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Class guinea.ui.GradeBar

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container
                   |
                   +----guinea.ui.BaseGrader
                           |
                           +----guinea.ui.GradeBar

public class GradeBar
extends BaseGrader
implements AdjustmentListener, QuestionInterface, ControlInterface, PropertyLoader, Serializable

GradeBar is a UI component with a continuous scale. The grading slider is implemented with Java's Scrollbar component. The minimum and maximum values of the grade can be specified as well as number of decimal places and possible "anchors".

Variable Index

· scrollBar: The Scrollbar object for giving grade.

Constructor Index

· GradeBar(): Create a new grade bar with default grade parameters and no question.
· GradeBar(double, double, int): Create a new grade bar with given parameters.
· GradeBar(double, double, int, String): Create a new grade bar with given parameters.
· GradeBar(String): Create a new grade bar with default grade parameters.

Method Index

· getAdjustable()
· getAdjustable(Component)
· getAdjustableComponent()
· setAdjustableValues(int): Update values for the adjustable component.

Variables

· scrollBar

 protected Scrollbar scrollBar

The Scrollbar object for giving grade.

Constructors

· GradeBar

 public GradeBar()

Create a new grade bar with default grade parameters and no question.

· GradeBar

 public GradeBar(String qtext)

Create a new grade bar with default grade parameters.

Parameters:: qtext - Text of question.

· GradeBar

 public GradeBar(double minVal,
                 double maxVal,
                 int decimals)

Create a new grade bar with given parameters.

Parameters:: minVal - minimum value of grade.; maxVal - maximum value of grade.; decimals - number of decimals.

· GradeBar

 public GradeBar(double minVal,
                 double maxVal,
                 int decimals,
                 String qtext)

Create a new grade bar with given parameters.

Parameters:: minVal - minimum value of grade.; maxVal - maximum value of grade.; decimals - number of decimals.; qtext - text of question.

Methods

· getAdjustableComponent

 public Component getAdjustableComponent()

Overrides:: getAdjustableComponent in class BaseGrader

· getAdjustable

 public Adjustable getAdjustable(Component c)

Overrides:: getAdjustable in class BaseGrader

· getAdjustable

 public Adjustable getAdjustable()

Overrides:: getAdjustable in class BaseGrader

· setAdjustableValues

 protected void setAdjustableValues(int value)

Update values for the adjustable component.

Overrides:: setAdjustableValues in class BaseGrader

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