Mercurial > projects > dwt-win
annotate dwt/graphics/TextLayout.d @ 249:b3dbd786541a
Fix: compile errors
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 06 Jul 2008 17:23:35 +0200 |
| parents | fd9c62a2998e |
| children | 3f53ebb05b5b |
| 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 |
| 29 | 20 import dwt.internal.win32.OS; |
| 21 | |
| 22 import dwt.graphics.Color; | |
| 23 import dwt.graphics.Device; | |
| 24 import dwt.graphics.Font; | |
| 25 import dwt.graphics.FontMetrics; | |
| 26 import dwt.graphics.GC; | |
| 27 import dwt.graphics.GCData; | |
| 28 import dwt.graphics.GlyphMetrics; | |
| 29 import dwt.graphics.Point; | |
| 30 import dwt.graphics.Rectangle; | |
| 31 import dwt.graphics.Region; | |
| 32 import dwt.graphics.Resource; | |
| 33 import dwt.graphics.TextStyle; | |
| 34 | |
| 35 import tango.text.convert.Format; | |
| 36 import dwt.dwthelper.utils; | |
| 30 | 37 import dwt.dwthelper.System; |
| 29 | 38 |
| 227 | 39 |
| 29 | 40 /** |
| 41 * <code>TextLayout</code> is a graphic object that represents | |
| 42 * styled text. | |
| 43 * <p> | |
| 44 * Instances of this class provide support for drawing, cursor | |
| 45 * navigation, hit testing, text wrapping, alignment, tab expansion | |
| 46 * line breaking, etc. These are aspects required for rendering internationalized text. | |
| 47 * </p><p> | |
| 48 * Application code must explicitly invoke the <code>TextLayout#dispose()</code> | |
| 49 * method to release the operating system resources managed by each instance | |
| 50 * when those instances are no longer required. | |
| 51 * </p> | |
| 52 * | |
| 246 | 53 * @see <a href="http://www.eclipse.org/swt/snippets/#textlayout">TextLayout, TextStyle snippets</a> |
| 54 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: CustomControlExample, StyledText tab</a> | |
| 55 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
| 56 * | |
| 57 * @since 3.0 | |
| 29 | 58 */ |
| 59 public final class TextLayout : Resource { | |
| 227 | 60 |
| 213 | 61 alias Resource.init_ init_; |
| 62 | |
| 227 | 63 /++ |
| 229 | 64 + DWT doku |
| 65 + The styles has at minimum 2 member, each with a start. The last element is the end marker. | |
| 66 + | |
| 67 + invariant{ | |
| 68 + assert( stylesCount >= 2 ); | |
| 69 + assert( stylesCount <= styles.length ); | |
| 70 + assert( styles[stylesCount-1] ); | |
| 71 + assert( styles[stylesCount-1].start is text.length ); | |
| 72 + } | |
| 73 +/ | |
| 227 | 74 |
| 75 | |
| 29 | 76 Font font; |
|
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reverted the char[] to String and use the an alias.
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parents:
157
diff
changeset
|
77 String text, segmentsText; |
| 29 | 78 int lineSpacing; |
| 79 int ascent, descent; | |
| 80 int alignment; | |
| 81 int wrapWidth; | |
| 82 int orientation; | |
| 83 int indent; | |
| 84 bool justify; | |
| 85 int[] tabs; | |
| 86 int[] segments; | |
| 87 StyleItem[] styles; | |
| 213 | 88 int stylesCount; |
| 29 | 89 |
| 90 StyleItem[] allRuns; | |
| 91 StyleItem[][] runs; | |
| 92 int[] lineOffset, lineY, lineWidth; | |
| 30 | 93 void* mLangFontLink2; |
| 29 | 94 |
| 95 static const wchar LTR_MARK = '\u200E', RTL_MARK = '\u200F'; | |
| 96 static const int SCRIPT_VISATTR_SIZEOF = 2; | |
| 97 static const int GOFFSET_SIZEOF = 8; | |
| 80 | 98 private static byte[16] CLSID_CMultiLanguage; |
| 99 private static byte[16] IID_IMLangFontLink2; | |
| 100 private static bool static_this_completed = false; | |
| 101 private static void static_this() { | |
| 102 // in case of allready initialized, we can check and leave without lock | |
| 103 if( static_this_completed ){ | |
| 104 return; | |
| 105 } | |
| 106 synchronized { | |
| 107 if( !static_this_completed ){ | |
| 108 OS.IIDFromString("{275c23e2-3747-11d0-9fea-00aa003f8646}\0".toCharArray().ptr, CLSID_CMultiLanguage.ptr); | |
| 109 OS.IIDFromString("{DCCFC162-2B38-11d2-B7EC-00C04F8F5D9A}\0".toCharArray().ptr, IID_IMLangFontLink2.ptr); | |
| 110 static_this_completed = true; | |
| 111 } | |
| 112 } | |
| 29 | 113 } |
| 114 | |
| 213 | 115 /* IME has a copy of these constants */ |
| 116 static const int UNDERLINE_IME_DOT = 1 << 16; | |
| 117 static const int UNDERLINE_IME_DASH = 2 << 16; | |
| 118 static const int UNDERLINE_IME_THICK = 3 << 16; | |
| 119 | |
| 29 | 120 class StyleItem { |
| 121 TextStyle style; | |
| 122 int start, length; | |
| 123 bool lineBreak, softBreak, tab; | |
| 124 | |
| 125 /*Script cache and analysis */ | |
| 126 SCRIPT_ANALYSIS analysis; | |
| 127 SCRIPT_CACHE* psc; | |
| 128 | |
| 129 /*Shape info (malloc when the run is shaped) */ | |
| 130 WORD* glyphs; | |
| 131 int glyphCount; | |
| 132 WORD* clusters; | |
| 133 SCRIPT_VISATTR* visAttrs; | |
| 134 | |
| 135 /*Place info (malloc when the run is placed) */ | |
| 136 int* advances; | |
| 30 | 137 GOFFSET* goffsets; |
| 138 int width; | |
| 139 int ascent; | |
| 140 int descent; | |
| 141 int leading; | |
| 142 int x; | |
| 213 | 143 int underlinePos, underlineThickness; |
| 144 int strikeoutPos, strikeoutThickness; | |
| 29 | 145 |
| 146 /* Justify info (malloc during computeRuns) */ | |
| 147 int* justify; | |
| 148 | |
| 149 /* ScriptBreak */ | |
| 150 SCRIPT_LOGATTR* psla; | |
| 151 | |
| 30 | 152 HFONT fallbackFont; |
| 29 | 153 |
| 154 void free() { | |
| 155 auto hHeap = OS.GetProcessHeap(); | |
| 156 if (psc !is null) { | |
| 157 OS.ScriptFreeCache (psc); | |
| 158 OS.HeapFree(hHeap, 0, psc); | |
| 159 psc = null; | |
| 160 } | |
| 161 if (glyphs !is null) { | |
| 162 OS.HeapFree(hHeap, 0, glyphs); | |
| 163 glyphs = null; | |
| 164 glyphCount = 0; | |
| 165 } | |
| 166 if (clusters !is null) { | |
| 167 OS.HeapFree(hHeap, 0, clusters); | |
| 168 clusters = null; | |
| 169 } | |
| 170 if (visAttrs !is null) { | |
| 171 OS.HeapFree(hHeap, 0, visAttrs); | |
| 172 visAttrs = null; | |
| 173 } | |
| 174 if (advances !is null) { | |
| 175 OS.HeapFree(hHeap, 0, advances); | |
| 176 advances = null; | |
| 177 } | |
| 178 if (goffsets !is null) { | |
| 179 OS.HeapFree(hHeap, 0, goffsets); | |
| 180 goffsets = null; | |
| 181 } | |
| 182 if (justify !is null) { | |
| 183 OS.HeapFree(hHeap, 0, justify); | |
| 184 justify = null; | |
| 185 } | |
| 186 if (psla !is null) { | |
| 187 OS.HeapFree(hHeap, 0, psla); | |
| 188 psla = null; | |
| 189 } | |
| 190 if (fallbackFont !is null) { | |
| 246 | 191 OS.DeleteObject(fallbackFont); |
| 29 | 192 fallbackFont = null; |
| 193 } | |
| 30 | 194 width = 0; |
| 195 ascent = 0; | |
| 196 descent = 0; | |
| 197 x = 0; | |
| 29 | 198 lineBreak = softBreak = false; |
| 199 } | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
200 override public String toString () { |
| 29 | 201 return Format( "StyleItem {{{}, {}}", start, style ); |
| 202 } | |
| 203 } | |
| 204 | |
| 205 /** | |
| 206 * Constructs a new instance of this class on the given device. | |
| 207 * <p> | |
| 208 * You must dispose the text layout when it is no longer required. | |
| 209 * </p> | |
| 210 * | |
| 211 * @param device the device on which to allocate the text layout | |
| 212 * | |
| 213 * @exception IllegalArgumentException <ul> | |
| 214 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 215 * </ul> | |
| 216 * | |
| 217 * @see #dispose() | |
| 218 */ | |
| 219 public this (Device device) { | |
| 80 | 220 static_this(); |
| 213 | 221 super(device); |
| 29 | 222 wrapWidth = ascent = descent = -1; |
| 223 lineSpacing = 0; | |
| 224 orientation = DWT.LEFT_TO_RIGHT; | |
| 225 styles = new StyleItem[2]; | |
| 226 styles[0] = new StyleItem(); | |
| 227 styles[1] = new StyleItem(); | |
| 213 | 228 stylesCount = 2; |
| 29 | 229 text = ""; //$NON-NLS-1$ |
| 30 | 230 void* ppv; |
| 231 OS.OleInitialize(null); | |
| 232 if (OS.CoCreateInstance(CLSID_CMultiLanguage.ptr, null, OS.CLSCTX_INPROC_SERVER, IID_IMLangFontLink2.ptr, cast(void*)&ppv) is OS.S_OK) { | |
| 233 mLangFontLink2 = ppv; | |
| 29 | 234 } |
| 213 | 235 init_(); |
| 29 | 236 } |
| 237 | |
| 238 void breakRun(StyleItem run) { | |
| 30 | 239 if (run.psla !is null) return; |
| 59 | 240 wchar[] chars = StrToWCHARs( 0, segmentsText[ run.start .. run.start + run.length ] ); |
| 30 | 241 auto hHeap = OS.GetProcessHeap(); |
| 242 run.psla = cast(SCRIPT_LOGATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_LOGATTR.sizeof * chars.length); | |
| 243 if (run.psla is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 244 OS.ScriptBreak(chars.ptr, chars.length, &run.analysis, run.psla); | |
| 29 | 245 } |
| 246 | |
| 247 void checkLayout () { | |
| 248 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); | |
| 249 } | |
| 250 | |
| 251 /* | |
| 252 * Compute the runs: itemize, shape, place, and reorder the runs. | |
| 253 * Break paragraphs into lines, wraps the text, and initialize caches. | |
| 254 */ | |
| 255 void computeRuns (GC gc) { | |
| 256 if (runs !is null) return; | |
| 30 | 257 auto hDC = gc !is null ? gc.handle : device.internal_new_GC(null); |
| 258 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 259 allRuns = itemize(); |
| 260 for (int i=0; i<allRuns.length - 1; i++) { | |
| 261 StyleItem run = allRuns[i]; | |
| 262 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 263 shape(srcHdc, run); | |
| 264 } | |
| 30 | 265 SCRIPT_LOGATTR* logAttr; |
| 266 SCRIPT_PROPERTIES* properties; | |
| 29 | 267 int lineWidth = indent, lineStart = 0, lineCount = 1; |
| 268 for (int i=0; i<allRuns.length - 1; i++) { | |
| 269 StyleItem run = allRuns[i]; | |
| 270 if (run.length is 1) { | |
| 271 char ch = segmentsText.charAt(run.start); | |
| 272 switch (ch) { | |
| 273 case '\t': { | |
| 274 run.tab = true; | |
| 275 if (tabs is null) break; | |
| 276 int tabsLength = tabs.length, j; | |
| 277 for (j = 0; j < tabsLength; j++) { | |
| 278 if (tabs[j] > lineWidth) { | |
| 279 run.width = tabs[j] - lineWidth; | |
| 280 break; | |
| 281 } | |
| 282 } | |
| 283 if (j is tabsLength) { | |
| 284 int tabX = tabs[tabsLength-1]; | |
| 285 int lastTabWidth = tabsLength > 1 ? tabs[tabsLength-1] - tabs[tabsLength-2] : tabs[0]; | |
| 286 if (lastTabWidth > 0) { | |
| 287 while (tabX <= lineWidth) tabX += lastTabWidth; | |
| 288 run.width = tabX - lineWidth; | |
| 289 } | |
| 290 } | |
| 291 break; | |
| 292 } | |
| 293 case '\n': { | |
| 294 run.lineBreak = true; | |
| 295 break; | |
| 296 } | |
| 297 case '\r': { | |
| 298 run.lineBreak = true; | |
| 299 StyleItem next = allRuns[i + 1]; | |
| 300 if (next.length !is 0 && segmentsText.charAt(next.start) is '\n') { | |
| 301 run.length += 1; | |
| 302 next.free(); | |
| 246 | 303 StyleItem[] newAllRuns = new StyleItem[allRuns.length - 1]; |
| 304 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 305 System.arraycopy(allRuns, i + 2, newAllRuns, i + 1, allRuns.length - i - 2); | |
| 306 allRuns = newAllRuns; | |
| 29 | 307 } |
| 308 break; | |
| 309 } | |
| 81 | 310 default: |
| 29 | 311 } |
| 312 } | |
| 313 if (wrapWidth !is -1 && lineWidth + run.width > wrapWidth && !run.tab) { | |
| 314 int start = 0; | |
| 315 int[] piDx = new int[run.length]; | |
| 316 if (run.style !is null && run.style.metrics !is null) { | |
| 317 piDx[0] = run.width; | |
| 318 } else { | |
| 30 | 319 OS.ScriptGetLogicalWidths(&run.analysis, run.length, run.glyphCount, run.advances, run.clusters, run.visAttrs, piDx.ptr); |
| 29 | 320 } |
| 321 int width = 0, maxWidth = wrapWidth - lineWidth; | |
| 322 while (width + piDx[start] < maxWidth) { | |
| 323 width += piDx[start++]; | |
| 324 } | |
| 325 int firstStart = start; | |
| 326 int firstIndice = i; | |
| 327 while (i >= lineStart) { | |
| 328 breakRun(run); | |
| 329 while (start >= 0) { | |
| 30 | 330 logAttr = run.psla + start; |
| 331 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 332 if (logAttr.fSoftBreak || logAttr.fWhiteSpace) break; |
| 333 start--; | |
| 334 } | |
| 335 | |
| 336 /* | |
| 337 * Bug in Windows. For some reason Uniscribe sets the fSoftBreak flag for the first letter | |
| 338 * after a letter with an accent. This cause a break line to be set in the middle of a word. | |
| 339 * The fix is to detect the case and ignore fSoftBreak forcing the algorithm keep searching. | |
| 340 */ | |
| 341 if (start is 0 && i !is lineStart && !run.tab) { | |
| 342 if (logAttr.fSoftBreak && !logAttr.fWhiteSpace) { | |
| 30 | 343 properties = device.scripts[run.analysis.eScript]; |
| 344 //OS.MoveMemory(properties, device.scripts[run.analysis.eScript], SCRIPT_PROPERTIES.sizeof); | |
| 29 | 345 int langID = properties.langid; |
| 346 StyleItem pRun = allRuns[i - 1]; | |
| 30 | 347 //OS.MoveMemory(properties, device.scripts[pRun.analysis.eScript], SCRIPT_PROPERTIES.sizeof); |
| 29 | 348 if (properties.langid is langID || langID is OS.LANG_NEUTRAL || properties.langid is OS.LANG_NEUTRAL) { |
| 349 breakRun(pRun); | |
| 30 | 350 logAttr = pRun.psla + (pRun.length - 1); |
| 351 //OS.MoveMemory(logAttr, pRun.psla + ((pRun.length - 1) * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 352 if (!logAttr.fWhiteSpace) start = -1; |
| 353 } | |
| 354 } | |
| 355 } | |
| 356 if (start >= 0 || i is lineStart) break; | |
| 357 run = allRuns[--i]; | |
| 358 start = run.length - 1; | |
| 359 } | |
| 360 if (start is 0 && i !is lineStart && !run.tab) { | |
| 361 run = allRuns[--i]; | |
| 362 } else if (start <= 0 && i is lineStart) { | |
| 213 | 363 if (lineWidth is wrapWidth && firstIndice > 0) { |
| 364 i = firstIndice - 1; | |
| 365 run = allRuns[i]; | |
| 366 start = run.length; | |
| 367 } else { | |
| 368 i = firstIndice; | |
| 369 run = allRuns[i]; | |
| 370 start = Math.max(1, firstStart); | |
| 371 } | |
| 29 | 372 } |
| 373 breakRun(run); | |
| 374 while (start < run.length) { | |
| 30 | 375 logAttr = run.psla + start; |
| 376 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 377 if (!logAttr.fWhiteSpace) break; |
| 378 start++; | |
| 379 } | |
| 380 if (0 < start && start < run.length) { | |
| 381 StyleItem newRun = new StyleItem(); | |
| 382 newRun.start = run.start + start; | |
| 383 newRun.length = run.length - start; | |
| 384 newRun.style = run.style; | |
| 246 | 385 newRun.analysis = cloneScriptAnalysis(run.analysis); |
| 29 | 386 run.free(); |
| 387 run.length = start; | |
| 388 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 246 | 389 run.analysis.fNoGlyphIndex = false; |
| 29 | 390 shape (srcHdc, run); |
| 391 OS.SelectObject(srcHdc, getItemFont(newRun)); | |
| 246 | 392 newRun.analysis.fNoGlyphIndex = false; |
| 29 | 393 shape (srcHdc, newRun); |
| 394 StyleItem[] newAllRuns = new StyleItem[allRuns.length + 1]; | |
| 395 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 396 System.arraycopy(allRuns, i + 1, newAllRuns, i + 2, allRuns.length - i - 1); | |
| 397 allRuns = newAllRuns; | |
| 398 allRuns[i + 1] = newRun; | |
| 399 } | |
| 400 if (i !is allRuns.length - 2) { | |
| 401 run.softBreak = run.lineBreak = true; | |
| 402 } | |
| 403 } | |
| 404 lineWidth += run.width; | |
| 405 if (run.lineBreak) { | |
| 406 lineStart = i + 1; | |
| 407 lineWidth = run.softBreak ? 0 : indent; | |
| 408 lineCount++; | |
| 409 } | |
| 410 } | |
| 411 lineWidth = 0; | |
| 30 | 412 runs = new StyleItem[][](lineCount); |
| 29 | 413 lineOffset = new int[lineCount + 1]; |
| 414 lineY = new int[lineCount + 1]; | |
| 415 this.lineWidth = new int[lineCount]; | |
| 416 int lineRunCount = 0, line = 0; | |
| 417 int ascent = Math.max(0, this.ascent); | |
| 418 int descent = Math.max(0, this.descent); | |
| 419 StyleItem[] lineRuns = new StyleItem[allRuns.length]; | |
| 420 for (int i=0; i<allRuns.length; i++) { | |
| 421 StyleItem run = allRuns[i]; | |
| 422 lineRuns[lineRunCount++] = run; | |
| 423 lineWidth += run.width; | |
| 424 ascent = Math.max(ascent, run.ascent); | |
| 425 descent = Math.max(descent, run.descent); | |
| 426 if (run.lineBreak || i is allRuns.length - 1) { | |
| 427 /* Update the run metrics if the last run is a hard break. */ | |
| 428 if (lineRunCount is 1 && i is allRuns.length - 1) { | |
| 429 TEXTMETRIC lptm; | |
| 430 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 431 OS.GetTextMetrics(srcHdc, &lptm); | |
| 432 run.ascent = lptm.tmAscent; | |
| 433 run.descent = lptm.tmDescent; | |
| 434 ascent = Math.max(ascent, run.ascent); | |
| 435 descent = Math.max(descent, run.descent); | |
| 436 } | |
| 437 runs[line] = new StyleItem[lineRunCount]; | |
| 438 System.arraycopy(lineRuns, 0, runs[line], 0, lineRunCount); | |
| 439 | |
| 440 if (justify && wrapWidth !is -1 && run.softBreak && lineWidth > 0) { | |
| 441 if (line is 0) { | |
| 442 lineWidth += indent; | |
| 443 } else { | |
| 444 StyleItem[] previousLine = runs[line - 1]; | |
| 445 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 446 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 447 lineWidth += indent; | |
| 448 } | |
| 449 } | |
| 30 | 450 auto hHeap = OS.GetProcessHeap(); |
| 29 | 451 int newLineWidth = 0; |
| 452 for (int j = 0; j < runs[line].length; j++) { | |
| 453 StyleItem item = runs[line][j]; | |
| 454 int iDx = item.width * wrapWidth / lineWidth; | |
| 455 if (iDx !is item.width) { | |
| 30 | 456 item.justify = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, item.glyphCount * 4); |
| 457 if (item.justify is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 458 OS.ScriptJustify(item.visAttrs, item.advances, item.glyphCount, iDx - item.width, 2, item.justify); |
| 459 item.width = iDx; | |
| 460 } | |
| 461 newLineWidth += item.width; | |
| 462 } | |
| 463 lineWidth = newLineWidth; | |
| 464 } | |
| 465 this.lineWidth[line] = lineWidth; | |
| 466 | |
| 467 StyleItem lastRun = runs[line][lineRunCount - 1]; | |
| 468 int lastOffset = lastRun.start + lastRun.length; | |
| 469 runs[line] = reorder(runs[line], i is allRuns.length - 1); | |
| 470 lastRun = runs[line][lineRunCount - 1]; | |
| 471 if (run.softBreak && run !is lastRun) { | |
| 472 run.softBreak = run.lineBreak = false; | |
| 473 lastRun.softBreak = lastRun.lineBreak = true; | |
| 474 } | |
| 475 | |
| 476 lineWidth = getLineIndent(line); | |
| 477 for (int j = 0; j < runs[line].length; j++) { | |
| 478 runs[line][j].x = lineWidth; | |
| 479 lineWidth += runs[line][j].width; | |
| 480 } | |
| 481 line++; | |
| 482 lineY[line] = lineY[line - 1] + ascent + descent + lineSpacing; | |
| 483 lineOffset[line] = lastOffset; | |
| 484 lineRunCount = lineWidth = 0; | |
| 485 ascent = Math.max(0, this.ascent); | |
| 486 descent = Math.max(0, this.descent); | |
| 487 } | |
| 488 } | |
| 30 | 489 if (srcHdc !is null) OS.DeleteDC(srcHdc); |
| 29 | 490 if (gc is null) device.internal_dispose_GC(hDC, null); |
| 491 } | |
| 492 | |
| 213 | 493 void destroy () { |
| 29 | 494 freeRuns(); |
| 495 font = null; | |
| 496 text = null; | |
| 497 segmentsText = null; | |
| 498 tabs = null; | |
| 499 styles = null; | |
| 500 runs = null; | |
| 501 lineOffset = null; | |
| 502 lineY = null; | |
| 503 lineWidth = null; | |
| 30 | 504 if (mLangFontLink2 !is null) { |
| 29 | 505 /* Release() */ |
| 506 OS.VtblCall(2, mLangFontLink2); | |
| 30 | 507 mLangFontLink2 = null; |
| 29 | 508 } |
| 509 OS.OleUninitialize(); | |
| 510 } | |
| 511 | |
| 249 | 512 SCRIPT_ANALYSIS cloneScriptAnalysis ( inout SCRIPT_ANALYSIS src) { |
| 513 SCRIPT_ANALYSIS dst; | |
| 246 | 514 dst.eScript = src.eScript; |
| 515 dst.fRTL = src.fRTL; | |
| 516 dst.fLayoutRTL = src.fLayoutRTL; | |
| 517 dst.fLinkBefore = src.fLinkBefore; | |
| 518 dst.fLinkAfter = src.fLinkAfter; | |
| 519 dst.fLogicalOrder = src.fLogicalOrder; | |
| 520 dst.fNoGlyphIndex = src.fNoGlyphIndex; | |
| 521 dst.s.uBidiLevel = src.s.uBidiLevel; | |
| 522 dst.s.fOverrideDirection = src.s.fOverrideDirection; | |
| 523 dst.s.fInhibitSymSwap = src.s.fInhibitSymSwap; | |
| 524 dst.s.fCharShape = src.s.fCharShape; | |
| 525 dst.s.fDigitSubstitute = src.s.fDigitSubstitute; | |
| 526 dst.s.fInhibitLigate = src.s.fInhibitLigate; | |
| 527 dst.s.fDisplayZWG = src.s.fDisplayZWG; | |
| 528 dst.s.fArabicNumContext = src.s.fArabicNumContext; | |
| 529 dst.s.fGcpClusters = src.s.fGcpClusters; | |
| 530 dst.s.fReserved = src.s.fReserved; | |
| 531 dst.s.fEngineReserved = src.s.fEngineReserved; | |
| 532 return dst; | |
| 533 } | |
| 534 | |
| 29 | 535 /** |
| 536 * Draws the receiver's text using the specified GC at the specified | |
| 537 * point. | |
| 538 * | |
| 539 * @param gc the GC to draw | |
| 540 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 541 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 542 * | |
| 543 * @exception DWTException <ul> | |
| 544 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 545 * </ul> | |
| 546 * @exception IllegalArgumentException <ul> | |
| 547 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 548 * </ul> | |
| 549 */ | |
| 550 public void draw (GC gc, int x, int y) { | |
| 551 draw(gc, x, y, -1, -1, null, null); | |
| 552 } | |
| 553 | |
| 554 /** | |
| 555 * Draws the receiver's text using the specified GC at the specified | |
| 556 * point. | |
| 557 * | |
| 558 * @param gc the GC to draw | |
| 559 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 560 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 561 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 562 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 563 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 564 * @param selectionBackground selection background, or NULL to use the system default color | |
| 565 * | |
| 566 * @exception DWTException <ul> | |
| 567 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 568 * </ul> | |
| 569 * @exception IllegalArgumentException <ul> | |
| 570 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 571 * </ul> | |
| 572 */ | |
| 573 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground) { | |
| 574 draw(gc, x, y, selectionStart, selectionEnd, selectionForeground, selectionBackground, 0); | |
| 575 } | |
| 576 | |
| 577 /** | |
| 578 * Draws the receiver's text using the specified GC at the specified | |
| 579 * point. | |
| 580 * <p> | |
| 581 * The parameter <code>flags</code> can include one of <code>DWT.DELIMITER_SELECTION</code> | |
| 582 * or <code>DWT.FULL_SELECTION</code> to specify the selection behavior on all lines except | |
| 583 * for the last line, and can also include <code>DWT.LAST_LINE_SELECTION</code> to extend | |
| 584 * the specified selection behavior to the last line. | |
| 585 * </p> | |
| 586 * @param gc the GC to draw | |
| 587 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 588 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 589 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 590 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 591 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 592 * @param selectionBackground selection background, or NULL to use the system default color | |
| 593 * @param flags drawing options | |
| 594 * | |
| 595 * @exception DWTException <ul> | |
| 596 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 597 * </ul> | |
| 598 * @exception IllegalArgumentException <ul> | |
| 599 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 600 * </ul> | |
| 601 * | |
| 602 * @since 3.3 | |
| 603 */ | |
| 604 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground, int flags) { | |
| 605 checkLayout(); | |
| 606 computeRuns(gc); | |
| 607 if (gc is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 608 if (gc.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 609 if (selectionForeground !is null && selectionForeground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 610 if (selectionBackground !is null && selectionBackground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 30 | 611 int length = text.length; |
| 29 | 612 if (length is 0 && flags is 0) return; |
| 30 | 613 auto hdc = gc.handle; |
| 29 | 614 Rectangle clip = gc.getClipping(); |
| 615 GCData data = gc.data; | |
| 30 | 616 auto gdipGraphics = data.gdipGraphics; |
| 617 auto foreground = data.foreground; | |
| 618 auto alpha = data.alpha; | |
| 619 bool gdip = gdipGraphics !is null && (alpha !is 0xFF || data.foregroundPattern !is null); | |
| 620 HRGN clipRgn; | |
| 29 | 621 float[] lpXform = null; |
| 30 | 622 Gdip.Rect gdipRect; |
| 623 if (gdipGraphics !is null && !gdip) { | |
| 624 auto matrix = Gdip.Matrix_new(1, 0, 0, 1, 0, 0); | |
| 625 if (matrix is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 626 Gdip.Graphics_GetTransform(gdipGraphics, matrix); |
| 30 | 627 auto identity_ = gc.identity(); |
| 628 Gdip.Matrix_Invert(identity_); | |
| 629 Gdip.Matrix_Multiply(matrix, identity_, Gdip.MatrixOrderAppend); | |
| 630 Gdip.Matrix_delete(identity_); | |
| 29 | 631 if (!Gdip.Matrix_IsIdentity(matrix)) { |
| 632 lpXform = new float[6]; | |
| 213 | 633 Gdip.Matrix_GetElements(matrix, lpXform.ptr); |
| 29 | 634 } |
| 635 Gdip.Matrix_delete(matrix); | |
| 636 if ((data.style & DWT.MIRRORED) !is 0 && lpXform !is null) { | |
| 637 gdip = true; | |
| 638 lpXform = null; | |
| 639 } else { | |
| 640 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeNone); | |
| 30 | 641 auto rgn = Gdip.Region_new(); |
| 29 | 642 Gdip.Graphics_GetClip(gdipGraphics, rgn); |
| 643 if (!Gdip.Region_IsInfinite(rgn, gdipGraphics)) { | |
| 644 clipRgn = Gdip.Region_GetHRGN(rgn, gdipGraphics); | |
| 645 } | |
| 646 Gdip.Region_delete(rgn); | |
| 647 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeHalf); | |
| 648 hdc = Gdip.Graphics_GetHDC(gdipGraphics); | |
| 649 } | |
| 650 } | |
|
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
|
651 Gdip.Brush foregroundBrush; |
| 30 | 652 int state = 0; |
| 29 | 653 if (gdip) { |
| 654 gc.checkGC(GC.FOREGROUND); | |
| 655 foregroundBrush = gc.getFgBrush(); | |
| 656 } else { | |
| 657 state = OS.SaveDC(hdc); | |
| 658 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 659 OS.SetLayout(hdc, OS.GetLayout(hdc) | OS.LAYOUT_RTL); | |
| 660 } | |
| 661 if (lpXform !is null) { | |
| 662 OS.SetGraphicsMode(hdc, OS.GM_ADVANCED); | |
| 30 | 663 OS.SetWorldTransform(hdc, cast(XFORM*)lpXform.ptr); |
| 29 | 664 } |
| 30 | 665 if (clipRgn !is null) { |
| 29 | 666 OS.SelectClipRgn(hdc, clipRgn); |
| 667 OS.DeleteObject(clipRgn); | |
| 668 } | |
| 669 } | |
| 670 bool hasSelection = selectionStart <= selectionEnd && selectionStart !is -1 && selectionEnd !is -1; | |
| 671 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 672 selectionStart = Math.min(Math.max(0, selectionStart), length - 1); | |
| 673 selectionEnd = Math.min(Math.max(0, selectionEnd), length - 1); | |
| 674 if (selectionForeground is null) selectionForeground = device.getSystemColor(DWT.COLOR_LIST_SELECTION_TEXT); | |
| 675 if (selectionBackground is null) selectionBackground = device.getSystemColor(DWT.COLOR_LIST_SELECTION); | |
| 676 selectionStart = translateOffset(selectionStart); | |
| 677 selectionEnd = translateOffset(selectionEnd); | |
| 678 } | |
| 30 | 679 RECT rect; |
| 213 | 680 Gdip.Brush selBrush; |
| 681 Gdip.Pen selPen; | |
| 682 Gdip.Brush selBrushFg; | |
| 30 | 683 |
| 29 | 684 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { |
| 685 if (gdip) { | |
| 30 | 686 auto bg = selectionBackground.handle; |
| 687 auto argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 688 auto color = Gdip.Color_new(argb); | |
| 213 | 689 selBrush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 690 Gdip.Color_delete(color); |
| 30 | 691 auto fg = selectionForeground.handle; |
| 29 | 692 argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 693 color = Gdip.Color_new(argb); | |
| 213 | 694 selBrushFg = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 695 selPen = cast(Gdip.Pen) Gdip.Pen_new( cast(Gdip.Brush)selBrushFg, 1); | |
| 29 | 696 Gdip.Color_delete(color); |
| 697 } else { | |
| 213 | 698 selBrush = cast(Gdip.Brush)OS.CreateSolidBrush(selectionBackground.handle); |
| 699 selPen = cast(Gdip.Pen)OS.CreatePen(OS.PS_SOLID, 1, selectionForeground.handle); | |
| 29 | 700 } |
| 701 } | |
| 702 int offset = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? -1 : 0; | |
| 703 OS.SetBkMode(hdc, OS.TRANSPARENT); | |
| 704 for (int line=0; line<runs.length; line++) { | |
| 705 int drawX = x + getLineIndent(line); | |
| 706 int drawY = y + lineY[line]; | |
| 707 StyleItem[] lineRuns = runs[line]; | |
| 213 | 708 int lineHeight = lineY[line+1] - lineY[line] - lineSpacing; |
| 29 | 709 if (flags !is 0 && (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0)) { |
| 710 bool extents = false; | |
| 711 if (line is runs.length - 1 && (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 712 extents = true; | |
| 713 } else { | |
| 714 StyleItem run = lineRuns[lineRuns.length - 1]; | |
| 715 if (run.lineBreak && !run.softBreak) { | |
| 716 if (selectionStart <= run.start && run.start <= selectionEnd) extents = true; | |
| 717 } else { | |
| 718 int endOffset = run.start + run.length - 1; | |
| 719 if (selectionStart <= endOffset && endOffset < selectionEnd && (flags & DWT.FULL_SELECTION) !is 0) { | |
| 720 extents = true; | |
| 721 } | |
| 722 } | |
| 723 } | |
| 724 if (extents) { | |
| 725 int width; | |
| 726 if ((flags & DWT.FULL_SELECTION) !is 0) { | |
| 727 width = OS.IsWin95 ? 0x7FFF : 0x6FFFFFF; | |
| 728 } else { | |
| 213 | 729 width = lineHeight / 3; |
| 29 | 730 } |
| 731 if (gdip) { | |
| 213 | 732 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX + lineWidth[line], drawY, width, lineHeight); |
| 29 | 733 } else { |
| 734 OS.SelectObject(hdc, selBrush); | |
| 213 | 735 OS.PatBlt(hdc, drawX + lineWidth[line], drawY, width, lineHeight, OS.PATCOPY); |
| 29 | 736 } |
| 737 } | |
| 738 } | |
| 739 if (drawX > clip.x + clip.width) continue; | |
| 740 if (drawX + lineWidth[line] < clip.x) continue; | |
| 741 int baseline = Math.max(0, this.ascent); | |
| 213 | 742 int lineUnderlinePos = 0; |
| 29 | 743 for (int i = 0; i < lineRuns.length; i++) { |
| 744 baseline = Math.max(baseline, lineRuns[i].ascent); | |
| 213 | 745 lineUnderlinePos = Math.min(lineUnderlinePos, lineRuns[i].underlinePos); |
| 29 | 746 } |
| 747 int alignmentX = drawX; | |
| 748 for (int i = 0; i < lineRuns.length; i++) { | |
| 749 StyleItem run = lineRuns[i]; | |
| 750 if (run.length is 0) continue; | |
| 751 if (drawX > clip.x + clip.width) break; | |
| 752 if (drawX + run.width >= clip.x) { | |
| 753 if (!run.lineBreak || run.softBreak) { | |
| 754 int end = run.start + run.length - 1; | |
| 755 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 756 if (fullSelection) { | |
| 757 if (gdip) { | |
| 213 | 758 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX, drawY, run.width, lineHeight); |
| 29 | 759 } else { |
| 760 OS.SelectObject(hdc, selBrush); | |
| 213 | 761 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 762 } |
| 763 } else { | |
| 764 if (run.style !is null && run.style.background !is null) { | |
| 30 | 765 auto bg = run.style.background.handle; |
| 29 | 766 if (gdip) { |
| 767 int argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 30 | 768 auto color = Gdip.Color_new(argb); |
| 769 auto brush = Gdip.SolidBrush_new(color); | |
| 213 | 770 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)brush, drawX, drawY, run.width, lineHeight); |
| 29 | 771 Gdip.Color_delete(color); |
| 772 Gdip.SolidBrush_delete(brush); | |
| 773 } else { | |
| 30 | 774 auto hBrush = OS.CreateSolidBrush (bg); |
| 775 auto oldBrush = OS.SelectObject(hdc, hBrush); | |
| 213 | 776 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 777 OS.SelectObject(hdc, oldBrush); |
| 778 OS.DeleteObject(hBrush); | |
| 779 } | |
| 780 } | |
| 781 bool partialSelection = hasSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 782 if (partialSelection) { | |
| 783 int selStart = Math.max(selectionStart, run.start) - run.start; | |
| 784 int selEnd = Math.min(selectionEnd, end) - run.start; | |
| 785 int cChars = run.length; | |
| 786 int gGlyphs = run.glyphCount; | |
| 30 | 787 int piX; |
| 788 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 789 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 790 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 791 rect.left = drawX + runX; |
| 792 rect.top = drawY; | |
| 30 | 793 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 794 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 795 rect.right = drawX + runX; |
| 213 | 796 rect.bottom = drawY + lineHeight; |
| 29 | 797 if (gdip) { |
| 213 | 798 if (rect.left > rect.right) { |
| 799 int tmp = rect.left; | |
| 800 rect.left = rect.right; | |
| 801 rect.right = tmp; | |
| 802 } | |
|
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
|
803 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); |
| 29 | 804 } else { |
| 805 OS.SelectObject(hdc, selBrush); | |
| 806 OS.PatBlt(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); | |
| 807 } | |
| 808 } | |
| 809 } | |
| 810 } | |
| 811 } | |
| 812 drawX += run.width; | |
| 813 } | |
| 213 | 814 RECT* borderClip = null; |
| 29 | 815 drawX = alignmentX; |
| 816 for (int i = 0; i < lineRuns.length; i++) { | |
| 817 StyleItem run = lineRuns[i]; | |
| 818 if (run.length is 0) continue; | |
| 819 if (drawX > clip.x + clip.width) break; | |
| 820 if (drawX + run.width >= clip.x) { | |
| 821 if (!run.tab && (!run.lineBreak || run.softBreak) && !(run.style !is null && run.style.metrics !is null)) { | |
| 822 int end = run.start + run.length - 1; | |
| 823 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 824 bool partialSelection = hasSelection && !fullSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 825 OS.SelectObject(hdc, getItemFont(run)); | |
| 826 int drawRunY = drawY + (baseline - run.ascent); | |
| 827 if (partialSelection) { | |
| 828 int selStart = Math.max(selectionStart, run.start) - run.start; | |
| 829 int selEnd = Math.min(selectionEnd, end) - run.start; | |
| 830 int cChars = run.length; | |
| 831 int gGlyphs = run.glyphCount; | |
| 30 | 832 int piX; |
| 833 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 834 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 835 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 836 rect.left = drawX + runX; |
| 837 rect.top = drawY; | |
| 30 | 838 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 839 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 840 rect.right = drawX + runX; |
| 841 rect.bottom = drawY + lineHeight; | |
| 842 } | |
| 843 if (gdip) { | |
| 844 OS.BeginPath(hdc); | |
| 30 | 845 OS.ScriptTextOut(hdc, run.psc, drawX, drawRunY, 0, null, &run.analysis , null, 0, run.glyphs, run.glyphCount, run.advances, run.justify, run.goffsets); |
| 29 | 846 OS.EndPath(hdc); |
| 847 int count = OS.GetPath(hdc, null, null, 0); | |
| 848 int[] points = new int[count*2]; | |
| 30 | 849 ubyte[] types = new ubyte[count]; |
| 850 OS.GetPath(hdc, cast(POINT*)points.ptr, types.ptr, count); | |
| 29 | 851 for (int typeIndex = 0; typeIndex < types.length; typeIndex++) { |
| 852 int newType = 0; | |
| 853 int type = types[typeIndex] & 0xFF; | |
| 854 switch (type & ~OS.PT_CLOSEFIGURE) { | |
| 855 case OS.PT_MOVETO: newType = Gdip.PathPointTypeStart; break; | |
| 856 case OS.PT_LINETO: newType = Gdip.PathPointTypeLine; break; | |
| 857 case OS.PT_BEZIERTO: newType = Gdip.PathPointTypeBezier; break; | |
| 81 | 858 default: |
| 29 | 859 } |
| 860 if ((type & OS.PT_CLOSEFIGURE) !is 0) newType |= Gdip.PathPointTypeCloseSubpath; | |
| 861 types[typeIndex] = cast(byte)newType; | |
| 862 } | |
| 213 | 863 auto path = Gdip.GraphicsPath_new(cast(Gdip.Point*)points.ptr, types.ptr, count, Gdip.FillModeAlternate); |
| 30 | 864 if (path is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 865 auto brush = foregroundBrush; | |
| 29 | 866 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
|
867 brush = cast(Gdip.Brush)selBrushFg; |
| 29 | 868 } else { |
| 869 if (run.style !is null && run.style.foreground !is null) { | |
| 30 | 870 auto fg = run.style.foreground.handle; |
| 29 | 871 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 30 | 872 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
|
873 brush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 874 Gdip.Color_delete(color); |
| 875 } | |
| 876 } | |
| 877 int gstate = 0; | |
| 878 if (partialSelection) { | |
| 879 gdipRect.X = rect.left; | |
| 880 gdipRect.Y = rect.top; | |
| 881 gdipRect.Width = rect.right - rect.left; | |
| 882 gdipRect.Height = rect.bottom - rect.top; | |
| 883 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 884 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeExclude); |
| 29 | 885 } |
| 886 int antialias = Gdip.Graphics_GetSmoothingMode(gdipGraphics), textAntialias = 0; | |
| 887 int mode = Gdip.Graphics_GetTextRenderingHint(data.gdipGraphics); | |
| 888 switch (mode) { | |
| 889 case Gdip.TextRenderingHintSystemDefault: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 890 case Gdip.TextRenderingHintSingleBitPerPixel: | |
| 891 case Gdip.TextRenderingHintSingleBitPerPixelGridFit: textAntialias = Gdip.SmoothingModeNone; break; | |
| 892 case Gdip.TextRenderingHintAntiAlias: | |
| 893 case Gdip.TextRenderingHintAntiAliasGridFit: | |
| 894 case Gdip.TextRenderingHintClearTypeGridFit: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 81 | 895 default: |
| 29 | 896 } |
| 897 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); | |
| 898 int gstate2 = 0; | |
| 899 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 900 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 901 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 902 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 903 } | |
| 904 Gdip.Graphics_FillPath(gdipGraphics, brush, path); | |
| 905 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 906 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 907 } | |
| 908 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); | |
| 213 | 909 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, brush, null, alpha); |
| 29 | 910 if (partialSelection) { |
| 911 Gdip.Graphics_Restore(gdipGraphics, gstate); | |
| 912 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 913 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeIntersect); |
| 29 | 914 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); |
| 213 | 915 if ((data.style & DWT.MIRRORED) !is 0) { |
| 916 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 917 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 918 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 919 } | |
| 920 Gdip.Graphics_FillPath(gdipGraphics, selBrushFg, path); | |
| 921 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 922 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 923 } | |
| 29 | 924 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); |
| 213 | 925 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, selBrushFg, &rect, alpha); |
| 29 | 926 Gdip.Graphics_Restore(gdipGraphics, gstate); |
| 927 } | |
| 213 | 928 borderClip = drawBorder(gdip, gdipGraphics, x, drawY, lineHeight, foregroundBrush, selBrushFg, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); |
| 29 | 929 Gdip.GraphicsPath_delete(path); |
|
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930 if ( brush !is cast(Gdip.Brush)selBrushFg && brush !is cast(Gdip.Brush)foregroundBrush) |
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931 Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); |
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932 } else { |
| 213 | 933 auto fg = foreground; |
|
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934 if (fullSelection) { |
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935 fg = selectionForeground.handle; |
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936 } else { |
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937 if (run.style !is null && run.style.foreground !is null) fg = run.style.foreground.handle; |
| 29 | 938 } |
| 939 OS.SetTextColor(hdc, fg); | |
| 30 | 940 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 | 941 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)fg, null, alpha); |
| 29 | 942 if (partialSelection && fg !is selectionForeground.handle) { |
| 943 OS.SetTextColor(hdc, selectionForeground.handle); | |
| 30 | 944 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 | 945 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)selectionForeground.handle, &rect, alpha); |
| 29 | 946 } |
| 213 | 947 int selForeground = selectionForeground !is null ? selectionForeground.handle : 0; |
| 948 borderClip = drawBorder(gdip, hdc, x, drawY, lineHeight, cast(void*)foreground, cast(void*)selForeground, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); | |
| 29 | 949 } |
| 950 } | |
| 951 } | |
| 952 drawX += run.width; | |
| 953 } | |
| 954 } | |
| 955 if (gdip) { | |
|
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956 if (selBrush !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrush); |
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957 if (selBrushFg !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrushFg); |
| 213 | 958 if (selPen !is null) Gdip.Pen_delete(selPen); |
| 29 | 959 } else { |
| 960 OS.RestoreDC(hdc, state); | |
| 30 | 961 if (gdipGraphics !is null) Gdip.Graphics_ReleaseHDC(gdipGraphics, hdc); |
| 962 if (selBrush !is null) OS.DeleteObject (selBrush); | |
| 963 if (selPen !is null) OS.DeleteObject (selPen); | |
| 29 | 964 } |
| 965 } | |
| 966 | |
| 213 | 967 void drawLines(bool advance, void* graphics, int x, int lineBaseline, int lineUnderlinePos, int lineBottom, StyleItem[] line, int index, void* color, RECT* clipRect, int alpha) { |
| 968 StyleItem run = line[index]; | |
| 969 TextStyle style = run.style; | |
| 970 if (style is null) return; | |
| 971 if (!style.underline && !style.strikeout) return; | |
| 972 int runX = x + run.x; | |
| 973 int underlineY = lineBaseline - lineUnderlinePos; | |
| 974 int strikeoutY = lineBaseline - run.strikeoutPos; | |
| 975 if (advance) { | |
| 976 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeNone); | |
| 977 auto brush = color; | |
| 978 if (style.underline) { | |
| 979 if (style.underlineColor !is null) { | |
| 980 int fg = style.underlineColor.handle; | |
| 981 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 982 auto gdiColor = Gdip.Color_new(argb); | |
| 983 brush = Gdip.SolidBrush_new(gdiColor); | |
| 984 Gdip.Color_delete(gdiColor); | |
| 985 } | |
| 986 switch (style.underlineStyle) { | |
| 987 case DWT.UNDERLINE_SQUIGGLE: | |
| 988 case DWT.UNDERLINE_ERROR: { | |
| 989 int squigglyThickness = 1; | |
| 990 int squigglyHeight = 2 * squigglyThickness; | |
| 991 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 992 int squigglyX = runX; | |
| 993 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 994 squigglyX = x + line[i - 1].x; | |
| 995 } | |
| 996 int gstate = 0; | |
| 997 if (clipRect is null) { | |
| 998 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 999 Gdip.Rect gdipRect; | |
| 1000 gdipRect.X = runX; | |
| 1001 gdipRect.Y = squigglyY; | |
| 1002 gdipRect.Width = run.width + 1; | |
| 1003 gdipRect.Height = squigglyY + squigglyHeight + 1; | |
| 1004 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1005 } | |
| 1006 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1007 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, squigglyThickness); | |
| 1008 Gdip.Graphics_DrawLines(cast(Gdip.Graphics)graphics, pen, cast(Gdip.Point*)points.ptr, points.length / 2); | |
| 1009 Gdip.Pen_delete(pen); | |
| 1010 if (gstate !is 0) Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1011 break; | |
| 1012 } | |
| 1013 case DWT.UNDERLINE_SINGLE: | |
| 1014 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1015 break; | |
| 1016 case DWT.UNDERLINE_DOUBLE: | |
| 1017 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1018 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY + run.underlineThickness * 2, run.width, run.underlineThickness); | |
| 1019 break; | |
| 1020 case UNDERLINE_IME_THICK: | |
| 1021 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX - run.underlineThickness, underlineY, run.width, run.underlineThickness * 2); | |
| 1022 break; | |
| 1023 case UNDERLINE_IME_DOT: | |
| 1024 case UNDERLINE_IME_DASH: { | |
| 1025 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, 1); | |
| 1026 int dashStyle = style.underlineStyle is UNDERLINE_IME_DOT ? Gdip.DashStyleDot : Gdip.DashStyleDash; | |
| 1027 Gdip.Pen_SetDashStyle(pen, dashStyle); | |
| 1028 Gdip.Graphics_DrawLine(cast(Gdip.Graphics)graphics, pen, runX, underlineY, runX + run.width, underlineY); | |
| 1029 Gdip.Pen_delete(pen); | |
| 1030 break; | |
| 1031 } | |
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1032 default: |
| 213 | 1033 } |
| 1034 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1035 } | |
| 1036 if (style.strikeout) { | |
| 1037 if (style.strikeoutColor !is null) { | |
| 1038 int fg = style.strikeoutColor.handle; | |
| 1039 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 1040 auto gdiColor = Gdip.Color_new(argb); | |
| 1041 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1042 Gdip.Color_delete(gdiColor); | |
| 1043 } | |
| 1044 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, strikeoutY, run.width, run.strikeoutThickness); | |
| 1045 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1046 } | |
| 1047 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeHalf); | |
| 1048 } else { | |
| 1049 uint colorRefUnderline = cast(uint)color; | |
| 1050 uint colorRefStrikeout = cast(uint)color; | |
| 1051 int /*long*/ brushUnderline = 0; | |
| 1052 int /*long*/ brushStrikeout = 0; | |
| 1053 RECT rect; | |
| 1054 if (style.underline) { | |
| 1055 if (style.underlineColor !is null) { | |
| 1056 colorRefUnderline = style.underlineColor.handle; | |
| 1057 } | |
| 1058 switch (style.underlineStyle) { | |
| 1059 case DWT.UNDERLINE_SQUIGGLE: | |
| 1060 case DWT.UNDERLINE_ERROR: { | |
| 1061 int squigglyThickness = 1; | |
| 1062 int squigglyHeight = 2 * squigglyThickness; | |
| 1063 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 1064 int squigglyX = runX; | |
| 1065 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 1066 squigglyX = x + line[i - 1].x; | |
| 1067 } | |
| 1068 int state = OS.SaveDC(graphics); | |
| 1069 if (clipRect !is null) { | |
| 1070 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1071 } else { | |
| 1072 OS.IntersectClipRect(graphics, runX, squigglyY, runX + run.width + 1, squigglyY + squigglyHeight + 1); | |
| 1073 } | |
| 1074 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1075 auto pen = OS.CreatePen(OS.PS_SOLID, squigglyThickness, colorRefUnderline); | |
| 1076 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1077 OS.Polyline(graphics, cast(POINT*)points.ptr, points.length / 2); | |
| 1078 int length_ = points.length; | |
| 1079 if (length_ >= 2 && squigglyThickness <= 1) { | |
| 1080 OS.SetPixel (graphics, points[length_ - 2], points[length_ - 1], colorRefUnderline); | |
| 1081 } | |
| 1082 OS.RestoreDC(graphics, state); | |
| 1083 OS.SelectObject(graphics, oldPen); | |
| 1084 OS.DeleteObject(pen); | |
| 1085 break; | |
| 1086 } | |
| 1087 case DWT.UNDERLINE_SINGLE: | |
| 1088 brushUnderline = cast(uint) OS.CreateSolidBrush(colorRefUnderline); | |
| 1089 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1090 if (clipRect !is null) { | |
| 1091 rect.left = Math.max(rect.left, clipRect.left); | |
| 1092 rect.right = Math.min(rect.right, clipRect.right); | |
| 1093 } | |
| 1094 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1095 break; | |
| 1096 case DWT.UNDERLINE_DOUBLE: | |
| 1097 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1098 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1099 if (clipRect !is null) { | |
| 1100 rect.left = Math.max(rect.left, clipRect.left); | |
| 1101 rect.right = Math.min(rect.right, clipRect.right); | |
| 1102 } | |
| 1103 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1104 OS.SetRect(&rect, runX, underlineY + run.underlineThickness * 2, runX + run.width, underlineY + run.underlineThickness * 3); | |
| 1105 if (clipRect !is null) { | |
| 1106 rect.left = Math.max(rect.left, clipRect.left); | |
| 1107 rect.right = Math.min(rect.right, clipRect.right); | |
| 1108 } | |
| 1109 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1110 break; | |
| 1111 case UNDERLINE_IME_THICK: | |
| 1112 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1113 OS.SetRect(&rect, runX, underlineY - run.underlineThickness, runX + run.width, underlineY + run.underlineThickness); | |
| 1114 if (clipRect !is null) { | |
| 1115 rect.left = Math.max(rect.left, clipRect.left); | |
| 1116 rect.right = Math.min(rect.right, clipRect.right); | |
| 1117 } | |
| 1118 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1119 break; | |
| 1120 case UNDERLINE_IME_DASH: | |
| 1121 case UNDERLINE_IME_DOT: { | |
| 1122 underlineY = lineBaseline + run.descent; | |
| 1123 int penStyle = style.underlineStyle is UNDERLINE_IME_DASH ? OS.PS_DASH : OS.PS_DOT; | |
| 1124 auto pen = OS.CreatePen(penStyle, 1, colorRefUnderline); | |
| 1125 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1126 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1127 if (clipRect !is null) { | |
| 1128 rect.left = Math.max(rect.left, clipRect.left); | |
| 1129 rect.right = Math.min(rect.right, clipRect.right); | |
| 1130 } | |
| 1131 OS.MoveToEx(graphics, rect.left, rect.top, null); | |
| 1132 OS.LineTo(graphics, rect.right, rect.top); | |
| 1133 OS.SelectObject(graphics, oldPen); | |
| 1134 OS.DeleteObject(pen); | |
| 1135 break; | |
| 1136 } | |
|
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|
1137 default: |
| 213 | 1138 } |
| 1139 } | |
| 1140 if (style.strikeout) { | |
| 1141 if (style.strikeoutColor !is null) { | |
| 1142 colorRefStrikeout = style.strikeoutColor.handle; | |
| 1143 } | |
| 1144 if (brushUnderline !is 0 && colorRefStrikeout is colorRefUnderline) { | |
| 1145 brushStrikeout = brushUnderline; | |
| 1146 } else { | |
| 1147 brushStrikeout = cast(int) OS.CreateSolidBrush(colorRefStrikeout); | |
| 1148 } | |
| 1149 OS.SetRect(&rect, runX, strikeoutY, runX + run.width, strikeoutY + run.strikeoutThickness); | |
| 1150 if (clipRect !is null) { | |
| 1151 rect.left = Math.max(rect.left, clipRect.left); | |
| 1152 rect.right = Math.min(rect.right, clipRect.right); | |
| 1153 } | |
| 1154 OS.FillRect(graphics, &rect, cast(void*)brushStrikeout); | |
| 1155 } | |
| 1156 if (brushUnderline !is 0) OS.DeleteObject(cast(void*)brushUnderline); | |
| 1157 if (brushStrikeout !is 0 && brushStrikeout !is brushUnderline) OS.DeleteObject(cast(void*)brushStrikeout); | |
| 1158 } | |
| 1159 } | |
| 1160 | |
| 1161 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) { | |
| 1162 StyleItem run = line[index]; | |
| 1163 TextStyle style = run.style; | |
| 1164 if (style is null) return null; | |
| 1165 if (style.borderStyle is DWT.NONE) return null; | |
| 1166 if (rect !is null) { | |
| 1167 if (clipRect is null) { | |
| 1168 clipRect = new RECT (); | |
| 1169 OS.SetRect(clipRect, -1, rect.top, -1, rect.bottom); | |
| 1170 } | |
| 1171 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1172 if (run.start <= selectionStart && selectionStart <= run.start + run.length) { | |
| 1173 if (run.analysis.fRTL ^ isRTL) { | |
| 1174 clipRect.right = rect.left; | |
| 1175 } else { | |
| 1176 clipRect.left = rect.left; | |
| 1177 } | |
| 1178 } | |
| 1179 if (run.start <= selectionEnd && selectionEnd <= run.start + run.length) { | |
| 1180 if (run.analysis.fRTL ^ isRTL) { | |
| 1181 clipRect.left = rect.right; | |
| 1182 } else { | |
| 1183 clipRect.right = rect.right; | |
| 1184 } | |
| 1185 } | |
| 1186 } | |
| 1187 if (index + 1 >= line.length || !style.isAdherentBorder(line[index + 1].style)) { | |
| 1188 int left = run.x; | |
| 1189 for (int i = index; i > 0 && style.isAdherentBorder(line[i - 1].style); i--) { | |
| 1190 left = line[i - 1].x; | |
| 1191 } | |
| 1192 if (advance) { | |
| 1193 auto brush = color; | |
| 1194 int customColor = -1; | |
| 1195 if (style.borderColor !is null) { | |
| 1196 customColor = style.borderColor.handle; | |
| 1197 } else { | |
| 1198 if (style.foreground !is null) { | |
| 1199 customColor = style.foreground.handle; | |
| 1200 } | |
| 1201 if (fullSelection && clipRect is null) { | |
| 1202 customColor = -1; | |
| 1203 brush = selectionColor; | |
| 1204 } | |
| 1205 } | |
| 1206 if (customColor !is -1) { | |
| 1207 int argb = ((alpha & 0xFF) << 24) | ((customColor >> 16) & 0xFF) | (customColor & 0xFF00) | ((customColor & 0xFF) << 16); | |
| 1208 auto gdiColor = Gdip.Color_new(argb); | |
| 1209 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1210 Gdip.Color_delete(gdiColor); | |
| 1211 } | |
| 1212 int lineWidth = 1; | |
| 1213 int lineStyle = Gdip.DashStyleSolid; | |
| 1214 switch (style.borderStyle) { | |
| 1215 case DWT.BORDER_SOLID: break; | |
| 1216 case DWT.BORDER_DASH: lineStyle = Gdip.DashStyleDash; break; | |
| 1217 case DWT.BORDER_DOT: lineStyle = Gdip.DashStyleDot; break; | |
|
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1218 default: |
| 213 | 1219 } |
| 1220 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, lineWidth); | |
| 1221 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1222 float gdipXOffset = 0.5f, gdipYOffset = 0.5f; | |
| 1223 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, gdipXOffset, gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1224 if (style.borderColor is null && clipRect !is null) { | |
| 1225 int gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1226 if (clipRect.left is -1) clipRect.left = 0; | |
| 1227 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1228 Gdip.Rect gdipRect; | |
| 1229 gdipRect.X = clipRect.left; | |
| 1230 gdipRect.Y = clipRect.top; | |
| 1231 gdipRect.Width = clipRect.right - clipRect.left; | |
| 1232 gdipRect.Height = clipRect.bottom - clipRect.top; | |
| 1233 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeExclude); | |
| 1234 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1235 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1236 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1237 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1238 auto selPen = Gdip.Pen_new(cast(Gdip.Brush)selectionColor, lineWidth); | |
| 1239 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1240 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, selPen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1241 Gdip.Pen_delete(selPen); | |
| 1242 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1243 } else { | |
| 1244 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1245 } | |
| 1246 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, -gdipXOffset, -gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1247 Gdip.Pen_delete(pen); | |
| 1248 if (customColor !is -1) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1249 } else { | |
| 1250 if (style.borderColor !is null) { | |
| 1251 color = cast(void*)style.borderColor.handle; | |
| 1252 } else { | |
| 1253 if (style.foreground !is null) { | |
| 1254 color = cast(void*)style.foreground.handle; | |
| 1255 } | |
| 1256 if (fullSelection && clipRect is null) { | |
| 1257 color = selectionColor; | |
| 1258 } | |
| 1259 } | |
| 1260 int lineWidth = 1; | |
| 1261 int lineStyle = OS.PS_SOLID; | |
| 1262 switch (style.borderStyle) { | |
| 1263 case DWT.BORDER_SOLID: break; | |
| 1264 case DWT.BORDER_DASH: lineStyle = OS.PS_DASH; break; | |
| 1265 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
|
1266 default: |
| 213 | 1267 } |
| 1268 LOGBRUSH logBrush; | |
| 1269 logBrush.lbStyle = OS.BS_SOLID; | |
| 1270 logBrush.lbColor = cast(uint)color; | |
| 1271 auto newPen = OS.ExtCreatePen(lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1272 auto oldPen = OS.SelectObject(graphics, newPen); | |
| 1273 auto oldBrush = OS.SelectObject(graphics, OS.GetStockObject(OS.NULL_BRUSH)); | |
| 1274 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1275 if (style.borderColor is null && clipRect !is null && color !is selectionColor) { | |
| 1276 int state = OS.SaveDC(graphics); | |
| 1277 if (clipRect.left is -1) clipRect.left = 0; | |
| 1278 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1279 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1280 logBrush.lbColor = cast(uint)selectionColor; | |
| 1281 auto selPen = OS.ExtCreatePen (lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1282 OS.SelectObject(graphics, selPen); | |
| 1283 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1284 OS.RestoreDC(graphics, state); | |
| 1285 OS.SelectObject(graphics, newPen); | |
| 1286 OS.DeleteObject(selPen); | |
| 1287 } | |
| 1288 OS.SelectObject(graphics, oldBrush); | |
| 1289 OS.SelectObject(graphics, oldPen); | |
| 1290 OS.DeleteObject(newPen); | |
| 1291 } | |
| 1292 return null; | |
| 1293 } | |
| 1294 return clipRect; | |
| 1295 } | |
| 1296 | |
| 1297 int[] computePolyline(int left, int top, int right, int bottom) { | |
| 1298 int height = bottom - top; // can be any number | |
| 1299 int width = 2 * height; // must be even | |
| 1300 int peaks = Compatibility.ceil(right - left, width); | |
| 1301 if (peaks is 0 && right - left > 2) { | |
| 1302 peaks = 1; | |
| 1303 } | |
| 1304 int length_ = ((2 * peaks) + 1) * 2; | |
| 1305 if (length_ < 0) return new int[0]; | |
| 1306 | |
| 1307 int[] coordinates = new int[length_]; | |
| 1308 for (int i = 0; i < peaks; i++) { | |
| 1309 int index = 4 * i; | |
| 1310 coordinates[index] = left + (width * i); | |
| 1311 coordinates[index+1] = bottom; | |
| 1312 coordinates[index+2] = coordinates[index] + width / 2; | |
| 1313 coordinates[index+3] = top; | |
| 1314 } | |
| 1315 coordinates[length_-2] = left + (width * peaks); | |
| 1316 coordinates[length_-1] = bottom; | |
| 1317 return coordinates; | |
| 1318 } | |
| 1319 | |
| 29 | 1320 void freeRuns () { |
| 1321 if (allRuns is null) return; | |
| 1322 for (int i=0; i<allRuns.length; i++) { | |
| 1323 StyleItem run = allRuns[i]; | |
| 1324 run.free(); | |
| 1325 } | |
| 1326 allRuns = null; | |
| 1327 runs = null; | |
| 1328 segmentsText = null; | |
| 1329 } | |
| 1330 | |
| 1331 /** | |
| 1332 * Returns the receiver's horizontal text alignment, which will be one | |
| 1333 * of <code>DWT.LEFT</code>, <code>DWT.CENTER</code> or | |
| 1334 * <code>DWT.RIGHT</code>. | |
| 1335 * | |
| 1336 * @return the alignment used to positioned text horizontally | |
| 1337 * | |
| 1338 * @exception DWTException <ul> | |
| 1339 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1340 * </ul> | |
| 1341 */ | |
| 1342 public int getAlignment () { | |
| 1343 checkLayout(); | |
| 1344 return alignment; | |
| 1345 } | |
| 1346 | |
| 1347 /** | |
| 1348 * Returns the ascent of the receiver. | |
| 1349 * | |
| 1350 * @return the ascent | |
| 1351 * | |
| 1352 * @exception DWTException <ul> | |
| 1353 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1354 * </ul> | |
| 1355 * | |
| 1356 * @see #getDescent() | |
| 1357 * @see #setDescent(int) | |
| 1358 * @see #setAscent(int) | |
| 1359 * @see #getLineMetrics(int) | |
| 1360 */ | |
| 1361 public int getAscent () { | |
| 1362 checkLayout(); | |
| 1363 return ascent; | |
| 1364 } | |
| 1365 | |
| 1366 /** | |
| 213 | 1367 * Returns the bounds of the receiver. The width returned is either the |
| 1368 * width of the longest line or the width set using {@link TextLayout#setWidth(int)}. | |
| 1369 * To obtain the text bounds of a line use {@link TextLayout#getLineBounds(int)}. | |
| 29 | 1370 * |
| 1371 * @return the bounds of the receiver | |
| 1372 * | |
| 1373 * @exception DWTException <ul> | |
| 1374 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1375 * </ul> | |
| 213 | 1376 * |
| 1377 * @see #setWidth(int) | |
| 1378 * @see #getLineBounds(int) | |
| 29 | 1379 */ |
| 1380 public Rectangle getBounds () { | |
| 1381 checkLayout(); | |
| 1382 computeRuns(null); | |
| 1383 int width = 0; | |
| 1384 if (wrapWidth !is -1) { | |
| 1385 width = wrapWidth; | |
| 1386 } else { | |
| 1387 for (int line=0; line<runs.length; line++) { | |
| 1388 width = Math.max(width, lineWidth[line] + getLineIndent(line)); | |
| 1389 } | |
| 1390 } | |
| 1391 return new Rectangle (0, 0, width, lineY[lineY.length - 1]); | |
| 1392 } | |
| 1393 | |
| 1394 /** | |
| 1395 * Returns the bounds for the specified range of characters. The | |
| 1396 * bounds is the smallest rectangle that encompasses all characters | |
| 1397 * in the range. The start and end offsets are inclusive and will be | |
| 1398 * clamped if out of range. | |
| 1399 * | |
| 1400 * @param start the start offset | |
| 1401 * @param end the end offset | |
| 1402 * @return the bounds of the character range | |
| 1403 * | |
| 1404 * @exception DWTException <ul> | |
| 1405 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1406 * </ul> | |
| 1407 */ | |
| 1408 public Rectangle getBounds (int start, int end) { | |
| 1409 checkLayout(); | |
| 1410 computeRuns(null); | |
| 227 | 1411 int length = text.length; |
| 1412 if (length is 0) return new Rectangle(0, 0, 0, 0); | |
| 29 | 1413 if (start > end) return new Rectangle(0, 0, 0, 0); |
| 227 | 1414 start = Math.min(Math.max(0, start), length - 1); |
| 1415 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 1416 start = translateOffset(start); |
| 1417 end = translateOffset(end); | |
| 1418 int left = 0x7fffffff, right = 0; | |
| 1419 int top = 0x7fffffff, bottom = 0; | |
| 1420 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1421 for (int i = 0; i < allRuns.length - 1; i++) { | |
| 1422 StyleItem run = allRuns[i]; | |
| 1423 int runEnd = run.start + run.length; | |
| 1424 if (runEnd <= start) continue; | |
| 1425 if (run.start > end) break; | |
| 1426 int runLead = run.x; | |
| 1427 int runTrail = run.x + run.width; | |
| 1428 if (run.start <= start && start < runEnd) { | |
| 1429 int cx = 0; | |
| 1430 if (run.style !is null && run.style.metrics !is null) { | |
| 1431 GlyphMetrics metrics = run.style.metrics; | |
| 1432 cx = metrics.width * (start - run.start); | |
| 1433 } else if (!run.tab) { | |
| 30 | 1434 int piX; |
| 1435 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1436 OS.ScriptCPtoX(start - run.start, false, run.length, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1437 cx = isRTL ? run.width - piX : piX; | |
| 29 | 1438 } |
| 1439 if (run.analysis.fRTL ^ isRTL) { | |
| 1440 runTrail = run.x + cx; | |
| 1441 } else { | |
| 1442 runLead = run.x + cx; | |
| 1443 } | |
| 1444 } | |
| 1445 if (run.start <= end && end < runEnd) { | |
| 1446 int cx = run.width; | |
| 1447 if (run.style !is null && run.style.metrics !is null) { | |
| 1448 GlyphMetrics metrics = run.style.metrics; | |
| 1449 cx = metrics.width * (end - run.start + 1); | |
| 1450 } else if (!run.tab) { | |
| 30 | 1451 int piX; |
| 1452 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1453 OS.ScriptCPtoX(end - run.start, true, run.length, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1454 cx = isRTL ? run.width - piX : piX; | |
| 29 | 1455 } |
| 1456 if (run.analysis.fRTL ^ isRTL) { | |
| 1457 runLead = run.x + cx; | |
| 1458 } else { | |
| 1459 runTrail = run.x + cx; | |
| 1460 } | |
| 1461 } | |
| 1462 int lineIndex = 0; | |
| 1463 while (lineIndex < runs.length && lineOffset[lineIndex + 1] <= run.start) { | |
| 1464 lineIndex++; | |
| 1465 } | |
| 1466 left = Math.min(left, runLead); | |
| 1467 right = Math.max(right, runTrail); | |
| 1468 top = Math.min(top, lineY[lineIndex]); | |
| 1469 bottom = Math.max(bottom, lineY[lineIndex + 1] - lineSpacing); | |
| 1470 } | |
| 1471 return new Rectangle(left, top, right - left, bottom - top); | |
| 1472 } | |
| 1473 | |
| 1474 /** | |
| 1475 * Returns the descent of the receiver. | |
| 1476 * | |
| 1477 * @return the descent | |
| 1478 * | |
| 1479 * @exception DWTException <ul> | |
| 1480 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1481 * </ul> | |
| 1482 * | |
| 1483 * @see #getAscent() | |
| 1484 * @see #setAscent(int) | |
| 1485 * @see #setDescent(int) | |
| 1486 * @see #getLineMetrics(int) | |
| 1487 */ | |
| 1488 public int getDescent () { | |
| 1489 checkLayout(); | |
| 1490 return descent; | |
| 1491 } | |
| 1492 | |
| 1493 /** | |
| 1494 * Returns the default font currently being used by the receiver | |
| 1495 * to draw and measure text. | |
| 1496 * | |
| 1497 * @return the receiver's font | |
| 1498 * | |
| 1499 * @exception DWTException <ul> | |
| 1500 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1501 * </ul> | |
| 1502 */ | |
| 1503 public Font getFont () { | |
| 1504 checkLayout(); | |
| 1505 return font; | |
| 1506 } | |
| 1507 | |
| 1508 /** | |
| 1509 * Returns the receiver's indent. | |
| 1510 * | |
| 1511 * @return the receiver's indent | |
| 1512 * | |
| 1513 * @exception DWTException <ul> | |
| 1514 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1515 * </ul> | |
| 1516 * | |
| 1517 * @since 3.2 | |
| 1518 */ | |
| 1519 public int getIndent () { | |
| 1520 checkLayout(); | |
| 1521 return indent; | |
| 1522 } | |
| 1523 | |
| 1524 /** | |
| 1525 * Returns the receiver's justification. | |
| 1526 * | |
| 1527 * @return the receiver's justification | |
| 1528 * | |
| 1529 * @exception DWTException <ul> | |
| 1530 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1531 * </ul> | |
| 1532 * | |
| 1533 * @since 3.2 | |
| 1534 */ | |
| 1535 public bool getJustify () { | |
| 1536 checkLayout(); | |
| 1537 return justify; | |
| 1538 } | |
| 1539 | |
| 30 | 1540 HFONT getItemFont (StyleItem item) { |
| 1541 if (item.fallbackFont !is null) return cast(HFONT) item.fallbackFont; | |
| 29 | 1542 if (item.style !is null && item.style.font !is null) { |
| 1543 return item.style.font.handle; | |
| 1544 } | |
| 1545 if (this.font !is null) { | |
| 1546 return this.font.handle; | |
| 1547 } | |
| 213 | 1548 return device.systemFont.handle; |
| 29 | 1549 } |
| 1550 | |
| 1551 /** | |
| 1552 * Returns the embedding level for the specified character offset. The | |
| 1553 * embedding level is usually used to determine the directionality of a | |
| 1554 * character in bidirectional text. | |
| 1555 * | |
| 1556 * @param offset the character offset | |
| 1557 * @return the embedding level | |
| 1558 * | |
| 1559 * @exception IllegalArgumentException <ul> | |
| 1560 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1561 * </ul> | |
| 1562 * @exception DWTException <ul> | |
| 1563 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1564 */ | |
| 1565 public int getLevel (int offset) { | |
| 1566 checkLayout(); | |
| 1567 computeRuns(null); | |
| 227 | 1568 int length = text.length; |
| 1569 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1570 offset = translateOffset(offset); |
| 1571 for (int i=1; i<allRuns.length; i++) { | |
| 1572 if (allRuns[i].start > offset) { | |
| 1573 return allRuns[i - 1].analysis.s.uBidiLevel; | |
| 1574 } | |
| 1575 } | |
| 1576 return (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? 1 : 0; | |
| 1577 } | |
| 1578 | |
| 1579 /** | |
| 1580 * Returns the bounds of the line for the specified line index. | |
| 1581 * | |
| 1582 * @param lineIndex the line index | |
| 1583 * @return the line bounds | |
| 1584 * | |
| 1585 * @exception IllegalArgumentException <ul> | |
| 1586 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1587 * </ul> | |
| 1588 * @exception DWTException <ul> | |
| 1589 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1590 * </ul> | |
| 1591 */ | |
| 1592 public Rectangle getLineBounds(int lineIndex) { | |
| 1593 checkLayout(); | |
| 1594 computeRuns(null); | |
| 1595 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1596 int x = getLineIndent(lineIndex); | |
| 1597 int y = lineY[lineIndex]; | |
| 1598 int width = lineWidth[lineIndex]; | |
| 1599 int height = lineY[lineIndex + 1] - y - lineSpacing; | |
| 1600 return new Rectangle (x, y, width, height); | |
| 1601 } | |
| 1602 | |
| 1603 /** | |
| 1604 * Returns the receiver's line count. This includes lines caused | |
| 1605 * by wrapping. | |
| 1606 * | |
| 1607 * @return the line count | |
| 1608 * | |
| 1609 * @exception DWTException <ul> | |
| 1610 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1611 * </ul> | |
| 1612 */ | |
| 1613 public int getLineCount () { | |
| 1614 checkLayout(); | |
| 1615 computeRuns(null); | |
| 1616 return runs.length; | |
| 1617 } | |
| 1618 | |
| 1619 int getLineIndent (int lineIndex) { | |
| 1620 int lineIndent = 0; | |
| 1621 if (lineIndex is 0) { | |
| 1622 lineIndent = indent; | |
| 1623 } else { | |
| 1624 StyleItem[] previousLine = runs[lineIndex - 1]; | |
| 1625 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 1626 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 1627 lineIndent = indent; | |
| 1628 } | |
| 1629 } | |
| 1630 if (wrapWidth !is -1) { | |
| 1631 bool partialLine = true; | |
| 1632 if (justify) { | |
| 1633 StyleItem[] lineRun = runs[lineIndex]; | |
| 1634 if (lineRun[lineRun.length - 1].softBreak) { | |
| 1635 partialLine = false; | |
| 1636 } | |
| 1637 } | |
| 1638 if (partialLine) { | |
| 1639 int lineWidth = this.lineWidth[lineIndex] + lineIndent; | |
| 1640 switch (alignment) { | |
| 1641 case DWT.CENTER: lineIndent += (wrapWidth - lineWidth) / 2; break; | |
| 1642 case DWT.RIGHT: lineIndent += wrapWidth - lineWidth; break; | |
| 81 | 1643 default: |
| 29 | 1644 } |
| 1645 } | |
| 1646 } | |
| 1647 return lineIndent; | |
| 1648 } | |
| 1649 | |
| 1650 /** | |
| 1651 * Returns the index of the line that contains the specified | |
| 1652 * character offset. | |
| 1653 * | |
| 1654 * @param offset the character offset | |
| 1655 * @return the line index | |
| 1656 * | |
| 1657 * @exception IllegalArgumentException <ul> | |
| 1658 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1659 * </ul> | |
| 1660 * @exception DWTException <ul> | |
| 1661 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1662 * </ul> | |
| 1663 */ | |
| 1664 public int getLineIndex (int offset) { | |
| 1665 checkLayout(); | |
| 1666 computeRuns(null); | |
| 227 | 1667 int length = text.length; |
| 1668 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1669 offset = translateOffset(offset); |
| 1670 for (int line=0; line<runs.length; line++) { | |
| 1671 if (lineOffset[line + 1] > offset) { | |
| 1672 return line; | |
| 1673 } | |
| 1674 } | |
| 1675 return runs.length - 1; | |
| 1676 } | |
| 1677 | |
| 1678 /** | |
| 1679 * Returns the font metrics for the specified line index. | |
| 1680 * | |
| 1681 * @param lineIndex the line index | |
| 1682 * @return the font metrics | |
| 1683 * | |
| 1684 * @exception IllegalArgumentException <ul> | |
| 1685 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1686 * </ul> | |
| 1687 * @exception DWTException <ul> | |
| 1688 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1689 * </ul> | |
| 1690 */ | |
| 1691 public FontMetrics getLineMetrics (int lineIndex) { | |
| 1692 checkLayout(); | |
| 1693 computeRuns(null); | |
| 1694 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 30 | 1695 auto hDC = device.internal_new_GC(null); |
| 1696 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 1697 TEXTMETRIC lptm; |
| 213 | 1698 OS.SelectObject(srcHdc, font !is null ? font.handle : device.systemFont.handle); |
| 29 | 1699 OS.GetTextMetrics(srcHdc, &lptm); |
| 1700 OS.DeleteDC(srcHdc); | |
| 1701 device.internal_dispose_GC(hDC, null); | |
| 1702 | |
| 1703 int ascent = Math.max(lptm.tmAscent, this.ascent); | |
| 1704 int descent = Math.max(lptm.tmDescent, this.descent); | |
| 1705 int leading = lptm.tmInternalLeading; | |
| 30 | 1706 if (text.length !is 0) { |
| 29 | 1707 StyleItem[] lineRuns = runs[lineIndex]; |
| 1708 for (int i = 0; i<lineRuns.length; i++) { | |
| 1709 StyleItem run = lineRuns[i]; | |
| 1710 if (run.ascent > ascent) { | |
| 1711 ascent = run.ascent; | |
| 1712 leading = run.leading; | |
| 1713 } | |
| 1714 descent = Math.max(descent, run.descent); | |
| 1715 } | |
| 1716 } | |
| 1717 lptm.tmAscent = ascent; | |
| 1718 lptm.tmDescent = descent; | |
| 1719 lptm.tmHeight = ascent + descent; | |
| 1720 lptm.tmInternalLeading = leading; | |
| 1721 lptm.tmAveCharWidth = 0; | |
| 30 | 1722 return FontMetrics.win32_new(&lptm); |
| 29 | 1723 } |
| 1724 | |
| 1725 /** | |
| 1726 * Returns the line offsets. Each value in the array is the | |
| 1727 * offset for the first character in a line except for the last | |
| 1728 * value, which contains the length of the text. | |
| 1729 * | |
| 1730 * @return the line offsets | |
| 1731 * | |
| 1732 * @exception DWTException <ul> | |
| 1733 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1734 * </ul> | |
| 1735 */ | |
| 1736 public int[] getLineOffsets () { | |
| 1737 checkLayout(); | |
| 1738 computeRuns(null); | |
| 1739 int[] offsets = new int[lineOffset.length]; | |
| 1740 for (int i = 0; i < offsets.length; i++) { | |
| 1741 offsets[i] = untranslateOffset(lineOffset[i]); | |
| 1742 } | |
| 1743 return offsets; | |
| 1744 } | |
| 1745 | |
| 1746 /** | |
| 1747 * Returns the location for the specified character offset. The | |
| 1748 * <code>trailing</code> argument indicates whether the offset | |
| 1749 * corresponds to the leading or trailing edge of the cluster. | |
| 1750 * | |
| 1751 * @param offset the character offset | |
| 1752 * @param trailing the trailing flag | |
| 1753 * @return the location of the character offset | |
| 1754 * | |
| 1755 * @exception DWTException <ul> | |
| 1756 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1757 * </ul> | |
| 1758 * | |
| 1759 * @see #getOffset(Point, int[]) | |
| 1760 * @see #getOffset(int, int, int[]) | |
| 1761 */ | |
| 1762 public Point getLocation (int offset, bool trailing) { | |
| 1763 checkLayout(); | |
| 1764 computeRuns(null); | |
| 227 | 1765 int length = text.length; |
| 1766 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1767 length = segmentsText.length; | |
| 29 | 1768 offset = translateOffset(offset); |
| 1769 int line; | |
| 1770 for (line=0; line<runs.length; line++) { | |
| 1771 if (lineOffset[line + 1] > offset) break; | |
| 1772 } | |
| 1773 line = Math.min(line, runs.length - 1); | |
| 227 | 1774 if (offset is length) { |
| 213 | 1775 return new Point(getLineIndent(line) + lineWidth[line], lineY[line]); |
| 1776 } | |
| 1777 int low = -1; | |
| 1778 int high = allRuns.length; | |
| 1779 while (high - low > 1) { | |
| 1780 int index = ((high + low) / 2); | |
| 1781 StyleItem run = allRuns[index]; | |
| 1782 if (run.start > offset) { | |
| 1783 high = index; | |
| 1784 } else if (run.start + run.length <= offset) { | |
| 1785 low = index; | |
| 1786 } else { | |
| 1787 int width; | |
| 1788 if (run.style !is null && run.style.metrics !is null) { | |
| 1789 GlyphMetrics metrics = run.style.metrics; | |
| 1790 width = metrics.width * (offset - run.start + (trailing ? 1 : 0)); | |
| 1791 } else if (run.tab) { | |
| 227 | 1792 width = (trailing || (offset is length)) ? run.width : 0; |
| 213 | 1793 } else { |
| 1794 int runOffset = offset - run.start; | |
| 1795 int cChars = run.length; | |
| 1796 int gGlyphs = run.glyphCount; | |
| 1797 int piX; | |
| 1798 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1799 OS.ScriptCPtoX(runOffset, trailing, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1800 width = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 1801 } |
| 213 | 1802 return new Point(run.x + width, lineY[line]); |
| 29 | 1803 } |
| 1804 } | |
| 213 | 1805 return new Point(0, 0); |
| 29 | 1806 } |
| 1807 | |
| 1808 /** | |
| 1809 * Returns the next offset for the specified offset and movement | |
| 1810 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 1811 * <code>DWT.MOVEMENT_CLUSTER</code>, <code>DWT.MOVEMENT_WORD</code>, | |
| 1812 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 1813 * | |
| 1814 * @param offset the start offset | |
| 1815 * @param movement the movement type | |
| 1816 * @return the next offset | |
| 1817 * | |
| 1818 * @exception IllegalArgumentException <ul> | |
| 1819 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 1820 * </ul> | |
| 1821 * @exception DWTException <ul> | |
| 1822 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1823 * </ul> | |
| 1824 * | |
| 1825 * @see #getPreviousOffset(int, int) | |
| 1826 */ | |
| 1827 public int getNextOffset (int offset, int movement) { | |
| 1828 checkLayout(); | |
| 1829 return _getOffset (offset, movement, true); | |
| 1830 } | |
| 1831 | |
| 1832 int _getOffset(int offset, int movement, bool forward) { | |
| 1833 computeRuns(null); | |
| 227 | 1834 int length = text.length; |
| 1835 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1836 if (forward && offset is length) return length; | |
| 29 | 1837 if (!forward && offset is 0) return 0; |
| 1838 int step = forward ? 1 : -1; | |
| 1839 if ((movement & DWT.MOVEMENT_CHAR) !is 0) return offset + step; | |
| 227 | 1840 length = segmentsText.length; |
| 29 | 1841 offset = translateOffset(offset); |
| 227 | 1842 SCRIPT_LOGATTR* logAttr = new SCRIPT_LOGATTR(); |
| 1843 SCRIPT_PROPERTIES* properties = new SCRIPT_PROPERTIES(); | |
| 29 | 1844 int i = forward ? 0 : allRuns.length - 1; |
| 1845 offset = validadeOffset(offset, step); | |
| 1846 do { | |
| 1847 StyleItem run = allRuns[i]; | |
| 1848 if (run.start <= offset && offset < run.start + run.length) { | |
| 1849 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1850 if (run.tab) return untranslateOffset(run.start); | |
| 227 | 1851 OS.MoveMemory(properties, device.scripts[run.analysis.eScript], SCRIPT_PROPERTIES.sizeof); |
| 29 | 1852 bool isComplex = properties.fNeedsCaretInfo || properties.fNeedsWordBreaking; |
| 1853 if (isComplex) breakRun(run); | |
| 1854 while (run.start <= offset && offset < run.start + run.length) { | |
| 1855 if (isComplex) { | |
| 227 | 1856 OS.MoveMemory(logAttr, run.psla + (offset - run.start), SCRIPT_LOGATTR.sizeof); |
| 29 | 1857 } |
| 1858 switch (movement) { | |
| 1859 case DWT.MOVEMENT_CLUSTER: { | |
| 1860 if (properties.fNeedsCaretInfo) { | |
| 1861 if (!logAttr.fInvalid && logAttr.fCharStop) return untranslateOffset(offset); | |
| 1862 } else { | |
| 1863 return untranslateOffset(offset); | |
| 1864 } | |
| 1865 break; | |
| 1866 } | |
| 1867 case DWT.MOVEMENT_WORD_START: | |
| 1868 case DWT.MOVEMENT_WORD: { | |
| 1869 if (properties.fNeedsWordBreaking) { | |
| 1870 if (!logAttr.fInvalid && logAttr.fWordStop) return untranslateOffset(offset); | |
| 1871 } else { | |
| 1872 if (offset > 0) { | |
| 1873 bool letterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1874 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1875 if (letterOrDigit !is previousLetterOrDigit || !letterOrDigit) { | |
| 1876 if (!Compatibility.isWhitespace(segmentsText.charAt(offset))) { | |
| 1877 return untranslateOffset(offset); | |
| 1878 } | |
| 1879 } | |
| 1880 } | |
| 1881 } | |
| 1882 break; | |
| 1883 } | |
| 1884 case DWT.MOVEMENT_WORD_END: { | |
| 1885 if (offset > 0) { | |
| 1886 bool isLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1887 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1888 if (!isLetterOrDigit && previousLetterOrDigit) { | |
| 1889 return untranslateOffset(offset); | |
| 1890 } | |
| 1891 } | |
| 1892 break; | |
| 1893 } | |
| 81 | 1894 default: |
| 29 | 1895 } |
| 1896 offset = validadeOffset(offset, step); | |
| 1897 } | |
| 1898 } | |
| 1899 i += step; | |
| 227 | 1900 } while (0 <= i && i < allRuns.length - 1 && 0 <= offset && offset < length); |
| 30 | 1901 return forward ? text.length : 0; |
| 29 | 1902 } |
| 1903 | |
| 1904 /** | |
| 1905 * Returns the character offset for the specified point. | |
| 1906 * For a typical character, the trailing argument will be filled in to | |
| 1907 * indicate whether the point is closer to the leading edge (0) or | |
| 1908 * the trailing edge (1). When the point is over a cluster composed | |
| 1909 * of multiple characters, the trailing argument will be filled with the | |
| 1910 * position of the character in the cluster that is closest to | |
| 1911 * the point. | |
| 1912 * | |
| 1913 * @param point the point | |
| 1914 * @param trailing the trailing buffer | |
| 1915 * @return the character offset | |
| 1916 * | |
| 1917 * @exception IllegalArgumentException <ul> | |
| 1918 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1919 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> | |
| 1920 * </ul> | |
| 1921 * @exception DWTException <ul> | |
| 1922 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1923 * </ul> | |
| 1924 * | |
| 1925 * @see #getLocation(int, bool) | |
| 1926 */ | |
| 1927 public int getOffset (Point point, int[] trailing) { | |
| 1928 checkLayout(); | |
| 1929 if (point is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1930 return getOffset (point.x, point.y, trailing) ; | |
| 1931 } | |
| 1932 | |
| 1933 /** | |
| 1934 * Returns the character offset for the specified point. | |
| 1935 * For a typical character, the trailing argument will be filled in to | |
| 1936 * indicate whether the point is closer to the leading edge (0) or | |
| 1937 * the trailing edge (1). When the point is over a cluster composed | |
| 1938 * of multiple characters, the trailing argument will be filled with the | |
| 1939 * position of the character in the cluster that is closest to | |
| 1940 * the point. | |
| 1941 * | |
| 1942 * @param x the x coordinate of the point | |
| 1943 * @param y the y coordinate of the point | |
| 1944 * @param trailing the trailing buffer | |
| 1945 * @return the character offset | |
| 1946 * | |
| 1947 * @exception IllegalArgumentException <ul> | |
| 1948 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1949 * </ul> | |
| 1950 * @exception DWTException <ul> | |
| 1951 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1952 * </ul> | |
| 1953 * | |
| 1954 * @see #getLocation(int, bool) | |
| 1955 */ | |
| 1956 public int getOffset (int x, int y, int[] trailing) { | |
| 1957 checkLayout(); | |
| 1958 computeRuns(null); | |
| 1959 if (trailing !is null && trailing.length < 1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 1960 int line; | |
| 1961 int lineCount = runs.length; | |
| 1962 for (line=0; line<lineCount; line++) { | |
| 1963 if (lineY[line + 1] > y) break; | |
| 1964 } | |
| 1965 line = Math.min(line, runs.length - 1); | |
| 1966 StyleItem[] lineRuns = runs[line]; | |
| 213 | 1967 int lineIndent = getLineIndent(line); |
| 1968 if (x >= lineIndent + lineWidth[line]) x = lineIndent + lineWidth[line] - 1; | |
| 1969 if (x < lineIndent) x = lineIndent; | |
| 1970 int low = -1; | |
| 1971 int high = lineRuns.length; | |
| 1972 while (high - low > 1) { | |
| 1973 int index = ((high + low) / 2); | |
| 1974 StyleItem run = lineRuns[index]; | |
| 1975 if (run.x > x) { | |
| 1976 high = index; | |
| 1977 } else if (run.x + run.width <= x) { | |
| 1978 low = index; | |
| 1979 } else { | |
| 1980 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1981 int xRun = x - run.x; | |
| 29 | 1982 if (run.style !is null && run.style.metrics !is null) { |
| 1983 GlyphMetrics metrics = run.style.metrics; | |
| 1984 if (metrics.width > 0) { | |
| 1985 if (trailing !is null) { | |
| 1986 trailing[0] = (xRun % metrics.width < metrics.width / 2) ? 0 : 1; | |
| 1987 } | |
| 1988 return untranslateOffset(run.start + xRun / metrics.width); | |
| 1989 } | |
| 1990 } | |
| 1991 if (run.tab) { | |
| 213 | 1992 if (trailing !is null) trailing[0] = x < (run.x + run.width / 2) ? 0 : 1; |
| 29 | 1993 return untranslateOffset(run.start); |
| 1994 } | |
| 1995 int cChars = run.length; | |
| 1996 int cGlyphs = run.glyphCount; | |
| 30 | 1997 int piCP; |
| 1998 int piTrailing; | |
| 29 | 1999 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { |
| 2000 xRun = run.width - xRun; | |
| 2001 } | |
| 30 | 2002 int* advances = run.justify !is null ? run.justify : run.advances; |
| 2003 OS.ScriptXtoCP(xRun, cChars, cGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piCP, &piTrailing); | |
| 2004 if (trailing !is null) trailing[0] = piTrailing; | |
| 2005 return untranslateOffset(run.start + piCP); | |
| 29 | 2006 } |
| 2007 } | |
| 2008 if (trailing !is null) trailing[0] = 0; | |
| 2009 return untranslateOffset(lineOffset[line + 1]); | |
| 2010 } | |
| 2011 | |
| 2012 /** | |
| 2013 * Returns the orientation of the receiver. | |
| 2014 * | |
| 2015 * @return the orientation style | |
| 2016 * | |
| 2017 * @exception DWTException <ul> | |
| 2018 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2019 * </ul> | |
| 2020 */ | |
| 2021 public int getOrientation () { | |
| 2022 checkLayout(); | |
| 2023 return orientation; | |
| 2024 } | |
| 2025 | |
| 2026 /** | |
| 2027 * Returns the previous offset for the specified offset and movement | |
| 2028 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 2029 * <code>DWT.MOVEMENT_CLUSTER</code> or <code>DWT.MOVEMENT_WORD</code>, | |
| 2030 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 2031 * | |
| 2032 * @param offset the start offset | |
| 2033 * @param movement the movement type | |
| 2034 * @return the previous offset | |
| 2035 * | |
| 2036 * @exception IllegalArgumentException <ul> | |
| 2037 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 2038 * </ul> | |
| 2039 * @exception DWTException <ul> | |
| 2040 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2041 * </ul> | |
| 2042 * | |
| 2043 * @see #getNextOffset(int, int) | |
| 2044 */ | |
| 2045 public int getPreviousOffset (int offset, int movement) { | |
| 2046 checkLayout(); | |
| 2047 return _getOffset (offset, movement, false); | |
| 2048 } | |
| 2049 | |
| 2050 /** | |
| 2051 * Gets the ranges of text that are associated with a <code>TextStyle</code>. | |
| 2052 * | |
| 2053 * @return the ranges, an array of offsets representing the start and end of each | |
| 2054 * text style. | |
| 2055 * | |
| 2056 * @exception DWTException <ul> | |
| 2057 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2058 * </ul> | |
| 2059 * | |
| 2060 * @see #getStyles() | |
| 2061 * | |
| 2062 * @since 3.2 | |
| 2063 */ | |
| 2064 public int[] getRanges () { | |
| 2065 checkLayout(); | |
| 213 | 2066 int[] result = new int[stylesCount * 2]; |
| 29 | 2067 int count = 0; |
| 213 | 2068 for (int i=0; i<stylesCount - 1; i++) { |
| 29 | 2069 if (styles[i].style !is null) { |
| 2070 result[count++] = styles[i].start; | |
| 2071 result[count++] = styles[i + 1].start - 1; | |
| 2072 } | |
| 2073 } | |
| 2074 if (count !is result.length) { | |
| 2075 int[] newResult = new int[count]; | |
| 2076 System.arraycopy(result, 0, newResult, 0, count); | |
| 2077 result = newResult; | |
| 2078 } | |
| 2079 return result; | |
| 2080 } | |
| 2081 | |
| 2082 /** | |
| 2083 * Returns the text segments offsets of the receiver. | |
| 2084 * | |
| 2085 * @return the text segments offsets | |
| 2086 * | |
| 2087 * @exception DWTException <ul> | |
| 2088 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2089 * </ul> | |
| 2090 */ | |
| 2091 public int[] getSegments () { | |
| 2092 checkLayout(); | |
| 2093 return segments; | |
| 2094 } | |
| 2095 | |
|
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parents:
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diff
changeset
|
2096 String getSegmentsText() { |
| 29 | 2097 if (segments is null) return text; |
| 2098 int nSegments = segments.length; | |
| 2099 if (nSegments <= 1) return text; | |
| 213 | 2100 int length_ = text.length; |
| 2101 if (length_ is 0) return text; | |
| 29 | 2102 if (nSegments is 2) { |
| 213 | 2103 if (segments[0] is 0 && segments[1] is length_) return text; |
| 29 | 2104 } |
| 213 | 2105 char[] oldChars = new char[length_]; |
| 2106 text.getChars(0, length_, oldChars, 0); | |
| 2107 char[] newChars = new char[length_ + nSegments]; | |
| 29 | 2108 int charCount = 0, segmentCount = 0; |
| 30 | 2109 wchar separator = orientation is DWT.RIGHT_TO_LEFT ? RTL_MARK : LTR_MARK; |
| 213 | 2110 while (charCount < length_) { |
| 29 | 2111 if (segmentCount < nSegments && charCount is segments[segmentCount]) { |
| 2112 newChars[charCount + segmentCount++] = separator; | |
| 2113 } else { | |
| 2114 newChars[charCount + segmentCount] = oldChars[charCount++]; | |
| 2115 } | |
| 2116 } | |
| 2117 if (segmentCount < nSegments) { | |
| 2118 segments[segmentCount] = charCount; | |
| 2119 newChars[charCount + segmentCount++] = separator; | |
| 2120 } | |
| 30 | 2121 return newChars[ 0 .. Math.min(charCount + segmentCount, newChars.length)].dup; |
| 29 | 2122 } |
| 2123 | |
| 2124 /** | |
| 2125 * Returns the line spacing of the receiver. | |
| 2126 * | |
| 2127 * @return the line spacing | |
| 2128 * | |
| 2129 * @exception DWTException <ul> | |
| 2130 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2131 * </ul> | |
| 2132 */ | |
| 2133 public int getSpacing () { | |
| 2134 checkLayout(); | |
| 2135 return lineSpacing; | |
| 2136 } | |
| 2137 | |
| 2138 /** | |
| 2139 * Gets the style of the receiver at the specified character offset. | |
| 2140 * | |
| 2141 * @param offset the text offset | |
| 2142 * @return the style or <code>null</code> if not set | |
| 2143 * | |
| 2144 * @exception IllegalArgumentException <ul> | |
| 2145 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 2146 * </ul> | |
| 2147 * @exception DWTException <ul> | |
| 2148 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2149 * </ul> | |
| 2150 */ | |
| 2151 public TextStyle getStyle (int offset) { | |
| 2152 checkLayout(); | |
| 227 | 2153 int length = text.length; |
| 2154 if (!(0 <= offset && offset < length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 213 | 2155 for (int i=1; i<stylesCount; i++) { |
| 29 | 2156 if (styles[i].start > offset) { |
| 2157 return styles[i - 1].style; | |
| 2158 } | |
| 2159 } | |
| 2160 return null; | |
| 2161 } | |
| 2162 | |
| 2163 /** | |
| 2164 * Gets all styles of the receiver. | |
| 2165 * | |
| 2166 * @return the styles | |
| 2167 * | |
| 2168 * @exception DWTException <ul> | |
| 2169 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2170 * </ul> | |
| 2171 * | |
| 2172 * @see #getRanges() | |
| 2173 * | |
| 2174 * @since 3.2 | |
| 2175 */ | |
| 2176 public TextStyle[] getStyles () { | |
| 2177 checkLayout(); | |
| 213 | 2178 TextStyle[] result = new TextStyle[stylesCount]; |
| 29 | 2179 int count = 0; |
| 213 | 2180 for (int i=0; i<stylesCount; i++) { |
| 29 | 2181 if (styles[i].style !is null) { |
| 2182 result[count++] = styles[i].style; | |
| 2183 } | |
| 2184 } | |
| 2185 if (count !is result.length) { | |
| 2186 TextStyle[] newResult = new TextStyle[count]; | |
| 2187 System.arraycopy(result, 0, newResult, 0, count); | |
| 2188 result = newResult; | |
| 2189 } | |
| 2190 return result; | |
| 2191 } | |
| 2192 | |
| 2193 /** | |
| 2194 * Returns the tab list of the receiver. | |
| 2195 * | |
| 2196 * @return the tab list | |
| 2197 * | |
| 2198 * @exception DWTException <ul> | |
| 2199 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2200 * </ul> | |
| 2201 */ | |
| 2202 public int[] getTabs () { | |
| 2203 checkLayout(); | |
| 2204 return tabs; | |
| 2205 } | |
| 2206 | |
| 2207 /** | |
| 2208 * Gets the receiver's text, which will be an empty | |
| 2209 * string if it has never been set. | |
| 2210 * | |
| 2211 * @return the receiver's text | |
| 2212 * | |
| 2213 * @exception DWTException <ul> | |
| 2214 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2215 * </ul> | |
| 2216 */ | |
|
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Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
2217 public String getText () { |
| 29 | 2218 checkLayout(); |
| 2219 return text; | |
| 2220 } | |
| 2221 | |
| 2222 /** | |
| 2223 * Returns the width of the receiver. | |
| 2224 * | |
| 2225 * @return the width | |
| 2226 * | |
| 2227 * @exception DWTException <ul> | |
| 2228 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2229 * </ul> | |
| 2230 */ | |
| 2231 public int getWidth () { | |
| 2232 checkLayout(); | |
| 2233 return wrapWidth; | |
| 2234 } | |
| 2235 | |
| 2236 /** | |
| 2237 * Returns <code>true</code> if the text layout has been disposed, | |
| 2238 * and <code>false</code> otherwise. | |
| 2239 * <p> | |
| 2240 * This method gets the dispose state for the text layout. | |
| 2241 * When a text layout has been disposed, it is an error to | |
| 2242 * invoke any other method using the text layout. | |
| 2243 * </p> | |
| 2244 * | |
| 2245 * @return <code>true</code> when the text layout is disposed and <code>false</code> otherwise | |
| 2246 */ | |
|
48
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Frank Benoit <benoit@tionex.de>
parents:
31
diff
changeset
|
2247 override public bool isDisposed () { |
| 29 | 2248 return device is null; |
| 2249 } | |
| 2250 | |
| 2251 /* | |
| 2252 * Itemize the receiver text | |
| 2253 */ | |
| 2254 StyleItem[] itemize () { | |
| 2255 segmentsText = getSegmentsText(); | |
| 227 | 2256 int length = segmentsText.length; |
| 30 | 2257 SCRIPT_CONTROL scriptControl; |
| 2258 SCRIPT_STATE scriptState; | |
| 227 | 2259 final int MAX_ITEM = length + 1; |
| 29 | 2260 |
| 2261 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 2262 scriptState.uBidiLevel = 1; | |
| 2263 scriptState.fArabicNumContext = true; | |
| 30 | 2264 SCRIPT_DIGITSUBSTITUTE psds; |
| 2265 OS.ScriptRecordDigitSubstitution(OS.LOCALE_USER_DEFAULT, &psds); | |
| 2266 OS.ScriptApplyDigitSubstitution(&psds, &scriptControl, &scriptState); | |
| 29 | 2267 } |
| 2268 | |
| 30 | 2269 auto hHeap = OS.GetProcessHeap(); |
| 2270 auto pItems = cast(SCRIPT_ITEM*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, MAX_ITEM * SCRIPT_ITEM.sizeof); | |
| 2271 if (pItems is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2272 int pcItems; | |
| 2273 wchar[] chars = StrToWCHARs( segmentsText ); | |
| 2274 OS.ScriptItemize(chars.ptr, chars.length, MAX_ITEM, &scriptControl, &scriptState, pItems, &pcItems); | |
| 29 | 2275 // if (hr is E_OUTOFMEMORY) //TODO handle it |
| 2276 | |
| 229 | 2277 // Translate the utf16 indices to utf8 indices |
| 2278 int utf8idx = 0; | |
| 2279 SCRIPT_ITEM* si = pItems; | |
| 2280 foreach( uint utf16idx, char c; chars ){ | |
| 2281 if( si.iCharPos is utf16idx ){ | |
| 2282 si.iCharPos = utf8idx; | |
| 2283 si++; | |
| 2284 } | |
| 2285 utf8idx++; | |
| 2286 } | |
| 2287 | |
| 30 | 2288 StyleItem[] runs = merge(pItems, pcItems); |
| 29 | 2289 OS.HeapFree(hHeap, 0, pItems); |
| 2290 return runs; | |
| 2291 } | |
| 2292 | |
| 2293 /* | |
| 2294 * Merge styles ranges and script items | |
| 2295 */ | |
| 30 | 2296 StyleItem[] merge (SCRIPT_ITEM* items, int itemCount) { |
| 213 | 2297 if (styles.length > stylesCount) { |
| 2298 StyleItem[] newStyles = new StyleItem[stylesCount]; | |
| 2299 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2300 styles = newStyles; | |
| 2301 } | |
| 30 | 2302 int count = 0, start = 0, end = segmentsText.length, itemIndex = 0, styleIndex = 0; |
| 213 | 2303 StyleItem[] runs = new StyleItem[itemCount + stylesCount]; |
| 2304 SCRIPT_ITEM* scriptItem = new SCRIPT_ITEM(); | |
| 29 | 2305 bool linkBefore = false; |
| 2306 while (start < end) { | |
| 2307 StyleItem item = new StyleItem(); | |
| 2308 item.start = start; | |
| 2309 item.style = styles[styleIndex].style; | |
| 2310 runs[count++] = item; | |
| 227 | 2311 OS.MoveMemory(scriptItem, (cast(void*)items) + itemIndex * SCRIPT_ITEM.sizeof, SCRIPT_ITEM.sizeof); |
| 29 | 2312 item.analysis = scriptItem.a; |
| 2313 if (linkBefore) { | |
| 2314 item.analysis.fLinkBefore = true; | |
| 2315 linkBefore = false; | |
| 2316 } | |
| 30 | 2317 //scriptItem.a = new SCRIPT_ANALYSIS(); |
| 227 | 2318 OS.MoveMemory(scriptItem, (cast(void*)items) + (itemIndex + 1) * SCRIPT_ITEM.sizeof, SCRIPT_ITEM.sizeof); |
| 29 | 2319 int itemLimit = scriptItem.iCharPos; |
| 2320 int styleLimit = translateOffset(styles[styleIndex + 1].start); | |
| 2321 if (styleLimit <= itemLimit) { | |
| 2322 styleIndex++; | |
| 2323 start = styleLimit; | |
| 2324 if (start < itemLimit && 0 < start && start < end) { | |
| 2325 char pChar = segmentsText.charAt(start - 1); | |
| 2326 char tChar = segmentsText.charAt(start); | |
| 213 | 2327 if (Compatibility.isLetter(pChar) && Compatibility.isLetter(tChar)) { |
| 29 | 2328 item.analysis.fLinkAfter = true; |
| 2329 linkBefore = true; | |
| 2330 } | |
| 2331 } | |
| 2332 } | |
| 2333 if (itemLimit <= styleLimit) { | |
| 2334 itemIndex++; | |
| 2335 start = itemLimit; | |
| 2336 } | |
| 2337 item.length = start - item.start; | |
| 2338 } | |
| 2339 StyleItem item = new StyleItem(); | |
| 2340 item.start = end; | |
| 227 | 2341 OS.MoveMemory(scriptItem, (cast(void*)items) + itemCount * SCRIPT_ITEM.sizeof, SCRIPT_ITEM.sizeof); |
| 29 | 2342 item.analysis = scriptItem.a; |
| 2343 runs[count++] = item; | |
| 2344 if (runs.length !is count) { | |
| 2345 StyleItem[] result = new StyleItem[count]; | |
| 2346 System.arraycopy(runs, 0, result, 0, count); | |
| 2347 return result; | |
| 2348 } | |
| 2349 return runs; | |
| 2350 } | |
| 2351 | |
| 2352 /* | |
| 2353 * Reorder the run | |
| 2354 */ | |
| 2355 StyleItem[] reorder (StyleItem[] runs, bool terminate) { | |
| 30 | 2356 int length_ = runs.length; |
| 2357 if (length_ <= 1) return runs; | |
| 2358 ubyte[] bidiLevels = new ubyte[length_]; | |
| 2359 for (int i=0; i<length_; i++) { | |
| 29 | 2360 bidiLevels[i] = cast(byte)(runs[i].analysis.s.uBidiLevel & 0x1F); |
| 2361 } | |
| 2362 /* | |
| 2363 * Feature in Windows. If the orientation is RTL Uniscribe will | |
| 2364 * resolve the level of line breaks to 1, this can cause the line | |
| 2365 * break to be reorder to the middle of the line. The fix is to set | |
| 2366 * the level to zero to prevent it to be reordered. | |
| 2367 */ | |
| 30 | 2368 StyleItem lastRun = runs[length_ - 1]; |
| 29 | 2369 if (lastRun.lineBreak && !lastRun.softBreak) { |
| 30 | 2370 bidiLevels[length_ - 1] = 0; |
| 29 | 2371 } |
| 30 | 2372 int[] log2vis = new int[length_]; |
| 2373 OS.ScriptLayout(length_, bidiLevels.ptr, null, log2vis.ptr); | |
| 2374 StyleItem[] result = new StyleItem[length_]; | |
| 2375 for (int i=0; i<length_; i++) { | |
| 29 | 2376 result[log2vis[i]] = runs[i]; |
| 2377 } | |
| 2378 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 30 | 2379 if (terminate) length_--; |
| 2380 for (int i = 0; i < length_ / 2 ; i++) { | |
| 29 | 2381 StyleItem tmp = result[i]; |
| 30 | 2382 result[i] = result[length_ - i - 1]; |
| 2383 result[length_ - i - 1] = tmp; | |
| 29 | 2384 } |
| 2385 } | |
| 2386 return result; | |
| 2387 } | |
| 2388 | |
| 2389 /** | |
| 2390 * Sets the text alignment for the receiver. The alignment controls | |
| 2391 * how a line of text is positioned horizontally. The argument should | |
| 2392 * be one of <code>DWT.LEFT</code>, <code>DWT.RIGHT</code> or <code>DWT.CENTER</code>. | |
| 2393 * <p> | |
| 2394 * The default alignment is <code>DWT.LEFT</code>. Note that the receiver's | |
| 2395 * width must be set in order to use <code>DWT.RIGHT</code> or <code>DWT.CENTER</code> | |
| 2396 * alignment. | |
| 2397 * </p> | |
| 2398 * | |
| 2399 * @param alignment the new alignment | |
| 2400 * | |
| 2401 * @exception DWTException <ul> | |
| 2402 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2403 * </ul> | |
| 2404 * | |
| 2405 * @see #setWidth(int) | |
| 2406 */ | |
| 2407 public void setAlignment (int alignment) { | |
| 2408 checkLayout(); | |
| 2409 int mask = DWT.LEFT | DWT.CENTER | DWT.RIGHT; | |
| 2410 alignment &= mask; | |
| 2411 if (alignment is 0) return; | |
| 2412 if ((alignment & DWT.LEFT) !is 0) alignment = DWT.LEFT; | |
| 2413 if ((alignment & DWT.RIGHT) !is 0) alignment = DWT.RIGHT; | |
| 2414 if (this.alignment is alignment) return; | |
| 2415 freeRuns(); | |
| 2416 this.alignment = alignment; | |
| 2417 } | |
| 2418 | |
| 2419 /** | |
| 2420 * Sets the ascent of the receiver. The ascent is distance in pixels | |
| 2421 * from the baseline to the top of the line and it is applied to all | |
| 2422 * lines. The default value is <code>-1</code> which means that the | |
| 2423 * ascent is calculated from the line fonts. | |
| 2424 * | |
| 2425 * @param ascent the new ascent | |
| 2426 * | |
| 2427 * @exception IllegalArgumentException <ul> | |
| 2428 * <li>ERROR_INVALID_ARGUMENT - if the ascent is less than <code>-1</code></li> | |
| 2429 * </ul> | |
| 2430 * @exception DWTException <ul> | |
| 2431 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2432 * </ul> | |
| 2433 * | |
| 2434 * @see #setDescent(int) | |
| 2435 * @see #getLineMetrics(int) | |
| 2436 */ | |
| 2437 public void setAscent(int ascent) { | |
| 2438 checkLayout(); | |
| 2439 if (ascent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2440 if (this.ascent is ascent) return; | |
| 2441 freeRuns(); | |
| 2442 this.ascent = ascent; | |
| 2443 } | |
| 2444 | |
| 2445 /** | |
| 2446 * Sets the descent of the receiver. The descent is distance in pixels | |
| 2447 * from the baseline to the bottom of the line and it is applied to all | |
| 2448 * lines. The default value is <code>-1</code> which means that the | |
| 2449 * descent is calculated from the line fonts. | |
| 2450 * | |
| 2451 * @param descent the new descent | |
| 2452 * | |
| 2453 * @exception IllegalArgumentException <ul> | |
| 2454 * <li>ERROR_INVALID_ARGUMENT - if the descent is less than <code>-1</code></li> | |
| 2455 * </ul> | |
| 2456 * @exception DWTException <ul> | |
| 2457 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2458 * </ul> | |
| 2459 * | |
| 2460 * @see #setAscent(int) | |
| 2461 * @see #getLineMetrics(int) | |
| 2462 */ | |
| 2463 public void setDescent(int descent) { | |
| 2464 checkLayout(); | |
| 2465 if (descent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2466 if (this.descent is descent) return; | |
| 2467 freeRuns(); | |
| 2468 this.descent = descent; | |
| 2469 } | |
| 2470 | |
| 2471 /** | |
| 2472 * Sets the default font which will be used by the receiver | |
| 2473 * to draw and measure text. If the | |
| 2474 * argument is null, then a default font appropriate | |
| 2475 * for the platform will be used instead. Note that a text | |
| 2476 * style can override the default font. | |
| 2477 * | |
| 2478 * @param font the new font for the receiver, or null to indicate a default font | |
| 2479 * | |
| 2480 * @exception IllegalArgumentException <ul> | |
| 2481 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> | |
| 2482 * </ul> | |
| 2483 * @exception DWTException <ul> | |
| 2484 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2485 * </ul> | |
| 2486 */ | |
| 2487 public void setFont (Font font) { | |
| 2488 checkLayout(); | |
| 2489 if (font !is null && font.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 213 | 2490 Font oldFont = this.font; |
| 2491 if (oldFont is font) return; | |
| 2492 this.font = font; | |
| 2493 if (oldFont !is null && oldFont.opEquals(font)) return; | |
| 29 | 2494 freeRuns(); |
| 2495 } | |
| 2496 | |
| 2497 /** | |
| 2498 * Sets the indent of the receiver. This indent it applied of the first line of | |
| 2499 * each paragraph. | |
| 2500 * | |
| 2501 * @param indent new indent | |
| 2502 * | |
| 2503 * @exception DWTException <ul> | |
| 2504 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2505 * </ul> | |
| 2506 * | |
| 2507 * @since 3.2 | |
| 2508 */ | |
| 2509 public void setIndent (int indent) { | |
| 2510 checkLayout(); | |
| 2511 if (indent < 0) return; | |
| 2512 if (this.indent is indent) return; | |
| 2513 freeRuns(); | |
| 2514 this.indent = indent; | |
| 2515 } | |
| 2516 | |
| 2517 /** | |
| 2518 * Sets the justification of the receiver. Note that the receiver's | |
| 2519 * width must be set in order to use justification. | |
| 2520 * | |
| 2521 * @param justify new justify | |
| 2522 * | |
| 2523 * @exception DWTException <ul> | |
| 2524 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2525 * </ul> | |
| 2526 * | |
| 2527 * @since 3.2 | |
| 2528 */ | |
| 2529 public void setJustify (bool justify) { | |
| 2530 checkLayout(); | |
| 2531 if (this.justify is justify) return; | |
| 2532 freeRuns(); | |
| 2533 this.justify = justify; | |
| 2534 } | |
| 2535 | |
| 2536 /** | |
| 2537 * Sets the orientation of the receiver, which must be one | |
| 2538 * of <code>DWT.LEFT_TO_RIGHT</code> or <code>DWT.RIGHT_TO_LEFT</code>. | |
| 2539 * | |
| 2540 * @param orientation new orientation style | |
| 2541 * | |
| 2542 * @exception DWTException <ul> | |
| 2543 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2544 * </ul> | |
| 2545 */ | |
| 2546 public void setOrientation (int orientation) { | |
| 2547 checkLayout(); | |
| 2548 int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; | |
| 2549 orientation &= mask; | |
| 2550 if (orientation is 0) return; | |
| 2551 if ((orientation & DWT.LEFT_TO_RIGHT) !is 0) orientation = DWT.LEFT_TO_RIGHT; | |
| 2552 if (this.orientation is orientation) return; | |
| 2553 this.orientation = orientation; | |
| 2554 freeRuns(); | |
| 2555 } | |
| 2556 | |
| 2557 /** | |
| 2558 * Sets the offsets of the receiver's text segments. Text segments are used to | |
| 2559 * override the default behaviour of the bidirectional algorithm. | |
| 2560 * Bidirectional reordering can happen within a text segment but not | |
| 2561 * between two adjacent segments. | |
| 2562 * <p> | |
| 2563 * Each text segment is determined by two consecutive offsets in the | |
| 2564 * <code>segments</code> arrays. The first element of the array should | |
| 2565 * always be zero and the last one should always be equals to length of | |
| 2566 * the text. | |
| 2567 * </p> | |
| 2568 * | |
| 2569 * @param segments the text segments offset | |
| 2570 * | |
| 2571 * @exception DWTException <ul> | |
| 2572 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2573 * </ul> | |
| 2574 */ | |
| 2575 public void setSegments(int[] segments) { | |
| 2576 checkLayout(); | |
| 2577 if (this.segments is null && segments is null) return; | |
| 2578 if (this.segments !is null && segments !is null) { | |
| 2579 if (this.segments.length is segments.length) { | |
| 2580 int i; | |
| 2581 for (i = 0; i <segments.length; i++) { | |
| 2582 if (this.segments[i] !is segments[i]) break; | |
| 2583 } | |
| 2584 if (i is segments.length) return; | |
| 2585 } | |
| 2586 } | |
| 2587 freeRuns(); | |
| 2588 this.segments = segments; | |
| 2589 } | |
| 2590 | |
| 2591 /** | |
| 2592 * Sets the line spacing of the receiver. The line spacing | |
| 2593 * is the space left between lines. | |
| 2594 * | |
| 2595 * @param spacing the new line spacing | |
| 2596 * | |
| 2597 * @exception IllegalArgumentException <ul> | |
| 2598 * <li>ERROR_INVALID_ARGUMENT - if the spacing is negative</li> | |
| 2599 * </ul> | |
| 2600 * @exception DWTException <ul> | |
| 2601 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2602 * </ul> | |
| 2603 */ | |
| 2604 public void setSpacing (int spacing) { | |
| 2605 checkLayout(); | |
| 2606 if (spacing < 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2607 if (this.lineSpacing is spacing) return; | |
| 2608 freeRuns(); | |
| 2609 this.lineSpacing = spacing; | |
| 2610 } | |
| 2611 | |
| 2612 /** | |
| 2613 * Sets the style of the receiver for the specified range. Styles previously | |
| 2614 * set for that range will be overwritten. The start and end offsets are | |
| 2615 * inclusive and will be clamped if out of range. | |
| 2616 * | |
| 2617 * @param style the style | |
| 2618 * @param start the start offset | |
| 2619 * @param end the end offset | |
| 2620 * | |
| 2621 * @exception DWTException <ul> | |
| 2622 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2623 * </ul> | |
| 2624 */ | |
| 2625 public void setStyle (TextStyle style, int start, int end) { | |
| 2626 checkLayout(); | |
| 227 | 2627 int length = text.length; |
| 2628 if (length is 0) return; | |
| 29 | 2629 if (start > end) return; |
| 227 | 2630 start = Math.min(Math.max(0, start), length - 1); |
| 2631 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 2632 int low = -1; |
| 213 | 2633 int high = stylesCount; |
| 29 | 2634 while (high - low > 1) { |
| 2635 int index = (high + low) / 2; | |
| 2636 if (styles[index + 1].start > start) { | |
| 2637 high = index; | |
| 2638 } else { | |
| 2639 low = index; | |
| 2640 } | |
| 2641 } | |
| 213 | 2642 if (0 <= high && high < stylesCount) { |
| 29 | 2643 StyleItem item = styles[high]; |
| 2644 if (item.start is start && styles[high + 1].start - 1 is end) { | |
| 2645 if (style is null) { | |
| 2646 if (item.style is null) return; | |
| 2647 } else { | |
| 227 | 2648 if (style.opEquals(item.style)) return; |
| 29 | 2649 } |
| 2650 } | |
| 2651 } | |
| 2652 freeRuns(); | |
| 2653 int modifyStart = high; | |
| 2654 int modifyEnd = modifyStart; | |
| 213 | 2655 while (modifyEnd < stylesCount) { |
| 29 | 2656 if (styles[modifyEnd + 1].start > end) break; |
| 2657 modifyEnd++; | |
| 2658 } | |
| 2659 if (modifyStart is modifyEnd) { | |
| 2660 int styleStart = styles[modifyStart].start; | |
| 2661 int styleEnd = styles[modifyEnd + 1].start - 1; | |
| 2662 if (styleStart is start && styleEnd is end) { | |
| 2663 styles[modifyStart].style = style; | |
| 2664 return; | |
| 2665 } | |
| 2666 if (styleStart !is start && styleEnd !is end) { | |
| 213 | 2667 int newLength = stylesCount + 2; |
| 2668 if (newLength > styles.length) { | |
| 2669 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2670 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2671 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2672 styles = newStyles; | |
| 2673 } | |
| 2674 System.arraycopy(styles, modifyEnd + 1, styles, modifyEnd + 3, stylesCount - modifyEnd - 1); | |
| 29 | 2675 StyleItem item = new StyleItem(); |
| 2676 item.start = start; | |
| 2677 item.style = style; | |
| 213 | 2678 styles[modifyStart + 1] = item; |
| 29 | 2679 item = new StyleItem(); |
| 2680 item.start = end + 1; | |
| 2681 item.style = styles[modifyStart].style; | |
| 213 | 2682 styles[modifyStart + 2] = item; |
| 2683 stylesCount = newLength; | |
| 29 | 2684 return; |
| 2685 } | |
| 2686 } | |
| 2687 if (start is styles[modifyStart].start) modifyStart--; | |
| 2688 if (end is styles[modifyEnd + 1].start - 1) modifyEnd++; | |
| 213 | 2689 int newLength = stylesCount + 1 - (modifyEnd - modifyStart - 1); |
| 2690 if (newLength > styles.length) { | |
| 2691 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2692 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2693 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2694 styles = newStyles; | |
| 2695 } | |
| 2696 System.arraycopy(styles, modifyEnd, styles, modifyStart + 2, stylesCount - modifyEnd); | |
| 29 | 2697 StyleItem item = new StyleItem(); |
| 2698 item.start = start; | |
| 2699 item.style = style; | |
| 213 | 2700 styles[modifyStart + 1] = item; |
| 2701 styles[modifyStart + 2].start = end + 1; | |
| 2702 stylesCount = newLength; | |
| 29 | 2703 } |
| 2704 | |
| 2705 /** | |
| 2706 * Sets the receiver's tab list. Each value in the tab list specifies | |
| 2707 * the space in pixels from the origin of the text layout to the respective | |
| 2708 * tab stop. The last tab stop width is repeated continuously. | |
| 2709 * | |
| 2710 * @param tabs the new tab list | |
| 2711 * | |
| 2712 * @exception DWTException <ul> | |
| 2713 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2714 * </ul> | |
| 2715 */ | |
| 2716 public void setTabs (int[] tabs) { | |
| 2717 checkLayout(); | |
| 2718 if (this.tabs is null && tabs is null) return; | |
| 2719 if (this.tabs !is null && tabs !is null) { | |
| 2720 if (this.tabs.length is tabs.length) { | |
| 2721 int i; | |
| 2722 for (i = 0; i <tabs.length; i++) { | |
| 2723 if (this.tabs[i] !is tabs[i]) break; | |
| 2724 } | |
| 2725 if (i is tabs.length) return; | |
| 2726 } | |
| 2727 } | |
| 2728 freeRuns(); | |
| 2729 this.tabs = tabs; | |
| 2730 } | |
| 2731 | |
| 2732 /** | |
| 2733 * Sets the receiver's text. | |
| 2734 * | |
| 2735 * @param text the new text | |
| 2736 * | |
| 2737 * @exception IllegalArgumentException <ul> | |
| 2738 * <li>ERROR_NULL_ARGUMENT - if the text is null</li> | |
| 2739 * </ul> | |
| 2740 * @exception DWTException <ul> | |
| 2741 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2742 * </ul> | |
| 2743 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
2744 public void setText (String text) { |
| 29 | 2745 checkLayout(); |
| 229 | 2746 |
|
157
f8001bf383d2
TextLayout allow null for setText
Frank Benoit <benoit@tionex.de>
parents:
81
diff
changeset
|
2747 //PORTING_CHANGE: allow null argument |
|
f8001bf383d2
TextLayout allow null for setText
Frank Benoit <benoit@tionex.de>
parents:
81
diff
changeset
|
2748 //if (text is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
| 227 | 2749 if (text.equals(this.text)) return; |
| 29 | 2750 freeRuns(); |
| 2751 this.text = text; | |
| 2752 styles = new StyleItem[2]; | |
| 2753 styles[0] = new StyleItem(); | |
| 2754 styles[1] = new StyleItem(); | |
| 30 | 2755 styles[1].start = text.length; |
| 213 | 2756 stylesCount = 2; |
| 29 | 2757 } |
| 2758 | |
| 2759 /** | |
| 2760 * Sets the line width of the receiver, which determines how | |
| 2761 * text should be wrapped and aligned. The default value is | |
| 2762 * <code>-1</code> which means wrapping is disabled. | |
| 2763 * | |
| 2764 * @param width the new width | |
| 2765 * | |
| 2766 * @exception IllegalArgumentException <ul> | |
| 2767 * <li>ERROR_INVALID_ARGUMENT - if the width is <code>0</code> or less than <code>-1</code></li> | |
| 2768 * </ul> | |
| 2769 * @exception DWTException <ul> | |
| 2770 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2771 * </ul> | |
| 2772 * | |
| 2773 * @see #setAlignment(int) | |
| 2774 */ | |
| 2775 public void setWidth (int width) { | |
| 2776 checkLayout(); | |
| 2777 if (width < -1 || width is 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2778 if (this.wrapWidth is width) return; | |
| 2779 freeRuns(); | |
| 2780 this.wrapWidth = width; | |
| 2781 } | |
| 2782 | |
| 249 | 2783 bool shape (HDC hdc, StyleItem run, wchar[] wchars, int[] glyphCount, int maxGlyphs, SCRIPT_PROPERTIES* sp) { |
| 2784 //wchar[] wchars = StrToWCHARs( chars ); | |
| 246 | 2785 bool useCMAPcheck = !sp.fComplex && !run.analysis.fNoGlyphIndex; |
| 2786 if (useCMAPcheck) { | |
| 249 | 2787 ushort[] glyphs = new ushort[wchars.length]; |
| 2788 scope(exit) delete glyphs; | |
| 2789 if (OS.ScriptGetCMap(hdc, run.psc, wchars.ptr, wchars.length, 0, glyphs.ptr) !is OS.S_OK) { | |
| 2790 if (run.psc !is null) { | |
| 246 | 2791 OS.ScriptFreeCache(run.psc); |
| 2792 glyphCount[0] = 0; | |
| 249 | 2793 *cast(int*)run.psc = 1; |
| 246 | 2794 } |
| 2795 return false; | |
| 2796 } | |
| 2797 } | |
| 30 | 2798 auto hr = OS.ScriptShape(hdc, run.psc, wchars.ptr, wchars.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, glyphCount.ptr); |
| 29 | 2799 run.glyphCount = glyphCount[0]; |
| 246 | 2800 if (useCMAPcheck) return true; |
| 2801 | |
| 29 | 2802 if (hr !is OS.USP_E_SCRIPT_NOT_IN_FONT) { |
| 246 | 2803 if (run.analysis.fNoGlyphIndex) return true; |
| 30 | 2804 SCRIPT_FONTPROPERTIES fp; |
| 29 | 2805 fp.cBytes = SCRIPT_FONTPROPERTIES.sizeof; |
| 30 | 2806 OS.ScriptGetFontProperties(hdc, run.psc, &fp); |
| 2807 ushort[] glyphs = run.glyphs[ 0 .. glyphCount[0] ]; | |
| 29 | 2808 int i; |
| 2809 for (i = 0; i < glyphs.length; i++) { | |
| 2810 if (glyphs[i] is fp.wgDefault) break; | |
| 2811 } | |
| 2812 if (i is glyphs.length) return true; | |
| 2813 } | |
| 30 | 2814 if (run.psc !is null) { |
| 29 | 2815 OS.ScriptFreeCache(run.psc); |
| 2816 glyphCount[0] = 0; | |
| 30 | 2817 *cast(int*)run.psc = 0; |
| 29 | 2818 } |
| 2819 run.glyphCount = 0; | |
| 2820 return false; | |
| 2821 } | |
| 2822 | |
| 213 | 2823 struct CallbackDataEnumFontFamExProc { |
| 2824 int delegate ( ENUMLOGFONTEX* lpelfe, NEWTEXTMETRICEX* lpntme, int FontType, int lParam) EnumFontFamExProc; | |
| 2825 int lParam; | |
| 2826 } | |
| 2827 extern(Windows) private static int EnumFontFamExProcFunc( ENUMLOGFONTEX* lpelfe, NEWTEXTMETRICEX* lpntme, int FontType, int lParam) { | |
| 2828 auto cb = cast(CallbackDataEnumFontFamExProc*)cast(void*)lParam; | |
| 2829 return cb.EnumFontFamExProc( lpelfe, lpntme, FontType, cb.lParam ); | |
| 2830 } | |
| 2831 | |
| 29 | 2832 /* |
| 2833 * Generate glyphs for one Run. | |
| 2834 */ | |
| 2835 void shape (HDC hdc, StyleItem run) { | |
| 213 | 2836 final int[] buffer = new int[1]; |
| 2837 final char[] chars = new char[run.length]; | |
| 29 | 2838 segmentsText.getChars(run.start, run.start + run.length, chars, 0); |
| 30 | 2839 wchar[] wchars = StrToWCHARs( chars ); |
| 249 | 2840 int maxGlyphs = (wchars.length * 3 / 2) + 16; |
| 30 | 2841 auto hHeap = OS.GetProcessHeap(); |
| 2842 run.glyphs = cast(ushort*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2843 if (run.glyphs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2844 run.clusters = cast(WORD*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2845 if (run.clusters is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2846 run.visAttrs = cast(SCRIPT_VISATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * SCRIPT_VISATTR_SIZEOF); | |
| 2847 if (run.visAttrs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2848 run.psc = cast(SCRIPT_CACHE*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, (void*).sizeof); |
| 30 | 2849 if (run.psc is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 249 | 2850 short script = run.analysis.eScript; |
| 2851 auto sp = device.scripts[script]; | |
| 2852 bool shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, sp); | |
| 213 | 2853 if (!shapeSucceed) { |
| 249 | 2854 auto hFont = OS.GetCurrentObject(hdc, OS.OBJ_FONT); |
| 2855 auto ssa = cast(SCRIPT_STRING_ANALYSIS*) OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_STRING_ANALYSIS.sizeof); | |
| 2856 auto metaFileDc = OS.CreateEnhMetaFile(hdc, null, null, null); | |
| 2857 auto oldMetaFont = OS.SelectObject(metaFileDc, hFont); | |
| 246 | 2858 int flags = OS.SSA_METAFILE | OS.SSA_FALLBACK | OS.SSA_GLYPHS | OS.SSA_LINK; |
| 249 | 2859 if (OS.ScriptStringAnalyse(metaFileDc, wchars.ptr, wchars.length, 0, -1, flags, 0, null, null, null, null, null, ssa) is OS.S_OK) { |
| 246 | 2860 OS.ScriptStringOut(ssa, 0, 0, 0, null, 0, 0, false); |
| 2861 OS.ScriptStringFree(ssa); | |
| 2862 } | |
| 2863 OS.HeapFree(hHeap, 0, ssa); | |
| 2864 OS.SelectObject(metaFileDc, oldMetaFont); | |
| 249 | 2865 auto metaFile = OS.CloseEnhMetaFile(metaFileDc); |
| 2866 EMREXTCREATEFONTINDIRECTW emr; | |
| 2867 static extern(Windows) int metaFileEnumProc (HDC hDC, HANDLETABLE* table, ENHMETARECORD* record, int nObj, LPARAM lpData) { | |
| 2868 EMREXTCREATEFONTINDIRECTW* emr_; | |
| 2869 OS.MoveMemory(&emr_.emr, record, EMR.sizeof); | |
| 2870 switch (emr_.emr.iType) { | |
| 2871 case OS.EMR_EXTCREATEFONTINDIRECTW: | |
| 2872 OS.MoveMemory(emr_, record, EMREXTCREATEFONTINDIRECTW.sizeof); | |
| 2873 break; | |
| 2874 case OS.EMR_EXTTEXTOUTW: | |
| 2875 return 0; | |
| 246 | 2876 } |
| 249 | 2877 return 1; |
| 2878 } | |
| 2879 OS.EnumEnhMetaFile(null, metaFile, &metaFileEnumProc, &emr, null); | |
| 246 | 2880 OS.DeleteEnhMetaFile(metaFile); |
| 2881 | |
| 249 | 2882 auto newFont = OS.CreateFontIndirectW(&emr.elfw.elfLogFont); |
| 246 | 2883 OS.SelectObject(hdc, newFont); |
| 249 | 2884 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, sp)) is true ) { |
| 246 | 2885 run.fallbackFont = newFont; |
| 2886 } | |
| 2887 if (!shapeSucceed) { | |
| 2888 if (!sp.fComplex) { | |
| 2889 run.analysis.fNoGlyphIndex = true; | |
| 249 | 2890 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, sp)) is true ) { |
| 246 | 2891 run.fallbackFont = newFont; |
| 29 | 2892 } else { |
| 246 | 2893 run.analysis.fNoGlyphIndex = false; |
| 29 | 2894 } |
| 2895 } | |
| 2896 } | |
| 246 | 2897 if (!shapeSucceed) { |
| 2898 if (mLangFontLink2 !is null) { | |
| 2899 HANDLE hNewFont; | |
| 2900 int dwCodePages, cchCodePages; | |
| 2901 /* GetStrCodePages() */ | |
| 2902 OS.VtblCall(4, mLangFontLink2, cast(int)wchars.ptr, wchars.length, 0, cast(int)&dwCodePages, cast(int)&cchCodePages); | |
| 2903 /* MapFont() */ | |
| 2904 if (OS.VtblCall(10, mLangFontLink2, cast(int)hdc, dwCodePages, cast(int)wchars[0], cast(int)&hNewFont) is OS.S_OK) { | |
| 2905 LOGFONT logFont; | |
| 2906 OS.GetObject( hNewFont, LOGFONT.sizeof, &logFont ); | |
| 2907 /* ReleaseFont() */ | |
| 2908 OS.VtblCall(8, mLangFontLink2, cast(int)hNewFont); | |
| 249 | 2909 auto mLangFont = OS.CreateFontIndirect(&logFont); |
| 246 | 2910 auto oldFont = OS.SelectObject(hdc, mLangFont); |
| 249 | 2911 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, sp)) is true ) { |
| 246 | 2912 run.fallbackFont = mLangFont; |
| 2913 } else { | |
| 2914 OS.SelectObject(hdc, oldFont); | |
| 2915 OS.DeleteObject(mLangFont); | |
| 2916 } | |
| 2917 } | |
| 213 | 2918 } |
| 2919 } | |
| 246 | 2920 if (!shapeSucceed) OS.SelectObject(hdc, hFont); |
| 2921 if (newFont !is run.fallbackFont) OS.DeleteObject(newFont); | |
| 213 | 2922 } |
| 2923 | |
| 2924 if (!shapeSucceed) { | |
| 2925 /* | |
| 2926 * Shape Failed. | |
| 2927 * Give up and shape the run with the default font. | |
| 2928 * Missing glyphs typically will be represent as black boxes in the text. | |
| 2929 */ | |
| 2930 auto wchars_ = StrToWCHARs(chars); | |
| 2931 OS.ScriptShape(hdc, run.psc, wchars_.ptr, wchars_.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, buffer.ptr); | |
| 2932 run.glyphCount = buffer[0]; | |
| 2933 } | |
| 2934 int[3] abc; | |
| 30 | 2935 run.advances = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * 4); |
| 2936 if (run.advances is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2937 run.goffsets = cast(GOFFSET*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * GOFFSET_SIZEOF); | |
| 2938 if (run.goffsets is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2939 OS.ScriptPlace(hdc, run.psc, run.glyphs, run.glyphCount, run.visAttrs, &run.analysis, run.advances, run.goffsets, cast(ABC*)abc.ptr); |
| 2940 run.width = abc[0] + abc[1] + abc[2]; | |
| 2941 TextStyle style = run.style; | |
| 2942 if (style !is null) { | |
| 2943 OUTLINETEXTMETRIC* lotm = null; | |
| 2944 if (style.underline || style.strikeout) { | |
| 2945 lotm = new OUTLINETEXTMETRIC(); | |
| 2946 if (OS.GetOutlineTextMetrics(hdc, OUTLINETEXTMETRIC.sizeof, lotm) is 0) { | |
| 2947 lotm = null; | |
| 2948 } | |
| 2949 } | |
| 2950 if (style.metrics !is null) { | |
| 2951 GlyphMetrics metrics = style.metrics; | |
| 2952 /* | |
| 2953 * Bug in Windows, on a Japanese machine, Uniscribe returns glyphcount | |
| 2954 * equals zero for FFFC (possibly other unicode code points), the fix | |
| 2955 * is to make sure the glyph is at least one pixel wide. | |
| 2956 */ | |
| 2957 run.width = metrics.width * Math.max (1, run.glyphCount); | |
| 2958 run.ascent = metrics.ascent; | |
| 2959 run.descent = metrics.descent; | |
| 2960 run.leading = 0; | |
| 2961 } else { | |
| 2962 TEXTMETRIC lptm; | |
| 2963 if (lotm !is null) { | |
| 2964 lptm = lotm.otmTextMetrics; | |
| 2965 } else { | |
| 2966 lptm = TEXTMETRIC.init; | |
| 2967 OS.GetTextMetrics(hdc, &lptm); | |
| 2968 } | |
| 2969 run.ascent = lptm.tmAscent; | |
| 2970 run.descent = lptm.tmDescent; | |
| 2971 run.leading = lptm.tmInternalLeading; | |
| 2972 } | |
| 2973 if (lotm !is null) { | |
| 2974 run.underlinePos = lotm.otmsUnderscorePosition; | |
| 2975 run.underlineThickness = Math.max(1, lotm.otmsUnderscoreSize); | |
| 2976 run.strikeoutPos = lotm.otmsStrikeoutPosition; | |
| 2977 run.strikeoutThickness = Math.max(1, lotm.otmsStrikeoutSize); | |
| 2978 } else { | |
| 2979 run.underlinePos = 1; | |
| 2980 run.underlineThickness = 1; | |
| 2981 run.strikeoutPos = run.ascent / 2; | |
| 2982 run.strikeoutThickness = 1; | |
| 2983 } | |
| 2984 run.ascent += style.rise; | |
| 2985 run.descent -= style.rise; | |
| 29 | 2986 } else { |
| 2987 TEXTMETRIC lptm; | |
| 2988 OS.GetTextMetrics(hdc, &lptm); | |
| 2989 run.ascent = lptm.tmAscent; | |
| 2990 run.descent = lptm.tmDescent; | |
| 2991 run.leading = lptm.tmInternalLeading; | |
| 2992 } | |
| 2993 } | |
| 2994 | |
| 2995 int validadeOffset(int offset, int step) { | |
| 2996 offset += step; | |
| 2997 if (segments !is null && segments.length > 2) { | |
| 2998 for (int i = 0; i < segments.length; i++) { | |
| 2999 if (translateOffset(segments[i]) - 1 is offset) { | |
| 3000 offset += step; | |
| 3001 break; | |
| 3002 } | |
| 3003 } | |
| 3004 } | |
| 3005 return offset; | |
| 3006 } | |
| 3007 | |
| 3008 /** | |
| 3009 * Returns a string containing a concise, human-readable | |
| 3010 * description of the receiver. | |
| 3011 * | |
| 3012 * @return a string representation of the receiver | |
| 3013 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
3014 override public String toString () { |
| 29 | 3015 if (isDisposed()) return "TextLayout {*DISPOSED*}"; |
| 3016 return "TextLayout {}"; | |
| 3017 } | |
| 3018 | |
| 3019 int translateOffset(int offset) { | |
| 3020 if (segments is null) return offset; | |
| 3021 int nSegments = segments.length; | |
| 3022 if (nSegments <= 1) return offset; | |
| 227 | 3023 int length = text.length; |
| 3024 if (length is 0) return offset; | |
| 29 | 3025 if (nSegments is 2) { |
| 227 | 3026 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3027 } |
| 3028 for (int i = 0; i < nSegments && offset - i >= segments[i]; i++) { | |
| 3029 offset++; | |
| 3030 } | |
| 3031 return offset; | |
| 3032 } | |
| 3033 | |
| 3034 int untranslateOffset(int offset) { | |
| 3035 if (segments is null) return offset; | |
| 3036 int nSegments = segments.length; | |
| 3037 if (nSegments <= 1) return offset; | |
| 227 | 3038 int length = text.length; |
| 3039 if (length is 0) return offset; | |
| 29 | 3040 if (nSegments is 2) { |
| 227 | 3041 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3042 } |
| 3043 for (int i = 0; i < nSegments && offset > segments[i]; i++) { | |
| 3044 offset--; | |
| 3045 } | |
| 3046 return offset; | |
| 3047 } | |
| 3048 } |