//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
/// <summary>
/// Sets current page context to be used in the cache's queries
/// </summary>
/// <param name="currentPage">Document page to become current in the context</param>
/// <returns>Reference to object compatible with IDisposable to re-initialize page context</returns>
internal IDisposable SetDocumentFormatContext(FlowDocumentPage currentPage)
{
if (!CheckFlags(Flags.FormattedOnce))
{
SetFlags(true, Flags.FormattedOnce);
_owner.InitializeForFirstFormatting();
}
return(new DocumentFormatContext(this, currentPage) as IDisposable);
}
// Token: 0x06006A57 RID: 27223 RVA: 0x001E4404 File Offset: 0x001E2604
internal IDisposable SetDocumentFormatContext(FlowDocumentPage currentPage)
{
if (!this.CheckFlags(StructuralCache.Flags.FormattedOnce))
{
this.SetFlags(true, StructuralCache.Flags.FormattedOnce);
this._owner.InitializeForFirstFormatting();
}
return(new StructuralCache.DocumentFormatContext(this, currentPage));
}
//------------------------------------------------------
//
// Internal Methods
//
//-----------------------------------------------------
#region Internal Methods
/// <summary>
/// Sets current page context to be used in the cache's queries
/// </summary>
/// <param name="currentPage">Document page to become current in the context</param>
/// <returns>Reference to object compatible with IDisposable to re-initialize page context</returns>
internal IDisposable SetDocumentFormatContext(FlowDocumentPage currentPage)
{
if (!CheckFlags(Flags.FormattedOnce))
{
SetFlags(true, Flags.FormattedOnce);
_owner.InitializeForFirstFormatting();
}
return (new DocumentFormatContext(this, currentPage) as IDisposable);
}
// Token: 0x06008AB0 RID: 35504 RVA: 0x002576EC File Offset: 0x002558EC
internal DocumentOperationContext(StructuralCache owner, FlowDocumentPage page)
{
Invariant.Assert(owner != null, "Invalid owner object.");
Invariant.Assert(page != null, "Invalid page object.");
Invariant.Assert(owner._currentPage == null, "Page formatting reentrancy detected. Trying to create second _DocumentPageContext for the same StructuralCache.");
this._owner = owner;
this._owner._currentPage = page;
this._owner._illegalTreeChangeDetected = false;
owner.PtsContext.Enter();
}
/// <summary>
/// Updates entry of BreakRecordTable with new data.
/// </summary>
/// <param name="pageNumber">Index of the entry to update.</param>
/// <param name="page">DocumentPage object that has been just created.</param>
/// <param name="brOut">Output BreakRecord for created page.</param>
/// <param name="dependentMax">Last content position that can affect the output break record.</param>
internal void UpdateEntry(int pageNumber, FlowDocumentPage page, PageBreakRecord brOut, TextPointer dependentMax)
{
ITextView textView;
BreakRecordTableEntry entry;
bool isClean;
Invariant.Assert(pageNumber >= 0 && pageNumber <= _breakRecords.Count, "The previous BreakRecord does not exist.");
Invariant.Assert(page != null && page != DocumentPage.Missing, "Cannot update BRT with an invalid document page.");
// Get TextView for DocumentPage. This TextView is used to access list of
// content ranges. Those serve as optimalization in finding affeceted pages.
textView = (ITextView)((IServiceProvider)page).GetService(typeof(ITextView));
Invariant.Assert(textView != null, "Cannot access ITextView for FlowDocumentPage.");
// Get current state of BreakRecordTable
isClean = this.IsClean;
// Add new entry into BreakRecordTable
entry = new BreakRecordTableEntry();
entry.BreakRecord = brOut;
entry.DocumentPage = new WeakReference(page);
entry.TextSegments = textView.TextSegments;
entry.DependentMax = dependentMax;
if (pageNumber == _breakRecords.Count)
{
_breakRecords.Add(entry);
// Raise PaginationProgress event only if we did not have valid
// entry for specified page number.
_owner.OnPaginationProgress(pageNumber, 1);
}
else
{
// If old Page and/or BreakRecord are not changing, do not dispose them.
if (_breakRecords[pageNumber].BreakRecord != null &&
_breakRecords[pageNumber].BreakRecord != entry.BreakRecord)
{
_breakRecords[pageNumber].BreakRecord.Dispose();
}
if (_breakRecords[pageNumber].DocumentPage != null &&
_breakRecords[pageNumber].DocumentPage.Target != null &&
_breakRecords[pageNumber].DocumentPage.Target != entry.DocumentPage.Target)
{
((FlowDocumentPage)_breakRecords[pageNumber].DocumentPage.Target).Dispose();
}
_breakRecords[pageNumber] = entry;
}
// Raise PaginationCompleted event only if the BreakRecordTable just
// become clean.
if (!isClean && this.IsClean)
{
_owner.OnPaginationCompleted();
}
}
internal ColumnResult(FlowDocumentPage page, ref PTS.FSTRACKDESCRIPTION trackDesc, Vector contentOffset)
{
_page = page;
_columnHandle = trackDesc.pfstrack;
_layoutBox = new Rect(
TextDpi.FromTextDpi(trackDesc.fsrc.u), TextDpi.FromTextDpi(trackDesc.fsrc.v),
TextDpi.FromTextDpi(trackDesc.fsrc.du), TextDpi.FromTextDpi(trackDesc.fsrc.dv));
_layoutBox.X += contentOffset.X;
_layoutBox.Y += contentOffset.Y;
_columnOffset = new Vector(TextDpi.FromTextDpi(trackDesc.fsrc.u), TextDpi.FromTextDpi(trackDesc.fsrc.v));
_hasTextContent = false;
}
// Token: 0x06006755 RID: 26453 RVA: 0x001CE01C File Offset: 0x001CC21C
internal FlowDocumentPage GetCachedDocumentPage(int pageNumber)
{
FlowDocumentPage flowDocumentPage = null;
if (pageNumber < this._breakRecords.Count)
{
Invariant.Assert(this._breakRecords[pageNumber] != null, "Invalid BreakRecordTable entry.");
WeakReference documentPage = this._breakRecords[pageNumber].DocumentPage;
if (documentPage != null)
{
flowDocumentPage = (documentPage.Target as FlowDocumentPage);
if (flowDocumentPage != null && flowDocumentPage.IsDisposed)
{
flowDocumentPage = null;
}
}
}
return(flowDocumentPage);
}
/// <summary>
/// Retrieves cached DocumentPage for given PageNumber.
/// </summary>
/// <param name="pageNumber">
/// Page index indicating which cached DocumentPage should be retrieved.
/// </param>
/// <returns>Cached DocumentPage for given PageNumber.</returns>
internal FlowDocumentPage GetCachedDocumentPage(int pageNumber)
{
WeakReference pageRef;
FlowDocumentPage documentPage = null;
if (pageNumber < _breakRecords.Count)
{
Invariant.Assert(_breakRecords[pageNumber] != null, "Invalid BreakRecordTable entry.");
pageRef = _breakRecords[pageNumber].DocumentPage;
if (pageRef != null)
{
documentPage = pageRef.Target as FlowDocumentPage;
if (documentPage != null && documentPage.IsDisposed)
{
documentPage = null;
}
}
}
return(documentPage);
}
// Token: 0x0600675B RID: 26459 RVA: 0x001CE224 File Offset: 0x001CC424
internal void UpdateEntry(int pageNumber, FlowDocumentPage page, PageBreakRecord brOut, TextPointer dependentMax)
{
Invariant.Assert(pageNumber >= 0 && pageNumber <= this._breakRecords.Count, "The previous BreakRecord does not exist.");
Invariant.Assert(page != null && page != DocumentPage.Missing, "Cannot update BRT with an invalid document page.");
ITextView textView = (ITextView)((IServiceProvider)page).GetService(typeof(ITextView));
Invariant.Assert(textView != null, "Cannot access ITextView for FlowDocumentPage.");
bool isClean = this.IsClean;
BreakRecordTable.BreakRecordTableEntry breakRecordTableEntry = new BreakRecordTable.BreakRecordTableEntry();
breakRecordTableEntry.BreakRecord = brOut;
breakRecordTableEntry.DocumentPage = new WeakReference(page);
breakRecordTableEntry.TextSegments = textView.TextSegments;
breakRecordTableEntry.DependentMax = dependentMax;
if (pageNumber == this._breakRecords.Count)
{
this._breakRecords.Add(breakRecordTableEntry);
this._owner.OnPaginationProgress(pageNumber, 1);
}
else
{
if (this._breakRecords[pageNumber].BreakRecord != null && this._breakRecords[pageNumber].BreakRecord != breakRecordTableEntry.BreakRecord)
{
this._breakRecords[pageNumber].BreakRecord.Dispose();
}
if (this._breakRecords[pageNumber].DocumentPage != null && this._breakRecords[pageNumber].DocumentPage.Target != null && this._breakRecords[pageNumber].DocumentPage.Target != breakRecordTableEntry.DocumentPage.Target)
{
((FlowDocumentPage)this._breakRecords[pageNumber].DocumentPage.Target).Dispose();
}
this._breakRecords[pageNumber] = breakRecordTableEntry;
}
if (!isClean && this.IsClean)
{
this._owner.OnPaginationCompleted();
}
}
/// <summary>
/// Sets current page context to be used in the cache's queries
/// </summary>
/// <param name="currentPage">Document page to become current in the context</param>
/// <returns>Reference to object compatible with IDisposable to re-initialize page context</returns>
internal IDisposable SetDocumentVisualValidationContext(FlowDocumentPage currentPage)
{
return (new DocumentVisualValidationContext(this, currentPage) as IDisposable);
}
/// <summary>
/// Sets current page context to be used in the cache's queries
/// </summary>
/// <param name="currentPage">Document page to become current in the context</param>
/// <returns>Reference to object compatible with IDisposable to re-initialize page context</returns>
internal IDisposable SetDocumentArrangeContext(FlowDocumentPage currentPage)
{
return (new DocumentArrangeContext(this, currentPage) as IDisposable);
}
/// <summary>
/// Updates entry of BreakRecordTable with new data.
/// </summary>
/// <param name="pageNumber">Index of the entry to update.</param>
/// <param name="page">DocumentPage object that has been just created.</param>
/// <param name="brOut">Output BreakRecord for created page.</param>
/// <param name="dependentMax">Last content position that can affect the output break record.</param>
internal void UpdateEntry(int pageNumber, FlowDocumentPage page, PageBreakRecord brOut, TextPointer dependentMax)
{
ITextView textView;
BreakRecordTableEntry entry;
bool isClean;
Invariant.Assert(pageNumber >= 0 && pageNumber <= _breakRecords.Count, "The previous BreakRecord does not exist.");
Invariant.Assert(page != null && page != DocumentPage.Missing, "Cannot update BRT with an invalid document page.");
// Get TextView for DocumentPage. This TextView is used to access list of
// content ranges. Those serve as optimalization in finding affeceted pages.
textView = (ITextView)((IServiceProvider)page).GetService(typeof(ITextView));
Invariant.Assert(textView != null, "Cannot access ITextView for FlowDocumentPage.");
// Get current state of BreakRecordTable
isClean = this.IsClean;
// Add new entry into BreakRecordTable
entry = new BreakRecordTableEntry();
entry.BreakRecord = brOut;
entry.DocumentPage = new WeakReference(page);
entry.TextSegments = textView.TextSegments;
entry.DependentMax = dependentMax;
if (pageNumber == _breakRecords.Count)
{
_breakRecords.Add(entry);
// Raise PaginationProgress event only if we did not have valid
// entry for specified page number.
_owner.OnPaginationProgress(pageNumber, 1);
}
else
{
// If old Page and/or BreakRecord are not changing, do not dispose them.
if (_breakRecords[pageNumber].BreakRecord != null &&
_breakRecords[pageNumber].BreakRecord != entry.BreakRecord)
{
_breakRecords[pageNumber].BreakRecord.Dispose();
}
if (_breakRecords[pageNumber].DocumentPage != null &&
_breakRecords[pageNumber].DocumentPage.Target != null &&
_breakRecords[pageNumber].DocumentPage.Target != entry.DocumentPage.Target)
{
((FlowDocumentPage)_breakRecords[pageNumber].DocumentPage.Target).Dispose();
}
_breakRecords[pageNumber] = entry;
}
// Raise PaginationCompleted event only if the BreakRecordTable just
// become clean.
if (!isClean && this.IsClean)
{
_owner.OnPaginationCompleted();
}
}
// Token: 0x06006A59 RID: 27225 RVA: 0x001E4432 File Offset: 0x001E2632
internal IDisposable SetDocumentVisualValidationContext(FlowDocumentPage currentPage)
{
return(new StructuralCache.DocumentVisualValidationContext(this, currentPage));
}
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor
/// </summary>
internal FlowDocumentFormatter(FlowDocument document)
{
_document = document;
_documentPage = new FlowDocumentPage(_document.StructuralCache);
}
/// <summary>
/// Sets current page context to be used in the cache's queries
/// </summary>
/// <param name="currentPage">Document page to become current in the context</param>
/// <returns>Reference to object compatible with IDisposable to re-initialize page context</returns>
internal IDisposable SetDocumentArrangeContext(FlowDocumentPage currentPage)
{
return(new DocumentArrangeContext(this, currentPage) as IDisposable);
}
// Token: 0x06008AB4 RID: 35508 RVA: 0x002577D0 File Offset: 0x002559D0
internal DocumentFormatContext(StructuralCache owner, FlowDocumentPage page) : base(owner, page)
{
this._owner._documentFormatContext = this;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="owner">Associated structural cache instance</param>
/// <param name="page">Document page to set</param>
internal DocumentOperationContext(StructuralCache owner, FlowDocumentPage page)
{
Invariant.Assert(owner != null, "Invalid owner object.");
Invariant.Assert(page != null, "Invalid page object.");
Invariant.Assert(owner._currentPage == null, "Page formatting reentrancy detected. Trying to create second _DocumentPageContext for the same StructuralCache.");
_owner = owner;
_owner._currentPage = page;
_owner._illegalTreeChangeDetected = false;
owner.PtsContext.Enter();
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="owner">Associated structural cache instance</param>
/// <param name="page">Document page to set</param>
internal DocumentArrangeContext(StructuralCache owner, FlowDocumentPage page) : base(owner, page)
{
_owner._documentArrangeContext = this;
}
/// <summary>
/// Sets current page context to be used in the cache's queries
/// </summary>
/// <param name="currentPage">Document page to become current in the context</param>
/// <returns>Reference to object compatible with IDisposable to re-initialize page context</returns>
internal IDisposable SetDocumentVisualValidationContext(FlowDocumentPage currentPage)
{
return(new DocumentVisualValidationContext(this, currentPage) as IDisposable);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="owner">Associated structural cache instance</param>
/// <param name="page">Document page to set</param>
internal DocumentVisualValidationContext(StructuralCache owner, FlowDocumentPage page) : base(owner, page) { }
/// <summary>
/// Constructor
/// </summary>
/// <param name="owner">Associated structural cache instance</param>
/// <param name="page">Document page to set</param>
internal DocumentArrangeContext(StructuralCache owner, FlowDocumentPage page) : base(owner, page)
{
_owner._documentArrangeContext = this;
}
// ------------------------------------------------------------------
// Create a visual representing a PTS page.
// ------------------------------------------------------------------
internal PageVisual(FlowDocumentPage owner)
{
_owner = new WeakReference(owner);
}
// ------------------------------------------------------------------
// Create a visual representing a PTS page.
// ------------------------------------------------------------------
internal PageVisual(FlowDocumentPage owner)
{
_owner = new WeakReference(owner);
}
/// <summary>
/// Format the page identified by the pageNumber parameter.
/// </summary>
private DocumentPage FormatPage(int pageNumber)
{
FlowDocumentPage page;
PageBreakRecord breakRecordIn, breakRecordOut;
Thickness pageMargin;
Size pageSize;
Invariant.Assert(_brt.HasPageBreakRecord(pageNumber), "BreakRecord for specified page number does not exist.");
breakRecordIn = _brt.GetPageBreakRecord(pageNumber);
page = new FlowDocumentPage(_document.StructuralCache);
pageSize = ComputePageSize();
pageMargin = _document.ComputePageMargin();
breakRecordOut = page.FormatFinite(pageSize, pageMargin, breakRecordIn);
page.Arrange(pageSize);
// NOTE: May execute external code, so it is possible to get
// an exception here.
_brt.UpdateEntry(pageNumber, page, breakRecordOut, page.DependentMax);
return page;
}
// Token: 0x06006A58 RID: 27224 RVA: 0x001E4429 File Offset: 0x001E2629
internal IDisposable SetDocumentArrangeContext(FlowDocumentPage currentPage)
{
return(new StructuralCache.DocumentArrangeContext(this, currentPage));
}
//-------------------------------------------------------------------
//
// Constructors
//
//-------------------------------------------------------------------
#region Constructors
/// <summary>
/// Constructor.
/// </summary>
/// <param name="owner">
/// Root of layout structure visualizing content.
/// </param>
/// <param name="textContainer">
/// TextContainer providing content for this view.
/// </param>
internal TextDocumentView(FlowDocumentPage owner, ITextContainer textContainer)
{
_owner = owner;
_textContainer = textContainer;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="owner">Associated structural cache instance</param>
/// <param name="page">Document page to set</param>
internal DocumentVisualValidationContext(StructuralCache owner, FlowDocumentPage page) : base(owner, page)
{
}