Category : C++ Source Code
Archive   : C_ALL.ZIP
Filename : TI1158.ASC

PRODUCT : Borland C++ NUMBER : 1158
VERSION : 3.1
OS : DOS
DATE : November 11, 1992 PAGE : 1/9

TITLE : A modal dialog from a modal dialog with Turbo Vision





The following code provides an example of executing a Modal
Dialog Box from another Dialog Box when using Turbo Vision.


/*********************************************************************\
* TEST.CPP *
* This module contains the Turbo Vision application code to run *
* this example. It sets up the necessary menus to bring up the *
* test module represented by this demo. *
* *
* TEST MODULE for Dialog Example #3 : Creating a second modal dialog*
* box from within a first. *
* *
*********************************************************************
* *
* This code was written by Borland Technical Support. *
* It is provided as is with no warranties expressed or implied. *
* *
\*********************************************************************/

#define Uses_TRect
#define Uses_TKeys
#define Uses_TEvent
#define Uses_TDialog
#define Uses_TMenu
#define Uses_TMenuItem
#define Uses_TMenuBar
#define Uses_TDeskTop
#define Uses_TApplication
#include
#include

#pragma hdrstop

#include "cmds.h"
#include "mdlg.h"


class TTestApp : public TApplication
{

public:













PRODUCT : Borland C++ NUMBER : 1158
VERSION : 3.1
OS : DOS
DATE : November 11, 1992 PAGE : 2/9

TITLE : A modal dialog from a modal dialog with Turbo Vision




TTestApp() : TApplication(),
TProgInit( initStatusLine, initMenuBar, initDeskTop )
{ }
static TMenuBar *initMenuBar( TRect r );
virtual void handleEvent( TEvent& event );

};


TMenuBar *TTestApp::initMenuBar( TRect r )
{
r.b.y = r.a.y + 1;
return new TMenuBar( r, new TMenu(
*new TMenuItem( "~D~ialog Box", cmEDialog, kbAltE )
));
}


void TTestApp::handleEvent( TEvent& event )
{
TFirstDialog *td;

TApplication::handleEvent( event );

if( event.what == evCommand &&
event.message.command == cmEDialog )
{
td = new TFirstDialog( TRect(0,0,40,11),
"The first dialog box." );
if( validView( td ) )
deskTop->execView( td );
}
}


int main()
{
TTestApp TB;
TB.run();
return 0;
}















PRODUCT : Borland C++ NUMBER : 1158
VERSION : 3.1
OS : DOS
DATE : November 11, 1992 PAGE : 3/9

TITLE : A modal dialog from a modal dialog with Turbo Vision




/*********************************************************************
* *
* MDLG.CPP *
* This module contains the code for the two subclassed dialogs use*
* by this demo. *
* *
* SUPPORT MODULE for dialog example #3 : Creating a second modal *
* dialog box from within a first. *
* *
* The key to this operation is making sure that the deskTop's *
* execView() function is used in all cases when a modal dialog box*
* is desired. execView() is a member function of TGroup, thus any*
* class derived from TGroup will have its own version of that *
* function. When inside a dialog box handleEvent procedure, code *
* such as *
* *
* TDialog *td = ... *
* execView( td ); *
* *
* will compile, but the box will come up with lots of flashing *
* white on red colors. This is because the new dialog box was *
* inserted into the old dialog box, instead of the deskTop and the*
* palette isn't mapped right. The solution is to execView the *
* dialog box this way: *
* *
* TDialog *td = ... *
* TProgram::deskTop->execView( td ); *
* *
* 'deskTop' is a static public member of TProgram and points to the*
* desktop object of the current application. This way, the dialog*
* box will be inserted into the desktop and the palettes will work*
* properly. The Z order will also be correct so that the views *
* stack up right. *
* *
*********************************************************************
* *
* This code was written by Borland Technical Support. *
* It is provided as is with no warranties expressed or implied. *
* *
*********************************************************************/

#define Uses_TRect
#define Uses_TKeys













PRODUCT : Borland C++ NUMBER : 1158
VERSION : 3.1
OS : DOS
DATE : November 11, 1992 PAGE : 4/9

TITLE : A modal dialog from a modal dialog with Turbo Vision




#define Uses_TEvent
#define Uses_TButton
#define Uses_TStaticText
#define Uses_TDialog
#define Uses_MsgBox
#define Uses_TDeskTop
#define Uses_TProgram
#include

#pragma hdrstop

#include "cmds.h"
#include "mdlg.h"


/********************************************************************
* Class TFirstDialog *
********************************************************************
* TFirstDialog::TFirstDialog *
* Constructor for the dialog box. Encapsulates the box to ease *
* creation. *
********************************************************************/

TFirstDialog::TFirstDialog( TRect& r, char *aTitle ) :
TDialog( r, aTitle ),
TWindowInit( initFrame )
{
insert( new TStaticText( TRect(2,2,38,6),
"This is a modal dialog box. Hitting the button below "
"will bring up a second modal dialog box on top of this one."
));

insert( new TButton( TRect(2,8,12,10),
"~M~ore", cmMore, bfDefault )
);
insert( new TButton( TRect(14,8,24,10), "O~K~", cmOK, bfNormal )
);
insert( new TButton( TRect(26,8,36,10), "~C~ancel", cmCancel,
bfNormal )
);

selectNext( False );
options |= ofCentered;














PRODUCT : Borland C++ NUMBER : 1158
VERSION : 3.1
OS : DOS
DATE : November 11, 1992 PAGE : 5/9

TITLE : A modal dialog from a modal dialog with Turbo Vision




}


/***********************************************************************
* TFirstDialog::handleEvent
* Handle the button and bring up the second dialog box when
* this button is pushed.
***********************************************************************/

void TFirstDialog::handleEvent( TEvent& event )
{
TSecondDialog *td;

if( event.what == evCommand )
switch( event.message.command )
{
case cmMore: // Brings up a second dialog box...
td = new TSecondDialog( TRect(0,0,38,9),
"The second dialog box."
);
if( TProgram::application->validView( td ) )
TProgram::deskTop->execView( td );
clearEvent( event );
break;
}

TDialog::handleEvent( event );
}


/**********************************************************************
*
* Class TSecondDialog
*
**********************************************************************
* TSecondDialog::TSecondDialog
* A fairly cheezy second dialog box with an ok button to make it go
* away. (This is probably a good thing 🙂 )
***********************************************************************/

TSecondDialog::TSecondDialog( TRect& r, char *aTitle ) :
TDialog( r, aTitle ),
TWindowInit( initFrame )













PRODUCT : Borland C++ NUMBER : 1158
VERSION : 3.1
OS : DOS
DATE : November 11, 1992 PAGE : 6/9

TITLE : A modal dialog from a modal dialog with Turbo Vision





{
insert( new TStaticText( TRect(2,2,36,5),
"This the second modal dialog box. Hitting the button or "
" will make it go away."
));

insert( new TButton( TRect(13,6,23,8), "O~K~", cmOK, bfDefault )
);
options |= ofCentered;
}











/*********************************************************************
* *
* CMDS.H *
* This header contains various commands used in the main message *
* system (including the menu bar, status line, and miscellaneous *
* dialog boxes.) *
* *
*********************************************************************
* *
* This code was written by Borland Technical Support. *
* It is provided as is with no warranties expressed or implied. *
* *
*********************************************************************/

#ifndef _CMDS_H
#define _CMDS_H

const unsigned short cmEDialog = 100;
const unsigned short cmMore = 101;

#endif














PRODUCT : Borland C++ NUMBER : 1158
VERSION : 3.1
OS : DOS
DATE : November 11, 1992 PAGE : 7/9

TITLE : A modal dialog from a modal dialog with Turbo Vision




/*********************************************************************
* *
* MDLG.H *
* This header contains the class definitions for the MDLG.CPP *
* source module. *
* *
* CLASSES *
* TFirstDialog The first dialog box. *
* TSecondDialog The second dialog box. *
* *
*********************************************************************
* *
* This code was written by Borland Technical Support. *
* It is provided as is with no warranties expressed or implied. *
* *
*********************************************************************/


class TFirstDialog : public TDialog
{

public:

TFirstDialog( TRect& r, char *aTitle );
virtual void handleEvent( TEvent& event );

};


class TSecondDialog : public TDialog
{

public:

TSecondDialog( TRect& r, char *aTitle );

};



















PRODUCT : Borland C++ NUMBER : 1158
VERSION : 3.1
OS : DOS
DATE : November 11, 1992 PAGE : 8/9

TITLE : A modal dialog from a modal dialog with Turbo Vision




#
# Makefile for Turbo Vision sample demo
#
# Written by Borland Tech Support, 1992.
#
.AUTODEPEND

NAME = test
OBJS = $(NAME).obj mdlg.obj

DEBUG = -v
MODEL = -ml
MAP = -x
INCPATH = C:\BORLANDC\INCLUDE;C:\BORLANDC\TVISION\INCLUDE
LIBPATH = C:\BORLANDC\LIB;C:\BORLANDC\TVISION\LIB

CFLAGS = -c -H=$(NAME).sym $(DEBUG) $(MODEL)
LFLAGS = $(MAP) $(DEBUG) -Vt -L$(LIBPATH)
CC = bcc
LINK = tlink

.cpp.obj:
$(CC) +$(NAME).cfg {$*.cpp }

.c.obj:
$(CC) +$(NAME).cfg {$*.c }

$(NAME).exe: $(NAME).cfg $(OBJS)
$(LINK) @&&~
$(LFLAGS) c0l +
$(OBJS)
$(NAME).exe
$(NAME).map
tv +
emu + mathl + cl
~

$(NAME).cfg: makefile
copy &&~
$(CFLAGS) -I$(INCPATH) -L$(LIBPATH)
~ $(NAME).cfg

clean:













PRODUCT : Borland C++ NUMBER : 1158
VERSION : 3.1
OS : DOS
DATE : November 11, 1992 PAGE : 9/9

TITLE : A modal dialog from a modal dialog with Turbo Vision




del *.sym *.obj *.exe *.cfg





DISCLAIMER: You have the right to use this technical information
subject to the terms of the No-Nonsense License Statement that you
received with the Borland product to which this information pertains.