1 #ifndef __SP_COLOR_SLIDER_H__
2 #define __SP_COLOR_SLIDER_H__
4 /*
5 * A slider with colored background
6 *
7 * Author:
8 * Lauris Kaplinski <lauris@kaplinski.com>
9 *
10 * Copyright (C) 2001-2002 Lauris Kaplinski
11 *
12 * This code is in public domain
13 */
15 #include <gtk/gtkwidget.h>
17 #include <glib.h>
21 struct SPColorSlider;
22 struct SPColorSliderClass;
24 #define SP_TYPE_COLOR_SLIDER (sp_color_slider_get_type ())
25 #define SP_COLOR_SLIDER(o) (GTK_CHECK_CAST ((o), SP_TYPE_COLOR_SLIDER, SPColorSlider))
26 #define SP_COLOR_SLIDER_CLASS(k) (GTK_CHECK_CLASS_CAST ((k), SP_TYPE_COLOR_SLIDER, SPColorSliderClass))
27 #define SP_IS_COLOR_SLIDER(o) (GTK_CHECK_TYPE ((o), SP_TYPE_COLOR_SLIDER))
28 #define SP_IS_COLOR_SLIDER_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), SP_TYPE_COLOR_SLIDER))
30 struct SPColorSlider {
31 GtkWidget widget;
33 guint dragging : 1;
35 GtkAdjustment *adjustment;
37 gfloat value;
38 gfloat oldvalue;
39 guchar c0[4], cm[4], c1[4];
40 guchar b0, b1;
41 guchar bmask;
43 gint mapsize;
44 guchar *map;
45 };
47 struct SPColorSliderClass {
48 GtkWidgetClass parent_class;
50 void (* grabbed) (SPColorSlider *slider);
51 void (* dragged) (SPColorSlider *slider);
52 void (* released) (SPColorSlider *slider);
53 void (* changed) (SPColorSlider *slider);
54 };
56 GtkType sp_color_slider_get_type (void);
58 GtkWidget *sp_color_slider_new (GtkAdjustment *adjustment);
60 void sp_color_slider_set_adjustment (SPColorSlider *slider, GtkAdjustment *adjustment);
61 void sp_color_slider_set_colors (SPColorSlider *slider, guint32 start, guint32 mid, guint32 end);
62 void sp_color_slider_set_map (SPColorSlider *slider, const guchar *map);
63 void sp_color_slider_set_background (SPColorSlider *slider, guint dark, guint light, guint size);
67 #endif