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kdeui: remove unused KFadeWidgetEffect class

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for example on how to do it (somewhat) properly see KMessageWidget

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2022-11-21 20:05:41 +02:00
parent a37bd35627
commit 521d3cd59b
8 changed files with 0 additions and 364 deletions
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1
includes/CMakeLists.txt
View file

@ -118,7 +118,6 @@ install(
KEditToolBar
KEncodingFileDialog
KExtendableItemDelegate
KFadeWidgetEffect
KFile
KFileDialog
KFileFilterCombo

1
includes/KFadeWidgetEffect
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@ -1 +0,0 @@
#include "../kfadewidgeteffect.h"

2
kdeui/CMakeLists.txt
View file

@ -208,7 +208,6 @@ set(kdeui_LIB_SRCS
widgets/kdatetimewidget.cpp
widgets/kdatewidget.cpp
widgets/keditlistwidget.cpp
widgets/kfadewidgeteffect.cpp
widgets/khbox.cpp
widgets/khelpmenu.cpp
widgets/khistorycombobox.cpp
@ -528,7 +527,6 @@ install(
widgets/kdatewidget.h
widgets/kdialogbuttonbox.h
widgets/keditlistwidget.h
widgets/kfadewidgeteffect.h
widgets/khbox.h
widgets/khelpmenu.h
widgets/khistorycombobox.h

1
kdeui/tests/CMakeLists.txt
View file

@ -38,7 +38,6 @@ KDEUI_UNIT_TESTS(
kcompletioncoretest
kconfigskeletontest
kdualactiontest
kfadewidgeteffecttest
kfindtest
kglobalsettingstest
kmainwindow_unittest

68
kdeui/tests/kfadewidgeteffecttest.cpp
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@ -1,68 +0,0 @@
/* This file is part of the KDE project
Copyright (C) 2008 Matthias Kretz <kretz@kde.org>
Permission to use, copy, modify, and distribute this software
and its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all
copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
#include <qtest_kde.h>
#include <kfadewidgeteffect.h>
#include <QtCore/QPointer>
class KFadeWidgetEffectTest : public QObject
{
Q_OBJECT
private slots:
void initTestCase();
void createEffect();
void startEffect();
void cleanupTestCase();
private:
QWidget *parent, *w;
QPointer<KFadeWidgetEffect> fade;
};
void KFadeWidgetEffectTest::initTestCase()
{
parent = new QWidget;
w = new QWidget(parent);
//parent->show();
}
void KFadeWidgetEffectTest::createEffect()
{
fade = new KFadeWidgetEffect(w);
}
void KFadeWidgetEffectTest::startEffect()
{
fade->start(250);
QVERIFY(QTest::kWaitForSignal(fade, SIGNAL(destroyed(QObject*)), 2000));
}
void KFadeWidgetEffectTest::cleanupTestCase()
{
QVERIFY(!fade);
delete parent;
}
QTEST_KDEMAIN(KFadeWidgetEffectTest, GUI)
#include "kfadewidgeteffecttest.moc"

152
kdeui/widgets/kfadewidgeteffect.cpp
View file

@ -1,152 +0,0 @@
/* This file is part of the KDE project
Copyright (C) 2008 Matthias Kretz <kretz@kde.org>
Copyright (C) 2008 Rafael Fernández López <ereslibre@kde.org>
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 of the License, or (at your option) version 3.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "kfadewidgeteffect.h"
#include "kfadewidgeteffect_p.h"
#include <QtCore/QEvent>
#include <QtGui/QPaintEngine>
#include <QtGui/QPainter>
#include <kglobalsettings.h>
KFadeWidgetEffectPrivate::KFadeWidgetEffectPrivate(QWidget *_destWidget)
: destWidget(_destWidget), disabled(false)
{
}
// Code from KFileItemDelegate (Author: Frederik Höglund)
// Fast transitions. Read:
// http://techbase.kde.org/Development/Tutorials/Graphics/Performance
// for further information on why not use setOpacity.
QPixmap KFadeWidgetEffectPrivate::transition(const QPixmap &from, const QPixmap &to, qreal amount) const
{
const int value = int(0xff * amount);
if (value == 0)
return from;
if (value == 1)
return to;
QColor color;
color.setAlphaF(amount);
// If the native paint engine supports Porter/Duff compositing and CompositionMode_Plus
if (from.paintEngine()->hasFeature(QPaintEngine::PorterDuff) &&
from.paintEngine()->hasFeature(QPaintEngine::BlendModes))
{
QPixmap under = from;
QPixmap over = to;
QPainter p;
p.begin(&over);
p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
p.fillRect(over.rect(), color);
p.end();
p.begin(&under);
p.setCompositionMode(QPainter::CompositionMode_DestinationOut);
p.fillRect(under.rect(), color);
p.setCompositionMode(QPainter::CompositionMode_Plus);
p.drawPixmap(0, 0, over);
p.end();
return under;
} else {
// Fall back to using QRasterPaintEngine to do the transition.
QImage under = from.toImage();
QImage over = to.toImage();
QPainter p;
p.begin(&over);
p.setCompositionMode(QPainter::CompositionMode_DestinationIn);
p.fillRect(over.rect(), color);
p.end();
p.begin(&under);
p.setCompositionMode(QPainter::CompositionMode_DestinationOut);
p.fillRect(under.rect(), color);
p.setCompositionMode(QPainter::CompositionMode_Plus);
p.drawImage(0, 0, over);
p.end();
return QPixmap::fromImage(under);
}
}
KFadeWidgetEffect::KFadeWidgetEffect(QWidget *destWidget)
: QWidget(destWidget ? destWidget->parentWidget() : 0),
d_ptr(new KFadeWidgetEffectPrivate(destWidget))
{
Q_D(KFadeWidgetEffect);
d->q_ptr = this;
Q_ASSERT(destWidget && destWidget->parentWidget());
if (!destWidget || !destWidget->parentWidget() || !destWidget->isVisible() ||
!(KGlobalSettings::graphicEffectsLevel() & KGlobalSettings::SimpleAnimationEffects)) {
d->disabled = true;
hide();
return;
}
setGeometry(QRect(destWidget->mapTo(parentWidget(), QPoint(0, 0)), destWidget->size()));
d->oldPixmap = QPixmap::grabWidget(destWidget);
d->timeLine.setFrameRange(0, 255);
d->timeLine.setEasingCurve(QEasingCurve(QEasingCurve::OutCurve));
connect(&d->timeLine, SIGNAL(finished()), SLOT(finished()));
connect(&d->timeLine, SIGNAL(frameChanged(int)), SLOT(repaint()));
show();
}
KFadeWidgetEffect::~KFadeWidgetEffect()
{
delete d_ptr;
}
void KFadeWidgetEffectPrivate::finished()
{
Q_Q(KFadeWidgetEffect);
destWidget->setUpdatesEnabled(false);
q->hide();
q->deleteLater();
destWidget->setUpdatesEnabled(true);
}
void KFadeWidgetEffect::start(int duration)
{
Q_D(KFadeWidgetEffect);
if (d->disabled) {
deleteLater();
return;
}
d->newPixmap = QPixmap::grabWidget(d->destWidget);
d->timeLine.setDuration(duration);
d->timeLine.start();
}
void KFadeWidgetEffect::paintEvent(QPaintEvent *)
{
Q_D(KFadeWidgetEffect);
QPainter p(this);
p.drawPixmap(rect(), d->transition(d->oldPixmap, d->newPixmap, d->timeLine.currentValue()));
p.end();
}
#include "moc_kfadewidgeteffect.cpp"

92
kdeui/widgets/kfadewidgeteffect.h
View file

@ -1,92 +0,0 @@
/* This file is part of the KDE project
Copyright (C) 2008 Matthias Kretz <kretz@kde.org>
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 of the License, or (at your option) version 3.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KFADEWIDGETEFFECT_H
#define KFADEWIDGETEFFECT_H
#include <kdeui_export.h>
#include <QtGui/QWidget>
class KFadeWidgetEffectPrivate;
/** \class KFadeWidgetEffect kfadewidgeteffect.h KFadeWidgetEffect
* \brief Animates changes fading the new UI over the old look.
*
* This widget will put itself above the widget that will change and show a fading transition from
* the old to the new UI. It will delete itself after the animation is finished.
* Example:
* \code
* KFadeWidgetEffect *animation = new KFadeWidgetEffect(widgetThatWillChange);
* // do changes on widgetThatWillChange
* // ...
* animation->start();
* \endcode
*
* \note The widget that changes needs to have a parent widget. KFadeWidgetEffect does not work
* for toplevel widgets (windows).
*
* \author Matthias Kretz <kretz@kde.org>
* \since 4.1
*/
class KDEUI_EXPORT KFadeWidgetEffect : public QWidget
{
Q_OBJECT
Q_DECLARE_PRIVATE(KFadeWidgetEffect)
public:
/**
* Create the animation widget. Takes a snapshot of the \p destWidget to use as old image
* that gets faded out.
*
* \param destWidget The widget that will change and should fade to the new look.
*/
KFadeWidgetEffect(QWidget *destWidget);
/**
* Destructor.
*
* \warning KFadeWidgetEffect deletes itself after the animation is finished.
*/
~KFadeWidgetEffect();
/**
* Starts the animation.
*
* Call this function after all visual changes are done.
*
* \param duration The duration of the animation in milliseconds.
*/
void start(int duration = 250);
protected:
/**
* \internal
*/
void paintEvent(QPaintEvent *);
/**
* \internal
*/
KFadeWidgetEffectPrivate *const d_ptr;
private:
Q_PRIVATE_SLOT(d_func(), void finished())
};
#endif // KFADEWIDGETEFFECT_H

47
kdeui/widgets/kfadewidgeteffect_p.h
View file

@ -1,47 +0,0 @@
/* This file is part of the KDE project
Copyright (C) 2008 Matthias Kretz <kretz@kde.org>
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 of the License, or (at your option) version 3.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KFADEWIDGETEFFECT_P_H
#define KFADEWIDGETEFFECT_P_H
#include "kfadewidgeteffect.h"
#include <QtCore/QTimeLine>
#include <QtGui/QPixmap>
class KFadeWidgetEffectPrivate
{
Q_DECLARE_PUBLIC(KFadeWidgetEffect)
protected:
KFadeWidgetEffectPrivate(QWidget *_destWidget);
KFadeWidgetEffect *q_ptr;
private:
QPixmap transition(const QPixmap &from, const QPixmap &to, qreal amount) const;
void finished();
QTimeLine timeLine;
QPixmap oldPixmap;
QPixmap newPixmap;
QWidget *destWidget;
bool disabled;
};
#endif // KFADEWIDGETEFFECT_P_H