2 Copyright (C) 2003 Paul Davis
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.
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.
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.
22 #include "pbd/error.h"
23 #include "pbd/stacktrace.h"
25 #include "ardour/types.h"
26 #include "ardour/ardour.h"
28 #include "gtkmm2ext/utils.h"
29 #include "gtkmm2ext/gui_thread.h"
31 #include "canvas/group.h"
32 #include "canvas/rectangle.h"
33 #include "canvas/debug.h"
34 #include "canvas/drag_handle.h"
35 #include "canvas/text.h"
36 #include "canvas/utils.h"
38 #include "ardour/profile.h"
40 #include "ardour_ui.h"
42 * ardour_ui.h was moved up in the include list
43 * due to a conflicting definition of 'Rect' between
44 * Apple's MacTypes.h file and GTK
47 #include "public_editor.h"
48 #include "time_axis_view_item.h"
49 #include "time_axis_view.h"
51 #include "rgb_macros.h"
56 using namespace Editing;
59 using namespace ARDOUR;
60 using namespace Gtkmm2ext;
62 Pango::FontDescription TimeAxisViewItem::NAME_FONT;
63 const double TimeAxisViewItem::NAME_X_OFFSET = 15.0;
64 const double TimeAxisViewItem::GRAB_HANDLE_TOP = 0.0;
65 const double TimeAxisViewItem::GRAB_HANDLE_WIDTH = 10.0;
66 const double TimeAxisViewItem::RIGHT_EDGE_SHIFT = 1.0;
68 int TimeAxisViewItem::NAME_HEIGHT;
69 double TimeAxisViewItem::NAME_Y_OFFSET;
70 double TimeAxisViewItem::NAME_HIGHLIGHT_SIZE;
71 double TimeAxisViewItem::NAME_HIGHLIGHT_THRESH;
74 TimeAxisViewItem::set_constant_heights ()
76 NAME_FONT = get_font_for_style (X_("TimeAxisViewItemName"));
82 Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout (X_("Hg")); /* ascender + descender */
86 layout->set_font_description (NAME_FONT);
87 get_pixel_size (layout, width, height);
89 layout = foo.create_pango_layout (X_("H")); /* just the ascender */
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.
99 if (Config->get_show_name_highlight()) {
100 NAME_Y_OFFSET = height + 1;
101 NAME_HIGHLIGHT_SIZE = height + 2;
104 NAME_HIGHLIGHT_SIZE = 0;
106 NAME_HIGHLIGHT_THRESH = NAME_HIGHLIGHT_SIZE * 3;
110 * Construct a new TimeAxisViewItem.
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
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
122 TimeAxisViewItem::TimeAxisViewItem(
123 const string & it_name, ArdourCanvas::Group& parent, TimeAxisView& tv, double spu, Gdk::Color const & base_color,
124 framepos_t start, framecnt_t duration, bool recording, bool automation, Visibility vis
127 , frame_position (-1)
128 , item_name (it_name)
130 , _recregion (recording)
131 , _automation (automation)
135 init (&parent, spu, base_color, start, duration, vis, true, true);
138 TimeAxisViewItem::TimeAxisViewItem (const TimeAxisViewItem& other)
141 , PBD::ScopedConnectionList()
142 , trackview (other.trackview)
143 , frame_position (-1)
144 , item_name (other.item_name)
146 , _recregion (other._recregion)
147 , _automation (other._automation)
148 , _dragging (other._dragging)
155 UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
156 c.set_rgb_p (r/255.0, g/255.0, b/255.0);
158 /* share the other's parent, but still create a new group */
160 ArdourCanvas::Group* parent = other.group->parent();
162 _selected = other._selected;
164 init (parent, other.samples_per_pixel, c, other.frame_position,
165 other.item_duration, other.visibility, other.wide_enough_for_name, other.high_enough_for_name);
169 TimeAxisViewItem::init (ArdourCanvas::Group* parent, double fpp, Gdk::Color const & base_color,
170 framepos_t start, framepos_t duration, Visibility vis,
171 bool wide, bool high)
173 group = new ArdourCanvas::Group (parent);
174 CANVAS_DEBUG_NAME (group, string_compose ("TAVI group for %1", get_item_name()));
175 group->Event.connect (sigc::mem_fun (*this, &TimeAxisViewItem::canvas_group_event));
177 samples_per_pixel = fpp;
178 frame_position = start;
179 item_duration = duration;
180 name_connected = false;
182 position_locked = false;
183 max_item_duration = ARDOUR::max_framepos;
184 min_item_duration = 0;
185 show_vestigial = true;
190 wide_enough_for_name = wide;
191 high_enough_for_name = high;
195 warning << "Time Axis Item Duration == 0" << endl;
198 vestigial_frame = new ArdourCanvas::Rectangle (group, ArdourCanvas::Rect (0.0, 1.0, 2.0, trackview.current_height()));
199 CANVAS_DEBUG_NAME (vestigial_frame, string_compose ("vestigial frame for %1", get_item_name()));
200 vestigial_frame->hide ();
201 vestigial_frame->set_outline_color (ARDOUR_UI::config()->get_canvasvar_VestigialFrame());
202 vestigial_frame->set_fill_color (ARDOUR_UI::config()->get_canvasvar_VestigialFrame());
204 if (visibility & ShowFrame) {
205 frame = new ArdourCanvas::Rectangle (group,
206 ArdourCanvas::Rect (0.0, 0.0,
207 trackview.editor().sample_to_pixel(duration) + RIGHT_EDGE_SHIFT,
208 trackview.current_height() - 1.0));
210 CANVAS_DEBUG_NAME (frame, string_compose ("frame for %1", get_item_name()));
212 if (Config->get_show_name_highlight()) {
213 frame->set_outline_what (ArdourCanvas::Rectangle::What (ArdourCanvas::Rectangle::LEFT|ArdourCanvas::Rectangle::RIGHT));
215 frame->set_outline_what (ArdourCanvas::Rectangle::What (ArdourCanvas::Rectangle::LEFT|ArdourCanvas::Rectangle::RIGHT|ArdourCanvas::Rectangle::BOTTOM));
219 frame->set_outline_color (ARDOUR_UI::config()->get_canvasvar_RecordingRect());
221 frame->set_outline_color (ARDOUR_UI::config()->get_canvasvar_TimeAxisFrame());
229 if (Config->get_show_name_highlight() && (visibility & ShowNameHighlight)) {
234 if (visibility & FullWidthNameHighlight) {
236 width = trackview.editor().sample_to_pixel(item_duration) + RIGHT_EDGE_SHIFT;
239 width = trackview.editor().sample_to_pixel(item_duration) - 2.0 + RIGHT_EDGE_SHIFT;
242 name_highlight = new ArdourCanvas::Rectangle (group,
243 ArdourCanvas::Rect (start,
244 trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE,
245 width - 2.0 + RIGHT_EDGE_SHIFT,
246 trackview.current_height() - 1.0));
247 CANVAS_DEBUG_NAME (name_highlight, string_compose ("name highlight for %1", get_item_name()));
248 name_highlight->set_data ("timeaxisviewitem", this);
249 name_highlight->set_outline_what (ArdourCanvas::Rectangle::TOP);
250 name_highlight->set_outline_color (RGBA_TO_UINT (0,0,0,255));
256 if (visibility & ShowNameText) {
257 name_text = new ArdourCanvas::Text (group);
258 CANVAS_DEBUG_NAME (name_text, string_compose ("name text for %1", get_item_name()));
259 if (Config->get_show_name_highlight()) {
260 name_text->set_position (ArdourCanvas::Duple (NAME_X_OFFSET, trackview.current_height() - NAME_Y_OFFSET));
262 name_text->set_position (ArdourCanvas::Duple (NAME_X_OFFSET, NAME_Y_OFFSET));
264 name_text->set_font_description (NAME_FONT);
269 /* create our grab handles used for trimming/duration etc */
270 if (!_recregion && !_automation) {
271 double top = TimeAxisViewItem::GRAB_HANDLE_TOP;
272 double width = TimeAxisViewItem::GRAB_HANDLE_WIDTH;
274 frame_handle_start = new ArdourCanvas::DragHandle (group, ArdourCanvas::Rect (0.0, top, width, trackview.current_height()), true);
275 CANVAS_DEBUG_NAME (frame_handle_start, "TAVI frame handle start");
276 frame_handle_start->set_outline (false);
277 frame_handle_start->set_fill (false);
278 frame_handle_start->Event.connect (sigc::bind (sigc::mem_fun (*this, &TimeAxisViewItem::frame_handle_crossing), frame_handle_start));
280 frame_handle_end = new ArdourCanvas::DragHandle (group, ArdourCanvas::Rect (0.0, top, width, trackview.current_height()), false);
281 CANVAS_DEBUG_NAME (frame_handle_end, "TAVI frame handle end");
282 frame_handle_end->set_outline (false);
283 frame_handle_end->set_fill (false);
284 frame_handle_end->Event.connect (sigc::bind (sigc::mem_fun (*this, &TimeAxisViewItem::frame_handle_crossing), frame_handle_end));
286 frame_handle_start = frame_handle_end = 0;
289 set_color (base_color);
291 set_duration (item_duration, this);
292 set_position (start, this);
294 Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&TimeAxisViewItem::parameter_changed, this, _1), gui_context ());
295 ARDOUR_UI::config()->ParameterChanged.connect (sigc::mem_fun (*this, &TimeAxisViewItem::parameter_changed));
298 TimeAxisViewItem::~TimeAxisViewItem()
304 TimeAxisViewItem::canvas_group_event (GdkEvent* /*ev*/)
310 TimeAxisViewItem::hide_rect ()
312 rect_visible = false;
315 if (name_highlight) {
316 name_highlight->set_outline_what (ArdourCanvas::Rectangle::What (0));
317 name_highlight->set_fill_color (UINT_RGBA_CHANGE_A (fill_color, 64));
322 TimeAxisViewItem::show_rect ()
327 if (name_highlight) {
328 name_highlight->set_outline_what (ArdourCanvas::Rectangle::TOP);
329 name_highlight->set_fill_color (fill_color);
334 * Set the position of this item on the timeline.
336 * @param pos the new position
337 * @param src the identity of the object that initiated the change
338 * @return true on success
342 TimeAxisViewItem::set_position(framepos_t pos, void* src, double* delta)
344 if (position_locked) {
348 frame_position = pos;
350 double new_unit_pos = trackview.editor().sample_to_pixel (pos);
353 (*delta) = new_unit_pos - group->position().x;
358 if (new_unit_pos == group->position().x) {
363 group->set_x_position (new_unit_pos);
365 PositionChanged (frame_position, src); /* EMIT_SIGNAL */
370 /** @return position of this item on the timeline */
372 TimeAxisViewItem::get_position() const
374 return frame_position;
378 * Set the duration of this item.
380 * @param dur the new duration of this item
381 * @param src the identity of the object that initiated the change
382 * @return true on success
386 TimeAxisViewItem::set_duration (framecnt_t dur, void* src)
388 if ((dur > max_item_duration) || (dur < min_item_duration)) {
389 warning << string_compose (
390 P_("new duration %1 frame is out of bounds for %2", "new duration of %1 frames is out of bounds for %2", dur),
391 get_item_name(), dur)
402 reset_width_dependent_items (trackview.editor().sample_to_pixel (dur));
404 DurationChanged (dur, src); /* EMIT_SIGNAL */
408 /** @return duration of this item */
410 TimeAxisViewItem::get_duration() const
412 return item_duration;
416 * Set the maximum duration that this item can have.
418 * @param dur the new maximum duration
419 * @param src the identity of the object that initiated the change
422 TimeAxisViewItem::set_max_duration(framecnt_t dur, void* src)
424 max_item_duration = dur;
425 MaxDurationChanged(max_item_duration, src); /* EMIT_SIGNAL */
428 /** @return the maximum duration that this item may have */
430 TimeAxisViewItem::get_max_duration() const
432 return max_item_duration;
436 * Set the minimum duration that this item may have.
438 * @param the minimum duration that this item may be set to
439 * @param src the identity of the object that initiated the change
442 TimeAxisViewItem::set_min_duration(framecnt_t dur, void* src)
444 min_item_duration = dur;
445 MinDurationChanged(max_item_duration, src); /* EMIT_SIGNAL */
448 /** @return the minimum duration that this item mey have */
450 TimeAxisViewItem::get_min_duration() const
452 return min_item_duration;
456 * Set whether this item is locked to its current position.
457 * Locked items cannot be moved until the item is unlocked again.
459 * @param yn true to lock this item to its current position
460 * @param src the identity of the object that initiated the change
463 TimeAxisViewItem::set_position_locked(bool yn, void* src)
465 position_locked = yn;
466 set_trim_handle_colors();
467 PositionLockChanged (position_locked, src); /* EMIT_SIGNAL */
470 /** @return true if this item is locked to its current position */
472 TimeAxisViewItem::get_position_locked() const
474 return position_locked;
478 * Set whether the maximum duration constraint is active.
480 * @param active set true to enforce the max duration constraint
481 * @param src the identity of the object that initiated the change
484 TimeAxisViewItem::set_max_duration_active (bool active, void* /*src*/)
486 max_duration_active = active;
489 /** @return true if the maximum duration constraint is active */
491 TimeAxisViewItem::get_max_duration_active() const
493 return max_duration_active;
497 * Set whether the minimum duration constraint is active.
499 * @param active set true to enforce the min duration constraint
500 * @param src the identity of the object that initiated the change
504 TimeAxisViewItem::set_min_duration_active (bool active, void* /*src*/)
506 min_duration_active = active;
509 /** @return true if the maximum duration constraint is active */
511 TimeAxisViewItem::get_min_duration_active() const
513 return min_duration_active;
517 * Set the name of this item.
519 * @param new_name the new name of this item
520 * @param src the identity of the object that initiated the change
524 TimeAxisViewItem::set_item_name(std::string new_name, void* src)
526 if (new_name != item_name) {
527 std::string temp_name = item_name;
528 item_name = new_name;
529 NameChanged (item_name, temp_name, src); /* EMIT_SIGNAL */
533 /** @return the name of this item */
535 TimeAxisViewItem::get_item_name() const
541 * Set selection status.
543 * @param yn true if this item is currently selected
546 TimeAxisViewItem::set_selected(bool yn)
548 if (_selected != yn) {
549 Selectable::set_selected (yn);
554 /** @return the TimeAxisView that this item is on */
556 TimeAxisViewItem::get_time_axis_view () const
562 * Set the displayed item text.
563 * This item is the visual text name displayed on the canvas item, this can be different to the name of the item.
565 * @param new_name the new name text to display
569 TimeAxisViewItem::set_name_text(const string& new_name)
575 name_text_width = pixel_width (new_name, NAME_FONT) + 2;
576 name_text->set (new_name);
581 * Set the height of this item.
583 * @param h new height
586 TimeAxisViewItem::set_height (double height)
590 manage_name_highlight ();
592 if (visibility & ShowNameText) {
593 if (Config->get_show_name_highlight()) {
594 name_text->set_y_position (height - NAME_Y_OFFSET);
596 name_text->set_y_position (NAME_Y_OFFSET);
601 frame->set_y1 (height);
602 if (frame_handle_start) {
603 frame_handle_start->set_y1 (height);
604 frame_handle_end->set_y1 (height);
608 vestigial_frame->set_y1 (height - 1.0);
614 TimeAxisViewItem::manage_name_highlight ()
616 if (!name_highlight) {
620 if (_height < NAME_HIGHLIGHT_THRESH) {
621 high_enough_for_name = false;
623 high_enough_for_name = true;
627 wide_enough_for_name = false;
629 wide_enough_for_name = true;
632 if (name_highlight && wide_enough_for_name && high_enough_for_name) {
634 name_highlight->show();
635 name_highlight->set (ArdourCanvas::Rect (0.0, (double) _height - NAME_HIGHLIGHT_SIZE, _width+RIGHT_EDGE_SHIFT, (double) _height - 1.0));
638 name_highlight->hide();
645 TimeAxisViewItem::set_color (Gdk::Color const & base_color)
647 compute_colors (base_color);
652 TimeAxisViewItem::get_canvas_frame()
658 TimeAxisViewItem::get_canvas_group()
664 TimeAxisViewItem::get_name_highlight()
666 return name_highlight;
670 * Calculate some contrasting color for displaying various parts of this item, based upon the base color.
672 * @param color the base color of the item
675 TimeAxisViewItem::compute_colors (Gdk::Color const & base_color)
679 /* FILL: change opacity to a fixed value */
681 r = base_color.get_red()/256;
682 g = base_color.get_green()/256;
683 b = base_color.get_blue()/256;
684 fill_color = RGBA_TO_UINT(r,g,b,160);
688 * Convenience method to set the various canvas item colors
691 TimeAxisViewItem::set_colors()
695 if (name_highlight) {
696 name_highlight->set_fill_color (fill_color);
699 set_name_text_color ();
700 set_trim_handle_colors();
704 TimeAxisViewItem::set_name_text_color ()
712 const double black_r = 0.0;
713 const double black_g = 0.0;
714 const double black_b = 0.0;
716 const double white_r = 1.0;
717 const double white_g = 1.0;
718 const double white_b = 1.0;
722 if (Config->get_show_name_highlight()) {
723 /* name text will always be on top of name highlight, which
724 will always use our fill color.
728 /* name text will be on top of the item, whose color
729 may vary depending on various conditions.
731 f = get_fill_color ();
734 ArdourCanvas::color_to_rgba (f, r, g, b, a);
736 /* Use W3C contrast guideline calculation */
738 double white_contrast = (max (r, white_r) - min (r, white_r)) +
739 (max (g, white_g) - min (g, white_g)) +
740 (max (b, white_b) - min (b, white_b));
742 double black_contrast = (max (r, black_r) - min (r, black_r)) +
743 (max (g, black_g) - min (g, black_g)) +
744 (max (b, black_b) - min (b, black_b));
746 if (white_contrast > black_contrast) {
748 name_text->set_color (ArdourCanvas::rgba_to_color (1.0, 1.0, 1.0, 1.0));
751 name_text->set_color (ArdourCanvas::rgba_to_color (0.0, 0.0, 0.0, 1.0));
756 TimeAxisViewItem::get_fill_color () const
763 f = ARDOUR_UI::config()->get_canvasvar_SelectedFrameBase();
765 if (fill_opacity != 0) {
768 /* some condition of this item has set fill opacity to
769 * zero, but it has been selected, so use a mid-way
770 * alpha value to make it reasonably visible.
778 f = ARDOUR_UI::config()->get_canvasvar_RecordingRect();
781 if (high_enough_for_name && !ARDOUR_UI::config()->get_color_regions_using_track_color()) {
782 f = ARDOUR_UI::config()->get_canvasvar_FrameBase();
798 return UINT_RGBA_CHANGE_A (f, o);
802 * Sets the frame color depending on whether this item is selected
805 TimeAxisViewItem::set_frame_color()
811 frame->set_fill_color (get_fill_color());
812 set_frame_gradient ();
818 f = ARDOUR_UI::config()->get_canvasvar_SelectedTimeAxisFrame();
820 f = ARDOUR_UI::config()->get_canvasvar_TimeAxisFrame();
824 /* make the frame outline be visible but rather transparent */
825 f = UINT_RGBA_CHANGE_A (f, 64);
828 frame->set_outline_color (f);
833 TimeAxisViewItem::set_frame_gradient ()
835 if (ARDOUR_UI::config()->get_timeline_item_gradient_depth() == 0.0) {
836 frame->set_gradient (ArdourCanvas::Fill::StopList (), 0);
840 ArdourCanvas::Fill::StopList stops;
843 ArdourCanvas::Color f (get_fill_color());
845 /* need to get alpha value */
846 ArdourCanvas::color_to_rgba (f, r, g, b, a);
848 stops.push_back (std::make_pair (0.0, f));
850 /* now a darker version */
852 ArdourCanvas::color_to_hsv (f, h, s, v);
854 v = min (1.0, v * (1.0 - ARDOUR_UI::config()->get_timeline_item_gradient_depth()));
856 ArdourCanvas::Color darker = ArdourCanvas::hsv_to_color (h, s, v, a);
857 stops.push_back (std::make_pair (1.0, darker));
859 frame->set_gradient (stops, true);
863 * Set the colors of the start and end trim handle depending on object state
866 TimeAxisViewItem::set_trim_handle_colors()
869 /* Leave them transparent for now */
870 if (frame_handle_start) {
871 frame_handle_start->set_fill_color (0x00000000);
872 frame_handle_end->set_fill_color (0x00000000);
875 if (frame_handle_start) {
876 if (position_locked) {
877 frame_handle_start->set_fill_color (ARDOUR_UI::config()->get_canvasvar_TrimHandleLocked());
878 frame_handle_end->set_fill_color (ARDOUR_UI::config()->get_canvasvar_TrimHandleLocked());
880 frame_handle_start->set_fill_color (ARDOUR_UI::config()->get_canvasvar_TrimHandle());
881 frame_handle_end->set_fill_color (ARDOUR_UI::config()->get_canvasvar_TrimHandle());
888 TimeAxisViewItem::frame_handle_crossing (GdkEvent* ev, ArdourCanvas::Rectangle* item)
891 case GDK_LEAVE_NOTIFY:
892 /* always hide the handle whenever we leave, no matter what mode */
893 item->set_fill (false);
895 case GDK_ENTER_NOTIFY:
896 if (trackview.editor().effective_mouse_mode() == Editing::MouseObject &&
897 !trackview.editor().internal_editing()) {
898 /* never set this to be visible in internal
899 edit mode. Note, however, that we do need to
900 undo visibility (LEAVE_NOTIFY case above) no
901 matter what the mode is.
903 item->set_fill (true);
912 /** @return the frames per pixel */
914 TimeAxisViewItem::get_samples_per_pixel () const
916 return samples_per_pixel;
919 /** Set the frames per pixel of this item.
920 * This item is used to determine the relative visual size and position of this item
921 * based upon its duration and start value.
923 * @param fpp the new frames per pixel
926 TimeAxisViewItem::set_samples_per_pixel (double fpp)
928 samples_per_pixel = fpp;
929 set_position (this->get_position(), this);
930 reset_width_dependent_items ((double) get_duration() / samples_per_pixel);
934 TimeAxisViewItem::reset_width_dependent_items (double pixel_width)
936 _width = pixel_width;
938 manage_name_highlight ();
941 if (pixel_width < 2.0) {
943 if (show_vestigial) {
944 vestigial_frame->show();
951 if (frame_handle_start) {
952 frame_handle_start->hide();
953 frame_handle_end->hide();
957 vestigial_frame->hide();
961 frame->set_x1 (pixel_width + RIGHT_EDGE_SHIFT);
964 if (frame_handle_start) {
965 if (pixel_width < (3 * TimeAxisViewItem::GRAB_HANDLE_WIDTH)) {
967 * there's less than GRAB_HANDLE_WIDTH of the region between
968 * the right-hand end of frame_handle_start and the left-hand
969 * end of frame_handle_end, so disable the handles
972 frame_handle_start->hide();
973 frame_handle_end->hide();
975 frame_handle_start->show();
976 frame_handle_end->set_x0 (pixel_width + RIGHT_EDGE_SHIFT - (TimeAxisViewItem::GRAB_HANDLE_WIDTH));
977 frame_handle_end->set_x1 (pixel_width + RIGHT_EDGE_SHIFT);
978 frame_handle_end->show();
985 TimeAxisViewItem::manage_name_text ()
987 int visible_name_width;
993 if (!wide_enough_for_name || !high_enough_for_name) {
998 if (name_text->text().empty()) {
1002 visible_name_width = name_text_width;
1004 if (visible_name_width > _width - NAME_X_OFFSET) {
1005 visible_name_width = _width - NAME_X_OFFSET;
1008 if (visible_name_width < 1) {
1011 name_text->clamp_width (visible_name_width);
1017 * Callback used to remove this time axis item during the gtk idle loop.
1018 * This is used to avoid deleting the obejct while inside the remove_this_item
1021 * @param item the TimeAxisViewItem to remove.
1022 * @param src the identity of the object that initiated the change.
1025 TimeAxisViewItem::idle_remove_this_item(TimeAxisViewItem* item, void* src)
1027 item->ItemRemoved (item->get_item_name(), src); /* EMIT_SIGNAL */
1034 TimeAxisViewItem::set_y (double y)
1036 group->set_y_position (y);
1040 TimeAxisViewItem::parameter_changed (string p)
1042 if (p == "color-regions-using-track-color") {
1044 } else if (p == "timeline-item-gradient-depth") {
1045 set_frame_gradient ();