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#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <glib/gstdio.h>
#include <gtk/gtk.h>
#include "monitor-background.h"
G_DEFINE_TYPE (MonitorBackground, monitor_background, G_TYPE_OBJECT)
enum {
INVALIDATED,
N_SIGNALS
};
static guint signals[N_SIGNALS] = { 0 };
static void
invalidate_mb (MonitorBackground *mb)
{
mb->valid = FALSE;
g_signal_emit (mb, signals[INVALIDATED], 0);
}
static void
on_gdk_monitor_dispose (gpointer data,
GObject *monitor)
{
MonitorBackground *mb = MONITOR_BACKGROUND (data);
invalidate_mb (mb);
}
static void
on_gdk_monitor_invalidate (gpointer data)
{
MonitorBackground *mb = MONITOR_BACKGROUND (data);
invalidate_mb (mb);
}
static void
on_window_realized (GtkWidget *widget,
gpointer user_data)
{
MonitorBackground *mb = MONITOR_BACKGROUND (user_data);
GdkRectangle geometry;
gdk_monitor_get_geometry (mb->monitor, &geometry);
gdk_window_move (gtk_widget_get_window (widget), geometry.x, geometry.y);
}
static void
build_monitor_background (MonitorBackground *mb)
{
GdkRectangle geometry;
mb->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_type_hint (GTK_WINDOW (mb->window), GDK_WINDOW_TYPE_HINT_DESKTOP);
// Set keep below so muffin recognizes the backgrounds and keeps them
// at the bottom of the bottom window layer (under file managers, etc..)
gtk_window_set_keep_below (GTK_WINDOW (mb->window), TRUE);
mb->stack = gtk_stack_new ();
g_object_set (mb->stack,
"transition-duration", 500,
"transition-type", GTK_STACK_TRANSITION_TYPE_CROSSFADE,
NULL);
gtk_container_add (GTK_CONTAINER (mb->window), mb->stack);
gdk_monitor_get_geometry (mb->monitor, &geometry);
mb->width = geometry.width;
mb->height = geometry.height;
gtk_window_set_default_size (GTK_WINDOW (mb->window), geometry.width, geometry.height);
g_signal_connect (mb->window, "realize", G_CALLBACK (on_window_realized), mb);
gtk_widget_show_all (mb->window);
}
static void
monitor_background_init (MonitorBackground *mb)
{
mb->valid = TRUE;
}
static void
monitor_background_dispose (GObject *object)
{
g_debug ("MonitorBackground dispose (%p)", object);
G_OBJECT_CLASS (monitor_background_parent_class)->dispose (object);
}
static void
monitor_background_finalize (GObject *object)
{
g_debug ("MonitorBackground finalize (%p)", object);
// MonitorBackground *mb = MONITOR_BACKGROUND (object);
G_OBJECT_CLASS (monitor_background_parent_class)->finalize (object);
}
static void
monitor_background_class_init (MonitorBackgroundClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose = monitor_background_dispose;
gobject_class->finalize = monitor_background_finalize;
signals[INVALIDATED] = g_signal_new ("invalidated",
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
MonitorBackground *
monitor_background_new (gint index, GdkMonitor *monitor)
{
MonitorBackground *mb = g_object_new (monitor_background_get_type (), NULL);
mb->monitor_index = index;
mb->monitor = monitor;
g_object_weak_ref (G_OBJECT (monitor), (GWeakNotify) on_gdk_monitor_dispose, mb);
g_signal_connect_swapped (monitor, "invalidate", G_CALLBACK (on_gdk_monitor_invalidate), mb);
build_monitor_background (mb);
return mb;
}
GtkImage *
monitor_background_get_pending_image (MonitorBackground *mb)
{
if (!mb->valid)
{
g_warning ("Asked for pending image when monitor is no longer valid");
return NULL;
}
if (!mb->pending)
{
mb->pending = gtk_image_new ();
gtk_container_add (GTK_CONTAINER (mb->stack), mb->pending);
gtk_widget_show (mb->pending);
}
return GTK_IMAGE (g_object_ref (mb->pending));
}
void
monitor_background_show_next_image (MonitorBackground *mb)
{
g_return_if_fail (mb->pending != NULL);
if (!mb->valid)
{
g_warning ("Asked for pending image when monitor is no longer valid");
return;
}
GtkWidget *tmp;
tmp = mb->current;
mb->current = mb->pending;
mb->pending = tmp;
gtk_stack_set_visible_child (GTK_STACK (mb->stack), mb->current);
}
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