Class TabRenderer

All Implemented Interfaces:
IPropertyContainer, IRenderer

public class TabRenderer extends AbstractRenderer
  • Constructor Details

    • TabRenderer

      public TabRenderer (Tab tab)
      Creates a TabRenderer from its corresponding layout object
      tab - the Tab which this object should manage
  • Method Details

    • layout

      public LayoutResult layout (LayoutContext layoutContext)
      Description copied from interface: IRenderer
      This method simulates positioning of the renderer, including all of its children, and returns the LayoutResult, representing the layout result, including occupied area, status, i.e. if there was enough place to fit the renderer subtree, etc. LayoutResult can be extended to return custom layout results for custom elements, e.g. TextRenderer uses TextLayoutResult as its result. This method can be called standalone to learn how much area the renderer subtree needs, or can be called before IRenderer.draw(DrawContext), to prepare the renderer to be flushed to the output stream.
      layoutContext - the description of layout area and any other additional information
      result of the layout process
    • draw

      public void draw (DrawContext drawContext)
      Description copied from class: AbstractRenderer
      Flushes the renderer subtree contents, i.e. draws itself on canvas, adds necessary objects to the PdfDocument etc.
      Specified by:
      draw in interface IRenderer
      draw in class AbstractRenderer
      drawContext - contains the PdfDocument to which the renderer subtree if flushed, the PdfCanvas on which the renderer subtree is drawn and other additional parameters needed to perform drawing
    • getNextRenderer

      public IRenderer getNextRenderer()
      Gets a new instance of this class to be used as a next renderer, after this renderer is used, if layout(LayoutContext) is called more than once.

      If a renderer overflows to the next area, iText uses this method to create a renderer for the overflow part. So if one wants to extend TabRenderer, one should override this method: otherwise the default method will be used and thus the default rather than the custom renderer will be created.

      new renderer instance