Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / 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
- OdbcConnectionFactory.cs
- PropVariant.cs
- XmlValueConverter.cs
- StatusBar.cs
- FillBehavior.cs
- safelinkcollection.cs
- TreeViewItem.cs
- DiscardableAttribute.cs
- Matrix.cs
- MatrixCamera.cs
- UnsafeNativeMethods.cs
- ApplicationCommands.cs
- LayoutEngine.cs
- InvokeWebService.cs
- MailHeaderInfo.cs
- SectionVisual.cs
- MSG.cs
- RawStylusInputReport.cs
- SiteMap.cs
- AddingNewEventArgs.cs
- ExpressionBuilder.cs
- WindowsEditBoxRange.cs
- MaskDescriptor.cs
- WebBrowserContainer.cs
- DataSetMappper.cs
- WindowsTokenRoleProvider.cs
- CLRBindingWorker.cs
- TraceListeners.cs
- HtmlInputCheckBox.cs
- RealizationDrawingContextWalker.cs
- MaterialCollection.cs
- TextParagraphView.cs
- DocumentXPathNavigator.cs
- EditingMode.cs
- OleDbParameterCollection.cs
- CustomAttributeFormatException.cs
- TriggerCollection.cs
- Transform3DGroup.cs
- Validator.cs
- WindowsImpersonationContext.cs
- DataTableNewRowEvent.cs
- Bits.cs
- SmtpLoginAuthenticationModule.cs
- Configuration.cs
- XPathAncestorQuery.cs
- DefaultExpression.cs
- EndpointPerformanceCounters.cs
- BrowserDefinitionCollection.cs
- InheritanceContextHelper.cs
- ViewCellSlot.cs
- XPathNodeInfoAtom.cs
- _TransmitFileOverlappedAsyncResult.cs
- DataColumnChangeEvent.cs
- ManagementException.cs
- ParserContext.cs
- JobDuplex.cs
- IsolatedStorageFile.cs
- Rules.cs
- followingsibling.cs
- ImmutableDispatchRuntime.cs
- TypeUtil.cs
- Size3DConverter.cs
- SecurityManager.cs
- ToolStripStatusLabel.cs
- WebMessageEncodingElement.cs
- DbConnectionStringCommon.cs
- TextCollapsingProperties.cs
- LogicalCallContext.cs
- NativeMethods.cs
- Model3D.cs
- SetStateEventArgs.cs
- AssemblyInfo.cs
- CreateInstanceBinder.cs
- Color.cs
- SimpleMailWebEventProvider.cs
- DrawingServices.cs
- OpenTypeLayout.cs
- VectorAnimationBase.cs
- DataKeyCollection.cs
- NamedPipeHostedTransportConfiguration.cs
- RegexBoyerMoore.cs
- XmlSchemaAnnotated.cs
- EnumerableCollectionView.cs
- TreeViewHitTestInfo.cs
- SizeIndependentAnimationStorage.cs
- _ConnectStream.cs
- OdbcConnectionStringbuilder.cs
- LineBreak.cs
- CornerRadius.cs
- smtpconnection.cs
- CodeArrayCreateExpression.cs
- ZipIOZip64EndOfCentralDirectoryLocatorBlock.cs
- CharEnumerator.cs
- HttpStreams.cs
- JavaScriptObjectDeserializer.cs
- PictureBoxDesigner.cs
- SeekStoryboard.cs
- List.cs
- AssertSection.cs
- DefaultWorkflowSchedulerService.cs