plasma-framework/widgets/combobox.h

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/*
* Copyright 2008 Aaron Seigo <aseigo@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 as
* published by the Free Software Foundation; either version 2, or
* (at your option) any later version.
*
* 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.
*/
#ifndef PLASMA_COMBOBOX_H
#define PLASMA_COMBOBOX_H
#include <QtGui/QGraphicsProxyWidget>
class KComboBox;
#include <plasma/plasma_export.h>
namespace Plasma
{
class ComboBoxPrivate;
/**
* @class ComboBox plasma/widgets/combobox.h <Plasma/Widgets/ComboBox>
*
* @short Provides a Plasma-themed combo box.
*/
class PLASMA_EXPORT ComboBox : public QGraphicsProxyWidget
{
Q_OBJECT
Q_PROPERTY(QGraphicsWidget *parentWidget READ parentWidget)
Q_PROPERTY(QString text READ text NOTIFY textChanged)
Q_PROPERTY(QString styleSheet READ styleSheet WRITE setStyleSheet)
Q_PROPERTY(KComboBox *nativeWidget READ nativeWidget WRITE setNativeWidget)
Q_PROPERTY(int count READ count)
Q_PROPERTY(int currentIndex READ currentIndex WRITE setCurrentIndex NOTIFY currentIndexChanged)
public:
explicit ComboBox(QGraphicsWidget *parent = 0);
~ComboBox();
/**
* @return the display text
*/
QString text() const;
/**
* Sets the stylesheet used to control the visual display of this ComboBox
*
* @arg stylesheet a CSS string
*/
void setStyleSheet(const QString &stylesheet);
/**
* @return the stylesheet currently used with this widget
*/
QString styleSheet();
/**
* Sets the combo box wrapped by this ComboBox (widget must inherit KComboBox), ownership is transferred to the ComboBox
*
* @arg combo box that will be wrapped by this ComboBox
* @since KDE4.4
*/
void setNativeWidget(KComboBox *nativeWidget);
/**
* @return the native widget wrapped by this ComboBox
*/
KComboBox *nativeWidget() const;
/**
* Adds an item to the combo box with the given text. The
* item is appended to the list of existing items.
*/
Q_INVOKABLE void addItem(const QString &text);
/**
* Returns the number of items in the combo box
* @since 4.6
*/
int count() const;
/**
* Returns the current index of the combobox
* @since 4.6
*/
int currentIndex() const;
/**
* Sets the current index of the combobox
* @since 4.6
*/
void setCurrentIndex(int index);
public Q_SLOTS:
void clear();
Q_SIGNALS:
/**
* This signal is sent when the user chooses an item in the combobox.
* The item's text is passed.
*/
void activated(const QString &text);
/**
* This signal is sent whenever the currentIndex in the combobox changes
* either through user interaction or programmatically.
* The item's text is passed.
*/
void textChanged(const QString &text);
/**
* This signal is sent whenever the currentIndex in the combobox changes
* either through user interaction or programmatically.
*/
void currentIndexChanged(int index);
protected:
void resizeEvent(QGraphicsSceneResizeEvent *event);
void paint(QPainter *painter,
const QStyleOptionGraphicsItem *option,
QWidget *widget);
void focusInEvent(QFocusEvent *event);
void focusOutEvent(QFocusEvent *event);
void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
void changeEvent(QEvent *event);
void mousePressEvent(QGraphicsSceneMouseEvent *event);
private:
ComboBoxPrivate * const d;
friend class ComboBoxPrivate;
Q_PRIVATE_SLOT(d, void syncBorders())
Q_PRIVATE_SLOT(d, void setPalette())
};
} // namespace Plasma
#endif // multiple inclusion guard