1 files changed, 461 insertions, 0 deletions
diff --git a/gtk2_ardour/imageframe_time_axis_group.cc b/gtk2_ardour/imageframe_time_axis_group.cc
new file mode 100644
index 0000000000..228ce8bb2c
--- /dev/null
+++ b/gtk2_ardour/imageframe_time_axis_group.cc
@@ -0,0 +1,461 @@
+/*
+    Copyright (C) 2003 Paul Davis 
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+#include <algorithm>
+
+#include <gtk--.h>
+#include <gtkmmext/gtk_ui.h>
+
+#include "imageframe_time_axis_group.h"
+#include "imageframe_time_axis_view.h"
+#include "imageframe_view.h"
+#include "imageframe_time_axis.h"
+#include "canvas-simplerect.h"
+#include "region_selection.h"
+#include "public_editor.h"
+#include "gui_thread.h"
+
+#include "i18n.h"
+
+using namespace ARDOUR ;
+
+//---------------------------------------------------------------------------------------//
+// Constructor / Desctructor
+		
+/**
+ * Constructs a new ImageFrameTimeAxisGroup.
+ *
+ * @param iftav the parent ImageFrameTimeAxis of this view helper
+ * @param group_id the unique name/id of this group
+ */
+ImageFrameTimeAxisGroup::ImageFrameTimeAxisGroup(ImageFrameTimeAxisView& iftav, std::string group_id)
+	: _view_helper(iftav), _group_id(group_id)
+{
+	selected_imageframe_item = 0 ;
+	is_selected = false ;
+}
+
+/**
+ * Destructor
+ * Responsible for destroying any Items that may have been added to this group
+ *
+ */
+ImageFrameTimeAxisGroup::~ImageFrameTimeAxisGroup()
+{
+	// Destroy all the ImageFramViews that we have
+	for(ImageFrameViewList::iterator iter = imageframe_views.begin(); iter != imageframe_views.end(); ++iter)
+	{
+		ImageFrameView* ifv = *iter ;
+		
+		ImageFrameViewList::iterator next = iter ;
+		next++ ;
+		
+		imageframe_views.erase(iter) ;
+
+		delete ifv ;
+		ifv = 0 ;
+		
+		iter = next ;
+	}
+	
+	 GoingAway() ; /* EMIT_SIGNAL */
+}
+
+
+//---------------------------------------------------------------------------------------//
+// Name/Id Accessors/Mutators
+		
+/**
+ * Set the name/Id of this group.
+ *
+ * @param new_name the new name of this group
+ * @param src the identity of the object that initiated the change
+ */
+void
+ImageFrameTimeAxisGroup::set_group_name(std::string new_name, void* src)
+{
+	if(_group_id != new_name)
+	{
+		std::string temp_name = _group_id ;
+		_group_id = new_name ;
+		 NameChanged(_group_id, temp_name, src) ; /* EMIT_SIGNAL */
+	}
+}
+
+/**
+ * Returns the id of this group
+ * The group id must be unique upon a time axis
+ *
+ * @return the id of this group
+ */
+std::string
+ImageFrameTimeAxisGroup::get_group_name() const
+{
+	return(_group_id) ;
+}
+
+
+//---------------------------------------------------------------------------------------//
+// ui methods & data
+
+/**
+ * Sets the height of the time axis view and the item upon it
+ *
+ * @param height the new height
+ */
+int
+ImageFrameTimeAxisGroup::set_item_heights(gdouble h)
+{
+	/* limit the values to something sane-ish */
+	if (h < 10.0 || h > 1000.0)
+	{
+		return(-1) ;
+	}
+
+	// set the heights of all the imaeg frame views within the group
+	for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); ++citer)
+	{
+		(*citer)->set_height(h) ;
+	}
+
+	return(0) ;
+}
+
+/**
+ * Sets the current samples per unit.
+ * this method tells each item upon the time axis of the change
+ * 
+ * @param spu the new samples per canvas unit value
+ */
+int 
+ImageFrameTimeAxisGroup::set_item_samples_per_units(gdouble spp)
+{
+	if(spp < 1.0)
+	{
+		return(-1) ;
+	}
+
+	for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); ++citer)
+	{
+		(*citer)->set_samples_per_unit(spp) ;
+	}
+	
+	return(0) ;
+}
+
+/**
+ * Sets the color of the items contained uopn this view helper
+ *
+ * @param color the new base color
+ */
+void
+ImageFrameTimeAxisGroup::apply_item_color(GdkColor& color)
+{
+	region_color = color ;
+	for(ImageFrameViewList::const_iterator citer = imageframe_views.begin(); citer != imageframe_views.end(); citer++)
+	{
+		(*citer)->set_color (region_color) ;
+	}
+}
+
+
+
+//---------------------------------------------------------------------------------------//
+// child ImageFrameView methods
+
+/**
+ * Adds an ImageFrameView to the list of items upon this time axis view helper
+ * the new ImageFrameView is returned
+ *
+ * @param item_id the unique id of the new item
+ * @param image_id the id/name of the image data we are usin
+ * @param start the position the new item should be placed upon the time line
+ * @param duration the duration the new item should be placed upon the timeline
+ * @param rgb_data the rgb data of the image
+ * @param width the original image width of the rgb_data (not the size to display)
+ * @param height the irigianl height of the rgb_data
+ * @param num_channels the number of channles within the rgb_data
+ * @param src the identity of the object that initiated the change
+ */
+ImageFrameView*
+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)
+{
+	ImageFrameView* ifv = 0 ;
+	
+	//check that there is not already an imageframe with that id
+	if(get_named_imageframe_item(frame_id) == 0)
+	{
+		ifv = new ImageFrameView(frame_id,
+			GTK_CANVAS_GROUP(_view_helper.canvas_item()),
+			&(_view_helper.trackview()),
+			this,
+			_view_helper.trackview().editor.get_current_zoom(),
+			region_color,
+			start,
+			duration,
+			rgb_data,
+			width,
+			height,
+			num_channels) ;
+
+		imageframe_views.push_front(ifv) ;
+	
+		ifv->GoingAway.connect(bind(slot (*this,&ImageFrameTimeAxisGroup::remove_imageframe_item), (void*)this)) ;
+	
+		 ImageFrameAdded(ifv, src) ; /* EMIT_SIGNAL */
+	}
+
+	return(ifv) ;
+}
+
+
+/**
+ * Returns the named ImageFrameView or 0 if the named view does not exist on this view helper
+ *
+ * @param item_id the unique id of the item to search for
+ * @return the named ImageFrameView, or 0 if it is not held upon this view
+ */
+ImageFrameView*
+ImageFrameTimeAxisGroup::get_named_imageframe_item(std::string frame_id)
+{
+	ImageFrameView* ifv =  0 ;
+	
+	for (ImageFrameViewList::const_iterator i = imageframe_views.begin(); i != imageframe_views.end(); ++i)
+	{
+		if (((ImageFrameView*)*i)->get_item_name() == frame_id)
+		{
+			ifv = ((ImageFrameView*)*i) ;
+			break ;
+		}
+	}
+	return(ifv) ;
+}
+		
+/**
+ * Removes the currently selected ImageFrameView
+ *
+ * @param src the identity of the object that initiated the change
+ * @todo need to remoev this, the selected item within group is no longer
+ *       used in favour of a time axis selected item
+ * @see add_imageframe_view
+ */
+void
+ImageFrameTimeAxisGroup::remove_selected_imageframe_item(void* src)
+{
+	std::string frame_id ;
+	
+	if(selected_imageframe_item)
+	{
+		ImageFrameViewList::iterator i ;
+		
+		if((i = find(imageframe_views.begin(), imageframe_views.end(), selected_imageframe_item)) != imageframe_views.end())
+		{
+			imageframe_views.erase(i) ;
+			frame_id = selected_imageframe_item->get_item_name() ;
+			
+			// note that we delete the item here
+			delete(selected_imageframe_item) ;
+			selected_imageframe_item = 0 ;
+			
+			std::string track_id = _view_helper.trackview().name() ;
+			 ImageFrameRemoved(track_id, _group_id, frame_id, src) ; /* EMIT_SIGNAL */
+		}
+	}
+	else
+	{
+		//cerr << "No Selected ImageFrame" << endl ;
+	}
+}
+
+		
+/**
+ * Removes and returns the named ImageFrameView from the list of ImageFrameViews held by this view helper
+ *
+ * @param item_id the ImageFrameView unique id to remove
+ * @param src the identity of the object that initiated the change
+ * @see add_imageframe_view
+ */
+ImageFrameView*
+ImageFrameTimeAxisGroup::remove_named_imageframe_item(std::string frame_id, void* src)
+{
+	ImageFrameView* removed = 0 ;
+	
+	for(ImageFrameViewList::iterator iter = imageframe_views.begin(); iter != imageframe_views.end(); ++iter)
+	{
+		ImageFrameView* tempItem = *iter ;
+		if(tempItem->get_item_name() == frame_id)
+		{
+			removed = tempItem ; 
+			imageframe_views.erase(iter) ;
+			
+			if (removed == selected_imageframe_item)
+			{
+				selected_imageframe_item = 0 ;
+			}
+			
+			std::string track_id = _view_helper.trackview().name() ;
+			 ImageFrameRemoved(track_id, _group_id, frame_id, src) ; /* EMIT_SIGNAL */
+			
+			// break from the for loop
+			break ;
+		}
+		iter++ ;
+	}
+	
+	return(removed) ;
+}
+
+/**
+ * Removes ifv from the list of ImageFrameViews upon this TimeAxis.
+ * if ifv is not upon this TimeAxis, this method takes no action
+ *
+ * @param ifv the ImageFrameView to remove
+ */
+void
+ImageFrameTimeAxisGroup::remove_imageframe_item(ImageFrameView* ifv, void* src)
+{
+	ENSURE_GUI_THREAD(bind (slot (*this, &ImageFrameTimeAxisGroup::remove_imageframe_item), ifv, src));
+	
+	ImageFrameViewList::iterator i;
+	if((i = find (imageframe_views.begin(), imageframe_views.end(), ifv)) != imageframe_views.end())
+	{
+		imageframe_views.erase(i) ;
+		
+		std::string frame_id = ifv->get_item_name() ;
+		std::string track_id = _view_helper.trackview().name() ;
+		 ImageFrameRemoved(track_id, _group_id, frame_id, src) ; /* EMIT_SIGNAL */
+	}
+}
+
+//---------------------------------------------------------------------------------------//
+// Selected group methods
+
+/**
+ * Sets the currently selected item upon this time axis
+ *
+ * @param ifv the item to set selected
+ */
+//void
+//ImageFrameTimeAxisGroup::set_selected_imageframe_item(ImageFrameView* ifv)
+//{
+//	if(selected_imageframe_item)
+//	{
+//		selected_imageframe_item->set_selected(false, this) ;
+//	}
+//	
+//	selected_imageframe_item = ifv ;
+//	
+//	if(!ifv->get_selected())
+//	{
+//		selected_imageframe_item->set_selected(true, this) ;
+//	}
+//}
+
+
+/**
+ * Sets the currently selected item upon this time axis to the named item
+ *
+ * @param item_id the name/id of the item to set selected
+ */
+//void
+//ImageFrameTimeAxisGroup::set_selected_imageframe_item(std::string frame_id)
+//{
+//	selected_imageframe_item = get_named_imageframe_item(frame_id) ;
+//}
+
+
+/**
+ * Returns the currently selected item upon this time axis
+ *
+ * @return the currently selected item pon this time axis
+ */
+// ImageFrameView*
+// ImageFrameTimeAxisGroup::get_selected_imageframe_item()
+// {
+	// return(selected_imageframe_item) ;
+// }
+
+
+
+/**
+ * Returns whether this grou pis currently selected
+ *
+ * @returns true if this group is currently selected
+ */
+bool
+ImageFrameTimeAxisGroup::get_selected() const
+{
+	return(is_selected) ;
+}
+
+
+/**
+ * Sets he selected state of this group
+ *
+ * @param yn set true if this group is selected, false otherwise
+ */
+void
+ImageFrameTimeAxisGroup::set_selected(bool yn)
+{
+	is_selected = yn ;
+}
+
+
+
+//---------------------------------------------------------------------------------------//
+// Handle time axis removal
+
+/**
+ * Handles the Removal of this VisualTimeAxis
+ * This _needs_ to be called to alert others of the removal properly, ie where the source
+ * of the removal came from.
+ *
+ * XXX Although im not too happy about this method of doing things, I cant think of a cleaner method
+ *     just now to capture the source of the removal
+ *
+ * @param src the identity of the object that initiated the change
+ */
+void
+ImageFrameTimeAxisGroup::remove_this_group(void* src)
+{
+	/*
+	   defer to idle loop, otherwise we'll delete this object
+	   while we're still inside this function ...
+	*/
+	Gtk::Main::idle.connect(bind(slot(&ImageFrameTimeAxisGroup::idle_remove_this_group), this, src));
+}
+
+/**
+ * Callback used to remove this group during the gtk idle loop
+ * This is used to avoid deleting the obejct while inside the remove_this_group
+ * method
+ *
+ * @param group the ImageFrameTimeAxisGroup to remove
+ * @param src the identity of the object that initiated the change
+ */
+gint
+ImageFrameTimeAxisGroup::idle_remove_this_group(ImageFrameTimeAxisGroup* group, void* src)
+{
+	delete group ;
+	group = 0 ;
+	 group->GroupRemoved(group->get_group_name(), src) ; /* EMIT_SIGNAL */
+	return(false) ;
+}
+