Mercurial > projects > dwt-win
annotate dwt/graphics/TextLayout.d @ 229:5ff96efb6f4b
Additions for forms
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sat, 24 May 2008 08:37:28 +0200 |
| parents | b74b74ce5c7d |
| children | c853f6513712 |
| rev | line source |
|---|---|
| 29 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 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 | |
| 229 | 15 import tango.util.log.Trace; |
| 16 | |
| 29 | 17 import dwt.DWT; |
| 18 import dwt.DWTException; | |
| 19 import dwt.internal.Compatibility; | |
| 20 import dwt.internal.gdip.Gdip; | |
| 213 | 21 |
| 29 | 22 import dwt.internal.win32.OS; |
| 23 | |
| 24 import dwt.graphics.Color; | |
| 25 import dwt.graphics.Device; | |
| 26 import dwt.graphics.Font; | |
| 27 import dwt.graphics.FontMetrics; | |
| 28 import dwt.graphics.GC; | |
| 29 import dwt.graphics.GCData; | |
| 30 import dwt.graphics.GlyphMetrics; | |
| 31 import dwt.graphics.Point; | |
| 32 import dwt.graphics.Rectangle; | |
| 33 import dwt.graphics.Region; | |
| 34 import dwt.graphics.Resource; | |
| 35 import dwt.graphics.TextStyle; | |
| 36 | |
| 37 import tango.text.convert.Format; | |
| 38 import dwt.dwthelper.utils; | |
| 30 | 39 import dwt.dwthelper.System; |
| 29 | 40 |
| 227 | 41 |
| 29 | 42 /** |
| 43 * <code>TextLayout</code> is a graphic object that represents | |
| 44 * styled text. | |
| 45 * <p> | |
| 46 * Instances of this class provide support for drawing, cursor | |
| 47 * navigation, hit testing, text wrapping, alignment, tab expansion | |
| 48 * line breaking, etc. These are aspects required for rendering internationalized text. | |
| 49 * </p><p> | |
| 50 * Application code must explicitly invoke the <code>TextLayout#dispose()</code> | |
| 51 * method to release the operating system resources managed by each instance | |
| 52 * when those instances are no longer required. | |
| 53 * </p> | |
| 54 * | |
| 55 * @since 3.0 | |
| 56 */ | |
| 57 public final class TextLayout : Resource { | |
| 227 | 58 |
| 213 | 59 alias Resource.init_ init_; |
| 60 | |
| 227 | 61 /++ |
| 229 | 62 + DWT doku |
| 63 + The styles has at minimum 2 member, each with a start. The last element is the end marker. | |
| 64 + | |
| 65 + invariant{ | |
| 66 + assert( stylesCount >= 2 ); | |
| 67 + assert( stylesCount <= styles.length ); | |
| 68 + assert( styles[stylesCount-1] ); | |
| 69 + assert( styles[stylesCount-1].start is text.length ); | |
| 70 + } | |
| 71 +/ | |
| 227 | 72 |
| 73 | |
| 29 | 74 Font font; |
|
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reverted the char[] to String and use the an alias.
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parents:
157
diff
changeset
|
75 String text, segmentsText; |
| 29 | 76 int lineSpacing; |
| 77 int ascent, descent; | |
| 78 int alignment; | |
| 79 int wrapWidth; | |
| 80 int orientation; | |
| 81 int indent; | |
| 82 bool justify; | |
| 83 int[] tabs; | |
| 84 int[] segments; | |
| 85 StyleItem[] styles; | |
| 213 | 86 int stylesCount; |
| 29 | 87 |
| 88 StyleItem[] allRuns; | |
| 89 StyleItem[][] runs; | |
| 90 int[] lineOffset, lineY, lineWidth; | |
| 30 | 91 void* mLangFontLink2; |
| 29 | 92 |
| 93 static const wchar LTR_MARK = '\u200E', RTL_MARK = '\u200F'; | |
| 94 static const int SCRIPT_VISATTR_SIZEOF = 2; | |
| 95 static const int GOFFSET_SIZEOF = 8; | |
| 80 | 96 private static byte[16] CLSID_CMultiLanguage; |
| 97 private static byte[16] IID_IMLangFontLink2; | |
| 98 private static bool static_this_completed = false; | |
| 99 private static void static_this() { | |
| 100 // in case of allready initialized, we can check and leave without lock | |
| 101 if( static_this_completed ){ | |
| 102 return; | |
| 103 } | |
| 104 synchronized { | |
| 105 if( !static_this_completed ){ | |
| 106 OS.IIDFromString("{275c23e2-3747-11d0-9fea-00aa003f8646}\0".toCharArray().ptr, CLSID_CMultiLanguage.ptr); | |
| 107 OS.IIDFromString("{DCCFC162-2B38-11d2-B7EC-00C04F8F5D9A}\0".toCharArray().ptr, IID_IMLangFontLink2.ptr); | |
| 108 static_this_completed = true; | |
| 109 } | |
| 110 } | |
| 29 | 111 } |
| 112 | |
| 213 | 113 /* IME has a copy of these constants */ |
| 114 static const int UNDERLINE_IME_DOT = 1 << 16; | |
| 115 static const int UNDERLINE_IME_DASH = 2 << 16; | |
| 116 static const int UNDERLINE_IME_THICK = 3 << 16; | |
| 117 | |
| 29 | 118 class StyleItem { |
| 119 TextStyle style; | |
| 120 int start, length; | |
| 121 bool lineBreak, softBreak, tab; | |
| 122 | |
| 123 /*Script cache and analysis */ | |
| 124 SCRIPT_ANALYSIS analysis; | |
| 125 SCRIPT_CACHE* psc; | |
| 126 | |
| 127 /*Shape info (malloc when the run is shaped) */ | |
| 128 WORD* glyphs; | |
| 129 int glyphCount; | |
| 130 WORD* clusters; | |
| 131 SCRIPT_VISATTR* visAttrs; | |
| 132 | |
| 133 /*Place info (malloc when the run is placed) */ | |
| 134 int* advances; | |
| 30 | 135 GOFFSET* goffsets; |
| 136 int width; | |
| 137 int ascent; | |
| 138 int descent; | |
| 139 int leading; | |
| 140 int x; | |
| 213 | 141 int underlinePos, underlineThickness; |
| 142 int strikeoutPos, strikeoutThickness; | |
| 29 | 143 |
| 144 /* Justify info (malloc during computeRuns) */ | |
| 145 int* justify; | |
| 146 | |
| 147 /* ScriptBreak */ | |
| 148 SCRIPT_LOGATTR* psla; | |
| 149 | |
| 30 | 150 HFONT fallbackFont; |
| 29 | 151 |
| 152 void free() { | |
| 153 auto hHeap = OS.GetProcessHeap(); | |
| 154 if (psc !is null) { | |
| 155 OS.ScriptFreeCache (psc); | |
| 156 OS.HeapFree(hHeap, 0, psc); | |
| 157 psc = null; | |
| 158 } | |
| 159 if (glyphs !is null) { | |
| 160 OS.HeapFree(hHeap, 0, glyphs); | |
| 161 glyphs = null; | |
| 162 glyphCount = 0; | |
| 163 } | |
| 164 if (clusters !is null) { | |
| 165 OS.HeapFree(hHeap, 0, clusters); | |
| 166 clusters = null; | |
| 167 } | |
| 168 if (visAttrs !is null) { | |
| 169 OS.HeapFree(hHeap, 0, visAttrs); | |
| 170 visAttrs = null; | |
| 171 } | |
| 172 if (advances !is null) { | |
| 173 OS.HeapFree(hHeap, 0, advances); | |
| 174 advances = null; | |
| 175 } | |
| 176 if (goffsets !is null) { | |
| 177 OS.HeapFree(hHeap, 0, goffsets); | |
| 178 goffsets = null; | |
| 179 } | |
| 180 if (justify !is null) { | |
| 181 OS.HeapFree(hHeap, 0, justify); | |
| 182 justify = null; | |
| 183 } | |
| 184 if (psla !is null) { | |
| 185 OS.HeapFree(hHeap, 0, psla); | |
| 186 psla = null; | |
| 187 } | |
| 188 if (fallbackFont !is null) { | |
| 30 | 189 if (mLangFontLink2 !is null) { |
| 29 | 190 /* ReleaseFont() */ |
| 30 | 191 OS.VtblCall(8, mLangFontLink2, cast(int)fallbackFont); |
| 29 | 192 } |
| 193 fallbackFont = null; | |
| 194 } | |
| 30 | 195 width = 0; |
| 196 ascent = 0; | |
| 197 descent = 0; | |
| 198 x = 0; | |
| 29 | 199 lineBreak = softBreak = false; |
| 200 } | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
201 override public String toString () { |
| 29 | 202 return Format( "StyleItem {{{}, {}}", start, style ); |
| 203 } | |
| 204 } | |
| 205 | |
| 206 /** | |
| 207 * Constructs a new instance of this class on the given device. | |
| 208 * <p> | |
| 209 * You must dispose the text layout when it is no longer required. | |
| 210 * </p> | |
| 211 * | |
| 212 * @param device the device on which to allocate the text layout | |
| 213 * | |
| 214 * @exception IllegalArgumentException <ul> | |
| 215 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 216 * </ul> | |
| 217 * | |
| 218 * @see #dispose() | |
| 219 */ | |
| 220 public this (Device device) { | |
| 80 | 221 static_this(); |
| 213 | 222 super(device); |
| 29 | 223 wrapWidth = ascent = descent = -1; |
| 224 lineSpacing = 0; | |
| 225 orientation = DWT.LEFT_TO_RIGHT; | |
| 226 styles = new StyleItem[2]; | |
| 227 styles[0] = new StyleItem(); | |
| 228 styles[1] = new StyleItem(); | |
| 213 | 229 stylesCount = 2; |
| 29 | 230 text = ""; //$NON-NLS-1$ |
| 30 | 231 void* ppv; |
| 232 OS.OleInitialize(null); | |
| 233 if (OS.CoCreateInstance(CLSID_CMultiLanguage.ptr, null, OS.CLSCTX_INPROC_SERVER, IID_IMLangFontLink2.ptr, cast(void*)&ppv) is OS.S_OK) { | |
| 234 mLangFontLink2 = ppv; | |
| 29 | 235 } |
| 213 | 236 init_(); |
| 29 | 237 } |
| 238 | |
| 239 void breakRun(StyleItem run) { | |
| 30 | 240 if (run.psla !is null) return; |
| 59 | 241 wchar[] chars = StrToWCHARs( 0, segmentsText[ run.start .. run.start + run.length ] ); |
| 30 | 242 auto hHeap = OS.GetProcessHeap(); |
| 243 run.psla = cast(SCRIPT_LOGATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_LOGATTR.sizeof * chars.length); | |
| 244 if (run.psla is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 245 OS.ScriptBreak(chars.ptr, chars.length, &run.analysis, run.psla); | |
| 29 | 246 } |
| 247 | |
| 30 | 248 void checkItem (HDC hDC, StyleItem item) { |
| 249 if (item.fallbackFont !is null) { | |
| 29 | 250 /* |
| 251 * Feature in Windows. The fallback font returned by the MLang service | |
| 252 * can be disposed by some other client running in the same thread. | |
| 253 * For example, disposing a Browser widget internally releases all fonts | |
| 254 * in the MLang cache. The fix is to use GetObject() to detect if the | |
| 255 * font was disposed and reshape the run. | |
| 256 */ | |
| 257 LOGFONT logFont; | |
| 30 | 258 if (OS.GetObject( item.fallbackFont, LOGFONT.sizeof, &logFont) is 0) { |
| 29 | 259 item.free(); |
| 260 OS.SelectObject(hDC, getItemFont(item)); | |
| 261 shape(hDC, item); | |
| 262 } | |
| 263 } | |
| 264 } | |
| 265 | |
| 266 void checkLayout () { | |
| 267 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); | |
| 268 } | |
| 269 | |
| 270 /* | |
| 271 * Compute the runs: itemize, shape, place, and reorder the runs. | |
| 272 * Break paragraphs into lines, wraps the text, and initialize caches. | |
| 273 */ | |
| 274 void computeRuns (GC gc) { | |
| 275 if (runs !is null) return; | |
| 30 | 276 auto hDC = gc !is null ? gc.handle : device.internal_new_GC(null); |
| 277 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 278 allRuns = itemize(); |
| 279 for (int i=0; i<allRuns.length - 1; i++) { | |
| 280 StyleItem run = allRuns[i]; | |
| 281 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 282 shape(srcHdc, run); | |
| 283 } | |
| 30 | 284 SCRIPT_LOGATTR* logAttr; |
| 285 SCRIPT_PROPERTIES* properties; | |
| 29 | 286 int lineWidth = indent, lineStart = 0, lineCount = 1; |
| 287 for (int i=0; i<allRuns.length - 1; i++) { | |
| 288 StyleItem run = allRuns[i]; | |
| 289 if (run.length is 1) { | |
| 290 char ch = segmentsText.charAt(run.start); | |
| 291 switch (ch) { | |
| 292 case '\t': { | |
| 293 run.tab = true; | |
| 294 if (tabs is null) break; | |
| 295 int tabsLength = tabs.length, j; | |
| 296 for (j = 0; j < tabsLength; j++) { | |
| 297 if (tabs[j] > lineWidth) { | |
| 298 run.width = tabs[j] - lineWidth; | |
| 299 break; | |
| 300 } | |
| 301 } | |
| 302 if (j is tabsLength) { | |
| 303 int tabX = tabs[tabsLength-1]; | |
| 304 int lastTabWidth = tabsLength > 1 ? tabs[tabsLength-1] - tabs[tabsLength-2] : tabs[0]; | |
| 305 if (lastTabWidth > 0) { | |
| 306 while (tabX <= lineWidth) tabX += lastTabWidth; | |
| 307 run.width = tabX - lineWidth; | |
| 308 } | |
| 309 } | |
| 310 break; | |
| 311 } | |
| 312 case '\n': { | |
| 313 run.lineBreak = true; | |
| 314 break; | |
| 315 } | |
| 316 case '\r': { | |
| 317 run.lineBreak = true; | |
| 318 StyleItem next = allRuns[i + 1]; | |
| 319 if (next.length !is 0 && segmentsText.charAt(next.start) is '\n') { | |
| 320 run.length += 1; | |
| 321 next.free(); | |
| 322 i++; | |
| 323 } | |
| 324 break; | |
| 325 } | |
| 81 | 326 default: |
| 29 | 327 } |
| 328 } | |
| 329 if (wrapWidth !is -1 && lineWidth + run.width > wrapWidth && !run.tab) { | |
| 330 int start = 0; | |
| 331 int[] piDx = new int[run.length]; | |
| 332 if (run.style !is null && run.style.metrics !is null) { | |
| 333 piDx[0] = run.width; | |
| 334 } else { | |
| 30 | 335 OS.ScriptGetLogicalWidths(&run.analysis, run.length, run.glyphCount, run.advances, run.clusters, run.visAttrs, piDx.ptr); |
| 29 | 336 } |
| 337 int width = 0, maxWidth = wrapWidth - lineWidth; | |
| 338 while (width + piDx[start] < maxWidth) { | |
| 339 width += piDx[start++]; | |
| 340 } | |
| 341 int firstStart = start; | |
| 342 int firstIndice = i; | |
| 343 while (i >= lineStart) { | |
| 344 breakRun(run); | |
| 345 while (start >= 0) { | |
| 30 | 346 logAttr = run.psla + start; |
| 347 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 348 if (logAttr.fSoftBreak || logAttr.fWhiteSpace) break; |
| 349 start--; | |
| 350 } | |
| 351 | |
| 352 /* | |
| 353 * Bug in Windows. For some reason Uniscribe sets the fSoftBreak flag for the first letter | |
| 354 * after a letter with an accent. This cause a break line to be set in the middle of a word. | |
| 355 * The fix is to detect the case and ignore fSoftBreak forcing the algorithm keep searching. | |
| 356 */ | |
| 357 if (start is 0 && i !is lineStart && !run.tab) { | |
| 358 if (logAttr.fSoftBreak && !logAttr.fWhiteSpace) { | |
| 30 | 359 properties = device.scripts[run.analysis.eScript]; |
| 360 //OS.MoveMemory(properties, device.scripts[run.analysis.eScript], SCRIPT_PROPERTIES.sizeof); | |
| 29 | 361 int langID = properties.langid; |
| 362 StyleItem pRun = allRuns[i - 1]; | |
| 30 | 363 //OS.MoveMemory(properties, device.scripts[pRun.analysis.eScript], SCRIPT_PROPERTIES.sizeof); |
| 29 | 364 if (properties.langid is langID || langID is OS.LANG_NEUTRAL || properties.langid is OS.LANG_NEUTRAL) { |
| 365 breakRun(pRun); | |
| 30 | 366 logAttr = pRun.psla + (pRun.length - 1); |
| 367 //OS.MoveMemory(logAttr, pRun.psla + ((pRun.length - 1) * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 368 if (!logAttr.fWhiteSpace) start = -1; |
| 369 } | |
| 370 } | |
| 371 } | |
| 372 if (start >= 0 || i is lineStart) break; | |
| 373 run = allRuns[--i]; | |
| 374 start = run.length - 1; | |
| 375 } | |
| 376 if (start is 0 && i !is lineStart && !run.tab) { | |
| 377 run = allRuns[--i]; | |
| 378 } else if (start <= 0 && i is lineStart) { | |
| 213 | 379 if (lineWidth is wrapWidth && firstIndice > 0) { |
| 380 i = firstIndice - 1; | |
| 381 run = allRuns[i]; | |
| 382 start = run.length; | |
| 383 } else { | |
| 384 i = firstIndice; | |
| 385 run = allRuns[i]; | |
| 386 start = Math.max(1, firstStart); | |
| 387 } | |
| 29 | 388 } |
| 389 breakRun(run); | |
| 390 while (start < run.length) { | |
| 30 | 391 logAttr = run.psla + start; |
| 392 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 393 if (!logAttr.fWhiteSpace) break; |
| 394 start++; | |
| 395 } | |
| 396 if (0 < start && start < run.length) { | |
| 397 StyleItem newRun = new StyleItem(); | |
| 398 newRun.start = run.start + start; | |
| 399 newRun.length = run.length - start; | |
| 400 newRun.style = run.style; | |
| 401 newRun.analysis = run.analysis; | |
| 402 run.free(); | |
| 403 run.length = start; | |
| 404 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 405 shape (srcHdc, run); | |
| 406 OS.SelectObject(srcHdc, getItemFont(newRun)); | |
| 407 shape (srcHdc, newRun); | |
| 408 StyleItem[] newAllRuns = new StyleItem[allRuns.length + 1]; | |
| 409 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 410 System.arraycopy(allRuns, i + 1, newAllRuns, i + 2, allRuns.length - i - 1); | |
| 411 allRuns = newAllRuns; | |
| 412 allRuns[i + 1] = newRun; | |
| 413 } | |
| 414 if (i !is allRuns.length - 2) { | |
| 415 run.softBreak = run.lineBreak = true; | |
| 416 } | |
| 417 } | |
| 418 lineWidth += run.width; | |
| 419 if (run.lineBreak) { | |
| 420 lineStart = i + 1; | |
| 421 lineWidth = run.softBreak ? 0 : indent; | |
| 422 lineCount++; | |
| 423 } | |
| 424 } | |
| 425 lineWidth = 0; | |
| 30 | 426 runs = new StyleItem[][](lineCount); |
| 29 | 427 lineOffset = new int[lineCount + 1]; |
| 428 lineY = new int[lineCount + 1]; | |
| 429 this.lineWidth = new int[lineCount]; | |
| 430 int lineRunCount = 0, line = 0; | |
| 431 int ascent = Math.max(0, this.ascent); | |
| 432 int descent = Math.max(0, this.descent); | |
| 433 StyleItem[] lineRuns = new StyleItem[allRuns.length]; | |
| 434 for (int i=0; i<allRuns.length; i++) { | |
| 435 StyleItem run = allRuns[i]; | |
| 436 lineRuns[lineRunCount++] = run; | |
| 437 lineWidth += run.width; | |
| 438 ascent = Math.max(ascent, run.ascent); | |
| 439 descent = Math.max(descent, run.descent); | |
| 440 if (run.lineBreak || i is allRuns.length - 1) { | |
| 441 /* Update the run metrics if the last run is a hard break. */ | |
| 442 if (lineRunCount is 1 && i is allRuns.length - 1) { | |
| 443 TEXTMETRIC lptm; | |
| 444 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 445 OS.GetTextMetrics(srcHdc, &lptm); | |
| 446 run.ascent = lptm.tmAscent; | |
| 447 run.descent = lptm.tmDescent; | |
| 448 ascent = Math.max(ascent, run.ascent); | |
| 449 descent = Math.max(descent, run.descent); | |
| 450 } | |
| 451 runs[line] = new StyleItem[lineRunCount]; | |
| 452 System.arraycopy(lineRuns, 0, runs[line], 0, lineRunCount); | |
| 453 | |
| 454 if (justify && wrapWidth !is -1 && run.softBreak && lineWidth > 0) { | |
| 455 if (line is 0) { | |
| 456 lineWidth += indent; | |
| 457 } else { | |
| 458 StyleItem[] previousLine = runs[line - 1]; | |
| 459 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 460 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 461 lineWidth += indent; | |
| 462 } | |
| 463 } | |
| 30 | 464 auto hHeap = OS.GetProcessHeap(); |
| 29 | 465 int newLineWidth = 0; |
| 466 for (int j = 0; j < runs[line].length; j++) { | |
| 467 StyleItem item = runs[line][j]; | |
| 468 int iDx = item.width * wrapWidth / lineWidth; | |
| 469 if (iDx !is item.width) { | |
| 30 | 470 item.justify = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, item.glyphCount * 4); |
| 471 if (item.justify is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 472 OS.ScriptJustify(item.visAttrs, item.advances, item.glyphCount, iDx - item.width, 2, item.justify); |
| 473 item.width = iDx; | |
| 474 } | |
| 475 newLineWidth += item.width; | |
| 476 } | |
| 477 lineWidth = newLineWidth; | |
| 478 } | |
| 479 this.lineWidth[line] = lineWidth; | |
| 480 | |
| 481 StyleItem lastRun = runs[line][lineRunCount - 1]; | |
| 482 int lastOffset = lastRun.start + lastRun.length; | |
| 483 runs[line] = reorder(runs[line], i is allRuns.length - 1); | |
| 484 lastRun = runs[line][lineRunCount - 1]; | |
| 485 if (run.softBreak && run !is lastRun) { | |
| 486 run.softBreak = run.lineBreak = false; | |
| 487 lastRun.softBreak = lastRun.lineBreak = true; | |
| 488 } | |
| 489 | |
| 490 lineWidth = getLineIndent(line); | |
| 491 for (int j = 0; j < runs[line].length; j++) { | |
| 492 runs[line][j].x = lineWidth; | |
| 493 lineWidth += runs[line][j].width; | |
| 494 } | |
| 495 line++; | |
| 496 lineY[line] = lineY[line - 1] + ascent + descent + lineSpacing; | |
| 497 lineOffset[line] = lastOffset; | |
| 498 lineRunCount = lineWidth = 0; | |
| 499 ascent = Math.max(0, this.ascent); | |
| 500 descent = Math.max(0, this.descent); | |
| 501 } | |
| 502 } | |
| 30 | 503 if (srcHdc !is null) OS.DeleteDC(srcHdc); |
| 29 | 504 if (gc is null) device.internal_dispose_GC(hDC, null); |
| 505 } | |
| 506 | |
| 213 | 507 void destroy () { |
| 29 | 508 freeRuns(); |
| 509 font = null; | |
| 510 text = null; | |
| 511 segmentsText = null; | |
| 512 tabs = null; | |
| 513 styles = null; | |
| 514 runs = null; | |
| 515 lineOffset = null; | |
| 516 lineY = null; | |
| 517 lineWidth = null; | |
| 30 | 518 if (mLangFontLink2 !is null) { |
| 29 | 519 /* Release() */ |
| 520 OS.VtblCall(2, mLangFontLink2); | |
| 30 | 521 mLangFontLink2 = null; |
| 29 | 522 } |
| 523 OS.OleUninitialize(); | |
| 524 } | |
| 525 | |
| 526 /** | |
| 527 * Draws the receiver's text using the specified GC at the specified | |
| 528 * point. | |
| 529 * | |
| 530 * @param gc the GC to draw | |
| 531 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 532 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 533 * | |
| 534 * @exception DWTException <ul> | |
| 535 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 536 * </ul> | |
| 537 * @exception IllegalArgumentException <ul> | |
| 538 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 539 * </ul> | |
| 540 */ | |
| 541 public void draw (GC gc, int x, int y) { | |
| 542 draw(gc, x, y, -1, -1, null, null); | |
| 543 } | |
| 544 | |
| 545 /** | |
| 546 * Draws the receiver's text using the specified GC at the specified | |
| 547 * point. | |
| 548 * | |
| 549 * @param gc the GC to draw | |
| 550 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 551 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 552 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 553 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 554 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 555 * @param selectionBackground selection background, or NULL to use the system default color | |
| 556 * | |
| 557 * @exception DWTException <ul> | |
| 558 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 559 * </ul> | |
| 560 * @exception IllegalArgumentException <ul> | |
| 561 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 562 * </ul> | |
| 563 */ | |
| 564 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground) { | |
| 565 draw(gc, x, y, selectionStart, selectionEnd, selectionForeground, selectionBackground, 0); | |
| 566 } | |
| 567 | |
| 568 /** | |
| 569 * Draws the receiver's text using the specified GC at the specified | |
| 570 * point. | |
| 571 * <p> | |
| 572 * The parameter <code>flags</code> can include one of <code>DWT.DELIMITER_SELECTION</code> | |
| 573 * or <code>DWT.FULL_SELECTION</code> to specify the selection behavior on all lines except | |
| 574 * for the last line, and can also include <code>DWT.LAST_LINE_SELECTION</code> to extend | |
| 575 * the specified selection behavior to the last line. | |
| 576 * </p> | |
| 577 * @param gc the GC to draw | |
| 578 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 579 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 580 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 581 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 582 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 583 * @param selectionBackground selection background, or NULL to use the system default color | |
| 584 * @param flags drawing options | |
| 585 * | |
| 586 * @exception DWTException <ul> | |
| 587 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 588 * </ul> | |
| 589 * @exception IllegalArgumentException <ul> | |
| 590 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 591 * </ul> | |
| 592 * | |
| 593 * @since 3.3 | |
| 594 */ | |
| 595 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground, int flags) { | |
| 596 checkLayout(); | |
| 597 computeRuns(gc); | |
| 598 if (gc is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 599 if (gc.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 600 if (selectionForeground !is null && selectionForeground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 601 if (selectionBackground !is null && selectionBackground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 30 | 602 int length = text.length; |
| 29 | 603 if (length is 0 && flags is 0) return; |
| 30 | 604 auto hdc = gc.handle; |
| 29 | 605 Rectangle clip = gc.getClipping(); |
| 606 GCData data = gc.data; | |
| 30 | 607 auto gdipGraphics = data.gdipGraphics; |
| 608 auto foreground = data.foreground; | |
| 609 auto alpha = data.alpha; | |
| 610 bool gdip = gdipGraphics !is null && (alpha !is 0xFF || data.foregroundPattern !is null); | |
| 611 HRGN clipRgn; | |
| 29 | 612 float[] lpXform = null; |
| 30 | 613 Gdip.Rect gdipRect; |
| 614 if (gdipGraphics !is null && !gdip) { | |
| 615 auto matrix = Gdip.Matrix_new(1, 0, 0, 1, 0, 0); | |
| 616 if (matrix is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 617 Gdip.Graphics_GetTransform(gdipGraphics, matrix); |
| 30 | 618 auto identity_ = gc.identity(); |
| 619 Gdip.Matrix_Invert(identity_); | |
| 620 Gdip.Matrix_Multiply(matrix, identity_, Gdip.MatrixOrderAppend); | |
| 621 Gdip.Matrix_delete(identity_); | |
| 29 | 622 if (!Gdip.Matrix_IsIdentity(matrix)) { |
| 623 lpXform = new float[6]; | |
| 213 | 624 Gdip.Matrix_GetElements(matrix, lpXform.ptr); |
| 29 | 625 } |
| 626 Gdip.Matrix_delete(matrix); | |
| 627 if ((data.style & DWT.MIRRORED) !is 0 && lpXform !is null) { | |
| 628 gdip = true; | |
| 629 lpXform = null; | |
| 630 } else { | |
| 631 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeNone); | |
| 30 | 632 auto rgn = Gdip.Region_new(); |
| 29 | 633 Gdip.Graphics_GetClip(gdipGraphics, rgn); |
| 634 if (!Gdip.Region_IsInfinite(rgn, gdipGraphics)) { | |
| 635 clipRgn = Gdip.Region_GetHRGN(rgn, gdipGraphics); | |
| 636 } | |
| 637 Gdip.Region_delete(rgn); | |
| 638 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeHalf); | |
| 639 hdc = Gdip.Graphics_GetHDC(gdipGraphics); | |
| 640 } | |
| 641 } | |
|
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
|
642 Gdip.Brush foregroundBrush; |
| 30 | 643 int state = 0; |
| 29 | 644 if (gdip) { |
| 645 gc.checkGC(GC.FOREGROUND); | |
| 646 foregroundBrush = gc.getFgBrush(); | |
| 647 } else { | |
| 648 state = OS.SaveDC(hdc); | |
| 649 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 650 OS.SetLayout(hdc, OS.GetLayout(hdc) | OS.LAYOUT_RTL); | |
| 651 } | |
| 652 if (lpXform !is null) { | |
| 653 OS.SetGraphicsMode(hdc, OS.GM_ADVANCED); | |
| 30 | 654 OS.SetWorldTransform(hdc, cast(XFORM*)lpXform.ptr); |
| 29 | 655 } |
| 30 | 656 if (clipRgn !is null) { |
| 29 | 657 OS.SelectClipRgn(hdc, clipRgn); |
| 658 OS.DeleteObject(clipRgn); | |
| 659 } | |
| 660 } | |
| 661 bool hasSelection = selectionStart <= selectionEnd && selectionStart !is -1 && selectionEnd !is -1; | |
| 662 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 663 selectionStart = Math.min(Math.max(0, selectionStart), length - 1); | |
| 664 selectionEnd = Math.min(Math.max(0, selectionEnd), length - 1); | |
| 665 if (selectionForeground is null) selectionForeground = device.getSystemColor(DWT.COLOR_LIST_SELECTION_TEXT); | |
| 666 if (selectionBackground is null) selectionBackground = device.getSystemColor(DWT.COLOR_LIST_SELECTION); | |
| 667 selectionStart = translateOffset(selectionStart); | |
| 668 selectionEnd = translateOffset(selectionEnd); | |
| 669 } | |
| 30 | 670 RECT rect; |
| 213 | 671 Gdip.Brush selBrush; |
| 672 Gdip.Pen selPen; | |
| 673 Gdip.Brush selBrushFg; | |
| 30 | 674 |
| 29 | 675 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { |
| 676 if (gdip) { | |
| 30 | 677 auto bg = selectionBackground.handle; |
| 678 auto argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 679 auto color = Gdip.Color_new(argb); | |
| 213 | 680 selBrush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 681 Gdip.Color_delete(color); |
| 30 | 682 auto fg = selectionForeground.handle; |
| 29 | 683 argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 684 color = Gdip.Color_new(argb); | |
| 213 | 685 selBrushFg = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 686 selPen = cast(Gdip.Pen) Gdip.Pen_new( cast(Gdip.Brush)selBrushFg, 1); | |
| 29 | 687 Gdip.Color_delete(color); |
| 688 } else { | |
| 213 | 689 selBrush = cast(Gdip.Brush)OS.CreateSolidBrush(selectionBackground.handle); |
| 690 selPen = cast(Gdip.Pen)OS.CreatePen(OS.PS_SOLID, 1, selectionForeground.handle); | |
| 29 | 691 } |
| 692 } | |
| 693 int offset = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? -1 : 0; | |
| 694 OS.SetBkMode(hdc, OS.TRANSPARENT); | |
| 695 for (int line=0; line<runs.length; line++) { | |
| 696 int drawX = x + getLineIndent(line); | |
| 697 int drawY = y + lineY[line]; | |
| 698 StyleItem[] lineRuns = runs[line]; | |
| 213 | 699 int lineHeight = lineY[line+1] - lineY[line] - lineSpacing; |
| 29 | 700 if (flags !is 0 && (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0)) { |
| 701 bool extents = false; | |
| 702 if (line is runs.length - 1 && (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 703 extents = true; | |
| 704 } else { | |
| 705 StyleItem run = lineRuns[lineRuns.length - 1]; | |
| 706 if (run.lineBreak && !run.softBreak) { | |
| 707 if (selectionStart <= run.start && run.start <= selectionEnd) extents = true; | |
| 708 } else { | |
| 709 int endOffset = run.start + run.length - 1; | |
| 710 if (selectionStart <= endOffset && endOffset < selectionEnd && (flags & DWT.FULL_SELECTION) !is 0) { | |
| 711 extents = true; | |
| 712 } | |
| 713 } | |
| 714 } | |
| 715 if (extents) { | |
| 716 int width; | |
| 717 if ((flags & DWT.FULL_SELECTION) !is 0) { | |
| 718 width = OS.IsWin95 ? 0x7FFF : 0x6FFFFFF; | |
| 719 } else { | |
| 213 | 720 width = lineHeight / 3; |
| 29 | 721 } |
| 722 if (gdip) { | |
| 213 | 723 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX + lineWidth[line], drawY, width, lineHeight); |
| 29 | 724 } else { |
| 725 OS.SelectObject(hdc, selBrush); | |
| 213 | 726 OS.PatBlt(hdc, drawX + lineWidth[line], drawY, width, lineHeight, OS.PATCOPY); |
| 29 | 727 } |
| 728 } | |
| 729 } | |
| 730 if (drawX > clip.x + clip.width) continue; | |
| 731 if (drawX + lineWidth[line] < clip.x) continue; | |
| 732 int baseline = Math.max(0, this.ascent); | |
| 213 | 733 int lineUnderlinePos = 0; |
| 29 | 734 for (int i = 0; i < lineRuns.length; i++) { |
| 735 baseline = Math.max(baseline, lineRuns[i].ascent); | |
| 213 | 736 lineUnderlinePos = Math.min(lineUnderlinePos, lineRuns[i].underlinePos); |
| 29 | 737 } |
| 738 int alignmentX = drawX; | |
| 739 for (int i = 0; i < lineRuns.length; i++) { | |
| 740 StyleItem run = lineRuns[i]; | |
| 741 if (run.length is 0) continue; | |
| 742 if (drawX > clip.x + clip.width) break; | |
| 743 if (drawX + run.width >= clip.x) { | |
| 744 if (!run.lineBreak || run.softBreak) { | |
| 745 int end = run.start + run.length - 1; | |
| 746 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 747 if (fullSelection) { | |
| 748 if (gdip) { | |
| 213 | 749 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX, drawY, run.width, lineHeight); |
| 29 | 750 } else { |
| 751 OS.SelectObject(hdc, selBrush); | |
| 213 | 752 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 753 } |
| 754 } else { | |
| 755 if (run.style !is null && run.style.background !is null) { | |
| 30 | 756 auto bg = run.style.background.handle; |
| 29 | 757 if (gdip) { |
| 758 int argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 30 | 759 auto color = Gdip.Color_new(argb); |
| 760 auto brush = Gdip.SolidBrush_new(color); | |
| 213 | 761 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)brush, drawX, drawY, run.width, lineHeight); |
| 29 | 762 Gdip.Color_delete(color); |
| 763 Gdip.SolidBrush_delete(brush); | |
| 764 } else { | |
| 30 | 765 auto hBrush = OS.CreateSolidBrush (bg); |
| 766 auto oldBrush = OS.SelectObject(hdc, hBrush); | |
| 213 | 767 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 768 OS.SelectObject(hdc, oldBrush); |
| 769 OS.DeleteObject(hBrush); | |
| 770 } | |
| 771 } | |
| 772 bool partialSelection = hasSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 773 if (partialSelection) { | |
| 774 int selStart = Math.max(selectionStart, run.start) - run.start; | |
| 775 int selEnd = Math.min(selectionEnd, end) - run.start; | |
| 776 int cChars = run.length; | |
| 777 int gGlyphs = run.glyphCount; | |
| 30 | 778 int piX; |
| 779 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 780 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 781 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 782 rect.left = drawX + runX; |
| 783 rect.top = drawY; | |
| 30 | 784 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 785 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 786 rect.right = drawX + runX; |
| 213 | 787 rect.bottom = drawY + lineHeight; |
| 29 | 788 if (gdip) { |
| 213 | 789 if (rect.left > rect.right) { |
| 790 int tmp = rect.left; | |
| 791 rect.left = rect.right; | |
| 792 rect.right = tmp; | |
| 793 } | |
|
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
|
794 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); |
| 29 | 795 } else { |
| 796 OS.SelectObject(hdc, selBrush); | |
| 797 OS.PatBlt(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); | |
| 798 } | |
| 799 } | |
| 800 } | |
| 801 } | |
| 802 } | |
| 803 drawX += run.width; | |
| 804 } | |
| 213 | 805 RECT* borderClip = null; |
| 29 | 806 drawX = alignmentX; |
| 807 for (int i = 0; i < lineRuns.length; i++) { | |
| 808 StyleItem run = lineRuns[i]; | |
| 809 if (run.length is 0) continue; | |
| 810 if (drawX > clip.x + clip.width) break; | |
| 811 if (drawX + run.width >= clip.x) { | |
| 812 if (!run.tab && (!run.lineBreak || run.softBreak) && !(run.style !is null && run.style.metrics !is null)) { | |
| 813 int end = run.start + run.length - 1; | |
| 814 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 815 bool partialSelection = hasSelection && !fullSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 816 checkItem(hdc, run); | |
| 817 OS.SelectObject(hdc, getItemFont(run)); | |
| 818 int drawRunY = drawY + (baseline - run.ascent); | |
| 819 if (partialSelection) { | |
| 820 int selStart = Math.max(selectionStart, run.start) - run.start; | |
| 821 int selEnd = Math.min(selectionEnd, end) - run.start; | |
| 822 int cChars = run.length; | |
| 823 int gGlyphs = run.glyphCount; | |
| 30 | 824 int piX; |
| 825 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 826 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 827 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 828 rect.left = drawX + runX; |
| 829 rect.top = drawY; | |
| 30 | 830 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 831 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 832 rect.right = drawX + runX; |
| 833 rect.bottom = drawY + lineHeight; | |
| 834 } | |
| 835 if (gdip) { | |
| 836 OS.BeginPath(hdc); | |
| 30 | 837 OS.ScriptTextOut(hdc, run.psc, drawX, drawRunY, 0, null, &run.analysis , null, 0, run.glyphs, run.glyphCount, run.advances, run.justify, run.goffsets); |
| 29 | 838 OS.EndPath(hdc); |
| 839 int count = OS.GetPath(hdc, null, null, 0); | |
| 840 int[] points = new int[count*2]; | |
| 30 | 841 ubyte[] types = new ubyte[count]; |
| 842 OS.GetPath(hdc, cast(POINT*)points.ptr, types.ptr, count); | |
| 29 | 843 for (int typeIndex = 0; typeIndex < types.length; typeIndex++) { |
| 844 int newType = 0; | |
| 845 int type = types[typeIndex] & 0xFF; | |
| 846 switch (type & ~OS.PT_CLOSEFIGURE) { | |
| 847 case OS.PT_MOVETO: newType = Gdip.PathPointTypeStart; break; | |
| 848 case OS.PT_LINETO: newType = Gdip.PathPointTypeLine; break; | |
| 849 case OS.PT_BEZIERTO: newType = Gdip.PathPointTypeBezier; break; | |
| 81 | 850 default: |
| 29 | 851 } |
| 852 if ((type & OS.PT_CLOSEFIGURE) !is 0) newType |= Gdip.PathPointTypeCloseSubpath; | |
| 853 types[typeIndex] = cast(byte)newType; | |
| 854 } | |
| 213 | 855 auto path = Gdip.GraphicsPath_new(cast(Gdip.Point*)points.ptr, types.ptr, count, Gdip.FillModeAlternate); |
| 30 | 856 if (path is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 857 auto brush = foregroundBrush; | |
| 29 | 858 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
|
859 brush = cast(Gdip.Brush)selBrushFg; |
| 29 | 860 } else { |
| 861 if (run.style !is null && run.style.foreground !is null) { | |
| 30 | 862 auto fg = run.style.foreground.handle; |
| 29 | 863 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 30 | 864 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
|
865 brush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 866 Gdip.Color_delete(color); |
| 867 } | |
| 868 } | |
| 869 int gstate = 0; | |
| 870 if (partialSelection) { | |
| 871 gdipRect.X = rect.left; | |
| 872 gdipRect.Y = rect.top; | |
| 873 gdipRect.Width = rect.right - rect.left; | |
| 874 gdipRect.Height = rect.bottom - rect.top; | |
| 875 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 876 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeExclude); |
| 29 | 877 } |
| 878 int antialias = Gdip.Graphics_GetSmoothingMode(gdipGraphics), textAntialias = 0; | |
| 879 int mode = Gdip.Graphics_GetTextRenderingHint(data.gdipGraphics); | |
| 880 switch (mode) { | |
| 881 case Gdip.TextRenderingHintSystemDefault: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 882 case Gdip.TextRenderingHintSingleBitPerPixel: | |
| 883 case Gdip.TextRenderingHintSingleBitPerPixelGridFit: textAntialias = Gdip.SmoothingModeNone; break; | |
| 884 case Gdip.TextRenderingHintAntiAlias: | |
| 885 case Gdip.TextRenderingHintAntiAliasGridFit: | |
| 886 case Gdip.TextRenderingHintClearTypeGridFit: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 81 | 887 default: |
| 29 | 888 } |
| 889 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); | |
| 890 int gstate2 = 0; | |
| 891 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 892 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 893 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 894 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 895 } | |
| 896 Gdip.Graphics_FillPath(gdipGraphics, brush, path); | |
| 897 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 898 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 899 } | |
| 900 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); | |
| 213 | 901 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, brush, null, alpha); |
| 29 | 902 if (partialSelection) { |
| 903 Gdip.Graphics_Restore(gdipGraphics, gstate); | |
| 904 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 905 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeIntersect); |
| 29 | 906 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); |
| 213 | 907 if ((data.style & DWT.MIRRORED) !is 0) { |
| 908 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 909 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 910 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 911 } | |
| 912 Gdip.Graphics_FillPath(gdipGraphics, selBrushFg, path); | |
| 913 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 914 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 915 } | |
| 29 | 916 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); |
| 213 | 917 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, selBrushFg, &rect, alpha); |
| 29 | 918 Gdip.Graphics_Restore(gdipGraphics, gstate); |
| 919 } | |
| 213 | 920 borderClip = drawBorder(gdip, gdipGraphics, x, drawY, lineHeight, foregroundBrush, selBrushFg, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); |
| 29 | 921 Gdip.GraphicsPath_delete(path); |
|
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922 if ( brush !is cast(Gdip.Brush)selBrushFg && brush !is cast(Gdip.Brush)foregroundBrush) |
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923 Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); |
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924 } else { |
| 213 | 925 auto fg = foreground; |
|
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926 if (fullSelection) { |
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927 fg = selectionForeground.handle; |
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928 } else { |
|
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changeset
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929 if (run.style !is null && run.style.foreground !is null) fg = run.style.foreground.handle; |
| 29 | 930 } |
| 931 OS.SetTextColor(hdc, fg); | |
| 30 | 932 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 | 933 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)fg, null, alpha); |
| 29 | 934 if (partialSelection && fg !is selectionForeground.handle) { |
| 935 OS.SetTextColor(hdc, selectionForeground.handle); | |
| 30 | 936 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 | 937 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)selectionForeground.handle, &rect, alpha); |
| 29 | 938 } |
| 213 | 939 int selForeground = selectionForeground !is null ? selectionForeground.handle : 0; |
| 940 borderClip = drawBorder(gdip, hdc, x, drawY, lineHeight, cast(void*)foreground, cast(void*)selForeground, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); | |
| 29 | 941 } |
| 942 } | |
| 943 } | |
| 944 drawX += run.width; | |
| 945 } | |
| 946 } | |
| 947 if (gdip) { | |
|
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948 if (selBrush !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrush); |
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changeset
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949 if (selBrushFg !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrushFg); |
| 213 | 950 if (selPen !is null) Gdip.Pen_delete(selPen); |
| 29 | 951 } else { |
| 952 OS.RestoreDC(hdc, state); | |
| 30 | 953 if (gdipGraphics !is null) Gdip.Graphics_ReleaseHDC(gdipGraphics, hdc); |
| 954 if (selBrush !is null) OS.DeleteObject (selBrush); | |
| 955 if (selPen !is null) OS.DeleteObject (selPen); | |
| 29 | 956 } |
| 957 } | |
| 958 | |
| 213 | 959 void drawLines(bool advance, void* graphics, int x, int lineBaseline, int lineUnderlinePos, int lineBottom, StyleItem[] line, int index, void* color, RECT* clipRect, int alpha) { |
| 960 StyleItem run = line[index]; | |
| 961 TextStyle style = run.style; | |
| 962 if (style is null) return; | |
| 963 if (!style.underline && !style.strikeout) return; | |
| 964 int runX = x + run.x; | |
| 965 int underlineY = lineBaseline - lineUnderlinePos; | |
| 966 int strikeoutY = lineBaseline - run.strikeoutPos; | |
| 967 if (advance) { | |
| 968 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeNone); | |
| 969 auto brush = color; | |
| 970 if (style.underline) { | |
| 971 if (style.underlineColor !is null) { | |
| 972 int fg = style.underlineColor.handle; | |
| 973 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 974 auto gdiColor = Gdip.Color_new(argb); | |
| 975 brush = Gdip.SolidBrush_new(gdiColor); | |
| 976 Gdip.Color_delete(gdiColor); | |
| 977 } | |
| 978 switch (style.underlineStyle) { | |
| 979 case DWT.UNDERLINE_SQUIGGLE: | |
| 980 case DWT.UNDERLINE_ERROR: { | |
| 981 int squigglyThickness = 1; | |
| 982 int squigglyHeight = 2 * squigglyThickness; | |
| 983 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 984 int squigglyX = runX; | |
| 985 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 986 squigglyX = x + line[i - 1].x; | |
| 987 } | |
| 988 int gstate = 0; | |
| 989 if (clipRect is null) { | |
| 990 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 991 Gdip.Rect gdipRect; | |
| 992 gdipRect.X = runX; | |
| 993 gdipRect.Y = squigglyY; | |
| 994 gdipRect.Width = run.width + 1; | |
| 995 gdipRect.Height = squigglyY + squigglyHeight + 1; | |
| 996 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 997 } | |
| 998 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 999 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, squigglyThickness); | |
| 1000 Gdip.Graphics_DrawLines(cast(Gdip.Graphics)graphics, pen, cast(Gdip.Point*)points.ptr, points.length / 2); | |
| 1001 Gdip.Pen_delete(pen); | |
| 1002 if (gstate !is 0) Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1003 break; | |
| 1004 } | |
| 1005 case DWT.UNDERLINE_SINGLE: | |
| 1006 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1007 break; | |
| 1008 case DWT.UNDERLINE_DOUBLE: | |
| 1009 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1010 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY + run.underlineThickness * 2, run.width, run.underlineThickness); | |
| 1011 break; | |
| 1012 case UNDERLINE_IME_THICK: | |
| 1013 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX - run.underlineThickness, underlineY, run.width, run.underlineThickness * 2); | |
| 1014 break; | |
| 1015 case UNDERLINE_IME_DOT: | |
| 1016 case UNDERLINE_IME_DASH: { | |
| 1017 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, 1); | |
| 1018 int dashStyle = style.underlineStyle is UNDERLINE_IME_DOT ? Gdip.DashStyleDot : Gdip.DashStyleDash; | |
| 1019 Gdip.Pen_SetDashStyle(pen, dashStyle); | |
| 1020 Gdip.Graphics_DrawLine(cast(Gdip.Graphics)graphics, pen, runX, underlineY, runX + run.width, underlineY); | |
| 1021 Gdip.Pen_delete(pen); | |
| 1022 break; | |
| 1023 } | |
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1024 default: |
| 213 | 1025 } |
| 1026 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1027 } | |
| 1028 if (style.strikeout) { | |
| 1029 if (style.strikeoutColor !is null) { | |
| 1030 int fg = style.strikeoutColor.handle; | |
| 1031 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 1032 auto gdiColor = Gdip.Color_new(argb); | |
| 1033 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1034 Gdip.Color_delete(gdiColor); | |
| 1035 } | |
| 1036 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, strikeoutY, run.width, run.strikeoutThickness); | |
| 1037 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1038 } | |
| 1039 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeHalf); | |
| 1040 } else { | |
| 1041 uint colorRefUnderline = cast(uint)color; | |
| 1042 uint colorRefStrikeout = cast(uint)color; | |
| 1043 int /*long*/ brushUnderline = 0; | |
| 1044 int /*long*/ brushStrikeout = 0; | |
| 1045 RECT rect; | |
| 1046 if (style.underline) { | |
| 1047 if (style.underlineColor !is null) { | |
| 1048 colorRefUnderline = style.underlineColor.handle; | |
| 1049 } | |
| 1050 switch (style.underlineStyle) { | |
| 1051 case DWT.UNDERLINE_SQUIGGLE: | |
| 1052 case DWT.UNDERLINE_ERROR: { | |
| 1053 int squigglyThickness = 1; | |
| 1054 int squigglyHeight = 2 * squigglyThickness; | |
| 1055 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 1056 int squigglyX = runX; | |
| 1057 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 1058 squigglyX = x + line[i - 1].x; | |
| 1059 } | |
| 1060 int state = OS.SaveDC(graphics); | |
| 1061 if (clipRect !is null) { | |
| 1062 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1063 } else { | |
| 1064 OS.IntersectClipRect(graphics, runX, squigglyY, runX + run.width + 1, squigglyY + squigglyHeight + 1); | |
| 1065 } | |
| 1066 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1067 auto pen = OS.CreatePen(OS.PS_SOLID, squigglyThickness, colorRefUnderline); | |
| 1068 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1069 OS.Polyline(graphics, cast(POINT*)points.ptr, points.length / 2); | |
| 1070 int length_ = points.length; | |
| 1071 if (length_ >= 2 && squigglyThickness <= 1) { | |
| 1072 OS.SetPixel (graphics, points[length_ - 2], points[length_ - 1], colorRefUnderline); | |
| 1073 } | |
| 1074 OS.RestoreDC(graphics, state); | |
| 1075 OS.SelectObject(graphics, oldPen); | |
| 1076 OS.DeleteObject(pen); | |
| 1077 break; | |
| 1078 } | |
| 1079 case DWT.UNDERLINE_SINGLE: | |
| 1080 brushUnderline = cast(uint) OS.CreateSolidBrush(colorRefUnderline); | |
| 1081 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1082 if (clipRect !is null) { | |
| 1083 rect.left = Math.max(rect.left, clipRect.left); | |
| 1084 rect.right = Math.min(rect.right, clipRect.right); | |
| 1085 } | |
| 1086 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1087 break; | |
| 1088 case DWT.UNDERLINE_DOUBLE: | |
| 1089 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1090 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1091 if (clipRect !is null) { | |
| 1092 rect.left = Math.max(rect.left, clipRect.left); | |
| 1093 rect.right = Math.min(rect.right, clipRect.right); | |
| 1094 } | |
| 1095 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1096 OS.SetRect(&rect, runX, underlineY + run.underlineThickness * 2, runX + run.width, underlineY + run.underlineThickness * 3); | |
| 1097 if (clipRect !is null) { | |
| 1098 rect.left = Math.max(rect.left, clipRect.left); | |
| 1099 rect.right = Math.min(rect.right, clipRect.right); | |
| 1100 } | |
| 1101 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1102 break; | |
| 1103 case UNDERLINE_IME_THICK: | |
| 1104 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1105 OS.SetRect(&rect, runX, underlineY - run.underlineThickness, runX + run.width, underlineY + run.underlineThickness); | |
| 1106 if (clipRect !is null) { | |
| 1107 rect.left = Math.max(rect.left, clipRect.left); | |
| 1108 rect.right = Math.min(rect.right, clipRect.right); | |
| 1109 } | |
| 1110 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1111 break; | |
| 1112 case UNDERLINE_IME_DASH: | |
| 1113 case UNDERLINE_IME_DOT: { | |
| 1114 underlineY = lineBaseline + run.descent; | |
| 1115 int penStyle = style.underlineStyle is UNDERLINE_IME_DASH ? OS.PS_DASH : OS.PS_DOT; | |
| 1116 auto pen = OS.CreatePen(penStyle, 1, colorRefUnderline); | |
| 1117 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1118 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1119 if (clipRect !is null) { | |
| 1120 rect.left = Math.max(rect.left, clipRect.left); | |
| 1121 rect.right = Math.min(rect.right, clipRect.right); | |
| 1122 } | |
| 1123 OS.MoveToEx(graphics, rect.left, rect.top, null); | |
| 1124 OS.LineTo(graphics, rect.right, rect.top); | |
| 1125 OS.SelectObject(graphics, oldPen); | |
| 1126 OS.DeleteObject(pen); | |
| 1127 break; | |
| 1128 } | |
|
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changeset
|
1129 default: |
| 213 | 1130 } |
| 1131 } | |
| 1132 if (style.strikeout) { | |
| 1133 if (style.strikeoutColor !is null) { | |
| 1134 colorRefStrikeout = style.strikeoutColor.handle; | |
| 1135 } | |
| 1136 if (brushUnderline !is 0 && colorRefStrikeout is colorRefUnderline) { | |
| 1137 brushStrikeout = brushUnderline; | |
| 1138 } else { | |
| 1139 brushStrikeout = cast(int) OS.CreateSolidBrush(colorRefStrikeout); | |
| 1140 } | |
| 1141 OS.SetRect(&rect, runX, strikeoutY, runX + run.width, strikeoutY + run.strikeoutThickness); | |
| 1142 if (clipRect !is null) { | |
| 1143 rect.left = Math.max(rect.left, clipRect.left); | |
| 1144 rect.right = Math.min(rect.right, clipRect.right); | |
| 1145 } | |
| 1146 OS.FillRect(graphics, &rect, cast(void*)brushStrikeout); | |
| 1147 } | |
| 1148 if (brushUnderline !is 0) OS.DeleteObject(cast(void*)brushUnderline); | |
| 1149 if (brushStrikeout !is 0 && brushStrikeout !is brushUnderline) OS.DeleteObject(cast(void*)brushStrikeout); | |
| 1150 } | |
| 1151 } | |
| 1152 | |
| 1153 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) { | |
| 1154 StyleItem run = line[index]; | |
| 1155 TextStyle style = run.style; | |
| 1156 if (style is null) return null; | |
| 1157 if (style.borderStyle is DWT.NONE) return null; | |
| 1158 if (rect !is null) { | |
| 1159 if (clipRect is null) { | |
| 1160 clipRect = new RECT (); | |
| 1161 OS.SetRect(clipRect, -1, rect.top, -1, rect.bottom); | |
| 1162 } | |
| 1163 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1164 if (run.start <= selectionStart && selectionStart <= run.start + run.length) { | |
| 1165 if (run.analysis.fRTL ^ isRTL) { | |
| 1166 clipRect.right = rect.left; | |
| 1167 } else { | |
| 1168 clipRect.left = rect.left; | |
| 1169 } | |
| 1170 } | |
| 1171 if (run.start <= selectionEnd && selectionEnd <= run.start + run.length) { | |
| 1172 if (run.analysis.fRTL ^ isRTL) { | |
| 1173 clipRect.left = rect.right; | |
| 1174 } else { | |
| 1175 clipRect.right = rect.right; | |
| 1176 } | |
| 1177 } | |
| 1178 } | |
| 1179 if (index + 1 >= line.length || !style.isAdherentBorder(line[index + 1].style)) { | |
| 1180 int left = run.x; | |
| 1181 for (int i = index; i > 0 && style.isAdherentBorder(line[i - 1].style); i--) { | |
| 1182 left = line[i - 1].x; | |
| 1183 } | |
| 1184 if (advance) { | |
| 1185 auto brush = color; | |
| 1186 int customColor = -1; | |
| 1187 if (style.borderColor !is null) { | |
| 1188 customColor = style.borderColor.handle; | |
| 1189 } else { | |
| 1190 if (style.foreground !is null) { | |
| 1191 customColor = style.foreground.handle; | |
| 1192 } | |
| 1193 if (fullSelection && clipRect is null) { | |
| 1194 customColor = -1; | |
| 1195 brush = selectionColor; | |
| 1196 } | |
| 1197 } | |
| 1198 if (customColor !is -1) { | |
| 1199 int argb = ((alpha & 0xFF) << 24) | ((customColor >> 16) & 0xFF) | (customColor & 0xFF00) | ((customColor & 0xFF) << 16); | |
| 1200 auto gdiColor = Gdip.Color_new(argb); | |
| 1201 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1202 Gdip.Color_delete(gdiColor); | |
| 1203 } | |
| 1204 int lineWidth = 1; | |
| 1205 int lineStyle = Gdip.DashStyleSolid; | |
| 1206 switch (style.borderStyle) { | |
| 1207 case DWT.BORDER_SOLID: break; | |
| 1208 case DWT.BORDER_DASH: lineStyle = Gdip.DashStyleDash; break; | |
| 1209 case DWT.BORDER_DOT: lineStyle = Gdip.DashStyleDot; break; | |
|
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|
1210 default: |
| 213 | 1211 } |
| 1212 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, lineWidth); | |
| 1213 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1214 float gdipXOffset = 0.5f, gdipYOffset = 0.5f; | |
| 1215 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, gdipXOffset, gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1216 if (style.borderColor is null && clipRect !is null) { | |
| 1217 int gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1218 if (clipRect.left is -1) clipRect.left = 0; | |
| 1219 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1220 Gdip.Rect gdipRect; | |
| 1221 gdipRect.X = clipRect.left; | |
| 1222 gdipRect.Y = clipRect.top; | |
| 1223 gdipRect.Width = clipRect.right - clipRect.left; | |
| 1224 gdipRect.Height = clipRect.bottom - clipRect.top; | |
| 1225 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeExclude); | |
| 1226 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1227 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1228 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1229 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1230 auto selPen = Gdip.Pen_new(cast(Gdip.Brush)selectionColor, lineWidth); | |
| 1231 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1232 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, selPen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1233 Gdip.Pen_delete(selPen); | |
| 1234 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1235 } else { | |
| 1236 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1237 } | |
| 1238 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, -gdipXOffset, -gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1239 Gdip.Pen_delete(pen); | |
| 1240 if (customColor !is -1) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1241 } else { | |
| 1242 if (style.borderColor !is null) { | |
| 1243 color = cast(void*)style.borderColor.handle; | |
| 1244 } else { | |
| 1245 if (style.foreground !is null) { | |
| 1246 color = cast(void*)style.foreground.handle; | |
| 1247 } | |
| 1248 if (fullSelection && clipRect is null) { | |
| 1249 color = selectionColor; | |
| 1250 } | |
| 1251 } | |
| 1252 int lineWidth = 1; | |
| 1253 int lineStyle = OS.PS_SOLID; | |
| 1254 switch (style.borderStyle) { | |
| 1255 case DWT.BORDER_SOLID: break; | |
| 1256 case DWT.BORDER_DASH: lineStyle = OS.PS_DASH; break; | |
| 1257 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
|
1258 default: |
| 213 | 1259 } |
| 1260 LOGBRUSH logBrush; | |
| 1261 logBrush.lbStyle = OS.BS_SOLID; | |
| 1262 logBrush.lbColor = cast(uint)color; | |
| 1263 auto newPen = OS.ExtCreatePen(lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1264 auto oldPen = OS.SelectObject(graphics, newPen); | |
| 1265 auto oldBrush = OS.SelectObject(graphics, OS.GetStockObject(OS.NULL_BRUSH)); | |
| 1266 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1267 if (style.borderColor is null && clipRect !is null && color !is selectionColor) { | |
| 1268 int state = OS.SaveDC(graphics); | |
| 1269 if (clipRect.left is -1) clipRect.left = 0; | |
| 1270 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1271 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1272 logBrush.lbColor = cast(uint)selectionColor; | |
| 1273 auto selPen = OS.ExtCreatePen (lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1274 OS.SelectObject(graphics, selPen); | |
| 1275 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1276 OS.RestoreDC(graphics, state); | |
| 1277 OS.SelectObject(graphics, newPen); | |
| 1278 OS.DeleteObject(selPen); | |
| 1279 } | |
| 1280 OS.SelectObject(graphics, oldBrush); | |
| 1281 OS.SelectObject(graphics, oldPen); | |
| 1282 OS.DeleteObject(newPen); | |
| 1283 } | |
| 1284 return null; | |
| 1285 } | |
| 1286 return clipRect; | |
| 1287 } | |
| 1288 | |
| 1289 int[] computePolyline(int left, int top, int right, int bottom) { | |
| 1290 int height = bottom - top; // can be any number | |
| 1291 int width = 2 * height; // must be even | |
| 1292 int peaks = Compatibility.ceil(right - left, width); | |
| 1293 if (peaks is 0 && right - left > 2) { | |
| 1294 peaks = 1; | |
| 1295 } | |
| 1296 int length_ = ((2 * peaks) + 1) * 2; | |
| 1297 if (length_ < 0) return new int[0]; | |
| 1298 | |
| 1299 int[] coordinates = new int[length_]; | |
| 1300 for (int i = 0; i < peaks; i++) { | |
| 1301 int index = 4 * i; | |
| 1302 coordinates[index] = left + (width * i); | |
| 1303 coordinates[index+1] = bottom; | |
| 1304 coordinates[index+2] = coordinates[index] + width / 2; | |
| 1305 coordinates[index+3] = top; | |
| 1306 } | |
| 1307 coordinates[length_-2] = left + (width * peaks); | |
| 1308 coordinates[length_-1] = bottom; | |
| 1309 return coordinates; | |
| 1310 } | |
| 1311 | |
| 29 | 1312 void freeRuns () { |
| 1313 if (allRuns is null) return; | |
| 1314 for (int i=0; i<allRuns.length; i++) { | |
| 1315 StyleItem run = allRuns[i]; | |
| 1316 run.free(); | |
| 1317 } | |
| 1318 allRuns = null; | |
| 1319 runs = null; | |
| 1320 segmentsText = null; | |
| 1321 } | |
| 1322 | |
| 1323 /** | |
| 1324 * Returns the receiver's horizontal text alignment, which will be one | |
| 1325 * of <code>DWT.LEFT</code>, <code>DWT.CENTER</code> or | |
| 1326 * <code>DWT.RIGHT</code>. | |
| 1327 * | |
| 1328 * @return the alignment used to positioned text horizontally | |
| 1329 * | |
| 1330 * @exception DWTException <ul> | |
| 1331 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1332 * </ul> | |
| 1333 */ | |
| 1334 public int getAlignment () { | |
| 1335 checkLayout(); | |
| 1336 return alignment; | |
| 1337 } | |
| 1338 | |
| 1339 /** | |
| 1340 * Returns the ascent of the receiver. | |
| 1341 * | |
| 1342 * @return the ascent | |
| 1343 * | |
| 1344 * @exception DWTException <ul> | |
| 1345 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1346 * </ul> | |
| 1347 * | |
| 1348 * @see #getDescent() | |
| 1349 * @see #setDescent(int) | |
| 1350 * @see #setAscent(int) | |
| 1351 * @see #getLineMetrics(int) | |
| 1352 */ | |
| 1353 public int getAscent () { | |
| 1354 checkLayout(); | |
| 1355 return ascent; | |
| 1356 } | |
| 1357 | |
| 1358 /** | |
| 213 | 1359 * Returns the bounds of the receiver. The width returned is either the |
| 1360 * width of the longest line or the width set using {@link TextLayout#setWidth(int)}. | |
| 1361 * To obtain the text bounds of a line use {@link TextLayout#getLineBounds(int)}. | |
| 29 | 1362 * |
| 1363 * @return the bounds of the receiver | |
| 1364 * | |
| 1365 * @exception DWTException <ul> | |
| 1366 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1367 * </ul> | |
| 213 | 1368 * |
| 1369 * @see #setWidth(int) | |
| 1370 * @see #getLineBounds(int) | |
| 29 | 1371 */ |
| 1372 public Rectangle getBounds () { | |
| 1373 checkLayout(); | |
| 1374 computeRuns(null); | |
| 1375 int width = 0; | |
| 1376 if (wrapWidth !is -1) { | |
| 1377 width = wrapWidth; | |
| 1378 } else { | |
| 1379 for (int line=0; line<runs.length; line++) { | |
| 1380 width = Math.max(width, lineWidth[line] + getLineIndent(line)); | |
| 1381 } | |
| 1382 } | |
| 1383 return new Rectangle (0, 0, width, lineY[lineY.length - 1]); | |
| 1384 } | |
| 1385 | |
| 1386 /** | |
| 1387 * Returns the bounds for the specified range of characters. The | |
| 1388 * bounds is the smallest rectangle that encompasses all characters | |
| 1389 * in the range. The start and end offsets are inclusive and will be | |
| 1390 * clamped if out of range. | |
| 1391 * | |
| 1392 * @param start the start offset | |
| 1393 * @param end the end offset | |
| 1394 * @return the bounds of the character range | |
| 1395 * | |
| 1396 * @exception DWTException <ul> | |
| 1397 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1398 * </ul> | |
| 1399 */ | |
| 1400 public Rectangle getBounds (int start, int end) { | |
| 1401 checkLayout(); | |
| 1402 computeRuns(null); | |
| 227 | 1403 int length = text.length; |
| 1404 if (length is 0) return new Rectangle(0, 0, 0, 0); | |
| 29 | 1405 if (start > end) return new Rectangle(0, 0, 0, 0); |
| 227 | 1406 start = Math.min(Math.max(0, start), length - 1); |
| 1407 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 1408 start = translateOffset(start); |
| 1409 end = translateOffset(end); | |
| 1410 int left = 0x7fffffff, right = 0; | |
| 1411 int top = 0x7fffffff, bottom = 0; | |
| 1412 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1413 for (int i = 0; i < allRuns.length - 1; i++) { | |
| 1414 StyleItem run = allRuns[i]; | |
| 1415 int runEnd = run.start + run.length; | |
| 1416 if (runEnd <= start) continue; | |
| 1417 if (run.start > end) break; | |
| 1418 int runLead = run.x; | |
| 1419 int runTrail = run.x + run.width; | |
| 1420 if (run.start <= start && start < runEnd) { | |
| 1421 int cx = 0; | |
| 1422 if (run.style !is null && run.style.metrics !is null) { | |
| 1423 GlyphMetrics metrics = run.style.metrics; | |
| 1424 cx = metrics.width * (start - run.start); | |
| 1425 } else if (!run.tab) { | |
| 30 | 1426 int piX; |
| 1427 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1428 OS.ScriptCPtoX(start - run.start, false, run.length, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1429 cx = isRTL ? run.width - piX : piX; | |
| 29 | 1430 } |
| 1431 if (run.analysis.fRTL ^ isRTL) { | |
| 1432 runTrail = run.x + cx; | |
| 1433 } else { | |
| 1434 runLead = run.x + cx; | |
| 1435 } | |
| 1436 } | |
| 1437 if (run.start <= end && end < runEnd) { | |
| 1438 int cx = run.width; | |
| 1439 if (run.style !is null && run.style.metrics !is null) { | |
| 1440 GlyphMetrics metrics = run.style.metrics; | |
| 1441 cx = metrics.width * (end - run.start + 1); | |
| 1442 } else if (!run.tab) { | |
| 30 | 1443 int piX; |
| 1444 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1445 OS.ScriptCPtoX(end - run.start, true, run.length, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1446 cx = isRTL ? run.width - piX : piX; | |
| 29 | 1447 } |
| 1448 if (run.analysis.fRTL ^ isRTL) { | |
| 1449 runLead = run.x + cx; | |
| 1450 } else { | |
| 1451 runTrail = run.x + cx; | |
| 1452 } | |
| 1453 } | |
| 1454 int lineIndex = 0; | |
| 1455 while (lineIndex < runs.length && lineOffset[lineIndex + 1] <= run.start) { | |
| 1456 lineIndex++; | |
| 1457 } | |
| 1458 left = Math.min(left, runLead); | |
| 1459 right = Math.max(right, runTrail); | |
| 1460 top = Math.min(top, lineY[lineIndex]); | |
| 1461 bottom = Math.max(bottom, lineY[lineIndex + 1] - lineSpacing); | |
| 1462 } | |
| 1463 return new Rectangle(left, top, right - left, bottom - top); | |
| 1464 } | |
| 1465 | |
| 1466 /** | |
| 1467 * Returns the descent of the receiver. | |
| 1468 * | |
| 1469 * @return the descent | |
| 1470 * | |
| 1471 * @exception DWTException <ul> | |
| 1472 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1473 * </ul> | |
| 1474 * | |
| 1475 * @see #getAscent() | |
| 1476 * @see #setAscent(int) | |
| 1477 * @see #setDescent(int) | |
| 1478 * @see #getLineMetrics(int) | |
| 1479 */ | |
| 1480 public int getDescent () { | |
| 1481 checkLayout(); | |
| 1482 return descent; | |
| 1483 } | |
| 1484 | |
| 1485 /** | |
| 1486 * Returns the default font currently being used by the receiver | |
| 1487 * to draw and measure text. | |
| 1488 * | |
| 1489 * @return the receiver's font | |
| 1490 * | |
| 1491 * @exception DWTException <ul> | |
| 1492 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1493 * </ul> | |
| 1494 */ | |
| 1495 public Font getFont () { | |
| 1496 checkLayout(); | |
| 1497 return font; | |
| 1498 } | |
| 1499 | |
| 1500 /** | |
| 1501 * Returns the receiver's indent. | |
| 1502 * | |
| 1503 * @return the receiver's indent | |
| 1504 * | |
| 1505 * @exception DWTException <ul> | |
| 1506 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1507 * </ul> | |
| 1508 * | |
| 1509 * @since 3.2 | |
| 1510 */ | |
| 1511 public int getIndent () { | |
| 1512 checkLayout(); | |
| 1513 return indent; | |
| 1514 } | |
| 1515 | |
| 1516 /** | |
| 1517 * Returns the receiver's justification. | |
| 1518 * | |
| 1519 * @return the receiver's justification | |
| 1520 * | |
| 1521 * @exception DWTException <ul> | |
| 1522 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1523 * </ul> | |
| 1524 * | |
| 1525 * @since 3.2 | |
| 1526 */ | |
| 1527 public bool getJustify () { | |
| 1528 checkLayout(); | |
| 1529 return justify; | |
| 1530 } | |
| 1531 | |
| 30 | 1532 HFONT getItemFont (StyleItem item) { |
| 1533 if (item.fallbackFont !is null) return cast(HFONT) item.fallbackFont; | |
| 29 | 1534 if (item.style !is null && item.style.font !is null) { |
| 1535 return item.style.font.handle; | |
| 1536 } | |
| 1537 if (this.font !is null) { | |
| 1538 return this.font.handle; | |
| 1539 } | |
| 213 | 1540 return device.systemFont.handle; |
| 29 | 1541 } |
| 1542 | |
| 1543 /** | |
| 1544 * Returns the embedding level for the specified character offset. The | |
| 1545 * embedding level is usually used to determine the directionality of a | |
| 1546 * character in bidirectional text. | |
| 1547 * | |
| 1548 * @param offset the character offset | |
| 1549 * @return the embedding level | |
| 1550 * | |
| 1551 * @exception IllegalArgumentException <ul> | |
| 1552 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1553 * </ul> | |
| 1554 * @exception DWTException <ul> | |
| 1555 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1556 */ | |
| 1557 public int getLevel (int offset) { | |
| 1558 checkLayout(); | |
| 1559 computeRuns(null); | |
| 227 | 1560 int length = text.length; |
| 1561 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1562 offset = translateOffset(offset); |
| 1563 for (int i=1; i<allRuns.length; i++) { | |
| 1564 if (allRuns[i].start > offset) { | |
| 1565 return allRuns[i - 1].analysis.s.uBidiLevel; | |
| 1566 } | |
| 1567 } | |
| 1568 return (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? 1 : 0; | |
| 1569 } | |
| 1570 | |
| 1571 /** | |
| 1572 * Returns the bounds of the line for the specified line index. | |
| 1573 * | |
| 1574 * @param lineIndex the line index | |
| 1575 * @return the line bounds | |
| 1576 * | |
| 1577 * @exception IllegalArgumentException <ul> | |
| 1578 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1579 * </ul> | |
| 1580 * @exception DWTException <ul> | |
| 1581 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1582 * </ul> | |
| 1583 */ | |
| 1584 public Rectangle getLineBounds(int lineIndex) { | |
| 1585 checkLayout(); | |
| 1586 computeRuns(null); | |
| 1587 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1588 int x = getLineIndent(lineIndex); | |
| 1589 int y = lineY[lineIndex]; | |
| 1590 int width = lineWidth[lineIndex]; | |
| 1591 int height = lineY[lineIndex + 1] - y - lineSpacing; | |
| 1592 return new Rectangle (x, y, width, height); | |
| 1593 } | |
| 1594 | |
| 1595 /** | |
| 1596 * Returns the receiver's line count. This includes lines caused | |
| 1597 * by wrapping. | |
| 1598 * | |
| 1599 * @return the line count | |
| 1600 * | |
| 1601 * @exception DWTException <ul> | |
| 1602 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1603 * </ul> | |
| 1604 */ | |
| 1605 public int getLineCount () { | |
| 1606 checkLayout(); | |
| 1607 computeRuns(null); | |
| 1608 return runs.length; | |
| 1609 } | |
| 1610 | |
| 1611 int getLineIndent (int lineIndex) { | |
| 1612 int lineIndent = 0; | |
| 1613 if (lineIndex is 0) { | |
| 1614 lineIndent = indent; | |
| 1615 } else { | |
| 1616 StyleItem[] previousLine = runs[lineIndex - 1]; | |
| 1617 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 1618 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 1619 lineIndent = indent; | |
| 1620 } | |
| 1621 } | |
| 1622 if (wrapWidth !is -1) { | |
| 1623 bool partialLine = true; | |
| 1624 if (justify) { | |
| 1625 StyleItem[] lineRun = runs[lineIndex]; | |
| 1626 if (lineRun[lineRun.length - 1].softBreak) { | |
| 1627 partialLine = false; | |
| 1628 } | |
| 1629 } | |
| 1630 if (partialLine) { | |
| 1631 int lineWidth = this.lineWidth[lineIndex] + lineIndent; | |
| 1632 switch (alignment) { | |
| 1633 case DWT.CENTER: lineIndent += (wrapWidth - lineWidth) / 2; break; | |
| 1634 case DWT.RIGHT: lineIndent += wrapWidth - lineWidth; break; | |
| 81 | 1635 default: |
| 29 | 1636 } |
| 1637 } | |
| 1638 } | |
| 1639 return lineIndent; | |
| 1640 } | |
| 1641 | |
| 1642 /** | |
| 1643 * Returns the index of the line that contains the specified | |
| 1644 * character offset. | |
| 1645 * | |
| 1646 * @param offset the character offset | |
| 1647 * @return the line index | |
| 1648 * | |
| 1649 * @exception IllegalArgumentException <ul> | |
| 1650 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1651 * </ul> | |
| 1652 * @exception DWTException <ul> | |
| 1653 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1654 * </ul> | |
| 1655 */ | |
| 1656 public int getLineIndex (int offset) { | |
| 1657 checkLayout(); | |
| 1658 computeRuns(null); | |
| 227 | 1659 int length = text.length; |
| 1660 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1661 offset = translateOffset(offset); |
| 1662 for (int line=0; line<runs.length; line++) { | |
| 1663 if (lineOffset[line + 1] > offset) { | |
| 1664 return line; | |
| 1665 } | |
| 1666 } | |
| 1667 return runs.length - 1; | |
| 1668 } | |
| 1669 | |
| 1670 /** | |
| 1671 * Returns the font metrics for the specified line index. | |
| 1672 * | |
| 1673 * @param lineIndex the line index | |
| 1674 * @return the font metrics | |
| 1675 * | |
| 1676 * @exception IllegalArgumentException <ul> | |
| 1677 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1678 * </ul> | |
| 1679 * @exception DWTException <ul> | |
| 1680 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1681 * </ul> | |
| 1682 */ | |
| 1683 public FontMetrics getLineMetrics (int lineIndex) { | |
| 1684 checkLayout(); | |
| 1685 computeRuns(null); | |
| 1686 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 30 | 1687 auto hDC = device.internal_new_GC(null); |
| 1688 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 1689 TEXTMETRIC lptm; |
| 213 | 1690 OS.SelectObject(srcHdc, font !is null ? font.handle : device.systemFont.handle); |
| 29 | 1691 OS.GetTextMetrics(srcHdc, &lptm); |
| 1692 OS.DeleteDC(srcHdc); | |
| 1693 device.internal_dispose_GC(hDC, null); | |
| 1694 | |
| 1695 int ascent = Math.max(lptm.tmAscent, this.ascent); | |
| 1696 int descent = Math.max(lptm.tmDescent, this.descent); | |
| 1697 int leading = lptm.tmInternalLeading; | |
| 30 | 1698 if (text.length !is 0) { |
| 29 | 1699 StyleItem[] lineRuns = runs[lineIndex]; |
| 1700 for (int i = 0; i<lineRuns.length; i++) { | |
| 1701 StyleItem run = lineRuns[i]; | |
| 1702 if (run.ascent > ascent) { | |
| 1703 ascent = run.ascent; | |
| 1704 leading = run.leading; | |
| 1705 } | |
| 1706 descent = Math.max(descent, run.descent); | |
| 1707 } | |
| 1708 } | |
| 1709 lptm.tmAscent = ascent; | |
| 1710 lptm.tmDescent = descent; | |
| 1711 lptm.tmHeight = ascent + descent; | |
| 1712 lptm.tmInternalLeading = leading; | |
| 1713 lptm.tmAveCharWidth = 0; | |
| 30 | 1714 return FontMetrics.win32_new(&lptm); |
| 29 | 1715 } |
| 1716 | |
| 1717 /** | |
| 1718 * Returns the line offsets. Each value in the array is the | |
| 1719 * offset for the first character in a line except for the last | |
| 1720 * value, which contains the length of the text. | |
| 1721 * | |
| 1722 * @return the line offsets | |
| 1723 * | |
| 1724 * @exception DWTException <ul> | |
| 1725 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1726 * </ul> | |
| 1727 */ | |
| 1728 public int[] getLineOffsets () { | |
| 1729 checkLayout(); | |
| 1730 computeRuns(null); | |
| 1731 int[] offsets = new int[lineOffset.length]; | |
| 1732 for (int i = 0; i < offsets.length; i++) { | |
| 1733 offsets[i] = untranslateOffset(lineOffset[i]); | |
| 1734 } | |
| 1735 return offsets; | |
| 1736 } | |
| 1737 | |
| 1738 /** | |
| 1739 * Returns the location for the specified character offset. The | |
| 1740 * <code>trailing</code> argument indicates whether the offset | |
| 1741 * corresponds to the leading or trailing edge of the cluster. | |
| 1742 * | |
| 1743 * @param offset the character offset | |
| 1744 * @param trailing the trailing flag | |
| 1745 * @return the location of the character offset | |
| 1746 * | |
| 1747 * @exception DWTException <ul> | |
| 1748 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1749 * </ul> | |
| 1750 * | |
| 1751 * @see #getOffset(Point, int[]) | |
| 1752 * @see #getOffset(int, int, int[]) | |
| 1753 */ | |
| 1754 public Point getLocation (int offset, bool trailing) { | |
| 1755 checkLayout(); | |
| 1756 computeRuns(null); | |
| 227 | 1757 int length = text.length; |
| 1758 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1759 length = segmentsText.length; | |
| 29 | 1760 offset = translateOffset(offset); |
| 1761 int line; | |
| 1762 for (line=0; line<runs.length; line++) { | |
| 1763 if (lineOffset[line + 1] > offset) break; | |
| 1764 } | |
| 1765 line = Math.min(line, runs.length - 1); | |
| 227 | 1766 if (offset is length) { |
| 213 | 1767 return new Point(getLineIndent(line) + lineWidth[line], lineY[line]); |
| 1768 } | |
| 1769 int low = -1; | |
| 1770 int high = allRuns.length; | |
| 1771 while (high - low > 1) { | |
| 1772 int index = ((high + low) / 2); | |
| 1773 StyleItem run = allRuns[index]; | |
| 1774 if (run.start > offset) { | |
| 1775 high = index; | |
| 1776 } else if (run.start + run.length <= offset) { | |
| 1777 low = index; | |
| 1778 } else { | |
| 1779 int width; | |
| 1780 if (run.style !is null && run.style.metrics !is null) { | |
| 1781 GlyphMetrics metrics = run.style.metrics; | |
| 1782 width = metrics.width * (offset - run.start + (trailing ? 1 : 0)); | |
| 1783 } else if (run.tab) { | |
| 227 | 1784 width = (trailing || (offset is length)) ? run.width : 0; |
| 213 | 1785 } else { |
| 1786 int runOffset = offset - run.start; | |
| 1787 int cChars = run.length; | |
| 1788 int gGlyphs = run.glyphCount; | |
| 1789 int piX; | |
| 1790 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1791 OS.ScriptCPtoX(runOffset, trailing, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1792 width = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 1793 } |
| 213 | 1794 return new Point(run.x + width, lineY[line]); |
| 29 | 1795 } |
| 1796 } | |
| 213 | 1797 return new Point(0, 0); |
| 29 | 1798 } |
| 1799 | |
| 1800 /** | |
| 1801 * Returns the next offset for the specified offset and movement | |
| 1802 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 1803 * <code>DWT.MOVEMENT_CLUSTER</code>, <code>DWT.MOVEMENT_WORD</code>, | |
| 1804 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 1805 * | |
| 1806 * @param offset the start offset | |
| 1807 * @param movement the movement type | |
| 1808 * @return the next offset | |
| 1809 * | |
| 1810 * @exception IllegalArgumentException <ul> | |
| 1811 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 1812 * </ul> | |
| 1813 * @exception DWTException <ul> | |
| 1814 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1815 * </ul> | |
| 1816 * | |
| 1817 * @see #getPreviousOffset(int, int) | |
| 1818 */ | |
| 1819 public int getNextOffset (int offset, int movement) { | |
| 1820 checkLayout(); | |
| 1821 return _getOffset (offset, movement, true); | |
| 1822 } | |
| 1823 | |
| 1824 int _getOffset(int offset, int movement, bool forward) { | |
| 1825 computeRuns(null); | |
| 227 | 1826 int length = text.length; |
| 1827 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1828 if (forward && offset is length) return length; | |
| 29 | 1829 if (!forward && offset is 0) return 0; |
| 1830 int step = forward ? 1 : -1; | |
| 1831 if ((movement & DWT.MOVEMENT_CHAR) !is 0) return offset + step; | |
| 227 | 1832 length = segmentsText.length; |
| 29 | 1833 offset = translateOffset(offset); |
| 227 | 1834 SCRIPT_LOGATTR* logAttr = new SCRIPT_LOGATTR(); |
| 1835 SCRIPT_PROPERTIES* properties = new SCRIPT_PROPERTIES(); | |
| 29 | 1836 int i = forward ? 0 : allRuns.length - 1; |
| 1837 offset = validadeOffset(offset, step); | |
| 1838 do { | |
| 1839 StyleItem run = allRuns[i]; | |
| 1840 if (run.start <= offset && offset < run.start + run.length) { | |
| 1841 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1842 if (run.tab) return untranslateOffset(run.start); | |
| 227 | 1843 OS.MoveMemory(properties, device.scripts[run.analysis.eScript], SCRIPT_PROPERTIES.sizeof); |
| 29 | 1844 bool isComplex = properties.fNeedsCaretInfo || properties.fNeedsWordBreaking; |
| 1845 if (isComplex) breakRun(run); | |
| 1846 while (run.start <= offset && offset < run.start + run.length) { | |
| 1847 if (isComplex) { | |
| 227 | 1848 OS.MoveMemory(logAttr, run.psla + (offset - run.start), SCRIPT_LOGATTR.sizeof); |
| 29 | 1849 } |
| 1850 switch (movement) { | |
| 1851 case DWT.MOVEMENT_CLUSTER: { | |
| 1852 if (properties.fNeedsCaretInfo) { | |
| 1853 if (!logAttr.fInvalid && logAttr.fCharStop) return untranslateOffset(offset); | |
| 1854 } else { | |
| 1855 return untranslateOffset(offset); | |
| 1856 } | |
| 1857 break; | |
| 1858 } | |
| 1859 case DWT.MOVEMENT_WORD_START: | |
| 1860 case DWT.MOVEMENT_WORD: { | |
| 1861 if (properties.fNeedsWordBreaking) { | |
| 1862 if (!logAttr.fInvalid && logAttr.fWordStop) return untranslateOffset(offset); | |
| 1863 } else { | |
| 1864 if (offset > 0) { | |
| 1865 bool letterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1866 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1867 if (letterOrDigit !is previousLetterOrDigit || !letterOrDigit) { | |
| 1868 if (!Compatibility.isWhitespace(segmentsText.charAt(offset))) { | |
| 1869 return untranslateOffset(offset); | |
| 1870 } | |
| 1871 } | |
| 1872 } | |
| 1873 } | |
| 1874 break; | |
| 1875 } | |
| 1876 case DWT.MOVEMENT_WORD_END: { | |
| 1877 if (offset > 0) { | |
| 1878 bool isLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1879 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1880 if (!isLetterOrDigit && previousLetterOrDigit) { | |
| 1881 return untranslateOffset(offset); | |
| 1882 } | |
| 1883 } | |
| 1884 break; | |
| 1885 } | |
| 81 | 1886 default: |
| 29 | 1887 } |
| 1888 offset = validadeOffset(offset, step); | |
| 1889 } | |
| 1890 } | |
| 1891 i += step; | |
| 227 | 1892 } while (0 <= i && i < allRuns.length - 1 && 0 <= offset && offset < length); |
| 30 | 1893 return forward ? text.length : 0; |
| 29 | 1894 } |
| 1895 | |
| 1896 /** | |
| 1897 * Returns the character offset for the specified point. | |
| 1898 * For a typical character, the trailing argument will be filled in to | |
| 1899 * indicate whether the point is closer to the leading edge (0) or | |
| 1900 * the trailing edge (1). When the point is over a cluster composed | |
| 1901 * of multiple characters, the trailing argument will be filled with the | |
| 1902 * position of the character in the cluster that is closest to | |
| 1903 * the point. | |
| 1904 * | |
| 1905 * @param point the point | |
| 1906 * @param trailing the trailing buffer | |
| 1907 * @return the character offset | |
| 1908 * | |
| 1909 * @exception IllegalArgumentException <ul> | |
| 1910 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1911 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> | |
| 1912 * </ul> | |
| 1913 * @exception DWTException <ul> | |
| 1914 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1915 * </ul> | |
| 1916 * | |
| 1917 * @see #getLocation(int, bool) | |
| 1918 */ | |
| 1919 public int getOffset (Point point, int[] trailing) { | |
| 1920 checkLayout(); | |
| 1921 if (point is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1922 return getOffset (point.x, point.y, trailing) ; | |
| 1923 } | |
| 1924 | |
| 1925 /** | |
| 1926 * Returns the character offset for the specified point. | |
| 1927 * For a typical character, the trailing argument will be filled in to | |
| 1928 * indicate whether the point is closer to the leading edge (0) or | |
| 1929 * the trailing edge (1). When the point is over a cluster composed | |
| 1930 * of multiple characters, the trailing argument will be filled with the | |
| 1931 * position of the character in the cluster that is closest to | |
| 1932 * the point. | |
| 1933 * | |
| 1934 * @param x the x coordinate of the point | |
| 1935 * @param y the y coordinate of the point | |
| 1936 * @param trailing the trailing buffer | |
| 1937 * @return the character offset | |
| 1938 * | |
| 1939 * @exception IllegalArgumentException <ul> | |
| 1940 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1941 * </ul> | |
| 1942 * @exception DWTException <ul> | |
| 1943 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1944 * </ul> | |
| 1945 * | |
| 1946 * @see #getLocation(int, bool) | |
| 1947 */ | |
| 1948 public int getOffset (int x, int y, int[] trailing) { | |
| 1949 checkLayout(); | |
| 1950 computeRuns(null); | |
| 1951 if (trailing !is null && trailing.length < 1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 1952 int line; | |
| 1953 int lineCount = runs.length; | |
| 1954 for (line=0; line<lineCount; line++) { | |
| 1955 if (lineY[line + 1] > y) break; | |
| 1956 } | |
| 1957 line = Math.min(line, runs.length - 1); | |
| 1958 StyleItem[] lineRuns = runs[line]; | |
| 213 | 1959 int lineIndent = getLineIndent(line); |
| 1960 if (x >= lineIndent + lineWidth[line]) x = lineIndent + lineWidth[line] - 1; | |
| 1961 if (x < lineIndent) x = lineIndent; | |
| 1962 int low = -1; | |
| 1963 int high = lineRuns.length; | |
| 1964 while (high - low > 1) { | |
| 1965 int index = ((high + low) / 2); | |
| 1966 StyleItem run = lineRuns[index]; | |
| 1967 if (run.x > x) { | |
| 1968 high = index; | |
| 1969 } else if (run.x + run.width <= x) { | |
| 1970 low = index; | |
| 1971 } else { | |
| 1972 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1973 int xRun = x - run.x; | |
| 29 | 1974 if (run.style !is null && run.style.metrics !is null) { |
| 1975 GlyphMetrics metrics = run.style.metrics; | |
| 1976 if (metrics.width > 0) { | |
| 1977 if (trailing !is null) { | |
| 1978 trailing[0] = (xRun % metrics.width < metrics.width / 2) ? 0 : 1; | |
| 1979 } | |
| 1980 return untranslateOffset(run.start + xRun / metrics.width); | |
| 1981 } | |
| 1982 } | |
| 1983 if (run.tab) { | |
| 213 | 1984 if (trailing !is null) trailing[0] = x < (run.x + run.width / 2) ? 0 : 1; |
| 29 | 1985 return untranslateOffset(run.start); |
| 1986 } | |
| 1987 int cChars = run.length; | |
| 1988 int cGlyphs = run.glyphCount; | |
| 30 | 1989 int piCP; |
| 1990 int piTrailing; | |
| 29 | 1991 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { |
| 1992 xRun = run.width - xRun; | |
| 1993 } | |
| 30 | 1994 int* advances = run.justify !is null ? run.justify : run.advances; |
| 1995 OS.ScriptXtoCP(xRun, cChars, cGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piCP, &piTrailing); | |
| 1996 if (trailing !is null) trailing[0] = piTrailing; | |
| 1997 return untranslateOffset(run.start + piCP); | |
| 29 | 1998 } |
| 1999 } | |
| 2000 if (trailing !is null) trailing[0] = 0; | |
| 2001 return untranslateOffset(lineOffset[line + 1]); | |
| 2002 } | |
| 2003 | |
| 2004 /** | |
| 2005 * Returns the orientation of the receiver. | |
| 2006 * | |
| 2007 * @return the orientation style | |
| 2008 * | |
| 2009 * @exception DWTException <ul> | |
| 2010 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2011 * </ul> | |
| 2012 */ | |
| 2013 public int getOrientation () { | |
| 2014 checkLayout(); | |
| 2015 return orientation; | |
| 2016 } | |
| 2017 | |
| 2018 /** | |
| 2019 * Returns the previous offset for the specified offset and movement | |
| 2020 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 2021 * <code>DWT.MOVEMENT_CLUSTER</code> or <code>DWT.MOVEMENT_WORD</code>, | |
| 2022 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 2023 * | |
| 2024 * @param offset the start offset | |
| 2025 * @param movement the movement type | |
| 2026 * @return the previous offset | |
| 2027 * | |
| 2028 * @exception IllegalArgumentException <ul> | |
| 2029 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 2030 * </ul> | |
| 2031 * @exception DWTException <ul> | |
| 2032 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2033 * </ul> | |
| 2034 * | |
| 2035 * @see #getNextOffset(int, int) | |
| 2036 */ | |
| 2037 public int getPreviousOffset (int offset, int movement) { | |
| 2038 checkLayout(); | |
| 2039 return _getOffset (offset, movement, false); | |
| 2040 } | |
| 2041 | |
| 2042 /** | |
| 2043 * Gets the ranges of text that are associated with a <code>TextStyle</code>. | |
| 2044 * | |
| 2045 * @return the ranges, an array of offsets representing the start and end of each | |
| 2046 * text style. | |
| 2047 * | |
| 2048 * @exception DWTException <ul> | |
| 2049 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2050 * </ul> | |
| 2051 * | |
| 2052 * @see #getStyles() | |
| 2053 * | |
| 2054 * @since 3.2 | |
| 2055 */ | |
| 2056 public int[] getRanges () { | |
| 2057 checkLayout(); | |
| 213 | 2058 int[] result = new int[stylesCount * 2]; |
| 29 | 2059 int count = 0; |
| 213 | 2060 for (int i=0; i<stylesCount - 1; i++) { |
| 29 | 2061 if (styles[i].style !is null) { |
| 2062 result[count++] = styles[i].start; | |
| 2063 result[count++] = styles[i + 1].start - 1; | |
| 2064 } | |
| 2065 } | |
| 2066 if (count !is result.length) { | |
| 2067 int[] newResult = new int[count]; | |
| 2068 System.arraycopy(result, 0, newResult, 0, count); | |
| 2069 result = newResult; | |
| 2070 } | |
| 2071 return result; | |
| 2072 } | |
| 2073 | |
| 2074 /** | |
| 2075 * Returns the text segments offsets of the receiver. | |
| 2076 * | |
| 2077 * @return the text segments offsets | |
| 2078 * | |
| 2079 * @exception DWTException <ul> | |
| 2080 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2081 * </ul> | |
| 2082 */ | |
| 2083 public int[] getSegments () { | |
| 2084 checkLayout(); | |
| 2085 return segments; | |
| 2086 } | |
| 2087 | |
|
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parents:
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diff
changeset
|
2088 String getSegmentsText() { |
| 29 | 2089 if (segments is null) return text; |
| 2090 int nSegments = segments.length; | |
| 2091 if (nSegments <= 1) return text; | |
| 213 | 2092 int length_ = text.length; |
| 2093 if (length_ is 0) return text; | |
| 29 | 2094 if (nSegments is 2) { |
| 213 | 2095 if (segments[0] is 0 && segments[1] is length_) return text; |
| 29 | 2096 } |
| 213 | 2097 char[] oldChars = new char[length_]; |
| 2098 text.getChars(0, length_, oldChars, 0); | |
| 2099 char[] newChars = new char[length_ + nSegments]; | |
| 29 | 2100 int charCount = 0, segmentCount = 0; |
| 30 | 2101 wchar separator = orientation is DWT.RIGHT_TO_LEFT ? RTL_MARK : LTR_MARK; |
| 213 | 2102 while (charCount < length_) { |
| 29 | 2103 if (segmentCount < nSegments && charCount is segments[segmentCount]) { |
| 2104 newChars[charCount + segmentCount++] = separator; | |
| 2105 } else { | |
| 2106 newChars[charCount + segmentCount] = oldChars[charCount++]; | |
| 2107 } | |
| 2108 } | |
| 2109 if (segmentCount < nSegments) { | |
| 2110 segments[segmentCount] = charCount; | |
| 2111 newChars[charCount + segmentCount++] = separator; | |
| 2112 } | |
| 30 | 2113 return newChars[ 0 .. Math.min(charCount + segmentCount, newChars.length)].dup; |
| 29 | 2114 } |
| 2115 | |
| 2116 /** | |
| 2117 * Returns the line spacing of the receiver. | |
| 2118 * | |
| 2119 * @return the line spacing | |
| 2120 * | |
| 2121 * @exception DWTException <ul> | |
| 2122 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2123 * </ul> | |
| 2124 */ | |
| 2125 public int getSpacing () { | |
| 2126 checkLayout(); | |
| 2127 return lineSpacing; | |
| 2128 } | |
| 2129 | |
| 2130 /** | |
| 2131 * Gets the style of the receiver at the specified character offset. | |
| 2132 * | |
| 2133 * @param offset the text offset | |
| 2134 * @return the style or <code>null</code> if not set | |
| 2135 * | |
| 2136 * @exception IllegalArgumentException <ul> | |
| 2137 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 2138 * </ul> | |
| 2139 * @exception DWTException <ul> | |
| 2140 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2141 * </ul> | |
| 2142 */ | |
| 2143 public TextStyle getStyle (int offset) { | |
| 2144 checkLayout(); | |
| 227 | 2145 int length = text.length; |
| 2146 if (!(0 <= offset && offset < length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 213 | 2147 for (int i=1; i<stylesCount; i++) { |
| 29 | 2148 if (styles[i].start > offset) { |
| 2149 return styles[i - 1].style; | |
| 2150 } | |
| 2151 } | |
| 2152 return null; | |
| 2153 } | |
| 2154 | |
| 2155 /** | |
| 2156 * Gets all styles of the receiver. | |
| 2157 * | |
| 2158 * @return the styles | |
| 2159 * | |
| 2160 * @exception DWTException <ul> | |
| 2161 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2162 * </ul> | |
| 2163 * | |
| 2164 * @see #getRanges() | |
| 2165 * | |
| 2166 * @since 3.2 | |
| 2167 */ | |
| 2168 public TextStyle[] getStyles () { | |
| 2169 checkLayout(); | |
| 213 | 2170 TextStyle[] result = new TextStyle[stylesCount]; |
| 29 | 2171 int count = 0; |
| 213 | 2172 for (int i=0; i<stylesCount; i++) { |
| 29 | 2173 if (styles[i].style !is null) { |
| 2174 result[count++] = styles[i].style; | |
| 2175 } | |
| 2176 } | |
| 2177 if (count !is result.length) { | |
| 2178 TextStyle[] newResult = new TextStyle[count]; | |
| 2179 System.arraycopy(result, 0, newResult, 0, count); | |
| 2180 result = newResult; | |
| 2181 } | |
| 2182 return result; | |
| 2183 } | |
| 2184 | |
| 2185 /** | |
| 2186 * Returns the tab list of the receiver. | |
| 2187 * | |
| 2188 * @return the tab list | |
| 2189 * | |
| 2190 * @exception DWTException <ul> | |
| 2191 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2192 * </ul> | |
| 2193 */ | |
| 2194 public int[] getTabs () { | |
| 2195 checkLayout(); | |
| 2196 return tabs; | |
| 2197 } | |
| 2198 | |
| 2199 /** | |
| 2200 * Gets the receiver's text, which will be an empty | |
| 2201 * string if it has never been set. | |
| 2202 * | |
| 2203 * @return the receiver's text | |
| 2204 * | |
| 2205 * @exception DWTException <ul> | |
| 2206 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2207 * </ul> | |
| 2208 */ | |
|
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Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
2209 public String getText () { |
| 29 | 2210 checkLayout(); |
| 2211 return text; | |
| 2212 } | |
| 2213 | |
| 2214 /** | |
| 2215 * Returns the width of the receiver. | |
| 2216 * | |
| 2217 * @return the width | |
| 2218 * | |
| 2219 * @exception DWTException <ul> | |
| 2220 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2221 * </ul> | |
| 2222 */ | |
| 2223 public int getWidth () { | |
| 2224 checkLayout(); | |
| 2225 return wrapWidth; | |
| 2226 } | |
| 2227 | |
| 2228 /** | |
| 2229 * Returns <code>true</code> if the text layout has been disposed, | |
| 2230 * and <code>false</code> otherwise. | |
| 2231 * <p> | |
| 2232 * This method gets the dispose state for the text layout. | |
| 2233 * When a text layout has been disposed, it is an error to | |
| 2234 * invoke any other method using the text layout. | |
| 2235 * </p> | |
| 2236 * | |
| 2237 * @return <code>true</code> when the text layout is disposed and <code>false</code> otherwise | |
| 2238 */ | |
|
48
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Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
31
diff
changeset
|
2239 override public bool isDisposed () { |
| 29 | 2240 return device is null; |
| 2241 } | |
| 2242 | |
| 2243 /* | |
| 2244 * Itemize the receiver text | |
| 2245 */ | |
| 2246 StyleItem[] itemize () { | |
| 2247 segmentsText = getSegmentsText(); | |
| 227 | 2248 int length = segmentsText.length; |
| 30 | 2249 SCRIPT_CONTROL scriptControl; |
| 2250 SCRIPT_STATE scriptState; | |
| 227 | 2251 final int MAX_ITEM = length + 1; |
| 29 | 2252 |
| 2253 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 2254 scriptState.uBidiLevel = 1; | |
| 2255 scriptState.fArabicNumContext = true; | |
| 30 | 2256 SCRIPT_DIGITSUBSTITUTE psds; |
| 2257 OS.ScriptRecordDigitSubstitution(OS.LOCALE_USER_DEFAULT, &psds); | |
| 2258 OS.ScriptApplyDigitSubstitution(&psds, &scriptControl, &scriptState); | |
| 29 | 2259 } |
| 2260 | |
| 30 | 2261 auto hHeap = OS.GetProcessHeap(); |
| 2262 auto pItems = cast(SCRIPT_ITEM*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, MAX_ITEM * SCRIPT_ITEM.sizeof); | |
| 2263 if (pItems is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2264 int pcItems; | |
| 2265 wchar[] chars = StrToWCHARs( segmentsText ); | |
| 229 | 2266 Trace.formatln( "{} {}: segmentsText='{}' chars='{}'", __FILE__,__LINE__, segmentsText, chars ); |
| 30 | 2267 OS.ScriptItemize(chars.ptr, chars.length, MAX_ITEM, &scriptControl, &scriptState, pItems, &pcItems); |
| 29 | 2268 // if (hr is E_OUTOFMEMORY) //TODO handle it |
| 2269 | |
| 229 | 2270 // Translate the utf16 indices to utf8 indices |
| 2271 Trace.formatln( "{} {}: pcItems={} chars.length={} segmentsText.length={}", __FILE__,__LINE__,pcItems, chars.length, segmentsText.length ); | |
| 2272 int utf8idx = 0; | |
| 2273 SCRIPT_ITEM* si = pItems; | |
| 2274 foreach( uint utf16idx, char c; chars ){ | |
| 2275 Trace.formatln( "{} {}: utf8idx={} utf16idx={} si.iCharPos={}", __FILE__,__LINE__,utf8idx, utf16idx, si.iCharPos ); | |
| 2276 if( si.iCharPos is utf16idx ){ | |
| 2277 si.iCharPos = utf8idx; | |
| 2278 si++; | |
| 2279 } | |
| 2280 utf8idx++; | |
| 2281 } | |
| 2282 | |
| 30 | 2283 StyleItem[] runs = merge(pItems, pcItems); |
| 29 | 2284 OS.HeapFree(hHeap, 0, pItems); |
| 2285 return runs; | |
| 2286 } | |
| 2287 | |
| 2288 /* | |
| 2289 * Merge styles ranges and script items | |
| 2290 */ | |
| 30 | 2291 StyleItem[] merge (SCRIPT_ITEM* items, int itemCount) { |
| 213 | 2292 if (styles.length > stylesCount) { |
| 2293 StyleItem[] newStyles = new StyleItem[stylesCount]; | |
| 2294 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2295 styles = newStyles; | |
| 2296 } | |
| 30 | 2297 int count = 0, start = 0, end = segmentsText.length, itemIndex = 0, styleIndex = 0; |
| 229 | 2298 Trace.formatln( "{} {}: itemCount={} stylesCount={}", __FILE__,__LINE__,itemCount, stylesCount ); |
| 213 | 2299 StyleItem[] runs = new StyleItem[itemCount + stylesCount]; |
| 2300 SCRIPT_ITEM* scriptItem = new SCRIPT_ITEM(); | |
| 29 | 2301 bool linkBefore = false; |
| 229 | 2302 Trace.formatln( "{} {}: start={} end={}", __FILE__,__LINE__,start, end ); |
| 29 | 2303 while (start < end) { |
| 2304 StyleItem item = new StyleItem(); | |
| 2305 item.start = start; | |
| 2306 item.style = styles[styleIndex].style; | |
| 229 | 2307 Trace.formatln( "{} {}: count={}", __FILE__,__LINE__,count ); |
| 29 | 2308 runs[count++] = item; |
| 227 | 2309 OS.MoveMemory(scriptItem, (cast(void*)items) + itemIndex * SCRIPT_ITEM.sizeof, SCRIPT_ITEM.sizeof); |
| 29 | 2310 item.analysis = scriptItem.a; |
| 2311 if (linkBefore) { | |
| 2312 item.analysis.fLinkBefore = true; | |
| 2313 linkBefore = false; | |
| 2314 } | |
| 30 | 2315 //scriptItem.a = new SCRIPT_ANALYSIS(); |
| 227 | 2316 OS.MoveMemory(scriptItem, (cast(void*)items) + (itemIndex + 1) * SCRIPT_ITEM.sizeof, SCRIPT_ITEM.sizeof); |
| 29 | 2317 int itemLimit = scriptItem.iCharPos; |
| 2318 int styleLimit = translateOffset(styles[styleIndex + 1].start); | |
| 2319 if (styleLimit <= itemLimit) { | |
| 2320 styleIndex++; | |
| 2321 start = styleLimit; | |
| 2322 if (start < itemLimit && 0 < start && start < end) { | |
| 2323 char pChar = segmentsText.charAt(start - 1); | |
| 2324 char tChar = segmentsText.charAt(start); | |
| 213 | 2325 if (Compatibility.isLetter(pChar) && Compatibility.isLetter(tChar)) { |
| 29 | 2326 item.analysis.fLinkAfter = true; |
| 2327 linkBefore = true; | |
| 2328 } | |
| 2329 } | |
| 2330 } | |
| 2331 if (itemLimit <= styleLimit) { | |
| 2332 itemIndex++; | |
| 2333 start = itemLimit; | |
| 2334 } | |
| 2335 item.length = start - item.start; | |
| 229 | 2336 Trace.formatln( "{} {}: start={} end={}", __FILE__,__LINE__,start, end ); |
| 29 | 2337 } |
| 2338 StyleItem item = new StyleItem(); | |
| 2339 item.start = end; | |
| 227 | 2340 OS.MoveMemory(scriptItem, (cast(void*)items) + itemCount * SCRIPT_ITEM.sizeof, SCRIPT_ITEM.sizeof); |
| 29 | 2341 item.analysis = scriptItem.a; |
| 229 | 2342 Trace.formatln( "{} {}: count={}", __FILE__,__LINE__,count ); |
| 29 | 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; |
| 229 | 2757 Trace.formatln( "{} {}: text='{}'", __FILE__,__LINE__, text ); |
| 29 | 2758 } |
| 2759 | |
| 2760 /** | |
| 2761 * Sets the line width of the receiver, which determines how | |
| 2762 * text should be wrapped and aligned. The default value is | |
| 2763 * <code>-1</code> which means wrapping is disabled. | |
| 2764 * | |
| 2765 * @param width the new width | |
| 2766 * | |
| 2767 * @exception IllegalArgumentException <ul> | |
| 2768 * <li>ERROR_INVALID_ARGUMENT - if the width is <code>0</code> or less than <code>-1</code></li> | |
| 2769 * </ul> | |
| 2770 * @exception DWTException <ul> | |
| 2771 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2772 * </ul> | |
| 2773 * | |
| 2774 * @see #setAlignment(int) | |
| 2775 */ | |
| 2776 public void setWidth (int width) { | |
| 2777 checkLayout(); | |
| 2778 if (width < -1 || width is 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2779 if (this.wrapWidth is width) return; | |
| 2780 freeRuns(); | |
| 2781 this.wrapWidth = width; | |
| 2782 } | |
| 2783 | |
| 30 | 2784 bool shape (HDC hdc, StyleItem run, char[] chars, int[] glyphCount, int maxGlyphs) { |
| 2785 wchar[] wchars = StrToWCHARs( chars ); | |
| 2786 auto hr = OS.ScriptShape(hdc, run.psc, wchars.ptr, wchars.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, glyphCount.ptr); | |
| 29 | 2787 run.glyphCount = glyphCount[0]; |
| 2788 if (hr !is OS.USP_E_SCRIPT_NOT_IN_FONT) { | |
| 30 | 2789 SCRIPT_FONTPROPERTIES fp; |
| 29 | 2790 fp.cBytes = SCRIPT_FONTPROPERTIES.sizeof; |
| 30 | 2791 OS.ScriptGetFontProperties(hdc, run.psc, &fp); |
| 2792 ushort[] glyphs = run.glyphs[ 0 .. glyphCount[0] ]; | |
| 29 | 2793 int i; |
| 2794 for (i = 0; i < glyphs.length; i++) { | |
| 2795 if (glyphs[i] is fp.wgDefault) break; | |
| 2796 } | |
| 2797 if (i is glyphs.length) return true; | |
| 2798 } | |
| 30 | 2799 if (run.psc !is null) { |
| 29 | 2800 OS.ScriptFreeCache(run.psc); |
| 2801 glyphCount[0] = 0; | |
| 30 | 2802 *cast(int*)run.psc = 0; |
| 29 | 2803 } |
| 2804 run.glyphCount = 0; | |
| 2805 return false; | |
| 2806 } | |
| 2807 | |
| 213 | 2808 struct CallbackDataEnumFontFamExProc { |
| 2809 int delegate ( ENUMLOGFONTEX* lpelfe, NEWTEXTMETRICEX* lpntme, int FontType, int lParam) EnumFontFamExProc; | |
| 2810 int lParam; | |
| 2811 } | |
| 2812 extern(Windows) private static int EnumFontFamExProcFunc( ENUMLOGFONTEX* lpelfe, NEWTEXTMETRICEX* lpntme, int FontType, int lParam) { | |
| 2813 auto cb = cast(CallbackDataEnumFontFamExProc*)cast(void*)lParam; | |
| 2814 return cb.EnumFontFamExProc( lpelfe, lpntme, FontType, cb.lParam ); | |
| 2815 } | |
| 2816 | |
| 29 | 2817 /* |
| 2818 * Generate glyphs for one Run. | |
| 2819 */ | |
| 2820 void shape (HDC hdc, StyleItem run) { | |
| 213 | 2821 final int[] buffer = new int[1]; |
| 2822 final char[] chars = new char[run.length]; | |
| 29 | 2823 segmentsText.getChars(run.start, run.start + run.length, chars, 0); |
| 30 | 2824 wchar[] wchars = StrToWCHARs( chars ); |
| 29 | 2825 int maxGlyphs = (chars.length * 3 / 2) + 16; |
| 30 | 2826 auto hHeap = OS.GetProcessHeap(); |
| 2827 run.glyphs = cast(ushort*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2828 if (run.glyphs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2829 run.clusters = cast(WORD*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2830 if (run.clusters is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2831 run.visAttrs = cast(SCRIPT_VISATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * SCRIPT_VISATTR_SIZEOF); | |
| 2832 if (run.visAttrs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2833 run.psc = cast(SCRIPT_CACHE*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, (void*).sizeof); |
| 30 | 2834 if (run.psc is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 213 | 2835 bool shapeSucceed = shape(hdc, run, chars, buffer, maxGlyphs); |
| 2836 final short script = run.analysis.eScript; | |
| 2837 | |
| 2838 if (!shapeSucceed) { | |
| 2839 /* | |
| 2840 * Shape failed. | |
| 2841 * Try to shape with fNoGlyphIndex when the run is in the | |
| 2842 * Private Use Area. This allows for end-user-defined character (EUDC). | |
| 2843 */ | |
| 2844 auto properties = device.scripts[script]; | |
| 2845 if (properties.fPrivateUseArea) { | |
| 2846 run.analysis.fNoGlyphIndex = true; | |
| 2847 shapeSucceed = shape(hdc, run, chars, buffer, maxGlyphs); | |
| 2848 } | |
| 2849 } | |
| 2850 | |
| 2851 if (!shapeSucceed) { | |
| 2852 /* | |
| 2853 * Shape Failed. | |
| 2854 * Try to use MLANG to find a suitable font to shape the run. | |
| 2855 */ | |
| 30 | 2856 if (mLangFontLink2 !is null) { |
| 2857 int dwCodePages; | |
| 2858 int cchCodePages; | |
| 29 | 2859 /* GetStrCodePages() */ |
| 30 | 2860 OS.VtblCall(4, mLangFontLink2, cast(int)wchars.ptr, wchars.length, 0, cast(int)&dwCodePages, cast(int)&cchCodePages); |
| 2861 HFONT hNewFont; | |
| 29 | 2862 /* MapFont() */ |
| 30 | 2863 if (OS.VtblCall(10, mLangFontLink2, cast(int)hdc, dwCodePages, cast(int)wchars[0], cast(int)hNewFont) is OS.S_OK) { |
| 2864 auto hFont = OS.SelectObject(hdc, hNewFont); | |
| 213 | 2865 shapeSucceed = shape(hdc, run, chars, buffer, maxGlyphs); |
| 2866 if (shapeSucceed) { | |
| 30 | 2867 run.fallbackFont = hNewFont; |
| 29 | 2868 } else { |
| 2869 /* ReleaseFont() */ | |
| 30 | 2870 OS.VtblCall(8, mLangFontLink2, cast(int)hNewFont); |
| 29 | 2871 OS.SelectObject(hdc, hFont); |
| 2872 } | |
| 2873 } | |
| 2874 } | |
| 2875 } | |
| 213 | 2876 |
| 2877 if (!shapeSucceed) { | |
| 2878 /* | |
| 2879 * Shape Failed. | |
| 2880 * Try to shape the run using the LOGFONT in the cache. | |
| 2881 */ | |
| 2882 auto hFont = OS.GetCurrentObject(hdc, OS.OBJ_FONT); | |
| 2883 LOGFONT logFont; | |
| 2884 OS.GetObject(hFont, LOGFONT.sizeof, &logFont); | |
| 2885 | |
| 2886 LOGFONT* cachedLogFont = device.logFontsCache !is null ? device.logFontsCache[script] : null; | |
| 2887 if (cachedLogFont !is null) { | |
| 2888 cachedLogFont.lfHeight = logFont.lfHeight; | |
| 2889 cachedLogFont.lfWeight = logFont.lfWeight; | |
| 2890 cachedLogFont.lfItalic = logFont.lfItalic; | |
| 2891 cachedLogFont.lfWidth = logFont.lfWidth; | |
| 2892 auto newFont = OS.CreateFontIndirect(cachedLogFont); | |
| 2893 OS.SelectObject(hdc, newFont); | |
| 2894 shapeSucceed = shape(hdc, run, chars, buffer, maxGlyphs); | |
| 2895 if (shapeSucceed) { | |
| 2896 run.fallbackFont = newFont; | |
| 2897 } else { | |
| 2898 OS.SelectObject(hdc, hFont); | |
| 2899 OS.DeleteObject(newFont); | |
| 2900 } | |
| 2901 } | |
| 2902 if (!shapeSucceed) { | |
| 2903 /* | |
| 2904 * Shape Failed. | |
| 2905 * Use EnumFontFamExProc to iterate over every font in the system that supports | |
| 2906 * the charset of the run and try to shape it. | |
| 2907 */ | |
| 2908 if (device.logFontsCache is null) device.logFontsCache = new LOGFONT*[device.scripts.length]; | |
| 2909 LOGFONT newLogFont; | |
| 2910 | |
| 2911 int EnumFontFamExProc( ENUMLOGFONTEX* lpelfe, NEWTEXTMETRICEX* lpntme, int FontType, int lParam) { | |
| 2912 OS.MoveMemory(&newLogFont, cast(void*)lpelfe, LOGFONT.sizeof); | |
| 2913 if (FontType is OS.RASTER_FONTTYPE) return 1; | |
| 2914 newLogFont.lfHeight = logFont.lfHeight; | |
| 2915 newLogFont.lfWeight = logFont.lfWeight; | |
| 2916 newLogFont.lfItalic = logFont.lfItalic; | |
| 2917 newLogFont.lfWidth = logFont.lfWidth; | |
| 2918 auto newFont = OS.CreateFontIndirect(&newLogFont); | |
| 2919 OS.SelectObject(hdc, newFont); | |
| 2920 if (shape(hdc, run, chars, buffer, maxGlyphs)) { | |
| 2921 run.fallbackFont = newFont; | |
| 2922 LOGFONT* cacheLogFont = new LOGFONT(); | |
| 2923 OS.MoveMemory(cacheLogFont, lpelfe, LOGFONT.sizeof); | |
| 2924 device.logFontsCache[script] = cacheLogFont; | |
| 2925 return 0; | |
| 2926 } | |
| 2927 OS.SelectObject(hdc, hFont); | |
| 2928 OS.DeleteObject(newFont); | |
| 2929 return 1; | |
| 2930 } | |
| 2931 CallbackDataEnumFontFamExProc cb; | |
| 2932 cb.EnumFontFamExProc = &EnumFontFamExProc; | |
| 2933 cb.lParam = 0; | |
| 2934 auto properties = device.scripts[script]; | |
| 2935 int charSet = properties.fAmbiguousCharSet ? OS.DEFAULT_CHARSET : properties.bCharSet; | |
| 2936 newLogFont.lfCharSet = cast(byte)charSet; | |
| 2937 OS.EnumFontFamiliesEx(hdc, &newLogFont, &EnumFontFamExProcFunc, cast(int) &cb, 0); | |
| 2938 shapeSucceed = run.fallbackFont !is null; | |
| 2939 } | |
| 2940 } | |
| 2941 | |
| 2942 if (!shapeSucceed) { | |
| 2943 /* | |
| 2944 * Shape Failed. | |
| 2945 * Give up and shape the run with the default font. | |
| 2946 * Missing glyphs typically will be represent as black boxes in the text. | |
| 2947 */ | |
| 2948 auto wchars_ = StrToWCHARs(chars); | |
| 2949 OS.ScriptShape(hdc, run.psc, wchars_.ptr, wchars_.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, buffer.ptr); | |
| 2950 run.glyphCount = buffer[0]; | |
| 2951 } | |
| 2952 int[3] abc; | |
| 30 | 2953 run.advances = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * 4); |
| 2954 if (run.advances is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2955 run.goffsets = cast(GOFFSET*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * GOFFSET_SIZEOF); | |
| 2956 if (run.goffsets is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2957 OS.ScriptPlace(hdc, run.psc, run.glyphs, run.glyphCount, run.visAttrs, &run.analysis, run.advances, run.goffsets, cast(ABC*)abc.ptr); |
| 2958 run.width = abc[0] + abc[1] + abc[2]; | |
| 2959 TextStyle style = run.style; | |
| 2960 if (style !is null) { | |
| 2961 OUTLINETEXTMETRIC* lotm = null; | |
| 2962 if (style.underline || style.strikeout) { | |
| 2963 lotm = new OUTLINETEXTMETRIC(); | |
| 2964 if (OS.GetOutlineTextMetrics(hdc, OUTLINETEXTMETRIC.sizeof, lotm) is 0) { | |
| 2965 lotm = null; | |
| 2966 } | |
| 2967 } | |
| 2968 if (style.metrics !is null) { | |
| 2969 GlyphMetrics metrics = style.metrics; | |
| 2970 /* | |
| 2971 * Bug in Windows, on a Japanese machine, Uniscribe returns glyphcount | |
| 2972 * equals zero for FFFC (possibly other unicode code points), the fix | |
| 2973 * is to make sure the glyph is at least one pixel wide. | |
| 2974 */ | |
| 2975 run.width = metrics.width * Math.max (1, run.glyphCount); | |
| 2976 run.ascent = metrics.ascent; | |
| 2977 run.descent = metrics.descent; | |
| 2978 run.leading = 0; | |
| 2979 } else { | |
| 2980 TEXTMETRIC lptm; | |
| 2981 if (lotm !is null) { | |
| 2982 lptm = lotm.otmTextMetrics; | |
| 2983 } else { | |
| 2984 lptm = TEXTMETRIC.init; | |
| 2985 OS.GetTextMetrics(hdc, &lptm); | |
| 2986 } | |
| 2987 run.ascent = lptm.tmAscent; | |
| 2988 run.descent = lptm.tmDescent; | |
| 2989 run.leading = lptm.tmInternalLeading; | |
| 2990 } | |
| 2991 if (lotm !is null) { | |
| 2992 run.underlinePos = lotm.otmsUnderscorePosition; | |
| 2993 run.underlineThickness = Math.max(1, lotm.otmsUnderscoreSize); | |
| 2994 run.strikeoutPos = lotm.otmsStrikeoutPosition; | |
| 2995 run.strikeoutThickness = Math.max(1, lotm.otmsStrikeoutSize); | |
| 2996 } else { | |
| 2997 run.underlinePos = 1; | |
| 2998 run.underlineThickness = 1; | |
| 2999 run.strikeoutPos = run.ascent / 2; | |
| 3000 run.strikeoutThickness = 1; | |
| 3001 } | |
| 3002 run.ascent += style.rise; | |
| 3003 run.descent -= style.rise; | |
| 29 | 3004 } else { |
| 3005 TEXTMETRIC lptm; | |
| 3006 OS.GetTextMetrics(hdc, &lptm); | |
| 3007 run.ascent = lptm.tmAscent; | |
| 3008 run.descent = lptm.tmDescent; | |
| 3009 run.leading = lptm.tmInternalLeading; | |
| 3010 } | |
| 3011 } | |
| 3012 | |
| 3013 int validadeOffset(int offset, int step) { | |
| 3014 offset += step; | |
| 3015 if (segments !is null && segments.length > 2) { | |
| 3016 for (int i = 0; i < segments.length; i++) { | |
| 3017 if (translateOffset(segments[i]) - 1 is offset) { | |
| 3018 offset += step; | |
| 3019 break; | |
| 3020 } | |
| 3021 } | |
| 3022 } | |
| 3023 return offset; | |
| 3024 } | |
| 3025 | |
| 3026 /** | |
| 3027 * Returns a string containing a concise, human-readable | |
| 3028 * description of the receiver. | |
| 3029 * | |
| 3030 * @return a string representation of the receiver | |
| 3031 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
3032 override public String toString () { |
| 29 | 3033 if (isDisposed()) return "TextLayout {*DISPOSED*}"; |
| 3034 return "TextLayout {}"; | |
| 3035 } | |
| 3036 | |
| 3037 int translateOffset(int offset) { | |
| 3038 if (segments is null) return offset; | |
| 3039 int nSegments = segments.length; | |
| 3040 if (nSegments <= 1) return offset; | |
| 227 | 3041 int length = text.length; |
| 3042 if (length is 0) return offset; | |
| 29 | 3043 if (nSegments is 2) { |
| 227 | 3044 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3045 } |
| 3046 for (int i = 0; i < nSegments && offset - i >= segments[i]; i++) { | |
| 3047 offset++; | |
| 3048 } | |
| 3049 return offset; | |
| 3050 } | |
| 3051 | |
| 3052 int untranslateOffset(int offset) { | |
| 3053 if (segments is null) return offset; | |
| 3054 int nSegments = segments.length; | |
| 3055 if (nSegments <= 1) return offset; | |
| 227 | 3056 int length = text.length; |
| 3057 if (length is 0) return offset; | |
| 29 | 3058 if (nSegments is 2) { |
| 227 | 3059 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3060 } |
| 3061 for (int i = 0; i < nSegments && offset > segments[i]; i++) { | |
| 3062 offset--; | |
| 3063 } | |
| 3064 return offset; | |
| 3065 } | |
| 3066 } |