Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / MS / Internal / PtsHost / UpdateRecord.cs / 1305600 / UpdateRecord.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // File: UpdateRecord.cs // // Description: Contains information about current state of upate process // in the current container paragraph. // // History: // 05/05/2003 : [....] - moving from Avalon branch. // //--------------------------------------------------------------------------- using System; using System.Diagnostics; using MS.Internal.PtsHost.UnsafeNativeMethods; namespace MS.Internal.PtsHost { // --------------------------------------------------------------------- // Contains information about current state of upate process in the // current container paragraph. // --------------------------------------------------------------------- internal sealed class UpdateRecord { // ------------------------------------------------------------------ // Constructor // ----------------------------------------------------------------- internal UpdateRecord() { Dtr = new DirtyTextRange(0,0,0); FirstPara = SyncPara = null; ChangeType = PTS.FSKCHANGE.fskchNone; Next = null; InProcessing = false; } // ------------------------------------------------------------------ // Merge with next update record. // ------------------------------------------------------------------ internal void MergeWithNext() { Debug.Assert(Next != null); // This is the last UR, cannot merge with next. // Merge DTRs int delta = Next.Dtr.StartIndex - Dtr.StartIndex; // Dtr.StartIndex is not changing Dtr.PositionsAdded += delta + Next.Dtr.PositionsAdded; Dtr.PositionsRemoved += delta + Next.Dtr.PositionsRemoved; // Reasign [....] point and next UpdateRecord SyncPara = Next.SyncPara; Next = Next.Next; } // ----------------------------------------------------------------- // Dirty text range. // ------------------------------------------------------------------ internal DirtyTextRange Dtr; // ----------------------------------------------------------------- // The first paragraph affected by the change. // ----------------------------------------------------------------- internal BaseParagraph FirstPara; // ----------------------------------------------------------------- // The first paragraph not affected by DTR, synchronization point for // update process. // ------------------------------------------------------------------ internal BaseParagraph SyncPara; // ----------------------------------------------------------------- // Type of the change (none, new, inside). // ------------------------------------------------------------------ internal PTS.FSKCHANGE ChangeType; // ------------------------------------------------------------------ // Next UpdateRecord. // ----------------------------------------------------------------- internal UpdateRecord Next; // ------------------------------------------------------------------ // Update record is in processing mode? // ----------------------------------------------------------------- internal bool InProcessing; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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