Xaw3d asciiTextWidget: how to scroll right without scrollbar Post: 302545747

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Special Forums UNIX Desktop Questions & Answers Xaw3d asciiTextWidget: how to scroll right without scrollbar Post 302545747 by Bibi Monash on Tuesday 9th of August 2011 11:07:03 AM

08-09-2011

Registered User

Xaw3d asciiTextWidget: how to scroll right without scrollbar

this is kinda solved
Hi

I need to program an ordinary text field which scrolls to the right when it gets filled. It must be in Xaw3d. I cannot get the asciiTextWidget to do it.

Which resource do you need to set in asciiTextWidget to allow the widget to scroll to the right when typing text in it (without showing the scrollbar: like in the address bar in firefox, or in any other text field in the world)?

In asciiTextWidget, when i fill a (one-line) text widget, the last typed characters become invisible. This is what also happens in eg. the xfig application,and is not what I want.
However,in the xfm file manager popups (like 'install' from the application window), the text scrolls to the right, hiding the letters on the left side. I cannot find anything in the app-defaults which causes this behavior. When I compile xfm myself, it does not allow this scrolling, but xfm from my (Linux abd BSD) distributions does, so I think it must be in the resources somewhere.

Looking it up, in xfm source code, the function call is in createPopupQuestions(). When I try this same function with the text_args from the same source, I still do not get the behavior I need

Code:

static Arg text_args[] = {
  { XtNfromHoriz, (XtArgVal) NULL },
  { XtNfromVert, (XtArgVal) NULL },
  { XtNstring, (XtArgVal) "Text which needs to be scrolled"},
  { XtNlength, (XtArgVal)15   },
  { XtNwidth, (XtArgVal) 200  },
  { XtNtop, XtChainTop },
  { XtNbottom, XtChainTop },
  { XtNleft, XtChainLeft },
  { XtNright, XtChainRight },
  { XtNeditType, XawtextEdit },
  { XtNtype, XawAsciiString },
};



 vert=XtCreateManagedWidget("text", \
       asciiTextWidgetClass, form_widget,text_args , XtNumber(text_args ));

Thanx for any tips

Last edited by Bibi Monash; 08-15-2011 at 07:49 PM.. Reason: solved

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xtsetarg

XtSetArg(3Xt)															     XtSetArg(3Xt)

NAME

       XtSetArg, XtMergeArgLists - set and merge ArgLists

SYNOPSIS

       XtSetArg(arg, name, value)
	       Arg arg;
	       String name;
	       XtArgVal value;

       ArgList XtMergeArgLists(args1, num_args1, args2, num_args2)
	       ArgList args1;
	       Cardinal num_args1;
	       ArgList args2;
	       Cardinal num_args2;

ARGUMENTS

       Specifies  the  name-value  pair to set.  Specifies the first ArgList.  Specifies the second ArgList.  Specifies the number of arguments in
       the first argument list.  Specifies the number of arguments in the second argument list.  Specifies the name of	the  resource.	 Specifies
       the value of the resource if it will fit in an XtArgVal or the address.

DESCRIPTION

       The XtSetArg function is usually used in a highly stylized manner to minimize the probability of making a mistake; for example:

       Arg args[20]; int n;

       n = 0; XtSetArg(args[n], XtNheight, 100);	n++; XtSetArg(args[n], XtNwidth, 200);	       n++; XtSetValues(widget, args, n);

       Alternatively, an application can statically declare the argument list and use XtNumber:

       static Args args[] = {
	       {XtNheight, (XtArgVal) 100},
	       {XtNwidth, (XtArgVal) 200}, }; XtSetValues(Widget, args, XtNumber(args));

       Note  that  you	should	not  use auto-increment or auto-decrement within the first argument to XtSetArg.  XtSetArg can be implemented as a
       macro that dereferences the first argument twice.

       The XtMergeArgLists function allocates enough storage to hold the combined ArgList structures and copies them into it. Note  that  it  does
       not check for duplicate entries. When it is no longer needed, free the returned storage by using XtFree.

SEE ALSO

       XtOffset(3Xt)

       X Toolkit Intrinsics -- C Language Interface

       Xlib -- C Language X Interface

																     XtSetArg(3Xt)