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         PortGroup::BundleList const c = _matrix->columns()->bundles();
  39         if (_matrix->show_only_bundles()) {
  40                 _width = c.size() * column_width();
  41         } else {
  42                 for (PortGroup::BundleList::const_iterator i = c.begin(); i != c.end(); ++i) {
  43                         _width += i->bundle->nchannels() * column_width();
  44                 }
  45         }
  46
  47         _height = 0;
  48         PortGroup::BundleList const r = _matrix->rows()->bundles();
  49         if (_matrix->show_only_bundles()) {
  50                 _height = r.size() * column_width();
  51         } else {
  52                 for (PortGroup::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
  53                         _height += i->bundle->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         PortGroup::BundleList const c = _matrix->columns()->bundles();
  73         uint32_t N = 0;
  74         for (PortGroup::BundleList::const_iterator i = c.begin(); i != c.end(); ++i) {
  75
  76                 if (!_matrix->show_only_bundles()) {
  77                         cairo_set_line_width (cr, thin_grid_line_width());
  78                         for (uint32_t j = 1; j < i->bundle->nchannels(); ++j) {
  79                                 x += column_width();
  80                                 cairo_move_to (cr, x, 0);
  81                                 cairo_line_to (cr, x, _height);
  82                                 cairo_stroke (cr);
  83                         }
  84                 }
  85
  86                 if (N < (c.size() - 1)) {
  87                         x += column_width();
  88                         cairo_set_line_width (cr, thick_grid_line_width());
  89                         cairo_move_to (cr, x, 0);
  90                         cairo_line_to (cr, x, _height);
  91                         cairo_stroke (cr);
  92                 }
  93
  94                 ++N;
  95         }
  96
  97         uint32_t grid_width = x + column_width();
  98
  99         /* HORIZONTAL GRID LINES */
 100
 101         uint32_t y = 0;
 102         N = 0;
 103         PortGroup::BundleList const r = _matrix->rows()->bundles();
 104         for (PortGroup::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
 105
 106                 if (!_matrix->show_only_bundles()) {
 107                         cairo_set_line_width (cr, thin_grid_line_width());
 108                         for (uint32_t j = 1; j < i->bundle->nchannels(); ++j) {
 109                                 y += row_height();
 110                                 cairo_move_to (cr, 0, y);
 111                                 cairo_line_to (cr, grid_width, y);
 112                                 cairo_stroke (cr);
 113                         }
 114                 }
 115
 116                 if (N < (r.size() - 1)) {
 117                         y += row_height();
 118                         cairo_set_line_width (cr, thick_grid_line_width());
 119                         cairo_move_to (cr, 0, y);
 120                         cairo_line_to (cr, grid_width, y);
 121                         cairo_stroke (cr);
 122                 }
 123
 124                 ++N;
 125         }
 126
 127         /* ASSOCIATION INDICATORS */
 128
 129         uint32_t bx = 0;
 130         uint32_t by = 0;
 131
 132         if (_matrix->show_only_bundles()) {
 133
 134                 for (PortGroup::BundleList::const_iterator i = c.begin(); i != c.end(); ++i) {
 135                         by = 0;
 136
 137                         for (PortGroup::BundleList::const_iterator j = r.begin(); j != r.end(); ++j) {
 138
 139                                 PortMatrixNode::State s = bundle_to_bundle_state (i->bundle, j->bundle);
 140                                 switch (s) {
 141                                 case PortMatrixNode::UNKNOWN:
 142                                         draw_unknown_indicator (cr, bx, by);
 143                                         break;
 144                                 case PortMatrixNode::ASSOCIATED:
 145                                         draw_association_indicator (cr, bx, by);
 146                                         break;
 147                                 case PortMatrixNode::PARTIAL:
 148                                         draw_association_indicator (cr, bx, by, 0.5);
 149                                         break;
 150                                 default:
 151                                         break;
 152                                 }
 153
 154                                 by += row_height();
 155                         }
 156
 157                         bx += column_width();
 158                 }
 159
 160         } else {
 161
 162                 for (PortGroup::BundleList::const_iterator i = c.begin(); i != c.end(); ++i) {
 163                         by = 0;
 164
 165                         for (PortGroup::BundleList::const_iterator j = r.begin(); j != r.end(); ++j) {
 166
 167                                 x = bx;
 168                                 for (uint32_t k = 0; k < i->bundle->nchannels (); ++k) {
 169
 170                                         y = by;
 171                                         for (uint32_t l = 0; l < j->bundle->nchannels (); ++l) {
 172
 173                                                 ARDOUR::BundleChannel c[2];
 174                                                 c[_matrix->column_index()] = ARDOUR::BundleChannel (i->bundle, k);
 175                                                 c[_matrix->row_index()] = ARDOUR::BundleChannel (j->bundle, l);
 176
 177                                                 PortMatrixNode::State const s = _matrix->get_state (c);
 178
 179                                                 switch (s) {
 180                                                 case PortMatrixNode::ASSOCIATED:
 181                                                         draw_association_indicator (cr, x, y);
 182                                                         break;
 183
 184                                                 case PortMatrixNode::UNKNOWN:
 185                                                         draw_unknown_indicator (cr, x, y);
 186                                                         break;
 187
 188                                                 case PortMatrixNode::NOT_ASSOCIATED:
 189                                                         break;
 190
 191                                                 default:
 192                                                         break;
 193                                                 }
 194
 195                                                 y += row_height();
 196                                         }
 197
 198                                         x += column_width();
 199                                 }
 200
 201                                 by += j->bundle->nchannels () * row_height();
 202                         }
 203
 204                         bx += i->bundle->nchannels () * column_width();
 205                 }
 206         }
 207 }
 208
 209 void
 210 PortMatrixGrid::draw_association_indicator (cairo_t* cr, uint32_t x, uint32_t y, double p)
 211 {
 212         set_source_rgba (cr, association_colour(), 0.5);
 213         cairo_arc (
 214                 cr,
 215                 x + column_width() / 2,
 216                 y + column_width() / 2,
 217                 (column_width() - (2 * connection_indicator_pad())) / 2,
 218                 0,
 219                 p * 2 * M_PI
 220                 );
 221
 222         cairo_fill (cr);
 223 }
 224
 225 void
 226 PortMatrixGrid::draw_unknown_indicator (cairo_t* cr, uint32_t x, uint32_t y)
 227 {
 228         set_source_rgba (cr, unknown_colour(), 0.5);
 229         cairo_rectangle (
 230                 cr,
 231                 x + thick_grid_line_width(),
 232                 y + thick_grid_line_width(),
 233                 column_width() - 2 * thick_grid_line_width(),
 234                 row_height() - 2 * thick_grid_line_width()
 235                 );
 236         cairo_fill (cr);
 237 }
 238
 239 PortMatrixNode
 240 PortMatrixGrid::position_to_node (double x, double y) const
 241 {
 242         return PortMatrixNode (
 243                 position_to_channel (y, _matrix->rows()->bundles(), row_height()),
 244                 position_to_channel (x, _matrix->columns()->bundles(), column_width())
 245                 );
 246 }
 247
 248
 249 ARDOUR::BundleChannel
 250 PortMatrixGrid::position_to_channel (double p, PortGroup::BundleList const & bundles, double inc) const
 251 {
 252         uint32_t pos = p / inc;
 253
 254         if (_matrix->show_only_bundles()) {
 255
 256                 for (PortGroup::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
 257                         if (pos == 0) {
 258                                 return ARDOUR::BundleChannel (i->bundle, 0);
 259                         } else {
 260                                 pos--;
 261                         }
 262                 }
 263
 264         } else {
 265
 266                 for (PortGroup::BundleList::const_iterator i = bundles.begin(); i != bundles.end(); ++i) {
 267                         if (pos < i->bundle->nchannels()) {
 268                                 return ARDOUR::BundleChannel (i->bundle, pos);
 269                         } else {
 270                                 pos -= i->bundle->nchannels();
 271                         }
 272                 }
 273
 274         }
 275
 276         return ARDOUR::BundleChannel (boost::shared_ptr<ARDOUR::Bundle> (), 0);
 277 }
 278
 279
 280 double
 281 PortMatrixGrid::channel_position (
 282         ARDOUR::BundleChannel bc,
 283         PortGroup::BundleList const& bundles,
 284         double inc) const
 285 {
 286         double p = 0;
 287
 288         PortGroup::BundleList::const_iterator i = bundles.begin ();
 289         while (i != bundles.end() && i->bundle != bc.bundle) {
 290
 291                 if (_matrix->show_only_bundles()) {
 292                         p += inc;
 293                 } else {
 294                         p += inc * i->bundle->nchannels();
 295                 }
 296
 297                 ++i;
 298         }
 299
 300         if (i == bundles.end()) {
 301                 return 0;
 302         }
 303
 304         p += inc * bc.channel;
 305
 306         return p;
 307 }
 308
 309 void
 310 PortMatrixGrid::button_press (double x, double y, int b)
 311 {
 312         PortMatrixNode const node = position_to_node (x, y);
 313
 314         if (_matrix->show_only_bundles()) {
 315
 316                 PortMatrixNode::State const s = bundle_to_bundle_state (node.column.bundle, node.row.bundle);
 317
 318                 for (uint32_t i = 0; i < node.column.bundle->nchannels(); ++i) {
 319                         for (uint32_t j = 0; j < node.row.bundle->nchannels(); ++j) {
 320
 321                                 ARDOUR::BundleChannel c[2];
 322                                 c[_matrix->column_index()] = ARDOUR::BundleChannel (node.column.bundle, i);
 323                                 c[_matrix->row_index()] = ARDOUR::BundleChannel (node.row.bundle, j);
 324                                 if (s == PortMatrixNode::NOT_ASSOCIATED || s == PortMatrixNode::PARTIAL) {
 325                                         _matrix->set_state (c, i == j);
 326                                 } else {
 327                                         _matrix->set_state (c, false);
 328                                 }
 329                         }
 330                 }
 331
 332         } else {
 333
 334                 if (node.row.bundle && node.column.bundle) {
 335
 336                         ARDOUR::BundleChannel c[2];
 337                         c[_matrix->row_index()] = node.row;
 338                         c[_matrix->column_index()] = node.column;
 339
 340                         PortMatrixNode::State const s = _matrix->get_state (c);
 341
 342                         if (s == PortMatrixNode::ASSOCIATED || s == PortMatrixNode::NOT_ASSOCIATED) {
 343
 344                                 bool const n = !(s == PortMatrixNode::ASSOCIATED);
 345
 346                                 ARDOUR::BundleChannel c[2];
 347                                 c[_matrix->row_index()] = node.row;
 348                                 c[_matrix->column_index()] = node.column;
 349
 350                                 _matrix->set_state (c, n);
 351                         }
 352
 353                 }
 354         }
 355
 356         require_render ();
 357         _body->queue_draw ();
 358 }
 359
 360 void
 361 PortMatrixGrid::draw_extra (cairo_t* cr)
 362 {
 363         set_source_rgba (cr, mouseover_line_colour(), 0.3);
 364         cairo_set_line_width (cr, mouseover_line_width());
 365
 366         double const x = component_to_parent_x (
 367                 channel_position (_body->mouseover().column, _matrix->columns()->bundles(), column_width()) + column_width() / 2
 368                 );
 369
 370         double const y = component_to_parent_y (
 371                 channel_position (_body->mouseover().row, _matrix->rows()->bundles(), row_height()) + row_height() / 2
 372                 );
 373
 374         if (_body->mouseover().row.bundle) {
 375
 376                 cairo_move_to (cr, x, y);
 377                 if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 378                         cairo_line_to (cr, component_to_parent_x (0), y);
 379                 } else if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
 380                         cairo_line_to (cr, _parent_rectangle.get_x() + _parent_rectangle.get_width(), y);
 381                 }
 382                 cairo_stroke (cr);
 383         }
 384
 385         if (_body->mouseover().column.bundle) {
 386
 387                 cairo_move_to (cr, x, y);
 388                 if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 389                         cairo_line_to (cr, x, _parent_rectangle.get_y() + _parent_rectangle.get_height());
 390                 } else if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
 391                         cairo_line_to (cr, x, component_to_parent_y (0));
 392                 }
 393                 cairo_stroke (cr);
 394         }
 395 }
 396
 397 void
 398 PortMatrixGrid::mouseover_changed (PortMatrixNode const& old)
 399 {
 400         queue_draw_for (old);
 401         queue_draw_for (_body->mouseover());
 402 }
 403
 404 void
 405 PortMatrixGrid::mouseover_event (double x, double y)
 406 {
 407         _body->set_mouseover (position_to_node (x, y));
 408 }
 409
 410 void
 411 PortMatrixGrid::queue_draw_for (PortMatrixNode const &n)
 412 {
 413         if (n.row.bundle) {
 414
 415                 double const y = channel_position (n.row, _matrix->rows()->bundles(), row_height());
 416                 _body->queue_draw_area (
 417                         _parent_rectangle.get_x(),
 418                         component_to_parent_y (y),
 419                         _parent_rectangle.get_width(),
 420                         row_height()
 421                         );
 422         }
 423
 424         if (n.column.bundle) {
 425
 426                 double const x = channel_position (n.column, _matrix->columns()->bundles(), column_width());
 427
 428                 _body->queue_draw_area (
 429                         component_to_parent_x (x),
 430                         _parent_rectangle.get_y(),
 431                         column_width(),
 432                         _parent_rectangle.get_height()
 433                         );
 434         }
 435 }
 436
 437 double
 438 PortMatrixGrid::component_to_parent_x (double x) const
 439 {
 440         return x - _body->xoffset() + _parent_rectangle.get_x();
 441 }
 442
 443 double
 444 PortMatrixGrid::parent_to_component_x (double x) const
 445 {
 446         return x + _body->xoffset() - _parent_rectangle.get_x();
 447 }
 448
 449 double
 450 PortMatrixGrid::component_to_parent_y (double y) const
 451 {
 452         return y - _body->yoffset() + _parent_rectangle.get_y();
 453 }
 454
 455 double
 456 PortMatrixGrid::parent_to_component_y (double y) const
 457 {
 458         return y + _body->yoffset() - _parent_rectangle.get_y();
 459 }
 460
 461 PortMatrixNode::State
 462 PortMatrixGrid::bundle_to_bundle_state (boost::shared_ptr<ARDOUR::Bundle> a, boost::shared_ptr<ARDOUR::Bundle> b) const
 463 {
 464         bool have_unknown = false;
 465         bool have_off_diagonal_association = false;
 466         bool have_diagonal_association = false;
 467         bool have_diagonal_not_association = false;
 468
 469         for (uint32_t i = 0; i < a->nchannels (); ++i) {
 470
 471                 for (uint32_t j = 0; j < b->nchannels (); ++j) {
 472
 473                         ARDOUR::BundleChannel c[2];
 474                         c[_matrix->column_index()] = ARDOUR::BundleChannel (a, i);
 475                         c[_matrix->row_index()] = ARDOUR::BundleChannel (b, j);
 476
 477                         PortMatrixNode::State const s = _matrix->get_state (c);
 478
 479                         switch (s) {
 480                         case PortMatrixNode::ASSOCIATED:
 481                                 if (i == j) {
 482                                         have_diagonal_association = true;
 483                                 } else {
 484                                         have_off_diagonal_association = true;
 485                                 }
 486                                 break;
 487
 488                         case PortMatrixNode::UNKNOWN:
 489                                 have_unknown = true;
 490                                 break;
 491
 492                         case PortMatrixNode::NOT_ASSOCIATED:
 493                                 if (i == j) {
 494                                         have_diagonal_not_association = true;
 495                                 }
 496                                 break;
 497
 498                         default:
 499                                 break;
 500                         }
 501                 }
 502         }
 503
 504         if (have_unknown) {
 505                 return PortMatrixNode::UNKNOWN;
 506         } else if (have_diagonal_association && !have_off_diagonal_association && !have_diagonal_not_association) {
 507                 return PortMatrixNode::ASSOCIATED;
 508         } else if (!have_diagonal_association && !have_off_diagonal_association) {
 509                 return PortMatrixNode::NOT_ASSOCIATED;
 510         }
 511
 512         return PortMatrixNode::PARTIAL;
 513 }
 514
 515