndex( piCP ); |
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2044 return untranslateOffset(run.start + offsetIndex); |
| 29 | 2045 } |
| 2046 } | |
| 2047 if (trailing !is null) trailing[0] = 0; | |
| 2048 return untranslateOffset(lineOffset[line + 1]); | |
| 2049 } | |
| 2050 | |
| 2051 /** | |
| 2052 * Returns the orientation of the receiver. | |
| 2053 * | |
| 2054 * @return the orientation style | |
| 2055 * | |
| 2056 * @exception DWTException <ul> | |
| 2057 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2058 * </ul> | |
| 2059 */ | |
| 2060 public int getOrientation () { | |
| 2061 checkLayout(); | |
| 2062 return orientation; | |
| 2063 } | |
| 2064 | |
| 2065 /** | |
| 2066 * Returns the previous offset for the specified offset and movement | |
| 2067 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 2068 * <code>DWT.MOVEMENT_CLUSTER</code> or <code>DWT.MOVEMENT_WORD</code>, | |
| 2069 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 2070 * | |
| 2071 * @param offset the start offset | |
| 2072 * @param movement the movement type | |
| 2073 * @return the previous offset | |
| 2074 * | |
| 2075 * @exception IllegalArgumentException <ul> | |
| 2076 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 2077 * </ul> | |
| 2078 * @exception DWTException <ul> | |
| 2079 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2080 * </ul> | |
| 2081 * | |
| 2082 * @see #getNextOffset(int, int) | |
| 2083 */ | |
| 2084 public int getPreviousOffset (int offset, int movement) { | |
| 2085 checkLayout(); | |
| 2086 return _getOffset (offset, movement, false); | |
| 2087 } | |
| 2088 | |
| 2089 /** | |
| 2090 * Gets the ranges of text that are associated with a <code>TextStyle</code>. | |
| 2091 * | |
| 2092 * @return the ranges, an array of offsets representing the start and end of each | |
| 2093 * text style. | |
| 2094 * | |
| 2095 * @exception DWTException <ul> | |
| 2096 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2097 * </ul> | |
| 2098 * | |
| 2099 * @see #getStyles() | |
| 2100 * | |
| 2101 * @since 3.2 | |
| 2102 */ | |
| 2103 public int[] getRanges () { | |
| 2104 checkLayout(); | |
| 213 | 2105 int[] result = new int[stylesCount * 2]; |
| 29 | 2106 int count = 0; |
| 213 | 2107 for (int i=0; i<stylesCount - 1; i++) { |
| 29 | 2108 if (styles[i].style !is null) { |
| 2109 result[count++] = styles[i].start; | |
| 2110 result[count++] = styles[i + 1].start - 1; | |
| 2111 } | |
| 2112 } | |
| 2113 if (count !is result.length) { | |
| 2114 int[] newResult = new int[count]; | |
| 2115 System.arraycopy(result, 0, newResult, 0, count); | |
| 2116 result = newResult; | |
| 2117 } | |
| 2118 return result; | |
| 2119 } | |
| 2120 | |
| 2121 /** | |
| 2122 * Returns the text segments offsets of the receiver. | |
| 2123 * | |
| 2124 * @return the text segments offsets | |
| 2125 * | |
| 2126 * @exception DWTException <ul> | |
| 2127 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2128 * </ul> | |
| 2129 */ | |
| 2130 public int[] getSegments () { | |
| 2131 checkLayout(); | |
| 2132 return segments; | |
| 2133 } | |
| 2134 | |
|
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2135 void getSegmentsText( out char[] resUtf8, out wchar[] resUtf16 ) { |
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2136 |
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2137 void buildIndexTables() { // build the index translation tables. |
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2138 index8to16.length = resUtf8.length + 1; |
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2139 index16to8.length = resUtf16.length + 1; |
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2140 |
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2141 int idx8, idx16; |
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2142 while( idx8 < resUtf8.length ){ |
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2143 int ate8, ate16; |
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2144 dchar d8 = resUtf8[ idx8 .. $ ].firstCodePoint( ate8 ); |
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2145 dchar d16 = resUtf16[ idx16 .. $ ].firstCodePoint( ate16 ); |
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2146 assert( d8 is d16 ); |
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2147 index16to8[ idx16 .. idx16 +ate16 ] = idx8; |
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2148 index8to16[ idx8 .. idx8 +ate8 ] = idx16; |
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2149 idx8 += ate8; |
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2150 idx16 += ate16; |
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2151 } |
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2152 index16to8[ resUtf16.length ] = resUtf8.length; |
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2153 index8to16[ resUtf8.length ] = resUtf16.length; |
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2154 } |
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2155 |
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2156 if (segments is null) { |
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2157 resUtf8 = text; |
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2158 resUtf16 = wtext; |
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2159 buildIndexTables(); |
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2160 return; |
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2161 } |
| 29 | 2162 int nSegments = segments.length; |
|
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2163 if (nSegments <= 1) { |
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2164 resUtf8 = text; |
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2165 resUtf16 = wtext; |
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2166 buildIndexTables(); |
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2167 return; |
| 29 | 2168 } |
|
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2169 int length_ = text.length; |
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2170 int wlength_ = wtext.length; |
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2171 if (length_ is 0) { |
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2172 resUtf8 = text; |
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2173 resUtf16 = wtext; |
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|
2174 buildIndexTables(); |
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|
2175 return; |
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|
2176 } |
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|
2177 if (nSegments is 2) { |
|
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2178 if (segments[0] is 0 && segments[1] is length_) { |
|
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|
2179 resUtf8 = text; |
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2180 resUtf16 = wtext; |
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|
2181 buildIndexTables(); |
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|
2182 return; |
|
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|
2183 } |
|
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|
2184 } |
|
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|
2185 { |
|
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|
2186 char[] oldChars = text; |
|
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2187 // DWT: MARK is now 3 chars long |
|
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2188 String separator = orientation is DWT.RIGHT_TO_LEFT ? STR_RTL_MARK : STR_LTR_MARK; |
|
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|
2189 assert( separator.length is MARK_SIZE ); |
|
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|
2190 char[] newChars = new char[length_ + nSegments*MARK_SIZE]; |
|
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|
2191 |
|
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2192 int charCount = 0, segmentCount = 0; |
|
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|
2193 while (charCount < length_) { |
|
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|
2194 if (segmentCount < nSegments && charCount is segments[segmentCount]) { |
|
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|
2195 int start = charCount + (segmentCount*MARK_SIZE); |
|
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2196 newChars[ start .. start + MARK_SIZE ] = separator; |
|
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|
2197 segmentCount++; |
|
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|
2198 } else { |
|
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|
2199 newChars[charCount + (segmentCount*MARK_SIZE)] = oldChars[charCount]; |
|
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|
2200 charCount++; |
|
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|
2201 } |
|
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|
2202 } |
|
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|
2203 if (segmentCount < nSegments) { |
|
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|
2204 segments[segmentCount] = charCount; |
|
278
3f53ebb05b5b
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249
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|
2205 int start = charCount + (segmentCount*MARK_SIZE); |
|
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|
2206 newChars[ start .. start + MARK_SIZE ] = separator; |
|
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|
2207 segmentCount++; |
| 29 | 2208 } |
|
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2209 resUtf8 = newChars[ 0 .. Math.min(charCount + (segmentCount*MARK_SIZE), newChars.length)]; |
| 29 | 2210 } |
|
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2211 // now for the wide chars |
|
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|
2212 { |
|
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|
2213 wchar[] oldWChars = wtext; |
|
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2214 wchar[] wseparator = orientation is DWT.RIGHT_TO_LEFT ? WSTR_RTL_MARK : WSTR_LTR_MARK; |
|
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2215 assert( wseparator.length is 1 ); |
|
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2216 wchar[] newWChars = new wchar[wlength_ + nSegments]; |
|
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2217 |
|
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2218 int charCount = 0, segmentCount = 0; |
|
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2219 while (charCount < wlength_) { |
|
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2220 if (segmentCount < nSegments && charCount is wsegments[segmentCount]) { |
|
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2221 int start = charCount + (segmentCount*WMARK_SIZE); |
|
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2222 newWChars[ start .. start + WMARK_SIZE ] = wseparator; |
|
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2223 segmentCount++; |
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2224 } else { |
|
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2225 newWChars[charCount + (segmentCount*WMARK_SIZE)] = oldWChars[charCount]; |
|
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2226 charCount++; |
|
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2227 } |
|
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2228 } |
|
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2229 if (segmentCount < nSegments) { |
|
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2230 wsegments[segmentCount] = charCount; |
|
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2231 int start = charCount + (segmentCount*WMARK_SIZE); |
|
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2232 newWChars[ start .. start + WMARK_SIZE ] = wseparator; |
|
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|
2233 segmentCount++; |
|
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|
2234 } |
|
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|
2235 resUtf16 = newWChars[ 0 .. Math.min(charCount + (segmentCount*WMARK_SIZE), newWChars.length)]; |
| 29 | 2236 } |
|
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2237 buildIndexTables(); |
| 29 | 2238 } |
| 2239 | |
| 2240 /** | |
| 2241 * Returns the line spacing of the receiver. | |
| 2242 * | |
| 2243 * @return the line spacing | |
| 2244 * | |
| 2245 * @exception DWTException <ul> | |
| 2246 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2247 * </ul> | |
| 2248 */ | |
| 2249 public int getSpacing () { | |
| 2250 checkLayout(); | |
| 2251 return lineSpacing; | |
| 2252 } | |
| 2253 | |
| 2254 /** | |
| 2255 * Gets the style of the receiver at the specified character offset. | |
| 2256 * | |
| 2257 * @param offset the text offset | |
| 2258 * @return the style or <code>null</code> if not set | |
| 2259 * | |
| 2260 * @exception IllegalArgumentException <ul> | |
| 2261 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 2262 * </ul> | |
| 2263 * @exception DWTException <ul> | |
| 2264 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2265 * </ul> | |
| 2266 */ | |
| 2267 public TextStyle getStyle (int offset) { | |
| 2268 checkLayout(); | |
| 227 | 2269 int length = text.length; |
| 2270 if (!(0 <= offset && offset < length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 213 | 2271 for (int i=1; i<stylesCount; i++) { |
| 29 | 2272 if (styles[i].start > offset) { |
| 2273 return styles[i - 1].style; | |
| 2274 } | |
| 2275 } | |
| 2276 return null; | |
| 2277 } | |
| 2278 | |
| 2279 /** | |
| 2280 * Gets all styles of the receiver. | |
| 2281 * | |
| 2282 * @return the styles | |
| 2283 * | |
| 2284 * @exception DWTException <ul> | |
| 2285 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2286 * </ul> | |
| 2287 * | |
| 2288 * @see #getRanges() | |
| 2289 * | |
| 2290 * @since 3.2 | |
| 2291 */ | |
| 2292 public TextStyle[] getStyles () { | |
| 2293 checkLayout(); | |
| 213 | 2294 TextStyle[] result = new TextStyle[stylesCount]; |
| 29 | 2295 int count = 0; |
| 213 | 2296 for (int i=0; i<stylesCount; i++) { |
| 29 | 2297 if (styles[i].style !is null) { |
| 2298 result[count++] = styles[i].style; | |
| 2299 } | |
| 2300 } | |
| 2301 if (count !is result.length) { | |
| 2302 TextStyle[] newResult = new TextStyle[count]; | |
| 2303 System.arraycopy(result, 0, newResult, 0, count); | |
| 2304 result = newResult; | |
| 2305 } | |
| 2306 return result; | |
| 2307 } | |
| 2308 | |
| 2309 /** | |
| 2310 * Returns the tab list of the receiver. | |
| 2311 * | |
| 2312 * @return the tab list | |
| 2313 * | |
| 2314 * @exception DWTException <ul> | |
| 2315 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2316 * </ul> | |
| 2317 */ | |
| 2318 public int[] getTabs () { | |
| 2319 checkLayout(); | |
| 2320 return tabs; | |
| 2321 } | |
| 2322 | |
| 2323 /** | |
| 2324 * Gets the receiver's text, which will be an empty | |
| 2325 * string if it has never been set. | |
| 2326 * | |
| 2327 * @return the receiver's text | |
| 2328 * | |
| 2329 * @exception DWTException <ul> | |
| 2330 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2331 * </ul> | |
| 2332 */ | |
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2333 public String getText () { |
| 29 | 2334 checkLayout(); |
| 2335 return text; | |
| 2336 } | |
| 2337 | |
| 2338 /** | |
| 2339 * Returns the width of the receiver. | |
| 2340 * | |
| 2341 * @return the width | |
| 2342 * | |
| 2343 * @exception DWTException <ul> | |
| 2344 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2345 * </ul> | |
| 2346 */ | |
| 2347 public int getWidth () { | |
| 2348 checkLayout(); | |
| 2349 return wrapWidth; | |
| 2350 } | |
| 2351 | |
| 2352 /** | |
| 2353 * Returns <code>true</code> if the text layout has been disposed, | |
| 2354 * and <code>false</code> otherwise. | |
| 2355 * <p> | |
| 2356 * This method gets the dispose state for the text layout. | |
| 2357 * When a text layout has been disposed, it is an error to | |
| 2358 * invoke any other method using the text layout. | |
| 2359 * </p> | |
| 2360 * | |
| 2361 * @return <code>true</code> when the text layout is disposed and <code>false</code> otherwise | |
| 2362 */ | |
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2363 override public bool isDisposed () { |
| 29 | 2364 return device is null; |
| 2365 } | |
| 2366 | |
| 2367 /* | |
| 2368 * Itemize the receiver text | |
| 2369 */ | |
| 2370 StyleItem[] itemize () { | |
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2371 // DWT: itemize is the process of finding changes in direction |
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2372 getSegmentsText(segmentsText, segmentsWText ); |
| 227 | 2373 int length = segmentsText.length; |
| 30 | 2374 SCRIPT_CONTROL scriptControl; |
| 2375 SCRIPT_STATE scriptState; | |
| 227 | 2376 final int MAX_ITEM = length + 1; |
| 29 | 2377 |
| 2378 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 2379 scriptState.uBidiLevel = 1; | |
| 2380 scriptState.fArabicNumContext = true; | |
| 30 | 2381 SCRIPT_DIGITSUBSTITUTE psds; |
| 2382 OS.ScriptRecordDigitSubstitution(OS.LOCALE_USER_DEFAULT, &psds); | |
| 2383 OS.ScriptApplyDigitSubstitution(&psds, &scriptControl, &scriptState); | |
| 29 | 2384 } |
| 2385 | |
| 30 | 2386 auto hHeap = OS.GetProcessHeap(); |
| 2387 auto pItems = cast(SCRIPT_ITEM*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, MAX_ITEM * SCRIPT_ITEM.sizeof); | |
| 2388 if (pItems is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2389 int pcItems; | |
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2390 wchar[] chars = segmentsWText; |
| 30 | 2391 OS.ScriptItemize(chars.ptr, chars.length, MAX_ITEM, &scriptControl, &scriptState, pItems, &pcItems); |
| 29 | 2392 // if (hr is E_OUTOFMEMORY) //TODO handle it |
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2393 // DWT pcItems is not inclusive the trailing item |
| 29 | 2394 |
| 30 | 2395 StyleItem[] runs = merge(pItems, pcItems); |
| 29 | 2396 OS.HeapFree(hHeap, 0, pItems); |
| 2397 return runs; | |
| 2398 } | |
| 2399 | |
| 2400 /* | |
| 2401 * Merge styles ranges and script items | |
| 2402 */ | |
| 30 | 2403 StyleItem[] merge (SCRIPT_ITEM* items, int itemCount) { |
| 213 | 2404 if (styles.length > stylesCount) { |
| 2405 StyleItem[] newStyles = new StyleItem[stylesCount]; | |
| 2406 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2407 styles = newStyles; | |
| 2408 } | |
| 30 | 2409 int count = 0, start = 0, end = segmentsText.length, itemIndex = 0, styleIndex = 0; |
| 213 | 2410 StyleItem[] runs = new StyleItem[itemCount + stylesCount]; |
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2411 SCRIPT_ITEM* scriptItem; |
| 29 | 2412 bool linkBefore = false; |
| 2413 while (start < end) { | |
| 2414 StyleItem item = new StyleItem(); | |
| 2415 item.start = start; | |
| 2416 item.style = styles[styleIndex].style; | |
| 2417 runs[count++] = item; | |
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2418 scriptItem = items + itemIndex; |
| 29 | 2419 item.analysis = scriptItem.a; |
| 2420 if (linkBefore) { | |
| 2421 item.analysis.fLinkBefore = true; | |
| 2422 linkBefore = false; | |
| 2423 } | |
| 30 | 2424 //scriptItem.a = new SCRIPT_ANALYSIS(); |
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2425 scriptItem = items + (itemIndex + 1); |
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2426 int itemLimit = index16to8[scriptItem.iCharPos]; |
| 29 | 2427 int styleLimit = translateOffset(styles[styleIndex + 1].start); |
| 2428 if (styleLimit <= itemLimit) { | |
| 2429 styleIndex++; | |
| 2430 start = styleLimit; | |
| 2431 if (start < itemLimit && 0 < start && start < end) { | |
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2432 dchar pChar = segmentsText[ segmentsText.getAbsoluteCodePointOffset(start, -1) ..$].firstCodePoint(); |
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2433 dchar tChar = segmentsText[start ..$].firstCodePoint(); |
| 213 | 2434 if (Compatibility.isLetter(pChar) && Compatibility.isLetter(tChar)) { |
| 29 | 2435 item.analysis.fLinkAfter = true; |
| 2436 linkBefore = true; | |
| 2437 } | |
| 2438 } | |
| 2439 } | |
| 2440 if (itemLimit <= styleLimit) { | |
| 2441 itemIndex++; | |
| 2442 start = itemLimit; | |
| 2443 } | |
| 2444 item.length = start - item.start; | |
| 2445 } | |
| 2446 StyleItem item = new StyleItem(); | |
| 2447 item.start = end; | |
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2448 scriptItem = items + itemCount; |
| 29 | 2449 item.analysis = scriptItem.a; |
| 2450 runs[count++] = item; | |
| 2451 if (runs.length !is count) { | |
| 2452 StyleItem[] result = new StyleItem[count]; | |
| 2453 System.arraycopy(runs, 0, result, 0, count); | |
| 2454 return result; | |
| 2455 } | |
| 2456 return runs; | |
| 2457 } | |
| 2458 | |
| 2459 /* | |
| 2460 * Reorder the run | |
| 2461 */ | |
| 2462 StyleItem[] reorder (StyleItem[] runs, bool terminate) { | |
| 30 | 2463 int length_ = runs.length; |
| 2464 if (length_ <= 1) return runs; | |
| 2465 ubyte[] bidiLevels = new ubyte[length_]; | |
| 2466 for (int i=0; i<length_; i++) { | |
| 29 | 2467 bidiLevels[i] = cast(byte)(runs[i].analysis.s.uBidiLevel & 0x1F); |
| 2468 } | |
| 2469 /* | |
| 2470 * Feature in Windows. If the orientation is RTL Uniscribe will | |
| 2471 * resolve the level of line breaks to 1, this can cause the line | |
| 2472 * break to be reorder to the middle of the line. The fix is to set | |
| 2473 * the level to zero to prevent it to be reordered. | |
| 2474 */ | |
| 30 | 2475 StyleItem lastRun = runs[length_ - 1]; |
| 29 | 2476 if (lastRun.lineBreak && !lastRun.softBreak) { |
| 30 | 2477 bidiLevels[length_ - 1] = 0; |
| 29 | 2478 } |
| 30 | 2479 int[] log2vis = new int[length_]; |
| 2480 OS.ScriptLayout(length_, bidiLevels.ptr, null, log2vis.ptr); | |
| 2481 StyleItem[] result = new StyleItem[length_]; | |
| 2482 for (int i=0; i<length_; i++) { | |
| 29 | 2483 result[log2vis[i]] = runs[i]; |
| 2484 } | |
| 2485 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 30 | 2486 if (terminate) length_--; |
| 2487 for (int i = 0; i < length_ / 2 ; i++) { | |
| 29 | 2488 StyleItem tmp = result[i]; |
| 30 | 2489 result[i] = result[length_ - i - 1]; |
| 2490 result[length_ - i - 1] = tmp; | |
| 29 | 2491 } |
| 2492 } | |
| 2493 return result; | |
| 2494 } | |
| 2495 | |
| 2496 /** | |
| 2497 * Sets the text alignment for the receiver. The alignment controls | |
| 2498 * how a line of text is positioned horizontally. The argument should | |
| 2499 * be one of <code>DWT.LEFT</code>, <code>DWT.RIGHT</code> or <code>DWT.CENTER</code>. | |
| 2500 * <p> | |
| 2501 * The default alignment is <code>DWT.LEFT</code>. Note that the receiver's | |
| 2502 * width must be set in order to use <code>DWT.RIGHT</code> or <code>DWT.CENTER</code> | |
| 2503 * alignment. | |
| 2504 * </p> | |
| 2505 * | |
| 2506 * @param alignment the new alignment | |
| 2507 * | |
| 2508 * @exception DWTException <ul> | |
| 2509 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2510 * </ul> | |
| 2511 * | |
| 2512 * @see #setWidth(int) | |
| 2513 */ | |
| 2514 public void setAlignment (int alignment) { | |
| 2515 checkLayout(); | |
| 2516 int mask = DWT.LEFT | DWT.CENTER | DWT.RIGHT; | |
| 2517 alignment &= mask; | |
| 2518 if (alignment is 0) return; | |
| 2519 if ((alignment & DWT.LEFT) !is 0) alignment = DWT.LEFT; | |
| 2520 if ((alignment & DWT.RIGHT) !is 0) alignment = DWT.RIGHT; | |
| 2521 if (this.alignment is alignment) return; | |
| 2522 freeRuns(); | |
| 2523 this.alignment = alignment; | |
| 2524 } | |
| 2525 | |
| 2526 /** | |
| 2527 * Sets the ascent of the receiver. The ascent is distance in pixels | |
| 2528 * from the baseline to the top of the line and it is applied to all | |
| 2529 * lines. The default value is <code>-1</code> which means that the | |
| 2530 * ascent is calculated from the line fonts. | |
| 2531 * | |
| 2532 * @param ascent the new ascent | |
| 2533 * | |
| 2534 * @exception IllegalArgumentException <ul> | |
| 2535 * <li>ERROR_INVALID_ARGUMENT - if the ascent is less than <code>-1</code></li> | |
| 2536 * </ul> | |
| 2537 * @exception DWTException <ul> | |
| 2538 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2539 * </ul> | |
| 2540 * | |
| 2541 * @see #setDescent(int) | |
| 2542 * @see #getLineMetrics(int) | |
| 2543 */ | |
| 2544 public void setAscent(int ascent) { | |
| 2545 checkLayout(); | |
| 2546 if (ascent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2547 if (this.ascent is ascent) return; | |
| 2548 freeRuns(); | |
| 2549 this.ascent = ascent; | |
| 2550 } | |
| 2551 | |
| 2552 /** | |
| 2553 * Sets the descent of the receiver. The descent is distance in pixels | |
| 2554 * from the baseline to the bottom of the line and it is applied to all | |
| 2555 * lines. The default value is <code>-1</code> which means that the | |
| 2556 * descent is calculated from the line fonts. | |
| 2557 * | |
| 2558 * @param descent the new descent | |
| 2559 * | |
| 2560 * @exception IllegalArgumentException <ul> | |
| 2561 * <li>ERROR_INVALID_ARGUMENT - if the descent is less than <code>-1</code></li> | |
| 2562 * </ul> | |
| 2563 * @exception DWTException <ul> | |
| 2564 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2565 * </ul> | |
| 2566 * | |
| 2567 * @see #setAscent(int) | |
| 2568 * @see #getLineMetrics(int) | |
| 2569 */ | |
| 2570 public void setDescent(int descent) { | |
| 2571 checkLayout(); | |
| 2572 if (descent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2573 if (this.descent is descent) return; | |
| 2574 freeRuns(); | |
| 2575 this.descent = descent; | |
| 2576 } | |
| 2577 | |
| 2578 /** | |
| 2579 * Sets the default font which will be used by the receiver | |
| 2580 * to draw and measure text. If the | |
| 2581 * argument is null, then a default font appropriate | |
| 2582 * for the platform will be used instead. Note that a text | |
| 2583 * style can override the default font. | |
| 2584 * | |
| 2585 * @param font the new font for the receiver, or null to indicate a default font | |
| 2586 * | |
| 2587 * @exception IllegalArgumentException <ul> | |
| 2588 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> | |
| 2589 * </ul> | |
| 2590 * @exception DWTException <ul> | |
| 2591 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2592 * </ul> | |
| 2593 */ | |
| 2594 public void setFont (Font font) { | |
| 2595 checkLayout(); | |
| 2596 if (font !is null && font.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 213 | 2597 Font oldFont = this.font; |
| 2598 if (oldFont is font) return; | |
| 2599 this.font = font; | |
| 2600 if (oldFont !is null && oldFont.opEquals(font)) return; | |
| 29 | 2601 freeRuns(); |
| 2602 } | |
| 2603 | |
| 2604 /** | |
| 2605 * Sets the indent of the receiver. This indent it applied of the first line of | |
| 2606 * each paragraph. | |
| 2607 * | |
| 2608 * @param indent new indent | |
| 2609 * | |
| 2610 * @exception DWTException <ul> | |
| 2611 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2612 * </ul> | |
| 2613 * | |
| 2614 * @since 3.2 | |
| 2615 */ | |
| 2616 public void setIndent (int indent) { | |
| 2617 checkLayout(); | |
| 2618 if (indent < 0) return; | |
| 2619 if (this.indent is indent) return; | |
| 2620 freeRuns(); | |
| 2621 this.indent = indent; | |
| 2622 } | |
| 2623 | |
| 2624 /** | |
| 2625 * Sets the justification of the receiver. Note that the receiver's | |
| 2626 * width must be set in order to use justification. | |
| 2627 * | |
| 2628 * @param justify new justify | |
| 2629 * | |
| 2630 * @exception DWTException <ul> | |
| 2631 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2632 * </ul> | |
| 2633 * | |
| 2634 * @since 3.2 | |
| 2635 */ | |
| 2636 public void setJustify (bool justify) { | |
| 2637 checkLayout(); | |
| 2638 if (this.justify is justify) return; | |
| 2639 freeRuns(); | |
| 2640 this.justify = justify; | |
| 2641 } | |
| 2642 | |
| 2643 /** | |
| 2644 * Sets the orientation of the receiver, which must be one | |
| 2645 * of <code>DWT.LEFT_TO_RIGHT</code> or <code>DWT.RIGHT_TO_LEFT</code>. | |
| 2646 * | |
| 2647 * @param orientation new orientation style | |
| 2648 * | |
| 2649 * @exception DWTException <ul> | |
| 2650 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2651 * </ul> | |
| 2652 */ | |
| 2653 public void setOrientation (int orientation) { | |
| 2654 checkLayout(); | |
| 2655 int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; | |
| 2656 orientation &= mask; | |
| 2657 if (orientation is 0) return; | |
| 2658 if ((orientation & DWT.LEFT_TO_RIGHT) !is 0) orientation = DWT.LEFT_TO_RIGHT; | |
| 2659 if (this.orientation is orientation) return; | |
| 2660 this.orientation = orientation; | |
| 2661 freeRuns(); | |
| 2662 } | |
| 2663 | |
| 2664 /** | |
| 2665 * Sets the offsets of the receiver's text segments. Text segments are used to | |
| 2666 * override the default behaviour of the bidirectional algorithm. | |
| 2667 * Bidirectional reordering can happen within a text segment but not | |
| 2668 * between two adjacent segments. | |
| 2669 * <p> | |
| 2670 * Each text segment is determined by two consecutive offsets in the | |
| 2671 * <code>segments</code> arrays. The first element of the array should | |
| 2672 * always be zero and the last one should always be equals to length of | |
| 2673 * the text. | |
| 2674 * </p> | |
| 2675 * | |
| 2676 * @param segments the text segments offset | |
| 2677 * | |
| 2678 * @exception DWTException <ul> | |
| 2679 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2680 * </ul> | |
| 2681 */ | |
| 2682 public void setSegments(int[] segments) { | |
| 2683 checkLayout(); | |
| 2684 if (this.segments is null && segments is null) return; | |
| 2685 if (this.segments !is null && segments !is null) { | |
| 2686 if (this.segments.length is segments.length) { | |
| 2687 int i; | |
| 2688 for (i = 0; i <segments.length; i++) { | |
| 2689 if (this.segments[i] !is segments[i]) break; | |
| 2690 } | |
| 2691 if (i is segments.length) return; | |
| 2692 } | |
| 2693 } | |
| 2694 freeRuns(); | |
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2695 this.segments = segments.dup; |
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2696 |
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2697 // DWT: create the wsegments ... |
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2698 this.wsegments.length = segments.length; |
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2699 uint index8, index16; |
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2700 uint segIndex = 1; |
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|
2701 while(index8 < text.length ){ |
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2702 int ate8; |
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2703 int ate16; |
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2704 dchar d8 = text[ index8 .. $ ].firstCodePoint( ate8 ); |
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2705 dchar d16 = wtext[ index16 .. $ ].firstCodePoint( ate16 ); |
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2706 assert( d8 is d16 ); |
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2707 assert( ate8 > 0 ); |
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|
2708 assert( ate16 > 0 ); |
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2709 index8 += ate8; |
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|
2710 index16 += ate16; |
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2711 if( segments[segIndex] is index8 ){ |
|
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|
2712 wsegments[segIndex] = index16; |
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2713 } |
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2714 } |
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|
2715 assert( index16 is wtext.length ); |
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|
2716 assert( segIndex is segments.length ); |
| 29 | 2717 } |
| 2718 | |
| 2719 /** | |
| 2720 * Sets the line spacing of the receiver. The line spacing | |
| 2721 * is the space left between lines. | |
| 2722 * | |
| 2723 * @param spacing the new line spacing | |
| 2724 * | |
| 2725 * @exception IllegalArgumentException <ul> | |
| 2726 * <li>ERROR_INVALID_ARGUMENT - if the spacing is negative</li> | |
| 2727 * </ul> | |
| 2728 * @exception DWTException <ul> | |
| 2729 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2730 * </ul> | |
| 2731 */ | |
| 2732 public void setSpacing (int spacing) { | |
| 2733 checkLayout(); | |
| 2734 if (spacing < 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2735 if (this.lineSpacing is spacing) return; | |
| 2736 freeRuns(); | |
| 2737 this.lineSpacing = spacing; | |
| 2738 } | |
| 2739 | |
| 2740 /** | |
| 2741 * Sets the style of the receiver for the specified range. Styles previously | |
| 2742 * set for that range will be overwritten. The start and end offsets are | |
| 2743 * inclusive and will be clamped if out of range. | |
| 2744 * | |
| 2745 * @param style the style | |
| 2746 * @param start the start offset | |
| 2747 * @param end the end offset | |
| 2748 * | |
| 2749 * @exception DWTException <ul> | |
| 2750 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2751 * </ul> | |
| 2752 */ | |
| 2753 public void setStyle (TextStyle style, int start, int end) { | |
| 2754 checkLayout(); | |
| 227 | 2755 int length = text.length; |
| 2756 if (length is 0) return; | |
| 29 | 2757 if (start > end) return; |
| 227 | 2758 start = Math.min(Math.max(0, start), length - 1); |
| 2759 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 2760 int low = -1; |
| 213 | 2761 int high = stylesCount; |
| 29 | 2762 while (high - low > 1) { |
| 2763 int index = (high + low) / 2; | |
| 2764 if (styles[index + 1].start > start) { | |
| 2765 high = index; | |
| 2766 } else { | |
| 2767 low = index; | |
| 2768 } | |
| 2769 } | |
| 213 | 2770 if (0 <= high && high < stylesCount) { |
| 29 | 2771 StyleItem item = styles[high]; |
| 2772 if (item.start is start && styles[high + 1].start - 1 is end) { | |
| 2773 if (style is null) { | |
| 2774 if (item.style is null) return; | |
| 2775 } else { | |
| 227 | 2776 if (style.opEquals(item.style)) return; |
| 29 | 2777 } |
| 2778 } | |
| 2779 } | |
| 2780 freeRuns(); | |
| 2781 int modifyStart = high; | |
| 2782 int modifyEnd = modifyStart; | |
| 213 | 2783 while (modifyEnd < stylesCount) { |
| 29 | 2784 if (styles[modifyEnd + 1].start > end) break; |
| 2785 modifyEnd++; | |
| 2786 } | |
| 2787 if (modifyStart is modifyEnd) { | |
| 2788 int styleStart = styles[modifyStart].start; | |
| 2789 int styleEnd = styles[modifyEnd + 1].start - 1; | |
| 2790 if (styleStart is start && styleEnd is end) { | |
| 2791 styles[modifyStart].style = style; | |
| 2792 return; | |
| 2793 } | |
| 2794 if (styleStart !is start && styleEnd !is end) { | |
| 213 | 2795 int newLength = stylesCount + 2; |
| 2796 if (newLength > styles.length) { | |
| 2797 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2798 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2799 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2800 styles = newStyles; | |
| 2801 } | |
| 2802 System.arraycopy(styles, modifyEnd + 1, styles, modifyEnd + 3, stylesCount - modifyEnd - 1); | |
| 29 | 2803 StyleItem item = new StyleItem(); |
| 2804 item.start = start; | |
| 2805 item.style = style; | |
| 213 | 2806 styles[modifyStart + 1] = item; |
| 29 | 2807 item = new StyleItem(); |
| 2808 item.start = end + 1; | |
| 2809 item.style = styles[modifyStart].style; | |
| 213 | 2810 styles[modifyStart + 2] = item; |
| 2811 stylesCount = newLength; | |
| 29 | 2812 return; |
| 2813 } | |
| 2814 } | |
| 2815 if (start is styles[modifyStart].start) modifyStart--; | |
| 2816 if (end is styles[modifyEnd + 1].start - 1) modifyEnd++; | |
| 213 | 2817 int newLength = stylesCount + 1 - (modifyEnd - modifyStart - 1); |
| 2818 if (newLength > styles.length) { | |
| 2819 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2820 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2821 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2822 styles = newStyles; | |
| 2823 } | |
| 2824 System.arraycopy(styles, modifyEnd, styles, modifyStart + 2, stylesCount - modifyEnd); | |
| 29 | 2825 StyleItem item = new StyleItem(); |
| 2826 item.start = start; | |
| 2827 item.style = style; | |
| 213 | 2828 styles[modifyStart + 1] = item; |
| 2829 styles[modifyStart + 2].start = end + 1; | |
| 2830 stylesCount = newLength; | |
| 29 | 2831 } |
| 2832 | |
| 2833 /** | |
| 2834 * Sets the receiver's tab list. Each value in the tab list specifies | |
| 2835 * the space in pixels from the origin of the text layout to the respective | |
| 2836 * tab stop. The last tab stop width is repeated continuously. | |
| 2837 * | |
| 2838 * @param tabs the new tab list | |
| 2839 * | |
| 2840 * @exception DWTException <ul> | |
| 2841 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2842 * </ul> | |
| 2843 */ | |
| 2844 public void setTabs (int[] tabs) { | |
| 2845 checkLayout(); | |
| 2846 if (this.tabs is null && tabs is null) return; | |
| 2847 if (this.tabs !is null && tabs !is null) { | |
| 2848 if (this.tabs.length is tabs.length) { | |
| 2849 int i; | |
| 2850 for (i = 0; i <tabs.length; i++) { | |
| 2851 if (this.tabs[i] !is tabs[i]) break; | |
| 2852 } | |
| 2853 if (i is tabs.length) return; | |
| 2854 } | |
| 2855 } | |
| 2856 freeRuns(); | |
| 2857 this.tabs = tabs; | |
| 2858 } | |
| 2859 | |
| 2860 /** | |
| 2861 * Sets the receiver's text. | |
| 2862 * | |
| 2863 * @param text the new text | |
| 2864 * | |
| 2865 * @exception IllegalArgumentException <ul> | |
| 2866 * <li>ERROR_NULL_ARGUMENT - if the text is null</li> | |
| 2867 * </ul> | |
| 2868 * @exception DWTException <ul> | |
| 2869 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2870 * </ul> | |
| 2871 */ | |
|
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|
2872 public void setText (String text) { |
| 29 | 2873 checkLayout(); |
| 229 | 2874 |
|
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|
2875 //PORTING_CHANGE: allow null argument |
|
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|
2876 //if (text is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
| 227 | 2877 if (text.equals(this.text)) return; |
| 29 | 2878 freeRuns(); |
|
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|
2879 this.text = text.dup; |
|
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|
2880 this.wtext = StrToWCHARs(text); |
| 29 | 2881 styles = new StyleItem[2]; |
| 2882 styles[0] = new StyleItem(); | |
| 2883 styles[1] = new StyleItem(); | |
| 30 | 2884 styles[1].start = text.length; |
| 213 | 2885 stylesCount = 2; |
| 29 | 2886 } |
| 2887 | |
| 2888 /** | |
| 2889 * Sets the line width of the receiver, which determines how | |
| 2890 * text should be wrapped and aligned. The default value is | |
| 2891 * <code>-1</code> which means wrapping is disabled. | |
| 2892 * | |
| 2893 * @param width the new width | |
| 2894 * | |
| 2895 * @exception IllegalArgumentException <ul> | |
| 2896 * <li>ERROR_INVALID_ARGUMENT - if the width is <code>0</code> or less than <code>-1</code></li> | |
| 2897 * </ul> | |
| 2898 * @exception DWTException <ul> | |
| 2899 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2900 * </ul> | |
| 2901 * | |
| 2902 * @see #setAlignment(int) | |
| 2903 */ | |
| 2904 public void setWidth (int width) { | |
| 2905 checkLayout(); | |
| 2906 if (width < -1 || width is 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2907 if (this.wrapWidth is width) return; | |
| 2908 freeRuns(); | |
| 2909 this.wrapWidth = width; | |
| 2910 } | |
| 2911 | |
| 249 | 2912 bool shape (HDC hdc, StyleItem run, wchar[] wchars, int[] glyphCount, int maxGlyphs, SCRIPT_PROPERTIES* sp) { |
| 246 | 2913 bool useCMAPcheck = !sp.fComplex && !run.analysis.fNoGlyphIndex; |
| 2914 if (useCMAPcheck) { | |
|
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|
2915 scope ushort[] glyphs = new ushort[wchars.length]; |
| 249 | 2916 if (OS.ScriptGetCMap(hdc, run.psc, wchars.ptr, wchars.length, 0, glyphs.ptr) !is OS.S_OK) { |
| 2917 if (run.psc !is null) { | |
| 246 | 2918 OS.ScriptFreeCache(run.psc); |
| 2919 glyphCount[0] = 0; | |
|
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|
2920 int[1] one = 1; |
|
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|
2921 *cast(int*)run.psc = 0; |
| 246 | 2922 } |
| 2923 return false; | |
| 2924 } | |
| 2925 } | |
| 30 | 2926 auto hr = OS.ScriptShape(hdc, run.psc, wchars.ptr, wchars.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, glyphCount.ptr); |
| 29 | 2927 run.glyphCount = glyphCount[0]; |
| 246 | 2928 if (useCMAPcheck) return true; |
| 2929 | |
| 29 | 2930 if (hr !is OS.USP_E_SCRIPT_NOT_IN_FONT) { |
| 246 | 2931 if (run.analysis.fNoGlyphIndex) return true; |
| 30 | 2932 SCRIPT_FONTPROPERTIES fp; |
| 29 | 2933 fp.cBytes = SCRIPT_FONTPROPERTIES.sizeof; |
| 30 | 2934 OS.ScriptGetFontProperties(hdc, run.psc, &fp); |
| 2935 ushort[] glyphs = run.glyphs[ 0 .. glyphCount[0] ]; | |
| 29 | 2936 int i; |
| 2937 for (i = 0; i < glyphs.length; i++) { | |
| 2938 if (glyphs[i] is fp.wgDefault) break; | |
| 2939 } | |
| 2940 if (i is glyphs.length) return true; | |
| 2941 } | |
| 30 | 2942 if (run.psc !is null) { |
| 29 | 2943 OS.ScriptFreeCache(run.psc); |
| 2944 glyphCount[0] = 0; | |
|
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|
2945 *cast(int*)run.psc = 0; |
| 29 | 2946 } |
| 2947 run.glyphCount = 0; | |
| 2948 return false; | |
| 2949 } | |
| 2950 | |
| 213 | 2951 |
| 29 | 2952 /* |
| 2953 * Generate glyphs for one Run. | |
| 2954 */ | |
| 2955 void shape (HDC hdc, StyleItem run) { | |
|
278
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Fix: make MARK copy work correctly mit multiple chars.
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249
diff
changeset
|
2956 int[1] buffer; |
|
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|
2957 wchar[] wchars = segmentsWText[ index8to16[ run.start ] .. index8to16[ run.start + run.length ] ]; |
| 249 | 2958 int maxGlyphs = (wchars.length * 3 / 2) + 16; |
| 30 | 2959 auto hHeap = OS.GetProcessHeap(); |
| 2960 run.glyphs = cast(ushort*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2961 if (run.glyphs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2962 run.clusters = cast(WORD*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2963 if (run.clusters is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2964 run.visAttrs = cast(SCRIPT_VISATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * SCRIPT_VISATTR_SIZEOF); | |
| 2965 if (run.visAttrs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2966 run.psc = cast(SCRIPT_CACHE*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, (void*).sizeof); |
| 30 | 2967 if (run.psc is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 249 | 2968 short script = run.analysis.eScript; |
|
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|
2969 SCRIPT_PROPERTIES sp = *device.scripts[script]; |
|
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|
2970 bool shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, &sp); |
|
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|
2971 int res; |
| 213 | 2972 if (!shapeSucceed) { |
| 249 | 2973 auto hFont = OS.GetCurrentObject(hdc, OS.OBJ_FONT); |
| 2974 auto ssa = cast(SCRIPT_STRING_ANALYSIS*) OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_STRING_ANALYSIS.sizeof); | |
| 2975 auto metaFileDc = OS.CreateEnhMetaFile(hdc, null, null, null); | |
| 2976 auto oldMetaFont = OS.SelectObject(metaFileDc, hFont); | |
| 246 | 2977 int flags = OS.SSA_METAFILE | OS.SSA_FALLBACK | OS.SSA_GLYPHS | OS.SSA_LINK; |
| 249 | 2978 if (OS.ScriptStringAnalyse(metaFileDc, wchars.ptr, wchars.length, 0, -1, flags, 0, null, null, null, null, null, ssa) is OS.S_OK) { |
|
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|
2979 OS.ScriptStringOut(*ssa, 0, 0, 0, null, 0, 0, false); |
| 246 | 2980 OS.ScriptStringFree(ssa); |
| 2981 } | |
| 2982 OS.HeapFree(hHeap, 0, ssa); | |
| 2983 OS.SelectObject(metaFileDc, oldMetaFont); | |
| 249 | 2984 auto metaFile = OS.CloseEnhMetaFile(metaFileDc); |
| 2985 static extern(Windows) int metaFileEnumProc (HDC hDC, HANDLETABLE* table, ENHMETARECORD* record, int nObj, LPARAM lpData) { | |
|
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|
2986 EMREXTCREATEFONTINDIRECTW* emr_ = cast(EMREXTCREATEFONTINDIRECTW*)lpData; |
| 249 | 2987 OS.MoveMemory(&emr_.emr, record, EMR.sizeof); |
| 2988 switch (emr_.emr.iType) { | |
| 2989 case OS.EMR_EXTCREATEFONTINDIRECTW: | |
| 2990 OS.MoveMemory(emr_, record, EMREXTCREATEFONTINDIRECTW.sizeof); | |
| 2991 break; | |
| 2992 case OS.EMR_EXTTEXTOUTW: | |
| 2993 return 0; | |
|
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|
2994 default: |
| 246 | 2995 } |
| 249 | 2996 return 1; |
| 2997 } | |
|
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2998 |
|
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|
2999 EMREXTCREATEFONTINDIRECTW emr; |
| 249 | 3000 OS.EnumEnhMetaFile(null, metaFile, &metaFileEnumProc, &emr, null); |
|
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3001 res = OS.DeleteEnhMetaFile(metaFile); |
|
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|
3002 assert( res !is 0 ); |
| 246 | 3003 |
| 249 | 3004 auto newFont = OS.CreateFontIndirectW(&emr.elfw.elfLogFont); |
|
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3005 assert( newFont !is null ); |
|
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3006 |
| 246 | 3007 OS.SelectObject(hdc, newFont); |
|
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|
3008 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, &sp)) is true ) { |
| 246 | 3009 run.fallbackFont = newFont; |
| 3010 } | |
| 3011 if (!shapeSucceed) { | |
| 3012 if (!sp.fComplex) { | |
| 3013 run.analysis.fNoGlyphIndex = true; | |
|
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|
3014 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, &sp)) is true ) { |
| 246 | 3015 run.fallbackFont = newFont; |
| 29 | 3016 } else { |
| 246 | 3017 run.analysis.fNoGlyphIndex = false; |
| 29 | 3018 } |
| 3019 } | |
| 3020 } | |
| 246 | 3021 if (!shapeSucceed) { |
|
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|
3022 if (mLangFontLink2 !is null) { |
|
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|
3023 HANDLE hNewFont; |
|
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changeset
|
3024 int dwCodePages, cchCodePages; |
| 246 | 3025 /* GetStrCodePages() */ |
|
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|
3026 OS.VtblCall(4, mLangFontLink2, cast(int)wchars.ptr, wchars.length, 0, cast(int)&dwCodePages, cast(int)&cchCodePages); |
| 246 | 3027 /* MapFont() */ |
|
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3028 if (OS.VtblCall(10, mLangFontLink2, cast(int)hdc, dwCodePages, cast(int)wchars[0], cast(int)&hNewFont) is OS.S_OK) { |
| 246 | 3029 LOGFONT logFont; |
| 3030 OS.GetObject( hNewFont, LOGFONT.sizeof, &logFont ); | |
| 3031 /* ReleaseFont() */ | |
| 3032 OS.VtblCall(8, mLangFontLink2, cast(int)hNewFont); | |
| 249 | 3033 auto mLangFont = OS.CreateFontIndirect(&logFont); |
| 246 | 3034 auto oldFont = OS.SelectObject(hdc, mLangFont); |
|
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|
3035 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, &sp)) is true ) { |
| 246 | 3036 run.fallbackFont = mLangFont; |
| 3037 } else { | |
| 3038 OS.SelectObject(hdc, oldFont); | |
| 3039 OS.DeleteObject(mLangFont); | |
| 3040 } | |
| 3041 } | |
| 213 | 3042 } |
| 3043 } | |
| 246 | 3044 if (!shapeSucceed) OS.SelectObject(hdc, hFont); |
| 3045 if (newFont !is run.fallbackFont) OS.DeleteObject(newFont); | |
| 213 | 3046 } |
| 3047 | |
| 3048 if (!shapeSucceed) { | |
| 3049 /* | |
| 3050 * Shape Failed. | |
| 3051 * Give up and shape the run with the default font. | |
| 3052 * Missing glyphs typically will be represent as black boxes in the text. | |
| 3053 */ | |
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3054 OS.ScriptShape(hdc, run.psc, wchars.ptr, wchars.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, buffer.ptr); |
| 213 | 3055 run.glyphCount = buffer[0]; |
| 3056 } | |
| 3057 int[3] abc; | |
| 30 | 3058 run.advances = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * 4); |
| 3059 if (run.advances is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 3060 run.goffsets = cast(GOFFSET*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * GOFFSET_SIZEOF); | |
| 3061 if (run.goffsets is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 3062 OS.ScriptPlace(hdc, run.psc, run.glyphs, run.glyphCount, run.visAttrs, &run.analysis, run.advances, run.goffsets, cast(ABC*)abc.ptr); |
| 3063 run.width = abc[0] + abc[1] + abc[2]; | |
| 3064 TextStyle style = run.style; | |
| 3065 if (style !is null) { | |
| 3066 OUTLINETEXTMETRIC* lotm = null; | |
| 3067 if (style.underline || style.strikeout) { | |
| 3068 lotm = new OUTLINETEXTMETRIC(); | |
| 3069 if (OS.GetOutlineTextMetrics(hdc, OUTLINETEXTMETRIC.sizeof, lotm) is 0) { | |
| 3070 lotm = null; | |
| 3071 } | |
| 3072 } | |
| 3073 if (style.metrics !is null) { | |
| 3074 GlyphMetrics metrics = style.metrics; | |
| 3075 /* | |
| 3076 * Bug in Windows, on a Japanese machine, Uniscribe returns glyphcount | |
| 3077 * equals zero for FFFC (possibly other unicode code points), the fix | |
| 3078 * is to make sure the glyph is at least one pixel wide. | |
| 3079 */ | |
| 3080 run.width = metrics.width * Math.max (1, run.glyphCount); | |
| 3081 run.ascent = metrics.ascent; | |
| 3082 run.descent = metrics.descent; | |
| 3083 run.leading = 0; | |
| 3084 } else { | |
| 3085 TEXTMETRIC lptm; | |
| 3086 if (lotm !is null) { | |
| 3087 lptm = lotm.otmTextMetrics; | |
| 3088 } else { | |
| 3089 lptm = TEXTMETRIC.init; | |
| 3090 OS.GetTextMetrics(hdc, &lptm); | |
| 3091 } | |
| 3092 run.ascent = lptm.tmAscent; | |
| 3093 run.descent = lptm.tmDescent; | |
| 3094 run.leading = lptm.tmInternalLeading; | |
| 3095 } | |
| 3096 if (lotm !is null) { | |
| 3097 run.underlinePos = lotm.otmsUnderscorePosition; | |
| 3098 run.underlineThickness = Math.max(1, lotm.otmsUnderscoreSize); | |
| 3099 run.strikeoutPos = lotm.otmsStrikeoutPosition; | |
| 3100 run.strikeoutThickness = Math.max(1, lotm.otmsStrikeoutSize); | |
| 3101 } else { | |
| 3102 run.underlinePos = 1; | |
| 3103 run.underlineThickness = 1; | |
| 3104 run.strikeoutPos = run.ascent / 2; | |
| 3105 run.strikeoutThickness = 1; | |
| 3106 } | |
| 3107 run.ascent += style.rise; | |
| 3108 run.descent -= style.rise; | |
| 29 | 3109 } else { |
| 3110 TEXTMETRIC lptm; | |
| 3111 OS.GetTextMetrics(hdc, &lptm); | |
| 3112 run.ascent = lptm.tmAscent; | |
| 3113 run.descent = lptm.tmDescent; | |
| 3114 run.leading = lptm.tmInternalLeading; | |
| 3115 } | |
| 3116 } | |
| 3117 | |
| 3118 int validadeOffset(int offset, int step) { | |
| 323 | 3119 offset = segmentsText.toAbsoluteCodePointStartOffset( offset ); |
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3120 offset += segmentsText.getRelativeCodePointOffset( offset, step ); |
| 29 | 3121 if (segments !is null && segments.length > 2) { |
| 3122 for (int i = 0; i < segments.length; i++) { | |
| 3123 if (translateOffset(segments[i]) - 1 is offset) { | |
| 3124 offset += step; | |
| 3125 break; | |
| 3126 } | |
| 3127 } | |
| 3128 } | |
| 3129 return offset; | |
| 3130 } | |
| 3131 | |
| 3132 /** | |
| 3133 * Returns a string containing a concise, human-readable | |
| 3134 * description of the receiver. | |
| 3135 * | |
| 3136 * @return a string representation of the receiver | |
| 3137 */ | |
|
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|
3138 override public String toString () { |
| 29 | 3139 if (isDisposed()) return "TextLayout {*DISPOSED*}"; |
| 3140 return "TextLayout {}"; | |
| 3141 } | |
| 3142 | |
| 3143 int translateOffset(int offset) { | |
| 3144 if (segments is null) return offset; | |
| 3145 int nSegments = segments.length; | |
| 3146 if (nSegments <= 1) return offset; | |
| 227 | 3147 int length = text.length; |
| 3148 if (length is 0) return offset; | |
| 29 | 3149 if (nSegments is 2) { |
| 227 | 3150 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3151 } |
| 3152 for (int i = 0; i < nSegments && offset - i >= segments[i]; i++) { | |
|
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parents:
249
diff
changeset
|
3153 offset+=MARK_SIZE; |
| 29 | 3154 } |
| 3155 return offset; | |
| 3156 } | |
| 3157 | |
| 3158 int untranslateOffset(int offset) { | |
| 3159 if (segments is null) return offset; | |
| 3160 int nSegments = segments.length; | |
| 3161 if (nSegments <= 1) return offset; | |
| 227 | 3162 int length = text.length; |
| 3163 if (length is 0) return offset; | |
| 29 | 3164 if (nSegments is 2) { |
| 227 | 3165 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3166 } |
| 3167 for (int i = 0; i < nSegments && offset > segments[i]; i++) { | |
|
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249
diff
changeset
|
3168 offset-=MARK_SIZE; |
| 29 | 3169 } |
| 3170 return offset; | |
| 3171 } | |
| 3172 } |