/* === S Y N F I G ========================================================= */
/*! \file valuenodereplace.cpp
** \brief Template File
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** General Public License for more details.
** \endlegal
*/
/* ========================================================================= */
/* === H E A D E R S ======================================================= */
#ifdef USING_PCH
# include "pch.h"
#else
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <synfig/general.h>
#include "valuenodereplace.h"
#include <synfigapp/canvasinterface.h>
#include <synfigapp/localization.h>
#endif
using namespace std;
using namespace etl;
using namespace synfig;
using namespace synfigapp;
using namespace Action;
/* === M A C R O S ========================================================= */
ACTION_INIT(Action::ValueNodeReplace);
ACTION_SET_NAME(Action::ValueNodeReplace,"ValueNodeReplace");
ACTION_SET_LOCAL_NAME(Action::ValueNodeReplace,N_("Replace ValueNode"));
ACTION_SET_TASK(Action::ValueNodeReplace,"replace");
ACTION_SET_CATEGORY(Action::ValueNodeReplace,Action::CATEGORY_VALUENODE|Action::CATEGORY_DRAG);
ACTION_SET_PRIORITY(Action::ValueNodeReplace,0);
ACTION_SET_VERSION(Action::ValueNodeReplace,"0.0");
ACTION_SET_CVS_ID(Action::ValueNodeReplace,"$Id$");
/* === G L O B A L S ======================================================= */
/* === P R O C E D U R E S ================================================= */
void swap_guid(const ValueNode::Handle& a,const ValueNode::Handle& b)
{
synfig::GUID old_a(a->get_guid());
a->set_guid(synfig::GUID());
synfig::GUID old_b(b->get_guid());
b->set_guid(synfig::GUID());
a->set_guid(old_b);
b->set_guid(old_a);
}
/* === M E T H O D S ======================================================= */
Action::ValueNodeReplace::ValueNodeReplace():
is_undoable(true)
{
}
Action::ParamVocab
Action::ValueNodeReplace::get_param_vocab()
{
ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
ret.push_back(ParamDesc("dest",Param::TYPE_VALUENODE)
.set_local_name(_("Destination ValueNode"))
.set_desc(_("ValueNode to replaced"))
);
ret.push_back(ParamDesc("src",Param::TYPE_VALUENODE)
.set_local_name(_("Source ValueNode"))
.set_desc(_("ValueNode that will replace the destination"))
);
return ret;
}
bool
Action::ValueNodeReplace::is_candidate(const ParamList &x)
{
return candidate_check(get_param_vocab(),x);
}
bool
Action::ValueNodeReplace::set_param(const synfig::String& name, const Action::Param ¶m)
{
if(name=="dest" && param.get_type()==Param::TYPE_VALUENODE)
{
dest_value_node=param.get_value_node();
return true;
}
if(name=="src" && param.get_type()==Param::TYPE_VALUENODE)
{
src_value_node=param.get_value_node();
return true;
}
return Action::CanvasSpecific::set_param(name,param);
}
bool
Action::ValueNodeReplace::is_ready()const
{
if(!dest_value_node || !src_value_node)
return false;
return Action::CanvasSpecific::is_ready();
}
void
Action::ValueNodeReplace::perform()
{
set_dirty(true);
if(dest_value_node == src_value_node)
throw Error(_("Attempted to replace valuenode with itself"));
if(dest_value_node->get_type() != src_value_node->get_type())
throw Error(_("You cannot replace ValueNodes with different types!"));
is_undoable=true;
if(!src_value_node->is_exported())
{
src_value_node->set_id(dest_value_node->get_id());
src_value_node->set_parent_canvas(dest_value_node->get_parent_canvas());
ValueNode::RHandle value_node(src_value_node);
if(!value_node.runique() && value_node.rcount()>1)
is_undoable=false; // !!!
}
else
is_undoable=false; // !!!
if(!is_undoable)
synfig::warning("ValueNodeReplace: Circumstances make undoing this action impossible at the current time. :(");
ValueNode::RHandle value_node(dest_value_node);
if(value_node.runique() || value_node.rcount()<=1)
throw Error(_("Nothing to replace."));
int replacements;
replacements=value_node->replace(src_value_node);
assert(replacements);
if(!replacements)
throw Error(_("Action Failure. This is a bug. Please report it."));
swap_guid(dest_value_node,src_value_node);
//src_value_node->parent_set.swap(dest_value_node->parent_set);
// synfig::info(get_local_name()+_(": ")+strprintf(_("Replaced %d ValueNode instances"),replacements));
// Signal that a layer has been inserted
if(get_canvas_interface())
{
get_canvas_interface()->signal_value_node_replaced()(dest_value_node,src_value_node);
}
else synfig::warning("CanvasInterface not set on action");
}
void
Action::ValueNodeReplace::undo()
{
if(!is_undoable)
throw Error(_("This action cannot be undone under these circumstances."));
set_dirty(true);
if(dest_value_node == src_value_node)
throw Error(_("Attempted to replace valuenode with itself"));
if(dest_value_node->get_type() != src_value_node->get_type())
throw Error(_("You cannot replace ValueNodes with different types!"));
ValueNode::RHandle value_node(src_value_node);
if(value_node.runique() || value_node.rcount()<=1)
throw Error(_("Nothing to replace."));
int replacements;
replacements=value_node->replace(dest_value_node);
assert(replacements);
if(!replacements)
throw Error(_("Action Failure. This is a bug. Please report it."));
swap_guid(dest_value_node,src_value_node);
//src_value_node->parent_set.swap(dest_value_node->parent_set);
// synfig::info(get_local_name()+_(": (Undo) ")+strprintf(_("Replaced %d ValueNode instances"),replacements));
src_value_node->set_id(String());
src_value_node->set_parent_canvas(0);
// Signal that a layer has been inserted
if(get_canvas_interface())
{
get_canvas_interface()->signal_value_node_replaced()(src_value_node,dest_value_node);
}
else synfig::warning("CanvasInterface not set on action");
}