implement equalizer widget. access to legacy equalizer is now possible

src/equalizer/equalizerwidget.h

@@ -17,19 +17,40 @@
 #define __EQUALIZERWIDGET_H__
 
 #include <QWidget>
+class QString;
+class QVariant;
 class QPixmap;
 class QPaintEvent;
 
+#include "VolumeSlider.h"
+class XSettings;
 class Skin;
 class Button;
 class ToggleButton;
-class Slider;
 
 //#include <iostream>
 
+class EqualizerSlider : public Slider
+{
+	Q_OBJECT
+
+	public:
+	EqualizerSlider (QWidget*, uint, uint, uint, uint, int, int, int);
+
+	signals:
+	void numberedValueChanged (int value, int id);
+
+	protected slots:
+	void on_self_value_changed (int value);
+
+	private:
+	int m_id;
+};
+
 class EqualizerWidget : public QWidget
 {
 	Q_OBJECT
+
 	public:
 		EqualizerWidget(QWidget *parent);
 		~EqualizerWidget();
@@ -38,14 +59,21 @@ class EqualizerWidget : public QWidget
 	public slots:
 		void setPixmaps(Skin *skin);
 
+	protected slots:
+		void serverConfigChanged (QString key, QString value);
+		void setEqualizerEnabled (bool enabled);
+		void updateServerPreamp (int value);
+		void updateServerBands (int value, int id);
+
 	private:
+		XSettings *m_xsettings;
 		QPixmap m_pixmap;
 		QPixmap m_graph;
 		ToggleButton *m_enable;
 		ToggleButton *m_auto;
 		Button *m_preset;
 		Slider *m_preamp;
-		Slider *m_bands[10];
+		EqualizerSlider *m_bands[10];
 };