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Class tropo.awt.TRDelegatedCanvas 

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Canvas
                   |
                   +----tropo.awt.TRBufferedCanvas
                           |
                           +----tropo.awt.TRDelegatedCanvas
public final class TRDelegatedCanvas
extends TRBufferedCanvas
A delegated canvas is one in which another class takes care of sizing and drawing issues. You do not subclass this - rather you pass in a listener or painter which take takes care of the real work.

If you know your size when you new this guy then you pass in a painter and the size, else you only have to pass in a listener.

In typical usage all you use is the ctr here.

See Also:
TRCanvasListener, TRCanvasPainter, TRBufferedCanvas

Constructor Index

o TRDelegatedCanvas(TRCanvasListener)
Create a delegated canvas when you don't initially know the size.
o TRDelegatedCanvas(TRCanvasPainter, int, int)
Create a delegated canvas when you know the size.

Method Index

o draw(Graphics)
o mouseDown(Event, int, int)
o mouseDrag(Event, int, int)
o mouseEnter(Event, int, int)
o mouseExit(Event, int, int)
o mouseMove(Event, int, int)
o mouseUp(Event, int, int)
o setMouser(TRMouseListener)

Constructors

o TRDelegatedCanvas 
 public TRDelegatedCanvas(TRCanvasListener listener)
Create a delegated canvas when you don't initially know the size.

Parameters:
listener - the guy who knows how to size and paint us
o TRDelegatedCanvas 
 public TRDelegatedCanvas(TRCanvasPainter painter,
                          int w,
                          int h)
Create a delegated canvas when you know the size.

Parameters:
painter - the guy who knows how to paint the canvas
w - the width
h - the height

Methods

o setMouser 
 public void setMouser(TRMouseListener m)
o draw 
 public final void draw(Graphics g)
Overrides:
draw in class TRBufferedCanvas
o mouseDrag 
 public boolean mouseDrag(Event e,
                          int x,
                          int y)
Overrides:
mouseDrag in class Component
o mouseDown 
 public boolean mouseDown(Event e,
                          int x,
                          int y)
Overrides:
mouseDown in class Component
o mouseUp 
 public boolean mouseUp(Event e,
                        int x,
                        int y)
Overrides:
mouseUp in class Component
o mouseEnter 
 public boolean mouseEnter(Event e,
                           int x,
                           int y)
Overrides:
mouseEnter in class Component
o mouseExit 
 public boolean mouseExit(Event e,
                          int x,
                          int y)
Overrides:
mouseExit in class Component
o mouseMove 
 public boolean mouseMove(Event e,
                          int x,
                          int y)
Overrides:
mouseMove in class Component 
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