Examples of org.jfree.layouting.renderer.model.BlockRenderBox

Package org.jfree.layouting.renderer.model

Examples of org.jfree.layouting.renderer.model.BlockRenderBox

org.jfree.layouting.renderer.model.BlockRenderBox
A block box behaves according to the 'display:block' layouting rules. In the simplest case, all childs will consume the complete width and get stacked below each other.
Live would be boring if everything was simple: Floats and absolutly positioned elements enrich and complicate the layout schema. Absolute elements do not affect the normal flow, but inject an invisible placeholder to keep track of their assumed normal-flow position.
(Using Mozilla's behaviour as reference, I assume that absolutly positioned elements are controled from outside the normal-flow (ie. parallel to the normal flow, but positioned relative to their computed placeholder position inside the normal flow. Weird? yes!)
Float-elements are positioned inside the block context and reduce the size of the linebox. Float-elements are positioned once when they are defined and will not alter any previously defined content.
As floats from previous boxes may overlap with later boxes, all floats must be placed on a global storage. The only difference between absolutely positioned and floating elements is *where* they can be placed, and whether they influence the content under them. (Floats do, abs-pos dont). @author Thomas Morgner

    // them to look good.


    // As the real context (from the break-State) is currently being built,
    // we have to use the original pool to query the 'is-end-of-line' flag.
    RenderBox context = breakState.getInsertationPoint();
    final BlockRenderBox lines = breakState.getLines();
    while (context != lines)
    {
      // save the context ..
      if (context instanceof InlineRenderBox == false)
      {

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        final ParagraphRenderBox paragraphBox = (ParagraphRenderBox) box;


        if (continuedElement == null)
        {
          final BlockRenderBox lineboxContainer = paragraphBox.getLineboxContainer();
          final boolean unchanged =
              lineboxContainer.getChangeTracker() == paragraphBox.getMinorLayoutAge();
          if (unchanged)
          {
            return false;
          }
        }

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      {
        long rightPadding = blp.getMarginRight();
        rightPadding += blp.getBorderRight();
        rightPadding += blp.getPaddingRight();


        final BlockRenderBox blockParent = (BlockRenderBox) parent;
        box.setContentAreaX2(blockParent.getContentAreaX2() - rightPadding);
      }
      else
      {
        // A block level element that sits inside an inline element
        box.setContentAreaX2(x + leftPadding + box.getMinimumChunkWidth());

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    }
  }


  protected void processParagraphChilds(final ParagraphRenderBox box)
  {
    final BlockRenderBox lineboxContainer = box.getLineboxContainer();
    RenderNode node = lineboxContainer.getVisibleFirst();
    while (node != null)
    {
      // all childs of the linebox container must be inline boxes. They
      // represent the lines in the paragraph. Any other element here is
      // a error that must be reported

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        ParagraphRenderBox paragraphBox = (ParagraphRenderBox) box;


        if (continuedElement == null)
        {
          final BlockRenderBox lineboxContainer = paragraphBox.getLineboxContainer();
          final boolean unchanged =
              lineboxContainer.getChangeTracker() == paragraphBox.getMinorLayoutAge();
          if (unchanged)
          {
            return false;
          }
        }

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      {
        long rightPadding = blp.getMarginRight();
        rightPadding += blp.getBorderRight();
        rightPadding += blp.getPaddingRight();


        BlockRenderBox blockParent = (BlockRenderBox) parent;
        box.setContentAreaX2(blockParent.getContentAreaX2() - rightPadding);
      }
      else
      {
        // A block level element that sits inside an inline element
        box.setContentAreaX2(x + leftPadding + box.getMinimumChunkWidth());

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    }
  }


  protected void processParagraphChilds(final ParagraphRenderBox box)
  {
    final BlockRenderBox lineboxContainer = box.getLineboxContainer();
    RenderNode node = lineboxContainer.getVisibleFirst();
    while (node != null)
    {
      // all childs of the linebox container must be inline boxes. They
      // represent the lines in the paragraph. Any other element here is
      // a error that must be reported

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      }
      finishBlockBox(box);
    }
    else if (node instanceof BlockRenderBox)
    {
      final BlockRenderBox box = (BlockRenderBox) node;
      if (startBlockBox(box))
      {
        processBoxChilds(box);
      }
      finishBlockBox(box);

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Related Classes of org.jfree.layouting.renderer.model.BlockRenderBox

org.jfree.layouting.renderer.AbstractRenderer

org.jfree.layouting.renderer.process.InfiniteMinorAxisLayoutStep

org.jfree.layouting.renderer.process.IterateStructuralProcessStep

org.jfree.layouting.renderer.process.ParagraphLineBreakStep

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