gtk2_ardour/port_matrix_body.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 "ardour/bundle.h"
  22 #include "ardour/types.h"
  23 #include "port_matrix_body.h"
  24 #include "port_matrix.h"
  25
  26 PortMatrixBody::PortMatrixBody (PortMatrix* p)
  27         : _matrix (p),
  28           _column_labels (p, this),
  29           _row_labels (p, this),
  30           _grid (p, this),
  31           _xoffset (0),
  32           _yoffset (0),
  33           _mouse_over_grid (false)
  34 {
  35         modify_bg (Gtk::STATE_NORMAL, Gdk::Color ("#00000"));
  36         add_events (Gdk::LEAVE_NOTIFY_MASK | Gdk::POINTER_MOTION_MASK);
  37 }
  38
  39
  40 bool
  41 PortMatrixBody::on_expose_event (GdkEventExpose* event)
  42 {
  43         Gdk::Rectangle const exposure (
  44                 event->area.x, event->area.y, event->area.width, event->area.height
  45                 );
  46
  47         bool intersects;
  48         Gdk::Rectangle r = exposure;
  49         r.intersect (_column_labels.parent_rectangle(), intersects);
  50
  51         if (intersects) {
  52                 gdk_draw_drawable (
  53                         get_window()->gobj(),
  54                         get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
  55                         _column_labels.get_pixmap (get_window()->gobj()),
  56                         _column_labels.parent_to_component_x (r.get_x()),
  57                         _column_labels.parent_to_component_y (r.get_y()),
  58                         r.get_x(),
  59                         r.get_y(),
  60                         r.get_width(),
  61                         r.get_height()
  62                         );
  63         }
  64
  65         r = exposure;
  66         r.intersect (_row_labels.parent_rectangle(), intersects);
  67
  68         if (intersects) {
  69                 gdk_draw_drawable (
  70                         get_window()->gobj(),
  71                         get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
  72                         _row_labels.get_pixmap (get_window()->gobj()),
  73                         _row_labels.parent_to_component_x (r.get_x()),
  74                         _row_labels.parent_to_component_y (r.get_y()),
  75                         r.get_x(),
  76                         r.get_y(),
  77                         r.get_width(),
  78                         r.get_height()
  79                         );
  80         }
  81
  82         r = exposure;
  83         r.intersect (_grid.parent_rectangle(), intersects);
  84
  85         if (intersects) {
  86                 gdk_draw_drawable (
  87                         get_window()->gobj(),
  88                         get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
  89                         _grid.get_pixmap (get_window()->gobj()),
  90                         _grid.parent_to_component_x (r.get_x()),
  91                         _grid.parent_to_component_y (r.get_y()),
  92                         r.get_x(),
  93                         r.get_y(),
  94                         r.get_width(),
  95                         r.get_height()
  96                         );
  97         }
  98
  99         cairo_t* cr = gdk_cairo_create (get_window()->gobj());
 100         _grid.draw_extra (cr);
 101         _row_labels.draw_extra (cr);
 102         _column_labels.draw_extra (cr);
 103         cairo_destroy (cr);
 104
 105         return true;
 106 }
 107
 108 void
 109 PortMatrixBody::on_size_request (Gtk::Requisition *req)
 110 {
 111         std::pair<int, int> const col = _column_labels.dimensions ();
 112         std::pair<int, int> const row = _row_labels.dimensions ();
 113         std::pair<int, int> const grid = _grid.dimensions ();
 114
 115         /* don't ask for the maximum size of our contents, otherwise GTK won't
 116            let the containing window shrink below this size */
 117
 118         req->width = std::min (512, std::max (col.first, grid.first + row.first));
 119         req->height = std::min (512, col.second + grid.second);
 120 }
 121
 122 void
 123 PortMatrixBody::on_size_allocate (Gtk::Allocation& alloc)
 124 {
 125         Gtk::EventBox::on_size_allocate (alloc);
 126
 127         _alloc_width = alloc.get_width ();
 128         _alloc_height = alloc.get_height ();
 129
 130         compute_rectangles ();
 131         _matrix->setup_scrollbars ();
 132 }
 133
 134 void
 135 PortMatrixBody::compute_rectangles ()
 136 {
 137         /* full sizes of components */
 138         std::pair<uint32_t, uint32_t> const col = _column_labels.dimensions ();
 139         std::pair<uint32_t, uint32_t> const row = _row_labels.dimensions ();
 140         std::pair<uint32_t, uint32_t> const grid = _grid.dimensions ();
 141
 142         Gdk::Rectangle col_rect;
 143         Gdk::Rectangle row_rect;
 144         Gdk::Rectangle grid_rect;
 145
 146         if (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT) {
 147
 148                 /* build from top left */
 149
 150                 col_rect.set_x (0);
 151                 col_rect.set_y (0);
 152                 grid_rect.set_x (0);
 153
 154                 if (_alloc_width > col.first) {
 155                         col_rect.set_width (col.first);
 156                 } else {
 157                         col_rect.set_width (_alloc_width);
 158                 }
 159
 160                 /* move down to y division */
 161
 162                 uint32_t y = 0;
 163                 if (_alloc_height > col.second) {
 164                         y = col.second;
 165                 } else {
 166                         y = _alloc_height;
 167                 }
 168
 169                 col_rect.set_height (y);
 170                 row_rect.set_y (y);
 171                 row_rect.set_height (_alloc_height - y);
 172                 grid_rect.set_y (y);
 173                 grid_rect.set_height (_alloc_height - y);
 174
 175                 /* move right to x division */
 176
 177                 uint32_t x = 0;
 178                 if (_alloc_width > (grid.first + row.first)) {
 179                         x = grid.first;
 180                 } else if (_alloc_width > row.first) {
 181                         x = _alloc_width - row.first;
 182                 }
 183
 184                 grid_rect.set_width (x);
 185                 row_rect.set_x (x);
 186                 row_rect.set_width (_alloc_width - x);
 187
 188
 189         } else if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 190
 191                 /* build from bottom right */
 192
 193                 /* move left to x division */
 194
 195                 uint32_t x = 0;
 196                 if (_alloc_width > (grid.first + row.first)) {
 197                         x = grid.first;
 198                 } else if (_alloc_width > row.first) {
 199                         x = _alloc_width - row.first;
 200                 }
 201
 202                 grid_rect.set_x (_alloc_width - x);
 203                 grid_rect.set_width (x);
 204                 col_rect.set_width (col.first - grid.first + x);
 205                 col_rect.set_x (_alloc_width - col_rect.get_width());
 206
 207                 row_rect.set_width (std::min (_alloc_width - x, row.first));
 208                 row_rect.set_x (_alloc_width - x - row_rect.get_width());
 209
 210                 /* move up to the y division */
 211
 212                 uint32_t y = 0;
 213                 if (_alloc_height > col.second) {
 214                         y = col.second;
 215                 } else {
 216                         y = _alloc_height;
 217                 }
 218
 219                 col_rect.set_y (_alloc_height - y);
 220                 col_rect.set_height (y);
 221
 222                 grid_rect.set_height (std::min (grid.second, _alloc_height - y));
 223                 grid_rect.set_y (_alloc_height - y - grid_rect.get_height());
 224
 225                 row_rect.set_height (grid_rect.get_height());
 226                 row_rect.set_y (grid_rect.get_y());
 227         }
 228
 229         _row_labels.set_parent_rectangle (row_rect);
 230         _column_labels.set_parent_rectangle (col_rect);
 231         _grid.set_parent_rectangle (grid_rect);
 232 }
 233
 234 void
 235 PortMatrixBody::setup ()
 236 {
 237         /* Discard any old connections to bundles */
 238
 239         for (std::list<sigc::connection>::iterator i = _bundle_connections.begin(); i != _bundle_connections.end(); ++i) {
 240                 i->disconnect ();
 241         }
 242         _bundle_connections.clear ();
 243
 244         /* Connect to bundles so that we find out when their names change */
 245
 246         ARDOUR::BundleList r = _matrix->rows()->bundles ();
 247         for (ARDOUR::BundleList::iterator i = r.begin(); i != r.end(); ++i) {
 248
 249                 _bundle_connections.push_back (
 250                         (*i)->NameChanged.connect (sigc::mem_fun (*this, &PortMatrixBody::rebuild_and_draw_row_labels))
 251                         );
 252
 253         }
 254
 255         ARDOUR::BundleList c = _matrix->columns()->bundles ();
 256         for (ARDOUR::BundleList::iterator i = c.begin(); i != c.end(); ++i) {
 257                 _bundle_connections.push_back (
 258                         (*i)->NameChanged.connect (sigc::mem_fun (*this, &PortMatrixBody::rebuild_and_draw_column_labels))
 259                         );
 260         }
 261
 262         _column_labels.setup ();
 263         _row_labels.setup ();
 264         _grid.setup ();
 265
 266         set_mouseover (PortMatrixNode ());
 267         compute_rectangles ();
 268 }
 269
 270 uint32_t
 271 PortMatrixBody::full_scroll_width ()
 272 {
 273         return _grid.dimensions().first;
 274
 275 }
 276
 277 uint32_t
 278 PortMatrixBody::alloc_scroll_width ()
 279 {
 280         return _grid.parent_rectangle().get_width();
 281 }
 282
 283 uint32_t
 284 PortMatrixBody::full_scroll_height ()
 285 {
 286         return _grid.dimensions().second;
 287 }
 288
 289 uint32_t
 290 PortMatrixBody::alloc_scroll_height ()
 291 {
 292         return _grid.parent_rectangle().get_height();
 293 }
 294
 295 void
 296 PortMatrixBody::set_xoffset (uint32_t xo)
 297 {
 298         _xoffset = xo;
 299         queue_draw ();
 300 }
 301
 302 void
 303 PortMatrixBody::set_yoffset (uint32_t yo)
 304 {
 305         _yoffset = yo;
 306         queue_draw ();
 307 }
 308
 309 bool
 310 PortMatrixBody::on_button_press_event (GdkEventButton* ev)
 311 {
 312         if (Gdk::Region (_grid.parent_rectangle()).point_in (ev->x, ev->y)) {
 313
 314                 _grid.button_press (
 315                         _grid.parent_to_component_x (ev->x),
 316                         _grid.parent_to_component_y (ev->y),
 317                         ev->button
 318                         );
 319
 320         } else if (Gdk::Region (_row_labels.parent_rectangle()).point_in (ev->x, ev->y)) {
 321
 322                 _row_labels.button_press (
 323                         _row_labels.parent_to_component_x (ev->x),
 324                         _row_labels.parent_to_component_y (ev->y),
 325                         ev->button, ev->time
 326                         );
 327
 328         } else if (Gdk::Region (_column_labels.parent_rectangle()).point_in (ev->x, ev->y)) {
 329
 330                 _column_labels.button_press (
 331                         _column_labels.parent_to_component_x (ev->x),
 332                         _column_labels.parent_to_component_y (ev->y),
 333                         ev->button, ev->time
 334                         );
 335         }
 336
 337         return true;
 338 }
 339
 340 bool
 341 PortMatrixBody::on_button_release_event (GdkEventButton* ev)
 342 {
 343         if (Gdk::Region (_row_labels.parent_rectangle()).point_in (ev->x, ev->y) ||
 344             Gdk::Region (_column_labels.parent_rectangle()).point_in (ev->x, ev->y)) {
 345
 346                 _row_labels.clear_channel_highlights ();
 347                 _column_labels.clear_channel_highlights ();
 348
 349         }
 350
 351         return true;
 352 }
 353
 354 void
 355 PortMatrixBody::rebuild_and_draw_grid ()
 356 {
 357         _grid.require_rebuild ();
 358         queue_draw ();
 359 }
 360
 361 void
 362 PortMatrixBody::rebuild_and_draw_column_labels ()
 363 {
 364         _column_labels.require_rebuild ();
 365         queue_draw ();
 366 }
 367
 368 void
 369 PortMatrixBody::rebuild_and_draw_row_labels ()
 370 {
 371         _row_labels.require_rebuild ();
 372         queue_draw ();
 373 }
 374
 375 bool
 376 PortMatrixBody::on_leave_notify_event (GdkEventCrossing* ev)
 377 {
 378         if (ev->type == GDK_LEAVE_NOTIFY) {
 379                 set_mouseover (PortMatrixNode ());
 380         }
 381
 382         return true;
 383 }
 384
 385 bool
 386 PortMatrixBody::on_motion_notify_event (GdkEventMotion* ev)
 387 {
 388         if (Gdk::Region (_grid.parent_rectangle()).point_in (ev->x, ev->y)) {
 389                 _grid.mouseover_event (
 390                         _grid.parent_to_component_x (ev->x),
 391                         _grid.parent_to_component_y (ev->y)
 392                         );
 393                 _mouse_over_grid = true;
 394         } else {
 395                 if (_mouse_over_grid) {
 396                         set_mouseover (PortMatrixNode ());
 397                         _mouse_over_grid = false;
 398                 }
 399         }
 400
 401         return true;
 402 }
 403
 404 void
 405 PortMatrixBody::set_mouseover (PortMatrixNode const & n)
 406 {
 407         if (n == _mouseover) {
 408                 return;
 409         }
 410
 411         PortMatrixNode old = _mouseover;
 412         _mouseover = n;
 413
 414         _grid.mouseover_changed (old);
 415         _row_labels.mouseover_changed (old);
 416         _column_labels.mouseover_changed (old);
 417 }
 418
 419
 420
 421 void
 422 PortMatrixBody::highlight_associated_channels (int dim, uint32_t N)
 423 {
 424         ARDOUR::BundleChannel bc[2];
 425
 426         ARDOUR::BundleList const a = _matrix->ports(dim)->bundles ();
 427         for (ARDOUR::BundleList::const_iterator i = a.begin(); i != a.end(); ++i) {
 428                 if (N < (*i)->nchannels ()) {
 429                         bc[dim] = ARDOUR::BundleChannel (*i, N);
 430                         break;
 431                 } else {
 432                         N -= (*i)->nchannels ();
 433                 }
 434         }
 435
 436         if (!bc[dim].bundle) {
 437                 return;
 438         }
 439
 440         if (dim == _matrix->column_index()) {
 441                 _column_labels.add_channel_highlight (bc[dim]);
 442         } else {
 443                 _row_labels.add_channel_highlight (bc[dim]);
 444         }
 445
 446         ARDOUR::BundleList const b = _matrix->ports(1 - dim)->bundles ();
 447
 448         for (ARDOUR::BundleList::const_iterator i = b.begin(); i != b.end(); ++i) {
 449                 for (uint32_t j = 0; j < (*i)->nchannels(); ++j) {
 450                         bc[1 - dim] = ARDOUR::BundleChannel (*i, j);
 451                         if (_matrix->get_state (bc) == PortMatrix::ASSOCIATED) {
 452                                 if (dim == _matrix->column_index()) {
 453                                         _row_labels.add_channel_highlight (bc[1 - dim]);
 454                                 } else {
 455                                         _column_labels.add_channel_highlight (bc[1 - dim]);
 456                                 }
 457                         }
 458                 }
 459         }
 460 }