1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
|
/* This file is based on qt-3.3.2/src/qimage.cpp , plus it includes
* a fix from qt-bugs@ issue #49934. Original copyright follows.
*/
/****************************************************************************
**
**
** Implementation of TQImage and TQImageIO classes
**
** Created : 950207
**
** Copyright (C) 1992-2003 Trolltech AS. All rights reserved.
**
** This file is part of the kernel module of the TQt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.TQPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid TQt Enterprise Edition or TQt Professional Edition
** licenses may use this file in accordance with the TQt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about TQt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for TQPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
/*
This code is xpm loader copied from qimage.cpp, with changes making it
possible to use this class from another thread. The problem is that
TQColor::setNamedColor() isn't reentrant without thread-safe Xlib,
i.e. without XInitThreads() called. Current KDE applications
don't call XInitThreads(), and since it needs to be the very first
Xlib function called, and Gwenview is also a KPart, it's not possible
to rely on Xlib being thread-safe.
Changes are marked using #ifdef GV_XPM_CHANGES.
*/
#define GV_XPM_CHANGES
#include "xpm.h"
#include <tqimage.h>
#include <tqmap.h>
#include <tqregexp.h>
#include "threadgate.h"
namespace Gwenview {
// TQt code start ---------------------------
static TQString fbname( const TQString &fileName ) // get file basename (sort of)
{
TQString s = fileName;
if ( !s.isEmpty() ) {
int i;
if ( (i = s.tqfindRev('/')) >= 0 )
s = s.mid( i );
if ( (i = s.tqfindRev('\\')) >= 0 )
s = s.mid( i );
TQRegExp r( TQString::tqfromLatin1("[a-zA-Z][a-zA-Z0-9_]*") );
int p = r.search( s );
if ( p == -1 )
s.truncate( 0 );
else
s = s.mid( p, r.matchedLength() );
}
if ( s.isEmpty() )
s = TQString::tqfromLatin1( "dummy" );
return s;
}
/*****************************************************************************
XPM image read/write functions
*****************************************************************************/
// Skip until ", read until the next ", return the rest in *buf
// Returns FALSE on error, TRUE on success
static bool read_xpm_string( TQCString &buf, TQIODevice *d,
const char * const *source, int &index )
{
if ( source ) {
buf = source[index++];
return TRUE;
}
if ( buf.size() < 69 ) //# just an approximation
buf.resize( 123 );
buf[0] = '\0';
int c;
int i;
while ( (c=d->getch()) != EOF && c != '"' ) { }
if ( c == EOF ) {
return FALSE;
}
i = 0;
while ( (c=d->getch()) != EOF && c != '"' ) {
if ( i == (int)buf.size() )
buf.resize( i*2+42 );
buf[i++] = c;
}
if ( c == EOF ) {
return FALSE;
}
if ( i == (int)buf.size() ) // always use a 0 terminator
buf.resize( i+1 );
buf[i] = '\0';
return TRUE;
}
static int nextColorSpec(const TQCString & buf)
{
int i = buf.tqfind(" c ");
if (i < 0)
i = buf.tqfind(" g ");
if (i < 0)
i = buf.tqfind(" g4 ");
if (i < 0)
i = buf.tqfind(" m ");
if (i < 0)
i = buf.tqfind(" s ");
return i;
}
//
// INTERNAL
//
// Reads an .xpm from either the TQImageIO or from the TQString *.
// One of the two HAS to be 0, the other one is used.
//
static void read_xpm_image_or_array( TQImageIO * iio, const char * const * source,
TQImage & image)
{
TQCString buf;
TQIODevice *d = 0;
buf.resize( 200 );
int i, cpp, ncols, w, h, index = 0;
if ( iio ) {
iio->setqStatus( 1 );
d = iio ? iio->ioDevice() : 0;
d->readLine( buf.data(), buf.size() ); // "/* XPM */"
TQRegExp r( TQString::tqfromLatin1("/\\*.XPM.\\*/") );
if ( buf.tqfind(r) == -1 )
return; // bad magic
} else if ( !source ) {
return;
}
if ( !read_xpm_string( buf, d, source, index ) )
return;
if ( sscanf( buf, "%d %d %d %d", &w, &h, &ncols, &cpp ) < 4 )
return; // < 4 numbers parsed
if ( cpp > 15 )
return;
if ( ncols > 256 ) {
image.create( w, h, 32 );
} else {
image.create( w, h, 8, ncols );
}
if (image.isNull())
return;
TQMap<TQString, int> colorMap;
int currentColor;
for( currentColor=0; currentColor < ncols; ++currentColor ) {
if ( !read_xpm_string( buf, d, source, index ) ) {
#if defined(TQT_CHECK_RANGE)
qWarning( "TQImage: XPM color specification missing");
#endif
return;
}
TQString index;
index = buf.left( cpp );
buf = buf.mid( cpp ).simplifyWhiteSpace().lower();
buf.prepend( " " );
i = nextColorSpec(buf);
if ( i < 0 ) {
#if defined(TQT_CHECK_RANGE)
qWarning( "TQImage: XPM color specification is missing: %s", buf.data());
#endif
return; // no c/g/g4/m/s specification at all
}
buf = buf.mid( i+3 );
// Strip any other colorspec
int end = nextColorSpec(buf);
if (end != -1)
buf.truncate(end);
buf = buf.stripWhiteSpace();
if ( buf == "none" ) {
image.setAlphaBuffer( TRUE );
int transparentColor = currentColor;
if ( image.depth() == 8 ) {
image.setColor( transparentColor,
TQRGB_MASK & tqRgb(198,198,198) );
colorMap.insert( index, transparentColor );
} else {
TQRgb rgb = TQRGB_MASK & tqRgb(198,198,198);
colorMap.insert( index, rgb );
}
} else {
if ( ((buf.length()-1) % 3) && (buf[0] == '#') ) {
buf.truncate (((buf.length()-1) / 4 * 3) + 1); // remove alpha channel left by imagemagick
}
#ifdef GV_XPM_CHANGES
TQColor c = ThreadGate::instance()->color( buf.data());
#else
TQColor c( buf.data() );
#endif
if ( image.depth() == 8 ) {
image.setColor( currentColor, 0xff000000 | c.rgb() );
colorMap.insert( index, currentColor );
} else {
TQRgb rgb = 0xff000000 | c.rgb();
colorMap.insert( index, rgb );
}
}
}
// Read pixels
for( int y=0; y<h; y++ ) {
if ( !read_xpm_string( buf, d, source, index ) ) {
#if defined(TQT_CHECK_RANGE)
qWarning( "TQImage: XPM pixels missing on image line %d", y);
#endif
return;
}
if ( image.depth() == 8 ) {
uchar *p = image.scanLine(y);
uchar *d = (uchar *)buf.data();
uchar *end = d + buf.length();
int x;
if ( cpp == 1 ) {
char b[2];
b[1] = '\0';
for ( x=0; x<w && d<end; x++ ) {
b[0] = *d++;
*p++ = (uchar)colorMap[b];
}
} else {
char b[16];
b[cpp] = '\0';
for ( x=0; x<w && d<end; x++ ) {
strncpy( b, (char *)d, cpp );
*p++ = (uchar)colorMap[b];
d += cpp;
}
}
} else {
TQRgb *p = (TQRgb*)image.scanLine(y);
uchar *d = (uchar *)buf.data();
uchar *end = d + buf.length();
int x;
char b[16];
b[cpp] = '\0';
for ( x=0; x<w && d<end; x++ ) {
strncpy( b, (char *)d, cpp );
*p++ = (TQRgb)colorMap[b];
d += cpp;
}
}
}
if ( iio ) {
iio->setImage( image );
iio->setqStatus( 0 ); // image ok
}
}
static void read_xpm_image( TQImageIO * iio )
{
TQImage i;
(void)read_xpm_image_or_array( iio, 0, i );
return;
}
static const char* xpm_color_name( int cpp, int index )
{
static char returnable[5];
static const char code[] = ".#abcdefghijklmnopqrstuvwxyzABCD"
"EFGHIJKLMNOPTQRSTUVWXYZ0123456789";
// cpp is limited to 4 and index is limited to 64^cpp
if ( cpp > 1 ) {
if ( cpp > 2 ) {
if ( cpp > 3 ) {
returnable[3] = code[index % 64];
index /= 64;
} else
returnable[3] = '\0';
returnable[2] = code[index % 64];
index /= 64;
} else
returnable[2] = '\0';
// the following 4 lines are a joke!
if ( index == 0 )
index = 64*44+21;
else if ( index == 64*44+21 )
index = 0;
returnable[1] = code[index % 64];
index /= 64;
} else
returnable[1] = '\0';
returnable[0] = code[index];
return returnable;
}
// write XPM image data
static void write_xpm_image( TQImageIO * iio )
{
if ( iio )
iio->setqStatus( 1 );
else
return;
// ### 8-bit case could be made faster
TQImage image;
if ( iio->image().depth() != 32 )
image = iio->image().convertDepth( 32 );
else
image = iio->image();
TQMap<TQRgb, int> colorMap;
int w = image.width(), h = image.height(), ncolors = 0;
int x, y;
// build color table
for( y=0; y<h; y++ ) {
TQRgb * yp = (TQRgb *)image.scanLine( y );
for( x=0; x<w; x++ ) {
TQRgb color = *(yp + x);
if ( !colorMap.tqcontains(color) )
colorMap.insert( color, ncolors++ );
}
}
// number of 64-bit characters per pixel needed to encode all colors
int cpp = 1;
for ( int k = 64; ncolors > k; k *= 64 ) {
++cpp;
// limit to 4 characters per pixel
// 64^4 colors is enough for a 4096x4096 image
if ( cpp > 4)
break;
}
TQString line;
// write header
TQTextStream s( iio->ioDevice() );
s << "/* XPM */" << endl
<< "static char *" << fbname(iio->fileName()) << "[]={" << endl
<< "\"" << w << " " << h << " " << ncolors << " " << cpp << "\"";
// write palette
TQMap<TQRgb, int>::Iterator c = colorMap.begin();
while ( c != colorMap.end() ) {
TQRgb color = c.key();
if ( image.hasAlphaBuffer() && color == (color & TQRGB_MASK) )
line.sprintf( "\"%s c None\"",
xpm_color_name(cpp, *c) );
else
line.sprintf( "\"%s c #%02x%02x%02x\"",
xpm_color_name(cpp, *c),
tqRed(color),
tqGreen(color),
tqBlue(color) );
++c;
s << "," << endl << line;
}
// write pixels, limit to 4 characters per pixel
line.truncate( cpp*w );
for( y=0; y<h; y++ ) {
TQRgb * yp = (TQRgb *) image.scanLine( y );
int cc = 0;
for( x=0; x<w; x++ ) {
int color = (int)(*(yp + x));
TQCString chars = xpm_color_name( cpp, colorMap[color] );
line[cc++] = chars[0];
if ( cpp > 1 ) {
line[cc++] = chars[1];
if ( cpp > 2 ) {
line[cc++] = chars[2];
if ( cpp > 3 ) {
line[cc++] = chars[3];
}
}
}
}
s << "," << endl << "\"" << line << "\"";
}
s << "};" << endl;
iio->setqStatus( 0 );
}
// TQt code end ---------------------------
XPM::XPM()
{
TQImageIO::inputFormats(); // trigger registration of TQt's handlers
TQImageIO::defineIOHandler( "XPM", "/\\*.XPM.\\*/", "T",
read_xpm_image, write_xpm_image );
}
} // namespace
|