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 += grid_spacing ();
  67                 } else {
  68                         _height += i->bundle->nchannels() * grid_spacing();
  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 grid_spacing for a tab for this hidden group */
  82                         _height += grid_spacing ();
  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()) {
 125                         h = grid_spacing ();
 126                 } else {
 127                         if (_matrix->show_only_bundles()) {
 128                                 h = (*i)->bundles().size() * grid_spacing();
 129                         } else {
 130                                 h = (*i)->total_channels () * grid_spacing();
 131                         }
 132                 }
 133
 134                 if (h == 0) {
 135                         continue;
 136                 }
 137
 138                 /* rectangle */
 139                 set_source_rgb (cr, get_a_group_colour (g));
 140                 double const rw = _highest_group_name + 2 * name_pad();
 141                 cairo_rectangle (cr, x, y, rw, h);
 142                 cairo_fill (cr);
 143
 144                 /* hence what abbreviation (or not) we need for the group name */
 145                 string const upper = Glib::ustring ((*i)->name).uppercase ();
 146                 pair<string, double> display = fit_to_pixels (cr, upper, h);
 147
 148                 /* plot it */
 149                 set_source_rgb (cr, text_colour());
 150                 cairo_move_to (cr, x + rw - name_pad(), y + (h + display.second) / 2);
 151                 cairo_save (cr);
 152                 cairo_rotate (cr, - M_PI / 2);
 153                 cairo_show_text (cr, display.first.c_str());
 154                 cairo_restore (cr);
 155
 156                 y += h;
 157                 ++g;
 158         }
 159
 160         /* BUNDLE AND PORT NAMES */
 161
 162         y = 0;
 163         int N = 0;
 164         int M = 0;
 165         for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
 166
 167                 if ((*i)->visible ()) {
 168
 169                         PortGroup::BundleList const & bundles = (*i)->bundles ();
 170                         for (PortGroup::BundleList::const_iterator j = bundles.begin(); j != bundles.end(); ++j) {
 171                                 render_bundle_name (cr, j->has_colour ? j->colour : get_a_bundle_colour (N), 0, y, j->bundle);
 172
 173                                 if (!_matrix->show_only_bundles()) {
 174                                         for (uint32_t k = 0; k < j->bundle->nchannels(); ++k) {
 175                                                 Gdk::Color c = j->has_colour ? j->colour : get_a_bundle_colour (M);
 176                                                 render_channel_name (cr, c, 0, y, ARDOUR::BundleChannel (j->bundle, k));
 177                                                 y += grid_spacing();
 178                                                 ++M;
 179                                         }
 180                                 } else {
 181                                         y += grid_spacing();
 182                                 }
 183
 184                                 ++N;
 185                         }
 186
 187                 } else {
 188
 189                         y += grid_spacing ();
 190                 }
 191         }
 192 }
 193
 194 void
 195 PortMatrixRowLabels::button_press (double x, double y, int b, uint32_t t)
 196 {
 197         uint32_t const gw = (_highest_group_name + 2 * name_pad());
 198
 199         pair<boost::shared_ptr<PortGroup>, ARDOUR::BundleChannel> w = position_to_group_and_channel (y / grid_spacing (), _matrix->rows());
 200
 201         if (
 202                 (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM && x < gw) ||
 203                 (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && x > (_width - gw))
 204                 ) {
 205
 206                 w.second.bundle.reset ();
 207         }
 208
 209         if (b == 1) {
 210
 211                 if (w.second.bundle) {
 212                         _body->highlight_associated_channels (_matrix->row_index(), w.second);
 213                 } else {
 214                         if (w.first) {
 215                                 w.first->set_visible (!w.first->visible());
 216                         }
 217                 }
 218
 219         } else if (b == 3) {
 220
 221                 _matrix->popup_menu (
 222                         make_pair (boost::shared_ptr<PortGroup> (), ARDOUR::BundleChannel ()),
 223                         w,
 224                         t
 225                         );
 226         }
 227 }
 228
 229 double
 230 PortMatrixRowLabels::component_to_parent_x (double x) const
 231 {
 232         return x + _parent_rectangle.get_x();
 233 }
 234
 235 double
 236 PortMatrixRowLabels::parent_to_component_x (double x) const
 237 {
 238         return x - _parent_rectangle.get_x();
 239 }
 240
 241 double
 242 PortMatrixRowLabels::component_to_parent_y (double y) const
 243 {
 244         return y - _body->yoffset() + _parent_rectangle.get_y();
 245 }
 246
 247 double
 248 PortMatrixRowLabels::parent_to_component_y (double y) const
 249 {
 250         return y + _body->yoffset() - _parent_rectangle.get_y();
 251 }
 252
 253
 254 double
 255 PortMatrixRowLabels::bundle_name_x () const
 256 {
 257         double x = 0;
 258
 259         if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 260                 x = _highest_group_name + 2 * name_pad();
 261         } else {
 262                 if (_matrix->show_only_bundles()) {
 263                         x = 0;
 264                 } else {
 265                         x = _longest_port_name + name_pad() * 2;
 266                 }
 267         }
 268
 269         return x;
 270 }
 271
 272 double
 273 PortMatrixRowLabels::port_name_x () const
 274 {
 275         if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 276                 return _longest_bundle_name + _highest_group_name + name_pad() * 4;
 277         } else {
 278                 return 0;
 279         }
 280
 281         return 0;
 282 }
 283
 284 void
 285 PortMatrixRowLabels::render_bundle_name (
 286         cairo_t* cr, Gdk::Color colour, double xoff, double yoff, boost::shared_ptr<ARDOUR::Bundle> b
 287         )
 288 {
 289         double const x = bundle_name_x ();
 290
 291         int const n = _matrix->show_only_bundles() ? 1 : b->nchannels();
 292         set_source_rgb (cr, colour);
 293         cairo_rectangle (cr, xoff + x, yoff, _longest_bundle_name + name_pad() * 2, grid_spacing() * n);
 294         cairo_fill_preserve (cr);
 295         set_source_rgb (cr, background_colour());
 296         cairo_set_line_width (cr, label_border_width ());
 297         cairo_stroke (cr);
 298
 299         double const off = grid_spacing() / 2;
 300
 301 //      if ((*i)->nchannels () > 0 && !_matrix->show_only_bundles()) {
 302 //              /* use the extent of our first channel name so that the bundle name is vertically aligned with it */
 303 //              cairo_text_extents_t ext;
 304 //              cairo_text_extents (cr, (*i)->channel_name(0).c_str(), &ext);
 305 //              off = (grid_spacing() - ext.height) / 2;
 306 //      }
 307
 308         set_source_rgb (cr, text_colour());
 309         cairo_move_to (cr, xoff + x + name_pad(), yoff + name_pad() + off);
 310         cairo_show_text (cr, b->name().c_str());
 311 }
 312
 313 void
 314 PortMatrixRowLabels::render_channel_name (
 315         cairo_t* cr, Gdk::Color colour, double xoff, double yoff, ARDOUR::BundleChannel const& bc
 316         )
 317 {
 318         set_source_rgb (cr, colour);
 319         cairo_rectangle (cr, port_name_x() + xoff, yoff, _longest_port_name + name_pad() * 2, grid_spacing());
 320         cairo_fill_preserve (cr);
 321         set_source_rgb (cr, background_colour());
 322         cairo_set_line_width (cr, label_border_width ());
 323         cairo_stroke (cr);
 324
 325         cairo_text_extents_t ext;
 326         cairo_text_extents (cr, bc.bundle->channel_name(bc.channel).c_str(), &ext);
 327         double const off = (grid_spacing() - ext.height) / 2;
 328
 329         set_source_rgb (cr, text_colour());
 330         cairo_move_to (cr, port_name_x() + xoff + name_pad(), yoff + name_pad() + off);
 331         cairo_show_text (cr, bc.bundle->channel_name(bc.channel).c_str());
 332 }
 333
 334 double
 335 PortMatrixRowLabels::channel_x (ARDOUR::BundleChannel const& bc) const
 336 {
 337         return 0;
 338 }
 339
 340 double
 341 PortMatrixRowLabels::channel_y (ARDOUR::BundleChannel const& bc) const
 342 {
 343         return channel_to_position (bc, _matrix->rows()) * grid_spacing ();
 344 }
 345
 346 void
 347 PortMatrixRowLabels::queue_draw_for (ARDOUR::BundleChannel const & bc)
 348 {
 349         if (bc.bundle) {
 350
 351                 if (_matrix->show_only_bundles()) {
 352                         _body->queue_draw_area (
 353                                 component_to_parent_x (bundle_name_x()),
 354                                 component_to_parent_y (channel_y (bc)),
 355                                 _longest_bundle_name + name_pad() * 2,
 356                                 grid_spacing()
 357                                 );
 358                 } else {
 359                         _body->queue_draw_area (
 360                                 component_to_parent_x (port_name_x()),
 361                                 component_to_parent_y (channel_y (bc)),
 362                                 _longest_port_name + name_pad() * 2,
 363                                 grid_spacing()
 364                                 );
 365                 }
 366         }
 367
 368 }
 369
 370 void
 371 PortMatrixRowLabels::mouseover_changed (PortMatrixNode const &)
 372 {
 373         clear_channel_highlights ();
 374         if (_body->mouseover().row.bundle) {
 375                 add_channel_highlight (_body->mouseover().row);
 376         }
 377 }