[synfig.git] /

/* === S Y N F I G ========================================================= */
/*!     \file activepointremove.cpp
**      \brief Template File
**
**      $Id$
**
**      \legal
**      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**  Copyright (c) 2008 Chris Moore
**
**      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 "activepointremove.h"
#include <synfigapp/canvasinterface.h>

#include <synfigapp/general.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::ActivepointRemove);
ACTION_SET_NAME(Action::ActivepointRemove,"activepoint_remove");
ACTION_SET_LOCAL_NAME(Action::ActivepointRemove,N_("Remove Activepoint"));
ACTION_SET_TASK(Action::ActivepointRemove,"remove");
ACTION_SET_CATEGORY(Action::ActivepointRemove,Action::CATEGORY_ACTIVEPOINT);
ACTION_SET_PRIORITY(Action::ActivepointRemove,0);
ACTION_SET_VERSION(Action::ActivepointRemove,"0.0");
ACTION_SET_CVS_ID(Action::ActivepointRemove,"$Id$");

/* === G L O B A L S ======================================================= */

/* === P R O C E D U R E S ================================================= */

/* === M E T H O D S ======================================================= */

Action::ActivepointRemove::ActivepointRemove()
{
        activepoint.set_time(Time::begin()-1);
        set_dirty(true);
}

Action::ParamVocab
Action::ActivepointRemove::get_param_vocab()
{
        ParamVocab ret(Action::CanvasSpecific::get_param_vocab());

        ret.push_back(ParamDesc("value_desc",Param::TYPE_VALUEDESC)
                .set_local_name(_("ValueDesc"))
        );

        ret.push_back(ParamDesc("activepoint",Param::TYPE_ACTIVEPOINT)
                .set_local_name(_("Activepoint"))
                .set_desc(_("Activepoint to be changed"))
        );

        return ret;
}

bool
Action::ActivepointRemove::is_candidate(const ParamList &x)
{
        if (!candidate_check(get_param_vocab(),x))
                return false;

        ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());

        return (value_desc.parent_is_value_node() &&
                        // We need a dynamic list.
                        ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node()));
}

bool
Action::ActivepointRemove::set_param(const synfig::String& name, const Action::Param &param)
{
        if(name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
        {
                ValueDesc value_desc(param.get_value_desc());

                if(!value_desc.parent_is_value_node())
                        return false;

                value_node=ValueNode_DynamicList::Handle::cast_dynamic(value_desc.get_parent_value_node());

                if(!value_node)
                        return false;

                index=value_desc.get_index();

                return true;
        }
        if(name=="activepoint" && param.get_type()==Param::TYPE_ACTIVEPOINT)
        {
                activepoint=param.get_activepoint();

                return true;
        }

        return Action::CanvasSpecific::set_param(name,param);
}

bool
Action::ActivepointRemove::is_ready()const
{
        if(!value_node || activepoint.get_time()==(Time::begin()-1))
                return false;
        return Action::CanvasSpecific::is_ready();
}

void
Action::ActivepointRemove::perform()
{
        ValueNode_DynamicList::ListEntry::ActivepointList::iterator iter;

        try { iter=value_node->list[index].find(activepoint); }
        catch(synfig::Exception::NotFound)
        {
                throw Error(_("Unable to find activepoint"));
        }

        value_node->list[index].erase(activepoint);
        value_node->changed();

        /*
        // Signal that a layer has been inserted
        if(get_canvas_interface())
        {
                get_canvas_interface()->signal_value_node_changed()(value_node);
        }
        else synfig::warning("CanvasInterface not set on action");
        */
}

void
Action::ActivepointRemove::undo()
{
        try { value_node->list[index].find(activepoint.get_time()); throw Error(_("A Activepoint already exists at this point in time"));}
        catch(synfig::Exception::NotFound) { }

        try { if(value_node->list[index].find(activepoint)!=value_node->list[index].timing_info.end()) throw Error(_("This activepoint is already in the ValueNode"));}
        catch(synfig::Exception::NotFound) { }

        value_node->list[index].add(activepoint);
        value_node->changed();
        /*
        // Signal that a layer has been inserted
        if(get_canvas_interface())
        {
                get_canvas_interface()->signal_value_node_changed()(value_node);
        }
        else synfig::warning("CanvasInterface not set on action");
        */
}