Mercurial > projects > dwt-win
annotate dwt/graphics/TextLayout.d @ 246:fd9c62a2998e
Updater SWT 3.4M7 to 3.4
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 01 Jul 2008 10:15:59 +0200 |
| parents | c853f6513712 |
| children | b3dbd786541a |
| 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 | |
|
31
92c102dd64a3
Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
30
diff
changeset
|
10 * Port to the D programming language: |
|
92c102dd64a3
Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
30
diff
changeset
|
11 * Frank Benoit <benoit@tionex.de> |
| 29 | 12 *******************************************************************************/ |
| 13 module dwt.graphics.TextLayout; | |
| 14 | |
| 15 import dwt.DWT; | |
| 16 import dwt.DWTException; | |
| 17 import dwt.internal.Compatibility; | |
| 18 import dwt.internal.gdip.Gdip; | |
| 213 | 19 |
| 246 | 20 import dwt.internal.win32.EMR; |
| 21 import dwt.internal.win32.EMREXTCREATEFONTINDIRECTW; | |
| 29 | 22 import dwt.internal.win32.OS; |
| 23 | |
| 24 import dwt.graphics.Color; | |
| 25 import dwt.graphics.Device; | |
| 26 import dwt.graphics.Font; | |
| 27 import dwt.graphics.FontMetrics; | |
| 28 import dwt.graphics.GC; | |
| 29 import dwt.graphics.GCData; | |
| 30 import dwt.graphics.GlyphMetrics; | |
| 31 import dwt.graphics.Point; | |
| 32 import dwt.graphics.Rectangle; | |
| 33 import dwt.graphics.Region; | |
| 34 import dwt.graphics.Resource; | |
| 35 import dwt.graphics.TextStyle; | |
| 36 | |
| 37 import tango.text.convert.Format; | |
| 38 import dwt.dwthelper.utils; | |
| 30 | 39 import dwt.dwthelper.System; |
| 29 | 40 |
| 227 | 41 |
| 29 | 42 /** |
| 43 * <code>TextLayout</code> is a graphic object that represents | |
| 44 * styled text. | |
| 45 * <p> | |
| 46 * Instances of this class provide support for drawing, cursor | |
| 47 * navigation, hit testing, text wrapping, alignment, tab expansion | |
| 48 * line breaking, etc. These are aspects required for rendering internationalized text. | |
| 49 * </p><p> | |
| 50 * Application code must explicitly invoke the <code>TextLayout#dispose()</code> | |
| 51 * method to release the operating system resources managed by each instance | |
| 52 * when those instances are no longer required. | |
| 53 * </p> | |
| 54 * | |
| 246 | 55 * @see <a href="http://www.eclipse.org/swt/snippets/#textlayout">TextLayout, TextStyle snippets</a> |
| 56 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: CustomControlExample, StyledText tab</a> | |
| 57 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
| 58 * | |
| 59 * @since 3.0 | |
| 29 | 60 */ |
| 61 public final class TextLayout : Resource { | |
| 227 | 62 |
| 213 | 63 alias Resource.init_ init_; |
| 64 | |
| 227 | 65 /++ |
| 229 | 66 + DWT doku |
| 67 + The styles has at minimum 2 member, each with a start. The last element is the end marker. | |
| 68 + | |
| 69 + invariant{ | |
| 70 + assert( stylesCount >= 2 ); | |
| 71 + assert( stylesCount <= styles.length ); | |
| 72 + assert( styles[stylesCount-1] ); | |
| 73 + assert( styles[stylesCount-1].start is text.length ); | |
| 74 + } | |
| 75 +/ | |
| 227 | 76 |
| 77 | |
| 29 | 78 Font font; |
|
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|
79 String text, segmentsText; |
| 29 | 80 int lineSpacing; |
| 81 int ascent, descent; | |
| 82 int alignment; | |
| 83 int wrapWidth; | |
| 84 int orientation; | |
| 85 int indent; | |
| 86 bool justify; | |
| 87 int[] tabs; | |
| 88 int[] segments; | |
| 89 StyleItem[] styles; | |
| 213 | 90 int stylesCount; |
| 29 | 91 |
| 92 StyleItem[] allRuns; | |
| 93 StyleItem[][] runs; | |
| 94 int[] lineOffset, lineY, lineWidth; | |
| 30 | 95 void* mLangFontLink2; |
| 29 | 96 |
| 97 static const wchar LTR_MARK = '\u200E', RTL_MARK = '\u200F'; | |
| 98 static const int SCRIPT_VISATTR_SIZEOF = 2; | |
| 99 static const int GOFFSET_SIZEOF = 8; | |
| 80 | 100 private static byte[16] CLSID_CMultiLanguage; |
| 101 private static byte[16] IID_IMLangFontLink2; | |
| 102 private static bool static_this_completed = false; | |
| 103 private static void static_this() { | |
| 104 // in case of allready initialized, we can check and leave without lock | |
| 105 if( static_this_completed ){ | |
| 106 return; | |
| 107 } | |
| 108 synchronized { | |
| 109 if( !static_this_completed ){ | |
| 110 OS.IIDFromString("{275c23e2-3747-11d0-9fea-00aa003f8646}\0".toCharArray().ptr, CLSID_CMultiLanguage.ptr); | |
| 111 OS.IIDFromString("{DCCFC162-2B38-11d2-B7EC-00C04F8F5D9A}\0".toCharArray().ptr, IID_IMLangFontLink2.ptr); | |
| 112 static_this_completed = true; | |
| 113 } | |
| 114 } | |
| 29 | 115 } |
| 116 | |
| 213 | 117 /* IME has a copy of these constants */ |
| 118 static const int UNDERLINE_IME_DOT = 1 << 16; | |
| 119 static const int UNDERLINE_IME_DASH = 2 << 16; | |
| 120 static const int UNDERLINE_IME_THICK = 3 << 16; | |
| 121 | |
| 29 | 122 class StyleItem { |
| 123 TextStyle style; | |
| 124 int start, length; | |
| 125 bool lineBreak, softBreak, tab; | |
| 126 | |
| 127 /*Script cache and analysis */ | |
| 128 SCRIPT_ANALYSIS analysis; | |
| 129 SCRIPT_CACHE* psc; | |
| 130 | |
| 131 /*Shape info (malloc when the run is shaped) */ | |
| 132 WORD* glyphs; | |
| 133 int glyphCount; | |
| 134 WORD* clusters; | |
| 135 SCRIPT_VISATTR* visAttrs; | |
| 136 | |
| 137 /*Place info (malloc when the run is placed) */ | |
| 138 int* advances; | |
| 30 | 139 GOFFSET* goffsets; |
| 140 int width; | |
| 141 int ascent; | |
| 142 int descent; | |
| 143 int leading; | |
| 144 int x; | |
| 213 | 145 int underlinePos, underlineThickness; |
| 146 int strikeoutPos, strikeoutThickness; | |
| 29 | 147 |
| 148 /* Justify info (malloc during computeRuns) */ | |
| 149 int* justify; | |
| 150 | |
| 151 /* ScriptBreak */ | |
| 152 SCRIPT_LOGATTR* psla; | |
| 153 | |
| 30 | 154 HFONT fallbackFont; |
| 29 | 155 |
| 156 void free() { | |
| 157 auto hHeap = OS.GetProcessHeap(); | |
| 158 if (psc !is null) { | |
| 159 OS.ScriptFreeCache (psc); | |
| 160 OS.HeapFree(hHeap, 0, psc); | |
| 161 psc = null; | |
| 162 } | |
| 163 if (glyphs !is null) { | |
| 164 OS.HeapFree(hHeap, 0, glyphs); | |
| 165 glyphs = null; | |
| 166 glyphCount = 0; | |
| 167 } | |
| 168 if (clusters !is null) { | |
| 169 OS.HeapFree(hHeap, 0, clusters); | |
| 170 clusters = null; | |
| 171 } | |
| 172 if (visAttrs !is null) { | |
| 173 OS.HeapFree(hHeap, 0, visAttrs); | |
| 174 visAttrs = null; | |
| 175 } | |
| 176 if (advances !is null) { | |
| 177 OS.HeapFree(hHeap, 0, advances); | |
| 178 advances = null; | |
| 179 } | |
| 180 if (goffsets !is null) { | |
| 181 OS.HeapFree(hHeap, 0, goffsets); | |
| 182 goffsets = null; | |
| 183 } | |
| 184 if (justify !is null) { | |
| 185 OS.HeapFree(hHeap, 0, justify); | |
| 186 justify = null; | |
| 187 } | |
| 188 if (psla !is null) { | |
| 189 OS.HeapFree(hHeap, 0, psla); | |
| 190 psla = null; | |
| 191 } | |
| 192 if (fallbackFont !is null) { | |
| 246 | 193 OS.DeleteObject(fallbackFont); |
| 29 | 194 fallbackFont = null; |
| 195 } | |
| 30 | 196 width = 0; |
| 197 ascent = 0; | |
| 198 descent = 0; | |
| 199 x = 0; | |
| 29 | 200 lineBreak = softBreak = false; |
| 201 } | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
202 override public String toString () { |
| 29 | 203 return Format( "StyleItem {{{}, {}}", start, style ); |
| 204 } | |
| 205 } | |
| 206 | |
| 207 /** | |
| 208 * Constructs a new instance of this class on the given device. | |
| 209 * <p> | |
| 210 * You must dispose the text layout when it is no longer required. | |
| 211 * </p> | |
| 212 * | |
| 213 * @param device the device on which to allocate the text layout | |
| 214 * | |
| 215 * @exception IllegalArgumentException <ul> | |
| 216 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 217 * </ul> | |
| 218 * | |
| 219 * @see #dispose() | |
| 220 */ | |
| 221 public this (Device device) { | |
| 80 | 222 static_this(); |
| 213 | 223 super(device); |
| 29 | 224 wrapWidth = ascent = descent = -1; |
| 225 lineSpacing = 0; | |
| 226 orientation = DWT.LEFT_TO_RIGHT; | |
| 227 styles = new StyleItem[2]; | |
| 228 styles[0] = new StyleItem(); | |
| 229 styles[1] = new StyleItem(); | |
| 213 | 230 stylesCount = 2; |
| 29 | 231 text = ""; //$NON-NLS-1$ |
| 30 | 232 void* ppv; |
| 233 OS.OleInitialize(null); | |
| 234 if (OS.CoCreateInstance(CLSID_CMultiLanguage.ptr, null, OS.CLSCTX_INPROC_SERVER, IID_IMLangFontLink2.ptr, cast(void*)&ppv) is OS.S_OK) { | |
| 235 mLangFontLink2 = ppv; | |
| 29 | 236 } |
| 213 | 237 init_(); |
| 29 | 238 } |
| 239 | |
| 240 void breakRun(StyleItem run) { | |
| 30 | 241 if (run.psla !is null) return; |
| 59 | 242 wchar[] chars = StrToWCHARs( 0, segmentsText[ run.start .. run.start + run.length ] ); |
| 30 | 243 auto hHeap = OS.GetProcessHeap(); |
| 244 run.psla = cast(SCRIPT_LOGATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_LOGATTR.sizeof * chars.length); | |
| 245 if (run.psla is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 246 OS.ScriptBreak(chars.ptr, chars.length, &run.analysis, run.psla); | |
| 29 | 247 } |
| 248 | |
| 249 void checkLayout () { | |
| 250 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); | |
| 251 } | |
| 252 | |
| 253 /* | |
| 254 * Compute the runs: itemize, shape, place, and reorder the runs. | |
| 255 * Break paragraphs into lines, wraps the text, and initialize caches. | |
| 256 */ | |
| 257 void computeRuns (GC gc) { | |
| 258 if (runs !is null) return; | |
| 30 | 259 auto hDC = gc !is null ? gc.handle : device.internal_new_GC(null); |
| 260 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 261 allRuns = itemize(); |
| 262 for (int i=0; i<allRuns.length - 1; i++) { | |
| 263 StyleItem run = allRuns[i]; | |
| 264 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 265 shape(srcHdc, run); | |
| 266 } | |
| 30 | 267 SCRIPT_LOGATTR* logAttr; |
| 268 SCRIPT_PROPERTIES* properties; | |
| 29 | 269 int lineWidth = indent, lineStart = 0, lineCount = 1; |
| 270 for (int i=0; i<allRuns.length - 1; i++) { | |
| 271 StyleItem run = allRuns[i]; | |
| 272 if (run.length is 1) { | |
| 273 char ch = segmentsText.charAt(run.start); | |
| 274 switch (ch) { | |
| 275 case '\t': { | |
| 276 run.tab = true; | |
| 277 if (tabs is null) break; | |
| 278 int tabsLength = tabs.length, j; | |
| 279 for (j = 0; j < tabsLength; j++) { | |
| 280 if (tabs[j] > lineWidth) { | |
| 281 run.width = tabs[j] - lineWidth; | |
| 282 break; | |
| 283 } | |
| 284 } | |
| 285 if (j is tabsLength) { | |
| 286 int tabX = tabs[tabsLength-1]; | |
| 287 int lastTabWidth = tabsLength > 1 ? tabs[tabsLength-1] - tabs[tabsLength-2] : tabs[0]; | |
| 288 if (lastTabWidth > 0) { | |
| 289 while (tabX <= lineWidth) tabX += lastTabWidth; | |
| 290 run.width = tabX - lineWidth; | |
| 291 } | |
| 292 } | |
| 293 break; | |
| 294 } | |
| 295 case '\n': { | |
| 296 run.lineBreak = true; | |
| 297 break; | |
| 298 } | |
| 299 case '\r': { | |
| 300 run.lineBreak = true; | |
| 301 StyleItem next = allRuns[i + 1]; | |
| 302 if (next.length !is 0 && segmentsText.charAt(next.start) is '\n') { | |
| 303 run.length += 1; | |
| 304 next.free(); | |
| 246 | 305 StyleItem[] newAllRuns = new StyleItem[allRuns.length - 1]; |
| 306 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 307 System.arraycopy(allRuns, i + 2, newAllRuns, i + 1, allRuns.length - i - 2); | |
| 308 allRuns = newAllRuns; | |
| 29 | 309 } |
| 310 break; | |
| 311 } | |
| 81 | 312 default: |
| 29 | 313 } |
| 314 } | |
| 315 if (wrapWidth !is -1 && lineWidth + run.width > wrapWidth && !run.tab) { | |
| 316 int start = 0; | |
| 317 int[] piDx = new int[run.length]; | |
| 318 if (run.style !is null && run.style.metrics !is null) { | |
| 319 piDx[0] = run.width; | |
| 320 } else { | |
| 30 | 321 OS.ScriptGetLogicalWidths(&run.analysis, run.length, run.glyphCount, run.advances, run.clusters, run.visAttrs, piDx.ptr); |
| 29 | 322 } |
| 323 int width = 0, maxWidth = wrapWidth - lineWidth; | |
| 324 while (width + piDx[start] < maxWidth) { | |
| 325 width += piDx[start++]; | |
| 326 } | |
| 327 int firstStart = start; | |
| 328 int firstIndice = i; | |
| 329 while (i >= lineStart) { | |
| 330 breakRun(run); | |
| 331 while (start >= 0) { | |
| 30 | 332 logAttr = run.psla + start; |
| 333 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 334 if (logAttr.fSoftBreak || logAttr.fWhiteSpace) break; |
| 335 start--; | |
| 336 } | |
| 337 | |
| 338 /* | |
| 339 * Bug in Windows. For some reason Uniscribe sets the fSoftBreak flag for the first letter | |
| 340 * after a letter with an accent. This cause a break line to be set in the middle of a word. | |
| 341 * The fix is to detect the case and ignore fSoftBreak forcing the algorithm keep searching. | |
| 342 */ | |
| 343 if (start is 0 && i !is lineStart && !run.tab) { | |
| 344 if (logAttr.fSoftBreak && !logAttr.fWhiteSpace) { | |
| 30 | 345 properties = device.scripts[run.analysis.eScript]; |
| 346 //OS.MoveMemory(properties, device.scripts[run.analysis.eScript], SCRIPT_PROPERTIES.sizeof); | |
| 29 | 347 int langID = properties.langid; |
| 348 StyleItem pRun = allRuns[i - 1]; | |
| 30 | 349 //OS.MoveMemory(properties, device.scripts[pRun.analysis.eScript], SCRIPT_PROPERTIES.sizeof); |
| 29 | 350 if (properties.langid is langID || langID is OS.LANG_NEUTRAL || properties.langid is OS.LANG_NEUTRAL) { |
| 351 breakRun(pRun); | |
| 30 | 352 logAttr = pRun.psla + (pRun.length - 1); |
| 353 //OS.MoveMemory(logAttr, pRun.psla + ((pRun.length - 1) * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 354 if (!logAttr.fWhiteSpace) start = -1; |
| 355 } | |
| 356 } | |
| 357 } | |
| 358 if (start >= 0 || i is lineStart) break; | |
| 359 run = allRuns[--i]; | |
| 360 start = run.length - 1; | |
| 361 } | |
| 362 if (start is 0 && i !is lineStart && !run.tab) { | |
| 363 run = allRuns[--i]; | |
| 364 } else if (start <= 0 && i is lineStart) { | |
| 213 | 365 if (lineWidth is wrapWidth && firstIndice > 0) { |
| 366 i = firstIndice - 1; | |
| 367 run = allRuns[i]; | |
| 368 start = run.length; | |
| 369 } else { | |
| 370 i = firstIndice; | |
| 371 run = allRuns[i]; | |
| 372 start = Math.max(1, firstStart); | |
| 373 } | |
| 29 | 374 } |
| 375 breakRun(run); | |
| 376 while (start < run.length) { | |
| 30 | 377 logAttr = run.psla + start; |
| 378 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 379 if (!logAttr.fWhiteSpace) break; |
| 380 start++; | |
| 381 } | |
| 382 if (0 < start && start < run.length) { | |
| 383 StyleItem newRun = new StyleItem(); | |
| 384 newRun.start = run.start + start; | |
| 385 newRun.length = run.length - start; | |
| 386 newRun.style = run.style; | |
| 246 | 387 newRun.analysis = cloneScriptAnalysis(run.analysis); |
| 29 | 388 run.free(); |
| 389 run.length = start; | |
| 390 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 246 | 391 run.analysis.fNoGlyphIndex = false; |
| 29 | 392 shape (srcHdc, run); |
| 393 OS.SelectObject(srcHdc, getItemFont(newRun)); | |
| 246 | 394 newRun.analysis.fNoGlyphIndex = false; |
| 29 | 395 shape (srcHdc, newRun); |
| 396 StyleItem[] newAllRuns = new StyleItem[allRuns.length + 1]; | |
| 397 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 398 System.arraycopy(allRuns, i + 1, newAllRuns, i + 2, allRuns.length - i - 1); | |
| 399 allRuns = newAllRuns; | |
| 400 allRuns[i + 1] = newRun; | |
| 401 } | |
| 402 if (i !is allRuns.length - 2) { | |
| 403 run.softBreak = run.lineBreak = true; | |
| 404 } | |
| 405 } | |
| 406 lineWidth += run.width; | |
| 407 if (run.lineBreak) { | |
| 408 lineStart = i + 1; | |
| 409 lineWidth = run.softBreak ? 0 : indent; | |
| 410 lineCount++; | |
| 411 } | |
| 412 } | |
| 413 lineWidth = 0; | |
| 30 | 414 runs = new StyleItem[][](lineCount); |
| 29 | 415 lineOffset = new int[lineCount + 1]; |
| 416 lineY = new int[lineCount + 1]; | |
| 417 this.lineWidth = new int[lineCount]; | |
| 418 int lineRunCount = 0, line = 0; | |
| 419 int ascent = Math.max(0, this.ascent); | |
| 420 int descent = Math.max(0, this.descent); | |
| 421 StyleItem[] lineRuns = new StyleItem[allRuns.length]; | |
| 422 for (int i=0; i<allRuns.length; i++) { | |
| 423 StyleItem run = allRuns[i]; | |
| 424 lineRuns[lineRunCount++] = run; | |
| 425 lineWidth += run.width; | |
| 426 ascent = Math.max(ascent, run.ascent); | |
| 427 descent = Math.max(descent, run.descent); | |
| 428 if (run.lineBreak || i is allRuns.length - 1) { | |
| 429 /* Update the run metrics if the last run is a hard break. */ | |
| 430 if (lineRunCount is 1 && i is allRuns.length - 1) { | |
| 431 TEXTMETRIC lptm; | |
| 432 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 433 OS.GetTextMetrics(srcHdc, &lptm); | |
| 434 run.ascent = lptm.tmAscent; | |
| 435 run.descent = lptm.tmDescent; | |
| 436 ascent = Math.max(ascent, run.ascent); | |
| 437 descent = Math.max(descent, run.descent); | |
| 438 } | |
| 439 runs[line] = new StyleItem[lineRunCount]; | |
| 440 System.arraycopy(lineRuns, 0, runs[line], 0, lineRunCount); | |
| 441 | |
| 442 if (justify && wrapWidth !is -1 && run.softBreak && lineWidth > 0) { | |
| 443 if (line is 0) { | |
| 444 lineWidth += indent; | |
| 445 } else { | |
| 446 StyleItem[] previousLine = runs[line - 1]; | |
| 447 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 448 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 449 lineWidth += indent; | |
| 450 } | |
| 451 } | |
| 30 | 452 auto hHeap = OS.GetProcessHeap(); |
| 29 | 453 int newLineWidth = 0; |
| 454 for (int j = 0; j < runs[line].length; j++) { | |
| 455 StyleItem item = runs[line][j]; | |
| 456 int iDx = item.width * wrapWidth / lineWidth; | |
| 457 if (iDx !is item.width) { | |
| 30 | 458 item.justify = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, item.glyphCount * 4); |
| 459 if (item.justify is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 460 OS.ScriptJustify(item.visAttrs, item.advances, item.glyphCount, iDx - item.width, 2, item.justify); |
| 461 item.width = iDx; | |
| 462 } | |
| 463 newLineWidth += item.width; | |
| 464 } | |
| 465 lineWidth = newLineWidth; | |
| 466 } | |
| 467 this.lineWidth[line] = lineWidth; | |
| 468 | |
| 469 StyleItem lastRun = runs[line][lineRunCount - 1]; | |
| 470 int lastOffset = lastRun.start + lastRun.length; | |
| 471 runs[line] = reorder(runs[line], i is allRuns.length - 1); | |
| 472 lastRun = runs[line][lineRunCount - 1]; | |
| 473 if (run.softBreak && run !is lastRun) { | |
| 474 run.softBreak = run.lineBreak = false; | |
| 475 lastRun.softBreak = lastRun.lineBreak = true; | |
| 476 } | |
| 477 | |
| 478 lineWidth = getLineIndent(line); | |
| 479 for (int j = 0; j < runs[line].length; j++) { | |
| 480 runs[line][j].x = lineWidth; | |
| 481 lineWidth += runs[line][j].width; | |
| 482 } | |
| 483 line++; | |
| 484 lineY[line] = lineY[line - 1] + ascent + descent + lineSpacing; | |
| 485 lineOffset[line] = lastOffset; | |
| 486 lineRunCount = lineWidth = 0; | |
| 487 ascent = Math.max(0, this.ascent); | |
| 488 descent = Math.max(0, this.descent); | |
| 489 } | |
| 490 } | |
| 30 | 491 if (srcHdc !is null) OS.DeleteDC(srcHdc); |
| 29 | 492 if (gc is null) device.internal_dispose_GC(hDC, null); |
| 493 } | |
| 494 | |
| 213 | 495 void destroy () { |
| 29 | 496 freeRuns(); |
| 497 font = null; | |
| 498 text = null; | |
| 499 segmentsText = null; | |
| 500 tabs = null; | |
| 501 styles = null; | |
| 502 runs = null; | |
| 503 lineOffset = null; | |
| 504 lineY = null; | |
| 505 lineWidth = null; | |
| 30 | 506 if (mLangFontLink2 !is null) { |
| 29 | 507 /* Release() */ |
| 508 OS.VtblCall(2, mLangFontLink2); | |
| 30 | 509 mLangFontLink2 = null; |
| 29 | 510 } |
| 511 OS.OleUninitialize(); | |
| 512 } | |
| 513 | |
| 246 | 514 SCRIPT_ANALYSIS cloneScriptAnalysis (SCRIPT_ANALYSIS src) { |
| 515 SCRIPT_ANALYSIS dst = new SCRIPT_ANALYSIS(); | |
| 516 dst.eScript = src.eScript; | |
| 517 dst.fRTL = src.fRTL; | |
| 518 dst.fLayoutRTL = src.fLayoutRTL; | |
| 519 dst.fLinkBefore = src.fLinkBefore; | |
| 520 dst.fLinkAfter = src.fLinkAfter; | |
| 521 dst.fLogicalOrder = src.fLogicalOrder; | |
| 522 dst.fNoGlyphIndex = src.fNoGlyphIndex; | |
| 523 dst.s = new SCRIPT_STATE(); | |
| 524 dst.s.uBidiLevel = src.s.uBidiLevel; | |
| 525 dst.s.fOverrideDirection = src.s.fOverrideDirection; | |
| 526 dst.s.fInhibitSymSwap = src.s.fInhibitSymSwap; | |
| 527 dst.s.fCharShape = src.s.fCharShape; | |
| 528 dst.s.fDigitSubstitute = src.s.fDigitSubstitute; | |
| 529 dst.s.fInhibitLigate = src.s.fInhibitLigate; | |
| 530 dst.s.fDisplayZWG = src.s.fDisplayZWG; | |
| 531 dst.s.fArabicNumContext = src.s.fArabicNumContext; | |
| 532 dst.s.fGcpClusters = src.s.fGcpClusters; | |
| 533 dst.s.fReserved = src.s.fReserved; | |
| 534 dst.s.fEngineReserved = src.s.fEngineReserved; | |
| 535 return dst; | |
| 536 } | |
| 537 | |
| 29 | 538 /** |
| 539 * Draws the receiver's text using the specified GC at the specified | |
| 540 * point. | |
| 541 * | |
| 542 * @param gc the GC to draw | |
| 543 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 544 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 545 * | |
| 546 * @exception DWTException <ul> | |
| 547 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 548 * </ul> | |
| 549 * @exception IllegalArgumentException <ul> | |
| 550 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 551 * </ul> | |
| 552 */ | |
| 553 public void draw (GC gc, int x, int y) { | |
| 554 draw(gc, x, y, -1, -1, null, null); | |
| 555 } | |
| 556 | |
| 557 /** | |
| 558 * Draws the receiver's text using the specified GC at the specified | |
| 559 * point. | |
| 560 * | |
| 561 * @param gc the GC to draw | |
| 562 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 563 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 564 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 565 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 566 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 567 * @param selectionBackground selection background, or NULL to use the system default color | |
| 568 * | |
| 569 * @exception DWTException <ul> | |
| 570 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 571 * </ul> | |
| 572 * @exception IllegalArgumentException <ul> | |
| 573 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 574 * </ul> | |
| 575 */ | |
| 576 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground) { | |
| 577 draw(gc, x, y, selectionStart, selectionEnd, selectionForeground, selectionBackground, 0); | |
| 578 } | |
| 579 | |
| 580 /** | |
| 581 * Draws the receiver's text using the specified GC at the specified | |
| 582 * point. | |
| 583 * <p> | |
| 584 * The parameter <code>flags</code> can include one of <code>DWT.DELIMITER_SELECTION</code> | |
| 585 * or <code>DWT.FULL_SELECTION</code> to specify the selection behavior on all lines except | |
| 586 * for the last line, and can also include <code>DWT.LAST_LINE_SELECTION</code> to extend | |
| 587 * the specified selection behavior to the last line. | |
| 588 * </p> | |
| 589 * @param gc the GC to draw | |
| 590 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 591 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 592 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 593 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 594 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 595 * @param selectionBackground selection background, or NULL to use the system default color | |
| 596 * @param flags drawing options | |
| 597 * | |
| 598 * @exception DWTException <ul> | |
| 599 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 600 * </ul> | |
| 601 * @exception IllegalArgumentException <ul> | |
| 602 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 603 * </ul> | |
| 604 * | |
| 605 * @since 3.3 | |
| 606 */ | |
| 607 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground, int flags) { | |
| 608 checkLayout(); | |
| 609 computeRuns(gc); | |
| 610 if (gc is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 611 if (gc.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 612 if (selectionForeground !is null && selectionForeground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 613 if (selectionBackground !is null && selectionBackground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 30 | 614 int length = text.length; |
| 29 | 615 if (length is 0 && flags is 0) return; |
| 30 | 616 auto hdc = gc.handle; |
| 29 | 617 Rectangle clip = gc.getClipping(); |
| 618 GCData data = gc.data; | |
| 30 | 619 auto gdipGraphics = data.gdipGraphics; |
| 620 auto foreground = data.foreground; | |
| 621 auto alpha = data.alpha; | |
| 622 bool gdip = gdipGraphics !is null && (alpha !is 0xFF || data.foregroundPattern !is null); | |
| 623 HRGN clipRgn; | |
| 29 | 624 float[] lpXform = null; |
| 30 | 625 Gdip.Rect gdipRect; |
| 626 if (gdipGraphics !is null && !gdip) { | |
| 627 auto matrix = Gdip.Matrix_new(1, 0, 0, 1, 0, 0); | |
| 628 if (matrix is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 629 Gdip.Graphics_GetTransform(gdipGraphics, matrix); |
| 30 | 630 auto identity_ = gc.identity(); |
| 631 Gdip.Matrix_Invert(identity_); | |
| 632 Gdip.Matrix_Multiply(matrix, identity_, Gdip.MatrixOrderAppend); | |
| 633 Gdip.Matrix_delete(identity_); | |
| 29 | 634 if (!Gdip.Matrix_IsIdentity(matrix)) { |
| 635 lpXform = new float[6]; | |
| 213 | 636 Gdip.Matrix_GetElements(matrix, lpXform.ptr); |
| 29 | 637 } |
| 638 Gdip.Matrix_delete(matrix); | |
| 639 if ((data.style & DWT.MIRRORED) !is 0 && lpXform !is null) { | |
| 640 gdip = true; | |
| 641 lpXform = null; | |
| 642 } else { | |
| 643 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeNone); | |
| 30 | 644 auto rgn = Gdip.Region_new(); |
| 29 | 645 Gdip.Graphics_GetClip(gdipGraphics, rgn); |
| 646 if (!Gdip.Region_IsInfinite(rgn, gdipGraphics)) { | |
| 647 clipRgn = Gdip.Region_GetHRGN(rgn, gdipGraphics); | |
| 648 } | |
| 649 Gdip.Region_delete(rgn); | |
| 650 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeHalf); | |
| 651 hdc = Gdip.Graphics_GetHDC(gdipGraphics); | |
| 652 } | |
| 653 } | |
|
53
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Gdiplus implemented - test build of dwt.lib successful; updated graphics package as necessary
John Reimer <terminal.node@gmail.com
parents:
48
diff
changeset
|
654 Gdip.Brush foregroundBrush; |
| 30 | 655 int state = 0; |
| 29 | 656 if (gdip) { |
| 657 gc.checkGC(GC.FOREGROUND); | |
| 658 foregroundBrush = gc.getFgBrush(); | |
| 659 } else { | |
| 660 state = OS.SaveDC(hdc); | |
| 661 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 662 OS.SetLayout(hdc, OS.GetLayout(hdc) | OS.LAYOUT_RTL); | |
| 663 } | |
| 664 if (lpXform !is null) { | |
| 665 OS.SetGraphicsMode(hdc, OS.GM_ADVANCED); | |
| 30 | 666 OS.SetWorldTransform(hdc, cast(XFORM*)lpXform.ptr); |
| 29 | 667 } |
| 30 | 668 if (clipRgn !is null) { |
| 29 | 669 OS.SelectClipRgn(hdc, clipRgn); |
| 670 OS.DeleteObject(clipRgn); | |
| 671 } | |
| 672 } | |
| 673 bool hasSelection = selectionStart <= selectionEnd && selectionStart !is -1 && selectionEnd !is -1; | |
| 674 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 675 selectionStart = Math.min(Math.max(0, selectionStart), length - 1); | |
| 676 selectionEnd = Math.min(Math.max(0, selectionEnd), length - 1); | |
| 677 if (selectionForeground is null) selectionForeground = device.getSystemColor(DWT.COLOR_LIST_SELECTION_TEXT); | |
| 678 if (selectionBackground is null) selectionBackground = device.getSystemColor(DWT.COLOR_LIST_SELECTION); | |
| 679 selectionStart = translateOffset(selectionStart); | |
| 680 selectionEnd = translateOffset(selectionEnd); | |
| 681 } | |
| 30 | 682 RECT rect; |
| 213 | 683 Gdip.Brush selBrush; |
| 684 Gdip.Pen selPen; | |
| 685 Gdip.Brush selBrushFg; | |
| 30 | 686 |
| 29 | 687 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { |
| 688 if (gdip) { | |
| 30 | 689 auto bg = selectionBackground.handle; |
| 690 auto argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 691 auto color = Gdip.Color_new(argb); | |
| 213 | 692 selBrush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 693 Gdip.Color_delete(color); |
| 30 | 694 auto fg = selectionForeground.handle; |
| 29 | 695 argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 696 color = Gdip.Color_new(argb); | |
| 213 | 697 selBrushFg = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 698 selPen = cast(Gdip.Pen) Gdip.Pen_new( cast(Gdip.Brush)selBrushFg, 1); | |
| 29 | 699 Gdip.Color_delete(color); |
| 700 } else { | |
| 213 | 701 selBrush = cast(Gdip.Brush)OS.CreateSolidBrush(selectionBackground.handle); |
| 702 selPen = cast(Gdip.Pen)OS.CreatePen(OS.PS_SOLID, 1, selectionForeground.handle); | |
| 29 | 703 } |
| 704 } | |
| 705 int offset = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? -1 : 0; | |
| 706 OS.SetBkMode(hdc, OS.TRANSPARENT); | |
| 707 for (int line=0; line<runs.length; line++) { | |
| 708 int drawX = x + getLineIndent(line); | |
| 709 int drawY = y + lineY[line]; | |
| 710 StyleItem[] lineRuns = runs[line]; | |
| 213 | 711 int lineHeight = lineY[line+1] - lineY[line] - lineSpacing; |
| 29 | 712 if (flags !is 0 && (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0)) { |
| 713 bool extents = false; | |
| 714 if (line is runs.length - 1 && (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 715 extents = true; | |
| 716 } else { | |
| 717 StyleItem run = lineRuns[lineRuns.length - 1]; | |
| 718 if (run.lineBreak && !run.softBreak) { | |
| 719 if (selectionStart <= run.start && run.start <= selectionEnd) extents = true; | |
| 720 } else { | |
| 721 int endOffset = run.start + run.length - 1; | |
| 722 if (selectionStart <= endOffset && endOffset < selectionEnd && (flags & DWT.FULL_SELECTION) !is 0) { | |
| 723 extents = true; | |
| 724 } | |
| 725 } | |
| 726 } | |
| 727 if (extents) { | |
| 728 int width; | |
| 729 if ((flags & DWT.FULL_SELECTION) !is 0) { | |
| 730 width = OS.IsWin95 ? 0x7FFF : 0x6FFFFFF; | |
| 731 } else { | |
| 213 | 732 width = lineHeight / 3; |
| 29 | 733 } |
| 734 if (gdip) { | |
| 213 | 735 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX + lineWidth[line], drawY, width, lineHeight); |
| 29 | 736 } else { |
| 737 OS.SelectObject(hdc, selBrush); | |
| 213 | 738 OS.PatBlt(hdc, drawX + lineWidth[line], drawY, width, lineHeight, OS.PATCOPY); |
| 29 | 739 } |
| 740 } | |
| 741 } | |
| 742 if (drawX > clip.x + clip.width) continue; | |
| 743 if (drawX + lineWidth[line] < clip.x) continue; | |
| 744 int baseline = Math.max(0, this.ascent); | |
| 213 | 745 int lineUnderlinePos = 0; |
| 29 | 746 for (int i = 0; i < lineRuns.length; i++) { |
| 747 baseline = Math.max(baseline, lineRuns[i].ascent); | |
| 213 | 748 lineUnderlinePos = Math.min(lineUnderlinePos, lineRuns[i].underlinePos); |
| 29 | 749 } |
| 750 int alignmentX = drawX; | |
| 751 for (int i = 0; i < lineRuns.length; i++) { | |
| 752 StyleItem run = lineRuns[i]; | |
| 753 if (run.length is 0) continue; | |
| 754 if (drawX > clip.x + clip.width) break; | |
| 755 if (drawX + run.width >= clip.x) { | |
| 756 if (!run.lineBreak || run.softBreak) { | |
| 757 int end = run.start + run.length - 1; | |
| 758 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 759 if (fullSelection) { | |
| 760 if (gdip) { | |
| 213 | 761 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX, drawY, run.width, lineHeight); |
| 29 | 762 } else { |
| 763 OS.SelectObject(hdc, selBrush); | |
| 213 | 764 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 765 } |
| 766 } else { | |
| 767 if (run.style !is null && run.style.background !is null) { | |
| 30 | 768 auto bg = run.style.background.handle; |
| 29 | 769 if (gdip) { |
| 770 int argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 30 | 771 auto color = Gdip.Color_new(argb); |
| 772 auto brush = Gdip.SolidBrush_new(color); | |
| 213 | 773 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)brush, drawX, drawY, run.width, lineHeight); |
| 29 | 774 Gdip.Color_delete(color); |
| 775 Gdip.SolidBrush_delete(brush); | |
| 776 } else { | |
| 30 | 777 auto hBrush = OS.CreateSolidBrush (bg); |
| 778 auto oldBrush = OS.SelectObject(hdc, hBrush); | |
| 213 | 779 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 780 OS.SelectObject(hdc, oldBrush); |
| 781 OS.DeleteObject(hBrush); | |
| 782 } | |
| 783 } | |
| 784 bool partialSelection = hasSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 785 if (partialSelection) { | |
| 786 int selStart = Math.max(selectionStart, run.start) - run.start; | |
| 787 int selEnd = Math.min(selectionEnd, end) - run.start; | |
| 788 int cChars = run.length; | |
| 789 int gGlyphs = run.glyphCount; | |
| 30 | 790 int piX; |
| 791 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 792 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 793 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 794 rect.left = drawX + runX; |
| 795 rect.top = drawY; | |
| 30 | 796 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 797 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 798 rect.right = drawX + runX; |
| 213 | 799 rect.bottom = drawY + lineHeight; |
| 29 | 800 if (gdip) { |
| 213 | 801 if (rect.left > rect.right) { |
| 802 int tmp = rect.left; | |
| 803 rect.left = rect.right; | |
| 804 rect.right = tmp; | |
| 805 } | |
|
53
0405e18fec7f
Gdiplus implemented - test build of dwt.lib successful; updated graphics package as necessary
John Reimer <terminal.node@gmail.com
parents:
48
diff
changeset
|
806 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); |
| 29 | 807 } else { |
| 808 OS.SelectObject(hdc, selBrush); | |
| 809 OS.PatBlt(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); | |
| 810 } | |
| 811 } | |
| 812 } | |
| 813 } | |
| 814 } | |
| 815 drawX += run.width; | |
| 816 } | |
| 213 | 817 RECT* borderClip = null; |
| 29 | 818 drawX = alignmentX; |
| 819 for (int i = 0; i < lineRuns.length; i++) { | |
| 820 StyleItem run = lineRuns[i]; | |
| 821 if (run.length is 0) continue; | |
| 822 if (drawX > clip.x + clip.width) break; | |
| 823 if (drawX + run.width >= clip.x) { | |
| 824 if (!run.tab && (!run.lineBreak || run.softBreak) && !(run.style !is null && run.style.metrics !is null)) { | |
| 825 int end = run.start + run.length - 1; | |
| 826 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 827 bool partialSelection = hasSelection && !fullSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 828 OS.SelectObject(hdc, getItemFont(run)); | |
| 829 int drawRunY = drawY + (baseline - run.ascent); | |
| 830 if (partialSelection) { | |
| 831 int selStart = Math.max(selectionStart, run.start) - run.start; | |
| 832 int selEnd = Math.min(selectionEnd, end) - run.start; | |
| 833 int cChars = run.length; | |
| 834 int gGlyphs = run.glyphCount; | |
| 30 | 835 int piX; |
| 836 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 837 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 838 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 839 rect.left = drawX + runX; |
| 840 rect.top = drawY; | |
| 30 | 841 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 842 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 843 rect.right = drawX + runX; |
| 844 rect.bottom = drawY + lineHeight; | |
| 845 } | |
| 846 if (gdip) { | |
| 847 OS.BeginPath(hdc); | |
| 30 | 848 OS.ScriptTextOut(hdc, run.psc, drawX, drawRunY, 0, null, &run.analysis , null, 0, run.glyphs, run.glyphCount, run.advances, run.justify, run.goffsets); |
| 29 | 849 OS.EndPath(hdc); |
| 850 int count = OS.GetPath(hdc, null, null, 0); | |
| 851 int[] points = new int[count*2]; | |
| 30 | 852 ubyte[] types = new ubyte[count]; |
| 853 OS.GetPath(hdc, cast(POINT*)points.ptr, types.ptr, count); | |
| 29 | 854 for (int typeIndex = 0; typeIndex < types.length; typeIndex++) { |
| 855 int newType = 0; | |
| 856 int type = types[typeIndex] & 0xFF; | |
| 857 switch (type & ~OS.PT_CLOSEFIGURE) { | |
| 858 case OS.PT_MOVETO: newType = Gdip.PathPointTypeStart; break; | |
| 859 case OS.PT_LINETO: newType = Gdip.PathPointTypeLine; break; | |
| 860 case OS.PT_BEZIERTO: newType = Gdip.PathPointTypeBezier; break; | |
| 81 | 861 default: |
| 29 | 862 } |
| 863 if ((type & OS.PT_CLOSEFIGURE) !is 0) newType |= Gdip.PathPointTypeCloseSubpath; | |
| 864 types[typeIndex] = cast(byte)newType; | |
| 865 } | |
| 213 | 866 auto path = Gdip.GraphicsPath_new(cast(Gdip.Point*)points.ptr, types.ptr, count, Gdip.FillModeAlternate); |
| 30 | 867 if (path is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 868 auto brush = foregroundBrush; | |
| 29 | 869 if (fullSelection) { |
|
53
0405e18fec7f
Gdiplus implemented - test build of dwt.lib successful; updated graphics package as necessary
John Reimer <terminal.node@gmail.com
parents:
48
diff
changeset
|
870 brush = cast(Gdip.Brush)selBrushFg; |
| 29 | 871 } else { |
| 872 if (run.style !is null && run.style.foreground !is null) { | |
| 30 | 873 auto fg = run.style.foreground.handle; |
| 29 | 874 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 30 | 875 auto color = Gdip.Color_new(argb); |
|
53
0405e18fec7f
Gdiplus implemented - test build of dwt.lib successful; updated graphics package as necessary
John Reimer <terminal.node@gmail.com
parents:
48
diff
changeset
|
876 brush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 877 Gdip.Color_delete(color); |
| 878 } | |
| 879 } | |
| 880 int gstate = 0; | |
| 881 if (partialSelection) { | |
| 882 gdipRect.X = rect.left; | |
| 883 gdipRect.Y = rect.top; | |
| 884 gdipRect.Width = rect.right - rect.left; | |
| 885 gdipRect.Height = rect.bottom - rect.top; | |
| 886 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 887 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeExclude); |
| 29 | 888 } |
| 889 int antialias = Gdip.Graphics_GetSmoothingMode(gdipGraphics), textAntialias = 0; | |
| 890 int mode = Gdip.Graphics_GetTextRenderingHint(data.gdipGraphics); | |
| 891 switch (mode) { | |
| 892 case Gdip.TextRenderingHintSystemDefault: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 893 case Gdip.TextRenderingHintSingleBitPerPixel: | |
| 894 case Gdip.TextRenderingHintSingleBitPerPixelGridFit: textAntialias = Gdip.SmoothingModeNone; break; | |
| 895 case Gdip.TextRenderingHintAntiAlias: | |
| 896 case Gdip.TextRenderingHintAntiAliasGridFit: | |
| 897 case Gdip.TextRenderingHintClearTypeGridFit: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 81 | 898 default: |
| 29 | 899 } |
| 900 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); | |
| 901 int gstate2 = 0; | |
| 902 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 903 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 904 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 905 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 906 } | |
| 907 Gdip.Graphics_FillPath(gdipGraphics, brush, path); | |
| 908 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 909 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 910 } | |
| 911 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); | |
| 213 | 912 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, brush, null, alpha); |
| 29 | 913 if (partialSelection) { |
| 914 Gdip.Graphics_Restore(gdipGraphics, gstate); | |
| 915 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 916 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeIntersect); |
| 29 | 917 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); |
| 213 | 918 if ((data.style & DWT.MIRRORED) !is 0) { |
| 919 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 920 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 921 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 922 } | |
| 923 Gdip.Graphics_FillPath(gdipGraphics, selBrushFg, path); | |
| 924 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 925 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 926 } | |
| 29 | 927 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); |
| 213 | 928 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, selBrushFg, &rect, alpha); |
| 29 | 929 Gdip.Graphics_Restore(gdipGraphics, gstate); |
| 930 } | |
| 213 | 931 borderClip = drawBorder(gdip, gdipGraphics, x, drawY, lineHeight, foregroundBrush, selBrushFg, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); |
| 29 | 932 Gdip.GraphicsPath_delete(path); |
|
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933 if ( brush !is cast(Gdip.Brush)selBrushFg && brush !is cast(Gdip.Brush)foregroundBrush) |
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934 Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); |
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935 } else { |
| 213 | 936 auto fg = foreground; |
|
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937 if (fullSelection) { |
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938 fg = selectionForeground.handle; |
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939 } else { |
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940 if (run.style !is null && run.style.foreground !is null) fg = run.style.foreground.handle; |
| 29 | 941 } |
| 942 OS.SetTextColor(hdc, fg); | |
| 30 | 943 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 | 944 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)fg, null, alpha); |
| 29 | 945 if (partialSelection && fg !is selectionForeground.handle) { |
| 946 OS.SetTextColor(hdc, selectionForeground.handle); | |
| 30 | 947 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 | 948 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)selectionForeground.handle, &rect, alpha); |
| 29 | 949 } |
| 213 | 950 int selForeground = selectionForeground !is null ? selectionForeground.handle : 0; |
| 951 borderClip = drawBorder(gdip, hdc, x, drawY, lineHeight, cast(void*)foreground, cast(void*)selForeground, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); | |
| 29 | 952 } |
| 953 } | |
| 954 } | |
| 955 drawX += run.width; | |
| 956 } | |
| 957 } | |
| 958 if (gdip) { | |
|
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959 if (selBrush !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrush); |
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960 if (selBrushFg !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrushFg); |
| 213 | 961 if (selPen !is null) Gdip.Pen_delete(selPen); |
| 29 | 962 } else { |
| 963 OS.RestoreDC(hdc, state); | |
| 30 | 964 if (gdipGraphics !is null) Gdip.Graphics_ReleaseHDC(gdipGraphics, hdc); |
| 965 if (selBrush !is null) OS.DeleteObject (selBrush); | |
| 966 if (selPen !is null) OS.DeleteObject (selPen); | |
| 29 | 967 } |
| 968 } | |
| 969 | |
| 213 | 970 void drawLines(bool advance, void* graphics, int x, int lineBaseline, int lineUnderlinePos, int lineBottom, StyleItem[] line, int index, void* color, RECT* clipRect, int alpha) { |
| 971 StyleItem run = line[index]; | |
| 972 TextStyle style = run.style; | |
| 973 if (style is null) return; | |
| 974 if (!style.underline && !style.strikeout) return; | |
| 975 int runX = x + run.x; | |
| 976 int underlineY = lineBaseline - lineUnderlinePos; | |
| 977 int strikeoutY = lineBaseline - run.strikeoutPos; | |
| 978 if (advance) { | |
| 979 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeNone); | |
| 980 auto brush = color; | |
| 981 if (style.underline) { | |
| 982 if (style.underlineColor !is null) { | |
| 983 int fg = style.underlineColor.handle; | |
| 984 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 985 auto gdiColor = Gdip.Color_new(argb); | |
| 986 brush = Gdip.SolidBrush_new(gdiColor); | |
| 987 Gdip.Color_delete(gdiColor); | |
| 988 } | |
| 989 switch (style.underlineStyle) { | |
| 990 case DWT.UNDERLINE_SQUIGGLE: | |
| 991 case DWT.UNDERLINE_ERROR: { | |
| 992 int squigglyThickness = 1; | |
| 993 int squigglyHeight = 2 * squigglyThickness; | |
| 994 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 995 int squigglyX = runX; | |
| 996 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 997 squigglyX = x + line[i - 1].x; | |
| 998 } | |
| 999 int gstate = 0; | |
| 1000 if (clipRect is null) { | |
| 1001 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1002 Gdip.Rect gdipRect; | |
| 1003 gdipRect.X = runX; | |
| 1004 gdipRect.Y = squigglyY; | |
| 1005 gdipRect.Width = run.width + 1; | |
| 1006 gdipRect.Height = squigglyY + squigglyHeight + 1; | |
| 1007 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1008 } | |
| 1009 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1010 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, squigglyThickness); | |
| 1011 Gdip.Graphics_DrawLines(cast(Gdip.Graphics)graphics, pen, cast(Gdip.Point*)points.ptr, points.length / 2); | |
| 1012 Gdip.Pen_delete(pen); | |
| 1013 if (gstate !is 0) Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1014 break; | |
| 1015 } | |
| 1016 case DWT.UNDERLINE_SINGLE: | |
| 1017 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1018 break; | |
| 1019 case DWT.UNDERLINE_DOUBLE: | |
| 1020 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1021 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY + run.underlineThickness * 2, run.width, run.underlineThickness); | |
| 1022 break; | |
| 1023 case UNDERLINE_IME_THICK: | |
| 1024 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX - run.underlineThickness, underlineY, run.width, run.underlineThickness * 2); | |
| 1025 break; | |
| 1026 case UNDERLINE_IME_DOT: | |
| 1027 case UNDERLINE_IME_DASH: { | |
| 1028 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, 1); | |
| 1029 int dashStyle = style.underlineStyle is UNDERLINE_IME_DOT ? Gdip.DashStyleDot : Gdip.DashStyleDash; | |
| 1030 Gdip.Pen_SetDashStyle(pen, dashStyle); | |
| 1031 Gdip.Graphics_DrawLine(cast(Gdip.Graphics)graphics, pen, runX, underlineY, runX + run.width, underlineY); | |
| 1032 Gdip.Pen_delete(pen); | |
| 1033 break; | |
| 1034 } | |
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1035 default: |
| 213 | 1036 } |
| 1037 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1038 } | |
| 1039 if (style.strikeout) { | |
| 1040 if (style.strikeoutColor !is null) { | |
| 1041 int fg = style.strikeoutColor.handle; | |
| 1042 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 1043 auto gdiColor = Gdip.Color_new(argb); | |
| 1044 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1045 Gdip.Color_delete(gdiColor); | |
| 1046 } | |
| 1047 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, strikeoutY, run.width, run.strikeoutThickness); | |
| 1048 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1049 } | |
| 1050 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeHalf); | |
| 1051 } else { | |
| 1052 uint colorRefUnderline = cast(uint)color; | |
| 1053 uint colorRefStrikeout = cast(uint)color; | |
| 1054 int /*long*/ brushUnderline = 0; | |
| 1055 int /*long*/ brushStrikeout = 0; | |
| 1056 RECT rect; | |
| 1057 if (style.underline) { | |
| 1058 if (style.underlineColor !is null) { | |
| 1059 colorRefUnderline = style.underlineColor.handle; | |
| 1060 } | |
| 1061 switch (style.underlineStyle) { | |
| 1062 case DWT.UNDERLINE_SQUIGGLE: | |
| 1063 case DWT.UNDERLINE_ERROR: { | |
| 1064 int squigglyThickness = 1; | |
| 1065 int squigglyHeight = 2 * squigglyThickness; | |
| 1066 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 1067 int squigglyX = runX; | |
| 1068 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 1069 squigglyX = x + line[i - 1].x; | |
| 1070 } | |
| 1071 int state = OS.SaveDC(graphics); | |
| 1072 if (clipRect !is null) { | |
| 1073 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1074 } else { | |
| 1075 OS.IntersectClipRect(graphics, runX, squigglyY, runX + run.width + 1, squigglyY + squigglyHeight + 1); | |
| 1076 } | |
| 1077 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1078 auto pen = OS.CreatePen(OS.PS_SOLID, squigglyThickness, colorRefUnderline); | |
| 1079 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1080 OS.Polyline(graphics, cast(POINT*)points.ptr, points.length / 2); | |
| 1081 int length_ = points.length; | |
| 1082 if (length_ >= 2 && squigglyThickness <= 1) { | |
| 1083 OS.SetPixel (graphics, points[length_ - 2], points[length_ - 1], colorRefUnderline); | |
| 1084 } | |
| 1085 OS.RestoreDC(graphics, state); | |
| 1086 OS.SelectObject(graphics, oldPen); | |
| 1087 OS.DeleteObject(pen); | |
| 1088 break; | |
| 1089 } | |
| 1090 case DWT.UNDERLINE_SINGLE: | |
| 1091 brushUnderline = cast(uint) OS.CreateSolidBrush(colorRefUnderline); | |
| 1092 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1093 if (clipRect !is null) { | |
| 1094 rect.left = Math.max(rect.left, clipRect.left); | |
| 1095 rect.right = Math.min(rect.right, clipRect.right); | |
| 1096 } | |
| 1097 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1098 break; | |
| 1099 case DWT.UNDERLINE_DOUBLE: | |
| 1100 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1101 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1102 if (clipRect !is null) { | |
| 1103 rect.left = Math.max(rect.left, clipRect.left); | |
| 1104 rect.right = Math.min(rect.right, clipRect.right); | |
| 1105 } | |
| 1106 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1107 OS.SetRect(&rect, runX, underlineY + run.underlineThickness * 2, runX + run.width, underlineY + run.underlineThickness * 3); | |
| 1108 if (clipRect !is null) { | |
| 1109 rect.left = Math.max(rect.left, clipRect.left); | |
| 1110 rect.right = Math.min(rect.right, clipRect.right); | |
| 1111 } | |
| 1112 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1113 break; | |
| 1114 case UNDERLINE_IME_THICK: | |
| 1115 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1116 OS.SetRect(&rect, runX, underlineY - run.underlineThickness, runX + run.width, underlineY + run.underlineThickness); | |
| 1117 if (clipRect !is null) { | |
| 1118 rect.left = Math.max(rect.left, clipRect.left); | |
| 1119 rect.right = Math.min(rect.right, clipRect.right); | |
| 1120 } | |
| 1121 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1122 break; | |
| 1123 case UNDERLINE_IME_DASH: | |
| 1124 case UNDERLINE_IME_DOT: { | |
| 1125 underlineY = lineBaseline + run.descent; | |
| 1126 int penStyle = style.underlineStyle is UNDERLINE_IME_DASH ? OS.PS_DASH : OS.PS_DOT; | |
| 1127 auto pen = OS.CreatePen(penStyle, 1, colorRefUnderline); | |
| 1128 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1129 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1130 if (clipRect !is null) { | |
| 1131 rect.left = Math.max(rect.left, clipRect.left); | |
| 1132 rect.right = Math.min(rect.right, clipRect.right); | |
| 1133 } | |
| 1134 OS.MoveToEx(graphics, rect.left, rect.top, null); | |
| 1135 OS.LineTo(graphics, rect.right, rect.top); | |
| 1136 OS.SelectObject(graphics, oldPen); | |
| 1137 OS.DeleteObject(pen); | |
| 1138 break; | |
| 1139 } | |
|
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1140 default: |
| 213 | 1141 } |
| 1142 } | |
| 1143 if (style.strikeout) { | |
| 1144 if (style.strikeoutColor !is null) { | |
| 1145 colorRefStrikeout = style.strikeoutColor.handle; | |
| 1146 } | |
| 1147 if (brushUnderline !is 0 && colorRefStrikeout is colorRefUnderline) { | |
| 1148 brushStrikeout = brushUnderline; | |
| 1149 } else { | |
| 1150 brushStrikeout = cast(int) OS.CreateSolidBrush(colorRefStrikeout); | |
| 1151 } | |
| 1152 OS.SetRect(&rect, runX, strikeoutY, runX + run.width, strikeoutY + run.strikeoutThickness); | |
| 1153 if (clipRect !is null) { | |
| 1154 rect.left = Math.max(rect.left, clipRect.left); | |
| 1155 rect.right = Math.min(rect.right, clipRect.right); | |
| 1156 } | |
| 1157 OS.FillRect(graphics, &rect, cast(void*)brushStrikeout); | |
| 1158 } | |
| 1159 if (brushUnderline !is 0) OS.DeleteObject(cast(void*)brushUnderline); | |
| 1160 if (brushStrikeout !is 0 && brushStrikeout !is brushUnderline) OS.DeleteObject(cast(void*)brushStrikeout); | |
| 1161 } | |
| 1162 } | |
| 1163 | |
| 1164 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) { | |
| 1165 StyleItem run = line[index]; | |
| 1166 TextStyle style = run.style; | |
| 1167 if (style is null) return null; | |
| 1168 if (style.borderStyle is DWT.NONE) return null; | |
| 1169 if (rect !is null) { | |
| 1170 if (clipRect is null) { | |
| 1171 clipRect = new RECT (); | |
| 1172 OS.SetRect(clipRect, -1, rect.top, -1, rect.bottom); | |
| 1173 } | |
| 1174 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1175 if (run.start <= selectionStart && selectionStart <= run.start + run.length) { | |
| 1176 if (run.analysis.fRTL ^ isRTL) { | |
| 1177 clipRect.right = rect.left; | |
| 1178 } else { | |
| 1179 clipRect.left = rect.left; | |
| 1180 } | |
| 1181 } | |
| 1182 if (run.start <= selectionEnd && selectionEnd <= run.start + run.length) { | |
| 1183 if (run.analysis.fRTL ^ isRTL) { | |
| 1184 clipRect.left = rect.right; | |
| 1185 } else { | |
| 1186 clipRect.right = rect.right; | |
| 1187 } | |
| 1188 } | |
| 1189 } | |
| 1190 if (index + 1 >= line.length || !style.isAdherentBorder(line[index + 1].style)) { | |
| 1191 int left = run.x; | |
| 1192 for (int i = index; i > 0 && style.isAdherentBorder(line[i - 1].style); i--) { | |
| 1193 left = line[i - 1].x; | |
| 1194 } | |
| 1195 if (advance) { | |
| 1196 auto brush = color; | |
| 1197 int customColor = -1; | |
| 1198 if (style.borderColor !is null) { | |
| 1199 customColor = style.borderColor.handle; | |
| 1200 } else { | |
| 1201 if (style.foreground !is null) { | |
| 1202 customColor = style.foreground.handle; | |
| 1203 } | |
| 1204 if (fullSelection && clipRect is null) { | |
| 1205 customColor = -1; | |
| 1206 brush = selectionColor; | |
| 1207 } | |
| 1208 } | |
| 1209 if (customColor !is -1) { | |
| 1210 int argb = ((alpha & 0xFF) << 24) | ((customColor >> 16) & 0xFF) | (customColor & 0xFF00) | ((customColor & 0xFF) << 16); | |
| 1211 auto gdiColor = Gdip.Color_new(argb); | |
| 1212 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1213 Gdip.Color_delete(gdiColor); | |
| 1214 } | |
| 1215 int lineWidth = 1; | |
| 1216 int lineStyle = Gdip.DashStyleSolid; | |
| 1217 switch (style.borderStyle) { | |
| 1218 case DWT.BORDER_SOLID: break; | |
| 1219 case DWT.BORDER_DASH: lineStyle = Gdip.DashStyleDash; break; | |
| 1220 case DWT.BORDER_DOT: lineStyle = Gdip.DashStyleDot; break; | |
|
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1221 default: |
| 213 | 1222 } |
| 1223 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, lineWidth); | |
| 1224 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1225 float gdipXOffset = 0.5f, gdipYOffset = 0.5f; | |
| 1226 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, gdipXOffset, gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1227 if (style.borderColor is null && clipRect !is null) { | |
| 1228 int gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1229 if (clipRect.left is -1) clipRect.left = 0; | |
| 1230 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1231 Gdip.Rect gdipRect; | |
| 1232 gdipRect.X = clipRect.left; | |
| 1233 gdipRect.Y = clipRect.top; | |
| 1234 gdipRect.Width = clipRect.right - clipRect.left; | |
| 1235 gdipRect.Height = clipRect.bottom - clipRect.top; | |
| 1236 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeExclude); | |
| 1237 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1238 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1239 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1240 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1241 auto selPen = Gdip.Pen_new(cast(Gdip.Brush)selectionColor, lineWidth); | |
| 1242 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1243 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, selPen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1244 Gdip.Pen_delete(selPen); | |
| 1245 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1246 } else { | |
| 1247 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1248 } | |
| 1249 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, -gdipXOffset, -gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1250 Gdip.Pen_delete(pen); | |
| 1251 if (customColor !is -1) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1252 } else { | |
| 1253 if (style.borderColor !is null) { | |
| 1254 color = cast(void*)style.borderColor.handle; | |
| 1255 } else { | |
| 1256 if (style.foreground !is null) { | |
| 1257 color = cast(void*)style.foreground.handle; | |
| 1258 } | |
| 1259 if (fullSelection && clipRect is null) { | |
| 1260 color = selectionColor; | |
| 1261 } | |
| 1262 } | |
| 1263 int lineWidth = 1; | |
| 1264 int lineStyle = OS.PS_SOLID; | |
| 1265 switch (style.borderStyle) { | |
| 1266 case DWT.BORDER_SOLID: break; | |
| 1267 case DWT.BORDER_DASH: lineStyle = OS.PS_DASH; break; | |
| 1268 case DWT.BORDER_DOT: lineStyle = OS.PS_DOT; break; | |
|
214
a8fed3e56433
Fix link error and added missing switch defaults
Frank Benoit <benoit@tionex.de>
parents:
213
diff
changeset
|
1269 default: |
| 213 | 1270 } |
| 1271 LOGBRUSH logBrush; | |
| 1272 logBrush.lbStyle = OS.BS_SOLID; | |
| 1273 logBrush.lbColor = cast(uint)color; | |
| 1274 auto newPen = OS.ExtCreatePen(lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1275 auto oldPen = OS.SelectObject(graphics, newPen); | |
| 1276 auto oldBrush = OS.SelectObject(graphics, OS.GetStockObject(OS.NULL_BRUSH)); | |
| 1277 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1278 if (style.borderColor is null && clipRect !is null && color !is selectionColor) { | |
| 1279 int state = OS.SaveDC(graphics); | |
| 1280 if (clipRect.left is -1) clipRect.left = 0; | |
| 1281 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1282 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1283 logBrush.lbColor = cast(uint)selectionColor; | |
| 1284 auto selPen = OS.ExtCreatePen (lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1285 OS.SelectObject(graphics, selPen); | |
| 1286 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1287 OS.RestoreDC(graphics, state); | |
| 1288 OS.SelectObject(graphics, newPen); | |
| 1289 OS.DeleteObject(selPen); | |
| 1290 } | |
| 1291 OS.SelectObject(graphics, oldBrush); | |
| 1292 OS.SelectObject(graphics, oldPen); | |
| 1293 OS.DeleteObject(newPen); | |
| 1294 } | |
| 1295 return null; | |
| 1296 } | |
| 1297 return clipRect; | |
| 1298 } | |
| 1299 | |
| 1300 int[] computePolyline(int left, int top, int right, int bottom) { | |
| 1301 int height = bottom - top; // can be any number | |
| 1302 int width = 2 * height; // must be even | |
| 1303 int peaks = Compatibility.ceil(right - left, width); | |
| 1304 if (peaks is 0 && right - left > 2) { | |
| 1305 peaks = 1; | |
| 1306 } | |
| 1307 int length_ = ((2 * peaks) + 1) * 2; | |
| 1308 if (length_ < 0) return new int[0]; | |
| 1309 | |
| 1310 int[] coordinates = new int[length_]; | |
| 1311 for (int i = 0; i < peaks; i++) { | |
| 1312 int index = 4 * i; | |
| 1313 coordinates[index] = left + (width * i); | |
| 1314 coordinates[index+1] = bottom; | |
| 1315 coordinates[index+2] = coordinates[index] + width / 2; | |
| 1316 coordinates[index+3] = top; | |
| 1317 } | |
| 1318 coordinates[length_-2] = left + (width * peaks); | |
| 1319 coordinates[length_-1] = bottom; | |
| 1320 return coordinates; | |
| 1321 } | |
| 1322 | |
| 29 | 1323 void freeRuns () { |
| 1324 if (allRuns is null) return; | |
| 1325 for (int i=0; i<allRuns.length; i++) { | |
| 1326 StyleItem run = allRuns[i]; | |
| 1327 run.free(); | |
| 1328 } | |
| 1329 allRuns = null; | |
| 1330 runs = null; | |
| 1331 segmentsText = null; | |
| 1332 } | |
| 1333 | |
| 1334 /** | |
| 1335 * Returns the receiver's horizontal text alignment, which will be one | |
| 1336 * of <code>DWT.LEFT</code>, <code>DWT.CENTER</code> or | |
| 1337 * <code>DWT.RIGHT</code>. | |
| 1338 * | |
| 1339 * @return the alignment used to positioned text horizontally | |
| 1340 * | |
| 1341 * @exception DWTException <ul> | |
| 1342 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1343 * </ul> | |
| 1344 */ | |
| 1345 public int getAlignment () { | |
| 1346 checkLayout(); | |
| 1347 return alignment; | |
| 1348 } | |
| 1349 | |
| 1350 /** | |
| 1351 * Returns the ascent of the receiver. | |
| 1352 * | |
| 1353 * @return the ascent | |
| 1354 * | |
| 1355 * @exception DWTException <ul> | |
| 1356 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1357 * </ul> | |
| 1358 * | |
| 1359 * @see #getDescent() | |
| 1360 * @see #setDescent(int) | |
| 1361 * @see #setAscent(int) | |
| 1362 * @see #getLineMetrics(int) | |
| 1363 */ | |
| 1364 public int getAscent () { | |
| 1365 checkLayout(); | |
| 1366 return ascent; | |
| 1367 } | |
| 1368 | |
| 1369 /** | |
| 213 | 1370 * Returns the bounds of the receiver. The width returned is either the |
| 1371 * width of the longest line or the width set using {@link TextLayout#setWidth(int)}. | |
| 1372 * To obtain the text bounds of a line use {@link TextLayout#getLineBounds(int)}. | |
| 29 | 1373 * |
| 1374 * @return the bounds of the receiver | |
| 1375 * | |
| 1376 * @exception DWTException <ul> | |
| 1377 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1378 * </ul> | |
| 213 | 1379 * |
| 1380 * @see #setWidth(int) | |
| 1381 * @see #getLineBounds(int) | |
| 29 | 1382 */ |
| 1383 public Rectangle getBounds () { | |
| 1384 checkLayout(); | |
| 1385 computeRuns(null); | |
| 1386 int width = 0; | |
| 1387 if (wrapWidth !is -1) { | |
| 1388 width = wrapWidth; | |
| 1389 } else { | |
| 1390 for (int line=0; line<runs.length; line++) { | |
| 1391 width = Math.max(width, lineWidth[line] + getLineIndent(line)); | |
| 1392 } | |
| 1393 } | |
| 1394 return new Rectangle (0, 0, width, lineY[lineY.length - 1]); | |
| 1395 } | |
| 1396 | |
| 1397 /** | |
| 1398 * Returns the bounds for the specified range of characters. The | |
| 1399 * bounds is the smallest rectangle that encompasses all characters | |
| 1400 * in the range. The start and end offsets are inclusive and will be | |
| 1401 * clamped if out of range. | |
| 1402 * | |
| 1403 * @param start the start offset | |
| 1404 * @param end the end offset | |
| 1405 * @return the bounds of the character range | |
| 1406 * | |
| 1407 * @exception DWTException <ul> | |
| 1408 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1409 * </ul> | |
| 1410 */ | |
| 1411 public Rectangle getBounds (int start, int end) { | |
| 1412 checkLayout(); | |
| 1413 computeRuns(null); | |
| 227 | 1414 int length = text.length; |
| 1415 if (length is 0) return new Rectangle(0, 0, 0, 0); | |
| 29 | 1416 if (start > end) return new Rectangle(0, 0, 0, 0); |
| 227 | 1417 start = Math.min(Math.max(0, start), length - 1); |
| 1418 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 1419 start = translateOffset(start); |
| 1420 end = translateOffset(end); | |
| 1421 int left = 0x7fffffff, right = 0; | |
| 1422 int top = 0x7fffffff, bottom = 0; | |
| 1423 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1424 for (int i = 0; i < allRuns.length - 1; i++) { | |
| 1425 StyleItem run = allRuns[i]; | |
| 1426 int runEnd = run.start + run.length; | |
| 1427 if (runEnd <= start) continue; | |
| 1428 if (run.start > end) break; | |
| 1429 int runLead = run.x; | |
| 1430 int runTrail = run.x + run.width; | |
| 1431 if (run.start <= start && start < runEnd) { | |
| 1432 int cx = 0; | |
| 1433 if (run.style !is null && run.style.metrics !is null) { | |
| 1434 GlyphMetrics metrics = run.style.metrics; | |
| 1435 cx = metrics.width * (start - run.start); | |
| 1436 } else if (!run.tab) { | |
| 30 | 1437 int piX; |
| 1438 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1439 OS.ScriptCPtoX(start - run.start, false, run.length, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1440 cx = isRTL ? run.width - piX : piX; | |
| 29 | 1441 } |
| 1442 if (run.analysis.fRTL ^ isRTL) { | |
| 1443 runTrail = run.x + cx; | |
| 1444 } else { | |
| 1445 runLead = run.x + cx; | |
| 1446 } | |
| 1447 } | |
| 1448 if (run.start <= end && end < runEnd) { | |
| 1449 int cx = run.width; | |
| 1450 if (run.style !is null && run.style.metrics !is null) { | |
| 1451 GlyphMetrics metrics = run.style.metrics; | |
| 1452 cx = metrics.width * (end - run.start + 1); | |
| 1453 } else if (!run.tab) { | |
| 30 | 1454 int piX; |
| 1455 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1456 OS.ScriptCPtoX(end - run.start, true, run.length, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1457 cx = isRTL ? run.width - piX : piX; | |
| 29 | 1458 } |
| 1459 if (run.analysis.fRTL ^ isRTL) { | |
| 1460 runLead = run.x + cx; | |
| 1461 } else { | |
| 1462 runTrail = run.x + cx; | |
| 1463 } | |
| 1464 } | |
| 1465 int lineIndex = 0; | |
| 1466 while (lineIndex < runs.length && lineOffset[lineIndex + 1] <= run.start) { | |
| 1467 lineIndex++; | |
| 1468 } | |
| 1469 left = Math.min(left, runLead); | |
| 1470 right = Math.max(right, runTrail); | |
| 1471 top = Math.min(top, lineY[lineIndex]); | |
| 1472 bottom = Math.max(bottom, lineY[lineIndex + 1] - lineSpacing); | |
| 1473 } | |
| 1474 return new Rectangle(left, top, right - left, bottom - top); | |
| 1475 } | |
| 1476 | |
| 1477 /** | |
| 1478 * Returns the descent of the receiver. | |
| 1479 * | |
| 1480 * @return the descent | |
| 1481 * | |
| 1482 * @exception DWTException <ul> | |
| 1483 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1484 * </ul> | |
| 1485 * | |
| 1486 * @see #getAscent() | |
| 1487 * @see #setAscent(int) | |
| 1488 * @see #setDescent(int) | |
| 1489 * @see #getLineMetrics(int) | |
| 1490 */ | |
| 1491 public int getDescent () { | |
| 1492 checkLayout(); | |
| 1493 return descent; | |
| 1494 } | |
| 1495 | |
| 1496 /** | |
| 1497 * Returns the default font currently being used by the receiver | |
| 1498 * to draw and measure text. | |
| 1499 * | |
| 1500 * @return the receiver's font | |
| 1501 * | |
| 1502 * @exception DWTException <ul> | |
| 1503 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1504 * </ul> | |
| 1505 */ | |
| 1506 public Font getFont () { | |
| 1507 checkLayout(); | |
| 1508 return font; | |
| 1509 } | |
| 1510 | |
| 1511 /** | |
| 1512 * Returns the receiver's indent. | |
| 1513 * | |
| 1514 * @return the receiver's indent | |
| 1515 * | |
| 1516 * @exception DWTException <ul> | |
| 1517 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1518 * </ul> | |
| 1519 * | |
| 1520 * @since 3.2 | |
| 1521 */ | |
| 1522 public int getIndent () { | |
| 1523 checkLayout(); | |
| 1524 return indent; | |
| 1525 } | |
| 1526 | |
| 1527 /** | |
| 1528 * Returns the receiver's justification. | |
| 1529 * | |
| 1530 * @return the receiver's justification | |
| 1531 * | |
| 1532 * @exception DWTException <ul> | |
| 1533 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1534 * </ul> | |
| 1535 * | |
| 1536 * @since 3.2 | |
| 1537 */ | |
| 1538 public bool getJustify () { | |
| 1539 checkLayout(); | |
| 1540 return justify; | |
| 1541 } | |
| 1542 | |
| 30 | 1543 HFONT getItemFont (StyleItem item) { |
| 1544 if (item.fallbackFont !is null) return cast(HFONT) item.fallbackFont; | |
| 29 | 1545 if (item.style !is null && item.style.font !is null) { |
| 1546 return item.style.font.handle; | |
| 1547 } | |
| 1548 if (this.font !is null) { | |
| 1549 return this.font.handle; | |
| 1550 } | |
| 213 | 1551 return device.systemFont.handle; |
| 29 | 1552 } |
| 1553 | |
| 1554 /** | |
| 1555 * Returns the embedding level for the specified character offset. The | |
| 1556 * embedding level is usually used to determine the directionality of a | |
| 1557 * character in bidirectional text. | |
| 1558 * | |
| 1559 * @param offset the character offset | |
| 1560 * @return the embedding level | |
| 1561 * | |
| 1562 * @exception IllegalArgumentException <ul> | |
| 1563 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1564 * </ul> | |
| 1565 * @exception DWTException <ul> | |
| 1566 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1567 */ | |
| 1568 public int getLevel (int offset) { | |
| 1569 checkLayout(); | |
| 1570 computeRuns(null); | |
| 227 | 1571 int length = text.length; |
| 1572 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1573 offset = translateOffset(offset); |
| 1574 for (int i=1; i<allRuns.length; i++) { | |
| 1575 if (allRuns[i].start > offset) { | |
| 1576 return allRuns[i - 1].analysis.s.uBidiLevel; | |
| 1577 } | |
| 1578 } | |
| 1579 return (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? 1 : 0; | |
| 1580 } | |
| 1581 | |
| 1582 /** | |
| 1583 * Returns the bounds of the line for the specified line index. | |
| 1584 * | |
| 1585 * @param lineIndex the line index | |
| 1586 * @return the line bounds | |
| 1587 * | |
| 1588 * @exception IllegalArgumentException <ul> | |
| 1589 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1590 * </ul> | |
| 1591 * @exception DWTException <ul> | |
| 1592 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1593 * </ul> | |
| 1594 */ | |
| 1595 public Rectangle getLineBounds(int lineIndex) { | |
| 1596 checkLayout(); | |
| 1597 computeRuns(null); | |
| 1598 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1599 int x = getLineIndent(lineIndex); | |
| 1600 int y = lineY[lineIndex]; | |
| 1601 int width = lineWidth[lineIndex]; | |
| 1602 int height = lineY[lineIndex + 1] - y - lineSpacing; | |
| 1603 return new Rectangle (x, y, width, height); | |
| 1604 } | |
| 1605 | |
| 1606 /** | |
| 1607 * Returns the receiver's line count. This includes lines caused | |
| 1608 * by wrapping. | |
| 1609 * | |
| 1610 * @return the line count | |
| 1611 * | |
| 1612 * @exception DWTException <ul> | |
| 1613 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1614 * </ul> | |
| 1615 */ | |
| 1616 public int getLineCount () { | |
| 1617 checkLayout(); | |
| 1618 computeRuns(null); | |
| 1619 return runs.length; | |
| 1620 } | |
| 1621 | |
| 1622 int getLineIndent (int lineIndex) { | |
| 1623 int lineIndent = 0; | |
| 1624 if (lineIndex is 0) { | |
| 1625 lineIndent = indent; | |
| 1626 } else { | |
| 1627 StyleItem[] previousLine = runs[lineIndex - 1]; | |
| 1628 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 1629 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 1630 lineIndent = indent; | |
| 1631 } | |
| 1632 } | |
| 1633 if (wrapWidth !is -1) { | |
| 1634 bool partialLine = true; | |
| 1635 if (justify) { | |
| 1636 StyleItem[] lineRun = runs[lineIndex]; | |
| 1637 if (lineRun[lineRun.length - 1].softBreak) { | |
| 1638 partialLine = false; | |
| 1639 } | |
| 1640 } | |
| 1641 if (partialLine) { | |
| 1642 int lineWidth = this.lineWidth[lineIndex] + lineIndent; | |
| 1643 switch (alignment) { | |
| 1644 case DWT.CENTER: lineIndent += (wrapWidth - lineWidth) / 2; break; | |
| 1645 case DWT.RIGHT: lineIndent += wrapWidth - lineWidth; break; | |
| 81 | 1646 default: |
| 29 | 1647 } |
| 1648 } | |
| 1649 } | |
| 1650 return lineIndent; | |
| 1651 } | |
| 1652 | |
| 1653 /** | |
| 1654 * Returns the index of the line that contains the specified | |
| 1655 * character offset. | |
| 1656 * | |
| 1657 * @param offset the character offset | |
| 1658 * @return the line index | |
| 1659 * | |
| 1660 * @exception IllegalArgumentException <ul> | |
| 1661 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1662 * </ul> | |
| 1663 * @exception DWTException <ul> | |
| 1664 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1665 * </ul> | |
| 1666 */ | |
| 1667 public int getLineIndex (int offset) { | |
| 1668 checkLayout(); | |
| 1669 computeRuns(null); | |
| 227 | 1670 int length = text.length; |
| 1671 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1672 offset = translateOffset(offset); |
| 1673 for (int line=0; line<runs.length; line++) { | |
| 1674 if (lineOffset[line + 1] > offset) { | |
| 1675 return line; | |
| 1676 } | |
| 1677 } | |
| 1678 return runs.length - 1; | |
| 1679 } | |
| 1680 | |
| 1681 /** | |
| 1682 * Returns the font metrics for the specified line index. | |
| 1683 * | |
| 1684 * @param lineIndex the line index | |
| 1685 * @return the font metrics | |
| 1686 * | |
| 1687 * @exception IllegalArgumentException <ul> | |
| 1688 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1689 * </ul> | |
| 1690 * @exception DWTException <ul> | |
| 1691 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1692 * </ul> | |
| 1693 */ | |
| 1694 public FontMetrics getLineMetrics (int lineIndex) { | |
| 1695 checkLayout(); | |
| 1696 computeRuns(null); | |
| 1697 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 30 | 1698 auto hDC = device.internal_new_GC(null); |
| 1699 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 1700 TEXTMETRIC lptm; |
| 213 | 1701 OS.SelectObject(srcHdc, font !is null ? font.handle : device.systemFont.handle); |
| 29 | 1702 OS.GetTextMetrics(srcHdc, &lptm); |
| 1703 OS.DeleteDC(srcHdc); | |
| 1704 device.internal_dispose_GC(hDC, null); | |
| 1705 | |
| 1706 int ascent = Math.max(lptm.tmAscent, this.ascent); | |
| 1707 int descent = Math.max(lptm.tmDescent, this.descent); | |
| 1708 int leading = lptm.tmInternalLeading; | |
| 30 | 1709 if (text.length !is 0) { |
| 29 | 1710 StyleItem[] lineRuns = runs[lineIndex]; |
| 1711 for (int i = 0; i<lineRuns.length; i++) { | |
| 1712 StyleItem run = lineRuns[i]; | |
| 1713 if (run.ascent > ascent) { | |
| 1714 ascent = run.ascent; | |
| 1715 leading = run.leading; | |
| 1716 } | |
| 1717 descent = Math.max(descent, run.descent); | |
| 1718 } | |
| 1719 } | |
| 1720 lptm.tmAscent = ascent; | |
| 1721 lptm.tmDescent = descent; | |
| 1722 lptm.tmHeight = ascent + descent; | |
| 1723 lptm.tmInternalLeading = leading; | |
| 1724 lptm.tmAveCharWidth = 0; | |
| 30 | 1725 return FontMetrics.win32_new(&lptm); |
| 29 | 1726 } |
| 1727 | |
| 1728 /** | |
| 1729 * Returns the line offsets. Each value in the array is the | |
| 1730 * offset for the first character in a line except for the last | |
| 1731 * value, which contains the length of the text. | |
| 1732 * | |
| 1733 * @return the line offsets | |
| 1734 * | |
| 1735 * @exception DWTException <ul> | |
| 1736 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1737 * </ul> | |
| 1738 */ | |
| 1739 public int[] getLineOffsets () { | |
| 1740 checkLayout(); | |
| 1741 computeRuns(null); | |
| 1742 int[] offsets = new int[lineOffset.length]; | |
| 1743 for (int i = 0; i < offsets.length; i++) { | |
| 1744 offsets[i] = untranslateOffset(lineOffset[i]); | |
| 1745 } | |
| 1746 return offsets; | |
| 1747 } | |
| 1748 | |
| 1749 /** | |
| 1750 * Returns the location for the specified character offset. The | |
| 1751 * <code>trailing</code> argument indicates whether the offset | |
| 1752 * corresponds to the leading or trailing edge of the cluster. | |
| 1753 * | |
| 1754 * @param offset the character offset | |
| 1755 * @param trailing the trailing flag | |
| 1756 * @return the location of the character offset | |
| 1757 * | |
| 1758 * @exception DWTException <ul> | |
| 1759 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1760 * </ul> | |
| 1761 * | |
| 1762 * @see #getOffset(Point, int[]) | |
| 1763 * @see #getOffset(int, int, int[]) | |
| 1764 */ | |
| 1765 public Point getLocation (int offset, bool trailing) { | |
| 1766 checkLayout(); | |
| 1767 computeRuns(null); | |
| 227 | 1768 int length = text.length; |
| 1769 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1770 length = segmentsText.length; | |
| 29 | 1771 offset = translateOffset(offset); |
| 1772 int line; | |
| 1773 for (line=0; line<runs.length; line++) { | |
| 1774 if (lineOffset[line + 1] > offset) break; | |
| 1775 } | |
| 1776 line = Math.min(line, runs.length - 1); | |
| 227 | 1777 if (offset is length) { |
| 213 | 1778 return new Point(getLineIndent(line) + lineWidth[line], lineY[line]); |
| 1779 } | |
| 1780 int low = -1; | |
| 1781 int high = allRuns.length; | |
| 1782 while (high - low > 1) { | |
| 1783 int index = ((high + low) / 2); | |
| 1784 StyleItem run = allRuns[index]; | |
| 1785 if (run.start > offset) { | |
| 1786 high = index; | |
| 1787 } else if (run.start + run.length <= offset) { | |
| 1788 low = index; | |
| 1789 } else { | |
| 1790 int width; | |
| 1791 if (run.style !is null && run.style.metrics !is null) { | |
| 1792 GlyphMetrics metrics = run.style.metrics; | |
| 1793 width = metrics.width * (offset - run.start + (trailing ? 1 : 0)); | |
| 1794 } else if (run.tab) { | |
| 227 | 1795 width = (trailing || (offset is length)) ? run.width : 0; |
| 213 | 1796 } else { |
| 1797 int runOffset = offset - run.start; | |
| 1798 int cChars = run.length; | |
| 1799 int gGlyphs = run.glyphCount; | |
| 1800 int piX; | |
| 1801 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1802 OS.ScriptCPtoX(runOffset, trailing, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1803 width = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 1804 } |
| 213 | 1805 return new Point(run.x + width, lineY[line]); |
| 29 | 1806 } |
| 1807 } | |
| 213 | 1808 return new Point(0, 0); |
| 29 | 1809 } |
| 1810 | |
| 1811 /** | |
| 1812 * Returns the next offset for the specified offset and movement | |
| 1813 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 1814 * <code>DWT.MOVEMENT_CLUSTER</code>, <code>DWT.MOVEMENT_WORD</code>, | |
| 1815 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 1816 * | |
| 1817 * @param offset the start offset | |
| 1818 * @param movement the movement type | |
| 1819 * @return the next offset | |
| 1820 * | |
| 1821 * @exception IllegalArgumentException <ul> | |
| 1822 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 1823 * </ul> | |
| 1824 * @exception DWTException <ul> | |
| 1825 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1826 * </ul> | |
| 1827 * | |
| 1828 * @see #getPreviousOffset(int, int) | |
| 1829 */ | |
| 1830 public int getNextOffset (int offset, int movement) { | |
| 1831 checkLayout(); | |
| 1832 return _getOffset (offset, movement, true); | |
| 1833 } | |
| 1834 | |
| 1835 int _getOffset(int offset, int movement, bool forward) { | |
| 1836 computeRuns(null); | |
| 227 | 1837 int length = text.length; |
| 1838 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1839 if (forward && offset is length) return length; | |
| 29 | 1840 if (!forward && offset is 0) return 0; |
| 1841 int step = forward ? 1 : -1; | |
| 1842 if ((movement & DWT.MOVEMENT_CHAR) !is 0) return offset + step; | |
| 227 | 1843 length = segmentsText.length; |
| 29 | 1844 offset = translateOffset(offset); |
| 227 | 1845 SCRIPT_LOGATTR* logAttr = new SCRIPT_LOGATTR(); |
| 1846 SCRIPT_PROPERTIES* properties = new SCRIPT_PROPERTIES(); | |
| 29 | 1847 int i = forward ? 0 : allRuns.length - 1; |
| 1848 offset = validadeOffset(offset, step); | |
| 1849 do { | |
| 1850 StyleItem run = allRuns[i]; | |
| 1851 if (run.start <= offset && offset < run.start + run.length) { | |
| 1852 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1853 if (run.tab) return untranslateOffset(run.start); | |
| 227 | 1854 OS.MoveMemory(properties, device.scripts[run.analysis.eScript], SCRIPT_PROPERTIES.sizeof); |
| 29 | 1855 bool isComplex = properties.fNeedsCaretInfo || properties.fNeedsWordBreaking; |
| 1856 if (isComplex) breakRun(run); | |
| 1857 while (run.start <= offset && offset < run.start + run.length) { | |
| 1858 if (isComplex) { | |
| 227 | 1859 OS.MoveMemory(logAttr, run.psla + (offset - run.start), SCRIPT_LOGATTR.sizeof); |
| 29 | 1860 } |
| 1861 switch (movement) { | |
| 1862 case DWT.MOVEMENT_CLUSTER: { | |
| 1863 if (properties.fNeedsCaretInfo) { | |
| 1864 if (!logAttr.fInvalid && logAttr.fCharStop) return untranslateOffset(offset); | |
| 1865 } else { | |
| 1866 return untranslateOffset(offset); | |
| 1867 } | |
| 1868 break; | |
| 1869 } | |
| 1870 case DWT.MOVEMENT_WORD_START: | |
| 1871 case DWT.MOVEMENT_WORD: { | |
| 1872 if (properties.fNeedsWordBreaking) { | |
| 1873 if (!logAttr.fInvalid && logAttr.fWordStop) return untranslateOffset(offset); | |
| 1874 } else { | |
| 1875 if (offset > 0) { | |
| 1876 bool letterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1877 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1878 if (letterOrDigit !is previousLetterOrDigit || !letterOrDigit) { | |
| 1879 if (!Compatibility.isWhitespace(segmentsText.charAt(offset))) { | |
| 1880 return untranslateOffset(offset); | |
| 1881 } | |
| 1882 } | |
| 1883 } | |
| 1884 } | |
| 1885 break; | |
| 1886 } | |
| 1887 case DWT.MOVEMENT_WORD_END: { | |
| 1888 if (offset > 0) { | |
| 1889 bool isLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1890 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1891 if (!isLetterOrDigit && previousLetterOrDigit) { | |
| 1892 return untranslateOffset(offset); | |
| 1893 } | |
| 1894 } | |
| 1895 break; | |
| 1896 } | |
| 81 | 1897 default: |
| 29 | 1898 } |
| 1899 offset = validadeOffset(offset, step); | |
| 1900 } | |
| 1901 } | |
| 1902 i += step; | |
| 227 | 1903 } while (0 <= i && i < allRuns.length - 1 && 0 <= offset && offset < length); |
| 30 | 1904 return forward ? text.length : 0; |
| 29 | 1905 } |
| 1906 | |
| 1907 /** | |
| 1908 * Returns the character offset for the specified point. | |
| 1909 * For a typical character, the trailing argument will be filled in to | |
| 1910 * indicate whether the point is closer to the leading edge (0) or | |
| 1911 * the trailing edge (1). When the point is over a cluster composed | |
| 1912 * of multiple characters, the trailing argument will be filled with the | |
| 1913 * position of the character in the cluster that is closest to | |
| 1914 * the point. | |
| 1915 * | |
| 1916 * @param point the point | |
| 1917 * @param trailing the trailing buffer | |
| 1918 * @return the character offset | |
| 1919 * | |
| 1920 * @exception IllegalArgumentException <ul> | |
| 1921 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1922 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> | |
| 1923 * </ul> | |
| 1924 * @exception DWTException <ul> | |
| 1925 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1926 * </ul> | |
| 1927 * | |
| 1928 * @see #getLocation(int, bool) | |
| 1929 */ | |
| 1930 public int getOffset (Point point, int[] trailing) { | |
| 1931 checkLayout(); | |
| 1932 if (point is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1933 return getOffset (point.x, point.y, trailing) ; | |
| 1934 } | |
| 1935 | |
| 1936 /** | |
| 1937 * Returns the character offset for the specified point. | |
| 1938 * For a typical character, the trailing argument will be filled in to | |
| 1939 * indicate whether the point is closer to the leading edge (0) or | |
| 1940 * the trailing edge (1). When the point is over a cluster composed | |
| 1941 * of multiple characters, the trailing argument will be filled with the | |
| 1942 * position of the character in the cluster that is closest to | |
| 1943 * the point. | |
| 1944 * | |
| 1945 * @param x the x coordinate of the point | |
| 1946 * @param y the y coordinate of 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 * </ul> | |
| 1953 * @exception DWTException <ul> | |
| 1954 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1955 * </ul> | |
| 1956 * | |
| 1957 * @see #getLocation(int, bool) | |
| 1958 */ | |
| 1959 public int getOffset (int x, int y, int[] trailing) { | |
| 1960 checkLayout(); | |
| 1961 computeRuns(null); | |
| 1962 if (trailing !is null && trailing.length < 1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 1963 int line; | |
| 1964 int lineCount = runs.length; | |
| 1965 for (line=0; line<lineCount; line++) { | |
| 1966 if (lineY[line + 1] > y) break; | |
| 1967 } | |
| 1968 line = Math.min(line, runs.length - 1); | |
| 1969 StyleItem[] lineRuns = runs[line]; | |
| 213 | 1970 int lineIndent = getLineIndent(line); |
| 1971 if (x >= lineIndent + lineWidth[line]) x = lineIndent + lineWidth[line] - 1; | |
| 1972 if (x < lineIndent) x = lineIndent; | |
| 1973 int low = -1; | |
| 1974 int high = lineRuns.length; | |
| 1975 while (high - low > 1) { | |
| 1976 int index = ((high + low) / 2); | |
| 1977 StyleItem run = lineRuns[index]; | |
| 1978 if (run.x > x) { | |
| 1979 high = index; | |
| 1980 } else if (run.x + run.width <= x) { | |
| 1981 low = index; | |
| 1982 } else { | |
| 1983 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1984 int xRun = x - run.x; | |
| 29 | 1985 if (run.style !is null && run.style.metrics !is null) { |
| 1986 GlyphMetrics metrics = run.style.metrics; | |
| 1987 if (metrics.width > 0) { | |
| 1988 if (trailing !is null) { | |
| 1989 trailing[0] = (xRun % metrics.width < metrics.width / 2) ? 0 : 1; | |
| 1990 } | |
| 1991 return untranslateOffset(run.start + xRun / metrics.width); | |
| 1992 } | |
| 1993 } | |
| 1994 if (run.tab) { | |
| 213 | 1995 if (trailing !is null) trailing[0] = x < (run.x + run.width / 2) ? 0 : 1; |
| 29 | 1996 return untranslateOffset(run.start); |
| 1997 } | |
| 1998 int cChars = run.length; | |
| 1999 int cGlyphs = run.glyphCount; | |
| 30 | 2000 int piCP; |
| 2001 int piTrailing; | |
| 29 | 2002 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { |
| 2003 xRun = run.width - xRun; | |
| 2004 } | |
| 30 | 2005 int* advances = run.justify !is null ? run.justify : run.advances; |
| 2006 OS.ScriptXtoCP(xRun, cChars, cGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piCP, &piTrailing); | |
| 2007 if (trailing !is null) trailing[0] = piTrailing; | |
| 2008 return untranslateOffset(run.start + piCP); | |
| 29 | 2009 } |
| 2010 } | |
| 2011 if (trailing !is null) trailing[0] = 0; | |
| 2012 return untranslateOffset(lineOffset[line + 1]); | |
| 2013 } | |
| 2014 | |
| 2015 /** | |
| 2016 * Returns the orientation of the receiver. | |
| 2017 * | |
| 2018 * @return the orientation style | |
| 2019 * | |
| 2020 * @exception DWTException <ul> | |
| 2021 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2022 * </ul> | |
| 2023 */ | |
| 2024 public int getOrientation () { | |
| 2025 checkLayout(); | |
| 2026 return orientation; | |
| 2027 } | |
| 2028 | |
| 2029 /** | |
| 2030 * Returns the previous offset for the specified offset and movement | |
| 2031 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 2032 * <code>DWT.MOVEMENT_CLUSTER</code> or <code>DWT.MOVEMENT_WORD</code>, | |
| 2033 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 2034 * | |
| 2035 * @param offset the start offset | |
| 2036 * @param movement the movement type | |
| 2037 * @return the previous offset | |
| 2038 * | |
| 2039 * @exception IllegalArgumentException <ul> | |
| 2040 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 2041 * </ul> | |
| 2042 * @exception DWTException <ul> | |
| 2043 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2044 * </ul> | |
| 2045 * | |
| 2046 * @see #getNextOffset(int, int) | |
| 2047 */ | |
| 2048 public int getPreviousOffset (int offset, int movement) { | |
| 2049 checkLayout(); | |
| 2050 return _getOffset (offset, movement, false); | |
| 2051 } | |
| 2052 | |
| 2053 /** | |
| 2054 * Gets the ranges of text that are associated with a <code>TextStyle</code>. | |
| 2055 * | |
| 2056 * @return the ranges, an array of offsets representing the start and end of each | |
| 2057 * text style. | |
| 2058 * | |
| 2059 * @exception DWTException <ul> | |
| 2060 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2061 * </ul> | |
| 2062 * | |
| 2063 * @see #getStyles() | |
| 2064 * | |
| 2065 * @since 3.2 | |
| 2066 */ | |
| 2067 public int[] getRanges () { | |
| 2068 checkLayout(); | |
| 213 | 2069 int[] result = new int[stylesCount * 2]; |
| 29 | 2070 int count = 0; |
| 213 | 2071 for (int i=0; i<stylesCount - 1; i++) { |
| 29 | 2072 if (styles[i].style !is null) { |
| 2073 result[count++] = styles[i].start; | |
| 2074 result[count++] = styles[i + 1].start - 1; | |
| 2075 } | |
| 2076 } | |
| 2077 if (count !is result.length) { | |
| 2078 int[] newResult = new int[count]; | |
| 2079 System.arraycopy(result, 0, newResult, 0, count); | |
| 2080 result = newResult; | |
| 2081 } | |
| 2082 return result; | |
| 2083 } | |
| 2084 | |
| 2085 /** | |
| 2086 * Returns the text segments offsets of the receiver. | |
| 2087 * | |
| 2088 * @return the text segments offsets | |
| 2089 * | |
| 2090 * @exception DWTException <ul> | |
| 2091 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2092 * </ul> | |
| 2093 */ | |
| 2094 public int[] getSegments () { | |
| 2095 checkLayout(); | |
| 2096 return segments; | |
| 2097 } | |
| 2098 | |
|
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parents:
157
diff
changeset
|
2099 String getSegmentsText() { |
| 29 | 2100 if (segments is null) return text; |
| 2101 int nSegments = segments.length; | |
| 2102 if (nSegments <= 1) return text; | |
| 213 | 2103 int length_ = text.length; |
| 2104 if (length_ is 0) return text; | |
| 29 | 2105 if (nSegments is 2) { |
| 213 | 2106 if (segments[0] is 0 && segments[1] is length_) return text; |
| 29 | 2107 } |
| 213 | 2108 char[] oldChars = new char[length_]; |
| 2109 text.getChars(0, length_, oldChars, 0); | |
| 2110 char[] newChars = new char[length_ + nSegments]; | |
| 29 | 2111 int charCount = 0, segmentCount = 0; |
| 30 | 2112 wchar separator = orientation is DWT.RIGHT_TO_LEFT ? RTL_MARK : LTR_MARK; |
| 213 | 2113 while (charCount < length_) { |
| 29 | 2114 if (segmentCount < nSegments && charCount is segments[segmentCount]) { |
| 2115 newChars[charCount + segmentCount++] = separator; | |
| 2116 } else { | |
| 2117 newChars[charCount + segmentCount] = oldChars[charCount++]; | |
| 2118 } | |
| 2119 } | |
| 2120 if (segmentCount < nSegments) { | |
| 2121 segments[segmentCount] = charCount; | |
| 2122 newChars[charCount + segmentCount++] = separator; | |
| 2123 } | |
| 30 | 2124 return newChars[ 0 .. Math.min(charCount + segmentCount, newChars.length)].dup; |
| 29 | 2125 } |
| 2126 | |
| 2127 /** | |
| 2128 * Returns the line spacing of the receiver. | |
| 2129 * | |
| 2130 * @return the line spacing | |
| 2131 * | |
| 2132 * @exception DWTException <ul> | |
| 2133 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2134 * </ul> | |
| 2135 */ | |
| 2136 public int getSpacing () { | |
| 2137 checkLayout(); | |
| 2138 return lineSpacing; | |
| 2139 } | |
| 2140 | |
| 2141 /** | |
| 2142 * Gets the style of the receiver at the specified character offset. | |
| 2143 * | |
| 2144 * @param offset the text offset | |
| 2145 * @return the style or <code>null</code> if not set | |
| 2146 * | |
| 2147 * @exception IllegalArgumentException <ul> | |
| 2148 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 2149 * </ul> | |
| 2150 * @exception DWTException <ul> | |
| 2151 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2152 * </ul> | |
| 2153 */ | |
| 2154 public TextStyle getStyle (int offset) { | |
| 2155 checkLayout(); | |
| 227 | 2156 int length = text.length; |
| 2157 if (!(0 <= offset && offset < length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 213 | 2158 for (int i=1; i<stylesCount; i++) { |
| 29 | 2159 if (styles[i].start > offset) { |
| 2160 return styles[i - 1].style; | |
| 2161 } | |
| 2162 } | |
| 2163 return null; | |
| 2164 } | |
| 2165 | |
| 2166 /** | |
| 2167 * Gets all styles of the receiver. | |
| 2168 * | |
| 2169 * @return the styles | |
| 2170 * | |
| 2171 * @exception DWTException <ul> | |
| 2172 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2173 * </ul> | |
| 2174 * | |
| 2175 * @see #getRanges() | |
| 2176 * | |
| 2177 * @since 3.2 | |
| 2178 */ | |
| 2179 public TextStyle[] getStyles () { | |
| 2180 checkLayout(); | |
| 213 | 2181 TextStyle[] result = new TextStyle[stylesCount]; |
| 29 | 2182 int count = 0; |
| 213 | 2183 for (int i=0; i<stylesCount; i++) { |
| 29 | 2184 if (styles[i].style !is null) { |
| 2185 result[count++] = styles[i].style; | |
| 2186 } | |
| 2187 } | |
| 2188 if (count !is result.length) { | |
| 2189 TextStyle[] newResult = new TextStyle[count]; | |
| 2190 System.arraycopy(result, 0, newResult, 0, count); | |
| 2191 result = newResult; | |
| 2192 } | |
| 2193 return result; | |
| 2194 } | |
| 2195 | |
| 2196 /** | |
| 2197 * Returns the tab list of the receiver. | |
| 2198 * | |
| 2199 * @return the tab list | |
| 2200 * | |
| 2201 * @exception DWTException <ul> | |
| 2202 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2203 * </ul> | |
| 2204 */ | |
| 2205 public int[] getTabs () { | |
| 2206 checkLayout(); | |
| 2207 return tabs; | |
| 2208 } | |
| 2209 | |
| 2210 /** | |
| 2211 * Gets the receiver's text, which will be an empty | |
| 2212 * string if it has never been set. | |
| 2213 * | |
| 2214 * @return the receiver's text | |
| 2215 * | |
| 2216 * @exception DWTException <ul> | |
| 2217 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2218 * </ul> | |
| 2219 */ | |
|
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Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
2220 public String getText () { |
| 29 | 2221 checkLayout(); |
| 2222 return text; | |
| 2223 } | |
| 2224 | |
| 2225 /** | |
| 2226 * Returns the width of the receiver. | |
| 2227 * | |
| 2228 * @return the width | |
| 2229 * | |
| 2230 * @exception DWTException <ul> | |
| 2231 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2232 * </ul> | |
| 2233 */ | |
| 2234 public int getWidth () { | |
| 2235 checkLayout(); | |
| 2236 return wrapWidth; | |
| 2237 } | |
| 2238 | |
| 2239 /** | |
| 2240 * Returns <code>true</code> if the text layout has been disposed, | |
| 2241 * and <code>false</code> otherwise. | |
| 2242 * <p> | |
| 2243 * This method gets the dispose state for the text layout. | |
| 2244 * When a text layout has been disposed, it is an error to | |
| 2245 * invoke any other method using the text layout. | |
| 2246 * </p> | |
| 2247 * | |
| 2248 * @return <code>true</code> when the text layout is disposed and <code>false</code> otherwise | |
| 2249 */ | |
|
48
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Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
31
diff
changeset
|
2250 override public bool isDisposed () { |
| 29 | 2251 return device is null; |
| 2252 } | |
| 2253 | |
| 2254 /* | |
| 2255 * Itemize the receiver text | |
| 2256 */ | |
| 2257 StyleItem[] itemize () { | |
| 2258 segmentsText = getSegmentsText(); | |
| 227 | 2259 int length = segmentsText.length; |
| 30 | 2260 SCRIPT_CONTROL scriptControl; |
| 2261 SCRIPT_STATE scriptState; | |
| 227 | 2262 final int MAX_ITEM = length + 1; |
| 29 | 2263 |
| 2264 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 2265 scriptState.uBidiLevel = 1; | |
| 2266 scriptState.fArabicNumContext = true; | |
| 30 | 2267 SCRIPT_DIGITSUBSTITUTE psds; |
| 2268 OS.ScriptRecordDigitSubstitution(OS.LOCALE_USER_DEFAULT, &psds); | |
| 2269 OS.ScriptApplyDigitSubstitution(&psds, &scriptControl, &scriptState); | |
| 29 | 2270 } |
| 2271 | |
| 30 | 2272 auto hHeap = OS.GetProcessHeap(); |
| 2273 auto pItems = cast(SCRIPT_ITEM*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, MAX_ITEM * SCRIPT_ITEM.sizeof); | |
| 2274 if (pItems is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2275 int pcItems; | |
| 2276 wchar[] chars = StrToWCHARs( segmentsText ); | |
| 2277 OS.ScriptItemize(chars.ptr, chars.length, MAX_ITEM, &scriptControl, &scriptState, pItems, &pcItems); | |
| 29 | 2278 // if (hr is E_OUTOFMEMORY) //TODO handle it |
| 2279 | |
| 229 | 2280 // Translate the utf16 indices to utf8 indices |
| 2281 int utf8idx = 0; | |
| 2282 SCRIPT_ITEM* si = pItems; | |
| 2283 foreach( uint utf16idx, char c; chars ){ | |
| 2284 if( si.iCharPos is utf16idx ){ | |
| 2285 si.iCharPos = utf8idx; | |
| 2286 si++; | |
| 2287 } | |
| 2288 utf8idx++; | |
| 2289 } | |
| 2290 | |
| 30 | 2291 StyleItem[] runs = merge(pItems, pcItems); |
| 29 | 2292 OS.HeapFree(hHeap, 0, pItems); |
| 2293 return runs; | |
| 2294 } | |
| 2295 | |
| 2296 /* | |
| 2297 * Merge styles ranges and script items | |
| 2298 */ | |
| 30 | 2299 StyleItem[] merge (SCRIPT_ITEM* items, int itemCount) { |
| 213 | 2300 if (styles.length > stylesCount) { |
| 2301 StyleItem[] newStyles = new StyleItem[stylesCount]; | |
| 2302 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2303 styles = newStyles; | |
| 2304 } | |
| 30 | 2305 int count = 0, start = 0, end = segmentsText.length, itemIndex = 0, styleIndex = 0; |
| 213 | 2306 StyleItem[] runs = new StyleItem[itemCount + stylesCount]; |
| 2307 SCRIPT_ITEM* scriptItem = new SCRIPT_ITEM(); | |
| 29 | 2308 bool linkBefore = false; |
| 2309 while (start < end) { | |
| 2310 StyleItem item = new StyleItem(); | |
| 2311 item.start = start; | |
| 2312 item.style = styles[styleIndex].style; | |
| 2313 runs[count++] = item; | |
| 227 | 2314 OS.MoveMemory(scriptItem, (cast(void*)items) + itemIndex * SCRIPT_ITEM.sizeof, SCRIPT_ITEM.sizeof); |
| 29 | 2315 item.analysis = scriptItem.a; |
| 2316 if (linkBefore) { | |
| 2317 item.analysis.fLinkBefore = true; | |
| 2318 linkBefore = false; | |
| 2319 } | |
| 30 | 2320 //scriptItem.a = new SCRIPT_ANALYSIS(); |
| 227 | 2321 OS.MoveMemory(scriptItem, (cast(void*)items) + (itemIndex + 1) * SCRIPT_ITEM.sizeof, SCRIPT_ITEM.sizeof); |
| 29 | 2322 int itemLimit = scriptItem.iCharPos; |
| 2323 int styleLimit = translateOffset(styles[styleIndex + 1].start); | |
| 2324 if (styleLimit <= itemLimit) { | |
| 2325 styleIndex++; | |
| 2326 start = styleLimit; | |
| 2327 if (start < itemLimit && 0 < start && start < end) { | |
| 2328 char pChar = segmentsText.charAt(start - 1); | |
| 2329 char tChar = segmentsText.charAt(start); | |
| 213 | 2330 if (Compatibility.isLetter(pChar) && Compatibility.isLetter(tChar)) { |
| 29 | 2331 item.analysis.fLinkAfter = true; |
| 2332 linkBefore = true; | |
| 2333 } | |
| 2334 } | |
| 2335 } | |
| 2336 if (itemLimit <= styleLimit) { | |
| 2337 itemIndex++; | |
| 2338 start = itemLimit; | |
| 2339 } | |
| 2340 item.length = start - item.start; | |
| 2341 } | |
| 2342 StyleItem item = new StyleItem(); | |
| 2343 item.start = end; | |
| 227 | 2344 OS.MoveMemory(scriptItem, (cast(void*)items) + itemCount * SCRIPT_ITEM.sizeof, SCRIPT_ITEM.sizeof); |
| 29 | 2345 item.analysis = scriptItem.a; |
| 2346 runs[count++] = item; | |
| 2347 if (runs.length !is count) { | |
| 2348 StyleItem[] result = new StyleItem[count]; | |
| 2349 System.arraycopy(runs, 0, result, 0, count); | |
| 2350 return result; | |
| 2351 } | |
| 2352 return runs; | |
| 2353 } | |
| 2354 | |
| 2355 /* | |
| 2356 * Reorder the run | |
| 2357 */ | |
| 2358 StyleItem[] reorder (StyleItem[] runs, bool terminate) { | |
| 30 | 2359 int length_ = runs.length; |
| 2360 if (length_ <= 1) return runs; | |
| 2361 ubyte[] bidiLevels = new ubyte[length_]; | |
| 2362 for (int i=0; i<length_; i++) { | |
| 29 | 2363 bidiLevels[i] = cast(byte)(runs[i].analysis.s.uBidiLevel & 0x1F); |
| 2364 } | |
| 2365 /* | |
| 2366 * Feature in Windows. If the orientation is RTL Uniscribe will | |
| 2367 * resolve the level of line breaks to 1, this can cause the line | |
| 2368 * break to be reorder to the middle of the line. The fix is to set | |
| 2369 * the level to zero to prevent it to be reordered. | |
| 2370 */ | |
| 30 | 2371 StyleItem lastRun = runs[length_ - 1]; |
| 29 | 2372 if (lastRun.lineBreak && !lastRun.softBreak) { |
| 30 | 2373 bidiLevels[length_ - 1] = 0; |
| 29 | 2374 } |
| 30 | 2375 int[] log2vis = new int[length_]; |
| 2376 OS.ScriptLayout(length_, bidiLevels.ptr, null, log2vis.ptr); | |
| 2377 StyleItem[] result = new StyleItem[length_]; | |
| 2378 for (int i=0; i<length_; i++) { | |
| 29 | 2379 result[log2vis[i]] = runs[i]; |
| 2380 } | |
| 2381 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 30 | 2382 if (terminate) length_--; |
| 2383 for (int i = 0; i < length_ / 2 ; i++) { | |
| 29 | 2384 StyleItem tmp = result[i]; |
| 30 | 2385 result[i] = result[length_ - i - 1]; |
| 2386 result[length_ - i - 1] = tmp; | |
| 29 | 2387 } |
| 2388 } | |
| 2389 return result; | |
| 2390 } | |
| 2391 | |
| 2392 /** | |
| 2393 * Sets the text alignment for the receiver. The alignment controls | |
| 2394 * how a line of text is positioned horizontally. The argument should | |
| 2395 * be one of <code>DWT.LEFT</code>, <code>DWT.RIGHT</code> or <code>DWT.CENTER</code>. | |
| 2396 * <p> | |
| 2397 * The default alignment is <code>DWT.LEFT</code>. Note that the receiver's | |
| 2398 * width must be set in order to use <code>DWT.RIGHT</code> or <code>DWT.CENTER</code> | |
| 2399 * alignment. | |
| 2400 * </p> | |
| 2401 * | |
| 2402 * @param alignment the new alignment | |
| 2403 * | |
| 2404 * @exception DWTException <ul> | |
| 2405 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2406 * </ul> | |
| 2407 * | |
| 2408 * @see #setWidth(int) | |
| 2409 */ | |
| 2410 public void setAlignment (int alignment) { | |
| 2411 checkLayout(); | |
| 2412 int mask = DWT.LEFT | DWT.CENTER | DWT.RIGHT; | |
| 2413 alignment &= mask; | |
| 2414 if (alignment is 0) return; | |
| 2415 if ((alignment & DWT.LEFT) !is 0) alignment = DWT.LEFT; | |
| 2416 if ((alignment & DWT.RIGHT) !is 0) alignment = DWT.RIGHT; | |
| 2417 if (this.alignment is alignment) return; | |
| 2418 freeRuns(); | |
| 2419 this.alignment = alignment; | |
| 2420 } | |
| 2421 | |
| 2422 /** | |
| 2423 * Sets the ascent of the receiver. The ascent is distance in pixels | |
| 2424 * from the baseline to the top of the line and it is applied to all | |
| 2425 * lines. The default value is <code>-1</code> which means that the | |
| 2426 * ascent is calculated from the line fonts. | |
| 2427 * | |
| 2428 * @param ascent the new ascent | |
| 2429 * | |
| 2430 * @exception IllegalArgumentException <ul> | |
| 2431 * <li>ERROR_INVALID_ARGUMENT - if the ascent is less than <code>-1</code></li> | |
| 2432 * </ul> | |
| 2433 * @exception DWTException <ul> | |
| 2434 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2435 * </ul> | |
| 2436 * | |
| 2437 * @see #setDescent(int) | |
| 2438 * @see #getLineMetrics(int) | |
| 2439 */ | |
| 2440 public void setAscent(int ascent) { | |
| 2441 checkLayout(); | |
| 2442 if (ascent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2443 if (this.ascent is ascent) return; | |
| 2444 freeRuns(); | |
| 2445 this.ascent = ascent; | |
| 2446 } | |
| 2447 | |
| 2448 /** | |
| 2449 * Sets the descent of the receiver. The descent is distance in pixels | |
| 2450 * from the baseline to the bottom of the line and it is applied to all | |
| 2451 * lines. The default value is <code>-1</code> which means that the | |
| 2452 * descent is calculated from the line fonts. | |
| 2453 * | |
| 2454 * @param descent the new descent | |
| 2455 * | |
| 2456 * @exception IllegalArgumentException <ul> | |
| 2457 * <li>ERROR_INVALID_ARGUMENT - if the descent is less than <code>-1</code></li> | |
| 2458 * </ul> | |
| 2459 * @exception DWTException <ul> | |
| 2460 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2461 * </ul> | |
| 2462 * | |
| 2463 * @see #setAscent(int) | |
| 2464 * @see #getLineMetrics(int) | |
| 2465 */ | |
| 2466 public void setDescent(int descent) { | |
| 2467 checkLayout(); | |
| 2468 if (descent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2469 if (this.descent is descent) return; | |
| 2470 freeRuns(); | |
| 2471 this.descent = descent; | |
| 2472 } | |
| 2473 | |
| 2474 /** | |
| 2475 * Sets the default font which will be used by the receiver | |
| 2476 * to draw and measure text. If the | |
| 2477 * argument is null, then a default font appropriate | |
| 2478 * for the platform will be used instead. Note that a text | |
| 2479 * style can override the default font. | |
| 2480 * | |
| 2481 * @param font the new font for the receiver, or null to indicate a default font | |
| 2482 * | |
| 2483 * @exception IllegalArgumentException <ul> | |
| 2484 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> | |
| 2485 * </ul> | |
| 2486 * @exception DWTException <ul> | |
| 2487 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2488 * </ul> | |
| 2489 */ | |
| 2490 public void setFont (Font font) { | |
| 2491 checkLayout(); | |
| 2492 if (font !is null && font.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 213 | 2493 Font oldFont = this.font; |
| 2494 if (oldFont is font) return; | |
| 2495 this.font = font; | |
| 2496 if (oldFont !is null && oldFont.opEquals(font)) return; | |
| 29 | 2497 freeRuns(); |
| 2498 } | |
| 2499 | |
| 2500 /** | |
| 2501 * Sets the indent of the receiver. This indent it applied of the first line of | |
| 2502 * each paragraph. | |
| 2503 * | |
| 2504 * @param indent new indent | |
| 2505 * | |
| 2506 * @exception DWTException <ul> | |
| 2507 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2508 * </ul> | |
| 2509 * | |
| 2510 * @since 3.2 | |
| 2511 */ | |
| 2512 public void setIndent (int indent) { | |
| 2513 checkLayout(); | |
| 2514 if (indent < 0) return; | |
| 2515 if (this.indent is indent) return; | |
| 2516 freeRuns(); | |
| 2517 this.indent = indent; | |
| 2518 } | |
| 2519 | |
| 2520 /** | |
| 2521 * Sets the justification of the receiver. Note that the receiver's | |
| 2522 * width must be set in order to use justification. | |
| 2523 * | |
| 2524 * @param justify new justify | |
| 2525 * | |
| 2526 * @exception DWTException <ul> | |
| 2527 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2528 * </ul> | |
| 2529 * | |
| 2530 * @since 3.2 | |
| 2531 */ | |
| 2532 public void setJustify (bool justify) { | |
| 2533 checkLayout(); | |
| 2534 if (this.justify is justify) return; | |
| 2535 freeRuns(); | |
| 2536 this.justify = justify; | |
| 2537 } | |
| 2538 | |
| 2539 /** | |
| 2540 * Sets the orientation of the receiver, which must be one | |
| 2541 * of <code>DWT.LEFT_TO_RIGHT</code> or <code>DWT.RIGHT_TO_LEFT</code>. | |
| 2542 * | |
| 2543 * @param orientation new orientation style | |
| 2544 * | |
| 2545 * @exception DWTException <ul> | |
| 2546 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2547 * </ul> | |
| 2548 */ | |
| 2549 public void setOrientation (int orientation) { | |
| 2550 checkLayout(); | |
| 2551 int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; | |
| 2552 orientation &= mask; | |
| 2553 if (orientation is 0) return; | |
| 2554 if ((orientation & DWT.LEFT_TO_RIGHT) !is 0) orientation = DWT.LEFT_TO_RIGHT; | |
| 2555 if (this.orientation is orientation) return; | |
| 2556 this.orientation = orientation; | |
| 2557 freeRuns(); | |
| 2558 } | |
| 2559 | |
| 2560 /** | |
| 2561 * Sets the offsets of the receiver's text segments. Text segments are used to | |
| 2562 * override the default behaviour of the bidirectional algorithm. | |
| 2563 * Bidirectional reordering can happen within a text segment but not | |
| 2564 * between two adjacent segments. | |
| 2565 * <p> | |
| 2566 * Each text segment is determined by two consecutive offsets in the | |
| 2567 * <code>segments</code> arrays. The first element of the array should | |
| 2568 * always be zero and the last one should always be equals to length of | |
| 2569 * the text. | |
| 2570 * </p> | |
| 2571 * | |
| 2572 * @param segments the text segments offset | |
| 2573 * | |
| 2574 * @exception DWTException <ul> | |
| 2575 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2576 * </ul> | |
| 2577 */ | |
| 2578 public void setSegments(int[] segments) { | |
| 2579 checkLayout(); | |
| 2580 if (this.segments is null && segments is null) return; | |
| 2581 if (this.segments !is null && segments !is null) { | |
| 2582 if (this.segments.length is segments.length) { | |
| 2583 int i; | |
| 2584 for (i = 0; i <segments.length; i++) { | |
| 2585 if (this.segments[i] !is segments[i]) break; | |
| 2586 } | |
| 2587 if (i is segments.length) return; | |
| 2588 } | |
| 2589 } | |
| 2590 freeRuns(); | |
| 2591 this.segments = segments; | |
| 2592 } | |
| 2593 | |
| 2594 /** | |
| 2595 * Sets the line spacing of the receiver. The line spacing | |
| 2596 * is the space left between lines. | |
| 2597 * | |
| 2598 * @param spacing the new line spacing | |
| 2599 * | |
| 2600 * @exception IllegalArgumentException <ul> | |
| 2601 * <li>ERROR_INVALID_ARGUMENT - if the spacing is negative</li> | |
| 2602 * </ul> | |
| 2603 * @exception DWTException <ul> | |
| 2604 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2605 * </ul> | |
| 2606 */ | |
| 2607 public void setSpacing (int spacing) { | |
| 2608 checkLayout(); | |
| 2609 if (spacing < 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2610 if (this.lineSpacing is spacing) return; | |
| 2611 freeRuns(); | |
| 2612 this.lineSpacing = spacing; | |
| 2613 } | |
| 2614 | |
| 2615 /** | |
| 2616 * Sets the style of the receiver for the specified range. Styles previously | |
| 2617 * set for that range will be overwritten. The start and end offsets are | |
| 2618 * inclusive and will be clamped if out of range. | |
| 2619 * | |
| 2620 * @param style the style | |
| 2621 * @param start the start offset | |
| 2622 * @param end the end offset | |
| 2623 * | |
| 2624 * @exception DWTException <ul> | |
| 2625 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2626 * </ul> | |
| 2627 */ | |
| 2628 public void setStyle (TextStyle style, int start, int end) { | |
| 2629 checkLayout(); | |
| 227 | 2630 int length = text.length; |
| 2631 if (length is 0) return; | |
| 29 | 2632 if (start > end) return; |
| 227 | 2633 start = Math.min(Math.max(0, start), length - 1); |
| 2634 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 2635 int low = -1; |
| 213 | 2636 int high = stylesCount; |
| 29 | 2637 while (high - low > 1) { |
| 2638 int index = (high + low) / 2; | |
| 2639 if (styles[index + 1].start > start) { | |
| 2640 high = index; | |
| 2641 } else { | |
| 2642 low = index; | |
| 2643 } | |
| 2644 } | |
| 213 | 2645 if (0 <= high && high < stylesCount) { |
| 29 | 2646 StyleItem item = styles[high]; |
| 2647 if (item.start is start && styles[high + 1].start - 1 is end) { | |
| 2648 if (style is null) { | |
| 2649 if (item.style is null) return; | |
| 2650 } else { | |
| 227 | 2651 if (style.opEquals(item.style)) return; |
| 29 | 2652 } |
| 2653 } | |
| 2654 } | |
| 2655 freeRuns(); | |
| 2656 int modifyStart = high; | |
| 2657 int modifyEnd = modifyStart; | |
| 213 | 2658 while (modifyEnd < stylesCount) { |
| 29 | 2659 if (styles[modifyEnd + 1].start > end) break; |
| 2660 modifyEnd++; | |
| 2661 } | |
| 2662 if (modifyStart is modifyEnd) { | |
| 2663 int styleStart = styles[modifyStart].start; | |
| 2664 int styleEnd = styles[modifyEnd + 1].start - 1; | |
| 2665 if (styleStart is start && styleEnd is end) { | |
| 2666 styles[modifyStart].style = style; | |
| 2667 return; | |
| 2668 } | |
| 2669 if (styleStart !is start && styleEnd !is end) { | |
| 213 | 2670 int newLength = stylesCount + 2; |
| 2671 if (newLength > styles.length) { | |
| 2672 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2673 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2674 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2675 styles = newStyles; | |
| 2676 } | |
| 2677 System.arraycopy(styles, modifyEnd + 1, styles, modifyEnd + 3, stylesCount - modifyEnd - 1); | |
| 29 | 2678 StyleItem item = new StyleItem(); |
| 2679 item.start = start; | |
| 2680 item.style = style; | |
| 213 | 2681 styles[modifyStart + 1] = item; |
| 29 | 2682 item = new StyleItem(); |
| 2683 item.start = end + 1; | |
| 2684 item.style = styles[modifyStart].style; | |
| 213 | 2685 styles[modifyStart + 2] = item; |
| 2686 stylesCount = newLength; | |
| 29 | 2687 return; |
| 2688 } | |
| 2689 } | |
| 2690 if (start is styles[modifyStart].start) modifyStart--; | |
| 2691 if (end is styles[modifyEnd + 1].start - 1) modifyEnd++; | |
| 213 | 2692 int newLength = stylesCount + 1 - (modifyEnd - modifyStart - 1); |
| 2693 if (newLength > styles.length) { | |
| 2694 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2695 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2696 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2697 styles = newStyles; | |
| 2698 } | |
| 2699 System.arraycopy(styles, modifyEnd, styles, modifyStart + 2, stylesCount - modifyEnd); | |
| 29 | 2700 StyleItem item = new StyleItem(); |
| 2701 item.start = start; | |
| 2702 item.style = style; | |
| 213 | 2703 styles[modifyStart + 1] = item; |
| 2704 styles[modifyStart + 2].start = end + 1; | |
| 2705 stylesCount = newLength; | |
| 29 | 2706 } |
| 2707 | |
| 2708 /** | |
| 2709 * Sets the receiver's tab list. Each value in the tab list specifies | |
| 2710 * the space in pixels from the origin of the text layout to the respective | |
| 2711 * tab stop. The last tab stop width is repeated continuously. | |
| 2712 * | |
| 2713 * @param tabs the new tab list | |
| 2714 * | |
| 2715 * @exception DWTException <ul> | |
| 2716 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2717 * </ul> | |
| 2718 */ | |
| 2719 public void setTabs (int[] tabs) { | |
| 2720 checkLayout(); | |
| 2721 if (this.tabs is null && tabs is null) return; | |
| 2722 if (this.tabs !is null && tabs !is null) { | |
| 2723 if (this.tabs.length is tabs.length) { | |
| 2724 int i; | |
| 2725 for (i = 0; i <tabs.length; i++) { | |
| 2726 if (this.tabs[i] !is tabs[i]) break; | |
| 2727 } | |
| 2728 if (i is tabs.length) return; | |
| 2729 } | |
| 2730 } | |
| 2731 freeRuns(); | |
| 2732 this.tabs = tabs; | |
| 2733 } | |
| 2734 | |
| 2735 /** | |
| 2736 * Sets the receiver's text. | |
| 2737 * | |
| 2738 * @param text the new text | |
| 2739 * | |
| 2740 * @exception IllegalArgumentException <ul> | |
| 2741 * <li>ERROR_NULL_ARGUMENT - if the text is null</li> | |
| 2742 * </ul> | |
| 2743 * @exception DWTException <ul> | |
| 2744 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2745 * </ul> | |
| 2746 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
2747 public void setText (String text) { |
| 29 | 2748 checkLayout(); |
| 229 | 2749 |
|
157
f8001bf383d2
TextLayout allow null for setText
Frank Benoit <benoit@tionex.de>
parents:
81
diff
changeset
|
2750 //PORTING_CHANGE: allow null argument |
|
f8001bf383d2
TextLayout allow null for setText
Frank Benoit <benoit@tionex.de>
parents:
81
diff
changeset
|
2751 //if (text is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
| 227 | 2752 if (text.equals(this.text)) return; |
| 29 | 2753 freeRuns(); |
| 2754 this.text = text; | |
| 2755 styles = new StyleItem[2]; | |
| 2756 styles[0] = new StyleItem(); | |
| 2757 styles[1] = new StyleItem(); | |
| 30 | 2758 styles[1].start = text.length; |
| 213 | 2759 stylesCount = 2; |
| 29 | 2760 } |
| 2761 | |
| 2762 /** | |
| 2763 * Sets the line width of the receiver, which determines how | |
| 2764 * text should be wrapped and aligned. The default value is | |
| 2765 * <code>-1</code> which means wrapping is disabled. | |
| 2766 * | |
| 2767 * @param width the new width | |
| 2768 * | |
| 2769 * @exception IllegalArgumentException <ul> | |
| 2770 * <li>ERROR_INVALID_ARGUMENT - if the width is <code>0</code> or less than <code>-1</code></li> | |
| 2771 * </ul> | |
| 2772 * @exception DWTException <ul> | |
| 2773 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2774 * </ul> | |
| 2775 * | |
| 2776 * @see #setAlignment(int) | |
| 2777 */ | |
| 2778 public void setWidth (int width) { | |
| 2779 checkLayout(); | |
| 2780 if (width < -1 || width is 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2781 if (this.wrapWidth is width) return; | |
| 2782 freeRuns(); | |
| 2783 this.wrapWidth = width; | |
| 2784 } | |
| 2785 | |
| 246 | 2786 bool shape (HDC hdc, StyleItem run, char[] chars, int[] glyphCount, int maxGlyphs, SCRIPT_PROPERTIES sp) { |
| 30 | 2787 wchar[] wchars = StrToWCHARs( chars ); |
| 246 | 2788 bool useCMAPcheck = !sp.fComplex && !run.analysis.fNoGlyphIndex; |
| 2789 if (useCMAPcheck) { | |
| 2790 short[] glyphs = new short[chars.length]; | |
| 2791 if (OS.ScriptGetCMap(hdc, run.psc, chars, chars.length, 0, glyphs) !is OS.S_OK) { | |
| 2792 if (run.psc !is 0) { | |
| 2793 OS.ScriptFreeCache(run.psc); | |
| 2794 glyphCount[0] = 0; | |
| 2795 OS.MoveMemory(run.psc, new int /*long*/ [1], OS.PTR_SIZEOF); | |
| 2796 } | |
| 2797 return false; | |
| 2798 } | |
| 2799 } | |
| 30 | 2800 auto hr = OS.ScriptShape(hdc, run.psc, wchars.ptr, wchars.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, glyphCount.ptr); |
| 29 | 2801 run.glyphCount = glyphCount[0]; |
| 246 | 2802 if (useCMAPcheck) return true; |
| 2803 | |
| 29 | 2804 if (hr !is OS.USP_E_SCRIPT_NOT_IN_FONT) { |
| 246 | 2805 if (run.analysis.fNoGlyphIndex) return true; |
| 30 | 2806 SCRIPT_FONTPROPERTIES fp; |
| 29 | 2807 fp.cBytes = SCRIPT_FONTPROPERTIES.sizeof; |
| 30 | 2808 OS.ScriptGetFontProperties(hdc, run.psc, &fp); |
| 2809 ushort[] glyphs = run.glyphs[ 0 .. glyphCount[0] ]; | |
| 29 | 2810 int i; |
| 2811 for (i = 0; i < glyphs.length; i++) { | |
| 2812 if (glyphs[i] is fp.wgDefault) break; | |
| 2813 } | |
| 2814 if (i is glyphs.length) return true; | |
| 2815 } | |
| 30 | 2816 if (run.psc !is null) { |
| 29 | 2817 OS.ScriptFreeCache(run.psc); |
| 2818 glyphCount[0] = 0; | |
| 30 | 2819 *cast(int*)run.psc = 0; |
| 29 | 2820 } |
| 2821 run.glyphCount = 0; | |
| 2822 return false; | |
| 2823 } | |
| 2824 | |
| 213 | 2825 struct CallbackDataEnumFontFamExProc { |
| 2826 int delegate ( ENUMLOGFONTEX* lpelfe, NEWTEXTMETRICEX* lpntme, int FontType, int lParam) EnumFontFamExProc; | |
| 2827 int lParam; | |
| 2828 } | |
| 2829 extern(Windows) private static int EnumFontFamExProcFunc( ENUMLOGFONTEX* lpelfe, NEWTEXTMETRICEX* lpntme, int FontType, int lParam) { | |
| 2830 auto cb = cast(CallbackDataEnumFontFamExProc*)cast(void*)lParam; | |
| 2831 return cb.EnumFontFamExProc( lpelfe, lpntme, FontType, cb.lParam ); | |
| 2832 } | |
| 2833 | |
| 29 | 2834 /* |
| 2835 * Generate glyphs for one Run. | |
| 2836 */ | |
| 2837 void shape (HDC hdc, StyleItem run) { | |
| 213 | 2838 final int[] buffer = new int[1]; |
| 2839 final char[] chars = new char[run.length]; | |
| 29 | 2840 segmentsText.getChars(run.start, run.start + run.length, chars, 0); |
| 30 | 2841 wchar[] wchars = StrToWCHARs( chars ); |
| 29 | 2842 int maxGlyphs = (chars.length * 3 / 2) + 16; |
| 30 | 2843 auto hHeap = OS.GetProcessHeap(); |
| 2844 run.glyphs = cast(ushort*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2845 if (run.glyphs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2846 run.clusters = cast(WORD*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2847 if (run.clusters is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2848 run.visAttrs = cast(SCRIPT_VISATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * SCRIPT_VISATTR_SIZEOF); | |
| 2849 if (run.visAttrs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2850 run.psc = cast(SCRIPT_CACHE*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, (void*).sizeof); |
| 30 | 2851 if (run.psc is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 213 | 2852 final short script = run.analysis.eScript; |
| 246 | 2853 final SCRIPT_PROPERTIES sp = new SCRIPT_PROPERTIES(); |
| 2854 OS.MoveMemory(sp, device.scripts[script], SCRIPT_PROPERTIES.sizeof); | |
| 2855 bool shapeSucceed = shape(hdc, run, chars, buffer, maxGlyphs, sp); | |
| 213 | 2856 if (!shapeSucceed) { |
| 246 | 2857 int /*long*/ hFont = OS.GetCurrentObject(hdc, OS.OBJ_FONT); |
| 2858 int /*long*/ ssa = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, OS.SCRIPT_STRING_ANALYSIS_sizeof()); | |
| 2859 int /*long*/ metaFileDc = OS.CreateEnhMetaFile(hdc, null, null, null); | |
| 2860 int /*long*/ oldMetaFont = OS.SelectObject(metaFileDc, hFont); | |
| 2861 int flags = OS.SSA_METAFILE | OS.SSA_FALLBACK | OS.SSA_GLYPHS | OS.SSA_LINK; | |
| 2862 if (OS.ScriptStringAnalyse(metaFileDc, chars, chars.length, 0, -1, flags, 0, null, null, 0, 0, 0, ssa) is OS.S_OK) { | |
| 2863 OS.ScriptStringOut(ssa, 0, 0, 0, null, 0, 0, false); | |
| 2864 OS.ScriptStringFree(ssa); | |
| 2865 } | |
| 2866 OS.HeapFree(hHeap, 0, ssa); | |
| 2867 OS.SelectObject(metaFileDc, oldMetaFont); | |
| 2868 int /*long*/ metaFile = OS.CloseEnhMetaFile(metaFileDc); | |
| 2869 final EMREXTCREATEFONTINDIRECTW emr = new EMREXTCREATEFONTINDIRECTW(); | |
| 2870 class MetaFileEnumProc { | |
| 2871 int /*long*/ metaFileEnumProc (int /*long*/ hDC, int /*long*/ table, int /*long*/ record, int /*long*/ nObj, int /*long*/ lpData) { | |
| 2872 OS.MoveMemory(emr.emr, record, EMR.sizeof); | |
| 2873 switch (emr.emr.iType) { | |
| 2874 case OS.EMR_EXTCREATEFONTINDIRECTW: | |
| 2875 OS.MoveMemory(emr, record, EMREXTCREATEFONTINDIRECTW.sizeof); | |
| 2876 break; | |
| 2877 case OS.EMR_EXTTEXTOUTW: | |
| 2878 return 0; | |
| 2879 } | |
| 2880 return 1; | |
| 2881 } | |
| 2882 }; | |
| 2883 MetaFileEnumProc object = new MetaFileEnumProc(); | |
| 2884 /* Avoid compiler warnings */ | |
| 2885 if (false) object.metaFileEnumProc(0, 0, 0, 0, 0); | |
| 2886 Callback callback = new Callback(object, "metaFileEnumProc", 5); | |
| 2887 int /*long*/ address = callback.getAddress(); | |
| 2888 if (address is 0) DWT.error(DWT.ERROR_NO_MORE_CALLBACKS); | |
| 2889 OS.EnumEnhMetaFile(0, metaFile, address, 0, null); | |
| 2890 OS.DeleteEnhMetaFile(metaFile); | |
| 2891 callback.dispose(); | |
| 2892 | |
| 2893 int /*long*/ newFont = OS.CreateFontIndirectW(emr.elfw.elfLogFont); | |
| 2894 OS.SelectObject(hdc, newFont); | |
| 2895 if (shapeSucceed = shape(hdc, run, chars, buffer, maxGlyphs, sp)) { | |
| 2896 run.fallbackFont = newFont; | |
| 2897 } | |
| 2898 if (!shapeSucceed) { | |
| 2899 if (!sp.fComplex) { | |
| 2900 run.analysis.fNoGlyphIndex = true; | |
| 2901 if (shapeSucceed = shape(hdc, run, chars, buffer, maxGlyphs, sp)) { | |
| 2902 run.fallbackFont = newFont; | |
| 29 | 2903 } else { |
| 246 | 2904 run.analysis.fNoGlyphIndex = false; |
| 29 | 2905 } |
| 2906 } | |
| 2907 } | |
| 246 | 2908 if (!shapeSucceed) { |
| 2909 if (mLangFontLink2 !is null) { | |
| 2910 HANDLE hNewFont; | |
| 2911 int dwCodePages, cchCodePages; | |
| 2912 /* GetStrCodePages() */ | |
| 2913 OS.VtblCall(4, mLangFontLink2, cast(int)wchars.ptr, wchars.length, 0, cast(int)&dwCodePages, cast(int)&cchCodePages); | |
| 2914 /* MapFont() */ | |
| 2915 if (OS.VtblCall(10, mLangFontLink2, cast(int)hdc, dwCodePages, cast(int)wchars[0], cast(int)&hNewFont) is OS.S_OK) { | |
| 2916 LOGFONT logFont; | |
| 2917 OS.GetObject( hNewFont, LOGFONT.sizeof, &logFont ); | |
| 2918 /* ReleaseFont() */ | |
| 2919 OS.VtblCall(8, mLangFontLink2, cast(int)hNewFont); | |
| 2920 auto mLangFont = OS.CreateFontIndirect(logFont); | |
| 2921 auto oldFont = OS.SelectObject(hdc, mLangFont); | |
| 2922 if (shapeSucceed = shape(hdc, run, chars, buffer, maxGlyphs, sp)) { | |
| 2923 run.fallbackFont = mLangFont; | |
| 2924 } else { | |
| 2925 OS.SelectObject(hdc, oldFont); | |
| 2926 OS.DeleteObject(mLangFont); | |
| 2927 } | |
| 2928 } | |
| 213 | 2929 } |
| 2930 } | |
| 246 | 2931 if (!shapeSucceed) OS.SelectObject(hdc, hFont); |
| 2932 if (newFont !is run.fallbackFont) OS.DeleteObject(newFont); | |
| 213 | 2933 } |
| 2934 | |
| 2935 if (!shapeSucceed) { | |
| 2936 /* | |
| 2937 * Shape Failed. | |
| 2938 * Give up and shape the run with the default font. | |
| 2939 * Missing glyphs typically will be represent as black boxes in the text. | |
| 2940 */ | |
| 2941 auto wchars_ = StrToWCHARs(chars); | |
| 2942 OS.ScriptShape(hdc, run.psc, wchars_.ptr, wchars_.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, buffer.ptr); | |
| 2943 run.glyphCount = buffer[0]; | |
| 2944 } | |
| 2945 int[3] abc; | |
| 30 | 2946 run.advances = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * 4); |
| 2947 if (run.advances is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2948 run.goffsets = cast(GOFFSET*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * GOFFSET_SIZEOF); | |
| 2949 if (run.goffsets is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2950 OS.ScriptPlace(hdc, run.psc, run.glyphs, run.glyphCount, run.visAttrs, &run.analysis, run.advances, run.goffsets, cast(ABC*)abc.ptr); |
| 2951 run.width = abc[0] + abc[1] + abc[2]; | |
| 2952 TextStyle style = run.style; | |
| 2953 if (style !is null) { | |
| 2954 OUTLINETEXTMETRIC* lotm = null; | |
| 2955 if (style.underline || style.strikeout) { | |
| 2956 lotm = new OUTLINETEXTMETRIC(); | |
| 2957 if (OS.GetOutlineTextMetrics(hdc, OUTLINETEXTMETRIC.sizeof, lotm) is 0) { | |
| 2958 lotm = null; | |
| 2959 } | |
| 2960 } | |
| 2961 if (style.metrics !is null) { | |
| 2962 GlyphMetrics metrics = style.metrics; | |
| 2963 /* | |
| 2964 * Bug in Windows, on a Japanese machine, Uniscribe returns glyphcount | |
| 2965 * equals zero for FFFC (possibly other unicode code points), the fix | |
| 2966 * is to make sure the glyph is at least one pixel wide. | |
| 2967 */ | |
| 2968 run.width = metrics.width * Math.max (1, run.glyphCount); | |
| 2969 run.ascent = metrics.ascent; | |
| 2970 run.descent = metrics.descent; | |
| 2971 run.leading = 0; | |
| 2972 } else { | |
| 2973 TEXTMETRIC lptm; | |
| 2974 if (lotm !is null) { | |
| 2975 lptm = lotm.otmTextMetrics; | |
| 2976 } else { | |
| 2977 lptm = TEXTMETRIC.init; | |
| 2978 OS.GetTextMetrics(hdc, &lptm); | |
| 2979 } | |
| 2980 run.ascent = lptm.tmAscent; | |
| 2981 run.descent = lptm.tmDescent; | |
| 2982 run.leading = lptm.tmInternalLeading; | |
| 2983 } | |
| 2984 if (lotm !is null) { | |
| 2985 run.underlinePos = lotm.otmsUnderscorePosition; | |
| 2986 run.underlineThickness = Math.max(1, lotm.otmsUnderscoreSize); | |
| 2987 run.strikeoutPos = lotm.otmsStrikeoutPosition; | |
| 2988 run.strikeoutThickness = Math.max(1, lotm.otmsStrikeoutSize); | |
| 2989 } else { | |
| 2990 run.underlinePos = 1; | |
| 2991 run.underlineThickness = 1; | |
| 2992 run.strikeoutPos = run.ascent / 2; | |
| 2993 run.strikeoutThickness = 1; | |
| 2994 } | |
| 2995 run.ascent += style.rise; | |
| 2996 run.descent -= style.rise; | |
| 29 | 2997 } else { |
| 2998 TEXTMETRIC lptm; | |
| 2999 OS.GetTextMetrics(hdc, &lptm); | |
| 3000 run.ascent = lptm.tmAscent; | |
| 3001 run.descent = lptm.tmDescent; | |
| 3002 run.leading = lptm.tmInternalLeading; | |
| 3003 } | |
| 3004 } | |
| 3005 | |
| 3006 int validadeOffset(int offset, int step) { | |
| 3007 offset += step; | |
| 3008 if (segments !is null && segments.length > 2) { | |
| 3009 for (int i = 0; i < segments.length; i++) { | |
| 3010 if (translateOffset(segments[i]) - 1 is offset) { | |
| 3011 offset += step; | |
| 3012 break; | |
| 3013 } | |
| 3014 } | |
| 3015 } | |
| 3016 return offset; | |
| 3017 } | |
| 3018 | |
| 3019 /** | |
| 3020 * Returns a string containing a concise, human-readable | |
| 3021 * description of the receiver. | |
| 3022 * | |
| 3023 * @return a string representation of the receiver | |
| 3024 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
3025 override public String toString () { |
| 29 | 3026 if (isDisposed()) return "TextLayout {*DISPOSED*}"; |
| 3027 return "TextLayout {}"; | |
| 3028 } | |
| 3029 | |
| 3030 int translateOffset(int offset) { | |
| 3031 if (segments is null) return offset; | |
| 3032 int nSegments = segments.length; | |
| 3033 if (nSegments <= 1) return offset; | |
| 227 | 3034 int length = text.length; |
| 3035 if (length is 0) return offset; | |
| 29 | 3036 if (nSegments is 2) { |
| 227 | 3037 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3038 } |
| 3039 for (int i = 0; i < nSegments && offset - i >= segments[i]; i++) { | |
| 3040 offset++; | |
| 3041 } | |
| 3042 return offset; | |
| 3043 } | |
| 3044 | |
| 3045 int untranslateOffset(int offset) { | |
| 3046 if (segments is null) return offset; | |
| 3047 int nSegments = segments.length; | |
| 3048 if (nSegments <= 1) return offset; | |
| 227 | 3049 int length = text.length; |
| 3050 if (length is 0) return offset; | |
| 29 | 3051 if (nSegments is 2) { |
| 227 | 3052 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3053 } |
| 3054 for (int i = 0; i < nSegments && offset > segments[i]; i++) { | |
| 3055 offset--; | |
| 3056 } | |
| 3057 return offset; | |
| 3058 } | |
| 3059 } |