plasma-framework/widgets/pushbutton.cpp

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/*
* Copyright (C) 2007 by Siraj Razick siraj@kde.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License version 2 as
* published by the Free Software Foundation
*
* This program 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 General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "pushbutton.h"
#include <QStyleOptionFrameV2>
#include <QStyleOption>
#include <QStyle>
#include <QWidget>
#include <QPainter>
#include <QGraphicsSceneMouseEvent>
#include <QFontMetricsF>
#include <QApplication>
#include "pushbutton.moc"
namespace Plasma
{
class PushButton::Private
{
public:
Private() {}
~Private() {}
QString labelText;
QString labelIcon;
QColor labelTextColor;
QIcon icon;
QSize iconSize;
bool hasIcon;
int labelTextOpacity;
int radius;
QTimer *updateTimer;
PushButton::ButtonState state;
};
PushButton::PushButton(Widget *parent)
: QObject(),
Widget(parent),
d(new Private)
{
setAcceptedMouseButtons(Qt::LeftButton);
setAcceptsHoverEvents(true);
setEnabled(true);
resize(40.0f, 100.0f);
setPos(QPointF(0.0,0.0));
/*FIXME: Don't use hardcoded strings and colors. */
d->state = PushButton::None;
d->labelText = QString("Plasma");
d->labelTextColor = QColor(201, 201, 255);
d->hasIcon = false;
d->iconSize = QSize(32,32);
}
PushButton::~PushButton()
{
delete d;
}
void PushButton::updated(const QString&, const DataEngine::Data &data)
{
Q_UNUSED(data)
}
void PushButton::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
QStyleOptionButton options;
options.initFrom(widget);
options.state = option->state;
options.state |= isDown() ? QStyle::State_Sunken : QStyle::State_Raised;
options.rect = boundingRect().toRect();
options.text = text();
if (d->hasIcon)
{
options.icon= d->icon;
options.iconSize = d->iconSize;
}
widget->style()->drawPrimitive(QStyle::PE_PanelButtonCommand, &options, painter, widget);
widget->style()->drawPrimitive(QStyle::PE_FrameFocusRect, &options, painter, widget);
widget->style()->drawControl(QStyle::CE_PushButton, &options, painter, widget);
}
void PushButton::setText(const QString& text)
{
d->labelText = text;
/*
QFont * font = new QFont (text);
QFontMetrics * fm = new QFontMetrics(*font);
if (fm->width(text) >= d->width)
setWidth(fm->width(d->labelText) + 4);
delete fm;
delete font;
*/
}
QString PushButton::text() const
{
return d->labelText;
}
void PushButton::setIcon(const QString& path)
{
if (!path.isNull())
{
QPixmap iconPixmap(path);
d->icon = QIcon(iconPixmap);
d->iconSize = iconPixmap.size();
d->hasIcon=true;
}
else
d->hasIcon = false;
}
bool PushButton::isDown()
{
if (d->state == PushButton::Pressed)
return true;
return false;
}
void PushButton::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
event->accept();
d->state = PushButton::Pressed;
update();
// emit clicked();
}
void PushButton::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
event->accept();
if (d->state == PushButton::Pressed)
emit clicked();
d->state = PushButton::Released;
update();
}
QSizeF PushButton::sizeHint() const
{
return minimumSize();
}
QSizeF PushButton::minimumSize() const
{
QFontMetricsF m = qApp->fontMetrics();
return m.boundingRect(text()).size() + QSizeF(5.0f, 5.0f);
}
QSizeF PushButton::maximumSize() const
{
return QSizeF();
}
Qt::Orientations PushButton::expandingDirections() const
{
return Qt::Horizontal;
}
bool PushButton::isEmpty() const
{
return false;
}
} // namespace Plasma