static struct LayerVisibilityChange *
undo_layer_visibility(Diagram *dia, Layer *layer, gboolean exclusive)
{
struct LayerVisibilityChange *change;
GList *visibilities = NULL;
int i;
GPtrArray *layers = dia->data->layers;
change = g_new0(struct LayerVisibilityChange, 1);
change->change.apply = (UndoApplyFunc) layer_visibility_change_apply;
change->change.revert = (UndoRevertFunc) layer_visibility_change_revert;
change->change.free = (UndoFreeFunc) layer_visibility_change_free;
for (i = 0; i < layers->len; i++) {
Layer *temp_layer = (Layer *) g_ptr_array_index(layers, i);
visibilities = g_list_append(visibilities, (gpointer)temp_layer->visible);
}
change->original_visibility = visibilities;
change->layer = layer;
change->is_exclusive = exclusive;
undo_push_change(dia->undo, (Change *) change);
return change;
}
/** Create a new Change object for parenting/unparenting.
* `parent' is TRUE if applying this change makes childobj a
* child of parentobj.
*/
Change *
undo_parenting(Diagram *dia, DiaObject* parentobj, DiaObject* childobj,
gboolean parent)
{
struct ParentChange *parentchange = g_new0(struct ParentChange, 1);
Change *change = (Change*)parentchange;
change->apply = parent_change_apply;
change->revert = parent_change_revert;
change->free = parent_change_free;
parentchange->parentobj = parentobj;
parentchange->childobj = childobj;
parentchange->parent = parent;
DEBUG_PRINTF(("UNDO: Push new obj_change at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, change);
return change;
}
static Change *
undo_layer(Diagram *dia, Layer *layer, enum LayerChangeType type, int index)
{
struct LayerChange *change;
change = g_new0(struct LayerChange, 1);
change->change.apply = (UndoApplyFunc) layer_change_apply;
change->change.revert = (UndoRevertFunc) layer_change_revert;
change->change.free = (UndoFreeFunc) layer_change_free;
change->type = type;
change->layer = layer;
change->index = index;
change->applied = 1;
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}
Change *
undo_object_change(Diagram *dia, DiaObject *obj,
ObjectChange *obj_change)
{
struct ObjectChangeChange *change;
change = g_new0(struct ObjectChangeChange, 1);
change->change.apply = (UndoApplyFunc) object_change_apply;
change->change.revert = (UndoRevertFunc) object_change_revert;
change->change.free = (UndoFreeFunc) object_change_free;
change->obj = obj;
change->obj_change = obj_change;
DEBUG_PRINTF(("UNDO: Push new obj_change at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}
Change *
undo_insert_objects(Diagram *dia, GList *obj_list, int applied)
{
struct InsertObjectsChange *change;
change = g_new0(struct InsertObjectsChange, 1);
change->change.apply = (UndoApplyFunc) insert_objects_apply;
change->change.revert = (UndoRevertFunc) insert_objects_revert;
change->change.free = (UndoFreeFunc) insert_objects_free;
change->layer = dia->data->active_layer;
change->obj_list = obj_list;
change->applied = applied;
DEBUG_PRINTF(("UNDO: Push new insert objects at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}
extern Change *
undo_unconnect(Diagram *dia, DiaObject *obj, Handle *handle)
{
struct UnconnectChange *change;
change = g_new0(struct UnconnectChange, 1);
change->change.apply = (UndoApplyFunc) unconnect_apply;
change->change.revert = (UndoRevertFunc) unconnect_revert;
change->change.free = (UndoFreeFunc) unconnect_free;
change->obj = obj;
change->handle = handle;
change->connectionpoint = handle->connected_to;
DEBUG_PRINTF(("UNDO: Push new unconnect at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}
Change *
undo_reorder_objects(Diagram *dia, GList *changed_list, GList *orig_list)
{
struct ReorderObjectsChange *change;
change = g_new0(struct ReorderObjectsChange, 1);
change->change.apply = (UndoApplyFunc) reorder_objects_apply;
change->change.revert = (UndoRevertFunc) reorder_objects_revert;
change->change.free = (UndoFreeFunc) reorder_objects_free;
change->layer = dia->data->active_layer;
change->changed_list = changed_list;
change->original_objects = orig_list;
change->reordered_objects = g_list_copy(dia->data->active_layer->objects);
DEBUG_PRINTF(("UNDO: Push new reorder objects at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}
Change *
undo_delete_objects(Diagram *dia, GList *obj_list)
{
struct DeleteObjectsChange *change;
change = g_new0(struct DeleteObjectsChange, 1);
change->change.apply = (UndoApplyFunc) delete_objects_apply;
change->change.revert = (UndoRevertFunc) delete_objects_revert;
change->change.free = (UndoFreeFunc) delete_objects_free;
change->layer = dia->data->active_layer;
change->obj_list = obj_list;
change->original_objects = g_list_copy(dia->data->active_layer->objects);
change->applied = 0;
DEBUG_PRINTF(("UNDO: Push new delete objects at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}
extern Change *
undo_move_objects(Diagram *dia, Point *orig_pos, Point *dest_pos,
GList *obj_list)
{
struct MoveObjectsChange *change;
change = g_new0(struct MoveObjectsChange, 1);
change->change.apply = (UndoApplyFunc) move_objects_apply;
change->change.revert = (UndoRevertFunc) move_objects_revert;
change->change.free = (UndoFreeFunc) move_objects_free;
change->orig_pos = orig_pos;
change->dest_pos = dest_pos;
change->obj_list = obj_list;
DEBUG_PRINTF(("UNDO: Push new move objects at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}
Change *
undo_move_object_other_layer(Diagram *dia, GList *selected_list,
gboolean moving_up)
{
MoveObjectToLayerChange *movetolayerchange
= g_new0(MoveObjectToLayerChange, 1);
Change *change = (Change*)movetolayerchange;
change->apply = (UndoApplyFunc) move_object_to_layer_apply;
change->revert = (UndoRevertFunc) move_object_to_layer_revert;
change->free = (UndoFreeFunc) move_object_to_layer_free;
movetolayerchange->orig_layer = dia->data->active_layer;
movetolayerchange->orig_list = g_list_copy(dia->data->active_layer->objects);
movetolayerchange->objects = g_list_copy(selected_list);
movetolayerchange->moving_up = moving_up;
DEBUG_PRINTF(("UNDO: Push new obj_layer_change at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, change);
return change;
}
void
undo_set_transactionpoint(UndoStack *stack)
{
Change *transaction;
if (is_transactionpoint(stack->current_change))
return;
DEBUG_PRINTF(("UNDO: Push new transactionpoint at %d\n", depth(stack)));
transaction = new_transactionpoint();
undo_push_change(stack, transaction);
stack->depth++;
DEBUG_PRINTF(("Increasing stack depth to: %d\n", stack->depth));
if (prefs.undo_depth > 0) {
while (stack->depth > prefs.undo_depth){
undo_delete_lowest_transaction(stack);
}
}
}
Change *
undo_ungroup_objects(Diagram *dia, GList *obj_list, DiaObject *group,
int group_index)
{
struct UngroupObjectsChange *change;
change = g_new0(struct UngroupObjectsChange, 1);
change->change.apply = (UndoApplyFunc) ungroup_objects_apply;
change->change.revert = (UndoRevertFunc) ungroup_objects_revert;
change->change.free = (UndoFreeFunc) ungroup_objects_free;
change->layer = dia->data->active_layer;
change->group = group;
change->obj_list = obj_list;
change->group_index = group_index;
change->applied = 1;
DEBUG_PRINTF(("UNDO: Push new ungroup objects at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}
Change *
undo_move_handle(Diagram *dia,
Handle *handle, DiaObject *obj,
Point orig_pos, Point dest_pos)
{
struct MoveHandleChange *change;
change = g_new0(struct MoveHandleChange, 1);
change->change.apply = (UndoApplyFunc) move_handle_apply;
change->change.revert = (UndoRevertFunc) move_handle_revert;
change->change.free = (UndoFreeFunc) move_handle_free;
change->orig_pos = orig_pos;
change->dest_pos = dest_pos;
change->handle = handle;
change->obj = obj;
DEBUG_PRINTF(("UNDO: Push new move handle at %d\n", depth(dia->undo)));
undo_push_change(dia->undo, (Change *) change);
return (Change *)change;
}