msxml3: Properly escape character data in text nodes.
[wine/multimedia.git] / dlls / winex11.drv / text.c
blob22a6353a3b9ed568308a6387759b1b569de92d43
1 /*
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "config.h"
23 #include <stdarg.h>
24 #include <stdlib.h>
25 #include <math.h>
27 #include "windef.h"
28 #include "winbase.h"
29 #include "x11font.h"
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(text);
34 #define IROUND(x) (int)((x)>0? (x)+0.5 : (x) - 0.5)
37 /***********************************************************************
38 * X11DRV_ExtTextOut
40 BOOL X11DRV_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags,
41 const RECT *lprect, LPCWSTR wstr, UINT count, const INT *lpDx )
43 X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
44 BOOL restore_region = FALSE;
45 unsigned int i;
46 int pixel;
47 fontObject* pfo = XFONT_GetFontObject( physDev->font );
48 XFontStruct* font;
49 BOOL rotated = FALSE;
50 XChar2b *str2b = NULL;
51 BOOL result = TRUE;
53 if (!pfo)
55 dev = GET_NEXT_PHYSDEV( dev, pExtTextOut );
56 return dev->funcs->pExtTextOut( dev, x, y, flags, lprect, wstr, count, lpDx );
59 if (!X11DRV_SetupGCForText( physDev )) return TRUE;
61 font = pfo->fs;
63 if (pfo->lf.lfEscapement && pfo->lpX11Trans)
64 rotated = TRUE;
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);
70 /* Draw the rectangle */
72 if (flags & ETO_OPAQUE)
74 pixel = X11DRV_PALETTE_ToPhysical( physDev, GetBkColor(physDev->dev.hdc) );
75 wine_tsx11_lock();
76 XSetForeground( gdi_display, physDev->gc, pixel );
77 XFillRectangle( gdi_display, physDev->drawable, physDev->gc,
78 physDev->dc_rect.left + lprect->left, physDev->dc_rect.top + lprect->top,
79 lprect->right - lprect->left, lprect->bottom - lprect->top );
80 wine_tsx11_unlock();
82 if (!count) goto END; /* Nothing more to do */
85 /* Set the clip region */
87 if (flags & ETO_CLIPPED)
89 HRGN clip_region = CreateRectRgnIndirect( lprect );
90 restore_region = add_extra_clipping_region( physDev, clip_region );
91 DeleteObject( clip_region );
95 /* Draw the text (count > 0 verified) */
96 if (!(str2b = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, wstr, count )))
98 result = FALSE;
99 goto END;
102 pixel = X11DRV_PALETTE_ToPhysical( physDev, GetTextColor(physDev->dev.hdc) );
103 wine_tsx11_lock();
104 XSetForeground( gdi_display, physDev->gc, pixel );
105 wine_tsx11_unlock();
106 if(!rotated)
108 if (!lpDx)
110 X11DRV_cptable[pfo->fi->cptable].pDrawString(
111 pfo, gdi_display, physDev->drawable, physDev->gc,
112 physDev->dc_rect.left + x, physDev->dc_rect.top + y, str2b, count );
114 else
116 XTextItem16 *items;
118 items = HeapAlloc( GetProcessHeap(), 0, count * sizeof(XTextItem16) );
119 if(items == NULL)
121 result = FALSE;
122 goto END;
124 items[0].chars = str2b;
125 items[0].delta = 0;
126 items[0].nchars = 1;
127 items[0].font = None;
128 for(i = 1; i < count; i++)
130 items[i].chars = str2b + i;
131 items[i].delta = (flags & ETO_PDY) ? lpDx[(i - 1) * 2] : lpDx[i - 1];
132 items[i].delta -= X11DRV_cptable[pfo->fi->cptable].pTextWidth( pfo, str2b + i - 1, 1 );
133 items[i].nchars = 1;
134 items[i].font = None;
136 X11DRV_cptable[pfo->fi->cptable].pDrawText( pfo, gdi_display,
137 physDev->drawable, physDev->gc,
138 physDev->dc_rect.left + x, physDev->dc_rect.top + y, items, count );
139 HeapFree( GetProcessHeap(), 0, items );
142 else /* rotated */
144 /* have to render character by character. */
145 double offset = 0.0;
146 UINT i;
148 for (i=0; i<count; i++)
150 int char_metric_offset = str2b[i].byte2 + (str2b[i].byte1 << 8)
151 - font->min_char_or_byte2;
152 int x_i = IROUND((double) (physDev->dc_rect.left + x) + offset *
153 pfo->lpX11Trans->a / pfo->lpX11Trans->pixelsize );
154 int y_i = IROUND((double) (physDev->dc_rect.top + y) - offset *
155 pfo->lpX11Trans->b / pfo->lpX11Trans->pixelsize );
157 X11DRV_cptable[pfo->fi->cptable].pDrawString(
158 pfo, gdi_display, physDev->drawable, physDev->gc,
159 x_i, y_i, &str2b[i], 1);
160 if (lpDx)
162 offset += (flags & ETO_PDY) ? lpDx[i * 2] : lpDx[i];
164 else
166 offset += (double) (font->per_char ?
167 font->per_char[char_metric_offset].attributes:
168 font->min_bounds.attributes)
169 * pfo->lpX11Trans->pixelsize / 1000.0;
174 END:
175 HeapFree( GetProcessHeap(), 0, str2b );
176 if (restore_region) restore_clipping_region( physDev );
177 return result;
181 /***********************************************************************
182 * X11DRV_GetTextExtentExPoint
184 BOOL X11DRV_GetTextExtentExPoint( PHYSDEV dev, LPCWSTR str, INT count,
185 INT maxExt, LPINT lpnFit, LPINT alpDx, LPSIZE size )
187 X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
188 fontObject* pfo = XFONT_GetFontObject( physDev->font );
190 TRACE("%s %d\n", debugstr_wn(str,count), count);
191 if( pfo ) {
192 XChar2b *p = X11DRV_cptable[pfo->fi->cptable].punicode_to_char2b( pfo, str, count );
193 if (!p) return FALSE;
194 if( !pfo->lpX11Trans ) {
195 int dir, ascent, descent;
196 int info_width;
197 X11DRV_cptable[pfo->fi->cptable].pTextExtents( pfo, p,
198 count, &dir, &ascent, &descent, &info_width,
199 maxExt, lpnFit, alpDx );
201 size->cx = info_width;
202 size->cy = pfo->fs->ascent + pfo->fs->descent;
203 } else {
204 INT i;
205 INT nfit = 0;
206 float x = 0.0, y = 0.0;
207 float scaled_x = 0.0, pixsize = pfo->lpX11Trans->pixelsize;
208 /* FIXME: Deal with *_char_or_byte2 != 0 situations */
209 for(i = 0; i < count; i++) {
210 x += pfo->fs->per_char ?
211 pfo->fs->per_char[p[i].byte2 - pfo->fs->min_char_or_byte2].attributes :
212 pfo->fs->min_bounds.attributes;
213 scaled_x = x * pixsize / 1000.0;
214 if (alpDx)
215 alpDx[i] = scaled_x;
216 if (scaled_x <= maxExt)
217 ++nfit;
219 y = pfo->lpX11Trans->RAW_ASCENT + pfo->lpX11Trans->RAW_DESCENT;
220 TRACE("x = %f y = %f\n", x, y);
221 size->cx = x * pfo->lpX11Trans->pixelsize / 1000.0;
222 size->cy = y * pfo->lpX11Trans->pixelsize / 1000.0;
223 if (lpnFit)
224 *lpnFit = nfit;
226 size->cx *= pfo->rescale;
227 size->cy *= pfo->rescale;
228 HeapFree( GetProcessHeap(), 0, p );
229 return TRUE;
232 dev = GET_NEXT_PHYSDEV( dev, pGetTextExtentExPoint );
233 return dev->funcs->pGetTextExtentExPoint( dev, str, count, maxExt, lpnFit, alpDx, size );