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 "region_selection.h"
30 #include "public_editor.h"
31 #include "gui_thread.h"
35 using namespace ARDOUR;
37 PBD::Signal1<void,ImageFrameTimeAxisGroup*> ImageFrameTimeAxisGroup::CatchDeletion;
39 //---------------------------------------------------------------------------------------//
40 // Constructor / Desctructor
43 * Constructs a new ImageFrameTimeAxisGroup.
45 * @param iftav the parent ImageFrameTimeAxis of this view helper
46 * @param group_id the unique name/id of this group
48 ImageFrameTimeAxisGroup::ImageFrameTimeAxisGroup(ImageFrameTimeAxisView& iftav, const string & group_id)
49 : _view_helper(iftav), _group_id(group_id)
51 selected_imageframe_item = 0;
54 ImageFrameView::CatchDeletion.connect (*this, boost::bind (&ImageFrameTimeAxisGroup::remove_imageframe_item, this, _1), gui_context());
59 * Responsible for destroying any Items that may have been added to this group
62 ImageFrameTimeAxisGroup::~ImageFrameTimeAxisGroup()
64 // Destroy all the ImageFramViews that we have
65 for(ImageFrameViewList::iterator iter = imageframe_views.begin(); iter != imageframe_views.end(); ++iter)
67 ImageFrameView* ifv = *iter;
69 ImageFrameViewList::iterator next = iter;
72 imageframe_views.erase(iter);
80 CatchDeletion; /* EMIT_SIGNAL */
84 //---------------------------------------------------------------------------------------//
85 // Name/Id Accessors/Mutators
88 * Set the name/Id of this group.
90 * @param new_name the new name of this group
91 * @param src the identity of the object that initiated the change
94 ImageFrameTimeAxisGroup::set_group_name(const string & new_name, void* src)
96 if(_group_id != new_name)
98 std::string temp_name = _group_id;
100 NameChanged(_group_id, temp_name, src); /* EMIT_SIGNAL */
105 * Returns the id of this group
106 * The group id must be unique upon a time axis
108 * @return the id of this group
111 ImageFrameTimeAxisGroup::get_group_name() const
117 //---------------------------------------------------------------------------------------//
121 * Sets the height of the time axis view and the item upon it
123 * @param height the new height
126 ImageFrameTimeAxisGroup::set_item_heights(gdouble h)
128 /* limit the values to something sane-ish */
129 if (h < 10.0 || h > 1000.0)
134 // set the heights of all the imaeg frame views within the group
135 for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); ++citer)
137 (*citer)->set_height(h);
144 * Sets the current samples per unit.
145 * this method tells each item upon the time axis of the change
147 * @param spu the new samples per canvas unit value
150 ImageFrameTimeAxisGroup::set_item_frames_per_pixel (double fpp)
156 for (ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); ++citer) {
157 (*citer)->set_frames_per_pixel (fpp);
164 * Sets the color of the items contained uopn this view helper
166 * @param color the new base color
169 ImageFrameTimeAxisGroup::apply_item_color(Gdk::Color& color)
171 region_color = color;
172 for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); citer++)
174 (*citer)->set_color (region_color);
180 //---------------------------------------------------------------------------------------//
181 // child ImageFrameView methods
184 * Adds an ImageFrameView to the list of items upon this time axis view helper
185 * the new ImageFrameView is returned
187 * @param item_id the unique id of the new item
188 * @param image_id the id/name of the image data we are usin
189 * @param start the position the new item should be placed upon the time line
190 * @param duration the duration the new item should be placed upon the timeline
191 * @param rgb_data the rgb data of the image
192 * @param width the original image width of the rgb_data (not the size to display)
193 * @param height the irigianl height of the rgb_data
194 * @param num_channels the number of channles within the rgb_data
195 * @param src the identity of the object that initiated the change
198 ImageFrameTimeAxisGroup::add_imageframe_item(const string & frame_id, framepos_t start, framecnt_t duration, unsigned char* rgb_data, uint32_t width, uint32_t height, uint32_t num_channels, void* src)
200 ImageFrameView* ifv = 0;
202 //check that there is not already an imageframe with that id
203 if(get_named_imageframe_item(frame_id) == 0)
205 ifv = new ImageFrameView(frame_id,
206 _view_helper.canvas_item()->property_parent(),
207 &(_view_helper.trackview()),
209 _view_helper.trackview().editor.get_current_zoom(),
218 imageframe_views.push_front(ifv);
219 ImageFrameAdded(ifv, src); /* EMIT_SIGNAL */
227 * Returns the named ImageFrameView or 0 if the named view does not exist on this view helper
229 * @param item_id the unique id of the item to search for
230 * @return the named ImageFrameView, or 0 if it is not held upon this view
233 ImageFrameTimeAxisGroup::get_named_imageframe_item(const string & frame_id)
235 ImageFrameView* ifv = 0;
237 for (ImageFrameViewList::const_iterator i = imageframe_views.begin(); i != imageframe_views.end(); ++i)
239 if (((ImageFrameView*)*i)->get_item_name() == frame_id)
241 ifv = ((ImageFrameView*)*i);
249 * Removes the currently selected ImageFrameView
251 * @param src the identity of the object that initiated the change
252 * @todo need to remoev this, the selected item within group is no longer
253 * used in favour of a time axis selected item
254 * @see add_imageframe_view
257 ImageFrameTimeAxisGroup::remove_selected_imageframe_item(void* src)
259 std::string frame_id;
261 if(selected_imageframe_item)
263 ImageFrameViewList::iterator i;
265 if((i = find(imageframe_views.begin(), imageframe_views.end(), selected_imageframe_item)) != imageframe_views.end())
267 imageframe_views.erase(i);
268 frame_id = selected_imageframe_item->get_item_name();
270 // note that we delete the item here
271 delete(selected_imageframe_item);
272 selected_imageframe_item = 0;
274 std::string track_id = _view_helper.trackview().name();
275 ImageFrameRemoved(track_id, _group_id, frame_id, src); /* EMIT_SIGNAL */
280 //cerr << "No Selected ImageFrame" << endl;
286 * Removes and returns the named ImageFrameView from the list of ImageFrameViews held by this view helper
288 * @param item_id the ImageFrameView unique id to remove
289 * @param src the identity of the object that initiated the change
290 * @see add_imageframe_view
293 ImageFrameTimeAxisGroup::remove_named_imageframe_item(const string & frame_id, void* src)
295 ImageFrameView* removed = 0;
297 for(ImageFrameViewList::iterator iter = imageframe_views.begin(); iter != imageframe_views.end(); ++iter)
299 ImageFrameView* tempItem = *iter;
300 if(tempItem->get_item_name() == frame_id)
303 imageframe_views.erase(iter);
305 if (removed == selected_imageframe_item)
307 selected_imageframe_item = 0;
310 std::string track_id = _view_helper.trackview().name();
311 ImageFrameRemoved(track_id, _group_id, frame_id, src); /* EMIT_SIGNAL */
313 // break from the for loop
323 * Removes ifv from the list of ImageFrameViews upon this TimeAxis.
324 * if ifv is not upon this TimeAxis, this method takes no action
326 * @param ifv the ImageFrameView to remove
329 ImageFrameTimeAxisGroup::remove_imageframe_item (ImageFrameView* ifv)
331 ENSURE_GUI_THREAD (*this, &ImageFrameTimeAxisGroup::remove_imageframe_item, ifv, src)
333 ImageFrameViewList::iterator i;
335 if((i = find (imageframe_views.begin(), imageframe_views.end(), ifv)) != imageframe_views.end()) {
336 imageframe_views.erase(i);
338 std::string frame_id = ifv->get_item_name();
339 std::string track_id = _view_helper.trackview().name();
340 ImageFrameRemoved(track_id, _group_id, frame_id, src); /* EMIT_SIGNAL */
344 //---------------------------------------------------------------------------------------//
345 // Selected group methods
348 * Sets the currently selected item upon this time axis
350 * @param ifv the item to set selected
353 //ImageFrameTimeAxisGroup::set_selected_imageframe_item(ImageFrameView* ifv)
355 // if(selected_imageframe_item)
357 // selected_imageframe_item->set_selected(false, this);
360 // selected_imageframe_item = ifv;
362 // if(!ifv->get_selected())
364 // selected_imageframe_item->set_selected(true, this);
370 * Sets the currently selected item upon this time axis to the named item
372 * @param item_id the name/id of the item to set selected
375 //ImageFrameTimeAxisGroup::set_selected_imageframe_item(std::string frame_id)
377 // selected_imageframe_item = get_named_imageframe_item(frame_id);
382 * Returns the currently selected item upon this time axis
384 * @return the currently selected item pon this time axis
387 // ImageFrameTimeAxisGroup::get_selected_imageframe_item()
389 // return(selected_imageframe_item);
395 * Returns whether this grou pis currently selected
397 * @returns true if this group is currently selected
400 ImageFrameTimeAxisGroup::get_selected() const
407 * Sets he selected state of this group
409 * @param yn set true if this group is selected, false otherwise
412 ImageFrameTimeAxisGroup::set_selected(bool yn)
419 //---------------------------------------------------------------------------------------//
420 // Handle time axis removal
423 * Handles the Removal of this VisualTimeAxis
424 * This _needs_ to be called to alert others of the removal properly, ie where the source
425 * of the removal came from.
427 * XXX Although im not too happy about this method of doing things, I cant think of a cleaner method
428 * just now to capture the source of the removal
430 * @param src the identity of the object that initiated the change
433 ImageFrameTimeAxisGroup::remove_this_group(void* src)
436 defer to idle loop, otherwise we'll delete this object
437 while we're still inside this function ...
439 Glib::signal_idle().connect(sigc::bind(ptr_fun(&ImageFrameTimeAxisGroup::idle_remove_this_group), this, src));
443 * Callback used to remove this group during the gtk idle loop
444 * This is used to avoid deleting the obejct while inside the remove_this_group
447 * @param group the ImageFrameTimeAxisGroup to remove
448 * @param src the identity of the object that initiated the change
451 ImageFrameTimeAxisGroup::idle_remove_this_group(ImageFrameTimeAxisGroup* group, void* src)
455 group->GroupRemoved(group->get_group_name(), src); /* EMIT_SIGNAL */