1 #ifndef __SP_COLOR_SELECTOR_H__
2 #define __SP_COLOR_SELECTOR_H__
4 #include <gtk/gtkvbox.h>
5 #include "../color.h"
7 #include <glib.h>
12 struct SPColorSelector;
14 class ColorSelector
15 {
16 public:
17 ColorSelector( SPColorSelector* csel );
18 virtual ~ColorSelector();
20 virtual void init();
22 void setColor( const SPColor& color );
23 SPColor getColor() const;
25 void setAlpha( gfloat alpha );
26 gfloat getAlpha() const;
28 void setColorAlpha( const SPColor& color, gfloat alpha, bool emit = false );
29 void getColorAlpha( SPColor& color, gfloat* alpha ) const;
31 virtual void setSubmode( guint submode );
32 virtual guint getSubmode() const;
34 virtual SPColorSpaceType getColorspace() const;
35 virtual gboolean setColorspace( SPColorSpaceType colorspace );
37 protected:
38 void _grabbed();
39 void _released();
40 void _updateInternals( const SPColor& color, gfloat alpha, gboolean held );
41 gboolean _isHeld() const { return _held; }
43 virtual void _colorChanged( const SPColor& color, gfloat alpha );
45 static double _epsilon;
47 SPColorSelector* _csel;
48 SPColor _color;
49 gfloat _alpha; /* guaranteed to be in [0, 1]. */
51 private:
52 // By default, disallow copy constructor and assignment operator
53 ColorSelector( const ColorSelector& obj );
54 ColorSelector& operator=( const ColorSelector& obj );
56 gboolean _held;
58 bool virgin; // if true, no color is set yet
59 };
63 #define SP_TYPE_COLOR_SELECTOR (sp_color_selector_get_type ())
64 #define SP_COLOR_SELECTOR(o) (GTK_CHECK_CAST ((o), SP_TYPE_COLOR_SELECTOR, SPColorSelector))
65 #define SP_COLOR_SELECTOR_CLASS(k) (GTK_CHECK_CLASS_CAST ((k), SP_TYPE_COLOR_SELECTOR, SPColorSelectorClass))
66 #define SP_IS_COLOR_SELECTOR(o) (GTK_CHECK_TYPE ((o), SP_TYPE_COLOR_SELECTOR))
67 #define SP_IS_COLOR_SELECTOR_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), SP_TYPE_COLOR_SELECTOR))
68 #define SP_COLOR_SELECTOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), SP_TYPE_COLOR_SELECTOR, SPColorSelectorClass))
70 struct SPColorSelector {
71 GtkVBox vbox;
73 ColorSelector* base;
74 };
76 struct SPColorSelectorClass {
77 GtkVBoxClass parent_class;
79 const gchar **name;
80 guint submode_count;
82 void (* grabbed) (SPColorSelector *rgbsel);
83 void (* dragged) (SPColorSelector *rgbsel);
84 void (* released) (SPColorSelector *rgbsel);
85 void (* changed) (SPColorSelector *rgbsel);
87 };
89 GType sp_color_selector_get_type (void);
91 GtkWidget *sp_color_selector_new (GType selector_type, SPColorSpaceType colorspace);
95 #endif