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## Class Canvas

    java.lang.Object
      java.awt.Component
          java.awt.Container
              javax.swing.JComponent
                  javax.swing.JPanel
                      Canvas

All Implemented Interfaces:
  java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible

    public class Canvas

extends javax.swing.JPanel
implements java.awt.event.MouseListener, java.awt.event.MouseMotionListener

TODO Put here a description of what this class does.

Author:
  ian. Created Mar 22, 2008.
See Also:
  Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JPanel
`javax.swing.JPanel.AccessibleJPanel`

Nested classes/interfaces inherited from class javax.swing.JComponent
`javax.swing.JComponent.AccessibleJComponent`

Nested classes/interfaces inherited from class java.awt.Container
`java.awt.Container.AccessibleAWTContainer`

Nested classes/interfaces inherited from class java.awt.Component
`java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy`

Field Summary

Fields inherited from class javax.swing.JComponent
`accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW`

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
`Canvas(int x, int y, Paint a, Brush b)` creates a new Canvas with width x, height y, and the painter a, with the default brush being b

Method Summary
`void` | `deselect(int x, int y)` This deselects the pixel at coordinates at (x,y)
`Brush` | `getBrush()` allows a brush to be grabbed
`java.awt.image.BufferedImage` | `getImage()` gets the Current Image from the Canvas
`Paint` | `getPaint()` gets the current Paint object
`java.awt.Shape` | `getShape()` This is an accessor for the preview shape
`boolean` | `isSelected(int x, int y)` TODO return whether or not the pixel is selected
`void` | `mouseClicked(java.awt.event.MouseEvent e)`
`void` | `mouseDragged(java.awt.event.MouseEvent e)`
`void` | `mouseEntered(java.awt.event.MouseEvent e)`
`void` | `mouseExited(java.awt.event.MouseEvent e)`
`void` | `mouseMoved(java.awt.event.MouseEvent e)`
`void` | `mousePressed(java.awt.event.MouseEvent e)`
`void` | `mouseReleased(java.awt.event.MouseEvent e)`
`void` | `paintComponent(java.awt.Graphics g)`
`void` | `select(int x, int y)` This selects the pixel at coordinates at (x,y)
`void` | `setBack()` returns the canvas' image to one state previous
`void` | `setBrush(Brush b)` TODO sets the current brush to b
`void` | `setForward()`
`void` | `setImage(java.awt.image.BufferedImage b)` Sets the Canvas' image to the given image
`void` | `setShape(java.awt.Shape s)` this sets the shape that drawn on top of the image but not on the canvas i.e.
`void` | `setZoom(float scale)`

Methods inherited from class javax.swing.JPanel
`getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI`

Methods inherited from class javax.swing.JComponent
`addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update`

Methods inherited from class java.awt.Container
`add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree`

Methods inherited from class java.awt.Component
`action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### Canvas

    public Canvas(int x,
                  int y,
                  Paint a,
                  Brush b)

  creates a new Canvas with width x, height y, and the painter a, with the default brush being b

  Parameters:
    `x` -
    `y` -
    `a` -
    `b` -

Method Detail

### paintComponent

    public void paintComponent(java.awt.Graphics g)

  Overrides:
    `paintComponent` in class `javax.swing.JComponent`

### mouseClicked

    public void mouseClicked(java.awt.event.MouseEvent e)

  Specified by:
    `mouseClicked` in interface `java.awt.event.MouseListener`

### mouseEntered

    public void mouseEntered(java.awt.event.MouseEvent e)

  Specified by:
    `mouseEntered` in interface `java.awt.event.MouseListener`

### mouseExited

    public void mouseExited(java.awt.event.MouseEvent e)

  Specified by:
    `mouseExited` in interface `java.awt.event.MouseListener`

### mousePressed

    public void mousePressed(java.awt.event.MouseEvent e)

  Specified by:
    `mousePressed` in interface `java.awt.event.MouseListener`

### mouseReleased

    public void mouseReleased(java.awt.event.MouseEvent e)

  Specified by:
    `mouseReleased` in interface `java.awt.event.MouseListener`

### mouseDragged

    public void mouseDragged(java.awt.event.MouseEvent e)

  Specified by:
    `mouseDragged` in interface `java.awt.event.MouseMotionListener`

### mouseMoved

    public void mouseMoved(java.awt.event.MouseEvent e)

  Specified by:
    `mouseMoved` in interface `java.awt.event.MouseMotionListener`

### getPaint

    public Paint getPaint()

  gets the current Paint object

  Returns:
    the Paint this canvas references

### getImage

    public java.awt.image.BufferedImage getImage()

  gets the Current Image from the Canvas

  Returns:
    the current Image

### setImage

    public void setImage(java.awt.image.BufferedImage b)

  Sets the Canvas' image to the given image

  Parameters:
    `b` - the Image to be used

### setBrush

    public void setBrush(Brush b)

  TODO sets the current brush to b

  Parameters:
    `b` -

### getBrush

    public Brush getBrush()

  allows a brush to be grabbed

  Returns:
    the selected brush

### isSelected

    public boolean isSelected(int x,
                              int y)

  TODO return whether or not the pixel is selected

  Parameters:
    `x` -
    `y` -
  Returns:
    selected?

### select

    public void select(int x,
                       int y)

  This selects the pixel at coordinates at (x,y)

  Parameters:
    `x` - X-Coordinate
    `y` - Y-Coordinate

### deselect

    public void deselect(int x,
                         int y)

  This deselects the pixel at coordinates at (x,y)

  Parameters:
    `x` - X-Coordinate
    `y` - Y-Coordinate

### setShape

    public void setShape(java.awt.Shape s)

  this sets the shape that drawn on top of the image but not on the canvas i.e. Preview of drawn shape

  Parameters:
    `s` - the shape for the preview

### getShape

    public java.awt.Shape getShape()

  This is an accessor for the preview shape

  Returns:
    the shape

### setForward

    public void setForward()

### setBack

    public void setBack()

  returns the canvas' image to one state previous

### setZoom

    public void setZoom(float scale)

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