vgp.tutor.updatePanel
Class MyClass

java.lang.Object
  |
  +--jv.object.PsObject
        |
        +--vgp.tutor.updatePanel.MyClass

All Implemented Interfaces:

java.lang.Cloneable, PsUpdateIf, java.io.Serializable

public class MyClass

extends PsObject

Tutorial class for combined used of JavaView update mechanism and AWT 1.1 events. Any subclass of PsObject may have an associated info panel for inspecting itself in an interactive panel. The info panel may either be supplied by a superclass, or by providing a panel whose class name has appended '_IP' to the name of the class which shall be inspected. In this tutorial, the base class is MyClass and its panel is MyClass_IP. Invoking the method getInfoPanel() returns an instance of the panel, as done in the main(String []), which can be inserted in a frame or in other panels. In JavaView, the panel is usually added to the control window.

The base class and its panel communicate via the methods update(Object) once the base class is registered in the panel as its parent. This registration is done in the super class PsObject after the first call of getInfoPanel().

Base class and its panel separate the data and the widget user interface. The base class contains the data and is usually embedded in a program, while the panel contains the widget representation. The panel is just attached to the base class and only accessible through it.

Version:

15.08.99, 1.00 revised (kp)
15.08.99, 1.00 created (kp)

Author:

Konrad Polthier

See Also:

PsObject, PsUpdateIf, Serialized Form

Field Summary

protected int	m_selectedTopic Selected entry in list.
protected boolean	m_state Boolean flag.
protected java.lang.String	m_text Text string.
protected java.lang.String[]	m_topics Entries of a list.

Fields inherited from class jv.object.PsObject

HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_MATERIAL_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_SELECTED, IS_USED, m_infoPanel, m_name, m_panelList, m_parent, m_tag, m_updateList, NUM_TAGS

Constructor Summary

MyClass()
Constructor.

Method Summary

int	getSelectedTopic()
boolean	getState()
java.lang.String	getText()
java.lang.String[]	getTopics()
void	init() Set values of variables.
static void	main(java.lang.String[] args) Standalone application support.
void	setSelectedTopic(int ind)
void	setState(boolean flag)
void	setText(java.lang.String text)
boolean	update(java.lang.Object event) Update the class whenever a child has changed.

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, clearTag, clone, clone, clone, copy, getFather, getInfoPanel, getInspector, getName, getNumObjects, hasInspector, hasTag, hasUpdateListener, instanceOf, instanceOf, removeInspector, removeUpdateListener, setName, setParent, setTag, toString, updatePanels

Methods inherited from class java.lang.Object

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

Field Detail

m_state

protected boolean m_state

Boolean flag.

m_topics

protected java.lang.String[] m_topics

Entries of a list.

m_selectedTopic

protected int m_selectedTopic

Selected entry in list.

m_text

protected java.lang.String m_text

Text string.

Constructor Detail

MyClass

public MyClass()

Constructor.

Method Detail

init

public void init()

Set values of variables. Method is also used to reset the class.

Overrides:

init in class PsObject

update

public boolean update(java.lang.Object event)

Update the class whenever a child has changed. Method is usually invoked from the children.

Overrides:

update in class PsObject

Following copied from class: jv.object.PsObject

See Also:

PsObject.setParent(PsUpdateIf), PsObject.getFather(), PsObject.addUpdateListener(PsUpdateIf)

getState

public boolean getState()

setState

public void setState(boolean flag)

getTopics

public java.lang.String[] getTopics()

getSelectedTopic

public int getSelectedTopic()

setSelectedTopic

public void setSelectedTopic(int ind)

getText

public java.lang.String getText()

setText

public void setText(java.lang.String text)

main

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

Standalone application support.