462 lines
12 KiB
C++
462 lines
12 KiB
C++
/*
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Copyright (C) 2003 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#include <algorithm>
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#include <gtkmm.h>
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#include <gtkmm2ext/gtk_ui.h>
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#include "imageframe_time_axis_group.h"
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#include "imageframe_time_axis_view.h"
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#include "imageframe_view.h"
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#include "imageframe_time_axis.h"
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#include "canvas-simplerect.h"
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#include "region_selection.h"
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#include "public_editor.h"
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#include "gui_thread.h"
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#include "i18n.h"
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using namespace ARDOUR ;
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//---------------------------------------------------------------------------------------//
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// Constructor / Desctructor
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/**
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* Constructs a new ImageFrameTimeAxisGroup.
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*
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* @param iftav the parent ImageFrameTimeAxis of this view helper
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* @param group_id the unique name/id of this group
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*/
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ImageFrameTimeAxisGroup::ImageFrameTimeAxisGroup(ImageFrameTimeAxisView& iftav, std::string group_id)
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: _view_helper(iftav), _group_id(group_id)
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{
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selected_imageframe_item = 0 ;
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is_selected = false ;
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}
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/**
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* Destructor
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* Responsible for destroying any Items that may have been added to this group
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*
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*/
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ImageFrameTimeAxisGroup::~ImageFrameTimeAxisGroup()
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{
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// Destroy all the ImageFramViews that we have
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for(ImageFrameViewList::iterator iter = imageframe_views.begin(); iter != imageframe_views.end(); ++iter)
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{
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ImageFrameView* ifv = *iter ;
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ImageFrameViewList::iterator next = iter ;
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next++ ;
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imageframe_views.erase(iter) ;
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delete ifv ;
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ifv = 0 ;
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iter = next ;
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}
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GoingAway() ; /* EMIT_SIGNAL */
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}
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//---------------------------------------------------------------------------------------//
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// Name/Id Accessors/Mutators
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/**
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* Set the name/Id of this group.
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*
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* @param new_name the new name of this group
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* @param src the identity of the object that initiated the change
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*/
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void
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ImageFrameTimeAxisGroup::set_group_name(std::string new_name, void* src)
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{
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if(_group_id != new_name)
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{
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std::string temp_name = _group_id ;
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_group_id = new_name ;
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NameChanged(_group_id, temp_name, src) ; /* EMIT_SIGNAL */
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}
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}
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/**
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* Returns the id of this group
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* The group id must be unique upon a time axis
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*
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* @return the id of this group
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*/
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std::string
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ImageFrameTimeAxisGroup::get_group_name() const
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{
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return(_group_id) ;
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}
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//---------------------------------------------------------------------------------------//
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// ui methods & data
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/**
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* Sets the height of the time axis view and the item upon it
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*
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* @param height the new height
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*/
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int
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ImageFrameTimeAxisGroup::set_item_heights(gdouble h)
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{
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/* limit the values to something sane-ish */
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if (h < 10.0 || h > 1000.0)
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{
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return(-1) ;
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}
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// set the heights of all the imaeg frame views within the group
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for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); ++citer)
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{
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(*citer)->set_height(h) ;
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}
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return(0) ;
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}
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/**
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* Sets the current samples per unit.
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* this method tells each item upon the time axis of the change
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*
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* @param spu the new samples per canvas unit value
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*/
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int
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ImageFrameTimeAxisGroup::set_item_samples_per_units(gdouble spp)
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{
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if(spp < 1.0)
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{
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return(-1) ;
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}
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for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); ++citer)
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{
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(*citer)->set_samples_per_unit(spp) ;
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}
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return(0) ;
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}
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/**
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* Sets the color of the items contained uopn this view helper
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*
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* @param color the new base color
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*/
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void
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ImageFrameTimeAxisGroup::apply_item_color(GdkColor& color)
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{
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region_color = color ;
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for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); citer++)
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{
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(*citer)->set_color (region_color) ;
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}
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}
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//---------------------------------------------------------------------------------------//
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// child ImageFrameView methods
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/**
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* Adds an ImageFrameView to the list of items upon this time axis view helper
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* the new ImageFrameView is returned
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*
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* @param item_id the unique id of the new item
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* @param image_id the id/name of the image data we are usin
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* @param start the position the new item should be placed upon the time line
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* @param duration the duration the new item should be placed upon the timeline
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* @param rgb_data the rgb data of the image
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* @param width the original image width of the rgb_data (not the size to display)
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* @param height the irigianl height of the rgb_data
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* @param num_channels the number of channles within the rgb_data
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* @param src the identity of the object that initiated the change
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*/
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ImageFrameView*
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ImageFrameTimeAxisGroup::add_imageframe_item(std::string frame_id, jack_nframes_t start, jack_nframes_t duration, unsigned char* rgb_data, uint32_t width, uint32_t height, uint32_t num_channels, void* src)
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{
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ImageFrameView* ifv = 0 ;
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//check that there is not already an imageframe with that id
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if(get_named_imageframe_item(frame_id) == 0)
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{
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ifv = new ImageFrameView(frame_id,
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GNOME_CANVAS_GROUP(_view_helper.canvas_item()),
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&(_view_helper.trackview()),
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this,
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_view_helper.trackview().editor.get_current_zoom(),
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region_color,
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start,
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duration,
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rgb_data,
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width,
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height,
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num_channels) ;
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imageframe_views.push_front(ifv) ;
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ifv->GoingAway.connect(bind(mem_fun(*this,&ImageFrameTimeAxisGroup::remove_imageframe_item), (void*)this)) ;
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ImageFrameAdded(ifv, src) ; /* EMIT_SIGNAL */
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}
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return(ifv) ;
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}
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/**
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* Returns the named ImageFrameView or 0 if the named view does not exist on this view helper
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*
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* @param item_id the unique id of the item to search for
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* @return the named ImageFrameView, or 0 if it is not held upon this view
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*/
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ImageFrameView*
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ImageFrameTimeAxisGroup::get_named_imageframe_item(std::string frame_id)
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{
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ImageFrameView* ifv = 0 ;
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for (ImageFrameViewList::const_iterator i = imageframe_views.begin(); i != imageframe_views.end(); ++i)
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{
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if (((ImageFrameView*)*i)->get_item_name() == frame_id)
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{
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ifv = ((ImageFrameView*)*i) ;
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break ;
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}
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}
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return(ifv) ;
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}
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/**
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* Removes the currently selected ImageFrameView
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*
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* @param src the identity of the object that initiated the change
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* @todo need to remoev this, the selected item within group is no longer
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* used in favour of a time axis selected item
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* @see add_imageframe_view
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*/
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void
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ImageFrameTimeAxisGroup::remove_selected_imageframe_item(void* src)
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{
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std::string frame_id ;
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if(selected_imageframe_item)
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{
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ImageFrameViewList::iterator i ;
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if((i = find(imageframe_views.begin(), imageframe_views.end(), selected_imageframe_item)) != imageframe_views.end())
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{
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imageframe_views.erase(i) ;
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frame_id = selected_imageframe_item->get_item_name() ;
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// note that we delete the item here
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delete(selected_imageframe_item) ;
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selected_imageframe_item = 0 ;
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std::string track_id = _view_helper.trackview().name() ;
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ImageFrameRemoved(track_id, _group_id, frame_id, src) ; /* EMIT_SIGNAL */
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}
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}
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else
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{
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//cerr << "No Selected ImageFrame" << endl ;
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}
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}
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/**
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* Removes and returns the named ImageFrameView from the list of ImageFrameViews held by this view helper
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*
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* @param item_id the ImageFrameView unique id to remove
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* @param src the identity of the object that initiated the change
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* @see add_imageframe_view
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*/
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ImageFrameView*
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ImageFrameTimeAxisGroup::remove_named_imageframe_item(std::string frame_id, void* src)
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{
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ImageFrameView* removed = 0 ;
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for(ImageFrameViewList::iterator iter = imageframe_views.begin(); iter != imageframe_views.end(); ++iter)
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{
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ImageFrameView* tempItem = *iter ;
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if(tempItem->get_item_name() == frame_id)
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{
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removed = tempItem ;
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imageframe_views.erase(iter) ;
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if (removed == selected_imageframe_item)
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{
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selected_imageframe_item = 0 ;
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}
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std::string track_id = _view_helper.trackview().name() ;
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ImageFrameRemoved(track_id, _group_id, frame_id, src) ; /* EMIT_SIGNAL */
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// break from the for loop
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break ;
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}
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iter++ ;
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}
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return(removed) ;
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}
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/**
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* Removes ifv from the list of ImageFrameViews upon this TimeAxis.
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* if ifv is not upon this TimeAxis, this method takes no action
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*
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* @param ifv the ImageFrameView to remove
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*/
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void
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ImageFrameTimeAxisGroup::remove_imageframe_item(ImageFrameView* ifv, void* src)
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{
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ENSURE_GUI_THREAD(bind (mem_fun(*this, &ImageFrameTimeAxisGroup::remove_imageframe_item), ifv, src));
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ImageFrameViewList::iterator i;
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if((i = find (imageframe_views.begin(), imageframe_views.end(), ifv)) != imageframe_views.end())
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{
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imageframe_views.erase(i) ;
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std::string frame_id = ifv->get_item_name() ;
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std::string track_id = _view_helper.trackview().name() ;
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ImageFrameRemoved(track_id, _group_id, frame_id, src) ; /* EMIT_SIGNAL */
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}
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}
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//---------------------------------------------------------------------------------------//
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// Selected group methods
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/**
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* Sets the currently selected item upon this time axis
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*
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* @param ifv the item to set selected
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*/
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//void
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//ImageFrameTimeAxisGroup::set_selected_imageframe_item(ImageFrameView* ifv)
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//{
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// if(selected_imageframe_item)
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// {
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// selected_imageframe_item->set_selected(false, this) ;
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// }
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//
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// selected_imageframe_item = ifv ;
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//
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// if(!ifv->get_selected())
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// {
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// selected_imageframe_item->set_selected(true, this) ;
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// }
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//}
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/**
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* Sets the currently selected item upon this time axis to the named item
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*
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* @param item_id the name/id of the item to set selected
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*/
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//void
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//ImageFrameTimeAxisGroup::set_selected_imageframe_item(std::string frame_id)
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//{
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// selected_imageframe_item = get_named_imageframe_item(frame_id) ;
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//}
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/**
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* Returns the currently selected item upon this time axis
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*
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* @return the currently selected item pon this time axis
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*/
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// ImageFrameView*
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// ImageFrameTimeAxisGroup::get_selected_imageframe_item()
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// {
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// return(selected_imageframe_item) ;
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// }
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/**
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* Returns whether this grou pis currently selected
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*
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* @returns true if this group is currently selected
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*/
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bool
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ImageFrameTimeAxisGroup::get_selected() const
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{
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return(is_selected) ;
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}
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/**
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* Sets he selected state of this group
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*
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* @param yn set true if this group is selected, false otherwise
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*/
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void
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ImageFrameTimeAxisGroup::set_selected(bool yn)
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{
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is_selected = yn ;
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}
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//---------------------------------------------------------------------------------------//
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// Handle time axis removal
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/**
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* Handles the Removal of this VisualTimeAxis
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* This _needs_ to be called to alert others of the removal properly, ie where the source
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* of the removal came from.
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*
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* XXX Although im not too happy about this method of doing things, I cant think of a cleaner method
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* just now to capture the source of the removal
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*
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* @param src the identity of the object that initiated the change
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*/
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void
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ImageFrameTimeAxisGroup::remove_this_group(void* src)
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{
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/*
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defer to idle loop, otherwise we'll delete this object
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while we're still inside this function ...
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*/
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Gtk::Main::idle.connect(bind(mem_fun(&ImageFrameTimeAxisGroup::idle_remove_this_group), this, src));
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}
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/**
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* Callback used to remove this group during the gtk idle loop
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* This is used to avoid deleting the obejct while inside the remove_this_group
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* method
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*
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* @param group the ImageFrameTimeAxisGroup to remove
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* @param src the identity of the object that initiated the change
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*/
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gint
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ImageFrameTimeAxisGroup::idle_remove_this_group(ImageFrameTimeAxisGroup* group, void* src)
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{
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delete group ;
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group = 0 ;
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group->GroupRemoved(group->get_group_name(), src) ; /* EMIT_SIGNAL */
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return(false) ;
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}
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