Mercurial > projects > dwt-win
annotate dwt/graphics/TextLayout.d @ 278:3f53ebb05b5b
Fix: make MARK copy work correctly mit multiple chars.
Fix: getLocation, getOffset (codepoint vs. chars)
Fix: itemize() translation of utf16 to utf8 indices
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Tue, 05 Aug 2008 01:07:44 +0200 |
| parents | b3dbd786541a |
| children | 35d730fb5e9f |
| rev | line source |
|---|---|
| 29 | 1 /******************************************************************************* |
| 246 | 2 * Copyright (c) 2000, 2008 IBM Corporation and others. |
| 29 | 3 * All rights reserved. This program and the accompanying materials |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
|
31
92c102dd64a3
Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
30
diff
changeset
|
10 * Port to the D programming language: |
|
92c102dd64a3
Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
30
diff
changeset
|
11 * Frank Benoit <benoit@tionex.de> |
| 29 | 12 *******************************************************************************/ |
| 13 module dwt.graphics.TextLayout; | |
| 14 | |
| 15 import dwt.DWT; | |
| 16 import dwt.DWTException; | |
| 17 import dwt.internal.Compatibility; | |
| 18 import dwt.internal.gdip.Gdip; | |
| 213 | 19 |
| 29 | 20 import dwt.internal.win32.OS; |
| 21 | |
| 22 import dwt.graphics.Color; | |
| 23 import dwt.graphics.Device; | |
| 24 import dwt.graphics.Font; | |
| 25 import dwt.graphics.FontMetrics; | |
| 26 import dwt.graphics.GC; | |
| 27 import dwt.graphics.GCData; | |
| 28 import dwt.graphics.GlyphMetrics; | |
| 29 import dwt.graphics.Point; | |
| 30 import dwt.graphics.Rectangle; | |
| 31 import dwt.graphics.Region; | |
| 32 import dwt.graphics.Resource; | |
| 33 import dwt.graphics.TextStyle; | |
| 34 | |
| 35 import tango.text.convert.Format; | |
|
278
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Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
36 import Utf = tango.text.convert.Utf; |
| 29 | 37 import dwt.dwthelper.utils; |
| 30 | 38 import dwt.dwthelper.System; |
| 29 | 39 |
| 227 | 40 |
| 29 | 41 /** |
| 42 * <code>TextLayout</code> is a graphic object that represents | |
| 43 * styled text. | |
| 44 * <p> | |
| 45 * Instances of this class provide support for drawing, cursor | |
| 46 * navigation, hit testing, text wrapping, alignment, tab expansion | |
| 47 * line breaking, etc. These are aspects required for rendering internationalized text. | |
| 48 * </p><p> | |
| 49 * Application code must explicitly invoke the <code>TextLayout#dispose()</code> | |
| 50 * method to release the operating system resources managed by each instance | |
| 51 * when those instances are no longer required. | |
| 52 * </p> | |
| 53 * | |
| 246 | 54 * @see <a href="http://www.eclipse.org/swt/snippets/#textlayout">TextLayout, TextStyle snippets</a> |
| 55 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: CustomControlExample, StyledText tab</a> | |
| 56 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> | |
| 57 * | |
| 58 * @since 3.0 | |
| 29 | 59 */ |
| 60 public final class TextLayout : Resource { | |
| 227 | 61 |
| 213 | 62 alias Resource.init_ init_; |
| 63 | |
| 227 | 64 /++ |
| 229 | 65 + DWT doku |
| 66 + The styles has at minimum 2 member, each with a start. The last element is the end marker. | |
| 67 + | |
| 68 + invariant{ | |
| 69 + assert( stylesCount >= 2 ); | |
| 70 + assert( stylesCount <= styles.length ); | |
| 71 + assert( styles[stylesCount-1] ); | |
| 72 + assert( styles[stylesCount-1].start is text.length ); | |
| 73 + } | |
| 74 +/ | |
| 227 | 75 |
| 76 | |
| 29 | 77 Font font; |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
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parents:
157
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changeset
|
78 String text, segmentsText; |
| 29 | 79 int lineSpacing; |
| 80 int ascent, descent; | |
| 81 int alignment; | |
| 82 int wrapWidth; | |
| 83 int orientation; | |
| 84 int indent; | |
| 85 bool justify; | |
| 86 int[] tabs; | |
| 87 int[] segments; | |
| 88 StyleItem[] styles; | |
| 213 | 89 int stylesCount; |
| 29 | 90 |
| 91 StyleItem[] allRuns; | |
| 92 StyleItem[][] runs; | |
| 93 int[] lineOffset, lineY, lineWidth; | |
| 30 | 94 void* mLangFontLink2; |
| 29 | 95 |
|
278
3f53ebb05b5b
Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
96 static const dchar LTR_MARK = '\u200E', RTL_MARK = '\u200F'; |
|
3f53ebb05b5b
Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
97 static const String STR_LTR_MARK = "\u200E", STR_RTL_MARK = "\u200F"; |
|
3f53ebb05b5b
Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
98 static const int MARK_SIZE = 3; |
| 29 | 99 static const int SCRIPT_VISATTR_SIZEOF = 2; |
| 100 static const int GOFFSET_SIZEOF = 8; | |
| 80 | 101 private static byte[16] CLSID_CMultiLanguage; |
| 102 private static byte[16] IID_IMLangFontLink2; | |
| 103 private static bool static_this_completed = false; | |
| 104 private static void static_this() { | |
| 105 // in case of allready initialized, we can check and leave without lock | |
| 106 if( static_this_completed ){ | |
| 107 return; | |
| 108 } | |
| 109 synchronized { | |
| 110 if( !static_this_completed ){ | |
| 111 OS.IIDFromString("{275c23e2-3747-11d0-9fea-00aa003f8646}\0".toCharArray().ptr, CLSID_CMultiLanguage.ptr); | |
| 112 OS.IIDFromString("{DCCFC162-2B38-11d2-B7EC-00C04F8F5D9A}\0".toCharArray().ptr, IID_IMLangFontLink2.ptr); | |
| 113 static_this_completed = true; | |
| 114 } | |
| 115 } | |
| 29 | 116 } |
| 117 | |
| 213 | 118 /* IME has a copy of these constants */ |
| 119 static const int UNDERLINE_IME_DOT = 1 << 16; | |
| 120 static const int UNDERLINE_IME_DASH = 2 << 16; | |
| 121 static const int UNDERLINE_IME_THICK = 3 << 16; | |
| 122 | |
| 29 | 123 class StyleItem { |
| 124 TextStyle style; | |
|
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3f53ebb05b5b
Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
125 // DWT: start, lenght relative to segmentsText |
| 29 | 126 int start, length; |
| 127 bool lineBreak, softBreak, tab; | |
| 128 | |
| 129 /*Script cache and analysis */ | |
| 130 SCRIPT_ANALYSIS analysis; | |
| 131 SCRIPT_CACHE* psc; | |
| 132 | |
| 133 /*Shape info (malloc when the run is shaped) */ | |
| 134 WORD* glyphs; | |
| 135 int glyphCount; | |
| 136 WORD* clusters; | |
| 137 SCRIPT_VISATTR* visAttrs; | |
| 138 | |
| 139 /*Place info (malloc when the run is placed) */ | |
| 140 int* advances; | |
| 30 | 141 GOFFSET* goffsets; |
| 142 int width; | |
| 143 int ascent; | |
| 144 int descent; | |
| 145 int leading; | |
| 146 int x; | |
| 213 | 147 int underlinePos, underlineThickness; |
| 148 int strikeoutPos, strikeoutThickness; | |
| 29 | 149 |
| 150 /* Justify info (malloc during computeRuns) */ | |
| 151 int* justify; | |
| 152 | |
| 153 /* ScriptBreak */ | |
| 154 SCRIPT_LOGATTR* psla; | |
| 155 | |
| 30 | 156 HFONT fallbackFont; |
| 29 | 157 |
| 158 void free() { | |
| 159 auto hHeap = OS.GetProcessHeap(); | |
| 160 if (psc !is null) { | |
| 161 OS.ScriptFreeCache (psc); | |
| 162 OS.HeapFree(hHeap, 0, psc); | |
| 163 psc = null; | |
| 164 } | |
| 165 if (glyphs !is null) { | |
| 166 OS.HeapFree(hHeap, 0, glyphs); | |
| 167 glyphs = null; | |
| 168 glyphCount = 0; | |
| 169 } | |
| 170 if (clusters !is null) { | |
| 171 OS.HeapFree(hHeap, 0, clusters); | |
| 172 clusters = null; | |
| 173 } | |
| 174 if (visAttrs !is null) { | |
| 175 OS.HeapFree(hHeap, 0, visAttrs); | |
| 176 visAttrs = null; | |
| 177 } | |
| 178 if (advances !is null) { | |
| 179 OS.HeapFree(hHeap, 0, advances); | |
| 180 advances = null; | |
| 181 } | |
| 182 if (goffsets !is null) { | |
| 183 OS.HeapFree(hHeap, 0, goffsets); | |
| 184 goffsets = null; | |
| 185 } | |
| 186 if (justify !is null) { | |
| 187 OS.HeapFree(hHeap, 0, justify); | |
| 188 justify = null; | |
| 189 } | |
| 190 if (psla !is null) { | |
| 191 OS.HeapFree(hHeap, 0, psla); | |
| 192 psla = null; | |
| 193 } | |
| 194 if (fallbackFont !is null) { | |
| 246 | 195 OS.DeleteObject(fallbackFont); |
| 29 | 196 fallbackFont = null; |
| 197 } | |
| 30 | 198 width = 0; |
| 199 ascent = 0; | |
| 200 descent = 0; | |
| 201 x = 0; | |
| 29 | 202 lineBreak = softBreak = false; |
| 203 } | |
|
212
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reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
204 override public String toString () { |
| 29 | 205 return Format( "StyleItem {{{}, {}}", start, style ); |
| 206 } | |
| 207 } | |
| 208 | |
| 209 /** | |
| 210 * Constructs a new instance of this class on the given device. | |
| 211 * <p> | |
| 212 * You must dispose the text layout when it is no longer required. | |
| 213 * </p> | |
| 214 * | |
| 215 * @param device the device on which to allocate the text layout | |
| 216 * | |
| 217 * @exception IllegalArgumentException <ul> | |
| 218 * <li>ERROR_NULL_ARGUMENT - if device is null and there is no current device</li> | |
| 219 * </ul> | |
| 220 * | |
| 221 * @see #dispose() | |
| 222 */ | |
| 223 public this (Device device) { | |
| 80 | 224 static_this(); |
| 213 | 225 super(device); |
| 29 | 226 wrapWidth = ascent = descent = -1; |
| 227 lineSpacing = 0; | |
| 228 orientation = DWT.LEFT_TO_RIGHT; | |
| 229 styles = new StyleItem[2]; | |
| 230 styles[0] = new StyleItem(); | |
| 231 styles[1] = new StyleItem(); | |
| 213 | 232 stylesCount = 2; |
| 29 | 233 text = ""; //$NON-NLS-1$ |
| 30 | 234 void* ppv; |
| 235 OS.OleInitialize(null); | |
| 236 if (OS.CoCreateInstance(CLSID_CMultiLanguage.ptr, null, OS.CLSCTX_INPROC_SERVER, IID_IMLangFontLink2.ptr, cast(void*)&ppv) is OS.S_OK) { | |
| 237 mLangFontLink2 = ppv; | |
| 29 | 238 } |
| 213 | 239 init_(); |
| 29 | 240 } |
| 241 | |
| 242 void breakRun(StyleItem run) { | |
| 30 | 243 if (run.psla !is null) return; |
| 59 | 244 wchar[] chars = StrToWCHARs( 0, segmentsText[ run.start .. run.start + run.length ] ); |
| 30 | 245 auto hHeap = OS.GetProcessHeap(); |
| 246 run.psla = cast(SCRIPT_LOGATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_LOGATTR.sizeof * chars.length); | |
| 247 if (run.psla is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 248 OS.ScriptBreak(chars.ptr, chars.length, &run.analysis, run.psla); | |
| 29 | 249 } |
| 250 | |
| 251 void checkLayout () { | |
| 252 if (isDisposed()) DWT.error(DWT.ERROR_GRAPHIC_DISPOSED); | |
| 253 } | |
| 254 | |
| 255 /* | |
| 256 * Compute the runs: itemize, shape, place, and reorder the runs. | |
| 257 * Break paragraphs into lines, wraps the text, and initialize caches. | |
| 258 */ | |
| 259 void computeRuns (GC gc) { | |
| 260 if (runs !is null) return; | |
| 30 | 261 auto hDC = gc !is null ? gc.handle : device.internal_new_GC(null); |
| 262 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 263 allRuns = itemize(); |
| 264 for (int i=0; i<allRuns.length - 1; i++) { | |
| 265 StyleItem run = allRuns[i]; | |
| 266 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 267 shape(srcHdc, run); | |
| 268 } | |
| 30 | 269 SCRIPT_LOGATTR* logAttr; |
| 270 SCRIPT_PROPERTIES* properties; | |
| 29 | 271 int lineWidth = indent, lineStart = 0, lineCount = 1; |
| 272 for (int i=0; i<allRuns.length - 1; i++) { | |
| 273 StyleItem run = allRuns[i]; | |
| 274 if (run.length is 1) { | |
| 275 char ch = segmentsText.charAt(run.start); | |
| 276 switch (ch) { | |
| 277 case '\t': { | |
| 278 run.tab = true; | |
| 279 if (tabs is null) break; | |
| 280 int tabsLength = tabs.length, j; | |
| 281 for (j = 0; j < tabsLength; j++) { | |
| 282 if (tabs[j] > lineWidth) { | |
| 283 run.width = tabs[j] - lineWidth; | |
| 284 break; | |
| 285 } | |
| 286 } | |
| 287 if (j is tabsLength) { | |
| 288 int tabX = tabs[tabsLength-1]; | |
| 289 int lastTabWidth = tabsLength > 1 ? tabs[tabsLength-1] - tabs[tabsLength-2] : tabs[0]; | |
| 290 if (lastTabWidth > 0) { | |
| 291 while (tabX <= lineWidth) tabX += lastTabWidth; | |
| 292 run.width = tabX - lineWidth; | |
| 293 } | |
| 294 } | |
| 295 break; | |
| 296 } | |
| 297 case '\n': { | |
| 298 run.lineBreak = true; | |
| 299 break; | |
| 300 } | |
| 301 case '\r': { | |
| 302 run.lineBreak = true; | |
| 303 StyleItem next = allRuns[i + 1]; | |
| 304 if (next.length !is 0 && segmentsText.charAt(next.start) is '\n') { | |
| 305 run.length += 1; | |
| 306 next.free(); | |
| 246 | 307 StyleItem[] newAllRuns = new StyleItem[allRuns.length - 1]; |
| 308 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 309 System.arraycopy(allRuns, i + 2, newAllRuns, i + 1, allRuns.length - i - 2); | |
| 310 allRuns = newAllRuns; | |
| 29 | 311 } |
| 312 break; | |
| 313 } | |
| 81 | 314 default: |
| 29 | 315 } |
| 316 } | |
| 317 if (wrapWidth !is -1 && lineWidth + run.width > wrapWidth && !run.tab) { | |
| 318 int start = 0; | |
| 319 int[] piDx = new int[run.length]; | |
| 320 if (run.style !is null && run.style.metrics !is null) { | |
| 321 piDx[0] = run.width; | |
| 322 } else { | |
| 30 | 323 OS.ScriptGetLogicalWidths(&run.analysis, run.length, run.glyphCount, run.advances, run.clusters, run.visAttrs, piDx.ptr); |
| 29 | 324 } |
| 325 int width = 0, maxWidth = wrapWidth - lineWidth; | |
| 326 while (width + piDx[start] < maxWidth) { | |
| 327 width += piDx[start++]; | |
| 328 } | |
| 329 int firstStart = start; | |
| 330 int firstIndice = i; | |
| 331 while (i >= lineStart) { | |
| 332 breakRun(run); | |
| 333 while (start >= 0) { | |
| 30 | 334 logAttr = run.psla + start; |
| 335 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 336 if (logAttr.fSoftBreak || logAttr.fWhiteSpace) break; |
| 337 start--; | |
| 338 } | |
| 339 | |
| 340 /* | |
| 341 * Bug in Windows. For some reason Uniscribe sets the fSoftBreak flag for the first letter | |
| 342 * after a letter with an accent. This cause a break line to be set in the middle of a word. | |
| 343 * The fix is to detect the case and ignore fSoftBreak forcing the algorithm keep searching. | |
| 344 */ | |
| 345 if (start is 0 && i !is lineStart && !run.tab) { | |
| 346 if (logAttr.fSoftBreak && !logAttr.fWhiteSpace) { | |
| 30 | 347 properties = device.scripts[run.analysis.eScript]; |
| 348 //OS.MoveMemory(properties, device.scripts[run.analysis.eScript], SCRIPT_PROPERTIES.sizeof); | |
| 29 | 349 int langID = properties.langid; |
| 350 StyleItem pRun = allRuns[i - 1]; | |
| 30 | 351 //OS.MoveMemory(properties, device.scripts[pRun.analysis.eScript], SCRIPT_PROPERTIES.sizeof); |
| 29 | 352 if (properties.langid is langID || langID is OS.LANG_NEUTRAL || properties.langid is OS.LANG_NEUTRAL) { |
| 353 breakRun(pRun); | |
| 30 | 354 logAttr = pRun.psla + (pRun.length - 1); |
| 355 //OS.MoveMemory(logAttr, pRun.psla + ((pRun.length - 1) * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 356 if (!logAttr.fWhiteSpace) start = -1; |
| 357 } | |
| 358 } | |
| 359 } | |
| 360 if (start >= 0 || i is lineStart) break; | |
| 361 run = allRuns[--i]; | |
| 362 start = run.length - 1; | |
| 363 } | |
| 364 if (start is 0 && i !is lineStart && !run.tab) { | |
| 365 run = allRuns[--i]; | |
| 366 } else if (start <= 0 && i is lineStart) { | |
| 213 | 367 if (lineWidth is wrapWidth && firstIndice > 0) { |
| 368 i = firstIndice - 1; | |
| 369 run = allRuns[i]; | |
| 370 start = run.length; | |
| 371 } else { | |
| 372 i = firstIndice; | |
| 373 run = allRuns[i]; | |
| 374 start = Math.max(1, firstStart); | |
| 375 } | |
| 29 | 376 } |
| 377 breakRun(run); | |
| 378 while (start < run.length) { | |
| 30 | 379 logAttr = run.psla + start; |
| 380 //OS.MoveMemory(logAttr, run.psla + (start * SCRIPT_LOGATTR.sizeof), SCRIPT_LOGATTR.sizeof); | |
| 29 | 381 if (!logAttr.fWhiteSpace) break; |
| 382 start++; | |
| 383 } | |
| 384 if (0 < start && start < run.length) { | |
| 385 StyleItem newRun = new StyleItem(); | |
| 386 newRun.start = run.start + start; | |
| 387 newRun.length = run.length - start; | |
| 388 newRun.style = run.style; | |
| 246 | 389 newRun.analysis = cloneScriptAnalysis(run.analysis); |
| 29 | 390 run.free(); |
| 391 run.length = start; | |
| 392 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 246 | 393 run.analysis.fNoGlyphIndex = false; |
| 29 | 394 shape (srcHdc, run); |
| 395 OS.SelectObject(srcHdc, getItemFont(newRun)); | |
| 246 | 396 newRun.analysis.fNoGlyphIndex = false; |
| 29 | 397 shape (srcHdc, newRun); |
| 398 StyleItem[] newAllRuns = new StyleItem[allRuns.length + 1]; | |
| 399 System.arraycopy(allRuns, 0, newAllRuns, 0, i + 1); | |
| 400 System.arraycopy(allRuns, i + 1, newAllRuns, i + 2, allRuns.length - i - 1); | |
| 401 allRuns = newAllRuns; | |
| 402 allRuns[i + 1] = newRun; | |
| 403 } | |
| 404 if (i !is allRuns.length - 2) { | |
| 405 run.softBreak = run.lineBreak = true; | |
| 406 } | |
| 407 } | |
| 408 lineWidth += run.width; | |
| 409 if (run.lineBreak) { | |
| 410 lineStart = i + 1; | |
| 411 lineWidth = run.softBreak ? 0 : indent; | |
| 412 lineCount++; | |
| 413 } | |
| 414 } | |
| 415 lineWidth = 0; | |
| 30 | 416 runs = new StyleItem[][](lineCount); |
| 29 | 417 lineOffset = new int[lineCount + 1]; |
| 418 lineY = new int[lineCount + 1]; | |
| 419 this.lineWidth = new int[lineCount]; | |
| 420 int lineRunCount = 0, line = 0; | |
| 421 int ascent = Math.max(0, this.ascent); | |
| 422 int descent = Math.max(0, this.descent); | |
| 423 StyleItem[] lineRuns = new StyleItem[allRuns.length]; | |
| 424 for (int i=0; i<allRuns.length; i++) { | |
| 425 StyleItem run = allRuns[i]; | |
| 426 lineRuns[lineRunCount++] = run; | |
| 427 lineWidth += run.width; | |
| 428 ascent = Math.max(ascent, run.ascent); | |
| 429 descent = Math.max(descent, run.descent); | |
| 430 if (run.lineBreak || i is allRuns.length - 1) { | |
| 431 /* Update the run metrics if the last run is a hard break. */ | |
| 432 if (lineRunCount is 1 && i is allRuns.length - 1) { | |
| 433 TEXTMETRIC lptm; | |
| 434 OS.SelectObject(srcHdc, getItemFont(run)); | |
| 435 OS.GetTextMetrics(srcHdc, &lptm); | |
| 436 run.ascent = lptm.tmAscent; | |
| 437 run.descent = lptm.tmDescent; | |
| 438 ascent = Math.max(ascent, run.ascent); | |
| 439 descent = Math.max(descent, run.descent); | |
| 440 } | |
| 441 runs[line] = new StyleItem[lineRunCount]; | |
| 442 System.arraycopy(lineRuns, 0, runs[line], 0, lineRunCount); | |
| 443 | |
| 444 if (justify && wrapWidth !is -1 && run.softBreak && lineWidth > 0) { | |
| 445 if (line is 0) { | |
| 446 lineWidth += indent; | |
| 447 } else { | |
| 448 StyleItem[] previousLine = runs[line - 1]; | |
| 449 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 450 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 451 lineWidth += indent; | |
| 452 } | |
| 453 } | |
| 30 | 454 auto hHeap = OS.GetProcessHeap(); |
| 29 | 455 int newLineWidth = 0; |
| 456 for (int j = 0; j < runs[line].length; j++) { | |
| 457 StyleItem item = runs[line][j]; | |
| 458 int iDx = item.width * wrapWidth / lineWidth; | |
| 459 if (iDx !is item.width) { | |
| 30 | 460 item.justify = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, item.glyphCount * 4); |
| 461 if (item.justify is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 462 OS.ScriptJustify(item.visAttrs, item.advances, item.glyphCount, iDx - item.width, 2, item.justify); |
| 463 item.width = iDx; | |
| 464 } | |
| 465 newLineWidth += item.width; | |
| 466 } | |
| 467 lineWidth = newLineWidth; | |
| 468 } | |
| 469 this.lineWidth[line] = lineWidth; | |
| 470 | |
| 471 StyleItem lastRun = runs[line][lineRunCount - 1]; | |
| 472 int lastOffset = lastRun.start + lastRun.length; | |
| 473 runs[line] = reorder(runs[line], i is allRuns.length - 1); | |
| 474 lastRun = runs[line][lineRunCount - 1]; | |
| 475 if (run.softBreak && run !is lastRun) { | |
| 476 run.softBreak = run.lineBreak = false; | |
| 477 lastRun.softBreak = lastRun.lineBreak = true; | |
| 478 } | |
| 479 | |
| 480 lineWidth = getLineIndent(line); | |
| 481 for (int j = 0; j < runs[line].length; j++) { | |
| 482 runs[line][j].x = lineWidth; | |
| 483 lineWidth += runs[line][j].width; | |
| 484 } | |
| 485 line++; | |
| 486 lineY[line] = lineY[line - 1] + ascent + descent + lineSpacing; | |
| 487 lineOffset[line] = lastOffset; | |
| 488 lineRunCount = lineWidth = 0; | |
| 489 ascent = Math.max(0, this.ascent); | |
| 490 descent = Math.max(0, this.descent); | |
| 491 } | |
| 492 } | |
| 30 | 493 if (srcHdc !is null) OS.DeleteDC(srcHdc); |
| 29 | 494 if (gc is null) device.internal_dispose_GC(hDC, null); |
| 495 } | |
| 496 | |
| 213 | 497 void destroy () { |
| 29 | 498 freeRuns(); |
| 499 font = null; | |
| 500 text = null; | |
| 501 segmentsText = null; | |
| 502 tabs = null; | |
| 503 styles = null; | |
| 504 runs = null; | |
| 505 lineOffset = null; | |
| 506 lineY = null; | |
| 507 lineWidth = null; | |
| 30 | 508 if (mLangFontLink2 !is null) { |
| 29 | 509 /* Release() */ |
| 510 OS.VtblCall(2, mLangFontLink2); | |
| 30 | 511 mLangFontLink2 = null; |
| 29 | 512 } |
| 513 OS.OleUninitialize(); | |
| 514 } | |
| 515 | |
| 249 | 516 SCRIPT_ANALYSIS cloneScriptAnalysis ( inout SCRIPT_ANALYSIS src) { |
| 517 SCRIPT_ANALYSIS dst; | |
| 246 | 518 dst.eScript = src.eScript; |
| 519 dst.fRTL = src.fRTL; | |
| 520 dst.fLayoutRTL = src.fLayoutRTL; | |
| 521 dst.fLinkBefore = src.fLinkBefore; | |
| 522 dst.fLinkAfter = src.fLinkAfter; | |
| 523 dst.fLogicalOrder = src.fLogicalOrder; | |
| 524 dst.fNoGlyphIndex = src.fNoGlyphIndex; | |
| 525 dst.s.uBidiLevel = src.s.uBidiLevel; | |
| 526 dst.s.fOverrideDirection = src.s.fOverrideDirection; | |
| 527 dst.s.fInhibitSymSwap = src.s.fInhibitSymSwap; | |
| 528 dst.s.fCharShape = src.s.fCharShape; | |
| 529 dst.s.fDigitSubstitute = src.s.fDigitSubstitute; | |
| 530 dst.s.fInhibitLigate = src.s.fInhibitLigate; | |
| 531 dst.s.fDisplayZWG = src.s.fDisplayZWG; | |
| 532 dst.s.fArabicNumContext = src.s.fArabicNumContext; | |
| 533 dst.s.fGcpClusters = src.s.fGcpClusters; | |
| 534 dst.s.fReserved = src.s.fReserved; | |
| 535 dst.s.fEngineReserved = src.s.fEngineReserved; | |
| 536 return dst; | |
| 537 } | |
| 538 | |
| 29 | 539 /** |
| 540 * Draws the receiver's text using the specified GC at the specified | |
| 541 * point. | |
| 542 * | |
| 543 * @param gc the GC to draw | |
| 544 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 545 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 546 * | |
| 547 * @exception DWTException <ul> | |
| 548 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 549 * </ul> | |
| 550 * @exception IllegalArgumentException <ul> | |
| 551 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 552 * </ul> | |
| 553 */ | |
| 554 public void draw (GC gc, int x, int y) { | |
| 555 draw(gc, x, y, -1, -1, null, null); | |
| 556 } | |
| 557 | |
| 558 /** | |
| 559 * Draws the receiver's text using the specified GC at the specified | |
| 560 * point. | |
| 561 * | |
| 562 * @param gc the GC to draw | |
| 563 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 564 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 565 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 566 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 567 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 568 * @param selectionBackground selection background, or NULL to use the system default color | |
| 569 * | |
| 570 * @exception DWTException <ul> | |
| 571 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 572 * </ul> | |
| 573 * @exception IllegalArgumentException <ul> | |
| 574 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 575 * </ul> | |
| 576 */ | |
| 577 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground) { | |
| 578 draw(gc, x, y, selectionStart, selectionEnd, selectionForeground, selectionBackground, 0); | |
| 579 } | |
| 580 | |
| 581 /** | |
| 582 * Draws the receiver's text using the specified GC at the specified | |
| 583 * point. | |
| 584 * <p> | |
| 585 * The parameter <code>flags</code> can include one of <code>DWT.DELIMITER_SELECTION</code> | |
| 586 * or <code>DWT.FULL_SELECTION</code> to specify the selection behavior on all lines except | |
| 587 * for the last line, and can also include <code>DWT.LAST_LINE_SELECTION</code> to extend | |
| 588 * the specified selection behavior to the last line. | |
| 589 * </p> | |
| 590 * @param gc the GC to draw | |
| 591 * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 592 * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn | |
| 593 * @param selectionStart the offset where the selections starts, or -1 indicating no selection | |
| 594 * @param selectionEnd the offset where the selections ends, or -1 indicating no selection | |
| 595 * @param selectionForeground selection foreground, or NULL to use the system default color | |
| 596 * @param selectionBackground selection background, or NULL to use the system default color | |
| 597 * @param flags drawing options | |
| 598 * | |
| 599 * @exception DWTException <ul> | |
| 600 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 601 * </ul> | |
| 602 * @exception IllegalArgumentException <ul> | |
| 603 * <li>ERROR_NULL_ARGUMENT - if the gc is null</li> | |
| 604 * </ul> | |
| 605 * | |
| 606 * @since 3.3 | |
| 607 */ | |
| 608 public void draw (GC gc, int x, int y, int selectionStart, int selectionEnd, Color selectionForeground, Color selectionBackground, int flags) { | |
| 609 checkLayout(); | |
| 610 computeRuns(gc); | |
| 611 if (gc is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); | |
| 612 if (gc.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 613 if (selectionForeground !is null && selectionForeground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 614 if (selectionBackground !is null && selectionBackground.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 30 | 615 int length = text.length; |
| 29 | 616 if (length is 0 && flags is 0) return; |
| 30 | 617 auto hdc = gc.handle; |
| 29 | 618 Rectangle clip = gc.getClipping(); |
| 619 GCData data = gc.data; | |
| 30 | 620 auto gdipGraphics = data.gdipGraphics; |
| 621 auto foreground = data.foreground; | |
| 622 auto alpha = data.alpha; | |
| 623 bool gdip = gdipGraphics !is null && (alpha !is 0xFF || data.foregroundPattern !is null); | |
| 624 HRGN clipRgn; | |
| 29 | 625 float[] lpXform = null; |
| 30 | 626 Gdip.Rect gdipRect; |
| 627 if (gdipGraphics !is null && !gdip) { | |
| 628 auto matrix = Gdip.Matrix_new(1, 0, 0, 1, 0, 0); | |
| 629 if (matrix is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 29 | 630 Gdip.Graphics_GetTransform(gdipGraphics, matrix); |
| 30 | 631 auto identity_ = gc.identity(); |
| 632 Gdip.Matrix_Invert(identity_); | |
| 633 Gdip.Matrix_Multiply(matrix, identity_, Gdip.MatrixOrderAppend); | |
| 634 Gdip.Matrix_delete(identity_); | |
| 29 | 635 if (!Gdip.Matrix_IsIdentity(matrix)) { |
| 636 lpXform = new float[6]; | |
| 213 | 637 Gdip.Matrix_GetElements(matrix, lpXform.ptr); |
| 29 | 638 } |
| 639 Gdip.Matrix_delete(matrix); | |
| 640 if ((data.style & DWT.MIRRORED) !is 0 && lpXform !is null) { | |
| 641 gdip = true; | |
| 642 lpXform = null; | |
| 643 } else { | |
| 644 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeNone); | |
| 30 | 645 auto rgn = Gdip.Region_new(); |
| 29 | 646 Gdip.Graphics_GetClip(gdipGraphics, rgn); |
| 647 if (!Gdip.Region_IsInfinite(rgn, gdipGraphics)) { | |
| 648 clipRgn = Gdip.Region_GetHRGN(rgn, gdipGraphics); | |
| 649 } | |
| 650 Gdip.Region_delete(rgn); | |
| 651 Gdip.Graphics_SetPixelOffsetMode(gdipGraphics, Gdip.PixelOffsetModeHalf); | |
| 652 hdc = Gdip.Graphics_GetHDC(gdipGraphics); | |
| 653 } | |
| 654 } | |
|
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
|
655 Gdip.Brush foregroundBrush; |
| 30 | 656 int state = 0; |
| 29 | 657 if (gdip) { |
| 658 gc.checkGC(GC.FOREGROUND); | |
| 659 foregroundBrush = gc.getFgBrush(); | |
| 660 } else { | |
| 661 state = OS.SaveDC(hdc); | |
| 662 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 663 OS.SetLayout(hdc, OS.GetLayout(hdc) | OS.LAYOUT_RTL); | |
| 664 } | |
| 665 if (lpXform !is null) { | |
| 666 OS.SetGraphicsMode(hdc, OS.GM_ADVANCED); | |
| 30 | 667 OS.SetWorldTransform(hdc, cast(XFORM*)lpXform.ptr); |
| 29 | 668 } |
| 30 | 669 if (clipRgn !is null) { |
| 29 | 670 OS.SelectClipRgn(hdc, clipRgn); |
| 671 OS.DeleteObject(clipRgn); | |
| 672 } | |
| 673 } | |
| 674 bool hasSelection = selectionStart <= selectionEnd && selectionStart !is -1 && selectionEnd !is -1; | |
| 675 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 676 selectionStart = Math.min(Math.max(0, selectionStart), length - 1); | |
| 677 selectionEnd = Math.min(Math.max(0, selectionEnd), length - 1); | |
| 678 if (selectionForeground is null) selectionForeground = device.getSystemColor(DWT.COLOR_LIST_SELECTION_TEXT); | |
| 679 if (selectionBackground is null) selectionBackground = device.getSystemColor(DWT.COLOR_LIST_SELECTION); | |
| 680 selectionStart = translateOffset(selectionStart); | |
| 681 selectionEnd = translateOffset(selectionEnd); | |
| 682 } | |
| 30 | 683 RECT rect; |
| 213 | 684 Gdip.Brush selBrush; |
| 685 Gdip.Pen selPen; | |
| 686 Gdip.Brush selBrushFg; | |
| 30 | 687 |
| 29 | 688 if (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0) { |
| 689 if (gdip) { | |
| 30 | 690 auto bg = selectionBackground.handle; |
| 691 auto argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 692 auto color = Gdip.Color_new(argb); | |
| 213 | 693 selBrush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 694 Gdip.Color_delete(color); |
| 30 | 695 auto fg = selectionForeground.handle; |
| 29 | 696 argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 697 color = Gdip.Color_new(argb); | |
| 213 | 698 selBrushFg = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 699 selPen = cast(Gdip.Pen) Gdip.Pen_new( cast(Gdip.Brush)selBrushFg, 1); | |
| 29 | 700 Gdip.Color_delete(color); |
| 701 } else { | |
| 213 | 702 selBrush = cast(Gdip.Brush)OS.CreateSolidBrush(selectionBackground.handle); |
| 703 selPen = cast(Gdip.Pen)OS.CreatePen(OS.PS_SOLID, 1, selectionForeground.handle); | |
| 29 | 704 } |
| 705 } | |
| 706 int offset = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? -1 : 0; | |
| 707 OS.SetBkMode(hdc, OS.TRANSPARENT); | |
| 708 for (int line=0; line<runs.length; line++) { | |
| 709 int drawX = x + getLineIndent(line); | |
| 710 int drawY = y + lineY[line]; | |
| 711 StyleItem[] lineRuns = runs[line]; | |
| 213 | 712 int lineHeight = lineY[line+1] - lineY[line] - lineSpacing; |
| 29 | 713 if (flags !is 0 && (hasSelection || (flags & DWT.LAST_LINE_SELECTION) !is 0)) { |
| 714 bool extents = false; | |
| 715 if (line is runs.length - 1 && (flags & DWT.LAST_LINE_SELECTION) !is 0) { | |
| 716 extents = true; | |
| 717 } else { | |
| 718 StyleItem run = lineRuns[lineRuns.length - 1]; | |
| 719 if (run.lineBreak && !run.softBreak) { | |
| 720 if (selectionStart <= run.start && run.start <= selectionEnd) extents = true; | |
| 721 } else { | |
| 722 int endOffset = run.start + run.length - 1; | |
| 723 if (selectionStart <= endOffset && endOffset < selectionEnd && (flags & DWT.FULL_SELECTION) !is 0) { | |
| 724 extents = true; | |
| 725 } | |
| 726 } | |
| 727 } | |
| 728 if (extents) { | |
| 729 int width; | |
| 730 if ((flags & DWT.FULL_SELECTION) !is 0) { | |
| 731 width = OS.IsWin95 ? 0x7FFF : 0x6FFFFFF; | |
| 732 } else { | |
| 213 | 733 width = lineHeight / 3; |
| 29 | 734 } |
| 735 if (gdip) { | |
| 213 | 736 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX + lineWidth[line], drawY, width, lineHeight); |
| 29 | 737 } else { |
| 738 OS.SelectObject(hdc, selBrush); | |
| 213 | 739 OS.PatBlt(hdc, drawX + lineWidth[line], drawY, width, lineHeight, OS.PATCOPY); |
| 29 | 740 } |
| 741 } | |
| 742 } | |
| 743 if (drawX > clip.x + clip.width) continue; | |
| 744 if (drawX + lineWidth[line] < clip.x) continue; | |
| 745 int baseline = Math.max(0, this.ascent); | |
| 213 | 746 int lineUnderlinePos = 0; |
| 29 | 747 for (int i = 0; i < lineRuns.length; i++) { |
| 748 baseline = Math.max(baseline, lineRuns[i].ascent); | |
| 213 | 749 lineUnderlinePos = Math.min(lineUnderlinePos, lineRuns[i].underlinePos); |
| 29 | 750 } |
| 751 int alignmentX = drawX; | |
| 752 for (int i = 0; i < lineRuns.length; i++) { | |
| 753 StyleItem run = lineRuns[i]; | |
| 754 if (run.length is 0) continue; | |
| 755 if (drawX > clip.x + clip.width) break; | |
| 756 if (drawX + run.width >= clip.x) { | |
| 757 if (!run.lineBreak || run.softBreak) { | |
| 758 int end = run.start + run.length - 1; | |
| 759 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 760 if (fullSelection) { | |
| 761 if (gdip) { | |
| 213 | 762 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, drawX, drawY, run.width, lineHeight); |
| 29 | 763 } else { |
| 764 OS.SelectObject(hdc, selBrush); | |
| 213 | 765 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 766 } |
| 767 } else { | |
| 768 if (run.style !is null && run.style.background !is null) { | |
| 30 | 769 auto bg = run.style.background.handle; |
| 29 | 770 if (gdip) { |
| 771 int argb = ((alpha & 0xFF) << 24) | ((bg >> 16) & 0xFF) | (bg & 0xFF00) | ((bg & 0xFF) << 16); | |
| 30 | 772 auto color = Gdip.Color_new(argb); |
| 773 auto brush = Gdip.SolidBrush_new(color); | |
| 213 | 774 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)brush, drawX, drawY, run.width, lineHeight); |
| 29 | 775 Gdip.Color_delete(color); |
| 776 Gdip.SolidBrush_delete(brush); | |
| 777 } else { | |
| 30 | 778 auto hBrush = OS.CreateSolidBrush (bg); |
| 779 auto oldBrush = OS.SelectObject(hdc, hBrush); | |
| 213 | 780 OS.PatBlt(hdc, drawX, drawY, run.width, lineHeight, OS.PATCOPY); |
| 29 | 781 OS.SelectObject(hdc, oldBrush); |
| 782 OS.DeleteObject(hBrush); | |
| 783 } | |
| 784 } | |
| 785 bool partialSelection = hasSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 786 if (partialSelection) { | |
| 787 int selStart = Math.max(selectionStart, run.start) - run.start; | |
| 788 int selEnd = Math.min(selectionEnd, end) - run.start; | |
| 789 int cChars = run.length; | |
| 790 int gGlyphs = run.glyphCount; | |
| 30 | 791 int piX; |
| 792 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 793 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 794 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 795 rect.left = drawX + runX; |
| 796 rect.top = drawY; | |
| 30 | 797 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 798 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 799 rect.right = drawX + runX; |
| 213 | 800 rect.bottom = drawY + lineHeight; |
| 29 | 801 if (gdip) { |
| 213 | 802 if (rect.left > rect.right) { |
| 803 int tmp = rect.left; | |
| 804 rect.left = rect.right; | |
| 805 rect.right = tmp; | |
| 806 } | |
|
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
|
807 Gdip.Graphics_FillRectangle(gdipGraphics, cast(Gdip.Brush)selBrush, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top); |
| 29 | 808 } else { |
| 809 OS.SelectObject(hdc, selBrush); | |
| 810 OS.PatBlt(hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY); | |
| 811 } | |
| 812 } | |
| 813 } | |
| 814 } | |
| 815 } | |
| 816 drawX += run.width; | |
| 817 } | |
| 213 | 818 RECT* borderClip = null; |
| 29 | 819 drawX = alignmentX; |
| 820 for (int i = 0; i < lineRuns.length; i++) { | |
| 821 StyleItem run = lineRuns[i]; | |
| 822 if (run.length is 0) continue; | |
| 823 if (drawX > clip.x + clip.width) break; | |
| 824 if (drawX + run.width >= clip.x) { | |
| 825 if (!run.tab && (!run.lineBreak || run.softBreak) && !(run.style !is null && run.style.metrics !is null)) { | |
| 826 int end = run.start + run.length - 1; | |
| 827 bool fullSelection = hasSelection && selectionStart <= run.start && selectionEnd >= end; | |
| 828 bool partialSelection = hasSelection && !fullSelection && !(selectionStart > end || run.start > selectionEnd); | |
| 829 OS.SelectObject(hdc, getItemFont(run)); | |
| 830 int drawRunY = drawY + (baseline - run.ascent); | |
| 831 if (partialSelection) { | |
| 832 int selStart = Math.max(selectionStart, run.start) - run.start; | |
| 833 int selEnd = Math.min(selectionEnd, end) - run.start; | |
| 834 int cChars = run.length; | |
| 835 int gGlyphs = run.glyphCount; | |
| 30 | 836 int piX; |
| 837 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 838 OS.ScriptCPtoX(selStart, false, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 839 int runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 840 rect.left = drawX + runX; |
| 841 rect.top = drawY; | |
| 30 | 842 OS.ScriptCPtoX(selEnd, true, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); |
| 843 runX = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 844 rect.right = drawX + runX; |
| 845 rect.bottom = drawY + lineHeight; | |
| 846 } | |
| 847 if (gdip) { | |
| 848 OS.BeginPath(hdc); | |
| 30 | 849 OS.ScriptTextOut(hdc, run.psc, drawX, drawRunY, 0, null, &run.analysis , null, 0, run.glyphs, run.glyphCount, run.advances, run.justify, run.goffsets); |
| 29 | 850 OS.EndPath(hdc); |
| 851 int count = OS.GetPath(hdc, null, null, 0); | |
| 852 int[] points = new int[count*2]; | |
| 30 | 853 ubyte[] types = new ubyte[count]; |
| 854 OS.GetPath(hdc, cast(POINT*)points.ptr, types.ptr, count); | |
| 29 | 855 for (int typeIndex = 0; typeIndex < types.length; typeIndex++) { |
| 856 int newType = 0; | |
| 857 int type = types[typeIndex] & 0xFF; | |
| 858 switch (type & ~OS.PT_CLOSEFIGURE) { | |
| 859 case OS.PT_MOVETO: newType = Gdip.PathPointTypeStart; break; | |
| 860 case OS.PT_LINETO: newType = Gdip.PathPointTypeLine; break; | |
| 861 case OS.PT_BEZIERTO: newType = Gdip.PathPointTypeBezier; break; | |
| 81 | 862 default: |
| 29 | 863 } |
| 864 if ((type & OS.PT_CLOSEFIGURE) !is 0) newType |= Gdip.PathPointTypeCloseSubpath; | |
| 865 types[typeIndex] = cast(byte)newType; | |
| 866 } | |
| 213 | 867 auto path = Gdip.GraphicsPath_new(cast(Gdip.Point*)points.ptr, types.ptr, count, Gdip.FillModeAlternate); |
| 30 | 868 if (path is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 869 auto brush = foregroundBrush; | |
| 29 | 870 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
|
871 brush = cast(Gdip.Brush)selBrushFg; |
| 29 | 872 } else { |
| 873 if (run.style !is null && run.style.foreground !is null) { | |
| 30 | 874 auto fg = run.style.foreground.handle; |
| 29 | 875 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); |
| 30 | 876 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
|
877 brush = cast(Gdip.Brush)Gdip.SolidBrush_new(color); |
| 29 | 878 Gdip.Color_delete(color); |
| 879 } | |
| 880 } | |
| 881 int gstate = 0; | |
| 882 if (partialSelection) { | |
| 883 gdipRect.X = rect.left; | |
| 884 gdipRect.Y = rect.top; | |
| 885 gdipRect.Width = rect.right - rect.left; | |
| 886 gdipRect.Height = rect.bottom - rect.top; | |
| 887 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 888 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeExclude); |
| 29 | 889 } |
| 890 int antialias = Gdip.Graphics_GetSmoothingMode(gdipGraphics), textAntialias = 0; | |
| 891 int mode = Gdip.Graphics_GetTextRenderingHint(data.gdipGraphics); | |
| 892 switch (mode) { | |
| 893 case Gdip.TextRenderingHintSystemDefault: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 894 case Gdip.TextRenderingHintSingleBitPerPixel: | |
| 895 case Gdip.TextRenderingHintSingleBitPerPixelGridFit: textAntialias = Gdip.SmoothingModeNone; break; | |
| 896 case Gdip.TextRenderingHintAntiAlias: | |
| 897 case Gdip.TextRenderingHintAntiAliasGridFit: | |
| 898 case Gdip.TextRenderingHintClearTypeGridFit: textAntialias = Gdip.SmoothingModeAntiAlias; break; | |
| 81 | 899 default: |
| 29 | 900 } |
| 901 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); | |
| 902 int gstate2 = 0; | |
| 903 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 904 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 905 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 906 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 907 } | |
| 908 Gdip.Graphics_FillPath(gdipGraphics, brush, path); | |
| 909 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 910 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 911 } | |
| 912 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); | |
| 213 | 913 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, brush, null, alpha); |
| 29 | 914 if (partialSelection) { |
| 915 Gdip.Graphics_Restore(gdipGraphics, gstate); | |
| 916 gstate = Gdip.Graphics_Save(gdipGraphics); | |
| 30 | 917 Gdip.Graphics_SetClip(gdipGraphics, &gdipRect, Gdip.CombineModeIntersect); |
| 29 | 918 Gdip.Graphics_SetSmoothingMode(gdipGraphics, textAntialias); |
| 213 | 919 if ((data.style & DWT.MIRRORED) !is 0) { |
| 920 gstate2 = Gdip.Graphics_Save(gdipGraphics); | |
| 921 Gdip.Graphics_ScaleTransform(gdipGraphics, -1, 1, Gdip.MatrixOrderPrepend); | |
| 922 Gdip.Graphics_TranslateTransform(gdipGraphics, -2 * drawX - run.width, 0, Gdip.MatrixOrderPrepend); | |
| 923 } | |
| 924 Gdip.Graphics_FillPath(gdipGraphics, selBrushFg, path); | |
| 925 if ((data.style & DWT.MIRRORED) !is 0) { | |
| 926 Gdip.Graphics_Restore(gdipGraphics, gstate2); | |
| 927 } | |
| 29 | 928 Gdip.Graphics_SetSmoothingMode(gdipGraphics, antialias); |
| 213 | 929 drawLines(gdip, gdipGraphics, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, selBrushFg, &rect, alpha); |
| 29 | 930 Gdip.Graphics_Restore(gdipGraphics, gstate); |
| 931 } | |
| 213 | 932 borderClip = drawBorder(gdip, gdipGraphics, x, drawY, lineHeight, foregroundBrush, selBrushFg, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); |
| 29 | 933 Gdip.GraphicsPath_delete(path); |
|
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934 if ( brush !is cast(Gdip.Brush)selBrushFg && brush !is cast(Gdip.Brush)foregroundBrush) |
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935 Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); |
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936 } else { |
| 213 | 937 auto fg = foreground; |
|
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938 if (fullSelection) { |
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939 fg = selectionForeground.handle; |
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940 } else { |
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941 if (run.style !is null && run.style.foreground !is null) fg = run.style.foreground.handle; |
| 29 | 942 } |
| 943 OS.SetTextColor(hdc, fg); | |
| 30 | 944 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 | 945 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)fg, null, alpha); |
| 29 | 946 if (partialSelection && fg !is selectionForeground.handle) { |
| 947 OS.SetTextColor(hdc, selectionForeground.handle); | |
| 30 | 948 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 | 949 drawLines(gdip, hdc, x, drawY + baseline, lineUnderlinePos, drawY + lineHeight, lineRuns, i, cast(void*)selectionForeground.handle, &rect, alpha); |
| 29 | 950 } |
| 213 | 951 int selForeground = selectionForeground !is null ? selectionForeground.handle : 0; |
| 952 borderClip = drawBorder(gdip, hdc, x, drawY, lineHeight, cast(void*)foreground, cast(void*)selForeground, fullSelection, borderClip, partialSelection ? &rect : null, alpha, lineRuns, i, selectionStart, selectionEnd); | |
| 29 | 953 } |
| 954 } | |
| 955 } | |
| 956 drawX += run.width; | |
| 957 } | |
| 958 } | |
| 959 if (gdip) { | |
|
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960 if (selBrush !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrush); |
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961 if (selBrushFg !is null) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)selBrushFg); |
| 213 | 962 if (selPen !is null) Gdip.Pen_delete(selPen); |
| 29 | 963 } else { |
| 964 OS.RestoreDC(hdc, state); | |
| 30 | 965 if (gdipGraphics !is null) Gdip.Graphics_ReleaseHDC(gdipGraphics, hdc); |
| 966 if (selBrush !is null) OS.DeleteObject (selBrush); | |
| 967 if (selPen !is null) OS.DeleteObject (selPen); | |
| 29 | 968 } |
| 969 } | |
| 970 | |
| 213 | 971 void drawLines(bool advance, void* graphics, int x, int lineBaseline, int lineUnderlinePos, int lineBottom, StyleItem[] line, int index, void* color, RECT* clipRect, int alpha) { |
| 972 StyleItem run = line[index]; | |
| 973 TextStyle style = run.style; | |
| 974 if (style is null) return; | |
| 975 if (!style.underline && !style.strikeout) return; | |
| 976 int runX = x + run.x; | |
| 977 int underlineY = lineBaseline - lineUnderlinePos; | |
| 978 int strikeoutY = lineBaseline - run.strikeoutPos; | |
| 979 if (advance) { | |
| 980 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeNone); | |
| 981 auto brush = color; | |
| 982 if (style.underline) { | |
| 983 if (style.underlineColor !is null) { | |
| 984 int fg = style.underlineColor.handle; | |
| 985 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 986 auto gdiColor = Gdip.Color_new(argb); | |
| 987 brush = Gdip.SolidBrush_new(gdiColor); | |
| 988 Gdip.Color_delete(gdiColor); | |
| 989 } | |
| 990 switch (style.underlineStyle) { | |
| 991 case DWT.UNDERLINE_SQUIGGLE: | |
| 992 case DWT.UNDERLINE_ERROR: { | |
| 993 int squigglyThickness = 1; | |
| 994 int squigglyHeight = 2 * squigglyThickness; | |
| 995 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 996 int squigglyX = runX; | |
| 997 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 998 squigglyX = x + line[i - 1].x; | |
| 999 } | |
| 1000 int gstate = 0; | |
| 1001 if (clipRect is null) { | |
| 1002 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1003 Gdip.Rect gdipRect; | |
| 1004 gdipRect.X = runX; | |
| 1005 gdipRect.Y = squigglyY; | |
| 1006 gdipRect.Width = run.width + 1; | |
| 1007 gdipRect.Height = squigglyY + squigglyHeight + 1; | |
| 1008 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1009 } | |
| 1010 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1011 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, squigglyThickness); | |
| 1012 Gdip.Graphics_DrawLines(cast(Gdip.Graphics)graphics, pen, cast(Gdip.Point*)points.ptr, points.length / 2); | |
| 1013 Gdip.Pen_delete(pen); | |
| 1014 if (gstate !is 0) Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1015 break; | |
| 1016 } | |
| 1017 case DWT.UNDERLINE_SINGLE: | |
| 1018 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1019 break; | |
| 1020 case DWT.UNDERLINE_DOUBLE: | |
| 1021 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY, run.width, run.underlineThickness); | |
| 1022 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, underlineY + run.underlineThickness * 2, run.width, run.underlineThickness); | |
| 1023 break; | |
| 1024 case UNDERLINE_IME_THICK: | |
| 1025 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX - run.underlineThickness, underlineY, run.width, run.underlineThickness * 2); | |
| 1026 break; | |
| 1027 case UNDERLINE_IME_DOT: | |
| 1028 case UNDERLINE_IME_DASH: { | |
| 1029 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, 1); | |
| 1030 int dashStyle = style.underlineStyle is UNDERLINE_IME_DOT ? Gdip.DashStyleDot : Gdip.DashStyleDash; | |
| 1031 Gdip.Pen_SetDashStyle(pen, dashStyle); | |
| 1032 Gdip.Graphics_DrawLine(cast(Gdip.Graphics)graphics, pen, runX, underlineY, runX + run.width, underlineY); | |
| 1033 Gdip.Pen_delete(pen); | |
| 1034 break; | |
| 1035 } | |
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1036 default: |
| 213 | 1037 } |
| 1038 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1039 } | |
| 1040 if (style.strikeout) { | |
| 1041 if (style.strikeoutColor !is null) { | |
| 1042 int fg = style.strikeoutColor.handle; | |
| 1043 int argb = ((alpha & 0xFF) << 24) | ((fg >> 16) & 0xFF) | (fg & 0xFF00) | ((fg & 0xFF) << 16); | |
| 1044 auto gdiColor = Gdip.Color_new(argb); | |
| 1045 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1046 Gdip.Color_delete(gdiColor); | |
| 1047 } | |
| 1048 Gdip.Graphics_FillRectangle(cast(Gdip.Graphics)graphics, cast(Gdip.Brush)brush, runX, strikeoutY, run.width, run.strikeoutThickness); | |
| 1049 if (brush !is color) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1050 } | |
| 1051 Gdip.Graphics_SetPixelOffsetMode(cast(Gdip.Graphics)graphics, Gdip.PixelOffsetModeHalf); | |
| 1052 } else { | |
| 1053 uint colorRefUnderline = cast(uint)color; | |
| 1054 uint colorRefStrikeout = cast(uint)color; | |
| 1055 int /*long*/ brushUnderline = 0; | |
| 1056 int /*long*/ brushStrikeout = 0; | |
| 1057 RECT rect; | |
| 1058 if (style.underline) { | |
| 1059 if (style.underlineColor !is null) { | |
| 1060 colorRefUnderline = style.underlineColor.handle; | |
| 1061 } | |
| 1062 switch (style.underlineStyle) { | |
| 1063 case DWT.UNDERLINE_SQUIGGLE: | |
| 1064 case DWT.UNDERLINE_ERROR: { | |
| 1065 int squigglyThickness = 1; | |
| 1066 int squigglyHeight = 2 * squigglyThickness; | |
| 1067 int squigglyY = Math.min(underlineY - squigglyHeight / 2, lineBottom - squigglyHeight - 1); | |
| 1068 int squigglyX = runX; | |
| 1069 for (int i = index; i > 0 && style.isAdherentUnderline(line[i - 1].style); i--) { | |
| 1070 squigglyX = x + line[i - 1].x; | |
| 1071 } | |
| 1072 int state = OS.SaveDC(graphics); | |
| 1073 if (clipRect !is null) { | |
| 1074 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1075 } else { | |
| 1076 OS.IntersectClipRect(graphics, runX, squigglyY, runX + run.width + 1, squigglyY + squigglyHeight + 1); | |
| 1077 } | |
| 1078 int[] points = computePolyline(squigglyX, squigglyY, runX + run.width, squigglyY + squigglyHeight); | |
| 1079 auto pen = OS.CreatePen(OS.PS_SOLID, squigglyThickness, colorRefUnderline); | |
| 1080 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1081 OS.Polyline(graphics, cast(POINT*)points.ptr, points.length / 2); | |
| 1082 int length_ = points.length; | |
| 1083 if (length_ >= 2 && squigglyThickness <= 1) { | |
| 1084 OS.SetPixel (graphics, points[length_ - 2], points[length_ - 1], colorRefUnderline); | |
| 1085 } | |
| 1086 OS.RestoreDC(graphics, state); | |
| 1087 OS.SelectObject(graphics, oldPen); | |
| 1088 OS.DeleteObject(pen); | |
| 1089 break; | |
| 1090 } | |
| 1091 case DWT.UNDERLINE_SINGLE: | |
| 1092 brushUnderline = cast(uint) OS.CreateSolidBrush(colorRefUnderline); | |
| 1093 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1094 if (clipRect !is null) { | |
| 1095 rect.left = Math.max(rect.left, clipRect.left); | |
| 1096 rect.right = Math.min(rect.right, clipRect.right); | |
| 1097 } | |
| 1098 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1099 break; | |
| 1100 case DWT.UNDERLINE_DOUBLE: | |
| 1101 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1102 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1103 if (clipRect !is null) { | |
| 1104 rect.left = Math.max(rect.left, clipRect.left); | |
| 1105 rect.right = Math.min(rect.right, clipRect.right); | |
| 1106 } | |
| 1107 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1108 OS.SetRect(&rect, runX, underlineY + run.underlineThickness * 2, runX + run.width, underlineY + run.underlineThickness * 3); | |
| 1109 if (clipRect !is null) { | |
| 1110 rect.left = Math.max(rect.left, clipRect.left); | |
| 1111 rect.right = Math.min(rect.right, clipRect.right); | |
| 1112 } | |
| 1113 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1114 break; | |
| 1115 case UNDERLINE_IME_THICK: | |
| 1116 brushUnderline = cast(uint)OS.CreateSolidBrush(colorRefUnderline); | |
| 1117 OS.SetRect(&rect, runX, underlineY - run.underlineThickness, runX + run.width, underlineY + run.underlineThickness); | |
| 1118 if (clipRect !is null) { | |
| 1119 rect.left = Math.max(rect.left, clipRect.left); | |
| 1120 rect.right = Math.min(rect.right, clipRect.right); | |
| 1121 } | |
| 1122 OS.FillRect(graphics, &rect, cast(void*)brushUnderline); | |
| 1123 break; | |
| 1124 case UNDERLINE_IME_DASH: | |
| 1125 case UNDERLINE_IME_DOT: { | |
| 1126 underlineY = lineBaseline + run.descent; | |
| 1127 int penStyle = style.underlineStyle is UNDERLINE_IME_DASH ? OS.PS_DASH : OS.PS_DOT; | |
| 1128 auto pen = OS.CreatePen(penStyle, 1, colorRefUnderline); | |
| 1129 auto oldPen = OS.SelectObject(graphics, pen); | |
| 1130 OS.SetRect(&rect, runX, underlineY, runX + run.width, underlineY + run.underlineThickness); | |
| 1131 if (clipRect !is null) { | |
| 1132 rect.left = Math.max(rect.left, clipRect.left); | |
| 1133 rect.right = Math.min(rect.right, clipRect.right); | |
| 1134 } | |
| 1135 OS.MoveToEx(graphics, rect.left, rect.top, null); | |
| 1136 OS.LineTo(graphics, rect.right, rect.top); | |
| 1137 OS.SelectObject(graphics, oldPen); | |
| 1138 OS.DeleteObject(pen); | |
| 1139 break; | |
| 1140 } | |
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1141 default: |
| 213 | 1142 } |
| 1143 } | |
| 1144 if (style.strikeout) { | |
| 1145 if (style.strikeoutColor !is null) { | |
| 1146 colorRefStrikeout = style.strikeoutColor.handle; | |
| 1147 } | |
| 1148 if (brushUnderline !is 0 && colorRefStrikeout is colorRefUnderline) { | |
| 1149 brushStrikeout = brushUnderline; | |
| 1150 } else { | |
| 1151 brushStrikeout = cast(int) OS.CreateSolidBrush(colorRefStrikeout); | |
| 1152 } | |
| 1153 OS.SetRect(&rect, runX, strikeoutY, runX + run.width, strikeoutY + run.strikeoutThickness); | |
| 1154 if (clipRect !is null) { | |
| 1155 rect.left = Math.max(rect.left, clipRect.left); | |
| 1156 rect.right = Math.min(rect.right, clipRect.right); | |
| 1157 } | |
| 1158 OS.FillRect(graphics, &rect, cast(void*)brushStrikeout); | |
| 1159 } | |
| 1160 if (brushUnderline !is 0) OS.DeleteObject(cast(void*)brushUnderline); | |
| 1161 if (brushStrikeout !is 0 && brushStrikeout !is brushUnderline) OS.DeleteObject(cast(void*)brushStrikeout); | |
| 1162 } | |
| 1163 } | |
| 1164 | |
| 1165 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) { | |
| 1166 StyleItem run = line[index]; | |
| 1167 TextStyle style = run.style; | |
| 1168 if (style is null) return null; | |
| 1169 if (style.borderStyle is DWT.NONE) return null; | |
| 1170 if (rect !is null) { | |
| 1171 if (clipRect is null) { | |
| 1172 clipRect = new RECT (); | |
| 1173 OS.SetRect(clipRect, -1, rect.top, -1, rect.bottom); | |
| 1174 } | |
| 1175 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1176 if (run.start <= selectionStart && selectionStart <= run.start + run.length) { | |
| 1177 if (run.analysis.fRTL ^ isRTL) { | |
| 1178 clipRect.right = rect.left; | |
| 1179 } else { | |
| 1180 clipRect.left = rect.left; | |
| 1181 } | |
| 1182 } | |
| 1183 if (run.start <= selectionEnd && selectionEnd <= run.start + run.length) { | |
| 1184 if (run.analysis.fRTL ^ isRTL) { | |
| 1185 clipRect.left = rect.right; | |
| 1186 } else { | |
| 1187 clipRect.right = rect.right; | |
| 1188 } | |
| 1189 } | |
| 1190 } | |
| 1191 if (index + 1 >= line.length || !style.isAdherentBorder(line[index + 1].style)) { | |
| 1192 int left = run.x; | |
| 1193 for (int i = index; i > 0 && style.isAdherentBorder(line[i - 1].style); i--) { | |
| 1194 left = line[i - 1].x; | |
| 1195 } | |
| 1196 if (advance) { | |
| 1197 auto brush = color; | |
| 1198 int customColor = -1; | |
| 1199 if (style.borderColor !is null) { | |
| 1200 customColor = style.borderColor.handle; | |
| 1201 } else { | |
| 1202 if (style.foreground !is null) { | |
| 1203 customColor = style.foreground.handle; | |
| 1204 } | |
| 1205 if (fullSelection && clipRect is null) { | |
| 1206 customColor = -1; | |
| 1207 brush = selectionColor; | |
| 1208 } | |
| 1209 } | |
| 1210 if (customColor !is -1) { | |
| 1211 int argb = ((alpha & 0xFF) << 24) | ((customColor >> 16) & 0xFF) | (customColor & 0xFF00) | ((customColor & 0xFF) << 16); | |
| 1212 auto gdiColor = Gdip.Color_new(argb); | |
| 1213 brush = Gdip.SolidBrush_new(gdiColor); | |
| 1214 Gdip.Color_delete(gdiColor); | |
| 1215 } | |
| 1216 int lineWidth = 1; | |
| 1217 int lineStyle = Gdip.DashStyleSolid; | |
| 1218 switch (style.borderStyle) { | |
| 1219 case DWT.BORDER_SOLID: break; | |
| 1220 case DWT.BORDER_DASH: lineStyle = Gdip.DashStyleDash; break; | |
| 1221 case DWT.BORDER_DOT: lineStyle = Gdip.DashStyleDot; break; | |
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1222 default: |
| 213 | 1223 } |
| 1224 auto pen = Gdip.Pen_new(cast(Gdip.Brush)brush, lineWidth); | |
| 1225 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1226 float gdipXOffset = 0.5f, gdipYOffset = 0.5f; | |
| 1227 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, gdipXOffset, gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1228 if (style.borderColor is null && clipRect !is null) { | |
| 1229 int gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1230 if (clipRect.left is -1) clipRect.left = 0; | |
| 1231 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1232 Gdip.Rect gdipRect; | |
| 1233 gdipRect.X = clipRect.left; | |
| 1234 gdipRect.Y = clipRect.top; | |
| 1235 gdipRect.Width = clipRect.right - clipRect.left; | |
| 1236 gdipRect.Height = clipRect.bottom - clipRect.top; | |
| 1237 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeExclude); | |
| 1238 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1239 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1240 gstate = Gdip.Graphics_Save(cast(Gdip.Graphics)graphics); | |
| 1241 Gdip.Graphics_SetClip(cast(Gdip.Graphics)graphics, &gdipRect, Gdip.CombineModeIntersect); | |
| 1242 auto selPen = Gdip.Pen_new(cast(Gdip.Brush)selectionColor, lineWidth); | |
| 1243 Gdip.Pen_SetDashStyle(pen, lineStyle); | |
| 1244 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, selPen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1245 Gdip.Pen_delete(selPen); | |
| 1246 Gdip.Graphics_Restore(cast(Gdip.Graphics)graphics, gstate); | |
| 1247 } else { | |
| 1248 Gdip.Graphics_DrawRectangle(cast(Gdip.Graphics)graphics, pen, x + left, y, run.x + run.width - left - 1, lineHeight - 1); | |
| 1249 } | |
| 1250 Gdip.Graphics_TranslateTransform(cast(Gdip.Graphics)graphics, -gdipXOffset, -gdipYOffset, Gdip.MatrixOrderPrepend); | |
| 1251 Gdip.Pen_delete(pen); | |
| 1252 if (customColor !is -1) Gdip.SolidBrush_delete(cast(Gdip.SolidBrush)brush); | |
| 1253 } else { | |
| 1254 if (style.borderColor !is null) { | |
| 1255 color = cast(void*)style.borderColor.handle; | |
| 1256 } else { | |
| 1257 if (style.foreground !is null) { | |
| 1258 color = cast(void*)style.foreground.handle; | |
| 1259 } | |
| 1260 if (fullSelection && clipRect is null) { | |
| 1261 color = selectionColor; | |
| 1262 } | |
| 1263 } | |
| 1264 int lineWidth = 1; | |
| 1265 int lineStyle = OS.PS_SOLID; | |
| 1266 switch (style.borderStyle) { | |
| 1267 case DWT.BORDER_SOLID: break; | |
| 1268 case DWT.BORDER_DASH: lineStyle = OS.PS_DASH; break; | |
| 1269 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
|
1270 default: |
| 213 | 1271 } |
| 1272 LOGBRUSH logBrush; | |
| 1273 logBrush.lbStyle = OS.BS_SOLID; | |
| 1274 logBrush.lbColor = cast(uint)color; | |
| 1275 auto newPen = OS.ExtCreatePen(lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1276 auto oldPen = OS.SelectObject(graphics, newPen); | |
| 1277 auto oldBrush = OS.SelectObject(graphics, OS.GetStockObject(OS.NULL_BRUSH)); | |
| 1278 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1279 if (style.borderColor is null && clipRect !is null && color !is selectionColor) { | |
| 1280 int state = OS.SaveDC(graphics); | |
| 1281 if (clipRect.left is -1) clipRect.left = 0; | |
| 1282 if (clipRect.right is -1) clipRect.right = 0x7ffff; | |
| 1283 OS.IntersectClipRect(graphics, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom); | |
| 1284 logBrush.lbColor = cast(uint)selectionColor; | |
| 1285 auto selPen = OS.ExtCreatePen (lineStyle | OS.PS_GEOMETRIC, Math.max(1, lineWidth), &logBrush, 0, null); | |
| 1286 OS.SelectObject(graphics, selPen); | |
| 1287 OS.Rectangle(graphics, x + left, y, x + run.x + run.width, y + lineHeight); | |
| 1288 OS.RestoreDC(graphics, state); | |
| 1289 OS.SelectObject(graphics, newPen); | |
| 1290 OS.DeleteObject(selPen); | |
| 1291 } | |
| 1292 OS.SelectObject(graphics, oldBrush); | |
| 1293 OS.SelectObject(graphics, oldPen); | |
| 1294 OS.DeleteObject(newPen); | |
| 1295 } | |
| 1296 return null; | |
| 1297 } | |
| 1298 return clipRect; | |
| 1299 } | |
| 1300 | |
| 1301 int[] computePolyline(int left, int top, int right, int bottom) { | |
| 1302 int height = bottom - top; // can be any number | |
| 1303 int width = 2 * height; // must be even | |
| 1304 int peaks = Compatibility.ceil(right - left, width); | |
| 1305 if (peaks is 0 && right - left > 2) { | |
| 1306 peaks = 1; | |
| 1307 } | |
| 1308 int length_ = ((2 * peaks) + 1) * 2; | |
| 1309 if (length_ < 0) return new int[0]; | |
| 1310 | |
| 1311 int[] coordinates = new int[length_]; | |
| 1312 for (int i = 0; i < peaks; i++) { | |
| 1313 int index = 4 * i; | |
| 1314 coordinates[index] = left + (width * i); | |
| 1315 coordinates[index+1] = bottom; | |
| 1316 coordinates[index+2] = coordinates[index] + width / 2; | |
| 1317 coordinates[index+3] = top; | |
| 1318 } | |
| 1319 coordinates[length_-2] = left + (width * peaks); | |
| 1320 coordinates[length_-1] = bottom; | |
| 1321 return coordinates; | |
| 1322 } | |
| 1323 | |
| 29 | 1324 void freeRuns () { |
| 1325 if (allRuns is null) return; | |
| 1326 for (int i=0; i<allRuns.length; i++) { | |
| 1327 StyleItem run = allRuns[i]; | |
| 1328 run.free(); | |
| 1329 } | |
| 1330 allRuns = null; | |
| 1331 runs = null; | |
| 1332 segmentsText = null; | |
| 1333 } | |
| 1334 | |
| 1335 /** | |
| 1336 * Returns the receiver's horizontal text alignment, which will be one | |
| 1337 * of <code>DWT.LEFT</code>, <code>DWT.CENTER</code> or | |
| 1338 * <code>DWT.RIGHT</code>. | |
| 1339 * | |
| 1340 * @return the alignment used to positioned text horizontally | |
| 1341 * | |
| 1342 * @exception DWTException <ul> | |
| 1343 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1344 * </ul> | |
| 1345 */ | |
| 1346 public int getAlignment () { | |
| 1347 checkLayout(); | |
| 1348 return alignment; | |
| 1349 } | |
| 1350 | |
| 1351 /** | |
| 1352 * Returns the ascent of the receiver. | |
| 1353 * | |
| 1354 * @return the ascent | |
| 1355 * | |
| 1356 * @exception DWTException <ul> | |
| 1357 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1358 * </ul> | |
| 1359 * | |
| 1360 * @see #getDescent() | |
| 1361 * @see #setDescent(int) | |
| 1362 * @see #setAscent(int) | |
| 1363 * @see #getLineMetrics(int) | |
| 1364 */ | |
| 1365 public int getAscent () { | |
| 1366 checkLayout(); | |
| 1367 return ascent; | |
| 1368 } | |
| 1369 | |
| 1370 /** | |
| 213 | 1371 * Returns the bounds of the receiver. The width returned is either the |
| 1372 * width of the longest line or the width set using {@link TextLayout#setWidth(int)}. | |
| 1373 * To obtain the text bounds of a line use {@link TextLayout#getLineBounds(int)}. | |
| 29 | 1374 * |
| 1375 * @return the bounds of the receiver | |
| 1376 * | |
| 1377 * @exception DWTException <ul> | |
| 1378 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1379 * </ul> | |
| 213 | 1380 * |
| 1381 * @see #setWidth(int) | |
| 1382 * @see #getLineBounds(int) | |
| 29 | 1383 */ |
| 1384 public Rectangle getBounds () { | |
| 1385 checkLayout(); | |
| 1386 computeRuns(null); | |
| 1387 int width = 0; | |
| 1388 if (wrapWidth !is -1) { | |
| 1389 width = wrapWidth; | |
| 1390 } else { | |
| 1391 for (int line=0; line<runs.length; line++) { | |
| 1392 width = Math.max(width, lineWidth[line] + getLineIndent(line)); | |
| 1393 } | |
| 1394 } | |
| 1395 return new Rectangle (0, 0, width, lineY[lineY.length - 1]); | |
| 1396 } | |
| 1397 | |
| 1398 /** | |
| 1399 * Returns the bounds for the specified range of characters. The | |
| 1400 * bounds is the smallest rectangle that encompasses all characters | |
| 1401 * in the range. The start and end offsets are inclusive and will be | |
| 1402 * clamped if out of range. | |
| 1403 * | |
| 1404 * @param start the start offset | |
| 1405 * @param end the end offset | |
| 1406 * @return the bounds of the character range | |
| 1407 * | |
| 1408 * @exception DWTException <ul> | |
| 1409 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1410 * </ul> | |
| 1411 */ | |
| 1412 public Rectangle getBounds (int start, int end) { | |
| 1413 checkLayout(); | |
| 1414 computeRuns(null); | |
| 227 | 1415 int length = text.length; |
| 1416 if (length is 0) return new Rectangle(0, 0, 0, 0); | |
| 29 | 1417 if (start > end) return new Rectangle(0, 0, 0, 0); |
| 227 | 1418 start = Math.min(Math.max(0, start), length - 1); |
| 1419 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 1420 start = translateOffset(start); |
| 1421 end = translateOffset(end); | |
| 1422 int left = 0x7fffffff, right = 0; | |
| 1423 int top = 0x7fffffff, bottom = 0; | |
| 1424 bool isRTL = (orientation & DWT.RIGHT_TO_LEFT) !is 0; | |
| 1425 for (int i = 0; i < allRuns.length - 1; i++) { | |
| 1426 StyleItem run = allRuns[i]; | |
| 1427 int runEnd = run.start + run.length; | |
| 1428 if (runEnd <= start) continue; | |
| 1429 if (run.start > end) break; | |
| 1430 int runLead = run.x; | |
| 1431 int runTrail = run.x + run.width; | |
| 1432 if (run.start <= start && start < runEnd) { | |
| 1433 int cx = 0; | |
| 1434 if (run.style !is null && run.style.metrics !is null) { | |
| 1435 GlyphMetrics metrics = run.style.metrics; | |
| 1436 cx = metrics.width * (start - run.start); | |
| 1437 } else if (!run.tab) { | |
| 30 | 1438 int piX; |
| 1439 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1440 OS.ScriptCPtoX(start - run.start, false, run.length, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1441 cx = isRTL ? run.width - piX : piX; | |
| 29 | 1442 } |
| 1443 if (run.analysis.fRTL ^ isRTL) { | |
| 1444 runTrail = run.x + cx; | |
| 1445 } else { | |
| 1446 runLead = run.x + cx; | |
| 1447 } | |
| 1448 } | |
| 1449 if (run.start <= end && end < runEnd) { | |
| 1450 int cx = run.width; | |
| 1451 if (run.style !is null && run.style.metrics !is null) { | |
| 1452 GlyphMetrics metrics = run.style.metrics; | |
| 1453 cx = metrics.width * (end - run.start + 1); | |
| 1454 } else if (!run.tab) { | |
| 30 | 1455 int piX; |
| 1456 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1457 OS.ScriptCPtoX(end - run.start, true, run.length, run.glyphCount, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1458 cx = isRTL ? run.width - piX : piX; | |
| 29 | 1459 } |
| 1460 if (run.analysis.fRTL ^ isRTL) { | |
| 1461 runLead = run.x + cx; | |
| 1462 } else { | |
| 1463 runTrail = run.x + cx; | |
| 1464 } | |
| 1465 } | |
| 1466 int lineIndex = 0; | |
| 1467 while (lineIndex < runs.length && lineOffset[lineIndex + 1] <= run.start) { | |
| 1468 lineIndex++; | |
| 1469 } | |
| 1470 left = Math.min(left, runLead); | |
| 1471 right = Math.max(right, runTrail); | |
| 1472 top = Math.min(top, lineY[lineIndex]); | |
| 1473 bottom = Math.max(bottom, lineY[lineIndex + 1] - lineSpacing); | |
| 1474 } | |
| 1475 return new Rectangle(left, top, right - left, bottom - top); | |
| 1476 } | |
| 1477 | |
| 1478 /** | |
| 1479 * Returns the descent of the receiver. | |
| 1480 * | |
| 1481 * @return the descent | |
| 1482 * | |
| 1483 * @exception DWTException <ul> | |
| 1484 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1485 * </ul> | |
| 1486 * | |
| 1487 * @see #getAscent() | |
| 1488 * @see #setAscent(int) | |
| 1489 * @see #setDescent(int) | |
| 1490 * @see #getLineMetrics(int) | |
| 1491 */ | |
| 1492 public int getDescent () { | |
| 1493 checkLayout(); | |
| 1494 return descent; | |
| 1495 } | |
| 1496 | |
| 1497 /** | |
| 1498 * Returns the default font currently being used by the receiver | |
| 1499 * to draw and measure text. | |
| 1500 * | |
| 1501 * @return the receiver's font | |
| 1502 * | |
| 1503 * @exception DWTException <ul> | |
| 1504 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1505 * </ul> | |
| 1506 */ | |
| 1507 public Font getFont () { | |
| 1508 checkLayout(); | |
| 1509 return font; | |
| 1510 } | |
| 1511 | |
| 1512 /** | |
| 1513 * Returns the receiver's indent. | |
| 1514 * | |
| 1515 * @return the receiver's indent | |
| 1516 * | |
| 1517 * @exception DWTException <ul> | |
| 1518 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1519 * </ul> | |
| 1520 * | |
| 1521 * @since 3.2 | |
| 1522 */ | |
| 1523 public int getIndent () { | |
| 1524 checkLayout(); | |
| 1525 return indent; | |
| 1526 } | |
| 1527 | |
| 1528 /** | |
| 1529 * Returns the receiver's justification. | |
| 1530 * | |
| 1531 * @return the receiver's justification | |
| 1532 * | |
| 1533 * @exception DWTException <ul> | |
| 1534 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1535 * </ul> | |
| 1536 * | |
| 1537 * @since 3.2 | |
| 1538 */ | |
| 1539 public bool getJustify () { | |
| 1540 checkLayout(); | |
| 1541 return justify; | |
| 1542 } | |
| 1543 | |
| 30 | 1544 HFONT getItemFont (StyleItem item) { |
| 1545 if (item.fallbackFont !is null) return cast(HFONT) item.fallbackFont; | |
| 29 | 1546 if (item.style !is null && item.style.font !is null) { |
| 1547 return item.style.font.handle; | |
| 1548 } | |
| 1549 if (this.font !is null) { | |
| 1550 return this.font.handle; | |
| 1551 } | |
| 213 | 1552 return device.systemFont.handle; |
| 29 | 1553 } |
| 1554 | |
| 1555 /** | |
| 1556 * Returns the embedding level for the specified character offset. The | |
| 1557 * embedding level is usually used to determine the directionality of a | |
| 1558 * character in bidirectional text. | |
| 1559 * | |
| 1560 * @param offset the character offset | |
| 1561 * @return the embedding level | |
| 1562 * | |
| 1563 * @exception IllegalArgumentException <ul> | |
| 1564 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1565 * </ul> | |
| 1566 * @exception DWTException <ul> | |
| 1567 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1568 */ | |
| 1569 public int getLevel (int offset) { | |
| 1570 checkLayout(); | |
| 1571 computeRuns(null); | |
| 227 | 1572 int length = text.length; |
| 1573 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1574 offset = translateOffset(offset); |
| 1575 for (int i=1; i<allRuns.length; i++) { | |
| 1576 if (allRuns[i].start > offset) { | |
| 1577 return allRuns[i - 1].analysis.s.uBidiLevel; | |
| 1578 } | |
| 1579 } | |
| 1580 return (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? 1 : 0; | |
| 1581 } | |
| 1582 | |
| 1583 /** | |
| 1584 * Returns the bounds of the line for the specified line index. | |
| 1585 * | |
| 1586 * @param lineIndex the line index | |
| 1587 * @return the line bounds | |
| 1588 * | |
| 1589 * @exception IllegalArgumentException <ul> | |
| 1590 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1591 * </ul> | |
| 1592 * @exception DWTException <ul> | |
| 1593 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1594 * </ul> | |
| 1595 */ | |
| 1596 public Rectangle getLineBounds(int lineIndex) { | |
| 1597 checkLayout(); | |
| 1598 computeRuns(null); | |
| 1599 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1600 int x = getLineIndent(lineIndex); | |
| 1601 int y = lineY[lineIndex]; | |
| 1602 int width = lineWidth[lineIndex]; | |
| 1603 int height = lineY[lineIndex + 1] - y - lineSpacing; | |
| 1604 return new Rectangle (x, y, width, height); | |
| 1605 } | |
| 1606 | |
| 1607 /** | |
| 1608 * Returns the receiver's line count. This includes lines caused | |
| 1609 * by wrapping. | |
| 1610 * | |
| 1611 * @return the line count | |
| 1612 * | |
| 1613 * @exception DWTException <ul> | |
| 1614 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1615 * </ul> | |
| 1616 */ | |
| 1617 public int getLineCount () { | |
| 1618 checkLayout(); | |
| 1619 computeRuns(null); | |
| 1620 return runs.length; | |
| 1621 } | |
| 1622 | |
| 1623 int getLineIndent (int lineIndex) { | |
| 1624 int lineIndent = 0; | |
| 1625 if (lineIndex is 0) { | |
| 1626 lineIndent = indent; | |
| 1627 } else { | |
| 1628 StyleItem[] previousLine = runs[lineIndex - 1]; | |
| 1629 StyleItem previousRun = previousLine[previousLine.length - 1]; | |
| 1630 if (previousRun.lineBreak && !previousRun.softBreak) { | |
| 1631 lineIndent = indent; | |
| 1632 } | |
| 1633 } | |
| 1634 if (wrapWidth !is -1) { | |
| 1635 bool partialLine = true; | |
| 1636 if (justify) { | |
| 1637 StyleItem[] lineRun = runs[lineIndex]; | |
| 1638 if (lineRun[lineRun.length - 1].softBreak) { | |
| 1639 partialLine = false; | |
| 1640 } | |
| 1641 } | |
| 1642 if (partialLine) { | |
| 1643 int lineWidth = this.lineWidth[lineIndex] + lineIndent; | |
| 1644 switch (alignment) { | |
| 1645 case DWT.CENTER: lineIndent += (wrapWidth - lineWidth) / 2; break; | |
| 1646 case DWT.RIGHT: lineIndent += wrapWidth - lineWidth; break; | |
| 81 | 1647 default: |
| 29 | 1648 } |
| 1649 } | |
| 1650 } | |
| 1651 return lineIndent; | |
| 1652 } | |
| 1653 | |
| 1654 /** | |
| 1655 * Returns the index of the line that contains the specified | |
| 1656 * character offset. | |
| 1657 * | |
| 1658 * @param offset the character offset | |
| 1659 * @return the line index | |
| 1660 * | |
| 1661 * @exception IllegalArgumentException <ul> | |
| 1662 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 1663 * </ul> | |
| 1664 * @exception DWTException <ul> | |
| 1665 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1666 * </ul> | |
| 1667 */ | |
| 1668 public int getLineIndex (int offset) { | |
| 1669 checkLayout(); | |
| 1670 computeRuns(null); | |
| 227 | 1671 int length = text.length; |
| 1672 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 29 | 1673 offset = translateOffset(offset); |
| 1674 for (int line=0; line<runs.length; line++) { | |
| 1675 if (lineOffset[line + 1] > offset) { | |
| 1676 return line; | |
| 1677 } | |
| 1678 } | |
| 1679 return runs.length - 1; | |
| 1680 } | |
| 1681 | |
| 1682 /** | |
| 1683 * Returns the font metrics for the specified line index. | |
| 1684 * | |
| 1685 * @param lineIndex the line index | |
| 1686 * @return the font metrics | |
| 1687 * | |
| 1688 * @exception IllegalArgumentException <ul> | |
| 1689 * <li>ERROR_INVALID_ARGUMENT - if the line index is out of range</li> | |
| 1690 * </ul> | |
| 1691 * @exception DWTException <ul> | |
| 1692 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1693 * </ul> | |
| 1694 */ | |
| 1695 public FontMetrics getLineMetrics (int lineIndex) { | |
| 1696 checkLayout(); | |
| 1697 computeRuns(null); | |
| 1698 if (!(0 <= lineIndex && lineIndex < runs.length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 30 | 1699 auto hDC = device.internal_new_GC(null); |
| 1700 auto srcHdc = OS.CreateCompatibleDC(hDC); | |
| 29 | 1701 TEXTMETRIC lptm; |
| 213 | 1702 OS.SelectObject(srcHdc, font !is null ? font.handle : device.systemFont.handle); |
| 29 | 1703 OS.GetTextMetrics(srcHdc, &lptm); |
| 1704 OS.DeleteDC(srcHdc); | |
| 1705 device.internal_dispose_GC(hDC, null); | |
| 1706 | |
| 1707 int ascent = Math.max(lptm.tmAscent, this.ascent); | |
| 1708 int descent = Math.max(lptm.tmDescent, this.descent); | |
| 1709 int leading = lptm.tmInternalLeading; | |
| 30 | 1710 if (text.length !is 0) { |
| 29 | 1711 StyleItem[] lineRuns = runs[lineIndex]; |
| 1712 for (int i = 0; i<lineRuns.length; i++) { | |
| 1713 StyleItem run = lineRuns[i]; | |
| 1714 if (run.ascent > ascent) { | |
| 1715 ascent = run.ascent; | |
| 1716 leading = run.leading; | |
| 1717 } | |
| 1718 descent = Math.max(descent, run.descent); | |
| 1719 } | |
| 1720 } | |
| 1721 lptm.tmAscent = ascent; | |
| 1722 lptm.tmDescent = descent; | |
| 1723 lptm.tmHeight = ascent + descent; | |
| 1724 lptm.tmInternalLeading = leading; | |
| 1725 lptm.tmAveCharWidth = 0; | |
| 30 | 1726 return FontMetrics.win32_new(&lptm); |
| 29 | 1727 } |
| 1728 | |
| 1729 /** | |
| 1730 * Returns the line offsets. Each value in the array is the | |
| 1731 * offset for the first character in a line except for the last | |
| 1732 * value, which contains the length of the text. | |
| 1733 * | |
| 1734 * @return the line offsets | |
| 1735 * | |
| 1736 * @exception DWTException <ul> | |
| 1737 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1738 * </ul> | |
| 1739 */ | |
| 1740 public int[] getLineOffsets () { | |
| 1741 checkLayout(); | |
| 1742 computeRuns(null); | |
| 1743 int[] offsets = new int[lineOffset.length]; | |
| 1744 for (int i = 0; i < offsets.length; i++) { | |
| 1745 offsets[i] = untranslateOffset(lineOffset[i]); | |
| 1746 } | |
| 1747 return offsets; | |
| 1748 } | |
| 1749 | |
| 1750 /** | |
| 1751 * Returns the location for the specified character offset. The | |
| 1752 * <code>trailing</code> argument indicates whether the offset | |
| 1753 * corresponds to the leading or trailing edge of the cluster. | |
| 1754 * | |
| 1755 * @param offset the character offset | |
| 1756 * @param trailing the trailing flag | |
| 1757 * @return the location of the character offset | |
| 1758 * | |
| 1759 * @exception DWTException <ul> | |
| 1760 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1761 * </ul> | |
| 1762 * | |
| 1763 * @see #getOffset(Point, int[]) | |
| 1764 * @see #getOffset(int, int, int[]) | |
| 1765 */ | |
| 1766 public Point getLocation (int offset, bool trailing) { | |
| 1767 checkLayout(); | |
| 1768 computeRuns(null); | |
| 227 | 1769 int length = text.length; |
| 1770 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1771 length = segmentsText.length; | |
| 29 | 1772 offset = translateOffset(offset); |
| 1773 int line; | |
| 1774 for (line=0; line<runs.length; line++) { | |
| 1775 if (lineOffset[line + 1] > offset) break; | |
| 1776 } | |
| 1777 line = Math.min(line, runs.length - 1); | |
| 227 | 1778 if (offset is length) { |
| 213 | 1779 return new Point(getLineIndent(line) + lineWidth[line], lineY[line]); |
| 1780 } | |
| 1781 int low = -1; | |
| 1782 int high = allRuns.length; | |
| 1783 while (high - low > 1) { | |
| 1784 int index = ((high + low) / 2); | |
| 1785 StyleItem run = allRuns[index]; | |
| 1786 if (run.start > offset) { | |
| 1787 high = index; | |
| 1788 } else if (run.start + run.length <= offset) { | |
| 1789 low = index; | |
| 1790 } else { | |
| 1791 int width; | |
| 1792 if (run.style !is null && run.style.metrics !is null) { | |
| 1793 GlyphMetrics metrics = run.style.metrics; | |
| 1794 width = metrics.width * (offset - run.start + (trailing ? 1 : 0)); | |
| 1795 } else if (run.tab) { | |
| 227 | 1796 width = (trailing || (offset is length)) ? run.width : 0; |
| 213 | 1797 } else { |
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1798 // DWT: runOffset now in codepoints |
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1799 int runOffset = segmentsText[ run.start .. $ ].indexToCodepointIndex( offset - run.start ); |
| 213 | 1800 int cChars = run.length; |
| 1801 int gGlyphs = run.glyphCount; | |
| 1802 int piX; | |
| 1803 int* advances = run.justify !is null ? run.justify : run.advances; | |
| 1804 OS.ScriptCPtoX(runOffset, trailing, cChars, gGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piX); | |
| 1805 width = (orientation & DWT.RIGHT_TO_LEFT) !is 0 ? run.width - piX : piX; | |
| 29 | 1806 } |
| 213 | 1807 return new Point(run.x + width, lineY[line]); |
| 29 | 1808 } |
| 1809 } | |
| 213 | 1810 return new Point(0, 0); |
| 29 | 1811 } |
| 1812 | |
| 1813 /** | |
| 1814 * Returns the next offset for the specified offset and movement | |
| 1815 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 1816 * <code>DWT.MOVEMENT_CLUSTER</code>, <code>DWT.MOVEMENT_WORD</code>, | |
| 1817 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 1818 * | |
| 1819 * @param offset the start offset | |
| 1820 * @param movement the movement type | |
| 1821 * @return the next offset | |
| 1822 * | |
| 1823 * @exception IllegalArgumentException <ul> | |
| 1824 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 1825 * </ul> | |
| 1826 * @exception DWTException <ul> | |
| 1827 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1828 * </ul> | |
| 1829 * | |
| 1830 * @see #getPreviousOffset(int, int) | |
| 1831 */ | |
| 1832 public int getNextOffset (int offset, int movement) { | |
| 1833 checkLayout(); | |
| 1834 return _getOffset (offset, movement, true); | |
| 1835 } | |
| 1836 | |
| 1837 int _getOffset(int offset, int movement, bool forward) { | |
| 1838 computeRuns(null); | |
| 227 | 1839 int length = text.length; |
| 1840 if (!(0 <= offset && offset <= length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 1841 if (forward && offset is length) return length; | |
| 29 | 1842 if (!forward && offset is 0) return 0; |
| 1843 int step = forward ? 1 : -1; | |
| 1844 if ((movement & DWT.MOVEMENT_CHAR) !is 0) return offset + step; | |
| 227 | 1845 length = segmentsText.length; |
| 29 | 1846 offset = translateOffset(offset); |
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1847 SCRIPT_LOGATTR* logAttr; |
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1848 SCRIPT_PROPERTIES* properties; |
| 29 | 1849 int i = forward ? 0 : allRuns.length - 1; |
| 1850 offset = validadeOffset(offset, step); | |
| 1851 do { | |
| 1852 StyleItem run = allRuns[i]; | |
| 1853 if (run.start <= offset && offset < run.start + run.length) { | |
| 1854 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1855 if (run.tab) return untranslateOffset(run.start); | |
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1856 properties = device.scripts[run.analysis.eScript]; |
| 29 | 1857 bool isComplex = properties.fNeedsCaretInfo || properties.fNeedsWordBreaking; |
| 1858 if (isComplex) breakRun(run); | |
| 1859 while (run.start <= offset && offset < run.start + run.length) { | |
| 1860 if (isComplex) { | |
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1861 logAttr = run.psla + (offset - run.start); |
| 29 | 1862 } |
| 1863 switch (movement) { | |
| 1864 case DWT.MOVEMENT_CLUSTER: { | |
| 1865 if (properties.fNeedsCaretInfo) { | |
| 1866 if (!logAttr.fInvalid && logAttr.fCharStop) return untranslateOffset(offset); | |
| 1867 } else { | |
| 1868 return untranslateOffset(offset); | |
| 1869 } | |
| 1870 break; | |
| 1871 } | |
| 1872 case DWT.MOVEMENT_WORD_START: | |
| 1873 case DWT.MOVEMENT_WORD: { | |
| 1874 if (properties.fNeedsWordBreaking) { | |
| 1875 if (!logAttr.fInvalid && logAttr.fWordStop) return untranslateOffset(offset); | |
| 1876 } else { | |
| 1877 if (offset > 0) { | |
| 1878 bool letterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1879 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1880 if (letterOrDigit !is previousLetterOrDigit || !letterOrDigit) { | |
| 1881 if (!Compatibility.isWhitespace(segmentsText.charAt(offset))) { | |
| 1882 return untranslateOffset(offset); | |
| 1883 } | |
| 1884 } | |
| 1885 } | |
| 1886 } | |
| 1887 break; | |
| 1888 } | |
| 1889 case DWT.MOVEMENT_WORD_END: { | |
| 1890 if (offset > 0) { | |
| 1891 bool isLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset)); | |
| 1892 bool previousLetterOrDigit = Compatibility.isLetterOrDigit(segmentsText.charAt(offset - 1)); | |
| 1893 if (!isLetterOrDigit && previousLetterOrDigit) { | |
| 1894 return untranslateOffset(offset); | |
| 1895 } | |
| 1896 } | |
| 1897 break; | |
| 1898 } | |
| 81 | 1899 default: |
| 29 | 1900 } |
| 1901 offset = validadeOffset(offset, step); | |
| 1902 } | |
| 1903 } | |
| 1904 i += step; | |
| 227 | 1905 } while (0 <= i && i < allRuns.length - 1 && 0 <= offset && offset < length); |
| 30 | 1906 return forward ? text.length : 0; |
| 29 | 1907 } |
| 1908 | |
| 1909 /** | |
| 1910 * Returns the character offset for the specified point. | |
| 1911 * For a typical character, the trailing argument will be filled in to | |
| 1912 * indicate whether the point is closer to the leading edge (0) or | |
| 1913 * the trailing edge (1). When the point is over a cluster composed | |
| 1914 * of multiple characters, the trailing argument will be filled with the | |
| 1915 * position of the character in the cluster that is closest to | |
| 1916 * the point. | |
| 1917 * | |
| 1918 * @param point the point | |
| 1919 * @param trailing the trailing buffer | |
| 1920 * @return the character offset | |
| 1921 * | |
| 1922 * @exception IllegalArgumentException <ul> | |
| 1923 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1924 * <li>ERROR_NULL_ARGUMENT - if the point is null</li> | |
| 1925 * </ul> | |
| 1926 * @exception DWTException <ul> | |
| 1927 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1928 * </ul> | |
| 1929 * | |
| 1930 * @see #getLocation(int, bool) | |
| 1931 */ | |
| 1932 public int getOffset (Point point, int[] trailing) { | |
| 1933 checkLayout(); | |
| 1934 if (point is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); | |
| 1935 return getOffset (point.x, point.y, trailing) ; | |
| 1936 } | |
| 1937 | |
| 1938 /** | |
| 1939 * Returns the character offset for the specified point. | |
| 1940 * For a typical character, the trailing argument will be filled in to | |
| 1941 * indicate whether the point is closer to the leading edge (0) or | |
| 1942 * the trailing edge (1). When the point is over a cluster composed | |
| 1943 * of multiple characters, the trailing argument will be filled with the | |
| 1944 * position of the character in the cluster that is closest to | |
| 1945 * the point. | |
| 1946 * | |
| 1947 * @param x the x coordinate of the point | |
| 1948 * @param y the y coordinate of the point | |
| 1949 * @param trailing the trailing buffer | |
| 1950 * @return the character offset | |
| 1951 * | |
| 1952 * @exception IllegalArgumentException <ul> | |
| 1953 * <li>ERROR_INVALID_ARGUMENT - if the trailing length is less than <code>1</code></li> | |
| 1954 * </ul> | |
| 1955 * @exception DWTException <ul> | |
| 1956 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 1957 * </ul> | |
| 1958 * | |
| 1959 * @see #getLocation(int, bool) | |
| 1960 */ | |
| 1961 public int getOffset (int x, int y, int[] trailing) { | |
| 1962 checkLayout(); | |
| 1963 computeRuns(null); | |
| 1964 if (trailing !is null && trailing.length < 1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
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1965 |
| 29 | 1966 int line; |
| 1967 int lineCount = runs.length; | |
| 1968 for (line=0; line<lineCount; line++) { | |
| 1969 if (lineY[line + 1] > y) break; | |
| 1970 } | |
| 1971 line = Math.min(line, runs.length - 1); | |
| 1972 StyleItem[] lineRuns = runs[line]; | |
| 213 | 1973 int lineIndent = getLineIndent(line); |
| 1974 if (x >= lineIndent + lineWidth[line]) x = lineIndent + lineWidth[line] - 1; | |
| 1975 if (x < lineIndent) x = lineIndent; | |
| 1976 int low = -1; | |
| 1977 int high = lineRuns.length; | |
| 1978 while (high - low > 1) { | |
| 1979 int index = ((high + low) / 2); | |
| 1980 StyleItem run = lineRuns[index]; | |
| 1981 if (run.x > x) { | |
| 1982 high = index; | |
| 1983 } else if (run.x + run.width <= x) { | |
| 1984 low = index; | |
| 1985 } else { | |
| 1986 if (run.lineBreak && !run.softBreak) return untranslateOffset(run.start); | |
| 1987 int xRun = x - run.x; | |
| 29 | 1988 if (run.style !is null && run.style.metrics !is null) { |
| 1989 GlyphMetrics metrics = run.style.metrics; | |
| 1990 if (metrics.width > 0) { | |
| 1991 if (trailing !is null) { | |
| 1992 trailing[0] = (xRun % metrics.width < metrics.width / 2) ? 0 : 1; | |
| 1993 } | |
| 1994 return untranslateOffset(run.start + xRun / metrics.width); | |
| 1995 } | |
| 1996 } | |
| 1997 if (run.tab) { | |
| 213 | 1998 if (trailing !is null) trailing[0] = x < (run.x + run.width / 2) ? 0 : 1; |
| 29 | 1999 return untranslateOffset(run.start); |
| 2000 } | |
| 2001 int cChars = run.length; | |
| 2002 int cGlyphs = run.glyphCount; | |
| 30 | 2003 int piCP; |
| 2004 int piTrailing; | |
| 29 | 2005 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { |
| 2006 xRun = run.width - xRun; | |
| 2007 } | |
| 30 | 2008 int* advances = run.justify !is null ? run.justify : run.advances; |
| 2009 OS.ScriptXtoCP(xRun, cChars, cGlyphs, run.clusters, run.visAttrs, advances, &run.analysis, &piCP, &piTrailing); | |
| 2010 if (trailing !is null) trailing[0] = piTrailing; | |
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2011 |
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2012 // DWT: back from codepoints to utf8 index |
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2013 int offsetIndex = segmentsText[ run.start .. $ ].codepointIndexToIndex( piCP ); |
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2014 return untranslateOffset(run.start + offsetIndex); |
| 29 | 2015 } |
| 2016 } | |
| 2017 if (trailing !is null) trailing[0] = 0; | |
| 2018 return untranslateOffset(lineOffset[line + 1]); | |
| 2019 } | |
| 2020 | |
| 2021 /** | |
| 2022 * Returns the orientation of the receiver. | |
| 2023 * | |
| 2024 * @return the orientation style | |
| 2025 * | |
| 2026 * @exception DWTException <ul> | |
| 2027 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2028 * </ul> | |
| 2029 */ | |
| 2030 public int getOrientation () { | |
| 2031 checkLayout(); | |
| 2032 return orientation; | |
| 2033 } | |
| 2034 | |
| 2035 /** | |
| 2036 * Returns the previous offset for the specified offset and movement | |
| 2037 * type. The movement is one of <code>DWT.MOVEMENT_CHAR</code>, | |
| 2038 * <code>DWT.MOVEMENT_CLUSTER</code> or <code>DWT.MOVEMENT_WORD</code>, | |
| 2039 * <code>DWT.MOVEMENT_WORD_END</code> or <code>DWT.MOVEMENT_WORD_START</code>. | |
| 2040 * | |
| 2041 * @param offset the start offset | |
| 2042 * @param movement the movement type | |
| 2043 * @return the previous offset | |
| 2044 * | |
| 2045 * @exception IllegalArgumentException <ul> | |
| 2046 * <li>ERROR_INVALID_ARGUMENT - if the offset is out of range</li> | |
| 2047 * </ul> | |
| 2048 * @exception DWTException <ul> | |
| 2049 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2050 * </ul> | |
| 2051 * | |
| 2052 * @see #getNextOffset(int, int) | |
| 2053 */ | |
| 2054 public int getPreviousOffset (int offset, int movement) { | |
| 2055 checkLayout(); | |
| 2056 return _getOffset (offset, movement, false); | |
| 2057 } | |
| 2058 | |
| 2059 /** | |
| 2060 * Gets the ranges of text that are associated with a <code>TextStyle</code>. | |
| 2061 * | |
| 2062 * @return the ranges, an array of offsets representing the start and end of each | |
| 2063 * text style. | |
| 2064 * | |
| 2065 * @exception DWTException <ul> | |
| 2066 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2067 * </ul> | |
| 2068 * | |
| 2069 * @see #getStyles() | |
| 2070 * | |
| 2071 * @since 3.2 | |
| 2072 */ | |
| 2073 public int[] getRanges () { | |
| 2074 checkLayout(); | |
| 213 | 2075 int[] result = new int[stylesCount * 2]; |
| 29 | 2076 int count = 0; |
| 213 | 2077 for (int i=0; i<stylesCount - 1; i++) { |
| 29 | 2078 if (styles[i].style !is null) { |
| 2079 result[count++] = styles[i].start; | |
| 2080 result[count++] = styles[i + 1].start - 1; | |
| 2081 } | |
| 2082 } | |
| 2083 if (count !is result.length) { | |
| 2084 int[] newResult = new int[count]; | |
| 2085 System.arraycopy(result, 0, newResult, 0, count); | |
| 2086 result = newResult; | |
| 2087 } | |
| 2088 return result; | |
| 2089 } | |
| 2090 | |
| 2091 /** | |
| 2092 * Returns the text segments offsets of the receiver. | |
| 2093 * | |
| 2094 * @return the text segments offsets | |
| 2095 * | |
| 2096 * @exception DWTException <ul> | |
| 2097 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2098 * </ul> | |
| 2099 */ | |
| 2100 public int[] getSegments () { | |
| 2101 checkLayout(); | |
| 2102 return segments; | |
| 2103 } | |
| 2104 | |
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2105 String getSegmentsText() { |
| 29 | 2106 if (segments is null) return text; |
| 2107 int nSegments = segments.length; | |
| 2108 if (nSegments <= 1) return text; | |
| 213 | 2109 int length_ = text.length; |
| 2110 if (length_ is 0) return text; | |
| 29 | 2111 if (nSegments is 2) { |
| 213 | 2112 if (segments[0] is 0 && segments[1] is length_) return text; |
| 29 | 2113 } |
| 213 | 2114 char[] oldChars = new char[length_]; |
| 2115 text.getChars(0, length_, oldChars, 0); | |
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2116 // DWT: MARK is now 3 chars long |
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2117 String separator = orientation is DWT.RIGHT_TO_LEFT ? STR_RTL_MARK : STR_LTR_MARK; |
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2118 assert( separator.length is MARK_SIZE ); |
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2119 char[] newChars = new char[length_ + nSegments*MARK_SIZE]; |
| 29 | 2120 int charCount = 0, segmentCount = 0; |
| 213 | 2121 while (charCount < length_) { |
| 29 | 2122 if (segmentCount < nSegments && charCount is segments[segmentCount]) { |
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2123 int start = charCount + (segmentCount*MARK_SIZE); |
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2124 newChars[ start .. start + MARK_SIZE ] = separator; |
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2125 segmentCount++; |
| 29 | 2126 } else { |
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2127 newChars[charCount + (segmentCount*MARK_SIZE)] = oldChars[charCount]; |
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2128 charCount++; |
| 29 | 2129 } |
| 2130 } | |
| 2131 if (segmentCount < nSegments) { | |
| 2132 segments[segmentCount] = charCount; | |
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2133 int start = charCount + (segmentCount*MARK_SIZE); |
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2134 newChars[ start .. start + MARK_SIZE ] = separator; |
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2135 segmentCount++; |
| 29 | 2136 } |
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2137 return newChars[ 0 .. Math.min(charCount + (segmentCount*MARK_SIZE), newChars.length)].dup; |
| 29 | 2138 } |
| 2139 | |
| 2140 /** | |
| 2141 * Returns the line spacing of the receiver. | |
| 2142 * | |
| 2143 * @return the line spacing | |
| 2144 * | |
| 2145 * @exception DWTException <ul> | |
| 2146 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2147 * </ul> | |
| 2148 */ | |
| 2149 public int getSpacing () { | |
| 2150 checkLayout(); | |
| 2151 return lineSpacing; | |
| 2152 } | |
| 2153 | |
| 2154 /** | |
| 2155 * Gets the style of the receiver at the specified character offset. | |
| 2156 * | |
| 2157 * @param offset the text offset | |
| 2158 * @return the style or <code>null</code> if not set | |
| 2159 * | |
| 2160 * @exception IllegalArgumentException <ul> | |
| 2161 * <li>ERROR_INVALID_ARGUMENT - if the character offset is out of range</li> | |
| 2162 * </ul> | |
| 2163 * @exception DWTException <ul> | |
| 2164 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2165 * </ul> | |
| 2166 */ | |
| 2167 public TextStyle getStyle (int offset) { | |
| 2168 checkLayout(); | |
| 227 | 2169 int length = text.length; |
| 2170 if (!(0 <= offset && offset < length)) DWT.error(DWT.ERROR_INVALID_RANGE); | |
| 213 | 2171 for (int i=1; i<stylesCount; i++) { |
| 29 | 2172 if (styles[i].start > offset) { |
| 2173 return styles[i - 1].style; | |
| 2174 } | |
| 2175 } | |
| 2176 return null; | |
| 2177 } | |
| 2178 | |
| 2179 /** | |
| 2180 * Gets all styles of the receiver. | |
| 2181 * | |
| 2182 * @return the styles | |
| 2183 * | |
| 2184 * @exception DWTException <ul> | |
| 2185 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2186 * </ul> | |
| 2187 * | |
| 2188 * @see #getRanges() | |
| 2189 * | |
| 2190 * @since 3.2 | |
| 2191 */ | |
| 2192 public TextStyle[] getStyles () { | |
| 2193 checkLayout(); | |
| 213 | 2194 TextStyle[] result = new TextStyle[stylesCount]; |
| 29 | 2195 int count = 0; |
| 213 | 2196 for (int i=0; i<stylesCount; i++) { |
| 29 | 2197 if (styles[i].style !is null) { |
| 2198 result[count++] = styles[i].style; | |
| 2199 } | |
| 2200 } | |
| 2201 if (count !is result.length) { | |
| 2202 TextStyle[] newResult = new TextStyle[count]; | |
| 2203 System.arraycopy(result, 0, newResult, 0, count); | |
| 2204 result = newResult; | |
| 2205 } | |
| 2206 return result; | |
| 2207 } | |
| 2208 | |
| 2209 /** | |
| 2210 * Returns the tab list of the receiver. | |
| 2211 * | |
| 2212 * @return the tab list | |
| 2213 * | |
| 2214 * @exception DWTException <ul> | |
| 2215 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2216 * </ul> | |
| 2217 */ | |
| 2218 public int[] getTabs () { | |
| 2219 checkLayout(); | |
| 2220 return tabs; | |
| 2221 } | |
| 2222 | |
| 2223 /** | |
| 2224 * Gets the receiver's text, which will be an empty | |
| 2225 * string if it has never been set. | |
| 2226 * | |
| 2227 * @return the receiver's text | |
| 2228 * | |
| 2229 * @exception DWTException <ul> | |
| 2230 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2231 * </ul> | |
| 2232 */ | |
|
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2233 public String getText () { |
| 29 | 2234 checkLayout(); |
| 2235 return text; | |
| 2236 } | |
| 2237 | |
| 2238 /** | |
| 2239 * Returns the width of the receiver. | |
| 2240 * | |
| 2241 * @return the width | |
| 2242 * | |
| 2243 * @exception DWTException <ul> | |
| 2244 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2245 * </ul> | |
| 2246 */ | |
| 2247 public int getWidth () { | |
| 2248 checkLayout(); | |
| 2249 return wrapWidth; | |
| 2250 } | |
| 2251 | |
| 2252 /** | |
| 2253 * Returns <code>true</code> if the text layout has been disposed, | |
| 2254 * and <code>false</code> otherwise. | |
| 2255 * <p> | |
| 2256 * This method gets the dispose state for the text layout. | |
| 2257 * When a text layout has been disposed, it is an error to | |
| 2258 * invoke any other method using the text layout. | |
| 2259 * </p> | |
| 2260 * | |
| 2261 * @return <code>true</code> when the text layout is disposed and <code>false</code> otherwise | |
| 2262 */ | |
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2263 override public bool isDisposed () { |
| 29 | 2264 return device is null; |
| 2265 } | |
| 2266 | |
| 2267 /* | |
| 2268 * Itemize the receiver text | |
| 2269 */ | |
| 2270 StyleItem[] itemize () { | |
|
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2271 // DWT: itemize is the process of finding changes in direction |
| 29 | 2272 segmentsText = getSegmentsText(); |
| 227 | 2273 int length = segmentsText.length; |
| 30 | 2274 SCRIPT_CONTROL scriptControl; |
| 2275 SCRIPT_STATE scriptState; | |
| 227 | 2276 final int MAX_ITEM = length + 1; |
| 29 | 2277 |
| 2278 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 2279 scriptState.uBidiLevel = 1; | |
| 2280 scriptState.fArabicNumContext = true; | |
| 30 | 2281 SCRIPT_DIGITSUBSTITUTE psds; |
| 2282 OS.ScriptRecordDigitSubstitution(OS.LOCALE_USER_DEFAULT, &psds); | |
| 2283 OS.ScriptApplyDigitSubstitution(&psds, &scriptControl, &scriptState); | |
| 29 | 2284 } |
| 2285 | |
| 30 | 2286 auto hHeap = OS.GetProcessHeap(); |
| 2287 auto pItems = cast(SCRIPT_ITEM*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, MAX_ITEM * SCRIPT_ITEM.sizeof); | |
| 2288 if (pItems is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2289 int pcItems; | |
| 2290 wchar[] chars = StrToWCHARs( segmentsText ); | |
| 2291 OS.ScriptItemize(chars.ptr, chars.length, MAX_ITEM, &scriptControl, &scriptState, pItems, &pcItems); | |
| 29 | 2292 // if (hr is E_OUTOFMEMORY) //TODO handle it |
|
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2293 // DWT pcItems is not inclusive the trailing item |
| 29 | 2294 |
| 229 | 2295 // Translate the utf16 indices to utf8 indices |
| 2296 int utf8idx = 0; | |
|
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2297 int utf16idx = 0; |
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2298 int i = 0; |
| 229 | 2299 SCRIPT_ITEM* si = pItems; |
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2300 while( utf16idx < chars.length ){ |
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2301 |
| 229 | 2302 if( si.iCharPos is utf16idx ){ |
| 2303 si.iCharPos = utf8idx; | |
|
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2304 i++; |
| 229 | 2305 si++; |
| 2306 } | |
|
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2307 |
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2308 // goto next codepoint |
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2309 uint ate16; |
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2310 dchar[1] buf32; |
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2311 dchar[] res32 = Utf.toString32( chars[ utf16idx .. $ ], buf32, &ate16 ); |
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2312 uint ate32; |
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2313 char[4] buf8; |
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2314 char[] res8 = Utf.toString( res32, buf8, &ate32 ); |
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2315 utf16idx += ate16; |
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2316 utf8idx += res8.length; |
| 229 | 2317 } |
|
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2318 assert( si.iCharPos is chars.length ); |
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2319 si.iCharPos = utf8idx; |
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2320 assert( si.iCharPos is segmentsText.length ); |
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2321 assert( i is pcItems ); |
| 229 | 2322 |
| 30 | 2323 StyleItem[] runs = merge(pItems, pcItems); |
| 29 | 2324 OS.HeapFree(hHeap, 0, pItems); |
| 2325 return runs; | |
| 2326 } | |
| 2327 | |
| 2328 /* | |
| 2329 * Merge styles ranges and script items | |
| 2330 */ | |
| 30 | 2331 StyleItem[] merge (SCRIPT_ITEM* items, int itemCount) { |
| 213 | 2332 if (styles.length > stylesCount) { |
| 2333 StyleItem[] newStyles = new StyleItem[stylesCount]; | |
| 2334 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2335 styles = newStyles; | |
| 2336 } | |
| 30 | 2337 int count = 0, start = 0, end = segmentsText.length, itemIndex = 0, styleIndex = 0; |
| 213 | 2338 StyleItem[] runs = new StyleItem[itemCount + stylesCount]; |
|
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2339 SCRIPT_ITEM* scriptItem; |
| 29 | 2340 bool linkBefore = false; |
| 2341 while (start < end) { | |
| 2342 StyleItem item = new StyleItem(); | |
| 2343 item.start = start; | |
| 2344 item.style = styles[styleIndex].style; | |
| 2345 runs[count++] = item; | |
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2346 scriptItem = items + itemIndex; |
| 29 | 2347 item.analysis = scriptItem.a; |
| 2348 if (linkBefore) { | |
| 2349 item.analysis.fLinkBefore = true; | |
| 2350 linkBefore = false; | |
| 2351 } | |
| 30 | 2352 //scriptItem.a = new SCRIPT_ANALYSIS(); |
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2353 scriptItem = items + (itemIndex + 1); |
| 29 | 2354 int itemLimit = scriptItem.iCharPos; |
| 2355 int styleLimit = translateOffset(styles[styleIndex + 1].start); | |
| 2356 if (styleLimit <= itemLimit) { | |
| 2357 styleIndex++; | |
| 2358 start = styleLimit; | |
| 2359 if (start < itemLimit && 0 < start && start < end) { | |
| 2360 char pChar = segmentsText.charAt(start - 1); | |
| 2361 char tChar = segmentsText.charAt(start); | |
| 213 | 2362 if (Compatibility.isLetter(pChar) && Compatibility.isLetter(tChar)) { |
| 29 | 2363 item.analysis.fLinkAfter = true; |
| 2364 linkBefore = true; | |
| 2365 } | |
| 2366 } | |
| 2367 } | |
| 2368 if (itemLimit <= styleLimit) { | |
| 2369 itemIndex++; | |
| 2370 start = itemLimit; | |
| 2371 } | |
| 2372 item.length = start - item.start; | |
| 2373 } | |
| 2374 StyleItem item = new StyleItem(); | |
| 2375 item.start = end; | |
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2376 scriptItem = items + itemCount; |
| 29 | 2377 item.analysis = scriptItem.a; |
| 2378 runs[count++] = item; | |
| 2379 if (runs.length !is count) { | |
| 2380 StyleItem[] result = new StyleItem[count]; | |
| 2381 System.arraycopy(runs, 0, result, 0, count); | |
| 2382 return result; | |
| 2383 } | |
| 2384 return runs; | |
| 2385 } | |
| 2386 | |
| 2387 /* | |
| 2388 * Reorder the run | |
| 2389 */ | |
| 2390 StyleItem[] reorder (StyleItem[] runs, bool terminate) { | |
| 30 | 2391 int length_ = runs.length; |
| 2392 if (length_ <= 1) return runs; | |
| 2393 ubyte[] bidiLevels = new ubyte[length_]; | |
| 2394 for (int i=0; i<length_; i++) { | |
| 29 | 2395 bidiLevels[i] = cast(byte)(runs[i].analysis.s.uBidiLevel & 0x1F); |
| 2396 } | |
| 2397 /* | |
| 2398 * Feature in Windows. If the orientation is RTL Uniscribe will | |
| 2399 * resolve the level of line breaks to 1, this can cause the line | |
| 2400 * break to be reorder to the middle of the line. The fix is to set | |
| 2401 * the level to zero to prevent it to be reordered. | |
| 2402 */ | |
| 30 | 2403 StyleItem lastRun = runs[length_ - 1]; |
| 29 | 2404 if (lastRun.lineBreak && !lastRun.softBreak) { |
| 30 | 2405 bidiLevels[length_ - 1] = 0; |
| 29 | 2406 } |
| 30 | 2407 int[] log2vis = new int[length_]; |
| 2408 OS.ScriptLayout(length_, bidiLevels.ptr, null, log2vis.ptr); | |
| 2409 StyleItem[] result = new StyleItem[length_]; | |
| 2410 for (int i=0; i<length_; i++) { | |
| 29 | 2411 result[log2vis[i]] = runs[i]; |
| 2412 } | |
| 2413 if ((orientation & DWT.RIGHT_TO_LEFT) !is 0) { | |
| 30 | 2414 if (terminate) length_--; |
| 2415 for (int i = 0; i < length_ / 2 ; i++) { | |
| 29 | 2416 StyleItem tmp = result[i]; |
| 30 | 2417 result[i] = result[length_ - i - 1]; |
| 2418 result[length_ - i - 1] = tmp; | |
| 29 | 2419 } |
| 2420 } | |
| 2421 return result; | |
| 2422 } | |
| 2423 | |
| 2424 /** | |
| 2425 * Sets the text alignment for the receiver. The alignment controls | |
| 2426 * how a line of text is positioned horizontally. The argument should | |
| 2427 * be one of <code>DWT.LEFT</code>, <code>DWT.RIGHT</code> or <code>DWT.CENTER</code>. | |
| 2428 * <p> | |
| 2429 * The default alignment is <code>DWT.LEFT</code>. Note that the receiver's | |
| 2430 * width must be set in order to use <code>DWT.RIGHT</code> or <code>DWT.CENTER</code> | |
| 2431 * alignment. | |
| 2432 * </p> | |
| 2433 * | |
| 2434 * @param alignment the new alignment | |
| 2435 * | |
| 2436 * @exception DWTException <ul> | |
| 2437 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2438 * </ul> | |
| 2439 * | |
| 2440 * @see #setWidth(int) | |
| 2441 */ | |
| 2442 public void setAlignment (int alignment) { | |
| 2443 checkLayout(); | |
| 2444 int mask = DWT.LEFT | DWT.CENTER | DWT.RIGHT; | |
| 2445 alignment &= mask; | |
| 2446 if (alignment is 0) return; | |
| 2447 if ((alignment & DWT.LEFT) !is 0) alignment = DWT.LEFT; | |
| 2448 if ((alignment & DWT.RIGHT) !is 0) alignment = DWT.RIGHT; | |
| 2449 if (this.alignment is alignment) return; | |
| 2450 freeRuns(); | |
| 2451 this.alignment = alignment; | |
| 2452 } | |
| 2453 | |
| 2454 /** | |
| 2455 * Sets the ascent of the receiver. The ascent is distance in pixels | |
| 2456 * from the baseline to the top of the line and it is applied to all | |
| 2457 * lines. The default value is <code>-1</code> which means that the | |
| 2458 * ascent is calculated from the line fonts. | |
| 2459 * | |
| 2460 * @param ascent the new ascent | |
| 2461 * | |
| 2462 * @exception IllegalArgumentException <ul> | |
| 2463 * <li>ERROR_INVALID_ARGUMENT - if the ascent is less than <code>-1</code></li> | |
| 2464 * </ul> | |
| 2465 * @exception DWTException <ul> | |
| 2466 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2467 * </ul> | |
| 2468 * | |
| 2469 * @see #setDescent(int) | |
| 2470 * @see #getLineMetrics(int) | |
| 2471 */ | |
| 2472 public void setAscent(int ascent) { | |
| 2473 checkLayout(); | |
| 2474 if (ascent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2475 if (this.ascent is ascent) return; | |
| 2476 freeRuns(); | |
| 2477 this.ascent = ascent; | |
| 2478 } | |
| 2479 | |
| 2480 /** | |
| 2481 * Sets the descent of the receiver. The descent is distance in pixels | |
| 2482 * from the baseline to the bottom of the line and it is applied to all | |
| 2483 * lines. The default value is <code>-1</code> which means that the | |
| 2484 * descent is calculated from the line fonts. | |
| 2485 * | |
| 2486 * @param descent the new descent | |
| 2487 * | |
| 2488 * @exception IllegalArgumentException <ul> | |
| 2489 * <li>ERROR_INVALID_ARGUMENT - if the descent is less than <code>-1</code></li> | |
| 2490 * </ul> | |
| 2491 * @exception DWTException <ul> | |
| 2492 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2493 * </ul> | |
| 2494 * | |
| 2495 * @see #setAscent(int) | |
| 2496 * @see #getLineMetrics(int) | |
| 2497 */ | |
| 2498 public void setDescent(int descent) { | |
| 2499 checkLayout(); | |
| 2500 if (descent < -1) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2501 if (this.descent is descent) return; | |
| 2502 freeRuns(); | |
| 2503 this.descent = descent; | |
| 2504 } | |
| 2505 | |
| 2506 /** | |
| 2507 * Sets the default font which will be used by the receiver | |
| 2508 * to draw and measure text. If the | |
| 2509 * argument is null, then a default font appropriate | |
| 2510 * for the platform will be used instead. Note that a text | |
| 2511 * style can override the default font. | |
| 2512 * | |
| 2513 * @param font the new font for the receiver, or null to indicate a default font | |
| 2514 * | |
| 2515 * @exception IllegalArgumentException <ul> | |
| 2516 * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> | |
| 2517 * </ul> | |
| 2518 * @exception DWTException <ul> | |
| 2519 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2520 * </ul> | |
| 2521 */ | |
| 2522 public void setFont (Font font) { | |
| 2523 checkLayout(); | |
| 2524 if (font !is null && font.isDisposed()) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 213 | 2525 Font oldFont = this.font; |
| 2526 if (oldFont is font) return; | |
| 2527 this.font = font; | |
| 2528 if (oldFont !is null && oldFont.opEquals(font)) return; | |
| 29 | 2529 freeRuns(); |
| 2530 } | |
| 2531 | |
| 2532 /** | |
| 2533 * Sets the indent of the receiver. This indent it applied of the first line of | |
| 2534 * each paragraph. | |
| 2535 * | |
| 2536 * @param indent new indent | |
| 2537 * | |
| 2538 * @exception DWTException <ul> | |
| 2539 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2540 * </ul> | |
| 2541 * | |
| 2542 * @since 3.2 | |
| 2543 */ | |
| 2544 public void setIndent (int indent) { | |
| 2545 checkLayout(); | |
| 2546 if (indent < 0) return; | |
| 2547 if (this.indent is indent) return; | |
| 2548 freeRuns(); | |
| 2549 this.indent = indent; | |
| 2550 } | |
| 2551 | |
| 2552 /** | |
| 2553 * Sets the justification of the receiver. Note that the receiver's | |
| 2554 * width must be set in order to use justification. | |
| 2555 * | |
| 2556 * @param justify new justify | |
| 2557 * | |
| 2558 * @exception DWTException <ul> | |
| 2559 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2560 * </ul> | |
| 2561 * | |
| 2562 * @since 3.2 | |
| 2563 */ | |
| 2564 public void setJustify (bool justify) { | |
| 2565 checkLayout(); | |
| 2566 if (this.justify is justify) return; | |
| 2567 freeRuns(); | |
| 2568 this.justify = justify; | |
| 2569 } | |
| 2570 | |
| 2571 /** | |
| 2572 * Sets the orientation of the receiver, which must be one | |
| 2573 * of <code>DWT.LEFT_TO_RIGHT</code> or <code>DWT.RIGHT_TO_LEFT</code>. | |
| 2574 * | |
| 2575 * @param orientation new orientation style | |
| 2576 * | |
| 2577 * @exception DWTException <ul> | |
| 2578 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2579 * </ul> | |
| 2580 */ | |
| 2581 public void setOrientation (int orientation) { | |
| 2582 checkLayout(); | |
| 2583 int mask = DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT; | |
| 2584 orientation &= mask; | |
| 2585 if (orientation is 0) return; | |
| 2586 if ((orientation & DWT.LEFT_TO_RIGHT) !is 0) orientation = DWT.LEFT_TO_RIGHT; | |
| 2587 if (this.orientation is orientation) return; | |
| 2588 this.orientation = orientation; | |
| 2589 freeRuns(); | |
| 2590 } | |
| 2591 | |
| 2592 /** | |
| 2593 * Sets the offsets of the receiver's text segments. Text segments are used to | |
| 2594 * override the default behaviour of the bidirectional algorithm. | |
| 2595 * Bidirectional reordering can happen within a text segment but not | |
| 2596 * between two adjacent segments. | |
| 2597 * <p> | |
| 2598 * Each text segment is determined by two consecutive offsets in the | |
| 2599 * <code>segments</code> arrays. The first element of the array should | |
| 2600 * always be zero and the last one should always be equals to length of | |
| 2601 * the text. | |
| 2602 * </p> | |
| 2603 * | |
| 2604 * @param segments the text segments offset | |
| 2605 * | |
| 2606 * @exception DWTException <ul> | |
| 2607 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2608 * </ul> | |
| 2609 */ | |
| 2610 public void setSegments(int[] segments) { | |
| 2611 checkLayout(); | |
| 2612 if (this.segments is null && segments is null) return; | |
| 2613 if (this.segments !is null && segments !is null) { | |
| 2614 if (this.segments.length is segments.length) { | |
| 2615 int i; | |
| 2616 for (i = 0; i <segments.length; i++) { | |
| 2617 if (this.segments[i] !is segments[i]) break; | |
| 2618 } | |
| 2619 if (i is segments.length) return; | |
| 2620 } | |
| 2621 } | |
| 2622 freeRuns(); | |
| 2623 this.segments = segments; | |
| 2624 } | |
| 2625 | |
| 2626 /** | |
| 2627 * Sets the line spacing of the receiver. The line spacing | |
| 2628 * is the space left between lines. | |
| 2629 * | |
| 2630 * @param spacing the new line spacing | |
| 2631 * | |
| 2632 * @exception IllegalArgumentException <ul> | |
| 2633 * <li>ERROR_INVALID_ARGUMENT - if the spacing is negative</li> | |
| 2634 * </ul> | |
| 2635 * @exception DWTException <ul> | |
| 2636 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2637 * </ul> | |
| 2638 */ | |
| 2639 public void setSpacing (int spacing) { | |
| 2640 checkLayout(); | |
| 2641 if (spacing < 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2642 if (this.lineSpacing is spacing) return; | |
| 2643 freeRuns(); | |
| 2644 this.lineSpacing = spacing; | |
| 2645 } | |
| 2646 | |
| 2647 /** | |
| 2648 * Sets the style of the receiver for the specified range. Styles previously | |
| 2649 * set for that range will be overwritten. The start and end offsets are | |
| 2650 * inclusive and will be clamped if out of range. | |
| 2651 * | |
| 2652 * @param style the style | |
| 2653 * @param start the start offset | |
| 2654 * @param end the end offset | |
| 2655 * | |
| 2656 * @exception DWTException <ul> | |
| 2657 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2658 * </ul> | |
| 2659 */ | |
| 2660 public void setStyle (TextStyle style, int start, int end) { | |
| 2661 checkLayout(); | |
| 227 | 2662 int length = text.length; |
| 2663 if (length is 0) return; | |
| 29 | 2664 if (start > end) return; |
| 227 | 2665 start = Math.min(Math.max(0, start), length - 1); |
| 2666 end = Math.min(Math.max(0, end), length - 1); | |
| 29 | 2667 int low = -1; |
| 213 | 2668 int high = stylesCount; |
| 29 | 2669 while (high - low > 1) { |
| 2670 int index = (high + low) / 2; | |
| 2671 if (styles[index + 1].start > start) { | |
| 2672 high = index; | |
| 2673 } else { | |
| 2674 low = index; | |
| 2675 } | |
| 2676 } | |
| 213 | 2677 if (0 <= high && high < stylesCount) { |
| 29 | 2678 StyleItem item = styles[high]; |
| 2679 if (item.start is start && styles[high + 1].start - 1 is end) { | |
| 2680 if (style is null) { | |
| 2681 if (item.style is null) return; | |
| 2682 } else { | |
| 227 | 2683 if (style.opEquals(item.style)) return; |
| 29 | 2684 } |
| 2685 } | |
| 2686 } | |
| 2687 freeRuns(); | |
| 2688 int modifyStart = high; | |
| 2689 int modifyEnd = modifyStart; | |
| 213 | 2690 while (modifyEnd < stylesCount) { |
| 29 | 2691 if (styles[modifyEnd + 1].start > end) break; |
| 2692 modifyEnd++; | |
| 2693 } | |
| 2694 if (modifyStart is modifyEnd) { | |
| 2695 int styleStart = styles[modifyStart].start; | |
| 2696 int styleEnd = styles[modifyEnd + 1].start - 1; | |
| 2697 if (styleStart is start && styleEnd is end) { | |
| 2698 styles[modifyStart].style = style; | |
| 2699 return; | |
| 2700 } | |
| 2701 if (styleStart !is start && styleEnd !is end) { | |
| 213 | 2702 int newLength = stylesCount + 2; |
| 2703 if (newLength > styles.length) { | |
| 2704 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2705 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2706 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2707 styles = newStyles; | |
| 2708 } | |
| 2709 System.arraycopy(styles, modifyEnd + 1, styles, modifyEnd + 3, stylesCount - modifyEnd - 1); | |
| 29 | 2710 StyleItem item = new StyleItem(); |
| 2711 item.start = start; | |
| 2712 item.style = style; | |
| 213 | 2713 styles[modifyStart + 1] = item; |
| 29 | 2714 item = new StyleItem(); |
| 2715 item.start = end + 1; | |
| 2716 item.style = styles[modifyStart].style; | |
| 213 | 2717 styles[modifyStart + 2] = item; |
| 2718 stylesCount = newLength; | |
| 29 | 2719 return; |
| 2720 } | |
| 2721 } | |
| 2722 if (start is styles[modifyStart].start) modifyStart--; | |
| 2723 if (end is styles[modifyEnd + 1].start - 1) modifyEnd++; | |
| 213 | 2724 int newLength = stylesCount + 1 - (modifyEnd - modifyStart - 1); |
| 2725 if (newLength > styles.length) { | |
| 2726 int newSize = Math.min(newLength + 1024, Math.max(64, newLength * 2)); | |
| 2727 StyleItem[] newStyles = new StyleItem[newSize]; | |
| 2728 System.arraycopy(styles, 0, newStyles, 0, stylesCount); | |
| 2729 styles = newStyles; | |
| 2730 } | |
| 2731 System.arraycopy(styles, modifyEnd, styles, modifyStart + 2, stylesCount - modifyEnd); | |
| 29 | 2732 StyleItem item = new StyleItem(); |
| 2733 item.start = start; | |
| 2734 item.style = style; | |
| 213 | 2735 styles[modifyStart + 1] = item; |
| 2736 styles[modifyStart + 2].start = end + 1; | |
| 2737 stylesCount = newLength; | |
| 29 | 2738 } |
| 2739 | |
| 2740 /** | |
| 2741 * Sets the receiver's tab list. Each value in the tab list specifies | |
| 2742 * the space in pixels from the origin of the text layout to the respective | |
| 2743 * tab stop. The last tab stop width is repeated continuously. | |
| 2744 * | |
| 2745 * @param tabs the new tab list | |
| 2746 * | |
| 2747 * @exception DWTException <ul> | |
| 2748 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2749 * </ul> | |
| 2750 */ | |
| 2751 public void setTabs (int[] tabs) { | |
| 2752 checkLayout(); | |
| 2753 if (this.tabs is null && tabs is null) return; | |
| 2754 if (this.tabs !is null && tabs !is null) { | |
| 2755 if (this.tabs.length is tabs.length) { | |
| 2756 int i; | |
| 2757 for (i = 0; i <tabs.length; i++) { | |
| 2758 if (this.tabs[i] !is tabs[i]) break; | |
| 2759 } | |
| 2760 if (i is tabs.length) return; | |
| 2761 } | |
| 2762 } | |
| 2763 freeRuns(); | |
| 2764 this.tabs = tabs; | |
| 2765 } | |
| 2766 | |
| 2767 /** | |
| 2768 * Sets the receiver's text. | |
| 2769 * | |
| 2770 * @param text the new text | |
| 2771 * | |
| 2772 * @exception IllegalArgumentException <ul> | |
| 2773 * <li>ERROR_NULL_ARGUMENT - if the text is null</li> | |
| 2774 * </ul> | |
| 2775 * @exception DWTException <ul> | |
| 2776 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2777 * </ul> | |
| 2778 */ | |
|
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parents:
157
diff
changeset
|
2779 public void setText (String text) { |
| 29 | 2780 checkLayout(); |
| 229 | 2781 |
|
157
f8001bf383d2
TextLayout allow null for setText
Frank Benoit <benoit@tionex.de>
parents:
81
diff
changeset
|
2782 //PORTING_CHANGE: allow null argument |
|
f8001bf383d2
TextLayout allow null for setText
Frank Benoit <benoit@tionex.de>
parents:
81
diff
changeset
|
2783 //if (text is null) DWT.error(DWT.ERROR_NULL_ARGUMENT); |
| 227 | 2784 if (text.equals(this.text)) return; |
| 29 | 2785 freeRuns(); |
| 2786 this.text = text; | |
| 2787 styles = new StyleItem[2]; | |
| 2788 styles[0] = new StyleItem(); | |
| 2789 styles[1] = new StyleItem(); | |
| 30 | 2790 styles[1].start = text.length; |
| 213 | 2791 stylesCount = 2; |
| 29 | 2792 } |
| 2793 | |
| 2794 /** | |
| 2795 * Sets the line width of the receiver, which determines how | |
| 2796 * text should be wrapped and aligned. The default value is | |
| 2797 * <code>-1</code> which means wrapping is disabled. | |
| 2798 * | |
| 2799 * @param width the new width | |
| 2800 * | |
| 2801 * @exception IllegalArgumentException <ul> | |
| 2802 * <li>ERROR_INVALID_ARGUMENT - if the width is <code>0</code> or less than <code>-1</code></li> | |
| 2803 * </ul> | |
| 2804 * @exception DWTException <ul> | |
| 2805 * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> | |
| 2806 * </ul> | |
| 2807 * | |
| 2808 * @see #setAlignment(int) | |
| 2809 */ | |
| 2810 public void setWidth (int width) { | |
| 2811 checkLayout(); | |
| 2812 if (width < -1 || width is 0) DWT.error(DWT.ERROR_INVALID_ARGUMENT); | |
| 2813 if (this.wrapWidth is width) return; | |
| 2814 freeRuns(); | |
| 2815 this.wrapWidth = width; | |
| 2816 } | |
| 2817 | |
| 249 | 2818 bool shape (HDC hdc, StyleItem run, wchar[] wchars, int[] glyphCount, int maxGlyphs, SCRIPT_PROPERTIES* sp) { |
| 2819 //wchar[] wchars = StrToWCHARs( chars ); | |
| 246 | 2820 bool useCMAPcheck = !sp.fComplex && !run.analysis.fNoGlyphIndex; |
| 2821 if (useCMAPcheck) { | |
| 249 | 2822 ushort[] glyphs = new ushort[wchars.length]; |
| 2823 scope(exit) delete glyphs; | |
| 2824 if (OS.ScriptGetCMap(hdc, run.psc, wchars.ptr, wchars.length, 0, glyphs.ptr) !is OS.S_OK) { | |
| 2825 if (run.psc !is null) { | |
| 246 | 2826 OS.ScriptFreeCache(run.psc); |
| 2827 glyphCount[0] = 0; | |
| 249 | 2828 *cast(int*)run.psc = 1; |
| 246 | 2829 } |
| 2830 return false; | |
| 2831 } | |
| 2832 } | |
| 30 | 2833 auto hr = OS.ScriptShape(hdc, run.psc, wchars.ptr, wchars.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, glyphCount.ptr); |
| 29 | 2834 run.glyphCount = glyphCount[0]; |
| 246 | 2835 if (useCMAPcheck) return true; |
| 2836 | |
| 29 | 2837 if (hr !is OS.USP_E_SCRIPT_NOT_IN_FONT) { |
| 246 | 2838 if (run.analysis.fNoGlyphIndex) return true; |
| 30 | 2839 SCRIPT_FONTPROPERTIES fp; |
| 29 | 2840 fp.cBytes = SCRIPT_FONTPROPERTIES.sizeof; |
| 30 | 2841 OS.ScriptGetFontProperties(hdc, run.psc, &fp); |
| 2842 ushort[] glyphs = run.glyphs[ 0 .. glyphCount[0] ]; | |
| 29 | 2843 int i; |
| 2844 for (i = 0; i < glyphs.length; i++) { | |
| 2845 if (glyphs[i] is fp.wgDefault) break; | |
| 2846 } | |
| 2847 if (i is glyphs.length) return true; | |
| 2848 } | |
| 30 | 2849 if (run.psc !is null) { |
| 29 | 2850 OS.ScriptFreeCache(run.psc); |
| 2851 glyphCount[0] = 0; | |
| 30 | 2852 *cast(int*)run.psc = 0; |
| 29 | 2853 } |
| 2854 run.glyphCount = 0; | |
| 2855 return false; | |
| 2856 } | |
| 2857 | |
| 213 | 2858 struct CallbackDataEnumFontFamExProc { |
| 2859 int delegate ( ENUMLOGFONTEX* lpelfe, NEWTEXTMETRICEX* lpntme, int FontType, int lParam) EnumFontFamExProc; | |
| 2860 int lParam; | |
| 2861 } | |
| 2862 extern(Windows) private static int EnumFontFamExProcFunc( ENUMLOGFONTEX* lpelfe, NEWTEXTMETRICEX* lpntme, int FontType, int lParam) { | |
| 2863 auto cb = cast(CallbackDataEnumFontFamExProc*)cast(void*)lParam; | |
| 2864 return cb.EnumFontFamExProc( lpelfe, lpntme, FontType, cb.lParam ); | |
| 2865 } | |
| 2866 | |
| 29 | 2867 /* |
| 2868 * Generate glyphs for one Run. | |
| 2869 */ | |
| 2870 void shape (HDC hdc, StyleItem run) { | |
|
278
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Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
2871 int[1] buffer; |
|
3f53ebb05b5b
Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
2872 char[] chars = new char[run.length]; |
| 29 | 2873 segmentsText.getChars(run.start, run.start + run.length, chars, 0); |
| 30 | 2874 wchar[] wchars = StrToWCHARs( chars ); |
| 249 | 2875 int maxGlyphs = (wchars.length * 3 / 2) + 16; |
| 30 | 2876 auto hHeap = OS.GetProcessHeap(); |
| 2877 run.glyphs = cast(ushort*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2878 if (run.glyphs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2879 run.clusters = cast(WORD*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * 2); | |
| 2880 if (run.clusters is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2881 run.visAttrs = cast(SCRIPT_VISATTR*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, maxGlyphs * SCRIPT_VISATTR_SIZEOF); | |
| 2882 if (run.visAttrs is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2883 run.psc = cast(SCRIPT_CACHE*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, (void*).sizeof); |
| 30 | 2884 if (run.psc is null) DWT.error(DWT.ERROR_NO_HANDLES); |
| 249 | 2885 short script = run.analysis.eScript; |
| 2886 auto sp = device.scripts[script]; | |
| 2887 bool shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, sp); | |
| 213 | 2888 if (!shapeSucceed) { |
| 249 | 2889 auto hFont = OS.GetCurrentObject(hdc, OS.OBJ_FONT); |
| 2890 auto ssa = cast(SCRIPT_STRING_ANALYSIS*) OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, SCRIPT_STRING_ANALYSIS.sizeof); | |
| 2891 auto metaFileDc = OS.CreateEnhMetaFile(hdc, null, null, null); | |
| 2892 auto oldMetaFont = OS.SelectObject(metaFileDc, hFont); | |
| 246 | 2893 int flags = OS.SSA_METAFILE | OS.SSA_FALLBACK | OS.SSA_GLYPHS | OS.SSA_LINK; |
| 249 | 2894 if (OS.ScriptStringAnalyse(metaFileDc, wchars.ptr, wchars.length, 0, -1, flags, 0, null, null, null, null, null, ssa) is OS.S_OK) { |
| 246 | 2895 OS.ScriptStringOut(ssa, 0, 0, 0, null, 0, 0, false); |
| 2896 OS.ScriptStringFree(ssa); | |
| 2897 } | |
| 2898 OS.HeapFree(hHeap, 0, ssa); | |
| 2899 OS.SelectObject(metaFileDc, oldMetaFont); | |
| 249 | 2900 auto metaFile = OS.CloseEnhMetaFile(metaFileDc); |
| 2901 EMREXTCREATEFONTINDIRECTW emr; | |
| 2902 static extern(Windows) int metaFileEnumProc (HDC hDC, HANDLETABLE* table, ENHMETARECORD* record, int nObj, LPARAM lpData) { | |
| 2903 EMREXTCREATEFONTINDIRECTW* emr_; | |
| 2904 OS.MoveMemory(&emr_.emr, record, EMR.sizeof); | |
| 2905 switch (emr_.emr.iType) { | |
| 2906 case OS.EMR_EXTCREATEFONTINDIRECTW: | |
| 2907 OS.MoveMemory(emr_, record, EMREXTCREATEFONTINDIRECTW.sizeof); | |
| 2908 break; | |
| 2909 case OS.EMR_EXTTEXTOUTW: | |
| 2910 return 0; | |
| 246 | 2911 } |
| 249 | 2912 return 1; |
| 2913 } | |
| 2914 OS.EnumEnhMetaFile(null, metaFile, &metaFileEnumProc, &emr, null); | |
| 246 | 2915 OS.DeleteEnhMetaFile(metaFile); |
| 2916 | |
| 249 | 2917 auto newFont = OS.CreateFontIndirectW(&emr.elfw.elfLogFont); |
| 246 | 2918 OS.SelectObject(hdc, newFont); |
| 249 | 2919 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, sp)) is true ) { |
| 246 | 2920 run.fallbackFont = newFont; |
| 2921 } | |
| 2922 if (!shapeSucceed) { | |
| 2923 if (!sp.fComplex) { | |
| 2924 run.analysis.fNoGlyphIndex = true; | |
| 249 | 2925 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, sp)) is true ) { |
| 246 | 2926 run.fallbackFont = newFont; |
| 29 | 2927 } else { |
| 246 | 2928 run.analysis.fNoGlyphIndex = false; |
| 29 | 2929 } |
| 2930 } | |
| 2931 } | |
| 246 | 2932 if (!shapeSucceed) { |
| 2933 if (mLangFontLink2 !is null) { | |
| 2934 HANDLE hNewFont; | |
| 2935 int dwCodePages, cchCodePages; | |
| 2936 /* GetStrCodePages() */ | |
| 2937 OS.VtblCall(4, mLangFontLink2, cast(int)wchars.ptr, wchars.length, 0, cast(int)&dwCodePages, cast(int)&cchCodePages); | |
| 2938 /* MapFont() */ | |
| 2939 if (OS.VtblCall(10, mLangFontLink2, cast(int)hdc, dwCodePages, cast(int)wchars[0], cast(int)&hNewFont) is OS.S_OK) { | |
| 2940 LOGFONT logFont; | |
| 2941 OS.GetObject( hNewFont, LOGFONT.sizeof, &logFont ); | |
| 2942 /* ReleaseFont() */ | |
| 2943 OS.VtblCall(8, mLangFontLink2, cast(int)hNewFont); | |
| 249 | 2944 auto mLangFont = OS.CreateFontIndirect(&logFont); |
| 246 | 2945 auto oldFont = OS.SelectObject(hdc, mLangFont); |
| 249 | 2946 if ((shapeSucceed = shape(hdc, run, wchars, buffer, maxGlyphs, sp)) is true ) { |
| 246 | 2947 run.fallbackFont = mLangFont; |
| 2948 } else { | |
| 2949 OS.SelectObject(hdc, oldFont); | |
| 2950 OS.DeleteObject(mLangFont); | |
| 2951 } | |
| 2952 } | |
| 213 | 2953 } |
| 2954 } | |
| 246 | 2955 if (!shapeSucceed) OS.SelectObject(hdc, hFont); |
| 2956 if (newFont !is run.fallbackFont) OS.DeleteObject(newFont); | |
| 213 | 2957 } |
| 2958 | |
| 2959 if (!shapeSucceed) { | |
| 2960 /* | |
| 2961 * Shape Failed. | |
| 2962 * Give up and shape the run with the default font. | |
| 2963 * Missing glyphs typically will be represent as black boxes in the text. | |
| 2964 */ | |
| 2965 auto wchars_ = StrToWCHARs(chars); | |
| 2966 OS.ScriptShape(hdc, run.psc, wchars_.ptr, wchars_.length, maxGlyphs, &run.analysis, run.glyphs, run.clusters, run.visAttrs, buffer.ptr); | |
| 2967 run.glyphCount = buffer[0]; | |
| 2968 } | |
| 2969 int[3] abc; | |
| 30 | 2970 run.advances = cast(int*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * 4); |
| 2971 if (run.advances is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 2972 run.goffsets = cast(GOFFSET*)OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, run.glyphCount * GOFFSET_SIZEOF); | |
| 2973 if (run.goffsets is null) DWT.error(DWT.ERROR_NO_HANDLES); | |
| 213 | 2974 OS.ScriptPlace(hdc, run.psc, run.glyphs, run.glyphCount, run.visAttrs, &run.analysis, run.advances, run.goffsets, cast(ABC*)abc.ptr); |
| 2975 run.width = abc[0] + abc[1] + abc[2]; | |
| 2976 TextStyle style = run.style; | |
| 2977 if (style !is null) { | |
| 2978 OUTLINETEXTMETRIC* lotm = null; | |
| 2979 if (style.underline || style.strikeout) { | |
| 2980 lotm = new OUTLINETEXTMETRIC(); | |
| 2981 if (OS.GetOutlineTextMetrics(hdc, OUTLINETEXTMETRIC.sizeof, lotm) is 0) { | |
| 2982 lotm = null; | |
| 2983 } | |
| 2984 } | |
| 2985 if (style.metrics !is null) { | |
| 2986 GlyphMetrics metrics = style.metrics; | |
| 2987 /* | |
| 2988 * Bug in Windows, on a Japanese machine, Uniscribe returns glyphcount | |
| 2989 * equals zero for FFFC (possibly other unicode code points), the fix | |
| 2990 * is to make sure the glyph is at least one pixel wide. | |
| 2991 */ | |
| 2992 run.width = metrics.width * Math.max (1, run.glyphCount); | |
| 2993 run.ascent = metrics.ascent; | |
| 2994 run.descent = metrics.descent; | |
| 2995 run.leading = 0; | |
| 2996 } else { | |
| 2997 TEXTMETRIC lptm; | |
| 2998 if (lotm !is null) { | |
| 2999 lptm = lotm.otmTextMetrics; | |
| 3000 } else { | |
| 3001 lptm = TEXTMETRIC.init; | |
| 3002 OS.GetTextMetrics(hdc, &lptm); | |
| 3003 } | |
| 3004 run.ascent = lptm.tmAscent; | |
| 3005 run.descent = lptm.tmDescent; | |
| 3006 run.leading = lptm.tmInternalLeading; | |
| 3007 } | |
| 3008 if (lotm !is null) { | |
| 3009 run.underlinePos = lotm.otmsUnderscorePosition; | |
| 3010 run.underlineThickness = Math.max(1, lotm.otmsUnderscoreSize); | |
| 3011 run.strikeoutPos = lotm.otmsStrikeoutPosition; | |
| 3012 run.strikeoutThickness = Math.max(1, lotm.otmsStrikeoutSize); | |
| 3013 } else { | |
| 3014 run.underlinePos = 1; | |
| 3015 run.underlineThickness = 1; | |
| 3016 run.strikeoutPos = run.ascent / 2; | |
| 3017 run.strikeoutThickness = 1; | |
| 3018 } | |
| 3019 run.ascent += style.rise; | |
| 3020 run.descent -= style.rise; | |
| 29 | 3021 } else { |
| 3022 TEXTMETRIC lptm; | |
| 3023 OS.GetTextMetrics(hdc, &lptm); | |
| 3024 run.ascent = lptm.tmAscent; | |
| 3025 run.descent = lptm.tmDescent; | |
| 3026 run.leading = lptm.tmInternalLeading; | |
| 3027 } | |
| 3028 } | |
| 3029 | |
| 3030 int validadeOffset(int offset, int step) { | |
|
278
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Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
3031 offset += segmentsText.getRelativeCodePointOffset( offset, step ); |
| 29 | 3032 if (segments !is null && segments.length > 2) { |
| 3033 for (int i = 0; i < segments.length; i++) { | |
| 3034 if (translateOffset(segments[i]) - 1 is offset) { | |
| 3035 offset += step; | |
| 3036 break; | |
| 3037 } | |
| 3038 } | |
| 3039 } | |
| 3040 return offset; | |
| 3041 } | |
| 3042 | |
| 3043 /** | |
| 3044 * Returns a string containing a concise, human-readable | |
| 3045 * description of the receiver. | |
| 3046 * | |
| 3047 * @return a string representation of the receiver | |
| 3048 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
157
diff
changeset
|
3049 override public String toString () { |
| 29 | 3050 if (isDisposed()) return "TextLayout {*DISPOSED*}"; |
| 3051 return "TextLayout {}"; | |
| 3052 } | |
| 3053 | |
| 3054 int translateOffset(int offset) { | |
| 3055 if (segments is null) return offset; | |
| 3056 int nSegments = segments.length; | |
| 3057 if (nSegments <= 1) return offset; | |
| 227 | 3058 int length = text.length; |
| 3059 if (length is 0) return offset; | |
| 29 | 3060 if (nSegments is 2) { |
| 227 | 3061 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3062 } |
| 3063 for (int i = 0; i < nSegments && offset - i >= segments[i]; i++) { | |
|
278
3f53ebb05b5b
Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
3064 offset+=MARK_SIZE; |
| 29 | 3065 } |
| 3066 return offset; | |
| 3067 } | |
| 3068 | |
| 3069 int untranslateOffset(int offset) { | |
| 3070 if (segments is null) return offset; | |
| 3071 int nSegments = segments.length; | |
| 3072 if (nSegments <= 1) return offset; | |
| 227 | 3073 int length = text.length; |
| 3074 if (length is 0) return offset; | |
| 29 | 3075 if (nSegments is 2) { |
| 227 | 3076 if (segments[0] is 0 && segments[1] is length) return offset; |
| 29 | 3077 } |
| 3078 for (int i = 0; i < nSegments && offset > segments[i]; i++) { | |
|
278
3f53ebb05b5b
Fix: make MARK copy work correctly mit multiple chars.
Frank Benoit <benoit@tionex.de>
parents:
249
diff
changeset
|
3079 offset-=MARK_SIZE; |
| 29 | 3080 } |
| 3081 return offset; | |
| 3082 } | |
| 3083 } |