122 lines
4.4 KiB
C++
122 lines
4.4 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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// oxygenprogressbar.cpp
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// data container for progressbar animations
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// -------------------
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//
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// Copyright (c) 2009 Hugo Pereira Da Costa <hugo@oxygen-icons.org>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//////////////////////////////////////////////////////////////////////////////
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#include <assert.h>
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#include "progressbardata.h"
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//______________________________________________
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ProgressBarData::ProgressBarData( QObject* parent, QWidget* target, int duration ):
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GenericData( parent, target, duration ),
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startValue_(0),
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endValue_(0) {
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target->installEventFilter( this );
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// set animation curve shape
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animation().data()->setEasingCurve( QEasingCurve::InOutQuad );
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// make sure target is a progressbar and store relevant values
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QProgressBar* progress = qobject_cast<QProgressBar*>( target );
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Q_ASSERT( progress );
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setStartValue( progress->value() );
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setEndValue( progress->value() );
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// setup connections
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connect( target, SIGNAL( valueChanged( int ) ), SLOT( valueChanged( int ) ) );
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}
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//______________________________________________
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bool ProgressBarData::eventFilter( QObject* object, QEvent* event ) {
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if ( !( enabled() && object && object == target().data() ) ) return AnimationData::eventFilter( object, event );
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switch ( event->type() ) {
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case QEvent::Show: {
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// reset start and end value
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QProgressBar* progress = static_cast<QProgressBar*>( target().data() );
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setStartValue( progress->value() );
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setEndValue( progress->value() );
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break;
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}
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case QEvent::Hide: {
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if ( animation().data()->isRunning() ) {
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animation().data()->stop();
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}
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break;
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}
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default:
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break;
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}
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return AnimationData::eventFilter( object, event );
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}
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//______________________________________________
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void ProgressBarData::valueChanged( int value ) {
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// do nothing if not enabled
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if ( !enabled() ) return;
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// do nothing if progress is invalid
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QProgressBar* progress = static_cast<QProgressBar*>( target().data() );
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if ( !( progress && progress->maximum() != progress->minimum() ) ) return;
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// update start and end values
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bool isRunning( animation().data()->isRunning() );
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if ( isRunning ) {
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// in case next value arrives while animation is running,
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// end animation, set value immediately
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// and trigger target update. This increases responsiveness of progressbars
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setStartValue( value );
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setEndValue( value );
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animation().data()->stop();
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setOpacity(0);
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if ( target() ) target().data()->update();
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return;
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}
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setStartValue( endValue() );
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setEndValue( value );
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// start animation only if target is enabled, visible, not running,
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// and if end and start values are different enough
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// (with end value being larger than start value)
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if ( !(target() && target().data()->isEnabled() && target().data()->isVisible()) ) return;
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if ( isRunning || endValue() - startValue() < 2 ) return;
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animation().data()->start();
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}
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