mirror of
https://github.com/brl/mutter.git
synced 2024-11-21 23:50:41 -05:00
Workaround for a gdk bug which dies with BadAlloc if you try to allocate
2007-04-11 Thomas Thurman <thomas@thurman.org.uk>
Workaround for a gdk bug which dies with BadAlloc if you try
to allocate an insanely huge rectangle for an insanely huge
window. Fixes #399529.
svn path=/trunk/; revision=3191
This commit is contained in:
Thomas Thurman
Thomas James Alexander Thurman
parent
7626f74b85
commit
2034a309e5
@ -1,3 +1,9 @@
|
||||
2007-04-11 Thomas Thurman <thomas@thurman.org.uk>
|
||||
|
||||
Workaround for a gdk bug which dies with BadAlloc if you try
|
||||
to allocate an insanely huge rectangle for an insanely huge
|
||||
window. Fixes #399529.
|
||||
|
||||
2007-04-11 Elijah Newren <newren gmail com>
|
||||
|
||||
Advertise support of Above and Below operations (assuming the
|
||||
|
||||
125
src/frames.c
125
src/frames.c
@ -33,6 +33,7 @@
|
||||
#include "fixedtip.h"
|
||||
#include "theme.h"
|
||||
#include "prefs.h"
|
||||
#include "errors.h"
|
||||
|
||||
#ifdef HAVE_SHAPE
|
||||
#include <X11/extensions/shape.h>
|
||||
@ -2174,6 +2175,11 @@ meta_frames_expose_event (GtkWidget *widget,
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* How far off the screen edge the window decorations should
|
||||
* be drawn. Used only in meta_frames_paint_to_drawable, below.
|
||||
*/
|
||||
#define DECORATING_BORDER 100
|
||||
|
||||
static void
|
||||
meta_frames_paint_to_drawable (MetaFrames *frames,
|
||||
MetaUIFrame *frame,
|
||||
@ -2191,12 +2197,6 @@ meta_frames_paint_to_drawable (MetaFrames *frames,
|
||||
MetaButtonState button_states[META_BUTTON_TYPE_LAST];
|
||||
Window grab_frame;
|
||||
int i;
|
||||
int top, bottom, left, right;
|
||||
GdkRegion *edges;
|
||||
GdkRegion *tmp_region;
|
||||
GdkRectangle area;
|
||||
GdkRectangle *areas;
|
||||
int n_areas;
|
||||
MetaButtonLayout button_layout;
|
||||
MetaGrabOp grab_op;
|
||||
|
||||
@ -2307,35 +2307,95 @@ meta_frames_paint_to_drawable (MetaFrames *frames,
|
||||
|
||||
meta_frames_ensure_layout (frames, frame);
|
||||
|
||||
meta_theme_get_frame_borders (meta_theme_get_current (),
|
||||
type, frame->text_height, flags,
|
||||
&top, &bottom, &left, &right);
|
||||
|
||||
/* Repaint each side of the frame */
|
||||
|
||||
edges = gdk_region_copy (region);
|
||||
|
||||
/* Punch out the client area */
|
||||
area.x = left;
|
||||
area.y = top;
|
||||
area.width = w;
|
||||
area.height = h;
|
||||
tmp_region = gdk_region_rectangle (&area);
|
||||
gdk_region_subtract (edges, tmp_region);
|
||||
gdk_region_destroy (tmp_region);
|
||||
|
||||
/* Now draw remaining portion of region */
|
||||
gdk_region_get_rectangles (edges, &areas, &n_areas);
|
||||
|
||||
meta_prefs_get_button_layout (&button_layout);
|
||||
for (i = 0; i < n_areas; i++)
|
||||
|
||||
if (G_LIKELY (GDK_IS_WINDOW (drawable)))
|
||||
{
|
||||
if (GDK_IS_WINDOW (drawable))
|
||||
gdk_window_begin_paint_rect (drawable, &areas[i]);
|
||||
/* A window; happens about 2/3 of the time */
|
||||
|
||||
GdkRectangle area, *areas;
|
||||
int n_areas;
|
||||
int screen_width, screen_height;
|
||||
GdkRegion *edges, *tmp_region;
|
||||
int top, bottom, left, right;
|
||||
|
||||
/* Repaint each side of the frame */
|
||||
|
||||
meta_theme_get_frame_borders (meta_theme_get_current (),
|
||||
type, frame->text_height, flags,
|
||||
&top, &bottom, &left, &right);
|
||||
|
||||
meta_core_get_screen_size (gdk_display,
|
||||
frame->xwindow,
|
||||
&screen_width, &screen_height);
|
||||
|
||||
edges = gdk_region_copy (region);
|
||||
|
||||
/* Punch out the client area */
|
||||
|
||||
area.x = left;
|
||||
area.y = top;
|
||||
area.width = w;
|
||||
area.height = h;
|
||||
tmp_region = gdk_region_rectangle (&area);
|
||||
gdk_region_subtract (edges, tmp_region);
|
||||
gdk_region_destroy (tmp_region);
|
||||
|
||||
/* Now draw remaining portion of region */
|
||||
|
||||
gdk_region_get_rectangles (edges, &areas, &n_areas);
|
||||
|
||||
for (i = 0; i < n_areas; i++)
|
||||
{
|
||||
/* Bug 399529: clamp areas[i] so that it doesn't go too far
|
||||
* off the edge of the screen. This works around a GDK bug
|
||||
* which makes gdk_window_begin_paint_rect cause an X error
|
||||
* if the window is insanely huge. If the client is a GDK program
|
||||
* and does this, it will still probably cause an X error in that
|
||||
* program, but the last thing we want is for Metacity to crash
|
||||
* because it attempted to decorate the silly window.
|
||||
*/
|
||||
|
||||
areas[i].x = MAX (areas[i].x, -DECORATING_BORDER);
|
||||
areas[i].y = MAX (areas[i].y, -DECORATING_BORDER);
|
||||
if (areas[i].x+areas[i].width > screen_width + DECORATING_BORDER)
|
||||
areas[i].width = MIN (0, screen_width - areas[i].x);
|
||||
if (areas[i].y+areas[i].height > screen_height + DECORATING_BORDER)
|
||||
areas[i].height = MIN (0, screen_height - areas[i].y);
|
||||
|
||||
/* Okay, so let's start painting. */
|
||||
|
||||
gdk_window_begin_paint_rect (drawable, &areas[i]);
|
||||
|
||||
meta_theme_draw_frame (meta_theme_get_current (),
|
||||
widget,
|
||||
drawable,
|
||||
NULL, /* &areas[i], */
|
||||
x_offset, y_offset,
|
||||
type,
|
||||
flags,
|
||||
w, h,
|
||||
frame->layout,
|
||||
frame->text_height,
|
||||
&button_layout,
|
||||
button_states,
|
||||
mini_icon, icon);
|
||||
|
||||
gdk_window_end_paint (drawable);
|
||||
}
|
||||
|
||||
g_free (areas);
|
||||
gdk_region_destroy (edges);
|
||||
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Not a window; happens about 1/3 of the time */
|
||||
|
||||
meta_theme_draw_frame (meta_theme_get_current (),
|
||||
widget,
|
||||
drawable,
|
||||
NULL, /* &areas[i], */
|
||||
NULL,
|
||||
x_offset, y_offset,
|
||||
type,
|
||||
flags,
|
||||
@ -2345,13 +2405,8 @@ meta_frames_paint_to_drawable (MetaFrames *frames,
|
||||
&button_layout,
|
||||
button_states,
|
||||
mini_icon, icon);
|
||||
|
||||
if (GDK_IS_WINDOW (drawable))
|
||||
gdk_window_end_paint (drawable);
|
||||
}
|
||||
|
||||
gdk_region_destroy (edges);
|
||||
g_free (areas);
|
||||
}
|
||||
|
||||
static void
|
||||
|
||||
Loading…
Reference in New Issue
Block a user