void
set_background_color (GdkRGBA color)
{
gdouble brightness;
if (game_area == NULL)
return;
/* While the two colours are labelled "light" and "dark" which one is
* which actually depends on how light or dark the base colour is. */
brightness = color.red + color.green + color.blue;
if (brightness > (1.0 / 1.1)) {
/* Darken light colours. */
light_background.red = 0.9 * color.red;
light_background.green = 0.9 * color.green;
light_background.blue = 0.9 * color.blue;
} else if (brightness > 0.04) { /* Lighten darker colours. */
light_background.red = 1.1 * color.red;
light_background.green = 1.1 * color.green;
light_background.blue = 1.1 * color.blue;
} else { /* Very dark colours, add rather than multiply. */
light_background.red += 0.04;
light_background.green += 0.04;
light_background.blue += 0.04;
}
light_background.alpha = 1.0;
dark_background = color;
clear_game_area ();
}
static void
bg_color_callback (GtkWidget * widget, gpointer data)
{
gtk_color_button_get_color (GTK_COLOR_BUTTON (widget),
&properties.bgcolour);
set_background_color (properties.bgcolour);
clear_game_area ();
conf_set_background_color (&properties.bgcolour);
}
static void
bg_color_callback (GtkWidget * widget, gpointer data)
{
gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (widget),
&properties.bgcolour);
set_background_color (properties.bgcolour);
clear_game_area ();
conf_set_background_color (&properties.bgcolour);
}
/**
* pmap_selection
* @widget: widget
* @data: callback data
*
* Description:
* handles pixmap selection messages
**/
static void
pmap_selection (GtkWidget * widget, gpointer data)
{
gint n;
n = gtk_combo_box_get_active (GTK_COMBO_BOX (widget));
/* FIXME: Should be de-suffixed. */
properties.themename = games_file_list_get_nth (theme_list, n);
conf_set_theme (properties.themename);
set_game_graphics (properties.themename);
clear_game_area ();
}
void
set_background_color (GdkColor color)
{
GdkColormap *colormap;
guint32 brightness;
GdkColor color2;
if (game_area == NULL)
return;
if (dark_bggc == NULL) {
dark_bggc = gdk_gc_new (game_area->window);
gdk_gc_copy (dark_bggc, game_area->style->black_gc);
light_bggc = gdk_gc_new (game_area->window);
gdk_gc_copy (light_bggc, game_area->style->white_gc);
}
/* While the two colours are labelled "light" and "dark" which one is
* which actually depends on how light or dark the base colour is. */
brightness = color.red + color.green + color.blue;
if (brightness > 0xe8ba) { /* 0xe8ba = 0x10000/1.1 */
/* Darken light colours. */
color2.red = 0.9 * color.red;
color2.green = 0.9 * color.green;
color2.blue = 0.9 * color.blue;
} else if (brightness > 0xa00) { /* Lighten darker colours. */
color2.red = 1.1 * color.red;
color2.green = 1.1 * color.green;
color2.blue = 1.1 * color.blue;
} else { /* Very dark colours, add ratehr than multiply. */
color2.red += 0xa00;
color2.green += 0xa00;
color2.blue += 0xa00;
}
colormap = gtk_widget_get_colormap (game_area);
gdk_colormap_alloc_color (colormap, &color, FALSE, TRUE);
gdk_gc_set_foreground (dark_bggc, &color);
gdk_colormap_alloc_color (colormap, &color2, FALSE, TRUE);
gdk_gc_set_foreground (light_bggc, &color2);
clear_game_area ();
}
