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 #include "port_matrix_body.h"
  27
  28 PortMatrixGrid::PortMatrixGrid (PortMatrix* m, PortMatrixBody* b)
  29         : PortMatrixComponent (m, b)
  30 {
  31
  32 }
  33
  34 void
  35 PortMatrixGrid::compute_dimensions ()
  36 {
  37         _width = 0;
  38         ARDOUR::BundleList const c = _matrix->columns()->bundles();
  39         if (_matrix->show_only_bundles()) {
  40                 _width = c.size() * column_width();
  41         } else {
  42                 for (ARDOUR::BundleList::const_iterator i = c.begin(); i != c.end(); ++i) {
  43                         _width += (*i)->nchannels() * column_width();
  44                 }
  45         }
  46
  47         _height = 0;
  48         ARDOUR::BundleList const r = _matrix->rows()->bundles();
  49         if (_matrix->show_only_bundles()) {
  50                 _height = r.size() * column_width();
  51         } else {
  52                 for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
  53                         _height += (*i)->nchannels() * row_height();
  54                 }
  55         }
  56 }
  57
  58
  59 void
  60 PortMatrixGrid::render (cairo_t* cr)
  61 {
  62         /* BACKGROUND */
  63
  64         set_source_rgb (cr, background_colour());
  65         cairo_rectangle (cr, 0, 0, _width, _height);
  66         cairo_fill (cr);
  67
  68         /* VERTICAL GRID LINES */
  69
  70         set_source_rgb (cr, grid_colour());
  71         uint32_t x = 0;
  72         ARDOUR::BundleList const c = _matrix->columns()->bundles();
  73         for (ARDOUR::BundleList::size_type i = 0; i < c.size(); ++i) {
  74
  75                 if (!_matrix->show_only_bundles()) {
  76                         cairo_set_line_width (cr, thin_grid_line_width());
  77                         for (uint32_t j = 1; j < c[i]->nchannels(); ++j) {
  78                                 x += column_width();
  79                                 cairo_move_to (cr, x, 0);
  80                                 cairo_line_to (cr, x, _height);
  81                                 cairo_stroke (cr);
  82                         }
  83                 }
  84
  85                 if (i < (c.size() - 1)) {
  86                         x += column_width();
  87                         cairo_set_line_width (cr, thick_grid_line_width());
  88                         cairo_move_to (cr, x, 0);
  89                         cairo_line_to (cr, x, _height);
  90                         cairo_stroke (cr);
  91                 }
  92         }
  93
  94         uint32_t grid_width = x + column_width();
  95
  96         /* HORIZONTAL GRID LINES */
  97
  98         uint32_t y = 0;
  99         ARDOUR::BundleList const r = _matrix->rows()->bundles();
 100         for (ARDOUR::BundleList::size_type i = 0; i < r.size(); ++i) {
 101
 102                 if (!_matrix->show_only_bundles()) {
 103                         cairo_set_line_width (cr, thin_grid_line_width());
 104                         for (uint32_t j = 1; j < r[i]->nchannels(); ++j) {
 105                                 y += row_height();
 106                                 cairo_move_to (cr, 0, y);
 107                                 cairo_line_to (cr, grid_width, y);
 108                                 cairo_stroke (cr);
 109                         }
 110                 }
 111
 112                 if (i < (r.size() - 1)) {
 113                         y += row_height();
 114                         cairo_set_line_width (cr, thick_grid_line_width());
 115                         cairo_move_to (cr, 0, y);
 116                         cairo_line_to (cr, grid_width, y);
 117                         cairo_stroke (cr);
 118                 }
 119         }
 120
 121         /* ASSOCIATION INDICATORS */
 122
 123         uint32_t bx = 0;
 124         uint32_t by = 0;
 125
 126         if (_matrix->show_only_bundles()) {
 127
 128                 for (ARDOUR::BundleList::const_iterator i = c.begin(); i < c.end(); ++i) {
 129                         by = 0;
 130
 131                         for (ARDOUR::BundleList::const_iterator j = r.begin(); j < r.end(); ++j) {
 132
 133                                 PortMatrixNode::State s = bundle_to_bundle_state (*i, *j);
 134                                 switch (s) {
 135                                 case PortMatrixNode::UNKNOWN:
 136                                         draw_unknown_indicator (cr, bx, by);
 137                                         break;
 138                                 case PortMatrixNode::ASSOCIATED:
 139                                         draw_association_indicator (cr, bx, by);
 140                                         break;
 141                                 case PortMatrixNode::PARTIAL:
 142                                         draw_association_indicator (cr, bx, by, 0.5);
 143                                         break;
 144                                 }
 145
 146                                 by += row_height();
 147                         }
 148
 149                         bx += column_width();
 150                 }
 151
 152         } else {
 153
 154                 for (ARDOUR::BundleList::const_iterator i = c.begin(); i < c.end(); ++i) {
 155                         by = 0;
 156
 157                         for (ARDOUR::BundleList::const_iterator j = r.begin(); j < r.end(); ++j) {
 158
 159                                 x = bx;
 160                                 for (uint32_t k = 0; k < (*i)->nchannels (); ++k) {
 161
 162                                         y = by;
 163                                         for (uint32_t l = 0; l < (*j)->nchannels (); ++l) {
 164
 165                                                 ARDOUR::BundleChannel c[2];
 166                                                 c[_matrix->column_index()] = ARDOUR::BundleChannel (*i, k);
 167                                                 c[_matrix->row_index()] = ARDOUR::BundleChannel (*j, l);
 168
 169                                                 PortMatrixNode::State const s = _matrix->get_state (c);
 170
 171                                                 switch (s) {
 172                                                 case PortMatrixNode::ASSOCIATED:
 173                                                         draw_association_indicator (cr, x, y);
 174                                                         break;
 175
 176                                                 case PortMatrixNode::UNKNOWN:
 177                                                         draw_unknown_indicator (cr, x, y);
 178                                                         break;
 179
 180                                                 case PortMatrixNode::NOT_ASSOCIATED:
 181                                                         break;
 182                                                 }
 183
 184                                                 y += row_height();
 185                                         }
 186
 187                                         x += column_width();
 188                                 }
 189
 190                                 by += (*j)->nchannels () * row_height();
 191                         }
 192
 193                         bx += (*i)->nchannels () * column_width();
 194                 }
 195         }
 196 }
 197
 198 void
 199 PortMatrixGrid::draw_association_indicator (cairo_t* cr, uint32_t x, uint32_t y, double p)
 200 {
 201         set_source_rgba (cr, association_colour(), 0.5);
 202         cairo_arc (
 203                 cr,
 204                 x + column_width() / 2,
 205                 y + column_width() / 2,
 206                 (column_width() - (2 * connection_indicator_pad())) / 2,
 207                 0,
 208                 p * 2 * M_PI
 209                 );
 210
 211         cairo_fill (cr);
 212 }
 213
 214 void
 215 PortMatrixGrid::draw_unknown_indicator (cairo_t* cr, uint32_t x, uint32_t y)
 216 {
 217         set_source_rgba (cr, unknown_colour(), 0.5);
 218         cairo_rectangle (
 219                 cr,
 220                 x + thick_grid_line_width(),
 221                 y + thick_grid_line_width(),
 222                 column_width() - 2 * thick_grid_line_width(),
 223                 row_height() - 2 * thick_grid_line_width()
 224                 );
 225         cairo_fill (cr);
 226 }
 227
 228 PortMatrixNode
 229 PortMatrixGrid::position_to_node (double x, double y) const
 230 {
 231         return PortMatrixNode (
 232                 position_to_channel (y, _matrix->rows()->bundles(), row_height()),
 233                 position_to_channel (x, _matrix->columns()->bundles(), column_width())
 234                 );
 235 }
 236
 237
 238 ARDOUR::BundleChannel
 239 PortMatrixGrid::position_to_channel (double p, ARDOUR::BundleList const& bundles, double inc) const
 240 {
 241         uint32_t pos = p / inc;
 242
 243         if (_matrix->show_only_bundles()) {
 244
 245                 for (ARDOUR::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
 246                         if (pos == 0) {
 247                                 return ARDOUR::BundleChannel (*i, 0);
 248                         } else {
 249                                 pos--;
 250                         }
 251                 }
 252
 253         } else {
 254
 255                 for (ARDOUR::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
 256                         if (pos < (*i)->nchannels()) {
 257                                 return ARDOUR::BundleChannel (*i, pos);
 258                         } else {
 259                                 pos -= (*i)->nchannels();
 260                         }
 261                 }
 262
 263         }
 264
 265         return ARDOUR::BundleChannel (boost::shared_ptr<ARDOUR::Bundle> (), 0);
 266 }
 267
 268
 269 double
 270 PortMatrixGrid::channel_position (
 271         ARDOUR::BundleChannel bc,
 272         ARDOUR::BundleList const& bundles,
 273         double inc) const
 274 {
 275         double p = 0;
 276
 277         ARDOUR::BundleList::const_iterator i = bundles.begin ();
 278         while (i != bundles.end() && *i != bc.bundle) {
 279
 280                 if (_matrix->show_only_bundles()) {
 281                         p += inc;
 282                 } else {
 283                         p += inc * (*i)->nchannels();
 284                 }
 285
 286                 ++i;
 287         }
 288
 289         if (i == bundles.end()) {
 290                 return 0;
 291         }
 292
 293         p += inc * bc.channel;
 294
 295         return p;
 296 }
 297
 298 void
 299 PortMatrixGrid::button_press (double x, double y, int b)
 300 {
 301         PortMatrixNode const node = position_to_node (x, y);
 302
 303         if (_matrix->show_only_bundles()) {
 304
 305                 PortMatrixNode::State const s = bundle_to_bundle_state (node.column.bundle, node.row.bundle);
 306
 307                 for (uint32_t i = 0; i < node.column.bundle->nchannels(); ++i) {
 308                         for (uint32_t j = 0; j < node.row.bundle->nchannels(); ++j) {
 309
 310                                 ARDOUR::BundleChannel c[2];
 311                                 c[_matrix->column_index()] = ARDOUR::BundleChannel (node.column.bundle, i);
 312                                 c[_matrix->row_index()] = ARDOUR::BundleChannel (node.row.bundle, j);
 313                                 if (s == PortMatrixNode::NOT_ASSOCIATED || s == PortMatrixNode::PARTIAL) {
 314                                         _matrix->set_state (c, i == j);
 315                                 } else {
 316                                         _matrix->set_state (c, false);
 317                                 }
 318                         }
 319                 }
 320
 321         } else {
 322
 323                 if (node.row.bundle && node.column.bundle) {
 324
 325                         ARDOUR::BundleChannel c[2];
 326                         c[_matrix->row_index()] = node.row;
 327                         c[_matrix->column_index()] = node.column;
 328
 329                         PortMatrixNode::State const s = _matrix->get_state (c);
 330
 331                         if (s == PortMatrixNode::ASSOCIATED || s == PortMatrixNode::NOT_ASSOCIATED) {
 332
 333                                 bool const n = !(s == PortMatrixNode::ASSOCIATED);
 334
 335                                 ARDOUR::BundleChannel c[2];
 336                                 c[_matrix->row_index()] = node.row;
 337                                 c[_matrix->column_index()] = node.column;
 338
 339                                 _matrix->set_state (c, n);
 340                         }
 341
 342                 }
 343         }
 344
 345         require_render ();
 346         _body->queue_draw ();
 347 }
 348
 349 void
 350 PortMatrixGrid::draw_extra (cairo_t* cr)
 351 {
 352         set_source_rgba (cr, mouseover_line_colour(), 0.3);
 353         cairo_set_line_width (cr, mouseover_line_width());
 354
 355         double const x = component_to_parent_x (
 356                 channel_position (_body->mouseover().column, _matrix->columns()->bundles(), column_width()) + column_width() / 2
 357                 );
 358
 359         double const y = component_to_parent_y (
 360                 channel_position (_body->mouseover().row, _matrix->rows()->bundles(), row_height()) + row_height() / 2
 361                 );
 362
 363         if (_body->mouseover().row.bundle) {
 364
 365                 cairo_move_to (cr, x, y);
 366                 if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 367                         cairo_line_to (cr, component_to_parent_x (0), y);
 368                 } else if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
 369                         cairo_line_to (cr, _parent_rectangle.get_x() + _parent_rectangle.get_width(), y);
 370                 }
 371                 cairo_stroke (cr);
 372         }
 373
 374         if (_body->mouseover().column.bundle) {
 375
 376                 cairo_move_to (cr, x, y);
 377                 if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 378                         cairo_line_to (cr, x, _parent_rectangle.get_y() + _parent_rectangle.get_height());
 379                 } else if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
 380                         cairo_line_to (cr, x, component_to_parent_y (0));
 381                 }
 382                 cairo_stroke (cr);
 383         }
 384 }
 385
 386 void
 387 PortMatrixGrid::mouseover_changed (PortMatrixNode const& old)
 388 {
 389         queue_draw_for (old);
 390         queue_draw_for (_body->mouseover());
 391 }
 392
 393 void
 394 PortMatrixGrid::mouseover_event (double x, double y)
 395 {
 396         _body->set_mouseover (position_to_node (x, y));
 397 }
 398
 399 void
 400 PortMatrixGrid::queue_draw_for (PortMatrixNode const &n)
 401 {
 402         if (n.row.bundle) {
 403
 404                 double const y = channel_position (n.row, _matrix->rows()->bundles(), row_height());
 405                 _body->queue_draw_area (
 406                         _parent_rectangle.get_x(),
 407                         component_to_parent_y (y),
 408                         _parent_rectangle.get_width(),
 409                         row_height()
 410                         );
 411         }
 412
 413         if (n.column.bundle) {
 414
 415                 double const x = channel_position (n.column, _matrix->columns()->bundles(), column_width());
 416
 417                 _body->queue_draw_area (
 418                         component_to_parent_x (x),
 419                         _parent_rectangle.get_y(),
 420                         column_width(),
 421                         _parent_rectangle.get_height()
 422                         );
 423         }
 424 }
 425
 426 double
 427 PortMatrixGrid::component_to_parent_x (double x) const
 428 {
 429         return x - _body->xoffset() + _parent_rectangle.get_x();
 430 }
 431
 432 double
 433 PortMatrixGrid::parent_to_component_x (double x) const
 434 {
 435         return x + _body->xoffset() - _parent_rectangle.get_x();
 436 }
 437
 438 double
 439 PortMatrixGrid::component_to_parent_y (double y) const
 440 {
 441         return y - _body->yoffset() + _parent_rectangle.get_y();
 442 }
 443
 444 double
 445 PortMatrixGrid::parent_to_component_y (double y) const
 446 {
 447         return y + _body->yoffset() - _parent_rectangle.get_y();
 448 }
 449
 450 PortMatrixNode::State
 451 PortMatrixGrid::bundle_to_bundle_state (boost::shared_ptr<ARDOUR::Bundle> a, boost::shared_ptr<ARDOUR::Bundle> b) const
 452 {
 453         bool have_unknown = false;
 454         bool have_off_diagonal_association = false;
 455         bool have_diagonal_association = false;
 456         bool have_diagonal_not_association = false;
 457
 458         for (uint32_t i = 0; i < a->nchannels (); ++i) {
 459
 460                 for (uint32_t j = 0; j < b->nchannels (); ++j) {
 461
 462                         ARDOUR::BundleChannel c[2];
 463                         c[_matrix->column_index()] = ARDOUR::BundleChannel (a, i);
 464                         c[_matrix->row_index()] = ARDOUR::BundleChannel (b, j);
 465
 466                         PortMatrixNode::State const s = _matrix->get_state (c);
 467
 468                         switch (s) {
 469                         case PortMatrixNode::ASSOCIATED:
 470                                 if (i == j) {
 471                                         have_diagonal_association = true;
 472                                 } else {
 473                                         have_off_diagonal_association = true;
 474                                 }
 475                                 break;
 476
 477                         case PortMatrixNode::UNKNOWN:
 478                                 have_unknown = true;
 479                                 break;
 480
 481                         case PortMatrixNode::NOT_ASSOCIATED:
 482                                 if (i == j) {
 483                                         have_diagonal_not_association = true;
 484                                 }
 485                                 break;
 486                         }
 487                 }
 488         }
 489
 490         if (have_unknown) {
 491                 return PortMatrixNode::UNKNOWN;
 492         } else if (have_diagonal_association && !have_off_diagonal_association && !have_diagonal_not_association) {
 493                 return PortMatrixNode::ASSOCIATED;
 494         } else if (!have_diagonal_association && !have_off_diagonal_association) {
 495                 return PortMatrixNode::NOT_ASSOCIATED;
 496         }
 497
 498         return PortMatrixNode::PARTIAL;
 499 }
 500
 501