static void
update_display_preview (CcBackgroundPanel *panel,
GtkWidget *widget,
CcBackgroundItem *current_background)
{
CcBackgroundPanelPrivate *priv = panel->priv;
GtkAllocation allocation;
const gint preview_width = 309;
const gint preview_height = 168;
gint scale_factor;
GdkPixbuf *pixbuf;
cairo_t *cr;
gtk_widget_get_allocation (widget, &allocation);
if (!current_background)
return;
scale_factor = gtk_widget_get_scale_factor (widget);
pixbuf = cc_background_item_get_frame_thumbnail (current_background,
priv->thumb_factory,
preview_width,
preview_height,
scale_factor,
-2, TRUE);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_set_source_pixbuf (cr,
pixbuf,
0, 0);
cairo_paint (cr);
g_object_unref (pixbuf);
pixbuf = NULL;
if (current_background == priv->current_background &&
panel->priv->display_screenshot != NULL)
{
pixbuf = gdk_pixbuf_scale_simple (panel->priv->display_screenshot,
preview_width,
preview_height,
GDK_INTERP_BILINEAR);
}
if (pixbuf)
{
gdk_cairo_set_source_pixbuf (cr,
pixbuf,
0, 0);
cairo_paint (cr);
g_object_unref (pixbuf);
}
cairo_destroy (cr);
}
static void
update_display_preview (CcBackgroundPanel *panel)
{
CcBackgroundPanelPrivate *priv = panel->priv;
GtkWidget *widget;
GtkAllocation allocation;
const gint preview_width = 416;
const gint preview_height = 248;
GdkPixbuf *pixbuf;
GIcon *icon;
cairo_t *cr;
widget = WID ("background-desktop-drawingarea");
gtk_widget_get_allocation (widget, &allocation);
if (!priv->current_background)
return;
icon = cc_background_item_get_frame_thumbnail (priv->current_background,
priv->thumb_factory,
preview_width,
preview_height,
-2, TRUE);
pixbuf = GDK_PIXBUF (icon);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_set_source_pixbuf (cr,
pixbuf,
0, 0);
cairo_paint (cr);
g_object_unref (pixbuf);
pixbuf = NULL;
if (panel->priv->display_screenshot != NULL)
pixbuf = gdk_pixbuf_scale_simple (panel->priv->display_screenshot,
preview_width,
preview_height,
GDK_INTERP_BILINEAR);
if (pixbuf)
{
gdk_cairo_set_source_pixbuf (cr,
pixbuf,
0, 0);
cairo_paint (cr);
}
cairo_destroy (cr);
}
static gboolean
preview_draw_cb (GtkWidget *widget,
cairo_t *cr,
CcBackgroundPanel *panel)
{
GtkAllocation allocation;
CcBackgroundPanelPrivate *priv = panel->priv;
GdkPixbuf *pixbuf = NULL;
const gint preview_width = 416;
const gint preview_height = 248;
const gint preview_x = 45;
const gint preview_y = 84;
GdkPixbuf *preview, *temp;
gint size;
gtk_widget_get_allocation (widget, &allocation);
if (priv->current_background)
{
GIcon *icon;
icon = cc_background_item_get_frame_thumbnail (priv->current_background,
priv->thumb_factory,
preview_width,
preview_height,
-2, TRUE);
pixbuf = GDK_PIXBUF (icon);
}
if (!priv->display_base)
return FALSE;
preview = gdk_pixbuf_copy (priv->display_base);
if (pixbuf)
{
gdk_pixbuf_composite (pixbuf, preview,
preview_x, preview_y,
preview_width, preview_height,
preview_x, preview_y, 1, 1,
GDK_INTERP_BILINEAR, 255);
g_object_unref (pixbuf);
}
if (priv->display_overlay)
{
gdk_pixbuf_composite (priv->display_overlay, preview,
0, 0, 512, 512,
0, 0, 1, 1,
GDK_INTERP_BILINEAR, 255);
}
if (allocation.width < allocation.height)
size = allocation.width;
else
size = allocation.height;
temp = gdk_pixbuf_scale_simple (preview, size, size, GDK_INTERP_BILINEAR);
gdk_cairo_set_source_pixbuf (cr,
temp,
allocation.width / 2 - (size / 2),
allocation.height / 2 - (size / 2));
cairo_paint (cr);
g_object_unref (temp);
g_object_unref (preview);
return TRUE;
}
