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