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