/*---------------------------------------------------------*/
/*                                                         */
/*   TVDemo.h : Header file for TVDemo.cpp                 */
/*                                                         */
/*---------------------------------------------------------*/
/*
 *      Turbo Vision - Version 2.0
 *
 *      Copyright (c) 1994 by Borland International
 *      All Rights Reserved.
 *
 */

class TStatusLine;
class TMenuBar;
class TEvent;
class TPalette;
class THeapView;
class TClockView;
class fpstream;

class TVDemo : public TApplication 
{

public:

    TVDemo( int argc, char **argv );
    static TStatusLine *initStatusLine( TRect r );
    static TMenuBar *initMenuBar( TRect r );
    virtual void handleEvent(TEvent& Event);
    virtual void getEvent(TEvent& event);
    virtual TPalette& getPalette() const;
    virtual void idle();              // Updates heap and clock views

private:

    THeapView *heap;                  // Heap view
    TClockView *clock;                // Clock view

    void aboutDlgBox();               // "About" box
    void puzzle();                    // Puzzle
    void calendar();                  // Calendar
    void asciiTable();                // Ascii table
    void calculator();                // Calculator
    void openFile( char *fileSpec );  // File Viewer
    void changeDir();                 // Change directory
    void shell();                     // DOS shell
    void tile();                      // Tile windows
    void cascade();                   // Cascade windows
    void mouse();                     // Mouse control dialog box
    void colors();                    // Color control dialog box
    void outOfMemory();               // For validView() function
    void loadDesktop(fpstream& s);    // Load and restore the
    void retrieveDesktop();           //  previously saved desktop
    void storeDesktop(fpstream& s);   // Store the current desktop
    void saveDesktop();               //  in a resource file

    // In original demo that's a CP 437 specific code. I left it but I use
    // it to show how to solve this using the new code page features of
    // this port of TV.
    static uchar systemMenuIcon[];    // Menu name for the "system menu"
                                      // encoded in current code page
    static uchar osystemMenuIcon[];   // Same encoded in CP 437, used as
                                      // reference.
public:
                                      // Previous callback in the code page chain
    static TVCodePageCallBack oldCPCallBack;
    static void cpCallBack(ushort *map); // That's our callback
};
