2 * Copyright 2006-2007 Aaron Seigo <aseigo@kde.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Library General Public License as
6 * published by the Free Software Foundation; either version 2, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details
14 * You should have received a copy of the GNU Library General Public
15 * License along with this program; if not, write to the
16 * Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
25 #include <QPixmapCache>
26 #include <QSharedData>
30 #include <KSvgRenderer>
31 #include <KColorScheme>
32 #include <KIconEffect>
33 #include <KGlobalSettings>
40 class SharedSvgRenderer
: public KSvgRenderer
, public QSharedData
43 typedef KSharedPtr
<SharedSvgRenderer
> Ptr
;
45 SharedSvgRenderer(QObject
*parent
= 0)
46 : KSvgRenderer(parent
)
49 SharedSvgRenderer(const QString
&filename
, QObject
*parent
= 0)
50 : KSvgRenderer(filename
, parent
)
53 SharedSvgRenderer(const QByteArray
&contents
, QObject
*parent
= 0)
54 : KSvgRenderer(contents
, parent
)
59 //kDebug() << "leaving this world for a better one.";
66 Private(const QString
& imagePath
, Svg
*q
)
68 contentType(Svg::SingleImage
),
71 setImagePath(imagePath
, q
);
79 void setImagePath(const QString
&imagePath
, Svg
*q
)
82 disconnect(Plasma::Theme::self(), SIGNAL(changed()), q
, SLOT(themeChanged()));
83 disconnect(KGlobalSettings::self(), SIGNAL(kdisplayPaletteChanged()), q
, SLOT(colorsChanged()));
86 themed
= !QDir::isAbsolutePath(imagePath
);
87 path
= themePath
= QString();
90 themePath
= imagePath
;
91 connect(Plasma::Theme::self(), SIGNAL(changed()), q
, SLOT(themeChanged()));
93 // check if svg wants colorscheme applied
95 applyColors
= renderer
->elementExists("hint-apply-color-scheme");
96 if (applyColors
&& !Theme::self()->colors()) {
97 connect(KGlobalSettings::self(), SIGNAL(kdisplayPaletteChanged()), q
, SLOT(colorsChanged()));
103 if (!QFile::exists(path
)) {
104 kDebug() << "Plasma::Svg: file '" << path
<< "' does not exist!";
109 void removeFromCache() {
114 foreach (const QString
&id
, ids
) {
115 QPixmapCache::remove(id
);
121 void findInCache(QPixmap
& p
, const QString
& elementId
)
124 QString id
= QString::fromLatin1("%3_%2_%1_").arg(size
.width())
128 if (!elementId
.isEmpty()) {
129 id
.append(elementId
);
131 //kDebug() << "id is " << id;
133 if (!ids
.contains(id
)) {
137 if (QPixmapCache::find(id
, p
)) {
138 //kDebug() << "found cached version of " << id;
141 //kDebug() << "didn't find cached version of " << id << ", so re-rendering";
144 // we have to re-render this puppy
146 if (elementId
.isEmpty() || contentType
== Svg::ImageSet
) {
149 s
= elementSize(elementId
);
151 //kDebug() << "size for " << elementId << " is " << s;
154 p
.fill(Qt::transparent
);
155 QPainter
renderPainter(&p
);
157 if (elementId
.isEmpty()) {
158 renderer
->render(&renderPainter
);
160 renderer
->render(&renderPainter
, elementId
);
165 // Apply current color scheme if the svg asks for it
167 QImage itmp
= p
.toImage();
168 KIconEffect::colorize(itmp
, Theme::self()->backgroundColor(), 0.9);
169 p
= p
.fromImage(itmp
);
172 if (!QPixmapCache::insert( id
, p
)) {
173 kDebug() << "pixmap cache is too small for inserting" << id
<< "of size" << s
;
177 void createRenderer()
183 if (themed
&& path
.isEmpty()) {
184 path
= Plasma::Theme::self()->image(themePath
);
187 QHash
<QString
, SharedSvgRenderer::Ptr
>::const_iterator it
= renderers
.find(path
);
189 if (it
!= renderers
.end()) {
190 //kDebug() << "gots us an existing one!";
191 renderer
= it
.value();
193 renderer
= new SharedSvgRenderer(path
);
194 renderers
[path
] = renderer
;
197 size
= renderer
->defaultSize();
202 if (renderer
.count() == 2) {
203 // this and the cache reference it; and boy is this not thread safe ;)
204 renderers
.erase(renderers
.find(themePath
));
210 QSize
elementSize(const QString
& elementId
)
213 QSizeF elementSize
= renderer
->boundsOnElement(elementId
).size();
214 QSizeF naturalSize
= renderer
->defaultSize();
215 qreal dx
= size
.width() / naturalSize
.width();
216 qreal dy
= size
.height() / naturalSize
.height();
217 elementSize
.scale(elementSize
.width() * dx
, elementSize
.height() * dy
, Qt::IgnoreAspectRatio
);
219 return elementSize
.toSize();
222 QRect
elementRect(const QString
& elementId
)
225 QRectF elementRect
= renderer
->boundsOnElement(elementId
);
226 QSizeF naturalSize
= renderer
->defaultSize();
227 qreal dx
= size
.width() / naturalSize
.width();
228 qreal dy
= size
.height() / naturalSize
.height();
230 return QRect(elementRect
.x() * dx
, elementRect
.y() * dy
,
231 elementRect
.width() * dx
, elementRect
.height() * dy
);
234 QMatrix
matrixForElement(const QString
& elementId
)
237 return renderer
->matrixForElement(elementId
);
240 static QHash
<QString
, SharedSvgRenderer::Ptr
> renderers
;
241 SharedSvgRenderer::Ptr renderer
;
248 Svg::ContentType contentType
;
251 QHash
<QString
, SharedSvgRenderer::Ptr
> Svg::Private::renderers
;
253 Svg::Svg(const QString
& imagePath
, QObject
* parent
)
255 d(new Private(imagePath
, this))
264 void Svg::paint(QPainter
* painter
, const QPointF
& point
, const QString
& elementID
)
267 d
->findInCache(pix
, elementID
);
268 //kDebug() << "pix size is " << pix.size();
269 painter
->drawPixmap(QRectF(point
, pix
.size()), pix
, QRectF(QPointF(0,0), pix
.size()));
272 void Svg::paint(QPainter
* painter
, int x
, int y
, const QString
& elementID
)
274 paint(painter
, QPointF(x
, y
), elementID
);
277 void Svg::paint(QPainter
* painter
, const QRectF
& rect
, const QString
& elementID
)
280 d
->findInCache(pix
, elementID
);
281 //kDebug() << "pix size is " << pix.size();
282 painter
->drawPixmap(rect
, pix
, QRectF(QPointF(0,0), pix
.size()));
285 void Svg::resize( int width
, int height
)
287 resize( QSize( width
, height
) );
290 void Svg::resize( const QSizeF
& size
)
299 d
->size
= d
->renderer
->defaultSize();
302 QSize
Svg::elementSize(const QString
& elementId
) const
304 return d
->elementSize(elementId
);
307 QRect
Svg::elementRect(const QString
& elementId
) const
309 return d
->elementRect(elementId
);
312 bool Svg::elementExists(const QString
& elementId
) const
315 return d
->renderer
->elementExists(elementId
);
318 QString
Svg::elementAtPoint(const QPoint
&point
) const
321 QSizeF naturalSize
= d
->renderer
->defaultSize();
322 qreal dx
= d
->size
.width() / naturalSize
.width();
323 qreal dy
= d
->size
.height() / naturalSize
.height();
324 //kDebug() << point << "is really" << QPoint(point.x() *dx, naturalSize.height() - point.y() * dy);
326 return QString(); // d->renderer->elementAtPoint(QPoint(point.x() *dx, naturalSize.height() - point.y() * dy));
329 QMatrix
Svg::matrixForElement(const QString
& elementId
) const
332 return d
->renderer
->matrixForElement(elementId
);
335 bool Svg::isValid() const
338 return d
->renderer
->isValid();
341 QSize
Svg::size() const
343 return d
->size
.toSize();
346 void Svg::setContentType(ContentType contentType
)
348 d
->contentType
= contentType
;
351 Svg::ContentType
Svg::contentType()
353 return d
->contentType
;
356 void Svg::setFile(const QString
&svgFilePath
)
358 d
->setImagePath(svgFilePath
, this);
362 QString
Svg::file() const
364 return d
->themed
? d
->themePath
: d
->path
;
367 void Svg::themeChanged()
373 QString newPath
= Theme::self()->image(d
->themePath
);
375 if (d
->path
== newPath
) {
379 d
->removeFromCache();
381 //delete d->renderer; we're a KSharedPtr
383 emit
repaintNeeded();
386 void Svg::colorsChanged()
388 if (!d
->applyColors
) {
392 d
->removeFromCache();
394 emit
repaintNeeded();
397 } // Plasma namespace