File indexing completed on 2024-05-12 16:02:09

 /* This file is part of the KDE project
    SPDX-FileCopyrightText: 2007 Marijn Kruisselbrink <mkruisselbrink@kde.org>
    SPDX-FileCopyrightText: 2007 Thomas Zander <zander@kde.org>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "KoDockWidgetTitleBarButton.h"
 
 #include <WidgetsDebug.h>
 
 #include <QAbstractButton>
 #include <QAction>
 #include <QLabel>
 #include <QLayout>
 #include <QStyle>
 #include <QStylePainter>
 #include <QStyleOptionFrame>
 
 class Q_DECL_HIDDEN KoDockWidgetTitleBarButton::Private
 {
 public:
     Private() : styleSize(0, 0), iconSize(0) {}
     QSize styleSize;
     int iconSize;
 };
 
 KoDockWidgetTitleBarButton::KoDockWidgetTitleBarButton(QWidget *parent)
         : QAbstractButton(parent), d(new Private())
 {
     setFocusPolicy(Qt::NoFocus);
 }
 
 KoDockWidgetTitleBarButton::~KoDockWidgetTitleBarButton()
 {
     delete d;
 }
 
 QSize KoDockWidgetTitleBarButton::sizeHint() const
 {
     ensurePolished();
 
     const int margin = style()->pixelMetric(QStyle::PM_DockWidgetTitleBarButtonMargin, 0, this);
     if (icon().isNull()) {
         return QSize(18, 18);
     }
 
     int iconSize = style()->pixelMetric(QStyle::PM_SmallIconSize, 0, this);
     if (iconSize != d->iconSize) {
         const_cast<KoDockWidgetTitleBarButton*>(this)->d->iconSize = iconSize;
         const QPixmap pm = icon().pixmap(iconSize);
         const_cast<KoDockWidgetTitleBarButton*>(this)->d->styleSize = QSize(pm.width() + margin, pm.height() + margin);
     }
     return d->styleSize;
 }
 
 QSize KoDockWidgetTitleBarButton::minimumSizeHint() const
 {
     return sizeHint();
 }
 
 // redraw the button when the mouse enters or leaves it
 void KoDockWidgetTitleBarButton::enterEvent(QEvent *event)
 {
     if (isEnabled())
         update();
     QAbstractButton::enterEvent(event);
 }
 
 void KoDockWidgetTitleBarButton::leaveEvent(QEvent *event)
 {
     if (isEnabled())
         update();
     QAbstractButton::leaveEvent(event);
 }
 
 void KoDockWidgetTitleBarButton::paintEvent(QPaintEvent *)
 {
     QPainter p(this);
 
     QStyleOptionToolButton opt;
     opt.initFrom(this);
     opt.state |= QStyle::State_AutoRaise;
 
     if (isEnabled() && underMouse() && !isChecked() && !isDown())
         opt.state |= QStyle::State_Raised;
     if (isChecked())
         opt.state |= QStyle::State_On;
     if (isDown())
         opt.state |= QStyle::State_Sunken;
     style()->drawPrimitive(QStyle::PE_PanelButtonTool, &opt, &p, this);
 
     opt.icon = icon();
     opt.features = QStyleOptionToolButton::None;
     opt.arrowType = Qt::NoArrow;
     int size = style()->pixelMetric(QStyle::PM_SmallIconSize, 0, this);
     opt.iconSize = QSize(size, size);
     style()->drawComplexControl(QStyle::CC_ToolButton, &opt, &p, this);
 }