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( display, physDev->gc, physDev->backgroundPixel );
119 TSXFillRectangle( 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( display, physDev->gc,
217 physDev->backgroundPixel );
218 TSXFillRectangle( display, physDev->drawable, physDev->gc,
220 dc->DCOrgY + y - ascent,
227 /* Draw the text (count > 0 verified) */
228 if (!(str2b = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, wstr, count )))
231 TSXSetForeground( display, physDev->gc, physDev->textPixel );
234 if (!dc->charExtra && !dc->breakExtra && !lpDx)
236 X11DRV_cptable[pfo->fi->cptable].pDrawString(
237 pfo, display, physDev->drawable, physDev->gc,
238 dc->DCOrgX + x, dc->DCOrgY + y, str2b, count );
240 else /* Now the fun begins... */
242 XTextItem16 *items, *pitem;
245 /* allocate max items */
247 pitem = items = HeapAlloc( GetProcessHeap(), 0,
248 count * sizeof(XTextItem16) );
249 if(items == NULL) goto FAIL;
251 if( lpDx ) /* explicit character widths */
254 unsigned short err = 0;
256 ve_we = (LONG)(dc->xformWorld2Vport.eM11 * 0x10000);
260 /* initialize text item with accumulated delta */
265 pitem->chars = str2b + i;
266 pitem->delta = delta;
271 /* add characters to the same XTextItem
272 * until new delta becomes non-zero */
277 fSum = sum*ve_we+err;
278 delta = SHIWORD(fSum)
279 - X11DRV_cptable[pfo->fi->cptable].pTextWidth(
280 pfo, pitem->chars, pitem->nchars+1);
282 } while ((++i < count) && !delta);
287 else /* charExtra or breakExtra */
291 pitem->chars = str2b + i;
292 pitem->delta = delta;
299 delta += dc->charExtra;
300 if (str2b[i].byte2 == (char)dfBreakChar)
301 delta += dc->breakExtra;
303 } while ((++i < count) && !delta);
308 X11DRV_cptable[pfo->fi->cptable].pDrawText( pfo, display,
309 physDev->drawable, physDev->gc,
310 dc->DCOrgX + x, dc->DCOrgY + y, items, pitem - items );
311 HeapFree( GetProcessHeap(), 0, items );
316 /* have to render character by character. */
320 for (i=0; i<count; i++)
322 int char_metric_offset = str2b[i].byte2 + (str2b[i].byte1 << 8)
323 - font->min_char_or_byte2;
324 int x_i = IROUND((double) (dc->DCOrgX + x) + offset *
325 pfo->lpX11Trans->a / pfo->lpX11Trans->pixelsize );
326 int y_i = IROUND((double) (dc->DCOrgY + y) - offset *
327 pfo->lpX11Trans->b / pfo->lpX11Trans->pixelsize );
329 X11DRV_cptable[pfo->fi->cptable].pDrawString(
330 pfo, display, physDev->drawable, physDev->gc,
331 x_i, y_i, &str2b[i], 1);
334 offset += INTERNAL_XWSTODS(dc, lpDx[i]);
338 offset += (double) (font->per_char ?
339 font->per_char[char_metric_offset].attributes:
340 font->min_bounds.attributes)
341 * pfo->lpX11Trans->pixelsize / 1000.0;
342 offset += dc->charExtra;
343 if (str2b[i].byte2 == (char)dfBreakChar)
344 offset += dc->breakExtra;
348 HeapFree( GetProcessHeap(), 0, str2b );
350 /* Draw underline and strike-out if needed */
354 long linePos, lineWidth;
356 if (!TSXGetFontProperty( font, XA_UNDERLINE_POSITION, &linePos ))
357 linePos = descent - 1;
358 if (!TSXGetFontProperty( font, XA_UNDERLINE_THICKNESS, &lineWidth ))
360 else if (lineWidth == 1) lineWidth = 0;
361 TSXSetLineAttributes( display, physDev->gc, lineWidth,
362 LineSolid, CapRound, JoinBevel );
363 TSXDrawLine( display, physDev->drawable, physDev->gc,
364 dc->DCOrgX + x, dc->DCOrgY + y + linePos,
365 dc->DCOrgX + x + width, dc->DCOrgY + y + linePos );
369 long lineAscent, lineDescent;
370 if (!TSXGetFontProperty( font, XA_STRIKEOUT_ASCENT, &lineAscent ))
371 lineAscent = ascent / 2;
372 if (!TSXGetFontProperty( font, XA_STRIKEOUT_DESCENT, &lineDescent ))
373 lineDescent = -lineAscent * 2 / 3;
374 TSXSetLineAttributes( display, physDev->gc, lineAscent + lineDescent,
375 LineSolid, CapRound, JoinBevel );
376 TSXDrawLine( display, physDev->drawable, physDev->gc,
377 dc->DCOrgX + x, dc->DCOrgY + y - lineAscent,
378 dc->DCOrgX + x + width, dc->DCOrgY + y - lineAscent );
381 if (flags & ETO_CLIPPED)
382 RestoreVisRgn16( dc->hSelf );
387 if(str2b != NULL) HeapFree( GetProcessHeap(), 0, str2b );
391 if (dibUpdateFlag) X11DRV_UnlockDIBSection( dc, TRUE );
396 /***********************************************************************
397 * X11DRV_GetTextExtentPoint
399 BOOL X11DRV_GetTextExtentPoint( DC *dc, LPCWSTR str, INT count,
402 X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
403 fontObject* pfo = XFONT_GetFontObject( physDev->font );
405 TRACE("%s %d\n", debugstr_wn(str,count), count);
407 XChar2b *p = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, str, count );
408 if (!p) return FALSE;
409 if( !pfo->lpX11Trans ) {
410 int dir, ascent, descent;
412 X11DRV_cptable[pfo->fi->cptable].pTextExtents( pfo, p,
413 count, &dir, &ascent, &descent, &info_width );
415 size->cx = fabs((FLOAT)(info_width + dc->breakRem + count *
416 dc->charExtra) * dc->xformVport2World.eM11);
417 size->cy = fabs((FLOAT)(pfo->fs->ascent + pfo->fs->descent) *
418 dc->xformVport2World.eM22);
421 float x = 0.0, y = 0.0;
422 /* FIXME: Deal with *_char_or_byte2 != 0 situations */
423 for(i = 0; i < count; i++) {
424 x += pfo->fs->per_char ?
425 pfo->fs->per_char[p[i].byte2 - pfo->fs->min_char_or_byte2].attributes :
426 pfo->fs->min_bounds.attributes;
428 y = pfo->lpX11Trans->RAW_ASCENT + pfo->lpX11Trans->RAW_DESCENT;
429 TRACE("x = %f y = %f\n", x, y);
430 x *= pfo->lpX11Trans->pixelsize / 1000.0;
431 y *= pfo->lpX11Trans->pixelsize / 1000.0;
432 size->cx = fabs((x + dc->breakRem + count * dc->charExtra) *
433 dc->xformVport2World.eM11);
434 size->cy = fabs(y * dc->xformVport2World.eM22);
436 size->cx *= pfo->rescale;
437 size->cy *= pfo->rescale;
438 HeapFree( GetProcessHeap(), 0, p );