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 PortMatrixNode
 172 PortMatrixGrid::position_to_node (double x, double y) const
 173 {
 174         return PortMatrixNode (
 175                 position_to_channel (y, _body->row_ports().bundles(), row_height()),
 176                 position_to_channel (x, _body->column_ports().bundles(), column_width())
 177                 );
 178 }
 179
 180
 181 PortMatrixBundleChannel
 182 PortMatrixGrid::position_to_channel (double p, ARDOUR::BundleList const& bundles, double inc) const
 183 {
 184         uint32_t pos = p / inc;
 185
 186         for (ARDOUR::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
 187                 if (pos < (*i)->nchannels()) {
 188                         return PortMatrixBundleChannel (*i, pos);
 189                 } else {
 190                         pos -= (*i)->nchannels();
 191                 }
 192         }
 193
 194         return PortMatrixBundleChannel (boost::shared_ptr<ARDOUR::Bundle> (), 0);
 195 }
 196
 197
 198 double
 199 PortMatrixGrid::channel_position (
 200         PortMatrixBundleChannel bc,
 201         ARDOUR::BundleList const& bundles,
 202         double inc) const
 203 {
 204         double p = 0;
 205
 206         ARDOUR::BundleList::const_iterator i = bundles.begin ();
 207         while (i != bundles.end() && *i != bc.bundle) {
 208                 p += inc * (*i)->nchannels();
 209                 ++i;
 210         }
 211
 212         if (i == bundles.end()) {
 213                 return 0;
 214         }
 215
 216         p += inc * bc.channel;
 217
 218         return p;
 219 }
 220
 221 void
 222 PortMatrixGrid::button_press (double x, double y, int b)
 223 {
 224         PortMatrixNode const node = position_to_node (x, y);
 225
 226         if (node.row.bundle && node.column.bundle) {
 227
 228                 PortMatrix::State const s = _port_matrix->get_state (
 229                         node.row.bundle, node.row.channel, node.column.bundle, node.column.channel
 230                         );
 231
 232
 233                 if (s == PortMatrix::ASSOCIATED || s == PortMatrix::NOT_ASSOCIATED) {
 234
 235                         bool const n = !(s == PortMatrix::ASSOCIATED);
 236
 237                         _port_matrix->set_state (
 238                                 node.row.bundle, node.row.channel,
 239                                 node.column.bundle, node.column.channel,
 240                                 n, 0
 241                                 );
 242                 }
 243
 244                 require_render ();
 245                 _body->queue_draw ();
 246         }
 247 }
 248
 249 void
 250 PortMatrixGrid::draw_extra (cairo_t* cr)
 251 {
 252         set_source_rgba (cr, mouseover_line_colour(), 0.3);
 253         cairo_set_line_width (cr, mouseover_line_width());
 254
 255         if (_body->mouseover().row.bundle) {
 256
 257                 double const y = component_to_parent_y (
 258                         channel_position (_body->mouseover().row, _body->row_ports().bundles(), row_height()) + row_height() / 2
 259                         );
 260
 261                 cairo_move_to (cr, _parent_rectangle.get_x(), y);
 262                 cairo_line_to (cr, _parent_rectangle.get_x() + _parent_rectangle.get_width(), y);
 263                 cairo_stroke (cr);
 264         }
 265
 266         if (_body->mouseover().column.bundle) {
 267
 268                 double const x = component_to_parent_x (
 269                         channel_position (_body->mouseover().column, _body->column_ports().bundles(), column_width()) + column_width() / 2
 270                         );
 271
 272                 cairo_move_to (cr, x, _parent_rectangle.get_y());
 273                 cairo_line_to (cr, x, _parent_rectangle.get_y() + _parent_rectangle.get_height());
 274                 cairo_stroke (cr);
 275         }
 276 }
 277
 278 void
 279 PortMatrixGrid::mouseover_changed (PortMatrixNode const& old)
 280 {
 281         queue_draw_for (old);
 282         queue_draw_for (_body->mouseover());
 283 }
 284
 285 void
 286 PortMatrixGrid::mouseover_event (double x, double y)
 287 {
 288         _body->set_mouseover (position_to_node (x, y));
 289 }
 290
 291 void
 292 PortMatrixGrid::queue_draw_for (PortMatrixNode const &n)
 293 {
 294         if (n.row.bundle) {
 295
 296                 double const y = channel_position (n.row, _body->row_ports().bundles(), row_height());
 297                 _body->queue_draw_area (
 298                         _parent_rectangle.get_x(),
 299                         component_to_parent_y (y),
 300                         _parent_rectangle.get_width(),
 301                         row_height()
 302                         );
 303         }
 304
 305         if (n.column.bundle) {
 306
 307                 double const x = channel_position (n.column, _body->column_ports().bundles(), column_width());
 308
 309                 _body->queue_draw_area (
 310                         component_to_parent_x (x),
 311                         _parent_rectangle.get_y(),
 312                         column_width(),
 313                         _parent_rectangle.get_height()
 314                         );
 315         }
 316 }
 317
 318 double
 319 PortMatrixGrid::component_to_parent_x (double x) const
 320 {
 321         return x - _body->xoffset() + _parent_rectangle.get_x();
 322 }
 323
 324 double
 325 PortMatrixGrid::parent_to_component_x (double x) const
 326 {
 327         return x + _body->xoffset() - _parent_rectangle.get_x();
 328 }
 329
 330 double
 331 PortMatrixGrid::component_to_parent_y (double y) const
 332 {
 333         return y - _body->yoffset() + _parent_rectangle.get_y();
 334 }
 335
 336 double
 337 PortMatrixGrid::parent_to_component_y (double y) const
 338 {
 339         return y + _body->yoffset() - _parent_rectangle.get_y();
 340 }
 341