plasma-framework/applethandle_p.h

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/*
* Copyright 2007 by Kevin Ottens <ervin@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_APPLETHANDLE
#define PLASMA_APPLETHANDLE
#include <QtCore/QObject>
#include <QtGui/QGraphicsItem>
#include <QTimer>
#include "phase.h"
#include "svg.h"
namespace Plasma
{
class Applet;
class Containment;
class AppletHandle : public QObject, public QGraphicsItem
{
Q_OBJECT
public:
enum FadeType { FadeIn, FadeOut };
enum ButtonType { NoButton, MoveButton, RotateButton, ConfigureButton, RemoveButton, ResizeButton };
AppletHandle(Containment *parent, Applet *applet);
virtual ~AppletHandle();
Applet *applet() const;
QRectF boundingRect() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
void startFading(FadeType anim);
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event);
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
QVariant itemChange(GraphicsItemChange change, const QVariant &value);
bool sceneEventFilter(QGraphicsItem *watched, QEvent *event);
Q_SIGNALS:
void disappearDone(AppletHandle *self);
private Q_SLOTS:
void fadeAnimation(qreal progress);
void appletDestroyed();
void appletResized();
void fadeIn();
private:
static const int HANDLE_WIDTH = 5;
static const int ICON_SIZE = 16;
static const int ICON_MARGIN = 8;
void calculateSize();
ButtonType mapToButton(const QPointF &point) const;
void forceDisappear();
/**
* move our applet to another containment
* @param containment the containment to move to
* @param pos the (scene-relative) position to place it at
*/
void switchContainment(Containment *containment, const QPointF &pos);
QRectF m_rect;
ButtonType m_pressedButton;
Containment *m_containment;
Applet *m_applet;
qreal m_opacity;
FadeType m_anim;
Phase::AnimId m_animId;
qreal m_angle;
qreal m_tempAngle;
qreal m_scaleWidth;
qreal m_scaleHeight;
QColor m_gradientColor;
QTimer *m_hoverTimer;
bool m_buttonsOnRight;
bool m_pendingFade;
};
}
#endif // multiple inclusion guard