Add a new Plasma::Slider widget based on QSlider.

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=838893

CMakeLists.txt

@@ -74,6 +74,7 @@ set(plasma_LIB_SRCS
     widgets/pushbutton.cpp
     widgets/radiobutton.cpp
     widgets/signalplotter.cpp
+    widgets/slider.cpp
     widgets/textedit.cpp
     widgets/webcontent.cpp
 )
@@ -173,6 +174,7 @@ install(FILES
     widgets/pushbutton.h
     widgets/radiobutton.h
     widgets/signalplotter.h
+    widgets/slider.h
     widgets/textedit.h
     widgets/webcontent.h
     DESTINATION ${INCLUDE_INSTALL_DIR}/plasma/widgets COMPONENT Devel)
@@ -231,6 +233,7 @@ includes/ScriptEngine
 includes/Service
 includes/ServiceJob
 includes/SignalPlotter
+includes/Slider
 includes/Svg
 includes/TextEdit
 includes/ToolTipManager

includes/Slider

@@ -0,0 +1 @@
+#include "../../plasma/widgets/slider.h"

widgets/slider.cpp

@@ -0,0 +1,141 @@
+/*
+ *   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.
+ */
+
+#include "slider.h"
+
+#include <QSlider>
+#include <QPainter>
+
+#include <KMimeType>
+
+#include "theme.h"
+#include "svg.h"
+
+namespace Plasma
+{
+
+class SliderPrivate
+{
+public:
+    SliderPrivate()
+    {
+    }
+
+    ~SliderPrivate()
+    {
+    }
+};
+
+
+Slider::Slider(Qt::Orientation orientation, QGraphicsWidget *parent)
+    : QGraphicsProxyWidget(parent),
+      d(0)
+{
+    QSlider* native = new QSlider;
+
+    connect(native, SIGNAL(sliderMoved(int)), this, SIGNAL(sliderMoved(int)));
+    connect(native, SIGNAL(valueChanged(int)), this, SIGNAL(valueChanged(int)));
+
+    setWidget(native);
+    native->setAttribute(Qt::WA_NoSystemBackground);
+    native->setOrientation(orientation);
+}
+
+Slider::Slider(QGraphicsWidget *parent)
+    : QGraphicsProxyWidget(parent),
+      d(0)
+{
+    QSlider* native = new QSlider;
+
+    connect(native, SIGNAL(sliderMoved(int)), this, SIGNAL(sliderMoved(int)));
+    connect(native, SIGNAL(valueChanged(int)), this, SIGNAL(valueChanged(int)));
+
+    setWidget(native);
+    native->setAttribute(Qt::WA_NoSystemBackground);
+}
+
+Slider::~Slider()
+{
+    delete d;
+}
+
+void Slider::setMaximum(int max)
+{
+    static_cast<QSlider*>(widget())->setMaximum(max);
+}
+
+int Slider::maximum() const
+{
+    return static_cast<QSlider*>(widget())->maximum();
+}
+
+void Slider::setMinimum(int min)
+{
+    static_cast<QSlider*>(widget())->setMinimum(min);
+}
+
+int Slider::minimum() const
+{
+    return static_cast<QSlider*>(widget())->minimum();
+}
+
+void Slider::setRange(int min, int max)
+{
+    static_cast<QSlider*>(widget())->setRange(min, max);
+}
+
+void Slider::setValue(int value)
+{
+    static_cast<QSlider*>(widget())->setValue(value);
+}
+
+int Slider::value() const
+{
+    return static_cast<QSlider*>(widget())->value();
+}
+
+void Slider::setOrientation(Qt::Orientation orientation)
+{
+    static_cast<QSlider*>(widget())->setOrientation(orientation);
+}
+
+Qt::Orientation Slider::orientation() const
+{
+    return static_cast<QSlider*>(widget())->orientation();
+}
+
+void Slider::setStyleSheet(const QString &stylesheet)
+{
+    widget()->setStyleSheet(stylesheet);
+}
+
+QString Slider::styleSheet()
+{
+    return widget()->styleSheet();
+}
+
+QSlider* Slider::nativeWidget() const
+{
+    return static_cast<QSlider*>(widget());
+}
+
+} // namespace Plasma
+
+#include <slider.moc>
+

widgets/slider.h

@@ -0,0 +1,141 @@
+/*
+ *   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_SLIDER_H
+#define PLASMA_SLIDER_H
+
+#include <QtGui/QGraphicsProxyWidget>
+
+#include <plasma/plasma_export.h>
+
+class QSlider;
+
+namespace Plasma
+{
+
+class SliderPrivate;
+
+class PLASMA_EXPORT Slider : public QGraphicsProxyWidget
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QGraphicsWidget* parentWidget READ parentWidget)
+    Q_PROPERTY(int maximum READ maximum WRITE setMinimum)
+    Q_PROPERTY(int minimum READ minimum WRITE setMinimum)
+    Q_PROPERTY(int value READ value WRITE setValue)
+    Q_PROPERTY(Qt::Orientation orientation READ orientation WRITE setOrientation)
+    Q_PROPERTY(QString styleSheet READ styleSheet WRITE setStyleSheet)
+    Q_PROPERTY(QSlider* nativeWidget READ nativeWidget)
+
+public:
+    explicit Slider(Qt::Orientation orientation = Qt::Vertical,
+                    QGraphicsWidget *parent = 0);
+    explicit Slider(QGraphicsWidget *parent = 0);
+    ~Slider();
+
+    /**
+     * @return the maximum value
+     */
+    int maximum() const;
+
+    /**
+     * @return the minimum value
+     */
+    int minimum() const;
+
+    /**
+     * @return the current value
+     */
+    int value() const;
+
+    /**
+     * @return the orientation of the slider
+     */
+    Qt::Orientation orientation() const;
+
+    /**
+     * Sets the stylesheet used to control the visual display of this Slider
+     *
+     * @arg stylesheet a CSS string
+     */
+    void setStyleSheet(const QString &stylesheet);
+
+    /**
+     * @return the stylesheet currently used with this widget
+     */
+    QString styleSheet();
+
+    /**
+     * @return the native widget wrapped by this Slider
+     */
+    QSlider* nativeWidget() const;
+
+public Q_SLOTS:
+    /**
+     * Sets the maximum value the slider can take.
+     */
+    void setMaximum(int maximum);
+
+    /**
+     * Sets the minimum value the slider can take.
+     */
+    void setMinimum(int minimum);
+
+    /**
+     * Sets the minimum and maximum values the slider can take.
+     */
+    void setRange(int minimum, int maximum);
+
+    /**
+     * Sets the value of the slider.
+     *
+     * If it is outside the range specified by minimum() and maximum(),
+     * it will be adjusted to fit.
+     */
+    void setValue(int value);
+
+    /**
+     * Sets the orientation of the slider.
+     */
+    void setOrientation(Qt::Orientation orientation);
+
+Q_SIGNALS:
+    /**
+     * This signal is emitted when the user drags the slider.
+     *
+     * In fact, it is emitted whenever the sliderMoved(int) signal
+     * of QSlider would be emitted.  See the Qt documentation for
+     * more information.
+     */
+    void sliderMoved(int value);
+
+    /**
+     * This signal is emitted when the slider value has changed,
+     * with the new slider value as argument.
+     */
+    void valueChanged(int value);
+
+private:
+    SliderPrivate * const d;
+};
+
+} // namespace Plasma
+
+#endif // multiple inclusion guard