4 color_changed (GObject *o, GParamSpec *pspect, gpointer data)
8 gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (o), &color);
9 g_print ("color changed: %g %g %g %g\n",
10 color.red, color.green, color.blue, color.alpha);
14 dialog_response (GtkDialog *dialog, gint response)
21 gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (dialog), &color);
22 g_print ("color accepted: %g %g %g %g\n",
23 color.red, color.green, color.blue, color.alpha);
26 g_print ("canceled\n");
34 main (int argc, char *argv[])
39 gtk_init (NULL, NULL);
41 dialog = gtk_color_chooser_dialog_new ("Select a color", NULL);
43 for (i = 1; i < argc; i++)
45 if (g_strcmp0 (argv[i], "--no-alpha") == 0)
47 g_print ("turning alpha off\n");
48 gtk_color_chooser_set_use_alpha (GTK_COLOR_CHOOSER (dialog), FALSE);
50 else if (g_strcmp0 (argv[i], "--edit") == 0)
52 g_print ("starting in edit mode\n");
53 g_object_set (dialog, "show-editor", TRUE, NULL);
55 else if (g_strcmp0 (argv[i], "--palette") == 0)
57 const gchar *c[9] = { "red", "maroon", "yellow", "green", "blue", "magenta", "DarkOliveGreen4", "khaki2", "thistle1" };
61 gdouble f[5] = { 0.2, 0.35, 0.5, 0.65, 0.8 };
63 g_print ("setting custom palette\n");
64 for (i = 0; i < 9; i++)
66 gdk_rgba_parse (&color, c[i]);
67 for (j = 0; j < 5; j++)
69 colors[i*9 + j].red = f[j]*color.red;
70 colors[i*9 + j].green = f[j]*color.green;
71 colors[i*9 + j].blue = f[j]*color.blue;
72 colors[i*9 + j].alpha = 1;
74 for (j = 5; j < 9; j++)
76 colors[i*9 + j].red = f[9-j]*color.red + (1-f[9-j]);
77 colors[i*9 + j].green = f[9-j]*color.green + (1-f[9-j]);
78 colors[i*9 + j].blue = f[9-j]*color.blue + (1-f[9-j]);
79 colors[i*9 + j].alpha = 1;
82 gtk_color_chooser_add_palette (GTK_COLOR_CHOOSER (dialog),
83 GTK_ORIENTATION_VERTICAL,
87 else if (g_strcmp0 (argv[i], "--no-palette") == 0)
89 gtk_color_chooser_add_palette (GTK_COLOR_CHOOSER (dialog),
90 GTK_ORIENTATION_VERTICAL, 0, 0, NULL);
94 g_signal_connect (dialog, "notify::color", G_CALLBACK (color_changed), NULL);
95 g_signal_connect (dialog, "response", G_CALLBACK (dialog_response), NULL);
97 gtk_widget_show_all (dialog);