/* === S Y N F I G ========================================================= */
/*! \file layer_switch.h
** \brief Header file for implementation of the "Switch" layer
**
** $Id$
**
** \legal
** ......... ... 2014 Ivan Mahonin
**
** 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
*/
/* ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_LAYER_SWITCH_H
#define __SYNFIG_LAYER_SWITCH_H
/* === H E A D E R S ======================================================= */
#include "layer_pastecanvas.h"
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
namespace synfig {
/*! \class Layer_Switch
** \brief Class of the Switch layer.
*/
class Layer_Switch : public Layer_PasteCanvas
{
//! Layer module: defines the needed members to belong to a layer's factory.
SYNFIG_LAYER_MODULE_EXT
private:
//! Parameter: (String) Active Layer Name
ValueBase param_layer_name;
//! Parameter: (int) Active Layer Depth
ValueBase param_layer_depth;
mutable std::set<String> last_possible_layers;
mutable std::set<String> last_existant_layers;
sigc::signal<void> signal_possible_layers_changed_;
void possible_layers_changed();
public:
//! Default constructor
Layer_Switch();
//! Destructor
virtual ~Layer_Switch();
//! Returns a string with the localized name of this layer
virtual String get_local_name()const;
//! Sets the parameter described by \a param to \a value. \see Layer::set_param
virtual bool set_param(const String & param, const synfig::ValueBase &value);
//! Get the value of the specified parameter. \see Layer::get_param
virtual ValueBase get_param(const String & param)const;
//! Gets the parameter vocabulary
virtual Vocab get_param_vocab()const;
Layer::Handle get_current_layer()const;
sigc::signal<void>& signal_possible_layers_changed() { return signal_possible_layers_changed_; }
virtual void on_childs_changed();
virtual void on_static_param_changed(const String ¶m);
virtual void on_dynamic_param_changed(const String ¶m);
virtual void on_possible_layers_changed() { }
void get_existant_layers(std::set<String> &x) const;
void get_possible_layers(std::set<String> &x) const;
void get_possible_new_layers(std::set<String> &x) const;
void get_impossible_existant_layers(std::set<String> &x) const;
//! Sets z_range* fields of specified ContextParams \a cp
virtual void apply_z_range_to_params(ContextParams &cp)const;
}; // END of class Layer_Switch
}; // END of namespace synfig
/* === E N D =============================================================== */
#endif