Package prezoom.model.GObject

Class GObject

java.lang.Object

prezoom.model.GObject.GObject

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

GImage, GLine, GOval, GRectangle, GText

public abstract class GObject
extends Object
implements Serializable

The base class for all graphical objects

Author:

Zhijie Lan

create date: 2020/11/1

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Shape	drawShape	the actual shape object that shows on the canvas
private GAttributeManager	gAttributeManager	the manager to manage the state of this object

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	GObject(Double x, Double y, Color col, Boolean filled, Integer lineWidth, Double width, Double height, Double x2, Double y2, Boolean visible, String fontName, Integer fontStyle, Double fontSize, String textString)	the constructor will call the GAttributeManager to manage all the attributes

Method Summary

Modifier and Type	Method	Description
abstract void	draw(Graphics2D g)	generate the shape to draw
protected void	drawing(Graphics2D g)	General function to draw all kinds of shapes use GAttributes.getColor() as color.
GAttributeManager	getAttributeManager()	Get the attribute manager of this object
GAttributesI	getCurrentAttributes()	Get the attributes for the current state
Point2D[]	getResizePoints()	get the position of the diagonal points to draw the resize points
boolean	inShape(double mx, double my)	Whether the given position is in this object

Methods inherited from class java.lang.Object

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

Field Detail

gAttributeManager

private final GAttributeManager gAttributeManager

the manager to manage the state of this object

drawShape

protected Shape drawShape

the actual shape object that shows on the canvas

Constructor Detail

GObject

protected GObject(Double x,
                  Double y,
                  Color col,
                  Boolean filled,
                  Integer lineWidth,
                  Double width,
                  Double height,
                  Double x2,
                  Double y2,
                  Boolean visible,
                  String fontName,
                  Integer fontStyle,
                  Double fontSize,
                  String textString)

the constructor will call the GAttributeManager to manage all the attributes

Parameters:

x - location, x

y - location, y

col - paint color

filled - whether filled

lineWidth - width of lines

width - width of the object, if applicable

height - height of the object, if applicable

x2 - x2 of the object, if applicable

y2 - y2 of the object, if applicable

visible - whether visible

fontName - font name

fontSize - font size

fontStyle - plain, bold, or italic

textString - the text content

Method Detail

draw

public abstract void draw(Graphics2D g)

generate the shape to draw

Parameters:

g - the Graphics to paint

drawing

protected void drawing(Graphics2D g)

General function to draw all kinds of shapes use GAttributes.getColor() as color. use GAttributes.getFilled() to depend whether calling Graphics2D.fill(Shape) or Graphics2D.draw(Shape). use GAttributes.getWidth() to set the line style

Parameters:

g - the Graphics to paint

inShape

public boolean inShape(double mx,
                       double my)

Whether the given position is in this object

Parameters:

mx - x

my - y

Returns:

True if in the object

getAttributeManager

public GAttributeManager getAttributeManager()

Get the attribute manager of this object

Returns:

the attribute manager

getCurrentAttributes

public GAttributesI getCurrentAttributes()

Get the attributes for the current state

Returns:

current attributes

getResizePoints

public Point2D[] getResizePoints()

get the position of the diagonal points to draw the resize points

Returns:

diagonal points