* Boston, MA 02111-1307, USA.
*/
+#include "config.h"
#include "gdk.h" /* For gdk_rectangle_intersect() */
#include "gdkcolor.h"
-#include "gdkinternals.h"
#include "gdkwindow.h"
#include "gdkscreen.h"
+#include "gdkintl.h"
+#include "gdkalias.h"
-GType
-gdk_screen_get_type (void)
+static void gdk_screen_dispose (GObject *object);
+static void gdk_screen_finalize (GObject *object);
+static void gdk_screen_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gdk_screen_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+enum
+{
+ PROP_0,
+ PROP_FONT_OPTIONS,
+ PROP_RESOLUTION
+};
+
+enum
+{
+ SIZE_CHANGED,
+ COMPOSITED_CHANGED,
+ MONITORS_CHANGED,
+ LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+G_DEFINE_TYPE (GdkScreen, gdk_screen, G_TYPE_OBJECT)
+
+static void
+gdk_screen_class_init (GdkScreenClass *klass)
{
- static GType object_type = 0;
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
- if (!object_type)
+ object_class->dispose = gdk_screen_dispose;
+ object_class->finalize = gdk_screen_finalize;
+ object_class->set_property = gdk_screen_set_property;
+ object_class->get_property = gdk_screen_get_property;
+
+ g_object_class_install_property (object_class,
+ PROP_FONT_OPTIONS,
+ g_param_spec_pointer ("font-options",
+ P_("Font options"),
+ P_("The default font options for the screen"),
+ G_PARAM_READWRITE|G_PARAM_STATIC_NAME|
+ G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB));
+
+ g_object_class_install_property (object_class,
+ PROP_RESOLUTION,
+ g_param_spec_double ("resolution",
+ P_("Font resolution"),
+ P_("The resolution for fonts on the screen"),
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ -1.0,
+ G_PARAM_READWRITE|G_PARAM_STATIC_NAME|
+ G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB));
+
+ /**
+ * GdkScreen::size-changed:
+ * @screen: the object on which the signal is emitted
+ *
+ * The ::size-changed signal is emitted when the pixel width or
+ * height of a screen changes.
+ *
+ * Since: 2.2
+ */
+ signals[SIZE_CHANGED] =
+ g_signal_new (g_intern_static_string ("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);
+
+ /**
+ * GdkScreen::composited-changed:
+ * @screen: the object on which the signal is emitted
+ *
+ * The ::composited-changed signal is emitted when the composited
+ * status of the screen changes
+ *
+ * Since: 2.10
+ */
+ signals[COMPOSITED_CHANGED] =
+ g_signal_new (g_intern_static_string ("composited-changed"),
+ G_OBJECT_CLASS_TYPE (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GdkScreenClass, composited_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE,
+ 0);
+
+ /**
+ * GdkScreen::monitors-changed:
+ * @screen: the object on which the signal is emitted
+ *
+ * The ::monitors-changed signal is emitted when the number, size
+ * or position of the monitors attached to the screen change.
+ *
+ * Only for X11 and OS X for now. A future implementation for Win32
+ * may be a possibility.
+ *
+ * Since: 2.14
+ */
+ signals[MONITORS_CHANGED] =
+ g_signal_new (g_intern_static_string ("monitors-changed"),
+ G_OBJECT_CLASS_TYPE (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GdkScreenClass, monitors_changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE,
+ 0);
+}
+
+static void
+gdk_screen_init (GdkScreen *screen)
+{
+ screen->resolution = -1.;
+}
+
+static void
+gdk_screen_dispose (GObject *object)
+{
+ GdkScreen *screen = GDK_SCREEN (object);
+ gint i;
+
+ for (i = 0; i < 32; ++i)
{
- static const GTypeInfo object_info =
- {
- sizeof (GdkScreenClass),
- (GBaseInitFunc) NULL,
- (GBaseFinalizeFunc) NULL,
- NULL, /* 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);
+ if (screen->exposure_gcs[i])
+ {
+ g_object_unref (screen->exposure_gcs[i]);
+ screen->exposure_gcs[i] = NULL;
+ }
+
+ if (screen->normal_gcs[i])
+ {
+ g_object_unref (screen->normal_gcs[i]);
+ screen->normal_gcs[i] = NULL;
+ }
}
- return object_type;
+ G_OBJECT_CLASS (gdk_screen_parent_class)->dispose (object);
+}
+
+static void
+gdk_screen_finalize (GObject *object)
+{
+ GdkScreen *screen = GDK_SCREEN (object);
+
+ if (screen->font_options)
+ cairo_font_options_destroy (screen->font_options);
+
+ G_OBJECT_CLASS (gdk_screen_parent_class)->finalize (object);
}
void
}
}
+/* Fallback used when the monitor "at" a point or window
+ * doesn't exist.
+ */
+static gint
+get_nearest_monitor (GdkScreen *screen,
+ gint x,
+ gint y)
+{
+ gint num_monitors, i;
+ gint nearest_dist = G_MAXINT;
+ gint nearest_monitor = 0;
+
+ 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;
+ gint dist_x, dist_y, dist;
+
+ gdk_screen_get_monitor_geometry (screen, i, &monitor);
+
+ if (x < monitor.x)
+ dist_x = monitor.x - x;
+ else if (x >= monitor.x + monitor.width)
+ dist_x = x - (monitor.x + monitor.width) + 1;
+ else
+ dist_x = 0;
+
+ if (y < monitor.y)
+ dist_y = monitor.y - y;
+ else if (y >= monitor.y + monitor.height)
+ dist_y = y - (monitor.y + monitor.height) + 1;
+ else
+ dist_y = 0;
+
+ dist = dist_x + dist_y;
+ if (dist < nearest_dist)
+ {
+ nearest_dist = dist;
+ nearest_monitor = i;
+ }
+ }
+
+ return nearest_monitor;
+}
+
/**
* 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.
+ * @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.
+ * Returns: the monitor number in which the point (@x,@y) lies, or
+ * a monitor close to (@x,@y) if the point is not in any monitor.
+ *
+ * Since: 2.2
**/
gint
gdk_screen_get_monitor_at_point (GdkScreen *screen,
return i;
}
- return -1;
+ return get_nearest_monitor (screen, x, y);
}
/**
* 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 monitor number in which most of @window is located,
+ * or if @window does not intersect any monitors, a monitor,
+ * close to @window.
+ *
+ * Returns the number of the monitor in which the largest area of the
+ * bounding rectangle of @window resides.
*
- * Returns the number of the monitor in which the largest area of the bounding rectangle
- * of @window resides.
+ * Since: 2.2
**/
gint
gdk_screen_get_monitor_at_window (GdkScreen *screen,
GdkWindow *window)
{
- gint num_monitors, i, sum = 0, screen_num = 0;
+ gint num_monitors, i, area = 0, screen_num = -1;
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);
gdk_screen_get_monitor_geometry (screen, i, &tmp_monitor);
gdk_rectangle_intersect (&win_rect, &tmp_monitor, &intersect);
- if (intersect.width * intersect.height > sum)
+ if (intersect.width * intersect.height > area)
{
- sum = intersect.width * intersect.height;
+ area = intersect.width * intersect.height;
screen_num = i;
}
}
- return screen_num;
+ if (screen_num >= 0)
+ return screen_num;
+ else
+ return get_nearest_monitor (screen,
+ win_rect.x + win_rect.width / 2,
+ win_rect.y + win_rect.height / 2);
}
/**
*
* Returns the width of the default screen in pixels.
*
- * Return value: 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());
+ return gdk_screen_get_width (gdk_screen_get_default ());
}
/**
gint
gdk_screen_height (void)
{
- return gdk_screen_get_height (gdk_screen_get_default());
+ return gdk_screen_get_height (gdk_screen_get_default ());
}
/**
gint
gdk_screen_width_mm (void)
{
- return gdk_screen_get_width_mm (gdk_screen_get_default());
+ return gdk_screen_get_width_mm (gdk_screen_get_default ());
}
/**
}
/**
- * gdk_screen_get_window_at_pointer:
+ * gdk_screen_set_font_options:
+ * @screen: a #GdkScreen
+ * @options: (allow-none): a #cairo_font_options_t, or %NULL to unset any
+ * previously set default font options.
+ *
+ * Sets the default font options for the screen. These
+ * options will be set on any #PangoContext's newly created
+ * with gdk_pango_context_get_for_screen(). Changing the
+ * default set of font options does not affect contexts that
+ * have already been created.
+ *
+ * Since: 2.10
+ **/
+void
+gdk_screen_set_font_options (GdkScreen *screen,
+ const cairo_font_options_t *options)
+{
+ g_return_if_fail (GDK_IS_SCREEN (screen));
+
+ if (screen->font_options != options)
+ {
+ if (screen->font_options)
+ cairo_font_options_destroy (screen->font_options);
+
+ if (options)
+ screen->font_options = cairo_font_options_copy (options);
+ else
+ screen->font_options = NULL;
+
+ g_object_notify (G_OBJECT (screen), "font-options");
+ }
+}
+
+/**
+ * gdk_screen_get_font_options:
+ * @screen: a #GdkScreen
+ *
+ * Gets any options previously set with gdk_screen_set_font_options().
+ *
+ * Return value: the current font options, or %NULL if no default
+ * font options have been set.
+ *
+ * Since: 2.10
+ **/
+const cairo_font_options_t *
+gdk_screen_get_font_options (GdkScreen *screen)
+{
+ g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
+
+ return screen->font_options;
+}
+
+/**
+ * gdk_screen_set_resolution:
+ * @screen: a #GdkScreen
+ * @dpi: the resolution in "dots per inch". (Physical inches aren't actually
+ * involved; the terminology is conventional.)
+
+ * Sets the resolution for font handling on the screen. This is a
+ * scale factor between points specified in a #PangoFontDescription
+ * and cairo units. The default value is 96, meaning that a 10 point
+ * font will be 13 units high. (10 * 96. / 72. = 13.3).
+ *
+ * Since: 2.10
+ **/
+void
+gdk_screen_set_resolution (GdkScreen *screen,
+ gdouble dpi)
+{
+ g_return_if_fail (GDK_IS_SCREEN (screen));
+
+ if (dpi < 0)
+ dpi = -1.0;
+
+ if (screen->resolution != dpi)
+ {
+ screen->resolution = dpi;
+
+ g_object_notify (G_OBJECT (screen), "resolution");
+ }
+}
+
+/**
+ * gdk_screen_get_resolution:
* @screen: a #GdkScreen
- * @win_x: return location for origin of the window under the pointer
- * @win_y: return location for origin of the window under the pointer
*
- * Obtains the window underneath the mouse pointer, returning the location
- * of that window in @win_x, @win_y for @screen. Returns %NULL if the window
- * under the mouse pointer is not known to GDK (for example, belongs to
- * another application).
+ * Gets the resolution for font handling on the screen; see
+ * gdk_screen_set_resolution() for full details.
*
- * Returns: the window under the mouse pointer, or %NULL
+ * Return value: the current resolution, or -1 if no resolution
+ * has been set.
+ *
+ * Since: 2.10
**/
-GdkWindow *
-gdk_screen_get_window_at_pointer (GdkScreen *screen,
- gint *win_x,
- gint *win_y)
+gdouble
+gdk_screen_get_resolution (GdkScreen *screen)
+{
+ g_return_val_if_fail (GDK_IS_SCREEN (screen), -1.0);
+
+ return screen->resolution;
+}
+
+static void
+gdk_screen_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
{
- return _gdk_current_pointer_hooks->window_at_pointer (screen, win_x, win_y);
+ GdkScreen *screen = GDK_SCREEN (object);
+
+ switch (prop_id)
+ {
+ case PROP_FONT_OPTIONS:
+ g_value_set_pointer (value, (gpointer) gdk_screen_get_font_options (screen));
+ break;
+ case PROP_RESOLUTION:
+ g_value_set_double (value, gdk_screen_get_resolution (screen));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
}
+
+static void
+gdk_screen_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GdkScreen *screen = GDK_SCREEN (object);
+
+ switch (prop_id)
+ {
+ case PROP_FONT_OPTIONS:
+ gdk_screen_set_font_options (screen, g_value_get_pointer (value));
+ break;
+ case PROP_RESOLUTION:
+ gdk_screen_set_resolution (screen, g_value_get_double (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+#define __GDK_SCREEN_C__
+#include "gdkaliasdef.c"
projects / ~andy / gtk / blobdiff