2 * X11 graphics driver text functions
4 * Copyright 1993,1994 Alexandre Julliard
22 #include "debugtools.h"
24 DEFAULT_DEBUG_CHANNEL(text);
26 #define SWAP_INT(a,b) { int t = a; a = b; b = t; }
27 #define IROUND(x) (int)((x)>0? (x)+0.5 : (x) - 0.5)
30 /***********************************************************************
34 X11DRV_ExtTextOut( DC *dc, INT x, INT y, UINT flags,
35 const RECT *lprect, LPCWSTR wstr, UINT count,
40 INT width, ascent, descent, xwidth, ywidth;
43 char dfBreakChar, lfUnderline, lfStrikeOut;
45 X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
46 XChar2b *str2b = NULL;
47 BOOL dibUpdateFlag = FALSE;
50 if (!X11DRV_SetupGCForText( dc )) return TRUE;
52 pfo = XFONT_GetFontObject( physDev->font );
55 if (pfo->lf.lfEscapement && pfo->lpX11Trans)
57 dfBreakChar = (char)pfo->fi->df.dfBreakChar;
58 lfUnderline = (pfo->fo_flags & FO_SYNTH_UNDERLINE) ? 1 : 0;
59 lfStrikeOut = (pfo->fo_flags & FO_SYNTH_STRIKEOUT) ? 1 : 0;
61 TRACE("hdc=%04x df=%04x %d,%d %s, %d flags=%d lpDx=%p\n",
62 dc->hSelf, (UINT16)(physDev->font), x, y,
63 debugstr_wn (wstr, count), count, flags, lpDx);
65 /* some strings sent here end in a newline for whatever reason. I have no
66 clue what the right treatment should be in general, but ignoring
67 terminating newlines seems ok. MW, April 1998. */
68 if (count > 0 && wstr[count - 1] == '\n') count--;
70 if (lprect != NULL) TRACE("\trect=(%d,%d - %d,%d)\n",
71 lprect->left, lprect->top,
72 lprect->right, lprect->bottom );
73 /* Setup coordinates */
75 if (dc->textAlign & TA_UPDATECP)
81 if (flags & (ETO_OPAQUE | ETO_CLIPPED)) /* there's a rectangle */
83 if (!lprect) /* not always */
86 if (flags & ETO_CLIPPED) /* Can't clip with no rectangle */
88 if (!X11DRV_GetTextExtentPoint( dc, wstr, count, &sz ))
90 rect.left = INTERNAL_XWPTODP( dc, x, y );
91 rect.right = INTERNAL_XWPTODP( dc, x+sz.cx, y+sz.cy );
92 rect.top = INTERNAL_YWPTODP( dc, x, y );
93 rect.bottom = INTERNAL_YWPTODP( dc, x+sz.cx, y+sz.cy );
97 rect.left = INTERNAL_XWPTODP( dc, lprect->left, lprect->top );
98 rect.right = INTERNAL_XWPTODP( dc, lprect->right, lprect->bottom );
99 rect.top = INTERNAL_YWPTODP( dc, lprect->left, lprect->top );
100 rect.bottom = INTERNAL_YWPTODP( dc, lprect->right, lprect->bottom );
102 if (rect.right < rect.left) SWAP_INT( rect.left, rect.right );
103 if (rect.bottom < rect.top) SWAP_INT( rect.top, rect.bottom );
106 x = INTERNAL_XWPTODP( dc, x, y );
107 y = INTERNAL_YWPTODP( dc, x, y );
109 TRACE("\treal coord: x=%i, y=%i, rect=(%d,%d - %d,%d)\n",
110 x, y, rect.left, rect.top, rect.right, rect.bottom);
112 /* Draw the rectangle */
114 if (flags & ETO_OPAQUE)
116 X11DRV_LockDIBSection( dc, DIB_Status_GdiMod, FALSE );
117 dibUpdateFlag = TRUE;
118 TSXSetForeground( gdi_display, physDev->gc, physDev->backgroundPixel );
119 TSXFillRectangle( gdi_display, physDev->drawable, physDev->gc,
120 dc->DCOrgX + rect.left, dc->DCOrgY + rect.top,
121 rect.right-rect.left, rect.bottom-rect.top );
123 if (!count) goto END; /* Nothing more to do */
125 /* Compute text starting position */
127 if (lpDx) /* have explicit character cell x offsets in logical coordinates */
129 for (i = width = 0; i < count; i++) width += lpDx[i];
130 width = INTERNAL_XWSTODS(dc, width);
135 if (!X11DRV_GetTextExtentPoint( dc, wstr, count, &sz ))
137 width = INTERNAL_XWSTODS(dc, sz.cx);
139 ascent = pfo->lpX11Trans ? pfo->lpX11Trans->ascent : font->ascent;
140 descent = pfo->lpX11Trans ? pfo->lpX11Trans->descent : font->descent;
141 xwidth = pfo->lpX11Trans ? width * pfo->lpX11Trans->a /
142 pfo->lpX11Trans->pixelsize : width;
143 ywidth = pfo->lpX11Trans ? width * pfo->lpX11Trans->b /
144 pfo->lpX11Trans->pixelsize : 0;
146 switch( dc->textAlign & (TA_LEFT | TA_RIGHT | TA_CENTER) )
149 if (dc->textAlign & TA_UPDATECP) {
150 dc->CursPosX = INTERNAL_XDPTOWP( dc, x + xwidth, y - ywidth );
151 dc->CursPosY = INTERNAL_YDPTOWP( dc, x + xwidth, y - ywidth );
157 if (dc->textAlign & TA_UPDATECP) {
158 dc->CursPosX = INTERNAL_XDPTOWP( dc, x, y );
159 dc->CursPosY = INTERNAL_YDPTOWP( dc, x, y );
168 switch( dc->textAlign & (TA_TOP | TA_BOTTOM | TA_BASELINE) )
171 x -= pfo->lpX11Trans ? ascent * pfo->lpX11Trans->c /
172 pfo->lpX11Trans->pixelsize : 0;
173 y += pfo->lpX11Trans ? ascent * pfo->lpX11Trans->d /
174 pfo->lpX11Trans->pixelsize : ascent;
177 x += pfo->lpX11Trans ? descent * pfo->lpX11Trans->c /
178 pfo->lpX11Trans->pixelsize : 0;
179 y -= pfo->lpX11Trans ? descent * pfo->lpX11Trans->d /
180 pfo->lpX11Trans->pixelsize : descent;
186 /* Set the clip region */
188 if (flags & ETO_CLIPPED)
190 SaveVisRgn16( dc->hSelf );
191 CLIPPING_IntersectVisRect( dc, rect.left, rect.top, rect.right,
192 rect.bottom, FALSE );
195 /* Draw the text background if necessary */
199 X11DRV_LockDIBSection( dc, DIB_Status_GdiMod, FALSE );
200 dibUpdateFlag = TRUE;
203 if (dc->backgroundMode != TRANSPARENT)
205 /* If rectangle is opaque and clipped, do nothing */
206 if (!(flags & ETO_CLIPPED) || !(flags & ETO_OPAQUE))
208 /* Only draw if rectangle is not opaque or if some */
209 /* text is outside the rectangle */
210 if (!(flags & ETO_OPAQUE) ||
212 (x + width >= rect.right) ||
213 (y - ascent < rect.top) ||
214 (y + descent >= rect.bottom))
216 TSXSetForeground( gdi_display, physDev->gc, physDev->backgroundPixel );
217 TSXFillRectangle( gdi_display, physDev->drawable, physDev->gc,
219 dc->DCOrgY + y - ascent,
226 /* Draw the text (count > 0 verified) */
227 if (!(str2b = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, wstr, count )))
230 TSXSetForeground( gdi_display, physDev->gc, physDev->textPixel );
233 if (!dc->charExtra && !dc->breakExtra && !lpDx)
235 X11DRV_cptable[pfo->fi->cptable].pDrawString(
236 pfo, gdi_display, physDev->drawable, physDev->gc,
237 dc->DCOrgX + x, dc->DCOrgY + y, str2b, count );
239 else /* Now the fun begins... */
241 XTextItem16 *items, *pitem;
244 /* allocate max items */
246 pitem = items = HeapAlloc( GetProcessHeap(), 0,
247 count * sizeof(XTextItem16) );
248 if(items == NULL) goto FAIL;
250 if( lpDx ) /* explicit character widths */
253 unsigned short err = 0;
255 ve_we = (LONG)(dc->xformWorld2Vport.eM11 * 0x10000);
259 /* initialize text item with accumulated delta */
264 pitem->chars = str2b + i;
265 pitem->delta = delta;
270 /* add characters to the same XTextItem
271 * until new delta becomes non-zero */
276 fSum = sum*ve_we+err;
277 delta = SHIWORD(fSum)
278 - X11DRV_cptable[pfo->fi->cptable].pTextWidth(
279 pfo, pitem->chars, pitem->nchars+1);
281 } while ((++i < count) && !delta);
286 else /* charExtra or breakExtra */
290 pitem->chars = str2b + i;
291 pitem->delta = delta;
298 delta += dc->charExtra;
299 if (str2b[i].byte2 == (char)dfBreakChar)
300 delta += dc->breakExtra;
302 } while ((++i < count) && !delta);
307 X11DRV_cptable[pfo->fi->cptable].pDrawText( pfo, gdi_display,
308 physDev->drawable, physDev->gc,
309 dc->DCOrgX + x, dc->DCOrgY + y, items, pitem - items );
310 HeapFree( GetProcessHeap(), 0, items );
315 /* have to render character by character. */
319 for (i=0; i<count; i++)
321 int char_metric_offset = str2b[i].byte2 + (str2b[i].byte1 << 8)
322 - font->min_char_or_byte2;
323 int x_i = IROUND((double) (dc->DCOrgX + x) + offset *
324 pfo->lpX11Trans->a / pfo->lpX11Trans->pixelsize );
325 int y_i = IROUND((double) (dc->DCOrgY + y) - offset *
326 pfo->lpX11Trans->b / pfo->lpX11Trans->pixelsize );
328 X11DRV_cptable[pfo->fi->cptable].pDrawString(
329 pfo, gdi_display, physDev->drawable, physDev->gc,
330 x_i, y_i, &str2b[i], 1);
333 offset += INTERNAL_XWSTODS(dc, lpDx[i]);
337 offset += (double) (font->per_char ?
338 font->per_char[char_metric_offset].attributes:
339 font->min_bounds.attributes)
340 * pfo->lpX11Trans->pixelsize / 1000.0;
341 offset += dc->charExtra;
342 if (str2b[i].byte2 == (char)dfBreakChar)
343 offset += dc->breakExtra;
347 HeapFree( GetProcessHeap(), 0, str2b );
349 /* Draw underline and strike-out if needed */
353 long linePos, lineWidth;
355 if (!TSXGetFontProperty( font, XA_UNDERLINE_POSITION, &linePos ))
356 linePos = descent - 1;
357 if (!TSXGetFontProperty( font, XA_UNDERLINE_THICKNESS, &lineWidth ))
359 else if (lineWidth == 1) lineWidth = 0;
360 TSXSetLineAttributes( gdi_display, physDev->gc, lineWidth,
361 LineSolid, CapRound, JoinBevel );
362 TSXDrawLine( gdi_display, physDev->drawable, physDev->gc,
363 dc->DCOrgX + x, dc->DCOrgY + y + linePos,
364 dc->DCOrgX + x + width, dc->DCOrgY + y + linePos );
368 long lineAscent, lineDescent;
369 if (!TSXGetFontProperty( font, XA_STRIKEOUT_ASCENT, &lineAscent ))
370 lineAscent = ascent / 2;
371 if (!TSXGetFontProperty( font, XA_STRIKEOUT_DESCENT, &lineDescent ))
372 lineDescent = -lineAscent * 2 / 3;
373 TSXSetLineAttributes( gdi_display, physDev->gc, lineAscent + lineDescent,
374 LineSolid, CapRound, JoinBevel );
375 TSXDrawLine( gdi_display, physDev->drawable, physDev->gc,
376 dc->DCOrgX + x, dc->DCOrgY + y - lineAscent,
377 dc->DCOrgX + x + width, dc->DCOrgY + y - lineAscent );
380 if (flags & ETO_CLIPPED)
381 RestoreVisRgn16( dc->hSelf );
386 if(str2b != NULL) HeapFree( GetProcessHeap(), 0, str2b );
390 if (dibUpdateFlag) X11DRV_UnlockDIBSection( dc, TRUE );
395 /***********************************************************************
396 * X11DRV_GetTextExtentPoint
398 BOOL X11DRV_GetTextExtentPoint( DC *dc, LPCWSTR str, INT count,
401 X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
402 fontObject* pfo = XFONT_GetFontObject( physDev->font );
404 TRACE("%s %d\n", debugstr_wn(str,count), count);
406 XChar2b *p = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, str, count );
407 if (!p) return FALSE;
408 if( !pfo->lpX11Trans ) {
409 int dir, ascent, descent;
411 X11DRV_cptable[pfo->fi->cptable].pTextExtents( pfo, p,
412 count, &dir, &ascent, &descent, &info_width );
414 size->cx = fabs((FLOAT)(info_width + dc->breakRem + count *
415 dc->charExtra) * dc->xformVport2World.eM11);
416 size->cy = fabs((FLOAT)(pfo->fs->ascent + pfo->fs->descent) *
417 dc->xformVport2World.eM22);
420 float x = 0.0, y = 0.0;
421 /* FIXME: Deal with *_char_or_byte2 != 0 situations */
422 for(i = 0; i < count; i++) {
423 x += pfo->fs->per_char ?
424 pfo->fs->per_char[p[i].byte2 - pfo->fs->min_char_or_byte2].attributes :
425 pfo->fs->min_bounds.attributes;
427 y = pfo->lpX11Trans->RAW_ASCENT + pfo->lpX11Trans->RAW_DESCENT;
428 TRACE("x = %f y = %f\n", x, y);
429 x *= pfo->lpX11Trans->pixelsize / 1000.0;
430 y *= pfo->lpX11Trans->pixelsize / 1000.0;
431 size->cx = fabs((x + dc->breakRem + count * dc->charExtra) *
432 dc->xformVport2World.eM11);
433 size->cy = fabs(y * dc->xformVport2World.eM22);
435 size->cx *= pfo->rescale;
436 size->cy *= pfo->rescale;
437 HeapFree( GetProcessHeap(), 0, p );