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.
23 #include <gtkmm2ext/gtk_ui.h>
25 #include "imageframe_time_axis_group.h"
26 #include "imageframe_time_axis_view.h"
27 #include "imageframe_view.h"
28 #include "imageframe_time_axis.h"
29 #include "canvas-simplerect.h"
30 #include "region_selection.h"
31 #include "public_editor.h"
32 #include "gui_thread.h"
36 using namespace ARDOUR ;
38 PBD::Signal1<void,ImageFrameTimeAxisGroup*> ImageFrameTimeAxisGroup::CatchDeletion;
40 //---------------------------------------------------------------------------------------//
41 // Constructor / Desctructor
44 * Constructs a new ImageFrameTimeAxisGroup.
46 * @param iftav the parent ImageFrameTimeAxis of this view helper
47 * @param group_id the unique name/id of this group
49 ImageFrameTimeAxisGroup::ImageFrameTimeAxisGroup(ImageFrameTimeAxisView& iftav, const string & group_id)
50 : _view_helper(iftav), _group_id(group_id)
52 selected_imageframe_item = 0 ;
58 * Responsible for destroying any Items that may have been added to this group
61 ImageFrameTimeAxisGroup::~ImageFrameTimeAxisGroup()
63 // Destroy all the ImageFramViews that we have
64 for(ImageFrameViewList::iterator iter = imageframe_views.begin(); iter != imageframe_views.end(); ++iter)
66 ImageFrameView* ifv = *iter ;
68 ImageFrameViewList::iterator next = iter ;
71 imageframe_views.erase(iter) ;
79 CatchDeletion ; /* EMIT_SIGNAL */
83 //---------------------------------------------------------------------------------------//
84 // Name/Id Accessors/Mutators
87 * Set the name/Id of this group.
89 * @param new_name the new name of this group
90 * @param src the identity of the object that initiated the change
93 ImageFrameTimeAxisGroup::set_group_name(const string & new_name, void* src)
95 if(_group_id != new_name)
97 std::string temp_name = _group_id ;
98 _group_id = new_name ;
99 NameChanged(_group_id, temp_name, src) ; /* EMIT_SIGNAL */
104 * Returns the id of this group
105 * The group id must be unique upon a time axis
107 * @return the id of this group
110 ImageFrameTimeAxisGroup::get_group_name() const
116 //---------------------------------------------------------------------------------------//
120 * Sets the height of the time axis view and the item upon it
122 * @param height the new height
125 ImageFrameTimeAxisGroup::set_item_heights(gdouble h)
127 /* limit the values to something sane-ish */
128 if (h < 10.0 || h > 1000.0)
133 // set the heights of all the imaeg frame views within the group
134 for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); ++citer)
136 (*citer)->set_height(h) ;
143 * Sets the current samples per unit.
144 * this method tells each item upon the time axis of the change
146 * @param spu the new samples per canvas unit value
149 ImageFrameTimeAxisGroup::set_item_samples_per_units(gdouble spp)
156 for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); ++citer)
158 (*citer)->set_samples_per_unit(spp) ;
165 * Sets the color of the items contained uopn this view helper
167 * @param color the new base color
170 ImageFrameTimeAxisGroup::apply_item_color(Gdk::Color& color)
172 region_color = color ;
173 for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); citer++)
175 (*citer)->set_color (region_color) ;
181 //---------------------------------------------------------------------------------------//
182 // child ImageFrameView methods
185 * Adds an ImageFrameView to the list of items upon this time axis view helper
186 * the new ImageFrameView is returned
188 * @param item_id the unique id of the new item
189 * @param image_id the id/name of the image data we are usin
190 * @param start the position the new item should be placed upon the time line
191 * @param duration the duration the new item should be placed upon the timeline
192 * @param rgb_data the rgb data of the image
193 * @param width the original image width of the rgb_data (not the size to display)
194 * @param height the irigianl height of the rgb_data
195 * @param num_channels the number of channles within the rgb_data
196 * @param src the identity of the object that initiated the change
199 ImageFrameTimeAxisGroup::add_imageframe_item(const string & frame_id, nframes_t start, nframes_t duration, unsigned char* rgb_data, uint32_t width, uint32_t height, uint32_t num_channels, void* src)
201 ImageFrameView* ifv = 0 ;
203 //check that there is not already an imageframe with that id
204 if(get_named_imageframe_item(frame_id) == 0)
206 ifv = new ImageFrameView(frame_id,
207 _view_helper.canvas_item()->property_parent(),
208 &(_view_helper.trackview()),
210 _view_helper.trackview().editor.get_current_zoom(),
219 imageframe_views.push_front(ifv) ;
221 ifv->CatchDeletion.connect (*this, boost::bind (&ImageFrameTimeAxisGroup::remove_imageframe_item, this, (void*)this), gui_context());
223 ImageFrameAdded(ifv, src) ; /* EMIT_SIGNAL */
231 * Returns the named ImageFrameView or 0 if the named view does not exist on this view helper
233 * @param item_id the unique id of the item to search for
234 * @return the named ImageFrameView, or 0 if it is not held upon this view
237 ImageFrameTimeAxisGroup::get_named_imageframe_item(const string & frame_id)
239 ImageFrameView* ifv = 0 ;
241 for (ImageFrameViewList::const_iterator i = imageframe_views.begin(); i != imageframe_views.end(); ++i)
243 if (((ImageFrameView*)*i)->get_item_name() == frame_id)
245 ifv = ((ImageFrameView*)*i) ;
253 * Removes the currently selected ImageFrameView
255 * @param src the identity of the object that initiated the change
256 * @todo need to remoev this, the selected item within group is no longer
257 * used in favour of a time axis selected item
258 * @see add_imageframe_view
261 ImageFrameTimeAxisGroup::remove_selected_imageframe_item(void* src)
263 std::string frame_id ;
265 if(selected_imageframe_item)
267 ImageFrameViewList::iterator i ;
269 if((i = find(imageframe_views.begin(), imageframe_views.end(), selected_imageframe_item)) != imageframe_views.end())
271 imageframe_views.erase(i) ;
272 frame_id = selected_imageframe_item->get_item_name() ;
274 // note that we delete the item here
275 delete(selected_imageframe_item) ;
276 selected_imageframe_item = 0 ;
278 std::string track_id = _view_helper.trackview().name() ;
279 ImageFrameRemoved(track_id, _group_id, frame_id, src) ; /* EMIT_SIGNAL */
284 //cerr << "No Selected ImageFrame" << endl ;
290 * Removes and returns the named ImageFrameView from the list of ImageFrameViews held by this view helper
292 * @param item_id the ImageFrameView unique id to remove
293 * @param src the identity of the object that initiated the change
294 * @see add_imageframe_view
297 ImageFrameTimeAxisGroup::remove_named_imageframe_item(const string & frame_id, void* src)
299 ImageFrameView* removed = 0 ;
301 for(ImageFrameViewList::iterator iter = imageframe_views.begin(); iter != imageframe_views.end(); ++iter)
303 ImageFrameView* tempItem = *iter ;
304 if(tempItem->get_item_name() == frame_id)
307 imageframe_views.erase(iter) ;
309 if (removed == selected_imageframe_item)
311 selected_imageframe_item = 0 ;
314 std::string track_id = _view_helper.trackview().name() ;
315 ImageFrameRemoved(track_id, _group_id, frame_id, src) ; /* EMIT_SIGNAL */
317 // break from the for loop
327 * Removes ifv from the list of ImageFrameViews upon this TimeAxis.
328 * if ifv is not upon this TimeAxis, this method takes no action
330 * @param ifv the ImageFrameView to remove
333 ImageFrameTimeAxisGroup::remove_imageframe_item(ImageFrameView* ifv, void* src)
335 ENSURE_GUI_THREAD (*this, &ImageFrameTimeAxisGroup::remove_imageframe_item, ifv, src)
337 ImageFrameViewList::iterator i;
338 if((i = find (imageframe_views.begin(), imageframe_views.end(), ifv)) != imageframe_views.end())
340 imageframe_views.erase(i) ;
342 std::string frame_id = ifv->get_item_name() ;
343 std::string track_id = _view_helper.trackview().name() ;
344 ImageFrameRemoved(track_id, _group_id, frame_id, src) ; /* EMIT_SIGNAL */
348 //---------------------------------------------------------------------------------------//
349 // Selected group methods
352 * Sets the currently selected item upon this time axis
354 * @param ifv the item to set selected
357 //ImageFrameTimeAxisGroup::set_selected_imageframe_item(ImageFrameView* ifv)
359 // if(selected_imageframe_item)
361 // selected_imageframe_item->set_selected(false, this) ;
364 // selected_imageframe_item = ifv ;
366 // if(!ifv->get_selected())
368 // selected_imageframe_item->set_selected(true, this) ;
374 * Sets the currently selected item upon this time axis to the named item
376 * @param item_id the name/id of the item to set selected
379 //ImageFrameTimeAxisGroup::set_selected_imageframe_item(std::string frame_id)
381 // selected_imageframe_item = get_named_imageframe_item(frame_id) ;
386 * Returns the currently selected item upon this time axis
388 * @return the currently selected item pon this time axis
391 // ImageFrameTimeAxisGroup::get_selected_imageframe_item()
393 // return(selected_imageframe_item) ;
399 * Returns whether this grou pis currently selected
401 * @returns true if this group is currently selected
404 ImageFrameTimeAxisGroup::get_selected() const
406 return(is_selected) ;
411 * Sets he selected state of this group
413 * @param yn set true if this group is selected, false otherwise
416 ImageFrameTimeAxisGroup::set_selected(bool yn)
423 //---------------------------------------------------------------------------------------//
424 // Handle time axis removal
427 * Handles the Removal of this VisualTimeAxis
428 * This _needs_ to be called to alert others of the removal properly, ie where the source
429 * of the removal came from.
431 * XXX Although im not too happy about this method of doing things, I cant think of a cleaner method
432 * just now to capture the source of the removal
434 * @param src the identity of the object that initiated the change
437 ImageFrameTimeAxisGroup::remove_this_group(void* src)
440 defer to idle loop, otherwise we'll delete this object
441 while we're still inside this function ...
443 Glib::signal_idle().connect(sigc::bind(ptr_fun(&ImageFrameTimeAxisGroup::idle_remove_this_group), this, src));
447 * Callback used to remove this group during the gtk idle loop
448 * This is used to avoid deleting the obejct while inside the remove_this_group
451 * @param group the ImageFrameTimeAxisGroup to remove
452 * @param src the identity of the object that initiated the change
455 ImageFrameTimeAxisGroup::idle_remove_this_group(ImageFrameTimeAxisGroup* group, void* src)
459 group->GroupRemoved(group->get_group_name(), src) ; /* EMIT_SIGNAL */