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livetrax/gtk2_ardour/visual_time_axis.h
Carl Hetherington f722858e43 Patch from tophatdave to improve display of timestretch in
stacked layers mode (#4379).


git-svn-id: svn://localhost/ardour2/branches/3.0@12460 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-05-27 20:07:13 +00:00

267 lines
7.6 KiB
C++

/*
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_visual_time_axis_h__
#define __ardour_visual_time_axis_h__
#include <gtkmm/box.h>
#include <gtkmm/button.h>
#include <gtkmm2ext/selector.h>
#include "ardour_dialog.h"
#include "route_ui.h"
#include "enums.h"
#include "time_axis_view.h"
#include "canvas.h"
namespace ARDOUR
{
class Session ;
}
class PublicEditor;
class ImageFrameView;
class ImageFrameTimeAxisView;
class MarkersTimeAxisView;
class TimeSelection;
class RegionSelection;
class MarkerTimeAxis;
class TimeAxisViewStrip;
/**
* Base Abstact Class for TimeAxis views that operate purely within the visual domain.
*
* This class provides many of the common methods required for visual TimeAxis views. The aim is
* to provide an abstract layer during the developmnt of the visual based time axis'. Many of these
* methods have a better home further up the class heirarchy, and in fact some are replication of
* methods found within RouteUI. This, however, has been required due to various problems with previous
* versions of g++, mainly 2.95, which are not correctly handling virtual methods, virtual base classes,
* and virtual methods when used with Multiple Inheritance. Perhaps these could be combined once the
* compilers all agree on hos do to do stuff...
*/
class VisualTimeAxis : public TimeAxisView
{
public:
//---------------------------------------------------------------------------------------//
// Constructor / Desctructor
/**
* VisualTimeAxis Destructor
*
*/
virtual ~VisualTimeAxis() ;
//---------------------------------------------------------------------------------------//
// Name/Id Accessors/Mutators
/**
* Returns the name of this TimeAxis
*
* @return the name of this TimeAxis
*/
virtual std::string name() const ;
/**
* Sets the name of this TimeAxis
*
* @param name the new name of this TimeAxis
* @param src the identity of the object that initiated the change
*/
virtual void set_time_axis_name(const std::string & name, void* src) ;
//---------------------------------------------------------------------------------------//
// ui methods & data
/**
* Sets the height of this TrackView to one of the defined TrackHeghts
*
* @param h the number of pixels to set the height to
*/
virtual void set_height (uint32_t);
//---------------------------------------------------------------------------------------//
// Selection Methods
// selection methods are not handled by visual time axis object yet...
/**
* Not implemented
*/
virtual void set_selected_regionviews(RegionSelection&) ;
//---------------------------------------------------------------------------------//
// Emitted Signals
/**
* Emitted when we have changed the gui, and what we have shanged
*/
sigc::signal<void,const std::string &,void*> gui_changed ;
/**
* Emitted when this Visual Time Axis has been removed
* This is different to the CatchDeletion signal in that this signal
* is emitted during the deletion of this Time Axis, and not during
* the destructor, this allows us to capture the source of the deletion
* event
*/
sigc::signal<void,const std::string &,void*> VisualTimeAxisRemoved ;
/**
* Emitted when we have changed the name of this TimeAxis
*/
sigc::signal<void,const std::string &,const std::string &,void*> NameChanged ;
/**
* Emitted when this time axis has been selected for removal
*/
//sigc::signal<void,std::std::string,void*> VisualTimeAxisRemoved ;
//---------------------------------------------------------------------------------------//
// Constructor / Desctructor
/**
* Abstract Constructor for base visual time axis classes
*
* @param name the name/Id of thie TimeAxis
* @param ed the Ardour PublicEditor
* @param sess the current session
* @param canvas the parent canvas object
*/
VisualTimeAxis(const std::string & name, PublicEditor& ed, ARDOUR::Session* sess, ArdourCanvas::Canvas& canvas) ;
//---------------------------------------------------------------------------------------//
// Handle time axis removal
/**
* Handles the Removal of this VisualTimeAxis
*
* @param src the identity of the object that initiated the change
*/
virtual void remove_this_time_axis(void* src) ;
/**
* Callback used to remove this time axis during the gtk idle loop
* This is used to avoid deleting the obejct while inside the remove_this_time_axis
* method
*
* @param ta the VisualTimeAxis to remove
* @param src the identity of the object that initiated the change
*/
static gint idle_remove_this_time_axis(VisualTimeAxis* ta, void* src) ;
//---------------------------------------------------------------------------------------//
// ui methods & data
/**
* Handle the visuals button click
*
*/
void visual_click() ;
/**
* Handle the hide buttons click
*
*/
void hide_click() ;
/**
* Allows the selection of a new color for this TimeAxis
*
*/
virtual void select_track_color() ;
/**
* Provides a color chooser for the selection of a new time axis color.
*
*/
bool choose_time_axis_color() ;
/**
* Sets the color of this TimeAxis to the specified color c
*
* @param c the new TimeAxis color
*/
void set_time_axis_color(Gdk::Color c) ;
//---------------------------------------------------------------------------------------//
// Handle TimeAxis rename
/**
* Construct a new prompt to receive a new name for this TimeAxis
*
* @see finish_time_axis_rename()
*/
void start_time_axis_rename() ;
/**
* Handles the new name for this TimeAxis from the name prompt
*
* @see start_time_axis_rename()
*/
virtual void label_view() ;
//---------------------------------------------------------------------------------------//
// Handle name entry signals
void name_entry_changed() ;
bool name_entry_focus_out_handler(GdkEventFocus*) ;
bool name_entry_key_release_handler(GdkEventKey*) ;
bool name_entry_button_release_handler(GdkEventButton*) ;
bool name_entry_button_press_handler(GdkEventButton*) ;
//---------------------------------------------------------------------------------------//
// VisualTimeAxis Widgets
Gtk::HBox other_button_hbox ;
Gtk::Button hide_button ;
Gtk::Button visual_button ;
Gtk::Button size_button ;
/** the name of this TimeAxis object */
std::string time_axis_name ;
//---------------------------------------------------------------------------------------//
// Super class methods not handled by VisualTimeAxis
/**
* Not handled by purely Visual TimeAxis
*
* @todo should VisualTimeAxis handle this?
*/
void show_timestretch (nframes_t start, nframes_t end, int layers, int layer);
/**
* Not handle by purely visual TimeAxis
* @see show_timestratch
*/
virtual void hide_timestretch() ;
private:
};
#endif /* __ardour_visual_time_axis_h__ */