2 * RichEdit style management functions
4 * Copyright 2004 by Krzysztof Foltman
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
24 WINE_DECLARE_DEBUG_CHANNEL(richedit_style);
26 static int all_refs = 0;
28 CHARFORMAT2W *ME_ToCF2W(CHARFORMAT2W *to, CHARFORMAT2W *from)
30 if (from->cbSize == sizeof(CHARFORMATA))
32 CHARFORMATA *f = (CHARFORMATA *)from;
33 CopyMemory(to, f, sizeof(*f)-sizeof(f->szFaceName));
34 to->cbSize = sizeof(CHARFORMAT2W);
35 if (f->dwMask & CFM_FACE) {
36 MultiByteToWideChar(0, 0, f->szFaceName, -1, to->szFaceName, sizeof(to->szFaceName)/sizeof(WCHAR));
40 if (from->cbSize == sizeof(CHARFORMATW))
42 CHARFORMATW *f = (CHARFORMATW *)from;
43 CopyMemory(to, f, sizeof(*f));
44 /* theoretically, we don't need to zero the remaining memory */
45 ZeroMemory(((CHARFORMATW *)to)+1, sizeof(CHARFORMAT2W)-sizeof(CHARFORMATW));
46 to->cbSize = sizeof(CHARFORMAT2W);
49 if (from->cbSize == sizeof(CHARFORMAT2A))
51 CHARFORMATA *f = (CHARFORMATA *)from;
52 /* copy the A structure without face name */
53 CopyMemory(to, f, sizeof(CHARFORMATA)-sizeof(f->szFaceName));
54 /* convert face name */
55 if (f->dwMask & CFM_FACE)
56 MultiByteToWideChar(0, 0, f->szFaceName, -1, to->szFaceName, sizeof(to->szFaceName)/sizeof(WCHAR));
57 /* copy the rest of the 2A structure to 2W */
58 CopyMemory(1+((CHARFORMATW *)to), f+1, sizeof(CHARFORMAT2A)-sizeof(CHARFORMATA));
59 to->cbSize = sizeof(CHARFORMAT2W);
63 assert(from->cbSize >= sizeof(CHARFORMAT2W));
67 void ME_CopyToCF2W(CHARFORMAT2W *to, CHARFORMAT2W *from)
69 if (ME_ToCF2W(to, from) == from)
70 CopyMemory(to, from, sizeof(*from));
73 CHARFORMAT2W *ME_ToCFAny(CHARFORMAT2W *to, CHARFORMAT2W *from)
75 assert(from->cbSize == sizeof(CHARFORMAT2W));
76 if (to->cbSize == sizeof(CHARFORMATA))
78 CHARFORMATA *t = (CHARFORMATA *)to;
79 CopyMemory(t, from, sizeof(*t)-sizeof(t->szFaceName));
80 WideCharToMultiByte(0, 0, from->szFaceName, -1, t->szFaceName, sizeof(t->szFaceName), 0, 0);
81 t->cbSize = sizeof(*t); /* it was overwritten by CopyMemory */
84 if (to->cbSize == sizeof(CHARFORMATW))
86 CHARFORMATW *t = (CHARFORMATW *)to;
87 CopyMemory(t, from, sizeof(*t));
88 t->cbSize = sizeof(*t); /* it was overwritten by CopyMemory */
91 if (to->cbSize == sizeof(CHARFORMAT2A))
93 CHARFORMAT2A *t = (CHARFORMAT2A *)to;
94 /* copy the A structure without face name */
95 CopyMemory(t, from, sizeof(CHARFORMATA)-sizeof(t->szFaceName));
96 /* convert face name */
97 WideCharToMultiByte(0, 0, from->szFaceName, -1, t->szFaceName, sizeof(t->szFaceName), 0, 0);
98 /* copy the rest of the 2A structure to 2W */
99 CopyMemory(&t->wWeight, &from->wWeight, sizeof(CHARFORMAT2A)-sizeof(CHARFORMATA));
100 t->cbSize = sizeof(*t); /* it was overwritten by CopyMemory */
103 assert(to->cbSize >= sizeof(CHARFORMAT2W));
107 void ME_CopyToCFAny(CHARFORMAT2W *to, CHARFORMAT2W *from)
109 if (ME_ToCFAny(to, from) == from)
110 CopyMemory(to, from, to->cbSize);
113 ME_Style *ME_MakeStyle(CHARFORMAT2W *style) {
114 CHARFORMAT2W styledata;
115 ME_Style *s = ALLOC_OBJ(ME_Style);
117 style = ME_ToCF2W(&styledata, style);
118 memset(s, 0, sizeof(ME_Style));
119 if (style->cbSize <= sizeof(CHARFORMAT2W))
120 CopyMemory(&s->fmt, style, style->cbSize);
122 CopyMemory(&s->fmt, style, sizeof(CHARFORMAT2W));
123 s->fmt.cbSize = sizeof(CHARFORMAT2W);
133 #define COPY_STYLE_ITEM(mask, member) \
134 if (style->dwMask & mask) { \
135 s->fmt.dwMask |= mask;\
136 s->fmt.member = style->member;\
139 #define COPY_STYLE_ITEM_MEMCPY(mask, member) \
140 if (style->dwMask & mask) { \
141 s->fmt.dwMask |= mask;\
142 CopyMemory(s->fmt.member, style->member, sizeof(style->member));\
145 void ME_InitCharFormat2W(CHARFORMAT2W *pFmt)
147 ZeroMemory(pFmt, sizeof(CHARFORMAT2W));
148 pFmt->cbSize = sizeof(CHARFORMAT2W);
151 ME_Style *ME_ApplyStyle(ME_Style *sSrc, CHARFORMAT2W *style)
153 CHARFORMAT2W styledata;
154 ME_Style *s = ME_MakeStyle(&sSrc->fmt);
155 style = ME_ToCF2W(&styledata, style);
156 COPY_STYLE_ITEM(CFM_ANIMATION, bAnimation);
157 COPY_STYLE_ITEM(CFM_BACKCOLOR, crBackColor);
158 COPY_STYLE_ITEM(CFM_CHARSET, bCharSet);
159 COPY_STYLE_ITEM(CFM_COLOR, crTextColor);
160 COPY_STYLE_ITEM_MEMCPY(CFM_FACE, szFaceName);
161 COPY_STYLE_ITEM(CFM_KERNING, wKerning);
162 COPY_STYLE_ITEM(CFM_LCID, lcid);
163 COPY_STYLE_ITEM(CFM_OFFSET, yOffset);
164 COPY_STYLE_ITEM(CFM_REVAUTHOR, bRevAuthor);
165 COPY_STYLE_ITEM(CFM_SIZE, yHeight);
166 COPY_STYLE_ITEM(CFM_SPACING, sSpacing);
167 COPY_STYLE_ITEM(CFM_STYLE, sStyle);
168 COPY_STYLE_ITEM(CFM_UNDERLINETYPE, bUnderlineType);
169 COPY_STYLE_ITEM(CFM_WEIGHT, wWeight);
171 s->fmt.dwEffects &= ~(style->dwMask);
172 s->fmt.dwEffects |= style->dwEffects & style->dwMask;
173 s->fmt.dwMask |= style->dwMask;
174 if (style->dwMask & CFM_COLOR)
176 if (style->dwEffects & CFE_AUTOCOLOR)
177 s->fmt.dwEffects |= CFE_AUTOCOLOR;
179 s->fmt.dwEffects &= ~CFE_AUTOCOLOR;
184 void ME_CopyCharFormat(CHARFORMAT2W *pDest, CHARFORMAT2W *pSrc)
186 /* using this with non-2W structs is forbidden */
187 assert(pSrc->cbSize == sizeof(CHARFORMAT2W));
188 assert(pDest->cbSize == sizeof(CHARFORMAT2W));
189 CopyMemory(pDest, pSrc, sizeof(CHARFORMAT2W));
192 static void ME_DumpStyleEffect(char **p, const char *name, CHARFORMAT2W *fmt, int mask)
194 *p += sprintf(*p, "%-22s%s\n", name, (fmt->dwMask & mask) ? ((fmt->dwEffects & mask) ? "YES" : "no") : "N/A");
197 void ME_DumpStyle(ME_Style *s)
200 ME_DumpStyleToBuf(&s->fmt, buf);
201 TRACE_(richedit_style)("%s\n", buf);
204 void ME_DumpStyleToBuf(CHARFORMAT2W *pFmt, char buf[2048])
206 /* FIXME only CHARFORMAT styles implemented */
207 /* this function sucks, doesn't check for buffer overruns but it's "good enough" as for debug code */
210 p += sprintf(p, "Font face: ");
211 if (pFmt->dwMask & CFM_FACE) {
212 WCHAR *q = pFmt->szFaceName;
214 *p++ = (*q > 255) ? '?' : *q;
218 p += sprintf(p, "N/A");
220 if (pFmt->dwMask & CFM_SIZE)
221 p += sprintf(p, "\nFont size: %d\n", (int)pFmt->yHeight);
223 p += sprintf(p, "\nFont size: N/A\n");
225 if (pFmt->dwMask & CFM_OFFSET)
226 p += sprintf(p, "Char offset: %d\n", (int)pFmt->yOffset);
228 p += sprintf(p, "Char offset: N/A\n");
230 if (pFmt->dwMask & CFM_CHARSET)
231 p += sprintf(p, "Font charset: %d\n", (int)pFmt->bCharSet);
233 p += sprintf(p, "Font charset: N/A\n");
235 /* I'm assuming CFM_xxx and CFE_xxx are the same values, fortunately it IS true wrt used flags*/
236 ME_DumpStyleEffect(&p, "Font bold:", pFmt, CFM_BOLD);
237 ME_DumpStyleEffect(&p, "Font italic:", pFmt, CFM_ITALIC);
238 ME_DumpStyleEffect(&p, "Font underline:", pFmt, CFM_UNDERLINE);
239 ME_DumpStyleEffect(&p, "Font strikeout:", pFmt, CFM_STRIKEOUT);
240 ME_DumpStyleEffect(&p, "Hidden text:", pFmt, CFM_HIDDEN);
241 p += sprintf(p, "Text color: ");
242 if (pFmt->dwMask & CFM_COLOR)
244 if (pFmt->dwEffects & CFE_AUTOCOLOR)
245 p += sprintf(p, "auto\n");
247 p += sprintf(p, "%06x\n", (int)pFmt->crTextColor);
250 p += sprintf(p, "N/A\n");
251 ME_DumpStyleEffect(&p, "Text protected:", pFmt, CFM_PROTECTED);
256 ME_LogFontFromStyle(HDC hDC, LOGFONTW *lf, ME_Style *s, int nZoomNumerator, int nZoomDenominator)
259 rx = GetDeviceCaps(hDC, LOGPIXELSX);
260 ry = GetDeviceCaps(hDC, LOGPIXELSY);
261 ZeroMemory(lf, sizeof(LOGFONTW));
262 lstrcpyW(lf->lfFaceName, s->fmt.szFaceName);
264 if (nZoomNumerator == 0)
267 nZoomDenominator = 1;
269 lf->lfHeight = -s->fmt.yHeight*ry*nZoomNumerator/nZoomDenominator/1440;
272 if (s->fmt.dwEffects & s->fmt.dwMask & CFM_BOLD)
274 if (s->fmt.dwEffects & s->fmt.dwMask & CFM_WEIGHT)
275 lf->lfWeight = s->fmt.wWeight;
276 if (s->fmt.dwEffects & s->fmt.dwMask & CFM_ITALIC)
278 if (s->fmt.dwEffects & s->fmt.dwMask & (CFM_UNDERLINE | CFE_LINK))
280 if (s->fmt.dwEffects & s->fmt.dwMask & CFM_STRIKEOUT)
282 if (s->fmt.dwEffects & s->fmt.dwMask & (CFM_SUBSCRIPT|CFM_SUPERSCRIPT))
283 lf->lfHeight = (lf->lfHeight*2)/3;
284 /*lf.lfQuality = PROOF_QUALITY; */
285 lf->lfPitchAndFamily = s->fmt.bPitchAndFamily;
286 lf->lfCharSet = s->fmt.bCharSet;
289 void ME_CharFormatFromLogFont(HDC hDC, LOGFONTW *lf, CHARFORMAT2W *fmt)
293 ME_InitCharFormat2W(fmt);
294 rx = GetDeviceCaps(hDC, LOGPIXELSX);
295 ry = GetDeviceCaps(hDC, LOGPIXELSY);
296 lstrcpyW(fmt->szFaceName, lf->lfFaceName);
298 fmt->dwMask = CFM_WEIGHT|CFM_BOLD|CFM_ITALIC|CFM_UNDERLINE|CFM_STRIKEOUT|CFM_SIZE|CFM_FACE|CFM_CHARSET;
299 fmt->wWeight = lf->lfWeight;
300 fmt->yHeight = -lf->lfHeight*1440/ry;
301 if (lf->lfWeight>400) fmt->dwEffects |= CFM_BOLD;
302 if (lf->lfItalic) fmt->dwEffects |= CFM_ITALIC;
303 if (lf->lfUnderline) fmt->dwEffects |= CFM_UNDERLINE;
304 /* notice that if a logfont was created with underline due to CFM_LINK, this
305 would add an erronious CFM_UNDERLINE. This isn't currently ever a problem */
306 if (lf->lfStrikeOut) fmt->dwEffects |= CFM_STRIKEOUT;
307 fmt->bPitchAndFamily = lf->lfPitchAndFamily;
308 fmt->bCharSet = lf->lfCharSet;
311 BOOL ME_IsFontEqual(LOGFONTW *p1, LOGFONTW *p2)
313 if (memcmp(p1, p2, sizeof(LOGFONTW)-sizeof(p1->lfFaceName)))
315 if (lstrcmpW(p1->lfFaceName, p2->lfFaceName))
320 HFONT ME_SelectStyleFont(ME_TextEditor *editor, HDC hDC, ME_Style *s)
324 int i, nEmpty, nAge = 0x7FFFFFFF;
325 ME_FontCacheItem *item;
329 ME_LogFontFromStyle(hDC, &lf, s, editor->nZoomNumerator, editor->nZoomDenominator);
331 for (i=0; i<HFONT_CACHE_SIZE; i++)
332 editor->pFontCache[i].nAge++;
333 for (i=0, nEmpty=-1, nAge=0; i<HFONT_CACHE_SIZE; i++)
335 item = &editor->pFontCache[i];
338 if (item->nAge > nAge)
339 nEmpty = i, nAge = item->nAge;
341 if (item->hFont && ME_IsFontEqual(&item->lfSpecs, &lf))
344 if (i < HFONT_CACHE_SIZE) /* found */
346 item = &editor->pFontCache[i];
347 TRACE_(richedit_style)("font reused %d\n", i);
349 s->hFont = item->hFont;
354 item = &editor->pFontCache[nEmpty]; /* this legal even when nEmpty == -1, as we don't dereference it */
356 assert(nEmpty != -1); /* otherwise we leak cache entries or get too many fonts at once*/
358 TRACE_(richedit_style)("font deleted %d\n", nEmpty);
359 DeleteObject(item->hFont);
362 s->hFont = CreateFontIndirectW(&lf);
364 TRACE_(richedit_style)("font created %d\n", nEmpty);
365 item->hFont = s->hFont;
367 memcpy(&item->lfSpecs, &lf, sizeof(LOGFONTW));
369 hOldFont = SelectObject(hDC, s->hFont);
370 /* should be cached too, maybe ? */
371 GetTextMetricsW(hDC, &s->tm);
375 void ME_UnselectStyleFont(ME_TextEditor *editor, HDC hDC, ME_Style *s, HFONT hOldFont)
381 SelectObject(hDC, hOldFont);
382 for (i=0; i<HFONT_CACHE_SIZE; i++)
384 ME_FontCacheItem *pItem = &editor->pFontCache[i];
385 if (pItem->hFont == s->hFont && pItem->nRefs > 0)
393 assert(0 == "UnselectStyleFont without SelectStyleFont");
396 static void ME_DestroyStyle(ME_Style *s) {
399 DeleteObject(s->hFont);
405 void ME_AddRefStyle(ME_Style *s)
407 assert(s->nRefs>0); /* style with 0 references isn't supposed to exist */
412 void ME_ReleaseStyle(ME_Style *s)
417 TRACE_(richedit_style)("destroy style %p, total refs=%d\n", s, all_refs);
419 TRACE_(richedit_style)("release style %p, new refs=%d, total refs=%d\n", s, s->nRefs, all_refs);
420 if (!all_refs) TRACE("all style references freed (good!)\n");
426 ME_Style *ME_GetInsertStyle(ME_TextEditor *editor, int nCursor) {
427 if (ME_IsSelection(editor))
432 ME_GetSelection(editor, &from, &to);
433 ME_CursorFromCharOfs(editor, from, &c);
434 ME_AddRefStyle(c.pRun->member.run.style);
435 return c.pRun->member.run.style;
437 if (editor->pBuffer->pCharStyle) {
438 ME_AddRefStyle(editor->pBuffer->pCharStyle);
439 return editor->pBuffer->pCharStyle;
443 ME_Cursor *pCursor = &editor->pCursors[nCursor];
444 ME_DisplayItem *pRunItem = pCursor->pRun;
445 ME_DisplayItem *pPrevItem = NULL;
446 if (pCursor->nOffset) {
447 ME_Run *pRun = &pRunItem->member.run;
448 ME_AddRefStyle(pRun->style);
451 pPrevItem = ME_FindItemBack(pRunItem, diRunOrParagraph);
452 if (pPrevItem->type == diRun)
454 ME_AddRefStyle(pPrevItem->member.run.style);
455 return pPrevItem->member.run.style;
459 ME_AddRefStyle(pRunItem->member.run.style);
460 return pRunItem->member.run.style;
465 void ME_SaveTempStyle(ME_TextEditor *editor)
467 ME_Style *old_style = editor->pBuffer->pCharStyle;
468 editor->pBuffer->pCharStyle = ME_GetInsertStyle(editor, 0);
470 ME_ReleaseStyle(old_style);
473 void ME_ClearTempStyle(ME_TextEditor *editor)
475 if (!editor->pBuffer->pCharStyle) return;
476 ME_ReleaseStyle(editor->pBuffer->pCharStyle);
477 editor->pBuffer->pCharStyle = NULL;