2 * X11 graphics driver text functions
4 * Copyright 1993,1994 Alexandre Julliard
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 #include "wine/debug.h"
35 WINE_DEFAULT_DEBUG_CHANNEL(text);
37 #define SWAP_INT(a,b) { int t = a; a = b; b = t; }
38 #define IROUND(x) (int)((x)>0? (x)+0.5 : (x) - 0.5)
41 /***********************************************************************
45 X11DRV_ExtTextOut( X11DRV_PDEVICE *physDev, INT x, INT y, UINT flags,
46 const RECT *lprect, LPCWSTR wstr, UINT count,
51 INT width, ascent, descent, xwidth, ywidth;
54 char dfBreakChar, lfUnderline, lfStrikeOut;
56 XChar2b *str2b = NULL;
57 BOOL dibUpdateFlag = FALSE;
61 UINT align = GetTextAlign( physDev->hdc );
64 return X11DRV_XRender_ExtTextOut(physDev, x, y, flags, lprect, wstr, count,
68 if (!X11DRV_SetupGCForText( physDev )) return TRUE;
70 pfo = XFONT_GetFontObject( physDev->font );
73 if (pfo->lf.lfEscapement && pfo->lpX11Trans)
75 dfBreakChar = (char)pfo->fi->df.dfBreakChar;
76 lfUnderline = (pfo->fo_flags & FO_SYNTH_UNDERLINE) ? 1 : 0;
77 lfStrikeOut = (pfo->fo_flags & FO_SYNTH_STRIKEOUT) ? 1 : 0;
79 TRACE("hdc=%p df=%04x %d,%d %s, %d flags=%d lpDx=%p\n",
80 physDev->hdc, (UINT16)(physDev->font), x, y,
81 debugstr_wn (wstr, count), count, flags, lpDx);
83 /* some strings sent here end in a newline for whatever reason. I have no
84 clue what the right treatment should be in general, but ignoring
85 terminating newlines seems ok. MW, April 1998. */
86 if (count > 0 && wstr[count - 1] == '\n') count--;
88 if (lprect != NULL) TRACE("\trect=(%ld,%ld - %ld,%ld)\n",
89 lprect->left, lprect->top,
90 lprect->right, lprect->bottom );
91 /* Setup coordinates */
93 if (align & TA_UPDATECP)
95 GetCurrentPositionEx( physDev->hdc, &pt );
100 if (flags & (ETO_OPAQUE | ETO_CLIPPED)) /* there's a rectangle */
102 if (!lprect) /* not always */
105 if (flags & ETO_CLIPPED) /* Can't clip with no rectangle */
107 if (!X11DRV_GetTextExtentPoint( physDev, wstr, count, &sz ))
110 rect.right = x + sz.cx;
112 rect.bottom = y + sz.cy;
118 LPtoDP(physDev->hdc, (POINT*)&rect, 2);
120 if (rect.right < rect.left) SWAP_INT( rect.left, rect.right );
121 if (rect.bottom < rect.top) SWAP_INT( rect.top, rect.bottom );
126 LPtoDP(physDev->hdc, &pt, 1);
130 TRACE("\treal coord: x=%i, y=%i, rect=(%ld,%ld - %ld,%ld)\n",
131 x, y, rect.left, rect.top, rect.right, rect.bottom);
133 /* Draw the rectangle */
135 if (flags & ETO_OPAQUE)
137 X11DRV_LockDIBSection( physDev, DIB_Status_GdiMod, FALSE );
138 dibUpdateFlag = TRUE;
140 XSetForeground( gdi_display, physDev->gc, physDev->backgroundPixel );
141 XFillRectangle( gdi_display, physDev->drawable, physDev->gc,
142 physDev->org.x + rect.left, physDev->org.y + rect.top,
143 rect.right-rect.left, rect.bottom-rect.top );
146 if (!count) goto END; /* Nothing more to do */
148 /* Compute text starting position */
150 if (lpDx) /* have explicit character cell x offsets in logical coordinates */
152 for (i = width = 0; i < count; i++) width += lpDx[i];
153 width = X11DRV_XWStoDS(physDev, width);
158 if (!X11DRV_GetTextExtentPoint( physDev, wstr, count, &sz ))
163 width = X11DRV_XWStoDS(physDev, sz.cx);
165 ascent = pfo->lpX11Trans ? pfo->lpX11Trans->ascent : font->ascent;
166 descent = pfo->lpX11Trans ? pfo->lpX11Trans->descent : font->descent;
167 xwidth = pfo->lpX11Trans ? width * pfo->lpX11Trans->a /
168 pfo->lpX11Trans->pixelsize : width;
169 ywidth = pfo->lpX11Trans ? width * pfo->lpX11Trans->b /
170 pfo->lpX11Trans->pixelsize : 0;
172 switch( align & (TA_LEFT | TA_RIGHT | TA_CENTER) )
175 if (align & TA_UPDATECP) {
178 DPtoLP(physDev->hdc, &pt, 1);
179 MoveToEx(physDev->hdc, pt.x, pt.y, NULL);
185 if (align & TA_UPDATECP) {
188 DPtoLP(physDev->hdc, &pt, 1);
189 MoveToEx(physDev->hdc, pt.x, pt.y, NULL);
198 switch( align & (TA_TOP | TA_BOTTOM | TA_BASELINE) )
201 x -= pfo->lpX11Trans ? ascent * pfo->lpX11Trans->c /
202 pfo->lpX11Trans->pixelsize : 0;
203 y += pfo->lpX11Trans ? ascent * pfo->lpX11Trans->d /
204 pfo->lpX11Trans->pixelsize : ascent;
207 x += pfo->lpX11Trans ? descent * pfo->lpX11Trans->c /
208 pfo->lpX11Trans->pixelsize : 0;
209 y -= pfo->lpX11Trans ? descent * pfo->lpX11Trans->d /
210 pfo->lpX11Trans->pixelsize : descent;
216 /* Set the clip region */
218 if (flags & ETO_CLIPPED)
220 SaveVisRgn16( HDC_16(physDev->hdc) );
221 IntersectVisRect16( HDC_16(physDev->hdc), lprect->left, lprect->top, lprect->right, lprect->bottom );
224 /* Draw the text background if necessary */
228 X11DRV_LockDIBSection( physDev, DIB_Status_GdiMod, FALSE );
229 dibUpdateFlag = TRUE;
232 if (GetBkMode( physDev->hdc ) != TRANSPARENT)
234 /* If rectangle is opaque and clipped, do nothing */
235 if (!(flags & ETO_CLIPPED) || !(flags & ETO_OPAQUE))
237 /* Only draw if rectangle is not opaque or if some */
238 /* text is outside the rectangle */
239 if (!(flags & ETO_OPAQUE) ||
241 (x + width >= rect.right) ||
242 (y - ascent < rect.top) ||
243 (y + descent >= rect.bottom))
246 XSetForeground( gdi_display, physDev->gc, physDev->backgroundPixel );
247 XFillRectangle( gdi_display, physDev->drawable, physDev->gc,
248 physDev->org.x + x, physDev->org.y + y - ascent,
249 width, ascent + descent );
255 /* Draw the text (count > 0 verified) */
256 if (!(str2b = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, wstr, count )))
260 XSetForeground( gdi_display, physDev->gc, physDev->textPixel );
264 if (!dc->charExtra && !dc->breakExtra && !lpDx)
266 X11DRV_cptable[pfo->fi->cptable].pDrawString(
267 pfo, gdi_display, physDev->drawable, physDev->gc,
268 physDev->org.x + x, physDev->org.y + y, str2b, count );
270 else /* Now the fun begins... */
272 XTextItem16 *items, *pitem;
275 /* allocate max items */
277 pitem = items = HeapAlloc( GetProcessHeap(), 0,
278 count * sizeof(XTextItem16) );
279 if(items == NULL) goto FAIL;
281 if( lpDx ) /* explicit character widths */
284 unsigned short err = 0;
286 ve_we = (LONG)(dc->xformWorld2Vport.eM11 * 0x10000);
290 /* initialize text item with accumulated delta */
295 pitem->chars = str2b + i;
296 pitem->delta = delta;
301 /* add characters to the same XTextItem
302 * until new delta becomes non-zero */
307 fSum = sum*ve_we+err;
308 delta = (short)HIWORD(fSum)
309 - X11DRV_cptable[pfo->fi->cptable].pTextWidth(
310 pfo, pitem->chars, pitem->nchars+1);
312 } while ((++i < count) && !delta);
317 else /* charExtra or breakExtra */
321 pitem->chars = str2b + i;
322 pitem->delta = delta;
329 delta += dc->charExtra;
330 if (str2b[i].byte2 == (char)dfBreakChar)
331 delta += dc->breakExtra;
333 } while ((++i < count) && !delta);
338 X11DRV_cptable[pfo->fi->cptable].pDrawText( pfo, gdi_display,
339 physDev->drawable, physDev->gc,
340 physDev->org.x + x, physDev->org.y + y, items, pitem - items );
341 HeapFree( GetProcessHeap(), 0, items );
346 /* have to render character by character. */
350 for (i=0; i<count; i++)
352 int char_metric_offset = str2b[i].byte2 + (str2b[i].byte1 << 8)
353 - font->min_char_or_byte2;
354 int x_i = IROUND((double) (physDev->org.x + x) + offset *
355 pfo->lpX11Trans->a / pfo->lpX11Trans->pixelsize );
356 int y_i = IROUND((double) (physDev->org.y + y) - offset *
357 pfo->lpX11Trans->b / pfo->lpX11Trans->pixelsize );
359 X11DRV_cptable[pfo->fi->cptable].pDrawString(
360 pfo, gdi_display, physDev->drawable, physDev->gc,
361 x_i, y_i, &str2b[i], 1);
364 offset += X11DRV_XWStoDS(physDev, lpDx[i]);
368 offset += (double) (font->per_char ?
369 font->per_char[char_metric_offset].attributes:
370 font->min_bounds.attributes)
371 * pfo->lpX11Trans->pixelsize / 1000.0;
372 offset += dc->charExtra;
373 if (str2b[i].byte2 == (char)dfBreakChar)
374 offset += dc->breakExtra;
378 HeapFree( GetProcessHeap(), 0, str2b );
380 /* Draw underline and strike-out if needed */
385 long linePos, lineWidth;
387 if (!XGetFontProperty( font, XA_UNDERLINE_POSITION, &linePos ))
388 linePos = descent - 1;
389 if (!XGetFontProperty( font, XA_UNDERLINE_THICKNESS, &lineWidth ))
391 else if (lineWidth == 1) lineWidth = 0;
392 XSetLineAttributes( gdi_display, physDev->gc, lineWidth,
393 LineSolid, CapRound, JoinBevel );
394 XDrawLine( gdi_display, physDev->drawable, physDev->gc,
395 physDev->org.x + x, physDev->org.y + y + linePos,
396 physDev->org.x + x + width, physDev->org.y + y + linePos );
400 long lineAscent, lineDescent;
401 if (!XGetFontProperty( font, XA_STRIKEOUT_ASCENT, &lineAscent ))
402 lineAscent = ascent / 2;
403 if (!XGetFontProperty( font, XA_STRIKEOUT_DESCENT, &lineDescent ))
404 lineDescent = -lineAscent * 2 / 3;
405 XSetLineAttributes( gdi_display, physDev->gc, lineAscent + lineDescent,
406 LineSolid, CapRound, JoinBevel );
407 XDrawLine( gdi_display, physDev->drawable, physDev->gc,
408 physDev->org.x + x, physDev->org.y + y - lineAscent,
409 physDev->org.x + x + width, physDev->org.y + y - lineAscent );
413 if (flags & ETO_CLIPPED) RestoreVisRgn16( HDC_16(physDev->hdc) );
417 if(str2b != NULL) HeapFree( GetProcessHeap(), 0, str2b );
421 if (dibUpdateFlag) X11DRV_UnlockDIBSection( physDev, TRUE );
426 /***********************************************************************
427 * X11DRV_GetTextExtentPoint
429 BOOL X11DRV_GetTextExtentPoint( X11DRV_PDEVICE *physDev, LPCWSTR str, INT count,
432 DC *dc = physDev->dc;
433 fontObject* pfo = XFONT_GetFontObject( physDev->font );
435 TRACE("%s %d\n", debugstr_wn(str,count), count);
437 XChar2b *p = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, str, count );
438 if (!p) return FALSE;
439 if( !pfo->lpX11Trans ) {
440 int dir, ascent, descent;
442 X11DRV_cptable[pfo->fi->cptable].pTextExtents( pfo, p,
443 count, &dir, &ascent, &descent, &info_width );
445 size->cx = fabs((FLOAT)(info_width + dc->breakRem + count *
446 dc->charExtra) * dc->xformVport2World.eM11);
447 size->cy = fabs((FLOAT)(pfo->fs->ascent + pfo->fs->descent) *
448 dc->xformVport2World.eM22);
451 float x = 0.0, y = 0.0;
452 /* FIXME: Deal with *_char_or_byte2 != 0 situations */
453 for(i = 0; i < count; i++) {
454 x += pfo->fs->per_char ?
455 pfo->fs->per_char[p[i].byte2 - pfo->fs->min_char_or_byte2].attributes :
456 pfo->fs->min_bounds.attributes;
458 y = pfo->lpX11Trans->RAW_ASCENT + pfo->lpX11Trans->RAW_DESCENT;
459 TRACE("x = %f y = %f\n", x, y);
460 x *= pfo->lpX11Trans->pixelsize / 1000.0;
461 y *= pfo->lpX11Trans->pixelsize / 1000.0;
462 size->cx = fabs((x + dc->breakRem + count * dc->charExtra) *
463 dc->xformVport2World.eM11);
464 size->cy = fabs(y * dc->xformVport2World.eM22);
466 size->cx *= pfo->rescale;
467 size->cy *= pfo->rescale;
468 HeapFree( GetProcessHeap(), 0, p );