Class: SyncedMultiColumnTextView

• Inheritance
• Description
• Related information
• Class protocol
  • defaults
• Instance protocol
  • accessing
  • change & update
  • initialization
  • queries
  • scrolling

Inheritance:

   Object
   |
   +--GraphicsContext
      |
      +--DeviceGraphicsContext
         |
         +--GraphicsMedium
            |
            +--DisplaySurface
               |
               +--SimpleView
                  |
                  +--SyncedMultiColumnTextView
                     |
                     +--ThreeColumnTextView
                     |
                     +--TwoColumnTextView

Package:

stx:libwidg2

Category:

Views-Text

Version:

rev: 1.11 date: 2008/07/24 12:44:31

user: cg

file: SyncedMultiColumnTextView.st directory: libwidg2

module: stx stc-classLibrary: libwidg2

Author:

Claus Gittinger

Description:

abstract superclass for multi-col textviews.
Scrolling is synced, by always scrolling all views.
This type of view is especially useful to show diff-lists,
code-versions, or other one-by-one viewable texts.

Usually, it does not make much sense, to put totally different
or unrelated texts into this kind of view.

See concrete examples in subclasses: TwoColumnTextView, DiffTextView etc.

Related information:

    TwoColumnTextView
    DiffTextView

Class protocol:

 numberOfViews

return the number of the synced subViews.
Usually redefined in subclasses

 textViewClass

return the type of the synced subViews.
Can be redefined in subclasses

Instance protocol:

 textViewClass

 textViewClass: aClass

 update: something with: someArgument from: changedObject

 initialize

 heightOfContents

 innerHeight

 innerWidth

 widthOfContents

 xOriginOfContents

 yOriginOfContents

 scrollDown: nLines

 scrollHorizontalToPercent: p

since the percentage given is based on the widest text
of my subvies, scroll the view containing the widest first,
and take that scroll-offset for the others.

 scrollLeft

 scrollLeft: nPixels

 scrollRight

 scrollRight: nPixels

 scrollToLine: lineNr

 scrollUp: nLines

 scrollVerticalToPercent: p

since the percentage given is based on the longest text
of my subvies, scroll the view containing the longest first,
and take that scroll-offset for the others.

 verticalScrollStep

return the amount to scroll when stepping up/down (also used for mouseWheel).