Class: Label (private in BarChart3DWidget

• Inheritance
• Description
• Related information
• Class protocol
  • defaults
  • instance creation
• Instance protocol
  • accessing
  • drawing required
  • initialization
  • private accessing
  • private instance creation

Inheritance:

   Object
   |
   +--DisplayObject
      |
      +--BarChart3DWidget::Label

Package:

stx:libwidg3

Category:

Views-Graphs

Owner:

BarChart3DWidget

Author:

Martin Walser (martin@vercingetorix)

Description:

One Label for a column or a row.


[instance variables:]
    origin               Like with rectangle, the most top left point.
    corner               Like with rectangle, the most bottom right point.
    label                String to print as label.
    font                 Font used for the label.
    depthVector          Depth for turned labels, used only for column-labels.

[class variables:]

Related information:

Class protocol:

 defaultFont

Return a font to draw with.

 computeExtentForTurned: aLabel font: aFont depth: aVector

Compute the extent for a turned label.

 for: aLabel on: aView at: anIndex

Create and return a new display label.
Use default font.

 for: aLabel on: aBarChartView at: anIndex font: aFont

Create and return a horizontal display bar label.
This one are used for the description of rows.

 turnedFor: aLabel on: aBarChartView at: anIndex

Create and return a new display label. The label is turned.
The turn angle is defined by depth vector of the bar chart view.
Use default font.

 turnedFor: aLabel on: aBarChartView at: anIndex font: aFont

Create and return a turned display bar label.
This ones are used for dispcription of columns.

Instance protocol:

 corner

Return the corner.

 origin

Return the origin of this bar.

 textHeight

Return the length of the label-text.

 textLength

Return the length of the label-text.

 textOrigin

Return the label-text origin.
The origin is the start of the baseline.

 textVector

Return a vector with length and
direction of the label text.

 drawIn: aDrawable offset: anOffset

Display yourself on a drawable

 computeBoundingBox

Return the bounding box of this label.
As a side effect, leave the value in the frame variable.

 computeMaxBoundingBox

Compute the maximal bounding box.
Used to calculate content extent.
For labels same like compute bounding box = frame.

 depthVector

Return the depth vector.

 for: aLabel on: aBarChartView at: anIndex font: aFont

Build a normal display bar label.
Private - use only for instance creation.

 turnedFor: aLabel on: aBarChartView at: anIndex font: aFont

Build a turned display bar label.
Private - Use only for instance creation.