gtk2_ardour/port_matrix_body.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_body_h__
  21 #define __gtk_ardour_port_matrix_body_h__
  22
  23 #include <gtkmm/eventbox.h>
  24 #include "port_group.h"
  25 #include "port_matrix_types.h"
  26
  27 class PortMatrix;
  28 class PortMatrixColumnLabels;
  29 class PortMatrixRowLabels;
  30 class PortMatrixGrid;
  31 class PortMatrixComponent;
  32
  33 /** The main body of the port matrix.  It is made up of three parts:
  34  *  column labels, grid and row labels, each drawn using cairo.
  35  */
  36 class PortMatrixBody : public Gtk::EventBox
  37 {
  38 public:
  39         PortMatrixBody (PortMatrix *);
  40         ~PortMatrixBody ();
  41
  42         void setup ();
  43
  44         uint32_t full_scroll_width ();
  45         uint32_t alloc_scroll_width ();
  46         uint32_t full_scroll_height ();
  47         uint32_t alloc_scroll_height ();
  48
  49         uint32_t xoffset () const {
  50                 return _xoffset;
  51         }
  52         void set_xoffset (uint32_t);
  53         uint32_t yoffset () const {
  54                 return _yoffset;
  55         }
  56         void set_yoffset (uint32_t);
  57
  58         void rebuild_and_draw_grid ();
  59
  60         void set_mouseover (PortMatrixNode const &);
  61         void set_mouseover (std::list<PortMatrixNode> const &);
  62         std::list<PortMatrixNode> mouseover () const {
  63                 return _mouseover;
  64         }
  65
  66         void highlight_associated_channels (int, ARDOUR::BundleChannel);
  67         void component_size_changed ();
  68         std::pair<uint32_t, uint32_t> max_size () const;
  69
  70         uint32_t column_labels_border_x () const;
  71         uint32_t column_labels_height () const;
  72
  73         sigc::signal<void> DimensionsChanged;
  74
  75 protected:
  76         bool on_expose_event (GdkEventExpose *);
  77         void on_size_request (Gtk::Requisition *);
  78         void on_size_allocate (Gtk::Allocation &);
  79         bool on_button_press_event (GdkEventButton *);
  80         bool on_button_release_event (GdkEventButton *);
  81         bool on_leave_notify_event (GdkEventCrossing *);
  82         bool on_motion_notify_event (GdkEventMotion *);
  83
  84 private:
  85         void compute_rectangles ();
  86         void rebuild_and_draw_column_labels ();
  87         void rebuild_and_draw_row_labels ();
  88         void update_bundles ();
  89         void set_cairo_clip (cairo_t *, Gdk::Rectangle const &) const;
  90
  91         PortMatrix* _matrix;
  92         PortMatrixColumnLabels* _column_labels;
  93         PortMatrixRowLabels* _row_labels;
  94         PortMatrixGrid* _grid;
  95         std::list<PortMatrixComponent*> _components;
  96
  97         uint32_t _alloc_width; ///< allocated width
  98         uint32_t _alloc_height; ///< allocated height
  99         uint32_t _xoffset;
 100         uint32_t _yoffset;
 101         uint32_t _column_labels_border_x;
 102         uint32_t _column_labels_height;
 103
 104         std::list<PortMatrixNode> _mouseover;
 105         bool _ignore_component_size_changed;
 106
 107         PBD::ScopedConnectionList _bundle_connections;
 108 };
 109
 110 #endif