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// channelview.h
/******************************************************************************
*
* MiXViews - an X window system based sound & data editor/processor
*
* Copyright (c) 1993, 1994 Regents of the University of California
*
* Author: Douglas Scott
* Date: December 13, 1994
*
* Permission to use, copy and modify this software and its documentation
* for research and/or educational purposes and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation. The author reserves the right to distribute this
* software and its documentation. The University of California and the author
* make no representations about the suitability of this software for any
* purpose, and in no event shall University of California be liable for any
* damage, loss of data, or profits resulting from its use.
* It is provided "as is" without express or implied warranty.
*
******************************************************************************/
// A ChannelView object controls the visual display of a Data object when it is
// being displayed as a set of graphs representing the information in each
// channel. It contains a minimum of one ChannelGraph object. The DataView
// base class implements the Graph subclass coordination.
#ifndef CHANNELVIEW_H
#ifdef __GNUG__
#pragma interface
#endif
#define CHANNELVIEW_H
#include "dataview.h"
class HScale;
class VBox;
class Panner;
class Event;
class Perspective;
class Data;
class Range;
class Controller;
class ChannelGraph;
class EditStatusDelegate;
class ChannelView : public DataView {
typedef DataView Super;
public:
ChannelView(Controller *, ViewInfo &);
virtual ~ChannelView();
// methods invoked by menu items
redefined void setChannelRange();
redefined void shiftChannelViewUp();
redefined void shiftChannelViewDown();
redefined void toggleGraphMode();
// redefined to avoid hiding
redefined void setVisibleFrameRange() { DataView::setVisibleFrameRange(); }
redefined void setInsertPoint() { DataView::setInsertPoint(); }
redefined void setEditRegion() { DataView::setEditRegion(); }
redefined void setInsertPoint(int, const Range&, boolean scroll=true);
redefined void setEditRegion(const Range&, const Range&, boolean scroll=true);
redefined Range getHorizScaleRange();
redefined Range getVisibleFrameRange();
redefined void resetHorizontalScale();
redefined void setVisibleFrameRange(const Range &);
redefined Range getChannelRange();
redefined void setChannelRange(const Range &);
redefined boolean keyCommand(unsigned INT32 cmd);
redefined boolean frameScaleInFrames() { return horizScaleInFrames(); }
// methods new to this subclass
virtual void addChannel();
virtual void removeChannel();
void setScaleOptions();
protected:
redefined int graphsVisible();
redefined void addGraph(Graph *);
// methods new to this subclass
void addChannel(int chan);
void addChannel(int chan, Range &);
private:
friend Controller;
friend EditStatusDelegate;
void Init(ViewInfo &);
redefined const char* plotWidthAttribute() { return "ChannelPlotSize"; }
redefined void initPerspective();
redefined void checkPerspective();
redefined void constrainVerticalView(Perspective &);
redefined void incrementGraphsVisible();
redefined void decrementGraphsVisible();
int lowestChannel();
void setLowestChannel(int chan);
int highestChannel();
int nchans();
void setNChans(int chans);
int maxChans();
Perspective *channelsShown;
};
#endif
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