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/*
Code from Gwenview
SPDX-FileCopyrightText: 2007 Aurélien Gâteau <agateau@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "slidecontainer.h"
using namespace Qt::Literals::StringLiterals;
// Qt
#include <QEvent>
#include <QPropertyAnimation>
#include <QResizeEvent>
using namespace TextAddonsWidgets;
static constexpr int SLIDE_DURATION = 250;
SlideContainer::SlideContainer(QWidget *parent)
: QFrame(parent)
, mContent(nullptr)
{
setFixedHeight(0);
hide();
}
QWidget *SlideContainer::content() const
{
return mContent;
}
void SlideContainer::setContent(QWidget *content)
{
if (mContent) {
mContent->setParent(nullptr);
mContent->removeEventFilter(this);
}
mContent = content;
if (mContent) {
mContent->setParent(this);
mContent->installEventFilter(this);
mContent->hide();
}
}
void SlideContainer::animTo(int newHeight)
{
if (mAnim.data()) {
mAnim.data()->deleteLater();
disconnect(mAnim.data(), &QPropertyAnimation::finished, this, &SlideContainer::slotAnimFinished);
}
auto anim = new QPropertyAnimation(this, "slideHeight", this);
anim->setDuration(SLIDE_DURATION);
anim->setStartValue(slideHeight());
anim->setEndValue(newHeight);
mAnim = anim;
anim->start(QAbstractAnimation::DeleteWhenStopped);
connect(anim, &QPropertyAnimation::finished, this, &SlideContainer::slotAnimFinished);
}
void SlideContainer::slideIn()
{
mSlidingOut = false;
show();
mContent->show();
mContent->adjustSize();
delete mAnim.data();
if (height() == mContent->height()) {
return;
}
animTo(mContent->height());
}
void SlideContainer::slideOut()
{
if (height() == 0) {
return;
}
mSlidingOut = true;
animTo(0);
}
QSize SlideContainer::sizeHint() const
{
if (mContent) {
return mContent->sizeHint();
} else {
return {};
}
}
QSize SlideContainer::minimumSizeHint() const
{
if (mContent) {
return mContent->minimumSizeHint();
} else {
return {};
}
}
void SlideContainer::resizeEvent(QResizeEvent *event)
{
if (mContent) {
if (event->oldSize().width() != width()) {
adjustContentGeometry();
}
}
}
void SlideContainer::adjustContentGeometry()
{
if (mContent) {
mContent->setGeometry(0, height() - mContent->height(), width(), mContent->height());
}
}
bool SlideContainer::eventFilter(QObject *, QEvent *event)
{
if (event->type() == QEvent::Resize) {
if (!mSlidingOut && height() != 0) {
animTo(mContent->height());
}
}
return false;
}
int SlideContainer::slideHeight() const
{
return isVisible() ? height() : 0;
}
void SlideContainer::setSlideHeight(int value)
{
setFixedHeight(value);
adjustContentGeometry();
}
void SlideContainer::slotAnimFinished()
{
if (height() == 0) {
mSlidingOut = false;
hide();
Q_EMIT slidedOut();
} else {
Q_EMIT slidedIn();
}
}
#include "moc_slidecontainer.cpp"
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