plasma-framework/declarativeimports/core/iconitem.h
2012-11-27 14:03:19 +01:00

108 lines
3.0 KiB
C++

/*
* Copyright 2012 Marco Martin <mart@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 ICONITEM_H
#define ICONITEM_H
#include <QDeclarativeItem>
#include <QPixmap>
#include <QVariant>
class QPropertyAnimation;
namespace Plasma {
class Svg;
}
class IconItem : public QDeclarativeItem
{
Q_OBJECT
Q_PROPERTY(QVariant source READ source WRITE setSource NOTIFY sourceChanged)
Q_PROPERTY(bool smooth READ smooth WRITE setSmooth NOTIFY smoothChanged)
Q_PROPERTY(qreal implicitWidth READ implicitWidth WRITE setImplicitWidth NOTIFY implicitWidthChanged)
Q_PROPERTY(qreal implicitHeight READ implicitHeight WRITE setImplicitHeight NOTIFY implicitHeightChanged)
Q_PROPERTY(bool active READ isActive WRITE setActive NOTIFY activeChanged)
Q_PROPERTY(bool valid READ isValid NOTIFY validChanged)
public:
IconItem(QDeclarativeItem *parent=0);
~IconItem();
void setSource(const QVariant &source);
QVariant source() const;
bool isActive() const;
void setActive(bool active);
void setImplicitWidth(qreal width);
qreal implicitWidth() const;
void setImplicitHeight(qreal height);
qreal implicitHeight() const;
void setSmooth(const bool smooth);
bool smooth() const;
bool isValid() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
void geometryChanged(const QRectF &newGeometry,
const QRectF &oldGeometry);
Q_SIGNALS:
void activeChanged();
void sourceChanged();
void smoothChanged();
void validChanged();
void implicitWidthChanged();
void implicitHeightChanged();
private Q_SLOTS:
void loadPixmap();
void animationFinished();
void valueChanged(const QVariant &value);
private:
//all the ways we can set an source. Only one of them will be valid
QIcon m_icon;
Plasma::Svg *m_svgIcon;
QPixmap m_pixmapIcon;
QImage m_imageIcon;
//this contains the raw variant it was passed
QVariant m_source;
QSizeF m_implicitSize;
bool m_smooth;
bool m_active;
//This list contains at most 2 sources, when a pixmap transition is due,
//a new pixmap is queued, the old one is removed when the animation finishes
QList<QPixmap> m_iconPixmaps;
//animation on pixmap change
QPropertyAnimation *m_animation;
qreal m_animValue;
};
#endif