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159 lines
3.5 KiB
C++
159 lines
3.5 KiB
C++
// vim: set tabstop=4 shiftwidth=4 expandtab:
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/*
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Gwenview: an image viewer
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Copyright 2009 Aurélien Gâteau <agateau@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
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*/
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// Self
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#include "moc_zoomslider.cpp"
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// Qt
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#include <QAction>
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#include <QHBoxLayout>
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#include <QSlider>
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#include <QToolButton>
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// KDE
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#include <KDebug>
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#include <KIcon>
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// Local
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namespace Gwenview
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{
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struct ZoomSliderPrivate
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{
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QToolButton* mZoomOutButton;
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QToolButton* mZoomInButton;
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QSlider* mSlider;
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QAction* mZoomInAction;
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QAction* mZoomOutAction;
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void updateButtons()
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{
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mZoomOutButton->setEnabled(mSlider->value() > mSlider->minimum());
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mZoomInButton->setEnabled(mSlider->value() < mSlider->maximum());
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}
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};
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static QToolButton* createZoomButton(const char* iconName)
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{
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QToolButton* button = new QToolButton;
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button->setIcon(KIcon(iconName));
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button->setAutoRaise(true);
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button->setAutoRepeat(true);
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return button;
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}
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ZoomSlider::ZoomSlider(QWidget* parent)
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: QWidget(parent)
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, d(new ZoomSliderPrivate)
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{
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d->mZoomInButton = createZoomButton("zoom-in");
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d->mZoomOutButton = createZoomButton("zoom-out");
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d->mZoomInAction = 0;
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d->mZoomOutAction = 0;
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d->mSlider = new QSlider;
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d->mSlider->setOrientation(Qt::Horizontal);
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QHBoxLayout* layout = new QHBoxLayout(this);
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layout->setMargin(0);
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layout->setSpacing(0);
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layout->addWidget(d->mZoomOutButton);
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layout->addWidget(d->mSlider);
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layout->addWidget(d->mZoomInButton);
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connect(d->mSlider, SIGNAL(actionTriggered(int)),
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SLOT(slotActionTriggered(int)));
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connect(d->mSlider, SIGNAL(valueChanged(int)),
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SIGNAL(valueChanged(int)));
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connect(d->mZoomOutButton, SIGNAL(clicked()),
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SLOT(zoomOut()));
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connect(d->mZoomInButton, SIGNAL(clicked()),
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SLOT(zoomIn()));
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}
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ZoomSlider::~ZoomSlider()
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{
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delete d;
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}
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int ZoomSlider::value() const
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{
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return d->mSlider->value();
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}
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void ZoomSlider::setValue(int value)
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{
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d->mSlider->setValue(value);
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d->updateButtons();
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}
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void ZoomSlider::setMinimum(int value)
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{
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d->mSlider->setMinimum(value);
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d->updateButtons();
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}
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void ZoomSlider::setMaximum(int value)
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{
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d->mSlider->setMaximum(value);
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d->updateButtons();
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}
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void ZoomSlider::setZoomInAction(QAction* action)
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{
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d->mZoomInAction = action;
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}
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void ZoomSlider::setZoomOutAction(QAction* action)
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{
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d->mZoomOutAction = action;
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}
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void ZoomSlider::slotActionTriggered(int)
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{
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d->updateButtons();
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}
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void ZoomSlider::zoomOut()
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{
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if (d->mZoomOutAction) {
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d->mZoomOutAction->trigger();
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} else {
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d->mSlider->triggerAction(QAbstractSlider::SliderPageStepSub);
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}
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}
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void ZoomSlider::zoomIn()
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{
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if (d->mZoomInAction) {
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d->mZoomInAction->trigger();
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} else {
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d->mSlider->triggerAction(QAbstractSlider::SliderPageStepAdd);
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}
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}
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QSlider* ZoomSlider::slider() const
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{
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return d->mSlider;
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}
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} // namespace
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