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 <gtkmm/menu.h>
  23 #include <gtkmm/menushell.h>
  24 #include <gtkmm/menu_elems.h>
  25 #include <cairo/cairo.h>
  26 #include "ardour/bundle.h"
  27 #include "port_matrix_row_labels.h"
  28 #include "port_matrix.h"
  29 #include "i18n.h"
  30
  31 PortMatrixRowLabels::PortMatrixRowLabels (PortMatrix* p, PortMatrixBody* b, Location l)
  32         : PortMatrixComponent (b), _port_matrix (p), _menu (0), _location (l)
  33 {
  34
  35 }
  36
  37 PortMatrixRowLabels::~PortMatrixRowLabels ()
  38 {
  39         delete _menu;
  40 }
  41
  42 void
  43 PortMatrixRowLabels::compute_dimensions ()
  44 {
  45         GdkPixmap* pm = gdk_pixmap_new (NULL, 1, 1, 24);
  46         gdk_drawable_set_colormap (pm, gdk_colormap_get_system());
  47         cairo_t* cr = gdk_cairo_create (pm);
  48
  49         _longest_port_name = 0;
  50         _longest_bundle_name = 0;
  51         _height = 0;
  52         ARDOUR::BundleList const r = _body->row_ports().bundles();
  53         for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
  54                 for (uint32_t j = 0; j < (*i)->nchannels(); ++j) {
  55                         cairo_text_extents_t ext;
  56                         cairo_text_extents (cr, (*i)->channel_name(j).c_str(), &ext);
  57                         if (ext.width > _longest_port_name) {
  58                                 _longest_port_name = ext.width;
  59                         }
  60                 }
  61
  62                 cairo_text_extents_t ext;
  63                 cairo_text_extents (cr, (*i)->name().c_str(), &ext);
  64                 if (ext.width > _longest_bundle_name) {
  65                         _longest_bundle_name = ext.width;
  66                 }
  67
  68                 _height += (*i)->nchannels() * row_height();
  69         }
  70
  71         _highest_group_name = 0;
  72         for (PortGroupList::const_iterator i = _body->row_ports().begin(); i != _body->row_ports().end(); ++i) {
  73                 if ((*i)->visible()) {
  74                         cairo_text_extents_t ext;
  75                         cairo_text_extents (cr, (*i)->name.c_str(), &ext);
  76                         if (ext.height > _highest_group_name) {
  77                                 _highest_group_name = ext.height;
  78                         }
  79                 }
  80         }
  81
  82         cairo_destroy (cr);
  83         gdk_pixmap_unref (pm);
  84
  85         _width = _highest_group_name +
  86                 _longest_port_name +
  87                 _longest_bundle_name +
  88                 name_pad() * 6;
  89 }
  90
  91
  92 void
  93 PortMatrixRowLabels::render (cairo_t* cr)
  94 {
  95         /* BACKGROUND */
  96
  97         set_source_rgb (cr, background_colour());
  98         cairo_rectangle (cr, 0, 0, _width, _height);
  99         cairo_fill (cr);
 100
 101         /* PORT GROUP NAMES */
 102
 103         double x = 0;
 104         if (_location == LEFT) {
 105                 x = 0;
 106         } else if (_location == RIGHT) {
 107                 x = _width - _highest_group_name - 2 * name_pad();
 108         }
 109
 110         double y = 0;
 111         int g = 0;
 112         for (PortGroupList::const_iterator i = _body->row_ports().begin(); i != _body->row_ports().end(); ++i) {
 113
 114                 if (!(*i)->visible() || ((*i)->bundles().empty() && (*i)->ports.empty()) ) {
 115                         continue;
 116                 }
 117
 118                 /* compute height of this group */
 119                 double h = 0;
 120                 for (ARDOUR::BundleList::const_iterator j = (*i)->bundles().begin(); j != (*i)->bundles().end(); ++j) {
 121                         h += (*j)->nchannels() * row_height();
 122                 }
 123                 h += (*i)->ports.size() * row_height();
 124
 125                 /* rectangle */
 126                 set_source_rgb (cr, get_a_group_colour (g));
 127                 double const rw = _highest_group_name + 2 * name_pad();
 128                 cairo_rectangle (cr, x, y, rw, h);
 129                 cairo_fill (cr);
 130
 131                 /* hence what abbreviation (or not) we need for the group name */
 132                 std::pair<std::string, double> display = display_port_name (cr, (*i)->name, h);
 133
 134                 /* plot it */
 135                 set_source_rgb (cr, text_colour());
 136                 cairo_move_to (cr, x + rw - name_pad(), y + (h + display.second) / 2);
 137                 cairo_save (cr);
 138                 cairo_rotate (cr, - M_PI / 2);
 139                 cairo_show_text (cr, display.first.c_str());
 140                 cairo_restore (cr);
 141
 142                 y += h;
 143                 ++g;
 144         }
 145
 146         /* BUNDLE NAMES */
 147
 148         x = 0;
 149         if (_location == LEFT) {
 150                 x = _highest_group_name + 2 * name_pad();
 151         } else if (_location == RIGHT) {
 152                 x = _longest_port_name + name_pad() * 2;
 153         }
 154
 155         y = 0;
 156         ARDOUR::BundleList const r = _body->row_ports().bundles();
 157         for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
 158
 159                 Gdk::Color const colour = get_a_bundle_colour (i - r.begin ());
 160                 set_source_rgb (cr, colour);
 161                 cairo_rectangle (cr, x, y, _longest_bundle_name + name_pad() * 2, row_height() * (*i)->nchannels());
 162                 cairo_fill_preserve (cr);
 163                 set_source_rgb (cr, background_colour());
 164                 cairo_set_line_width (cr, label_border_width ());
 165                 cairo_stroke (cr);
 166
 167                 double off = 0;
 168                 if ((*i)->nchannels () > 0) {
 169                         /* use the extent of our first channel name so that the bundle name is vertically aligned with it */
 170                         cairo_text_extents_t ext;
 171                         cairo_text_extents (cr, (*i)->channel_name(0).c_str(), &ext);
 172                         off = (row_height() - ext.height) / 2;
 173                 } else {
 174                         off = row_height() / 2;
 175                 }
 176
 177                 set_source_rgb (cr, text_colour());
 178                 cairo_move_to (cr, x + name_pad(), y + name_pad() + off);
 179                 cairo_show_text (cr, (*i)->name().c_str());
 180
 181                 y += row_height() * (*i)->nchannels ();
 182         }
 183
 184
 185         /* PORT NAMES */
 186
 187         y = 0;
 188         for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
 189                 for (uint32_t j = 0; j < (*i)->nchannels(); ++j) {
 190                         render_port_name (cr, get_a_bundle_colour (i - r.begin()), port_name_x(), y, PortMatrixBundleChannel (*i, j));
 191                         y += row_height();
 192                 }
 193         }
 194 }
 195
 196 void
 197 PortMatrixRowLabels::button_press (double x, double y, int b, uint32_t t)
 198 {
 199         if (b != 3) {
 200                 return;
 201         }
 202
 203         if ( (_location ==  LEFT && x > (_longest_bundle_name + name_pad() * 2)) ||
 204              (_location == RIGHT && x < (_longest_port_name + name_pad() * 2))
 205                 ) {
 206
 207                 delete _menu;
 208
 209                 _menu = new Gtk::Menu;
 210                 _menu->set_name ("ArdourContextMenu");
 211
 212                 Gtk::Menu_Helpers::MenuList& items = _menu->items ();
 213
 214                 uint32_t row = y / row_height ();
 215
 216                 boost::shared_ptr<ARDOUR::Bundle> bundle;
 217                 uint32_t channel = 0;
 218
 219                 ARDOUR::BundleList const r = _body->row_ports().bundles();
 220                 for (ARDOUR::BundleList::const_iterator i = r.begin(); i != r.end(); ++i) {
 221                         if (row < (*i)->nchannels ()) {
 222                                 bundle = *i;
 223                                 channel = row;
 224                                 break;
 225                         } else {
 226                                 row -= (*i)->nchannels ();
 227                         }
 228                 }
 229
 230                 if (bundle) {
 231                         char buf [64];
 232
 233                         if (_port_matrix->can_rename_channels ()) {
 234                                 snprintf (buf, sizeof (buf), _("Rename '%s'..."), bundle->channel_name (channel).c_str());
 235                                 items.push_back (
 236                                         Gtk::Menu_Helpers::MenuElem (
 237                                                 buf,
 238                                                 sigc::bind (sigc::mem_fun (*this, &PortMatrixRowLabels::rename_channel_proxy), bundle, channel)
 239                                                 )
 240                                         );
 241                         }
 242
 243                         snprintf (buf, sizeof (buf), _("Remove '%s'"), bundle->channel_name (channel).c_str());
 244                         items.push_back (
 245                                 Gtk::Menu_Helpers::MenuElem (
 246                                         buf,
 247                                         sigc::bind (sigc::mem_fun (*this, &PortMatrixRowLabels::remove_channel_proxy), bundle, channel)
 248                                         )
 249                                 );
 250
 251                         _menu->popup (1, t);
 252                 }
 253         }
 254 }
 255
 256
 257 void
 258 PortMatrixRowLabels::remove_channel_proxy (boost::weak_ptr<ARDOUR::Bundle> b, uint32_t c)
 259 {
 260         boost::shared_ptr<ARDOUR::Bundle> sb = b.lock ();
 261         if (!sb) {
 262                 return;
 263         }
 264
 265         _port_matrix->remove_channel (sb, c);
 266
 267 }
 268
 269 void
 270 PortMatrixRowLabels::rename_channel_proxy (boost::weak_ptr<ARDOUR::Bundle> b, uint32_t c)
 271 {
 272         boost::shared_ptr<ARDOUR::Bundle> sb = b.lock ();
 273         if (!sb) {
 274                 return;
 275         }
 276
 277         _port_matrix->rename_channel (sb, c);
 278 }
 279
 280
 281 double
 282 PortMatrixRowLabels::component_to_parent_x (double x) const
 283 {
 284         return x + _parent_rectangle.get_x();
 285 }
 286
 287 double
 288 PortMatrixRowLabels::parent_to_component_x (double x) const
 289 {
 290         return x - _parent_rectangle.get_x();
 291 }
 292
 293 double
 294 PortMatrixRowLabels::component_to_parent_y (double y) const
 295 {
 296         return y - _body->yoffset() + _parent_rectangle.get_y();
 297 }
 298
 299 double
 300 PortMatrixRowLabels::parent_to_component_y (double y) const
 301 {
 302         return y + _body->yoffset() - _parent_rectangle.get_y();
 303 }
 304
 305 double
 306 PortMatrixRowLabels::port_name_x () const
 307 {
 308         if (_location == LEFT) {
 309                 return _longest_bundle_name + _highest_group_name + name_pad() * 4;
 310         } else if (_location == RIGHT) {
 311                 return 0;
 312         }
 313
 314         return 0;
 315 }
 316
 317 void
 318 PortMatrixRowLabels::render_port_name (
 319         cairo_t* cr, Gdk::Color colour, double x, double y, PortMatrixBundleChannel const& bc
 320         )
 321 {
 322         set_source_rgb (cr, colour);
 323         cairo_rectangle (cr, x, y, _longest_port_name + name_pad() * 2, row_height());
 324         cairo_fill_preserve (cr);
 325         set_source_rgb (cr, background_colour());
 326         cairo_set_line_width (cr, label_border_width ());
 327         cairo_stroke (cr);
 328
 329         cairo_text_extents_t ext;
 330         cairo_text_extents (cr, bc.bundle->channel_name(bc.channel).c_str(), &ext);
 331         double const off = (row_height() - ext.height) / 2;
 332
 333         set_source_rgb (cr, text_colour());
 334         cairo_move_to (cr, x + name_pad(), y + name_pad() + off);
 335         cairo_show_text (cr, bc.bundle->channel_name(bc.channel).c_str());
 336 }
 337
 338 double
 339 PortMatrixRowLabels::channel_y (PortMatrixBundleChannel const& bc) const
 340 {
 341         double y = 0;
 342
 343         ARDOUR::BundleList::const_iterator i = _body->row_ports().bundles().begin();
 344         while (i != _body->row_ports().bundles().end() && *i != bc.bundle) {
 345                 y += row_height() * (*i)->nchannels();
 346                 ++i;
 347         }
 348
 349         y += row_height() * bc.channel;
 350
 351         return y;
 352 }
 353
 354 void
 355 PortMatrixRowLabels::queue_draw_for (PortMatrixNode const& n)
 356 {
 357         if (n.row.bundle) {
 358
 359                 _body->queue_draw_area (
 360                         component_to_parent_x (port_name_x()),
 361                         component_to_parent_y (channel_y (n.row)),
 362                         _longest_port_name + name_pad() * 2,
 363                         row_height()
 364                         );
 365         }
 366
 367 }
 368
 369 void
 370 PortMatrixRowLabels::mouseover_changed (PortMatrixNode const& old)
 371 {
 372         queue_draw_for (old);
 373         queue_draw_for (_body->mouseover());
 374 }
 375
 376 void
 377 PortMatrixRowLabels::draw_extra (cairo_t* cr)
 378 {
 379         if (_body->mouseover().row.bundle) {
 380                 render_port_name (
 381                         cr,
 382                         mouseover_port_colour (),
 383                         component_to_parent_x (port_name_x()),
 384                         component_to_parent_y (channel_y (_body->mouseover().row)),
 385                         _body->mouseover().row
 386                         );
 387         }
 388 }