From: rogerr@netcom.com (roger reynolds)
Subject: Motif Stay Up Menus with WCL
Date: Tue, 21 Jul 92 23:26:31 GMT
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Followup-To: poster


Hi, 
	
Included below is a very small example to demonstrate a technique for
implementing "stay-up" menus in Motif.  I just got the idea to try
this this morning, and this afternoon I have a reasonable hack to do
"Stay Up", "Tear Off", "Sticky", "Pinnable", or "whatever you want to call
this sort of thing", menus.

This happens to use WCL cuz it is so cool, but you could use the 
same approach if you were writing an application in straight C.
(does anybody actually do that anymore ?:)
It may be easiar to see what is going on to read the second
part of this note which is a blurb on a preprocessor for WCL which
I have written and use.

Comments welcomed,
rogerr@netcom.com





You should be able to "run" the app-defaults definitions below
with Mri to see the example in action.
!
!
!  Demostration Resource File for Stay Up Menus
!
!
Mri.wcChildren: main
*main.wcClassName: XmMainWindow
*main.wcChildren: menuBar
*menuBar.wcConstructor:	XmCreateMenuBar
*menuBar.wcChildren:	fileMenu fileBtn
*menuBar.*background:slategray
*menuBar.*foreground:white
*menuBar.#	wcCallback: WcSetValueCB
*fileBtn.wcConstructor:    XmCreateCascadeButton
*fileBtn.labelString:  	   File
*fileBtn.wcCallback:    WcSetValueCB(this.subMenuId: ~*fileMenu)		WcTranslations(this, #override Shift<Btn1Up>: WcCreateChildrenACT(~,fileBB))
*fileMenu.wcConstructor: XmCreatePulldownMenu
*fileMenu.wcManaged:     False
*fileMenu.wcChildren:    fileOpenBtn filePropBtn\
 	fileSelectAllBtn filePrintBtn fileDeleteBtn\
 	showMessagesBtn fileExitBtn
*fileBB.wcConstructor: XmCreateBulletinBoardDialog
*fileBB.wcChildren:   rc
*fileBB.wcCallback:   WcSetValueCB(^.title:File Menu)
*fileBB.*marginWidth:0
*fileBB.*marginHeight:0
*fileBB.*background:slategray
*fileBB.*foreground:white
*fileBB.rc.wcClassName: XmRowColumn
*fileBB.rc.wcChildren: fileOpenBtn filePropBtn\
	fileSelectAllBtn filePrintBtn fileDeleteBtn\
	showMessagesBtn fileExitBtn
*fileOpenBtn.wcClassName:    XmPushButton
*fileOpenBtn.labelString:      Open ...
*fileOpenBtn.activateCallback:  WcTraceCB
*filePropBtn.wcClassName:    XmPushButton
*filePropBtn.labelString:      Properties ...
*filePropBtn.activateCallback:  WcTraceCB
*fileSelectAllBtn.wcClassName:    XmPushButton
*fileSelectAllBtn.labelString:      Select All
*fileSelectAllBtn.activateCallback:	fileSelectAll
*filePrintBtn.wcClassName:    XmPushButton
*filePrintBtn.labelString:      Print
*filePrintBtn.activateCallback:  WcTraceCB
*fileDeleteBtn.wcClassName:    XmPushButton
*fileDeleteBtn.labelString:      Delete
*fileDeleteBtn.activateCallback:  WcTraceCB
*showMessagesBtn.wcClassName:    XmPushButton
*showMessagesBtn.labelString:      Show Messages
*showMessagesBtn.activateCallback:  WcTraceCB
*fileExitBtn.wcClassName:    XmPushButton
*fileExitBtn.labelString:      Exit
*fileExitBtn.activateCallback:  WcExitCB
!
!
! End of Resource File
!
!


#
#
# What follows here is the "source code" which I used to generate
# the app-defaults statements above.  I include it only as in introduction
# to the "RIL" language - you won't be able to do anyting useful with
# it except see what it looks like.
#
# This "RIL" language which I have been developing over the past couple
# of months, is basically a preprocessor for WCL.
# I use it all the time, and think that it is a pretty neat thing.
# The output can be written to a file (as above) or loaded directly
# via xrm at run time.
#
# The first thing to note about the "RIL" version of this program is
# that it is quite a bit more readable than a straight app-defaults file
# would be.  This becomes more and more important as the size of your
# application (and thus app-defaults file(s)) become.
#
# What this example does not show is the ability of RIL to define functions,
# set variables, use conditional statements and looping constructs,
# include other RIL files and on and on...
# 
# "RIL or "Roger's Interface Language"  is based on TCL.
# If you don't know what TCL is, you should make an effort to find out.
# It will be worth it to you, I promise.
#
# I think that anybody that is currently using WCL should be very 
# interested in something like RIL.  Particularly, this can serve
# as a UIL replacement for those using OLIT or ATHENA.
# 
# I am considering makeing RIL availabale for public use,
# Positive/Constructive Negative comments would help me decide...
#
#
Widget Mri {
	wcChildren: main
}

Widget *main {
	wcClassName: XmMainWindow
	wcChildren: menuBar
}

Widget *menuBar {
	wcConstructor:	XmCreateMenuBar
	wcChildren:	fileMenu fileBtn
	*background:slategray
	*foreground:white
}

#
## File menu
#
Widget *fileBtn {
	wcConstructor:    XmCreateCascadeButton
	labelString:  	   File
	wcCallback:    WcSetValueCB(this.subMenuId: ~*fileMenu)\
		WcTranslations(this,\
			#override Shift<Btn1Up>: WcCreateChildrenACT(~,fileBB))
}

Widget *fileMenu {
	wcConstructor: XmCreatePulldownMenu
	wcManaged:     False
	wcChildren:    fileOpenBtn filePropBtn \
		fileSelectAllBtn filePrintBtn fileDeleteBtn \
		showMessagesBtn fileExitBtn
}

Widget *fileBB {
	wcConstructor: XmCreateBulletinBoardDialog
	wcChildren:   rc
	wcCallback:   WcSetValueCB(^.title:File Menu)
	*marginWidth:0
	*marginHeight:0
	*background:slategray
	*foreground:white
	rc.wcClassName: XmRowColumn
	rc.wcChildren: fileOpenBtn filePropBtn \
		fileSelectAllBtn filePrintBtn fileDeleteBtn \
		showMessagesBtn fileExitBtn
}

Resources *XmPushButton {
	activateCallback:  WcTraceCB
}

Widget *fileOpenBtn {
	wcClassName:    XmPushButton
	labelString:      Open ...
}

Widget *filePropBtn {
	wcClassName:    XmPushButton
	labelString:      Properties ...
}

Widget *fileSelectAllBtn {
	wcClassName:    XmPushButton
	labelString:      Select All
}

Widget *filePrintBtn {
	wcClassName:    XmPushButton
	labelString:      Print
}

Widget *fileDeleteBtn {
	wcClassName:    XmPushButton
	labelString:      Delete
}

Widget *showMessagesBtn {
	wcClassName:    XmPushButton
	labelString:      Show Messages
}

Widget *fileExitBtn {
	wcClassName:    XmPushButton
	labelString:      Exit
	activateCallback:  WcExitCB
}