Ejemplo n.º 1
0
        public virtual void OrphansWidowsAwareAndDirectLayoutProduceSameResult()
        {
            PdfDocument pdfDocument                  = new PdfDocument(new PdfWriter(new MemoryStream()));
            Document    document                     = new Document(pdfDocument);
            int         minAllowedWidows             = 3;
            int         overflowedToNextPageLinesNum = 5;
            Paragraph   widowsParagraph              = new Paragraph(OrphansWidowsTestUtil.PARA_TEXT);
            IRenderer   paragraphRenderer            = widowsParagraph.CreateRendererSubTree().SetParent(document.GetRenderer());
            Rectangle   effectiveArea                = document.GetPageEffectiveArea(pdfDocument.GetDefaultPageSize());
            float       linesHeight                  = OrphansWidowsTestUtil.CalculateHeightForLinesNum(document, widowsParagraph, effectiveArea
                                                                                                        .GetWidth(), overflowedToNextPageLinesNum, false);
            Rectangle layoutAreaRect = new Rectangle(effectiveArea).SetHeight(linesHeight + OrphansWidowsTestUtil.LINES_SPACE_EPS
                                                                              );
            LayoutContext          layoutContext = new LayoutContext(new LayoutArea(1, layoutAreaRect));
            LayoutResult           noWidowsControlLayoutResult = paragraphRenderer.Layout(layoutContext);
            ParagraphWidowsControl widowsControl = new ParagraphWidowsControl(minAllowedWidows, 1, false);

            widowsParagraph.SetWidowsControl(widowsControl);
            LayoutResult widowsControlLayoutResult = paragraphRenderer.Layout(layoutContext);

            // toString() comparison is used since it contains report on status, areaBreak and occupiedArea
            NUnit.Framework.Assert.AreEqual(noWidowsControlLayoutResult.ToString(), widowsControlLayoutResult.ToString
                                                ());
            ParagraphRenderer firstSplitRenderer  = (ParagraphRenderer)noWidowsControlLayoutResult.GetSplitRenderer();
            ParagraphRenderer secondSplitRenderer = (ParagraphRenderer)widowsControlLayoutResult.GetSplitRenderer();

            NUnit.Framework.Assert.IsNotNull(firstSplitRenderer);
            NUnit.Framework.Assert.IsNotNull(secondSplitRenderer);
            NUnit.Framework.Assert.AreEqual(firstSplitRenderer.ToString(), secondSplitRenderer.ToString());
            NUnit.Framework.Assert.IsNotNull(noWidowsControlLayoutResult.GetOverflowRenderer());
            NUnit.Framework.Assert.IsNotNull(widowsControlLayoutResult.GetOverflowRenderer());
        }