scheduler.view
Class ViewLevel

java.lang.Object
  java.util.Observable
      scheduler.view.ViewLevel

public class ViewLevel
extends java.util.Observable

Class ViewLevel specifies whether a schedule is viewed on per day or a weekly basis.

Author:

Jason Mak (jamak3@gmail.com)

Nested Class Summary

static class

ViewLevel.Level Enums to represent the two view levels.

Field Summary

protected DaysInWeek.Day	day The day value relevant only to a DAILY ViewLevel.
protected ViewLevel.Level	level Daily or weekly view.
protected ViewLevelUI	viewLevelUI The companion view.

Constructor Summary

ViewLevel(View view, ViewLevel.Level level)
Construct this by setting the new view level to the parameter.

Method Summary

DaysInWeek.Day	getDay() Returns the day corresponding to a DAILY ViewLevel.
ViewLevel.Level	getLevel() Return the current view level.
ViewLevelUI	getViewLevelUI() Return the companion view.
void	setDay(DaysInWeek.Day day) Sets the day for a DAILY ViewLevel.
void	setLevel(ViewLevel.Level level) Set the view level.

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

day

protected DaysInWeek.Day day

The day value relevant only to a DAILY ViewLevel.

viewLevelUI

protected ViewLevelUI viewLevelUI

The companion view.

level

protected ViewLevel.Level level

Daily or weekly view.

Constructor Detail

ViewLevel

public ViewLevel(View view,
                 ViewLevel.Level level)

Construct this by setting the new view level to the parameter. The default day for a daily view is Monday. Instantiates a companion view for the new view level.

 pre: ;

 post: this.level' == level && this.day' == DaysInWeek.Day.MON
        && this.viewLevelUI' != null && countObservers() > 0;

                                                                

Parameters:

level - the view level after instantiation

Method Detail

setLevel

public void setLevel(ViewLevel.Level level)

Set the view level. Notifies the schedule view to switch view levels.

 pre: ;

 post: this.level' == level;
                                                                

Parameters:

level - the new view level

getLevel

public ViewLevel.Level getLevel()

Return the current view level.

 post: return == level;
                                                                

Returns:

the current view level

getViewLevelUI

public ViewLevelUI getViewLevelUI()

Return the companion view.

 post: return == viewLevelUI;
                                                                

Returns:

the companion view

setDay

public void setDay(DaysInWeek.Day day)

Sets the day for a DAILY ViewLevel.

 pre: ;

 post: this.day' == day;
                                                                

Parameters:

day - the new day for a daily view

getDay

public DaysInWeek.Day getDay()

Returns the day corresponding to a DAILY ViewLevel.

 post: return == day;
                                                                

Returns:

the day for a daily view