gtk2_ardour/port_matrix_grid.h

   1 /*
   2     Copyright (C) 2002-2009 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifndef  __gtk_ardour_port_matrix_grid_h__
  21 #define  __gtk_ardour_port_matrix_grid_h__
  22
  23 #include <string>
  24 #include <vector>
  25 #include <boost/shared_ptr.hpp>
  26 #include "ardour/types.h"
  27 #include "port_matrix_component.h"
  28 #include "port_matrix_types.h"
  29 #include "port_group.h"
  30
  31 class PortMatrix;
  32 class PortMatrixBody;
  33
  34 namespace ARDOUR {
  35         class Bundle;
  36 }
  37
  38 /**  The grid part of the port matrix */
  39 class PortMatrixGrid : public PortMatrixComponent
  40 {
  41 public:
  42         PortMatrixGrid (PortMatrix *, PortMatrixBody *);
  43
  44         void button_press (double, double, int, uint32_t, guint);
  45         void button_release (double, double, int, uint32_t, guint);
  46         void motion (double, double);
  47
  48         double component_to_parent_x (double x) const;
  49         double parent_to_component_x (double x) const;
  50         double component_to_parent_y (double y) const;
  51         double parent_to_component_y (double y) const;
  52         void mouseover_changed (std::list<PortMatrixNode> const &);
  53         void draw_extra (cairo_t *);
  54
  55 private:
  56
  57         void compute_dimensions ();
  58         void render (cairo_t *);
  59         void render_group_pair (cairo_t *, boost::shared_ptr<const PortGroup>, boost::shared_ptr<const PortGroup>, uint32_t, uint32_t);
  60
  61         PortMatrixNode position_to_node (double, double) const;
  62         void queue_draw_for (std::list<PortMatrixNode> const &);
  63         void draw_association_indicator (cairo_t *, uint32_t, uint32_t, double p = 1);
  64         void draw_empty_square (cairo_t *, uint32_t, uint32_t);
  65         void draw_non_connectable_indicator (cairo_t *, uint32_t, uint32_t);
  66         std::list<PortMatrixNode> nodes_on_line (int, int, int, int) const;
  67         void set_association (PortMatrixNode, bool);
  68         bool toggle_state (PortMatrixNode::State) const;
  69
  70         bool _dragging;
  71         bool _drag_valid;
  72         bool _moved;
  73         int _drag_start_x;
  74         int _drag_start_y;
  75         int _drag_x;
  76         int _drag_y;
  77 };
  78
  79 #endif