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Support background fallback on HiDPI

This change is a super hacky way of supporting the fallback desktop background (without caja) on HiDPI displays. It does this by doing two things: using a new function that scales up the background surface; and by loading settings using an updated function that triggers a redraw.
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vkareh authored and raveit65 committed Apr 10, 2018
1 parent e7bf4dc commit 4efc6a4a96a5b991585df27a473348df9c7aa191
Showing with 9 additions and 7 deletions.
  1. +9 −7 plugins/background/msd-background-manager.c
@@ -185,11 +185,12 @@ real_draw_bg (MsdBackgroundManager *manager,
{
MsdBackgroundManagerPrivate *p = manager->priv;
GdkWindow *window = gdk_screen_get_root_window (screen);
gint width = WidthOfScreen (gdk_x11_screen_get_xscreen (screen));
gint height = HeightOfScreen (gdk_x11_screen_get_xscreen (screen));
gint scale = gdk_window_get_scale_factor (window);
gint width = WidthOfScreen (gdk_x11_screen_get_xscreen (screen)) / scale;
gint height = HeightOfScreen (gdk_x11_screen_get_xscreen (screen)) / scale;

free_bg_surface (manager);
p->surface = mate_bg_create_surface (p->bg, window, width, height, TRUE);
p->surface = mate_bg_create_surface_scale (p->bg, window, width, height, scale, TRUE);

if (p->do_fade)
{
@@ -255,10 +256,12 @@ on_screen_size_changed (GdkScreen *screen,
if (!p->msd_can_draw || p->draw_in_progress || caja_is_drawing_bg (manager))
return;

GdkWindow *window = gdk_screen_get_root_window (screen);
gint scale = gdk_window_get_scale_factor (window);
gint scr_num = gdk_x11_screen_get_screen_number (screen);
gchar *old_size = g_list_nth_data (manager->priv->scr_sizes, scr_num);
gchar *new_size = g_strdup_printf ("%dx%d", WidthOfScreen (gdk_x11_screen_get_xscreen (screen)),
HeightOfScreen (gdk_x11_screen_get_xscreen (screen)));
gchar *new_size = g_strdup_printf ("%dx%d", WidthOfScreen (gdk_x11_screen_get_xscreen (screen)) / scale,
HeightOfScreen (gdk_x11_screen_get_xscreen (screen)) / scale);
if (g_strcmp0 (old_size, new_size) != 0)
{
g_debug ("Screen%d size changed: %s -> %s", scr_num, old_size, new_size);
@@ -297,8 +300,7 @@ settings_change_event_idle_cb (MsdBackgroundManager *manager)
{
mate_settings_profile_start ("settings_change_event_idle_cb");

mate_bg_load_from_gsettings (manager->priv->bg,
manager->priv->settings);
mate_bg_load_from_preferences (manager->priv->bg);

mate_settings_profile_end ("settings_change_event_idle_cb");

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