plasma-framework/animations/grow.cpp
Adenilson Cavalcanti Da Silva 818e93a576 Amazon sized patch... So many changes that I can hardly remember what they are,
but this is the list from what I can recall:
- removing expand animation (it is a case of grow animation)
- removing AbstractAnimation and using QAbstractAnimation as the common base
- animations are non longer factories, but real animation (so it is just no
issue to mesh then with user created animations)
- animation group will correctly revert the direction of all subanimations
(useful for rewinding an animation)
- fixed opacity effect in pulse animation (now it works correctly)
- there is not 'forward' property, but animation 'direction' (this is how
rewinding an animation must be done)
- direction now is movementDirection property (used in SlideAnimation and RotationStacked)
- the weakpointer for the actual animaiton is non longer in AnimationPrivate but
in each specialized animation class
- hide property is being removed (in progress) since it really is a case of Fade

I guess this is it, now is just a matter of iron out the remaining bugs and polish
the public API.



svn path=/trunk/KDE/kdelibs/; revision=1057993
2009-12-03 19:30:02 +00:00

109 lines
3.2 KiB
C++

/*
* Copyright 2009 Mehmet Ali Akmanalp <makmanalp@wpi.edu>
*
* 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.
*/
#include "grow_p.h"
#include <QRect>
#include <kdebug.h>
namespace Plasma
{
GrowAnimation::GrowAnimation(QObject *parent, qreal factor)
: Animation(parent), m_animFactor(factor)
{
}
void GrowAnimation::setFactor(const qreal factor)
{
m_animFactor = qMax(qreal(0.0), factor);
}
qreal GrowAnimation::factor() const
{
return m_animFactor;
}
void GrowAnimation::setWidgetToAnimate(QGraphicsWidget *widget)
{
Animation::setWidgetToAnimate(widget);
if (animation.data()) {
delete animation.data();
animation.clear();
}
}
QAbstractAnimation* GrowAnimation::render(QObject* parent){
//get current geometry values
QGraphicsWidget *m_object = widgetToAnimate();
QRectF geometry = m_object->geometry();
QSizeF minimum = m_object->effectiveSizeHint(Qt::MinimumSize);
QSizeF maximum = m_object->effectiveSizeHint(Qt::MaximumSize);
qreal w = geometry.width();
qreal h = geometry.height();
qreal factor = m_animFactor;
//compute new geometry values
qreal newWidth;
qreal newHeight;
if (direction() == QAbstractAnimation::Forward) {
newWidth = qBound(minimum.width(), w * factor, maximum.width());
newHeight = qBound(minimum.height(), h * factor, maximum.height());
} else {
newWidth = qBound(minimum.width(), w / factor, maximum.width());
newHeight = qBound(minimum.height(), h / factor, maximum.height());
}
qreal newX;
qreal newY;
newX = geometry.x() - (newWidth - w)/2;
newY = geometry.y() - (newHeight - h)/2;
//Recreate only if needed
QPropertyAnimation *anim = animation.data();
if (!anim) {
anim = new QPropertyAnimation(m_object, "geometry", m_object);
animation = anim;
}
//Prevents from deforming (with multiple clicks)
QAbstractAnimation::State temp = anim->state();
if (temp == QAbstractAnimation::Running) {
return anim;
}
if (direction() == QAbstractAnimation::Forward) {
anim->setStartValue(QRectF(geometry.x(), geometry.y(), w, h));
anim->setEndValue(QRectF(newX, newY, newWidth, newHeight));
} else {
anim->setStartValue(QRectF(newX, newY, newWidth, newHeight));
anim->setEndValue(QRectF(geometry.x(), geometry.y(), w, h));
}
qDebug()<<"start value:"<<anim->startValue()<<"end value:"<<anim->endValue();
anim->setDuration(duration());
return anim;
}
} //namespace Plasma