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, GtkCanvasGroup *parent, guint32 rgba, const string& annotation,
  31                 Type type, gint (*callback)(GtkCanvasItem *, 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 = gtk_canvas_points_new (6);
 126
 127                 points->coords[0] = 0.0;
 128                 points->coords[1] = 0.0;
 129
 130                 points->coords[2] = 6.0;
 131                 points->coords[3] = 0.0;
 132
 133                 points->coords[4] = 6.0;
 134                 points->coords[5] = 5.0;
 135
 136                 points->coords[6] = 3.0;
 137                 points->coords[7] = 10.0;
 138
 139                 points->coords[8] = 0.0;
 140                 points->coords[9] = 5.0;
 141
 142                 points->coords[10] = 0.0;
 143                 points->coords[11] = 0.0;
 144
 145                 shift = 3;
 146                 label_offset = 8.0;
 147                 break;
 148
 149         case Tempo:
 150         case Meter:
 151                 points = gtk_canvas_points_new (6);
 152
 153                 points->coords[0] = 3.0;
 154                 points->coords[1] = 0.0;
 155
 156                 points->coords[2] = 6.0;
 157                 points->coords[3] = 5.0;
 158
 159                 points->coords[4] = 6.0;
 160                 points->coords[5] = 10.0;
 161
 162                 points->coords[6] = 0.0;
 163                 points->coords[7] = 10.0;
 164
 165                 points->coords[8] = 0.0;
 166                 points->coords[9] = 5.0;
 167
 168                 points->coords[10] = 3.0;
 169                 points->coords[11] = 0.0;
 170
 171                 shift = 3;
 172                 label_offset = 8.0;
 173                 break;
 174
 175         case Start:
 176                 points = gtk_canvas_points_new (6);
 177
 178                 points->coords[0] = 0.0;
 179                 points->coords[1] = 0.0;
 180
 181                 points->coords[2] = 5.0;
 182                 points->coords[3] = 0.0;
 183
 184                 points->coords[4] = 10.0;
 185                 points->coords[5] = 5.0;
 186
 187                 points->coords[6] = 5.0;
 188                 points->coords[7] = 10.0;
 189
 190                 points->coords[8] = 0.0;
 191                 points->coords[9] = 10.0;
 192
 193                 points->coords[10] = 0.0;
 194                 points->coords[11] = 0.0;
 195
 196                 shift = 10;
 197                 label_offset = 12.0;
 198                 break;
 199
 200         case End:
 201                 points = gtk_canvas_points_new (6);
 202
 203                 points->coords[0] = 5.0;
 204                 points->coords[1] = 0.0;
 205
 206                 points->coords[2] = 10.0;
 207                 points->coords[3] = 0.0;
 208
 209                 points->coords[4] = 10.0;
 210                 points->coords[5] = 10.0;
 211
 212                 points->coords[6] = 5.0;
 213                 points->coords[7] = 10.0;
 214
 215                 points->coords[8] = 0.0;
 216                 points->coords[9] = 5.0;
 217
 218                 points->coords[10] = 5.0;
 219                 points->coords[11] = 0.0;
 220
 221                 shift = 0;
 222                 label_offset = 12.0;
 223                 break;
 224
 225         case LoopStart:
 226                 points = gtk_canvas_points_new (7);
 227
 228                 points->coords[0] = 0.0;
 229                 points->coords[1] = 0.0;
 230
 231                 points->coords[2] = 4.0;
 232                 points->coords[3] = 0.0;
 233
 234                 points->coords[4] = 4.0;
 235                 points->coords[5] = 8.0;
 236
 237                 points->coords[6] = 8.0;
 238                 points->coords[7] = 8.0;
 239
 240                 points->coords[8] = 8.0;
 241                 points->coords[9] = 11.0;
 242
 243                 points->coords[10] = 0.0;
 244                 points->coords[11] = 11.0;
 245
 246                 points->coords[12] = 0.0;
 247                 points->coords[13] = 0.0;
 248
 249                 shift = 0;
 250                 label_offset = 11.0;
 251                 break;
 252
 253         case LoopEnd:
 254                 points = gtk_canvas_points_new (7);
 255
 256                 points->coords[0] = 8.0;
 257                 points->coords[1] = 0.0;
 258
 259                 points->coords[2] = 8.0;
 260                 points->coords[3] = 11.0;
 261
 262                 points->coords[4] = 0.0;
 263                 points->coords[5] = 11.0;
 264
 265                 points->coords[6] = 0.0;
 266                 points->coords[7] = 8.0;
 267
 268                 points->coords[8] = 4.0;
 269                 points->coords[9] = 8.0;
 270
 271                 points->coords[10] = 4.0;
 272                 points->coords[11] = 0.0;
 273
 274                 points->coords[12] = 8.0;
 275                 points->coords[13] = 0.0;
 276
 277                 shift = 8;
 278                 label_offset = 11.0;
 279                 break;
 280
 281         case  PunchIn:
 282                 points = gtk_canvas_points_new (6);
 283
 284                 points->coords[0] = 0.0;
 285                 points->coords[1] = 0.0;
 286
 287                 points->coords[2] = 8.0;
 288                 points->coords[3] = 0.0;
 289
 290                 points->coords[4] = 4.0;
 291                 points->coords[5] = 4.0;
 292
 293                 points->coords[6] = 4.0;
 294                 points->coords[7] = 11.0;
 295
 296                 points->coords[8] = 0.0;
 297                 points->coords[9] = 11.0;
 298
 299                 points->coords[10] = 0.0;
 300                 points->coords[11] = 0.0;
 301
 302                 shift = 0;
 303                 label_offset = 10.0;
 304                 break;
 305
 306         case  PunchOut:
 307                 points = gtk_canvas_points_new (6);
 308
 309                 points->coords[0] = 0.0;
 310                 points->coords[1] = 0.0;
 311
 312                 points->coords[2] = 8.0;
 313                 points->coords[3] = 0.0;
 314
 315                 points->coords[4] = 8.0;
 316                 points->coords[5] = 11.0;
 317
 318                 points->coords[6] = 4.0;
 319                 points->coords[7] = 11.0;
 320
 321                 points->coords[8] = 4.0;
 322                 points->coords[9] = 4.0;
 323
 324                 points->coords[10] = 0.0;
 325                 points->coords[11] = 0.0;
 326
 327                 shift = 8;
 328                 label_offset = 11.0;
 329                 break;
 330
 331         }
 332
 333         frame_position = frame;
 334         unit_position = editor.frame_to_unit (frame);
 335
 336         /* adjust to properly locate the tip */
 337
 338         unit_position -= shift;
 339
 340         group = gtk_canvas_item_new (parent,
 341                                      gtk_canvas_group_get_type(),
 342                                      "x", unit_position,
 343                                      "y", 1.0,
 344                                      NULL);
 345
 346         // cerr << "set mark al points, nc = " << points->num_points << endl;
 347         mark = gtk_canvas_item_new (GTK_CANVAS_GROUP(group),
 348                                     gtk_canvas_polygon_get_type(),
 349                                     "points", points,
 350                                     "fill_color_rgba", rgba,
 351                                     "outline_color", "black",
 352                                     NULL);
 353
 354         string fontname = get_font_for_style (N_("MarkerText"));
 355
 356         text = gtk_canvas_item_new (GTK_CANVAS_GROUP(group),
 357                                     gtk_canvas_text_get_type (),
 358                                     "text", annotation.c_str(),
 359                                     "x", label_offset,
 360                                     "y", 0.0,
 361                                     "font", fontname.c_str(),
 362                                     "anchor", GTK_ANCHOR_NW,
 363                                     "fill_color", "black",
 364                                     NULL);
 365
 366         gtk_object_set_data (GTK_OBJECT(group), "marker", this);
 367         gtk_signal_connect (GTK_OBJECT(group), "event", (GtkSignalFunc) callback, &editor);
 368
 369         editor.ZoomChanged.connect (slot (*this, &Marker::reposition));
 370 }
 371
 372 Marker::~Marker ()
 373 {
 374         /* destroying the group destroys its contents */
 375         gtk_object_destroy (GTK_OBJECT(group));
 376         gtk_canvas_points_unref (points);
 377 }
 378
 379 void
 380 Marker::set_name (const string& name)
 381 {
 382         gtk_canvas_item_set (text, "text", name.c_str(), NULL);
 383 }
 384
 385 void
 386 Marker::set_position (jack_nframes_t frame)
 387 {
 388         double new_unit_position = editor.frame_to_unit (frame);
 389         new_unit_position -= shift;
 390         gtk_canvas_item_move (group, new_unit_position - unit_position, 0.0);
 391         frame_position = frame;
 392         unit_position = new_unit_position;
 393 }
 394
 395 void
 396 Marker::reposition ()
 397 {
 398         set_position (frame_position);
 399 }
 400
 401 void
 402 Marker::show ()
 403 {
 404         gtk_canvas_item_show (group);
 405 }
 406
 407 void
 408 Marker::hide ()
 409 {
 410         gtk_canvas_item_hide (group);
 411 }
 412
 413 void
 414 Marker::set_color_rgba (uint32_t color)
 415 {
 416         gtk_canvas_item_set (mark, "fill_color_rgba", color, NULL);
 417 }
 418
 419 /***********************************************************************/
 420
 421 TempoMarker::TempoMarker (PublicEditor& editor, GtkCanvasGroup *parent, guint32 rgba, const string& text,
 422                           ARDOUR::TempoSection& temp,
 423                           gint (*callback)(GtkCanvasItem *, GdkEvent *, gpointer))
 424         : Marker (editor, parent, rgba, text, Tempo, callback, 0),
 425           _tempo (temp)
 426 {
 427         set_position (_tempo.frame());
 428         gtk_object_set_data (GTK_OBJECT(group), "tempo_marker", this);
 429 }
 430
 431 TempoMarker::~TempoMarker ()
 432 {
 433 }
 434
 435 /***********************************************************************/
 436
 437 MeterMarker::MeterMarker (PublicEditor& editor, GtkCanvasGroup *parent, guint32 rgba, const string& text,
 438                           ARDOUR::MeterSection& m,
 439                           gint (*callback)(GtkCanvasItem *, GdkEvent *, gpointer))
 440         : Marker (editor, parent, rgba, text, Meter, callback, 0),
 441           _meter (m)
 442 {
 443         set_position (_meter.frame());
 444         gtk_object_set_data (GTK_OBJECT(group), "meter_marker", this);
 445 }
 446
 447 MeterMarker::~MeterMarker ()
 448 {
 449 }