1 /*
2 * Copyright (C) 2005-2019 Paul Davis <paul@linuxaudiosystems.com>
3 * Copyright (C) 2005 Karsten Wiese <fzuuzf@googlemail.com>
4 * Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
5 * Copyright (C) 2007-2012 Carl Hetherington <carl@carlh.net>
6 * Copyright (C) 2007-2015 David Robillard <d@drobilla.net>
7 * Copyright (C) 2007 Doug McLain <doug@nostar.net>
8 * Copyright (C) 2013-2019 Robin Gareus <robin@gareus.org>
9 * Copyright (C) 2014-2016 Nick Mainsbridge <mainsbridge@gmail.com>
10 * Copyright (C) 2014 Ben Loftis <ben@harrisonconsoles.com>
11 * Copyright (C) 2015 Tim Mayberry <mojofunk@gmail.com>
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License along
24 * with this program; if not, write to the Free Software Foundation, Inc.,
25 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 */
27
28 #include <utility>
29
30 #include "pbd/error.h"
31
32 #include "ardour/types.h"
33 #include "ardour/ardour.h"
34
35 #include "gtkmm2ext/utils.h"
36 #include "gtkmm2ext/gui_thread.h"
37
38 #include "canvas/container.h"
39 #include "canvas/rectangle.h"
40 #include "canvas/debug.h"
41 #include "canvas/text.h"
42 #include "gtkmm2ext/colors.h"
43
44 #include "ardour/profile.h"
45
46 #include "public_editor.h"
47 #include "time_axis_view_item.h"
48 #include "time_axis_view.h"
49 #include "ui_config.h"
50 #include "utils.h"
51 #include "rgb_macros.h"
52
53 #include "pbd/i18n.h"
54
55 using namespace std;
56 using namespace Editing;
57 using namespace Glib;
58 using namespace PBD;
59 using namespace ARDOUR;
60 using namespace ARDOUR_UI_UTILS;
61 using namespace Gtkmm2ext;
62
63 Pango::FontDescription TimeAxisViewItem::NAME_FONT;
64 const double TimeAxisViewItem::NAME_X_OFFSET = 15.0;
65 const double TimeAxisViewItem::GRAB_HANDLE_TOP = 0.0;
66 const double TimeAxisViewItem::GRAB_HANDLE_WIDTH = 10.0;
67
68 int TimeAxisViewItem::NAME_HEIGHT;
69 double TimeAxisViewItem::NAME_Y_OFFSET;
70 double TimeAxisViewItem::NAME_HIGHLIGHT_SIZE;
71 double TimeAxisViewItem::NAME_HIGHLIGHT_THRESH;
72
73 void
set_constant_heights()74 TimeAxisViewItem::set_constant_heights ()
75 {
76 NAME_FONT = Pango::FontDescription (UIConfiguration::instance().get_SmallFont());
77
78 Gtk::Window win;
79 Gtk::Label foo;
80 win.add (foo);
81
82 Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout (X_("Hg")); /* ascender + descender */
83 int width = 0;
84 int height = 0;
85
86 layout->set_font_description (NAME_FONT);
87 get_pixel_size (layout, width, height);
88
89 layout = foo.create_pango_layout (X_("H")); /* just the ascender */
90
91 NAME_HEIGHT = height;
92
93 /* Config->get_show_name_highlight) == true:
94 Y_OFFSET is measured from bottom of the time axis view item.
95 Config->get_show_name_highlight) == false:
96 Y_OFFSET is measured from the top of the time axis view item.
97 */
98
99 if (UIConfiguration::instance().get_show_name_highlight()) {
100 NAME_Y_OFFSET = height + 1;
101 NAME_HIGHLIGHT_SIZE = height + 2;
102 } else {
103 NAME_Y_OFFSET = 3;
104 NAME_HIGHLIGHT_SIZE = 0;
105 }
106 NAME_HIGHLIGHT_THRESH = NAME_HIGHLIGHT_SIZE * 3;
107 }
108
109 /**
110 * Construct a new TimeAxisViewItem.
111 *
112 * @param it_name the unique name of this item
113 * @param parent the parent canvas group
114 * @param tv the TimeAxisView we are going to be added to
115 * @param spu samples per unit
116 * @param base_color
117 * @param start the start point of this item
118 * @param duration the duration of this item
119 * @param recording true if this is a recording region view
120 * @param automation true if this is an automation region view
121 */
TimeAxisViewItem(const string & it_name,ArdourCanvas::Item & parent,TimeAxisView & tv,double spu,uint32_t base_color,samplepos_t start,samplecnt_t duration,bool recording,bool automation,Visibility vis)122 TimeAxisViewItem::TimeAxisViewItem(
123 const string & it_name, ArdourCanvas::Item& parent, TimeAxisView& tv, double spu, uint32_t base_color,
124 samplepos_t start, samplecnt_t duration, bool recording, bool automation, Visibility vis
125 )
126 : trackview (tv)
127 , sample_position (-1)
128 , item_name (it_name)
129 , selection_frame (0)
130 , _height (1.0)
131 , _recregion (recording)
132 , _automation (automation)
133 , _dragging (false)
134 , _width (0.0)
135 {
136 init (&parent, spu, base_color, start, duration, vis, true, true);
137 }
138
TimeAxisViewItem(const TimeAxisViewItem & other)139 TimeAxisViewItem::TimeAxisViewItem (const TimeAxisViewItem& other)
140 : trackable (other)
141 , Selectable (other)
142 , PBD::ScopedConnectionList()
143 , trackview (other.trackview)
144 , sample_position (-1)
145 , item_name (other.item_name)
146 , selection_frame (0)
147 , _height (1.0)
148 , _recregion (other._recregion)
149 , _automation (other._automation)
150 , _dragging (other._dragging)
151 , _width (0.0)
152 {
153 /* share the other's parent, but still create a new group */
154
155 ArdourCanvas::Item* parent = other.group->parent();
156
157 _selected = other._selected;
158
159 init (parent, other.samples_per_pixel, other.fill_color, other.sample_position,
160 other.item_duration, other.visibility, other.wide_enough_for_name, other.high_enough_for_name);
161 }
162
163 void
init(ArdourCanvas::Item * parent,double fpp,uint32_t base_color,samplepos_t start,samplepos_t duration,Visibility vis,bool wide,bool high)164 TimeAxisViewItem::init (ArdourCanvas::Item* parent, double fpp, uint32_t base_color,
165 samplepos_t start, samplepos_t duration, Visibility vis,
166 bool wide, bool high)
167 {
168 group = new ArdourCanvas::Container (parent);
169 CANVAS_DEBUG_NAME (group, string_compose ("TAVI group for %1", get_item_name()));
170
171 fill_color = base_color;
172 fill_color_name = "time axis view item base";
173 samples_per_pixel = fpp;
174 sample_position = start;
175 item_duration = duration;
176 name_connected = false;
177 position_locked = false;
178 max_item_duration = Temporal::max_samplepos;
179 min_item_duration = 0;
180 visibility = vis;
181 _sensitive = true;
182 name_text_width = 0;
183 last_item_width = 0;
184 wide_enough_for_name = wide;
185 high_enough_for_name = high;
186
187 if (duration == 0) {
188 warning << "Time Axis Item Duration == 0" << endl;
189 }
190
191 if (visibility & ShowFrame) {
192 frame = new ArdourCanvas::Rectangle (group,
193 ArdourCanvas::Rect (0.0, 0.0,
194 trackview.editor().sample_to_pixel(duration),
195 trackview.current_height()));
196
197 frame->set_outline_what (ArdourCanvas::Rectangle::What (ArdourCanvas::Rectangle::LEFT|ArdourCanvas::Rectangle::RIGHT));
198 frame->show ();
199
200 CANVAS_DEBUG_NAME (frame, string_compose ("frame for %1", get_item_name()));
201
202 if (_recregion) {
203 frame->set_outline_color (UIConfiguration::instance().color ("recording rect"));
204 } else {
205 frame->set_outline_color (UIConfiguration::instance().color ("time axis frame"));
206 }
207 }
208
209 if (UIConfiguration::instance().get_show_name_highlight() && (visibility & ShowNameHighlight)) {
210
211 /* rectangle size will be set in ::manage_name_highlight() */
212 name_highlight = new ArdourCanvas::Rectangle (group);
213 CANVAS_DEBUG_NAME (name_highlight, string_compose ("name highlight for %1", get_item_name()));
214 name_highlight->set_data ("timeaxisviewitem", this);
215 name_highlight->set_outline_what (ArdourCanvas::Rectangle::TOP);
216 name_highlight->set_outline_color (RGBA_TO_UINT (0,0,0,255)); // this should use a theme color
217
218 } else {
219 name_highlight = 0;
220 }
221
222 if (visibility & ShowNameText) {
223 name_text = new ArdourCanvas::Text (group);
224 CANVAS_DEBUG_NAME (name_text, string_compose ("name text for %1", get_item_name()));
225 if (UIConfiguration::instance().get_show_name_highlight()) {
226 name_text->set_position (ArdourCanvas::Duple (NAME_X_OFFSET, trackview.current_height() - NAME_Y_OFFSET));
227 } else {
228 name_text->set_position (ArdourCanvas::Duple (NAME_X_OFFSET, NAME_Y_OFFSET));
229 }
230 name_text->set_font_description (NAME_FONT);
231 name_text->set_ignore_events (true);
232 } else {
233 name_text = 0;
234 }
235
236 /* create our grab handles used for trimming/duration etc */
237 if (!_recregion && !_automation) {
238 double top = TimeAxisViewItem::GRAB_HANDLE_TOP;
239 double width = TimeAxisViewItem::GRAB_HANDLE_WIDTH;
240
241 frame_handle_start = new ArdourCanvas::Rectangle (group, ArdourCanvas::Rect (0.0, top, width, trackview.current_height()));
242 CANVAS_DEBUG_NAME (frame_handle_start, "TAVI frame handle start");
243 frame_handle_start->set_outline (false);
244 frame_handle_start->set_fill (false);
245 frame_handle_start->Event.connect (sigc::bind (sigc::mem_fun (*this, &TimeAxisViewItem::frame_handle_crossing), frame_handle_start));
246
247 frame_handle_end = new ArdourCanvas::Rectangle (group, ArdourCanvas::Rect (0.0, top, width, trackview.current_height()));
248 CANVAS_DEBUG_NAME (frame_handle_end, "TAVI frame handle end");
249 frame_handle_end->set_outline (false);
250 frame_handle_end->set_fill (false);
251 frame_handle_end->Event.connect (sigc::bind (sigc::mem_fun (*this, &TimeAxisViewItem::frame_handle_crossing), frame_handle_end));
252 } else {
253 frame_handle_start = frame_handle_end = 0;
254 }
255
256 //set_color (base_color);
257
258 //set_duration (item_duration, this);
259 //set_position (start, this);
260
261 group->Event.connect (sigc::mem_fun (*this, &TimeAxisViewItem::canvas_group_event));
262 //Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&TimeAxisViewItem::parameter_changed, this, _1), gui_context ());
263 UIConfiguration::instance().ParameterChanged.connect (sigc::mem_fun (*this, &TimeAxisViewItem::parameter_changed));
264 }
265
~TimeAxisViewItem()266 TimeAxisViewItem::~TimeAxisViewItem()
267 {
268 delete group;
269 }
270
271 bool
canvas_group_event(GdkEvent *)272 TimeAxisViewItem::canvas_group_event (GdkEvent* /*ev*/)
273 {
274 return false;
275 }
276
277 /**
278 * Set the position of this item on the timeline.
279 *
280 * @param pos the new position
281 * @param src the identity of the object that initiated the change
282 * @return true on success
283 */
284
285 bool
set_position(samplepos_t pos,void * src,double * delta)286 TimeAxisViewItem::set_position(samplepos_t pos, void* src, double* delta)
287 {
288 if (position_locked) {
289 return false;
290 }
291
292 sample_position = pos;
293
294 double new_unit_pos = trackview.editor().sample_to_pixel (pos);
295
296 if (delta) {
297 (*delta) = new_unit_pos - group->position().x;
298 if (*delta == 0.0) {
299 return true;
300 }
301 } else {
302 if (new_unit_pos == group->position().x) {
303 return true;
304 }
305 }
306
307 group->set_x_position (new_unit_pos);
308 PositionChanged (sample_position, src); /* EMIT_SIGNAL */
309
310 return true;
311 }
312
313 /** @return position of this item on the timeline */
314 samplepos_t
get_position() const315 TimeAxisViewItem::get_position() const
316 {
317 return sample_position;
318 }
319
320 /**
321 * Set the duration of this item.
322 *
323 * @param dur the new duration of this item
324 * @param src the identity of the object that initiated the change
325 * @return true on success
326 */
327
328 bool
set_duration(samplecnt_t dur,void * src)329 TimeAxisViewItem::set_duration (samplecnt_t dur, void* src)
330 {
331 if ((dur > max_item_duration) || (dur < min_item_duration)) {
332 warning << string_compose (
333 P_("new duration %1 frame is out of bounds for %2", "new duration of %1 samples is out of bounds for %2", dur),
334 get_item_name(), dur)
335 << endmsg;
336 return false;
337 }
338
339 if (dur == 0) {
340 group->hide();
341 }
342
343 item_duration = dur;
344
345 double end_pixel = trackview.editor().sample_to_pixel (sample_position + dur);
346 double first_pixel = trackview.editor().sample_to_pixel (sample_position);
347
348 reset_width_dependent_items (end_pixel - first_pixel);
349
350 DurationChanged (dur, src); /* EMIT_SIGNAL */
351 return true;
352 }
353
354 /** @return duration of this item */
355 samplepos_t
get_duration() const356 TimeAxisViewItem::get_duration() const
357 {
358 return item_duration;
359 }
360
361 /**
362 * Set the maximum duration that this item can have.
363 *
364 * @param dur the new maximum duration
365 * @param src the identity of the object that initiated the change
366 */
367 void
set_max_duration(samplecnt_t dur,void * src)368 TimeAxisViewItem::set_max_duration(samplecnt_t dur, void* src)
369 {
370 max_item_duration = dur;
371 MaxDurationChanged(max_item_duration, src); /* EMIT_SIGNAL */
372 }
373
374 /** @return the maximum duration that this item may have */
375 samplecnt_t
get_max_duration() const376 TimeAxisViewItem::get_max_duration() const
377 {
378 return max_item_duration;
379 }
380
381 /**
382 * Set the minimum duration that this item may have.
383 *
384 * @param the minimum duration that this item may be set to
385 * @param src the identity of the object that initiated the change
386 */
387 void
set_min_duration(samplecnt_t dur,void * src)388 TimeAxisViewItem::set_min_duration(samplecnt_t dur, void* src)
389 {
390 min_item_duration = dur;
391 MinDurationChanged(max_item_duration, src); /* EMIT_SIGNAL */
392 }
393
394 /** @return the minimum duration that this item mey have */
395 samplecnt_t
get_min_duration() const396 TimeAxisViewItem::get_min_duration() const
397 {
398 return min_item_duration;
399 }
400
401 /**
402 * Set whether this item is locked to its current position.
403 * Locked items cannot be moved until the item is unlocked again.
404 *
405 * @param yn true to lock this item to its current position
406 * @param src the identity of the object that initiated the change
407 */
408 void
set_position_locked(bool yn,void * src)409 TimeAxisViewItem::set_position_locked(bool yn, void* src)
410 {
411 position_locked = yn;
412 set_trim_handle_colors();
413 PositionLockChanged (position_locked, src); /* EMIT_SIGNAL */
414 }
415
416 /** @return true if this item is locked to its current position */
417 bool
get_position_locked() const418 TimeAxisViewItem::get_position_locked() const
419 {
420 return position_locked;
421 }
422
423 /**
424 * Set whether the maximum duration constraint is active.
425 *
426 * @param active set true to enforce the max duration constraint
427 * @param src the identity of the object that initiated the change
428 */
429 void
set_max_duration_active(bool active,void *)430 TimeAxisViewItem::set_max_duration_active (bool active, void* /*src*/)
431 {
432 max_duration_active = active;
433 }
434
435 /** @return true if the maximum duration constraint is active */
436 bool
get_max_duration_active() const437 TimeAxisViewItem::get_max_duration_active() const
438 {
439 return max_duration_active;
440 }
441
442 /**
443 * Set whether the minimum duration constraint is active.
444 *
445 * @param active set true to enforce the min duration constraint
446 * @param src the identity of the object that initiated the change
447 */
448
449 void
set_min_duration_active(bool active,void *)450 TimeAxisViewItem::set_min_duration_active (bool active, void* /*src*/)
451 {
452 min_duration_active = active;
453 }
454
455 /** @return true if the maximum duration constraint is active */
456 bool
get_min_duration_active() const457 TimeAxisViewItem::get_min_duration_active() const
458 {
459 return min_duration_active;
460 }
461
462 /**
463 * Set the name of this item.
464 *
465 * @param new_name the new name of this item
466 * @param src the identity of the object that initiated the change
467 */
468
469 void
set_item_name(std::string new_name,void * src)470 TimeAxisViewItem::set_item_name(std::string new_name, void* src)
471 {
472 if (new_name != item_name) {
473 std::string temp_name = item_name;
474 item_name = new_name;
475 NameChanged (item_name, temp_name, src); /* EMIT_SIGNAL */
476 }
477 }
478
479 /** @return the name of this item */
480 std::string
get_item_name() const481 TimeAxisViewItem::get_item_name() const
482 {
483 return item_name;
484 }
485
486 /**
487 * Set selection status.
488 *
489 * @param yn true if this item is currently selected
490 */
491 void
set_selected(bool yn)492 TimeAxisViewItem::set_selected(bool yn)
493 {
494 if (_selected == yn) {
495 return;
496 }
497
498 Selectable::set_selected (yn);
499 set_frame_color ();
500 set_name_text_color ();
501
502 if (_selected && frame) {
503 if (!selection_frame) {
504 selection_frame = new ArdourCanvas::Rectangle (group);
505 selection_frame->set_fill (false);
506 selection_frame->set_outline_color (UIConfiguration::instance().color ("selected time axis frame"));
507 selection_frame->set_ignore_events (true);
508 }
509 selection_frame->set (frame->get().shrink (1.0));
510 selection_frame->show ();
511 } else {
512 if (selection_frame) {
513 selection_frame->hide ();
514 }
515 }
516 }
517
518 /** @return the TimeAxisView that this item is on */
519 TimeAxisView&
get_time_axis_view() const520 TimeAxisViewItem::get_time_axis_view () const
521 {
522 return trackview;
523 }
524
525 /**
526 * Set the displayed item text.
527 * This item is the visual text name displayed on the canvas item, this can be different to the name of the item.
528 *
529 * @param new_name the new name text to display
530 */
531
532 void
set_name_text(const string & new_name)533 TimeAxisViewItem::set_name_text(const string& new_name)
534 {
535 if (!name_text) {
536 return;
537 }
538
539 name_text_width = pixel_width (new_name, NAME_FONT) + 2;
540 name_text->set (new_name);
541 manage_name_text ();
542 manage_name_highlight ();
543 }
544
545 /**
546 * Set the height of this item.
547 *
548 * @param h new height
549 */
550 void
set_height(double height)551 TimeAxisViewItem::set_height (double height)
552 {
553 _height = height;
554
555 manage_name_highlight ();
556
557 if (visibility & ShowNameText) {
558 if (UIConfiguration::instance().get_show_name_highlight()) {
559 name_text->set_y_position (height - NAME_Y_OFFSET);
560 } else {
561 name_text->set_y_position (NAME_Y_OFFSET);
562 }
563 }
564
565 if (frame) {
566
567 frame->set_y0 (0.0);
568 frame->set_y1 (height);
569
570 if (frame_handle_start) {
571 frame_handle_start->set_y1 (height);
572 frame_handle_end->set_y1 (height);
573 }
574
575 if (selection_frame) {
576 selection_frame->set (frame->get().shrink (1.0));
577 }
578 }
579 }
580
581 void
manage_name_highlight()582 TimeAxisViewItem::manage_name_highlight ()
583 {
584 if (!name_highlight) {
585 return;
586 }
587
588 if (_height < NAME_HIGHLIGHT_THRESH) {
589 high_enough_for_name = false;
590 } else {
591 high_enough_for_name = true;
592 }
593
594 if (_width < 2.0) {
595 wide_enough_for_name = false;
596 } else {
597 wide_enough_for_name = true;
598 }
599
600 if (name_highlight && wide_enough_for_name && high_enough_for_name) {
601
602 name_highlight->show();
603 // name_highlight->set_x_position (1.0);
604 name_highlight->set (ArdourCanvas::Rect (0.0, (double) _height - NAME_HIGHLIGHT_SIZE, _width - 2.0, _height));
605
606 } else {
607 name_highlight->hide();
608 }
609
610 manage_name_text ();
611 }
612
613 void
set_color(uint32_t base_color)614 TimeAxisViewItem::set_color (uint32_t base_color)
615 {
616 fill_color = base_color;
617 set_colors ();
618 }
619
620 ArdourCanvas::Item*
get_canvas_frame()621 TimeAxisViewItem::get_canvas_frame()
622 {
623 return frame;
624 }
625
626 ArdourCanvas::Item*
get_canvas_group()627 TimeAxisViewItem::get_canvas_group()
628 {
629 return group;
630 }
631
632 ArdourCanvas::Item*
get_name_highlight()633 TimeAxisViewItem::get_name_highlight()
634 {
635 return name_highlight;
636 }
637
638 /**
639 * Convenience method to set the various canvas item colors
640 */
641 void
set_colors()642 TimeAxisViewItem::set_colors()
643 {
644 set_frame_color ();
645
646 if (name_highlight) {
647 name_highlight->set_fill_color (fill_color);
648 }
649
650 set_name_text_color ();
651 set_trim_handle_colors();
652 }
653
654 void
set_name_text_color()655 TimeAxisViewItem::set_name_text_color ()
656 {
657 if (!name_text) {
658 return;
659 }
660
661
662 uint32_t f;
663
664 if (UIConfiguration::instance().get_show_name_highlight()) {
665 /* name text will always be on top of name highlight, which
666 will always use our fill color.
667 */
668 f = fill_color;
669 } else {
670 /* name text will be on top of the item, whose color
671 may vary depending on various conditions.
672 */
673 f = get_fill_color ();
674 }
675
676 name_text->set_color (contrasting_text_color (f));
677 }
678
679 Gtkmm2ext::Color
get_fill_color() const680 TimeAxisViewItem::get_fill_color () const
681 {
682 const std::string mod_name = (_dragging ? "dragging region" : fill_color_name);
683
684 if (_selected) {
685 return UIConfiguration::instance().color ("selected region base");
686 } else if (_recregion) {
687 return UIConfiguration::instance().color ("recording rect");
688 } else if ((!UIConfiguration::instance().get_show_name_highlight() || high_enough_for_name) &&
689 !UIConfiguration::instance().get_color_regions_using_track_color()) {
690 return UIConfiguration::instance().color_mod (fill_color_name, mod_name);
691 }
692 return UIConfiguration::instance().color_mod (fill_color, mod_name);
693 }
694
695 /**
696 * Sets the frame color depending on whether this item is selected
697 */
698 void
set_frame_color()699 TimeAxisViewItem::set_frame_color()
700 {
701 if (!frame) {
702 return;
703 }
704
705 frame->set_fill_color (get_fill_color());
706 set_frame_gradient ();
707
708 if (!_recregion) {
709 frame->set_outline_color (UIConfiguration::instance().color ("time axis frame"));
710 }
711 }
712
713 void
set_frame_gradient()714 TimeAxisViewItem::set_frame_gradient ()
715 {
716 if (UIConfiguration::instance().get_timeline_item_gradient_depth() == 0.0) {
717 frame->set_gradient (ArdourCanvas::Fill::StopList (), 0);
718 return;
719 }
720
721 ArdourCanvas::Fill::StopList stops;
722 double r, g, b, a;
723 double h, s, v;
724 Color f (get_fill_color());
725
726 /* need to get alpha value */
727 color_to_rgba (f, r, g, b, a);
728
729 stops.push_back (std::make_pair (0.0, f));
730
731 /* now a darker version */
732
733 color_to_hsv (f, h, s, v);
734
735 v = min (1.0, v * (1.0 - UIConfiguration::instance().get_timeline_item_gradient_depth()));
736
737 Color darker = hsva_to_color (h, s, v, a);
738 stops.push_back (std::make_pair (1.0, darker));
739
740 frame->set_gradient (stops, true);
741 }
742
743 /**
744 * Set the colors of the start and end trim handle depending on object state
745 */
746 void
set_trim_handle_colors()747 TimeAxisViewItem::set_trim_handle_colors()
748 {
749 #if 1
750 /* Leave them transparent for now */
751 if (frame_handle_start) {
752 frame_handle_start->set_fill_color (0x00000000);
753 frame_handle_end->set_fill_color (0x00000000);
754 }
755 #else
756 if (frame_handle_start) {
757 if (position_locked) {
758 frame_handle_start->set_fill_color (UIConfiguration::instance().get_TrimHandleLocked());
759 frame_handle_end->set_fill_color (UIConfiguration::instance().get_TrimHandleLocked());
760 } else {
761 frame_handle_start->set_fill_color (UIConfiguration::instance().get_TrimHandle());
762 frame_handle_end->set_fill_color (UIConfiguration::instance().get_TrimHandle());
763 }
764 }
765 #endif
766 }
767
768 bool
frame_handle_crossing(GdkEvent * ev,ArdourCanvas::Rectangle * item)769 TimeAxisViewItem::frame_handle_crossing (GdkEvent* ev, ArdourCanvas::Rectangle* item)
770 {
771 switch (ev->type) {
772 case GDK_LEAVE_NOTIFY:
773 /* always hide the handle whenever we leave, no matter what mode */
774 item->set_fill (false);
775 break;
776 case GDK_ENTER_NOTIFY:
777 if (trackview.editor().effective_mouse_mode() == Editing::MouseObject) {
778 /* Never set this to be visible in other modes. Note, however,
779 that we do need to undo visibility (LEAVE_NOTIFY case above) no
780 matter what the mode is. */
781 item->set_fill (true);
782 }
783 break;
784 default:
785 break;
786 }
787 return false;
788 }
789
790 /** @return the samples per pixel */
791 double
get_samples_per_pixel() const792 TimeAxisViewItem::get_samples_per_pixel () const
793 {
794 return samples_per_pixel;
795 }
796
797 /** Set the samples per pixel of this item.
798 * This item is used to determine the relative visual size and position of this item
799 * based upon its duration and start value.
800 *
801 * @param fpp the new samples per pixel
802 */
803 void
set_samples_per_pixel(double fpp)804 TimeAxisViewItem::set_samples_per_pixel (double fpp)
805 {
806 samples_per_pixel = fpp;
807 set_position (this->get_position(), this);
808
809 double end_pixel = trackview.editor().sample_to_pixel (sample_position + get_duration());
810 double first_pixel = trackview.editor().sample_to_pixel (sample_position);
811
812 reset_width_dependent_items (end_pixel - first_pixel);
813 }
814
815 void
reset_width_dependent_items(double pixel_width)816 TimeAxisViewItem::reset_width_dependent_items (double pixel_width)
817 {
818 _width = pixel_width;
819
820 manage_name_highlight ();
821 manage_name_text ();
822
823 if (pixel_width < 2.0) {
824
825 if (frame) {
826 frame->set_outline (false);
827 frame->set_x1 (std::max(1.0, pixel_width));
828 }
829
830 if (frame_handle_start) {
831 frame_handle_start->hide();
832 frame_handle_end->hide();
833 }
834
835 } else {
836 if (frame) {
837 frame->set_outline (true);
838 /* Note: x0 is always zero - the position is defined by
839 * the position of the group, not the frame.
840 */
841 frame->set_x1 (pixel_width);
842
843 if (selection_frame) {
844 selection_frame->set (frame->get().shrink (1.0));
845 }
846 }
847
848 if (frame_handle_start) {
849 if (pixel_width < (3 * TimeAxisViewItem::GRAB_HANDLE_WIDTH)) {
850 /*
851 * there's less than GRAB_HANDLE_WIDTH of the region between
852 * the right-hand end of frame_handle_start and the left-hand
853 * end of frame_handle_end, so disable the handles
854 */
855
856 frame_handle_start->hide();
857 frame_handle_end->hide();
858 } else {
859 frame_handle_start->show();
860 frame_handle_end->set_x0 (pixel_width - (TimeAxisViewItem::GRAB_HANDLE_WIDTH));
861 frame_handle_end->set_x1 (pixel_width);
862 frame_handle_end->show();
863
864 frame_handle_start->raise_to_top ();
865 frame_handle_end->raise_to_top ();
866 }
867 }
868 }
869 }
870
871 void
manage_name_text()872 TimeAxisViewItem::manage_name_text ()
873 {
874 int visible_name_width;
875
876 if (!name_text) {
877 return;
878 }
879
880 if (!(visibility & ShowNameText) || (!wide_enough_for_name || !high_enough_for_name)) {
881 name_text->hide ();
882 return;
883 }
884
885 if (name_text->text().empty()) {
886 name_text->hide ();
887 }
888
889 visible_name_width = name_text_width;
890
891 if (visible_name_width > _width - NAME_X_OFFSET) {
892 visible_name_width = _width - NAME_X_OFFSET;
893 }
894
895 if (visible_name_width < 1) {
896 name_text->hide ();
897 } else {
898 name_text->clamp_width (visible_name_width);
899 name_text->show ();
900 }
901 }
902
903 /**
904 * Callback used to remove this time axis item during the gtk idle loop.
905 * This is used to avoid deleting the obejct while inside the remove_this_item
906 * method.
907 *
908 * @param item the TimeAxisViewItem to remove.
909 * @param src the identity of the object that initiated the change.
910 */
911 gint
idle_remove_this_item(TimeAxisViewItem * item,void * src)912 TimeAxisViewItem::idle_remove_this_item(TimeAxisViewItem* item, void* src)
913 {
914 item->ItemRemoved (item->get_item_name(), src); /* EMIT_SIGNAL */
915 delete item;
916 item = 0;
917 return false;
918 }
919
920 void
set_y(double y)921 TimeAxisViewItem::set_y (double y)
922 {
923 group->set_y_position (y);
924 }
925
926 void
parameter_changed(string p)927 TimeAxisViewItem::parameter_changed (string p)
928 {
929 if (p == "color-regions-using-track-color") {
930 set_colors ();
931 } else if (p == "timeline-item-gradient-depth") {
932 set_frame_gradient ();
933 }
934 }
935
936 void
drag_start()937 TimeAxisViewItem::drag_start ()
938 {
939 _dragging = true;
940 set_frame_color ();
941 }
942
943 void
drag_end()944 TimeAxisViewItem::drag_end ()
945 {
946 _dragging = false;
947 set_frame_color ();
948 }
949