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OS/2 Shareware BBS: 10 Tools
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tv20cpp.zip
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tutorial
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tvguid05.cpp
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C/C++ Source or Header
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1998-01-19
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5KB
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169 lines
/*---------------------------------------------------------*/
/* */
/* Turbo Vision 1.0 */
/* TVGUID05 Demo Source File */
/* Copyright (c) 1991 by Borland International */
/* */
/*---------------------------------------------------------*/
/*
* Modified by Sergio Sigala <ssigala@globalnet.it>
*/
#include <stdlib.h> // for random()
#define Uses_TEventQueue
#define Uses_TEvent
#define Uses_TApplication
#define Uses_TKeys
#define Uses_TRect
#define Uses_TMenuBar
#define Uses_TSubMenu
#define Uses_TMenuItem
#define Uses_TStatusLine
#define Uses_TStatusItem
#define Uses_TStatusDef
#define Uses_TDeskTop
#define Uses_TView
#define Uses_TWindow
#include <tvision/tv.h>
const int cmMyFileOpen = 200; // assign new command values
const int cmMyNewWin = 201;
class TMyApp : public TApplication
{
public:
TMyApp();
static TStatusLine *initStatusLine( TRect r );
static TMenuBar *initMenuBar( TRect r );
virtual void handleEvent( TEvent& event);
void myNewWindow();
};
static short winNumber = 0; // initialize window number
class TDemoWindow : public TWindow // define a new window class
{
public:
TDemoWindow( const TRect& r, const char *aTitle, short aNumber );
};
class TInterior : public TView
{
public:
TInterior( const TRect& bounds ); // constructor
virtual void draw(); // override TView::draw
};
TInterior::TInterior( const TRect& bounds ) : TView( bounds )
{
growMode = gfGrowHiX | gfGrowHiY; //make size follow that of the window
options = options | ofFramed;
}
void TInterior::draw()
{
char *hstr = "Hello World!";
ushort color = getColor(0x0301);
TView::draw();
TDrawBuffer b;
b.moveStr( 0, hstr, color );
writeLine( 4, 2, 12, 1, b);
}
TMyApp::TMyApp() :
TProgInit( &TMyApp::initStatusLine,
&TMyApp::initMenuBar,
&TMyApp::initDeskTop
)
{
}
TStatusLine *TMyApp::initStatusLine(TRect r)
{
r.a.y = r.b.y - 1; // move top to 1 line above bottom
return new TStatusLine( r,
*new TStatusDef( 0, 0xFFFF ) +
// set range of help contexts
*new TStatusItem( 0, kbF10, cmMenu ) +
// define an item
*new TStatusItem( "~Alt-X~ Exit", kbAltX, cmQuit ) +
// define an item
*new TStatusItem( "~Alt-F3~ Close", kbAltF3, cmClose )
// and another one
);
}
TMenuBar *TMyApp::initMenuBar( TRect r )
{
r.b.y = r.a.y + 1; // set bottom line 1 line below top line
return new TMenuBar( r,
*new TSubMenu( "~F~ile", kbAltF )+
*new TMenuItem( "~O~pen", cmMyFileOpen, kbF3, hcNoContext, "F3" )+
*new TMenuItem( "~N~ew", cmMyNewWin, kbF4, hcNoContext, "F4" )+
newLine()+
*new TMenuItem( "E~x~it", cmQuit, cmQuit, hcNoContext, "Alt-X" )+
*new TSubMenu( "~W~indow", kbAltW )+
*new TMenuItem( "~N~ext", cmNext, kbF6, hcNoContext, "F6" )+
*new TMenuItem( "~Z~oom", cmZoom, kbF5, hcNoContext, "F5" )
);
}
void TMyApp::handleEvent(TEvent& event)
{
TApplication::handleEvent(event); // act like base!
if( event.what == evCommand )
{
switch( event.message.command )
{
case cmMyNewWin: // but respond to additional commands
myNewWindow(); // define action for cmMyNewWin
// command
break;
default:
return;
}
clearEvent( event ); // clear event after handling
}
}
void TMyApp::myNewWindow()
{
TRect r( 0, 0, 26, 7 ); // set initial size and position
/* SS: micro change here */
// r.move( random(53), random(16) ); // randomly move around screen
r.move( random() % 53, random() % 16 ); // randomly move around screen
TDemoWindow *window = new TDemoWindow ( r, "Demo Window", ++winNumber);
deskTop->insert(window); // put window into desktop and draw it
}
TDemoWindow::TDemoWindow( const TRect& bounds, const char *aTitle,
short aNumber) :
TWindow( bounds, aTitle, aNumber),
TWindowInit( &TDemoWindow::initFrame )
{
TRect r = getClipRect(); // get exposed area
r.grow(-1, -1); // make interior fit inside window frame
insert( new TInterior(r) ); // add interior to window
}
int main()
{
TMyApp myApp;
myApp.run();
return 0;
}