1 /*
2 * X11 graphics driver text functions
3 *
4 * Copyright 1993,1994 Alexandre Julliard
5 *
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.
10 *
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.
15 *
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
19 */
20
21 #include "config.h"
22
23 #include <stdarg.h>
24 #include <stdlib.h>
25 #include <math.h>
26
27 #include "windef.h"
28 #include "winbase.h"
29 #include "x11font.h"
30 #include "wine/debug.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(text);
33
34 #define IROUND(x) (int)((x)>0? (x)+0.5 : (x) - 0.5)
35
36
37 /***********************************************************************
38 * X11DRV_ExtTextOut
39 */
40 BOOL X11DRV_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags,
41 const RECT *lprect, LPCWSTR wstr, UINT count, const INT *lpDx )
42 {
43 X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
44 BOOL restore_region = FALSE;
45 unsigned int i;
46 fontObject* pfo = XFONT_GetFontObject( physDev->font );
47 XFontStruct* font;
48 BOOL rotated = FALSE;
49 XChar2b *str2b = NULL;
50 BOOL dibUpdateFlag = FALSE;
51 BOOL result = TRUE;
52
53 if (!pfo)
54 {
55 dev = GET_NEXT_PHYSDEV( dev, pExtTextOut );
56 return dev->funcs->pExtTextOut( dev, x, y, flags, lprect, wstr, count, lpDx );
57 }
58
59 if (!X11DRV_SetupGCForText( physDev )) return TRUE;
60
61 font = pfo->fs;
62
63 if (pfo->lf.lfEscapement && pfo->lpX11Trans)
64 rotated = TRUE;
65
66 TRACE("hdc=%p df=%04x %d,%d rc %s %s, %d flags=%d lpDx=%p\n",
67 dev->hdc, (UINT16)physDev->font, x, y, wine_dbgstr_rect(lprect),
68 debugstr_wn (wstr, count), count, flags, lpDx);
69
70 /* Draw the rectangle */
71
72 if (flags & ETO_OPAQUE)
73 {
74 X11DRV_LockDIBSection( physDev, DIB_Status_GdiMod );
75 dibUpdateFlag = TRUE;
76 wine_tsx11_lock();
77 XSetForeground( gdi_display, physDev->gc, physDev->backgroundPixel );
78 XFillRectangle( gdi_display, physDev->drawable, physDev->gc,
79 physDev->dc_rect.left + lprect->left, physDev->dc_rect.top + lprect->top,
80 lprect->right - lprect->left, lprect->bottom - lprect->top );
81 wine_tsx11_unlock();
82 }
83 if (!count) goto END; /* Nothing more to do */
84
85
86 /* Set the clip region */
87
88 if (flags & ETO_CLIPPED)
89 {
90 HRGN clip_region = CreateRectRgnIndirect( lprect );
91 restore_region = add_extra_clipping_region( physDev, clip_region );
92 DeleteObject( clip_region );
93 }
94
95 /* Draw the text background if necessary */
96
97 if (!dibUpdateFlag)
98 {
99 X11DRV_LockDIBSection( physDev, DIB_Status_GdiMod );
100 dibUpdateFlag = TRUE;
101 }
102
103
104 /* Draw the text (count > 0 verified) */
105 if (!(str2b = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, wstr, count )))
106 {
107 result = FALSE;
108 goto END;
109 }
110
111 wine_tsx11_lock();
112 XSetForeground( gdi_display, physDev->gc, physDev->textPixel );
113 wine_tsx11_unlock();
114 if(!rotated)
115 {
116 if (!lpDx)
117 {
118 X11DRV_cptable[pfo->fi->cptable].pDrawString(
119 pfo, gdi_display, physDev->drawable, physDev->gc,
120 physDev->dc_rect.left + x, physDev->dc_rect.top + y, str2b, count );
121 }
122 else
123 {
124 XTextItem16 *items;
125
126 items = HeapAlloc( GetProcessHeap(), 0, count * sizeof(XTextItem16) );
127 if(items == NULL)
128 {
129 result = FALSE;
130 goto END;
131 }
132 items[0].chars = str2b;
133 items[0].delta = 0;
134 items[0].nchars = 1;
135 items[0].font = None;
136 for(i = 1; i < count; i++)
137 {
138 items[i].chars = str2b + i;
139 items[i].delta = (flags & ETO_PDY) ? lpDx[(i - 1) * 2] : lpDx[i - 1];
140 items[i].delta -= X11DRV_cptable[pfo->fi->cptable].pTextWidth( pfo, str2b + i - 1, 1 );
141 items[i].nchars = 1;
142 items[i].font = None;
143 }
144 X11DRV_cptable[pfo->fi->cptable].pDrawText( pfo, gdi_display,
145 physDev->drawable, physDev->gc,
146 physDev->dc_rect.left + x, physDev->dc_rect.top + y, items, count );
147 HeapFree( GetProcessHeap(), 0, items );
148 }
149 }
150 else /* rotated */
151 {
152 /* have to render character by character. */
153 double offset = 0.0;
154 UINT i;
155
156 for (i=0; i<count; i++)
157 {
158 int char_metric_offset = str2b[i].byte2 + (str2b[i].byte1 << 8)
159 - font->min_char_or_byte2;
160 int x_i = IROUND((double) (physDev->dc_rect.left + x) + offset *
161 pfo->lpX11Trans->a / pfo->lpX11Trans->pixelsize );
162 int y_i = IROUND((double) (physDev->dc_rect.top + y) - offset *
163 pfo->lpX11Trans->b / pfo->lpX11Trans->pixelsize );
164
165 X11DRV_cptable[pfo->fi->cptable].pDrawString(
166 pfo, gdi_display, physDev->drawable, physDev->gc,
167 x_i, y_i, &str2b[i], 1);
168 if (lpDx)
169 {
170 offset += (flags & ETO_PDY) ? lpDx[i * 2] : lpDx[i];
171 }
172 else
173 {
174 offset += (double) (font->per_char ?
175 font->per_char[char_metric_offset].attributes:
176 font->min_bounds.attributes)
177 * pfo->lpX11Trans->pixelsize / 1000.0;
178 }
179 }
180 }
181
182 END:
183 HeapFree( GetProcessHeap(), 0, str2b );
184 if (dibUpdateFlag) X11DRV_UnlockDIBSection( physDev, TRUE );
185 if (restore_region) restore_clipping_region( physDev );
186 return result;
187 }
188
189
190 /***********************************************************************
191 * X11DRV_GetTextExtentExPoint
192 */
193 BOOL X11DRV_GetTextExtentExPoint( PHYSDEV dev, LPCWSTR str, INT count,
194 INT maxExt, LPINT lpnFit, LPINT alpDx, LPSIZE size )
195 {
196 X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
197 fontObject* pfo = XFONT_GetFontObject( physDev->font );
198
199 TRACE("%s %d\n", debugstr_wn(str,count), count);
200 if( pfo ) {
201 XChar2b *p = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, str, count );
202 if (!p) return FALSE;
203 if( !pfo->lpX11Trans ) {
204 int dir, ascent, descent;
205 int info_width;
206 X11DRV_cptable[pfo->fi->cptable].pTextExtents( pfo, p,
207 count, &dir, &ascent, &descent, &info_width,
208 maxExt, lpnFit, alpDx );
209
210 size->cx = info_width;
211 size->cy = pfo->fs->ascent + pfo->fs->descent;
212 } else {
213 INT i;
214 INT nfit = 0;
215 float x = 0.0, y = 0.0;
216 float scaled_x = 0.0, pixsize = pfo->lpX11Trans->pixelsize;
217 /* FIXME: Deal with *_char_or_byte2 != 0 situations */
218 for(i = 0; i < count; i++) {
219 x += pfo->fs->per_char ?
220 pfo->fs->per_char[p[i].byte2 - pfo->fs->min_char_or_byte2].attributes :
221 pfo->fs->min_bounds.attributes;
222 scaled_x = x * pixsize / 1000.0;
223 if (alpDx)
224 alpDx[i] = scaled_x;
225 if (scaled_x <= maxExt)
226 ++nfit;
227 }
228 y = pfo->lpX11Trans->RAW_ASCENT + pfo->lpX11Trans->RAW_DESCENT;
229 TRACE("x = %f y = %f\n", x, y);
230 size->cx = x * pfo->lpX11Trans->pixelsize / 1000.0;
231 size->cy = y * pfo->lpX11Trans->pixelsize / 1000.0;
232 if (lpnFit)
233 *lpnFit = nfit;
234 }
235 size->cx *= pfo->rescale;
236 size->cy *= pfo->rescale;
237 HeapFree( GetProcessHeap(), 0, p );
238 return TRUE;
239 }
240
241 dev = GET_NEXT_PHYSDEV( dev, pGetTextExtentExPoint );
242 return dev->funcs->pGetTextExtentExPoint( dev, str, count, maxExt, lpnFit, alpDx, size );
243 }
244
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