Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Framework / MS / Internal / PtsHost / PageVisual.cs / 1 / PageVisual.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // File: PageVisual.cs // // Description: Visual representing a PTS page. // // History: // 11/11/2003 : grzegorz - created. // //--------------------------------------------------------------------------- using System; using System.Diagnostics; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Windows; using System.Windows.Controls; using System.Windows.Media; using System.Windows.Threading; namespace MS.Internal.PtsHost { // --------------------------------------------------------------------- // Visual representing a PTS page. // --------------------------------------------------------------------- internal class PageVisual : DrawingVisual, IContentHost { // ------------------------------------------------------------------ // Create a visual representing a PTS page. // ----------------------------------------------------------------- internal PageVisual(FlowDocumentPage owner) { _owner = new WeakReference(owner); } // ------------------------------------------------------------------ // Set information about background that is necessary for rendering // process. // // backgroundBrush - The background brush used for background. // renderBounds - Render bounds of the visual. // ------------------------------------------------------------------ internal void DrawBackground(Brush backgroundBrush, Rect renderBounds) { if (_backgroundBrush != backgroundBrush || _renderBounds != renderBounds) { _backgroundBrush = backgroundBrush; _renderBounds = renderBounds; // Open DrawingContext and draw background. // If background is not set, Open will clean the render data, but it // will preserve visual children. using (DrawingContext dc = RenderOpen()) { if (_backgroundBrush != null) { dc.DrawRectangle(_backgroundBrush, null, _renderBounds); } else { dc.DrawRectangle(Brushes.Transparent, null, _renderBounds); } } } } // ----------------------------------------------------------------- // Get/Set visual child. // ------------------------------------------------------------------ internal Visual Child { get { VisualCollection vc = this.Children; Debug.Assert(vc.Count <= 1); return (vc.Count == 0) ? null : vc[0]; } set { VisualCollection vc = this.Children; Debug.Assert(vc.Count <= 1); if (vc.Count == 0) { vc.Add(value); } else if (vc[0] != value) { vc[0] = value; } // else Visual child is the same as already stored; do nothing. } } // ----------------------------------------------------------------- // Clear its DrawingContext // Opening and closing a DrawingContext, clears it. // ----------------------------------------------------------------- internal void ClearDrawingContext() { DrawingContext ctx = this.RenderOpen(); if(ctx != null) ctx.Close(); } //------------------------------------------------------------------- // // IContentHost Members // //-------------------------------------------------------------------- #region IContentHost Members ////// IInputElement IContentHost.InputHitTest(Point point) { IContentHost host = _owner.Target as IContentHost; if (host != null) { return host.InputHitTest(point); } return null; } ////// /// ReadOnlyCollection/// IContentHost.GetRectangles(ContentElement child) { IContentHost host = _owner.Target as IContentHost; if (host != null) { return host.GetRectangles(child); } return new ReadOnlyCollection (new List (0)); } /// /// IEnumerator/// IContentHost.HostedElements { get { IContentHost host = _owner.Target as IContentHost; if (host != null) { return host.HostedElements; } return null; } } /// /// void IContentHost.OnChildDesiredSizeChanged(UIElement child) { IContentHost host = _owner.Target as IContentHost; if (host != null) { host.OnChildDesiredSizeChanged(child); } } #endregion IContentHost Members // ----------------------------------------------------------------- // Reference to DocumentPage that owns this visual. // ------------------------------------------------------------------ private readonly WeakReference _owner; // ------------------------------------------------------------------ // Brush used for background rendering. // ----------------------------------------------------------------- private Brush _backgroundBrush; // ------------------------------------------------------------------ // Render bounds. // ----------------------------------------------------------------- private Rect _renderBounds; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // File: PageVisual.cs // // Description: Visual representing a PTS page. // // History: // 11/11/2003 : grzegorz - created. // //--------------------------------------------------------------------------- using System; using System.Diagnostics; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Windows; using System.Windows.Controls; using System.Windows.Media; using System.Windows.Threading; namespace MS.Internal.PtsHost { // --------------------------------------------------------------------- // Visual representing a PTS page. // --------------------------------------------------------------------- internal class PageVisual : DrawingVisual, IContentHost { // ------------------------------------------------------------------ // Create a visual representing a PTS page. // ----------------------------------------------------------------- internal PageVisual(FlowDocumentPage owner) { _owner = new WeakReference(owner); } // ------------------------------------------------------------------ // Set information about background that is necessary for rendering // process. // // backgroundBrush - The background brush used for background. // renderBounds - Render bounds of the visual. // ------------------------------------------------------------------ internal void DrawBackground(Brush backgroundBrush, Rect renderBounds) { if (_backgroundBrush != backgroundBrush || _renderBounds != renderBounds) { _backgroundBrush = backgroundBrush; _renderBounds = renderBounds; // Open DrawingContext and draw background. // If background is not set, Open will clean the render data, but it // will preserve visual children. using (DrawingContext dc = RenderOpen()) { if (_backgroundBrush != null) { dc.DrawRectangle(_backgroundBrush, null, _renderBounds); } else { dc.DrawRectangle(Brushes.Transparent, null, _renderBounds); } } } } // ----------------------------------------------------------------- // Get/Set visual child. // ------------------------------------------------------------------ internal Visual Child { get { VisualCollection vc = this.Children; Debug.Assert(vc.Count <= 1); return (vc.Count == 0) ? null : vc[0]; } set { VisualCollection vc = this.Children; Debug.Assert(vc.Count <= 1); if (vc.Count == 0) { vc.Add(value); } else if (vc[0] != value) { vc[0] = value; } // else Visual child is the same as already stored; do nothing. } } // ----------------------------------------------------------------- // Clear its DrawingContext // Opening and closing a DrawingContext, clears it. // ----------------------------------------------------------------- internal void ClearDrawingContext() { DrawingContext ctx = this.RenderOpen(); if(ctx != null) ctx.Close(); } //------------------------------------------------------------------- // // IContentHost Members // //-------------------------------------------------------------------- #region IContentHost Members ////// /// IInputElement IContentHost.InputHitTest(Point point) { IContentHost host = _owner.Target as IContentHost; if (host != null) { return host.InputHitTest(point); } return null; } ////// /// ReadOnlyCollection/// IContentHost.GetRectangles(ContentElement child) { IContentHost host = _owner.Target as IContentHost; if (host != null) { return host.GetRectangles(child); } return new ReadOnlyCollection (new List (0)); } /// /// IEnumerator/// IContentHost.HostedElements { get { IContentHost host = _owner.Target as IContentHost; if (host != null) { return host.HostedElements; } return null; } } /// /// void IContentHost.OnChildDesiredSizeChanged(UIElement child) { IContentHost host = _owner.Target as IContentHost; if (host != null) { host.OnChildDesiredSizeChanged(child); } } #endregion IContentHost Members // ----------------------------------------------------------------- // Reference to DocumentPage that owns this visual. // ------------------------------------------------------------------ private readonly WeakReference _owner; // ------------------------------------------------------------------ // Brush used for background rendering. // ----------------------------------------------------------------- private Brush _backgroundBrush; // ------------------------------------------------------------------ // Render bounds. // ----------------------------------------------------------------- private Rect _renderBounds; } } // 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
- WebConfigurationManager.cs
- ImageCodecInfo.cs
- CountdownEvent.cs
- basecomparevalidator.cs
- NCryptSafeHandles.cs
- ScriptingAuthenticationServiceSection.cs
- NamedObject.cs
- _ProxyRegBlob.cs
- TreeNodeSelectionProcessor.cs
- StoryFragments.cs
- TreeNode.cs
- DocumentOrderQuery.cs
- SoapCodeExporter.cs
- SspiSecurityTokenProvider.cs
- WebBrowserProgressChangedEventHandler.cs
- PasswordPropertyTextAttribute.cs
- TabItem.cs
- SqlDataSourceCache.cs
- TreeNodeBindingCollection.cs
- MenuItemStyleCollection.cs
- PreProcessInputEventArgs.cs
- PointLightBase.cs
- RSAPKCS1SignatureFormatter.cs
- TreeView.cs
- Rectangle.cs
- HiddenFieldPageStatePersister.cs
- FullTextBreakpoint.cs
- GuidelineCollection.cs
- Frame.cs
- BitmapImage.cs
- EmptyControlCollection.cs
- LinkButton.cs
- EntityTypeEmitter.cs
- Deserializer.cs
- CompiledWorkflowDefinitionContext.cs
- Error.cs
- SectionInput.cs
- Unit.cs
- AutoFocusStyle.xaml.cs
- PointCollection.cs
- TypeResolver.cs
- OrderedDictionary.cs
- ExtenderProvidedPropertyAttribute.cs
- Thickness.cs
- BaseValidator.cs
- NetMsmqBinding.cs
- bindurihelper.cs
- DataControlLinkButton.cs
- MetadataArtifactLoaderFile.cs
- QilStrConcat.cs
- TableLayoutPanel.cs
- SmtpFailedRecipientsException.cs
- StaticFileHandler.cs
- AdministrationHelpers.cs
- SchemaImporterExtensionElementCollection.cs
- DocumentViewerHelper.cs
- ConfigurationLocation.cs
- TableRowCollection.cs
- CollectionConverter.cs
- ProcessModule.cs
- ControlCachePolicy.cs
- COSERVERINFO.cs
- Base64Stream.cs
- BeginCreateSecurityTokenRequest.cs
- AdjustableArrowCap.cs
- sqlpipe.cs
- ModelTypeConverter.cs
- RequestTimeoutManager.cs
- TemplatedWizardStep.cs
- SiteMapProvider.cs
- AttributeAction.cs
- SourceChangedEventArgs.cs
- AuthStoreRoleProvider.cs
- OletxVolatileEnlistment.cs
- BitmapEffectvisualstate.cs
- UnsafeNativeMethods.cs
- Attachment.cs
- SystemResources.cs
- VariableExpressionConverter.cs
- ObjectAnimationUsingKeyFrames.cs
- DataBoundLiteralControl.cs
- GeometryValueSerializer.cs
- ReliableSession.cs
- RtType.cs
- MetabaseSettings.cs
- TreeNodeConverter.cs
- Peer.cs
- TdsValueSetter.cs
- IgnoreSectionHandler.cs
- DataGridViewComboBoxCell.cs
- XmlReflectionMember.cs
- ManualResetEventSlim.cs
- WebPartConnectionsConnectVerb.cs
- AlternateView.cs
- WindowAutomationPeer.cs
- DataQuery.cs
- ObjectListCommandCollection.cs
- METAHEADER.cs
- FlowLayoutPanel.cs
- UnitySerializationHolder.cs