Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Documents / HighlightVisual.cs / 1305600 / 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
- DateTime.cs
- RSACryptoServiceProvider.cs
- VerticalAlignConverter.cs
- Attributes.cs
- BindingsCollection.cs
- ELinqQueryState.cs
- SpellerInterop.cs
- EpmSourceTree.cs
- DropSource.cs
- IconHelper.cs
- StyleXamlParser.cs
- TypeSystemHelpers.cs
- MetabaseServerConfig.cs
- ControlFilterExpression.cs
- RowToParametersTransformer.cs
- CompilerParameters.cs
- QilReference.cs
- SqlTransaction.cs
- TopClause.cs
- TaskDesigner.cs
- ProfileService.cs
- AspCompat.cs
- PackagePartCollection.cs
- WriteStateInfoBase.cs
- sapiproxy.cs
- MembershipPasswordException.cs
- StatementContext.cs
- DesignTimeData.cs
- mda.cs
- LazyTextWriterCreator.cs
- UIntPtr.cs
- EventListener.cs
- TableRow.cs
- MenuCommand.cs
- CngUIPolicy.cs
- WaitForChangedResult.cs
- ReadOnlyCollection.cs
- AttributeAction.cs
- ViewPort3D.cs
- NeutralResourcesLanguageAttribute.cs
- AtomServiceDocumentSerializer.cs
- PersistenceTask.cs
- GeneratedView.cs
- InlinedLocationReference.cs
- COM2FontConverter.cs
- SectionInformation.cs
- AssemblyGen.cs
- DoubleAnimationUsingPath.cs
- IntegerValidatorAttribute.cs
- LineSegment.cs
- UpdateExpressionVisitor.cs
- BitmapEffectDrawing.cs
- CryptoConfig.cs
- EventLogEntry.cs
- MouseEventArgs.cs
- JsonServiceDocumentSerializer.cs
- DurationConverter.cs
- ArgumentsParser.cs
- PeerObject.cs
- RecordConverter.cs
- ChangeInterceptorAttribute.cs
- OracleParameter.cs
- SimpleMailWebEventProvider.cs
- SortDescriptionCollection.cs
- MemberAccessException.cs
- TiffBitmapDecoder.cs
- Quaternion.cs
- ActivityBuilderXamlWriter.cs
- FileLoadException.cs
- MetabaseSettings.cs
- PropertyChangeTracker.cs
- WebPartEditorCancelVerb.cs
- DiagnosticEventProvider.cs
- ListViewItem.cs
- DrawingContext.cs
- Drawing.cs
- DataSourceCollectionBase.cs
- log.cs
- XmlArrayAttribute.cs
- CAGDesigner.cs
- BitmapCache.cs
- ScrollBarRenderer.cs
- SessionParameter.cs
- LinqExpressionNormalizer.cs
- DiscardableAttribute.cs
- InstanceHandleConflictException.cs
- MouseEventArgs.cs
- ApplicationActivator.cs
- SrgsSubset.cs
- AppearanceEditorPart.cs
- SSmlParser.cs
- DbConnectionHelper.cs
- MiniParameterInfo.cs
- BaseAutoFormat.cs
- UserControl.cs
- PauseStoryboard.cs
- ContourSegment.cs
- OrCondition.cs
- DataGridView.cs
- MouseEvent.cs