Mercurial > projects > dwt-win
annotate dwt/graphics/TextLayout.d @ 288:af37dd280317
Fix: set SCRIPT_CACHE to zero
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 21 Aug 2008 16:08:55 +0200 |
| parents | 35d730fb5e9f |
| children | 1973f21c5c6f |
| 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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11 * Frank Benoit <benoit@tionex.de> |
| 29 | 12 *******************************************************************************/ |
| 13 module dwt.graphics.TextLayout; | |
| 14 | |
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15 import tango.util.log.Trace; |
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16 |
| 29 | 17 import dwt.DWT; |
| 18 import dwt.DWTException; | |
| 19 import dwt.internal.Compatibility; | |
| 20 import dwt.internal.gdip.Gdip; | |
| 213 | 21 |
| 29 | 22 import dwt.internal.win32.OS; |
| 23 | |
| 24 import dwt.graphics.Color; | |
| 25 import dwt.graphics.Device; | |
| 26 import dwt.graphics.Font; | |
| 27 import dwt.graphics.FontMetrics; | |
| 28 import dwt.graphics.GC; | |
| 29 import dwt.graphics.GCData; | |
| 30 import dwt.graphics.GlyphMetrics; | |
| 31 import dwt.graphics.Point; | |
| 32 import dwt.graphics.Rectangle; | |
| 33 import dwt.graphics.Region; | |
| 34 import dwt.graphics.Resource; | |
| 35 import dwt.graphics.TextStyle; | |
| 36 | |
| 37 import tango.text.convert.Format; | |
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38 import Utf = tango.text.convert.Utf; |
| 29 | 39 import dwt.dwthelper.utils; |
| 30 | 40 import dwt.dwthelper.System; |
| 29 | 41 |
| 227 | 42 |
| 29 | 43 /** |
| 44 * <code>TextLayout</code> is a graphic object that represents | |
| 45 * styled text. | |
| 46 * <p> | |
| 47 * Instances of this class provide support for drawing, cursor | |
| 48 * navigation, hit testing, text wrapping, alignment, tab expansion | |
| 49 * line breaking, etc. These are aspects required for rendering internationalized text. | |
| 50 * </p><p> | |
| 51 * Application code must explicitly invoke the <code>TextLayout#dispose()</code> | |
| 52 * method to release the operating system resources managed by each instance | |
| 53 * when those instances are no longer required. | |
| 54 * </p> | |
| 55 * | |
| 246 | 56 * @see <a href="http://www.eclipse.org/swt/snippets/#textlayout">TextLayout, TextStyle snippets</a> |
| 57 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: CustomControlExample, StyledText tab</a> | |
| 58 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
| 59 * | |
| 60 * @since 3.0 | |
| 29 | 61 */ |
| 62 public final class TextLayout : Resource { | |
| 227 | 63 |
| 213 | 64 alias Resource.init_ init_; |
| 65 | |
| 227 | 66 /++ |
| 229 | 67 + DWT doku |
| 68 + The styles has at minimum 2 member, each with a start. The last element is the end marker. | |
| 69 + | |
| 70 + invariant{ | |
| 71 + assert( stylesCount >= 2 ); | |
| 72 + assert( stylesCount <= styles.length ); | |
| 73 + assert( styles[stylesCount-1] ); | |
| 74 + assert( styles[stylesCount-1].start is text.length ); | |
| 75 + } | |
| 76 +/ | |
| 227 | 77 |
| 78 | |
| 29 | 79 Font font; |
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80 String text; |
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81 wchar[] wtext; |
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82 char[] segmentsText; |
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83 wchar[] segmentsWText; // DWT |
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84 int[] index8to16; // DWT |
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85 int[] index16to8; // DWT |
| 29 | 86 int lineSpacing; |
| 87 int ascent, descent; | |
| 88 int alignment; | |
| 89 int wrapWidth; | |
| 90 int orientation; | |
| 91 int indent; | |
| 92 bool justify; | |
| 93 int[] tabs; | |
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94 int[] segments; // indices in 'text' |
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95 int[] wsegments; // DWT indices in 'wtext' |
| 29 | 96 StyleItem[] styles; |
| 213 | 97 int stylesCount; |
| 29 | 98 |
| 99 StyleItem[] allRuns; | |
| 100 StyleItem[][] runs; | |
| 101 int[] lineOffset, lineY, lineWidth; | |
| 30 | 102 void* mLangFontLink2; |
| 29 | 103 |
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Fix: make MARK copy work correctly mit multiple chars.
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104 static const dchar LTR_MARK = '\u200E', RTL_MARK = '\u200F'; |
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105 static const wchar LTR_MARKw = '\u200E', RTL_MARKw = '\u200F'; |
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106 static const String STR_LTR_MARK = "\u200E", STR_RTL_MARK = "\u200F"; |
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107 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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108 static const int MARK_SIZE = 3; |
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109 static const int WMARK_SIZE = 1; |
| 29 | 110 static const int SCRIPT_VISATTR_SIZEOF = 2; |
| 111 static const int GOFFSET_SIZEOF = 8; | |
| 80 | 112 private static byte[16] CLSID_CMultiLanguage; |
| 113 private static byte[16] IID_IMLangFontLink2; | |
| 114 private static bool static_this_completed = false; | |
| 115 private static void static_this() { | |
| 116 // in case of allready initialized, we can check and leave without lock | |
| 117 if( static_this_completed ){ | |
| 118 return; | |
| 119 } | |
| 120 synchronized { | |
| 121 if( !static_this_completed ){ | |
| 122 OS.IIDFromString("{275c23e2-3747-11d0-9fea-00aa003f8646}\0".toCharArray().ptr, CLSID_CMultiLanguage.ptr); | |
| 123 OS.IIDFromString("{DCCFC162-2B38-11d2-B7EC-00C04F8F5D9A}\0".toCharArray().ptr, IID_IMLangFontLink2.ptr); | |
| 124 static_this_completed = true; | |
| 125 } | |
| 126 } | |
| 29 | 127 } |
| 128 | |
| 213 | 129 /* IME has a copy of these constants */ |
| 130 static const int UNDERLINE_IME_DOT = 1 << 16; | |
| 131 static const int UNDERLINE_IME_DASH = 2 << 16; | |
| 132 static const int UNDERLINE_IME_THICK = 3 << 16; | |
| 133 | |
| 29 | 134 class StyleItem { |
| 135 TextStyle style; | |
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136 // DWT: start, lenght relative to segmentsText |
| 29 | 137 int start, length; |
| 138 bool lineBreak, softBreak, tab; | |
| 139 | |
| 140 /*Script cache and analysis */ | |
| 141 SCRIPT_ANALYSIS analysis; | |
| 142 SCRIPT_CACHE* psc; | |
| 143 | |
| 144 /*Shape info (malloc when the run is shaped) */ | |
| 145 WORD* glyphs; | |
| 146 int glyphCount; | |
| 147 WORD* clusters; | |
| 148 SCRIPT_VISATTR* visAttrs; | |
| 149 | |
| 150 /*Place info (malloc when the run is placed) */ | |
| 151 int* advances; | |
| 30 | 152 GOFFSET* goffsets; |
| 153 int width; | |
| 154 int ascent; | |
| 155 int descent; | |
| 156 int leading; | |
| 157 int x; | |
| 213 | 158 int underlinePos, underlineThickness; |
| 159 int strikeoutPos, strikeoutThickness; | |
| 29 | 160 |
| 161 /* Justify info (malloc during computeRuns) */ | |
| 162 int* justify; | |
| 163 | |
| 164 /* ScriptBreak */ | |
| 165 SCRIPT_LOGATTR* psla; | |
| 166 | |
| 30 | 167 HFONT fallbackFont; |
| 29 | 168 |
| 169 void free() { | |
| 170 auto hHeap = OS.GetProcessHeap(); | |
| 171 if (psc !is null) { | |
| 172 OS.ScriptFreeCache (psc); | |
| 173 OS.HeapFree(hHeap, 0, psc); | |
| 174 psc = null; | |
| 175 } | |
| 176 if (glyphs !is null) { | |
| 177 OS.HeapFree(hHeap, 0, glyphs); | |
| 178 glyphs = null; | |
| 179 glyphCount = 0; | |
| 180 } | |
| 181 if (clusters !is null) { | |
| 182 OS.HeapFree(hHeap, 0, clusters); | |
| 183 clusters = null; | |
| 184 } | |
| 185 if (visAttrs !is null) { | |
| 186 OS.HeapFree(hHeap, 0, visAttrs); | |
| 187 visAttrs = null; | |
| 188 } | |
| 189 if (advances !is null) { | |
| 190 OS.HeapFree(hHeap, 0, advances); | |
| 191 advances = null; | |
| 192 } | |
| 193 if (goffsets !is null) { | |
| 194 OS.HeapFree(hHeap, 0, goffsets); | |
| 195 goffsets = null; | |
| 196 } | |
| 197 if (justify !is null) { | |
| 198 OS.HeapFree(hHeap, 0, justify); | |
| 199 justify = null; | |
| 200 } | |
| 201 if (psla !is null) { | |
| 202 OS.HeapFree(hHeap, 0, psla); | |
| 203 psla = null; | |
| 204 } | |
| 205 if (fallbackFont !is null) { | |
| 246 | 206 OS.DeleteObject(fallbackFont); |
| 29 | 207 fallbackFont = null; |
| 208 } | |
| 30 | 209 width = 0; |
| 210 ascent = 0; | |
| 211 descent = 0; | |
| 212 x = 0; | |
| 29 | 213 lineBreak = softBreak = false; |
| 214 } | |
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215 override public String toString () { |
| 29 | 216 return Format( "StyleItem {{{}, {}}", start, style ); |
| 217 } | |
| 218 } | |
| 219 | |
| 220 /** | |
| 221 * Constructs a new instance of this class on the given device. | |
| 222 * <p> | |
| 223 * You must dispose the text layout when it is no longer required. | |
| 224 * </p> | |
| 225 * | |
| 226 * @param device the device on which to allocate the text layout | |
| 227 * | |
| 228 * @exception IllegalArgumentException <ul> | |
| 229 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 230 * </ul> | |
| 231 * | |
| 232 * @see #dispose() | |
| 233 */ | |
| 234 public this (Device device) { | |
| 80 | 235 static_this(); |
| 213 | 236 super(device); |
| 29 | 237 wrapWidth = ascent = descent = -1; |
| 238 lineSpacing = 0; | |
| 239 orientation = DWT.LEFT_TO_RIGHT; | |
| 240 styles = new StyleItem[2]; | |
| 241 styles[0] = new StyleItem(); | |
| 242 styles[1] = new StyleItem(); | |
| 213 | 243 stylesCount = 2; |
| 29 | 244 text = ""; //$NON-NLS-1$ |
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245 wtext = ""w; |
| 30 | 246 void* ppv; |
| 247 OS.OleInitialize(null); | |
| 248 if (OS.CoCreateInstance(CLSID_CMultiLanguage.ptr, null, OS.CLSCTX_INPROC_SERVER, IID_IMLangFontLink2.ptr, cast(void*)&ppv) is OS.S_OK) { | |
| 249 mLangFontLink2 = ppv; | |
| 29 | 250 } |
| 213 | 251 init_(); |
| 29 | 252 } |
| 253 | |
| 254 void breakRun(StyleItem run) { | |
| 30 | 255 if (run.psla !is null) return; |
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256 wchar[] chars = segmentsWText[ index8to16[ run.start ] .. index8to16[ run.start + run.length ] ]; |
| 30 | 257 auto hHeap = OS.GetProcessHeap(); |
| 258 run.psla = cast(SCRIPT_LOGATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_LOGATTR.sizeof * chars.length); | |
| 259 if (run.psla is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 260 OS.ScriptBreak(chars.ptr, chars.length, &run.analysis, run.psla); | |
| 29 | 261 } |
| 262 | |
| 263 void checkLayout () { | |
| 264 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); | |
| 265 } | |
| 266 | |
| 267 /* | |
| 268 * Compute the runs: itemize, shape, place, and reorder the runs. | |
| 269 * Break paragraphs into lines, wraps the text, and initialize caches. | |
| 270 */ | |
| 271 void computeRuns (GC gc) { | |
| 272 if (runs !is null) return; | |
| 30 | 273 auto hDC = gc !is null ? gc.handle : device.internal_new_GC(null); |
| 274 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 275 allRuns = itemize(); |
| 276 for (int i=0; i<allRuns.length - 1; i++) { | |
| 277 StyleItem run = allRuns[i]; | |
| 278 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 279 shape(srcHdc, run); | |
| 280 } | |
| 30 | 281 SCRIPT_LOGATTR* logAttr; |
| 282 SCRIPT_PROPERTIES* properties; | |
| 29 | 283 int lineWidth = indent, lineStart = 0, lineCount = 1; |
| 284 for (int i=0; i<allRuns.length - 1; i++) { | |
| 285 StyleItem run = allRuns[i]; | |
| 286 if (run.length is 1) { | |
| 287 char ch = segmentsText.charAt(run.start); | |
| 288 switch (ch) { | |
| 289 case '\t': { | |
| 290 run.tab = true; | |
| 291 if (tabs is null) break; | |
| 292 int tabsLength = tabs.length, j; | |
| 293 for (j = 0; j < tabsLength; j++) { | |
| 294 if (tabs[j] > lineWidth) { | |
| 295 run.width = tabs[j] - lineWidth; | |
| 296 break; | |
| 297 } | |
| 298 } | |
| 299 if (j is tabsLength) { | |
| 300 int tabX = tabs[tabsLength-1]; | |
| 301 int lastTabWidth = tabsLength > 1 ? tabs[tabsLength-1] - tabs[tabsLength-2] : tabs[0]; | |
| 302 if (lastTabWidth > 0) { | |
| 303 while (tabX <= lineWidth) tabX += lastTabWidth; | |
| 304 run.width = tabX - lineWidth; | |
| 305 } | |
| 306 } | |
| 307 break; | |
| 308 } | |
| 309 case '\n': { | |
| 310 run.lineBreak = true; | |
| 311 break; | |
| 312 } | |
| 313 case '\r': { | |
| 314 run.lineBreak = true; | |
| 315 StyleItem next = allRuns[i + 1]; | |
| 316 if (next.length !is 0 && segmentsText.charAt(next.start) is '\n') { | |
| 317 run.length += 1; | |
| 318 next.free(); | |
| 246 | 319 StyleItem[] newAllRuns = new StyleItem[allRuns.length - 1]; |
| 320 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 321 System.arraycopy(allRuns, i + 2, newAllRuns, i + 1, allRuns.length - i - 2); | |
| 322 allRuns = newAllRuns; | |
| 29 | 323 } |
| 324 break; | |
| 325 } | |
| 81 | 326 default: |
| 29 | 327 } |
| 328 } | |
| 329 if (wrapWidth !is -1 && lineWidth + run.width > wrapWidth && !run.tab) { | |
| 330 int start = 0; | |
| 331 int[] piDx = new int[run.length]; | |
| 332 if (run.style !is null && run.style.metrics !is null) { | |
| 333 piDx[0] = run.width; | |
| 334 } else { | |
| 30 | 335 OS.ScriptGetLogicalWidths(&run.analysis, run.length, run.glyphCount, run.advances, run.clusters, run.visAttrs, piDx.ptr); |
| 29 | 336 } |
| 337 int width = 0, maxWidth = wrapWidth - lineWidth; | |
| 338 while (width + piDx[start] < maxWidth) { | |
| 339 width += piDx[start++]; | |
| 340 } | |
| 341 int firstStart = start; | |
| 342 int firstIndice = i; | |
| 343 while (i >= lineStart) { | |
| 344 breakRun(run); | |
| 345 while (start >= 0) { | |
| 30 | 346 logAttr = run.psla + start; |
| 347 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 348 if (logAttr.fSoftBreak || logAttr.fWhiteSpace) break; |
| 349 start--; | |
| 350 } | |
| 351 | |
| 352 /* | |
| 353 * Bug in Windows. For some reason Uniscribe sets the fSoftBreak flag for the first letter | |
| 354 * after a letter with an accent. This cause a break line to be set in the middle of a word. | |
| 355 * The fix is to detect the case and ignore fSoftBreak forcing the algorithm keep searching. | |
| 356 */ | |
| 357 if (start is 0 && i !is lineStart && !run.tab) { | |
| 358 if (logAttr.fSoftBreak && !logAttr.fWhiteSpace) { | |
| 30 | 359 properties = device.scripts[run.analysis.eScript]; |
| 360 //OS.MoveMemory(properties, device.scripts[run.analysis.eScript], SCRIPT_PROPERTIES.sizeof); | |
| 29 | 361 int langID = properties.langid; |
| 362 StyleItem pRun = allRuns[i - 1]; | |
| 30 | 363 //OS.MoveMemory(properties, device.scripts[pRun.analysis.eScript], SCRIPT_PROPERTIES.sizeof); |
| 29 | 364 if (properties.langid is langID || langID is OS.LANG_NEUTRAL || properties.langid is OS.LANG_NEUTRAL) { |
| 365 breakRun(pRun); | |
| 30 | 366 logAttr = pRun.psla + (pRun.length - 1); |
| 367 //OS.MoveMemory(logAttr, pRun.psla + ((pRun.length - 1) * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 368 if (!logAttr.fWhiteSpace) start = -1; |
| 369 } | |
| 370 } | |
| 371 } | |
| 372 if (start >= 0 || i is lineStart) break; | |
| 373 run = allRuns[--i]; | |
| 374 start = run.length - 1; | |
| 375 } | |
| 376 if (start is 0 && i !is lineStart && !run.tab) { | |
| 377 run = allRuns[--i]; | |
| 378 } else if (start <= 0 && i is lineStart) { | |
| 213 | 379 if (lineWidth is wrapWidth && firstIndice > 0) { |
| 380 i = firstIndice - 1; | |
| 381 run = allRuns[i]; | |
| 382 start = run.length; | |
| 383 } else { | |
| 384 i = firstIndice; | |
| 385 run = allRuns[i]; | |
| 386 start = Math.max(1, firstStart); | |
| 387 } | |
| 29 | 388 } |
| 389 breakRun(run); | |
| 390 while (start < run.length) { | |
| 30 | 391 logAttr = run.psla + start; |
| 392 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 393 if (!logAttr.fWhiteSpace) break; |
| 394 start++; | |
| 395 } | |
| 396 if (0 < start && start < run.length) { | |
| 397 StyleItem newRun = new StyleItem(); | |
| 398 newRun.start = run.start + start; | |
| 399 newRun.length = run.length - start; | |
| 400 newRun.style = run.style; | |
| 246 | 401 newRun.analysis = cloneScriptAnalysis(run.analysis); |
| 29 | 402 run.free(); |
| 403 run.length = start; | |
| 404 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 246 | 405 run.analysis.fNoGlyphIndex = false; |
| 29 | 406 shape (srcHdc, run); |
| 407 OS.SelectObject(srcHdc, getItemFont(newRun)); | |
| 246 | 408 newRun.analysis.fNoGlyphIndex = false; |
| 29 | 409 shape (srcHdc, newRun); |
| 410 StyleItem[] newAllRuns = new StyleItem[allRuns.length + 1]; | |
| 411 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 412 System.arraycopy(allRuns, i + 1, newAllRuns, i + 2, allRuns.length - i - 1); | |
| 413 allRuns = newAllRuns; | |
| 414 allRuns[i + 1] = newRun; | |
| 415 } | |
| 416 if (i !is allRuns.length - 2) { | |
| 417 run.softBreak = run.lineBreak = true; | |
| 418 } | |
| 419 } | |
| 420 lineWidth += run.width; | |
| 421 if (run.lineBreak) { | |
| 422 lineStart = i + 1; | |
| 423 lineWidth = run.softBreak ? 0 : indent; | |
| 424 lineCount++; | |
| 425 } | |
| 426 } | |
| 427 lineWidth = 0; | |
| 30 | 428 runs = new StyleItem[][](lineCount); |
| 29 | 429 lineOffset = new int[lineCount + 1]; |
| 430 lineY = new int[lineCount + 1]; | |
| 431 this.lineWidth = new int[lineCount]; | |
| 432 int lineRunCount = 0, line = 0; | |
| 433 int ascent = Math.max(0, this.ascent); | |
| 434 int descent = Math.max(0, this.descent); | |
| 435 StyleItem[] lineRuns = new StyleItem[allRuns.length]; | |
| 436 for (int i=0; i<allRuns.length; i++) { | |
| 437 StyleItem run = allRuns[i]; | |
| 438 lineRuns[lineRunCount++] = run; | |
| 439 lineWidth += run.width; | |
| 440 ascent = Math.max(ascent, run.ascent); | |
| 441 descent = Math.max(descent, run.descent); | |
| 442 if (run.lineBreak || i is allRuns.length - 1) { | |
| 443 /* Update the run metrics if the last run is a hard break. */ | |
| 444 if (lineRunCount is 1 && i is allRuns.length - 1) { | |
| 445 TEXTMETRIC lptm; | |
| 446 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 447 OS.GetTextMetrics(srcHdc, &lptm); | |
| 448 run.ascent = lptm.tmAscent; | |
| 449 run.descent = lptm.tmDescent; | |
| 450 ascent = Math.max(ascent, run.ascent); | |
| 451 descent = Math.max(descent, run.descent); | |
| 452 } | |
| 453 runs[line] = new StyleItem[lineRunCount]; | |
| 454 System.arraycopy(lineRuns, 0, runs[line], 0, lineRunCount); | |
| 455 | |
| 456 if (justify && wrapWidth !is -1 && run.softBreak && lineWidth > 0) { | |
| 457 if (line is 0) { | |
| 458 lineWidth += indent; | |
| 459 } else { | |
| 460 StyleItem[] previousLine = runs[line - 1]; | |
| 461 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 462 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 463 lineWidth += indent; | |
| 464 } | |
| 465 } | |
| 30 | 466 auto hHeap = OS.GetProcessHeap(); |
| 29 | 467 int newLineWidth = 0; |
| 468 for (int j = 0; j < runs[line].length; j++) { | |
| 469 StyleItem item = runs[line][j]; | |
| 470 int iDx = item.width * wrapWidth / lineWidth; | |
| 471 if (iDx !is item.width) { | |
| 30 | 472 item.justify = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, item.glyphCount * 4); |
| 473 if (item.justify is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 474 OS.ScriptJustify(item.visAttrs, item.advances, item.glyphCount, iDx - item.width, 2, item.justify); |
| 475 item.width = iDx; | |
| 476 } | |
| 477 newLineWidth += item.width; | |
| 478 } | |
| 479 lineWidth = newLineWidth; | |
| 480 } | |
| 481 this.lineWidth[line] = lineWidth; | |
| 482 | |
| 483 StyleItem lastRun = runs[line][lineRunCount - 1]; | |
| 484 int lastOffset = lastRun.start + lastRun.length; | |
| 485 runs[line] = reorder(runs[line], i is allRuns.length - 1); | |
| 486 lastRun = runs[line][lineRunCount - 1]; | |
| 487 if (run.softBreak && run !is lastRun) { | |
| 488 run.softBreak = run.lineBreak = false; | |
| 489 lastRun.softBreak = lastRun.lineBreak = true; | |
| 490 } | |
| 491 | |
| 492 lineWidth = getLineIndent(line); | |
| 493 for (int j = 0; j < runs[line].length; j++) { | |
| 494 runs[line][j].x = lineWidth; | |
| 495 lineWidth += runs[line][j].width; | |
| 496 } | |
| 497 line++; | |
| 498 lineY[line] = lineY[line - 1] + ascent + descent + lineSpacing; | |
| 499 lineOffset[line] = lastOffset; | |
| 500 lineRunCount = lineWidth = 0; | |
| 501 ascent = Math.max(0, this.ascent); | |
| 502 descent = Math.max(0, this.descent); | |
| 503 } | |
| 504 } | |
| 30 | 505 if (srcHdc !is null) OS.DeleteDC(srcHdc); |
| 29 | 506 if (gc is null) device.internal_dispose_GC(hDC, null); |
| 507 } | |
| 508 | |
| 213 | 509 void destroy () { |
| 29 | 510 freeRuns(); |
| 511 font = null; | |
| 512 text = null; | |
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513 wtext = null; |
| 29 | 514 segmentsText = null; |
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515 segmentsWText = null; |
| 29 | 516 tabs = null; |
| 517 styles = null; | |
| 518 runs = null; | |
| 519 lineOffset = null; | |
| 520 lineY = null; | |
| 521 lineWidth = null; | |
| 30 | 522 if (mLangFontLink2 !is null) { |
| 29 | 523 /* Release() */ |
| 524 OS.VtblCall(2, mLangFontLink2); | |
| 30 | 525 mLangFontLink2 = null; |
| 29 | 526 } |
| 527 OS.OleUninitialize(); | |
| 528 } | |
| 529 | |
| 249 | 530 SCRIPT_ANALYSIS cloneScriptAnalysis ( inout SCRIPT_ANALYSIS src) { |
| 531 SCRIPT_ANALYSIS dst; | |
| 246 | 532 dst.eScript = src.eScript; |
| 533 dst.fRTL = src.fRTL; | |
| 534 dst.fLayoutRTL = src.fLayoutRTL; | |
| 535 dst.fLinkBefore = src.fLinkBefore; | |
| 536 dst.fLinkAfter = src.fLinkAfter; | |
| 537 dst.fLogicalOrder = src.fLogicalOrder; | |
| 538 dst.fNoGlyphIndex = src.fNoGlyphIndex; | |
| 539 dst.s.uBidiLevel = src.s.uBidiLevel; | |
| 540 dst.s.fOverrideDirection = src.s.fOverrideDirection; | |
| 541 dst.s.fInhibitSymSwap = src.s.fInhibitSymSwap; | |
| 542 dst.s.fCharShape = src.s.fCharShape; | |
| 543 dst.s.fDigitSubstitute = src.s.fDigitSubstitute; | |
| 544 dst.s.fInhibitLigate = src.s.fInhibitLigate; | |
| 545 dst.s.fDisplayZWG = src.s.fDisplayZWG; | |
| 546 dst.s.fArabicNumContext = src.s.fArabicNumContext; | |
| 547 dst.s.fGcpClusters = src.s.fGcpClusters; | |
| 548 dst.s.fReserved = src.s.fReserved; | |
| 549 dst.s.fEngineReserved = src.s.fEngineReserved; | |
| 550 return dst; | |
| 551 } | |
| 552 | |
| 29 | 553 /** |
| 554 * Draws the receiver's text using the specified GC at the specified | |
| 555 * point. | |
| 556 * | |
| 557 * @param gc the GC to draw | |
| 558 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 559 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 560 * | |
| 561 * @exception DWTException <ul> | |
| 562 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 563 * </ul> | |
| 564 * @exception IllegalArgumentException <ul> | |
| 565 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 566 * </ul> | |
| 567 */ | |
| 568 public void draw (GC gc, int x, int y) { | |
| 569 draw(gc, x, y, -1, -1, null, null); | |
| 570 } | |
| 571 | |
| 572 /** | |
| 573 * Draws the receiver's text using the specified GC at the specified | |
| 574 * point. | |
| 575 * | |
| 576 * @param gc the GC to draw | |
| 577 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 578 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 579 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 580 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 581 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 582 * @param selectionBackground selection background, or NULL to use the system default color | |
| 583 * | |
| 584 * @exception DWTException <ul> | |
| 585 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 586 * </ul> | |
| 587 * @exception IllegalArgumentException <ul> | |
| 588 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 589 * </ul> | |
| 590 */ | |
| 591 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground) { | |
| 592 draw(gc, x, y, selectionStart, selectionEnd, selectionForeground, selectionBackground, 0); | |
| 593 } | |
| 594 | |
| 595 /** | |
| 596 * Draws the receiver's text using the specified GC at the specified | |
| 597 * point. | |
| 598 * <p> | |
| 599 * The parameter <code>flags</code> can include one of <code>DWT.DELIMITER_SELECTION</code> | |
| 600 * or <code>DWT.FULL_SELECTION</code> to specify the selection behavior on all lines except | |
| 601 * for the last line, and can also include <code>DWT.LAST_LINE_SELECTION</code> to extend | |
| 602 * the specified selection behavior to the last line. | |
| 603 * </p> | |
| 604 * @param gc the GC to draw | |
| 605 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 606 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 607 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 608 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 609 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 610 * @param selectionBackground selection background, or NULL to use the system default color | |
| 611 * @param flags drawing options | |
| 612 * | |
| 613 * @exception DWTException <ul> | |
| 614 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 615 * </ul> | |
| 616 * @exception IllegalArgumentException <ul> | |
| 617 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 618 * </ul> | |
| 619 * | |
| 620 * @since 3.3 | |
| 621 */ | |
| 622 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground, int flags) { | |
| 623 checkLayout(); | |
| 624 computeRuns(gc); | |
| 625 if (gc is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 626 if (gc.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 627 if (selectionForeground !is null && selectionForeground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 628 if (selectionBackground !is null && selectionBackground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 30 | 629 int length = text.length; |
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630 int wlength = wtext.length; |
| 29 | 631 if (length is 0 && flags is 0) return; |
| 30 | 632 auto hdc = gc.handle; |
| 29 | 633 Rectangle clip = gc.getClipping(); |
| 634 GCData data = gc.data; | |
| 30 | 635 auto gdipGraphics = data.gdipGraphics; |
| 636 auto foreground = data.foreground; | |
| 637 auto alpha = data.alpha; | |
| 638 bool gdip = gdipGraphics !is null && (alpha !is 0xFF || data.foregroundPattern !is null); | |
| 639 HRGN clipRgn; | |
| 29 | 640 float[] lpXform = null; |
| 30 | 641 Gdip.Rect gdipRect; |
| 642 if (gdipGraphics !is null && !gdip) { | |
| 643 auto matrix = Gdip.Matrix_new(1, 0, 0, 1, 0, 0); | |
| 644 if (matrix is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 645 Gdip.Graphics_GetTransform(gdipGraphics, matrix); |
| 30 | 646 auto identity_ = gc.identity(); |
| 647 Gdip.Matrix_Invert(identity_); | |
| 648 Gdip.Matrix_Multiply(matrix, identity_, Gdip.MatrixOrderAppend); | |
| 649 Gdip.Matrix_delete(identity_); | |
| 29 | 650 if (!Gdip.Matrix_IsIdentity(matrix)) { |
| 651 lpXform = new float[6]; | |
| 213 | 652 Gdip.Matrix_GetElements(matrix, lpXform.ptr); |
| 29 | 653 } |
| 654 Gdip.Matrix_delete(matrix); | |
| 655 if ((data.style & DWT.MIRRORED) !is 0 && lpXform !is null) { | |
| 656 gdip = true; | |
| 657 lpXform = null; | |
| 658 } else { | |
| 659 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeNone); | |
| 30 | 660 auto rgn = Gdip.Region_new(); |
| 29 | 661 Gdip.Graphics_GetClip(gdipGraphics, rgn); |
| 662 if (!Gdip.Region_IsInfinite(rgn, gdipGraphics)) { | |
| 663 clipRgn = Gdip.Region_GetHRGN(rgn, gdipGraphics); | |
| 664 } | |
| 665 Gdip.Region_delete(rgn); | |
| 666 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeHalf); | |
| 667 hdc = Gdip.Graphics_GetHDC(gdipGraphics); | |
| 668 } | |
| 669 } | |
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670 Gdip.Brush foregroundBrush; |
| 30 | 671 int state = 0; |
| 29 | 672 if (gdip) { |
| 673 gc.checkGC(GC.FOREGROUND); | |
| 674 foregroundBrush = gc.getFgBrush(); | |
| 675 } else { | |
| 676 state = OS.SaveDC(hdc); | |
| 677 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 678 OS.SetLayout(hdc, OS.GetLayout(hdc) | OS.LAYOUT_RTL); | |
| 679 } | |
| 680 if (lpXform !is null) { | |
| 681 OS.SetGraphicsMode(hdc, OS.GM_ADVANCED); | |
| 30 | 682 OS.SetWorldTransform(hdc, cast(XFORM*)lpXform.ptr); |
| 29 | 683 } |
| 30 | 684 if (clipRgn !is null) { |
| 29 | 685 OS.SelectClipRgn(hdc, clipRgn); |
| 686 OS.DeleteObject(clipRgn); | |
| 687 } | |
| 688 } | |
| 689 bool hasSelection = selectionStart <= selectionEnd && selectionStart !is -1 && selectionEnd !is -1; | |
| 690 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 691 selectionStart = Math.min(Math.max(0, selectionStart), length - 1); | |
| 692 selectionEnd = Math.min(Math.max(0, selectionEnd), length - 1); | |
| 693 if (selectionForeground is null) selectionForeground = device.getSystemColor(DWT.COLOR_LIST_SELECTION_TEXT); | |
| 694 if (selectionBackground is null) selectionBackground = device.getSystemColor(DWT.COLOR_LIST_SELECTION); | |
| 695 selectionStart = translateOffset(selectionStart); | |
| 696 selectionEnd = translateOffset(selectionEnd); | |
| 697 } | |
| 30 | 698 RECT rect; |
| 213 | 699 Gdip.Brush selBrush; |
| 700 Gdip.Pen selPen; | |
| 701 Gdip.Brush selBrushFg; | |
| 30 | 702 |
| 29 | 703 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { |
| 704 if (gdip) { | |
| 30 | 705 auto bg = selectionBackground.handle; |
| 706 auto argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 707 auto color = Gdip.Color_new(argb); | |
| 213 | 708 selBrush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 709 Gdip.Color_delete(color); |
| 30 | 710 auto fg = selectionForeground.handle; |
| 29 | 711 argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 712 color = Gdip.Color_new(argb); | |
| 213 | 713 selBrushFg = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 714 selPen = cast(Gdip.Pen) Gdip.Pen_new( cast(Gdip.Brush)selBrushFg, 1); | |
| 29 | 715 Gdip.Color_delete(color); |
| 716 } else { | |
| 213 | 717 selBrush = cast(Gdip.Brush)OS.CreateSolidBrush(selectionBackground.handle); |
| 718 selPen = cast(Gdip.Pen)OS.CreatePen(OS.PS_SOLID, 1, selectionForeground.handle); | |
| 29 | 719 } |
| 720 } | |
| 721 int offset = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? -1 : 0; | |
| 722 OS.SetBkMode(hdc, OS.TRANSPARENT); | |
| 723 for (int line=0; line<runs.length; line++) { | |
| 724 int drawX = x + getLineIndent(line); | |
| 725 int drawY = y + lineY[line]; | |
| 726 StyleItem[] lineRuns = runs[line]; | |
| 213 | 727 int lineHeight = lineY[line+1] - lineY[line] - lineSpacing; |
| 29 | 728 if (flags !is 0 && (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0)) { |
| 729 bool extents = false; | |
| 730 if (line is runs.length - 1 && (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 731 extents = true; | |
| 732 } else { | |
| 733 StyleItem run = lineRuns[lineRuns.length - 1]; | |
| 734 if (run.lineBreak && !run.softBreak) { | |
| 735 if (selectionStart <= run.start && run.start <= selectionEnd) extents = true; | |
| 736 } else { | |
| 737 int endOffset = run.start + run.length - 1; | |
| 738 if (selectionStart <= endOffset && endOffset < selectionEnd && (flags & DWT.FULL_SELECTION) !is 0) { | |
| 739 extents = true; | |
| 740 } | |
| 741 } | |
| 742 } | |
| 743 if (extents) { | |
| 744 int width; | |
| 745 if ((flags & DWT.FULL_SELECTION) !is 0) { | |
| 746 width = OS.IsWin95 ? 0x7FFF : 0x6FFFFFF; | |
| 747 } else { | |
| 213 | 748 width = lineHeight / 3; |
| 29 | 749 } |
| 750 if (gdip) { | |
| 213 | 751 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX + lineWidth[line], drawY, width, lineHeight); |
| 29 | 752 } else { |
| 753 OS.SelectObject(hdc, selBrush); | |
| 213 | 754 OS.PatBlt(hdc, drawX + lineWidth[line], drawY, width, lineHeight, OS.PATCOPY); |
| 29 | 755 } |
| 756 } | |
| 757 } | |
| 758 if (drawX > clip.x + clip.width) continue; | |
| 759 if (drawX + lineWidth[line] < clip.x) continue; | |
| 760 int baseline = Math.max(0, this.ascent); | |
| 213 | 761 int lineUnderlinePos = 0; |
| 29 | 762 for (int i = 0; i < lineRuns.length; i++) { |
| 763 baseline = Math.max(baseline, lineRuns[i].ascent); | |
| 213 | 764 lineUnderlinePos = Math.min(lineUnderlinePos, lineRuns[i].underlinePos); |
| 29 | 765 } |
| 766 int alignmentX = drawX; | |
| 767 for (int i = 0; i < lineRuns.length; i++) { | |
| 768 StyleItem run = lineRuns[i]; | |
| 769 if (run.length is 0) continue; | |
| 770 if (drawX > clip.x + clip.width) break; | |
| 771 if (drawX + run.width >= clip.x) { | |
| 772 if (!run.lineBreak || run.softBreak) { | |
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773 int end = segmentsText.getAbsoluteCodePointOffset( run.start + run.length, -1 ); |
| 29 | 774 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; |
| 775 if (fullSelection) { | |
| 776 if (gdip) { | |
| 213 | 777 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX, drawY, run.width, lineHeight); |
| 29 | 778 } else { |
| 779 OS.SelectObject(hdc, selBrush); | |
| 213 | 780 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 781 } |
| 782 } else { | |
| 783 if (run.style !is null && run.style.background !is null) { | |
| 30 | 784 auto bg = run.style.background.handle; |
| 29 | 785 if (gdip) { |
| 786 int argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 30 | 787 auto color = Gdip.Color_new(argb); |
| 788 auto brush = Gdip.SolidBrush_new(color); | |
| 213 | 789 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)brush, drawX, drawY, run.width, lineHeight); |
| 29 | 790 Gdip.Color_delete(color); |
| 791 Gdip.SolidBrush_delete(brush); | |
| 792 } else { | |
| 30 | 793 auto hBrush = OS.CreateSolidBrush (bg); |
| 794 auto oldBrush = OS.SelectObject(hdc, hBrush); | |
| 213 | 795 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 796 OS.SelectObject(hdc, oldBrush); |
| 797 OS.DeleteObject(hBrush); | |
| 798 } | |
| 799 } | |
| 800 bool partialSelection = hasSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 801 if (partialSelection) { | |
| 802 int selStart = Math.max(selectionStart, run.start) - run.start; | |
| 803 int selEnd = Math.min(selectionEnd, end) - run.start; | |
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804 int cChars = index8to16[run.start+run.length] - index8to16[run.start]; // make it wchar |
| 29 | 805 int gGlyphs = run.glyphCount; |
| 30 | 806 int piX; |
| 807 int* advances = run.justify !is null ? run.justify : run.advances; | |
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808 OS.ScriptCPtoX(index8to16[selStart], false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 30 | 809 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; |
| 29 | 810 rect.left = drawX + runX; |
| 811 rect.top = drawY; | |
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812 OS.ScriptCPtoX(index8to16[selEnd], true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 30 | 813 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; |
| 29 | 814 rect.right = drawX + runX; |
| 213 | 815 rect.bottom = drawY + lineHeight; |
| 29 | 816 if (gdip) { |
| 213 | 817 if (rect.left > rect.right) { |
| 818 int tmp = rect.left; | |
| 819 rect.left = rect.right; | |
| 820 rect.right = tmp; | |
| 821 } | |
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822 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); |
| 29 | 823 } else { |
| 824 OS.SelectObject(hdc, selBrush); | |
| 825 OS.PatBlt(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); | |
| 826 } | |
| 827 } | |
| 828 } | |
| 829 } | |
| 830 } | |
| 831 drawX += run.width; | |
| 832 } | |
| 213 | 833 RECT* borderClip = null; |
| 29 | 834 drawX = alignmentX; |
| 835 for (int i = 0; i < lineRuns.length; i++) { | |
| 836 StyleItem run = lineRuns[i]; | |
| 837 if (run.length is 0) continue; | |
| 838 if (drawX > clip.x + clip.width) break; | |
| 839 if (drawX + run.width >= clip.x) { | |
| 840 if (!run.tab && (!run.lineBreak || run.softBreak) && !(run.style !is null && run.style.metrics !is null)) { | |
| 841 int end = run.start + run.length - 1; | |
| 842 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 843 bool partialSelection = hasSelection && !fullSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 844 OS.SelectObject(hdc, getItemFont(run)); | |
| 845 int drawRunY = drawY + (baseline - run.ascent); | |
| 846 if (partialSelection) { | |
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847 int selStart = Math.max(index8to16[selectionStart], index8to16[run.start]) - index8to16[run.start]; |
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848 int selEnd = Math.min(index8to16[selectionEnd], index8to16[end]) - index8to16[run.start]; |
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849 int cChars = index8to16[run.start+run.length] - index8to16[run.start]; // make it wchar |
| 29 | 850 int gGlyphs = run.glyphCount; |
| 30 | 851 int piX; |
| 852 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 853 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 854 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 855 rect.left = drawX + runX; |
| 856 rect.top = drawY; | |
| 30 | 857 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 858 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 859 rect.right = drawX + runX; |
| 860 rect.bottom = drawY + lineHeight; | |
| 861 } | |
| 862 if (gdip) { | |
| 863 OS.BeginPath(hdc); | |
| 30 | 864 OS.ScriptTextOut(hdc, run.psc, drawX, drawRunY, 0, null, &run.analysis , null, 0, run.glyphs, run.glyphCount, run.advances, run.justify, run.goffsets); |
| 29 | 865 OS.EndPath(hdc); |
| 866 int count = OS.GetPath(hdc, null, null, 0); | |
| 867 int[] points = new int[count*2]; | |
| 30 | 868 ubyte[] types = new ubyte[count]; |
| 869 OS.GetPath(hdc, cast(POINT*)points.ptr, types.ptr, count); | |
| 29 | 870 for (int typeIndex = 0; typeIndex < types.length; typeIndex++) { |
| 871 int newType = 0; | |
| 872 int type = types[typeIndex] & 0xFF; | |
| 873 switch (type & ~OS.PT_CLOSEFIGURE) { | |
| 874 case OS.PT_MOVETO: newType = Gdip.PathPointTypeStart; break; | |
| 875 case OS.PT_LINETO: newType = Gdip.PathPointTypeLine; break; | |
| 876 case OS.PT_BEZIERTO: newType = Gdip.PathPointTypeBezier; break; | |
| 81 | 877 default: |
| 29 | 878 } |
| 879 if ((type & OS.PT_CLOSEFIGURE) !is 0) newType |= Gdip.PathPointTypeCloseSubpath; | |
| 880 types[typeIndex] = cast(byte)newType; | |
| 881 } | |
| 213 | 882 auto path = Gdip.GraphicsPath_new(cast(Gdip.Point*)points.ptr, types.ptr, count, Gdip.FillModeAlternate); |
| 30 | 883 if (path is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 884 auto brush = foregroundBrush; | |
| 29 | 885 if (fullSelection) { |
|
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886 brush = cast(Gdip.Brush)selBrushFg; |
| 29 | 887 } else { |
| 888 if (run.style !is null && run.style.foreground !is null) { | |
| 30 | 889 auto fg = run.style.foreground.handle; |
| 29 | 890 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 30 | 891 auto color = Gdip.Color_new(argb); |
|
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892 brush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 893 Gdip.Color_delete(color); |
| 894 } | |
| 895 } | |
| 896 int gstate = 0; | |
| 897 if (partialSelection) { | |
| 898 gdipRect.X = rect.left; | |
| 899 gdipRect.Y = rect.top; | |
| 900 gdipRect.Width = rect.right - rect.left; | |
| 901 gdipRect.Height = rect.bottom - rect.top; | |
| 902 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 903 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeExclude); |
| 29 | 904 } |
| 905 int antialias = Gdip.Graphics_GetSmoothingMode(gdipGraphics), textAntialias = 0; | |
| 906 int mode = Gdip.Graphics_GetTextRenderingHint(data.gdipGraphics); | |
| 907 switch (mode) { | |
| 908 case Gdip.TextRenderingHintSystemDefault: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 909 case Gdip.TextRenderingHintSingleBitPerPixel: | |
| 910 case Gdip.TextRenderingHintSingleBitPerPixelGridFit: textAntialias = Gdip.SmoothingModeNone; break; | |
| 911 case Gdip.TextRenderingHintAntiAlias: | |
| 912 case Gdip.TextRenderingHintAntiAliasGridFit: | |
| 913 case Gdip.TextRenderingHintClearTypeGridFit: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 81 | 914 default: |
| 29 | 915 } |
| 916 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); | |
| 917 int gstate2 = 0; | |
| 918 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 919 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 920 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 921 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 922 } | |
| 923 Gdip.Graphics_FillPath(gdipGraphics, brush, path); | |
| 924 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 925 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 926 } | |
| 927 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); | |
| 213 | 928 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, brush, null, alpha); |
| 29 | 929 if (partialSelection) { |
| 930 Gdip.Graphics_Restore(gdipGraphics, gstate); | |
| 931 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 932 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeIntersect); |
| 29 | 933 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); |
| 213 | 934 if ((data.style & DWT.MIRRORED) !is 0) { |
| 935 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 936 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 937 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 938 } | |
| 939 Gdip.Graphics_FillPath(gdipGraphics, selBrushFg, path); | |
| 940 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 941 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 942 } | |
| 29 | 943 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); |
| 213 | 944 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, selBrushFg, &rect, alpha); |
| 29 | 945 Gdip.Graphics_Restore(gdipGraphics, gstate); |
| 946 } | |
| 213 | 947 borderClip = drawBorder(gdip, gdipGraphics, x, drawY, lineHeight, foregroundBrush, selBrushFg, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); |
| 29 | 948 Gdip.GraphicsPath_delete(path); |
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949 if ( brush !is cast(Gdip.Brush)selBrushFg && brush !is cast(Gdip.Brush)foregroundBrush) |
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950 Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); |
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951 } else { |
| 213 | 952 auto fg = foreground; |
|
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953 if (fullSelection) { |
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954 fg = selectionForeground.handle; |
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955 } else { |
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956 if (run.style !is null && run.style.foreground !is null) fg = run.style.foreground.handle; |
| 29 | 957 } |
| 958 OS.SetTextColor(hdc, fg); | |
| 30 | 959 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 | 960 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)fg, null, alpha); |
| 29 | 961 if (partialSelection && fg !is selectionForeground.handle) { |
| 962 OS.SetTextColor(hdc, selectionForeground.handle); | |
| 30 | 963 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 | 964 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)selectionForeground.handle, &rect, alpha); |
| 29 | 965 } |
| 213 | 966 int selForeground = selectionForeground !is null ? selectionForeground.handle : 0; |
| 967 borderClip = drawBorder(gdip, hdc, x, drawY, lineHeight, cast(void*)foreground, cast(void*)selForeground, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); | |
| 29 | 968 } |
| 969 } | |
| 970 } | |
| 971 drawX += run.width; | |
| 972 } | |
| 973 } | |
| 974 if (gdip) { | |
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975 if (selBrush !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrush); |
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976 if (selBrushFg !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrushFg); |
| 213 | 977 if (selPen !is null) Gdip.Pen_delete(selPen); |
| 29 | 978 } else { |
| 979 OS.RestoreDC(hdc, state); | |
| 30 | 980 if (gdipGraphics !is null) Gdip.Graphics_ReleaseHDC(gdipGraphics, hdc); |
| 981 if (selBrush !is null) OS.DeleteObject (selBrush); | |
| 982 if (selPen !is null) OS.DeleteObject (selPen); | |
| 29 | 983 } |
| 984 } | |
| 985 | |
| 213 | 986 void drawLines(bool advance, void* graphics, int x, int lineBaseline, int lineUnderlinePos, int lineBottom, StyleItem[] line, int index, void* color, RECT* clipRect, int alpha) { |
| 987 StyleItem run = line[index]; | |
| 988 TextStyle style = run.style; | |
| 989 if (style is null) return; | |
| 990 if (!style.underline && !style.strikeout) return; | |
| 991 int runX = x + run.x; | |
| 992 int underlineY = lineBaseline - lineUnderlinePos; | |
| 993 int strikeoutY = lineBaseline - run.strikeoutPos; | |
| 994 if (advance) { | |
| 995 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeNone); | |
| 996 auto brush = color; | |
| 997 if (style.underline) { | |
| 998 if (style.underlineColor !is null) { | |
| 999 int fg = style.underlineColor.handle; | |
| 1000 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 1001 auto gdiColor = Gdip.Color_new(argb); | |
| 1002 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1003 Gdip.Color_delete(gdiColor); | |
| 1004 } | |
| 1005 switch (style.underlineStyle) { | |
| 1006 case DWT.UNDERLINE_SQUIGGLE: | |
| 1007 case DWT.UNDERLINE_ERROR: { | |
| 1008 int squigglyThickness = 1; | |
| 1009 int squigglyHeight = 2 * squigglyThickness; | |
| 1010 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 1011 int squigglyX = runX; | |
| 1012 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 1013 squigglyX = x + line[i - 1].x; | |
| 1014 } | |
| 1015 int gstate = 0; | |
| 1016 if (clipRect is null) { | |
| 1017 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1018 Gdip.Rect gdipRect; | |
| 1019 gdipRect.X = runX; | |
| 1020 gdipRect.Y = squigglyY; | |
| 1021 gdipRect.Width = run.width + 1; | |
| 1022 gdipRect.Height = squigglyY + squigglyHeight + 1; | |
| 1023 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1024 } | |
| 1025 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1026 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, squigglyThickness); | |
| 1027 Gdip.Graphics_DrawLines(cast(Gdip.Graphics)graphics, pen, cast(Gdip.Point*)points.ptr, points.length / 2); | |
| 1028 Gdip.Pen_delete(pen); | |
| 1029 if (gstate !is 0) Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1030 break; | |
| 1031 } | |
| 1032 case DWT.UNDERLINE_SINGLE: | |
| 1033 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1034 break; | |
| 1035 case DWT.UNDERLINE_DOUBLE: | |
| 1036 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1037 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY + run.underlineThickness * 2, run.width, run.underlineThickness); | |
| 1038 break; | |
| 1039 case UNDERLINE_IME_THICK: | |
| 1040 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX - run.underlineThickness, underlineY, run.width, run.underlineThickness * 2); | |
| 1041 break; | |
| 1042 case UNDERLINE_IME_DOT: | |
| 1043 case UNDERLINE_IME_DASH: { | |
| 1044 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, 1); | |
| 1045 int dashStyle = style.underlineStyle is UNDERLINE_IME_DOT ? Gdip.DashStyleDot : Gdip.DashStyleDash; | |
| 1046 Gdip.Pen_SetDashStyle(pen, dashStyle); | |
| 1047 Gdip.Graphics_DrawLine(cast(Gdip.Graphics)graphics, pen, runX, underlineY, runX + run.width, underlineY); | |
| 1048 Gdip.Pen_delete(pen); | |
| 1049 break; | |
| 1050 } | |
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1051 default: |
| 213 | 1052 } |
| 1053 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1054 } | |
| 1055 if (style.strikeout) { | |
| 1056 if (style.strikeoutColor !is null) { | |
| 1057 int fg = style.strikeoutColor.handle; | |
| 1058 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 1059 auto gdiColor = Gdip.Color_new(argb); | |
| 1060 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1061 Gdip.Color_delete(gdiColor); | |
| 1062 } | |
| 1063 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, strikeoutY, run.width, run.strikeoutThickness); | |
| 1064 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1065 } | |
| 1066 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeHalf); | |
| 1067 } else { | |
| 1068 uint colorRefUnderline = cast(uint)color; | |
| 1069 uint colorRefStrikeout = cast(uint)color; | |
| 1070 int /*long*/ brushUnderline = 0; | |
| 1071 int /*long*/ brushStrikeout = 0; | |
| 1072 RECT rect; | |
| 1073 if (style.underline) { | |
| 1074 if (style.underlineColor !is null) { | |
| 1075 colorRefUnderline = style.underlineColor.handle; | |
| 1076 } | |
| 1077 switch (style.underlineStyle) { | |
| 1078 case DWT.UNDERLINE_SQUIGGLE: | |
| 1079 case DWT.UNDERLINE_ERROR: { | |
| 1080 int squigglyThickness = 1; | |
| 1081 int squigglyHeight = 2 * squigglyThickness; | |
| 1082 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 1083 int squigglyX = runX; | |
| 1084 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 1085 squigglyX = x + line[i - 1].x; | |
| 1086 } | |
| 1087 int state = OS.SaveDC(graphics); | |
| 1088 if (clipRect !is null) { | |
| 1089 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1090 } else { | |
| 1091 OS.IntersectClipRect(graphics, runX, squigglyY, runX + run.width + 1, squigglyY + squigglyHeight + 1); | |
| 1092 } | |
| 1093 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1094 auto pen = OS.CreatePen(OS.PS_SOLID, squigglyThickness, colorRefUnderline); | |
| 1095 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1096 OS.Polyline(graphics, cast(POINT*)points.ptr, points.length / 2); | |
| 1097 int length_ = points.length; | |
| 1098 if (length_ >= 2 && squigglyThickness <= 1) { | |
| 1099 OS.SetPixel (graphics, points[length_ - 2], points[length_ - 1], colorRefUnderline); | |
| 1100 } | |
| 1101 OS.RestoreDC(graphics, state); | |
| 1102 OS.SelectObject(graphics, oldPen); | |
| 1103 OS.DeleteObject(pen); | |
| 1104 break; | |
| 1105 } | |
| 1106 case DWT.UNDERLINE_SINGLE: | |
| 1107 brushUnderline = cast(uint) OS.CreateSolidBrush(colorRefUnderline); | |
| 1108 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1109 if (clipRect !is null) { | |
| 1110 rect.left = Math.max(rect.left, clipRect.left); | |
| 1111 rect.right = Math.min(rect.right, clipRect.right); | |
| 1112 } | |
| 1113 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1114 break; | |
| 1115 case DWT.UNDERLINE_DOUBLE: | |
| 1116 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1117 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1118 if (clipRect !is null) { | |
| 1119 rect.left = Math.max(rect.left, clipRect.left); | |
| 1120 rect.right = Math.min(rect.right, clipRect.right); | |
| 1121 } | |
| 1122 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1123 OS.SetRect(&rect, runX, underlineY + run.underlineThickness * 2, runX + run.width, underlineY + run.underlineThickness * 3); | |
| 1124 if (clipRect !is null) { | |
| 1125 rect.left = Math.max(rect.left, clipRect.left); | |
| 1126 rect.right = Math.min(rect.right, clipRect.right); | |
| 1127 } | |
| 1128 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1129 break; | |
| 1130 case UNDERLINE_IME_THICK: | |
| 1131 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1132 OS.SetRect(&rect, runX, underlineY - run.underlineThickness, runX + run.width, underlineY + run.underlineThickness); | |
| 1133 if (clipRect !is null) { | |
| 1134 rect.left = Math.max(rect.left, clipRect.left); | |
| 1135 rect.right = Math.min(rect.right, clipRect.right); | |
| 1136 } | |
| 1137 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1138 break; | |
| 1139 case UNDERLINE_IME_DASH: | |
| 1140 case UNDERLINE_IME_DOT: { | |
| 1141 underlineY = lineBaseline + run.descent; | |
| 1142 int penStyle = style.underlineStyle is UNDERLINE_IME_DASH ? OS.PS_DASH : OS.PS_DOT; | |
| 1143 auto pen = OS.CreatePen(penStyle, 1, colorRefUnderline); | |
| 1144 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1145 OS.SetRect(&rect, runX, underlineY, 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.MoveToEx(graphics, rect.left, rect.top, null); | |
| 1151 OS.LineTo(graphics, rect.right, rect.top); | |
| 1152 OS.SelectObject(graphics, oldPen); | |
| 1153 OS.DeleteObject(pen); | |
| 1154 break; | |
| 1155 } | |
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|
1156 default: |
| 213 | 1157 } |
| 1158 } | |
| 1159 if (style.strikeout) { | |
| 1160 if (style.strikeoutColor !is null) { | |
| 1161 colorRefStrikeout = style.strikeoutColor.handle; | |
| 1162 } | |
| 1163 if (brushUnderline !is 0 && colorRefStrikeout is colorRefUnderline) { | |
| 1164 brushStrikeout = brushUnderline; | |
| 1165 } else { | |
| 1166 brushStrikeout = cast(int) OS.CreateSolidBrush(colorRefStrikeout); | |
| 1167 } | |
| 1168 OS.SetRect(&rect, runX, strikeoutY, runX + run.width, strikeoutY + run.strikeoutThickness); | |
| 1169 if (clipRect !is null) { | |
| 1170 rect.left = Math.max(rect.left, clipRect.left); | |
| 1171 rect.right = Math.min(rect.right, clipRect.right); | |
| 1172 } | |
| 1173 OS.FillRect(graphics, &rect, cast(void*)brushStrikeout); | |
| 1174 } | |
| 1175 if (brushUnderline !is 0) OS.DeleteObject(cast(void*)brushUnderline); | |
| 1176 if (brushStrikeout !is 0 && brushStrikeout !is brushUnderline) OS.DeleteObject(cast(void*)brushStrikeout); | |
| 1177 } | |
| 1178 } | |
| 1179 | |
| 1180 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) { | |
| 1181 StyleItem run = line[index]; | |
| 1182 TextStyle style = run.style; | |
| 1183 if (style is null) return null; | |
| 1184 if (style.borderStyle is DWT.NONE) return null; | |
| 1185 if (rect !is null) { | |
| 1186 if (clipRect is null) { | |
| 1187 clipRect = new RECT (); | |
| 1188 OS.SetRect(clipRect, -1, rect.top, -1, rect.bottom); | |
| 1189 } | |
| 1190 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1191 if (run.start <= selectionStart && selectionStart <= run.start + run.length) { | |
| 1192 if (run.analysis.fRTL ^ isRTL) { | |
| 1193 clipRect.right = rect.left; | |
| 1194 } else { | |
| 1195 clipRect.left = rect.left; | |
| 1196 } | |
| 1197 } | |
| 1198 if (run.start <= selectionEnd && selectionEnd <= run.start + run.length) { | |
| 1199 if (run.analysis.fRTL ^ isRTL) { | |
| 1200 clipRect.left = rect.right; | |
| 1201 } else { | |
| 1202 clipRect.right = rect.right; | |
| 1203 } | |
| 1204 } | |
| 1205 } | |
| 1206 if (index + 1 >= line.length || !style.isAdherentBorder(line[index + 1].style)) { | |
| 1207 int left = run.x; | |
| 1208 for (int i = index; i > 0 && style.isAdherentBorder(line[i - 1].style); i--) { | |
| 1209 left = line[i - 1].x; | |
| 1210 } | |
| 1211 if (advance) { | |
| 1212 auto brush = color; | |
| 1213 int customColor = -1; | |
| 1214 if (style.borderColor !is null) { | |
| 1215 customColor = style.borderColor.handle; | |
| 1216 } else { | |
| 1217 if (style.foreground !is null) { | |
| 1218 customColor = style.foreground.handle; | |
| 1219 } | |
| 1220 if (fullSelection && clipRect is null) { | |
| 1221 customColor = -1; | |
| 1222 brush = selectionColor; | |
| 1223 } | |
| 1224 } | |
| 1225 if (customColor !is -1) { | |
| 1226 int argb = ((alpha & 0xFF) << 24) | ((customColor >> 16) & 0xFF) | (customColor & 0xFF00) | ((customColor & 0xFF) << 16); | |
| 1227 auto gdiColor = Gdip.Color_new(argb); | |
| 1228 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1229 Gdip.Color_delete(gdiColor); | |
| 1230 } | |
| 1231 int lineWidth = 1; | |
| 1232 int lineStyle = Gdip.DashStyleSolid; | |
| 1233 switch (style.borderStyle) { | |
| 1234 case DWT.BORDER_SOLID: break; | |
| 1235 case DWT.BORDER_DASH: lineStyle = Gdip.DashStyleDash; break; | |
| 1236 case DWT.BORDER_DOT: lineStyle = Gdip.DashStyleDot; break; | |
|
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1237 default: |
| 213 | 1238 } |
| 1239 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, lineWidth); | |
| 1240 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1241 float gdipXOffset = 0.5f, gdipYOffset = 0.5f; | |
| 1242 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, gdipXOffset, gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1243 if (style.borderColor is null && clipRect !is null) { | |
| 1244 int gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1245 if (clipRect.left is -1) clipRect.left = 0; | |
| 1246 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1247 Gdip.Rect gdipRect; | |
| 1248 gdipRect.X = clipRect.left; | |
| 1249 gdipRect.Y = clipRect.top; | |
| 1250 gdipRect.Width = clipRect.right - clipRect.left; | |
| 1251 gdipRect.Height = clipRect.bottom - clipRect.top; | |
| 1252 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeExclude); | |
| 1253 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1254 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1255 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1256 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1257 auto selPen = Gdip.Pen_new(cast(Gdip.Brush)selectionColor, lineWidth); | |
| 1258 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1259 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, selPen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1260 Gdip.Pen_delete(selPen); | |
| 1261 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1262 } else { | |
| 1263 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1264 } | |
| 1265 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, -gdipXOffset, -gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1266 Gdip.Pen_delete(pen); | |
| 1267 if (customColor !is -1) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1268 } else { | |
| 1269 if (style.borderColor !is null) { | |
| 1270 color = cast(void*)style.borderColor.handle; | |
| 1271 } else { | |
| 1272 if (style.foreground !is null) { | |
| 1273 color = cast(void*)style.foreground.handle; | |
| 1274 } | |
| 1275 if (fullSelection && clipRect is null) { | |
| 1276 color = selectionColor; | |
| 1277 } | |
| 1278 } | |
| 1279 int lineWidth = 1; | |
| 1280 int lineStyle = OS.PS_SOLID; | |
| 1281 switch (style.borderStyle) { | |
| 1282 case DWT.BORDER_SOLID: break; | |
| 1283 case DWT.BORDER_DASH: lineStyle = OS.PS_DASH; break; | |
| 1284 case DWT.BORDER_DOT: lineStyle = OS.PS_DOT; break; | |
|
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|
1285 default: |
| 213 | 1286 } |
| 1287 LOGBRUSH logBrush; | |
| 1288 logBrush.lbStyle = OS.BS_SOLID; | |
| 1289 logBrush.lbColor = cast(uint)color; | |
| 1290 auto newPen = OS.ExtCreatePen(lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1291 auto oldPen = OS.SelectObject(graphics, newPen); | |
| 1292 auto oldBrush = OS.SelectObject(graphics, OS.GetStockObject(OS.NULL_BRUSH)); | |
| 1293 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1294 if (style.borderColor is null && clipRect !is null && color !is selectionColor) { | |
| 1295 int state = OS.SaveDC(graphics); | |
| 1296 if (clipRect.left is -1) clipRect.left = 0; | |
| 1297 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1298 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1299 logBrush.lbColor = cast(uint)selectionColor; | |
| 1300 auto selPen = OS.ExtCreatePen (lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1301 OS.SelectObject(graphics, selPen); | |
| 1302 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1303 OS.RestoreDC(graphics, state); | |
| 1304 OS.SelectObject(graphics, newPen); | |
| 1305 OS.DeleteObject(selPen); | |
| 1306 } | |
| 1307 OS.SelectObject(graphics, oldBrush); | |
| 1308 OS.SelectObject(graphics, oldPen); | |
| 1309 OS.DeleteObject(newPen); | |
| 1310 } | |
| 1311 return null; | |
| 1312 } | |
| 1313 return clipRect; | |
| 1314 } | |
| 1315 | |
| 1316 int[] computePolyline(int left, int top, int right, int bottom) { | |
| 1317 int height = bottom - top; // can be any number | |
| 1318 int width = 2 * height; // must be even | |
| 1319 int peaks = Compatibility.ceil(right - left, width); | |
| 1320 if (peaks is 0 && right - left > 2) { | |
| 1321 peaks = 1; | |
| 1322 } | |
| 1323 int length_ = ((2 * peaks) + 1) * 2; | |
| 1324 if (length_ < 0) return new int[0]; | |
| 1325 | |
| 1326 int[] coordinates = new int[length_]; | |
| 1327 for (int i = 0; i < peaks; i++) { | |
| 1328 int index = 4 * i; | |
| 1329 coordinates[index] = left + (width * i); | |
| 1330 coordinates[index+1] = bottom; | |
| 1331 coordinates[index+2] = coordinates[index] + width / 2; | |
| 1332 coordinates[index+3] = top; | |
| 1333 } | |
| 1334 coordinates[length_-2] = left + (width * peaks); | |
| 1335 coordinates[length_-1] = bottom; | |
| 1336 return coordinates; | |
| 1337 } | |
| 1338 | |
| 29 | 1339 void freeRuns () { |
| 1340 if (allRuns is null) return; | |
| 1341 for (int i=0; i<allRuns.length; i++) { | |
| 1342 StyleItem run = allRuns[i]; | |
| 1343 run.free(); | |
| 1344 } | |
| 1345 allRuns = null; | |
| 1346 runs = null; | |
| 1347 segmentsText = null; | |
|
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changeset
|
1348 segmentsWText = null; |
| 29 | 1349 } |
| 1350 | |
| 1351 /** | |
| 1352 * Returns the receiver's horizontal text alignment, which will be one | |
| 1353 * of <code>DWT.LEFT</code>, <code>DWT.CENTER</code> or | |
| 1354 * <code>DWT.RIGHT</code>. | |
| 1355 * | |
| 1356 * @return the alignment used to positioned text horizontally | |
| 1357 * | |
| 1358 * @exception DWTException <ul> | |
| 1359 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1360 * </ul> | |
| 1361 */ | |
| 1362 public int getAlignment () { | |
| 1363 checkLayout(); | |
| 1364 return alignment; | |
| 1365 } | |
| 1366 | |
| 1367 /** | |
| 1368 * Returns the ascent of the receiver. | |
| 1369 * | |
| 1370 * @return the ascent | |
| 1371 * | |
| 1372 * @exception DWTException <ul> | |
| 1373 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1374 * </ul> | |
| 1375 * | |
| 1376 * @see #getDescent() | |
| 1377 * @see #setDescent(int) | |
| 1378 * @see #setAscent(int) | |
| 1379 * @see #getLineMetrics(int) | |
| 1380 */ | |
| 1381 public int getAscent () { | |
| 1382 checkLayout(); | |
| 1383 return ascent; | |
| 1384 } | |
| 1385 | |
| 1386 /** | |
| 213 | 1387 * Returns the bounds of the receiver. The width returned is either the |
| 1388 * width of the longest line or the width set using {@link TextLayout#setWidth(int)}. | |
| 1389 * To obtain the text bounds of a line use {@link TextLayout#getLineBounds(int)}. | |
| 29 | 1390 * |
| 1391 * @return the bounds of the receiver | |
| 1392 * | |
| 1393 * @exception DWTException <ul> | |
| 1394 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1395 * </ul> | |
| 213 | 1396 * |
| 1397 * @see #setWidth(int) | |
| 1398 * @see #getLineBounds(int) | |
| 29 | 1399 */ |
| 1400 public Rectangle getBounds () { | |
| 1401 checkLayout(); | |
| 1402 computeRuns(null); | |
| 1403 int width = 0; | |
| 1404 if (wrapWidth !is -1) { | |
| 1405 width = wrapWidth; | |
| 1406 } else { | |
| 1407 for (int line=0; line<runs.length; line++) { | |
| 1408 width = Math.max(width, lineWidth[line] + getLineIndent(line)); | |
| 1409 } | |
| 1410 } | |
| 1411 return new Rectangle (0, 0, width, lineY[lineY.length - 1]); | |
| 1412 } | |
| 1413 | |
| 1414 /** | |
| 1415 * Returns the bounds for the specified range of characters. The | |
| 1416 * bounds is the smallest rectangle that encompasses all characters | |
| 1417 * in the range. The start and end offsets are inclusive and will be | |
| 1418 * clamped if out of range. | |
| 1419 * | |
| 1420 * @param start the start offset | |
| 1421 * @param end the end offset | |
| 1422 * @return the bounds of the character range | |
| 1423 * | |
| 1424 * @exception DWTException <ul> | |
| 1425 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1426 * </ul> | |
| 1427 */ | |
| 1428 public Rectangle getBounds (int start, int end) { | |
| 1429 checkLayout(); | |
| 1430 computeRuns(null); | |
| 227 | 1431 int length = text.length; |
| 1432 if (length is 0) return new Rectangle(0, 0, 0, 0); | |
| 29 | 1433 if (start > end) return new Rectangle(0, 0, 0, 0); |
| 227 | 1434 start = Math.min(Math.max(0, start), length - 1); |
| 1435 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 1436 start = translateOffset(start); |
| 1437 end = translateOffset(end); | |
| 1438 int left = 0x7fffffff, right = 0; | |
| 1439 int top = 0x7fffffff, bottom = 0; | |
| 1440 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1441 for (int i = 0; i < allRuns.length - 1; i++) { | |
| 1442 StyleItem run = allRuns[i]; | |
| 1443 int runEnd = run.start + run.length; | |
| 1444 if (runEnd <= start) continue; | |
| 1445 if (run.start > end) break; | |
| 1446 int runLead = run.x; | |
| 1447 int runTrail = run.x + run.width; | |
| 1448 if (run.start <= start && start < runEnd) { | |
| 1449 int cx = 0; | |
| 1450 if (run.style !is null && run.style.metrics !is null) { | |
| 1451 GlyphMetrics metrics = run.style.metrics; | |
|
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|
1452 cx = metrics.width * (index8to16[start] - index8to16[run.start]); |
| 29 | 1453 } else if (!run.tab) { |
| 30 | 1454 int piX; |
| 1455 int* advances = run.justify !is null ? run.justify : run.advances; | |
|
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|
1456 int wlength = index8to16[ run.start+run.length] - index8to16[run.start]; |
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|
1457 OS.ScriptCPtoX(index8to16[start] - index8to16[run.start], false, wlength, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 30 | 1458 cx = isRTL ? run.width - piX : piX; |
| 29 | 1459 } |
| 1460 if (run.analysis.fRTL ^ isRTL) { | |
| 1461 runTrail = run.x + cx; | |
| 1462 } else { | |
| 1463 runLead = run.x + cx; | |
| 1464 } | |
| 1465 } | |
| 1466 if (run.start <= end && end < runEnd) { | |
| 1467 int cx = run.width; | |
| 1468 if (run.style !is null && run.style.metrics !is null) { | |
| 1469 GlyphMetrics metrics = run.style.metrics; | |
|
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|
1470 cx = metrics.width * (index8to16[end] - index8to16[run.start] + 1); |
| 29 | 1471 } else if (!run.tab) { |
| 30 | 1472 int piX; |
| 1473 int* advances = run.justify !is null ? run.justify : run.advances; | |
|
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1474 int wlength = index8to16[ run.start+run.length] - index8to16[run.start]; |
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parents:
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diff
changeset
|
1475 OS.ScriptCPtoX(index8to16[end] - index8to16[run.start], true, wlength, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 30 | 1476 cx = isRTL ? run.width - piX : piX; |
| 29 | 1477 } |
| 1478 if (run.analysis.fRTL ^ isRTL) { | |
| 1479 runLead = run.x + cx; | |
| 1480 } else { | |
| 1481 runTrail = run.x + cx; | |
| 1482 } | |
| 1483 } | |
| 1484 int lineIndex = 0; | |
| 1485 while (lineIndex < runs.length && lineOffset[lineIndex + 1] <= run.start) { | |
| 1486 lineIndex++; | |
| 1487 } | |
| 1488 left = Math.min(left, runLead); | |
| 1489 right = Math.max(right, runTrail); | |
| 1490 top = Math.min(top, lineY[lineIndex]); | |
| 1491 bottom = Math.max(bottom, lineY[lineIndex + 1] - lineSpacing); | |
| 1492 } | |
| 1493 return new Rectangle(left, top, right - left, bottom - top); | |
| 1494 } | |
| 1495 | |
| 1496 /** | |
| 1497 * Returns the descent of the receiver. | |
| 1498 * | |
| 1499 * @return the descent | |
| 1500 * | |
| 1501 * @exception DWTException <ul> | |
| 1502 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1503 * </ul> | |
| 1504 * | |
| 1505 * @see #getAscent() | |
| 1506 * @see #setAscent(int) | |
| 1507 * @see #setDescent(int) | |
| 1508 * @see #getLineMetrics(int) | |
| 1509 */ | |
| 1510 public int getDescent () { | |
| 1511 checkLayout(); | |
| 1512 return descent; | |
| 1513 } | |
| 1514 | |
| 1515 /** | |
| 1516 * Returns the default font currently being used by the receiver | |
| 1517 * to draw and measure text. | |
| 1518 * | |
| 1519 * @return the receiver's font | |
| 1520 * | |
| 1521 * @exception DWTException <ul> | |
| 1522 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1523 * </ul> | |
| 1524 */ | |
| 1525 public Font getFont () { | |
| 1526 checkLayout(); | |
| 1527 return font; | |
| 1528 } | |
| 1529 | |
| 1530 /** | |
| 1531 * Returns the receiver's indent. | |
| 1532 * | |
| 1533 * @return the receiver's indent | |
| 1534 * | |
| 1535 * @exception DWTException <ul> | |
| 1536 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1537 * </ul> | |
| 1538 * | |
| 1539 * @since 3.2 | |
| 1540 */ | |
| 1541 public int getIndent () { | |
| 1542 checkLayout(); | |
| 1543 return indent; | |
| 1544 } | |
| 1545 | |
| 1546 /** | |
| 1547 * Returns the receiver's justification. | |
| 1548 * | |
| 1549 * @return the receiver's justification | |
| 1550 * | |
| 1551 * @exception DWTException <ul> | |
| 1552 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1553 * </ul> | |
| 1554 * | |
| 1555 * @since 3.2 | |
| 1556 */ | |
| 1557 public bool getJustify () { | |
| 1558 checkLayout(); | |
| 1559 return justify; | |
| 1560 } | |
| 1561 | |
| 30 | 1562 HFONT getItemFont (StyleItem item) { |
| 1563 if (item.fallbackFont !is null) return cast(HFONT) item.fallbackFont; | |
| 29 | 1564 if (item.style !is null && item.style.font !is null) { |
| 1565 return item.style.font.handle; | |
| 1566 } | |
| 1567 if (this.font !is null) { | |
| 1568 return this.font.handle; | |
| 1569 } | |
| 213 | 1570 return device.systemFont.handle; |
| 29 | 1571 } |
| 1572 | |
| 1573 /** | |
| 1574 * Returns the embedding level for the specified character offset. The | |
| 1575 * embedding level is usually used to determine the directionality of a | |
| 1576 * character in bidirectional text. | |
| 1577 * | |
| 1578 * @param offset the character offset | |
| 1579 * @return the embedding level | |
| 1580 * | |
| 1581 * @exception IllegalArgumentException <ul> | |
| 1582 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1583 * </ul> | |
| 1584 * @exception DWTException <ul> | |
| 1585 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1586 */ | |
| 1587 public int getLevel (int offset) { | |
| 1588 checkLayout(); | |
| 1589 computeRuns(null); | |
| 227 | 1590 int length = text.length; |
| 1591 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1592 offset = translateOffset(offset); |
| 1593 for (int i=1; i<allRuns.length; i++) { | |
| 1594 if (allRuns[i].start > offset) { | |
| 1595 return allRuns[i - 1].analysis.s.uBidiLevel; | |
| 1596 } | |
| 1597 } | |
| 1598 return (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? 1 : 0; | |
| 1599 } | |
| 1600 | |
| 1601 /** | |
| 1602 * Returns the bounds of the line for the specified line index. | |
| 1603 * | |
| 1604 * @param lineIndex the line index | |
| 1605 * @return the line bounds | |
| 1606 * | |
| 1607 * @exception IllegalArgumentException <ul> | |
| 1608 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1609 * </ul> | |
| 1610 * @exception DWTException <ul> | |
| 1611 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1612 * </ul> | |
| 1613 */ | |
| 1614 public Rectangle getLineBounds(int lineIndex) { | |
| 1615 checkLayout(); | |
| 1616 computeRuns(null); | |
| 1617 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1618 int x = getLineIndent(lineIndex); | |
| 1619 int y = lineY[lineIndex]; | |
| 1620 int width = lineWidth[lineIndex]; | |
| 1621 int height = lineY[lineIndex + 1] - y - lineSpacing; | |
| 1622 return new Rectangle (x, y, width, height); | |
| 1623 } | |
| 1624 | |
| 1625 /** | |
| 1626 * Returns the receiver's line count. This includes lines caused | |
| 1627 * by wrapping. | |
| 1628 * | |
| 1629 * @return the line count | |
| 1630 * | |
| 1631 * @exception DWTException <ul> | |
| 1632 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1633 * </ul> | |
| 1634 */ | |
| 1635 public int getLineCount () { | |
| 1636 checkLayout(); | |
| 1637 computeRuns(null); | |
| 1638 return runs.length; | |
| 1639 } | |
| 1640 | |
| 1641 int getLineIndent (int lineIndex) { | |
| 1642 int lineIndent = 0; | |
| 1643 if (lineIndex is 0) { | |
| 1644 lineIndent = indent; | |
| 1645 } else { | |
| 1646 StyleItem[] previousLine = runs[lineIndex - 1]; | |
| 1647 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 1648 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 1649 lineIndent = indent; | |
| 1650 } | |
| 1651 } | |
| 1652 if (wrapWidth !is -1) { | |
| 1653 bool partialLine = true; | |
| 1654 if (justify) { | |
| 1655 StyleItem[] lineRun = runs[lineIndex]; | |
| 1656 if (lineRun[lineRun.length - 1].softBreak) { | |
| 1657 partialLine = false; | |
| 1658 } | |
| 1659 } | |
| 1660 if (partialLine) { | |
| 1661 int lineWidth = this.lineWidth[lineIndex] + lineIndent; | |
| 1662 switch (alignment) { | |
| 1663 case DWT.CENTER: lineIndent += (wrapWidth - lineWidth) / 2; break; | |
| 1664 case DWT.RIGHT: lineIndent += wrapWidth - lineWidth; break; | |
| 81 | 1665 default: |
| 29 | 1666 } |
| 1667 } | |
| 1668 } | |
| 1669 return lineIndent; | |
| 1670 } | |
| 1671 | |
| 1672 /** | |
| 1673 * Returns the index of the line that contains the specified | |
| 1674 * character offset. | |
| 1675 * | |
| 1676 * @param offset the character offset | |
| 1677 * @return the line index | |
| 1678 * | |
| 1679 * @exception IllegalArgumentException <ul> | |
| 1680 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1681 * </ul> | |
| 1682 * @exception DWTException <ul> | |
| 1683 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1684 * </ul> | |
| 1685 */ | |
| 1686 public int getLineIndex (int offset) { | |
| 1687 checkLayout(); | |
| 1688 computeRuns(null); | |
| 227 | 1689 int length = text.length; |
| 1690 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1691 offset = translateOffset(offset); |
| 1692 for (int line=0; line<runs.length; line++) { | |
| 1693 if (lineOffset[line + 1] > offset) { | |
| 1694 return line; | |
| 1695 } | |
| 1696 } | |
| 1697 return runs.length - 1; | |
| 1698 } | |
| 1699 | |
| 1700 /** | |
| 1701 * Returns the font metrics for the specified line index. | |
| 1702 * | |
| 1703 * @param lineIndex the line index | |
| 1704 * @return the font metrics | |
| 1705 * | |
| 1706 * @exception IllegalArgumentException <ul> | |
| 1707 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1708 * </ul> | |
| 1709 * @exception DWTException <ul> | |
| 1710 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1711 * </ul> | |
| 1712 */ | |
| 1713 public FontMetrics getLineMetrics (int lineIndex) { | |
| 1714 checkLayout(); | |
| 1715 computeRuns(null); | |
| 1716 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 30 | 1717 auto hDC = device.internal_new_GC(null); |
| 1718 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 1719 TEXTMETRIC lptm; |
| 213 | 1720 OS.SelectObject(srcHdc, font !is null ? font.handle : device.systemFont.handle); |
| 29 | 1721 OS.GetTextMetrics(srcHdc, &lptm); |
| 1722 OS.DeleteDC(srcHdc); | |
| 1723 device.internal_dispose_GC(hDC, null); | |
| 1724 | |
| 1725 int ascent = Math.max(lptm.tmAscent, this.ascent); | |
| 1726 int descent = Math.max(lptm.tmDescent, this.descent); | |
| 1727 int leading = lptm.tmInternalLeading; | |
| 30 | 1728 if (text.length !is 0) { |
| 29 | 1729 StyleItem[] lineRuns = runs[lineIndex]; |
| 1730 for (int i = 0; i<lineRuns.length; i++) { | |
| 1731 StyleItem run = lineRuns[i]; | |
| 1732 if (run.ascent > ascent) { | |
| 1733 ascent = run.ascent; | |
| 1734 leading = run.leading; | |
| 1735 } | |
| 1736 descent = Math.max(descent, run.descent); | |
| 1737 } | |
| 1738 } | |
| 1739 lptm.tmAscent = ascent; | |
| 1740 lptm.tmDescent = descent; | |
| 1741 lptm.tmHeight = ascent + descent; | |
| 1742 lptm.tmInternalLeading = leading; | |
| 1743 lptm.tmAveCharWidth = 0; | |
| 30 | 1744 return FontMetrics.win32_new(&lptm); |
| 29 | 1745 } |
| 1746 | |
| 1747 /** | |
| 1748 * Returns the line offsets. Each value in the array is the | |
| 1749 * offset for the first character in a line except for the last | |
| 1750 * value, which contains the length of the text. | |
| 1751 * | |
| 1752 * @return the line offsets | |
| 1753 * | |
| 1754 * @exception DWTException <ul> | |
| 1755 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1756 * </ul> | |
| 1757 */ | |
| 1758 public int[] getLineOffsets () { | |
| 1759 checkLayout(); | |
| 1760 computeRuns(null); | |
| 1761 int[] offsets = new int[lineOffset.length]; | |
| 1762 for (int i = 0; i < offsets.length; i++) { | |
| 1763 offsets[i] = untranslateOffset(lineOffset[i]); | |
| 1764 } | |
| 1765 return offsets; | |
| 1766 } | |
| 1767 | |
| 1768 /** | |
| 1769 * Returns the location for the specified character offset. The | |
| 1770 * <code>trailing</code> argument indicates whether the offset | |
| 1771 * corresponds to the leading or trailing edge of the cluster. | |
| 1772 * | |
| 1773 * @param offset the character offset | |
| 1774 * @param trailing the trailing flag | |
| 1775 * @return the location of the character offset | |
| 1776 * | |
| 1777 * @exception DWTException <ul> | |
| 1778 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1779 * </ul> | |
| 1780 * | |
| 1781 * @see #getOffset(Point, int[]) | |
| 1782 * @see #getOffset(int, int, int[]) | |
| 1783 */ | |
| 1784 public Point getLocation (int offset, bool trailing) { | |
| 1785 checkLayout(); | |
| 1786 computeRuns(null); | |
| 227 | 1787 int length = text.length; |
| 1788 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1789 length = segmentsText.length; | |
| 29 | 1790 offset = translateOffset(offset); |
| 1791 int line; | |
| 1792 for (line=0; line<runs.length; line++) { | |
| 1793 if (lineOffset[line + 1] > offset) break; | |
| 1794 } | |
| 1795 line = Math.min(line, runs.length - 1); | |
| 227 | 1796 if (offset is length) { |
| 213 | 1797 return new Point(getLineIndent(line) + lineWidth[line], lineY[line]); |
| 1798 } | |
| 1799 int low = -1; | |
| 1800 int high = allRuns.length; | |
| 1801 while (high - low > 1) { | |
| 1802 int index = ((high + low) / 2); | |
| 1803 StyleItem run = allRuns[index]; | |
| 1804 if (run.start > offset) { | |
| 1805 high = index; | |
| 1806 } else if (run.start + run.length <= offset) { | |
| 1807 low = index; | |
| 1808 } else { | |
| 1809 int width; | |
| 1810 if (run.style !is null && run.style.metrics !is null) { | |
| 1811 GlyphMetrics metrics = run.style.metrics; | |
| 1812 width = metrics.width * (offset - run.start + (trailing ? 1 : 0)); | |
| 1813 } else if (run.tab) { | |
| 227 | 1814 width = (trailing || (offset is length)) ? run.width : 0; |
| 213 | 1815 } else { |
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1816 int runOffset = index8to16[offset] - index8to16[run.start]; |
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1817 int cChars = index8to16[run.start+run.length] - index8to16[run.start]; // make it wchar |
| 213 | 1818 int gGlyphs = run.glyphCount; |
| 1819 int piX; | |
| 1820 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1821 OS.ScriptCPtoX(runOffset, trailing, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1822 width = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 1823 } |
| 213 | 1824 return new Point(run.x + width, lineY[line]); |
| 29 | 1825 } |
| 1826 } | |
| 213 | 1827 return new Point(0, 0); |
| 29 | 1828 } |
| 1829 | |
| 1830 /** | |
| 1831 * Returns the next offset for the specified offset and movement | |
| 1832 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 1833 * <code>DWT.MOVEMENT_CLUSTER</code>, <code>DWT.MOVEMENT_WORD</code>, | |
| 1834 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 1835 * | |
| 1836 * @param offset the start offset | |
| 1837 * @param movement the movement type | |
| 1838 * @return the next offset | |
| 1839 * | |
| 1840 * @exception IllegalArgumentException <ul> | |
| 1841 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 1842 * </ul> | |
| 1843 * @exception DWTException <ul> | |
| 1844 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1845 * </ul> | |
| 1846 * | |
| 1847 * @see #getPreviousOffset(int, int) | |
| 1848 */ | |
| 1849 public int getNextOffset (int offset, int movement) { | |
| 1850 checkLayout(); | |
| 1851 return _getOffset (offset, movement, true); | |
| 1852 } | |
| 1853 | |
| 1854 int _getOffset(int offset, int movement, bool forward) { | |
| 1855 computeRuns(null); | |
| 227 | 1856 int length = text.length; |
| 1857 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1858 if (forward && offset is length) return length; | |
| 29 | 1859 if (!forward && offset is 0) return 0; |
| 1860 int step = forward ? 1 : -1; | |
| 1861 if ((movement & DWT.MOVEMENT_CHAR) !is 0) return offset + step; | |
| 227 | 1862 length = segmentsText.length; |
| 29 | 1863 offset = translateOffset(offset); |
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1864 SCRIPT_LOGATTR* logAttr; |
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1865 SCRIPT_PROPERTIES* properties; |
| 29 | 1866 int i = forward ? 0 : allRuns.length - 1; |
| 1867 offset = validadeOffset(offset, step); | |
| 1868 do { | |
| 1869 StyleItem run = allRuns[i]; | |
| 1870 if (run.start <= offset && offset < run.start + run.length) { | |
| 1871 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1872 if (run.tab) return untranslateOffset(run.start); | |
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1873 properties = device.scripts[run.analysis.eScript]; |
| 29 | 1874 bool isComplex = properties.fNeedsCaretInfo || properties.fNeedsWordBreaking; |
| 1875 if (isComplex) breakRun(run); | |
| 1876 while (run.start <= offset && offset < run.start + run.length) { | |
| 1877 if (isComplex) { | |
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1878 logAttr = run.psla + (index8to16[offset] - index8to16[run.start]); |
| 29 | 1879 } |
| 1880 switch (movement) { | |
| 1881 case DWT.MOVEMENT_CLUSTER: { | |
| 1882 if (properties.fNeedsCaretInfo) { | |
| 1883 if (!logAttr.fInvalid && logAttr.fCharStop) return untranslateOffset(offset); | |
| 1884 } else { | |
| 1885 return untranslateOffset(offset); | |
| 1886 } | |
| 1887 break; | |
| 1888 } | |
| 1889 case DWT.MOVEMENT_WORD_START: | |
| 1890 case DWT.MOVEMENT_WORD: { | |
| 1891 if (properties.fNeedsWordBreaking) { | |
| 1892 if (!logAttr.fInvalid && logAttr.fWordStop) return untranslateOffset(offset); | |
| 1893 } else { | |
| 1894 if (offset > 0) { | |
| 1895 bool letterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1896 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1897 if (letterOrDigit !is previousLetterOrDigit || !letterOrDigit) { | |
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1898 if (!Compatibility.isWhitespace(segmentsText[offset..$].firstCodePoint())) { |
| 29 | 1899 return untranslateOffset(offset); |
| 1900 } | |
| 1901 } | |
| 1902 } | |
| 1903 } | |
| 1904 break; | |
| 1905 } | |
| 1906 case DWT.MOVEMENT_WORD_END: { | |
| 1907 if (offset > 0) { | |
| 1908 bool isLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
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1909 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText[offset - 1.. $].firstCodePoint()); |
| 29 | 1910 if (!isLetterOrDigit && previousLetterOrDigit) { |
| 1911 return untranslateOffset(offset); | |
| 1912 } | |
| 1913 } | |
| 1914 break; | |
| 1915 } | |
| 81 | 1916 default: |
| 29 | 1917 } |
| 1918 offset = validadeOffset(offset, step); | |
| 1919 } | |
| 1920 } | |
| 1921 i += step; | |
| 227 | 1922 } while (0 <= i && i < allRuns.length - 1 && 0 <= offset && offset < length); |
| 30 | 1923 return forward ? text.length : 0; |
| 29 | 1924 } |
| 1925 | |
| 1926 /** | |
| 1927 * Returns the character offset for the specified point. | |
| 1928 * For a typical character, the trailing argument will be filled in to | |
| 1929 * indicate whether the point is closer to the leading edge (0) or | |
| 1930 * the trailing edge (1). When the point is over a cluster composed | |
| 1931 * of multiple characters, the trailing argument will be filled with the | |
| 1932 * position of the character in the cluster that is closest to | |
| 1933 * the point. | |
| 1934 * | |
| 1935 * @param point the point | |
| 1936 * @param trailing the trailing buffer | |
| 1937 * @return the character offset | |
| 1938 * | |
| 1939 * @exception IllegalArgumentException <ul> | |
| 1940 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1941 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> | |
| 1942 * </ul> | |
| 1943 * @exception DWTException <ul> | |
| 1944 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1945 * </ul> | |
| 1946 * | |
| 1947 * @see #getLocation(int, bool) | |
| 1948 */ | |
| 1949 public int getOffset (Point point, int[] trailing) { | |
| 1950 checkLayout(); | |
| 1951 if (point is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1952 return getOffset (point.x, point.y, trailing) ; | |
| 1953 } | |
| 1954 | |
| 1955 /** | |
| 1956 * Returns the character offset for the specified point. | |
| 1957 * For a typical character, the trailing argument will be filled in to | |
| 1958 * indicate whether the point is closer to the leading edge (0) or | |
| 1959 * the trailing edge (1). When the point is over a cluster composed | |
| 1960 * of multiple characters, the trailing argument will be filled with the | |
| 1961 * position of the character in the cluster that is closest to | |
| 1962 * the point. | |
| 1963 * | |
| 1964 * @param x the x coordinate of the point | |
| 1965 * @param y the y coordinate of the point | |
| 1966 * @param trailing the trailing buffer | |
| 1967 * @return the character offset | |
| 1968 * | |
| 1969 * @exception IllegalArgumentException <ul> | |
| 1970 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1971 * </ul> | |
| 1972 * @exception DWTException <ul> | |
| 1973 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1974 * </ul> | |
| 1975 * | |
| 1976 * @see #getLocation(int, bool) | |
| 1977 */ | |
| 1978 public int getOffset (int x, int y, int[] trailing) { | |
| 1979 checkLayout(); | |
| 1980 computeRuns(null); | |
| 1981 if (trailing !is null && trailing.length < 1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
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1982 |
| 29 | 1983 int line; |
| 1984 int lineCount = runs.length; | |
| 1985 for (line=0; line<lineCount; line++) { | |
| 1986 if (lineY[line + 1] > y) break; | |
| 1987 } | |
| 1988 line = Math.min(line, runs.length - 1); | |
| 1989 StyleItem[] lineRuns = runs[line]; | |
| 213 | 1990 int lineIndent = getLineIndent(line); |
| 1991 if (x >= lineIndent + lineWidth[line]) x = lineIndent + lineWidth[line] - 1; | |
| 1992 if (x < lineIndent) x = lineIndent; | |
| 1993 int low = -1; | |
| 1994 int high = lineRuns.length; | |
| 1995 while (high - low > 1) { | |
| 1996 int index = ((high + low) / 2); | |
| 1997 StyleItem run = lineRuns[index]; | |
| 1998 if (run.x > x) { | |
| 1999 high = index; | |
| 2000 } else if (run.x + run.width <= x) { | |
| 2001 low = index; | |
| 2002 } else { | |
| 2003 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 2004 int xRun = x - run.x; | |
| 29 | 2005 if (run.style !is null && run.style.metrics !is null) { |
| 2006 GlyphMetrics metrics = run.style.metrics; | |
| 2007 if (metrics.width > 0) { | |
| 2008 if (trailing !is null) { | |
| 2009 trailing[0] = (xRun % metrics.width < metrics.width / 2) ? 0 : 1; | |
| 2010 } | |
| 2011 return untranslateOffset(run.start + xRun / metrics.width); | |
| 2012 } | |
| 2013 } | |
| 2014 if (run.tab) { | |
| 213 | 2015 if (trailing !is null) trailing[0] = x < (run.x + run.width / 2) ? 0 : 1; |
| 29 | 2016 return untranslateOffset(run.start); |
| 2017 } | |
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2018 int cChars = index8to16[run.start+run.length] - index8to16[run.start]; // make it wchar |
| 29 | 2019 int cGlyphs = run.glyphCount; |
| 30 | 2020 int piCP; |
| 2021 int piTrailing; | |
| 29 | 2022 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { |
| 2023 xRun = run.width - xRun; | |
| 2024 } | |
| 30 | 2025 int* advances = run.justify !is null ? run.justify : run.advances; |
| 2026 OS.ScriptXtoCP(xRun, cChars, cGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piCP, &piTrailing); | |
| 2027 if (trailing !is null) trailing[0] = piTrailing; | |
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2028 |
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2029 // DWT: back from codepoints to utf8 index |
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2030 int offsetIndex = segmentsText[ run.start .. $ ].codepointIndexToIndex( piCP ); |
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2031 return untranslateOffset(run.start + offsetIndex); |
| 29 | 2032 } |
| 2033 } | |
| 2034 if (trailing !is null) trailing[0] = 0; | |
| 2035 return untranslateOffset(lineOffset[line + 1]); | |
| 2036 } | |
| 2037 | |
| 2038 /** | |
| 2039 * Returns the orientation of the receiver. | |
| 2040 * | |
| 2041 * @return the orientation style | |
| 2042 * | |
| 2043 * @exception DWTException <ul> | |
| 2044 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2045 * </ul> | |
| 2046 */ | |
| 2047 public int getOrientation () { | |
| 2048 checkLayout(); | |
| 2049 return orientation; | |
| 2050 } | |
| 2051 | |
| 2052 /** | |
| 2053 * Returns the previous offset for the specified offset and movement | |
| 2054 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 2055 * <code>DWT.MOVEMENT_CLUSTER</code> or <code>DWT.MOVEMENT_WORD</code>, | |
| 2056 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 2057 * | |
| 2058 * @param offset the start offset | |
| 2059 * @param movement the movement type | |
| 2060 * @return the previous offset | |
| 2061 * | |
| 2062 * @exception IllegalArgumentException <ul> | |
| 2063 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 2064 * </ul> | |
| 2065 * @exception DWTException <ul> | |
| 2066 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2067 * </ul> | |
| 2068 * | |
| 2069 * @see #getNextOffset(int, int) | |
| 2070 */ | |
| 2071 public int getPreviousOffset (int offset, int movement) { | |
| 2072 checkLayout(); | |
| 2073 return _getOffset (offset, movement, false); | |
| 2074 } | |
| 2075 | |
| 2076 /** | |
| 2077 * Gets the ranges of text that are associated with a <code>TextStyle</code>. | |
| 2078 * | |
| 2079 * @return the ranges, an array of offsets representing the start and end of each | |
| 2080 * text style. | |
| 2081 * | |
| 2082 * @exception DWTException <ul> | |
| 2083 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2084 * </ul> | |
| 2085 * | |
| 2086 * @see #getStyles() | |
| 2087 * | |
| 2088 * @since 3.2 | |
| 2089 */ | |
| 2090 public int[] getRanges () { | |
| 2091 checkLayout(); | |
| 213 | 2092 int[] result = new int[stylesCount * 2]; |
| 29 | 2093 int count = 0; |
| 213 | 2094 for (int i=0; i<stylesCount - 1; i++) { |
| 29 | 2095 if (styles[i].style !is null) { |
| 2096 result[count++] = styles[i].start; | |
| 2097 result[count++] = styles[i + 1].start - 1; | |
| 2098 } | |
| 2099 } | |
| 2100 if (count !is result.length) { | |
| 2101 int[] newResult = new int[count]; | |
| 2102 System.arraycopy(result, 0, newResult, 0, count); | |
| 2103 result = newResult; | |
| 2104 } | |
| 2105 return result; | |
| 2106 } | |
| 2107 | |
| 2108 /** | |
| 2109 * Returns the text segments offsets of the receiver. | |
| 2110 * | |
| 2111 * @return the text segments offsets | |
| 2112 * | |
| 2113 * @exception DWTException <ul> | |
| 2114 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2115 * </ul> | |
| 2116 */ | |
| 2117 public int[] getSegments () { | |
| 2118 checkLayout(); | |
| 2119 return segments; | |
| 2120 } | |
| 2121 | |
|
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2122 void getSegmentsText( out char[] resUtf8, out wchar[] resUtf16 ) { |
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2123 |
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2124 void buildIndexTables() { // build the index translation tables. |
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2125 index8to16.length = resUtf8.length + 1; |
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2126 index16to8.length = resUtf16.length + 1; |
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2127 |
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2128 int idx8, idx16; |
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2129 while( idx8 < resUtf8.length ){ |
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2130 int ate8, ate16; |
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2131 dchar d8 = resUtf8[ idx8 .. $ ].firstCodePoint( ate8 ); |
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2132 dchar d16 = resUtf16[ idx16 .. $ ].firstCodePoint( ate16 ); |
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2133 assert( d8 is d16 ); |
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2134 index16to8[ idx16 .. idx16 +ate16 ] = idx8; |
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2135 index8to16[ idx8 .. idx8 +ate8 ] = idx16; |
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2136 idx8 += ate8; |
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2137 idx16 += ate16; |
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2138 } |
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2139 index16to8[ resUtf16.length ] = resUtf8.length; |
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2140 index8to16[ resUtf8.length ] = resUtf16.length; |
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2141 } |
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2142 |
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2143 if (segments is null) { |
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2144 resUtf8 = text; |
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2145 resUtf16 = wtext; |
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2146 buildIndexTables(); |
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2147 return; |
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2148 } |
| 29 | 2149 int nSegments = segments.length; |
|
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2150 if (nSegments <= 1) { |
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2151 resUtf8 = text; |
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2152 resUtf16 = wtext; |
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2153 buildIndexTables(); |
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2154 return; |
| 29 | 2155 } |
|
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2156 int length_ = text.length; |
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2157 int wlength_ = wtext.length; |
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2158 if (length_ is 0) { |
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2159 resUtf8 = text; |
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2160 resUtf16 = wtext; |
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2161 buildIndexTables(); |
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2162 return; |
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2163 } |
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2164 if (nSegments is 2) { |
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2165 if (segments[0] is 0 && segments[1] is length_) { |
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2166 resUtf8 = text; |
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2167 resUtf16 = wtext; |
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2168 buildIndexTables(); |
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2169 return; |
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|
2170 } |
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2171 } |
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2172 { |
|
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2173 char[] oldChars = text; |
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2174 // DWT: MARK is now 3 chars long |
|
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2175 String separator = orientation is DWT.RIGHT_TO_LEFT ? STR_RTL_MARK : STR_LTR_MARK; |
|
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2176 assert( separator.length is MARK_SIZE ); |
|
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2177 char[] newChars = new char[length_ + nSegments*MARK_SIZE]; |
|
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2178 |
|
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2179 int charCount = 0, segmentCount = 0; |
|
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2180 while (charCount < length_) { |
|
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2181 if (segmentCount < nSegments && charCount is segments[segmentCount]) { |
|
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2182 int start = charCount + (segmentCount*MARK_SIZE); |
|
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2183 newChars[ start .. start + MARK_SIZE ] = separator; |
|
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2184 segmentCount++; |
|
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|
2185 } else { |
|
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2186 newChars[charCount + (segmentCount*MARK_SIZE)] = oldChars[charCount]; |
|
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2187 charCount++; |
|
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|
2188 } |
|
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|
2189 } |
|
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|
2190 if (segmentCount < nSegments) { |
|
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2191 segments[segmentCount] = charCount; |
|
278
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|
2192 int start = charCount + (segmentCount*MARK_SIZE); |
|
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|
2193 newChars[ start .. start + MARK_SIZE ] = separator; |
|
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2194 segmentCount++; |
| 29 | 2195 } |
|
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2196 resUtf8 = newChars[ 0 .. Math.min(charCount + (segmentCount*MARK_SIZE), newChars.length)]; |
| 29 | 2197 } |
|
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2198 // now for the wide chars |
|
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2199 { |
|
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|
2200 wchar[] oldWChars = wtext; |
|
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2201 wchar[] wseparator = orientation is DWT.RIGHT_TO_LEFT ? WSTR_RTL_MARK : WSTR_LTR_MARK; |
|
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2202 assert( wseparator.length is 1 ); |
|
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2203 wchar[] newWChars = new wchar[wlength_ + nSegments]; |
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2204 |
|
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2205 int charCount = 0, segmentCount = 0; |
|
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2206 while (charCount < wlength_) { |
|
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2207 if (segmentCount < nSegments && charCount is wsegments[segmentCount]) { |
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2208 int start = charCount + (segmentCount*WMARK_SIZE); |
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2209 newWChars[ start .. start + WMARK_SIZE ] = wseparator; |
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2210 segmentCount++; |
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2211 } else { |
|
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2212 newWChars[charCount + (segmentCount*WMARK_SIZE)] = oldWChars[charCount]; |
|
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2213 charCount++; |
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2214 } |
|
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2215 } |
|
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2216 if (segmentCount < nSegments) { |
|
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2217 wsegments[segmentCount] = charCount; |
|
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2218 int start = charCount + (segmentCount*WMARK_SIZE); |
|
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2219 newWChars[ start .. start + WMARK_SIZE ] = wseparator; |
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2220 segmentCount++; |
|
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2221 } |
|
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2222 resUtf16 = newWChars[ 0 .. Math.min(charCount + (segmentCount*WMARK_SIZE), newWChars.length)]; |
| 29 | 2223 } |
|
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2224 buildIndexTables(); |
| 29 | 2225 } |
| 2226 | |
| 2227 /** | |
| 2228 * Returns the line spacing of the receiver. | |
| 2229 * | |
| 2230 * @return the line spacing | |
| 2231 * | |
| 2232 * @exception DWTException <ul> | |
| 2233 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2234 * </ul> | |
| 2235 */ | |
| 2236 public int getSpacing () { | |
| 2237 checkLayout(); | |
| 2238 return lineSpacing; | |
| 2239 } | |
| 2240 | |
| 2241 /** | |
| 2242 * Gets the style of the receiver at the specified character offset. | |
| 2243 * | |
| 2244 * @param offset the text offset | |
| 2245 * @return the style or <code>null</code> if not set | |
| 2246 * | |
| 2247 * @exception IllegalArgumentException <ul> | |
| 2248 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 2249 * </ul> | |
| 2250 * @exception DWTException <ul> | |
| 2251 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2252 * </ul> | |
| 2253 */ | |
| 2254 public TextStyle getStyle (int offset) { | |
| 2255 checkLayout(); | |
| 227 | 2256 int length = text.length; |
| 2257 if (!(0 <= offset && offset < length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 213 | 2258 for (int i=1; i<stylesCount; i++) { |
| 29 | 2259 if (styles[i].start > offset) { |
| 2260 return styles[i - 1].style; | |
| 2261 } | |
| 2262 } | |
| 2263 return null; | |
| 2264 } | |
| 2265 | |
| 2266 /** | |
| 2267 * Gets all styles of the receiver. | |
| 2268 * | |
| 2269 * @return the styles | |
| 2270 * | |
| 2271 * @exception DWTException <ul> | |
| 2272 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2273 * </ul> | |
| 2274 * | |
| 2275 * @see #getRanges() | |
| 2276 * | |
| 2277 * @since 3.2 | |
| 2278 */ | |
| 2279 public TextStyle[] getStyles () { | |
| 2280 checkLayout(); | |
| 213 | 2281 TextStyle[] result = new TextStyle[stylesCount]; |
| 29 | 2282 int count = 0; |
| 213 | 2283 for (int i=0; i<stylesCount; i++) { |
| 29 | 2284 if (styles[i].style !is null) { |
| 2285 result[count++] = styles[i].style; | |
| 2286 } | |
| 2287 } | |
| 2288 if (count !is result.length) { | |
| 2289 TextStyle[] newResult = new TextStyle[count]; | |
| 2290 System.arraycopy(result, 0, newResult, 0, count); | |
| 2291 result = newResult; | |
| 2292 } | |
| 2293 return result; | |
| 2294 } | |
| 2295 | |
| 2296 /** | |
| 2297 * Returns the tab list of the receiver. | |
| 2298 * | |
| 2299 * @return the tab list | |
| 2300 * | |
| 2301 * @exception DWTException <ul> | |
| 2302 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2303 * </ul> | |
| 2304 */ | |
| 2305 public int[] getTabs () { | |
| 2306 checkLayout(); | |
| 2307 return tabs; | |
| 2308 } | |
| 2309 | |
| 2310 /** | |
| 2311 * Gets the receiver's text, which will be an empty | |
| 2312 * string if it has never been set. | |
| 2313 * | |
| 2314 * @return the receiver's text | |
| 2315 * | |
| 2316 * @exception DWTException <ul> | |
| 2317 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2318 * </ul> | |
| 2319 */ | |
|
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2320 public String getText () { |
| 29 | 2321 checkLayout(); |
| 2322 return text; | |
| 2323 } | |
| 2324 | |
| 2325 /** | |
| 2326 * Returns the width of the receiver. | |
| 2327 * | |
| 2328 * @return the width | |
| 2329 * | |
| 2330 * @exception DWTException <ul> | |
| 2331 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2332 * </ul> | |
| 2333 */ | |
| 2334 public int getWidth () { | |
| 2335 checkLayout(); | |
| 2336 return wrapWidth; | |
| 2337 } | |
| 2338 | |
| 2339 /** | |
| 2340 * Returns <code>true</code> if the text layout has been disposed, | |
| 2341 * and <code>false</code> otherwise. | |
| 2342 * <p> | |
| 2343 * This method gets the dispose state for the text layout. | |
| 2344 * When a text layout has been disposed, it is an error to | |
| 2345 * invoke any other method using the text layout. | |
| 2346 * </p> | |
| 2347 * | |
| 2348 * @return <code>true</code> when the text layout is disposed and <code>false</code> otherwise | |
| 2349 */ | |
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2350 override public bool isDisposed () { |
| 29 | 2351 return device is null; |
| 2352 } | |
| 2353 | |
| 2354 /* | |
| 2355 * Itemize the receiver text | |
| 2356 */ | |
| 2357 StyleItem[] itemize () { | |
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2358 // DWT: itemize is the process of finding changes in direction |
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2359 getSegmentsText(segmentsText, segmentsWText ); |
| 227 | 2360 int length = segmentsText.length; |
| 30 | 2361 SCRIPT_CONTROL scriptControl; |
| 2362 SCRIPT_STATE scriptState; | |
| 227 | 2363 final int MAX_ITEM = length + 1; |
| 29 | 2364 |
| 2365 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 2366 scriptState.uBidiLevel = 1; | |
| 2367 scriptState.fArabicNumContext = true; | |
| 30 | 2368 SCRIPT_DIGITSUBSTITUTE psds; |
| 2369 OS.ScriptRecordDigitSubstitution(OS.LOCALE_USER_DEFAULT, &psds); | |
| 2370 OS.ScriptApplyDigitSubstitution(&psds, &scriptControl, &scriptState); | |
| 29 | 2371 } |
| 2372 | |
| 30 | 2373 auto hHeap = OS.GetProcessHeap(); |
| 2374 auto pItems = cast(SCRIPT_ITEM*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, MAX_ITEM * SCRIPT_ITEM.sizeof); | |
| 2375 if (pItems is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2376 int pcItems; | |
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2377 wchar[] chars = segmentsWText; |
| 30 | 2378 OS.ScriptItemize(chars.ptr, chars.length, MAX_ITEM, &scriptControl, &scriptState, pItems, &pcItems); |
| 29 | 2379 // if (hr is E_OUTOFMEMORY) //TODO handle it |
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2380 // DWT pcItems is not inclusive the trailing item |
| 29 | 2381 |
| 30 | 2382 StyleItem[] runs = merge(pItems, pcItems); |
| 29 | 2383 OS.HeapFree(hHeap, 0, pItems); |
| 2384 return runs; | |
| 2385 } | |
| 2386 | |
| 2387 /* | |
| 2388 * Merge styles ranges and script items | |
| 2389 */ | |
| 30 | 2390 StyleItem[] merge (SCRIPT_ITEM* items, int itemCount) { |
| 213 | 2391 if (styles.length > stylesCount) { |
| 2392 StyleItem[] newStyles = new StyleItem[stylesCount]; | |
| 2393 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2394 styles = newStyles; | |
| 2395 } | |
| 30 | 2396 int count = 0, start = 0, end = segmentsText.length, itemIndex = 0, styleIndex = 0; |
| 213 | 2397 StyleItem[] runs = new StyleItem[itemCount + stylesCount]; |
|
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2398 SCRIPT_ITEM* scriptItem; |
| 29 | 2399 bool linkBefore = false; |
| 2400 while (start < end) { | |
| 2401 StyleItem item = new StyleItem(); | |
| 2402 item.start = start; | |
| 2403 item.style = styles[styleIndex].style; | |
| 2404 runs[count++] = item; | |
|
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2405 scriptItem = items + itemIndex; |
| 29 | 2406 item.analysis = scriptItem.a; |
| 2407 if (linkBefore) { | |
| 2408 item.analysis.fLinkBefore = true; | |
| 2409 linkBefore = false; | |
| 2410 } | |
| 30 | 2411 //scriptItem.a = new SCRIPT_ANALYSIS(); |
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2412 scriptItem = items + (itemIndex + 1); |
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2413 int itemLimit = index16to8[scriptItem.iCharPos]; |
| 29 | 2414 int styleLimit = translateOffset(styles[styleIndex + 1].start); |
| 2415 if (styleLimit <= itemLimit) { | |
| 2416 styleIndex++; | |
| 2417 start = styleLimit; | |
| 2418 if (start < itemLimit && 0 < start && start < end) { | |
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2419 dchar pChar = segmentsText[ segmentsText.getAbsoluteCodePointOffset(start, -1) ..$].firstCodePoint(); |
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2420 dchar tChar = segmentsText[start ..$].firstCodePoint(); |
| 213 | 2421 if (Compatibility.isLetter(pChar) && Compatibility.isLetter(tChar)) { |
| 29 | 2422 item.analysis.fLinkAfter = true; |
| 2423 linkBefore = true; | |
| 2424 } | |
| 2425 } | |
| 2426 } | |
| 2427 if (itemLimit <= styleLimit) { | |
| 2428 itemIndex++; | |
| 2429 start = itemLimit; | |
| 2430 } | |
| 2431 item.length = start - item.start; | |
| 2432 } | |
| 2433 StyleItem item = new StyleItem(); | |
| 2434 item.start = end; | |
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2435 scriptItem = items + itemCount; |
| 29 | 2436 item.analysis = scriptItem.a; |
| 2437 runs[count++] = item; | |
| 2438 if (runs.length !is count) { | |
| 2439 StyleItem[] result = new StyleItem[count]; | |
| 2440 System.arraycopy(runs, 0, result, 0, count); | |
| 2441 return result; | |
| 2442 } | |
| 2443 return runs; | |
| 2444 } | |
| 2445 | |
| 2446 /* | |
| 2447 * Reorder the run | |
| 2448 */ | |
| 2449 StyleItem[] reorder (StyleItem[] runs, bool terminate) { | |
| 30 | 2450 int length_ = runs.length; |
| 2451 if (length_ <= 1) return runs; | |
| 2452 ubyte[] bidiLevels = new ubyte[length_]; | |
| 2453 for (int i=0; i<length_; i++) { | |
| 29 | 2454 bidiLevels[i] = cast(byte)(runs[i].analysis.s.uBidiLevel & 0x1F); |
| 2455 } | |
| 2456 /* | |
| 2457 * Feature in Windows. If the orientation is RTL Uniscribe will | |
| 2458 * resolve the level of line breaks to 1, this can cause the line | |
| 2459 * break to be reorder to the middle of the line. The fix is to set | |
| 2460 * the level to zero to prevent it to be reordered. | |
| 2461 */ | |
| 30 | 2462 StyleItem lastRun = runs[length_ - 1]; |
| 29 | 2463 if (lastRun.lineBreak && !lastRun.softBreak) { |
| 30 | 2464 bidiLevels[length_ - 1] = 0; |
| 29 | 2465 } |
| 30 | 2466 int[] log2vis = new int[length_]; |
| 2467 OS.ScriptLayout(length_, bidiLevels.ptr, null, log2vis.ptr); | |
| 2468 StyleItem[] result = new StyleItem[length_]; | |
| 2469 for (int i=0; i<length_; i++) { | |
| 29 | 2470 result[log2vis[i]] = runs[i]; |
| 2471 } | |
| 2472 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 30 | 2473 if (terminate) length_--; |
| 2474 for (int i = 0; i < length_ / 2 ; i++) { | |
| 29 | 2475 StyleItem tmp = result[i]; |
| 30 | 2476 result[i] = result[length_ - i - 1]; |
| 2477 result[length_ - i - 1] = tmp; | |
| 29 | 2478 } |
| 2479 } | |
| 2480 return result; | |
| 2481 } | |
| 2482 | |
| 2483 /** | |
| 2484 * Sets the text alignment for the receiver. The alignment controls | |
| 2485 * how a line of text is positioned horizontally. The argument should | |
| 2486 * be one of <code>DWT.LEFT</code>, <code>DWT.RIGHT</code> or <code>DWT.CENTER</code>. | |
| 2487 * <p> | |
| 2488 * The default alignment is <code>DWT.LEFT</code>. Note that the receiver's | |
| 2489 * width must be set in order to use <code>DWT.RIGHT</code> or <code>DWT.CENTER</code> | |
| 2490 * alignment. | |
| 2491 * </p> | |
| 2492 * | |
| 2493 * @param alignment the new alignment | |
| 2494 * | |
| 2495 * @exception DWTException <ul> | |
| 2496 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2497 * </ul> | |
| 2498 * | |
| 2499 * @see #setWidth(int) | |
| 2500 */ | |
| 2501 public void setAlignment (int alignment) { | |
| 2502 checkLayout(); | |
| 2503 int mask = DWT.LEFT | DWT.CENTER | DWT.RIGHT; | |
| 2504 alignment &= mask; | |
| 2505 if (alignment is 0) return; | |
| 2506 if ((alignment & DWT.LEFT) !is 0) alignment = DWT.LEFT; | |
| 2507 if ((alignment & DWT.RIGHT) !is 0) alignment = DWT.RIGHT; | |
| 2508 if (this.alignment is alignment) return; | |
| 2509 freeRuns(); | |
| 2510 this.alignment = alignment; | |
| 2511 } | |
| 2512 | |
| 2513 /** | |
| 2514 * Sets the ascent of the receiver. The ascent is distance in pixels | |
| 2515 * from the baseline to the top of the line and it is applied to all | |
| 2516 * lines. The default value is <code>-1</code> which means that the | |
| 2517 * ascent is calculated from the line fonts. | |
| 2518 * | |
| 2519 * @param ascent the new ascent | |
| 2520 * | |
| 2521 * @exception IllegalArgumentException <ul> | |
| 2522 * <li>ERROR_INVALID_ARGUMENT - if the ascent is less than <code>-1</code></li> | |
| 2523 * </ul> | |
| 2524 * @exception DWTException <ul> | |
| 2525 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2526 * </ul> | |
| 2527 * | |
| 2528 * @see #setDescent(int) | |
| 2529 * @see #getLineMetrics(int) | |
| 2530 */ | |
| 2531 public void setAscent(int ascent) { | |
| 2532 checkLayout(); | |
| 2533 if (ascent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2534 if (this.ascent is ascent) return; | |
| 2535 freeRuns(); | |
| 2536 this.ascent = ascent; | |
| 2537 } | |
| 2538 | |
| 2539 /** | |
| 2540 * Sets the descent of the receiver. The descent is distance in pixels | |
| 2541 * from the baseline to the bottom of the line and it is applied to all | |
| 2542 * lines. The default value is <code>-1</code> which means that the | |
| 2543 * descent is calculated from the line fonts. | |
| 2544 * | |
| 2545 * @param descent the new descent | |
| 2546 * | |
| 2547 * @exception IllegalArgumentException <ul> | |
| 2548 * <li>ERROR_INVALID_ARGUMENT - if the descent is less than <code>-1</code></li> | |
| 2549 * </ul> | |
| 2550 * @exception DWTException <ul> | |
| 2551 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2552 * </ul> | |
| 2553 * | |
| 2554 * @see #setAscent(int) | |
| 2555 * @see #getLineMetrics(int) | |
| 2556 */ | |
| 2557 public void setDescent(int descent) { | |
| 2558 checkLayout(); | |
| 2559 if (descent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2560 if (this.descent is descent) return; | |
| 2561 freeRuns(); | |
| 2562 this.descent = descent; | |
| 2563 } | |
| 2564 | |
| 2565 /** | |
| 2566 * Sets the default font which will be used by the receiver | |
| 2567 * to draw and measure text. If the | |
| 2568 * argument is null, then a default font appropriate | |
| 2569 * for the platform will be used instead. Note that a text | |
| 2570 * style can override the default font. | |
| 2571 * | |
| 2572 * @param font the new font for the receiver, or null to indicate a default font | |
| 2573 * | |
| 2574 * @exception IllegalArgumentException <ul> | |
| 2575 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> | |
| 2576 * </ul> | |
| 2577 * @exception DWTException <ul> | |
| 2578 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2579 * </ul> | |
| 2580 */ | |
| 2581 public void setFont (Font font) { | |
| 2582 checkLayout(); | |
| 2583 if (font !is null && font.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 213 | 2584 Font oldFont = this.font; |
| 2585 if (oldFont is font) return; | |
| 2586 this.font = font; | |
| 2587 if (oldFont !is null && oldFont.opEquals(font)) return; | |
| 29 | 2588 freeRuns(); |
| 2589 } | |
| 2590 | |
| 2591 /** | |
| 2592 * Sets the indent of the receiver. This indent it applied of the first line of | |
| 2593 * each paragraph. | |
| 2594 * | |
| 2595 * @param indent new indent | |
| 2596 * | |
| 2597 * @exception DWTException <ul> | |
| 2598 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2599 * </ul> | |
| 2600 * | |
| 2601 * @since 3.2 | |
| 2602 */ | |
| 2603 public void setIndent (int indent) { | |
| 2604 checkLayout(); | |
| 2605 if (indent < 0) return; | |
| 2606 if (this.indent is indent) return; | |
| 2607 freeRuns(); | |
| 2608 this.indent = indent; | |
| 2609 } | |
| 2610 | |
| 2611 /** | |
| 2612 * Sets the justification of the receiver. Note that the receiver's | |
| 2613 * width must be set in order to use justification. | |
| 2614 * | |
| 2615 * @param justify new justify | |
| 2616 * | |
| 2617 * @exception DWTException <ul> | |
| 2618 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2619 * </ul> | |
| 2620 * | |
| 2621 * @since 3.2 | |
| 2622 */ | |
| 2623 public void setJustify (bool justify) { | |
| 2624 checkLayout(); | |
| 2625 if (this.justify is justify) return; | |
| 2626 freeRuns(); | |
| 2627 this.justify = justify; | |
| 2628 } | |
| 2629 | |
| 2630 /** | |
| 2631 * Sets the orientation of the receiver, which must be one | |
| 2632 * of <code>DWT.LEFT_TO_RIGHT</code> or <code>DWT.RIGHT_TO_LEFT</code>. | |
| 2633 * | |
| 2634 * @param orientation new orientation style | |
| 2635 * | |
| 2636 * @exception DWTException <ul> | |
| 2637 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2638 * </ul> | |
| 2639 */ | |
| 2640 public void setOrientation (int orientation) { | |
| 2641 checkLayout(); | |
| 2642 int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; | |
| 2643 orientation &= mask; | |
| 2644 if (orientation is 0) return; | |
| 2645 if ((orientation & DWT.LEFT_TO_RIGHT) !is 0) orientation = DWT.LEFT_TO_RIGHT; | |
| 2646 if (this.orientation is orientation) return; | |
| 2647 this.orientation = orientation; | |
| 2648 freeRuns(); | |
| 2649 } | |
| 2650 | |
| 2651 /** | |
| 2652 * Sets the offsets of the receiver's text segments. Text segments are used to | |
| 2653 * override the default behaviour of the bidirectional algorithm. | |
| 2654 * Bidirectional reordering can happen within a text segment but not | |
| 2655 * between two adjacent segments. | |
| 2656 * <p> | |
| 2657 * Each text segment is determined by two consecutive offsets in the | |
| 2658 * <code>segments</code> arrays. The first element of the array should | |
| 2659 * always be zero and the last one should always be equals to length of | |
| 2660 * the text. | |
| 2661 * </p> | |
| 2662 * | |
| 2663 * @param segments the text segments offset | |
| 2664 * | |
| 2665 * @exception DWTException <ul> | |
| 2666 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2667 * </ul> | |
| 2668 */ | |
| 2669 public void setSegments(int[] segments) { | |
| 2670 checkLayout(); | |
| 2671 if (this.segments is null && segments is null) return; | |
| 2672 if (this.segments !is null && segments !is null) { | |
| 2673 if (this.segments.length is segments.length) { | |
| 2674 int i; | |
| 2675 for (i = 0; i <segments.length; i++) { | |
| 2676 if (this.segments[i] !is segments[i]) break; | |
| 2677 } | |
| 2678 if (i is segments.length) return; | |
| 2679 } | |
| 2680 } | |
| 2681 freeRuns(); | |
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2682 this.segments = segments.dup; |
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2683 |
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2684 // DWT: create the wsegments ... |
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2685 this.wsegments.length = segments.length; |
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2686 uint index8, index16; |
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2687 uint segIndex = 1; |
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2688 while(index8 < text.length ){ |
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2689 int ate8; |
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2690 int ate16; |
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2691 dchar d8 = text[ index8 .. $ ].firstCodePoint( ate8 ); |
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2692 dchar d16 = wtext[ index16 .. $ ].firstCodePoint( ate16 ); |
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2693 assert( d8 is d16 ); |
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2694 assert( ate8 > 0 ); |
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|
2695 assert( ate16 > 0 ); |
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|
2696 index8 += ate8; |
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|
2697 index16 += ate16; |
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2698 if( segments[segIndex] is index8 ){ |
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|
2699 wsegments[segIndex] = index16; |
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2700 } |
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|
2701 } |
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|
2702 assert( index16 is wtext.length ); |
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|
2703 assert( segIndex is segments.length ); |
| 29 | 2704 } |
| 2705 | |
| 2706 /** | |
| 2707 * Sets the line spacing of the receiver. The line spacing | |
| 2708 * is the space left between lines. | |
| 2709 * | |
| 2710 * @param spacing the new line spacing | |
| 2711 * | |
| 2712 * @exception IllegalArgumentException <ul> | |
| 2713 * <li>ERROR_INVALID_ARGUMENT - if the spacing is negative</li> | |
| 2714 * </ul> | |
| 2715 * @exception DWTException <ul> | |
| 2716 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2717 * </ul> | |
| 2718 */ | |
| 2719 public void setSpacing (int spacing) { | |
| 2720 checkLayout(); | |
| 2721 if (spacing < 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2722 if (this.lineSpacing is spacing) return; | |
| 2723 freeRuns(); | |
| 2724 this.lineSpacing = spacing; | |
| 2725 } | |
| 2726 | |
| 2727 /** | |
| 2728 * Sets the style of the receiver for the specified range. Styles previously | |
| 2729 * set for that range will be overwritten. The start and end offsets are | |
| 2730 * inclusive and will be clamped if out of range. | |
| 2731 * | |
| 2732 * @param style the style | |
| 2733 * @param start the start offset | |
| 2734 * @param end the end offset | |
| 2735 * | |
| 2736 * @exception DWTException <ul> | |
| 2737 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2738 * </ul> | |
| 2739 */ | |
| 2740 public void setStyle (TextStyle style, int start, int end) { | |
| 2741 checkLayout(); | |
| 227 | 2742 int length = text.length; |
| 2743 if (length is 0) return; | |
| 29 | 2744 if (start > end) return; |
| 227 | 2745 start = Math.min(Math.max(0, start), length - 1); |
| 2746 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 2747 int low = -1; |
| 213 | 2748 int high = stylesCount; |
| 29 | 2749 while (high - low > 1) { |
| 2750 int index = (high + low) / 2; | |
| 2751 if (styles[index + 1].start > start) { | |
| 2752 high = index; | |
| 2753 } else { | |
| 2754 low = index; | |
| 2755 } | |
| 2756 } | |
| 213 | 2757 if (0 <= high && high < stylesCount) { |
| 29 | 2758 StyleItem item = styles[high]; |
| 2759 if (item.start is start && styles[high + 1].start - 1 is end) { | |
| 2760 if (style is null) { | |
| 2761 if (item.style is null) return; | |
| 2762 } else { | |
| 227 | 2763 if (style.opEquals(item.style)) return; |
| 29 | 2764 } |
| 2765 } | |
| 2766 } | |
| 2767 freeRuns(); | |
| 2768 int modifyStart = high; | |
| 2769 int modifyEnd = modifyStart; | |
| 213 | 2770 while (modifyEnd < stylesCount) { |
| 29 | 2771 if (styles[modifyEnd + 1].start > end) break; |
| 2772 modifyEnd++; | |
| 2773 } | |
| 2774 if (modifyStart is modifyEnd) { | |
| 2775 int styleStart = styles[modifyStart].start; | |
| 2776 int styleEnd = styles[modifyEnd + 1].start - 1; | |
| 2777 if (styleStart is start && styleEnd is end) { | |
| 2778 styles[modifyStart].style = style; | |
| 2779 return; | |
| 2780 } | |
| 2781 if (styleStart !is start && styleEnd !is end) { | |
| 213 | 2782 int newLength = stylesCount + 2; |
| 2783 if (newLength > styles.length) { | |
| 2784 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2785 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2786 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2787 styles = newStyles; | |
| 2788 } | |
| 2789 System.arraycopy(styles, modifyEnd + 1, styles, modifyEnd + 3, stylesCount - modifyEnd - 1); | |
| 29 | 2790 StyleItem item = new StyleItem(); |
| 2791 item.start = start; | |
| 2792 item.style = style; | |
| 213 | 2793 styles[modifyStart + 1] = item; |
| 29 | 2794 item = new StyleItem(); |
| 2795 item.start = end + 1; | |
| 2796 item.style = styles[modifyStart].style; | |
| 213 | 2797 styles[modifyStart + 2] = item; |
| 2798 stylesCount = newLength; | |
| 29 | 2799 return; |
| 2800 } | |
| 2801 } | |
| 2802 if (start is styles[modifyStart].start) modifyStart--; | |
| 2803 if (end is styles[modifyEnd + 1].start - 1) modifyEnd++; | |
| 213 | 2804 int newLength = stylesCount + 1 - (modifyEnd - modifyStart - 1); |
| 2805 if (newLength > styles.length) { | |
| 2806 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2807 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2808 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2809 styles = newStyles; | |
| 2810 } | |
| 2811 System.arraycopy(styles, modifyEnd, styles, modifyStart + 2, stylesCount - modifyEnd); | |
| 29 | 2812 StyleItem item = new StyleItem(); |
| 2813 item.start = start; | |
| 2814 item.style = style; | |
| 213 | 2815 styles[modifyStart + 1] = item; |
| 2816 styles[modifyStart + 2].start = end + 1; | |
| 2817 stylesCount = newLength; | |
| 29 | 2818 } |
| 2819 | |
| 2820 /** | |
| 2821 * Sets the receiver's tab list. Each value in the tab list specifies | |
| 2822 * the space in pixels from the origin of the text layout to the respective | |
| 2823 * tab stop. The last tab stop width is repeated continuously. | |
| 2824 * | |
| 2825 * @param tabs the new tab list | |
| 2826 * | |
| 2827 * @exception DWTException <ul> | |
| 2828 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2829 * </ul> | |
| 2830 */ | |
| 2831 public void setTabs (int[] tabs) { | |
| 2832 checkLayout(); | |
| 2833 if (this.tabs is null && tabs is null) return; | |
| 2834 if (this.tabs !is null && tabs !is null) { | |
| 2835 if (this.tabs.length is tabs.length) { | |
| 2836 int i; | |
| 2837 for (i = 0; i <tabs.length; i++) { | |
| 2838 if (this.tabs[i] !is tabs[i]) break; | |
| 2839 } | |
| 2840 if (i is tabs.length) return; | |
| 2841 } | |
| 2842 } | |
| 2843 freeRuns(); | |
| 2844 this.tabs = tabs; | |
| 2845 } | |
| 2846 | |
| 2847 /** | |
| 2848 * Sets the receiver's text. | |
| 2849 * | |
| 2850 * @param text the new text | |
| 2851 * | |
| 2852 * @exception IllegalArgumentException <ul> | |
| 2853 * <li>ERROR_NULL_ARGUMENT - if the text is null</li> | |
| 2854 * </ul> | |
| 2855 * @exception DWTException <ul> | |
| 2856 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2857 * </ul> | |
| 2858 */ | |
|
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|
2859 public void setText (String text) { |
| 29 | 2860 checkLayout(); |
| 229 | 2861 |
|
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|
2862 //PORTING_CHANGE: allow null argument |
|
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|
2863 //if (text is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
| 227 | 2864 if (text.equals(this.text)) return; |
| 29 | 2865 freeRuns(); |
|
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|
2866 this.text = text.dup; |
|
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|
2867 this.wtext = StrToWCHARs(text); |
| 29 | 2868 styles = new StyleItem[2]; |
| 2869 styles[0] = new StyleItem(); | |
| 2870 styles[1] = new StyleItem(); | |
| 30 | 2871 styles[1].start = text.length; |
| 213 | 2872 stylesCount = 2; |
| 29 | 2873 } |
| 2874 | |
| 2875 /** | |
| 2876 * Sets the line width of the receiver, which determines how | |
| 2877 * text should be wrapped and aligned. The default value is | |
| 2878 * <code>-1</code> which means wrapping is disabled. | |
| 2879 * | |
| 2880 * @param width the new width | |
| 2881 * | |
| 2882 * @exception IllegalArgumentException <ul> | |
| 2883 * <li>ERROR_INVALID_ARGUMENT - if the width is <code>0</code> or less than <code>-1</code></li> | |
| 2884 * </ul> | |
| 2885 * @exception DWTException <ul> | |
| 2886 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2887 * </ul> | |
| 2888 * | |
| 2889 * @see #setAlignment(int) | |
| 2890 */ | |
| 2891 public void setWidth (int width) { | |
| 2892 checkLayout(); | |
| 2893 if (width < -1 || width is 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2894 if (this.wrapWidth is width) return; | |
| 2895 freeRuns(); | |
| 2896 this.wrapWidth = width; | |
| 2897 } | |
| 2898 | |
| 249 | 2899 bool shape (HDC hdc, StyleItem run, wchar[] wchars, int[] glyphCount, int maxGlyphs, SCRIPT_PROPERTIES* sp) { |
| 246 | 2900 bool useCMAPcheck = !sp.fComplex && !run.analysis.fNoGlyphIndex; |
| 2901 if (useCMAPcheck) { | |
|
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diff
changeset
|
2902 scope ushort[] glyphs = new ushort[wchars.length]; |
| 249 | 2903 if (OS.ScriptGetCMap(hdc, run.psc, wchars.ptr, wchars.length, 0, glyphs.ptr) !is OS.S_OK) { |
| 2904 if (run.psc !is null) { | |
| 246 | 2905 OS.ScriptFreeCache(run.psc); |
| 2906 glyphCount[0] = 0; | |
|
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|
2907 int[1] one = 1; |
|
288
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|
2908 *cast(int*)run.psc = 0; |
| 246 | 2909 } |
| 2910 return false; | |
| 2911 } | |
| 2912 } | |
| 30 | 2913 auto hr = OS.ScriptShape(hdc, run.psc, wchars.ptr, wchars.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, glyphCount.ptr); |
| 29 | 2914 run.glyphCount = glyphCount[0]; |
| 246 | 2915 if (useCMAPcheck) return true; |
| 2916 | |
| 29 | 2917 if (hr !is OS.USP_E_SCRIPT_NOT_IN_FONT) { |
| 246 | 2918 if (run.analysis.fNoGlyphIndex) return true; |
| 30 | 2919 SCRIPT_FONTPROPERTIES fp; |
| 29 | 2920 fp.cBytes = SCRIPT_FONTPROPERTIES.sizeof; |
| 30 | 2921 OS.ScriptGetFontProperties(hdc, run.psc, &fp); |
| 2922 ushort[] glyphs = run.glyphs[ 0 .. glyphCount[0] ]; | |
| 29 | 2923 int i; |
| 2924 for (i = 0; i < glyphs.length; i++) { | |
| 2925 if (glyphs[i] is fp.wgDefault) break; | |
| 2926 } | |
| 2927 if (i is glyphs.length) return true; | |
| 2928 } | |
| 30 | 2929 if (run.psc !is null) { |
| 29 | 2930 OS.ScriptFreeCache(run.psc); |
| 2931 glyphCount[0] = 0; | |
|
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|
2932 *cast(int*)run.psc = 0; |
| 29 | 2933 } |
| 2934 run.glyphCount = 0; | |
| 2935 return false; | |
| 2936 } | |
| 2937 | |
| 213 | 2938 |
| 29 | 2939 /* |
| 2940 * Generate glyphs for one Run. | |
| 2941 */ | |
| 2942 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
|
2943 int[1] buffer; |
|
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|
2944 wchar[] wchars = segmentsWText[ index8to16[ run.start ] .. index8to16[ run.start + run.length ] ]; |
| 249 | 2945 int maxGlyphs = (wchars.length * 3 / 2) + 16; |
| 30 | 2946 auto hHeap = OS.GetProcessHeap(); |
| 2947 run.glyphs = cast(ushort*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2948 if (run.glyphs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2949 run.clusters = cast(WORD*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2950 if (run.clusters is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2951 run.visAttrs = cast(SCRIPT_VISATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * SCRIPT_VISATTR_SIZEOF); | |
| 2952 if (run.visAttrs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2953 run.psc = cast(SCRIPT_CACHE*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, (void*).sizeof); |
| 30 | 2954 if (run.psc is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 249 | 2955 short script = run.analysis.eScript; |
|
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|
2956 SCRIPT_PROPERTIES sp = *device.scripts[script]; |
|
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|
2957 bool shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, &sp); |
|
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|
2958 int res; |
| 213 | 2959 if (!shapeSucceed) { |
| 249 | 2960 auto hFont = OS.GetCurrentObject(hdc, OS.OBJ_FONT); |
| 2961 auto ssa = cast(SCRIPT_STRING_ANALYSIS*) OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_STRING_ANALYSIS.sizeof); | |
| 2962 auto metaFileDc = OS.CreateEnhMetaFile(hdc, null, null, null); | |
| 2963 auto oldMetaFont = OS.SelectObject(metaFileDc, hFont); | |
| 246 | 2964 int flags = OS.SSA_METAFILE | OS.SSA_FALLBACK | OS.SSA_GLYPHS | OS.SSA_LINK; |
| 249 | 2965 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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|
2966 OS.ScriptStringOut(*ssa, 0, 0, 0, null, 0, 0, false); |
| 246 | 2967 OS.ScriptStringFree(ssa); |
| 2968 } | |
| 2969 OS.HeapFree(hHeap, 0, ssa); | |
| 2970 OS.SelectObject(metaFileDc, oldMetaFont); | |
| 249 | 2971 auto metaFile = OS.CloseEnhMetaFile(metaFileDc); |
| 2972 static extern(Windows) int metaFileEnumProc (HDC hDC, HANDLETABLE* table, ENHMETARECORD* record, int nObj, LPARAM lpData) { | |
|
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|
2973 EMREXTCREATEFONTINDIRECTW* emr_ = cast(EMREXTCREATEFONTINDIRECTW*)lpData; |
| 249 | 2974 OS.MoveMemory(&emr_.emr, record, EMR.sizeof); |
| 2975 switch (emr_.emr.iType) { | |
| 2976 case OS.EMR_EXTCREATEFONTINDIRECTW: | |
| 2977 OS.MoveMemory(emr_, record, EMREXTCREATEFONTINDIRECTW.sizeof); | |
| 2978 break; | |
| 2979 case OS.EMR_EXTTEXTOUTW: | |
| 2980 return 0; | |
|
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|
2981 default: |
| 246 | 2982 } |
| 249 | 2983 return 1; |
| 2984 } | |
|
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2985 |
|
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2986 EMREXTCREATEFONTINDIRECTW emr; |
| 249 | 2987 OS.EnumEnhMetaFile(null, metaFile, &metaFileEnumProc, &emr, null); |
|
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2988 res = OS.DeleteEnhMetaFile(metaFile); |
|
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|
2989 assert( res !is 0 ); |
| 246 | 2990 |
| 249 | 2991 auto newFont = OS.CreateFontIndirectW(&emr.elfw.elfLogFont); |
|
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2992 assert( newFont !is null ); |
|
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2993 |
| 246 | 2994 OS.SelectObject(hdc, newFont); |
|
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|
2995 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, &sp)) is true ) { |
| 246 | 2996 run.fallbackFont = newFont; |
| 2997 } | |
| 2998 if (!shapeSucceed) { | |
| 2999 if (!sp.fComplex) { | |
| 3000 run.analysis.fNoGlyphIndex = true; | |
|
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|
3001 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, &sp)) is true ) { |
| 246 | 3002 run.fallbackFont = newFont; |
| 29 | 3003 } else { |
| 246 | 3004 run.analysis.fNoGlyphIndex = false; |
| 29 | 3005 } |
| 3006 } | |
| 3007 } | |
| 246 | 3008 if (!shapeSucceed) { |
|
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|
3009 if (mLangFontLink2 !is null) { |
|
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|
3010 HANDLE hNewFont; |
|
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3011 int dwCodePages, cchCodePages; |
| 246 | 3012 /* GetStrCodePages() */ |
|
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3013 OS.VtblCall(4, mLangFontLink2, cast(int)wchars.ptr, wchars.length, 0, cast(int)&dwCodePages, cast(int)&cchCodePages); |
| 246 | 3014 /* MapFont() */ |
|
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3015 if (OS.VtblCall(10, mLangFontLink2, cast(int)hdc, dwCodePages, cast(int)wchars[0], cast(int)&hNewFont) is OS.S_OK) { |
| 246 | 3016 LOGFONT logFont; |
| 3017 OS.GetObject( hNewFont, LOGFONT.sizeof, &logFont ); | |
| 3018 /* ReleaseFont() */ | |
| 3019 OS.VtblCall(8, mLangFontLink2, cast(int)hNewFont); | |
| 249 | 3020 auto mLangFont = OS.CreateFontIndirect(&logFont); |
| 246 | 3021 auto oldFont = OS.SelectObject(hdc, mLangFont); |
|
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|
3022 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, &sp)) is true ) { |
| 246 | 3023 run.fallbackFont = mLangFont; |
| 3024 } else { | |
| 3025 OS.SelectObject(hdc, oldFont); | |
| 3026 OS.DeleteObject(mLangFont); | |
| 3027 } | |
| 3028 } | |
| 213 | 3029 } |
| 3030 } | |
| 246 | 3031 if (!shapeSucceed) OS.SelectObject(hdc, hFont); |
| 3032 if (newFont !is run.fallbackFont) OS.DeleteObject(newFont); | |
| 213 | 3033 } |
| 3034 | |
| 3035 if (!shapeSucceed) { | |
| 3036 /* | |
| 3037 * Shape Failed. | |
| 3038 * Give up and shape the run with the default font. | |
| 3039 * Missing glyphs typically will be represent as black boxes in the text. | |
| 3040 */ | |
|
287
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TextLayout with wchar[] segments text and translation tables
Frank Benoit <benoit@tionex.de>
parents:
278
diff
changeset
|
3041 OS.ScriptShape(hdc, run.psc, wchars.ptr, wchars.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, buffer.ptr); |
| 213 | 3042 run.glyphCount = buffer[0]; |
| 3043 } | |
| 3044 int[3] abc; | |
| 30 | 3045 run.advances = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * 4); |
| 3046 if (run.advances is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 3047 run.goffsets = cast(GOFFSET*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * GOFFSET_SIZEOF); | |
| 3048 if (run.goffsets is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 3049 OS.ScriptPlace(hdc, run.psc, run.glyphs, run.glyphCount, run.visAttrs, &run.analysis, run.advances, run.goffsets, cast(ABC*)abc.ptr); |
| 3050 run.width = abc[0] + abc[1] + abc[2]; | |
| 3051 TextStyle style = run.style; | |
| 3052 if (style !is null) { | |
| 3053 OUTLINETEXTMETRIC* lotm = null; | |
| 3054 if (style.underline || style.strikeout) { | |
| 3055 lotm = new OUTLINETEXTMETRIC(); | |
| 3056 if (OS.GetOutlineTextMetrics(hdc, OUTLINETEXTMETRIC.sizeof, lotm) is 0) { | |
| 3057 lotm = null; | |
| 3058 } | |
| 3059 } | |
| 3060 if (style.metrics !is null) { | |
| 3061 GlyphMetrics metrics = style.metrics; | |
| 3062 /* | |
| 3063 * Bug in Windows, on a Japanese machine, Uniscribe returns glyphcount | |
| 3064 * equals zero for FFFC (possibly other unicode code points), the fix | |
| 3065 * is to make sure the glyph is at least one pixel wide. | |
| 3066 */ | |
| 3067 run.width = metrics.width * Math.max (1, run.glyphCount); | |
| 3068 run.ascent = metrics.ascent; | |
| 3069 run.descent = metrics.descent; | |
| 3070 run.leading = 0; | |
| 3071 } else { | |
| 3072 TEXTMETRIC lptm; | |
| 3073 if (lotm !is null) { | |
| 3074 lptm = lotm.otmTextMetrics; | |
| 3075 } else { | |
| 3076 lptm = TEXTMETRIC.init; | |
| 3077 OS.GetTextMetrics(hdc, &lptm); | |
| 3078 } | |
| 3079 run.ascent = lptm.tmAscent; | |
| 3080 run.descent = lptm.tmDescent; | |
| 3081 run.leading = lptm.tmInternalLeading; | |
| 3082 } | |
| 3083 if (lotm !is null) { | |
| 3084 run.underlinePos = lotm.otmsUnderscorePosition; | |
| 3085 run.underlineThickness = Math.max(1, lotm.otmsUnderscoreSize); | |
| 3086 run.strikeoutPos = lotm.otmsStrikeoutPosition; | |
| 3087 run.strikeoutThickness = Math.max(1, lotm.otmsStrikeoutSize); | |
| 3088 } else { | |
| 3089 run.underlinePos = 1; | |
| 3090 run.underlineThickness = 1; | |
| 3091 run.strikeoutPos = run.ascent / 2; | |
| 3092 run.strikeoutThickness = 1; | |
| 3093 } | |
| 3094 run.ascent += style.rise; | |
| 3095 run.descent -= style.rise; | |
| 29 | 3096 } else { |
| 3097 TEXTMETRIC lptm; | |
| 3098 OS.GetTextMetrics(hdc, &lptm); | |
| 3099 run.ascent = lptm.tmAscent; | |
| 3100 run.descent = lptm.tmDescent; | |
| 3101 run.leading = lptm.tmInternalLeading; | |
| 3102 } | |
| 3103 } | |
| 3104 | |
| 3105 int validadeOffset(int offset, int step) { | |
|
278
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Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
3106 offset += segmentsText.getRelativeCodePointOffset( offset, step ); |
| 29 | 3107 if (segments !is null && segments.length > 2) { |
| 3108 for (int i = 0; i < segments.length; i++) { | |
| 3109 if (translateOffset(segments[i]) - 1 is offset) { | |
| 3110 offset += step; | |
| 3111 break; | |
| 3112 } | |
| 3113 } | |
| 3114 } | |
| 3115 return offset; | |
| 3116 } | |
| 3117 | |
| 3118 /** | |
| 3119 * Returns a string containing a concise, human-readable | |
| 3120 * description of the receiver. | |
| 3121 * | |
| 3122 * @return a string representation of the receiver | |
| 3123 */ | |
|
212
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parents:
157
diff
changeset
|
3124 override public String toString () { |
| 29 | 3125 if (isDisposed()) return "TextLayout {*DISPOSED*}"; |
| 3126 return "TextLayout {}"; | |
| 3127 } | |
| 3128 | |
| 3129 int translateOffset(int offset) { | |
| 3130 if (segments is null) return offset; | |
| 3131 int nSegments = segments.length; | |
| 3132 if (nSegments <= 1) return offset; | |
| 227 | 3133 int length = text.length; |
| 3134 if (length is 0) return offset; | |
| 29 | 3135 if (nSegments is 2) { |
| 227 | 3136 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3137 } |
| 3138 for (int i = 0; i < nSegments && offset - i >= segments[i]; i++) { | |
|
278
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Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
3139 offset+=MARK_SIZE; |
| 29 | 3140 } |
| 3141 return offset; | |
| 3142 } | |
| 3143 | |
| 3144 int untranslateOffset(int offset) { | |
| 3145 if (segments is null) return offset; | |
| 3146 int nSegments = segments.length; | |
| 3147 if (nSegments <= 1) return offset; | |
| 227 | 3148 int length = text.length; |
| 3149 if (length is 0) return offset; | |
| 29 | 3150 if (nSegments is 2) { |
| 227 | 3151 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3152 } |
| 3153 for (int i = 0; i < nSegments && offset > segments[i]; i++) { | |
|
278
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Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
3154 offset-=MARK_SIZE; |
| 29 | 3155 } |
| 3156 return offset; | |
| 3157 } | |
| 3158 } |