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GtkSymbolicColor: Add method to resolve to a GdkColor.

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This commit is contained in:
Carlos Garnacho 2010-06-25 19:39:15 +02:00
parent e2b8efcbec
commit b8fb2d1a36
2 changed files with 71 additions and 0 deletions
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4
gtk/gtkstyleset.h
View File

@ -98,6 +98,10 @@ void gtk_style_set_merge (GtkStyleSet *set,
const GtkStyleSet *set_to_merge,
gboolean replace);
gboolean gtk_symbolic_color_resolve (GtkSymbolicColor *color,
GtkStyleSet *style_set,
GdkColor *resolved_color);
G_END_DECLS
#endif /* __GTK_STYLE_PROPERTY_SET_H__ */

67
gtk/gtksymboliccolor.c
View File

@ -136,6 +136,73 @@ gtk_symbolic_color_unref (GtkSymbolicColor *color)
color->ref_count--;
}
gboolean
gtk_symbolic_color_resolve (GtkSymbolicColor *color,
GtkStyleSet *style_set,
GdkColor *resolved_color)
{
g_return_val_if_fail (color != NULL, FALSE);
g_return_val_if_fail (GTK_IS_STYLE_SET (style_set), FALSE);
g_return_val_if_fail (resolved_color != NULL, FALSE);
switch (color->type)
{
case COLOR_TYPE_LITERAL:
*resolved_color = color->color;
return TRUE;
case COLOR_TYPE_NAME:
{
GtkSymbolicColor *named_color;
named_color = gtk_style_set_lookup_color (style_set, color->name);
if (!named_color)
return FALSE;
return gtk_symbolic_color_resolve (named_color, style_set, resolved_color);
}
break;
case COLOR_TYPE_SHADE:
{
GdkColor shade;
if (!gtk_symbolic_color_resolve (color->shade.color, style_set, &shade))
return FALSE;
resolved_color->red = CLAMP (shade.red * color->shade.factor, 0, 65535);
resolved_color->green = CLAMP (shade.green * color->shade.factor, 0, 65535);
resolved_color->blue = CLAMP (shade.blue * color->shade.factor, 0, 65535);
return TRUE;
}
break;
case COLOR_TYPE_MIX:
{
GdkColor color1, color2;
if (!gtk_symbolic_color_resolve (color->mix.color1, style_set, &color1))
return FALSE;
if (!gtk_symbolic_color_resolve (color->mix.color2, style_set, &color2))
return FALSE;
resolved_color->red = CLAMP (color1.red + ((color2.red - color1.red) * color->mix.factor), 0, 65535);
resolved_color->green = CLAMP (color1.green + ((color2.green - color1.green) * color->mix.factor), 0, 65535);
resolved_color->blue = CLAMP (color1.blue + ((color2.blue - color1.blue) * color->mix.factor), 0, 65535);
return TRUE;
}
break;
default:
g_assert_not_reached ();
}
return FALSE;
}
GType
gtk_symbolic_color_get_type (void)
{