protected virtual void CreateBlockRegions(PDFLayoutBlock containerBlock, PDFPositionOptions position, PDFColumnOptions columnOptions)
{
PDFRect unused = containerBlock.CurrentRegion.UnusedBounds;
PDFUnit yoffset = containerBlock.CurrentRegion.Height;
PDFRect total = new PDFRect(PDFUnit.Zero, yoffset, unused.Width, unused.Height);
if (position.Width.HasValue)
{
total.Width = position.Width.Value;
}
//ADDED for min/max sizes. Include the margins as we are making this the available width.
else if (position.MaximumWidth.HasValue)
{
total.Width = position.MaximumWidth.Value + position.Margins.Left + position.Margins.Right;
}
if (position.Height.HasValue)
{
total.Height = position.Height.Value;
}
//ADDED for min/max sizes. Include the margins as we are making this the available height.
else if (position.MaximumHeight.HasValue)
{
total.Height = position.MaximumHeight.Value + position.Margins.Top + position.Margins.Bottom;
}
CurrentBlock.InitRegions(total, position, columnOptions, this.Context);
}
protected override void DoLayoutComponent()
{
if (this.Context.ShouldLogVerbose)
{
this.Context.TraceLog.Begin(TraceLevel.Verbose, "Panel Layout Engine", "Beginning layout of component '" + this.Component + "' as a viewport component");
}
PDFPositionOptions pos = this.FullStyle.CreatePostionOptions();
PDFColumnOptions columns = this.FullStyle.CreateColumnOptions();
if (pos.PositionMode != Drawing.PositionMode.Inline)
{
this.DoLayoutBlockComponent(pos, columns);
}
else
{
PDFLayoutInlineBegin begin = CreateAndAddInlineBegin(pos);
this.DoLayoutChildren();
this.CreateAndAddInlineEnd(pos, begin);
}
if (this.Context.ShouldLogVerbose)
{
this.Context.TraceLog.End(TraceLevel.Verbose, "Panel Layout Engine", "Completed layout of component '" + this.Component + "' as a viewport component");
}
}
//
// methods
//
#region public void InitSize(PDFRect total ...)
/// <summary>
/// Initializes all the sizes in a PDFLayoutComponentRun.
/// It is not nescessary, as each property can be set individually,
/// but this makes sure everything has been provided
/// </summary>
/// <param name="total"></param>
/// <param name="border"></param>
/// <param name="content"></param>
/// <param name="margins"></param>
/// <param name="padding"></param>
/// <param name="options"></param>
public void InitSize(PDFRect total, PDFRect border, PDFRect content, PDFPositionOptions options)
{
this.TotalBounds = total;
this.BorderRect = border;
this.ContentRect = content;
this.PositionOptions = options;
}
protected override void DoLayoutChildren()
{
PDFPositionOptions position = this.FullStyle.CreatePostionOptions();
PDFLayoutXObject canvas = null;
if (position.ViewPort.HasValue)
{
canvas = this.ApplyViewPort(position, position.ViewPort.Value);
}
base.DoLayoutChildren();
if (null != canvas)
{
canvas.Close();
this.CloseCurrentLine();
canvas.OutPutName = (PDFName)this.Context.Document.GetIncrementID(PDFObjectTypes.CanvasXObject);
var rsrc = new PDFCanvasResource(this.Component as Canvas, canvas, position.ViewPort.Value);
var ratio = this.FullStyle.GetValue(SVGAspectRatio.AspectRatioStyleKey, SVGAspectRatio.Default);
var size = new PDFSize(canvas.Width, canvas.Height);
canvas.Matrix = CalculateMatrix(size, position.ViewPort.Value, ratio);
canvas.ClipRect = new PDFRect(position.X.HasValue ? position.X.Value : PDFUnit.Zero,
position.Y.HasValue ? position.Y.Value : PDFUnit.Zero,
canvas.Width, canvas.Height);
this.Context.DocumentLayout.CurrentPage.PageOwner.Register(rsrc);
this.Context.Document.EnsureResource(rsrc.ResourceType, rsrc.ResourceKey, rsrc);
}
}
public PDFLayoutXObject(PDFLayoutLine parent, PDFLayoutRegion childContainer, PDFPositionOptions position, IPDFComponent owner)
: base(parent, owner as IPDFComponent)
{
this._childContainer = childContainer;
this._resources = new PDFResourceList(this, false);
this.SubType = "Form";
this.Matrix = PDFTransformationMatrix.Identity();
this._position = position;
}
//
// support methods
//
#region protected virtual void BuildNewPage(PDFPageSize pgsize, PDFPositionOptions options ...)
/// <summary>
/// Creates a new page with the specified options and adds it to the current layout
/// </summary>
/// <param name="pgsize"></param>
/// <param name="options"></param>
/// <param name="alley"></param>
/// <param name="colcount"></param>
/// <param name="action"></param>
protected virtual PDFLayoutPage BuildNewPage(PDFSize pgsize, PDFPositionOptions options, PDFColumnOptions colOpts, OverflowAction action)
{
PDFLayoutDocument doclayout = this.DocumentLayout;
PDFLayoutPage pg = doclayout.BeginNewPage(this.Page, this, this.FullStyle, action);
pg.InitPage(pgsize, options, colOpts, this.Context);
return(pg);
}
private PDFLayoutInlineEnd CreateAndAddInlineEnd(PDFPositionOptions pos, PDFLayoutInlineBegin begin)
{
PDFLayoutBlock containerBlock = this.DocumentLayout.CurrentPage.LastOpenBlock();
PDFLayoutRegion containerRegion = containerBlock.CurrentRegion;
if (containerRegion.HasOpenItem == false)
{
containerRegion.BeginNewLine();
}
PDFLayoutLine currline = containerRegion.CurrentItem as PDFLayoutLine;
PDFLayoutInlineEnd end = currline.AddInlineRunEnd(this, this.Component, begin, pos);
return(end);
}
private PDFLayoutInlineBegin CreateAndAddInlineBegin(PDFPositionOptions pos)
{
PDFLayoutBlock containerBlock = this.DocumentLayout.CurrentPage.LastOpenBlock();
PDFLayoutRegion containerRegion = containerBlock.CurrentRegion;
if (containerRegion.HasOpenItem == false)
{
containerRegion.BeginNewLine();
}
PDFLayoutLine currline = containerRegion.CurrentItem as PDFLayoutLine;
PDFLayoutInlineBegin begin = currline.AddInlineRunStart(this, this.Component, pos, this.FullStyle);
return(begin);
}
/// <summary>
/// Lays out all the content of this panel
/// </summary>
/// <param name="position"></param>
protected virtual void DoLayoutBlockComponent(PDFPositionOptions position, PDFColumnOptions columnOptions)
{
PDFLayoutBlock containerBlock = CreateContinerBlock(position);
if (null == containerBlock)
{
return;
}
CreateBlockRegions(containerBlock, position, columnOptions);
this.DoLayoutChildren();
EnsureContentsFit();
}
protected virtual PDFLayoutXObject ApplyViewPort(PDFPositionOptions oldpos, PDFRect viewPort)
{
//Set the size to the viewport size
var newpos = oldpos.Clone();
newpos.X = viewPort.X;
newpos.Y = viewPort.Y;
//update to new widths
newpos.Width = viewPort.Width;
newpos.Height = viewPort.Height;
//Set the style values to the viewport too. (and reset the cache)
this.FullStyle.Size.Width = newpos.Width.Value;
this.FullStyle.Size.Height = newpos.Height.Value;
if (this.FullStyle is Scryber.Styles.StyleFull)
{
(this.FullStyle as StyleFull).ClearFullRefs();
}
PDFLayoutBlock containerBlock = this.DocumentLayout.CurrentPage.LastOpenBlock();
PDFLayoutRegion containerRegion = containerBlock.CurrentRegion;
if (containerRegion.HasOpenItem == false)
{
containerRegion.BeginNewLine();
}
//pos.Y = 200;
PDFLayoutRegion container = containerBlock.BeginNewPositionedRegion(newpos, this.DocumentLayout.CurrentPage, this.Component, this.FullStyle, false);
this.Line = containerRegion.CurrentItem as PDFLayoutLine;
PDFLayoutXObject begin = this.Line.AddXObjectRun(this, this.Component, container, newpos, this.FullStyle);
begin.SetOutputSize(oldpos.Width, oldpos.Height);
//this.CurrentBlock.IsFormXObject = true;
//this.CurrentBlock.XObjectViewPort = pos.ViewPort.Value;
return(begin);
}
private PDFLayoutXObject CreateAndAddInput(PDFPositionOptions pos)
{
PDFLayoutBlock containerBlock = this.DocumentLayout.CurrentPage.LastOpenBlock();
PDFLayoutRegion containerRegion = containerBlock.CurrentRegion;
if (containerRegion.HasOpenItem == false)
{
containerRegion.BeginNewLine();
}
//pos.Y = 200;
PDFLayoutRegion container = containerBlock.BeginNewPositionedRegion(pos, this.DocumentLayout.CurrentPage, this.Component, this.FullStyle, false);
this.Line = containerRegion.CurrentItem as PDFLayoutLine;
PDFLayoutXObject begin = this.Line.AddXObjectRun(this, this.Field, container, pos, this.FullStyle);
return(begin);
}
/// <summary>
/// Adds the component to the line using <i>all</i> the provided options
/// </summary>
/// <param name="comp">the component to add to the line</param>
/// <param name="total">the total bounds of the component</param>
/// <param name="border">the border rectangle wrt the total bounds</param>
/// <param name="content">the content rectangle wrt the total bounds</param>
/// <param name="baselineOffset">The required offset of the baseline of this line from it's top</param>
/// <param name="options">the positioning options</param>
/// <param name="style">the full style of the component</param>
/// <returns>The created run</returns>
public virtual PDFLayoutRun AddComponentRun(IPDFComponent comp, PDFRect total, PDFRect border,
PDFRect content, PDFUnit baselineOffset,
PDFPositionOptions options, Style style)
{
PDFLayoutComponentRun comprun = new PDFLayoutComponentRun(this, comp, style);
this.Runs.Add(comprun);
total = total.Offset(this.Width, this.OffsetY);
comprun.InitSize(total, border, content, options);
comprun.Close();
//Added 13th June 2016
this.BaseLineOffset = PDFUnit.Max(this.BaseLineOffset, baselineOffset);
return(comprun);
}
protected virtual void AdjustContainerForTextBaseline(PDFPositionOptions pos, IPDFComponent comp, Style full)
{
var text = full.CreateTextOptions();
if (text.DrawTextFromTop == false)
{
PDFUnit y;
var font = full.CreateFont();
if (pos.Y.HasValue)
{
y = pos.Y.Value;
}
else
{
y = 0;
}
var doc = this.Component.Document;
var frsrc = doc.GetFontResource(font, true);
var metrics = frsrc.Definition.GetFontMetrics(font.Size);
//TODO: Register the font so that we can get the metrics. Or call later on and move
// But for now it works (sort of).
if (null != metrics)
{
y -= metrics.Ascent;
}
else
{
y -= font.Size * 0.8;
}
pos.Y = y;
full.Position.Y = y;
if (full is StyleFull)
{
(full as StyleFull).ClearFullRefs();
}
}
}
//
// item layout
//
#region private void LayoutListItems(PDFPositionOptions listPosOpts)
/// <summary>
/// Lays out all the list item entries in sequence
/// </summary>
/// <param name="listPosOpts"></param>
private void LayoutListItems(PDFPositionOptions listPosOpts)
{
int index = 1;
_itemoffset = 0;
foreach (ListNumberEntry entry in this._entries)
{
PDFUnit h = this.LayoutAnItem(index, entry, listPosOpts);
_itemoffset += h;
index++;
if (this.ContinueLayout == false ||
this.DocumentLayout.CurrentPage.IsClosed ||
this.DocumentLayout.CurrentPage.CurrentBlock == null)
{
break;
}
}
}
protected override void DoLayoutComponent()
{
PDFPositionOptions pos = this.FullStyle.CreatePostionOptions();
PDFLayoutXObject xObject = this.CreateAndAddInput(pos);
_addedProxyText = false;
if (string.IsNullOrEmpty(this.Field.Value))
{
this.Field.Value = "Proxy Text";
_addedProxyText = true;
}
base.DoLayoutComponent();
xObject.Close();
if (pos.PositionMode == Drawing.PositionMode.Block)
{
this.CloseCurrentLine();
}
this.LayoutPage = this.Context.DocumentLayout.CurrentPage;
IArtefactCollection annots;
if (!this.LayoutPage.Artefacts.TryGetCollection(PDFArtefactTypes.Annotations, out annots))
{
annots = new PDFAnnotationCollection(PDFArtefactTypes.Annotations);
this.LayoutPage.Artefacts.Add(annots);
}
this.LayoutPage = this.Context.DocumentLayout.CurrentPage;
annots.Register(this.Field.Widget);
this.Field.Widget.SetAppearance(FormFieldAppearanceState.Normal, xObject, this.LayoutPage, this.FullStyle);
this.Field.Widget.SetAppearance(FormFieldAppearanceState.Down, xObject, this.LayoutPage, this.FullStyle);
this.Field.Widget.SetAppearance(FormFieldAppearanceState.Over, xObject, this.LayoutPage, this.FullStyle);
}
//
// layout methods
//
#region public void Layout(PDFLayoutContext context, Styles.PDFStyle fullstyle)
/// <summary>
/// Measures and lay's out the TextComponent that this engine references.
/// </summary>
/// <param name="context"></param>
/// <param name="fullstyle"></param>
public void Layout(PDFLayoutContext context, Styles.Style fullstyle)
{
if (null == context)
{
throw new ArgumentNullException("context");
}
if (null == fullstyle)
{
throw new ArgumentNullException("fullstyle");
}
this._ctx = context;
this._fullstyle = fullstyle;
this._posopts = fullstyle.CreatePostionOptions();
this._textopts = fullstyle.CreateTextOptions();
if (this._posopts.PositionMode == PositionMode.Invisible)
{
if (context.ShouldLogDebug)
{
context.TraceLog.Add(TraceLevel.Debug, "Layout", "Skipping the layout of the text component " + this.TextComponent.ID + " as it is invisible");
}
return;
}
this._frsrc = ((Document)this.TextComponent.Document).GetFontResource(this.TextRenderOptions.Font, true);
this.Context.PerformanceMonitor.Begin(PerformanceMonitorType.Text_Layout);
this._reader = this.TextComponent.CreateReader(context, fullstyle);
if (null != this._reader)
{
this.ContinueLayout = true;
this.DoLayoutText();
}
this.Context.PerformanceMonitor.End(PerformanceMonitorType.Text_Layout);
}
//
// methods
//
#region public void InitPage(int index, PDFSize size, PDFThickness margthick ...)
/// <summary>
/// Initializes this page with the required top block size and other measurements
/// </summary>
/// <param name="size"></param>
/// <param name="margthick"></param>
/// <param name="padthick"></param>
/// <param name="available"></param>
/// <param name="mode"></param>
/// <param name="cansplit"></param>
/// <param name="colcount"></param>
/// <param name="alley"></param>
public virtual void InitPage(PDFSize size, PDFPositionOptions options, PDFColumnOptions columns, PDFLayoutContext context)
{
this.Size = size;
this.PositionOptions = options;
OverflowSplit split = options.OverflowSplit;
PDFLayoutBlock block = new PDFLayoutBlock(this, this.Owner, this.Engine, this.FullStyle, split);
PDFRect totalbounds = new PDFRect(PDFPoint.Empty, this.Size);
block.InitRegions(totalbounds, options, columns, context);
//We need to set the bounds of the page block to the total for a page
//(as margins are taken off from the size of the page
// - this is different to a block where margins increase any explicit sizes).
block.TotalBounds = totalbounds;
this.ContentBlock = block;
this.CurrentBlock = block;
}
protected virtual PDFLayoutBlock CreateContinerBlock(PDFPositionOptions position)
{
bool newPage = false;
PDFLayoutBlock containerBlock = this.DocumentLayout.CurrentPage.LastOpenBlock();
PDFLayoutRegion containerRegion = containerBlock.CurrentRegion;
if (containerRegion.HasOpenItem)
{
containerRegion.CloseCurrentItem();
}
PDFUnit required = PDFUnit.Zero;
if (position.Height.HasValue)
{
required = position.Height.Value;
}
//ADDED for min/max sizes.
else if (position.MinimumHeight.HasValue)
{
required = position.MinimumHeight.Value;
}
//Do we have space
if (containerRegion.AvailableHeight <= 0 || (containerRegion.AvailableHeight < required))
{
if (this.MoveToNextRegion(required, ref containerRegion, ref containerBlock, out newPage) == false)
{
this.Context.TraceLog.Add(TraceLevel.Warning, LOG_CATEGORY, "Cannot fit the block for component " + this.Component.UniqueID + " in the avilable height (required = '" + position.Height + "', available = '" + containerRegion.AvailableHeight + "'), and we cannot overflow to a new region. Layout of component stopped and returning.");
this.ContinueLayout = false;
return(null);
}
}
CurrentBlock = containerBlock.BeginNewContainerBlock(this.Component, this, this.FullStyle, position.PositionMode);
CurrentBlock.BlockRepeatIndex = 0;
return(containerBlock);
}
public PDFLayoutXObject AddXObjectRun(IPDFLayoutEngine engine, IPDFComponent component, PDFLayoutRegion container, PDFPositionOptions options, Style full)
{
PDFLayoutXObject xobject = new PDFLayoutXObject(this, container, options, component);
this.Runs.Add(xobject);
return(xobject);
}
public PDFLayoutInlineEnd AddInlineRunEnd(IPDFLayoutEngine engine, IPDFComponent component, PDFLayoutInlineBegin start, PDFPositionOptions options)
{
PDFLayoutInlineEnd end = new PDFLayoutInlineEnd(this, start, component, options);
this.Runs.Add(end);
return(end);
}
public PDFLayoutInlineBegin AddInlineRunStart(IPDFLayoutEngine engine, IPDFComponent component, PDFPositionOptions options, Style full)
{
PDFLayoutInlineBegin begin = new PDFLayoutInlineBegin(this, component, options, full);
this.Runs.Add(begin);
return(begin);
}
public void CreatePostionOptionsTest()
{
Style target = new Style();
//Default (empty) position options
PDFPositionOptions actual = target.CreatePostionOptions();
Assert.AreEqual(false, actual.FillWidth);
Assert.AreEqual(HorizontalAlignment.Left, actual.HAlign);
Assert.AreEqual(false, actual.Height.HasValue);
Assert.AreEqual(false, actual.Width.HasValue);
Assert.AreEqual(false, actual.X.HasValue);
Assert.AreEqual(false, actual.Y.HasValue);
Assert.AreEqual(PDFThickness.Empty(), actual.Margins);
Assert.AreEqual(OverflowAction.NewPage, actual.OverflowAction);
Assert.AreEqual(OverflowSplit.Any, actual.OverflowSplit);
Assert.AreEqual(PDFThickness.Empty(), actual.Padding);
Assert.AreEqual(PositionMode.Block, actual.PositionMode);
Assert.AreEqual(VerticalAlignment.Top, actual.VAlign);
Assert.AreEqual(Visibility.Visible, actual.Visibility);
Assert.AreEqual(null, actual.Height);
Assert.AreEqual(null, actual.Width);
Assert.AreEqual(null, actual.X);
Assert.AreEqual(null, actual.Y);
Assert.AreEqual(false, actual.MinimumHeight.HasValue);
Assert.AreEqual(false, actual.MinimumWidth.HasValue);
Assert.AreEqual(false, actual.MaximumHeight.HasValue);
Assert.AreEqual(false, actual.MaximumWidth.HasValue);
Assert.AreEqual(null, actual.MinimumHeight);
Assert.AreEqual(null, actual.MinimumWidth);
Assert.AreEqual(null, actual.MaximumHeight);
Assert.AreEqual(null, actual.MaximumWidth);
target = new Style();
target.Position.PositionMode = PositionMode.Inline;
target.Size.FullWidth = true;
target.Position.HAlign = HorizontalAlignment.Center;
target.Position.VAlign = VerticalAlignment.Middle;
target.Position.X = 20;
target.Position.Y = 50;
target.Size.Width = 100;
//Don't define height
target.Size.MaximumHeight = 90;
target.Size.MinimumHeight = 50;
target.Size.MaximumWidth = 200;
target.Size.MinimumWidth = 150;
target.Overflow.Action = OverflowAction.Truncate;
target.Overflow.Split = OverflowSplit.Never;
target.Margins.All = 10;
target.Margins.Bottom = 20;
target.Padding.All = 20;
target.Padding.Right = 40;
actual = target.CreatePostionOptions();
Assert.AreEqual(false, actual.FillWidth); //false because a width has been set
Assert.AreEqual(HorizontalAlignment.Center, actual.HAlign);
Assert.AreEqual(VerticalAlignment.Middle, actual.VAlign);
Assert.AreEqual(false, actual.Height.HasValue);
Assert.AreEqual(true, actual.Width.HasValue);
Assert.AreEqual(true, actual.X.HasValue);
Assert.AreEqual(true, actual.Y.HasValue);
Assert.AreEqual((PDFUnit)100, actual.Width);
Assert.AreEqual((PDFUnit)20, actual.X);
Assert.AreEqual((PDFUnit)50, actual.Y);
Assert.AreEqual(null, actual.Height);
Assert.AreEqual((PDFUnit)200, actual.MaximumWidth);
Assert.AreEqual((PDFUnit)150, actual.MinimumWidth);
Assert.AreEqual((PDFUnit)90, actual.MaximumHeight);
Assert.AreEqual((PDFUnit)50, actual.MinimumHeight);
Assert.AreEqual(OverflowAction.Truncate, actual.OverflowAction);
Assert.AreEqual(OverflowSplit.Never, actual.OverflowSplit);
Assert.AreEqual((PDFUnit)10, actual.Margins.Left);
Assert.AreEqual((PDFUnit)20, actual.Margins.Bottom);
Assert.AreEqual((PDFUnit)20, actual.Padding.Left);
Assert.AreEqual((PDFUnit)40, actual.Padding.Right);
Assert.AreEqual(PositionMode.Relative, actual.PositionMode); //mode is relative (because we have an xand a y)
Assert.AreEqual(VerticalAlignment.Middle, actual.VAlign);
Assert.AreEqual(Visibility.Visible, actual.Visibility);
}
protected override PDFGraphicsPath CreatePath(PDFSize available, Style fullstyle)
{
PDFPositionOptions pos = fullstyle.CreatePostionOptions();
PDFPoint start = PDFPoint.Empty;
PDFPoint end = new PDFPoint(available.Width, start.Y);
if (pos.X.HasValue)
{
start.X = pos.X.Value;
}
if (pos.Y.HasValue)
{
start.Y = pos.Y.Value;
end.Y = pos.Y.Value;
}
if (pos.Width.HasValue)
{
end.X = pos.Width.Value + start.X;
if (pos.Height.HasValue)
{
end.Y = pos.Height.Value - start.Y;
}
else // no hight so this is a horizontal line
{
end.Y = start.Y;
}
}
else if (pos.FillWidth)
{
end.X = available.Width - start.X;
if (pos.Height.HasValue)
{
end.Y = pos.Height.Value - start.Y;
}
else // no hight so this is a horizontal line
{
end.Y = start.Y;
}
}
//no width so if we have a height this is a vertical line
else if (pos.Height.HasValue)
{
end.Y = pos.Height.Value + start.Y;
end.X = start.X;
}
else //default is a horizontal line
{
end.X = available.Width - start.X;
end.Y = start.Y;
}
PDFGraphicsPath path = new PDFGraphicsPath();
path.MoveTo(start);
path.LineTo(end);
return(path);
}
//
// overrides
//
/// <summary>
/// Main overridden method
/// </summary>
protected override void DoLayoutComponent()
{
IDisposable record = this.Context.PerformanceMonitor.Record(PerformanceMonitorType.Layout_Pages, "Page " + this.Component.ID);
//Take a copy of the style stack for the header and footer
this.PageStyleStack = this.Context.StyleStack.Clone();
//Get the page size and position options
PageSize pgsize = this.FullStyle.CreatePageSize();
pgsize.Size = this.GetNextPageSize(this.Component, this.FullStyle, pgsize.Size);
PDFPositionOptions options = this.FullStyle.CreatePostionOptions();
//Graphics
PDFGraphics g = this.Page.CreateGraphics(this.StyleStack, this.Context);
this.Context.Graphics = g;
//Size, border, margins
PDFRect bounds = new PDFRect(PDFPoint.Empty, pgsize.Size);
PDFRect contentrect = GetContentRectFromBounds(bounds, options.Margins, options.Padding);
//Columns
PDFColumnOptions colOpts = this.FullStyle.CreateColumnOptions();
//Overflow
OverflowAction action = options.OverflowAction;
PDFLayoutPage pg = BuildNewPage(pgsize.Size, options, colOpts, action);
//Register page numbering
PDFPageNumberOptions numbers = this.GetPageNumbering(this.FullStyle);
this.RegisterPageNumbering(pg, numbers);
this.LayoutPageContent();
//close the last page
PDFLayoutPage last = this.DocumentLayout.CurrentPage;
if (last.IsClosed == false)
{
last.Close();
}
//Unregister the page numbers.
this.UnRegisterPageNumbering(last, numbers);
//release graphics
this.Context.Graphics = null;
g.Dispose();
record.Dispose();
}
/// <summary>
/// Lays out a single list item based on the entry, and the list position options
/// </summary>
/// <param name="index"></param>
/// <param name="entry"></param>
/// <param name="listPosOpts"></param>
/// <returns></returns>
private PDFUnit LayoutAnItem(int index, ListNumberEntry entry, PDFPositionOptions listPosOpts)
{
//restore the items applied style onto the stack
this.StyleStack.Push(entry.AppliedStyle);
Style full = entry.FullStyle;
PDFUnit numberWidth = entry.NumberWidth;
PDFArtefactRegistrationSet artefacts = entry.ListItem.RegisterLayoutArtefacts(this.Context, full);
PDFPositionOptions itemopts = full.CreatePostionOptions();
PDFUnit pageHeight = this.Context.DocumentLayout.CurrentPage.Height;
PDFUnit h = pageHeight;
PDFUnit w = _listBlock.AvailableBounds.Width;
PDFUnit y = _itemoffset;
PDFUnit alley = DefaultListItemAlley;
if (itemopts.HasAlleyWidth)
{
alley = itemopts.AlleyWidth;
}
else if (listPosOpts.HasAlleyWidth)
{
alley = listPosOpts.AlleyWidth;
}
if (itemopts.Height.HasValue)
{
h = itemopts.Height.Value;
}
else if (itemopts.Margins.IsEmpty == false)
{
h -= itemopts.Margins.Top + itemopts.Margins.Bottom;
}
h -= itemopts.Padding.Top + itemopts.Padding.Bottom;
if (itemopts.Width.HasValue)
{
w = itemopts.Width.Value;
}
else if (itemopts.Margins.IsEmpty == false)
{
w -= itemopts.Margins.Left + itemopts.Margins.Right;
}
w -= itemopts.Padding.Left + itemopts.Padding.Right;
PDFRect totalBounds = new PDFRect(PDFUnit.Zero, y, w, h);
this._itemblock = _listBlock.BeginNewContainerBlock(entry.ListItem, this, full, itemopts.PositionMode);
PDFColumnOptions colOpts = new PDFColumnOptions()
{
AlleyWidth = alley, AutoFlow = false, ColumnCount = 2
};
this._itemblock.InitRegions(totalBounds, itemopts, colOpts, this.Context);
//Alter the widths of the regions to allow for only the number width
PDFRect region1bounds = this._itemblock.Columns[0].TotalBounds;
PDFUnit difference = region1bounds.Width - numberWidth;
region1bounds.Width = numberWidth;
this._itemblock.Columns[0].TotalBounds = region1bounds;
this._itemblock.Columns[0].HAlignment = entry.NumberAlignment;
PDFRect region2Bounds = this._itemblock.Columns[1].TotalBounds;
if (region2Bounds.X > 0)
{
region2Bounds.X -= difference;
}
region2Bounds.Width += difference;
this._itemblock.Columns[1].TotalBounds = region2Bounds;
PDFUnit numberHeight = this.LayoutItemNumber(entry, full);
this._itemblock.CurrentRegion.Close();
bool success = this._itemblock.MoveToNextRegion(true, PDFUnit.Zero, this.Context); //Pass Zero as we are not interested in overflowing yet
PDFUnit contentHeight = this.LayoutItemContent(entry);
//check that we can fit - addind the margins and padding back in.
PDFUnit itemHeight = PDFUnit.Max(numberHeight, contentHeight);
if (itemopts.Height.HasValue)
{
itemHeight = itemopts.Height.Value;
}
else if (itemopts.Margins.IsEmpty == false)
{
itemHeight += itemopts.Margins.Top + itemopts.Margins.Bottom;
}
itemHeight += itemopts.Padding.Top + itemopts.Padding.Bottom;
if (itemHeight > this._listBlock.AvailableBounds.Height - _itemoffset)
{
PDFLayoutBlock origparent = this.CurrentBlock;
PDFLayoutRegion origregion = this.CurrentBlock.CurrentRegion;
PDFLayoutBlock origlist = this._listBlock;
PDFLayoutBlock origItem = this._itemblock;
if (this._listBlock.Position.OverflowSplit == OverflowSplit.Never)
{
if (this.MoveFullListToNextRegion(_itemoffset + itemHeight))
{
//_itemoffset += itemHeight;
//PDFRect avail = _listBlock.AvailableBounds;
//avail.Height = avail.Height - _itemoffset;
}
else
{
this.Context.TraceLog.Add(TraceLevel.Warning, LOG_CATEGORY, "List '" + this.List.UniqueID + "' has filled the available space, and cannot overflow onto a new region. Layout has stopped at item index " + index);
this.ContinueLayout = false;
return(0);
}
}
else if (this.StartListInAnotherRegion(itemHeight, origItem, index))
{
//origregion.AddToSize(origlist);
_itemoffset = 0;
origItem.Offset(0, 0);
}
else
{
(origItem.Parent as PDFLayoutBlock).CurrentRegion.RemoveItem(origItem);
this.Context.TraceLog.Add(TraceLevel.Warning, LOG_CATEGORY, "List '" + this.List.UniqueID + "' has filled the available space, and cannot overflow onto a new region. Layout has stopped at item index " + index);
this.ContinueLayout = false;
}
}
else if (this._itemblock.CurrentRegion.IsClosed)
{
this._itemblock = this.CurrentBlock.LastOpenBlock();
this._listBlock = this._itemblock.Parent as PDFLayoutBlock;
}
if (null != this._itemblock)
{
if (this._itemblock.CurrentRegion.IsClosed == false)
{
this._itemblock.CurrentRegion.Close();
}
if (this._itemblock.IsClosed == false)
{
this._itemblock.Close();
this._listBlock.CurrentRegion.AddToSize(this._itemblock);
}
}
if (this.ContinueLayout)
{
RegisterChildLayout(entry.ListItem);
}
if (null != artefacts)
{
entry.ListItem.CloseLayoutArtefacts(this.Context, artefacts, full);
}
this.StyleStack.Pop();
return(itemHeight);
}
public PDFSize GetRequiredSizeForLayout(PDFSize available, PDFLayoutContext context, Style appliedstyle)
{
PDFPositionOptions pos = appliedstyle.CreatePostionOptions();
PDFTextRenderOptions opts = appliedstyle.CreateTextOptions();
PDFImageXObject xobj = this.GetImageObject(context, appliedstyle);
PDFSize naturalSize = xobj.GetImageSize();
PDFUnit h;
PDFUnit w;
if (pos.Height.HasValue && pos.Width.HasValue)
{
w = pos.Width.Value;
h = pos.Height.Value;
}
else if (pos.Width.HasValue)
{
w = pos.Width.Value;
h = naturalSize.Height * (pos.Width.Value.PointsValue / naturalSize.Width.PointsValue);
}
else if (pos.Height.HasValue)
{
h = pos.Height.Value;
w = naturalSize.Width * (pos.Height.Value.PointsValue / naturalSize.Height.PointsValue);
}
else if (pos.PositionMode == PositionMode.Inline)
{
//We dont have an explicit size
//So set it to the line height.
if (opts.Font != null && opts.Font.FontMetrics != null)
{
h = opts.Font.FontMetrics.Ascent;
}
else
{
h = opts.Font.Size * 0.75;
}
w = naturalSize.Width * (h.PointsValue / naturalSize.Height.PointsValue);
}
else //We are in a block on our own line
{
h = naturalSize.Height;
w = naturalSize.Width;
if (w > available.Width)
{
w = available.Width;
h = naturalSize.Height * (available.Width.PointsValue / naturalSize.Width.PointsValue);
if (h < naturalSize.Height * this.MinimumScaleReduction)
{
//exceeded our maximum - so reverting back.
h = naturalSize.Height;
w = naturalSize.Width;
}
}
if (h > available.Height)
{
h = available.Height;
w = naturalSize.Width * (available.Height.PointsValue / naturalSize.Height.PointsValue);
if (w < naturalSize.Width * this.MinimumScaleReduction)
{
h = naturalSize.Height;
w = naturalSize.Width;
}
}
}
return(new PDFSize(w, h));
}
public PDFLayoutInlineBegin(PDFLayoutLine line, IPDFComponent owner, PDFPositionOptions pos, Style fullStyle)
: base(line, owner)
{
this.InlinePosition = pos;
this.FullStyle = fullStyle;
}
protected override PDFLayoutRegion BeginNewRelativeRegionForChild(PDFPositionOptions pos, IPDFComponent comp, Style full)
{
this.AdjustContainerForTextBaseline(pos, comp, full);
return(base.BeginNewRelativeRegionForChild(pos, comp, full));
}
//
// main override
//
#region protected override void DoLayoutComponent()
/// <summary>
/// Performs the actual layout of the list and items in it.
/// </summary>
protected override void DoLayoutComponent()
{
if (this.Context.ShouldLogDebug)
{
this.Context.TraceLog.Begin(TraceLevel.Debug, ListEngineLogCategory, string.Format("Starting the layout of the list {0}", this.List.ID));
}
this.ContinueLayout = true;
this.CurrentBlock = this.Context.DocumentLayout.CurrentPage.LastOpenBlock();
if (this.CurrentBlock.CurrentRegion != null && this.CurrentBlock.CurrentRegion.HasOpenItem)
{
this.CurrentBlock.CurrentRegion.CloseCurrentItem();
}
PDFPositionOptions pos = this.FullStyle.CreatePostionOptions();
//Set up the outer container block that will hold the list and all it's items
_listBlock = this.CurrentBlock.BeginNewContainerBlock(this.List, this, this.FullStyle, pos.PositionMode);
PDFRect bounds = this.CurrentBlock.CurrentRegion.UnusedBounds;
if (bounds.X > 0)
{
bounds.X = PDFUnit.Zero;
}
if (pos.Width.HasValue)
{
bounds.Width = pos.Width.Value;
}
else if (pos.Margins.IsEmpty == false)
{
bounds.Width -= pos.Margins.Left + pos.Margins.Right;
}
if (pos.Height.HasValue)
{
bounds.Height = pos.Height.Value;
}
else if (pos.Margins.IsEmpty == false)
{
bounds.Height -= pos.Margins.Top + pos.Margins.Bottom;
}
PDFColumnOptions columnOptions = new PDFColumnOptions()
{
AlleyWidth = PDFUnit.Zero, AutoFlow = false, ColumnCount = 1
};
_listBlock.InitRegions(bounds, pos, columnOptions, this.Context);
this.OpenListNumbering();
this.BuildListEntries(out _itemNumberWidth);
this.LayoutListItems(pos);
_listBlock.CurrentRegion.CloseCurrentItem();
_listBlock.CurrentRegion.Close();
_listBlock.Close();
this.CurrentBlock.CurrentRegion.AddToSize(_listBlock);
if (this.Context.ShouldLogDebug)
{
this.Context.TraceLog.End(TraceLevel.Debug, ListEngineLogCategory, string.Format("Completed the layout of the list {0}", this.List.ID));
}
this.CloseListNumbering();
}
public PDFLayoutInlineEnd(PDFLayoutLine line, PDFLayoutInlineBegin begin, IPDFComponent owner, PDFPositionOptions pos)
: base(line, owner)
{
this.BeginMarker = begin;
}
