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 "ardour/types.h"
  24 #include "port_matrix_grid.h"
  25 #include "port_matrix.h"
  26
  27 PortMatrixGrid::PortMatrixGrid (PortMatrix* p, PortMatrixBody* b)
  28         : PortMatrixComponent (b),
  29           _port_matrix (p)
  30 {
  31
  32 }
  33
  34 void
  35 PortMatrixGrid::compute_dimensions ()
  36 {
  37         _width = 0;
  38         ARDOUR::BundleList const c = _body->column_ports().bundles();
  39         for (ARDOUR::BundleList::const_iterator i = c.begin(); i != c.end(); ++i) {
  40                 _width += (*i)->nchannels() * column_width();
  41         }
  42
  43         _height = 0;
  44         ARDOUR::BundleList const r = _body->row_ports().bundles();
  45         for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
  46                 _height += (*i)->nchannels() * row_height();
  47         }
  48 }
  49
  50
  51 void
  52 PortMatrixGrid::render (cairo_t* cr)
  53 {
  54         /* BACKGROUND */
  55
  56         set_source_rgb (cr, background_colour());
  57         cairo_rectangle (cr, 0, 0, _width, _height);
  58         cairo_fill (cr);
  59
  60         /* VERTICAL GRID LINES */
  61
  62         set_source_rgb (cr, grid_colour());
  63         uint32_t x = 0;
  64         ARDOUR::BundleList const c = _body->column_ports().bundles();
  65         for (ARDOUR::BundleList::size_type i = 0; i < c.size(); ++i) {
  66
  67                 cairo_set_line_width (cr, thin_grid_line_width());
  68                 for (uint32_t j = 1; j < c[i]->nchannels(); ++j) {
  69                         x += column_width();
  70                         cairo_move_to (cr, x, 0);
  71                         cairo_line_to (cr, x, _height);
  72                         cairo_stroke (cr);
  73                 }
  74
  75                 if (i < (c.size() - 1)) {
  76                         x += column_width();
  77                         cairo_set_line_width (cr, thick_grid_line_width());
  78                         cairo_move_to (cr, x, 0);
  79                         cairo_line_to (cr, x, _height);
  80                         cairo_stroke (cr);
  81                 }
  82         }
  83
  84         uint32_t grid_width = x + column_width();
  85
  86         /* HORIZONTAL GRID LINES */
  87
  88         uint32_t y = 0;
  89         ARDOUR::BundleList const r = _body->row_ports().bundles();
  90         for (ARDOUR::BundleList::size_type i = 0; i < r.size(); ++i) {
  91
  92                 cairo_set_line_width (cr, thin_grid_line_width());
  93                 for (uint32_t j = 1; j < r[i]->nchannels(); ++j) {
  94                         y += row_height();
  95                         cairo_move_to (cr, 0, y);
  96                         cairo_line_to (cr, grid_width, y);
  97                         cairo_stroke (cr);
  98                 }
  99
 100                 if (i < (r.size() - 1)) {
 101                         y += row_height();
 102                         cairo_set_line_width (cr, thick_grid_line_width());
 103                         cairo_move_to (cr, 0, y);
 104                         cairo_line_to (cr, grid_width, y);
 105                         cairo_stroke (cr);
 106                 }
 107         }
 108
 109         /* ASSOCIATION INDICATORS */
 110
 111         uint32_t bx = 0;
 112         uint32_t by = 0;
 113
 114         for (ARDOUR::BundleList::const_iterator i = c.begin(); i < c.end(); ++i) {
 115                 by = 0;
 116
 117                 for (ARDOUR::BundleList::const_iterator j = r.begin(); j < r.end(); ++j) {
 118
 119                         x = bx;
 120                         for (uint32_t k = 0; k < (*i)->nchannels (); k++) {
 121
 122                                 y = by;
 123                                 for (uint32_t l = 0; l < (*j)->nchannels (); ++l) {
 124
 125                                         PortMatrix::State const s = _port_matrix->get_state (*j, l, *i, k);
 126
 127                                         switch (s) {
 128                                         case PortMatrix::ASSOCIATED:
 129                                                 set_source_rgba (cr, association_colour(), 0.5);
 130                                                 cairo_arc (
 131                                                         cr,
 132                                                         x + column_width() / 2,
 133                                                         y + column_width() / 2,
 134                                                         (column_width() - (2 * connection_indicator_pad())) / 2,
 135                                                         0,
 136                                                         2 * M_PI
 137                                                         );
 138
 139                                                 cairo_fill (cr);
 140                                                 break;
 141
 142                                         case PortMatrix::UNKNOWN:
 143                                                 set_source_rgba (cr, unknown_colour(), 0.5);
 144                                                 cairo_rectangle (
 145                                                         cr,
 146                                                         x + thick_grid_line_width(),
 147                                                         y + thick_grid_line_width(),
 148                                                         column_width() - 2 * thick_grid_line_width(),
 149                                                         row_height() - 2 * thick_grid_line_width()
 150                                                         );
 151                                                 cairo_fill (cr);
 152                                                 break;
 153
 154                                         case PortMatrix::NOT_ASSOCIATED:
 155                                                 break;
 156                                         }
 157
 158                                         y += row_height();
 159                                 }
 160                                 x += column_width();
 161                         }
 162
 163                         by += (*j)->nchannels () * row_height();
 164                 }
 165
 166                 bx += (*i)->nchannels () * column_width();
 167         }
 168 }
 169
 170
 171 void
 172 PortMatrixGrid::button_press (double x, double y, int b)
 173 {
 174         uint32_t grid_column = x / column_width ();
 175         uint32_t grid_row = y / row_height ();
 176
 177         boost::shared_ptr<ARDOUR::Bundle> our_bundle;
 178         uint32_t our_channel = 0;
 179         boost::shared_ptr<ARDOUR::Bundle> other_bundle;
 180         uint32_t other_channel = 0;
 181
 182         ARDOUR::BundleList const r = _body->row_ports().bundles();
 183         for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
 184                 if (grid_row < (*i)->nchannels ()) {
 185                         our_bundle = *i;
 186                         our_channel = grid_row;
 187                         break;
 188                 } else {
 189                         grid_row -= (*i)->nchannels ();
 190                 }
 191         }
 192
 193         ARDOUR::BundleList const c = _body->column_ports().bundles();
 194         for (ARDOUR::BundleList::const_iterator i = c.begin(); i != c.end(); ++i) {
 195                 if (grid_column < (*i)->nchannels ()) {
 196                         other_bundle = *i;
 197                         other_channel = grid_column;
 198                         break;
 199                 } else {
 200                         grid_column -= (*i)->nchannels ();
 201                 }
 202         }
 203
 204
 205         if (our_bundle && other_bundle) {
 206
 207                 PortMatrix::State const s = _port_matrix->get_state (
 208                         our_bundle, our_channel, other_bundle, other_channel
 209                         );
 210
 211                 if (s == PortMatrix::ASSOCIATED || s == PortMatrix::NOT_ASSOCIATED) {
 212
 213                         bool const n = !(s == PortMatrix::ASSOCIATED);
 214
 215                         _port_matrix->set_state (
 216                                 our_bundle, our_channel, other_bundle, other_channel,
 217                                 n, 0
 218                                 );
 219                 }
 220
 221                 require_render ();
 222                 _body->queue_draw ();
 223         }
 224 }
 225
 226