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.
20 #include <pbd/error.h>
21 #include <pbd/stacktrace.h>
23 #include <ardour/types.h>
24 #include <ardour/ardour.h>
26 #include <gtkmm2ext/utils.h>
28 #include "public_editor.h"
29 #include "time_axis_view_item.h"
30 #include "time_axis_view.h"
31 #include "simplerect.h"
33 #include "canvas_impl.h"
34 #include "rgb_macros.h"
39 using namespace Editing;
43 //------------------------------------------------------------------------------
44 /** Initialize const static memeber data */
46 Pango::FontDescription TimeAxisViewItem::NAME_FONT;
47 bool TimeAxisViewItem::have_name_font = false;
48 const double TimeAxisViewItem::NAME_X_OFFSET = 15.0;
49 const double TimeAxisViewItem::GRAB_HANDLE_LENGTH = 6 ;
51 double TimeAxisViewItem::NAME_Y_OFFSET;
52 double TimeAxisViewItem::NAME_HIGHLIGHT_SIZE;
53 double TimeAxisViewItem::NAME_HIGHLIGHT_THRESH;
56 //---------------------------------------------------------------------------------------//
57 // Constructor / Desctructor
60 * Constructs a new TimeAxisViewItem.
62 * @param it_name the unique name/Id of this item
63 * @param parant the parent canvas group
64 * @param tv the TimeAxisView we are going to be added to
65 * @param spu samples per unit
67 * @param start the start point of this item
68 * @param duration the duration of this item
70 TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group& parent, TimeAxisView& tv, double spu, Gdk::Color& base_color,
71 nframes_t start, nframes_t duration,
75 if (!have_name_font) {
77 /* first constructed item sets up font info */
79 NAME_FONT = get_font_for_style (N_("TimeAxisViewItemName"));
85 Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout (X_("Hg")); /* ascender + descender */
89 layout->set_font_description (NAME_FONT);
90 Gtkmm2ext::get_ink_pixel_size (layout, width, height);
92 NAME_Y_OFFSET = height + 6;
93 NAME_HIGHLIGHT_SIZE = height + 6;
94 NAME_HIGHLIGHT_THRESH = NAME_HIGHLIGHT_SIZE * 2;
96 have_name_font = true;
99 group = new ArdourCanvas::Group (parent);
101 init (it_name, spu, base_color, start, duration, vis);
105 TimeAxisViewItem::TimeAxisViewItem (const TimeAxisViewItem& other)
106 : trackview (other.trackview)
112 UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
113 c.set_rgb_p (r/255.0, g/255.0, b/255.0);
115 /* share the other's parent, but still create a new group */
117 Gnome::Canvas::Group* parent = other.group->property_parent();
119 group = new ArdourCanvas::Group (*parent);
121 init (other.item_name, other.samples_per_unit, c, other.frame_position, other.item_duration, other.visibility);
126 TimeAxisViewItem::init (const string& it_name, double spu, Gdk::Color& base_color, nframes_t start, nframes_t duration, Visibility vis)
128 item_name = it_name ;
129 name_text_width = ::pixel_width (it_name, NAME_FONT);
130 last_name_text_width = 0;
131 samples_per_unit = spu ;
132 should_show_selection = true;
133 frame_position = start ;
134 item_duration = duration ;
135 name_connected = false;
137 position_locked = false ;
138 max_item_duration = ARDOUR::max_frames;
139 min_item_duration = 0 ;
140 show_vestigial = true;
145 warning << "Time Axis Item Duration == 0" << endl ;
148 vestigial_frame = new ArdourCanvas::SimpleRect (*group);
149 vestigial_frame->property_x1() = (double) 0.0;
150 vestigial_frame->property_y1() = (double) 1.0;
151 vestigial_frame->property_x2() = 2.0;
152 vestigial_frame->property_y2() = (double) trackview.height;
153 vestigial_frame->property_outline_color_rgba() = color_map[cVestigialFrameOutline];
154 vestigial_frame->property_fill_color_rgba() = color_map[cVestigialFrameFill];
155 vestigial_frame->hide ();
157 if (visibility & ShowFrame) {
158 frame = new ArdourCanvas::SimpleRect (*group);
159 frame->property_x1() = (double) 0.0;
160 frame->property_y1() = (double) 1.0;
161 frame->property_x2() = (double) trackview.editor.frame_to_pixel(duration);
162 frame->property_y2() = (double) trackview.height;
163 frame->property_outline_color_rgba() = color_map[cTimeAxisFrameOutline];
164 frame->property_fill_color_rgba() = color_map[cTimeAxisFrameFill];
166 /* by default draw all 4 edges */
168 uint32_t outline_what = 0x1|0x2|0x4|0x8;
170 if (visibility & HideFrameLeft) {
171 outline_what &= ~(0x1);
174 if (visibility & HideFrameRight) {
175 outline_what &= ~(0x2);
178 if (visibility & HideFrameTB) {
179 outline_what &= ~(0x4 | 0x8);
182 frame->property_outline_what() = outline_what;
188 if (visibility & ShowNameHighlight) {
189 name_highlight = new ArdourCanvas::SimpleRect (*group);
190 if (visibility & FullWidthNameHighlight) {
191 name_highlight->property_x1() = (double) 0.0;
192 name_highlight->property_x2() = (double) (trackview.editor.frame_to_pixel(item_duration));
194 name_highlight->property_x1() = (double) 1.0;
195 name_highlight->property_x2() = (double) (trackview.editor.frame_to_pixel(item_duration)) - 1;
197 name_highlight->property_y1() = (double) (trackview.height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE);
198 name_highlight->property_y2() = (double) (trackview.height - 1);
199 name_highlight->property_outline_color_rgba() = color_map[cNameHighlightFill];
200 name_highlight->property_fill_color_rgba() = color_map[cNameHighlightOutline];
202 name_highlight->set_data ("timeaxisviewitem", this);
208 if (visibility & ShowNameText) {
209 name_text = new ArdourCanvas::Text (*group);
210 name_text->property_x() = (double) TimeAxisViewItem::NAME_X_OFFSET;
211 /* trackview.height is the bottom of the trackview. subtract 1 to get back to the bottom of the highlight,
212 then NAME_Y_OFFSET to position the text in the vertical center of the highlight
214 name_text->property_y() = (double) trackview.height - 1.0 - TimeAxisViewItem::NAME_Y_OFFSET;
215 name_text->property_font_desc() = NAME_FONT;
216 name_text->property_anchor() = Gtk::ANCHOR_NW;
218 name_text->set_data ("timeaxisviewitem", this);
224 /* create our grab handles used for trimming/duration etc */
226 if (visibility & ShowHandles) {
227 frame_handle_start = new ArdourCanvas::SimpleRect (*group);
228 frame_handle_start->property_x1() = (double) 0.0;
229 frame_handle_start->property_x2() = (double) TimeAxisViewItem::GRAB_HANDLE_LENGTH;
230 frame_handle_start->property_y1() = (double) 1.0;
231 frame_handle_start->property_y2() = (double) TimeAxisViewItem::GRAB_HANDLE_LENGTH+1;
232 frame_handle_start->property_outline_color_rgba() = color_map[cFrameHandleStartOutline];
233 frame_handle_start->property_fill_color_rgba() = color_map[cFrameHandleStartFill];
235 frame_handle_end = new ArdourCanvas::SimpleRect (*group);
236 frame_handle_end->property_x1() = (double) (trackview.editor.frame_to_pixel(get_duration())) - (TimeAxisViewItem::GRAB_HANDLE_LENGTH);
237 frame_handle_end->property_x2() = (double) trackview.editor.frame_to_pixel(get_duration());
238 frame_handle_end->property_y1() = (double) 1;
239 frame_handle_end->property_y2() = (double) TimeAxisViewItem::GRAB_HANDLE_LENGTH + 1;
240 frame_handle_end->property_outline_color_rgba() = color_map[cFrameHandleEndOutline];
241 frame_handle_end->property_fill_color_rgba() = color_map[cFrameHandleEndFill];
244 frame_handle_start = 0;
245 frame_handle_end = 0;
248 set_color (base_color) ;
250 set_duration (item_duration, this) ;
251 set_position (start, this) ;
257 TimeAxisViewItem::~TimeAxisViewItem()
263 //---------------------------------------------------------------------------------------//
264 // Position and duration Accessors/Mutators
267 * Set the position of this item upon the timeline to the specified value
269 * @param pos the new position
270 * @param src the identity of the object that initiated the change
271 * @return true if the position change was a success, false otherwise
274 TimeAxisViewItem::set_position(nframes_t pos, void* src, double* delta)
276 if (position_locked) {
280 frame_position = pos;
282 /* This sucks. The GnomeCanvas version I am using
283 doesn't correctly implement gnome_canvas_group_set_arg(),
284 so that simply setting the "x" arg of the group
285 fails to move the group. Instead, we have to
286 use gnome_canvas_item_move(), which does the right
287 thing. I see that in GNOME CVS, the current (Sept 2001)
288 version of GNOME Canvas rectifies this issue cleanly.
291 double old_unit_pos ;
292 double new_unit_pos = pos / samples_per_unit ;
294 old_unit_pos = group->property_x();
296 if (new_unit_pos != old_unit_pos) {
297 group->move (new_unit_pos - old_unit_pos, 0.0);
301 (*delta) = new_unit_pos - old_unit_pos;
304 PositionChanged (frame_position, src) ; /* EMIT_SIGNAL */
310 * Return the position of this item upon the timeline
312 * @return the position of this item
315 TimeAxisViewItem::get_position() const
317 return frame_position;
321 * Sets the duration of this item
323 * @param dur the new duration of this item
324 * @param src the identity of the object that initiated the change
325 * @return true if the duration change was succesful, false otherwise
328 TimeAxisViewItem::set_duration (nframes_t dur, void* src)
330 if ((dur > max_item_duration) || (dur < min_item_duration)) {
331 warning << string_compose (_("new duration %1 frames is out of bounds for %2"), get_item_name(), dur)
342 reset_width_dependent_items (trackview.editor.frame_to_pixel (dur));
344 DurationChanged (dur, src) ; /* EMIT_SIGNAL */
349 * Returns the duration of this item
353 TimeAxisViewItem::get_duration() const
355 return (item_duration);
359 * Sets the maximum duration that this item make have.
361 * @param dur the new maximum duration
362 * @param src the identity of the object that initiated the change
365 TimeAxisViewItem::set_max_duration(nframes_t dur, void* src)
367 max_item_duration = dur ;
368 MaxDurationChanged(max_item_duration, src) ; /* EMIT_SIGNAL */
372 * Returns the maxmimum duration that this item may be set to
374 * @return the maximum duration that this item may be set to
377 TimeAxisViewItem::get_max_duration() const
379 return (max_item_duration) ;
383 * Sets the minimu duration that this item may be set to
385 * @param the minimum duration that this item may be set to
386 * @param src the identity of the object that initiated the change
389 TimeAxisViewItem::set_min_duration(nframes_t dur, void* src)
391 min_item_duration = dur ;
392 MinDurationChanged(max_item_duration, src) ; /* EMIT_SIGNAL */
396 * Returns the minimum duration that this item mey be set to
398 * @return the nimum duration that this item mey be set to
401 TimeAxisViewItem::get_min_duration() const
403 return(min_item_duration) ;
407 * Sets whether the position of this Item is locked to its current position
408 * Locked items cannot be moved until the item is unlocked again.
410 * @param yn set to true to lock this item to its current position
411 * @param src the identity of the object that initiated the change
414 TimeAxisViewItem::set_position_locked(bool yn, void* src)
416 position_locked = yn ;
417 set_trim_handle_colors() ;
418 PositionLockChanged (position_locked, src); /* EMIT_SIGNAL */
422 * Returns whether this item is locked to its current position
424 * @return true if this item is locked to its current posotion
428 TimeAxisViewItem::get_position_locked() const
430 return (position_locked);
434 * Sets whether the Maximum Duration constraint is active and should be enforced
436 * @param active set true to enforce the max duration constraint
437 * @param src the identity of the object that initiated the change
440 TimeAxisViewItem::set_max_duration_active(bool active, void* src)
442 max_duration_active = active ;
446 * Returns whether the Maximum Duration constraint is active and should be enforced
448 * @return true if the maximum duration constraint is active, false otherwise
451 TimeAxisViewItem::get_max_duration_active() const
453 return(max_duration_active) ;
457 * Sets whether the Minimum Duration constraint is active and should be enforced
459 * @param active set true to enforce the min duration constraint
460 * @param src the identity of the object that initiated the change
463 TimeAxisViewItem::set_min_duration_active(bool active, void* src)
465 min_duration_active = active ;
469 * Returns whether the Maximum Duration constraint is active and should be enforced
471 * @return true if the maximum duration constraint is active, false otherwise
474 TimeAxisViewItem::get_min_duration_active() const
476 return(min_duration_active) ;
479 //---------------------------------------------------------------------------------------//
480 // Name/Id Accessors/Mutators
483 * Set the name/Id of this item.
485 * @param new_name the new name of this item
486 * @param src the identity of the object that initiated the change
489 TimeAxisViewItem::set_item_name(std::string new_name, void* src)
491 if (new_name != item_name) {
492 std::string temp_name = item_name ;
493 item_name = new_name ;
494 name_text_width = ::pixel_width (new_name, NAME_FONT);
495 NameChanged (item_name, temp_name, src) ; /* EMIT_SIGNAL */
500 * Returns the name/id of this item
502 * @return the name/id of this item
505 TimeAxisViewItem::get_item_name() const
510 //---------------------------------------------------------------------------------------//
514 * Set to true to indicate that this item is currently selected
516 * @param yn true if this item is currently selected
517 * @param src the identity of the object that initiated the change
520 TimeAxisViewItem::set_selected(bool yn)
522 if (_selected != yn) {
523 Selectable::set_selected (yn);
529 TimeAxisViewItem::set_should_show_selection (bool yn)
531 if (should_show_selection != yn) {
532 should_show_selection = yn;
537 //---------------------------------------------------------------------------------------//
538 // Parent Componenet Methods
541 * Returns the TimeAxisView that this item is upon
543 * @return the timeAxisView that this item is placed upon
546 TimeAxisViewItem::get_time_axis_view()
550 //---------------------------------------------------------------------------------------//
554 * Sets the displayed item text
555 * This item is the visual text name displayed on the canvas item, this can be different to the name of the item
557 * @param new_name the new name text to display
560 TimeAxisViewItem::set_name_text(const ustring& new_name)
563 name_text->property_text() = new_name;
564 name_text_width = pixel_width (new_name, NAME_FONT);
565 name_text_size_cache.clear ();
570 * Set the y position and height of this item.
572 * @param y the new y position
573 * @param h the new height
576 TimeAxisViewItem::set_y_position_and_height (double y, double h)
578 if (name_highlight) {
579 if (h < NAME_HIGHLIGHT_THRESH) {
580 name_highlight->hide();
585 name_highlight->show();
591 if (h > NAME_HIGHLIGHT_SIZE) {
592 name_highlight->property_y1() = (double) y + h + 1 - NAME_HIGHLIGHT_SIZE;
593 name_highlight->property_y2() = (double) y + h;
596 /* it gets hidden now anyway */
597 name_highlight->property_y1() = (double) y;
598 name_highlight->property_y2() = (double) y + h;
603 name_text->property_y() = y + h + 1 - NAME_Y_OFFSET;
604 if (h < NAME_HIGHLIGHT_THRESH) {
605 name_text->property_fill_color_rgba() = fill_color;
608 name_text->property_fill_color_rgba() = label_color;
613 frame->property_y1() = y;
614 frame->property_y2() = y + h + 1;
617 vestigial_frame->property_y1() = y;
618 vestigial_frame->property_y2() = y + h + 1;
625 TimeAxisViewItem::set_color(Gdk::Color& base_color)
627 compute_colors (base_color);
635 TimeAxisViewItem::get_canvas_frame()
644 TimeAxisViewItem::get_canvas_group()
653 TimeAxisViewItem::get_name_highlight()
655 return (name_highlight) ;
662 TimeAxisViewItem::get_name_text()
668 * Calculates some contrasting color for displaying various parts of this item, based upon the base color
670 * @param color the base color of the item
673 TimeAxisViewItem::compute_colors(Gdk::Color& base_color)
675 unsigned char radius ;
678 unsigned char r,g,b ;
680 /* FILL: this is simple */
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,255) ;
687 if the overall saturation is strong, make the minor colors light.
688 if its weak, make them dark.
690 we do this by moving an equal distance to the other side of the
691 central circle in the color wheel from where we started.
694 radius = (unsigned char) rint (floor (sqrt (static_cast<double>(r*r + g*g + b+b))/3.0f)) ;
695 minor_shift = 125 - radius ;
697 /* LABEL: rotate around color wheel by 120 degrees anti-clockwise */
699 r = base_color.get_red()/256;
700 g = base_color.get_green()/256;
701 b = base_color.get_blue()/256;
707 /* red sector => green */
712 /* green sector => blue */
720 /* blue sector => red */
725 /* green sector => blue */
734 label_color = RGBA_TO_UINT(r,g,b,255);
735 r = (base_color.get_red()/256) + 127 ;
736 g = (base_color.get_green()/256) + 127 ;
737 b = (base_color.get_blue()/256) + 127 ;
739 label_color = RGBA_TO_UINT(r,g,b,255);
741 /* XXX can we do better than this ? */
742 /* We're trying ;) */
745 //frame_color_r = 192;
746 //frame_color_g = 192;
747 //frame_color_b = 194;
749 //selected_frame_color_r = 182;
750 //selected_frame_color_g = 145;
751 //selected_frame_color_b = 168;
753 //handle_color_r = 25 ;
754 //handle_color_g = 0 ;
755 //handle_color_b = 255 ;
756 //lock_handle_color_r = 235 ;
757 //lock_handle_color_g = 16;
758 //lock_handle_color_b = 16;
762 * Convenience method to set the various canvas item colors
765 TimeAxisViewItem::set_colors()
769 double height = NAME_HIGHLIGHT_THRESH;
772 height = frame->property_y2();
775 if (height < NAME_HIGHLIGHT_THRESH) {
776 name_text->property_fill_color_rgba() = fill_color;
779 name_text->property_fill_color_rgba() = label_color;
783 if (name_highlight) {
784 name_highlight->property_fill_color_rgba() = fill_color;
785 name_highlight->property_outline_color_rgba() = fill_color;
787 set_trim_handle_colors() ;
791 * Sets the frame color depending on whether this item is selected
794 TimeAxisViewItem::set_frame_color()
799 if (_selected && should_show_selection) {
800 UINT_TO_RGBA(color_map[cSelectedFrameBase], &r, &g, &b, &a);
801 frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity);
803 UINT_TO_RGBA(color_map[cFrameBase], &r, &g, &b, &a);
804 frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity);
810 * Sets the colors of the start and end trim handle depending on object state
814 TimeAxisViewItem::set_trim_handle_colors()
816 if (frame_handle_start) {
817 if (position_locked) {
818 frame_handle_start->property_fill_color_rgba() = color_map[cTrimHandleLockedStart];
819 frame_handle_end->property_fill_color_rgba() = color_map[cTrimHandleLockedEnd];
821 frame_handle_start->property_fill_color_rgba() = color_map[cTrimHandleStart];
822 frame_handle_end->property_fill_color_rgba() = color_map[cTrimHandleEnd];
828 TimeAxisViewItem::get_samples_per_unit()
830 return(samples_per_unit) ;
834 TimeAxisViewItem::set_samples_per_unit (double spu)
836 samples_per_unit = spu ;
837 set_position (this->get_position(), this);
838 reset_width_dependent_items ((double)get_duration() / samples_per_unit);
842 TimeAxisViewItem::reset_width_dependent_items (double pixel_width)
844 if (pixel_width < GRAB_HANDLE_LENGTH * 2) {
846 if (frame_handle_start) {
847 frame_handle_start->hide();
848 frame_handle_end->hide();
851 } if (pixel_width < 2.0) {
853 if (show_vestigial) {
854 vestigial_frame->show();
857 if (name_highlight) {
858 name_highlight->hide();
868 if (frame_handle_start) {
869 frame_handle_start->hide();
870 frame_handle_end->hide();
874 vestigial_frame->hide();
876 if (name_highlight) {
878 double height = name_highlight->property_y2 ();
880 if (height < NAME_HIGHLIGHT_THRESH) {
881 name_highlight->hide();
886 name_highlight->show();
887 if (name_text && !get_item_name().empty()) {
889 reset_name_width (pixel_width);
893 if (visibility & FullWidthNameHighlight) {
894 name_highlight->property_x2() = pixel_width;
896 name_highlight->property_x2() = pixel_width - 1.0;
903 frame->property_x2() = pixel_width;
906 if (frame_handle_start) {
907 if (pixel_width < (2*TimeAxisViewItem::GRAB_HANDLE_LENGTH)) {
908 frame_handle_start->hide();
909 frame_handle_end->hide();
911 frame_handle_start->show();
912 frame_handle_end->property_x1() = pixel_width - (TimeAxisViewItem::GRAB_HANDLE_LENGTH);
913 frame_handle_end->show();
914 frame_handle_end->property_x2() = pixel_width;
920 TimeAxisViewItem::reset_name_width (double pixel_width)
922 if (name_text == 0) {
926 int limit = (int) floor (pixel_width - NAME_X_OFFSET);
927 bool shrinking = (last_name_text_width > pixel_width);
930 ustring::size_type n;
932 if ((last_name_text_width && // we did this once
933 shrinking && // we're getting smaller
934 (name_text_width <= limit) && // fits the new size
935 (name_text_width <= last_name_text_width - NAME_X_OFFSET))) { // fit into the old size too
936 last_name_text_width = pixel_width;
940 /* now check the cache of existing truncations */
943 Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout ("");
945 for (n = item_name.length(); n > 0; --n) {
947 map<ustring::size_type,int>::iterator i;
949 if ((i = name_text_size_cache.find (n)) != name_text_size_cache.end()) {
951 /* we know the length of this substring already */
953 if ((actual_width = (*i).second) < limit) {
955 /* it fits, use it */
957 ustr = item_name.substr (0, n);
963 /* we don't know the length of this substring already, so compute
964 it and put it into the cache.
967 layout->set_text (item_name.substr (0, n));
970 Gtkmm2ext::get_ink_pixel_size (layout, width, height);
972 name_text_size_cache[n] = width;
974 if ((actual_width = width) < limit) {
975 ustr = item_name.substr (0, n);
982 name_text->property_text() = "";
983 last_name_text_width = pixel_width;
987 /* don't use name for event handling if it leaves no room
988 for trimming to work.
991 if (pixel_width - actual_width < (NAME_X_OFFSET * 2.0)) {
992 if (name_connected) {
993 name_connected = false;
996 if (!name_connected) {
997 name_connected = true;
1001 name_text->property_text() = ustr;
1002 name_text_width = actual_width;
1004 last_name_text_width = pixel_width;
1009 //---------------------------------------------------------------------------------------//
1010 // Handle time axis removal
1013 * Handles the Removal of this time axis item
1014 * This _needs_ to be called to alert others of the removal properly, ie where the source
1015 * of the removal came from.
1017 * XXX Although im not too happy about this method of doing things, I cant think of a cleaner method
1018 * just now to capture the source of the removal
1020 * @param src the identity of the object that initiated the change
1023 TimeAxisViewItem::remove_this_item(void* src)
1026 defer to idle loop, otherwise we'll delete this object
1027 while we're still inside this function ...
1029 Glib::signal_idle().connect(bind (sigc::ptr_fun (&TimeAxisViewItem::idle_remove_this_item), this, src));
1033 * Callback used to remove this time axis item during the gtk idle loop
1034 * This is used to avoid deleting the obejct while inside the remove_this_item
1037 * @param item the TimeAxisViewItem to remove
1038 * @param src the identity of the object that initiated the change
1041 TimeAxisViewItem::idle_remove_this_item(TimeAxisViewItem* item, void* src)
1043 item->ItemRemoved (item->get_item_name(), src) ; /* EMIT_SIGNAL */