Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Framework / System / Windows / Documents / HighlightVisual.cs / 1 / HighlightVisual.cs
//---------------------------------------------------------------------------- //// Copyright (C) 2003 by Microsoft Corporation. All rights reserved. // // // Description: // Implements the HighlightVisual element for rendering highlight for fixed // document // // History: // 03/08/2004 - Eric Leese (eleese) - Created. // //--------------------------------------------------------------------------- namespace System.Windows.Documents { using MS.Internal; // DoubleUtil using MS.Internal.Documents; using MS.Utility; // ExceptionStringTable using System.ComponentModel; using System.Windows.Threading; // Dispatcher using System.Windows; // DependencyID etc. using System.Windows.Media; // Visual using System.Windows.Shapes; // Glyphs using System; using System.Collections; using System.IO; using System.Diagnostics; internal sealed class HighlightVisual : Adorner { //------------------------------------------------------------------- // // Constructors // //--------------------------------------------------------------------- #region Constructors ////// HighlightVisual construction /// /// FixedDocument where selection is taking place /// FixedPage that is being highlighted internal HighlightVisual(FixedDocument panel, FixedPage page) : base(page) { _panel = panel; _page = page; } #endregion Constructors //-------------------------------------------------------------------- // // Public Methods // //--------------------------------------------------------------------- //-------------------------------------------------------------------- // // Public Properties // //---------------------------------------------------------------------- //------------------------------------------------------------------- // // Public Events // //---------------------------------------------------------------------- //------------------------------------------------------------------- // // Protected Methods // //--------------------------------------------------------------------- #region Protected Methods protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters) { return null; } protected override HitTestResult HitTestCore(PointHitTestParameters hitTestParameters) { return null; } ////// Draw highlight /// override protected void OnRender(DrawingContext dc) { #if DEBUG DocumentsTrace.FixedTextOM.Highlight.Trace(string.Format("HightlightVisual Rendering")); #endif if (_panel.Highlights.ContainsKey(_page)) { ArrayList highlights = _panel.Highlights[_page]; Size pageSize = _panel.ComputePageSize(_page); Rect clipRect = new Rect(new Point(0, 0), pageSize); dc.PushClip(new RectangleGeometry(clipRect)); if (highlights != null) { _UpdateHighlightBackground(dc, highlights); _UpdateHighlightForeground(dc, highlights); } dc.Pop(); //clip } if (_rubberbandSelector != null && _rubberbandSelector.Page == _page) { Rect r = _rubberbandSelector.SelectionRect; if (!r.IsEmpty) { dc.DrawRectangle(SelectionHighlightInfo.ObjectMaskBrush, null, r); } } } #endregion Protected Methods //------------------------------------------------------------------- // // Internal Methods // //---------------------------------------------------------------------- #region Internal Methods internal void InvalidateHighlights() { AdornerLayer al = AdornerLayer.GetAdornerLayer(_page); if (al == null) { return; } al.Update(_page); } internal void UpdateRubberbandSelection(RubberbandSelector selector) { _rubberbandSelector = selector; InvalidateHighlights(); } ////// Finds the HighlightVisual for this page. /// internal static HighlightVisual GetHighlightVisual(FixedPage page) { AdornerLayer al = AdornerLayer.GetAdornerLayer(page); HighlightVisual hv; if (al == null) { return null; } Adorner[] adorners = al.GetAdorners(page); if (adorners != null) { foreach (Adorner ad in adorners) { hv = ad as HighlightVisual; if (hv != null) { return hv; } } } return null; } #endregion Internal Methods #region private Methods private void _UpdateHighlightBackground(DrawingContext dc, ArrayList highlights) { Debug.Assert(highlights != null); PathGeometry highlightGeometry = null; Brush highlightBrush = null; Rect combinedRect = Rect.Empty; foreach (FixedHighlight fh in highlights) { Brush bg = null; if (fh.HighlightType == FixedHighlightType.None) { #if NEVER // use this code if you want to see unrecognized highlights bg = Brushes.Yellow; #else continue; #endif } Rect backgroundRect = fh.ComputeDesignRect(); if (backgroundRect == Rect.Empty) { continue; } GeneralTransform transform = fh.Element.TransformToAncestor(_page); // This is a workaround. We should really look into changing Transform t = transform.AffineTransform; if (t == null) { t = Transform.Identity; } // Inflate by 1 pixel on each side to have a better selection visual for continuous lines // backgroundRect.Inflate(1,1); Glyphs g = fh.Glyphs; if (fh.HighlightType == FixedHighlightType.TextSelection) { bg = (g == null) ? SelectionHighlightInfo.ObjectMaskBrush : SelectionHighlightInfo.BackgroundBrush; } else if (fh.HighlightType == FixedHighlightType.AnnotationHighlight) { bg = fh.BackgroundBrush; } // can add cases for new types of highlights if (fh.Element.Clip != null) { Rect clipRect = fh.Element.Clip.Bounds; backgroundRect.Intersect(clipRect); //thisGeometry = Geometry.Combine(thisGeometry, fh.Element.Clip, GeometryCombineMode.Intersect, t); } Geometry thisGeometry = new RectangleGeometry(backgroundRect); thisGeometry.Transform = t; backgroundRect = transform.TransformBounds(backgroundRect); // used to cut down on calls to Geometry.Combine for complex geometries // involving multiple non-intersecting paths Debug.Assert(bg != null); if (bg != highlightBrush || backgroundRect.Top > combinedRect.Bottom + .1 || backgroundRect.Bottom + .1 < combinedRect.Top || backgroundRect.Left > combinedRect.Right + .1 || backgroundRect.Right + .1 < combinedRect.Left) { if (highlightBrush != null) { Debug.Assert(highlightGeometry != null); highlightGeometry.FillRule = FillRule.Nonzero; dc.DrawGeometry(highlightBrush, null, highlightGeometry); } highlightBrush = bg; highlightGeometry = new PathGeometry(); highlightGeometry.AddGeometry(thisGeometry); combinedRect = backgroundRect; } else { highlightGeometry.AddGeometry(thisGeometry); combinedRect.Union(backgroundRect); } } if (highlightBrush != null) { Debug.Assert(highlightGeometry != null); highlightGeometry.FillRule = FillRule.Nonzero; dc.DrawGeometry(highlightBrush, null, highlightGeometry); } } private void _UpdateHighlightForeground(DrawingContext dc, ArrayList highlights) { foreach (FixedHighlight fh in highlights) { Brush fg = null; if (fh.HighlightType == FixedHighlightType.None) { #if NEVER // use this code if you want to see unrecognized highlights bg = Brushes.Yellow; #else continue; #endif } Glyphs g = fh.Glyphs; if (g == null) { continue; } Rect clipRect = fh.ComputeDesignRect(); if (clipRect == Rect.Empty) { continue; } GeneralTransform transform = fh.Element.TransformToAncestor(_page); Transform t = transform.AffineTransform; if (t != null) { dc.PushTransform(t); } else { dc.PushTransform(Transform.Identity); } dc.PushClip(new RectangleGeometry(clipRect)); if (fh.HighlightType == FixedHighlightType.TextSelection) { fg = SelectionHighlightInfo.ForegroundBrush; } else if (fh.HighlightType == FixedHighlightType.AnnotationHighlight) { fg = fh.ForegroundBrush; } // can add cases for new types of highlights GlyphRun gr = g.ToGlyphRun(); if (fg == null) { fg = g.Fill; } dc.PushGuidelineY1(gr.BaselineOrigin.Y); dc.PushClip(g.Clip); dc.DrawGlyphRun(fg, gr); dc.Pop(); // Glyphs clip dc.Pop(); // Guideline dc.Pop(); // clip dc.Pop(); // transform } } #endregion //------------------------------------------------------------------- // // private Properties // //---------------------------------------------------------------------- //-------------------------------------------------------------------- // // Private Methods // //--------------------------------------------------------------------- //-------------------------------------------------------------------- // // Private Fields // //--------------------------------------------------------------------- private FixedDocument _panel; private RubberbandSelector _rubberbandSelector; private FixedPage _page; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- //// Copyright (C) 2003 by Microsoft Corporation. All rights reserved. // // // Description: // Implements the HighlightVisual element for rendering highlight for fixed // document // // History: // 03/08/2004 - Eric Leese (eleese) - Created. // //--------------------------------------------------------------------------- namespace System.Windows.Documents { using MS.Internal; // DoubleUtil using MS.Internal.Documents; using MS.Utility; // ExceptionStringTable using System.ComponentModel; using System.Windows.Threading; // Dispatcher using System.Windows; // DependencyID etc. using System.Windows.Media; // Visual using System.Windows.Shapes; // Glyphs using System; using System.Collections; using System.IO; using System.Diagnostics; internal sealed class HighlightVisual : Adorner { //------------------------------------------------------------------- // // Constructors // //--------------------------------------------------------------------- #region Constructors ////// HighlightVisual construction /// /// FixedDocument where selection is taking place /// FixedPage that is being highlighted internal HighlightVisual(FixedDocument panel, FixedPage page) : base(page) { _panel = panel; _page = page; } #endregion Constructors //-------------------------------------------------------------------- // // Public Methods // //--------------------------------------------------------------------- //-------------------------------------------------------------------- // // Public Properties // //---------------------------------------------------------------------- //------------------------------------------------------------------- // // Public Events // //---------------------------------------------------------------------- //------------------------------------------------------------------- // // Protected Methods // //--------------------------------------------------------------------- #region Protected Methods protected override GeometryHitTestResult HitTestCore(GeometryHitTestParameters hitTestParameters) { return null; } protected override HitTestResult HitTestCore(PointHitTestParameters hitTestParameters) { return null; } ////// Draw highlight /// override protected void OnRender(DrawingContext dc) { #if DEBUG DocumentsTrace.FixedTextOM.Highlight.Trace(string.Format("HightlightVisual Rendering")); #endif if (_panel.Highlights.ContainsKey(_page)) { ArrayList highlights = _panel.Highlights[_page]; Size pageSize = _panel.ComputePageSize(_page); Rect clipRect = new Rect(new Point(0, 0), pageSize); dc.PushClip(new RectangleGeometry(clipRect)); if (highlights != null) { _UpdateHighlightBackground(dc, highlights); _UpdateHighlightForeground(dc, highlights); } dc.Pop(); //clip } if (_rubberbandSelector != null && _rubberbandSelector.Page == _page) { Rect r = _rubberbandSelector.SelectionRect; if (!r.IsEmpty) { dc.DrawRectangle(SelectionHighlightInfo.ObjectMaskBrush, null, r); } } } #endregion Protected Methods //------------------------------------------------------------------- // // Internal Methods // //---------------------------------------------------------------------- #region Internal Methods internal void InvalidateHighlights() { AdornerLayer al = AdornerLayer.GetAdornerLayer(_page); if (al == null) { return; } al.Update(_page); } internal void UpdateRubberbandSelection(RubberbandSelector selector) { _rubberbandSelector = selector; InvalidateHighlights(); } ////// Finds the HighlightVisual for this page. /// internal static HighlightVisual GetHighlightVisual(FixedPage page) { AdornerLayer al = AdornerLayer.GetAdornerLayer(page); HighlightVisual hv; if (al == null) { return null; } Adorner[] adorners = al.GetAdorners(page); if (adorners != null) { foreach (Adorner ad in adorners) { hv = ad as HighlightVisual; if (hv != null) { return hv; } } } return null; } #endregion Internal Methods #region private Methods private void _UpdateHighlightBackground(DrawingContext dc, ArrayList highlights) { Debug.Assert(highlights != null); PathGeometry highlightGeometry = null; Brush highlightBrush = null; Rect combinedRect = Rect.Empty; foreach (FixedHighlight fh in highlights) { Brush bg = null; if (fh.HighlightType == FixedHighlightType.None) { #if NEVER // use this code if you want to see unrecognized highlights bg = Brushes.Yellow; #else continue; #endif } Rect backgroundRect = fh.ComputeDesignRect(); if (backgroundRect == Rect.Empty) { continue; } GeneralTransform transform = fh.Element.TransformToAncestor(_page); // This is a workaround. We should really look into changing Transform t = transform.AffineTransform; if (t == null) { t = Transform.Identity; } // Inflate by 1 pixel on each side to have a better selection visual for continuous lines // backgroundRect.Inflate(1,1); Glyphs g = fh.Glyphs; if (fh.HighlightType == FixedHighlightType.TextSelection) { bg = (g == null) ? SelectionHighlightInfo.ObjectMaskBrush : SelectionHighlightInfo.BackgroundBrush; } else if (fh.HighlightType == FixedHighlightType.AnnotationHighlight) { bg = fh.BackgroundBrush; } // can add cases for new types of highlights if (fh.Element.Clip != null) { Rect clipRect = fh.Element.Clip.Bounds; backgroundRect.Intersect(clipRect); //thisGeometry = Geometry.Combine(thisGeometry, fh.Element.Clip, GeometryCombineMode.Intersect, t); } Geometry thisGeometry = new RectangleGeometry(backgroundRect); thisGeometry.Transform = t; backgroundRect = transform.TransformBounds(backgroundRect); // used to cut down on calls to Geometry.Combine for complex geometries // involving multiple non-intersecting paths Debug.Assert(bg != null); if (bg != highlightBrush || backgroundRect.Top > combinedRect.Bottom + .1 || backgroundRect.Bottom + .1 < combinedRect.Top || backgroundRect.Left > combinedRect.Right + .1 || backgroundRect.Right + .1 < combinedRect.Left) { if (highlightBrush != null) { Debug.Assert(highlightGeometry != null); highlightGeometry.FillRule = FillRule.Nonzero; dc.DrawGeometry(highlightBrush, null, highlightGeometry); } highlightBrush = bg; highlightGeometry = new PathGeometry(); highlightGeometry.AddGeometry(thisGeometry); combinedRect = backgroundRect; } else { highlightGeometry.AddGeometry(thisGeometry); combinedRect.Union(backgroundRect); } } if (highlightBrush != null) { Debug.Assert(highlightGeometry != null); highlightGeometry.FillRule = FillRule.Nonzero; dc.DrawGeometry(highlightBrush, null, highlightGeometry); } } private void _UpdateHighlightForeground(DrawingContext dc, ArrayList highlights) { foreach (FixedHighlight fh in highlights) { Brush fg = null; if (fh.HighlightType == FixedHighlightType.None) { #if NEVER // use this code if you want to see unrecognized highlights bg = Brushes.Yellow; #else continue; #endif } Glyphs g = fh.Glyphs; if (g == null) { continue; } Rect clipRect = fh.ComputeDesignRect(); if (clipRect == Rect.Empty) { continue; } GeneralTransform transform = fh.Element.TransformToAncestor(_page); Transform t = transform.AffineTransform; if (t != null) { dc.PushTransform(t); } else { dc.PushTransform(Transform.Identity); } dc.PushClip(new RectangleGeometry(clipRect)); if (fh.HighlightType == FixedHighlightType.TextSelection) { fg = SelectionHighlightInfo.ForegroundBrush; } else if (fh.HighlightType == FixedHighlightType.AnnotationHighlight) { fg = fh.ForegroundBrush; } // can add cases for new types of highlights GlyphRun gr = g.ToGlyphRun(); if (fg == null) { fg = g.Fill; } dc.PushGuidelineY1(gr.BaselineOrigin.Y); dc.PushClip(g.Clip); dc.DrawGlyphRun(fg, gr); dc.Pop(); // Glyphs clip dc.Pop(); // Guideline dc.Pop(); // clip dc.Pop(); // transform } } #endregion //------------------------------------------------------------------- // // private Properties // //---------------------------------------------------------------------- //-------------------------------------------------------------------- // // Private Methods // //--------------------------------------------------------------------- //-------------------------------------------------------------------- // // Private Fields // //--------------------------------------------------------------------- private FixedDocument _panel; private RubberbandSelector _rubberbandSelector; private FixedPage _page; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- MobileUserControlDesigner.cs
- AdditionalEntityFunctions.cs
- HierarchicalDataBoundControl.cs
- SQLSingleStorage.cs
- SystemColorTracker.cs
- XmlNotation.cs
- SiteMembershipCondition.cs
- RemoteArgument.cs
- ColumnResizeUndoUnit.cs
- Sql8ExpressionRewriter.cs
- SamlAssertion.cs
- PropertyContainer.cs
- ListControl.cs
- ValidationErrorCollection.cs
- SecurityElement.cs
- ServiceManager.cs
- XmlReflectionMember.cs
- PointAnimationUsingKeyFrames.cs
- ListContractAdapter.cs
- JoinCqlBlock.cs
- TabControlEvent.cs
- RetrieveVirtualItemEventArgs.cs
- CultureInfo.cs
- DataGridTextBoxColumn.cs
- BuildProvidersCompiler.cs
- OdbcConnectionOpen.cs
- HtmlForm.cs
- SudsCommon.cs
- ProgressChangedEventArgs.cs
- ClaimTypeRequirement.cs
- FormsAuthenticationTicket.cs
- ObjRef.cs
- ReflectionHelper.cs
- Condition.cs
- ConfigXmlElement.cs
- TypeAccessException.cs
- ValueChangedEventManager.cs
- RowType.cs
- PrintController.cs
- FixedTextPointer.cs
- RelatedEnd.cs
- TabRenderer.cs
- ProviderException.cs
- DataGridViewCellCollection.cs
- MembershipValidatePasswordEventArgs.cs
- IEnumerable.cs
- NavigatorOutput.cs
- CapabilitiesSection.cs
- UnicodeEncoding.cs
- ServiceHostingEnvironment.cs
- SettingsSection.cs
- GPRECTF.cs
- IteratorDescriptor.cs
- ItemsPanelTemplate.cs
- UrlPropertyAttribute.cs
- PlatformCulture.cs
- ProgressiveCrcCalculatingStream.cs
- VisualStates.cs
- _ConnectOverlappedAsyncResult.cs
- AxisAngleRotation3D.cs
- HttpResponse.cs
- StreamGeometry.cs
- RegexRunner.cs
- Expression.cs
- GeneralTransform3DTo2D.cs
- XmlUrlResolver.cs
- HMACMD5.cs
- ContentElement.cs
- IPHostEntry.cs
- ISessionStateStore.cs
- MLangCodePageEncoding.cs
- CanonicalFormWriter.cs
- DictionaryContent.cs
- AsyncPostBackErrorEventArgs.cs
- ToolStrip.cs
- ModuleBuilder.cs
- UserControlDocumentDesigner.cs
- _UriSyntax.cs
- MessageSmuggler.cs
- HybridDictionary.cs
- COM2FontConverter.cs
- RegularExpressionValidator.cs
- DataGridViewColumn.cs
- PassportAuthenticationModule.cs
- PkcsMisc.cs
- ToolBarPanel.cs
- GridViewDeleteEventArgs.cs
- AttachedPropertyDescriptor.cs
- FixedTextContainer.cs
- DataObject.cs
- StringAnimationUsingKeyFrames.cs
- Subtree.cs
- DomNameTable.cs
- TimelineCollection.cs
- SortedList.cs
- DataRowExtensions.cs
- SessionState.cs
- SelectionEditor.cs
- DataGridViewToolTip.cs
- ResourceExpression.cs