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//////////////////////////////////////////////////////////////////////////////
// oxygenlineeditdata.cpp
// data container for QLineEdit transition
// -------------------
//
// Copyright (c) 2009 Hugo Pereira Da Costa <hugo@oxygen-icons.org>
//
// 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 "lineeditdata.h"
// use 20 milliseconds for animation lock
const int LineEditData::lockTime_ = 20;
//______________________________________________________
LineEditData::LineEditData( QObject* parent, QLineEdit* target, int duration ):
TransitionData( parent, target, duration ),
target_( target ),
hasClearButton_( false ),
edited_( false )
{
target_.data()->installEventFilter( this );
checkClearButton();
connect( target_.data(), SIGNAL( destroyed() ), SLOT( targetDestroyed() ) );
connect( target_.data(), SIGNAL( textEdited( const QString& ) ), SLOT( textEdited( void ) ) );
connect( target_.data(), SIGNAL( textChanged( const QString& ) ), SLOT( textChanged( void ) ) );
/*
Additional signal/slot connections depending on widget's parent.
This is needed because parents sometime disable the textChanged signal of the embedded
QLineEdit
*/
if( qobject_cast<QSpinBox*>( target_.data()->parentWidget() ) ||qobject_cast<QDoubleSpinBox*>( target_.data()->parentWidget() ) )
{
connect( target_.data()->parentWidget(), SIGNAL( valueChanged( const QString& ) ), SLOT( textChanged( void ) ) );
} else if( qobject_cast<QDateTimeEdit*>( target_.data()->parentWidget() ) ) {
connect( target_.data()->parentWidget(), SIGNAL( dateTimeChanged ( const QDateTime & ) ), SLOT( textChanged( void ) ) );
}
// update cached pixmap on selection change
connect( target_.data(), SIGNAL( selectionChanged() ), SLOT( selectionChanged() ) );
}
//___________________________________________________________________
bool LineEditData::eventFilter( QObject* object, QEvent* event )
{
if( !( enabled() && object && object == target_.data() ) )
{ return TransitionData::eventFilter( object, event ); }
switch ( event->type() )
{
case QEvent::Show:
case QEvent::Resize:
case QEvent::Move:
if( !recursiveCheck() )
{
timer_.start( 0, this );
break;
}
default: break;
}
return TransitionData::eventFilter( object, event );
}
//___________________________________________________________________
void LineEditData::timerEvent( QTimerEvent* event )
{
if( event->timerId() == timer_.timerId() )
{
timer_.stop();
checkClearButton();
if( enabled() && transition() && target_ && target_.data()->isVisible() )
{
setRecursiveCheck( true );
transition().data()->setEndPixmap( transition().data()->grab( target_.data(), targetRect() ) );
setRecursiveCheck( false );
}
} else if( event->timerId() == animationLockTimer_.timerId() ) {
unlockAnimations();
} else return TransitionData::timerEvent( event );
}
//___________________________________________________________________
void LineEditData::checkClearButton( void )
{
if( !target_ ) return;
QObjectList children( target_.data()->children() );
hasClearButton_ = false;
foreach( QObject* child, children )
{
if( child->inherits( "KLineEditButton" ) )
{
hasClearButton_ = true;
clearButtonRect_ = static_cast<QWidget*>(child)->geometry();
break;
}
}
return;
}
//___________________________________________________________________
void LineEditData::textEdited( void )
{
edited_ = true;
if( !recursiveCheck() )
{ timer_.start( 0, this ); }
}
//___________________________________________________________________
void LineEditData::selectionChanged( void )
{
if( !recursiveCheck() )
{ timer_.start( 0, this ); }
}
//___________________________________________________________________
void LineEditData::textChanged( void )
{
// check whether text change was triggered manually
// in which case do not start transition
if( edited_ )
{
edited_ = false;
return;
}
if( transition().data()->isAnimated() )
{ transition().data()->endAnimation(); }
if( isLocked() )
{
// if locked one do not start the new animation, to prevent flicker
// instead, one hides the transition pixmap, trigger an update, and return.
// animations are re-locked.
transition().data()->hide();
lockAnimations();
timer_.start( 0, this );
return;
}
if( initializeAnimation() )
{
lockAnimations();
animate();
} else {
transition().data()->hide();
}
}
//___________________________________________________________________
bool LineEditData::initializeAnimation( void )
{
if( !( enabled() && target_ && target_.data()->isVisible() ) ) return false;
if( recursiveCheck() ) return false;
QRect current( targetRect() );
transition().data()->setOpacity(0);
transition().data()->setGeometry( current );
if( widgetRect_.isValid() &&
!transition().data()->currentPixmap().isNull() &&
widgetRect_ != current )
{
// if label geometry has changed since last animation
// one must clone the pixmap to make it match the right
// geometry before starting the animation.
QPixmap pixmap( current.size() );
pixmap.fill( Qt::transparent );
QPainter p( &pixmap );
p.drawPixmap( widgetRect_.topLeft() - current.topLeft(), transition().data()->currentPixmap() );
p.end();
transition().data()->setStartPixmap( pixmap );
} else {
transition().data()->setStartPixmap( transition().data()->currentPixmap() );
}
bool valid( !transition().data()->startPixmap().isNull() );
if( valid )
{
transition().data()->show();
transition().data()->raise();
}
setRecursiveCheck( true );
transition().data()->setEndPixmap( transition().data()->grab( target_.data(), targetRect() ) );
setRecursiveCheck( false );
return valid;
}
//___________________________________________________________________
bool LineEditData::animate( void )
{
transition().data()->animate();
return true;
}
//___________________________________________________________________
void LineEditData::targetDestroyed( void )
{
setEnabled( false );
target_.clear();
}
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