158 lines
4.0 KiB
C++
158 lines
4.0 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 2008 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 "hud/hudwidget.h"
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// Qt
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#include <QGraphicsLinearLayout>
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#include <QGraphicsProxyWidget>
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#include <QIcon>
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#include <QLayout>
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#include <QPainter>
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#include <QPropertyAnimation>
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// KF
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#include <KLocalizedString>
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// Local
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#include <hud/hudbutton.h>
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#include <hud/hudtheme.h>
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namespace Gwenview
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{
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struct HudWidgetPrivate {
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HudWidget *q = nullptr;
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QPropertyAnimation *mAnim = nullptr;
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QGraphicsWidget *mMainWidget = nullptr;
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HudButton *mCloseButton = nullptr;
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bool mAutoDeleteOnFadeout;
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void fadeTo(qreal value)
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{
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if (qFuzzyCompare(q->opacity(), value)) {
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return;
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}
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mAnim->stop();
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mAnim->setStartValue(q->opacity());
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mAnim->setEndValue(value);
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mAnim->start();
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}
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};
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HudWidget::HudWidget(QGraphicsWidget *parent)
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: QGraphicsWidget(parent)
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, d(new HudWidgetPrivate)
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{
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d->q = this;
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d->mAnim = new QPropertyAnimation(this, "opacity", this);
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d->mMainWidget = nullptr;
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d->mCloseButton = nullptr;
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d->mAutoDeleteOnFadeout = false;
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connect(d->mAnim, &QPropertyAnimation::finished, this, &HudWidget::slotFadeAnimationFinished);
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}
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HudWidget::~HudWidget()
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{
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delete d;
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}
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void HudWidget::init(QWidget *mainWidget, Options options)
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{
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auto proxy = new QGraphicsProxyWidget(this);
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proxy->setWidget(mainWidget);
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init(proxy, options);
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}
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void HudWidget::init(QGraphicsWidget *mainWidget, Options options)
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{
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if (options & OptionOpaque) {
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setProperty("opaque", QVariant(true));
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}
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auto layout = new QGraphicsLinearLayout(this);
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layout->setContentsMargins(4, 4, 4, 4);
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d->mMainWidget = mainWidget;
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if (d->mMainWidget) {
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if (d->mMainWidget->layout()) {
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d->mMainWidget->layout()->setContentsMargins(0, 0, 0, 0);
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}
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layout->addItem(d->mMainWidget);
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}
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if (options & OptionCloseButton) {
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d->mCloseButton = new HudButton(this);
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d->mCloseButton->setIcon(QIcon::fromTheme(QStringLiteral("window-close")));
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d->mCloseButton->setToolTip(i18nc("@info:tooltip", "Close"));
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layout->addItem(d->mCloseButton);
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layout->setAlignment(d->mCloseButton, Qt::AlignTop | Qt::AlignHCenter);
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connect(d->mCloseButton, &HudButton::clicked, this, &HudWidget::slotCloseButtonClicked);
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}
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}
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void HudWidget::slotCloseButtonClicked()
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{
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close();
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Q_EMIT closed();
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}
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void HudWidget::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
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{
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HudTheme::RenderInfo renderInfo = HudTheme::renderInfo(HudTheme::FrameWidget);
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painter->setPen(renderInfo.borderPen);
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painter->setRenderHint(QPainter::Antialiasing);
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painter->setBrush(renderInfo.bgBrush);
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painter->drawRoundedRect(boundingRect().adjusted(.5, .5, -.5, -.5), renderInfo.borderRadius, renderInfo.borderRadius);
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}
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void HudWidget::fadeIn()
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{
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d->fadeTo(1.);
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}
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void HudWidget::fadeOut()
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{
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d->fadeTo(0.);
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}
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void HudWidget::slotFadeAnimationFinished()
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{
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if (qFuzzyCompare(opacity(), 1)) {
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Q_EMIT fadedIn();
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} else {
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Q_EMIT fadedOut();
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if (d->mAutoDeleteOnFadeout) {
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deleteLater();
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}
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}
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}
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void HudWidget::setAutoDeleteOnFadeout(bool value)
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{
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d->mAutoDeleteOnFadeout = value;
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}
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} // namespace
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#include "moc_hudwidget.cpp"
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