Class PainterChain

java.lang.Object
com.codename1.ui.painter.PainterChain
All Implemented Interfaces:
Painter
public class PainterChain extends Object implements Painter
A painter chain allows us to chain together several painters to provide a "layer" effect where each painter only draws one element.

  • Constructor Details

    • PainterChain

      public PainterChain(Painter[] chain)

      Create a new painter chain which will paint all of the elements in the chain in sequence from 0 to the last element

      Parameters
      • chain: the chain of components in the painter

    • PainterChain

      public PainterChain(Painter painter)

      Create a new painter chain which will paint all of the elements in the chain in sequence from 0 to the last element

      Parameters
      • painter: the chain first Painter

  • Method Details

    • installGlassPane

      public static void installGlassPane(Form f, Painter p)

      Installs a glass pane on the given form making sure to make it a painter chain only if required by existing painter

      Parameters

      • f: form on which to install the chain

      • p: painter to install

    • removeGlassPane

      public static void removeGlassPane(Form f, Painter p)

      Removes a glass pane from the given form, this is the opposite operation for the install glass pane

      Parameters

      • f: form from which to remove the chain

      • p: painter to remove

    • addPainter

      public PainterChain addPainter(Painter p)

      Creates a new chain based on the existing chain with the new element added at the end

      Parameters
      • p: new painter
      Returns

      new chain element

    • prependPainter

      public PainterChain prependPainter(Painter p)

      Creates a new chain based on the existing chain with the new element added at the beginning

      Parameters
      • p: new painter
      Returns

      new chain element

    • paint

      public void paint(Graphics g, Rectangle rect)

      Draws inside the given rectangle clipping area.

      Parameters

      • g: the Graphics object

      • rect: the given rectangle cliping area

      Specified by:
      paint in interface Painter

    • getChain

      public Painter[] getChain()

      Allows us to traverse the painter chain

      Returns

      the internal painter chain