X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fslider.h;h=a95a6a57665fd905577d3e76f54afa76ef5313f1;hb=HEAD;hp=c88c15b9f10f84354db7a36465fb53019ecfb2b2;hpb=c1f038acb91eb3bfaa34dfd4729d19ed3f871a42;p=libs%2Fgltk.git

diff --git a/source/slider.h b/source/slider.h
index c88c15b..057b194 100644
--- a/source/slider.h
+++ b/source/slider.h
@@ -1,24 +1,92 @@
 #ifndef MSP_GLTK_SLIDER_H_
 #define MSP_GLTK_SLIDER_H_
 
+#include <sigc++/sigc++.h>
+#include "mspgltk_api.h"
 #include "widget.h"
 
 namespace Msp {
 namespace GLtk {
 
-class Slider: public Widget
+/**
+Sliders are used to adjust numeric values visually.  This class provides the
+common interface and logic for sliders but can't be instantiated.  Use HSlider
+or VSlider depending on which direction you want the slider to be in.
+*/
+class MSPGLTK_API Slider: public Widget
 {
+public:
+	class MSPGLTK_API Loader: public DataFile::DerivedObjectLoader<Slider, Widget::Loader>
+	{
+	public:
+		Loader(Slider &);
+	};
+
+protected:
+	enum Direction
+	{
+		HORIZONTAL,
+		VERTICAL
+	};
+
+public:
+	sigc::signal<void, double> signal_value_changed;
+
+protected:
+	Direction dir;
+	double min = 0.0;
+	double max = 1.0;
+	double value = 0.0;
+	double step = 0.1;
+	double page_size = 0.25;
+
+	bool dragging = false;
+	double drag_start_pos = 0.0;
+	double drag_start_value = 0.0;
+	unsigned drag_area_size = 0;
+	unsigned drag_area_offset = 0;
+	unsigned slider_min_size = 1;
+	unsigned slider_size = 1;
+	unsigned total_margin = 0;
+
+	Slider(Direction);
+
 public:
 	void set_value(double);
 	void set_range(double, double);
 	void set_step(double);
+	void set_page_size(double);
 	double get_value() const { return value; }
+
 protected:
-	double min, max;
-	double value;
-	double step;
+	void autosize_special(const Part &, Geometry &) const override;
+	void rebuild_special(const Part &) override;
+
+public:
+	void button_press(int, int, unsigned) override;
+	void button_release(int, int, unsigned) override;
+	void pointer_motion(int, int) override;
+
+protected:
+	void on_size_change() override;
+	void on_style_change() override;
+};
+
+
+class MSPGLTK_API VSlider: public Slider
+{
+public:
+	VSlider(): Slider(VERTICAL) { }
+
+	const char *get_class() const override { return "vslider"; }
+};
+
+class MSPGLTK_API HSlider: public Slider
+{
+public:
+	HSlider(): Slider(HORIZONTAL) { }
 
-	Slider(const Resourcres &);
+	const char *get_class() const override { return "hslider"; }
 };
 
 } // namespace GLtk