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 / Effects / DropShadowBitmapEffect.cs / 1 / DropShadowBitmapEffect.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, 2005 // // File: BitmapEffectDropShadow.cs //----------------------------------------------------------------------------- #region Using directives using System; using System.Collections.Generic; using System.Text; using System.Runtime.InteropServices; using MS.Internal.PresentationCore; using System.Security; #endregion namespace System.Windows.Media.Effects { ////// The class definition for DropShadowBitmapEffect /// public partial class DropShadowBitmapEffect { ////// Constructor /// public DropShadowBitmapEffect() { } ////// Creates the unmanaged effect handle /// unsafe protected override SafeHandle CreateUnmanagedEffect() { return Create(new Guid(0x459a3fbe, 0xd8ac, 0x4692, 0x87, 0x4b, 0x7a, 0x26, 0x57, 0x15, 0xaa, 0x16)); } ////// /// Update (propagetes) properties to the unmanaged effect /// ////// This method demands permission because effects should not be run /// in partial trust. /// /// SecurityCritical - because SetValue has a link demand /// SecutiryTreatAsSafe - because it demans UIWindow permission /// [SecurityCritical, SecurityTreatAsSafe] protected override void UpdateUnmanagedPropertyState(SafeHandle unmanagedEffect) { SecurityHelper.DemandUIWindowPermission(); BitmapEffect.SetValue(unmanagedEffect, "Color", this.Color); BitmapEffect.SetValue(unmanagedEffect, "ShadowDepth", this.ShadowDepth); BitmapEffect.SetValue(unmanagedEffect, "Direction", this.Direction); BitmapEffect.SetValue(unmanagedEffect, "Noise", this.Noise); BitmapEffect.SetValue(unmanagedEffect, "Opacity", this.Opacity); BitmapEffect.SetValue(unmanagedEffect, "Softness", this.Softness); } ////// An ImageEffect can be used to emulate a DropShadowBitmapEffect with certain restrictions. This /// method returns true when it is possible to emulate the DropShadowBitmapEffect using an ImageEffect. /// internal override bool CanBeEmulatedUsingEffectPipeline() { return (Noise == 0.0); } ////// Returns a ImageEffect that emulates this DropShadowBitmapEffect. /// internal override Effect GetEmulatingEffect() { if (_imageEffectEmulation == null) { _imageEffectEmulation = new DropShadowEffect(); } if (_imageEffectEmulation.Color != Color) { _imageEffectEmulation.Color = Color; } // The limits on ShadowDepth preserve existing behavior. // A scale transform can scale the shadow depth to exceed 50.0, // and this behavior is also handled correctly in the unmanaged layer. if (_imageEffectEmulation.ShadowDepth != ShadowDepth) { if (ShadowDepth >= 50.0) { _imageEffectEmulation.ShadowDepth = 50.0; } else if (ShadowDepth < 0.0) { _imageEffectEmulation.ShadowDepth = 0.0; } else { _imageEffectEmulation.ShadowDepth = ShadowDepth; } } if (_imageEffectEmulation.Direction != Direction) { _imageEffectEmulation.Direction = Direction; } if (_imageEffectEmulation.Opacity != Opacity) { if (Opacity >= 1.0) { _imageEffectEmulation.Opacity = 1.0; } else if (Opacity <= 0.0) { _imageEffectEmulation.Opacity = 0.0; } else { _imageEffectEmulation.Opacity = Opacity; } } if (_imageEffectEmulation.BlurRadius / _MAX_EMULATED_BLUR_RADIUS != Softness) { if (Softness >= 1.0) { _imageEffectEmulation.BlurRadius = _MAX_EMULATED_BLUR_RADIUS; } else if (Softness <= 0.0) { _imageEffectEmulation.BlurRadius = 0.0; } else { _imageEffectEmulation.BlurRadius = _MAX_EMULATED_BLUR_RADIUS * Softness; } } _imageEffectEmulation.RenderingBias = RenderingBias.Performance; return _imageEffectEmulation; } DropShadowEffect _imageEffectEmulation; private const double _MAX_EMULATED_BLUR_RADIUS = 25.0; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, 2005 // // File: BitmapEffectDropShadow.cs //----------------------------------------------------------------------------- #region Using directives using System; using System.Collections.Generic; using System.Text; using System.Runtime.InteropServices; using MS.Internal.PresentationCore; using System.Security; #endregion namespace System.Windows.Media.Effects { ////// The class definition for DropShadowBitmapEffect /// public partial class DropShadowBitmapEffect { ////// Constructor /// public DropShadowBitmapEffect() { } ////// Creates the unmanaged effect handle /// unsafe protected override SafeHandle CreateUnmanagedEffect() { return Create(new Guid(0x459a3fbe, 0xd8ac, 0x4692, 0x87, 0x4b, 0x7a, 0x26, 0x57, 0x15, 0xaa, 0x16)); } ////// /// Update (propagetes) properties to the unmanaged effect /// ////// This method demands permission because effects should not be run /// in partial trust. /// /// SecurityCritical - because SetValue has a link demand /// SecutiryTreatAsSafe - because it demans UIWindow permission /// [SecurityCritical, SecurityTreatAsSafe] protected override void UpdateUnmanagedPropertyState(SafeHandle unmanagedEffect) { SecurityHelper.DemandUIWindowPermission(); BitmapEffect.SetValue(unmanagedEffect, "Color", this.Color); BitmapEffect.SetValue(unmanagedEffect, "ShadowDepth", this.ShadowDepth); BitmapEffect.SetValue(unmanagedEffect, "Direction", this.Direction); BitmapEffect.SetValue(unmanagedEffect, "Noise", this.Noise); BitmapEffect.SetValue(unmanagedEffect, "Opacity", this.Opacity); BitmapEffect.SetValue(unmanagedEffect, "Softness", this.Softness); } ////// An ImageEffect can be used to emulate a DropShadowBitmapEffect with certain restrictions. This /// method returns true when it is possible to emulate the DropShadowBitmapEffect using an ImageEffect. /// internal override bool CanBeEmulatedUsingEffectPipeline() { return (Noise == 0.0); } ////// Returns a ImageEffect that emulates this DropShadowBitmapEffect. /// internal override Effect GetEmulatingEffect() { if (_imageEffectEmulation == null) { _imageEffectEmulation = new DropShadowEffect(); } if (_imageEffectEmulation.Color != Color) { _imageEffectEmulation.Color = Color; } // The limits on ShadowDepth preserve existing behavior. // A scale transform can scale the shadow depth to exceed 50.0, // and this behavior is also handled correctly in the unmanaged layer. if (_imageEffectEmulation.ShadowDepth != ShadowDepth) { if (ShadowDepth >= 50.0) { _imageEffectEmulation.ShadowDepth = 50.0; } else if (ShadowDepth < 0.0) { _imageEffectEmulation.ShadowDepth = 0.0; } else { _imageEffectEmulation.ShadowDepth = ShadowDepth; } } if (_imageEffectEmulation.Direction != Direction) { _imageEffectEmulation.Direction = Direction; } if (_imageEffectEmulation.Opacity != Opacity) { if (Opacity >= 1.0) { _imageEffectEmulation.Opacity = 1.0; } else if (Opacity <= 0.0) { _imageEffectEmulation.Opacity = 0.0; } else { _imageEffectEmulation.Opacity = Opacity; } } if (_imageEffectEmulation.BlurRadius / _MAX_EMULATED_BLUR_RADIUS != Softness) { if (Softness >= 1.0) { _imageEffectEmulation.BlurRadius = _MAX_EMULATED_BLUR_RADIUS; } else if (Softness <= 0.0) { _imageEffectEmulation.BlurRadius = 0.0; } else { _imageEffectEmulation.BlurRadius = _MAX_EMULATED_BLUR_RADIUS * Softness; } } _imageEffectEmulation.RenderingBias = RenderingBias.Performance; return _imageEffectEmulation; } DropShadowEffect _imageEffectEmulation; private const double _MAX_EMULATED_BLUR_RADIUS = 25.0; } } // 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
- SQLBoolean.cs
- X509Certificate2Collection.cs
- CodeTypeMemberCollection.cs
- ProcessHostConfigUtils.cs
- DriveInfo.cs
- TextParaClient.cs
- Pair.cs
- ExpressionBuilder.cs
- Header.cs
- ObjectDataSourceEventArgs.cs
- KeyToListMap.cs
- CompressStream.cs
- BrowserTree.cs
- CustomCredentialPolicy.cs
- ConnectionPoolManager.cs
- XmlMembersMapping.cs
- MatchingStyle.cs
- SubMenuStyle.cs
- StrongNameUtility.cs
- MenuEventArgs.cs
- DataGridTextBoxColumn.cs
- SymbolTable.cs
- BoundingRectTracker.cs
- VirtualDirectoryMapping.cs
- FrugalList.cs
- StreamUpdate.cs
- MessageSecurityTokenVersion.cs
- UrlPath.cs
- InstallHelper.cs
- ToolStripPanelRow.cs
- WebControlParameterProxy.cs
- DynamicPropertyHolder.cs
- ObjectListDataBindEventArgs.cs
- DataControlFieldHeaderCell.cs
- WebPartVerbCollection.cs
- EntityDataSourceContextDisposingEventArgs.cs
- EventQueueState.cs
- ReadOnlyDataSource.cs
- NameValuePair.cs
- EUCJPEncoding.cs
- DesignerUtils.cs
- SqlConnectionPoolProviderInfo.cs
- DataServiceStreamProviderWrapper.cs
- KoreanCalendar.cs
- TextTreeDeleteContentUndoUnit.cs
- ReadingWritingEntityEventArgs.cs
- Scheduling.cs
- _LazyAsyncResult.cs
- StandardBindingReliableSessionElement.cs
- WebDisplayNameAttribute.cs
- StickyNoteHelper.cs
- EmptyQuery.cs
- GeneralTransformGroup.cs
- XmlAttributeOverrides.cs
- TrayIconDesigner.cs
- ControllableStoryboardAction.cs
- NetworkAddressChange.cs
- SkinBuilder.cs
- DefaultPrintController.cs
- MetadataSerializer.cs
- PersonalizationStateQuery.cs
- PartialCachingAttribute.cs
- FormsAuthenticationUserCollection.cs
- LocalizationCodeDomSerializer.cs
- CustomErrorsSectionWrapper.cs
- FormViewUpdatedEventArgs.cs
- RepeatInfo.cs
- BmpBitmapEncoder.cs
- ConnectionManagementSection.cs
- mediaeventshelper.cs
- SafeSecurityHelper.cs
- TextServicesManager.cs
- ActivityExecutorOperation.cs
- ObjectMaterializedEventArgs.cs
- DotNetATv1WindowsLogEntryDeserializer.cs
- RegistryPermission.cs
- MediaSystem.cs
- TransformerInfo.cs
- x509utils.cs
- ExpressionBuilderCollection.cs
- CatalogPartCollection.cs
- ToolStripProgressBar.cs
- ProxyGenerationError.cs
- ProjectionPath.cs
- XmlUtilWriter.cs
- UnicastIPAddressInformationCollection.cs
- AspNetHostingPermission.cs
- PrintPreviewControl.cs
- DataBindEngine.cs
- TextSchema.cs
- Int16Storage.cs
- TextPenaltyModule.cs
- RadioButtonRenderer.cs
- FixedHighlight.cs
- SortQuery.cs
- PerformanceCounterPermission.cs
- XComponentModel.cs
- TargetParameterCountException.cs
- CounterSample.cs
- SafeNativeMethodsCLR.cs