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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include "gcompris/gcompris.h"
#include <glib/gstdio.h>
#include "gtans_support.h"
/* This is an internally used function to check if a pixmap file exists. */
static gchar* check_file_exists (const gchar *directory,
const gchar *filename);
/* This is an internally used function to create pixmaps. */
static GtkWidget* create_dummy_pixmap (GtkWidget *widget);
GtkWidget*
lookup_widget (GtkWidget *widget,
const gchar *widget_name)
{
GtkWidget *parent, *found_widget;
for (;;)
{
if (GTK_IS_MENU (widget))
parent = gtk_menu_get_attach_widget (GTK_MENU (widget));
else
parent = widget->parent;
if (parent == NULL)
break;
widget = parent;
}
found_widget = (GtkWidget*) gtk_object_get_data (GTK_OBJECT (widget),
widget_name);
if (!found_widget)
g_warning ("Widget not found: %s", widget_name);
return found_widget;
}
/* This is a dummy pixmap we use when a pixmap can't be found. */
static char *dummy_pixmap_xpm[] = {
/* columns rows colors chars-per-pixel */
"1 1 1 1",
" c None",
/* pixels */
" "
};
/* This is an internally used function to create pixmaps. */
static GtkWidget*
create_dummy_pixmap (GtkWidget *widget)
{
GdkColormap *colormap;
GdkPixmap *gdkpixmap;
GdkBitmap *mask;
GtkWidget *pixmap;
colormap = gtk_widget_get_colormap (widget);
gdkpixmap = gdk_pixmap_colormap_create_from_xpm_d (NULL, colormap, &mask,
NULL, dummy_pixmap_xpm);
if (gdkpixmap == NULL)
g_error ("Couldn't create replacement pixmap.");
pixmap = gtk_pixmap_new (gdkpixmap, mask);
gdk_pixmap_unref (gdkpixmap);
gdk_bitmap_unref (mask);
return pixmap;
}
static GList *pixmaps_directories = NULL;
/* Use this function to set the directory containing installed pixmaps. */
void
add_pixmap_directory (const gchar *directory)
{
pixmaps_directories = g_list_prepend (pixmaps_directories,
g_strdup (directory));
}
/* This is an internally used function to create pixmaps. */
GtkWidget*
create_pixmap (GtkWidget *widget,
const gchar *filename)
{
gchar *found_filename = NULL;
GdkColormap *colormap;
GdkPixmap *gdkpixmap;
GdkBitmap *mask;
GtkWidget *pixmap;
GList *elem;
/* We first try any pixmaps directories set by the application. */
elem = pixmaps_directories;
while (elem)
{
found_filename = check_file_exists ((gchar*)elem->data, filename);
if (found_filename)
break;
elem = elem->next;
}
/* If we haven't found the pixmap, try the source directory. */
if (!found_filename)
{
found_filename = check_file_exists ("../pixmaps", filename);
}
if (!found_filename)
{
g_warning ("Couldn't find pixmap file: %s", filename);
return create_dummy_pixmap (widget);
}
colormap = gtk_widget_get_colormap (widget);
gdkpixmap = gdk_pixmap_colormap_create_from_xpm (NULL, colormap, &mask,
NULL, found_filename);
if (gdkpixmap == NULL)
{
g_warning ("Error loading pixmap file: %s", found_filename);
g_free (found_filename);
return create_dummy_pixmap (widget);
}
g_free (found_filename);
pixmap = gtk_pixmap_new (gdkpixmap, mask);
gdk_pixmap_unref (gdkpixmap);
gdk_bitmap_unref (mask);
return pixmap;
}
/* This is an internally used function to check if a pixmap file exists. */
gchar*
check_file_exists (const gchar *directory,
const gchar *filename)
{
gchar *full_filename;
struct stat s;
gint status;
full_filename = (gchar*) g_malloc (strlen (directory) + 1
+ strlen (filename) + 1);
strcpy (full_filename, directory);
strcat (full_filename, G_DIR_SEPARATOR_S);
strcat (full_filename, filename);
status = g_stat (full_filename, &s);
if (status == 0 && S_ISREG (s.st_mode))
return full_filename;
g_free (full_filename);
return NULL;
}
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