Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Core / CSharp / System / Windows / Media / DrawingImage.cs / 1 / DrawingImage.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: DrawingImage class // An ImageSource with a Drawing for content // // // History: // 05/26/2005 : jordanpa - Created it // //--------------------------------------------------------------------------- using MS.Internal; using System; using System.ComponentModel; using System.Diagnostics; using System.Runtime.InteropServices; using System.Windows; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Media.Composition; using System.Windows.Media.Imaging; namespace System.Windows.Media { ////// The class definition for DrawingImage /// public sealed partial class DrawingImage : ImageSource { ////// Default DrawingImage ctor /// public DrawingImage() { } ////// DrawingImage ctor that takes a Drawing /// /// The content of the DrawingImage public DrawingImage(Drawing drawing) { Drawing = drawing; } ////// Width of the DrawingImage /// public override double Width { get { ReadPreamble(); return Size.Width; } } ////// Height of the DrawingImage /// public override double Height { get { ReadPreamble(); return Size.Height; } } ////// Get the Metadata of the DrawingImage /// public override ImageMetadata Metadata { get { ReadPreamble(); // DrawingImage does not have any metadata currently defined. return null; } } ////// Size for the DrawingImage /// internal override Size Size { get { Drawing drawing = Drawing; if (drawing != null) { Size size = drawing.GetBounds().Size; if (!size.IsEmpty) { return size; } else { return new Size(); } } else { return new Size(); } } } ////// Precompute is called during the frame preparation phase. Derived classes /// typically check if the brush requires realizations during this phase. /// internal override void Precompute() { Drawing drawing = Drawing; _requiresRealizationUpdates = false; if (drawing != null) { drawing.PrecomputeCore(); _requiresRealizationUpdates = drawing.RequiresRealizationUpdates; } } ////// Checks if realization updates are requried for this resource. /// internal override bool RequiresRealizationUpdates { get { return _requiresRealizationUpdates; } } ////// Derived classes must override this method and update realizations on dependent /// resources if required. /// internal override void UpdateRealizations(RealizationContext ctx) { if (_requiresRealizationUpdates) { Drawing drawing = Drawing; Debug.Assert(drawing != null); // Otherwise _requiresRealizationUpdates would be false. drawing.UpdateRealizations(ctx); } } ////// This node can introduce graphness /// internal override bool CanIntroduceGraphness() { return true; } private bool _requiresRealizationUpdates; } } // 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. // // // // Description: DrawingImage class // An ImageSource with a Drawing for content // // // History: // 05/26/2005 : jordanpa - Created it // //--------------------------------------------------------------------------- using MS.Internal; using System; using System.ComponentModel; using System.Diagnostics; using System.Runtime.InteropServices; using System.Windows; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Media.Composition; using System.Windows.Media.Imaging; namespace System.Windows.Media { ////// The class definition for DrawingImage /// public sealed partial class DrawingImage : ImageSource { ////// Default DrawingImage ctor /// public DrawingImage() { } ////// DrawingImage ctor that takes a Drawing /// /// The content of the DrawingImage public DrawingImage(Drawing drawing) { Drawing = drawing; } ////// Width of the DrawingImage /// public override double Width { get { ReadPreamble(); return Size.Width; } } ////// Height of the DrawingImage /// public override double Height { get { ReadPreamble(); return Size.Height; } } ////// Get the Metadata of the DrawingImage /// public override ImageMetadata Metadata { get { ReadPreamble(); // DrawingImage does not have any metadata currently defined. return null; } } ////// Size for the DrawingImage /// internal override Size Size { get { Drawing drawing = Drawing; if (drawing != null) { Size size = drawing.GetBounds().Size; if (!size.IsEmpty) { return size; } else { return new Size(); } } else { return new Size(); } } } ////// Precompute is called during the frame preparation phase. Derived classes /// typically check if the brush requires realizations during this phase. /// internal override void Precompute() { Drawing drawing = Drawing; _requiresRealizationUpdates = false; if (drawing != null) { drawing.PrecomputeCore(); _requiresRealizationUpdates = drawing.RequiresRealizationUpdates; } } ////// Checks if realization updates are requried for this resource. /// internal override bool RequiresRealizationUpdates { get { return _requiresRealizationUpdates; } } ////// Derived classes must override this method and update realizations on dependent /// resources if required. /// internal override void UpdateRealizations(RealizationContext ctx) { if (_requiresRealizationUpdates) { Drawing drawing = Drawing; Debug.Assert(drawing != null); // Otherwise _requiresRealizationUpdates would be false. drawing.UpdateRealizations(ctx); } } ////// This node can introduce graphness /// internal override bool CanIntroduceGraphness() { return true; } private bool _requiresRealizationUpdates; } } // 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
- DigestTraceRecordHelper.cs
- CertificateElement.cs
- COAUTHIDENTITY.cs
- XmlEncodedRawTextWriter.cs
- WpfKnownType.cs
- XPathDocument.cs
- CqlBlock.cs
- COSERVERINFO.cs
- CodeDOMUtility.cs
- EditingCommands.cs
- CommandManager.cs
- ItemCheckedEvent.cs
- PerspectiveCamera.cs
- documentsequencetextview.cs
- AsymmetricSignatureFormatter.cs
- SchemaExporter.cs
- DateTimeOffsetStorage.cs
- LinearQuaternionKeyFrame.cs
- SpecialNameAttribute.cs
- BindingParameterCollection.cs
- ToolTipService.cs
- Mutex.cs
- FrameworkElement.cs
- XamlFxTrace.cs
- InkCanvasSelectionAdorner.cs
- ByteStreamMessage.cs
- HtmlTableCellCollection.cs
- CultureMapper.cs
- CompensationDesigner.cs
- FileDialog.cs
- PriorityQueue.cs
- formatter.cs
- DesignerActionHeaderItem.cs
- Message.cs
- ToolStripSplitStackLayout.cs
- JavaScriptString.cs
- MessageBox.cs
- CompensatableTransactionScopeActivityDesigner.cs
- FrameworkContentElement.cs
- BezierSegment.cs
- ProfileProvider.cs
- M3DUtil.cs
- ReadOnlyDictionary.cs
- PropertyEmitter.cs
- RepeatInfo.cs
- CharAnimationBase.cs
- QilScopedVisitor.cs
- PriorityQueue.cs
- OleDbConnectionInternal.cs
- HuffmanTree.cs
- SqlUserDefinedTypeAttribute.cs
- HttpsTransportElement.cs
- AppDomainResourcePerfCounters.cs
- URLAttribute.cs
- HandlerFactoryWrapper.cs
- CriticalHandle.cs
- ProxyWebPartManager.cs
- ProcessModuleCollection.cs
- BindableAttribute.cs
- ResourcesGenerator.cs
- AccessDataSource.cs
- CustomValidator.cs
- printdlgexmarshaler.cs
- EntityKey.cs
- PtsHelper.cs
- RootBrowserWindowAutomationPeer.cs
- XmlPreloadedResolver.cs
- ContentFilePart.cs
- Array.cs
- DataGridViewColumnStateChangedEventArgs.cs
- DateTimeOffsetConverter.cs
- ModelProperty.cs
- XPathSingletonIterator.cs
- Token.cs
- __Filters.cs
- PerformanceCounterTraceRecord.cs
- ServiceNameCollection.cs
- _IPv4Address.cs
- EncoderBestFitFallback.cs
- ServiceMemoryGates.cs
- PublishLicense.cs
- SaveFileDialog.cs
- ExpressionParser.cs
- FirstQueryOperator.cs
- NamespaceTable.cs
- VisualBrush.cs
- RawUIStateInputReport.cs
- PerformanceCounterPermission.cs
- SystemUnicastIPAddressInformation.cs
- TemplateInstanceAttribute.cs
- ListViewGroupItemCollection.cs
- WebPartDescriptionCollection.cs
- TypeSystem.cs
- MarshalDirectiveException.cs
- DockPanel.cs
- WebPartHelpVerb.cs
- BuilderInfo.cs
- ContextDataSource.cs
- SvcMapFileSerializer.cs
- ServerValidateEventArgs.cs