plasma-framework/private/applethandle_p.h
Ambroz Bizjak 69eccb04ce Make sure aspect ratio is preserved when size limits are hit, minor
cleanup

svn path=/trunk/KDE/kdelibs/; revision=901264
2008-12-24 21:23:27 +00:00

148 lines
4.4 KiB
C++

/*
* 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_P_H
#define PLASMA_APPLETHANDLE_P_H
#include <QtCore/QObject>
#include <QtGui/QGraphicsItem>
#include <QTimer>
#include "animator.h"
#include "svg.h"
class QGraphicsView;
namespace Plasma
{
class Applet;
class Containment;
class FrameSvg;
class View;
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, const QPointF &hoverPos);
virtual ~AppletHandle();
void detachApplet ();
Applet *applet() const;
QRectF boundingRect() const;
QPainterPath shape() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
void startFading(FadeType anim, const QPointF &hoverPos);
void setHoverPos(const QPointF &hoverPos);
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event);
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
void hoverMoveEvent(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();
void leaveTimeout();
void emitDisappear();
private:
static const int HANDLE_MARGIN = 3;
void calculateSize();
ButtonType mapToButton(const QPointF &point) const;
void forceDisappear();
int minimumHeight();
/**
* 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);
bool leaveCurrentView(const QPoint &pos) const;
QRectF m_rect;
QRectF m_decorationRect;
QRectF m_totalRect;
ButtonType m_pressedButton;
Containment *m_containment;
Applet *m_applet;
int m_iconSize;
qreal m_opacity;
FadeType m_anim;
int m_animId;
qreal m_angle;
QColor m_gradientColor;
QTimer *m_hoverTimer;
QTimer *m_leaveTimer;
QPixmap *m_backgroundBuffer;
QGraphicsView *m_currentView;
Svg *m_configureIcons;
FrameSvg *m_background;
QPoint m_mousePos; //mousepos relative to applet
QPointF m_entryPos; //where the hover in event occurred
QPointF m_pos; //current position of applet in sceneCoords
qreal m_zValue; //current zValue of the applet, so it can be restored after drag.
// used for both resize and rotate
QPointF m_origAppletCenter;
QPointF m_origAppletSize;
// used for resize
QPointF m_resizeStaticPoint;
QPointF m_resizeGrabPoint;
// used for rotate
qreal m_rotateAngleOffset; // applet angle minus cursor angle
bool m_buttonsOnRight : 1;
bool m_pendingFade : 1;
};
}
#endif // multiple inclusion guard