Class: AbstractBorder

• Inheritance
• Description
• Class protocol
  • instance creation
  • queries
• Instance protocol
  • accessing
  • displaying
  • initialization
  • queries

Inheritance:

   Object
   |
   +--AbstractBorder
      |
      +--BeveledBorder
      |
      +--Border
      |
      +--MacButtonBorder
      |
      +--RoundButtonBorder
      |
      +--SimpleBorder

Package:

stx:libview

Category:

Graphics-Support

Version:

rev: 1.15 date: 2024/03/04 12:36:15

user: cg

file: AbstractBorder.st directory: libview

module: stx stc-classLibrary: libview

Description:

Extracted from Border.
Common superclass for border-painters.
This will replace the mixture of window-system supported borders and manually
drawn 3D levels (which is ugly, but served me well for almost 20years now).

copyright
COPYRIGHT (c) 1997 by eXept Software AG
COPYRIGHT (c) 2009 by eXept Software AG
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

Class protocol:

 color: aColor

create a new instance of the receiver with a border of the given color.

 new

return an initialized instance

 width: borderWidth

create a new instance of the receiver with a border of the given width
(and default color).

 width: borderWidth color: aColor

create a new instance of the receiver with a border of the given width
and color.

 isAbstract

Return if this class is an abstract class.
True is returned here for myself only; false for subclasses.
Abstract subclasses must redefine this again.

Instance protocol:

 color

get the color; nil if there is no single color

 color: aColor

set the color

 level

get the 3D level

 width

get the width

 width: aNumber

set the width

 width: aWidth color: aColor

 displayOn: aGC forDisplayBox: aRectangle

display the borders represented by the receiver in the specified rectangle.
The gc is restored after the draw.

 initialize

 allSidesEqual: aSmallInteger

true if all four sides have the same border width;
always true here - provided for compatibility

 bottomMargin

return the bottom inset.
That is the number of pixels that an instance of me requires at the bottom,
eg. the inset of the view's contents

 dependents

 dependents: aDependentsCollection

(comment from inherited method)
set the collection of dependents.
The default implementation here uses a global Dictionary to store
dependents which may be too slow for high frequency change&update.
Therefore, some classes (Model) redefine this for better performance.

 displayBoxFor: aRectangle

return a rectangle representing the overall display box of a component
bordered by the receiver, which has bounds of aRectangle.
That is, the argument outset by the receiver's borders.

 insetDisplayBoxFor: aRectangle

return a rectangle representing the display box of a component
bordered by the receiver in the outer bounds, aRectangle.
That is, the argument inset by the receiver's borders.

 leftMargin

return the left inset.
That is the number of pixels that an instance of me requires at the left,
eg. the inset of the view's contents

 nonWeakDependents

 rightMargin

return the right inset.
That is the number of pixels that an instance of me requires at the right,
eg. the inset of the view's contents

 topMargin

return the top inset.
That is the number of pixels that an instance of me requires at the top,
eg. the inset of the view's contents