/* Try to load an icon for the specified CLASS_NAME in the directory DIR.
Returns 0 if the icon could not be loaded, or returns a pointer to a new
bitmap if it was successful. */
static struct grub_video_bitmap *
try_loading_icon (grub_gfxmenu_icon_manager_t mgr,
const char *dir, const char *class_name)
{
char *path;
int l;
path = grub_malloc (grub_strlen (dir) + grub_strlen (class_name)
+ grub_strlen (icon_extension) + 3);
if (! path)
return 0;
grub_strcpy (path, dir);
l = grub_strlen (path);
if (path[l-1] != '/')
{
path[l] = '/';
path[l+1] = 0;
}
grub_strcat (path, class_name);
grub_strcat (path, icon_extension);
struct grub_video_bitmap *raw_bitmap;
grub_video_bitmap_load (&raw_bitmap, path);
grub_free (path);
grub_errno = GRUB_ERR_NONE; /* Critical to clear the error!! */
if (! raw_bitmap)
return 0;
struct grub_video_bitmap *scaled_bitmap;
grub_video_bitmap_create_scaled (&scaled_bitmap,
mgr->icon_width, mgr->icon_height,
raw_bitmap,
GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST);
grub_video_bitmap_destroy (raw_bitmap);
if (! scaled_bitmap)
return 0;
return scaled_bitmap;
}
static grub_err_t
scale_pixmap (grub_gfxmenu_box_t self, int i, int w, int h)
{
struct grub_video_bitmap **scaled = &self->scaled_pixmaps[i];
struct grub_video_bitmap *raw = self->raw_pixmaps[i];
if (raw == 0)
return grub_errno;
if (w == -1)
w = grub_video_bitmap_get_width (raw);
if (h == -1)
h = grub_video_bitmap_get_height (raw);
if (*scaled == 0
|| ((int) grub_video_bitmap_get_width (*scaled) != w)
|| ((int) grub_video_bitmap_get_height (*scaled) != h))
{
if (*scaled)
{
grub_video_bitmap_destroy (*scaled);
*scaled = 0;
}
/* Don't try to create a bitmap with a zero dimension. */
if (w != 0 && h != 0)
grub_video_bitmap_create_scaled (scaled, w, h, raw,
GRUB_VIDEO_BITMAP_SCALE_METHOD_BEST);
if (grub_errno != GRUB_ERR_NONE)
{
grub_error_push ();
grub_error (grub_errno,
"failed to scale bitmap for styled box pixmap #%d", i);
}
}
return grub_errno;
}
