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 <QDebug>
#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 height;
int width;
int maxWidth;
int minWidth;
int minHeight;
int maxHeight;
int radius;
QTimer * updateTimer;
PushButton::ButtonState state;
};
PushButton::PushButton(QGraphicsItem *parent)
: QObject(),
QGraphicsItem(parent),
QLayoutItem (Qt::AlignHCenter),
d(new Private)
{
setAcceptedMouseButtons(Qt::LeftButton);
setAcceptsHoverEvents(true);
setEnabled(true);
d->height = 40;
d->width = 100 ;
d->minWidth = d->width;
d->maxWidth = d->width;
d->minHeight = d->height;
d->maxHeight = d->height;
setPos(QPointF(0.0,0.0));
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)
}
QRectF PushButton::boundingRect() const
{
return QRectF(x(), y(), d->width, d->height);
}
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;
}
int PushButton::height() const
{
return d->height;
}
int PushButton::width() const
{
return d->width;
}
void PushButton::setHeight(int h)
{
prepareGeometryChange();
d->height = h;
update();
}
void PushButton::setWidth(int w)
{
if (!(w >= d->maxWidth))
{
prepareGeometryChange ();
d->width = w;
update();
}
}
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;
}
QSize PushButton::size() const
{
return QSize(d->width, d->height);
}
void PushButton::setSize(const QSize& s)
{
prepareGeometryChange();
if (!d->maxWidth >= s.width())
d->width = s.width();
d->height = s.height();
update();
}
void PushButton::setMaximumWidth(int w)
{
d->maxWidth= w;
}
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();
}
QSize PushButton::sizeHint() const
{
return QSize(d->width,d->height);
}
QSize PushButton::minimumSize() const
{
return QSize(d->minWidth,d->minHeight);
}
QSize PushButton::maximumSize() const
{
return QSize(d->maxWidth,d->maxHeight);
}
Qt::Orientations PushButton::expandingDirections() const
{
return Qt::Horizontal;
}
void PushButton::setGeometry(const QRect & r)
{
setSize(r.size());
setPos(r.x(),r.y());
}
QRect PushButton::geometry() const
{
return boundingRect().toRect();
}
} // namespace Plasma