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livetrax/gtk2_ardour/imageframe_time_axis.h

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/*
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.
*/
#ifndef __ardour_imageframe_time_axis_h__
#define __ardour_imageframe_time_axis_h__
#include <list>
//#include <libgnomecanvas.h>
#include "ardour_dialog.h"
#include "enums.h"
#include "time_axis_view.h"
#include "canvas.h"
#include "visual_time_axis.h"
namespace ARDOUR
{
class Session ;
}
namespace Gtk {
class Menu;
}
class PublicEditor ;
class ImageFrameView ;
class ImageFrameTimeAxisView ;
class MarkersTimeAxisView ;
class MarkerTimeAxis;
/**
* ImageFrameTimeAxis defines a visual time axis view for holding and arranging image items.
*
*/
class ImageFrameTimeAxis : public VisualTimeAxis
{
public:
//---------------------------------------------------------------------------------------//
// Constructor / Desctructor
/**
* Constructs a new ImageFrameTimeAxis.
*
* @param track_id the track name/id
* @param ed the PublicEditor
* @param sess the current session
* @param canvas the parent canvas item
*/
ImageFrameTimeAxis(const std::string & track_id, PublicEditor& ed, ARDOUR::Session* sess, ArdourCanvas::Canvas& canvas) ;
/**
* Destructor
* Responsible for destroying any child image items that may have been added to thie time axis
*/
virtual ~ImageFrameTimeAxis() ;
//---------------------------------------------------------------------------------------//
// ui methods & data
/**
* Sets the height of this TrackView to one of ths TrackHeghts
*
* @param h the number of pixels to set the height too
*/
virtual void set_height(uint32_t h) ;
/**
* Sets the number of samples per unit that are used.
* This is used to determine the siezes of items upon this time axis
*
* @param spu the number of samples per unit
*/
virtual void set_samples_per_unit(double spu) ;
/**
* Returns the available height for images to be drawn onto
*
* @return the available height for an image item to be drawn onto
*/
int get_image_display_height() ;
/**
* Show the popup edit menu
*
* @param button the mouse button pressed
* @param time when to show the popup
* @param clicked_imageframe the ImageFrameItem that the event ocured upon, or 0 if none
* @param with_item true if an item has been selected upon the time axis, used to set context menu
*/
void popup_imageframe_edit_menu(int button, int32_t time, ImageFrameView* clicked_imageframe, bool with_item) ;
//---------------------------------------------------------------------------------------//
// Marker Time Axis Methods
/**
* Add a MarkerTimeAxis to the ilst of MarkerTimeAxis' associated with this ImageFrameTimeAxis
*
* @param marker_track the MarkerTimeAxis to add
* @param src the identity of the object that initiated the change
* @return true if the addition was a success,
* false otherwise
*/
bool add_marker_time_axis(MarkerTimeAxis* marker_track, void* src) ;
/**
* Returns the named MarkerTimeAxis associated with this ImageFrameTimeAxis
*
* @param track_id the track_id of the MarkerTimeAxis to search for
* @return the named markerTimeAxis, or 0 if the named MarkerTimeAxis is not associated with this ImageFrameTimeAxis
*/
MarkerTimeAxis* get_named_marker_time_axis(const std::string & track_id) ;
/**
* Removes the named markerTimeAxis from those associated with this ImageFrameTimeAxis
*
* @param track_id the track id of the MarkerTimeAxis to remove
* @param src the identity of the object that initiated the change
* @return the removed MarkerTimeAxis
*/
MarkerTimeAxis* remove_named_marker_time_axis(const std::string & track_id, void* src) ;
/**
* Potentially removes a MarkerTimeAxisView from the list of MarkerTimaAxis associated with this ImageFrameTimeAxis
*
* @param tav the TimeAxis to remove
* @param src the identity of the object that initiated the change
*/
void remove_time_axis_view (TimeAxisView* av);
//---------------------------------------------------------------------------------------//
// Parent/Child helper object accessors
/**
* Returns the view helper of this TimeAxis
*
* @return the view helper of this TimeAxis
*/
ImageFrameTimeAxisView* get_view() ;
//---------------------------------------------------------------------------------//
// Emitted Signals
/** Emitted when a Marker Time Axis is Added, or associated with, this time axis */
sigc::signal<void,MarkerTimeAxis*,void*> MarkerTimeAxisAdded ;
/** Emitted when a Marker Time Axis is removed, from this time axis */
sigc::signal<void,std::string,void*> MarkerTimeAxisRemoved ;
protected:
private:
/**
* convenience method to select a new track color and apply it to the view and view items
*
*/
void select_track_color() ;
/**
* Handles the building of the popup menu
*/
virtual void build_display_menu() ;
/**
* handles the building of the ImageFrameView sub menu
*/
void create_imageframe_menu() ;
/* We may have multiple marker views, but each marker view should only be associated with one timeaxisview */
typedef std::list<MarkerTimeAxis*> MarkerTimeAxisList ;
MarkerTimeAxisList marker_time_axis_list;
/* the TimeAxis view helper */
ImageFrameTimeAxisView *view ;
// popup menu widgets
Gtk::Menu *image_action_menu ;
Gtk::Menu *imageframe_menu ;
Gtk::Menu *imageframe_item_menu ;
}; /* class ImageFrameTimeAxis */
#endif /* __ardour_imageframe_time_axis_h__ */