port_matrix_grid.h

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/*
 * Copyright (C) 2009-2011 Carl Hetherington <carl@carlh.net>
 *
 * This program 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 program 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.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#pragma once
 
#include <memory>
#include <string>
#include <vector>
 
#include "ardour/types.h"
#include "port_matrix_component.h"
#include "port_matrix_types.h"
#include "port_group.h"
 
class PortMatrix;
class PortMatrixBody;
 
class PortMatrixGrid : public PortMatrixComponent
{
public:
        PortMatrixGrid (PortMatrix *, PortMatrixBody *);
 
        void button_press (double, double, GdkEventButton *);
        void button_release (double, double, GdkEventButton *);
        void motion (double, double);
 
        double component_to_parent_x (double x) const;
        double parent_to_component_x (double x) const;
        double component_to_parent_y (double y) const;
        double parent_to_component_y (double y) const;
        void mouseover_changed (std::list<PortMatrixNode> const &);
        void draw_extra (cairo_t *);
 
private:
 
        void compute_dimensions ();
        void render (cairo_t *);
        void render_group_pair (cairo_t *, std::shared_ptr<const PortGroup>, std::shared_ptr<const PortGroup>, uint32_t, uint32_t);
 
        PortMatrixNode position_to_node (double, double) const;
        void queue_draw_for (std::list<PortMatrixNode> const &);
        void draw_association_indicator (cairo_t *, uint32_t, uint32_t, double p = 1);
        void draw_empty_square (cairo_t *, uint32_t, uint32_t);
        void draw_non_connectable_indicator (cairo_t *, uint32_t, uint32_t);
        std::list<PortMatrixNode> nodes_on_line (int, int, int, int) const;
        void set_association (PortMatrixNode, bool);
        bool toggle_state (PortMatrixNode::State) const;
 
        bool _dragging;
        bool _drag_valid;
        bool _moved;
        int _drag_start_x;
        int _drag_start_y;
        int _drag_x;
        int _drag_y;
};