summaryrefslogtreecommitdiffstats
path: root/kdm/kfrontend/themer/kdmpixmap.cpp
blob: 337c19cedb91288b911e63e94cfc2ff97d81c9fc (plain)
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
/*
 *  Copyright (C) 2003 by Unai Garro <ugarro@users.sourceforge.net>
 *  Copyright (C) 2004 by Enrico Ros <rosenric@dei.unipd.it>
 *  Copyright (C) 2004 by Stephan Kulow <coolo@kde.org>
 *  Copyright (C) 2004 by Oswald Buddenhagen <ossi@kde.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include <config.h>

#include "kdmpixmap.h"

#include <kimageeffect.h>
#ifdef HAVE_LIBART
#include <ksvgiconengine.h>
#endif

#include <kdebug.h>

#include <qpainter.h>
#include <qpixmap.h>
#include <qimage.h>

KdmPixmap::KdmPixmap( KdmItem *parent, const QDomNode &node, const char *name )
    : KdmItem( parent, node, name )
{
	itemType = "pixmap";

	// Set default values for pixmap (note: strings are already Null)
	pixmap.normal.tint.setRgb( 0xFFFFFF );
	pixmap.normal.alpha = 1.0;
	pixmap.active.present = false;
	pixmap.prelight.present = false;

	// Read PIXMAP ID
	// it rarely happens that a pixmap can be a button too!
	QDomNode n = node;
	QDomElement elPix = n.toElement();

	// Read PIXMAP TAGS
	QDomNodeList childList = node.childNodes();
	for (uint nod = 0; nod < childList.count(); nod++) {
		QDomNode child = childList.item( nod );
		QDomElement el = child.toElement();
		QString tagName = el.tagName();

		if (tagName == "normal") {
			loadPixmap( el.attribute( "file", "" ), pixmap.normal.pixmap, pixmap.normal.fullpath );
			parseColor( el.attribute( "tint", "#ffffff" ), pixmap.normal.tint );
			pixmap.normal.alpha = el.attribute( "alpha", "1.0" ).toFloat();
		} else if (tagName == "active") {
			pixmap.active.present = true;
			loadPixmap( el.attribute( "file", "" ), pixmap.active.pixmap, pixmap.active.fullpath );
			parseColor( el.attribute( "tint", "#ffffff" ), pixmap.active.tint );
			pixmap.active.alpha = el.attribute( "alpha", "1.0" ).toFloat();
		} else if (tagName == "prelight") {
			pixmap.prelight.present = true;
			loadPixmap( el.attribute( "file", "" ), pixmap.prelight.pixmap, pixmap.prelight.fullpath );
			parseColor( el.attribute( "tint", "#ffffff" ), pixmap.prelight.tint );
			pixmap.prelight.alpha = el.attribute( "alpha", "1.0" ).toFloat();
		}
	}
}

QSize
KdmPixmap::sizeHint()
{
	// choose the correct pixmap class
	PixmapStruct::PixmapClass * pClass = &pixmap.normal;
	if (state == Sactive && pixmap.active.present)
		pClass = &pixmap.active;
	if (state == Sprelight && pixmap.prelight.present)
		pClass = &pixmap.prelight;
	// use the pixmap size as the size hint
	if (!pClass->pixmap.isNull())
		return pClass->pixmap.size();
	return KdmItem::sizeHint();
}

void
KdmPixmap::setGeometry( const QRect &newGeometry, bool force )
{
	KdmItem::setGeometry( newGeometry, force );
	pixmap.active.readyPixmap.resize( 0, 0 );
	pixmap.prelight.readyPixmap.resize( 0, 0 );
	pixmap.normal.readyPixmap.resize( 0, 0 );
}


void
KdmPixmap::loadPixmap( const QString &fileName, QPixmap &map, QString &fullName )
{
	if (fileName.isEmpty())
		return;

	fullName = fileName;
	if (fullName.at( 0 ) != '/')
		fullName = baseDir() + "/" + fileName;

	if (!fullName.endsWith( ".svg" ))	// we delay it for svgs
		if (!map.load( fullName ))
			fullName = QString::null;
}

void
KdmPixmap::renderSvg( PixmapStruct::PixmapClass *pClass, const QRect &area )
{
#ifdef HAVE_LIBART
	// Special stuff for SVG icons
	KSVGIconEngine *svgEngine = new KSVGIconEngine();

	if (svgEngine->load( area.width(), area.height(), pClass->fullpath )) {
		QImage *t = svgEngine->image();
		pClass->pixmap = *t;
		pClass->readyPixmap.resize( 0, 0 );
		delete t;
	} else {
		kdWarning() << "failed to load " << pClass->fullpath << endl;
		pClass->fullpath = QString::null;
	}

	delete svgEngine;
#else
        Q_UNUSED(pClass);
        Q_UNUSED(area);
#endif
}

void
KdmPixmap::drawContents( QPainter *p, const QRect &r )
{
	// choose the correct pixmap class
	PixmapStruct::PixmapClass *pClass = &pixmap.normal;
	if (state == Sactive && pixmap.active.present)
		pClass = &pixmap.active;
	if (state == Sprelight && pixmap.prelight.present)
		pClass = &pixmap.prelight;

	if (pClass->pixmap.isNull()) {
		if (pClass->fullpath.isEmpty())	// if neither is set, we're empty
			return;

		kdDebug() << "renderSVG\n";
		renderSvg( pClass, area );
	}

	int px = area.left() + r.left();
	int py = area.top() + r.top();
	int sx = r.x();
	int sy = r.y();
	int sw = r.width();
	int sh = r.height();
	if (px < 0) {
		px *= -1;
		sx += px;
		px = 0;
	}
	if (py < 0) {
		py *= -1;
		sy += py;
		py = 0;
	}


	if (pClass->readyPixmap.isNull()) {
		QImage scaledImage;

		// use the loaded pixmap or a scaled version if needed

		if (area.size() != pClass->pixmap.size()) {
			if (pClass->fullpath.endsWith( ".svg" )) {
				kdDebug() << "renderSVG\n";
				renderSvg( pClass, area );
				scaledImage = pClass->pixmap.convertToImage();
			} else {
				kdDebug() << "convertFromImage\n";
				QImage tempImage = pClass->pixmap.convertToImage();
				scaledImage = tempImage.smoothScale( area.width(), area.height() );
			}
		} else
			scaledImage = pClass->pixmap.convertToImage();

		bool haveTint = pClass->tint.rgb() != 0xFFFFFF;
		bool haveAlpha = pClass->alpha < 1.0;

		if (haveTint || haveAlpha) {
			// blend image(pix) with the given tint

			scaledImage = scaledImage.convertDepth( 32 );
			int w = scaledImage.width();
			int h = scaledImage.height();
			float tint_red = float( pClass->tint.red() ) / 255;
			float tint_green = float( pClass->tint.green() ) / 255;
			float tint_blue = float( pClass->tint.blue() ) / 255;
			float tint_alpha = pClass->alpha;

			for (int y = 0; y < h; ++y) {
				QRgb *ls = (QRgb *)scaledImage.scanLine( y );
				for (int x = 0; x < w; ++x) {
					QRgb l = ls[x];
					int r = int( qRed( l ) * tint_red );
					int g = int( qGreen( l ) * tint_green );
					int b = int( qBlue( l ) * tint_blue );
					int a = int( qAlpha( l ) * tint_alpha );
					ls[x] = qRgba( r, g, b, a );
				}
			}

		}

		pClass->readyPixmap.convertFromImage( scaledImage );
	}
	// kdDebug() << "Pixmap::drawContents " << pClass->readyPixmap.size() << " " << px << " " << py << " " << sx << " " << sy << " " << sw << " " << sh << endl;
	p->drawPixmap( px, py, pClass->readyPixmap, sx, sy, sw, sh );
}

void
KdmPixmap::statusChanged()
{
	KdmItem::statusChanged();
	if (!pixmap.active.present && !pixmap.prelight.present)
		return;
	if ((state == Sprelight && !pixmap.prelight.present) ||
	    (state == Sactive && !pixmap.active.present))
		return;
	needUpdate();
}

#include "kdmpixmap.moc"