gtk2_ardour/port_matrix_row_labels.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 <boost/weak_ptr.hpp>
  22 #include <cairo/cairo.h>
  23 #include "ardour/bundle.h"
  24 #include "port_matrix_row_labels.h"
  25 #include "port_matrix.h"
  26 #include "port_matrix_body.h"
  27 #include "i18n.h"
  28 #include "utils.h"
  29
  30 using namespace std;
  31
  32 PortMatrixRowLabels::PortMatrixRowLabels (PortMatrix* m, PortMatrixBody* b)
  33         : PortMatrixLabels (m, b)
  34 {
  35
  36 }
  37
  38 void
  39 PortMatrixRowLabels::compute_dimensions ()
  40 {
  41         GdkPixmap* pm = gdk_pixmap_new (NULL, 1, 1, 24);
  42         gdk_drawable_set_colormap (pm, gdk_colormap_get_system());
  43         cairo_t* cr = gdk_cairo_create (pm);
  44
  45         _longest_port_name = 0;
  46         _longest_bundle_name = 0;
  47         _height = 0;
  48
  49         PortGroup::BundleList const r = _matrix->rows()->bundles();
  50         for (PortGroup::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
  51                 for (uint32_t j = 0; j < i->bundle->nchannels(); ++j) {
  52                         cairo_text_extents_t ext;
  53                         cairo_text_extents (cr, i->bundle->channel_name(j).c_str(), &ext);
  54                         if (ext.width > _longest_port_name) {
  55                                 _longest_port_name = ext.width;
  56                         }
  57                 }
  58
  59                 cairo_text_extents_t ext;
  60                 cairo_text_extents (cr, i->bundle->name().c_str(), &ext);
  61                 if (ext.width > _longest_bundle_name) {
  62                         _longest_bundle_name = ext.width;
  63                 }
  64
  65                 if (_matrix->show_only_bundles()) {
  66                         _height += row_height ();
  67                 } else {
  68                         _height += i->bundle->nchannels() * row_height();
  69                 }
  70         }
  71
  72         _highest_group_name = 0;
  73         for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
  74                 if ((*i)->visible()) {
  75                         cairo_text_extents_t ext;
  76                         cairo_text_extents (cr, (*i)->name.c_str(), &ext);
  77                         if (ext.height > _highest_group_name) {
  78                                 _highest_group_name = ext.height;
  79                         }
  80                 } else {
  81                         /* add another row_height for a tab for this hidden group */
  82                         _height += row_height ();
  83                 }
  84         }
  85
  86         cairo_destroy (cr);
  87         gdk_pixmap_unref (pm);
  88
  89         _width = _highest_group_name +
  90                 _longest_bundle_name +
  91                 name_pad() * 4;
  92
  93         if (!_matrix->show_only_bundles()) {
  94                 _width += _longest_port_name;
  95                 _width += name_pad() * 2;
  96         }
  97 }
  98
  99
 100 void
 101 PortMatrixRowLabels::render (cairo_t* cr)
 102 {
 103         /* BACKGROUND */
 104
 105         set_source_rgb (cr, background_colour());
 106         cairo_rectangle (cr, 0, 0, _width, _height);
 107         cairo_fill (cr);
 108
 109         /* PORT GROUP NAMES */
 110
 111         double x = 0;
 112         if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 113                 x = 0;
 114         } else {
 115                 x = _width - _highest_group_name - 2 * name_pad();
 116         }
 117
 118         double y = 0;
 119         int g = 0;
 120         for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
 121
 122                 /* compute height of this group */
 123                 double h = 0;
 124                 if (!(*i)->visible() || (*i)->bundles().empty()) {
 125                         h = row_height ();
 126                 } else {
 127                         if (_matrix->show_only_bundles()) {
 128                                 h = (*i)->bundles().size() * row_height();
 129                         } else {
 130                                 h = (*i)->total_channels () * row_height();
 131                         }
 132                 }
 133
 134                 /* rectangle */
 135                 set_source_rgb (cr, get_a_group_colour (g));
 136                 double const rw = _highest_group_name + 2 * name_pad();
 137                 cairo_rectangle (cr, x, y, rw, h);
 138                 cairo_fill (cr);
 139
 140                 /* hence what abbreviation (or not) we need for the group name */
 141                 string const upper = Glib::ustring ((*i)->name).uppercase ();
 142                 pair<string, double> display = fit_to_pixels (cr, upper, h);
 143
 144                 /* plot it */
 145                 set_source_rgb (cr, text_colour());
 146                 cairo_move_to (cr, x + rw - name_pad(), y + (h + display.second) / 2);
 147                 cairo_save (cr);
 148                 cairo_rotate (cr, - M_PI / 2);
 149                 cairo_show_text (cr, display.first.c_str());
 150                 cairo_restore (cr);
 151
 152                 y += h;
 153                 ++g;
 154         }
 155
 156         /* BUNDLE AND PORT NAMES */
 157
 158         y = 0;
 159         int N = 0;
 160         int M = 0;
 161         for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
 162
 163                 if ((*i)->visible ()) {
 164
 165                         PortGroup::BundleList const & bundles = (*i)->bundles ();
 166                         for (PortGroup::BundleList::const_iterator j = bundles.begin(); j != bundles.end(); ++j) {
 167                                 render_bundle_name (cr, j->has_colour ? j->colour : get_a_bundle_colour (N), 0, y, j->bundle);
 168
 169                                 if (!_matrix->show_only_bundles()) {
 170                                         for (uint32_t k = 0; k < j->bundle->nchannels(); ++k) {
 171                                                 Gdk::Color c = j->has_colour ? j->colour : get_a_bundle_colour (M);
 172                                                 render_channel_name (cr, c, 0, y, ARDOUR::BundleChannel (j->bundle, k));
 173                                                 y += row_height();
 174                                                 ++M;
 175                                         }
 176                                 } else {
 177                                         y += row_height();
 178                                 }
 179
 180                                 ++N;
 181                         }
 182
 183                 } else {
 184
 185                         y += row_height ();
 186                 }
 187         }
 188 }
 189
 190 void
 191 PortMatrixRowLabels::button_press (double x, double y, int b, uint32_t t)
 192 {
 193         uint32_t const gw = (_highest_group_name + 2 * name_pad());
 194
 195         pair<boost::shared_ptr<PortGroup>, ARDOUR::BundleChannel> w = y_position_to_group_and_channel (y);
 196
 197         if (
 198                 (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM && x < gw) ||
 199                 (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && x > (_width - gw))
 200                 ) {
 201
 202                 w.second.bundle.reset ();
 203         }
 204
 205         if (b == 1) {
 206
 207                 if (w.second.bundle) {
 208                         _body->highlight_associated_channels (_matrix->row_index(), w.second);
 209                 } else {
 210                         if (w.first) {
 211                                 w.first->set_visible (!w.first->visible());
 212                         }
 213                 }
 214
 215         } else if (b == 3) {
 216
 217                 if (
 218                         (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM && x < (_longest_port_name + name_pad() * 2)) ||
 219                         (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && x > (_longest_port_name + name_pad() * 2))
 220
 221                         ) {
 222
 223                         _matrix->popup_menu (
 224                                 make_pair (boost::shared_ptr<PortGroup> (), ARDOUR::BundleChannel ()),
 225                                 make_pair (w.first, ARDOUR::BundleChannel ()),
 226                                 t
 227                                 );
 228                 } else {
 229                         _matrix->popup_menu (
 230                                 make_pair (boost::shared_ptr<PortGroup> (), ARDOUR::BundleChannel ()),
 231                                 make_pair (w.first, ARDOUR::BundleChannel ()),
 232                                 t
 233                                 );
 234                 }
 235         }
 236 }
 237
 238 double
 239 PortMatrixRowLabels::component_to_parent_x (double x) const
 240 {
 241         return x + _parent_rectangle.get_x();
 242 }
 243
 244 double
 245 PortMatrixRowLabels::parent_to_component_x (double x) const
 246 {
 247         return x - _parent_rectangle.get_x();
 248 }
 249
 250 double
 251 PortMatrixRowLabels::component_to_parent_y (double y) const
 252 {
 253         return y - _body->yoffset() + _parent_rectangle.get_y();
 254 }
 255
 256 double
 257 PortMatrixRowLabels::parent_to_component_y (double y) const
 258 {
 259         return y + _body->yoffset() - _parent_rectangle.get_y();
 260 }
 261
 262
 263 double
 264 PortMatrixRowLabels::bundle_name_x () const
 265 {
 266         double x = 0;
 267
 268         if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 269                 x = _highest_group_name + 2 * name_pad();
 270         } else {
 271                 if (_matrix->show_only_bundles()) {
 272                         x = 0;
 273                 } else {
 274                         x = _longest_port_name + name_pad() * 2;
 275                 }
 276         }
 277
 278         return x;
 279 }
 280
 281 double
 282 PortMatrixRowLabels::port_name_x () const
 283 {
 284         if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 285                 return _longest_bundle_name + _highest_group_name + name_pad() * 4;
 286         } else {
 287                 return 0;
 288         }
 289
 290         return 0;
 291 }
 292
 293 void
 294 PortMatrixRowLabels::render_bundle_name (
 295         cairo_t* cr, Gdk::Color colour, double xoff, double yoff, boost::shared_ptr<ARDOUR::Bundle> b
 296         )
 297 {
 298         double const x = bundle_name_x ();
 299
 300         int const n = _matrix->show_only_bundles() ? 1 : b->nchannels();
 301         set_source_rgb (cr, colour);
 302         cairo_rectangle (cr, xoff + x, yoff, _longest_bundle_name + name_pad() * 2, row_height() * n);
 303         cairo_fill_preserve (cr);
 304         set_source_rgb (cr, background_colour());
 305         cairo_set_line_width (cr, label_border_width ());
 306         cairo_stroke (cr);
 307
 308         double const off = row_height() / 2;
 309
 310 //      if ((*i)->nchannels () > 0 && !_matrix->show_only_bundles()) {
 311 //              /* use the extent of our first channel name so that the bundle name is vertically aligned with it */
 312 //              cairo_text_extents_t ext;
 313 //              cairo_text_extents (cr, (*i)->channel_name(0).c_str(), &ext);
 314 //              off = (row_height() - ext.height) / 2;
 315 //      }
 316
 317         set_source_rgb (cr, text_colour());
 318         cairo_move_to (cr, xoff + x + name_pad(), yoff + name_pad() + off);
 319         cairo_show_text (cr, b->name().c_str());
 320 }
 321
 322 void
 323 PortMatrixRowLabels::render_channel_name (
 324         cairo_t* cr, Gdk::Color colour, double xoff, double yoff, ARDOUR::BundleChannel const& bc
 325         )
 326 {
 327         set_source_rgb (cr, colour);
 328         cairo_rectangle (cr, port_name_x() + xoff, yoff, _longest_port_name + name_pad() * 2, row_height());
 329         cairo_fill_preserve (cr);
 330         set_source_rgb (cr, background_colour());
 331         cairo_set_line_width (cr, label_border_width ());
 332         cairo_stroke (cr);
 333
 334         cairo_text_extents_t ext;
 335         cairo_text_extents (cr, bc.bundle->channel_name(bc.channel).c_str(), &ext);
 336         double const off = (row_height() - ext.height) / 2;
 337
 338         set_source_rgb (cr, text_colour());
 339         cairo_move_to (cr, port_name_x() + xoff + name_pad(), yoff + name_pad() + off);
 340         cairo_show_text (cr, bc.bundle->channel_name(bc.channel).c_str());
 341 }
 342
 343 double
 344 PortMatrixRowLabels::channel_x (ARDOUR::BundleChannel const& bc) const
 345 {
 346         return 0;
 347 }
 348
 349 double
 350 PortMatrixRowLabels::channel_y (ARDOUR::BundleChannel const& bc) const
 351 {
 352         uint32_t n = 0;
 353
 354         PortGroup::BundleList const & bundles = _matrix->rows()->bundles();
 355         PortGroup::BundleList::const_iterator i = bundles.begin ();
 356         while (i != bundles.end() && i->bundle != bc.bundle) {
 357                 if (_matrix->show_only_bundles()) {
 358                         n += 1;
 359                 } else {
 360                         n += i->bundle->nchannels ();
 361                 }
 362                 ++i;
 363         }
 364
 365         if (!_matrix->show_only_bundles()) {
 366                 n += bc.channel;
 367         }
 368
 369         return n * row_height();
 370 }
 371
 372 void
 373 PortMatrixRowLabels::queue_draw_for (ARDOUR::BundleChannel const & bc)
 374 {
 375         if (bc.bundle) {
 376
 377                 if (_matrix->show_only_bundles()) {
 378                         _body->queue_draw_area (
 379                                 component_to_parent_x (bundle_name_x()),
 380                                 component_to_parent_y (channel_y (bc)),
 381                                 _longest_bundle_name + name_pad() * 2,
 382                                 row_height()
 383                                 );
 384                 } else {
 385                         _body->queue_draw_area (
 386                                 component_to_parent_x (port_name_x()),
 387                                 component_to_parent_y (channel_y (bc)),
 388                                 _longest_port_name + name_pad() * 2,
 389                                 row_height()
 390                                 );
 391                 }
 392         }
 393
 394 }
 395
 396 void
 397 PortMatrixRowLabels::mouseover_changed (PortMatrixNode const &)
 398 {
 399         clear_channel_highlights ();
 400         if (_body->mouseover().row.bundle) {
 401                 add_channel_highlight (_body->mouseover().row);
 402         }
 403 }