net.refractions.udig.project.ui.render.glass
Class GlassPane

java.lang.Object
  net.refractions.udig.project.ui.render.glass.GlassPane

public abstract class GlassPane
extends java.lang.Object

A glass pane that draws onto the image drawn on the screen.

The draw command is drawn after the background image has been drawn and before the draw commands are executed:

• Draw Commands
• Glass Pane
• Background Image (map layers; this image comes from the render manager)

Since:

1.1.0

Author:

Emily Gouge (Refractions Research, Inc)

Field Summary

protected ViewportPane

parent The viewport pane that does the drawing on the screen.

Constructor Summary

GlassPane(ViewportPane parent)
Creates a new glass pane with a given parent viewport.

Method Summary

abstract void	draw(GC graphics) This function does the drawing.
GlassPaneSite	getSite() Gets the site associated with the glasspane.

Methods inherited from class java.lang.Object

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

Field Detail

parent

protected ViewportPane parent

The viewport pane that does the drawing on the screen.

Constructor Detail

GlassPane

public GlassPane(ViewportPane parent)

Creates a new glass pane with a given parent viewport.

A new glasspane site is created using the map and render manager associated with the viewportpane

Parameters:

parent -

Method Detail

getSite

public GlassPaneSite getSite()

Gets the site associated with the glasspane.

Returns:

draw

public abstract void draw(GC graphics)

This function does the drawing. This is called whenever the viewport is redrawn.

This should contain the draw commands of the items you want drawn on the glass pane. All draw commands are pixel draw commands therefore any location information needs to be converted to screen coordinates. This can be done using the GlassPaneSite information

Parameters:

graphics -