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
|
/* Keramik Style for KDE3, gradient routines..
Copyright (c) 2002 Malte Starostik <[email protected]>
(c) 2002 Maksim Orlovich <[email protected]>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
// $Id$
#include <tqpainter.h>
#include <tqrect.h>
#include <tqcolor.h>
#include "gradients.h"
#include "colorutil.h"
#include <tqimage.h>
#include <tqintcache.h>
#include <kimageeffect.h>
namespace
{
struct GradientCacheEntry
{
TQPixmap* m_pixmap;
TQRgb m_color;
bool m_menu;
int m_width;
int m_height;
GradientCacheEntry(int width, int height, const TQColor& color, bool menu):
m_pixmap(0), m_color(color.rgb()), m_menu(menu), m_width(width), m_height(height)
{}
int key()
{
return (int)m_menu ^ m_width ^ (m_height << 16) ^ ((m_color)<<8);
}
bool operator == (const GradientCacheEntry& other)
{
return ((m_width == other.m_width) &&
(m_height == other.m_height) &&
(m_menu == other.m_menu) &&
(m_color == other.m_color));
}
~GradientCacheEntry()
{
delete m_pixmap;
}
};
TQIntCache<GradientCacheEntry> cache(65636, 17);
}
using namespace Keramik;
void GradientPainter::releaseCache()
{
cache.clear();
}
void GradientPainter::renderGradient( TQPainter* p, const TQRect& r, TQColor c,
bool horizontal, bool menu, int px, int py,
int pwidth, int pheight)
{
int width = r.width(), height = r.height();
if (pwidth != -1) width = pwidth;
if (pheight != -1) height = pheight;
if (horizontal)
width = 18;
else
height = 18;
GradientCacheEntry entry (width, height, c, menu);
GradientCacheEntry* cacheEntry = 0;
cache.setAutoDelete(true);
int key = entry.key();
if ((cacheEntry = cache.find(key, false)))
{
if (entry == *cacheEntry)
{
p->drawTiledPixmap(r, *cacheEntry->m_pixmap, horizontal? TQPoint(0,py): TQPoint(px,0));
return;
}
else
cache.remove(key);
//Remove old entry in case of conflicts.. otherwise we end up w/unreachable items in cache
}
if (horizontal)
{
TQPixmap* pix = new TQPixmap(18, height);
if (menu)
{
TQImage gr = KImageEffect::gradient(TQSize(4,height), c.light(93), ColorUtil::lighten(c,109), KImageEffect::VerticalGradient );
TQPixmap grT(gr);
TQPainter p2(pix);
p2.drawTiledPixmap(0,0, 18, height, grT);
p2.end();
}
else
{
int h1 = 3 * height/4;
int h2 = height - h1;
TQImage top = KImageEffect::gradient(TQSize(4,h1), ColorUtil::lighten(c,110), c.light(94), KImageEffect::VerticalGradient );
TQImage bot = KImageEffect::gradient(TQSize(4,h2), c.light(94), ColorUtil::lighten(c,109), KImageEffect::VerticalGradient );
TQPixmap topT(top);
TQPixmap botT(bot);
TQPainter p2(pix);
p2.drawTiledPixmap(0, 0, 18, h1, topT);
p2.drawTiledPixmap(0, h1, 18, h2, botT);
p2.end();
}
entry.m_pixmap = pix;
}
else
{
TQPixmap* pix = new TQPixmap(width, 18);
int h1 = 3 * width/4;
int h2 = width - h1;
TQImage top = KImageEffect::gradient(TQSize(h1,4), ColorUtil::lighten(c,110), c.light(94), KImageEffect::HorizontalGradient );
TQImage bot = KImageEffect::gradient(TQSize(h2,4), c.light(94), ColorUtil::lighten(c,109), KImageEffect::HorizontalGradient );
TQPixmap topT(top);
TQPixmap botT(bot);
TQPainter p2(pix);
p2.drawTiledPixmap(0, 0, h1, 18, topT);
p2.drawTiledPixmap(h1, 0, h2, 18, botT);
p2.end();
entry.m_pixmap = pix;
}
bool cacheOK = false;
GradientCacheEntry* imgToAdd = new GradientCacheEntry(entry);
cacheOK = cache.insert(imgToAdd->key(), imgToAdd,
imgToAdd->m_pixmap->width() * imgToAdd->m_pixmap->height()*
imgToAdd->m_pixmap->depth()/8);
p->drawTiledPixmap(r, *imgToAdd->m_pixmap, horizontal? TQPoint(0,py): TQPoint(px,0));
if (!cacheOK)
delete imgToAdd;
entry.m_pixmap = 0;//Don't free too early..
}
|
