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, Gnome::Canvas::Group& parent, guint32 rgba, const string& annotation,
  31                 Type type, gint (*callback)(Gnome::Canvas::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 Gnome::Canvas::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
 130                 points->push_back (Gnome::Art::Point (6.0, 5.0));
 131                 points->push_back (Gnome::Art::Point (3.0, 10.0));
 132
 133                 points->push_back (Gnome::Art::Point (0.0, 5.0));
 134                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 135
 136                 shift = 3;
 137                 label_offset = 8.0;
 138                 break;
 139
 140         case Tempo:
 141         case Meter:
 142
 143                 points = new Gnome::Canvas::Points ();
 144                 points->push_back (Gnome::Art::Point (3.0, 0.0));
 145                 points->push_back (Gnome::Art::Point (6.0, 5.0));
 146
 147                 points->push_back (Gnome::Art::Point (6.0, 10.0));
 148                 points->push_back (Gnome::Art::Point (0.0, 10.0));
 149                 points->push_back (Gnome::Art::Point (0.0, 5.0));
 150                 points->push_back (Gnome::Art::Point (3.0, 0.0));
 151
 152                 shift = 3;
 153                 label_offset = 8.0;
 154                 break;
 155
 156         case Start:
 157                 points = new Gnome::Canvas::Points ();
 158                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 159                 points->push_back (Gnome::Art::Point (5.0, 0.0));
 160                 points->push_back (Gnome::Art::Point (10.0, 5.0));
 161                 points->push_back (Gnome::Art::Point (5.0, 10.0));
 162                 points->push_back (Gnome::Art::Point (0.0, 10.0));
 163                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 164
 165                 shift = 10;
 166                 label_offset = 12.0;
 167                 break;
 168
 169         case End:
 170                 points = new Gnome::Canvas::Points ();
 171                 points->push_back (Gnome::Art::Point (5.0, 0.0));
 172                 points->push_back (Gnome::Art::Point (10.0, 0.0));
 173                 points->push_back (Gnome::Art::Point (10.0, 10.0));
 174                 points->push_back (Gnome::Art::Point (5.0, 10.0));
 175                 points->push_back (Gnome::Art::Point (0.0, 5.0));
 176                 points->push_back (Gnome::Art::Point (5.0, 0.0));
 177
 178                 shift = 0;
 179                 label_offset = 12.0;
 180                 break;
 181
 182         case LoopStart:
 183                 points = new Gnome::Canvas::Points ();
 184                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 185                 points->push_back (Gnome::Art::Point (4.0, 0.0));
 186                 points->push_back (Gnome::Art::Point (4.0, 8.0));
 187                 points->push_back (Gnome::Art::Point (8.0, 8.0));
 188                 points->push_back (Gnome::Art::Point (8.0, 11.0));
 189                 points->push_back (Gnome::Art::Point (0.0, 11.0));
 190                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 191
 192                 shift = 0;
 193                 label_offset = 11.0;
 194                 break;
 195
 196         case LoopEnd:
 197                 points = new Gnome::Canvas::Points ();
 198                 points->push_back (Gnome::Art::Point (8.0,  0.0));
 199                 points->push_back (Gnome::Art::Point (8.0, 11.0));
 200                 points->push_back (Gnome::Art::Point (0.0, 11.0));
 201                 points->push_back (Gnome::Art::Point (0.0, 8.0));
 202                 points->push_back (Gnome::Art::Point (4.0, 8.0));
 203                 points->push_back (Gnome::Art::Point (4.0, 0.0));
 204                 points->push_back (Gnome::Art::Point (8.0, 0.0));
 205
 206                 shift = 8;
 207                 label_offset = 11.0;
 208                 break;
 209
 210         case  PunchIn:
 211                 points = new Gnome::Canvas::Points ();
 212                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 213                 points->push_back (Gnome::Art::Point (8.0, 0.0));
 214                 points->push_back (Gnome::Art::Point (4.0, 4.0));
 215                 points->push_back (Gnome::Art::Point (4.0, 11.0));
 216                 points->push_back (Gnome::Art::Point (0.0, 11.0));
 217                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 218
 219                 shift = 0;
 220                 label_offset = 10.0;
 221                 break;
 222
 223         case  PunchOut:
 224                 points = new Gnome::Canvas::Points ();
 225                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 226                 points->push_back (Gnome::Art::Point (8.0, 0.0));
 227                 points->push_back (Gnome::Art::Point (8.0, 11.0));
 228                 points->push_back (Gnome::Art::Point (4.0, 11.0));
 229                 points->push_back (Gnome::Art::Point (4.0, 4.0));
 230                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 231
 232                 shift = 8;
 233                 label_offset = 11.0;
 234                 break;
 235
 236         }
 237
 238         frame_position = frame;
 239         unit_position = editor.frame_to_unit (frame);
 240
 241         /* adjust to properly locate the tip */
 242
 243         unit_position -= shift;
 244
 245         group = &parent;
 246         group->set_property ("x", unit_position);
 247         group->set_property ("y", 1.0);
 248         // cerr << "set mark al points, nc = " << points->num_points << endl;
 249         mark = new Gnome::Canvas::Polygon (*group);
 250         mark->set_property ("points", points);
 251         mark->set_property ("fill_color_rgba", rgba);
 252         mark->set_property ("outline_color", Gdk::Color ("black"));
 253
 254         Pango::FontDescription font = get_font_for_style (N_("MarkerText"));
 255
 256         text = new Gnome::Canvas::Text (*group);
 257         text->set_property ("text", annotation.c_str());
 258         text->set_property ("x", label_offset);
 259         text->set_property ("y", 0.0);
 260         text->set_property ("fontdesc", font);
 261         text->set_property ("anchor", Gtk::ANCHOR_NW);
 262         text->set_property ("fill_color", Gdk::Color ("black"));
 263
 264         group->set_data ("marker", this);
 265         gtk_signal_connect (GTK_OBJECT(group), "event", (GtkSignalFunc) callback, &editor);
 266
 267         editor.ZoomChanged.connect (mem_fun(*this, &Marker::reposition));
 268 }
 269
 270 Marker::~Marker ()
 271 {
 272         /* destroying the group destroys its contents */
 273         gtk_object_destroy (GTK_OBJECT(group));
 274         gnome_canvas_points_unref (points->gobj());
 275 }
 276
 277 void
 278 Marker::set_name (const string& name)
 279 {
 280         text->set_property ("text", name.c_str());
 281 }
 282
 283 void
 284 Marker::set_position (jack_nframes_t frame)
 285 {
 286         double new_unit_position = editor.frame_to_unit (frame);
 287         new_unit_position -= shift;
 288         group->move (new_unit_position - unit_position, 0.0);
 289         frame_position = frame;
 290         unit_position = new_unit_position;
 291 }
 292
 293 void
 294 Marker::reposition ()
 295 {
 296         set_position (frame_position);
 297 }
 298
 299 void
 300 Marker::show ()
 301 {
 302         group->show();
 303 }
 304
 305 void
 306 Marker::hide ()
 307 {
 308         group->hide();
 309 }
 310
 311 void
 312 Marker::set_color_rgba (uint32_t color)
 313 {
 314         mark->set_property ("fill_color_rgba", color);
 315 }
 316
 317 /***********************************************************************/
 318
 319 TempoMarker::TempoMarker (PublicEditor& editor, Gnome::Canvas::Group& parent, guint32 rgba, const string& text,
 320                           ARDOUR::TempoSection& temp,
 321                           gint (*callback)(Gnome::Canvas::Item *, GdkEvent *, gpointer))
 322         : Marker (editor, parent, rgba, text, Tempo, callback, 0),
 323           _tempo (temp)
 324 {
 325         set_position (_tempo.frame());
 326         group->set_data ("tempo_marker", this);
 327 }
 328
 329 TempoMarker::~TempoMarker ()
 330 {
 331 }
 332
 333 /***********************************************************************/
 334
 335 MeterMarker::MeterMarker (PublicEditor& editor, Gnome::Canvas::Group& parent, guint32 rgba, const string& text,
 336                           ARDOUR::MeterSection& m,
 337                           gint (*callback)(Gnome::Canvas::Item *, GdkEvent *, gpointer))
 338         : Marker (editor, parent, rgba, text, Meter, callback, 0),
 339           _meter (m)
 340 {
 341         set_position (_meter.frame());
 342         gtk_object_set_data (GTK_OBJECT(group), "meter_marker", this);
 343 }
 344
 345 MeterMarker::~MeterMarker ()
 346 {
 347 }