Class main_canvas

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

All Implemented Interfaces:

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

public class main_canvas
extends javax.swing.JPanel

The class main_canvas represents a blank rectangular area of the screen onto which the application can draw or from which the application can trap input events from the user. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

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.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

boolean	brush Default brush false.
java.awt.Font	current_font Font object that represents a current font style.
java.awt.Stroke	current_stroke Stroke object that represents the current stroke.
int	currentLayer current layer.
boolean	curve Default curve false.
boolean	elipse Default elipse false.
boolean	eraser Default eraser false.
(package private) java.awt.Graphics2D	gd Graphics2D object which represents the canvas.
boolean	grayscale Color scale or gray scale.
int	heig height of canvas.
javax.swing.JLayeredPane	layeredPane JLayeredPane object.
java.util.LinkedList	layerList LinkedList object that contains the layers.
java.awt.Color	left_color Color object that represents left mouse click event color.
boolean	letter Default letter false.
boolean	line Default line false.
java.util.LinkedList	list LinkedList object that contains the LinkedLists of BufferedImages for layers separately.
javax.swing.ImageIcon	main_icon Shows all image icons on TerpPaint.
java.awt.image.BufferedImage	main_image BufferedImage object that represents main image.
int	max_list_len max_list_len that indicates the max list length.
boolean	medicine Default medicine false.
java.util.Vector	nameList Vector object holding the Layer names.
(package private) static double	oldZoomFactor Sets oldZoomFactor default 1.0.
boolean	paint Default paint false.
boolean	pencil Default pencil false.
ScrollablePicture	picture Image that can be scrolled by setting either the horizontal scroll bar or the vertical scroll bar.
javax.swing.JScrollPane	pictureScrollPane Provides scrolling functionality for the image.
java.util.Vector	place_list Place[i] is the spot in the BufferedImage linked list for the ith layer.
boolean	polygon Default polygon false.
java.awt.Color	right_color Color object that represents right mouse click event color.
boolean	rounded_rectangle Default rouned_rectangle false.
boolean	select Default select false.
boolean	selectall Default selectall false.
boolean	spray Default spray false.
boolean	square Default square false.
(package private) java.awt.geom.AffineTransform	t AffineTransform object for various transformations.
java.awt.image.BufferedImage	temp_x BufferedImage object that is for temporary storage.
int	widt width of the canvas.
boolean	zoom Default zoom false.
double	zoomFactor Sets zoomFactor default 1.0.

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

main_canvas()
Starts loading the image icons.

main_canvas(int h, int w)
main_canvas constructor that creates a canvas of the size according to params.

Method Summary

void	addLayer() This method adds a new layer.
int	canvasScale(int coord) This method returns the coordinate.
void	changeLayer(java.lang.String correct) This method changes to another layer.
void	clear() This method sets the main image with the default size and color.
void	drawIt(java.awt.Shape s) This method creates and draws the graphics and adds to the image list.
void	flattenLayer(javax.swing.JDialog window) This method flattens all layers into one.
java.awt.image.BufferedImage	getBufferedImage() Returns the main image.
java.awt.image.BufferedImage	getCopy(java.awt.image.BufferedImage in) Returns a copy of main image object.
boolean	getGrayscale() Returns the grayscale or colorscale There are no OS/Hardware dependencies and no variances.
double	getOldZoom() Returns the size of the old zoom factor.
double	getZoom() Returns the size of the zoom factor.
void	invertColors() This method inverts the colors for drawing with the graphics context.
void	itemStateChanged(java.awt.event.ItemEvent e) This method responds to checkbox events.
boolean	madeChanges() Returns true if any changes occur more than once; otherwise false.
static void	main(java.lang.String[] s) Creates the main drawing frame.
void	moveBottom(int number) This method used to move a layer to the bottom of the layer stack.
void	moveDown(int number) This method used to move a layer down in the layer stack.
void	moveFront(int number) This method used to move a layer to the top of the layer stack.
void	moveUp(int number) This method used to move a layer up in the layer stack.
void	noChanges() This method sets linked list to size 0, so that undo and redo are disabled.
void	paint(java.awt.Graphics g) This method sets the main image scale and draw image if the main image is not null.
boolean	redo() This method repeats the last drawing action.
void	removeLayer(int index) This method removes a layer.
void	resetLayer() This method resets the layer.
void	resizeImage(int width, int height) This method resizes the image.
void	setBufferedImage(java.awt.image.BufferedImage in) This method sets the main image.
void	setFont(java.awt.Font f) This method sets a current font style.
void	setLeftColor(java.awt.Color in) This method sets the left mouse button color.
void	setOldZoom(double factor) This method sets the size of the old zoom factor.
void	setRightColor(java.awt.Color in) This method sets the right mouse button color.
void	setStroke(int in) This method sets the characteristics of the rectangle's border or the lines for any other shape.
void	setZoom(double factor) This method sets the zoomFactor.
void	sizeImage(int width, int height) This method resizes the image.
void	undo() This method cancels the last drawing action.

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, 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, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, 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, 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

Field Detail

layeredPane

public javax.swing.JLayeredPane layeredPane

JLayeredPane object.

max_list_len

public int max_list_len

max_list_len that indicates the max list length.

layerList

public java.util.LinkedList layerList

LinkedList object that contains the layers.

nameList

public java.util.Vector nameList

Vector object holding the Layer names.

currentLayer

public int currentLayer

current layer.

list

public java.util.LinkedList list

LinkedList object that contains the LinkedLists of BufferedImages for layers separately.

main_image

public java.awt.image.BufferedImage main_image

BufferedImage object that represents main image.

temp_x

public java.awt.image.BufferedImage temp_x

BufferedImage object that is for temporary storage.

left_color

public java.awt.Color left_color

Color object that represents left mouse click event color.

right_color

public java.awt.Color right_color

Color object that represents right mouse click event color.

grayscale

public boolean grayscale

Color scale or gray scale.

current_stroke

public java.awt.Stroke current_stroke

Stroke object that represents the current stroke.

current_font

public java.awt.Font current_font

Font object that represents a current font style.

place_list

public java.util.Vector place_list

Place[i] is the spot in the BufferedImage linked list for the ith layer.

line

public boolean line

Default line false. true when this tool is chosen.

curve

public boolean curve

Default curve false. true when this tool is chosen.

rounded_rectangle

public boolean rounded_rectangle

Default rouned_rectangle false. true when this tool is chosen.

square

public boolean square

Default square false. true when this tool is chosen.

polygon

public boolean polygon

Default polygon false. true when this tool is chosen.

elipse

public boolean elipse

Default elipse false. true when this tool is chosen.

selectall

public boolean selectall

Default selectall false. true when this tool is chosen.

eraser

public boolean eraser

Default eraser false. true when this tool is chosen.

paint

public boolean paint

Default paint false. true when this tool is chosen.

medicine

public boolean medicine

Default medicine false. true when this tool is chosen.

zoom

public boolean zoom

Default zoom false. true when this tool is chosen.

pencil

public boolean pencil

Default pencil false. true when this tool is chosen.

brush

public boolean brush

Default brush false. true when this tool is chosen.

spray

public boolean spray

Default spray false. true when this tool is chosen.

letter

public boolean letter

Default letter false. true when this tool is chosen.

select

public boolean select

Default select false. true when this tool is chosen.

zoomFactor

public double zoomFactor

Sets zoomFactor default 1.0.

oldZoomFactor

static double oldZoomFactor

Sets oldZoomFactor default 1.0.

pictureScrollPane

public javax.swing.JScrollPane pictureScrollPane

Provides scrolling functionality for the image. Scrollars are shown only if they are required.

picture

public ScrollablePicture picture

Image that can be scrolled by setting either the horizontal scroll bar or the vertical scroll bar.

main_icon

public javax.swing.ImageIcon main_icon

Shows all image icons on TerpPaint.

widt

public int widt

width of the canvas.

heig

public int heig

height of canvas.

gd

java.awt.Graphics2D gd

Graphics2D object which represents the canvas.

t

java.awt.geom.AffineTransform t

AffineTransform object for various transformations.

Constructor Detail

main_canvas

public main_canvas()

Starts loading the image icons. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

main_canvas

public main_canvas(int h,
                   int w)

main_canvas constructor that creates a canvas of the size according to params.

Parameters:

w - width param

h - height param

Method Detail

itemStateChanged

public void itemStateChanged(java.awt.event.ItemEvent e)

This method responds to checkbox events. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

e - provides the functionalities of ItemEvent

madeChanges

public boolean madeChanges()

Returns true if any changes occur more than once; otherwise false. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Returns:

true if any changes occur more than once; otherwise false.

noChanges

public void noChanges()

This method sets linked list to size 0, so that undo and redo are disabled. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

clear

public void clear()

This method sets the main image with the default size and color. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

setStroke

public void setStroke(int in)

This method sets the characteristics of the rectangle's border or the lines for any other shape. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

in - the border size of the line.

setFont

public void setFont(java.awt.Font f)

This method sets a current font style. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Overrides:

setFont in class javax.swing.JComponent

Parameters:

f - contains the specified font, style and size.

drawIt

public void drawIt(java.awt.Shape s)

This method creates and draws the graphics and adds to the image list. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

s - specifies the bounding of the image to display.

resizeImage

public void resizeImage(int width,
                        int height)

This method resizes the image. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

width - a new width size of the image.

height - a new height size of the image.

sizeImage

public void sizeImage(int width,
                      int height)

This method resizes the image. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

width - new width

height - new height

setBufferedImage

public void setBufferedImage(java.awt.image.BufferedImage in)

This method sets the main image. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

in - contains information of buffered image.

See Also:

getBufferedImage()

getBufferedImage

public java.awt.image.BufferedImage getBufferedImage()

Returns the main image. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Returns:

the buffereImage object.

See Also:

setBufferedImage(java.awt.image.BufferedImage)

getCopy

public java.awt.image.BufferedImage getCopy(java.awt.image.BufferedImage in)

Returns a copy of main image object. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

in - contains information of buffered image.

Returns:

the copy of buffereImage object.

setLeftColor

public void setLeftColor(java.awt.Color in)

This method sets the left mouse button color. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

in - the color to be the left_color.

setRightColor

public void setRightColor(java.awt.Color in)

This method sets the right mouse button color. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

in - the color to be the right_color.

paint

public void paint(java.awt.Graphics g)

This method sets the main image scale and draw image if the main image is not null. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Overrides:

paint in class javax.swing.JComponent

Parameters:

g - supports Graphics2D object to provide the functionality of it.

undo

public void undo()

This method cancels the last drawing action. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

redo

public boolean redo()

This method repeats the last drawing action. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Returns:

true if redo is performed, false if not performed

canvasScale

public int canvasScale(int coord)

This method returns the coordinate. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

coord - the scale of the coordinate.

Returns:

the integer coordinate.

setZoom

public void setZoom(double factor)

This method sets the zoomFactor. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

factor - the size of the zoom factor.

See Also:

getZoom()

setOldZoom

public void setOldZoom(double factor)

This method sets the size of the old zoom factor. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

factor - the size of the zoom to be the old zoom factor.

See Also:

getOldZoom()

getZoom

public double getZoom()

Returns the size of the zoom factor. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Returns:

the size of the zoom factor.

See Also:

setZoom(double)

getOldZoom

public double getOldZoom()

Returns the size of the old zoom factor. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Returns:

the size of the old zoom factor.

See Also:

setOldZoom(double)

getGrayscale

public boolean getGrayscale()

Returns the grayscale or colorscale There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Returns:

the size of the zoom factor.

invertColors

public void invertColors()

This method inverts the colors for drawing with the graphics context. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

moveUp

public void moveUp(int number)

This method used to move a layer up in the layer stack.

Parameters:

number - an int to represent layer number to move

moveDown

public void moveDown(int number)

This method used to move a layer down in the layer stack.

Parameters:

number - an int to represent layer number to move

moveFront

public void moveFront(int number)

This method used to move a layer to the top of the layer stack.

Parameters:

number - an int to represent layer number to move

moveBottom

public void moveBottom(int number)

This method used to move a layer to the bottom of the layer stack.

Parameters:

number - an int to represent layer number to move

changeLayer

public void changeLayer(java.lang.String correct)

This method changes to another layer. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

correct - correct layer to be displayed

addLayer

public void addLayer()

This method adds a new layer. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

resetLayer

public void resetLayer()

This method resets the layer. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

removeLayer

public void removeLayer(int index)

This method removes a layer. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

index - index of the layer to be removed

flattenLayer

public void flattenLayer(javax.swing.JDialog window)

This method flattens all layers into one. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

window - Shows the progress while flattening

main

public static void main(java.lang.String[] s)

Creates the main drawing frame. There are no OS/Hardware dependencies and no variances. There is no need for any security constraints and no references to external specifications.

Parameters:

s - the command line argument.