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Fix multi-monitor backgrounds

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The texture area was meant to be in monitor-relative coordinates, but that
was not consistently followed throughout the code - fix.

https://bugzilla.gnome.org/show_bug.cgi?id=736568
This commit is contained in:
Owen W. Taylor 2014-09-12 10:33:46 -04:00
parent 5c289b7eab
commit 09b46029fa
1 changed files with 20 additions and 9 deletions
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29
src/compositor/meta-background.c
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@ -330,6 +330,16 @@ meta_background_init (MetaBackground *self)
MetaBackgroundPrivate);
}
static void
set_texture_area_from_monitor_area (cairo_rectangle_int_t *monitor_area,
cairo_rectangle_int_t *texture_area)
{
texture_area->x = 0;
texture_area->y = 0;
texture_area->width = monitor_area->width;
texture_area->height = monitor_area->height;
}
static void
get_texture_area (MetaBackground *self,
cairo_rectangle_int_t *monitor_rect,
@ -352,7 +362,7 @@ get_texture_area (MetaBackground *self,
/* paint region is whole actor, and the texture
* is scaled disproportionately to fit the actor
*/
*texture_area = *monitor_rect;
set_texture_area_from_monitor_area (monitor_rect, texture_area);
break;
case G_DESKTOP_BACKGROUND_STYLE_WALLPAPER:
meta_screen_get_size (priv->screen, &screen_width, &screen_height);
@ -376,8 +386,8 @@ get_texture_area (MetaBackground *self,
* and the texture is scaled to the original image size */
image_area.width = texture_width;
image_area.height = texture_height;
image_area.x = monitor_rect->x + monitor_rect->width / 2 - image_area.width / 2;
image_area.y = monitor_rect->y + monitor_rect->height / 2 - image_area.height / 2;
image_area.x = monitor_rect->width / 2 - image_area.width / 2;
image_area.y = monitor_rect->height / 2 - image_area.height / 2;
*texture_area = image_area;
break;
@ -402,8 +412,8 @@ get_texture_area (MetaBackground *self,
image_area.height = texture_height * monitor_x_scale;
/* Position image centered vertically in actor */
image_area.x = monitor_rect->x;
image_area.y = monitor_rect->y + monitor_rect->height / 2 - image_area.height / 2;
image_area.x = 0;
image_area.y = monitor_rect->height / 2 - image_area.height / 2;
}
else
{
@ -412,8 +422,8 @@ get_texture_area (MetaBackground *self,
image_area.height = monitor_rect->height;
/* Position image centered horizontally in actor */
image_area.x = monitor_rect->x + monitor_rect->width / 2 - image_area.width / 2;
image_area.y = monitor_rect->y;
image_area.x = monitor_rect->width / 2 - image_area.width / 2;
image_area.y = 0;
}
*texture_area = image_area;
@ -696,7 +706,7 @@ meta_background_get_texture (MetaBackground *self,
{
ensure_color_texture (self);
if (texture_area)
*texture_area = monitor_area;
set_texture_area_from_monitor_area (&monitor_area, texture_area);
if (wrap_mode)
*wrap_mode = COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE;
return priv->color_texture;
@ -802,7 +812,8 @@ meta_background_get_texture (MetaBackground *self,
}
if (texture_area)
*texture_area = monitor_area;
set_texture_area_from_monitor_area (&monitor_area, texture_area);
if (wrap_mode)
*wrap_mode = COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE;
return monitor->texture;