gpdraw
Class SketchPad

java.lang.Object
  DTFrame
      gpdraw.SketchPad

public class SketchPad
extends DTFrame

A SketchPad is a top-level window for use with a DrawingTool object The center of the graphics window is at location 0,0. Positive X is to the right; positive Y is up. Headings (angles) are measured in degrees counterclockwise from the positive X axis.

Example: ======= // Create a 300 by 300 SketchPad with a 125ms drawing delay SketchPad paper = new SketchPad(300, 300, 125); DrawingTool pencil = new DrawingTool(paper);

Field Summary

protected javax.swing.JMenuItem	fastSpeedMI
protected javax.swing.JMenuItem	mediumSpeedMI
protected javax.swing.JMenuItem	noDelaySpeedMI
protected SketchPadPanel	pad
protected javax.swing.JMenuItem	quitFileMI
protected javax.swing.JMenuItem	slowSpeedMI

Constructor Summary

SketchPad(int width, int height)
Constructor.

SketchPad(int width, int height, long delay)
Constructor.

SketchPad(SketchPadPanel sPadPanel)
Constructor.

Method Summary

protected void

menuItemSelected(javax.swing.JMenuItem mi) The application must implement this method in order to handle menu events.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

pad

protected SketchPadPanel pad

quitFileMI

protected javax.swing.JMenuItem quitFileMI

slowSpeedMI

protected javax.swing.JMenuItem slowSpeedMI

mediumSpeedMI

protected javax.swing.JMenuItem mediumSpeedMI

fastSpeedMI

protected javax.swing.JMenuItem fastSpeedMI

noDelaySpeedMI

protected javax.swing.JMenuItem noDelaySpeedMI

Constructor Detail

SketchPad

public SketchPad(SketchPadPanel sPadPanel)

Constructor. A new SketchPad window that is 250 pixels wide by 250 pixels high with a drawing delay of 125ms. Adds the SketchPadPanel sPadPanel to the SketchPad

Parameters:

sPadPanel - SketchPadPanel to be added to the SketchPad

SketchPad

public SketchPad(int width,
                 int height)

Constructor. A new SketchPad window that is widthheight pixels high with a drawing delay of 125ms.

Parameters:

width - width of this SketchPad

height - height of this SketchPad

SketchPad

public SketchPad(int width,
                 int height,
                 long delay)

Constructor. A new SketchPad window that is widthheight pixels high with a drawing delay of delay ms.

Parameters:

width - width of this SketchPad

height - height of this SketchPad

delay - drawing delay (ms)

Method Detail

menuItemSelected

protected void menuItemSelected(javax.swing.JMenuItem mi)

The application must implement this method in order to handle menu events. If no menus are added to the window, this method need not be implemented.

Parameters:

mi - The MenuItem in which the selection occurred.