2 * X11 graphics driver text functions
4 * Copyright 1993,1994 Alexandre Julliard
14 /*#include "callback.h"*/
20 #define SWAP_INT(a,b) { int t = a; a = b; b = t; }
21 #define IROUND(x) (int)((x)>0? (x)+0.5 : (x) - 0.5)
23 /***********************************************************************
27 X11DRV_ExtTextOut( DC
*dc
, INT32 x
, INT32 y
, UINT32 flags
,
28 const RECT32
*lprect
, LPCSTR str
, UINT32 count
,
34 INT32 width
, ascent
, descent
, xwidth
, ywidth
;
37 char dfBreakChar
, lfUnderline
, lfStrikeOut
;
38 BOOL32 rotated
= FALSE
;
40 if (!DC_SetupGCForText( dc
)) return TRUE
;
42 pfo
= XFONT_GetFontObject( dc
->u
.x
.font
);
45 if (pfo
->lf
.lfEscapement
&& pfo
->lpX11Trans
)
47 dfBreakChar
= (char)pfo
->fi
->df
.dfBreakChar
;
48 lfUnderline
= (pfo
->fo_flags
& FO_SYNTH_UNDERLINE
) ? 1 : 0;
49 lfStrikeOut
= (pfo
->fo_flags
& FO_SYNTH_STRIKEOUT
) ? 1 : 0;
51 TRACE(text
,"hdc=%04x df=%04x %d,%d %s, %d flags=%d lpDx=%p\n",
52 dc
->hSelf
, (UINT16
)(dc
->u
.x
.font
), x
, y
,
53 debugstr_an (str
, count
), count
, flags
, lpDx
);
55 /* some strings sent here end in a newline for whatever reason. I have no
56 clue what the right treatment should be in general, but ignoring
57 terminating newlines seems ok. MW, April 1998. */
58 if (count
> 0 && str
[count
- 1] == '\n') count
--;
60 if (lprect
!= NULL
) TRACE(text
, "\trect=(%d,%d - %d,%d)\n",
61 lprect
->left
, lprect
->top
,
62 lprect
->right
, lprect
->bottom
);
63 /* Setup coordinates */
65 if (dc
->w
.textAlign
& TA_UPDATECP
)
71 if (flags
& (ETO_OPAQUE
| ETO_CLIPPED
)) /* there's a rectangle */
73 if (!lprect
) /* not always */
76 if (flags
& ETO_CLIPPED
) /* Can't clip with no rectangle */
78 if (!X11DRV_GetTextExtentPoint( dc
, str
, count
, &sz
))
80 rect
.left
= XLPTODP( dc
, x
);
81 rect
.right
= XLPTODP( dc
, x
+sz
.cx
);
82 rect
.top
= YLPTODP( dc
, y
);
83 rect
.bottom
= YLPTODP( dc
, y
+sz
.cy
);
87 rect
.left
= XLPTODP( dc
, lprect
->left
);
88 rect
.right
= XLPTODP( dc
, lprect
->right
);
89 rect
.top
= YLPTODP( dc
, lprect
->top
);
90 rect
.bottom
= YLPTODP( dc
, lprect
->bottom
);
92 if (rect
.right
< rect
.left
) SWAP_INT( rect
.left
, rect
.right
);
93 if (rect
.bottom
< rect
.top
) SWAP_INT( rect
.top
, rect
.bottom
);
99 TRACE(text
,"\treal coord: x=%i, y=%i, rect=(%d,%d - %d,%d)\n",
100 x
, y
, rect
.left
, rect
.top
, rect
.right
, rect
.bottom
);
102 /* Draw the rectangle */
104 if (flags
& ETO_OPAQUE
)
106 TSXSetForeground( display
, dc
->u
.x
.gc
, dc
->w
.backgroundPixel
);
107 TSXFillRectangle( display
, dc
->u
.x
.drawable
, dc
->u
.x
.gc
,
108 dc
->w
.DCOrgX
+ rect
.left
, dc
->w
.DCOrgY
+ rect
.top
,
109 rect
.right
-rect
.left
, rect
.bottom
-rect
.top
);
111 if (!count
) return TRUE
; /* Nothing more to do */
113 /* Compute text starting position */
115 if (lpDx
) /* have explicit character cell x offsets in logical coordinates */
117 int extra
= dc
->wndExtX
/ 2;
118 for (i
= width
= 0; i
< count
; i
++) width
+= lpDx
[i
];
119 width
= (width
* dc
->vportExtX
+ extra
) / dc
->wndExtX
;
124 if (!X11DRV_GetTextExtentPoint( dc
, str
, count
, &sz
))
126 width
= XLSTODS(dc
, sz
.cx
);
128 ascent
= pfo
->lpX11Trans
? pfo
->lpX11Trans
->ascent
: font
->ascent
;
129 descent
= pfo
->lpX11Trans
? pfo
->lpX11Trans
->descent
: font
->descent
;
130 xwidth
= pfo
->lpX11Trans
? width
* pfo
->lpX11Trans
->a
/
131 pfo
->lpX11Trans
->pixelsize
: width
;
132 ywidth
= pfo
->lpX11Trans
? width
* pfo
->lpX11Trans
->b
/
133 pfo
->lpX11Trans
->pixelsize
: 0;
135 switch( dc
->w
.textAlign
& (TA_LEFT
| TA_RIGHT
| TA_CENTER
) )
138 if (dc
->w
.textAlign
& TA_UPDATECP
) {
139 dc
->w
.CursPosX
= XDPTOLP( dc
, x
+ xwidth
);
140 dc
->w
.CursPosY
= YDPTOLP( dc
, y
- ywidth
);
146 if (dc
->w
.textAlign
& TA_UPDATECP
) {
147 dc
->w
.CursPosX
= XDPTOLP( dc
, x
);
148 dc
->w
.CursPosY
= YDPTOLP( dc
, y
);
157 switch( dc
->w
.textAlign
& (TA_TOP
| TA_BOTTOM
| TA_BASELINE
) )
160 x
-= pfo
->lpX11Trans
? ascent
* pfo
->lpX11Trans
->c
/
161 pfo
->lpX11Trans
->pixelsize
: 0;
162 y
+= pfo
->lpX11Trans
? ascent
* pfo
->lpX11Trans
->d
/
163 pfo
->lpX11Trans
->pixelsize
: ascent
;
166 x
+= pfo
->lpX11Trans
? descent
* pfo
->lpX11Trans
->c
/
167 pfo
->lpX11Trans
->pixelsize
: 0;
168 y
-= pfo
->lpX11Trans
? descent
* pfo
->lpX11Trans
->d
/
169 pfo
->lpX11Trans
->pixelsize
: descent
;
175 /* Set the clip region */
177 if (flags
& ETO_CLIPPED
)
179 hRgnClip
= dc
->w
.hClipRgn
;
180 CLIPPING_IntersectClipRect( dc
, rect
.left
, rect
.top
, rect
.right
,
181 rect
.bottom
, CLIP_INTERSECT
|CLIP_KEEPRGN
);
184 /* Draw the text background if necessary */
186 if (dc
->w
.backgroundMode
!= TRANSPARENT
)
188 /* If rectangle is opaque and clipped, do nothing */
189 if (!(flags
& ETO_CLIPPED
) || !(flags
& ETO_OPAQUE
))
191 /* Only draw if rectangle is not opaque or if some */
192 /* text is outside the rectangle */
193 if (!(flags
& ETO_OPAQUE
) ||
195 (x
+ width
>= rect
.right
) ||
196 (y
- ascent
< rect
.top
) ||
197 (y
+ descent
>= rect
.bottom
))
199 TSXSetForeground( display
, dc
->u
.x
.gc
, dc
->w
.backgroundPixel
);
200 TSXFillRectangle( display
, dc
->u
.x
.drawable
, dc
->u
.x
.gc
,
202 dc
->w
.DCOrgY
+ y
- ascent
,
209 /* Draw the text (count > 0 verified) */
211 TSXSetForeground( display
, dc
->u
.x
.gc
, dc
->w
.textPixel
);
212 if (!dc
->w
.charExtra
&& !dc
->w
.breakExtra
&& !lpDx
)
216 TSXDrawString( display
, dc
->u
.x
.drawable
, dc
->u
.x
.gc
,
217 dc
->w
.DCOrgX
+ x
, dc
->w
.DCOrgY
+ y
, str
, count
);
221 /* have to render character by character. */
225 for(i
=0; i
<count
; i
++) {
226 int char_metric_offset
= (unsigned char) str
[i
]
227 - font
->min_char_or_byte2
;
228 int x_i
= IROUND((double) (dc
->w
.DCOrgX
+ x
) + offset
*
229 pfo
->lpX11Trans
->a
/ 1000.0 );
230 int y_i
= IROUND((double) (dc
->w
.DCOrgY
+ y
) - offset
*
231 pfo
->lpX11Trans
->b
/ 1000.0 );
233 TSXDrawString( display
, dc
->u
.x
.drawable
, dc
->u
.x
.gc
,
234 x_i
, y_i
, &str
[i
], 1);
235 offset
+= (double) (font
->per_char
?
236 font
->per_char
[char_metric_offset
].attributes
:
237 font
->min_bounds
.attributes
);
241 else /* Now the fun begins... */
243 XTextItem
*items
, *pitem
;
246 /* allocate max items */
248 pitem
= items
= HEAP_xalloc( GetProcessHeap(), 0,
249 count
* sizeof(XTextItem
) );
251 if( lpDx
) /* explicit character widths */
253 int extra
= dc
->wndExtX
/ 2;
257 /* initialize text item with accumulated delta */
259 pitem
->chars
= (char *)str
+ i
;
260 pitem
->delta
= delta
;
265 /* add characters to the same XTextItem until new delta
266 * becomes non-zero */
270 delta
+= (lpDx
[i
] * dc
->vportExtX
+ extra
) / dc
->wndExtX
271 - TSXTextWidth( font
, str
+ i
, 1);
273 } while ((++i
< count
) && !delta
);
277 else /* charExtra or breakExtra */
281 pitem
->chars
= (char *)str
+ i
;
282 pitem
->delta
= delta
;
289 delta
+= dc
->w
.charExtra
;
290 if (str
[i
] == (char)dfBreakChar
) delta
+= dc
->w
.breakExtra
;
292 } while ((++i
< count
) && !delta
);
297 TSXDrawText( display
, dc
->u
.x
.drawable
, dc
->u
.x
.gc
,
298 dc
->w
.DCOrgX
+ x
, dc
->w
.DCOrgY
+ y
, items
, pitem
- items
);
299 HeapFree( GetProcessHeap(), 0, items
);
302 /* Draw underline and strike-out if needed */
306 long linePos
, lineWidth
;
308 if (!TSXGetFontProperty( font
, XA_UNDERLINE_POSITION
, &linePos
))
309 linePos
= descent
- 1;
310 if (!TSXGetFontProperty( font
, XA_UNDERLINE_THICKNESS
, &lineWidth
))
312 else if (lineWidth
== 1) lineWidth
= 0;
313 TSXSetLineAttributes( display
, dc
->u
.x
.gc
, lineWidth
,
314 LineSolid
, CapRound
, JoinBevel
);
315 TSXDrawLine( display
, dc
->u
.x
.drawable
, dc
->u
.x
.gc
,
316 dc
->w
.DCOrgX
+ x
, dc
->w
.DCOrgY
+ y
+ linePos
,
317 dc
->w
.DCOrgX
+ x
+ width
, dc
->w
.DCOrgY
+ y
+ linePos
);
321 long lineAscent
, lineDescent
;
322 if (!TSXGetFontProperty( font
, XA_STRIKEOUT_ASCENT
, &lineAscent
))
323 lineAscent
= ascent
/ 2;
324 if (!TSXGetFontProperty( font
, XA_STRIKEOUT_DESCENT
, &lineDescent
))
325 lineDescent
= -lineAscent
* 2 / 3;
326 TSXSetLineAttributes( display
, dc
->u
.x
.gc
, lineAscent
+ lineDescent
,
327 LineSolid
, CapRound
, JoinBevel
);
328 TSXDrawLine( display
, dc
->u
.x
.drawable
, dc
->u
.x
.gc
,
329 dc
->w
.DCOrgX
+ x
, dc
->w
.DCOrgY
+ y
- lineAscent
,
330 dc
->w
.DCOrgX
+ x
+ width
, dc
->w
.DCOrgY
+ y
- lineAscent
);
333 if (flags
& ETO_CLIPPED
)
335 SelectClipRgn32( dc
->hSelf
, hRgnClip
);
336 DeleteObject32( hRgnClip
);