comparison widgets/LEDButton.h @ 32:c53b949ef142

* Add LED button
* Add note model playback (currently assuming that value == MIDI pitch)
* Reorganise PlayParameters and move repository from ViewManager to new
  PlayParameterRepository class

+/* -*- c-basic-offset: 4 -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    A waveform viewer and audio annotation editor.
+    Chris Cannam, Queen Mary University of London, 2005-2006
+    
+    This is experimental software.  Not for distribution.
+*/
+
+/*
+    This is a modified version of a source file from the KDE
+    libraries.  Copyright (c) 1998-2004 Jörg Habenicht, Richard J
+    Moore and others, distributed under the GNU Lesser General Public
+    License.
+
+    Ported to Qt4 by Chris Cannam.
+
+    The original KDE widget comes in round and rectangular and flat,
+    raised, and sunken variants.  This version retains only the round
+    sunken variant.
+*/
+
+#ifndef _LED_BUTTON_H_
+#define _LED_BUTTON_H_
+
+#include <QWidget>
+
+class QColor;
+
+class LEDButton : public QWidget
+{
+    Q_OBJECT
+    Q_ENUMS(State)
+    Q_PROPERTY(State state READ state WRITE setState)
+    Q_PROPERTY(QColor color READ color WRITE setColor)
+    Q_PROPERTY(int darkFactor READ darkFactor WRITE setDarkFactor)
+
+public:
+    enum State { Off, On };
+
+    LEDButton(QWidget *parent = 0);
+    LEDButton(const QColor &col, QWidget *parent = 0);
+    LEDButton(const QColor& col, LEDButton::State state, QWidget *parent = 0);
+    ~LEDButton();
+
+    State state() const;
+    QColor color() const;
+    int darkFactor() const;
+
+    void setState(State state);
+    void toggleState();
+    void setColor(const QColor& color);
+    void setDarkFactor(int darkfactor);
+
+    virtual QSize sizeHint() const;
+    virtual QSize minimumSizeHint() const;
+
+public slots:
+
+    void toggle();
+    void on();
+    void off();
+
+protected:
+    void paintEvent(QPaintEvent *);
+
+private:
+    State led_state;
+    QColor led_color;
+
+private:
+    class LEDButtonPrivate;
+    LEDButtonPrivate *d;
+};
+
+#endif