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