label.h

Go to the documentation of this file.

/*
 *   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_LABEL_H
#define PLASMA_LABEL_H

#include <QtGui/QGraphicsProxyWidget>

#include <plasma/plasma_export.h>
#include <plasma/dataengine.h>

class QLabel;

namespace Plasma
{

class LabelPrivate;

class PLASMA_EXPORT Label : public QGraphicsProxyWidget
{
    Q_OBJECT

    Q_PROPERTY(QGraphicsWidget *parentWidget READ parentWidget)
    Q_PROPERTY(QString text READ text WRITE setText)
    Q_PROPERTY(QString image READ image WRITE setImage)
    Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment)
    Q_PROPERTY(bool hasScaledContents READ hasScaledContents WRITE setScaledContents)
    Q_PROPERTY(bool textSelectable READ textSelectable WRITE setTextSelectable)
    Q_PROPERTY(bool wordWrap READ wordWrap WRITE setWordWrap)
    Q_PROPERTY(QString styleSheet READ styleSheet WRITE setStyleSheet)
    Q_PROPERTY(QLabel *nativeWidget READ nativeWidget)

public:
    explicit Label(QGraphicsWidget *parent = 0);
    ~Label();

    void setText(const QString &text);

    QString text() const;

    void setImage(const QString &path);

    QString image() const;

    void setAlignment(Qt::Alignment alignment);

    Qt::Alignment alignment() const;

    void setScaledContents(bool scaled);

    bool hasScaledContents() const;

    void setTextSelectable(bool enable);
    
    bool textSelectable() const;

    void setWordWrap(bool wrap);

    bool wordWrap() const;

    void setStyleSheet(const QString &stylesheet);

    QString styleSheet();

    QLabel *nativeWidget() const;

Q_SIGNALS:
    void linkActivated(const QString &link);
    void linkHovered(const QString &link);

public Q_SLOTS:
    void dataUpdated(const QString &sourceName, const Plasma::DataEngine::Data &data);

protected:
    void resizeEvent(QGraphicsSceneResizeEvent *event);
    void mousePressEvent(QGraphicsSceneMouseEvent *event);
    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
    void paint(QPainter *painter,
               const QStyleOptionGraphicsItem *option,
               QWidget *widget);
    void changeEvent(QEvent *event);
    bool event(QEvent *event);
    QVariant itemChange(GraphicsItemChange change, const QVariant & value);
    void contextMenuEvent(QGraphicsSceneContextMenuEvent *event);
    QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint) const;

private:
    Q_PRIVATE_SLOT(d, void setPalette())
    Q_PRIVATE_SLOT(d, void setPixmap())

    LabelPrivate * const d;
};

} // namespace Plasma

#endif // multiple inclusion guard