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         PortGroup::BundleList const r = _matrix->rows()->bundles();
  47         for (PortGroup::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
  48                 for (uint32_t j = 0; j < i->bundle->nchannels(); ++j) {
  49                         cairo_text_extents_t ext;
  50                         cairo_text_extents (cr, i->bundle->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->bundle->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->bundle->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         int N = 0;
 154         PortGroup::BundleList const r = _matrix->rows()->bundles();
 155         for (PortGroup::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
 156                 render_bundle_name (cr, i->has_colour ? i->colour : get_a_bundle_colour (N), 0, y, i->bundle);
 157                 int const n = _matrix->show_only_bundles() ? 1 : i->bundle->nchannels();
 158                 y += row_height() * n;
 159                 ++N;
 160         }
 161
 162
 163         /* PORT NAMES */
 164
 165         if (!_matrix->show_only_bundles()) {
 166                 y = 0;
 167                 N = 0;
 168                 for (PortGroup::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
 169                         for (uint32_t j = 0; j < i->bundle->nchannels(); ++j) {
 170                                 render_channel_name (cr, i->has_colour ? i->colour : get_a_bundle_colour (N), 0, y, ARDOUR::BundleChannel (i->bundle, j));
 171                                 y += row_height();
 172                         }
 173                         ++N;
 174                 }
 175         }
 176 }
 177
 178 void
 179 PortMatrixRowLabels::button_press (double x, double y, int b, uint32_t t)
 180 {
 181         switch (b) {
 182         case 1:
 183                 _body->highlight_associated_channels (_matrix->row_index(), y / row_height ());
 184                 break;
 185         case 3:
 186                 maybe_popup_context_menu (x, y, t);
 187                 break;
 188         }
 189 }
 190
 191 void
 192 PortMatrixRowLabels::maybe_popup_context_menu (double x, double y, uint32_t t)
 193 {
 194         if ( (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM && x > (_longest_bundle_name + name_pad() * 2)) ||
 195              (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && x < (_longest_port_name + name_pad() * 2))
 196                 ) {
 197
 198                 _matrix->popup_channel_context_menu (_matrix->row_index(), y / row_height(), t);
 199
 200         }
 201 }
 202
 203 double
 204 PortMatrixRowLabels::component_to_parent_x (double x) const
 205 {
 206         return x + _parent_rectangle.get_x();
 207 }
 208
 209 double
 210 PortMatrixRowLabels::parent_to_component_x (double x) const
 211 {
 212         return x - _parent_rectangle.get_x();
 213 }
 214
 215 double
 216 PortMatrixRowLabels::component_to_parent_y (double y) const
 217 {
 218         return y - _body->yoffset() + _parent_rectangle.get_y();
 219 }
 220
 221 double
 222 PortMatrixRowLabels::parent_to_component_y (double y) const
 223 {
 224         return y + _body->yoffset() - _parent_rectangle.get_y();
 225 }
 226
 227
 228 double
 229 PortMatrixRowLabels::bundle_name_x () const
 230 {
 231         double x = 0;
 232
 233         if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 234                 x = _highest_group_name + 2 * name_pad();
 235         } else {
 236                 if (_matrix->show_only_bundles()) {
 237                         x = 0;
 238                 } else {
 239                         x = _longest_port_name + name_pad() * 2;
 240                 }
 241         }
 242
 243         return x;
 244 }
 245
 246 double
 247 PortMatrixRowLabels::port_name_x () const
 248 {
 249         if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 250                 return _longest_bundle_name + _highest_group_name + name_pad() * 4;
 251         } else {
 252                 return 0;
 253         }
 254
 255         return 0;
 256 }
 257
 258 void
 259 PortMatrixRowLabels::render_bundle_name (
 260         cairo_t* cr, Gdk::Color colour, double xoff, double yoff, boost::shared_ptr<ARDOUR::Bundle> b
 261         )
 262 {
 263         double const x = bundle_name_x ();
 264
 265         int const n = _matrix->show_only_bundles() ? 1 : b->nchannels();
 266         set_source_rgb (cr, colour);
 267         cairo_rectangle (cr, xoff + x, yoff, _longest_bundle_name + name_pad() * 2, row_height() * n);
 268         cairo_fill_preserve (cr);
 269         set_source_rgb (cr, background_colour());
 270         cairo_set_line_width (cr, label_border_width ());
 271         cairo_stroke (cr);
 272
 273         double const off = row_height() / 2;
 274
 275 //      if ((*i)->nchannels () > 0 && !_matrix->show_only_bundles()) {
 276 //              /* use the extent of our first channel name so that the bundle name is vertically aligned with it */
 277 //              cairo_text_extents_t ext;
 278 //              cairo_text_extents (cr, (*i)->channel_name(0).c_str(), &ext);
 279 //              off = (row_height() - ext.height) / 2;
 280 //      }
 281
 282         set_source_rgb (cr, text_colour());
 283         cairo_move_to (cr, xoff + x + name_pad(), yoff + name_pad() + off);
 284         cairo_show_text (cr, b->name().c_str());
 285 }
 286
 287 void
 288 PortMatrixRowLabels::render_channel_name (
 289         cairo_t* cr, Gdk::Color colour, double xoff, double yoff, ARDOUR::BundleChannel const& bc
 290         )
 291 {
 292         set_source_rgb (cr, colour);
 293         cairo_rectangle (cr, port_name_x() + xoff, yoff, _longest_port_name + name_pad() * 2, row_height());
 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         cairo_text_extents_t ext;
 300         cairo_text_extents (cr, bc.bundle->channel_name(bc.channel).c_str(), &ext);
 301         double const off = (row_height() - ext.height) / 2;
 302
 303         set_source_rgb (cr, text_colour());
 304         cairo_move_to (cr, port_name_x() + xoff + name_pad(), yoff + name_pad() + off);
 305         cairo_show_text (cr, bc.bundle->channel_name(bc.channel).c_str());
 306 }
 307
 308 double
 309 PortMatrixRowLabels::channel_x (ARDOUR::BundleChannel const& bc) const
 310 {
 311         return 0;
 312 }
 313
 314 double
 315 PortMatrixRowLabels::channel_y (ARDOUR::BundleChannel const& bc) const
 316 {
 317         uint32_t n = 0;
 318
 319         PortGroup::BundleList const & bundles = _matrix->rows()->bundles();
 320         PortGroup::BundleList::const_iterator i = bundles.begin ();
 321         while (i != bundles.end() && i->bundle != bc.bundle) {
 322                 if (_matrix->show_only_bundles()) {
 323                         n += 1;
 324                 } else {
 325                         n += i->bundle->nchannels ();
 326                 }
 327                 ++i;
 328         }
 329
 330         if (!_matrix->show_only_bundles()) {
 331                 n += bc.channel;
 332         }
 333
 334         return n * row_height();
 335 }
 336
 337 void
 338 PortMatrixRowLabels::queue_draw_for (ARDOUR::BundleChannel const & bc)
 339 {
 340         if (bc.bundle) {
 341
 342                 if (_matrix->show_only_bundles()) {
 343                         _body->queue_draw_area (
 344                                 component_to_parent_x (bundle_name_x()),
 345                                 component_to_parent_y (channel_y (bc)),
 346                                 _longest_bundle_name + name_pad() * 2,
 347                                 row_height()
 348                                 );
 349                 } else {
 350                         _body->queue_draw_area (
 351                                 component_to_parent_x (port_name_x()),
 352                                 component_to_parent_y (channel_y (bc)),
 353                                 _longest_port_name + name_pad() * 2,
 354                                 row_height()
 355                                 );
 356                 }
 357         }
 358
 359 }
 360
 361 void
 362 PortMatrixRowLabels::mouseover_changed (PortMatrixNode const &)
 363 {
 364         clear_channel_highlights ();
 365         if (_body->mouseover().row.bundle) {
 366                 add_channel_highlight (_body->mouseover().row);
 367         }
 368 }