1 #ifndef SEEN_SP_COLOR_SELECTOR_H
2 #define SEEN_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 protected:
35 void _grabbed();
36 void _released();
37 void _updateInternals( const SPColor& color, gfloat alpha, gboolean held );
38 gboolean _isHeld() const { return _held; }
40 virtual void _colorChanged();
42 static double _epsilon;
44 SPColorSelector* _csel;
45 SPColor _color;
46 gfloat _alpha; // guaranteed to be in [0, 1].
48 private:
49 // By default, disallow copy constructor and assignment operator
50 ColorSelector( const ColorSelector& obj );
51 ColorSelector& operator=( const ColorSelector& obj );
53 gboolean _held;
55 bool virgin; // if true, no color is set yet
56 };
60 #define SP_TYPE_COLOR_SELECTOR (sp_color_selector_get_type ())
61 #define SP_COLOR_SELECTOR(o) (GTK_CHECK_CAST ((o), SP_TYPE_COLOR_SELECTOR, SPColorSelector))
62 #define SP_COLOR_SELECTOR_CLASS(k) (GTK_CHECK_CLASS_CAST ((k), SP_TYPE_COLOR_SELECTOR, SPColorSelectorClass))
63 #define SP_IS_COLOR_SELECTOR(o) (GTK_CHECK_TYPE ((o), SP_TYPE_COLOR_SELECTOR))
64 #define SP_IS_COLOR_SELECTOR_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), SP_TYPE_COLOR_SELECTOR))
65 #define SP_COLOR_SELECTOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), SP_TYPE_COLOR_SELECTOR, SPColorSelectorClass))
67 struct SPColorSelector {
68 GtkVBox vbox;
70 ColorSelector* base;
71 };
73 struct SPColorSelectorClass {
74 GtkVBoxClass parent_class;
76 const gchar **name;
77 guint submode_count;
79 void (* grabbed) (SPColorSelector *rgbsel);
80 void (* dragged) (SPColorSelector *rgbsel);
81 void (* released) (SPColorSelector *rgbsel);
82 void (* changed) (SPColorSelector *rgbsel);
83 };
85 GType sp_color_selector_get_type(void);
87 GtkWidget *sp_color_selector_new( GType selector_type );
91 #endif // SEEN_SP_COLOR_SELECTOR_H
93 /*
94 Local Variables:
95 mode:c++
96 c-file-style:"stroustrup"
97 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
98 indent-tabs-mode:nil
99 fill-column:99
100 End:
101 */
102 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :