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geometry.cpp
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1/*
2 * Copyright 2009 Igor Trindade Oliveira <igor.oliveira@indt.org.br>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Library General Public License as
6 * published by the Free Software Foundation; either version 2, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details
13 *
14 * You should have received a copy of the GNU Library General Public
15 * License along with this program; if not, write to the
16 * Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 */
19
20#include "geometry_p.h"
21
22#include <QRect>
23
24#include <kdebug.h>
25
26namespace Plasma
27{
28
29GeometryAnimation::GeometryAnimation(QObject *parent)
30 : EasingAnimation(parent),
31 m_startGeometry(-1, -1, -1, -1)
32{
33}
34
35GeometryAnimation::~GeometryAnimation()
36{
37}
38
39void GeometryAnimation::setStartGeometry(const QRectF &geometry)
40{
41 m_startGeometry = geometry;
42}
43
44QRectF GeometryAnimation::startGeometry() const
45{
46 return m_startGeometry;
47}
48
49void GeometryAnimation::setTargetGeometry(const QRectF &geometry)
50{
51 m_targetGeometry = geometry;
52}
53
54QRectF GeometryAnimation::targetGeometry() const
55{
56 return m_targetGeometry;
57}
58
59void GeometryAnimation::updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState)
60{
61 QGraphicsWidget *w = targetWidget();
62 if (!w) {
63 return;
64 }
65
66 if (m_startGeometry == QRectF(-1, -1, -1, -1)) {
67 m_startGeometry = w->geometry();
68 }
69
70 if (oldState == Stopped && newState == Running) {
71 w->setGeometry(direction() == Forward ? m_startGeometry : m_targetGeometry);
72 } else if (newState == Stopped) {
73 w->setGeometry(direction() == Forward ? m_targetGeometry : m_startGeometry);
74 }
75}
76
77void GeometryAnimation::updateEffectiveTime(int currentTime)
78{
79 QGraphicsWidget *w = targetWidget();
80 if (w) {
81 const qreal delta = currentTime / qreal(duration());
82
83 QRectF newGeo;
84
85 newGeo.moveTopLeft(QPointF(m_startGeometry.left()*(1-delta) + m_targetGeometry.left()*(delta),
86 m_startGeometry.top()*(1-delta) + m_targetGeometry.top()*(delta)));
87 if (m_startGeometry.size() != m_targetGeometry.size()) {
88 newGeo.setSize(QSizeF(m_startGeometry.width()*(1-delta) + m_targetGeometry.width()*(delta),
89 m_startGeometry.height()*(1-delta) + m_targetGeometry.height()*(delta)));
90 } else {
91 newGeo.setSize(m_targetGeometry.size());
92 }
93 w->setGeometry(newGeo);
94 }
95}
96
97} //namespace Plasma
98
99#include "geometry_p.moc"
QGraphicsWidget
QObject
Plasma
Namespace for everything in libplasma.
Definition: abstractdialogmanager.cpp:25
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