public void SetLayout(LayoutResult layout)
{
}
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);
}
}
}
protected internal abstract LayoutArea UpdateCurrentArea(LayoutResult overflowResult);
/* (non-Javadoc)
* @see com.itextpdf.layout.renderer.DocumentRenderer#updateCurrentArea(com.itextpdf.layout.layout.LayoutResult)
*/
protected override LayoutArea UpdateCurrentArea(LayoutResult overflowResult)
{
AreaBreak areaBreak = overflowResult != null?overflowResult.GetAreaBreak() : null;
if (areaBreak is HtmlPageBreak)
{
HtmlPageBreakType htmlPageBreakType = ((HtmlPageBreak)areaBreak).GetBreakType();
if (shouldTrimFirstBlankPagesCausedByBreakBeforeFirstElement && currentArea != null && overflowResult.GetStatus
() == LayoutResult.NOTHING && currentArea.IsEmptyArea() && currentArea.GetPageNumber() == 1)
{
// Remove blank page that was added just to have area for elements to layout on.
// Now we will add a page with dimensions and all the stuff that is requested by page-break-before
document.GetPdfDocument().RemovePage(1);
currentPageNumber = 0;
overflowResult = null;
currentArea = null;
shouldTrimFirstBlankPagesCausedByBreakBeforeFirstElement = false;
if (HtmlPageBreakType.LEFT.Equals(htmlPageBreakType) && !IsPageLeft(1) || HtmlPageBreakType.RIGHT.Equals(htmlPageBreakType
) && !IsPageRight(1))
{
evenPagesAreLeft = !evenPagesAreLeft;
}
}
// hack to change the "evenness" of the first page without adding an unnecessary blank page
anythingAddedToCurrentArea = anythingAddedToCurrentArea || overflowResult != null && overflowResult.GetStatus
() == LayoutResult.PARTIAL;
if (HtmlPageBreakType.ALWAYS.Equals(htmlPageBreakType))
{
LayoutArea nextArea = currentArea;
if (anythingAddedToCurrentArea || currentArea == null)
{
nextArea = base.UpdateCurrentArea(overflowResult);
}
anythingAddedToCurrentArea = false;
return(nextArea);
}
else
{
if (HtmlPageBreakType.LEFT.Equals(htmlPageBreakType))
{
LayoutArea nextArea = currentArea;
if (anythingAddedToCurrentArea || currentArea == null || !IsPageLeft(currentPageNumber))
{
do
{
nextArea = base.UpdateCurrentArea(overflowResult);
}while (!IsPageLeft(currentPageNumber));
}
anythingAddedToCurrentArea = false;
return(nextArea);
}
else
{
if (HtmlPageBreakType.RIGHT.Equals(htmlPageBreakType))
{
LayoutArea nextArea = currentArea;
if (anythingAddedToCurrentArea || currentArea == null || !IsPageRight(currentPageNumber))
{
do
{
nextArea = base.UpdateCurrentArea(overflowResult);
}while (!IsPageRight(currentPageNumber));
}
anythingAddedToCurrentArea = false;
return(nextArea);
}
}
}
}
anythingAddedToCurrentArea = false;
return(base.UpdateCurrentArea(overflowResult));
}
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;
}
}
public void SetLayout(LayoutResult layout)
{
// NOP
}
// 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);
}
/* (non-Javadoc)
* @see com.itextpdf.layout.renderer.BlockRenderer#layout(com.itextpdf.layout.layout.LayoutContext)
*/
public override LayoutResult Layout(LayoutContext layoutContext)
{
childRenderers.Clear();
flatRenderer = null;
float parentWidth = layoutContext.GetArea().GetBBox().GetWidth();
float parentHeight = layoutContext.GetArea().GetBBox().GetHeight();
IRenderer renderer = CreateFlatRenderer();
renderer.SetProperty(Property.OVERFLOW_X, OverflowPropertyValue.VISIBLE);
renderer.SetProperty(Property.OVERFLOW_Y, OverflowPropertyValue.VISIBLE);
AddChild(renderer);
Rectangle bBox = layoutContext.GetArea().GetBBox().Clone().MoveDown(INF - parentHeight).SetHeight(INF);
layoutContext.GetArea().SetBBox(bBox);
LayoutResult result = base.Layout(layoutContext);
if (!true.Equals(GetPropertyAsBoolean(Property.FORCED_PLACEMENT)) && (result.GetStatus() != LayoutResult.FULL
))
{
//@TODO investigate this tricky code a little more.
FloatPropertyValue?floatPropertyValue = this.GetProperty <FloatPropertyValue?>(Property.FLOAT);
if (floatPropertyValue == null || floatPropertyValue == FloatPropertyValue.NONE)
{
SetProperty(Property.FORCED_PLACEMENT, true);
}
else
{
flatRenderer = childRenderers[0];
ProcessLangAttribute();
childRenderers.Clear();
childRenderers.Add(flatRenderer);
AdjustFieldLayout(layoutContext);
if (IsLayoutBasedOnFlatRenderer())
{
Rectangle fBox = flatRenderer.GetOccupiedArea().GetBBox();
occupiedArea.GetBBox().SetX(fBox.GetX()).SetY(fBox.GetY()).SetWidth(fBox.GetWidth()).SetHeight(fBox.GetHeight
());
ApplyPaddings(occupiedArea.GetBBox(), true);
ApplyBorderBox(occupiedArea.GetBBox(), true);
ApplyMargins(occupiedArea.GetBBox(), true);
}
}
return(new MinMaxWidthLayoutResult(LayoutResult.NOTHING, occupiedArea, null, this, this).SetMinMaxWidth(new
MinMaxWidth()));
}
if (!childRenderers.IsEmpty())
{
flatRenderer = childRenderers[0];
ProcessLangAttribute();
childRenderers.Clear();
childRenderers.Add(flatRenderer);
AdjustFieldLayout(layoutContext);
if (IsLayoutBasedOnFlatRenderer())
{
Rectangle fBox = flatRenderer.GetOccupiedArea().GetBBox();
occupiedArea.GetBBox().SetX(fBox.GetX()).SetY(fBox.GetY()).SetWidth(fBox.GetWidth()).SetHeight(fBox.GetHeight
());
ApplyPaddings(occupiedArea.GetBBox(), true);
ApplyBorderBox(occupiedArea.GetBBox(), true);
ApplyMargins(occupiedArea.GetBBox(), true);
}
}
else
{
LogManager.GetLogger(GetType()).Error(iText.Html2pdf.LogMessageConstant.ERROR_WHILE_LAYOUT_OF_FORM_FIELD);
occupiedArea.GetBBox().SetWidth(0).SetHeight(0);
}
if (!true.Equals(GetPropertyAsBoolean(Property.FORCED_PLACEMENT)) && !IsRendererFit(parentWidth, parentHeight
))
{
occupiedArea.GetBBox().SetWidth(0).SetHeight(0);
return(new MinMaxWidthLayoutResult(LayoutResult.NOTHING, occupiedArea, null, this, this).SetMinMaxWidth(new
MinMaxWidth()));
}
if (result.GetStatus() != LayoutResult.FULL || !IsRendererFit(parentWidth, parentHeight))
{
LogManager.GetLogger(GetType()).Warn(iText.Html2pdf.LogMessageConstant.INPUT_FIELD_DOES_NOT_FIT);
}
return(new MinMaxWidthLayoutResult(LayoutResult.FULL, occupiedArea, this, null).SetMinMaxWidth(new MinMaxWidth
(occupiedArea.GetBBox().GetWidth(), occupiedArea.GetBBox().GetWidth(), 0)));
}
public override LayoutResult Layout(LayoutContext layoutContext)
{
LayoutResult result = base.Layout(layoutContext);
return(result);
}
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 LayoutResult InitializeListSymbols(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++)
{
childRenderers[i].SetParent(this);
listItemNum = (childRenderers[i].GetProperty <int?>(Property.LIST_SYMBOL_ORDINAL_VALUE) != null) ? (int)childRenderers
[i].GetProperty <int?>(Property.LIST_SYMBOL_ORDINAL_VALUE) : listItemNum;
IRenderer currentSymbolRenderer = MakeListSymbolRenderer(listItemNum, childRenderers[i]);
if (BaseDirection.RIGHT_TO_LEFT.Equals(this.GetProperty <BaseDirection?>(Property.BASE_DIRECTION)))
{
currentSymbolRenderer.SetProperty(Property.BASE_DIRECTION, BaseDirection.RIGHT_TO_LEFT);
}
LayoutResult listSymbolLayoutResult = null;
if (currentSymbolRenderer != null)
{
++listItemNum;
currentSymbolRenderer.SetParent(childRenderers[i]);
listSymbolLayoutResult = currentSymbolRenderer.Layout(layoutContext);
currentSymbolRenderer.SetParent(null);
}
childRenderers[i].SetParent(null);
bool isForcedPlacement = true.Equals(GetPropertyAsBoolean(Property.FORCED_PLACEMENT));
bool listSymbolNotFit = listSymbolLayoutResult != null && listSymbolLayoutResult.GetStatus() != LayoutResult
.FULL;
// TODO DEVSIX-1001: partially not fitting list symbol not shown at all, however this might be improved
if (listSymbolNotFit && isForcedPlacement)
{
currentSymbolRenderer = null;
}
symbolRenderers.Add(currentSymbolRenderer);
if (listSymbolNotFit && !isForcedPlacement)
{
return(new LayoutResult(LayoutResult.NOTHING, null, null, this, listSymbolLayoutResult.GetCauseOfNothing()
));
}
}
float maxSymbolWidth = 0;
for (int i = 0; i < childRenderers.Count; i++)
{
IRenderer symbolRenderer = symbolRenderers[i];
if (symbolRenderer != null)
{
IRenderer listItemRenderer = childRenderers[i];
if ((ListSymbolPosition)GetListItemOrListProperty(listItemRenderer, this, Property.LIST_SYMBOL_POSITION) !=
ListSymbolPosition.INSIDE)
{
maxSymbolWidth = Math.Max(maxSymbolWidth, symbolRenderer.GetOccupiedArea().GetBBox().GetWidth());
}
}
}
float?symbolIndent = this.GetPropertyAsFloat(Property.LIST_SYMBOL_INDENT);
listItemNum = 0;
foreach (IRenderer childRenderer in childRenderers)
{
childRenderer.SetParent(this);
childRenderer.DeleteOwnProperty(Property.MARGIN_LEFT);
UnitValue marginLeftUV = childRenderer.GetProperty(Property.MARGIN_LEFT, UnitValue.CreatePointValue(0f));
if (!marginLeftUV.IsPointValue())
{
ILog logger = LogManager.GetLogger(typeof(iText.Layout.Renderer.ListRenderer));
logger.Error(MessageFormatUtil.Format(iText.IO.LogMessageConstant.PROPERTY_IN_PERCENTS_NOT_SUPPORTED, Property
.MARGIN_LEFT));
}
float calculatedMargin = marginLeftUV.GetValue();
if ((ListSymbolPosition)GetListItemOrListProperty(childRenderer, this, Property.LIST_SYMBOL_POSITION) == ListSymbolPosition
.DEFAULT)
{
calculatedMargin += maxSymbolWidth + (float)(symbolIndent != null ? symbolIndent : 0f);
}
childRenderer.SetProperty(Property.MARGIN_LEFT, UnitValue.CreatePointValue(calculatedMargin));
IRenderer symbolRenderer = symbolRenderers[listItemNum++];
((ListItemRenderer)childRenderer).AddSymbolRenderer(symbolRenderer, maxSymbolWidth);
if (symbolRenderer != null)
{
LayoutTaggingHelper taggingHelper = this.GetProperty <LayoutTaggingHelper>(Property.TAGGING_HELPER);
if (taggingHelper != null)
{
if (symbolRenderer is LineRenderer)
{
taggingHelper.SetRoleHint(symbolRenderer.GetChildRenderers()[1], StandardRoles.LBL);
}
else
{
taggingHelper.SetRoleHint(symbolRenderer, StandardRoles.LBL);
}
}
}
}
}
return(null);
}
private void DrawElementInfo()
{
List <ElementAttribute> attributes = selectedElement.GetAttributes();
if (attributes != null)
{
DrawAttributes(attributes);
}
GUI.enabled = true;
LayoutResult layoutResult = selectedElement.layoutResult;
float labelWidth = EditorGUIUtility.labelWidth;
EditorGUIUtility.labelWidth = 100;
Rect contentRect = layoutResult.ContentRect;
DrawLabel("Enabled", selectedElement.isEnabled.ToString());
if (selectedElement.isEnabled)
{
DrawLabel("Culled", selectedElement.layoutResult.isCulled.ToString());
DrawLabel("View", selectedElement.View.name);
DrawLabel("Viewport", $"X: {selectedElement.View.Viewport.x}, Y: {selectedElement.View.Viewport.y}, W: {selectedElement.View.Viewport.width}, H: {selectedElement.View.Viewport.height}");
DrawVector2Value("Local Position", layoutResult.localPosition);
DrawVector2Value("Screen Position", layoutResult.screenPosition);
DrawVector2Value("Scale", layoutResult.scale);
DrawSizeValue("Allocated Size", layoutResult.allocatedSize);
DrawSizeValue("Actual Size", layoutResult.actualSize);
DrawLabel("Rotation", layoutResult.rotation.ToString());
DrawLabel("Content Rect", $"X: {contentRect.x}, Y: {contentRect.y}, W: {contentRect.width}, H: {contentRect.height}");
DrawLabel("Render Layer", selectedElement.style.RenderLayer.ToString());
GUILayout.Space(16);
DrawEnumWithValue <LayoutType>(selectedElement.style.GetComputedStyleProperty(StylePropertyId.LayoutType), false);
DrawMeasurement(selectedElement.style.GetComputedStyleProperty(StylePropertyId.PreferredWidth), false);
DrawMeasurement(selectedElement.style.GetComputedStyleProperty(StylePropertyId.PreferredHeight), false);
DrawLabel("Block Width Provider:", selectedElement.layoutBox.GetBlockWidthProvider() + " size: " + selectedElement.layoutBox.ComputeBlockWidth(1));
DrawLabel("Block Height Provider:", selectedElement.layoutBox.GetBlockHeightProvider() + " size: " + selectedElement.layoutBox.ComputeBlockHeight(1));
GUILayout.Space(16);
OffsetRect margin = selectedElement.layoutResult.margin;
DrawLabel("Margin Top", margin.top.ToString());
DrawLabel("Margin Right", margin.right.ToString());
DrawLabel("Margin Bottom", margin.bottom.ToString());
DrawLabel("Margin Left", margin.left.ToString());
GUILayout.Space(16);
OffsetRect border = selectedElement.layoutResult.border;
DrawLabel("Border Top", border.top.ToString());
DrawLabel("Border Right", border.right.ToString());
DrawLabel("Border Bottom", border.bottom.ToString());
DrawLabel("Border Left", border.left.ToString());
GUILayout.Space(16);
OffsetRect padding = selectedElement.layoutResult.padding;
DrawLabel("Padding Top", padding.top.ToString());
DrawLabel("Padding Right", padding.right.ToString());
DrawLabel("Padding Bottom", padding.bottom.ToString());
DrawLabel("Padding Left", padding.left.ToString());
}
EditorGUIUtility.labelWidth = labelWidth;
}
