protected internal override void FlushSingleRenderer(IRenderer resultRenderer)
{
Transform transformProp = resultRenderer.GetProperty <Transform>(Property.TRANSFORM);
if (!waitingDrawingElements.Contains(resultRenderer))
{
ProcessWaitingDrawing(resultRenderer, transformProp, waitingDrawingElements);
if (FloatingHelper.IsRendererFloating(resultRenderer) || transformProp != null)
{
return;
}
}
if (!resultRenderer.IsFlushed() && null != resultRenderer.GetOccupiedArea())
{
// TODO Remove checking occupied area to be not null when DEVSIX-1001 is resolved.
int pageNum = resultRenderer.GetOccupiedArea().GetPageNumber();
PdfDocument pdfDocument = document.GetPdfDocument();
EnsureDocumentHasNPages(pageNum, null);
PdfPage correspondingPage = pdfDocument.GetPage(pageNum);
if (correspondingPage.IsFlushed())
{
throw new PdfException(PdfException.CannotDrawElementsOnAlreadyFlushedPages);
}
bool wrapOldContent = pdfDocument.GetReader() != null && pdfDocument.GetWriter() != null && correspondingPage
.GetContentStreamCount() > 0 && correspondingPage.GetLastContentStream().GetLength() > 0 && !wrappedContentPage
.Contains(pageNum) && pdfDocument.GetNumberOfPages() >= pageNum;
wrappedContentPage.Add(pageNum);
if (pdfDocument.IsTagged())
{
pdfDocument.GetTagStructureContext().GetAutoTaggingPointer().SetPageForTagging(correspondingPage);
}
resultRenderer.Draw(new DrawContext(pdfDocument, new PdfCanvas(correspondingPage, wrapOldContent), pdfDocument
.IsTagged()));
}
}
private void AlignStaticKids(LineRenderer renderer, float dxRight)
{
renderer.GetOccupiedArea().GetBBox().MoveRight(dxRight);
foreach (IRenderer childRenderer in renderer.GetChildRenderers())
{
if (FloatingHelper.IsRendererFloating(childRenderer))
{
continue;
}
childRenderer.Move(dxRight, 0);
}
}
private void ApplyTextAlignment(TextAlignment?textAlignment, LineLayoutResult result, LineRenderer processedRenderer
, Rectangle layoutBox, IList <Rectangle> floatRendererAreas, bool onlyOverflowedFloatsLeft, float lineIndent
)
{
if (textAlignment == TextAlignment.JUSTIFIED && result.GetStatus() == LayoutResult.PARTIAL && !result.IsSplitForcedByNewline
() && !onlyOverflowedFloatsLeft || textAlignment == TextAlignment.JUSTIFIED_ALL)
{
if (processedRenderer != null)
{
Rectangle actualLineLayoutBox = layoutBox.Clone();
FloatingHelper.AdjustLineAreaAccordingToFloats(floatRendererAreas, actualLineLayoutBox);
processedRenderer.Justify(actualLineLayoutBox.GetWidth() - lineIndent);
}
}
else
{
if (textAlignment != TextAlignment.LEFT && processedRenderer != null)
{
Rectangle actualLineLayoutBox = layoutBox.Clone();
FloatingHelper.AdjustLineAreaAccordingToFloats(floatRendererAreas, actualLineLayoutBox);
float deltaX = Math.Max(0, actualLineLayoutBox.GetWidth() - lineIndent - processedRenderer.GetOccupiedArea
().GetBBox().GetWidth());
switch (textAlignment)
{
case TextAlignment.RIGHT: {
AlignStaticKids(processedRenderer, deltaX);
break;
}
case TextAlignment.CENTER: {
AlignStaticKids(processedRenderer, deltaX / 2);
break;
}
case TextAlignment.JUSTIFIED: {
if (BaseDirection.RIGHT_TO_LEFT.Equals(this.GetProperty <BaseDirection?>(Property.BASE_DIRECTION)))
{
AlignStaticKids(processedRenderer, deltaX);
}
break;
}
}
}
}
}
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);
}
}
/// <summary><inheritDoc/></summary>
protected internal override void FlushSingleRenderer(IRenderer resultRenderer)
{
Transform transformProp = resultRenderer.GetProperty <Transform>(Property.TRANSFORM);
if (!waitingDrawingElements.Contains(resultRenderer))
{
ProcessWaitingDrawing(resultRenderer, transformProp, waitingDrawingElements);
if (FloatingHelper.IsRendererFloating(resultRenderer) || transformProp != null)
{
return;
}
}
if (!resultRenderer.IsFlushed())
{
bool toTag = canvas.GetPdfDocument().IsTagged() && canvas.IsAutoTaggingEnabled();
TagTreePointer tagPointer = null;
if (toTag)
{
tagPointer = canvas.GetPdfDocument().GetTagStructureContext().GetAutoTaggingPointer();
tagPointer.SetPageForTagging(canvas.GetPage());
bool pageStream = false;
for (int i = canvas.GetPage().GetContentStreamCount() - 1; i >= 0; --i)
{
if (canvas.GetPage().GetContentStream(i).Equals(canvas.GetPdfCanvas().GetContentStream()))
{
pageStream = true;
break;
}
}
if (!pageStream)
{
tagPointer.SetContentStreamForTagging(canvas.GetPdfCanvas().GetContentStream());
}
}
resultRenderer.Draw(new DrawContext(canvas.GetPdfDocument(), canvas.GetPdfCanvas(), toTag));
if (toTag)
{
tagPointer.SetContentStreamForTagging(null);
}
}
}
public override void AddChild(IRenderer renderer)
{
LayoutTaggingHelper taggingHelper = this.GetProperty <LayoutTaggingHelper>(Property.TAGGING_HELPER);
if (taggingHelper != null)
{
LayoutTaggingHelper.AddTreeHints(taggingHelper, renderer);
}
// Some positioned renderers might have been fetched from non-positioned child and added to this renderer,
// so we use this generic mechanism of determining which renderers have been just added.
int numberOfChildRenderers = childRenderers.Count;
int numberOfPositionedChildRenderers = positionedRenderers.Count;
base.AddChild(renderer);
IList <IRenderer> addedRenderers = new List <IRenderer>(1);
IList <IRenderer> addedPositionedRenderers = new List <IRenderer>(1);
while (childRenderers.Count > numberOfChildRenderers)
{
addedRenderers.Add(childRenderers[numberOfChildRenderers]);
childRenderers.JRemoveAt(numberOfChildRenderers);
}
while (positionedRenderers.Count > numberOfPositionedChildRenderers)
{
addedPositionedRenderers.Add(positionedRenderers[numberOfPositionedChildRenderers]);
positionedRenderers.JRemoveAt(numberOfPositionedChildRenderers);
}
bool marginsCollapsingEnabled = true.Equals(GetPropertyAsBoolean(Property.COLLAPSING_MARGINS));
if (currentArea == null)
{
UpdateCurrentAndInitialArea(null);
if (marginsCollapsingEnabled)
{
marginsCollapseHandler = new MarginsCollapseHandler(this, null);
}
}
// Static layout
for (int i = 0; currentArea != null && i < addedRenderers.Count; i++)
{
renderer = addedRenderers[i];
bool rendererIsFloat = FloatingHelper.IsRendererFloating(renderer);
bool clearanceOverflowsToNextPage = FloatingHelper.IsClearanceApplied(waitingNextPageRenderers, renderer.GetProperty
<ClearPropertyValue?>(Property.CLEAR));
if (rendererIsFloat && (floatOverflowedCompletely || clearanceOverflowsToNextPage))
{
waitingNextPageRenderers.Add(renderer);
floatOverflowedCompletely = true;
continue;
}
ProcessWaitingKeepWithNextElement(renderer);
IList <IRenderer> resultRenderers = new List <IRenderer>();
LayoutResult result = null;
RootLayoutArea storedArea = null;
RootLayoutArea nextStoredArea = null;
MarginsCollapseInfo childMarginsInfo = null;
if (marginsCollapsingEnabled && currentArea != null && renderer != null)
{
childMarginsInfo = marginsCollapseHandler.StartChildMarginsHandling(renderer, currentArea.GetBBox());
}
while (clearanceOverflowsToNextPage || currentArea != null && renderer != null && (result = renderer.SetParent
(this).Layout(new LayoutContext(currentArea.Clone(), childMarginsInfo, floatRendererAreas))).GetStatus
() != LayoutResult.FULL)
{
bool currentAreaNeedsToBeUpdated = false;
if (clearanceOverflowsToNextPage)
{
result = new LayoutResult(LayoutResult.NOTHING, null, null, renderer);
currentAreaNeedsToBeUpdated = true;
}
if (result.GetStatus() == LayoutResult.PARTIAL)
{
if (rendererIsFloat)
{
waitingNextPageRenderers.Add(result.GetOverflowRenderer());
break;
}
else
{
ProcessRenderer(result.GetSplitRenderer(), resultRenderers);
if (nextStoredArea != null)
{
currentArea = nextStoredArea;
currentPageNumber = nextStoredArea.GetPageNumber();
nextStoredArea = null;
}
else
{
currentAreaNeedsToBeUpdated = true;
}
}
}
else
{
if (result.GetStatus() == LayoutResult.NOTHING && !clearanceOverflowsToNextPage)
{
if (result.GetOverflowRenderer() is ImageRenderer)
{
float imgHeight = ((ImageRenderer)result.GetOverflowRenderer()).GetOccupiedArea().GetBBox().GetHeight();
if (!floatRendererAreas.IsEmpty() || currentArea.GetBBox().GetHeight() < imgHeight && !currentArea.IsEmptyArea
())
{
if (rendererIsFloat)
{
waitingNextPageRenderers.Add(result.GetOverflowRenderer());
floatOverflowedCompletely = true;
break;
}
currentAreaNeedsToBeUpdated = true;
}
else
{
((ImageRenderer)result.GetOverflowRenderer()).AutoScale(currentArea);
result.GetOverflowRenderer().SetProperty(Property.FORCED_PLACEMENT, true);
ILog logger = LogManager.GetLogger(typeof(RootRenderer));
logger.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.ELEMENT_DOES_NOT_FIT_AREA, ""));
}
}
else
{
if (currentArea.IsEmptyArea() && result.GetAreaBreak() == null)
{
if (true.Equals(result.GetOverflowRenderer().GetModelElement().GetProperty <bool?>(Property.KEEP_TOGETHER))
)
{
result.GetOverflowRenderer().GetModelElement().SetProperty(Property.KEEP_TOGETHER, false);
ILog logger = LogManager.GetLogger(typeof(RootRenderer));
logger.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.ELEMENT_DOES_NOT_FIT_AREA, "KeepTogether property will be ignored."
));
if (storedArea != null)
{
nextStoredArea = currentArea;
currentArea = storedArea;
currentPageNumber = storedArea.GetPageNumber();
}
storedArea = currentArea;
}
else
{
if (null != result.GetCauseOfNothing() && true.Equals(result.GetCauseOfNothing().GetProperty <bool?>(Property
.KEEP_TOGETHER)))
{
// set KEEP_TOGETHER false on the deepest parent (maybe the element itself) to have KEEP_TOGETHER == true
IRenderer theDeepestKeptTogether = result.GetCauseOfNothing();
IRenderer parent;
while (null == theDeepestKeptTogether.GetModelElement() || null == theDeepestKeptTogether.GetModelElement(
).GetOwnProperty <bool?>(Property.KEEP_TOGETHER))
{
parent = ((AbstractRenderer)theDeepestKeptTogether).parent;
if (parent == null)
{
break;
}
theDeepestKeptTogether = parent;
}
theDeepestKeptTogether.GetModelElement().SetProperty(Property.KEEP_TOGETHER, false);
ILog logger = LogManager.GetLogger(typeof(RootRenderer));
logger.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.ELEMENT_DOES_NOT_FIT_AREA, "KeepTogether property of inner element will be ignored."
));
}
else
{
if (!true.Equals(renderer.GetProperty <bool?>(Property.FORCED_PLACEMENT)))
{
result.GetOverflowRenderer().SetProperty(Property.FORCED_PLACEMENT, true);
ILog logger = LogManager.GetLogger(typeof(RootRenderer));
logger.Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.ELEMENT_DOES_NOT_FIT_AREA, ""));
}
else
{
// FORCED_PLACEMENT was already set to the renderer and
// LogMessageConstant.ELEMENT_DOES_NOT_FIT_AREA message was logged.
// This else-clause should never be hit, otherwise there is a bug in FORCED_PLACEMENT implementation.
System.Diagnostics.Debug.Assert(false);
// Still handling this case in order to avoid nasty infinite loops.
break;
}
}
}
}
else
{
storedArea = currentArea;
if (nextStoredArea != null)
{
currentArea = nextStoredArea;
currentPageNumber = nextStoredArea.GetPageNumber();
nextStoredArea = null;
}
else
{
if (rendererIsFloat)
{
waitingNextPageRenderers.Add(result.GetOverflowRenderer());
floatOverflowedCompletely = true;
break;
}
currentAreaNeedsToBeUpdated = true;
}
}
}
}
}
renderer = result.GetOverflowRenderer();
if (marginsCollapsingEnabled)
{
marginsCollapseHandler.EndChildMarginsHandling(currentArea.GetBBox());
}
if (currentAreaNeedsToBeUpdated)
{
UpdateCurrentAndInitialArea(result);
}
if (marginsCollapsingEnabled)
{
marginsCollapseHandler = new MarginsCollapseHandler(this, null);
childMarginsInfo = marginsCollapseHandler.StartChildMarginsHandling(renderer, currentArea.GetBBox());
}
clearanceOverflowsToNextPage = clearanceOverflowsToNextPage && FloatingHelper.IsClearanceApplied(waitingNextPageRenderers
, renderer.GetProperty <ClearPropertyValue?>(Property.CLEAR));
}
if (marginsCollapsingEnabled)
{
marginsCollapseHandler.EndChildMarginsHandling(currentArea.GetBBox());
}
if (null != result && null != result.GetSplitRenderer())
{
renderer = result.GetSplitRenderer();
}
// Keep renderer until next element is added for future keep with next adjustments
if (renderer != null && result != null)
{
if (true.Equals(renderer.GetProperty <bool?>(Property.KEEP_WITH_NEXT)))
{
if (true.Equals(renderer.GetProperty <bool?>(Property.FORCED_PLACEMENT)))
{
ILog logger = LogManager.GetLogger(typeof(RootRenderer));
logger.Warn(iText.IO.LogMessageConstant.ELEMENT_WAS_FORCE_PLACED_KEEP_WITH_NEXT_WILL_BE_IGNORED);
ShrinkCurrentAreaAndProcessRenderer(renderer, resultRenderers, result);
}
else
{
keepWithNextHangingRenderer = renderer;
keepWithNextHangingRendererLayoutResult = result;
}
}
else
{
if (result.GetStatus() != LayoutResult.NOTHING)
{
ShrinkCurrentAreaAndProcessRenderer(renderer, resultRenderers, result);
}
}
}
}
for (int i = 0; i < addedPositionedRenderers.Count; i++)
{
positionedRenderers.Add(addedPositionedRenderers[i]);
renderer = positionedRenderers[positionedRenderers.Count - 1];
int?positionedPageNumber = renderer.GetProperty <int?>(Property.PAGE_NUMBER);
if (positionedPageNumber == null)
{
positionedPageNumber = currentPageNumber;
}
LayoutArea layoutArea;
// For position=absolute, if none of the top, bottom, left, right properties are provided,
// the content should be displayed in the flow of the current content, not overlapping it.
// The behavior is just if it would be statically positioned except it does not affect other elements
if (Convert.ToInt32(LayoutPosition.ABSOLUTE).Equals(renderer.GetProperty <int?>(Property.POSITION)) && AbstractRenderer
.NoAbsolutePositionInfo(renderer))
{
layoutArea = new LayoutArea((int)positionedPageNumber, currentArea.GetBBox().Clone());
}
else
{
layoutArea = new LayoutArea((int)positionedPageNumber, initialCurrentArea.GetBBox().Clone());
}
Rectangle fullBbox = layoutArea.GetBBox().Clone();
PreparePositionedRendererAndAreaForLayout(renderer, fullBbox, layoutArea.GetBBox());
renderer.Layout(new PositionedLayoutContext(new LayoutArea(layoutArea.GetPageNumber(), fullBbox), layoutArea
));
if (immediateFlush)
{
FlushSingleRenderer(renderer);
positionedRenderers.JRemoveAt(positionedRenderers.Count - 1);
}
}
}
/// <summary>Defines whether a renderer creates a new "Block formatting context" in terms of CSS.</summary>
/// <remarks>
/// Defines whether a renderer creates a new "Block formatting context" in terms of CSS.
/// <para />
/// See
/// <see cref="BlockFormattingContextUtil"/>
/// class description for more info.
/// </remarks>
/// <param name="renderer">
/// an
/// <see cref="IRenderer"/>
/// to be checked.
/// </param>
/// <returns>true if given renderer creates a new "Block formatting context" in terms of CSS, false otherwise.
/// </returns>
public static bool IsRendererCreateBfc(IRenderer renderer)
{
return((renderer is RootRenderer) || (renderer is CellRenderer) || IsInlineBlock(renderer) || FloatingHelper
.IsRendererFloating(renderer) || IsAbsolutePosition(renderer) || IsFixedPosition(renderer) || IsCaption
(renderer) || AbstractRenderer.IsOverflowProperty(OverflowPropertyValue.HIDDEN, renderer, Property.OVERFLOW_X
) || AbstractRenderer.IsOverflowProperty(OverflowPropertyValue.HIDDEN, renderer, Property.OVERFLOW_Y));
}
public override LayoutResult Layout(LayoutContext layoutContext)
{
LayoutArea area = layoutContext.GetArea().Clone();
Rectangle layoutBox = area.GetBBox().Clone();
AffineTransform t = new AffineTransform();
Image modelElement = (Image)(GetModelElement());
PdfXObject xObject = modelElement.GetXObject();
imageWidth = modelElement.GetImageWidth();
imageHeight = modelElement.GetImageHeight();
CalculateImageDimensions(layoutBox, t, xObject);
OverflowPropertyValue?overflowX = null != parent?parent.GetProperty <OverflowPropertyValue?>(Property.OVERFLOW_X
) : OverflowPropertyValue.FIT;
bool nowrap = false;
if (parent is LineRenderer)
{
nowrap = true.Equals(this.parent.GetOwnProperty <bool?>(Property.NO_SOFT_WRAP_INLINE));
}
IList <Rectangle> floatRendererAreas = layoutContext.GetFloatRendererAreas();
float clearHeightCorrection = FloatingHelper.CalculateClearHeightCorrection(this, floatRendererAreas, layoutBox
);
FloatPropertyValue?floatPropertyValue = this.GetProperty <FloatPropertyValue?>(Property.FLOAT);
if (FloatingHelper.IsRendererFloating(this, floatPropertyValue))
{
layoutBox.DecreaseHeight(clearHeightCorrection);
FloatingHelper.AdjustFloatedBlockLayoutBox(this, layoutBox, width, floatRendererAreas, floatPropertyValue,
overflowX);
}
else
{
clearHeightCorrection = FloatingHelper.AdjustLayoutBoxAccordingToFloats(floatRendererAreas, layoutBox, width
, clearHeightCorrection, null);
}
ApplyMargins(layoutBox, false);
Border[] borders = GetBorders();
ApplyBorderBox(layoutBox, borders, false);
float?declaredMaxHeight = RetrieveMaxHeight();
OverflowPropertyValue?overflowY = null == parent || ((null == declaredMaxHeight || declaredMaxHeight > layoutBox
.GetHeight()) && !layoutContext.IsClippedHeight()) ? OverflowPropertyValue.FIT : parent.GetProperty <OverflowPropertyValue?
>(Property.OVERFLOW_Y);
bool processOverflowX = !IsOverflowFit(overflowX) || nowrap;
bool processOverflowY = !IsOverflowFit(overflowY);
if (IsAbsolutePosition())
{
ApplyAbsolutePosition(layoutBox);
}
occupiedArea = new LayoutArea(area.GetPageNumber(), new Rectangle(layoutBox.GetX(), layoutBox.GetY() + layoutBox
.GetHeight(), 0, 0));
float imageItselfScaledWidth = (float)width;
float imageItselfScaledHeight = (float)height;
if (IsFixedLayout())
{
fixedXPosition = this.GetPropertyAsFloat(Property.LEFT);
fixedYPosition = this.GetPropertyAsFloat(Property.BOTTOM);
}
float?angle = this.GetPropertyAsFloat(Property.ROTATION_ANGLE);
// See in adjustPositionAfterRotation why angle = 0 is necessary
if (null == angle)
{
angle = 0f;
}
t.Rotate((float)angle);
initialOccupiedAreaBBox = GetOccupiedAreaBBox().Clone();
float scaleCoef = AdjustPositionAfterRotation((float)angle, layoutBox.GetWidth(), layoutBox.GetHeight());
imageItselfScaledHeight *= scaleCoef;
imageItselfScaledWidth *= scaleCoef;
initialOccupiedAreaBBox.MoveDown(imageItselfScaledHeight);
initialOccupiedAreaBBox.SetHeight(imageItselfScaledHeight);
initialOccupiedAreaBBox.SetWidth(imageItselfScaledWidth);
if (xObject is PdfFormXObject)
{
t.Scale(scaleCoef, scaleCoef);
}
GetMatrix(t, imageItselfScaledWidth, imageItselfScaledHeight);
// indicates whether the placement is forced
bool isPlacingForced = false;
if (width > layoutBox.GetWidth() || height > layoutBox.GetHeight())
{
if (true.Equals(GetPropertyAsBoolean(Property.FORCED_PLACEMENT)) || (width > layoutBox.GetWidth() && processOverflowX
) || (height > layoutBox.GetHeight() && processOverflowY))
{
isPlacingForced = true;
}
else
{
ApplyMargins(initialOccupiedAreaBBox, true);
ApplyBorderBox(initialOccupiedAreaBBox, true);
occupiedArea.GetBBox().SetHeight(initialOccupiedAreaBBox.GetHeight());
return(new MinMaxWidthLayoutResult(LayoutResult.NOTHING, occupiedArea, null, this, this));
}
}
occupiedArea.GetBBox().MoveDown((float)height);
if (borders[3] != null)
{
height += (float)Math.Sin((float)angle) * borders[3].GetWidth();
}
occupiedArea.GetBBox().SetHeight((float)height);
occupiedArea.GetBBox().SetWidth((float)width);
UnitValue leftMargin = this.GetPropertyAsUnitValue(Property.MARGIN_LEFT);
if (!leftMargin.IsPointValue())
{
ILog logger = LogManager.GetLogger(typeof(iText.Layout.Renderer.ImageRenderer));
logger.Error(MessageFormatUtil.Format(iText.IO.LogMessageConstant.PROPERTY_IN_PERCENTS_NOT_SUPPORTED, Property
.MARGIN_LEFT));
}
UnitValue topMargin = this.GetPropertyAsUnitValue(Property.MARGIN_TOP);
if (!topMargin.IsPointValue())
{
ILog logger = LogManager.GetLogger(typeof(iText.Layout.Renderer.ImageRenderer));
logger.Error(MessageFormatUtil.Format(iText.IO.LogMessageConstant.PROPERTY_IN_PERCENTS_NOT_SUPPORTED, Property
.MARGIN_TOP));
}
if (0 != leftMargin.GetValue() || 0 != topMargin.GetValue())
{
TranslateImage(leftMargin.GetValue(), topMargin.GetValue(), t);
GetMatrix(t, imageItselfScaledWidth, imageItselfScaledHeight);
}
ApplyBorderBox(occupiedArea.GetBBox(), borders, true);
ApplyMargins(occupiedArea.GetBBox(), true);
if (angle != 0)
{
ApplyRotationLayout((float)angle);
}
float unscaledWidth = occupiedArea.GetBBox().GetWidth() / scaleCoef;
MinMaxWidth minMaxWidth = new MinMaxWidth(unscaledWidth, unscaledWidth, 0);
UnitValue rendererWidth = this.GetProperty <UnitValue>(Property.WIDTH);
if (rendererWidth != null && rendererWidth.IsPercentValue())
{
minMaxWidth.SetChildrenMinWidth(0);
float coeff = imageWidth / (float)RetrieveWidth(area.GetBBox().GetWidth());
minMaxWidth.SetChildrenMaxWidth(unscaledWidth * coeff);
}
else
{
bool autoScale = HasProperty(Property.AUTO_SCALE) && (bool)this.GetProperty <bool?>(Property.AUTO_SCALE);
bool autoScaleWidth = HasProperty(Property.AUTO_SCALE_WIDTH) && (bool)this.GetProperty <bool?>(Property.AUTO_SCALE_WIDTH
);
if (autoScale || autoScaleWidth)
{
minMaxWidth.SetChildrenMinWidth(0);
}
}
FloatingHelper.RemoveFloatsAboveRendererBottom(floatRendererAreas, this);
LayoutArea editedArea = FloatingHelper.AdjustResultOccupiedAreaForFloatAndClear(this, floatRendererAreas,
layoutContext.GetArea().GetBBox(), clearHeightCorrection, false);
ApplyAbsolutePositionIfNeeded(layoutContext);
return(new MinMaxWidthLayoutResult(LayoutResult.FULL, editedArea, null, null, isPlacingForced ? this : null
).SetMinMaxWidth(minMaxWidth));
}
protected internal virtual LayoutResult DirectLayout(LayoutContext layoutContext)
{
bool wasHeightClipped = false;
bool wasParentsHeightClipped = layoutContext.IsClippedHeight();
int pageNumber = layoutContext.GetArea().GetPageNumber();
bool anythingPlaced = false;
bool firstLineInBox = true;
LineRenderer currentRenderer = (LineRenderer) new LineRenderer().SetParent(this);
Rectangle parentBBox = layoutContext.GetArea().GetBBox().Clone();
MarginsCollapseHandler marginsCollapseHandler = null;
bool marginsCollapsingEnabled = true.Equals(GetPropertyAsBoolean(Property.COLLAPSING_MARGINS));
if (marginsCollapsingEnabled)
{
marginsCollapseHandler = new MarginsCollapseHandler(this, layoutContext.GetMarginsCollapseInfo());
}
OverflowPropertyValue?overflowX = this.GetProperty <OverflowPropertyValue?>(Property.OVERFLOW_X);
bool?nowrapProp = this.GetPropertyAsBoolean(Property.NO_SOFT_WRAP_INLINE);
currentRenderer.SetProperty(Property.NO_SOFT_WRAP_INLINE, nowrapProp);
bool notAllKidsAreFloats = false;
IList <Rectangle> floatRendererAreas = layoutContext.GetFloatRendererAreas();
FloatPropertyValue?floatPropertyValue = this.GetProperty <FloatPropertyValue?>(Property.FLOAT);
float clearHeightCorrection = FloatingHelper.CalculateClearHeightCorrection(this, floatRendererAreas, parentBBox
);
FloatingHelper.ApplyClearance(parentBBox, marginsCollapseHandler, clearHeightCorrection, FloatingHelper.IsRendererFloating
(this));
float?blockWidth = RetrieveWidth(parentBBox.GetWidth());
if (FloatingHelper.IsRendererFloating(this, floatPropertyValue))
{
blockWidth = FloatingHelper.AdjustFloatedBlockLayoutBox(this, parentBBox, blockWidth, floatRendererAreas,
floatPropertyValue, overflowX);
floatRendererAreas = new List <Rectangle>();
}
if (0 == childRenderers.Count)
{
anythingPlaced = true;
currentRenderer = null;
}
bool isPositioned = IsPositioned();
float?rotation = this.GetPropertyAsFloat(Property.ROTATION_ANGLE);
float?blockMaxHeight = RetrieveMaxHeight();
OverflowPropertyValue?overflowY = (null == blockMaxHeight || blockMaxHeight > parentBBox.GetHeight()) &&
!wasParentsHeightClipped ? OverflowPropertyValue.FIT : this.GetProperty <OverflowPropertyValue?>(Property
.OVERFLOW_Y);
if (rotation != null || IsFixedLayout())
{
parentBBox.MoveDown(AbstractRenderer.INF - parentBBox.GetHeight()).SetHeight(AbstractRenderer.INF);
}
if (rotation != null && !FloatingHelper.IsRendererFloating(this))
{
blockWidth = RotationUtils.RetrieveRotatedLayoutWidth(parentBBox.GetWidth(), this);
}
if (marginsCollapsingEnabled)
{
marginsCollapseHandler.StartMarginsCollapse(parentBBox);
}
Border[] borders = GetBorders();
UnitValue[] paddings = GetPaddings();
float additionalWidth = ApplyBordersPaddingsMargins(parentBBox, borders, paddings);
ApplyWidth(parentBBox, blockWidth, overflowX);
wasHeightClipped = ApplyMaxHeight(parentBBox, blockMaxHeight, marginsCollapseHandler, false, wasParentsHeightClipped
, overflowY);
MinMaxWidth minMaxWidth = new MinMaxWidth(additionalWidth);
AbstractWidthHandler widthHandler = new MaxMaxWidthHandler(minMaxWidth);
IList <Rectangle> areas;
if (isPositioned)
{
areas = JavaCollectionsUtil.SingletonList(parentBBox);
}
else
{
areas = InitElementAreas(new LayoutArea(pageNumber, parentBBox));
}
occupiedArea = new LayoutArea(pageNumber, new Rectangle(parentBBox.GetX(), parentBBox.GetY() + parentBBox.
GetHeight(), parentBBox.GetWidth(), 0));
ShrinkOccupiedAreaForAbsolutePosition();
int currentAreaPos = 0;
Rectangle layoutBox = areas[0].Clone();
lines = new List <LineRenderer>();
foreach (IRenderer child in childRenderers)
{
notAllKidsAreFloats = notAllKidsAreFloats || !FloatingHelper.IsRendererFloating(child);
currentRenderer.AddChild(child);
}
float lastYLine = layoutBox.GetY() + layoutBox.GetHeight();
float previousDescent = 0;
float lastLineBottomLeadingIndent = 0;
bool onlyOverflowedFloatsLeft = false;
IList <IRenderer> inlineFloatsOverflowedToNextPage = new List <IRenderer>();
bool floatOverflowedToNextPageWithNothing = false;
// rectangles are compared by instances
ICollection <Rectangle> nonChildFloatingRendererAreas = new HashSet <Rectangle>(floatRendererAreas);
if (marginsCollapsingEnabled && childRenderers.Count > 0)
{
// passing null is sufficient to notify that there is a kid, however we don't care about it and it's margins
marginsCollapseHandler.StartChildMarginsHandling(null, layoutBox);
}
bool includeFloatsInOccupiedArea = BlockFormattingContextUtil.IsRendererCreateBfc(this);
while (currentRenderer != null)
{
currentRenderer.SetProperty(Property.TAB_DEFAULT, this.GetPropertyAsFloat(Property.TAB_DEFAULT));
currentRenderer.SetProperty(Property.TAB_STOPS, this.GetProperty <Object>(Property.TAB_STOPS));
float lineIndent = anythingPlaced ? 0 : (float)this.GetPropertyAsFloat(Property.FIRST_LINE_INDENT);
Rectangle childLayoutBox = new Rectangle(layoutBox.GetX(), layoutBox.GetY(), layoutBox.GetWidth(), layoutBox
.GetHeight());
currentRenderer.SetProperty(Property.OVERFLOW_X, overflowX);
currentRenderer.SetProperty(Property.OVERFLOW_Y, overflowY);
LineLayoutContext lineLayoutContext = new LineLayoutContext(new LayoutArea(pageNumber, childLayoutBox), null
, floatRendererAreas, wasHeightClipped || wasParentsHeightClipped).SetTextIndent(lineIndent).SetFloatOverflowedToNextPageWithNothing
(floatOverflowedToNextPageWithNothing);
LineLayoutResult result = (LineLayoutResult)((LineRenderer)currentRenderer.SetParent(this)).Layout(lineLayoutContext
);
if (result.GetStatus() == LayoutResult.NOTHING)
{
float?lineShiftUnderFloats = FloatingHelper.CalculateLineShiftUnderFloats(floatRendererAreas, layoutBox);
if (lineShiftUnderFloats != null)
{
layoutBox.DecreaseHeight((float)lineShiftUnderFloats);
firstLineInBox = true;
continue;
}
bool allRemainingKidsAreFloats = !currentRenderer.childRenderers.IsEmpty();
foreach (IRenderer renderer in currentRenderer.childRenderers)
{
allRemainingKidsAreFloats = allRemainingKidsAreFloats && FloatingHelper.IsRendererFloating(renderer);
}
if (allRemainingKidsAreFloats)
{
onlyOverflowedFloatsLeft = true;
}
}
floatOverflowedToNextPageWithNothing = lineLayoutContext.IsFloatOverflowedToNextPageWithNothing();
if (result.GetFloatsOverflowedToNextPage() != null)
{
inlineFloatsOverflowedToNextPage.AddAll(result.GetFloatsOverflowedToNextPage());
}
float minChildWidth = 0;
float maxChildWidth = 0;
if (result is MinMaxWidthLayoutResult)
{
minChildWidth = ((MinMaxWidthLayoutResult)result).GetMinMaxWidth().GetMinWidth();
maxChildWidth = ((MinMaxWidthLayoutResult)result).GetMinMaxWidth().GetMaxWidth();
}
widthHandler.UpdateMinChildWidth(minChildWidth);
widthHandler.UpdateMaxChildWidth(maxChildWidth);
LineRenderer processedRenderer = null;
if (result.GetStatus() == LayoutResult.FULL)
{
processedRenderer = currentRenderer;
}
else
{
if (result.GetStatus() == LayoutResult.PARTIAL)
{
processedRenderer = (LineRenderer)result.GetSplitRenderer();
}
}
if (onlyOverflowedFloatsLeft)
{
// This is done to trick ParagraphRenderer to break rendering and to overflow to the next page.
// The `onlyOverflowedFloatsLeft` is set to true only when no other content is left except
// overflowed floating elements.
processedRenderer = null;
}
TextAlignment?textAlignment = (TextAlignment?)this.GetProperty <TextAlignment?>(Property.TEXT_ALIGNMENT, TextAlignment
.LEFT);
ApplyTextAlignment(textAlignment, result, processedRenderer, layoutBox, floatRendererAreas, onlyOverflowedFloatsLeft
, lineIndent);
Leading leading = RenderingMode.HTML_MODE.Equals(this.GetProperty <RenderingMode?>(Property.RENDERING_MODE)
) ? null : this.GetProperty <Leading>(Property.LEADING);
// could be false if e.g. line contains only floats
bool lineHasContent = processedRenderer != null && processedRenderer.GetOccupiedArea().GetBBox().GetHeight
() > 0;
bool isFit = processedRenderer != null;
float deltaY = 0;
if (isFit && !RenderingMode.HTML_MODE.Equals(this.GetProperty <RenderingMode?>(Property.RENDERING_MODE)))
{
if (lineHasContent)
{
float indentFromLastLine = previousDescent - lastLineBottomLeadingIndent - (leading != null ? processedRenderer
.GetTopLeadingIndent(leading) : 0) - processedRenderer.GetMaxAscent();
// TODO this is a workaround. To be refactored
if (processedRenderer != null && processedRenderer.ContainsImage())
{
indentFromLastLine += previousDescent;
}
deltaY = lastYLine + indentFromLastLine - processedRenderer.GetYLine();
lastLineBottomLeadingIndent = leading != null?processedRenderer.GetBottomLeadingIndent(leading) : 0;
// TODO this is a workaround. To be refactored
if (lastLineBottomLeadingIndent < 0 && processedRenderer.ContainsImage())
{
lastLineBottomLeadingIndent = 0;
}
}
// for the first and last line in a paragraph, leading is smaller
if (firstLineInBox)
{
deltaY = processedRenderer != null && leading != null ? -processedRenderer.GetTopLeadingIndent(leading) :
0;
}
isFit = leading == null || processedRenderer.GetOccupiedArea().GetBBox().GetY() + deltaY >= layoutBox.GetY
();
}
if (!isFit && (null == processedRenderer || IsOverflowFit(overflowY)))
{
if (currentAreaPos + 1 < areas.Count)
{
layoutBox = areas[++currentAreaPos].Clone();
lastYLine = layoutBox.GetY() + layoutBox.GetHeight();
firstLineInBox = true;
}
else
{
bool keepTogether = IsKeepTogether();
if (keepTogether)
{
floatRendererAreas.RetainAll(nonChildFloatingRendererAreas);
return(new MinMaxWidthLayoutResult(LayoutResult.NOTHING, null, null, this, null == result.GetCauseOfNothing
() ? this : result.GetCauseOfNothing()));
}
else
{
if (marginsCollapsingEnabled)
{
if (anythingPlaced && notAllKidsAreFloats)
{
marginsCollapseHandler.EndChildMarginsHandling(layoutBox);
}
}
// On page split, if not only overflowed floats left, content will be drawn on next page, i.e. under all floats on this page
bool includeFloatsInOccupiedAreaOnSplit = !onlyOverflowedFloatsLeft || includeFloatsInOccupiedArea;
if (includeFloatsInOccupiedAreaOnSplit)
{
FloatingHelper.IncludeChildFloatsInOccupiedArea(floatRendererAreas, this, nonChildFloatingRendererAreas);
FixOccupiedAreaIfOverflowedX(overflowX, layoutBox);
}
if (marginsCollapsingEnabled)
{
marginsCollapseHandler.EndMarginsCollapse(layoutBox);
}
bool minHeightOverflowed = false;
if (!includeFloatsInOccupiedAreaOnSplit)
{
AbstractRenderer minHeightOverflow = ApplyMinHeight(overflowY, layoutBox);
minHeightOverflowed = minHeightOverflow != null;
ApplyVerticalAlignment();
}
iText.Layout.Renderer.ParagraphRenderer[] split = Split();
split[0].lines = lines;
foreach (LineRenderer line in lines)
{
split[0].childRenderers.AddAll(line.GetChildRenderers());
}
split[1].childRenderers.AddAll(inlineFloatsOverflowedToNextPage);
if (processedRenderer != null)
{
split[1].childRenderers.AddAll(processedRenderer.GetChildRenderers());
}
if (result.GetOverflowRenderer() != null)
{
split[1].childRenderers.AddAll(result.GetOverflowRenderer().GetChildRenderers());
}
if (onlyOverflowedFloatsLeft && !includeFloatsInOccupiedArea && !minHeightOverflowed)
{
FloatingHelper.RemoveParentArtifactsOnPageSplitIfOnlyFloatsOverflow(split[1]);
}
float usedHeight = occupiedArea.GetBBox().GetHeight();
if (!includeFloatsInOccupiedAreaOnSplit)
{
Rectangle commonRectangle = Rectangle.GetCommonRectangle(layoutBox, occupiedArea.GetBBox());
usedHeight = commonRectangle.GetHeight();
}
UpdateHeightsOnSplit(usedHeight, wasHeightClipped, this, split[1], includeFloatsInOccupiedAreaOnSplit);
CorrectFixedLayout(layoutBox);
ApplyPaddings(occupiedArea.GetBBox(), paddings, true);
ApplyBorderBox(occupiedArea.GetBBox(), borders, true);
ApplyMargins(occupiedArea.GetBBox(), true);
ApplyAbsolutePositionIfNeeded(layoutContext);
LayoutArea editedArea = FloatingHelper.AdjustResultOccupiedAreaForFloatAndClear(this, layoutContext.GetFloatRendererAreas
(), layoutContext.GetArea().GetBBox(), clearHeightCorrection, marginsCollapsingEnabled);
if (wasHeightClipped)
{
return(new MinMaxWidthLayoutResult(LayoutResult.FULL, editedArea, split[0], null).SetMinMaxWidth(minMaxWidth
));
}
else
{
if (anythingPlaced)
{
return(new MinMaxWidthLayoutResult(LayoutResult.PARTIAL, editedArea, split[0], split[1]).SetMinMaxWidth(minMaxWidth
));
}
else
{
if (true.Equals(GetPropertyAsBoolean(Property.FORCED_PLACEMENT)))
{
occupiedArea.SetBBox(Rectangle.GetCommonRectangle(occupiedArea.GetBBox(), currentRenderer.GetOccupiedArea(
).GetBBox()));
FixOccupiedAreaIfOverflowedX(overflowX, layoutBox);
parent.SetProperty(Property.FULL, true);
lines.Add(currentRenderer);
// Force placement of children we have and do not force placement of the others
if (LayoutResult.PARTIAL == result.GetStatus())
{
IRenderer childNotRendered = result.GetCauseOfNothing();
int firstNotRendered = currentRenderer.childRenderers.IndexOf(childNotRendered);
currentRenderer.childRenderers.RetainAll(currentRenderer.childRenderers.SubList(0, firstNotRendered));
split[1].childRenderers.RemoveAll(split[1].childRenderers.SubList(0, firstNotRendered));
return(new MinMaxWidthLayoutResult(LayoutResult.PARTIAL, editedArea, this, split[1], null).SetMinMaxWidth(
minMaxWidth));
}
else
{
return(new MinMaxWidthLayoutResult(LayoutResult.FULL, editedArea, null, null, this).SetMinMaxWidth(minMaxWidth
));
}
}
else
{
floatRendererAreas.RetainAll(nonChildFloatingRendererAreas);
return(new MinMaxWidthLayoutResult(LayoutResult.NOTHING, null, null, this, null == result.GetCauseOfNothing
() ? this : result.GetCauseOfNothing()));
}
}
}
}
}
}
else
{
if (leading != null)
{
processedRenderer.ApplyLeading(deltaY);
if (lineHasContent)
{
lastYLine = processedRenderer.GetYLine();
}
}
if (lineHasContent)
{
occupiedArea.SetBBox(Rectangle.GetCommonRectangle(occupiedArea.GetBBox(), processedRenderer.GetOccupiedArea
().GetBBox()));
FixOccupiedAreaIfOverflowedX(overflowX, layoutBox);
}
firstLineInBox = false;
layoutBox.SetHeight(processedRenderer.GetOccupiedArea().GetBBox().GetY() - layoutBox.GetY());
lines.Add(processedRenderer);
anythingPlaced = true;
currentRenderer = (LineRenderer)result.GetOverflowRenderer();
previousDescent = processedRenderer.GetMaxDescent();
if (!inlineFloatsOverflowedToNextPage.IsEmpty() && result.GetOverflowRenderer() == null)
{
onlyOverflowedFloatsLeft = true;
// dummy renderer to trick paragraph renderer to continue kids loop
currentRenderer = new LineRenderer();
}
}
}
if (!RenderingMode.HTML_MODE.Equals(this.GetProperty <RenderingMode?>(Property.RENDERING_MODE)))
{
float moveDown = lastLineBottomLeadingIndent;
if (IsOverflowFit(overflowY) && moveDown > occupiedArea.GetBBox().GetY() - layoutBox.GetY())
{
moveDown = occupiedArea.GetBBox().GetY() - layoutBox.GetY();
}
occupiedArea.GetBBox().MoveDown(moveDown);
occupiedArea.GetBBox().SetHeight(occupiedArea.GetBBox().GetHeight() + moveDown);
}
if (marginsCollapsingEnabled)
{
if (childRenderers.Count > 0 && notAllKidsAreFloats)
{
marginsCollapseHandler.EndChildMarginsHandling(layoutBox);
}
}
if (includeFloatsInOccupiedArea)
{
FloatingHelper.IncludeChildFloatsInOccupiedArea(floatRendererAreas, this, nonChildFloatingRendererAreas);
FixOccupiedAreaIfOverflowedX(overflowX, layoutBox);
}
if (wasHeightClipped)
{
FixOccupiedAreaIfOverflowedY(overflowY, layoutBox);
}
if (marginsCollapsingEnabled)
{
marginsCollapseHandler.EndMarginsCollapse(layoutBox);
}
AbstractRenderer overflowRenderer = ApplyMinHeight(overflowY, layoutBox);
if (overflowRenderer != null && IsKeepTogether())
{
floatRendererAreas.RetainAll(nonChildFloatingRendererAreas);
return(new LayoutResult(LayoutResult.NOTHING, null, null, this, this));
}
CorrectFixedLayout(layoutBox);
ApplyPaddings(occupiedArea.GetBBox(), paddings, true);
ApplyBorderBox(occupiedArea.GetBBox(), borders, true);
ApplyMargins(occupiedArea.GetBBox(), true);
ApplyAbsolutePositionIfNeeded(layoutContext);
if (rotation != null)
{
ApplyRotationLayout(layoutContext.GetArea().GetBBox().Clone());
if (IsNotFittingLayoutArea(layoutContext.GetArea()))
{
if (IsNotFittingWidth(layoutContext.GetArea()) && !IsNotFittingHeight(layoutContext.GetArea()))
{
LogManager.GetLogger(GetType()).Warn(MessageFormatUtil.Format(iText.IO.LogMessageConstant.ELEMENT_DOES_NOT_FIT_AREA
, "It fits by height so it will be forced placed"));
}
else
{
if (!true.Equals(GetPropertyAsBoolean(Property.FORCED_PLACEMENT)))
{
floatRendererAreas.RetainAll(nonChildFloatingRendererAreas);
return(new MinMaxWidthLayoutResult(LayoutResult.NOTHING, null, null, this, this));
}
}
}
}
ApplyVerticalAlignment();
FloatingHelper.RemoveFloatsAboveRendererBottom(floatRendererAreas, this);
LayoutArea editedArea_1 = FloatingHelper.AdjustResultOccupiedAreaForFloatAndClear(this, layoutContext.GetFloatRendererAreas
(), layoutContext.GetArea().GetBBox(), clearHeightCorrection, marginsCollapsingEnabled);
if (null == overflowRenderer)
{
return(new MinMaxWidthLayoutResult(LayoutResult.FULL, editedArea_1, null, null, null).SetMinMaxWidth(minMaxWidth
));
}
else
{
return(new MinMaxWidthLayoutResult(LayoutResult.PARTIAL, editedArea_1, this, overflowRenderer, null).SetMinMaxWidth
(minMaxWidth));
}
}