[gnome-settings-daemon] Add brightness to the media-keys popup

[Bastien Nocera <hadess src gnome org>]

commit 7e4ce82e633725f601da244b351e5ee890bc80df
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Oct 26 17:00:22 2009 +0000

    Add brightness to the media-keys popup
    
    So that gnome-power-manager can copy/paste the files instead
    of forking our code.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=599677

 plugins/media-keys/Makefile.am             |    1 +
 plugins/media-keys/gsd-media-keys-window.c |   90 ++++++++++++++++++++++++++++
 plugins/media-keys/gsd-media-keys-window.h |    3 +-
 plugins/media-keys/test-media-window.c     |   27 ++++++++
 4 files changed, 120 insertions(+), 1 deletions(-)
---
diff --git a/plugins/media-keys/Makefile.am b/plugins/media-keys/Makefile.am
index 6be5a86..b662da8 100644
--- a/plugins/media-keys/Makefile.am
+++ b/plugins/media-keys/Makefile.am
@@ -79,6 +79,7 @@ test_media_window_SOURCES =			\
 test_media_window_CPPFLAGS = \
 	-I$(top_srcdir)/gnome-settings-daemon			\
 	-I$(top_srcdir)/plugins/media-keys/cut-n-paste		\
+	-DDATADIR=\""$(datadir)"\"				\
 	-DPIXMAPDIR=\""$(pkgdatadir)"\"				\
 	-DGTKBUILDERDIR=\""$(pkgdatadir)"\"			\
 	-DGNOME_SETTINGS_LOCALEDIR=\""$(datadir)/locale"\"	\
diff --git a/plugins/media-keys/gsd-media-keys-window.c b/plugins/media-keys/gsd-media-keys-window.c
index ec69598..e575c34 100644
--- a/plugins/media-keys/gsd-media-keys-window.c
+++ b/plugins/media-keys/gsd-media-keys-window.c
@@ -186,6 +186,10 @@ action_changed (GsdMediaKeysWindow *window)
                         volume_controls_set_visible (window, FALSE);
                         window_set_icon_name (window, "media-eject");
                         break;
+                case GSD_MEDIA_KEYS_WINDOW_ACTION_BRIGHTNESS:
+                        volume_controls_set_visible (window, TRUE);
+                        window_set_icon_name (window, "gpm-brightness-lcd");
+                        break;
                 default:
                         break;
                 }
@@ -773,6 +777,89 @@ draw_action_volume (GsdMediaKeysWindow *window,
                            volume_box_height);
 }
 
+static gboolean
+render_brightness (GsdMediaKeysWindow *window,
+                   cairo_t            *cr,
+                   double              x0,
+                   double              y0,
+                   double              width,
+                   double              height)
+{
+        GdkPixbuf         *pixbuf;
+        int                icon_size;
+
+        icon_size = (int)width;
+
+        pixbuf = load_pixbuf (window, "gpm-brightness-lcd", icon_size);
+
+        if (pixbuf == NULL) {
+                return FALSE;
+        }
+
+        gdk_cairo_set_source_pixbuf (cr, pixbuf, x0, y0);
+        cairo_paint_with_alpha (cr, FG_ALPHA);
+
+        g_object_unref (pixbuf);
+
+        return TRUE;
+}
+
+static void
+draw_action_brightness (GsdMediaKeysWindow *window,
+                        cairo_t            *cr)
+{
+        int window_width;
+        int window_height;
+        double icon_box_width;
+        double icon_box_height;
+        double icon_box_x0;
+        double icon_box_y0;
+        double bright_box_x0;
+        double bright_box_y0;
+        double bright_box_width;
+        double bright_box_height;
+        gboolean res;
+
+        gtk_window_get_size (GTK_WINDOW (window), &window_width, &window_height);
+
+        icon_box_width = round (window_width * 0.65);
+        icon_box_height = round (window_height * 0.65);
+        bright_box_width = round (icon_box_width);
+        bright_box_height = round (window_height * 0.05);
+
+        icon_box_x0 = (window_width - icon_box_width) / 2;
+        icon_box_y0 = (window_height - icon_box_height - bright_box_height) / 2;
+        bright_box_x0 = round (icon_box_x0);
+        bright_box_y0 = round (icon_box_height + icon_box_y0);
+
+#if 0
+        g_message ("icon box: w=%f h=%f x0=%f y0=%f",
+                   icon_box_width,
+                   icon_box_height,
+                   icon_box_x0,
+                   icon_box_y0);
+        g_message ("brightness box: w=%f h=%f x0=%f y0=%f",
+                   bright_box_width,
+                   bright_box_height,
+                   bright_box_x0,
+                   bright_box_y0);
+#endif
+
+        res = render_brightness (window,
+                                 cr,
+                                 icon_box_x0, icon_box_y0,
+                                 icon_box_width, icon_box_height);
+
+        /* draw volume meter */
+        draw_volume_boxes (window,
+                           cr,
+                           (double)window->priv->volume_level / 100.0,
+                           bright_box_x0,
+                           bright_box_y0,
+                           bright_box_width,
+                           bright_box_height);
+}
+
 static void
 draw_action (GsdMediaKeysWindow *window,
              cairo_t            *cr)
@@ -784,6 +871,9 @@ draw_action (GsdMediaKeysWindow *window,
         case GSD_MEDIA_KEYS_WINDOW_ACTION_EJECT:
                 draw_action_eject (window, cr);
                 break;
+        case GSD_MEDIA_KEYS_WINDOW_ACTION_BRIGHTNESS:
+                draw_action_brightness (window, cr);
+                break;
         default:
                 break;
         }
diff --git a/plugins/media-keys/gsd-media-keys-window.h b/plugins/media-keys/gsd-media-keys-window.h
index ad75923..dd4ae90 100644
--- a/plugins/media-keys/gsd-media-keys-window.h
+++ b/plugins/media-keys/gsd-media-keys-window.h
@@ -49,7 +49,8 @@ struct GsdMediaKeysWindowClass {
 
 typedef enum {
         GSD_MEDIA_KEYS_WINDOW_ACTION_VOLUME,
-        GSD_MEDIA_KEYS_WINDOW_ACTION_EJECT
+        GSD_MEDIA_KEYS_WINDOW_ACTION_EJECT,
+        GSD_MEDIA_KEYS_WINDOW_ACTION_BRIGHTNESS
 } GsdMediaKeysWindowAction;
 
 GType                 gsd_media_keys_window_get_type          (void);
diff --git a/plugins/media-keys/test-media-window.c b/plugins/media-keys/test-media-window.c
index a2a5ae1..503cbf3 100644
--- a/plugins/media-keys/test-media-window.c
+++ b/plugins/media-keys/test-media-window.c
@@ -67,6 +67,30 @@ update_state (GtkWidget *window)
 
                 gtk_widget_show (window);
                 break;
+        case 5:
+                gsd_media_keys_window_set_volume_level (GSD_MEDIA_KEYS_WINDOW (window),
+                                                        0);
+                gsd_media_keys_window_set_action (GSD_MEDIA_KEYS_WINDOW (window),
+                                                  GSD_MEDIA_KEYS_WINDOW_ACTION_BRIGHTNESS);
+
+                gtk_widget_show (window);
+                break;
+        case 6:
+                gsd_media_keys_window_set_volume_level (GSD_MEDIA_KEYS_WINDOW (window),
+                                                        50);
+                gsd_media_keys_window_set_action (GSD_MEDIA_KEYS_WINDOW (window),
+                                                  GSD_MEDIA_KEYS_WINDOW_ACTION_BRIGHTNESS);
+
+                gtk_widget_show (window);
+                break;
+        case 7:
+                gsd_media_keys_window_set_volume_level (GSD_MEDIA_KEYS_WINDOW (window),
+                                                        100);
+                gsd_media_keys_window_set_action (GSD_MEDIA_KEYS_WINDOW (window),
+                                                  GSD_MEDIA_KEYS_WINDOW_ACTION_BRIGHTNESS);
+
+                gtk_widget_show (window);
+                break;
         default:
                 gtk_main_quit ();
                 break;
@@ -113,6 +137,9 @@ main (int    argc,
                 exit (1);
         }
 
+        gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),
+                                           DATADIR G_DIR_SEPARATOR_S "gnome-power-manager" G_DIR_SEPARATOR_S "icons");
+
         test_window ();
 
         gtk_main ();