static gboolean apply_fliprotate(fliprotate_settings settings, image_output out)
{
gboolean success = TRUE;
if (settings->flip_h) {
// do horizontal flip
success = gimp_image_flip (
out->image_id,
GIMP_ORIENTATION_HORIZONTAL
);
}
if (settings->flip_v) {
// do vertical flip
success = gimp_image_flip (
out->image_id,
GIMP_ORIENTATION_VERTICAL
);
}
if (settings->rotate) {
// do rotation
success = gimp_image_rotate (
out->image_id,
settings->rotation_type
);
}
return success;
}
static GimpValueArray *
image_rotate_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GimpValueArray *args,
GError **error)
{
gboolean success = TRUE;
GimpImage *image;
gint32 rotate_type;
image = gimp_value_get_image (gimp_value_array_index (args, 0), gimp);
rotate_type = g_value_get_enum (gimp_value_array_index (args, 1));
if (success)
{
if (progress)
gimp_progress_start (progress, FALSE, _("Rotating"));
gimp_image_rotate (image, context, rotate_type, progress);
if (progress)
gimp_progress_end (progress);
}
return gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
}
void
jpeg_exif_rotate (gint32 image_ID,
gint orientation)
{
switch (orientation)
{
case 1: /* standard orientation, do nothing */
break;
case 2: /* flipped right-left */
gimp_image_flip (image_ID, GIMP_ORIENTATION_HORIZONTAL);
break;
case 3: /* rotated 180 */
gimp_image_rotate (image_ID, GIMP_ROTATE_180);
break;
case 4: /* flipped top-bottom */
gimp_image_flip (image_ID, GIMP_ORIENTATION_VERTICAL);
break;
case 5: /* flipped diagonally around '\' */
gimp_image_rotate (image_ID, GIMP_ROTATE_90);
jpeg_swap_original_settings (image_ID);
gimp_image_flip (image_ID, GIMP_ORIENTATION_HORIZONTAL);
break;
case 6: /* 90 CW */
gimp_image_rotate (image_ID, GIMP_ROTATE_90);
jpeg_swap_original_settings (image_ID);
break;
case 7: /* flipped diagonally around '/' */
gimp_image_rotate (image_ID, GIMP_ROTATE_90);
jpeg_swap_original_settings (image_ID);
gimp_image_flip (image_ID, GIMP_ORIENTATION_VERTICAL);
break;
case 8: /* 90 CCW */
gimp_image_rotate (image_ID, GIMP_ROTATE_270);
jpeg_swap_original_settings (image_ID);
break;
default: /* shouldn't happen */
break;
}
}
void
image_rotate_cmd_callback (GtkAction *action,
gint value,
gpointer data)
{
GimpDisplay *display;
GimpProgress *progress;
return_if_no_display (display, data);
progress = gimp_progress_start (GIMP_PROGRESS (display),
_("Rotating"), FALSE);
gimp_image_rotate (display->image, action_data_get_context (data),
(GimpRotationType) value, progress);
if (progress)
gimp_progress_end (progress);
gimp_image_flush (display->image);
}
