/// <summary>
/// Correct DOM tree if there is block boxes that are inside inline blocks.<br/>
/// Need to rearrange the tree so block box will be only the child of other block box.
/// </summary>
/// <param name="box">the current box to correct its sub-tree</param>
private static void CorrectBlockInsideInline(CssBox box)
{
try
{
if (DomUtils.ContainsInlinesOnly(box) && !ContainsInlinesOnlyDeep(box))
{
var tempRightBox = CorrectBlockInsideInlineImp(box);
while (tempRightBox != null)
{
// loop on the created temp right box for the fixed box until no more need (optimization remove recursion)
CssBox newTempRightBox = null;
if (DomUtils.ContainsInlinesOnly(tempRightBox) && !ContainsInlinesOnlyDeep(tempRightBox))
{
newTempRightBox = CorrectBlockInsideInlineImp(tempRightBox);
}
tempRightBox.ParentBox.SetAllBoxes(tempRightBox);
tempRightBox.ParentBox = null;
tempRightBox = newTempRightBox;
}
}
if (!DomUtils.ContainsInlinesOnly(box))
{
foreach (var childBox in box.Boxes)
{
CorrectBlockInsideInline(childBox);
}
}
}
catch (Exception ex)
{
box.HtmlContainer.ReportError(HtmlRenderErrorType.HtmlParsing, "Failed in block inside inline box correction", ex);
}
}
/// <summary>
/// Makes block boxes be among only block boxes and all inline boxes have block parent box.<br/>
/// Inline boxes should live in a pool of Inline boxes only so they will define a single block.<br/>
/// At the end of this process a block box will have only block siblings and inline box will have
/// only inline siblings.
/// </summary>
/// <param name="box">the current box to correct its sub-tree</param>
private static void CorrectInlineBoxesParent(CssBox box)
{
if (ContainsVariantBoxes(box))
{
for (int i = 0; i < box.Boxes.Count; i++)
{
if (box.Boxes[i].IsInline)
{
var newbox = CssBox.CreateBlock(box, null, box.Boxes[i++]);
while (i < box.Boxes.Count && box.Boxes[i].IsInline)
{
box.Boxes[i].ParentBox = newbox;
}
}
}
}
if (!DomUtils.ContainsInlinesOnly(box))
{
foreach (var childBox in box.Boxes)
{
CorrectInlineBoxesParent(childBox);
}
}
}
/// <summary>
/// Makes block boxes be among only block boxes and all inline boxes have block parent box.<br/>
/// Inline boxes should live in a pool of Inline boxes only so they will define a single block.<br/>
/// At the end of this process a block box will have only block siblings and inline box will have
/// only inline siblings.
///
/// </summary>
/// <param name="box">the current box to correct its sub-tree</param>
private static void CorrectInlineBoxesParent(CssBox box)
{
if (ContainsVariantBoxes(box)) //if this box contains inline and block elements
{
for (int i = 0; i < box.Boxes.Count; i++)
{
//if the child isInline box take the child and add it to newbox
// then set newbox as the parentbox
if (box.Boxes[i].IsInline)
{
//creates new box in parent(box) at position it was in currently in
var newbox = CssBox.CreateBlock(box, null, box.Boxes[i++]);
while (i < box.Boxes.Count && box.Boxes[i].IsInline)
{
box.Boxes[i].ParentBox = newbox;
}
}
}
}
if (!DomUtils.ContainsInlinesOnly(box))
{
foreach (var childBox in box.Boxes)
{
CorrectInlineBoxesParent(childBox);
}
}
}
/// <summary>
/// Gets if this box has only inline siblings (including itself)
/// </summary>
/// <returns></returns>
internal bool HasJustInlineSiblings()
{
if (ParentBox == null)
{
return(false);
}
return(DomUtils.ContainsInlinesOnly(ParentBox));
}
/// <summary>
/// Correct DOM tree if there is block boxes that are inside inline blocks.<br/>
/// Need to rearange the tree so block box will be only the child of other block box.
/// </summary>
/// <param name="box">the current box to correct its sub-tree</param>
private static void CorrectBlockInsideInline(CssBox box)
{
if (DomUtils.ContainsInlinesOnly(box) && !ContainsInlinesOnlyDeep(box))
{
CorrectBlockInsideInlineImp(box);
}
if (!DomUtils.ContainsInlinesOnly(box))
{
foreach (var childBox in box.Boxes)
{
CorrectBlockInsideInline(childBox);
}
}
}
/// <summary>
/// Correct DOM tree if there is block boxes that are inside inline blocks.<br/>
/// Need to rearrange the tree so block box will be only the child of other block box.
/// </summary>
/// <param name="box">the current box to correct its sub-tree</param>
private static void CorrectBlockInsideInline(CssBox box)
{
try
{
if (DomUtils.ContainsInlinesOnly(box) && !ContainsInlinesOnlyDeep(box))
{
CorrectBlockInsideInlineImp(box);
}
if (!DomUtils.ContainsInlinesOnly(box))
{
foreach (var childBox in box.Boxes)
{
CorrectBlockInsideInline(childBox);
}
}
}
catch (Exception ex)
{
box.HtmlContainer.ReportError(HtmlRenderErrorType.HtmlParsing, "Failed in block inside inline box correction", ex);
}
}
/// <summary>
/// Measures the bounds of box and children, recursively.<br/>
/// Performs layout of the DOM structure creating lines by set bounds restrictions.
/// </summary>
/// <param name="g">Device context to use</param>
private void MeasureBoundsImp(Graphics g)
{
if (Display == CssConstants.None)
{
return;
}
RectanglesReset();
MeasureWordsSize(g);
if (Display == CssConstants.Block ||
Display == CssConstants.ListItem ||
Display == CssConstants.Table ||
Display == CssConstants.InlineTable ||
Display == CssConstants.TableCell ||
Display == CssConstants.None)
{
if (Display != CssConstants.TableCell)
{
var prevSibling = DomUtils.GetPreviousSibling(this);
float left = ContainingBlock.Location.X + ContainingBlock.ActualPaddingLeft + ActualMarginLeft + ContainingBlock.ActualBorderLeftWidth;
float top = (prevSibling == null && ParentBox != null ? ParentBox.ClientTop : ParentBox == null ? Location.Y : 0) + MarginTopCollapse(prevSibling) + (prevSibling != null ? prevSibling.ActualBottom + prevSibling.ActualBorderBottomWidth : 0);
Location = new PointF(left, top);
ActualBottom = top;
}
// Because their width and height are set by CssTable
if (Display != CssConstants.TableCell && Display != CssConstants.Table)
{
//width at 100% (or auto)
float minwidth = GetMinimumWidth();
float width = ContainingBlock.Size.Width
- ContainingBlock.ActualPaddingLeft - ContainingBlock.ActualPaddingRight
- ContainingBlock.ActualBorderLeftWidth - ContainingBlock.ActualBorderRightWidth
- ActualMarginLeft - ActualMarginRight - ActualBorderLeftWidth - ActualBorderRightWidth;
//Check width if not auto
if (Width != CssConstants.Auto && !string.IsNullOrEmpty(Width))
{
width = CssValueParser.ParseLength(Width, width, this);
}
if (width < minwidth || width >= 9999)
{
width = minwidth;
}
Size = new SizeF(width, Size.Height);
}
//If we're talking about a table here..
if (Display == CssConstants.Table || Display == CssConstants.InlineTable)
{
new CssTable(this, g);
}
else
{
//If there's just inlines, create LineBoxes
if (DomUtils.ContainsInlinesOnly(this))
{
ActualBottom = Location.Y;
CssLayoutEngine.CreateLineBoxes(g, this); //This will automatically set the bottom of this block
}
else if (_boxes.Count > 0)
{
foreach (var childBox in Boxes)
{
childBox.MeasureBoundsImp(g);
}
ActualBottom = MarginBottomCollapse();
}
}
}
if (HtmlContainer != null)
{
HtmlContainer.ActualSize = new SizeF(Math.Max(HtmlContainer.ActualSize.Width, Size.Width < 9999 ? Size.Width : 0), Math.Max(HtmlContainer.ActualSize.Height, Size.Height));
}
}