Package swingtree

Class RenderAs<C extends JComponent,E,T extends E>

java.lang.Object
swingtree.RenderAs<C,E,T>
Type Parameters:
C - The type of the component which is used to render the cell.
E - The type of the value of the cell.
T - The type of the value of the cell.
public final class RenderAs<C extends JComponent,E,T extends E> extends Object
This class models the API of the CellBuilder which allows you to specify how a cell should be rendered. Most likely you will want to call asText(Function) on this as most cells are rendered as simple texts. An example would be a combo box containing enum values, which you don't want to render as the enum name (all capital letters), but rather as a more human-readable string.

  • Method Details

    • as

      public CellBuilder<C,E> as(Configurator<CellConf<C,T>> valueInterpreter)
      Specify a lambda which receives a CellConf instance for you to customize its renderer. This is the most generic way to customize the rendering of a cell, as you can choose between vastly different ways of rendering: 
      
 		.when( MyEnum.class )
 		.as( cell -> {
 			// do component based rendering:
 			cell.setRenderer( new JLabel( "Hello World" ) );
 			// or do graphics rendering directly:
 			cell.setRenderer( g -> {
 				// draw something
 				g.drawString( "Hello World", 0, 0 );
 			});
 		})
      Parameters:
      valueInterpreter - A lambda which customizes the provided cell.
      Returns:
      The builder API allowing method chaining.

    • asComponent

      public CellBuilder<C,E> asComponent(Function<CellConf<C,T>,Component> renderer)
      Specify a lambda which receives a CellConf instance and return a Component which is then used to render the cell. 
      
 		.when( MyEnum.class )
 		.asComponent( cell -> new JLabel( "Hello World" ) )
      Parameters:
      renderer - A function which returns a Component which is then used to render the cell.
      Returns:
      The builder API allowing method chaining.

    • asText

      public CellBuilder<C,E> asText(Function<CellConf<C,T>,String> renderer)
      Specify a lambda which receives a CellConf instance and return a String which is then used to render the cell. 
      
 		.when( MyEnum.class )
 		.asText( cell -> "Hello World" )
      Parameters:
      renderer - A function which returns a String which is then used to render the cell.
      Returns:
      The builder API allowing method chaining.

    • render

      public CellBuilder<C,E> render(BiConsumer<CellConf<C,T>,Graphics2D> renderer)
      Specify a lambda which receives a CellConf instance as well as a Graphics instance and then renders the cell. 
      
  	.when( MyEnum.class )
  	.render( (cell, g) -> {
  		// draw something
  		g.drawString( "Hello World", 0, 0 );
    })
      Parameters:
      renderer - A function which receives a CellConf instance as well as a Graphics instance and then renders the cell.
      Returns:
      The builder API allowing method chaining.