Package edu.hws.jcm.awt
Class MessagePopup
- java.lang.Object
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- edu.hws.jcm.awt.MessagePopup
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- All Implemented Interfaces:
ErrorReporter
,java.awt.event.ActionListener
,java.util.EventListener
public class MessagePopup extends java.lang.Object implements java.awt.event.ActionListener, ErrorReporter
The class MessagePopup represents a Window that pops up to display an error message. A MessagePopup object is created by a "source" component. If that component is contained in a Frame, then the popup will be a modal dialog box with that Parent. If the component is not in a Frame (or is null), then an independent Frame is used. The message box is popped up when reportError() is called. It is closed either when the user clicks the OK button, or if clearErrorMessage() is called.
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Constructor Summary
Constructors Constructor Description MessagePopup(java.awt.Component source)
Create a MessagePopup with the give source component.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
actionPerformed(java.awt.event.ActionEvent evt)
Respond when user clicks OK.void
clearErrorMessage()
Clear the error message and close the window.java.lang.String
getErrorMessage()
Get the currently displayed error message.void
setErrorMessage(Controller c, java.lang.String message)
Show the given message in a dialog box or independent window, depending on whether the source component is contained in a Frame or not.
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Method Detail
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setErrorMessage
public void setErrorMessage(Controller c, java.lang.String message)
Show the given message in a dialog box or independent window, depending on whether the source component is contained in a Frame or not.- Specified by:
setErrorMessage
in interfaceErrorReporter
- Parameters:
c
- The Controller that calls this method, or null if it is not called by a Controller. (The Controller, if any, will be notified when the error message is cleared.)message
- The message to display.
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getErrorMessage
public java.lang.String getErrorMessage()
Get the currently displayed error message. The return value is null if no error message is being displayed.- Specified by:
getErrorMessage
in interfaceErrorReporter
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clearErrorMessage
public void clearErrorMessage()
Clear the error message and close the window. This can be called from outside this class. It is called automatically when the user clicks the OK button or close box of the window that displays the error message.- Specified by:
clearErrorMessage
in interfaceErrorReporter
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actionPerformed
public void actionPerformed(java.awt.event.ActionEvent evt)
Respond when user clicks OK. This is not meant to be called directly.- Specified by:
actionPerformed
in interfacejava.awt.event.ActionListener
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