plasma-framework/private/svg_p.h

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/*
* Copyright 2006-2010 Aaron Seigo <aseigo@kde.org>
*
* This program 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, 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 Library 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.
*/
#ifndef PLASMA_SVG_P_H
#define PLASMA_SVG_P_H
#include <QHash>
#include <QSharedData>
#include <QSvgRenderer>
#include "ksharedptr.h"
namespace Plasma
{
class Svg;
class SharedSvgRenderer : public QSvgRenderer, public QSharedData
{
public:
typedef KSharedPtr<SharedSvgRenderer> Ptr;
SharedSvgRenderer(QObject *parent = 0);
SharedSvgRenderer(
const QString &filename,
const QString &styleSheet,
QHash<QString, QSize> &elementsWithSizeHints,
QObject *parent = 0);
SharedSvgRenderer(
const QByteArray &contents,
const QString &styleSheet,
QHash<QString, QSize> &elementsWithSizeHints,
QObject *parent = 0);
private:
bool load(
const QByteArray &contents,
const QString &styleSheet,
QHash<QString, QSize> &elementsWithSizeHints);
};
class SvgPrivate
{
public:
SvgPrivate(Svg *svg);
~SvgPrivate();
//This function is meant for the rects cache
QString cacheId(const QString &elementId);
//This function is meant for the pixmap cache
QString cachePath(const QString &path, const QSize &size);
bool setImagePath(const QString &imagePath);
Theme *actualTheme();
QPixmap findInCache(const QString &elementId, const QSizeF &s = QSizeF());
void createRenderer();
void eraseRenderer();
QRectF elementRect(const QString &elementId);
QRectF findAndCacheElementRect(const QString &elementId);
QMatrix matrixForElement(const QString &elementId);
void checkColorHints();
//Folowing two are utility functions to snap rendered elements to the pixel grid
//to and from are always 0 <= val <= 1
qreal closestDistance(qreal to, qreal from);
QRectF makeUniform(const QRectF &orig, const QRectF &dst);
//Slots
void themeChanged();
void colorsChanged();
static QHash<QString, SharedSvgRenderer::Ptr> s_renderers;
Svg *q;
QWeakPointer<Theme> theme;
QHash<QString, QRectF> localRectCache;
QHash<QString, QSize> elementsWithSizeHints;
SharedSvgRenderer::Ptr renderer;
QString themePath;
QString path;
QSizeF size;
QSizeF naturalSize;
QChar styleCrc;
unsigned int lastModified;
bool multipleImages : 1;
bool themed : 1;
bool applyColors : 1;
bool usesColors : 1;
bool cacheRendering : 1;
bool themeFailed : 1;
};
}
#endif