listing_11_6.c

This source code has been tested under OpenWindows 2.0, Sun s X11/NeWS server. For Xlib programs th

/***********************************************************************
**                                                                    **
**  listing_11_6.c                                                    **
**                                                                    **
**  Text Editor, Revision 1. This program will be built in Chapters   **
**  11 to 14. At this point, it consists of an XmMainWindow widget,   **
**  as the parent of a scrolled text "widget".                        **
**                                                                    **
***********************************************************************/


#include <Xm/MainW.h>
#include <Xm/Text.h>


/***********************************************************************
**                                                                    **
**               F O R W A R D   D E F I N I T I O N S                **
**                                                                    **
***********************************************************************/

void    InitMainWindow();
void    InitMenuBar();
void    InitWorkWindow();
void	InitOther();



/***********************************************************************
**                                                                    **
**                   G L O B A L   V A R I A B L E S                  **
**                                                                    **
***********************************************************************/

Widget	appshell,			/* Application Shell          */
	mainwin,			/* XmMainWindow		      */
	menubar,			/* MainWindow Menu Bar	      */
	workwin;			/* MainWindow Work Area       */
Arg	arglist[16];			/* For programmatic rsrc stuf */



/***********************************************************************
**                                                                    **
**  main( argc, argv )                                                **
**                                                                    **
**  Program entry point. Creates shell, calls initialization funcs,   **
**  and turns control over to event loop.                             **
**                                                                    **
***********************************************************************/

void	main( argc, argv )
    int     argc;
    char    *argv[];
{
    appshell = XtInitialize( argv[0], "Listing_11_6", NULL, 0, &argc, argv );

    InitMainWindow();
    InitMenuBar();
    InitWorkWindow();

    XmMainWindowSetAreas( mainwin, menubar, NULL, NULL, NULL, workwin );

    InitOther();

    XtRealizeWidget( appshell );
    XtMainLoop();
}


/***********************************************************************
**                                                                    **
**  InitMainWindow()                                                  **
**                                                                    **
**  This function creates the main window widget and its scrollbars.  **
**  The main window is created as a child of the application shell.   **
**  The scrollbars are either created along with the main-window (if  **
**  its "scrollingPolicy" resource contains TRUE) or separately.      **
**                                                                    **
**  This function modifies the global "mainwin", and accesses the     **
**  global "appshell".                                                **
**                                                                    **
***********************************************************************/

void	InitMainWindow()
{
    mainwin = XmCreateMainWindow( appshell, "MainWin", NULL, 0 );
    XtManageChild( mainwin );
}


/***********************************************************************
**                                                                    **
**  InitMenuBar()                                                     **
**                                                                    **
**  This function creates the menu bar and all pulldown menus. The    **
**  menu bar is created as the child of the main window.              **
**                                                                    **
**  This function modifies the global "menubar", and accesses the     **
**  global "mainwin".                                                 **
**                                                                    **
***********************************************************************/

void	InitMenuBar()
{
}


/***********************************************************************
**                                                                    **
**  InitWorkWindow()                                                  **
**                                                                    **
**  This function creates the work window and its children. The       **
**  work window is created as the child of the main window.           **
**                                                                    **
**  This function modifies the global "workwin", and accesses the     **
**  global "mainwin".                                                 **
**                                                                    **
***********************************************************************/

void	InitWorkWindow()
{
    Widget	txtmp;

    txtmp = XmCreateScrolledText( mainwin, "WorkWin", NULL, 0 );
    XtManageChild( txtmp );

    workwin = XtParent( txtmp );
}


/***********************************************************************
**                                                                    **
**  InitOther()                                                       **
**                                                                    **
**  This function performs other program initialization, such as      **
**  loading any default data.                                         **
**                                                                    **
***********************************************************************/

void	InitOther()
{
}