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Add gray visual, implement "get_best" functions

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(cherry picked from commit 42d07ad6ce)
This commit is contained in:
Kristian Rietveld 2010-06-25 22:40:27 +02:00
parent 2326d76efa
commit 18b233fe2a
1 changed files with 60 additions and 15 deletions
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75
gdk/quartz/gdkvisual-quartz.c
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@ -23,10 +23,9 @@
#include "gdkvisual.h"
#include "gdkprivate-quartz.h"
/* FIXME: We might want to include the rgba visual in the query functions */
static GdkVisual *system_visual;
static GdkVisual *rgba_visual;
static GdkVisual *gray_visual;
static void
gdk_visual_finalize (GObject *object)
@ -117,13 +116,29 @@ create_standard_visual (gint depth)
return visual;
}
static GdkVisual *
create_gray_visual (void)
{
GdkVisual *visual = g_object_new (GDK_TYPE_VISUAL, NULL);
visual->depth = 1;
visual->byte_order = GDK_MSB_FIRST;
visual->colormap_size = 0;
visual->type = GDK_VISUAL_STATIC_GRAY;
return visual;
}
void
_gdk_visual_init (void)
{
system_visual = create_standard_visual (24);
rgba_visual = create_standard_visual (32);
gray_visual = create_gray_visual ();
}
/* We prefer the system visual for now ... */
gint
gdk_visual_get_best_depth (void)
{
@ -159,34 +174,58 @@ gdk_visual_get_best (void)
GdkVisual*
gdk_visual_get_best_with_depth (gint depth)
{
if (system_visual->depth != depth)
return NULL;
GdkVisual *visual = NULL;
return system_visual;
switch (depth)
{
case 32:
visual = rgba_visual;
break;
case 24:
visual = system_visual;
break;
case 1:
visual = gray_visual;
break;
default:
visual = NULL;
}
return visual;
}
GdkVisual*
gdk_visual_get_best_with_type (GdkVisualType visual_type)
{
if (system_visual->type != visual_type)
return NULL;
if (system_visual->type == visual_type)
return system_visual;
else if (gray_visual->type == visual_type)
return gray_visual;
return system_visual;
return NULL;
}
GdkVisual*
gdk_visual_get_best_with_both (gint depth,
GdkVisualType visual_type)
{
if (system_visual->depth != depth)
return NULL;
if (system_visual->depth == depth
&& system_visual->type == visual_type)
return system_visual;
else if (rgba_visual->depth == depth
&& rgba_visual->type == visual_type)
return rgba_visual;
else if (gray_visual->depth == depth
&& gray_visual->type == visual_type)
return gray_visual;
if (system_visual->type != visual_type)
return NULL;
return system_visual;
return NULL;
}
/* For these, we also prefer the system visual */
void
gdk_query_depths (gint **depths,
gint *count)
@ -206,7 +245,13 @@ gdk_query_visual_types (GdkVisualType **visual_types,
GList*
gdk_screen_list_visuals (GdkScreen *screen)
{
return g_list_append (NULL, gdk_visual_get_system ());
GList *visuals = NULL;
visuals = g_list_append (visuals, system_visual);
visuals = g_list_append (visuals, rgba_visual);
visuals = g_list_append (visuals, gray_visual);
return visuals;
}
GdkScreen *