Class TableFunctionGraph

Method Details

• setFunction

  public void setFunction(TableFunction function)

  Set the function whose graph is drawn by this TableFunctionGraph. If the value is null, nothing is drawn

• getFunction

  public TableFunction getFunction()

  Get the TableFunction whose graph is drawn by this TableFunctionGraph. If the value is null, then no graph is drawn.

• setOnDrag

  public void setOnDrag(Computable c)

  Specify a controller whose compute() method will be called repeatedly as the user drags one of the points from the table function. This only applies if the "interactive" property is true.

• getOnDrag

  public Computable getOnDrag()

  Get the Computable that is notified as the user drags a point.

• setOnFinishDrag

  public void setOnFinishDrag(Computable c)

  Specify a controller whose compute() method will be called once when the user finishes dragging one of the points from the table function. This only applies if the "interactive" property is true.

• getOnFinishDrag

  public Computable getOnFinishDrag()

  Get the Computable that is notified when the user finishes dragging a point.

• setInteractive

  public void setInteractive(boolean interactive)

  Set the value of the interactive property, which is true if the user can modify the function by dragging the points from the table. The default is false.

• getInteractive

  public boolean getInteractive()

  Get the value of the interactive property, which is true if the user can modify the function by dragging the points from the table.

• setShowPoints

  public void setShowPoints(boolean show)

  Set the showPoints property, which determines whether the points from the table that defines the function are visible as little disks. The default is true;

• getShowPoints

  public boolean getShowPoints()

  Get the showPoints property, which determines whether the points from the table that defines the function are visible as little disks.

• setColor

  public void setColor(Color c)

  Set the color that is used for drawing the graph. The defalt is magenta. If the specified Color value is null, the call to setColor is ignored.

• getColor

  public Color getColor()

  Get the non-null color that is used for drawing the graph.

• setOwnerData

  protected void setOwnerData(DisplayCanvas canvas, CoordinateRect coords)

  Sets the values of member variables canvas and coords. This is designed to be called only by the CoordinateRect class. This overrides Drawable.setOwnerData();

  Overrides:

  setOwnerData in class Drawable

• setFunctionStyle

  public void setFunctionStyle(int style)

  Provided as a convenience. If the function for this TableFunctionGraph is non-null, its style is set to the specified style, and the graph is redrawn. The parameter should be one of the constants TableFunction.SMOOTH, TableFunction.PIECEWISE_LINEAR, TableFunction.STEP, TableFunction.STEP_LEFT, or TableFunction.STEP_RIGHT.

• draw

  public void draw(Graphics g, boolean coordsChanged)

  Override the draw() method from class Drawable to draw the function. This is not meant to be called directly.

  Specified by:

  draw in class Drawable

  Parameters:

  g - The graphics context in which the Drawble is to be drawn. (The drawing can change the color in g, but should not permanently change font, painting mode, etc. Thus, every drawable is responsible for setting the color it wants to use.)

  coordsChanged - Indicates whether the CoordinateRect has changed.

• mousePressed

  public void mousePressed(MouseEvent evt)

  Method required by the MouseListener interface. Defined here to support dragging of points on the function's graph. Not meant to be called directly.

  Specified by:

  mousePressed in interface MouseListener

• mouseReleased

  public void mouseReleased(MouseEvent evt)

  Method required by the MouseListener interface. Defined here to support dragging of points on the function's graph. Not meant to be called directly.

  Specified by:

  mouseReleased in interface MouseListener

• mouseDragged

  public void mouseDragged(MouseEvent evt)

  Method required by the MouseListener interface. Defined here to support dragging of points on the function's graph. Not meant to be called directly.

  Specified by:

  mouseDragged in interface MouseMotionListener

• mouseClicked

  public void mouseClicked(MouseEvent evt)

  Empty method, required by the MouseListener interface.

  Specified by:

  mouseClicked in interface MouseListener

• mouseEntered

  public void mouseEntered(MouseEvent evt)

  Empty method, required by the MouseMotionListener interface.

  Specified by:

  mouseEntered in interface MouseListener

• mouseExited

  public void mouseExited(MouseEvent evt)

  Empty method, required by the MouseMotionListener interface.

  Specified by:

  mouseExited in interface MouseListener

• mouseMoved

  public void mouseMoved(MouseEvent evt)

  Empty method, required by the MouseMotionListener interface.

  Specified by:

  mouseMoved in interface MouseMotionListener