Class PainterChain

java.lang.Object
com.codename1.ui.painter.PainterChain
All Implemented Interfaces:
Painter
public class PainterChain extends java.lang.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 Summary

    Constructors
    Constructor
    Description
    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
    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

  • Method Summary

    Modifier and Type
    Method
    Description
    PainterChain
    addPainter(Painter p)
    Creates a new chain based on the existing chain with the new element added at the end
    Painter[]
    getChain()
    Allows us to traverse the painter chain
    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
    void
    paint(Graphics g, Rectangle rect)
    Draws inside the given rectangle clipping area.
    PainterChain
    prependPainter(Painter p)
    Creates a new chain based on the existing chain with the new element added at the beginning
    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

    Methods inherited from class java.lang.Object

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

  • 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