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//////////////////////////////////////////////////////////////////////////////
// oxygentoolbardata.cpp
// stores event filters and maps widgets to timelines for animations
// -------------------
//
// 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 "toolbardata.h"
//________________________________________________________________________
ToolBarData::ToolBarData( QObject* parent, QWidget* target, int duration ):
AnimationData( parent, target ),
opacity_( 0 ),
progress_( 0 ),
currentObject_( 0 ),
entered_( false ) {
target->installEventFilter( this );
animation_ = new Animation( duration, this );
animation().data()->setDirection( Animation::Forward );
animation().data()->setStartValue( 0.0 );
animation().data()->setEndValue( 1.0 );
animation().data()->setTargetObject( this );
animation().data()->setPropertyName( "opacity" );
// progress animation
progressAnimation_ = new Animation( duration, this );
progressAnimation().data()->setDirection( Animation::Forward );
progressAnimation().data()->setStartValue( 0 );
progressAnimation().data()->setEndValue( 1 );
progressAnimation().data()->setTargetObject( this );
progressAnimation().data()->setPropertyName( "progress" );
progressAnimation().data()->setEasingCurve( QEasingCurve::Linear );
// add all children widgets to event handler
foreach( QObject * child, target->children() ) {
if ( qobject_cast<QToolButton*>( child ) ) childAddedEvent( child );
}
}
//______________________________________________
bool ToolBarData::eventFilter( QObject* object, QEvent* event ) {
// check object
const QObject* targetData = target().data();
if ( object == targetData ) {
switch ( event->type() ) {
case QEvent::Enter: {
if ( enabled() ) {
object->event( event );
enterEvent( object );
return true;
}
else return false;
}
case QEvent::ChildAdded: {
// add children even in disabled case, to make sure they
// are properly registered when engine is enabled
QChildEvent* childEvent( static_cast<QChildEvent*>( event ) );
childAddedEvent( childEvent->child() );
break;
}
default:
break;
}
}
else if ( object->parent() == targetData ) {
if ( !enabled() ) return false;
switch ( event->type() ) {
case QEvent::HoverEnter:
childEnterEvent( object );
break;
case QEvent::HoverLeave:
if ( currentObject() && !timer_.isActive() ) timer_.start( 100, this );
break;
default:
break;
}
}
return false;
}
//____________________________________________________________
void ToolBarData::updateAnimatedRect( void ) {
// check rect validity
if ( currentRect().isNull() || previousRect().isNull() ) {
animatedRect_ = QRect();
return;
}
// compute rect located 'between' previous and current
animatedRect_.setLeft( previousRect().left() + progress() * (currentRect().left() - previousRect().left()) );
animatedRect_.setRight( previousRect().right() + progress() * (currentRect().right() - previousRect().right()) );
animatedRect_.setTop( previousRect().top() + progress() * (currentRect().top() - previousRect().top()) );
animatedRect_.setBottom( previousRect().bottom() + progress() * (currentRect().bottom() - previousRect().bottom()) );
// trigger update
setDirty();
return;
}
//________________________________________________________________________
void ToolBarData::enterEvent( const QObject* ) {
if ( timer_.isActive() ) timer_.stop();
if ( animation().data()->isRunning() ) animation().data()->stop();
if ( progressAnimation().data()->isRunning() ) progressAnimation().data()->stop();
clearPreviousRect();
clearAnimatedRect();
return;
}
//________________________________________________________________________
void ToolBarData::leaveEvent( const QObject* ) {
if ( progressAnimation().data()->isRunning() ) progressAnimation().data()->stop();
if ( animation().data()->isRunning() ) animation().data()->stop();
clearAnimatedRect();
clearPreviousRect();
if ( currentObject() ) {
clearCurrentObject();
animation().data()->setDirection( Animation::Backward );
animation().data()->start();
}
return;
}
//________________________________________________________________________
void ToolBarData::childEnterEvent( const QObject* object ) {
if ( object == currentObject() ) return;
const QToolButton* local = qobject_cast<const QToolButton*>( object );
// check if current position match another action
if ( local && local->isEnabled() ) {
if ( timer_.isActive() ) timer_.stop();
// get rect
QRect activeRect( local->rect().translated( local->mapToParent( QPoint(0, 0) ) ) );
// update previous rect if the current action is valid
if ( currentObject() ) {
if ( !progressAnimation().data()->isRunning() ) {
setPreviousRect( currentRect() );
}
else if ( progress() < 1 && currentRect().isValid() && previousRect().isValid() ) {
// re-calculate previous rect so that animatedRect
// is unchanged after currentRect is updated
// this prevents from having jumps in the animation
qreal ratio = progress() / (1.0 - progress());
previousRect_.adjust(
ratio * ( currentRect().left() - activeRect.left() ),
ratio * ( currentRect().top() - activeRect.top() ),
ratio * ( currentRect().right() - activeRect.right() ),
ratio * ( currentRect().bottom() - activeRect.bottom() ) );
}
// update current action
setCurrentObject( local );
setCurrentRect( activeRect );
if ( animation().data()->isRunning() ) animation().data()->stop();
if ( !progressAnimation().data()->isRunning() ) progressAnimation().data()->start();
}
else {
setCurrentObject( local );
setCurrentRect( activeRect );
if ( !entered_ ) {
entered_ = true;
if ( animation().data()->isRunning() ) animation().data()->stop();
if ( !progressAnimation().data()->isRunning() ) progressAnimation().data()->start();
}
else {
setPreviousRect( activeRect );
clearAnimatedRect();
if ( progressAnimation().data()->isRunning() ) progressAnimation().data()->stop();
animation().data()->setDirection( Animation::Forward );
if ( !animation().data()->isRunning() ) animation().data()->start();
}
}
}
else if ( currentObject() ) {
if ( !timer_.isActive() ) timer_.start( 100, this );
}
return;
}
//___________________________________________________________________
void ToolBarData::childAddedEvent( QObject* object ) {
QWidget* widget( qobject_cast<QWidget*>( object ) );
if ( !widget ) return;
// add connections
connect( animation().data(), SIGNAL( valueChanged( const QVariant& ) ), widget, SLOT( update() ), Qt::UniqueConnection );
connect( progressAnimation().data(), SIGNAL( valueChanged( const QVariant& ) ), widget, SLOT( update() ), Qt::UniqueConnection );
// add event filter
widget->removeEventFilter( this );
widget->installEventFilter( this );
}
//___________________________________________________________
void ToolBarData::timerEvent( QTimerEvent* event ) {
if ( event->timerId() != timer_.timerId() ) return AnimationData::timerEvent( event );
timer_.stop();
leaveEvent( target().data() );
}
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