gtk2_ardour/port_matrix_grid.cc

   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 #include <iostream>
  21 #include <cairo/cairo.h>
  22 #include "ardour/bundle.h"
  23 #include "port_matrix_grid.h"
  24 #include "port_matrix.h"
  25
  26 PortMatrixGrid::PortMatrixGrid (PortMatrix* p, PortMatrixBody* b)
  27         : PortMatrixComponent (b),
  28           _port_matrix (p)
  29 {
  30
  31 }
  32
  33 void
  34 PortMatrixGrid::compute_dimensions ()
  35 {
  36         _width = 0;
  37         for (uint32_t i = 0; i < _body->column_bundles().size(); ++i) {
  38                 _width += _body->column_bundles()[i]->nchannels() * column_width();
  39         }
  40
  41         _height = 0;
  42         for (uint32_t i = 0; i < _body->row_bundles().size(); ++i) {
  43                 _height += _body->row_bundles()[i]->nchannels() * row_height();
  44         }
  45 }
  46
  47
  48 void
  49 PortMatrixGrid::render (cairo_t* cr)
  50 {
  51         /* BACKGROUND */
  52
  53         set_source_rgb (cr, background_colour());
  54         cairo_rectangle (cr, 0, 0, _width, _height);
  55         cairo_fill (cr);
  56
  57         /* VERTICAL GRID LINES */
  58
  59         set_source_rgb (cr, grid_colour());
  60         uint32_t x = 0;
  61         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::size_type i = 0; i < _body->column_bundles().size(); ++i) {
  62
  63                 cairo_set_line_width (cr, thin_grid_line_width());
  64                 for (uint32_t j = 1; j < _body->column_bundles()[i]->nchannels(); ++j) {
  65                         x += column_width();
  66                         cairo_move_to (cr, x, 0);
  67                         cairo_line_to (cr, x, _height);
  68                         cairo_stroke (cr);
  69                 }
  70
  71                 if (i < (_body->column_bundles().size() - 1)) {
  72                         x += column_width();
  73                         cairo_set_line_width (cr, thick_grid_line_width());
  74                         cairo_move_to (cr, x, 0);
  75                         cairo_line_to (cr, x, _height);
  76                         cairo_stroke (cr);
  77                 }
  78         }
  79
  80         uint32_t grid_width = x + column_width();
  81
  82         /* HORIZONTAL GRID LINES */
  83
  84         uint32_t y = 0;
  85         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::size_type i = 0; i < _body->row_bundles().size(); ++i) {
  86
  87                 cairo_set_line_width (cr, thin_grid_line_width());
  88                 for (uint32_t j = 1; j < _body->row_bundles()[i]->nchannels(); ++j) {
  89                         y += row_height();
  90                         cairo_move_to (cr, 0, y);
  91                         cairo_line_to (cr, grid_width, y);
  92                         cairo_stroke (cr);
  93                 }
  94
  95                 if (i < (_body->row_bundles().size() - 1)) {
  96                         y += row_height();
  97                         cairo_set_line_width (cr, thick_grid_line_width());
  98                         cairo_move_to (cr, 0, y);
  99                         cairo_line_to (cr, grid_width, y);
 100                         cairo_stroke (cr);
 101                 }
 102         }
 103
 104         /* ASSOCIATION INDICATORS */
 105
 106         uint32_t bx = 0;
 107         uint32_t by = 0;
 108
 109         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator i = _body->column_bundles().begin(); i < _body->column_bundles().end(); ++i) {
 110                 by = 0;
 111
 112                 for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator j = _body->row_bundles().begin(); j < _body->row_bundles().end(); ++j) {
 113
 114                         x = bx;
 115                         for (uint32_t k = 0; k < (*i)->nchannels (); k++) {
 116
 117                                 y = by;
 118                                 for (uint32_t l = 0; l < (*j)->nchannels (); ++l) {
 119
 120                                         if (_port_matrix->get_state (*j, l, *i, k)) {
 121
 122                                                 set_source_rgba (cr, association_colour(), 0.5);
 123                                                 cairo_arc (
 124                                                         cr,
 125                                                         x + column_width() / 2,
 126                                                         y + column_width() / 2,
 127                                                         (column_width() - (2 * connection_indicator_pad())) / 2,
 128                                                         0,
 129                                                         2 * M_PI
 130                                                         );
 131
 132                                                 cairo_fill (cr);
 133
 134                                         }
 135                                         y += row_height();
 136                                 }
 137                                 x += column_width();
 138                         }
 139
 140                         by += (*j)->nchannels () * row_height();
 141                 }
 142
 143                 bx += (*i)->nchannels () * column_width();
 144         }
 145 }
 146
 147
 148 void
 149 PortMatrixGrid::button_press (double x, double y, int b)
 150 {
 151         uint32_t grid_column = x / column_width ();
 152         uint32_t grid_row = y / row_height ();
 153
 154         boost::shared_ptr<ARDOUR::Bundle> our_bundle;
 155         uint32_t our_channel = 0;
 156         boost::shared_ptr<ARDOUR::Bundle> other_bundle;
 157         uint32_t other_channel = 0;
 158
 159         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator i = _body->row_bundles().begin(); i != _body->row_bundles().end(); ++i) {
 160                 if (grid_row < (*i)->nchannels ()) {
 161                         our_bundle = *i;
 162                         our_channel = grid_row;
 163                         break;
 164                 } else {
 165                         grid_row -= (*i)->nchannels ();
 166                 }
 167         }
 168
 169         for (std::vector<boost::shared_ptr<ARDOUR::Bundle> >::const_iterator i = _body->column_bundles().begin(); i != _body->column_bundles().end(); ++i) {
 170                 if (grid_column < (*i)->nchannels ()) {
 171                         other_bundle = *i;
 172                         other_channel = grid_column;
 173                         break;
 174                 } else {
 175                         grid_column -= (*i)->nchannels ();
 176                 }
 177         }
 178
 179         if (our_bundle && other_bundle) {
 180
 181                 bool const s = _port_matrix->get_state (
 182                         our_bundle, our_channel, other_bundle, other_channel
 183                         );
 184
 185                 _port_matrix->set_state (
 186                         our_bundle, our_channel, other_bundle, other_channel,
 187                         !s, 0
 188                         );
 189
 190                 require_render ();
 191                 _body->queue_draw ();
 192         }
 193 }
 194
 195