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/* This file is part of the KDE project
Copyright (c) 2007 Marijn Kruisselbrink <mkruisselbrink@kde.org>
Copyright (C) 2007 Thomas Zander <zander@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#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); // TODO: was QSize(margin, margin), hardcoded values seem bad
}
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.subControls = 0;
opt.activeSubControls = 0;
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);
}
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