gtk2_ardour/marker.cc

   1 /*
   2     Copyright (C) 2001 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     $Id$
  19 */
  20
  21 #include <ardour/tempo.h>
  22
  23 #include "marker.h"
  24 #include "public_editor.h"
  25 #include "canvas-simpleline.h"
  26 #include "utils.h"
  27
  28 #include "i18n.h"
  29
  30 Marker::Marker (PublicEditor& ed, ArdourCanvas::Group& parent, guint32 rgba, const string& annotation,
  31                 Type type, gint (*callback)(ArdourCanvas::Item *, GdkEvent *, gpointer), jack_nframes_t frame)
  32
  33         : editor (ed), _type(type)
  34 {
  35         double label_offset = 0;
  36
  37         /* Shapes we use:
  38
  39           Mark:
  40
  41            (0,0) -> (6,0)
  42              ^        |
  43              |        V
  44            (0,5)    (6,5)
  45                \    /
  46                (3,10)
  47
  48
  49            TempoMark:
  50            MeterMark:
  51
  52                (3,0)
  53               /      \
  54            (0,5) -> (6,5)
  55              ^        |
  56              |        V
  57            (0,10)<-(6,10)
  58
  59
  60            Start:
  61
  62            0,0  -> 5,0
  63             |          \
  64             |          10,5
  65             |          /
  66            0,10 -> 5,10
  67
  68            End:
  69
  70              5,0 -> 10,0
  71              /       |
  72            0,5       |
  73              \       |
  74              5,10 <-10,10
  75
  76
  77            TransportStart:
  78
  79              0,0->3,0
  80               |    |
  81               |    |
  82               |    |
  83               |   3,8 -> 7,8
  84               |           |
  85              0,11 ------ 7,11
  86
  87            TransportEnd:
  88
  89                       4,0->7,0
  90                        |    |
  91                        |    |
  92                        |    |
  93              0,8 ---- 4,8   |
  94               |             |
  95              0,11 -------- 7,11
  96
  97
  98              PunchIn:
  99
 100              0,0 ------> 8,0
 101               |       /
 102               |      /
 103               |    4,5
 104               |     |
 105               |     |
 106               |     |
 107              0,11->4,11
 108
 109              PunchOut
 110
 111            0,0 -->-8,0
 112             \       |
 113              \      |
 114              4,5    |
 115               |     |
 116               |     |
 117               |     |
 118              4,11->8,11
 119
 120
 121         */
 122
 123         switch (type) {
 124         case Mark:
 125                 points = new ArdourCanvas::Points ();
 126
 127                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 128                 points->push_back (Gnome::Art::Point (6.0, 0.0));
 129                 points->push_back (Gnome::Art::Point (6.0, 5.0));
 130                 points->push_back (Gnome::Art::Point (3.0, 10.0));
 131                 points->push_back (Gnome::Art::Point (0.0, 5.0));
 132                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 133
 134                 shift = 3;
 135                 label_offset = 8.0;
 136                 break;
 137
 138         case Tempo:
 139         case Meter:
 140
 141                 points = new ArdourCanvas::Points ();
 142                 points->push_back (Gnome::Art::Point (3.0, 0.0));
 143                 points->push_back (Gnome::Art::Point (6.0, 5.0));
 144                 points->push_back (Gnome::Art::Point (6.0, 10.0));
 145                 points->push_back (Gnome::Art::Point (0.0, 10.0));
 146                 points->push_back (Gnome::Art::Point (0.0, 5.0));
 147                 points->push_back (Gnome::Art::Point (3.0, 0.0));
 148
 149                 shift = 3;
 150                 label_offset = 8.0;
 151                 break;
 152
 153         case Start:
 154                 points = new ArdourCanvas::Points ();
 155                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 156                 points->push_back (Gnome::Art::Point (5.0, 0.0));
 157                 points->push_back (Gnome::Art::Point (10.0, 5.0));
 158                 points->push_back (Gnome::Art::Point (5.0, 10.0));
 159                 points->push_back (Gnome::Art::Point (0.0, 10.0));
 160                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 161
 162                 shift = 10;
 163                 label_offset = 12.0;
 164                 break;
 165
 166         case End:
 167                 points = new ArdourCanvas::Points ();
 168                 points->push_back (Gnome::Art::Point (5.0, 0.0));
 169                 points->push_back (Gnome::Art::Point (10.0, 0.0));
 170                 points->push_back (Gnome::Art::Point (10.0, 10.0));
 171                 points->push_back (Gnome::Art::Point (5.0, 10.0));
 172                 points->push_back (Gnome::Art::Point (0.0, 5.0));
 173                 points->push_back (Gnome::Art::Point (5.0, 0.0));
 174
 175                 shift = 0;
 176                 label_offset = 12.0;
 177                 break;
 178
 179         case LoopStart:
 180                 points = new ArdourCanvas::Points ();
 181                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 182                 points->push_back (Gnome::Art::Point (4.0, 0.0));
 183                 points->push_back (Gnome::Art::Point (4.0, 8.0));
 184                 points->push_back (Gnome::Art::Point (8.0, 8.0));
 185                 points->push_back (Gnome::Art::Point (8.0, 11.0));
 186                 points->push_back (Gnome::Art::Point (0.0, 11.0));
 187                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 188
 189                 shift = 0;
 190                 label_offset = 11.0;
 191                 break;
 192
 193         case LoopEnd:
 194                 points = new ArdourCanvas::Points ();
 195                 points->push_back (Gnome::Art::Point (8.0,  0.0));
 196                 points->push_back (Gnome::Art::Point (8.0, 11.0));
 197                 points->push_back (Gnome::Art::Point (0.0, 11.0));
 198                 points->push_back (Gnome::Art::Point (0.0, 8.0));
 199                 points->push_back (Gnome::Art::Point (4.0, 8.0));
 200                 points->push_back (Gnome::Art::Point (4.0, 0.0));
 201                 points->push_back (Gnome::Art::Point (8.0, 0.0));
 202
 203                 shift = 8;
 204                 label_offset = 11.0;
 205                 break;
 206
 207         case  PunchIn:
 208                 points = new ArdourCanvas::Points ();
 209                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 210                 points->push_back (Gnome::Art::Point (8.0, 0.0));
 211                 points->push_back (Gnome::Art::Point (4.0, 4.0));
 212                 points->push_back (Gnome::Art::Point (4.0, 11.0));
 213                 points->push_back (Gnome::Art::Point (0.0, 11.0));
 214                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 215
 216                 shift = 0;
 217                 label_offset = 10.0;
 218                 break;
 219
 220         case  PunchOut:
 221                 points = new ArdourCanvas::Points ();
 222                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 223                 points->push_back (Gnome::Art::Point (8.0, 0.0));
 224                 points->push_back (Gnome::Art::Point (8.0, 11.0));
 225                 points->push_back (Gnome::Art::Point (4.0, 11.0));
 226                 points->push_back (Gnome::Art::Point (4.0, 4.0));
 227                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 228
 229                 shift = 8;
 230                 label_offset = 11.0;
 231                 break;
 232
 233         }
 234
 235         frame_position = frame;
 236         unit_position = editor.frame_to_unit (frame);
 237
 238         /* adjust to properly locate the tip */
 239
 240         unit_position -= shift;
 241
 242         group = &parent;
 243         group->set_property ("x", unit_position);
 244         group->set_property ("y", 1.0);
 245         // cerr << "set mark al points, nc = " << points->num_points << endl;
 246         mark = new ArdourCanvas::Polygon (*group);
 247         mark->set_property ("points", points);
 248         mark->set_property ("fill_color_rgba", rgba);
 249         mark->set_property ("outline_color", Gdk::Color ("black"));
 250
 251         Pango::FontDescription font = get_font_for_style (N_("MarkerText"));
 252
 253         text = new ArdourCanvas::Text (*group);
 254         text->set_property ("text", annotation.c_str());
 255         text->set_property ("x", label_offset);
 256         text->set_property ("y", 0.0);
 257         text->set_property ("fontdesc", font);
 258         text->set_property ("anchor", Gtk::ANCHOR_NW);
 259         text->set_property ("fill_color", Gdk::Color ("black"));
 260
 261         group->signal_event().connect() (bind (mem_fun (editor, &PublicEditor::reposition), group, this));
 262 }
 263
 264 Marker::~Marker ()
 265 {
 266         /* destroying the group destroys its contents */
 267         delete text;
 268         delete mark;
 269         delete points;
 270 }
 271
 272 void
 273 Marker::set_name (const string& name)
 274 {
 275         text->set_property ("text", name.c_str());
 276 }
 277
 278 void
 279 Marker::set_position (jack_nframes_t frame)
 280 {
 281         double new_unit_position = editor.frame_to_unit (frame);
 282         new_unit_position -= shift;
 283         group->move (new_unit_position - unit_position, 0.0);
 284         frame_position = frame;
 285         unit_position = new_unit_position;
 286 }
 287
 288 void
 289 Marker::reposition ()
 290 {
 291         set_position (frame_position);
 292 }
 293
 294 void
 295 Marker::show ()
 296 {
 297         group->show();
 298 }
 299
 300 void
 301 Marker::hide ()
 302 {
 303         group->hide();
 304 }
 305
 306 void
 307 Marker::set_color_rgba (uint32_t color)
 308 {
 309         mark->set_property ("fill_color_rgba", color);
 310 }
 311
 312 /***********************************************************************/
 313
 314 TempoMarker::TempoMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text,
 315                           ARDOUR::TempoSection& temp,
 316                           gint (*callback)(ArdourCanvas::Item *, GdkEvent *, gpointer))
 317         : Marker (editor, parent, rgba, text, Tempo, callback, 0),
 318           _tempo (temp)
 319 {
 320         set_position (_tempo.frame());
 321         group->set_data ("tempo_marker", this);
 322 }
 323
 324 TempoMarker::~TempoMarker ()
 325 {
 326 }
 327
 328 /***********************************************************************/
 329
 330 MeterMarker::MeterMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text,
 331                           ARDOUR::MeterSection& m,
 332                           gint (*callback)(ArdourCanvas::Item *, GdkEvent *, gpointer))
 333         : Marker (editor, parent, rgba, text, Meter, callback, 0),
 334           _meter (m)
 335 {
 336         set_position (_meter.frame());
 337         gtk_object_set_data (GTK_OBJECT(group), "meter_marker", this);
 338 }
 339
 340 MeterMarker::~MeterMarker ()
 341 {
 342 }