public override void Draw(DrawContext drawContext)
{
// Fictitiously layout the renderer and find out, how much space does it require
IRenderer pr = content.CreateRendererSubTree().SetParent(this);
LayoutResult textArea = pr.Layout(new LayoutContext(
new LayoutArea(0, new Rectangle(GetOccupiedAreaBBox().GetWidth(), 1000))));
float spaceNeeded = textArea.GetOccupiedArea().GetBBox().GetHeight();
Console.WriteLine("The content requires {0} pt whereas the height is {1} pt.",
spaceNeeded, GetOccupiedAreaBBox().GetHeight());
float offset = (GetOccupiedAreaBBox().GetHeight() - textArea.GetOccupiedArea()
.GetBBox().GetHeight()) / 2;
Console.WriteLine("The difference is {0} pt; we'll need an offset of {1} pt.",
-2f * offset, offset);
PdfFormXObject xObject = new PdfFormXObject(new Rectangle(GetOccupiedAreaBBox().GetWidth(),
GetOccupiedAreaBBox().GetHeight()));
Canvas layoutCanvas = new Canvas(new PdfCanvas(xObject, drawContext.GetDocument()),
new Rectangle(0, offset, GetOccupiedAreaBBox().GetWidth(), spaceNeeded));
layoutCanvas.Add(content);
drawContext.GetCanvas().AddXObjectAt(xObject, occupiedArea.GetBBox().GetLeft(),
occupiedArea.GetBBox().GetBottom());
}
/// <summary>
/// This method tries to calculate min-max-width of rotated element using heuristics
/// of
/// <see cref="iText.Layout.Minmaxwidth.RotationMinMaxWidth.Calculate(double, double, iText.Layout.Minmaxwidth.MinMaxWidth)
/// "/>.
/// </summary>
/// <remarks>
/// This method tries to calculate min-max-width of rotated element using heuristics
/// of
/// <see cref="iText.Layout.Minmaxwidth.RotationMinMaxWidth.Calculate(double, double, iText.Layout.Minmaxwidth.MinMaxWidth)
/// "/>.
/// This method may call
/// <see cref="IRenderer.Layout(iText.Layout.Layout.LayoutContext)"/>
/// once in best case
/// (if the width is set on element, or if we are really lucky) and three times in worst case.
/// </remarks>
/// <param name="minMaxWidth">the minMaxWidth of NOT rotated renderer</param>
/// <param name="renderer">the actual renderer</param>
/// <returns>minMaxWidth of rotated renderer or original value in case rotated value can not be calculated, or renderer isn't rotated.
/// </returns>
public static MinMaxWidth CountRotationMinMaxWidth(MinMaxWidth minMaxWidth, AbstractRenderer renderer)
{
RotationUtils.PropertiesBackup backup = new RotationUtils.PropertiesBackup(renderer);
float?rotation = backup.StoreFloatProperty(Property.ROTATION_ANGLE);
if (rotation != null)
{
float angle = (float)rotation;
//This width results in more accurate values for min-width calculations.
float layoutWidth = minMaxWidth.GetMaxWidth() + MinMaxWidthUtils.GetEps();
LayoutResult layoutResult = renderer.Layout(new LayoutContext(new LayoutArea(1, new Rectangle(layoutWidth,
AbstractRenderer.INF))));
if (layoutResult.GetOccupiedArea() != null)
{
Rectangle layoutBBox = layoutResult.GetOccupiedArea().GetBBox();
if (MinMaxWidthUtils.IsEqual(minMaxWidth.GetMinWidth(), minMaxWidth.GetMaxWidth()))
{
backup.RestoreProperty(Property.ROTATION_ANGLE);
float rotatedWidth = (float)RotationMinMaxWidth.CalculateRotatedWidth(layoutBBox, angle);
return(new MinMaxWidth(rotatedWidth, rotatedWidth, 0));
}
double area = layoutResult.GetOccupiedArea().GetBBox().GetWidth() * layoutResult.GetOccupiedArea().GetBBox
().GetHeight();
RotationMinMaxWidth rotationMinMaxWidth = RotationMinMaxWidth.Calculate(angle, area, minMaxWidth);
float?rotatedMinWidth = GetLayoutRotatedWidth(renderer, (float)rotationMinMaxWidth.GetMinWidthOrigin(), layoutBBox
, angle);
if (rotatedMinWidth != null)
{
if (rotatedMinWidth > rotationMinMaxWidth.GetMaxWidth())
{
rotationMinMaxWidth.SetChildrenMinWidth((float)rotatedMinWidth);
float?rotatedMaxWidth = GetLayoutRotatedWidth(renderer, (float)rotationMinMaxWidth.GetMaxWidthOrigin(), layoutBBox
, angle);
if (rotatedMaxWidth != null && rotatedMaxWidth > rotatedMinWidth)
{
rotationMinMaxWidth.SetChildrenMaxWidth((float)rotatedMaxWidth);
}
else
{
rotationMinMaxWidth.SetChildrenMaxWidth((float)rotatedMinWidth);
}
}
else
{
rotationMinMaxWidth.SetChildrenMinWidth((float)rotatedMinWidth);
}
backup.RestoreProperty(Property.ROTATION_ANGLE);
return(rotationMinMaxWidth);
}
}
}
backup.RestoreProperty(Property.ROTATION_ANGLE);
return(minMaxWidth);
}
private static Image GetWatermarkedImage(PdfDocument pdfDocument, Image img)
{
float width = img.GetImageScaledWidth();
float height = img.GetImageScaledHeight();
Table table = InitTable(width);
TableRenderer renderer = (TableRenderer)table.CreateRendererSubTree();
renderer.SetParent(new DocumentRenderer(new Document(pdfDocument)));
// Simulate the positioning of the renderer to find out how much space the table will occupy.
LayoutResult result = renderer.Layout(new LayoutContext(new LayoutArea(
1, new Rectangle(10000, 10000))));
PdfFormXObject template = new PdfFormXObject(new Rectangle(width, height));
new Canvas(template, pdfDocument)
.Add(img)
.Close();
float left = 0;
float bottom = height - result.GetOccupiedArea().GetBBox().GetHeight();
new Canvas(template, pdfDocument)
.Add(table.SetFixedPosition(left, bottom, width))
.Close();
return(new Image(template));
}
//Get actual width of element based on it's layout. May use occupied are of layout result of initial layout for time saving.
private static float?GetLayoutRotatedWidth(AbstractRenderer renderer, float availableWidth, Rectangle previousBBox
, double angle)
{
if (MinMaxWidthUtils.IsEqual(availableWidth, previousBBox.GetWidth()))
{
return((float)RotationMinMaxWidth.CalculateRotatedWidth(previousBBox, angle));
}
LayoutResult result = renderer.Layout(new LayoutContext(new LayoutArea(1, new Rectangle(availableWidth + MinMaxWidthUtils
.GetEps(), AbstractRenderer.INF))));
if (result.GetOccupiedArea() != null)
{
return((float)RotationMinMaxWidth.CalculateRotatedWidth(result.GetOccupiedArea().GetBBox(), angle));
}
return(null);
}
private void ManipulatePdf(string dest)
{
Table table = new Table(UnitValue.CreatePercentArray(1)).UseAllAvailableWidth();
for (int i = 0; i < 10; i++)
{
Cell cell;
if (i == 9)
{
cell = new Cell().Add(new Paragraph("Two\nLines"));
}
else
{
cell = new Cell().Add(new Paragraph(i.ToString()));
}
table.AddCell(cell);
}
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
Document doc = new Document(pdfDoc);
// Fictitiously layout the element to find out, how much space it takes
IRenderer tableRenderer = table.CreateRendererSubTree().SetParent(doc.GetRenderer());
LayoutResult tableLayoutResult = tableRenderer.Layout(new LayoutContext(
new LayoutArea(0, new Rectangle(550 + 72, 1000))));
pdfDoc.SetDefaultPageSize(new PageSize(550 + 72,
tableLayoutResult.GetOccupiedArea().GetBBox().GetHeight() + 72));
doc.Add(table);
doc.Close();
}
public override LayoutResult Layout(LayoutContext layoutContext)
{
LayoutResult errorResult = InitializeListSymbols(layoutContext);
if (errorResult != null)
{
return(errorResult);
}
LayoutResult result = base.Layout(layoutContext);
// cannot place even the first ListItemRenderer
if (true.Equals(GetPropertyAsBoolean(Property.FORCED_PLACEMENT)) && null != result.GetCauseOfNothing())
{
if (LayoutResult.FULL == result.GetStatus())
{
result = CorrectListSplitting(this, null, result.GetCauseOfNothing(), result.GetOccupiedArea());
}
else
{
if (LayoutResult.PARTIAL == result.GetStatus())
{
result = CorrectListSplitting(result.GetSplitRenderer(), result.GetOverflowRenderer(), result.GetCauseOfNothing
(), result.GetOccupiedArea());
}
}
}
return(result);
}
internal HeightDimensionContainer(CssContextNode pmbcNode, float width, float maxHeight, IRenderer renderer
, float additionalWidthFix)
{
String height = pmbcNode.GetStyles().Get(CssConstants.HEIGHT);
if (height != null && !CssConstants.AUTO.Equals(height))
{
dimension = ParseDimension(pmbcNode, height, maxHeight, additionalWidthFix);
}
minDimension = GetMinHeight(pmbcNode, maxHeight, additionalWidthFix);
maxDimension = GetMaxHeight(pmbcNode, maxHeight, additionalWidthFix);
if (!IsAutoDimension())
{
maxContentDimension = dimension;
maxContentDimension = dimension;
}
else
{
LayoutArea layoutArea = new LayoutArea(1, new Rectangle(0, 0, width, infHeight));
LayoutContext minimalContext = new LayoutContext(layoutArea);
LayoutResult quickLayout = renderer.Layout(minimalContext);
if (quickLayout.GetStatus() != LayoutResult.NOTHING)
{
maxContentDimension = quickLayout.GetOccupiedArea().GetBBox().GetHeight();
minContentDimension = maxContentDimension;
}
}
}
public virtual void MinMaxWidthEqualsActualMarginsBordersPaddings()
{
PdfDocument pdfDocument = new PdfDocument(new PdfWriter(new MemoryStream()));
Document document = new Document(pdfDocument);
Text ranText = new Text("ran");
ranText.SetProperty(Property.MARGIN_LEFT, new UnitValue(UnitValue.POINT, 8f));
ranText.SetProperty(Property.MARGIN_RIGHT, new UnitValue(UnitValue.POINT, 10f));
ranText.SetProperty(Property.BORDER_RIGHT, new SolidBorder(3));
ranText.SetProperty(Property.PADDING_RIGHT, new UnitValue(UnitValue.POINT, 13f));
TextRenderer ran = new TextRenderer(ranText);
Text domText = new Text("dom");
domText.SetProperty(Property.MARGIN_LEFT, new UnitValue(UnitValue.POINT, 17f));
domText.SetProperty(Property.BORDER_LEFT, new SolidBorder(4));
domText.SetProperty(Property.PADDING_LEFT, new UnitValue(UnitValue.POINT, 12f));
domText.SetProperty(Property.MARGIN_RIGHT, new UnitValue(UnitValue.POINT, 2f));
TextRenderer dom = new TextRenderer(domText);
LayoutArea layoutArea = new LayoutArea(1, new Rectangle(AbstractRenderer.INF, AbstractRenderer.INF));
LineRenderer lineRenderer = new LineRenderer();
lineRenderer.SetParent(document.GetRenderer());
lineRenderer.AddChild(ran);
lineRenderer.AddChild(dom);
float countedMinWidth = lineRenderer.GetMinMaxWidth().GetMinWidth();
LayoutResult result = lineRenderer.Layout(new LayoutContext(layoutArea));
NUnit.Framework.Assert.AreEqual(result.GetOccupiedArea().GetBBox().GetWidth(), countedMinWidth, 0.0001);
}
protected LayoutArea GetParagraphArea(Paragraph p, int pageIndex)
{
IRenderer paragraphRenderer = p.CreateRendererSubTree();
LayoutResult result = paragraphRenderer.SetParent(document.GetRenderer()).
Layout(new LayoutContext(new LayoutArea(pageIndex, new Rectangle(100, 1000))));
return(result.GetOccupiedArea());
}
/// <summary>This method tries to calculate width of not rotated renderer, so after rotation it fits availableWidth.
/// </summary>
/// <remarks>
/// This method tries to calculate width of not rotated renderer, so after rotation it fits availableWidth.
/// This method uses heuristics of
/// <see cref="iText.Layout.Minmaxwidth.RotationMinMaxWidth.Calculate(double, double, iText.Layout.Minmaxwidth.MinMaxWidth, double)
/// "/>.
/// It doesn't take into account any of height properties of renderer or height of layoutArea.
/// The minMaxWidth calculations and initial layout may take long time, but they won't be called if the renderer have width property.
/// </remarks>
/// <param name="availableWidth">the width of layoutArea</param>
/// <param name="renderer">the actual renderer</param>
/// <returns>
/// the width that should be set as width of layout area to properly layout element, or fallback to
/// <see cref="AbstractRenderer.RetrieveWidth(float)"/>
/// in case it can not be calculated, or renderer isn't rotated.
/// </returns>
public static float?RetrieveRotatedLayoutWidth(float availableWidth, AbstractRenderer renderer)
{
RotationUtils.PropertiesBackup backup = new RotationUtils.PropertiesBackup(renderer);
float?rotation = backup.StoreFloatProperty(Property.ROTATION_ANGLE);
if (rotation != null && renderer.GetProperty <UnitValue>(Property.WIDTH) == null)
{
float angle = (float)rotation;
backup.StoreProperty <UnitValue>(Property.HEIGHT);
backup.StoreProperty <UnitValue>(Property.MIN_HEIGHT);
backup.StoreProperty <UnitValue>(Property.MAX_HEIGHT);
MinMaxWidth minMaxWidth = renderer.GetMinMaxWidth();
//Using this width for initial layout helps in case of small elements. They may have more free spaces but it's more likely they fit.
float length = (minMaxWidth.GetMaxWidth() + minMaxWidth.GetMinWidth()) / 2 + MinMaxWidthUtils.GetEps();
LayoutResult layoutResult = renderer.Layout(new LayoutContext(new LayoutArea(1, new Rectangle(length, AbstractRenderer
.INF))));
backup.RestoreProperty(Property.HEIGHT);
backup.RestoreProperty(Property.MIN_HEIGHT);
backup.RestoreProperty(Property.MAX_HEIGHT);
Rectangle additions = new Rectangle(0, 0);
renderer.ApplyPaddings(additions, true);
renderer.ApplyBorderBox(additions, true);
renderer.ApplyMargins(additions, true);
if (layoutResult.GetOccupiedArea() != null)
{
double area = layoutResult.GetOccupiedArea().GetBBox().GetWidth() * layoutResult.GetOccupiedArea().GetBBox
().GetHeight();
RotationMinMaxWidth result = RotationMinMaxWidth.Calculate(angle, area, minMaxWidth, availableWidth);
if (result != null)
{
backup.RestoreProperty(Property.ROTATION_ANGLE);
if (result.GetMaxWidthHeight() > result.GetMinWidthHeight())
{
return((float)(result.GetMinWidthOrigin() - additions.GetWidth() + MinMaxWidthUtils.GetEps()));
}
else
{
return((float)(result.GetMaxWidthOrigin() - additions.GetWidth() + MinMaxWidthUtils.GetEps()));
}
}
}
}
backup.RestoreProperty(Property.ROTATION_ANGLE);
return(renderer.RetrieveWidth(availableWidth));
}
public static float CalculateHeightForLinesNum(Document doc, Paragraph p, float width, float linesNum, bool
orphans)
{
ParagraphRenderer renderer = (ParagraphRenderer)p.CreateRendererSubTree().SetParent(doc.GetRenderer());
LayoutResult layoutRes = renderer.Layout(new LayoutContext(new LayoutArea(1, new Rectangle(width, 100000))
));
float lineHeight = layoutRes.GetOccupiedArea().GetBBox().GetHeight() / renderer.GetLines().Count;
float height = lineHeight * linesNum;
if (orphans)
{
return(height);
}
else
{
return(layoutRes.GetOccupiedArea().GetBBox().GetHeight() - height);
}
}
public virtual void LayoutTest()
{
AreaBreakRenderer areaBreakRenderer = new AreaBreakRenderer(new AreaBreak());
LayoutResult layoutResult = areaBreakRenderer.Layout(new LayoutContext(null));
NUnit.Framework.Assert.AreEqual(LayoutResult.NOTHING, layoutResult.GetStatus());
NUnit.Framework.Assert.IsNull(layoutResult.GetOccupiedArea());
NUnit.Framework.Assert.IsNull(layoutResult.GetSplitRenderer());
NUnit.Framework.Assert.IsNull(layoutResult.GetOverflowRenderer());
NUnit.Framework.Assert.AreEqual(areaBreakRenderer, layoutResult.GetCauseOfNothing());
NUnit.Framework.Assert.AreEqual(areaBreakRenderer.areaBreak, layoutResult.GetAreaBreak());
}
private float GetParagraafHeight(Paragraph paragraaf, Document doc, int width)
{
// Create renderer tree
IRenderer paragraphRenderer = paragraaf.CreateRendererSubTree();
// Do not forget setParent(). Set the dimensions of the viewport as needed
LayoutResult layoutResult = paragraphRenderer
.SetParent(doc.GetRenderer())
.Layout(new LayoutContext(new LayoutArea(1, new iText.Kernel.Geom.Rectangle(width, 1000))));
// LayoutResult#getOccupiedArea() contains the information you need
return(layoutResult.GetOccupiedArea().GetBBox().GetHeight());
}
public static float CalculateHeightForLinesNumKeepTogetherCaseSpecific(Document doc, Paragraph p, float width
, float height, float linesNum)
{
ParagraphRenderer renderer = (ParagraphRenderer)p.CreateRendererSubTree().SetParent(doc.GetRenderer());
LayoutResult layoutRes = renderer.Layout(new LayoutContext(new LayoutArea(1, new Rectangle(width, 10000)))
);
int allLinesCount = renderer.GetLines().Count;
float lineHeight = layoutRes.GetOccupiedArea().GetBBox().GetHeight() / allLinesCount;
renderer.Layout(new LayoutContext(new LayoutArea(1, new Rectangle(width, height))));
int linesWithinOnePageCount = renderer.GetLines().Count;
return((allLinesCount - linesWithinOnePageCount - linesNum) * lineHeight);
}
public TableHeaderEventHandler(Document doc)
{
this.doc = doc;
InitTable();
TableRenderer renderer = (TableRenderer)table.CreateRendererSubTree();
renderer.SetParent(new DocumentRenderer(doc));
// Simulate the positioning of the renderer to find out how much space the header table will occupy.
LayoutResult result = renderer.Layout(new LayoutContext(new LayoutArea(0, PageSize.A4)));
tableHeight = result.GetOccupiedArea().GetBBox().GetHeight();
}
public virtual void InlineBlockWithBigMinWidth01()
{
Document dummyDocument = CreateDocument();
LineRenderer lineRenderer = (LineRenderer) new LineRenderer().SetParent(dummyDocument.GetRenderer());
Div div = new Div().SetMinWidth(2000).SetHeight(100);
DivRenderer inlineBlockRenderer = (DivRenderer)div.CreateRendererSubTree();
lineRenderer.AddChild(inlineBlockRenderer);
LayoutResult result = lineRenderer.Layout(new LayoutContext(CreateLayoutArea(1000, 1000)));
// In case there is an inline block child with large min-width, the inline block child will be force placed (not layouted properly)
NUnit.Framework.Assert.AreEqual(LayoutResult.FULL, result.GetStatus());
NUnit.Framework.Assert.AreEqual(0, result.GetOccupiedArea().GetBBox().GetHeight(), EPS);
NUnit.Framework.Assert.AreEqual(true, inlineBlockRenderer.GetPropertyAsBoolean(Property.FORCED_PLACEMENT));
}
private void UpdateCurrentAreaAndProcessRenderer(IRenderer renderer, IList <IRenderer> resultRenderers, LayoutResult
result)
{
if (currentArea != null)
{
currentArea.GetBBox().SetHeight(currentArea.GetBBox().GetHeight() - result.GetOccupiedArea().GetBBox().GetHeight
());
currentArea.SetEmptyArea(false);
if (renderer != null)
{
ProcessRenderer(renderer, resultRenderers);
}
}
if (!immediateFlush)
{
childRenderers.AddAll(resultRenderers);
}
}
protected internal virtual void ShrinkCurrentAreaAndProcessRenderer(IRenderer renderer, IList <IRenderer> resultRenderers
, LayoutResult result)
{
if (currentArea != null)
{
float resultRendererHeight = result.GetOccupiedArea().GetBBox().GetHeight();
currentArea.GetBBox().SetHeight(currentArea.GetBBox().GetHeight() - resultRendererHeight);
if (currentArea.IsEmptyArea() && (resultRendererHeight > 0 || FloatingHelper.IsRendererFloating(renderer))
)
{
currentArea.SetEmptyArea(false);
}
ProcessRenderer(renderer, resultRenderers);
}
if (!immediateFlush)
{
childRenderers.AddAll(resultRenderers);
}
}
public override LayoutResult Layout(LayoutContext layoutContext)
{
Rectangle area = layoutContext.GetArea().GetBBox();
LayoutContext context = new LayoutContext(new LayoutArea(layoutContext.GetArea().GetPageNumber(),
new Rectangle(area.GetLeft(), area.GetTop() - (float)RetrieveHeight(), area.GetWidth(),
(float)RetrieveHeight())));
LayoutResult result = base.Layout(context);
// If content doesn't fit the size of a cell,
// iTest will still return layout result full as if everything is OK.
// As a result, the cell's content will be clipped.
if (LayoutResult.FULL != result.GetStatus())
{
return(new LayoutResult(LayoutResult.FULL, result.GetOccupiedArea(), null, null));
}
return(result);
}
public virtual void NextRendererTest()
{
PdfDocument pdfDoc = new PdfDocument(new PdfWriter(new MemoryStream()));
pdfDoc.AddNewPage();
Document doc = new Document(pdfDoc);
RootRenderer documentRenderer = doc.GetRenderer();
Text text = new Text("hello");
text.SetNextRenderer(new TextRenderer(text));
IRenderer textRenderer1 = text.GetRenderer().SetParent(documentRenderer);
IRenderer textRenderer2 = text.GetRenderer().SetParent(documentRenderer);
LayoutArea area = new LayoutArea(1, new Rectangle(100, 100, 100, 100));
LayoutContext layoutContext = new LayoutContext(area);
doc.Close();
LayoutResult result1 = textRenderer1.Layout(layoutContext);
LayoutResult result2 = textRenderer2.Layout(layoutContext);
NUnit.Framework.Assert.AreEqual(result1.GetOccupiedArea(), result2.GetOccupiedArea());
}
private static Rectangle ResolveTableRect(Document doc, Table table)
{
Rectangle pageDimension = new Rectangle(36, 36, 523, 770);
IRenderer tableRenderer = table.CreateRendererSubTree().SetParent(doc.GetRenderer());
LayoutResult tableLayoutResult = tableRenderer.Layout(new LayoutContext(new LayoutArea(0, pageDimension)));
Rectangle resultRect;
if (LayoutResult.PARTIAL == tableLayoutResult.GetStatus())
{
resultRect = pageDimension;
}
else
{
Rectangle tableBBox = tableLayoutResult.GetOccupiedArea().GetBBox();
resultRect = new Rectangle(pageDimension.GetX(), ((tableBBox.GetBottom() + pageDimension.GetX()) / 2),
pageDimension.GetWidth(), tableBBox.GetHeight());
}
return(resultRect);
}
public virtual void LineRendererLayoutInHtmlModeWithLineHeightPropertyNotSet()
{
LineRenderer lineRenderer = new LineRenderer();
lineRenderer.SetParent(CreateDocument().GetRenderer());
lineRenderer.SetProperty(Property.RENDERING_MODE, RenderingMode.HTML_MODE);
// Set fonts with different ascent/descent to line and text
lineRenderer.SetProperty(Property.FONT, PdfFontFactory.CreateFont(StandardFonts.HELVETICA));
TextRenderer textRenderer = new TextRenderer(new Text("text"));
textRenderer.SetProperty(Property.FONT, PdfFontFactory.CreateFont(StandardFonts.COURIER));
lineRenderer.AddChild(textRenderer);
LayoutResult layoutResLineHeightNotSet = lineRenderer.Layout(new LayoutContext(CreateLayoutArea(1000, 1000
)));
lineRenderer.SetProperty(Property.LINE_HEIGHT, LineHeight.CreateNormalValue());
LayoutResult layoutResLineHeightNormal = lineRenderer.Layout(new LayoutContext(CreateLayoutArea(1000, 1000
)));
Rectangle bboxLineHeightNotSet = layoutResLineHeightNotSet.GetOccupiedArea().GetBBox();
Rectangle bboxLineHeightNormal = layoutResLineHeightNormal.GetOccupiedArea().GetBBox();
NUnit.Framework.Assert.IsTrue(bboxLineHeightNotSet.EqualsWithEpsilon(bboxLineHeightNormal));
}
public override void AddChild(IRenderer renderer)
{
base.AddChild(renderer);
if (currentArea == null)
{
UpdateCurrentArea(null);
}
// Static layout
if (currentArea != null && !childRenderers.IsEmpty() && childRenderers[childRenderers.Count - 1] == renderer
)
{
childRenderers.JRemoveAt(childRenderers.Count - 1);
IList <IRenderer> resultRenderers = new List <IRenderer>();
LayoutResult result = null;
LayoutArea storedArea = null;
LayoutArea nextStoredArea = null;
while (currentArea != null && renderer != null && (result = renderer.SetParent(this).Layout(new LayoutContext
(currentArea.Clone()))).GetStatus() != LayoutResult.FULL)
{
if (result.GetStatus() == LayoutResult.PARTIAL)
{
if (result.GetOverflowRenderer() is ImageRenderer)
{
((ImageRenderer)result.GetOverflowRenderer()).AutoScale(currentArea);
}
else
{
ProcessRenderer(result.GetSplitRenderer(), resultRenderers);
if (nextStoredArea != null)
{
currentArea = nextStoredArea;
currentPageNumber = nextStoredArea.GetPageNumber();
nextStoredArea = null;
}
else
{
UpdateCurrentArea(result);
}
}
}
else
{
if (result.GetStatus() == LayoutResult.NOTHING)
{
if (result.GetOverflowRenderer() is ImageRenderer)
{
if (currentArea.GetBBox().GetHeight() < ((ImageRenderer)result.GetOverflowRenderer()).imageHeight && !currentArea
.IsEmptyArea())
{
UpdateCurrentArea(result);
}
((ImageRenderer)result.GetOverflowRenderer()).AutoScale(currentArea);
}
else
{
if (currentArea.IsEmptyArea() && !(renderer is AreaBreakRenderer))
{
if (true.Equals(result.GetOverflowRenderer().GetModelElement().GetProperty <bool?>(Property.KEEP_TOGETHER))
)
{
result.GetOverflowRenderer().GetModelElement().SetProperty(Property.KEEP_TOGETHER, false);
ILogger logger = LoggerFactory.GetLogger(typeof(RootRenderer));
logger.Warn(String.Format(LogMessageConstant.ELEMENT_DOES_NOT_FIT_AREA, "KeepTogether property will be ignored."
));
if (storedArea != null)
{
nextStoredArea = currentArea;
currentArea = storedArea;
currentPageNumber = storedArea.GetPageNumber();
}
storedArea = currentArea;
}
else
{
result.GetOverflowRenderer().SetProperty(Property.FORCED_PLACEMENT, true);
ILogger logger = LoggerFactory.GetLogger(typeof(RootRenderer));
logger.Warn(String.Format(LogMessageConstant.ELEMENT_DOES_NOT_FIT_AREA, ""));
}
renderer = result.GetOverflowRenderer();
continue;
}
storedArea = currentArea;
if (nextStoredArea != null)
{
currentArea = nextStoredArea;
currentPageNumber = nextStoredArea.GetPageNumber();
nextStoredArea = null;
}
else
{
UpdateCurrentArea(result);
}
}
}
}
renderer = result.GetOverflowRenderer();
}
if (currentArea != null)
{
System.Diagnostics.Debug.Assert(result != null && result.GetOccupiedArea() != null);
currentArea.GetBBox().SetHeight(currentArea.GetBBox().GetHeight() - result.GetOccupiedArea().GetBBox().GetHeight
());
currentArea.SetEmptyArea(false);
if (renderer != null)
{
ProcessRenderer(renderer, resultRenderers);
}
}
if (!immediateFlush)
{
childRenderers.AddAll(resultRenderers);
}
}
else
{
if (positionedRenderers.Count > 0 && positionedRenderers[positionedRenderers.Count - 1] == renderer)
{
int?positionedPageNumber = renderer.GetProperty <int?>(Property.PAGE_NUMBER);
if (positionedPageNumber == null)
{
positionedPageNumber = currentPageNumber;
}
renderer.SetParent(this).Layout(new LayoutContext(new LayoutArea((int)positionedPageNumber, currentArea.GetBBox
().Clone())));
if (immediateFlush)
{
FlushSingleRenderer(renderer);
positionedRenderers.JRemoveAt(positionedRenderers.Count - 1);
}
}
}
}
private void ProcessWaitingKeepWithNextElement(IRenderer renderer)
{
if (keepWithNextHangingRenderer != null)
{
LayoutArea rest = currentArea.Clone();
rest.GetBBox().SetHeight(rest.GetBBox().GetHeight() - keepWithNextHangingRendererLayoutResult.GetOccupiedArea
().GetBBox().GetHeight());
bool ableToProcessKeepWithNext = false;
if (renderer.SetParent(this).Layout(new LayoutContext(rest)).GetStatus() != LayoutResult.NOTHING)
{
// The area break will not be introduced and we are safe to place everything as is
ShrinkCurrentAreaAndProcessRenderer(keepWithNextHangingRenderer, new List <IRenderer>(), keepWithNextHangingRendererLayoutResult
);
ableToProcessKeepWithNext = true;
}
else
{
float originalElementHeight = keepWithNextHangingRendererLayoutResult.GetOccupiedArea().GetBBox().GetHeight
();
IList <float> trySplitHeightPoints = new List <float>();
float delta = 35;
for (int i = 1; i <= 5 && originalElementHeight - delta * i > originalElementHeight / 2; i++)
{
trySplitHeightPoints.Add(originalElementHeight - delta * i);
}
for (int i = 0; i < trySplitHeightPoints.Count && !ableToProcessKeepWithNext; i++)
{
float curElementSplitHeight = trySplitHeightPoints[i];
RootLayoutArea firstElementSplitLayoutArea = (RootLayoutArea)currentArea.Clone();
firstElementSplitLayoutArea.GetBBox().SetHeight(curElementSplitHeight).MoveUp(currentArea.GetBBox().GetHeight
() - curElementSplitHeight);
LayoutResult firstElementSplitLayoutResult = keepWithNextHangingRenderer.SetParent(this).Layout(new LayoutContext
(firstElementSplitLayoutArea.Clone()));
if (firstElementSplitLayoutResult.GetStatus() == LayoutResult.PARTIAL)
{
RootLayoutArea storedArea = currentArea;
UpdateCurrentAndInitialArea(firstElementSplitLayoutResult);
LayoutResult firstElementOverflowLayoutResult = firstElementSplitLayoutResult.GetOverflowRenderer().Layout
(new LayoutContext(currentArea.Clone()));
if (firstElementOverflowLayoutResult.GetStatus() == LayoutResult.FULL)
{
LayoutArea secondElementLayoutArea = currentArea.Clone();
secondElementLayoutArea.GetBBox().SetHeight(secondElementLayoutArea.GetBBox().GetHeight() - firstElementOverflowLayoutResult
.GetOccupiedArea().GetBBox().GetHeight());
LayoutResult secondElementLayoutResult = renderer.SetParent(this).Layout(new LayoutContext(secondElementLayoutArea
));
if (secondElementLayoutResult.GetStatus() != LayoutResult.NOTHING)
{
ableToProcessKeepWithNext = true;
currentArea = firstElementSplitLayoutArea;
currentPageNumber = firstElementSplitLayoutArea.GetPageNumber();
ShrinkCurrentAreaAndProcessRenderer(firstElementSplitLayoutResult.GetSplitRenderer(), new List <IRenderer>(
), firstElementSplitLayoutResult);
UpdateCurrentAndInitialArea(firstElementSplitLayoutResult);
ShrinkCurrentAreaAndProcessRenderer(firstElementSplitLayoutResult.GetOverflowRenderer(), new List <IRenderer
>(), firstElementOverflowLayoutResult);
}
}
if (!ableToProcessKeepWithNext)
{
currentArea = storedArea;
currentPageNumber = storedArea.GetPageNumber();
}
}
}
}
if (!ableToProcessKeepWithNext && !currentArea.IsEmptyArea())
{
RootLayoutArea storedArea = currentArea;
UpdateCurrentAndInitialArea(null);
LayoutResult firstElementLayoutResult = keepWithNextHangingRenderer.SetParent(this).Layout(new LayoutContext
(currentArea.Clone()));
if (firstElementLayoutResult.GetStatus() == LayoutResult.FULL)
{
LayoutArea secondElementLayoutArea = currentArea.Clone();
secondElementLayoutArea.GetBBox().SetHeight(secondElementLayoutArea.GetBBox().GetHeight() - firstElementLayoutResult
.GetOccupiedArea().GetBBox().GetHeight());
LayoutResult secondElementLayoutResult = renderer.SetParent(this).Layout(new LayoutContext(secondElementLayoutArea
));
if (secondElementLayoutResult.GetStatus() != LayoutResult.NOTHING)
{
ableToProcessKeepWithNext = true;
ShrinkCurrentAreaAndProcessRenderer(keepWithNextHangingRenderer, new List <IRenderer>(), keepWithNextHangingRendererLayoutResult
);
}
}
if (!ableToProcessKeepWithNext)
{
currentArea = storedArea;
currentPageNumber = storedArea.GetPageNumber();
}
}
if (!ableToProcessKeepWithNext)
{
ILog logger = LogManager.GetLogger(typeof(RootRenderer));
logger.Warn(iText.IO.LogMessageConstant.RENDERER_WAS_NOT_ABLE_TO_PROCESS_KEEP_WITH_NEXT);
ShrinkCurrentAreaAndProcessRenderer(keepWithNextHangingRenderer, new List <IRenderer>(), keepWithNextHangingRendererLayoutResult
);
}
keepWithNextHangingRenderer = null;
keepWithNextHangingRendererLayoutResult = null;
}
}
// TODO underlying should not be applied
// https://jira.itextsupport.com/browse/SUP-952
public override LayoutResult Layout(LayoutContext layoutContext)
{
if (!HasOwnProperty(Property.LIST_SYMBOLS_INITIALIZED))
{
IList <IRenderer> symbolRenderers = new List <IRenderer>();
int listItemNum = (int)this.GetProperty <int?>(Property.LIST_START, 1);
for (int i = 0; i < childRenderers.Count; i++)
{
if (childRenderers[i].GetModelElement() is ListItem)
{
childRenderers[i].SetParent(this);
IRenderer currentSymbolRenderer = MakeListSymbolRenderer(listItemNum++, childRenderers[i]);
childRenderers[i].SetParent(null);
symbolRenderers.Add(currentSymbolRenderer);
LayoutResult listSymbolLayoutResult = currentSymbolRenderer.SetParent(this).Layout(layoutContext);
currentSymbolRenderer.SetParent(null);
if (listSymbolLayoutResult.GetStatus() != LayoutResult.FULL)
{
return(new LayoutResult(LayoutResult.NOTHING, null, null, this, listSymbolLayoutResult.GetCauseOfNothing()
));
}
}
}
float maxSymbolWidth = 0;
foreach (IRenderer symbolRenderer in symbolRenderers)
{
maxSymbolWidth = Math.Max(maxSymbolWidth, symbolRenderer.GetOccupiedArea().GetBBox().GetWidth());
}
float?symbolIndent = modelElement.GetProperty <float?>(Property.LIST_SYMBOL_INDENT);
listItemNum = 0;
foreach (IRenderer childRenderer in childRenderers)
{
childRenderer.DeleteOwnProperty(Property.MARGIN_LEFT);
childRenderer.SetProperty(Property.MARGIN_LEFT, childRenderer.GetProperty(Property.MARGIN_LEFT, (float?)0f
) + maxSymbolWidth + (symbolIndent != null ? symbolIndent : 0f));
if (childRenderer.GetModelElement() is ListItem)
{
IRenderer symbolRenderer_1 = symbolRenderers[listItemNum++];
((ListItemRenderer)childRenderer).AddSymbolRenderer(symbolRenderer_1, maxSymbolWidth);
}
}
}
LayoutResult result = base.Layout(layoutContext);
// cannot place even the first ListItemRenderer
if (true.Equals(GetPropertyAsBoolean(Property.FORCED_PLACEMENT)) && null != result.GetCauseOfNothing())
{
if (LayoutResult.FULL == result.GetStatus())
{
result = CorrectListSplitting(this, null, result.GetCauseOfNothing(), result.GetOccupiedArea());
}
else
{
if (LayoutResult.PARTIAL == result.GetStatus())
{
result = CorrectListSplitting(result.GetSplitRenderer(), result.GetOverflowRenderer(), result.GetCauseOfNothing
(), result.GetOccupiedArea());
}
}
}
return(result);
}
public static MinMaxWidth CountDefaultMinMaxWidth(IRenderer renderer)
{
LayoutResult result = renderer.Layout(new LayoutContext(new LayoutArea(1, new Rectangle(GetInfWidth(), GetInfHeight
()))));
return(result.GetStatus() == LayoutResult.NOTHING ? new MinMaxWidth() : new MinMaxWidth(0, result.GetOccupiedArea
().GetBBox().GetWidth(), 0));
}
