Copyright (C) 1992, Digital Equipment Corporation                         
 All rights reserved.                                                      
 See the file COPYRIGHT for a full description.                            
 Last modified on Sat Nov 12 16:07:57 PST 1994 by heydon                   
A ToolBox.T is a collection of buttons that activate drawing tools.


IMPORT Drawing, View, Editor;

  T = VBT.Split;

  Button <: ButtonPublic;
  ButtonPublic = ButtonVBT.T OBJECT METHODS
    init(root: View.Root; name: TEXT; tl: Drawing.ArgTool): Button

  SetButton <: SetButtonPublic;
  SetButtonPublic = MenuBtnVBT.T OBJECT METHODS
    init(root: View.Root; name: TEXT; tl: Drawing.SetTool): SetButton
NEW(Button).init(rt, nm, tl) returns a button displaying the name nm that applies the drawing tool tl to the drawing view of root.

The call NEW(SetButton).init(rt, nm, tl) does the same thing, but is activated by selecting it while dragging through a menu.

<* SPEC Update REQUIRES sup(LL) = VBT.mu *>
PROCEDURE Update(t: T; ed: Editor.T; rt: View.Root; n := 0; anon := TRUE);
Replace all children in t after the first n with buttons for the public predicates, (functions), and procedures defined in the editor ed. All of these buttons apply to the root rt. If anon = TRUE, then the MODULE declaration (if any) is ignored, so all the button names will be unqualified.

PROCEDURE Unselect(rt: View.Root);
Unhighlight and unselect (in the drawing view) the currently selected tool rt.currButton.

<* SPEC SwapButton REQUIRES sup(LL) = VBT.mu *>
PROCEDURE SwapButton(t: T; curr, new: Drawing.ArgTool; newLabel: TEXT);
Let b be the button in T with associated tool curr. Install a new button in b's place with the new label newLabel and associated tool new. Requires curr to be a tool in T.

END ToolBox.

interface View is in:

interface Editor is in: