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         _highest_group_name = 0;
  49
  50         for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
  51
  52                 PortGroup::BundleList const r = (*i)->bundles ();
  53                 for (PortGroup::BundleList::const_iterator j = r.begin(); j != r.end(); ++j) {
  54
  55                         for (uint32_t k = 0; k < j->bundle->nchannels(); ++k) {
  56                                 cairo_text_extents_t ext;
  57                                 cairo_text_extents (cr, j->bundle->channel_name(k).c_str(), &ext);
  58                                 if (ext.width > _longest_port_name) {
  59                                         _longest_port_name = ext.width;
  60                                 }
  61                         }
  62
  63                         cairo_text_extents_t ext;
  64                         cairo_text_extents (cr, j->bundle->name().c_str(), &ext);
  65                         if (ext.width > _longest_bundle_name) {
  66                                 _longest_bundle_name = ext.width;
  67                         }
  68                 }
  69
  70                 _height += group_size (*i) * grid_spacing ();
  71
  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         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                 /* compute height of this group */
 116                 double h = 0;
 117                 if (!(*i)->visible()) {
 118                         h = grid_spacing ();
 119                 } else {
 120                         if (_matrix->show_only_bundles()) {
 121                                 h = (*i)->bundles().size() * grid_spacing();
 122                         } else {
 123                                 h = (*i)->total_channels () * grid_spacing();
 124                         }
 125                 }
 126
 127                 if (h == 0) {
 128                         continue;
 129                 }
 130
 131                 /* rectangle */
 132                 set_source_rgb (cr, get_a_group_colour (g));
 133                 double const rw = _highest_group_name + 2 * name_pad();
 134                 cairo_rectangle (cr, x, y, rw, h);
 135                 cairo_fill (cr);
 136
 137                 /* hence what abbreviation (or not) we need for the group name */
 138                 string const upper = Glib::ustring ((*i)->name).uppercase ();
 139                 pair<string, double> display = fit_to_pixels (cr, upper, h);
 140
 141                 /* plot it */
 142                 set_source_rgb (cr, text_colour());
 143                 cairo_move_to (cr, x + rw - name_pad(), y + (h + display.second) / 2);
 144                 cairo_save (cr);
 145                 cairo_rotate (cr, - M_PI / 2);
 146                 cairo_show_text (cr, display.first.c_str());
 147                 cairo_restore (cr);
 148
 149                 y += h;
 150                 ++g;
 151         }
 152
 153         /* BUNDLE AND PORT NAMES */
 154
 155         y = 0;
 156         int N = 0;
 157         int M = 0;
 158         for (PortGroupList::List::const_iterator i = _matrix->rows()->begin(); i != _matrix->rows()->end(); ++i) {
 159
 160                 if ((*i)->visible ()) {
 161
 162                         PortGroup::BundleList const & bundles = (*i)->bundles ();
 163                         for (PortGroup::BundleList::const_iterator j = bundles.begin(); j != bundles.end(); ++j) {
 164                                 render_bundle_name (cr, background_colour (), j->has_colour ? j->colour : get_a_bundle_colour (N), 0, y, j->bundle);
 165
 166                                 if (!_matrix->show_only_bundles()) {
 167                                         for (uint32_t k = 0; k < j->bundle->nchannels(); ++k) {
 168                                                 Gdk::Color c = j->has_colour ? j->colour : get_a_bundle_colour (M);
 169                                                 render_channel_name (cr, background_colour (), c, 0, y, ARDOUR::BundleChannel (j->bundle, k));
 170                                                 y += grid_spacing();
 171                                                 ++M;
 172                                         }
 173                                 } else {
 174                                         y += grid_spacing();
 175                                 }
 176
 177                                 ++N;
 178                         }
 179
 180                 } else {
 181
 182                         y += grid_spacing ();
 183                 }
 184         }
 185 }
 186
 187 void
 188 PortMatrixRowLabels::button_press (double x, double y, int b, uint32_t t)
 189 {
 190         uint32_t const gw = (_highest_group_name + 2 * name_pad());
 191
 192         pair<boost::shared_ptr<PortGroup>, ARDOUR::BundleChannel> w = position_to_group_and_channel (y / grid_spacing (), _matrix->rows());
 193
 194         if (
 195                 (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM && x < gw) ||
 196                 (_matrix->arrangement() == PortMatrix::TOP_TO_RIGHT && x > (_width - gw))
 197                 ) {
 198
 199                 w.second.bundle.reset ();
 200         }
 201
 202         if (b == 1) {
 203
 204                 if (w.second.bundle) {
 205                         _body->highlight_associated_channels (_matrix->row_index(), w.second);
 206                 } else {
 207                         if (w.first) {
 208                                 w.first->set_visible (!w.first->visible());
 209                         }
 210                 }
 211
 212         } else if (b == 3) {
 213
 214                 _matrix->popup_menu (
 215                         make_pair (boost::shared_ptr<PortGroup> (), ARDOUR::BundleChannel ()),
 216                         w,
 217                         t
 218                         );
 219         }
 220 }
 221
 222 double
 223 PortMatrixRowLabels::component_to_parent_x (double x) const
 224 {
 225         return x + _parent_rectangle.get_x();
 226 }
 227
 228 double
 229 PortMatrixRowLabels::parent_to_component_x (double x) const
 230 {
 231         return x - _parent_rectangle.get_x();
 232 }
 233
 234 double
 235 PortMatrixRowLabels::component_to_parent_y (double y) const
 236 {
 237         return y - _body->yoffset() + _parent_rectangle.get_y();
 238 }
 239
 240 double
 241 PortMatrixRowLabels::parent_to_component_y (double y) const
 242 {
 243         return y + _body->yoffset() - _parent_rectangle.get_y();
 244 }
 245
 246
 247 double
 248 PortMatrixRowLabels::bundle_name_x () const
 249 {
 250         double x = 0;
 251
 252         if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 253                 x = _highest_group_name + 2 * name_pad();
 254         } else {
 255                 if (_matrix->show_only_bundles()) {
 256                         x = 0;
 257                 } else {
 258                         x = _longest_port_name + name_pad() * 2;
 259                 }
 260         }
 261
 262         return x;
 263 }
 264
 265 double
 266 PortMatrixRowLabels::port_name_x () const
 267 {
 268         if (_matrix->arrangement() == PortMatrix::LEFT_TO_BOTTOM) {
 269                 return _longest_bundle_name + _highest_group_name + name_pad() * 4;
 270         } else {
 271                 return 0;
 272         }
 273
 274         return 0;
 275 }
 276
 277 void
 278 PortMatrixRowLabels::render_bundle_name (
 279         cairo_t* cr, Gdk::Color fg_colour, Gdk::Color bg_colour, double xoff, double yoff, boost::shared_ptr<ARDOUR::Bundle> b
 280         )
 281 {
 282         double const x = bundle_name_x ();
 283
 284         int const n = _matrix->show_only_bundles() ? 1 : b->nchannels();
 285         set_source_rgb (cr, bg_colour);
 286         cairo_rectangle (cr, xoff + x, yoff, _longest_bundle_name + name_pad() * 2, grid_spacing() * n);
 287         cairo_fill_preserve (cr);
 288         set_source_rgb (cr, fg_colour);
 289         cairo_set_line_width (cr, label_border_width ());
 290         cairo_stroke (cr);
 291
 292         double const off = grid_spacing() / 2;
 293
 294 //      if ((*i)->nchannels () > 0 && !_matrix->show_only_bundles()) {
 295 //              /* use the extent of our first channel name so that the bundle name is vertically aligned with it */
 296 //              cairo_text_extents_t ext;
 297 //              cairo_text_extents (cr, (*i)->channel_name(0).c_str(), &ext);
 298 //              off = (grid_spacing() - ext.height) / 2;
 299 //      }
 300
 301         set_source_rgb (cr, text_colour());
 302         cairo_move_to (cr, xoff + x + name_pad(), yoff + name_pad() + off);
 303         cairo_show_text (cr, b->name().c_str());
 304 }
 305
 306 void
 307 PortMatrixRowLabels::render_channel_name (
 308         cairo_t* cr, Gdk::Color fg_colour, Gdk::Color bg_colour, double xoff, double yoff, ARDOUR::BundleChannel const& bc
 309         )
 310 {
 311         set_source_rgb (cr, bg_colour);
 312         cairo_rectangle (cr, port_name_x() + xoff, yoff, _longest_port_name + name_pad() * 2, grid_spacing());
 313         cairo_fill_preserve (cr);
 314         set_source_rgb (cr, fg_colour);
 315         cairo_set_line_width (cr, label_border_width ());
 316         cairo_stroke (cr);
 317
 318         cairo_text_extents_t ext;
 319         cairo_text_extents (cr, bc.bundle->channel_name(bc.channel).c_str(), &ext);
 320         double const off = (grid_spacing() - ext.height) / 2;
 321
 322         set_source_rgb (cr, text_colour());
 323         cairo_move_to (cr, port_name_x() + xoff + name_pad(), yoff + name_pad() + off);
 324         cairo_show_text (cr, bc.bundle->channel_name(bc.channel).c_str());
 325 }
 326
 327 double
 328 PortMatrixRowLabels::channel_x (ARDOUR::BundleChannel const &) const
 329 {
 330         return 0;
 331 }
 332
 333 double
 334 PortMatrixRowLabels::channel_y (ARDOUR::BundleChannel const& bc) const
 335 {
 336         return channel_to_position (bc, _matrix->rows()) * grid_spacing ();
 337 }
 338
 339 void
 340 PortMatrixRowLabels::queue_draw_for (ARDOUR::BundleChannel const & bc)
 341 {
 342         if (bc.bundle) {
 343
 344                 if (_matrix->show_only_bundles()) {
 345                         _body->queue_draw_area (
 346                                 component_to_parent_x (bundle_name_x()) - 1,
 347                                 component_to_parent_y (channel_y (bc)) - 1,
 348                                 _longest_bundle_name + name_pad() * 2 + 2,
 349                                 grid_spacing() + 2
 350                                 );
 351                 } else {
 352                         _body->queue_draw_area (
 353                                 component_to_parent_x (port_name_x()) - 1,
 354                                 component_to_parent_y (channel_y (bc)) - 1,
 355                                 _longest_port_name + name_pad() * 2 + 2,
 356                                 grid_spacing() + 2
 357                                 );
 358                 }
 359         }
 360
 361 }
 362
 363 void
 364 PortMatrixRowLabels::mouseover_changed (PortMatrixNode const &)
 365 {
 366         clear_channel_highlights ();
 367         if (_body->mouseover().column.bundle && _body->mouseover().row.bundle) {
 368                 add_channel_highlight (_body->mouseover().row);
 369         }
 370 }