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
|
/* This file is part of the KDE libraries
Copyright (C) 1998, 1999 Christian Tibirna <[email protected]>
(C) 1998, 1999 Daniel M. Duley <[email protected]>
(C) 1998, 1999 Dirk A. Mueller <[email protected]>
*/
// $Id$
#include <tqimage.h>
#include <tqpainter.h>
#include "kpixmapeffect.h"
#include "kpixmap.h"
#include "kimageeffect.h"
//======================================================================
//
// Gradient effects
//
//======================================================================
KPixmap& KPixmapEffect::gradient(KPixmap &pixmap, const TQColor &ca,
const TQColor &cb, GradientType eff, int ncols)
{
if(pixmap.depth() > 8 &&
(eff == VerticalGradient || eff == HorizontalGradient)) {
int rDiff, gDiff, bDiff;
int rca, gca, bca /*, rcb, gcb, bcb*/;
int x, y;
rDiff = (/*rcb = */ cb.red()) - (rca = ca.red());
gDiff = (/*gcb = */ cb.green()) - (gca = ca.green());
bDiff = (/*bcb = */ cb.blue()) - (bca = ca.blue());
int rl = rca << 16;
int gl = gca << 16;
int bl = bca << 16;
int rcdelta = ((1<<16) / (eff == VerticalGradient ? pixmap.height() : pixmap.width())) * rDiff;
int gcdelta = ((1<<16) / (eff == VerticalGradient ? pixmap.height() : pixmap.width())) * gDiff;
int bcdelta = ((1<<16) / (eff == VerticalGradient ? pixmap.height() : pixmap.width())) * bDiff;
TQPainter p(&pixmap);
// these for-loops could be merged, but the if's in the inner loop
// would make it slow
switch(eff) {
case VerticalGradient:
for ( y = 0; y < pixmap.height(); y++ ) {
rl += rcdelta;
gl += gcdelta;
bl += bcdelta;
p.setPen(TQColor(rl>>16, gl>>16, bl>>16));
p.drawLine(0, y, pixmap.width()-1, y);
}
break;
case HorizontalGradient:
for( x = 0; x < pixmap.width(); x++) {
rl += rcdelta;
gl += gcdelta;
bl += bcdelta;
p.setPen(TQColor(rl>>16, gl>>16, bl>>16));
p.drawLine(x, 0, x, pixmap.height()-1);
}
break;
default:
;
}
}
else {
TQImage image = KImageEffect::gradient(pixmap.size(), ca, cb,
(KImageEffect::GradientType) eff, ncols);
pixmap.convertFromImage(image);
}
return pixmap;
}
// -----------------------------------------------------------------------------
KPixmap& KPixmapEffect::unbalancedGradient(KPixmap &pixmap, const TQColor &ca,
const TQColor &cb, GradientType eff, int xfactor, int yfactor,
int ncols)
{
TQImage image = KImageEffect::unbalancedGradient(pixmap.size(), ca, cb,
(KImageEffect::GradientType) eff,
xfactor, yfactor, ncols);
pixmap.convertFromImage(image);
return pixmap;
}
//======================================================================
//
// Intensity effects
//
//======================================================================
KPixmap& KPixmapEffect::intensity(KPixmap &pixmap, float percent)
{
TQImage image = pixmap.convertToImage();
KImageEffect::intensity(image, percent);
pixmap.convertFromImage(image);
return pixmap;
}
// -----------------------------------------------------------------------------
KPixmap& KPixmapEffect::channelIntensity(KPixmap &pixmap, float percent,
RGBComponent channel)
{
TQImage image = pixmap.convertToImage();
KImageEffect::channelIntensity(image, percent,
(KImageEffect::RGBComponent) channel);
pixmap.convertFromImage(image);
return pixmap;
}
//======================================================================
//
// Blend effects
//
//======================================================================
KPixmap& KPixmapEffect::blend(KPixmap &pixmap, float initial_intensity,
const TQColor &bgnd, GradientType eff,
bool anti_dir, int ncols)
{
TQImage image = pixmap.convertToImage();
if (image.depth() <=8)
image = image.convertDepth(32); //Sloww..
KImageEffect::blend(image, initial_intensity, bgnd,
(KImageEffect::GradientType) eff, anti_dir);
unsigned int tmp;
if(pixmap.depth() <= 8 ) {
if ( ncols < 2 || ncols > 256 )
ncols = 3;
TQColor *dPal = new TQColor[ncols];
for (int i=0; i<ncols; i++) {
tmp = 0 + 255 * i / ( ncols - 1 );
dPal[i].setRgb ( tmp, tmp, tmp );
}
KImageEffect::dither(image, dPal, ncols);
pixmap.convertFromImage(image);
delete [] dPal;
}
else
pixmap.convertFromImage(image);
return pixmap;
}
//======================================================================
//
// Hash effects
//
//======================================================================
KPixmap& KPixmapEffect::hash(KPixmap &pixmap, Lighting lite,
unsigned int spacing, int ncols)
{
TQImage image = pixmap.convertToImage();
KImageEffect::hash(image, (KImageEffect::Lighting) lite, spacing);
unsigned int tmp;
if(pixmap.depth() <= 8 ) {
if ( ncols < 2 || ncols > 256 )
ncols = 3;
TQColor *dPal = new TQColor[ncols];
for (int i=0; i<ncols; i++) {
tmp = 0 + 255 * i / ( ncols - 1 );
dPal[i].setRgb ( tmp, tmp, tmp );
}
KImageEffect::dither(image, dPal, ncols);
pixmap.convertFromImage(image);
delete [] dPal;
}
else
pixmap.convertFromImage(image);
return pixmap;
}
//======================================================================
//
// Pattern effects
//
//======================================================================
#if 0
void KPixmapEffect::pattern(KPixmap &pixmap, const TQColor &ca,
const TQColor &cb, unsigned pat[8])
{
TQImage img = pattern(pixmap.size(), ca, cb, pat);
pixmap.convertFromImage(img);
}
#endif
// -----------------------------------------------------------------------------
KPixmap KPixmapEffect::pattern(const KPixmap& pmtile, TQSize size,
const TQColor &ca, const TQColor &cb, int ncols)
{
if (pmtile.depth() > 8)
ncols = 0;
TQImage img = pmtile.convertToImage();
KImageEffect::flatten(img, ca, cb, ncols);
KPixmap pixmap;
pixmap.convertFromImage(img);
return KPixmapEffect::createTiled(pixmap, size);
}
// -----------------------------------------------------------------------------
KPixmap KPixmapEffect::createTiled(const KPixmap& pixmap, TQSize size)
{
KPixmap pix(size);
TQPainter p(&pix);
p.drawTiledPixmap(0, 0, size.width(), size.height(), pixmap);
return pix;
}
//======================================================================
//
// Fade effects
//
//======================================================================
KPixmap& KPixmapEffect::fade(KPixmap &pixmap, double val, const TQColor &color)
{
TQImage img = pixmap.convertToImage();
KImageEffect::fade(img, val, color);
pixmap.convertFromImage(img);
return pixmap;
}
// -----------------------------------------------------------------------------
KPixmap& KPixmapEffect::toGray(KPixmap &pixmap, bool fast)
{
TQImage img = pixmap.convertToImage();
KImageEffect::toGray(img, fast);
pixmap.convertFromImage(img);
return pixmap;
}
// -----------------------------------------------------------------------------
KPixmap& KPixmapEffect::desaturate(KPixmap &pixmap, float desat)
{
TQImage img = pixmap.convertToImage();
KImageEffect::desaturate(img, desat);
pixmap.convertFromImage(img);
return pixmap;
}
// -----------------------------------------------------------------------------
KPixmap& KPixmapEffect::contrast(KPixmap &pixmap, int c)
{
TQImage img = pixmap.convertToImage();
KImageEffect::contrast(img, c);
pixmap.convertFromImage(img);
return pixmap;
}
//======================================================================
//
// Dither effects
//
//======================================================================
// -----------------------------------------------------------------------------
KPixmap& KPixmapEffect::dither(KPixmap &pixmap, const TQColor *palette, int size)
{
TQImage img = pixmap.convertToImage();
KImageEffect::dither(img, palette, size);
pixmap.convertFromImage(img);
return pixmap;
}
//======================================================================
//
// Other effects
//
//======================================================================
KPixmap KPixmapEffect::selectedPixmap( const KPixmap &pix, const TQColor &col )
{
TQImage img = pix.convertToImage();
KImageEffect::selectedImage(img, col);
KPixmap outPix;
outPix.convertFromImage(img);
return outPix;
}
|