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// controller.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.
*
******************************************************************************/
// The Controller class is one of the three central classes in MiXViews. It is
// named such because of its role in the Model-View-Controller paradigm on
// which MiXViews is based. It coordinates and routes messages between various
// other graphic and non-graphic components. It contains pointers to an Editor
// subclass instance, a DataView subclass instance, and a DataWindow instance.
// It controls the creation and destruction of each display window and all of
// its associated parts. Each is connected via a doubly-linked circular list,
// each instance being a link in the list. Operations that pass data between
// windows do so via methods invoked upon the Controller via the DataEditor
// subclass member, and the entire list can be searched from anywhere on itself.
#ifndef CONTROLLER_H
#ifdef __GNUG__
#pragma interface
#endif
#define CONTROLLER_H
#include <InterViews/resource.h>
#include "localdefs.h"
#include "range.h"
#include <String.h>
class DataFile;
class Data;
class DataWindow;
class DataView;
class ViewInfo;
class World;
class Event;
class DataEditor;
class Request;
class StatusAction;
class EditStatusDelegate;
class Controller : public Resource {
private:
static Controller* head;
static int numControllers;
static int quitting;
Controller* prev;
Controller* next;
enum ViewType { AsChannels, AsFrames };
static ViewInfo& DefaultViewInfo;
private:
void addToList();
void removeFromList();
boolean closeChain();
public:
static Controller* create(DataFile *);
Controller(Data *, const char *name = nil, ViewInfo &info=DefaultViewInfo);
void display(World *);
const char *fileName() const;
const char* windowName () const;
Data* model() const;
DataEditor* editor() const { return myEditor; }
void busy(boolean);
// methods used (called by) Graphs
void setEditRegion(const Range ®ion, int chan);
void setInsertPoint(int point, int chan);
// methods used by editor
World *world();
boolean handleEvent(Event &);
boolean handleKeyEvent(Event &);
int handleRequest(Request &);
boolean keyCommand(unsigned long);
Data* findSelection();
void showInsertPoint(int, const Range &, boolean scroll = false);
void showEditRegion(const Range &, const Range &, boolean scroll = false);
void unselectView();
void resetScaleTimes();
void alert(const char* m1, const char* m2=nil,
const char* m3=nil, const char* =" ok ");
boolean confirm(const char* m1, const char* m2=nil,
const char* m3=nil, Response r=Yes, const char* ="confirm",
const char* ="cancel");
Response choice(const char* m1, const char* m2=nil,
const char* m3=nil, Response r=Yes, const char* =" yes ",
const char* =" no ", const char* ="cancel");
// methods called via menus or keyboard
void newViewOfSelection();
void viewAsFrames();
void viewAsChannels();
void zoomToSelection();
void zoomToFull();
boolean close();
void showVersion();
void quit();
void changeName();
void setProgramOptions();
protected:
Controller(const char *);
virtual ~Controller();
Data* getSelection(long ×tamp);
void setFileName(const char *);
void viewAs(ViewType type);
// converter methods
StatusAction* getConverterAction() { return converterAction; }
private:
void earlyInit();
boolean initialize(ViewInfo &info=DefaultViewInfo);
DataView* newView(ViewInfo &);
void createAndAttachView(ViewInfo &info=DefaultViewInfo);
void detachView();
int checkForStop();
private:
String filename;
DataWindow *window;
DataView *myView;
DataEditor *myEditor;
StatusAction *converterAction;
EditStatusDelegate* editDelegate;
friend DataEditor;
friend class SoundEditor;
friend class FFTEditor;
friend class LPCEditor;
friend class PCHEditor;
friend class EnvelopeEditor;
friend class ProcessFunction;
friend class FileSaver;
};
inline const char *
Controller::fileName() const { return filename; }
#endif
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