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