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 */
  19
  20 #include <sigc++/bind.h>
  21 #include "ardour/tempo.h"
  22
  23 #include "ardour_ui.h"
  24 /*
  25  * ardour_ui.h include was moved to the top of the list
  26  * due to a conflicting definition of 'Rect' between
  27  * Apple's MacTypes.h and GTK.
  28  */
  29
  30 #include "marker.h"
  31 #include "public_editor.h"
  32 #include "utils.h"
  33 #include "canvas_impl.h"
  34 #include "simpleline.h"
  35
  36 #include <gtkmm2ext/utils.h>
  37
  38 #include "i18n.h"
  39
  40 using namespace std;
  41 using namespace ARDOUR;
  42
  43 PBD::Signal1<void,Marker*> Marker::CatchDeletion;
  44
  45 Marker::Marker (PublicEditor& ed, ArdourCanvas::Group& parent, guint32 rgba, const string& annotation,
  46                 Type type, nframes_t frame, bool handle_events)
  47
  48         : editor (ed), _parent(&parent), _type(type)
  49 {
  50         double label_offset = 0;
  51
  52         /* Shapes we use:
  53
  54           Mark:
  55
  56            (0,0) -> (6,0)
  57              ^        |
  58              |        V
  59            (0,5)    (6,5)
  60                \    /
  61                (3,10)
  62
  63
  64            TempoMark:
  65            MeterMark:
  66
  67                (3,0)
  68               /      \
  69            (0,5) -> (6,5)
  70              ^        |
  71              |        V
  72            (0,10)<-(6,10)
  73
  74
  75            Start:
  76
  77            0,0\
  78             |  \
  79             |   \ 6,6
  80             |   /
  81             |  /
  82            0,12
  83
  84            End:
  85
  86                /12,0
  87               /     |
  88              /      |
  89            6,6      |
  90              \      |
  91               \     |
  92                \    |
  93                12,12
  94
  95
  96            TransportStart:
  97
  98              0,0
  99               | \
 100               |  \
 101               |   \
 102               |    \
 103               |     \
 104              0,13 --- 13,13
 105
 106            TransportEnd:
 107
 108                     /13,0
 109                    /   |
 110                   /    |
 111                  /     |
 112                 /      |
 113                /       |
 114              0,13 ------ 13,13
 115
 116
 117              PunchIn:
 118
 119              0,0 ------> 13,0
 120               |       /
 121               |      /
 122               |     /
 123               |    /
 124               |   /
 125               |  /
 126              0,13
 127
 128              PunchOut
 129
 130            0,0 -->-13,0
 131             \       |
 132              \      |
 133               \     |
 134                \    |
 135                 \   |
 136                  \  |
 137                  13,13
 138
 139
 140         */
 141
 142         switch (type) {
 143         case Mark:
 144                 points = new ArdourCanvas::Points ();
 145
 146                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 147                 points->push_back (Gnome::Art::Point (6.0, 0.0));
 148                 points->push_back (Gnome::Art::Point (6.0, 5.0));
 149                 points->push_back (Gnome::Art::Point (3.0, 10.0));
 150                 points->push_back (Gnome::Art::Point (0.0, 5.0));
 151                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 152
 153                 shift = 3;
 154                 label_offset = 8.0;
 155                 break;
 156
 157         case Tempo:
 158         case Meter:
 159
 160                 points = new ArdourCanvas::Points ();
 161                 points->push_back (Gnome::Art::Point (3.0, 0.0));
 162                 points->push_back (Gnome::Art::Point (6.0, 5.0));
 163                 points->push_back (Gnome::Art::Point (6.0, 10.0));
 164                 points->push_back (Gnome::Art::Point (0.0, 10.0));
 165                 points->push_back (Gnome::Art::Point (0.0, 5.0));
 166                 points->push_back (Gnome::Art::Point (3.0, 0.0));
 167
 168                 shift = 3;
 169                 label_offset = 8.0;
 170                 break;
 171
 172         case Start:
 173                 points = new ArdourCanvas::Points ();
 174                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 175                 points->push_back (Gnome::Art::Point (6.5, 6.5));
 176                 points->push_back (Gnome::Art::Point (0.0, 13.0));
 177                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 178
 179                 shift = 0;
 180                 label_offset = 13.0;
 181                 break;
 182
 183         case End:
 184                 points = new ArdourCanvas::Points ();
 185                 points->push_back (Gnome::Art::Point (6.5, 6.5));
 186                 points->push_back (Gnome::Art::Point (13.0, 0.0));
 187                 points->push_back (Gnome::Art::Point (13.0, 13.0));
 188                 points->push_back (Gnome::Art::Point (6.5, 6.5));
 189
 190                 shift = 13;
 191                 label_offset = 6.0;
 192                 break;
 193
 194         case LoopStart:
 195                 points = new ArdourCanvas::Points ();
 196                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 197                 points->push_back (Gnome::Art::Point (13.0, 13.0));
 198                 points->push_back (Gnome::Art::Point (0.0, 13.0));
 199                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 200
 201                 shift = 0;
 202                 label_offset = 12.0;
 203                 break;
 204
 205         case LoopEnd:
 206                 points = new ArdourCanvas::Points ();
 207                 points->push_back (Gnome::Art::Point (13.0,  0.0));
 208                 points->push_back (Gnome::Art::Point (13.0, 13.0));
 209                 points->push_back (Gnome::Art::Point (0.0, 13.0));
 210                 points->push_back (Gnome::Art::Point (13.0, 0.0));
 211
 212                 shift = 13;
 213                 label_offset = 0.0;
 214                 break;
 215
 216         case  PunchIn:
 217                 points = new ArdourCanvas::Points ();
 218                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 219                 points->push_back (Gnome::Art::Point (13.0, 0.0));
 220                 points->push_back (Gnome::Art::Point (0.0, 13.0));
 221                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 222
 223                 shift = 0;
 224                 label_offset = 13.0;
 225                 break;
 226
 227         case  PunchOut:
 228                 points = new ArdourCanvas::Points ();
 229                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 230                 points->push_back (Gnome::Art::Point (12.0, 0.0));
 231                 points->push_back (Gnome::Art::Point (12.0, 12.0));
 232                 points->push_back (Gnome::Art::Point (0.0, 0.0));
 233
 234                 shift = 13;
 235                 label_offset = 0.0;
 236                 break;
 237
 238         }
 239
 240         frame_position = frame;
 241         unit_position = editor.frame_to_unit (frame);
 242
 243         /* adjust to properly locate the tip */
 244
 245         unit_position -= shift;
 246
 247         group = new Group (parent, unit_position, 1.0);
 248
 249         mark = new Polygon (*group);
 250         mark->property_points() = *points;
 251         mark->property_fill_color_rgba() = rgba;
 252         mark->property_outline_color_rgba() = rgba;
 253         mark->property_width_pixels() = 1;
 254
 255         /* setup name pixbuf sizes */
 256         name_font = get_font_for_style (N_("MarkerText"));
 257
 258         Gtk::Window win;
 259         Gtk::Label foo;
 260         win.add (foo);
 261
 262         Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout (X_("Hg")); /* ascender + descender */
 263         int width;
 264         int height;
 265
 266         layout->set_font_description (*name_font);
 267         Gtkmm2ext::get_ink_pixel_size (layout, width, height);
 268         name_height = height + 6;
 269
 270         name_pixbuf = new ArdourCanvas::Pixbuf(*group);
 271         name_pixbuf->property_x() = label_offset;
 272
 273         set_name (annotation.c_str());
 274
 275         editor.ZoomChanged.connect (sigc::mem_fun (*this, &Marker::reposition));
 276
 277         mark->set_data ("marker", this);
 278
 279         if (handle_events) {
 280                 group->signal_event().connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_marker_event), mark, this));
 281         }
 282
 283         line = 0;
 284
 285 }
 286
 287
 288 Marker::~Marker ()
 289 {
 290         CatchDeletion (this); /* EMIT SIGNAL */
 291
 292         /* destroying the parent group destroys its contents, namely any polygons etc. that we added */
 293         delete name_pixbuf;
 294         delete mark;
 295         delete points;
 296
 297         delete line;
 298         line = 0;
 299 }
 300
 301 void Marker::reparent(ArdourCanvas::Group & parent)
 302 {
 303         group->reparent(parent);
 304         _parent = &parent;
 305 }
 306
 307
 308 void
 309 Marker::set_line_vpos (double pos, double height)
 310 {
 311         if (line) {
 312                 line->property_y1() = pos;
 313                 line->property_y2() = pos + height;
 314         }
 315 }
 316
 317 void
 318 Marker::add_line (ArdourCanvas::Group* group, double y_origin, double initial_height)
 319 {
 320         if (!line) {
 321
 322                 line = new ArdourCanvas::SimpleLine (*group);
 323                 line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_EditPoint.get();
 324                 line->property_x1() = unit_position + shift;
 325                 line->property_y1() = y_origin;
 326                 line->property_x2() = unit_position + shift;
 327                 line->property_y2() = y_origin + initial_height;
 328
 329                 line->signal_event().connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_marker_event), mark, this));
 330         }
 331
 332         show_line ();
 333 }
 334
 335 void
 336 Marker::show_line ()
 337 {
 338         if (line) {
 339                 line->raise_to_top();
 340                 line->show ();
 341         }
 342 }
 343
 344 void
 345 Marker::hide_line ()
 346 {
 347         if (line) {
 348                 line->hide ();
 349         }
 350 }
 351
 352 ArdourCanvas::Item&
 353 Marker::the_item() const
 354 {
 355         return *mark;
 356 }
 357
 358 void
 359 Marker::set_name (const string& new_name)
 360 {
 361         int name_width = pixel_width (new_name, *name_font) + 2;
 362
 363         name_pixbuf->property_pixbuf() = pixbuf_from_ustring(new_name, name_font, name_width, name_height, Gdk::Color ("#000000"));
 364
 365         if (_type == End || _type == LoopEnd || _type == PunchOut) {
 366                 name_pixbuf->property_x() = - (name_width);
 367         }
 368 }
 369
 370 void
 371 Marker::set_position (nframes64_t frame)
 372 {
 373         double new_unit_position = editor.frame_to_unit (frame);
 374         new_unit_position -= shift;
 375         group->move (new_unit_position - unit_position, 0.0);
 376         frame_position = frame;
 377         unit_position = new_unit_position;
 378
 379         if (line) {
 380                 line->property_x1() = unit_position + shift;
 381                 line->property_x2() = unit_position + shift;
 382         }
 383 }
 384
 385 void
 386 Marker::reposition ()
 387 {
 388         set_position (frame_position);
 389 }
 390
 391 void
 392 Marker::show ()
 393 {
 394         group->show();
 395 }
 396
 397 void
 398 Marker::hide ()
 399 {
 400         group->hide();
 401 }
 402
 403 void
 404 Marker::set_color_rgba (uint32_t color)
 405 {
 406         mark->property_fill_color_rgba() = color;
 407         mark->property_outline_color_rgba() = color;
 408 }
 409
 410 /***********************************************************************/
 411
 412 TempoMarker::TempoMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text,
 413                           ARDOUR::TempoSection& temp)
 414         : Marker (editor, parent, rgba, text, Tempo, 0, false),
 415           _tempo (temp)
 416 {
 417         set_position (_tempo.frame());
 418         group->signal_event().connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_tempo_marker_event), mark, this));
 419 }
 420
 421 TempoMarker::~TempoMarker ()
 422 {
 423 }
 424
 425 /***********************************************************************/
 426
 427 MeterMarker::MeterMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text,
 428                           ARDOUR::MeterSection& m)
 429         : Marker (editor, parent, rgba, text, Meter, 0, false),
 430           _meter (m)
 431 {
 432         set_position (_meter.frame());
 433         group->signal_event().connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_meter_marker_event), mark, this));
 434 }
 435
 436 MeterMarker::~MeterMarker ()
 437 {
 438 }
 439