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Java Source Code / Java Documentation » Swing Library » abeille forms designer » com.jgoodies.forms.util 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   com.jgoodies.forms.util.AbstractUnitConverter
      com.jgoodies.forms.util.DefaultUnitConverter

DefaultUnitConverter
final public class DefaultUnitConverter extends AbstractUnitConverter (Code)
This is the default implementation of the UnitConverter interface. It converts horizontal and vertical dialog base units to pixels.

The horizontal base unit is equal to the average width, in pixels, of the characters in the system font; the vertical base unit is equal to the height, in pixels, of the font. Each horizontal base unit is equal to 4 horizontal dialog units; each vertical base unit is equal to 8 vertical dialog units.

The DefaultUnitConverter computes dialog base units using a default font and a test string for the average character width. You can configure the font and the test string via the bound Bean properties defaultDialogFont and averageCharacterWidthTestString.
version:
   $Revision: 1.2 $
author:
   Karsten Lentzsch
See Also:   UnitConverter
See Also:   com.jgoodies.forms.layout.Size
See Also:   com.jgoodies.forms.layout.Sizes





Method Summary
final public synchronized  voidaddPropertyChangeListener(PropertyChangeListener listener)
     Adds a PropertyChangeListener to the listener list.
final public synchronized  voidaddPropertyChangeListener(String propertyName, PropertyChangeListener listener)
     Adds a PropertyChangeListener to the listener list for a specific property.
public  StringgetAverageCharacterWidthTestString()
     Returns the string used to compute the average character width.
public  FontgetDefaultDialogFont()
     Lazily creates and returns the dialog font used to compute the dialog base units.
protected  doublegetDialogBaseUnitsX(Component component)
     Returns the cached or computed horizontal dialog base units.
protected  doublegetDialogBaseUnitsY(Component component)
     Returns the cached or computed vertical dialog base units for the given component.
public static  DefaultUnitConvertergetInstance()
     Lazily instantiates and returns the sole instance.
final public synchronized  voidremovePropertyChangeListener(PropertyChangeListener listener)
     Removes a PropertyChangeListener from the listener list.
final public synchronized  voidremovePropertyChangeListener(String propertyName, PropertyChangeListener listener)
     Removes a PropertyChangeListener from the listener list for a specific property.
public  voidsetAverageCharacterWidthTestString(String newTestString)
     Sets a string that will be used to compute the average character width. By default it is initialized to "X".
public  voidsetDefaultDialogFont(Font newFont)
     Sets a dialog font that will be used to compute the dialog base units.



Method Detail
addPropertyChangeListener
final public synchronized void addPropertyChangeListener(PropertyChangeListener listener)(Code)
Adds a PropertyChangeListener to the listener list. The listener is registered for all bound properties of this class.

If listener is null, no exception is thrown and no action is performed.
Parameters:
  listener - the PropertyChangeListener to be added
See Also:   DefaultUnitConverter.removePropertyChangeListener(PropertyChangeListener)
See Also:   DefaultUnitConverter.removePropertyChangeListener(String,PropertyChangeListener)
See Also:   DefaultUnitConverter.addPropertyChangeListener(String,PropertyChangeListener)




addPropertyChangeListener
final public synchronized void addPropertyChangeListener(String propertyName, PropertyChangeListener listener)(Code)
Adds a PropertyChangeListener to the listener list for a specific property. The specified property may be user-defined.

Note that if this Model is inheriting a bound property, then no event will be fired in response to a change in the inherited property.

If listener is null, no exception is thrown and no action is performed.
Parameters:
  propertyName - one of the property names listed above
Parameters:
  listener - the PropertyChangeListener to be added
See Also:   DefaultUnitConverter.removePropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
See Also:   DefaultUnitConverter.addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)




getAverageCharacterWidthTestString
public String getAverageCharacterWidthTestString()(Code)
Returns the string used to compute the average character width. By default it is initialized to "X". the test string used to compute the average character width



getDefaultDialogFont
public Font getDefaultDialogFont()(Code)
Lazily creates and returns the dialog font used to compute the dialog base units. the font used to compute the dialog base units



getDialogBaseUnitsX
protected double getDialogBaseUnitsX(Component component)(Code)
Returns the cached or computed horizontal dialog base units.
Parameters:
  component - a Component that provides the font and graphics the horizontal dialog base units



getDialogBaseUnitsY
protected double getDialogBaseUnitsY(Component component)(Code)
Returns the cached or computed vertical dialog base units for the given component.
Parameters:
  component - a Component that provides the font and graphics the vertical dialog base units



getInstance
public static DefaultUnitConverter getInstance()(Code)
Lazily instantiates and returns the sole instance. the lazily instantiated sole instance



removePropertyChangeListener
final public synchronized void removePropertyChangeListener(PropertyChangeListener listener)(Code)
Removes a PropertyChangeListener from the listener list. This method should be used to remove PropertyChangeListeners that were registered for all bound properties of this class.

If listener is null, no exception is thrown and no action is performed.
Parameters:
  listener - the PropertyChangeListener to be removed
See Also:   DefaultUnitConverter.addPropertyChangeListener(PropertyChangeListener)
See Also:   DefaultUnitConverter.addPropertyChangeListener(String,PropertyChangeListener)
See Also:   DefaultUnitConverter.removePropertyChangeListener(String,PropertyChangeListener)




removePropertyChangeListener
final public synchronized void removePropertyChangeListener(String propertyName, PropertyChangeListener listener)(Code)
Removes a PropertyChangeListener from the listener list for a specific property. This method should be used to remove PropertyChangeListeners that were registered for a specific bound property.

If listener is null, no exception is thrown and no action is performed.
Parameters:
  propertyName - a valid property name
Parameters:
  listener - the PropertyChangeListener to be removed
See Also:   DefaultUnitConverter.addPropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
See Also:   DefaultUnitConverter.removePropertyChangeListener(java.beans.PropertyChangeListener)




setAverageCharacterWidthTestString
public void setAverageCharacterWidthTestString(String newTestString)(Code)
Sets a string that will be used to compute the average character width. By default it is initialized to "X". You can provide other test strings, for example:
  • "Xximeee"
  • "ABCEDEFHIJKLMNOPQRSTUVWXYZ"
  • "abcdefghijklmnopqrstuvwxyz"

Parameters:
  newTestString - the test string to be used
throws:
  IllegalArgumentException - if the test string is empty
throws:
  NullPointerException - if the test string is null



setDefaultDialogFont
public void setDefaultDialogFont(Font newFont)(Code)
Sets a dialog font that will be used to compute the dialog base units.
Parameters:
  newFont - the default dialog font to be set



Methods inherited from com.jgoodies.forms.util.AbstractUnitConverter
public int centimeterAsPixel(double cm, Component component)(Code)(Java Doc)
final protected int centimeterAsPixel(double cm, int dpi)(Code)(Java Doc)
protected double computeAverageCharWidth(FontMetrics metrics, String testString)(Code)(Java Doc)
public int dialogUnitXAsPixel(int dluX, Component c)(Code)(Java Doc)
protected int dialogUnitXAsPixel(int dluX, double dialogBaseUnitsX)(Code)(Java Doc)
public int dialogUnitYAsPixel(int dluY, Component c)(Code)(Java Doc)
protected int dialogUnitYAsPixel(int dluY, double dialogBaseUnitsY)(Code)(Java Doc)
protected int getDefaultScreenResolution()(Code)(Java Doc)
abstract protected double getDialogBaseUnitsX(Component component)(Code)(Java Doc)
abstract protected double getDialogBaseUnitsY(Component component)(Code)(Java Doc)
protected int getScreenResolution(Component c)(Code)(Java Doc)
public int inchAsPixel(double in, Component component)(Code)(Java Doc)
final protected int inchAsPixel(double in, int dpi)(Code)(Java Doc)
public int millimeterAsPixel(double mm, Component component)(Code)(Java Doc)
final protected int millimeterAsPixel(double mm, int dpi)(Code)(Java Doc)
public int pointAsPixel(int pt, Component component)(Code)(Java Doc)
final protected int pointAsPixel(int pt, int dpi)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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