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.
25 #include <gtkmm2ext/gtk_ui.h>
27 #include "imageframe_time_axis.h"
28 #include "imageframe_time_axis_group.h"
29 #include "marker_time_axis.h"
30 #include "marker_time_axis_view.h"
31 #include "public_editor.h"
33 #include "imageframe_view.h"
34 #include "imageframe.h"
35 #include "canvas_impl.h"
36 #include "gui_thread.h"
38 using namespace sigc ;
39 using namespace ARDOUR ;
42 sigc::signal<void,ImageFrameView*> ImageFrameView::GoingAway;
45 * Constructs a new ImageFrameView upon the canvas
47 * @param item_id unique id of this item
48 * @param parent the parent canvas item
49 * @param tv the time axis view that this item is to be placed upon
50 * @param group the ImageFrameGroup that this item is a member of
51 * @param spu the current samples per canvas unit
52 * @param start the start frame ogf this item
53 * @param duration the duration of this item
54 * @param rgb_data the rgb data of the image
55 * @param width the width of the original rgb_data image data
56 * @param height the width of the origianl rgb_data image data
57 * @param num_channels the number of color channels within rgb_data
59 ImageFrameView::ImageFrameView(const string & item_id,
60 ArdourCanvas::Group *parent,
61 ImageFrameTimeAxis* tv,
62 ImageFrameTimeAxisGroup* item_group,
64 Gdk::Color& basic_color,
67 unsigned char* rgb_data,
70 uint32_t num_channels)
71 : TimeAxisViewItem(item_id, *parent, *tv, spu, basic_color, start, duration,
72 TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
73 TimeAxisViewItem::ShowNameHighlight|
74 TimeAxisViewItem::ShowFrame|
75 TimeAxisViewItem::ShowHandles))
78 the_parent_group = item_group ;
79 set_name_text(item_id) ;
81 image_data_width = width ;
82 image_data_height = height ;
83 image_data_num_channels = num_channels ;
85 //This should be art_free'd once the ArtPixBuf is destroyed - this should happen when we destroy the imageframe canvas item
86 unsigned char* the_rgb_data = (unsigned char*) art_alloc(width*height*num_channels) ;
87 memcpy(the_rgb_data, rgb_data, (width*height*num_channels)) ;
90 pbuf = art_pixbuf_new_rgba(the_rgb_data, width, height, (num_channels * width));
93 //calculate our image width based on the track height
94 double im_ratio = (double)width/(double)height ;
95 double im_width = ((double)(trackview.height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE) * im_ratio) ;
97 imageframe = new ImageFrame (*group, pbuf, 1.0, 1.0, ANCHOR_NW, im_width, (trackview.height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE));
99 frame_handle_start->signal_event().connect (bind (mem_fun (trackview.editor, &PublicEditor::canvas_imageframe_start_handle_event), frame_handle_start, this));
100 frame_handle_end->signal_event().connect (bind (mem_fun (trackview.editor, &PublicEditor::canvas_imageframe_end_handle_event), frame_handle_end, this));
101 group->signal_event().connect (bind (mem_fun (trackview.editor, &PublicEditor::canvas_imageframe_item_view_event), imageframe, this));
103 frame_handle_start->raise_to_top();
104 frame_handle_end->raise_to_top();
106 set_position(start, this) ;
107 set_duration(duration, this) ;
112 * Reposible for removing and destroying all marker items associated with this item
114 ImageFrameView::~ImageFrameView()
118 // destroy any marker items we have associated with this item
120 for(MarkerViewList::iterator iter = marker_view_list.begin(); iter != marker_view_list.end(); ++iter)
122 MarkerView* mv = (*iter) ;
124 MarkerViewList::iterator next = iter ;
127 // remove the item from our marker list
128 // the current iterator becomes invalid after this point, so we cannot call next upon it
129 // luckily enough, we already have next
130 marker_view_list.erase(iter) ;
132 // remove the item from the marker time axis
133 MarkerTimeAxisView* mtav = dynamic_cast<MarkerTimeAxis*>(&mv->get_time_axis_view())->get_view() ;
136 mtav->remove_marker_view(mv, this) ;
139 mv->set_marked_item(0) ;
143 // set our iterator to next, as we have invalided the current iterator with the call to erase
147 // if we are the currently selected item withi the parent track, we need to se-select
150 if(the_parent_group->get_view().get_selected_imageframe_view() == this)
152 the_parent_group->get_view().clear_selected_imageframe_item(false) ;
164 //---------------------------------------------------------------------------------------//
165 // Position and duration Accessors/Mutators
168 * Set the position of this item to the specified value
170 * @param pos the new position
171 * @param src the identity of the object that initiated the change
172 * @return true if the position change was a success, false otherwise
175 ImageFrameView::set_position(nframes_t pos, void* src, double* delta)
177 nframes_t old_pos = frame_position ;
179 // do the standard stuff
180 bool ret = TimeAxisViewItem::set_position(pos, src, delta) ;
182 // everything went ok with the standard stuff?
184 /* move each of our associated markers with this ImageFrameView */
185 for (MarkerViewList::iterator i = marker_view_list.begin(); i != marker_view_list.end(); ++i)
187 // calculate the offset of the marker
188 MarkerView* mv = (MarkerView*)*i ;
189 nframes_t marker_old_pos = mv->get_position() ;
191 mv->set_position(pos + (marker_old_pos - old_pos), src) ;
199 * Sets the duration of this item
201 * @param dur the new duration of this item
202 * @param src the identity of the object that initiated the change
203 * @return true if the duration change was succesful, false otherwise
206 ImageFrameView::set_duration(nframes_t dur, void* src)
208 /* do the standard stuff */
209 bool ret = TimeAxisViewItem::set_duration(dur, src) ;
211 // eveything went ok with the standard stuff?
214 /* handle setting the sizes of our canvas itesm based on the new duration */
215 imageframe->property_drawwidth() = trackview.editor.frame_to_pixel(get_duration());
221 //---------------------------------------------------------------------------------------//
222 // Parent Component Methods
225 * Sets the parent ImageFrameTimeAxisGroup of thie item
226 * each Item must be part of exactly one group (or 'scene') upon the timeline
228 * @param group the new parent group
231 ImageFrameView::set_time_axis_group(ImageFrameTimeAxisGroup* group)
233 the_parent_group = group ;
237 * Returns the parent group of this item
239 * @return the parent group of this item
241 ImageFrameTimeAxisGroup*
242 ImageFrameView::get_time_axis_group()
244 return(the_parent_group) ;
248 //---------------------------------------------------------------------------------------//
252 * Set the height of this item
254 * @param h the new height
257 ImageFrameView::set_height (gdouble h)
259 // set the image size
260 // @todo might have to re-get the image data, for a large height...hmmm.
261 double im_ratio = (double)image_data_width/(double)image_data_height ;
263 imageframe->property_width() = (h - TimeAxisViewItem::NAME_Y_OFFSET) * im_ratio;
264 imageframe->property_height() = h - TimeAxisViewItem::NAME_Y_OFFSET;
266 frame->raise_to_top();
267 imageframe->raise_to_top();
268 name_highlight->raise_to_top();
269 name_text->raise_to_top();
270 frame_handle_start->raise_to_top();
271 frame_handle_end->raise_to_top();
273 name_text->property_y() = h - TimeAxisViewItem::NAME_Y_OFFSET;
274 frame->property_y2() = h;
276 name_highlight->property_y1() = (gdouble) h - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE;
277 name_highlight->property_y2() = (gdouble) h - 1.0;
281 //---------------------------------------------------------------------------------------//
282 // MarkerView methods
285 * Adds a markerView to the list of marker views associated with this item
287 * @param item the marker item to add
288 * @param src the identity of the object that initiated the change
291 ImageFrameView::add_marker_view_item(MarkerView* item, void* src)
293 marker_view_list.push_back(item) ;
295 item->GoingAway.connect(bind(mem_fun(*this, &ImageFrameView::remove_marker_view_item), (void*)this));
297 MarkerViewAdded(item, src) ; /* EMIT_SIGNAL */
301 * Removes the named marker view from the list of marker view associated with this item
302 * The Marker view is not destroyed on removal, so the caller must handle the item themself
304 * @param markId the id/name of the item to remove
305 * @param src the identity of the object that initiated the change
306 * @return the removed marker item
309 ImageFrameView::remove_named_marker_view_item(const string & markerId, void* src)
312 MarkerViewList::iterator i = marker_view_list.begin() ;
314 while(i != marker_view_list.end())
316 if (((MarkerView*)*i)->get_item_name() == markerId)
320 marker_view_list.erase(i) ;
322 MarkerViewRemoved(mv,src) ; /* EMIT_SIGNAL */
324 // iterator is now invalid, but since we should only ever have
325 // one item with the specified name, things are ok, and we can
326 // break from the while loop
336 * Removes item from the list of marker views assocaited with this item
337 * This method will do nothing if item if not assiciated with this item
339 * @param item the item to remove
340 * @param src the identity of the object that initiated the change
343 ImageFrameView::remove_marker_view_item(MarkerView* mv, void* src)
345 ENSURE_GUI_THREAD(bind (mem_fun(*this, &ImageFrameView::remove_marker_view_item), mv, src));
347 MarkerViewList::iterator i ;
349 if((i = find (marker_view_list.begin(), marker_view_list.end(), mv)) != marker_view_list.end()) {
350 marker_view_list.erase(i) ;
351 MarkerViewRemoved (mv, src) ; /* EMIT_SIGNAL */
356 * Determines if the named marker is one of those associated with this item
358 * @param markId the id/name of the item to search for
361 ImageFrameView::has_marker_view_item(const string & mname)
363 bool result = false ;
365 for (MarkerViewList::const_iterator ci = marker_view_list.begin(); ci != marker_view_list.end(); ++ci)
367 if (((MarkerView*)*ci)->get_item_name() == mname)
371 // found the item, so we can break the for loop