source: synfigstudio/trunk/fuentes/src/synfigapp/actions/layerpaint.h @ 481

/* === S Y N F I G ========================================================= */
/*!     \file layerpaint.h
**      \brief Template File
**
**      $Id$
**
**      \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_APP_ACTION_LAYERPAINT_H
#define __SYNFIG_APP_ACTION_LAYERPAINT_H

/* === H E A D E R S ======================================================= */

#include <synfig/layers/layer_bitmap.h>
#include <synfigapp/action.h>
#include <brushlib.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 synfigapp {

class Instance;

namespace Action {

class LayerPaint :
        public Undoable,
        public CanvasSpecific
{
public:
        struct PaintPoint {
                float x, y, pressure;
                double dtime;
                PaintPoint(): x(0), y(0), pressure(0), dtime(0) { }
                PaintPoint(float x, float y, float pressure, double dtime):
                        x(x), y(y), pressure(pressure), dtime(dtime) { }
        };

        class PaintStroke {
        private:
                static PaintStroke *first, *last;
                PaintStroke *prev, *next;
                PaintStroke *prevSameLayer, *nextSameLayer;

                etl::handle<synfig::Layer_Bitmap> layer;
                brushlib::Brush brush_;

                synfig::Surface surface;
                synfig::Point tl;
                synfig::Point br;

                synfig::Point new_tl;
                synfig::Point new_br;

                std::vector<PaintPoint> points;
                bool prepared;
                bool applied;

                void copy_to_cairo_surface(const synfig::Surface &surface, synfig::CairoSurface &csurface);
                void paint_prev(synfig::Surface &surface);
                void paint_self(synfig::Surface &surface);
                void reset(const PaintPoint &point);

        public:
                PaintStroke();
                ~PaintStroke();

                void set_layer(etl::handle<synfig::Layer_Bitmap> layer) { assert(!prepared); this->layer = layer; }
                etl::handle<synfig::Layer_Bitmap> get_layer() const { return layer; }

                brushlib::Brush &brush() { assert(!prepared); return brush_; }
                const brushlib::Brush &get_brush() const { return brush_; }

                bool is_prepared() const { return prepared; }

                void prepare();
                void undo();
                void apply();
                void add_point_and_apply(const PaintPoint &point);
        };

        PaintStroke stroke;

        LayerPaint();

        static ParamVocab get_param_vocab();
        static bool is_candidate(const ParamList &x);

        virtual bool set_param(const synfig::String& name, const Param &);
        virtual bool is_ready()const;

        virtual void perform();
        virtual void undo();

        ACTION_MODULE_EXT
};

}; // END of namespace action
}; // END of namespace studio

/* === E N D =============================================================== */

#endif