Class: MeterWidget

• Inheritance
• Description
• Instance protocol
  • accessing
  • accessing-color & font
  • aspects
  • drawing
  • event handling
  • hooks
  • initialization
  • private
  • views
• Examples

Inheritance:

   Object
   |
   +--GraphicsMedium
      |
      +--DisplaySurface
         |
         +--SimpleView
            |
            +--View
               |
               +--MeterWidget

Package:

stx:libwidg3

Category:

Views-Misc

Version:

rev: 1.29 date: 2023/07/06 14:34:44

user: cg

file: MeterWidget.st directory: libwidg3

module: stx stc-classLibrary: libwidg3

Description:

hallo erstmal ...

a simple fun-view,
zeigt eine Meter-Uhr wie z.B. ein Tachometer oder so.
The model is a simple valueHolder, holding a number.
This widget can be used as what ever you want.
You can change the label as miles/h or simple as 'speed'.
You can change all Colors which are used by this view.




[instance variables:]
all color variables,
  cChassis, cBackgr, cPointer, cNumber, cScale, cName

meterHolder for the valueHolder
meterWert   for the value who needw the widget to compute the pEndPoint
middlePoint is the middlePoint of the widget
pEndPoint   is the position of the pointer
startNumber is the startnumber of the scale (always 0)
endNumber   is the endnumber of the scale (always 100)
radX        is the radian of the widget
radY        same as radX
startAngle  is the startangle of the scale (0 is horizontal right)
endAngle    is the different between startangle and endangle (im Uhrzeigersinn)
meterName   is the label name
tmp         is the old pointerPosition for delete the pointer

copyright
COPYRIGHT (c) 1998 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.

Instance protocol:

 endAngle

return the value of the instance variable 'endAngle' (automatically generated)

 endAngle: something

set the value of the instance variable 'endAngle' is -delta to startangle (always 270)

 endNumber

return the value of the instance variable 'endNumber' (automatically generated)

 endNumber: something

set the value of the instance variable 'endNumber' (always 100)

 meterHolder

return the value of the instance variable 'meterHolder' (automatically generated)

 meterHolder: something

set the value of the instance variable 'meterHolder' (automatically generated)

 meterName

return the value of the instance variable 'meterName' (automatically generated)

 meterName: something

set the value of the instance variable 'meterName' (automatically generated)

 middlePoint

return the value of the instance variable 'middlePoint' (automatically generated)

 middlePoint: aPoint

set the value of the instance variable 'middlePoint' (automatically generated)

 pEndPoint

return the value of the instance variable 'pEndPoint' (automatically generated)

 pEndPoint: aPoint

set the value of the instance variable 'pEndPoint' (automatically generated)

 pEndPointX: xP y: yP

set the value of the instance variable 'pEndPoint' (automatically generated)

 radX

return the value of the instance variable 'radX' (automatically generated)

 radX: something

set the value of the instance variable 'radX' (automatically generated)

 radY

return the value of the instance variable 'radY' (automatically generated)

 radY: something

set the value of the instance variable 'radY' (automatically generated)

 startAngle

return the value of the instance variable 'startAngle' (automatically generated)

 startAngle: something

set the value of the instance variable 'startAngle' (always 225)

 startNumber

return the value of the instance variable 'startNumber' (automatically generated)

 startNumber: something

set the value of the instance variable 'startNumber' (always 0)

 colorBackgr

return the meterViewDisplay background color

 colorBackgr: aColor

set the meterViewDisplay background color

 colorChassis

return the meterViewDisplay outline color

 colorChassis: aColor

set the meterViewDisplay outline color

 colorName

return the meterViewName color

 colorName: aColor

set the meterViewName color

 colorNumber

return the meterViewNumbers color

 colorNumber: aColor

set the meterViewNumber color

 colorPointer

return the meterViewPointer color

 colorPointer: aColor

set the meterViewPointer color

 colorScale

return the meterViewScale color

 colorScale: aColor

set the meterViewScale color

 meterWert

automatically generated by UIPainter ...

 meterWert: something

set the value of the instance variable 'meterWert' (automatically generated)

 drawChassis

zeichnet den Chassis-Umfang

 drawPointer

zeichnet den Zeiger, endPoint ist der Wert für die Zeigerstellung

 drawScale

zeichnet die Scala-Einteilung

 drawSpeed

 newdrawPointer

meterWert hat sich verändert, Zeiger löschen und neu zeichnen

 redrawSpeed

Delta Endwinkel

 redrawX: x y: y width: w height: h

|savClip|

 sizeChanged: how from: oldExtentOrNil

my view has changed the size (not the contents)

 postBuildWith: aBuilder

automatically generated by UIPainter ...

Usage example(s):

super postBuildWith:aBuilder

 initialize

(comment from inherited method)
must be called if redefined

 initializeVariables

Instanzvariablen initialisieren

 start: begin stop: end

Defaultwerte der Scala - Beginn - und Endnummer -> 0 ... 100

 fillTableX

 fillTableY

 getMeterWidget

Examples:

        MeterWidget new open