void
select_float_cmd_callback (GtkAction *action,
gpointer data)
{
GimpImage *image;
GtkWidget *widget;
GError *error = NULL;
return_if_no_image (image, data);
return_if_no_widget (widget, data);
if (gimp_selection_float (GIMP_SELECTION (gimp_image_get_mask (image)),
gimp_image_get_active_drawable (image),
action_data_get_context (data),
TRUE, 0, 0, &error))
{
gimp_image_flush (image);
}
else
{
gimp_message_literal (image->gimp,
G_OBJECT (widget), GIMP_MESSAGE_WARNING,
error->message);
g_clear_error (&error);
}
}
static GimpValueArray *
selection_float_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GimpValueArray *args,
GError **error)
{
gboolean success = TRUE;
GimpValueArray *return_vals;
GimpDrawable *drawable;
gint32 offx;
gint32 offy;
GimpLayer *layer = NULL;
drawable = gimp_value_get_drawable (gimp_value_array_index (args, 0), gimp);
offx = g_value_get_int (gimp_value_array_index (args, 1));
offy = g_value_get_int (gimp_value_array_index (args, 2));
if (success)
{
if (gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL,
GIMP_PDB_ITEM_CONTENT, error) &&
gimp_pdb_item_is_not_group (GIMP_ITEM (drawable), error))
{
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
layer = gimp_selection_float (GIMP_SELECTION (gimp_image_get_mask (image)),
drawable, context, TRUE, offx, offy,
error);
if (! layer)
success = FALSE;
}
else
success = FALSE;
}
return_vals = gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
if (success)
gimp_value_set_layer (gimp_value_array_index (return_vals, 1), layer);
return return_vals;
}
static GValueArray *
selection_float_invoker (GimpProcedure *procedure,
Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
const GValueArray *args,
GError **error)
{
gboolean success = TRUE;
GValueArray *return_vals;
GimpDrawable *drawable;
gint32 offx;
gint32 offy;
GimpLayer *layer = NULL;
drawable = gimp_value_get_drawable (&args->values[0], gimp);
offx = g_value_get_int (&args->values[1]);
offy = g_value_get_int (&args->values[2]);
if (success)
{
if (gimp_pdb_item_is_attached (GIMP_ITEM (drawable), error))
{
GimpImage *image = gimp_item_get_image (GIMP_ITEM (drawable));
layer = gimp_selection_float (gimp_image_get_mask (image),
drawable, context, TRUE, offx, offy,
error);
if (! layer)
success = FALSE;
}
else
success = FALSE;
}
return_vals = gimp_procedure_get_return_values (procedure, success,
error ? *error : NULL);
if (success)
gimp_value_set_layer (&return_vals->values[1], layer);
return return_vals;
}
void
select_float_cmd_callback (GtkAction *action,
gpointer data)
{
GimpImage *image;
GtkWidget *widget;
return_if_no_image (image, data);
return_if_no_widget (widget, data);
if (gimp_selection_float (gimp_image_get_mask (image),
gimp_image_get_active_drawable (image),
action_data_get_context (data),
TRUE, 0, 0))
{
gimp_image_flush (image);
}
else
{
gimp_message (image->gimp, G_OBJECT (widget), GIMP_MESSAGE_WARNING,
_("Cannot float selection because the selected region "
"is empty."));
}
}
/* The main rotate function */
static void
rotate (void)
{
GimpDrawable *drawable;
gint32 *layers;
gint i;
gint nlayers;
gint32 guide_ID;
GuideInfo *guide;
GList *guides = NULL;
GList *list;
if (rotvals.angle == 0) return;
/* if there's a selection and we try to rotate the whole image */
/* create an error message and exit */
if (rotvals.everything)
{
if (! gimp_selection_is_empty (image_ID))
{
gimp_message (_("You can not rotate the whole image if there's a selection."));
gimp_drawable_detach (active_drawable);
return;
}
if (gimp_item_is_layer (active_drawable->drawable_id) &&
gimp_layer_is_floating_sel (active_drawable->drawable_id))
{
gimp_message (_("You can not rotate the whole image if there's a floating selection."));
gimp_drawable_detach (active_drawable);
return;
}
}
else
/* if we are trying to rotate a channel or a mask,
create an error message and exit */
{
if (! gimp_item_is_layer (active_drawable->drawable_id))
{
gimp_message (_("Sorry, channels and masks can not be rotated."));
gimp_drawable_detach (active_drawable);
return;
}
}
gimp_progress_init (_("Rotating"));
gimp_image_undo_group_start (image_ID);
if (rotvals.everything) /* rotate the whole image */
{
gint32 width = gimp_image_width (image_ID);
gint32 height = gimp_image_height (image_ID);
gimp_drawable_detach (active_drawable);
layers = gimp_image_get_layers (image_ID, &nlayers);
for (i = 0; i < nlayers; i++)
{
drawable = gimp_drawable_get (layers[i]);
rotate_drawable (drawable);
gimp_drawable_detach (drawable);
}
g_free (layers);
/* build a list of all guides and remove them */
guide_ID = 0;
while ((guide_ID = gimp_image_find_next_guide (image_ID, guide_ID)) != 0)
{
guide = g_new (GuideInfo, 1);
guide->ID = guide_ID;
guide->orientation = gimp_image_get_guide_orientation (image_ID,
guide_ID);
guide->position = gimp_image_get_guide_position (image_ID, guide_ID);
guides = g_list_prepend (guides, guide);
}
for (list = guides; list; list = list->next)
{
guide = (GuideInfo *) list->data;
gimp_image_delete_guide (image_ID, guide->ID);
}
/* if rotation is not 180 degrees, resize the image */
/* Do it now after the guides are removed, since */
/* gimp_image_resize() moves the guides. */
if (rotvals.angle != 2)
gimp_image_resize (image_ID, height, width, 0, 0);
/* add the guides back to the image */
if (guides)
{
switch (rotvals.angle)
{
case 1:
for (list = guides; list; list = list->next)
{
guide = (GuideInfo *)list->data;
if (guide->orientation == GIMP_ORIENTATION_HORIZONTAL)
gimp_image_add_vguide (image_ID, height - guide->position);
else
gimp_image_add_hguide (image_ID, guide->position);
g_free (guide);
}
break;
case 2:
for (list = guides; list; list = list->next)
{
guide = (GuideInfo *)list->data;
if (guide->orientation == GIMP_ORIENTATION_HORIZONTAL)
gimp_image_add_hguide (image_ID, height - guide->position);
else
gimp_image_add_vguide (image_ID, width - guide->position);
g_free (guide);
}
break;
case 3:
for (list = guides; list; list = list->next)
{
guide = (GuideInfo *)list->data;
if (guide->orientation == GIMP_ORIENTATION_HORIZONTAL)
gimp_image_add_vguide (image_ID, guide->position);
else
gimp_image_add_hguide (image_ID, width - guide->position);
g_free (guide);
}
break;
default:
break;
}
g_list_free (guides);
}
}
else /* rotate only the active layer */
{
/* check for active selection and float it */
if (! gimp_selection_is_empty (image_ID) &&
! gimp_layer_is_floating_sel (active_drawable->drawable_id))
{
active_drawable =
gimp_drawable_get (gimp_selection_float (image_ID,
active_drawable->drawable_id,
0, 0));
}
rotate_drawable (active_drawable);
gimp_drawable_detach (active_drawable);
}
gimp_image_undo_group_end (image_ID);
return;
}
