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#ifndef oxygentransitionwidget_h
#define oxygentransitionwidget_h
//////////////////////////////////////////////////////////////////////////////
// oxygentransitionwidget.h
// stores event filters and maps widgets to transitions for transitions
// -------------------
//
// Copyright (c) 2009 Hugo Pereira Da Costa <hugo.pereira@free.fr>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//////////////////////////////////////////////////////////////////////////////
#include "animation.h"
//! temporary widget used to perform smooth transition between one widget state and another
class TransitionWidget: public QWidget {
Q_OBJECT
//! declare opacity property
Q_PROPERTY( qreal opacity READ opacity WRITE setOpacity )
public:
//! shortcut to painter
typedef QWeakPointer<TransitionWidget> Pointer;
//! constructor
TransitionWidget( QWidget* parent, int duration );
//! destructor
virtual ~TransitionWidget( void )
{}
//!@name flags
//@{
enum Flag {
None = 0,
GrabFromWindow = 1 << 0,
Transparent = 1 << 1,
PaintOnWidget = 1 << 2
};
Q_DECLARE_FLAGS(Flags, Flag)
void setFlags( Flags value ) {
flags_ = value;
}
void setFlag( Flag flag, bool value = true ) {
if ( value ) flags_ |= flag;
else flags_ &= (~flag);
}
bool testFlag( Flag flag ) const {
return flags_.testFlag( flag );
}
//@}
//! duration
void setDuration( int duration ) {
if ( animation_ ) {
animation_.data()->setDuration( duration );
}
}
//! duration
int duration( void ) const {
return ( animation_ ) ? animation_.data()->duration() : 0;
}
//!@name opacity
//@{
virtual qreal opacity( void ) const {
return opacity_;
}
virtual void setOpacity( qreal value ) {
if ( opacity_ == value ) return;
opacity_ = value;
update();
}
//@}
//@name pixmaps handling
//@{
//! start
void resetStartPixmap( void ) {
setStartPixmap( QPixmap() );
}
//! start
void setStartPixmap( QPixmap pixmap ) {
startPixmap_ = pixmap;
}
//! start
const QPixmap& startPixmap( void ) const {
return startPixmap_;
}
//! end
void resetEndPixmap( void ) {
setEndPixmap( QPixmap() );
}
//! end
void setEndPixmap( QPixmap pixmap ) {
endPixmap_ = pixmap;
currentPixmap_ = pixmap;
}
//! start
const QPixmap& endPixmap( void ) const {
return endPixmap_;
}
//! current
const QPixmap& currentPixmap( void ) const {
return currentPixmap_;
}
//@}
//! grap pixmap
QPixmap grab( QWidget* = 0, QRect = QRect() );
//! true if animated
virtual bool isAnimated( void ) const {
return animation_.data()->isRunning();
}
//! end animation
virtual void endAnimation( void ) {
if ( animation_.data()->isRunning() ) animation_.data()->stop();
}
//! animate transition
virtual void animate( void ) {
endAnimation();
animation_.data()->start();
}
//! true if paint is enabled
static bool paintEnabled( void );
signals:
//! emmitted when animation is finished/aborder
void finished( void );
protected:
//! paint event
virtual void paintEvent( QPaintEvent* );
//! grab widget background
/*!
Background is not rendered properly using QWidget::render.
Use home-made grabber instead. This is directly inspired from bespin.
Copyright (C) 2007 Thomas Luebking <thomas.luebking@web.de>
*/
virtual void grabBackground( QPixmap&, QWidget*, QRect& ) const;
//! grab widget
virtual void grabWidget( QPixmap&, QWidget*, QRect& ) const;
//! fade pixmap
virtual void fade( const QPixmap& source, QPixmap& target, qreal opacity, const QRect& ) const;
private:
//! Flags
Flags flags_;
//! paint enabled
static bool paintEnabled_;
//! internal transition animation
Animation::Pointer animation_;
//! animation starting pixmap
QPixmap startPixmap_;
//! animation starting pixmap
QPixmap endPixmap_;
//! local start pixmap (used for fading)
QPixmap localStartPixmap_;
//! local end pixmap (used for fading)
QPixmap localEndPixmap_;
//! current pixmap
QPixmap currentPixmap_;
//! current state opacity
qreal opacity_;
};
#endif
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