Package prezoom.controller

Class GAttributeManager

java.lang.Object

prezoom.controller.GAttributeManager

All Implemented Interfaces:

Serializable

public class GAttributeManager
extends Object
implements Serializable

This class is the manager to manage the state related functions for the attributes of graphical objects. Each GObject has a manager to manage its own attributes.

Author:

Zhijie Lan

create date: 2020/11/6

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private GAttributesI	cur_Attributes	the attribute for the current state
(package private) ArrayList<GAttributesI>	state_Attributes_list	the list that store all attributes for each state.

Constructor Summary

Constructors

Constructor	Description
GAttributeManager(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)	To construct a manager, the object's attributes will be generated and duplicated from the current state to the end state, but attributes for states before the current state are set to 0, which means the object only exists from the current state.

Method Summary

Modifier and Type	Method	Description
void	deleteAttributeState(int state)	delete the attribute of a given state
void	finishDrawingNew()	after drawing, add cloned attributes to the following states
GAttributesI	getCur_Attributes()	get the object's attribute for the current state
private int	getCurrent_State()	get the state from the state manager
void	insertAttributeState()	insert a new attribute of a new state into state_Attributes_list at the current state index.
void	updateCur_Attributes()	update the cur_Attributes.

Methods inherited from class java.lang.Object

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

Field Detail

state_Attributes_list

ArrayList<GAttributesI> state_Attributes_list

the list that store all attributes for each state.

cur_Attributes

private GAttributesI cur_Attributes

the attribute for the current state

Constructor Detail

GAttributeManager

public GAttributeManager(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)

To construct a manager, the object's attributes will be generated and duplicated from the current state to the end state, but attributes for states before the current state are set to 0, which means the object only exists from the current state.

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

getCurrent_State

private int getCurrent_State()

get the state from the state manager

Returns:

the current state number

getCur_Attributes

public GAttributesI getCur_Attributes()

get the object's attribute for the current state

Returns:

the attribute

updateCur_Attributes

public void updateCur_Attributes()

update the cur_Attributes. and add interpolation from previous value to the current value skip if there is no attribute for the current state

insertAttributeState

public void insertAttributeState()

insert a new attribute of a new state into state_Attributes_list at the current state index. The new attribute will clone the previous info of the current state

deleteAttributeState

public void deleteAttributeState(int state)

delete the attribute of a given state

Parameters:

state - the state to be deleted

finishDrawingNew

public void finishDrawingNew()

after drawing, add cloned attributes to the following states