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/*
* gdkscreen.c
*
* Copyright 2001 Sun Microsystems Inc.
*
* Erwann Chenede <erwann.chenede@sun.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gdk.h" /* For gdk_rectangle_intersect() */
#include "gdkcolor.h"
#include "gdkinternals.h"
#include "gdkwindow.h"
#include "gdkscreen.h"
static void gdk_screen_class_init (GdkScreenClass *klass);
enum
{
SIZE_CHANGED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
GType
gdk_screen_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (GdkScreenClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_screen_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkScreen),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static (G_TYPE_OBJECT,
"GdkScreen", &object_info, 0);
}
return object_type;
}
static void
gdk_screen_class_init (GdkScreenClass *klass)
{
signals[SIZE_CHANGED] =
g_signal_new ("size_changed",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GdkScreenClass, size_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE,
0);
}
void
_gdk_screen_close (GdkScreen *screen)
{
g_return_if_fail (GDK_IS_SCREEN (screen));
if (!screen->closed)
{
screen->closed = TRUE;
g_object_run_dispose (G_OBJECT (screen));
}
}
/**
* gdk_screen_get_monitor_at_point:
* @screen : a #GdkScreen.
* @x : the x coordinate in the virtual screen.
* @y : the y coordinate in the virtual screen.
*
* Returns the monitor number in which the point (@x,@y) is located.
*
* Returns: the monitor number in which the point (@x,@y) belong, or
* -1 if the point is not in any monitor.
**/
gint
gdk_screen_get_monitor_at_point (GdkScreen *screen,
gint x,
gint y)
{
gint num_monitors, i;
g_return_val_if_fail (GDK_IS_SCREEN (screen), -1);
num_monitors = gdk_screen_get_n_monitors (screen);
for (i=0;i<num_monitors;i++)
{
GdkRectangle monitor;
gdk_screen_get_monitor_geometry (screen, i, &monitor);
if (x >= monitor.x &&
x < monitor.x + monitor.width &&
y >= monitor.y &&
y < (monitor.y + monitor.height))
return i;
}
return -1;
}
/**
* gdk_screen_get_monitor_at_window:
* @screen: a #GdkScreen.
* @window: a #GdkWindow
* @returns: the monitor number in which most of @window is located.
*
* Returns the number of the monitor in which the largest area of the bounding rectangle
* of @window resides.
**/
gint
gdk_screen_get_monitor_at_window (GdkScreen *screen,
GdkWindow *window)
{
gint num_monitors, i, sum = 0, screen_num = 0;
GdkRectangle win_rect;
g_return_val_if_fail (GDK_IS_SCREEN (screen), -1);
gdk_window_get_geometry (window, &win_rect.x, &win_rect.y, &win_rect.width,
&win_rect.height, NULL);
gdk_window_get_origin (window, &win_rect.x, &win_rect.y);
num_monitors = gdk_screen_get_n_monitors (screen);
for (i=0;i<num_monitors;i++)
{
GdkRectangle tmp_monitor, intersect;
gdk_screen_get_monitor_geometry (screen, i, &tmp_monitor);
gdk_rectangle_intersect (&win_rect, &tmp_monitor, &intersect);
if (intersect.width * intersect.height > sum)
{
sum = intersect.width * intersect.height;
screen_num = i;
}
}
return screen_num;
}
/**
* gdk_screen_width:
*
* Returns the width of the default screen in pixels.
*
* Return value: the width of the default screen in pixels.
**/
gint
gdk_screen_width (void)
{
return gdk_screen_get_width (gdk_screen_get_default());
}
/**
* gdk_screen_height:
*
* Returns the height of the default screen in pixels.
*
* Return value: the height of the default screen in pixels.
**/
gint
gdk_screen_height (void)
{
return gdk_screen_get_height (gdk_screen_get_default());
}
/**
* gdk_screen_width_mm:
*
* Returns the width of the default screen in millimeters.
* Note that on many X servers this value will not be correct.
*
* Return value: the width of the default screen in millimeters,
* though it is not always correct.
**/
gint
gdk_screen_width_mm (void)
{
return gdk_screen_get_width_mm (gdk_screen_get_default());
}
/**
* gdk_screen_height_mm:
*
* Returns the height of the default screen in millimeters.
* Note that on many X servers this value will not be correct.
*
* Return value: the height of the default screen in millimeters,
* though it is not always correct.
**/
gint
gdk_screen_height_mm (void)
{
return gdk_screen_get_height_mm (gdk_screen_get_default ());
}
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