276 lines
8.2 KiB
C++
276 lines
8.2 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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*/
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#ifndef __ardour_imageframe_time_axis_view_h__
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#define __ardour_imageframe_time_axis_view_h__
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#include <list>
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#include <cmath>
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#include <gdkmm/color.h>
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#include <jack/jack.h>
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#include <libgnomecanvasmm.h>
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#include "canvas.h"
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#include "simplerect.h"
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class PublicEditor ;
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class ImageFrameTimeAxis ;
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class ImageFrameView ;
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class ImageFrameTimeAxisGroup ;
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/**
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* ImageFrameTimeAxisView defines the time axis view helper
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* This object is responsible for the time axis canvas view, and
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* maintains the list of items that have been added to it
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*
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*/
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class ImageFrameTimeAxisView : public sigc::trackable
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{
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public:
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//---------------------------------------------------------------------------------------//
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// Constructor / Desctructor
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/**
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* Constructs a new ImageFrameTimeAxisView.
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*
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* @param ifta the parent ImageFrameTimeAxis of this view helper
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*/
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ImageFrameTimeAxisView(ImageFrameTimeAxis& ifta) ;
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/**
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* Destructor
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* Responsible for destroying all items tat may have been added to this time axis
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*/
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~ImageFrameTimeAxisView () ;
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//---------------------------------------------------------------------------------------//
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// Parent/Child helper object accessors
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/**
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* Returns the TimeAxisView thatt his object is acting as a helper for
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*
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* @return the TimeAxisView that this object is acting as a view helper for
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*/
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ImageFrameTimeAxis& trackview() { return _trackview; }
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/**
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*
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*/
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ArdourCanvas::Group * canvas_item() { return &canvas_group; }
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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 set_height(gdouble) ;
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/**
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* Sets the position of this view helper on the canvas
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*
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* @param x the x position upon the canvas
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* @param y the y position upon the canvas
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*/
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int set_position(gdouble x, gdouble y) ;
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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 set_samples_per_unit(gdouble spu) ;
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/**
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* Returns the current samples per unit of this time axis view helper
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*
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* @return the current samples per unit of this time axis view helper
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*/
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gdouble get_samples_per_unit() { return _samples_per_unit; }
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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 apply_color (Gdk::Color&) ;
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//---------------------------------------------------------------------------------------//
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// Child ImageFrameTimeAxisGroup Accessors/Mutators
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/**
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* Adds an ImageFrameTimeAxisGroup to the list of items upon this time axis view helper
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* the new ImageFrameTimeAxisGroup is returned
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*
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* @param group_id the unique id of the new group
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* @param src the identity of the object that initiated the change
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*/
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ImageFrameTimeAxisGroup* add_imageframe_group(std::string group_id, void* src) ;
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/**
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* Returns the named ImageFrameTimeAxisGroup or 0 if the named group does not exist on this view helper
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*
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* @param group_id the unique id of the group to search for
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* @return the named ImageFrameTimeAxisGroup, or 0 if it is not held upon this view
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*/
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ImageFrameTimeAxisGroup* get_named_imageframe_group(std::string group_id) ;
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/**
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* Removes and returns the named ImageFrameTimeAxisGroup from the list of ImageFrameTimeAxisGroup held by this view helper
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*
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* @param group_id the ImageFrameTimeAxisGroup 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_group
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*/
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ImageFrameTimeAxisGroup* remove_named_imageframe_group(std::string group_id, void* src) ;
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/**
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* Removes the specified ImageFrameTimeAxisGroup from the list of ImageFrameTimeAxisGroups upon this TimeAxis.
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*
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* @param iftag the ImageFrameView to remove
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*/
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void remove_imageframe_group(ImageFrameTimeAxisGroup* iftag, void* src) ;
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//---------------------------------------------------------------------------------------//
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// Selected group methods
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/**
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* Sets the currently selected group 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 set_selected_imageframe_group(ImageFrameTimeAxisGroup* iftag) ;
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/**
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* Clears the currently selected image frame group unpo this time axis
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*
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*/
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void clear_selected_imageframe_group() ;
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/**
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* Returns the currently selected group upon this time axis
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*
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* @return the currently selected group upon this time axis
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*/
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ImageFrameTimeAxisGroup* get_selected_imageframe_group() const ;
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/**
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* Sets the duration of the selected ImageFrameView to the specified number of seconds
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*
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* @param sec the duration to set the ImageFrameView to, in seconds
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*/
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void set_imageframe_duration_sec(double sec) ;
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//---------------------------------------------------------------------------------------//
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// Selected item methods
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/**
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* Sets the currently selected image frame view item
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*
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* @param iftag the group the selected item is part
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* @param ifv the selected item
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*/
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void set_selected_imageframe_view(ImageFrameTimeAxisGroup* iftag, ImageFrameView* ifv) ;
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/**
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* Clears the currently selected image frame view item
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*
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* @param clear_group set true if the selected parent group of the item should be cleared also
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*/
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void clear_selected_imageframe_item(bool clear_group) ;
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/**
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* Returns the currently selected image frame view item upon this time axis
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*
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* @return the currently selected image frame view item
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*/
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ImageFrameView* get_selected_imageframe_view() const ;
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/**
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* Removes the currently selected ImageFrameTimeAxisGroup
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*
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* @param src the identity of the object that initiated the change
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* @see add_imageframe_group
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*/
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void remove_selected_imageframe_item(void* src) ;
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//---------------------------------------------------------------------------------//
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// Emitted Signals
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/** Emitted when and ImageFrameGroup is added to this time axis */
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sigc::signal<void,ImageFrameTimeAxisGroup*,void*> ImageFrameGroupAdded ;
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/** Emitted when an ImageFrameGroup is removed from this time axis */
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sigc::signal<void,std::string,void*> ImageFrameGroupRemoved ;
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protected:
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private:
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/**
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* convenience method to re-get the samples per unit and tell items upon this view
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*
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*/
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void reset_samples_per_unit() ;
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/**
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* The list of ImageFrameViews held by this view helper */
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typedef std::list<ImageFrameTimeAxisGroup *> ImageFrameGroupList ;
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ImageFrameGroupList imageframe_groups ;
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/** the currently selected time axis item upon this time axis */
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ImageFrameTimeAxisGroup* selected_imageframe_group ;
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/**
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* thecurrently selected image frame view
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* we keep this here so that we only have one per view, not one per group
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*/
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ImageFrameView* selected_imageframe_view ;
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/* the TimeAxisView that this object is acting as the view helper for */
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ImageFrameTimeAxis& _trackview ;
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ArdourCanvas::Group canvas_group ;
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ArdourCanvas::SimpleRect canvas_rect; /* frame around the whole thing */
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/** the current samples per unit */
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double _samples_per_unit ;
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/* XXX why are these different? */
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Gdk::Color region_color ;
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uint32_t stream_base_color ;
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} ; /* class ImageFrameTimeAxisView */
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#endif /* __ardour_imageframe_time_axis_view_h__ */
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