Commit 14724626 authored by Owen Taylor's avatar Owen Taylor Committed by Owen Taylor

Use floor() instead of truncating to integer values so we get translation

Wed Jan 20 11:19:00 1999  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtklabel.c: Use floor() instead of truncating
	to integer values so we get translation invariance.

	* gtk/gtklayout.c (gtk_layout_size_allocate): Set upper
	and lower values for adjustments in size_allocate().

	* gdk/gdkwindow.c gdk/gdk.h gdk/gdkprivate.h: New
	function gdk_window_set_static_gravities() to set
	up a window for guffaw scrolling.

	* gdk/gdkwindow.c (gdk_window_internal_destroy): Set flags
	indicating destroyed state before cleanup.

	* gtk/gtkprivate.h gtk/gtkwidget.c: Add a new
	private flag IS_OFFSCREEN. If set, this indicates
	to GTK+ that the widget is not to be considered
	viewable regardless of its map state. Queued draws
	on offscreen widgets are suppressed.

	Added new function static gtk_widget_is_offscreen() to
	check this flag on a widget and its ancestors.

	* gtk/gtklayout.[ch]: Major revisions.

	- Use gdk_window_set_static_gravities to set static gravity
	on all child windows, and thus avoid having to create a window
	for NO_WINDOW children.

	- Adjust allocations of children as we scroll them
	so queued draws work correctly.

	- Don't allocate our children directly in a put()
	or move(); just queue a resize() like every other
	widget.

	* gtk/testgtk.c: Make the arrows on the scrollbars
	work, create a larger and more demanding test.
parent 90c7ea0b
Wed Jan 20 11:19:00 1999 Owen Taylor <otaylor@redhat.com>
* gtk/gtklabel.c: Use floor() instead of truncating
to integer values so we get translation invariance.
* gtk/gtklayout.c (gtk_layout_size_allocate): Set upper
and lower values for adjustments in size_allocate().
* gdk/gdkwindow.c gdk/gdk.h gdk/gdkprivate.h: New
function gdk_window_set_static_gravities() to set
up a window for guffaw scrolling.
* gdk/gdkwindow.c (gdk_window_internal_destroy): Set flags
indicating destroyed state before cleanup.
* gtk/gtkprivate.h gtk/gtkwidget.c: Add a new
private flag IS_OFFSCREEN. If set, this indicates
to GTK+ that the widget is not to be considered
viewable regardless of its map state. Queued draws
on offscreen widgets are suppressed.
Added new function static gtk_widget_is_offscreen() to
check this flag on a widget and its ancestors.
* gtk/gtklayout.[ch]: Major revisions.
- Use gdk_window_set_static_gravities to set static gravity
on all child windows, and thus avoid having to create a window
for NO_WINDOW children.
- Adjust allocations of children as we scroll them
so queued draws work correctly.
- Don't allocate our children directly in a put()
or move(); just queue a resize() like every other
widget.
* gtk/testgtk.c: Make the arrows on the scrollbars
work, create a larger and more demanding test.
Wed Jan 27 09:19:07 1999 Tim Janik <timj@gtk.org>
* gdk/gdkcolor.c (gdk_colormap_unref): assert ref_count>0.
......
Wed Jan 20 11:19:00 1999 Owen Taylor <otaylor@redhat.com>
* gtk/gtklabel.c: Use floor() instead of truncating
to integer values so we get translation invariance.
* gtk/gtklayout.c (gtk_layout_size_allocate): Set upper
and lower values for adjustments in size_allocate().
* gdk/gdkwindow.c gdk/gdk.h gdk/gdkprivate.h: New
function gdk_window_set_static_gravities() to set
up a window for guffaw scrolling.
* gdk/gdkwindow.c (gdk_window_internal_destroy): Set flags
indicating destroyed state before cleanup.
* gtk/gtkprivate.h gtk/gtkwidget.c: Add a new
private flag IS_OFFSCREEN. If set, this indicates
to GTK+ that the widget is not to be considered
viewable regardless of its map state. Queued draws
on offscreen widgets are suppressed.
Added new function static gtk_widget_is_offscreen() to
check this flag on a widget and its ancestors.
* gtk/gtklayout.[ch]: Major revisions.
- Use gdk_window_set_static_gravities to set static gravity
on all child windows, and thus avoid having to create a window
for NO_WINDOW children.
- Adjust allocations of children as we scroll them
so queued draws work correctly.
- Don't allocate our children directly in a put()
or move(); just queue a resize() like every other
widget.
* gtk/testgtk.c: Make the arrows on the scrollbars
work, create a larger and more demanding test.
Wed Jan 27 09:19:07 1999 Tim Janik <timj@gtk.org>
* gdk/gdkcolor.c (gdk_colormap_unref): assert ref_count>0.
......
Wed Jan 20 11:19:00 1999 Owen Taylor <otaylor@redhat.com>
* gtk/gtklabel.c: Use floor() instead of truncating
to integer values so we get translation invariance.
* gtk/gtklayout.c (gtk_layout_size_allocate): Set upper
and lower values for adjustments in size_allocate().
* gdk/gdkwindow.c gdk/gdk.h gdk/gdkprivate.h: New
function gdk_window_set_static_gravities() to set
up a window for guffaw scrolling.
* gdk/gdkwindow.c (gdk_window_internal_destroy): Set flags
indicating destroyed state before cleanup.
* gtk/gtkprivate.h gtk/gtkwidget.c: Add a new
private flag IS_OFFSCREEN. If set, this indicates
to GTK+ that the widget is not to be considered
viewable regardless of its map state. Queued draws
on offscreen widgets are suppressed.
Added new function static gtk_widget_is_offscreen() to
check this flag on a widget and its ancestors.
* gtk/gtklayout.[ch]: Major revisions.
- Use gdk_window_set_static_gravities to set static gravity
on all child windows, and thus avoid having to create a window
for NO_WINDOW children.
- Adjust allocations of children as we scroll them
so queued draws work correctly.
- Don't allocate our children directly in a put()
or move(); just queue a resize() like every other
widget.
* gtk/testgtk.c: Make the arrows on the scrollbars
work, create a larger and more demanding test.
Wed Jan 27 09:19:07 1999 Tim Janik <timj@gtk.org>
* gdk/gdkcolor.c (gdk_colormap_unref): assert ref_count>0.
......
Wed Jan 20 11:19:00 1999 Owen Taylor <otaylor@redhat.com>
* gtk/gtklabel.c: Use floor() instead of truncating
to integer values so we get translation invariance.
* gtk/gtklayout.c (gtk_layout_size_allocate): Set upper
and lower values for adjustments in size_allocate().
* gdk/gdkwindow.c gdk/gdk.h gdk/gdkprivate.h: New
function gdk_window_set_static_gravities() to set
up a window for guffaw scrolling.
* gdk/gdkwindow.c (gdk_window_internal_destroy): Set flags
indicating destroyed state before cleanup.
* gtk/gtkprivate.h gtk/gtkwidget.c: Add a new
private flag IS_OFFSCREEN. If set, this indicates
to GTK+ that the widget is not to be considered
viewable regardless of its map state. Queued draws
on offscreen widgets are suppressed.
Added new function static gtk_widget_is_offscreen() to
check this flag on a widget and its ancestors.
* gtk/gtklayout.[ch]: Major revisions.
- Use gdk_window_set_static_gravities to set static gravity
on all child windows, and thus avoid having to create a window
for NO_WINDOW children.
- Adjust allocations of children as we scroll them
so queued draws work correctly.
- Don't allocate our children directly in a put()
or move(); just queue a resize() like every other
widget.
* gtk/testgtk.c: Make the arrows on the scrollbars
work, create a larger and more demanding test.
Wed Jan 27 09:19:07 1999 Tim Janik <timj@gtk.org>
* gdk/gdkcolor.c (gdk_colormap_unref): assert ref_count>0.
......
Wed Jan 20 11:19:00 1999 Owen Taylor <otaylor@redhat.com>
* gtk/gtklabel.c: Use floor() instead of truncating
to integer values so we get translation invariance.
* gtk/gtklayout.c (gtk_layout_size_allocate): Set upper
and lower values for adjustments in size_allocate().
* gdk/gdkwindow.c gdk/gdk.h gdk/gdkprivate.h: New
function gdk_window_set_static_gravities() to set
up a window for guffaw scrolling.
* gdk/gdkwindow.c (gdk_window_internal_destroy): Set flags
indicating destroyed state before cleanup.
* gtk/gtkprivate.h gtk/gtkwidget.c: Add a new
private flag IS_OFFSCREEN. If set, this indicates
to GTK+ that the widget is not to be considered
viewable regardless of its map state. Queued draws
on offscreen widgets are suppressed.
Added new function static gtk_widget_is_offscreen() to
check this flag on a widget and its ancestors.
* gtk/gtklayout.[ch]: Major revisions.
- Use gdk_window_set_static_gravities to set static gravity
on all child windows, and thus avoid having to create a window
for NO_WINDOW children.
- Adjust allocations of children as we scroll them
so queued draws work correctly.
- Don't allocate our children directly in a put()
or move(); just queue a resize() like every other
widget.
* gtk/testgtk.c: Make the arrows on the scrollbars
work, create a larger and more demanding test.
Wed Jan 27 09:19:07 1999 Tim Janik <timj@gtk.org>
* gdk/gdkcolor.c (gdk_colormap_unref): assert ref_count>0.
......
Wed Jan 20 11:19:00 1999 Owen Taylor <otaylor@redhat.com>
* gtk/gtklabel.c: Use floor() instead of truncating
to integer values so we get translation invariance.
* gtk/gtklayout.c (gtk_layout_size_allocate): Set upper
and lower values for adjustments in size_allocate().
* gdk/gdkwindow.c gdk/gdk.h gdk/gdkprivate.h: New
function gdk_window_set_static_gravities() to set
up a window for guffaw scrolling.
* gdk/gdkwindow.c (gdk_window_internal_destroy): Set flags
indicating destroyed state before cleanup.
* gtk/gtkprivate.h gtk/gtkwidget.c: Add a new
private flag IS_OFFSCREEN. If set, this indicates
to GTK+ that the widget is not to be considered
viewable regardless of its map state. Queued draws
on offscreen widgets are suppressed.
Added new function static gtk_widget_is_offscreen() to
check this flag on a widget and its ancestors.
* gtk/gtklayout.[ch]: Major revisions.
- Use gdk_window_set_static_gravities to set static gravity
on all child windows, and thus avoid having to create a window
for NO_WINDOW children.
- Adjust allocations of children as we scroll them
so queued draws work correctly.
- Don't allocate our children directly in a put()
or move(); just queue a resize() like every other
widget.
* gtk/testgtk.c: Make the arrows on the scrollbars
work, create a larger and more demanding test.
Wed Jan 27 09:19:07 1999 Tim Janik <timj@gtk.org>
* gdk/gdkcolor.c (gdk_colormap_unref): assert ref_count>0.
......
Wed Jan 20 11:19:00 1999 Owen Taylor <otaylor@redhat.com>
* gtk/gtklabel.c: Use floor() instead of truncating
to integer values so we get translation invariance.
* gtk/gtklayout.c (gtk_layout_size_allocate): Set upper
and lower values for adjustments in size_allocate().
* gdk/gdkwindow.c gdk/gdk.h gdk/gdkprivate.h: New
function gdk_window_set_static_gravities() to set
up a window for guffaw scrolling.
* gdk/gdkwindow.c (gdk_window_internal_destroy): Set flags
indicating destroyed state before cleanup.
* gtk/gtkprivate.h gtk/gtkwidget.c: Add a new
private flag IS_OFFSCREEN. If set, this indicates
to GTK+ that the widget is not to be considered
viewable regardless of its map state. Queued draws
on offscreen widgets are suppressed.
Added new function static gtk_widget_is_offscreen() to
check this flag on a widget and its ancestors.
* gtk/gtklayout.[ch]: Major revisions.
- Use gdk_window_set_static_gravities to set static gravity
on all child windows, and thus avoid having to create a window
for NO_WINDOW children.
- Adjust allocations of children as we scroll them
so queued draws work correctly.
- Don't allocate our children directly in a put()
or move(); just queue a resize() like every other
widget.
* gtk/testgtk.c: Make the arrows on the scrollbars
work, create a larger and more demanding test.
Wed Jan 27 09:19:07 1999 Tim Janik <timj@gtk.org>
* gdk/gdkcolor.c (gdk_colormap_unref): assert ref_count>0.
......
......@@ -227,6 +227,11 @@ void gdk_window_merge_child_shapes (GdkWindow *window);
gboolean gdk_window_is_visible (GdkWindow *window);
gboolean gdk_window_is_viewable (GdkWindow *window);
/* Set static bit gravity on the parent, and static
* window gravity on all children.
*/
gboolean gdk_window_set_static_gravities (GdkWindow *window,
gboolean use_static);
/*
* The following function adds a global filter for all client
* messages of type message_type
......
......@@ -64,6 +64,7 @@ struct _GdkWindowPrivate
guint ref_count;
guint destroyed : 2;
guint mapped : 1;
guint guffaw_gravity : 1;
gint extension_events;
......
......@@ -69,6 +69,10 @@ const int gdk_event_mask_table[20] =
};
const int gdk_nevent_masks = sizeof(gdk_event_mask_table)/sizeof(int);
/* Forward declarations */
static gboolean gdk_window_gravity_works (void);
static void gdk_window_set_static_win_gravity (GdkWindow *window,
gboolean on);
static gboolean gdk_window_have_shape_ext (void);
/* internal function created for and used by gdk_window_xid_at_coords */
......@@ -274,12 +278,10 @@ gdk_window_new (GdkWindow *parent,
private->parent = parent;
if (parent_private)
parent_private->children = g_list_prepend (parent_private->children, window);
private->xdisplay = parent_display;
private->destroyed = FALSE;
private->mapped = FALSE;
private->guffaw_gravity = FALSE;
private->resize_count = 0;
private->ref_count = 1;
xattributes_mask = 0;
......@@ -322,13 +324,21 @@ gdk_window_new (GdkWindow *parent,
if (xattributes.event_mask)
xattributes_mask |= CWEventMask;
if(attributes_mask & GDK_WA_NOREDIR) {
xattributes.override_redirect =
if (attributes_mask & GDK_WA_NOREDIR)
{
xattributes.override_redirect =
(attributes->override_redirect == FALSE)?False:True;
xattributes_mask |= CWOverrideRedirect;
} else
xattributes_mask |= CWOverrideRedirect;
}
else
xattributes.override_redirect = False;
if (parent_private && parent_private->guffaw_gravity)
{
xattributes.win_gravity = StaticGravity;
xattributes_mask |= CWWinGravity;
}
if (attributes->wclass == GDK_INPUT_OUTPUT)
{
class = InputOutput;
......@@ -409,6 +419,9 @@ gdk_window_new (GdkWindow *parent,
(attributes->cursor) :
NULL));
if (parent_private)
parent_private->children = g_list_prepend (parent_private->children, window);
switch (private->window_type)
{
case GDK_WINDOW_DIALOG:
......@@ -523,6 +536,7 @@ gdk_window_foreign_new (guint32 anid)
private->window_type = GDK_WINDOW_FOREIGN;
private->destroyed = FALSE;
private->mapped = (attrs.map_state != IsUnmapped);
private->guffaw_gravity = FALSE;
private->extension_events = 0;
private->colormap = NULL;
......@@ -877,8 +891,13 @@ gdk_window_reparent (GdkWindow *window,
if (old_parent_private)
old_parent_private->children = g_list_remove (old_parent_private->children, window);
parent_private->children = g_list_prepend (parent_private->children, window);
if ((old_parent_private &&
(!old_parent_private->guffaw_gravity != !parent_private->guffaw_gravity)) ||
(!old_parent_private && parent_private->guffaw_gravity))
gdk_window_set_static_win_gravity (window, parent_private->guffaw_gravity);
parent_private->children = g_list_prepend (parent_private->children, window);
}
void
......@@ -2547,3 +2566,136 @@ gdk_drawable_set_data (GdkDrawable *drawable,
{
g_dataset_set_data_full (drawable, key, data, destroy_func);
}
/* Support for windows that can be guffaw-scrolled
* (See http://www.gtk.org/~otaylor/whitepapers/guffaw-scrolling.txt)
*/
static gboolean
gdk_window_gravity_works (void)
{
enum { UNKNOWN, NO, YES };
static gint gravity_works = UNKNOWN;
if (gravity_works == UNKNOWN)
{
GdkWindowAttr attr;
GdkWindow *parent;
GdkWindow *child;
gint y;
/* This particular server apparently has a bug so that the test
* works but the actual code crashes it
*/
if ((!strcmp (XServerVendor (gdk_display), "Sun Microsystems, Inc.")) &&
(VendorRelease (gdk_display) == 3400))
{
gravity_works = NO;
return FALSE;
}
attr.window_type = GDK_WINDOW_TEMP;
attr.wclass = GDK_INPUT_OUTPUT;
attr.x = 0;
attr.y = 0;
attr.width = 100;
attr.height = 100;
attr.event_mask = 0;
parent = gdk_window_new (NULL, &attr, GDK_WA_X | GDK_WA_Y);
attr.window_type = GDK_WINDOW_CHILD;
child = gdk_window_new (parent, &attr, GDK_WA_X | GDK_WA_Y);
gdk_window_set_static_win_gravity (child, TRUE);
gdk_window_resize (parent, 100, 110);
gdk_window_move (parent, 0, -10);
gdk_window_move_resize (parent, 0, 0, 100, 100);
gdk_window_resize (parent, 100, 110);
gdk_window_move (parent, 0, -10);
gdk_window_move_resize (parent, 0, 0, 100, 100);
gdk_window_get_geometry (child, NULL, &y, NULL, NULL, NULL);
gdk_window_destroy (parent);
gdk_window_destroy (child);
gravity_works = ((y == -20) ? YES : NO);
}
return (gravity_works == YES);
}
static void
gdk_window_set_static_bit_gravity (GdkWindow *window, gboolean on)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
XSetWindowAttributes xattributes;
g_return_if_fail (window != NULL);
xattributes.bit_gravity = on ? StaticGravity : ForgetGravity;
XChangeWindowAttributes (private->xdisplay,
private->xwindow,
CWBitGravity, &xattributes);
}
static void
gdk_window_set_static_win_gravity (GdkWindow *window, gboolean on)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
XSetWindowAttributes xattributes;
g_return_if_fail (window != NULL);
xattributes.win_gravity = on ? StaticGravity : NorthWestGravity;
XChangeWindowAttributes (private->xdisplay,
private->xwindow,
CWWinGravity, &xattributes);
}
/*************************************************************
* gdk_window_set_static_gravities:
* Set the bit gravity of the given window to static,
* and flag it so all children get static subwindow
* gravity.
* arguments:
* window: window for which to set static gravity
* use_static: Whether to turn static gravity on or off.
* results:
* Does the XServer support static gravity?
*************************************************************/
gboolean
gdk_window_set_static_gravities (GdkWindow *window,
gboolean use_static)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GList *tmp_list;
g_return_val_if_fail (window != NULL, FALSE);
if (!use_static == !private->guffaw_gravity)
return TRUE;
if (use_static && !gdk_window_gravity_works ())
return FALSE;
private->guffaw_gravity = use_static;
gdk_window_set_static_bit_gravity (window, use_static);
tmp_list = private->children;
while (tmp_list)
{
gdk_window_set_static_win_gravity (window, use_static);
tmp_list = tmp_list->next;
}
return TRUE;
}
......@@ -69,6 +69,10 @@ const int gdk_event_mask_table[20] =
};
const int gdk_nevent_masks = sizeof(gdk_event_mask_table)/sizeof(int);
/* Forward declarations */
static gboolean gdk_window_gravity_works (void);
static void gdk_window_set_static_win_gravity (GdkWindow *window,
gboolean on);
static gboolean gdk_window_have_shape_ext (void);
/* internal function created for and used by gdk_window_xid_at_coords */
......@@ -274,12 +278,10 @@ gdk_window_new (GdkWindow *parent,
private->parent = parent;
if (parent_private)
parent_private->children = g_list_prepend (parent_private->children, window);
private->xdisplay = parent_display;
private->destroyed = FALSE;
private->mapped = FALSE;
private->guffaw_gravity = FALSE;
private->resize_count = 0;
private->ref_count = 1;
xattributes_mask = 0;
......@@ -322,13 +324,21 @@ gdk_window_new (GdkWindow *parent,
if (xattributes.event_mask)
xattributes_mask |= CWEventMask;
if(attributes_mask & GDK_WA_NOREDIR) {
xattributes.override_redirect =
if (attributes_mask & GDK_WA_NOREDIR)
{
xattributes.override_redirect =
(attributes->override_redirect == FALSE)?False:True;
xattributes_mask |= CWOverrideRedirect;
} else
xattributes_mask |= CWOverrideRedirect;
}
else
xattributes.override_redirect = False;
if (parent_private && parent_private->guffaw_gravity)
{
xattributes.win_gravity = StaticGravity;
xattributes_mask |= CWWinGravity;
}
if (attributes->wclass == GDK_INPUT_OUTPUT)
{
class = InputOutput;
......@@ -409,6 +419,9 @@ gdk_window_new (GdkWindow *parent,
(attributes->cursor) :
NULL));
if (parent_private)
parent_private->children = g_list_prepend (parent_private->children, window);
switch (private->window_type)
{
case GDK_WINDOW_DIALOG:
......@@ -523,6 +536,7 @@ gdk_window_foreign_new (guint32 anid)
private->window_type = GDK_WINDOW_FOREIGN;
private->destroyed = FALSE;
private->mapped = (attrs.map_state != IsUnmapped);
private->guffaw_gravity = FALSE;
private->extension_events = 0;
private->colormap = NULL;
......@@ -877,8 +891,13 @@ gdk_window_reparent (GdkWindow *window,
if (old_parent_private)
old_parent_private->children = g_list_remove (old_parent_private->children, window);
parent_private->children = g_list_prepend (parent_private->children, window);
if ((old_parent_private &&
(!old_parent_private->guffaw_gravity != !parent_private->guffaw_gravity)) ||
(!old_parent_private && parent_private->guffaw_gravity))
gdk_window_set_static_win_gravity (window, parent_private->guffaw_gravity);
parent_private->children = g_list_prepend (parent_private->children, window);
}
void
......@@ -2547,3 +2566,136 @@ gdk_drawable_set_data (GdkDrawable *drawable,
{
g_dataset_set_data_full (drawable, key, data, destroy_func);
}
/* Support for windows that can be guffaw-scrolled
* (See http://www.gtk.org/~otaylor/whitepapers/guffaw-scrolling.txt)
*/
static gboolean
gdk_window_gravity_works (void)
{
enum { UNKNOWN, NO, YES };
static gint gravity_works = UNKNOWN;
if (gravity_works == UNKNOWN)
{
GdkWindowAttr attr;
GdkWindow *parent;
GdkWindow *child;
gint y;
/* This particular server apparently has a bug so that the test
* works but the actual code crashes it
*/
if ((!strcmp (XServerVendor (gdk_display), "Sun Microsystems, Inc.")) &&
(VendorRelease (gdk_display) == 3400))
{
gravity_works = NO;
return FALSE;
}
attr.window_type = GDK_WINDOW_TEMP;
attr.wclass = GDK_INPUT_OUTPUT;
attr.x = 0;
attr.y = 0;
attr.width = 100;
attr.height = 100;
attr.event_mask = 0;
parent = gdk_window_new (NULL, &attr, GDK_WA_X | GDK_WA_Y);
attr.window_type = GDK_WINDOW_CHILD;
child = gdk_window_new (parent, &attr, GDK_WA_X | GDK_WA_Y);
gdk_window_set_static_win_gravity (child, TRUE);
gdk_window_resize (parent, 100, 110);
gdk_window_move (parent, 0, -10);
gdk_window_move_resize (parent, 0, 0, 100, 100);
gdk_window_resize (parent, 100, 110);
gdk_window_move (parent, 0, -10);
gdk_window_move_resize (parent, 0, 0, 100, 100);
gdk_window_get_geometry (child, NULL, &y, NULL, NULL, NULL);
gdk_window_destroy (parent);
gdk_window_destroy (child);
gravity_works = ((y == -20) ? YES : NO);
}
return (gravity_works == YES);
}
static void
gdk_window_set_static_bit_gravity (GdkWindow *window, gboolean on)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
XSetWindowAttributes xattributes;
g_return_if_fail (window != NULL);
xattributes.bit_gravity = on ? StaticGravity : ForgetGravity;
XChangeWindowAttributes (private->xdisplay,
private->xwindow,
CWBitGravity, &xattributes);
}
static void
gdk_window_set_static_win_gravity (GdkWindow *window, gboolean on)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
XSetWindowAttributes xattributes;
g_return_if_fail (window != NULL);
xattributes.win_gravity = on ? StaticGravity : NorthWestGravity;
XChangeWindowAttributes (private->xdisplay,
private->xwindow,
CWWinGravity, &xattributes);
}
/*************************************************************
* gdk_window_set_static_gravities:
* Set the bit gravity of the given window to static,
* and flag it so all children get static subwindow
* gravity.
* arguments:
* window: window for which to set static gravity
* use_static: Whether to turn static gravity on or off.
* results:
* Does the XServer support static gravity?
*************************************************************/
gboolean
gdk_window_set_static_gravities (GdkWindow *window,
gboolean use_static)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)window;
GList *tmp_list;
g_return_val_if_fail (window != NULL, FALSE);
if (!use_static == !private->guffaw_gravity)
return TRUE;
if (use_static && !gdk_window_gravity_works ())
return FALSE;
private->guffaw_gravity = use_static;
gdk_window_set_static_bit_gravity (window, use_static);
tmp_list = private->children;
while (tmp_list)