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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "fancyiconbutton.h"
#include "hostosinfo.h"
#include "stylehelper.h"
#include <QApplication>
#include <QKeyEvent>
#include <QPainter>
#include <QPropertyAnimation>
#include <QStyle>
#include <QStyleOptionFocusRect>
#include <QStylePainter>
#include <QWindow>
namespace Utils {
FancyIconButton::FancyIconButton(QWidget *parent)
: QAbstractButton(parent)
{
setCursor(Qt::ArrowCursor);
setFocusPolicy(Qt::NoFocus);
}
void FancyIconButton::paintEvent(QPaintEvent *)
{
const qreal pixelRatio = window()->windowHandle()->devicePixelRatio();
const QPixmap iconPixmap = icon().pixmap(sizeHint(), pixelRatio,
isEnabled() ? QIcon::Normal : QIcon::Disabled);
QStylePainter painter(this);
QRect pixmapRect(QPoint(), iconPixmap.size() / iconPixmap.devicePixelRatio());
pixmapRect.moveCenter(rect().center());
if (m_autoHide)
painter.setOpacity(m_iconOpacity);
painter.drawPixmap(pixmapRect, iconPixmap);
if (hasFocus()) {
QStyleOptionFocusRect focusOption;
focusOption.initFrom(this);
focusOption.rect = pixmapRect;
if (HostOsInfo::isMacHost()) {
focusOption.rect.adjust(-4, -4, 4, 4);
painter.drawControl(QStyle::CE_FocusFrame, focusOption);
} else {
painter.drawPrimitive(QStyle::PE_FrameFocusRect, focusOption);
}
}
}
void FancyIconButton::animateShow(bool visible)
{
QPropertyAnimation *animation = new QPropertyAnimation(this, "iconOpacity");
animation->setDuration(StyleHelper::defaultFadeAnimationDuration);
animation->setEndValue(visible ? 1.0 : 0.0);
animation->start(QAbstractAnimation::DeleteWhenStopped);
}
QSize FancyIconButton::sizeHint() const
{
return icon().actualSize(QSize(32, 16)); // Find flags icon can be wider than 16px
}
void FancyIconButton::keyPressEvent(QKeyEvent *ke)
{
QAbstractButton::keyPressEvent(ke);
if (!ke->modifiers() && (ke->key() == Qt::Key_Enter || ke->key() == Qt::Key_Return))
click();
// do not forward to line edit
ke->accept();
}
void FancyIconButton::keyReleaseEvent(QKeyEvent *ke)
{
QAbstractButton::keyReleaseEvent(ke);
// do not forward to line edit
ke->accept();
}
} // namespace Utils
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