org.bitstorm.gameoflife
Class CellGridCanvas

java.lang.Object
  java.awt.Component
      java.awt.Canvas
          org.bitstorm.gameoflife.CellGridCanvas

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class CellGridCanvas

extends java.awt.Canvas

Subclass of Canvas, which makes the cellgrid visible. Communicates via CellGrid interface.

Author:

Edwin Martin

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class java.awt.Canvas

java.awt.Canvas.AccessibleAWTCanvas

Nested classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

private CellGrid	cellGrid
private int	cellSize
private boolean	cellUnderMouse
private java.util.Vector	listeners
private int	newCellSize
private Shape	newShape
private java.awt.Graphics	offScreenGraphics
private java.awt.Graphics	offScreenGraphicsDrawed Image, containing the drawed grid.
private java.awt.Image	offScreenImage Image for double buffering, to prevent flickering.
private java.awt.Image	offScreenImageDrawed

Fields inherited from class java.awt.Canvas

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

CellGridCanvas(CellGrid cellGrid, int cellSize)
Constructs a CellGridCanvas.

Method Summary

void	draw(int x, int y) Draw in this cell.
java.awt.Dimension	getMinimumSize() This is the minimum size (size of one cell).
java.awt.Dimension	getPreferredSize() This is the preferred size.
void	paint(java.awt.Graphics g) Draw this generation.
void	resized() The grid is resized (by window resize or zooming).
void	saveCellUnderMouse(int x, int y) Remember state of cell for drawing.
void	setAfterWindowResize(Shape newShape, int newCellSize) Settings to appy after a window-resize.
void	setCellSize(int cellSize) Set cell size (zoom factor)
void	setShape(Shape shape) Draws shape in grid.
void	update(java.awt.Graphics g) Use double buffering.

Methods inherited from class java.awt.Canvas

addNotify, createBufferStrategy, createBufferStrategy, getAccessibleContext, getBufferStrategy

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, validate

Methods inherited from class java.lang.Object

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

Field Detail

cellUnderMouse

private boolean cellUnderMouse

offScreenImage

private java.awt.Image offScreenImage

Image for double buffering, to prevent flickering.

offScreenGraphics

private java.awt.Graphics offScreenGraphics

offScreenImageDrawed

private java.awt.Image offScreenImageDrawed

offScreenGraphicsDrawed

private java.awt.Graphics offScreenGraphicsDrawed

Image, containing the drawed grid.

cellSize

private int cellSize

cellGrid

private CellGrid cellGrid

listeners

private java.util.Vector listeners

newCellSize

private int newCellSize

newShape

private Shape newShape

Constructor Detail

CellGridCanvas

public CellGridCanvas(CellGrid cellGrid,
                      int cellSize)

Constructs a CellGridCanvas.

Parameters:

cellGrid - the GoL cellgrid

cellSize - size of cell in pixels

Method Detail

setCellSize

public void setCellSize(int cellSize)

Set cell size (zoom factor)

Parameters:

cellSize - Size of cell in pixels

resized

public void resized()

The grid is resized (by window resize or zooming). Also apply post-resize properties when necessary

saveCellUnderMouse

public void saveCellUnderMouse(int x,
                               int y)

Remember state of cell for drawing.

Parameters:

x - x-coordinate

y - y-coordinate

draw

public void draw(int x,
                 int y)

Draw in this cell.

Parameters:

x - x-coordinate

y - y-coordinate

update

public void update(java.awt.Graphics g)

Use double buffering.

See Also:

Component.update(java.awt.Graphics)

paint

public void paint(java.awt.Graphics g)

Draw this generation.

See Also:

Component.paint(java.awt.Graphics)

getPreferredSize

public java.awt.Dimension getPreferredSize()

This is the preferred size.

See Also:

Component.getPreferredSize()

getMinimumSize

public java.awt.Dimension getMinimumSize()

This is the minimum size (size of one cell).

See Also:

Component.getMinimumSize()

setAfterWindowResize

public void setAfterWindowResize(Shape newShape,
                                 int newCellSize)

Settings to appy after a window-resize.

Parameters:

newShape - new shape

newCellSize - new cellSize

setShape

public void setShape(Shape shape)
              throws ShapeException

Draws shape in grid.

Parameters:

shape - name of shape

Returns:

true when shape fits, false otherwise

Throws:

ShapeException - if the shape does not fit on the canvas