menu.c

来自「This source code has been tested under O」· C语言 代码 · 共 159 行

/***********************************************************************
**                                                                    **
**  menu.c                                                            **
**                                                                    **
**  Text Editor -- Menubar Module                                     **
**                                                                    **
***********************************************************************/


#include <string.h>

#include <Xm/RowColumn.h>
#include <Xm/CascadeB.h>
#include <Xm/Label.h>
#include <Xm/PushB.h>
#include <Xm/Separator.h>

#include "textedit.h"


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

static	void	InitFileMenu();
static	void	InitEditMenu();
static	void	InitViewMenu();
static	void	InitOptionMenu();
static	void	InitHelpMenu();



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



/***********************************************************************
**                                                                    **
**  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()
{
    menubar = XmCreateMenuBar( mainwin, "MenuBar", NULL, 0 );
    XtManageChild( menubar );

    InitFileMenu();
    InitEditMenu();
    InitViewMenu();
    InitOptionMenu();
    InitHelpMenu();
}


/***********************************************************************
**                                                                    **
**  InitFileMenu()                                                    **
**                                                                    **
**  Creates the File menu: cascade button, pull-down menu pane, and   **
**  all menu-pane choices. Attaches callbacks to menu-pane choices.   **
**                                                                    **
***********************************************************************/

static void InitFileMenu()
{
    Widget	topic;

    topic = XmCreateCascadeButton( menubar, "FileTopic", NULL, 0 );
    XtManageChild( topic );
}


/***********************************************************************
**                                                                    **
**  InitEditMenu()                                                    **
**                                                                    **
**  Creates the Edit menu: cascade button, pull-down menu pane, and   **
**  all menu-pane choices. Attaches callbacks to menu-pane choices.   **
**                                                                    **
***********************************************************************/

static void InitEditMenu()
{
    Widget	topic;

    topic = XmCreateCascadeButton( menubar, "EditTopic", NULL, 0 );
    XtManageChild( topic );
}


/***********************************************************************
**                                                                    **
**  InitViewMenu()                                                    **
**                                                                    **
**  Creates the View menu: cascade button, pull-down menu pane, and   **
**  all menu-pane choices. Attaches callbacks to menu-pane choices.   **
**                                                                    **
***********************************************************************/

static void InitViewMenu()
{
    Widget	topic;

    topic = XmCreateCascadeButton( menubar, "ViewTopic", NULL, 0 );
    XtManageChild( topic );
}


/***********************************************************************
**                                                                    **
**  InitOptionMenu()                                                  **
**                                                                    **
**  Creates the Option menu: cascade button, pull-down menu pane, and **
**  all menu-pane choices. Attaches callbacks to menu-pane choices.   **
**                                                                    **
***********************************************************************/

static void InitOptionMenu()
{
    Widget	topic;

    topic = XmCreateCascadeButton( menubar, "OptionTopic", NULL, 0 );
    XtManageChild( topic );
}


/***********************************************************************
**                                                                    **
**  InitHelpMenu()                                                    **
**                                                                    **
**  Creates the Help menu: cascade button, pull-down menu pane, and   **
**  all menu-pane choices. Attaches callbacks to menu-pane choices.   **
**                                                                    **
***********************************************************************/

static void InitHelpMenu()
{
    Widget	topic;

    topic = XmCreateCascadeButton( menubar, "HelpTopic", NULL, 0 );
    XtManageChild( topic );

    XtSetArg( arglist[0], XmNmenuHelpWidget, topic );
    XtSetValues( menubar, arglist, 1 );
}