Java Doc for ItemRenderer.java in  » Web-Framework » wingS » com » javujavu » javux » wings » item » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Framework » wingS » com.javujavu.javux.wings.item 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


com.javujavu.javux.wings.item.ItemRenderer

All known Subclasses:   com.javujavu.javux.wings.item.DefaultItemRenderer,  com.javujavu.javux.wings.extra.ColorItem,  com.javujavu.javux.wings.item.LabelItem,  com.javujavu.javux.wings.extra.FontItem,  com.javujavu.javux.wings.extra.ColorItemBox,
ItemRenderer
public interface ItemRenderer (Code)
This interface defines methods of item renderer. Item renderer is used by all WingS components to render items background with WingComponent.paintBackground(Graphics)
This is one of the core WingS interfaces required by all the components
See Also:   DefaultItemRenderer




Method Summary
 voiddrawItem(Graphics g, int x, int y, int width, int height, Object item, WingComponent owner, Style style, Insets margin, int alignment, int textPosition, Object context)
    
 DimensiongetItemSize(Object item, WingComponent owner, Style style, Object context)
    
public  booleanimageUpdate(Image img, int infoflags, int x, int y, int width, int height, Object item, WingComponent owner, Style style, Rectangle itemBounds)
    



Method Detail
drawItem
void drawItem(Graphics g, int x, int y, int width, int height, Object item, WingComponent owner, Style style, Insets margin, int alignment, int textPosition, Object context)(Code)
Draw the item
Parameters:
  g - graphics
Parameters:
  x - the x coordinate of the item to be drawn.
Parameters:
  y - the y coordinate of the item to be drawn.
Parameters:
  width - the width of the item to be drawn.
Parameters:
  height - the height of the item to be drawn.
Parameters:
  item - item to be drawn
Parameters:
  owner - component containing the item
Parameters:
  style - style
Parameters:
  margin - margin
Parameters:
  alignment - alignment
Parameters:
  textPosition - text position LEFT, RIGHT or CENTER
Parameters:
  context - component specific context



getItemSize
Dimension getItemSize(Object item, WingComponent owner, Style style, Object context)(Code)
Returns item size for the specified style
Parameters:
  item - item
Parameters:
  owner - component containing the item
Parameters:
  style - style
Parameters:
  context - component specific context items size



imageUpdate
public boolean imageUpdate(Image img, int infoflags, int x, int y, int width, int height, Object item, WingComponent owner, Style style, Rectangle itemBounds)(Code)
Implementation should update owner component if the item contains updated image
See ImageObserver.imageUpdate for more information
Parameters:
  img - the image being observed.
Parameters:
  infoflags -
Parameters:
  x - the x coordinate
Parameters:
  y - the y coordinate
Parameters:
  width - the width
Parameters:
  height - the height
Parameters:
  item - item
Parameters:
  owner - component containing the item
Parameters:
  style - style
Parameters:
  itemBounds - bounds of the item false if the infoflags indicate that theimage is completely loadedor item does not display the specified image; true otherwise.



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