Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media / LinearGradientBrush.cs / 1305600 / LinearGradientBrush.cs
//---------------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // Description: This file contains the implementation of LinearGradientBrush. // The LinearGradientBrush is a GradientBrush which defines its // Gradient as a linear interpolation between two parallel lines. // // History: // 05/07/2003 : [....] - Created it. // 09/21/2004 : timothyc - Added GradientStopCollection constructors. // //--------------------------------------------------------------------------- using MS.Internal; using MS.Internal.PresentationCore; using System; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Diagnostics; using System.Reflection; using System.Windows; using System.Windows.Media; using System.Windows.Media.Animation; using System.Runtime.InteropServices; using System.Windows.Media.Composition; using System.Security; using System.Security.Permissions; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows.Media { ////// LinearGradientBrush - This GradientBrush defines its Gradient as an interpolation /// between two parallel lines. /// public sealed partial class LinearGradientBrush : GradientBrush { #region Constructors ////// Default constructor for LinearGradientBrush. The resulting brush has no content. /// public LinearGradientBrush() : base() { } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with GradientStops specified at offset 0.0 and /// 1.0. The StartPoint is set to (0,0) and the EndPoint is derived from the angle /// such that 1) the line containing the StartPoint and EndPoint is 'angle' degrees /// from the horizontal in the direction of positive Y, and 2) the EndPoint lies on /// the perimeter of the unit circle. /// /// The Color at offset 0.0. /// The Color at offset 1.0. /// The angle, in degrees, that the gradient will be away from horizontal. public LinearGradientBrush(Color startColor, Color endColor, double angle) : base() { EndPoint = EndPointFromAngle(angle); GradientStops.Add(new GradientStop(startColor, 0.0)); GradientStops.Add(new GradientStop(endColor, 1.0)); } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with two colors at the specified start and end points. /// /// The Color at offset 0.0. /// The Color at offset 1.0. /// The start point /// The end point public LinearGradientBrush(Color startColor, Color endColor, Point startPoint, Point endPoint) : base() { StartPoint = startPoint; EndPoint = endPoint; GradientStops.Add(new GradientStop(startColor, 0.0)); GradientStops.Add(new GradientStop(endColor, 1.0)); } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with GradientStops set to the passed-in collection. /// /// GradientStopCollection to set on this brush. public LinearGradientBrush(GradientStopCollection gradientStopCollection) : base (gradientStopCollection) { } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with GradientStops set to the passed-in collection. /// Constructs a LinearGradientBrush with GradientStops specified at offset 0.0 and /// 1.0. The StartPoint is set to (0,0) and the EndPoint is derived from the angle /// such that 1) the line containing the StartPoint and EndPoint is 'angle' degrees /// from the horizontal in the direction of positive Y, and 2) the EndPoint lies on /// the perimeter of the unit circle. /// /// GradientStopCollection to set on this brush. /// The angle, in degrees, that the gradient will be away from horizontal. public LinearGradientBrush(GradientStopCollection gradientStopCollection, double angle) : base (gradientStopCollection) { EndPoint = EndPointFromAngle(angle); } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with GradientStops set to the passed-in collection. /// The StartPoint and EndPoint are set to the specified startPoint and endPoint. /// /// GradientStopCollection to set on this brush. /// The start point /// The end point public LinearGradientBrush(GradientStopCollection gradientStopCollection, Point startPoint, Point endPoint) : base (gradientStopCollection) { StartPoint = startPoint; EndPoint = endPoint; } #endregion Constructors ////// Critical: This code accesses unsafe code blocks /// TreatAsSafe: This code does is safe to call but needs to be verified for correctness /// [SecurityCritical, SecurityTreatAsSafe] private void ManualUpdateResource(DUCE.Channel channel, bool skipOnChannelCheck) { // If we're told we can skip the channel check, then we must be on channel Debug.Assert(!skipOnChannelCheck || _duceResource.IsOnChannel(channel)); if (skipOnChannelCheck || _duceResource.IsOnChannel(channel)) { Transform vTransform = Transform; Transform vRelativeTransform = RelativeTransform; GradientStopCollection vGradientStops = GradientStops; DUCE.ResourceHandle hTransform; if (vTransform == null || Object.ReferenceEquals(vTransform, Transform.Identity) ) { hTransform = DUCE.ResourceHandle.Null; } else { hTransform = ((DUCE.IResource)vTransform).GetHandle(channel); } DUCE.ResourceHandle hRelativeTransform; if (vRelativeTransform == null || Object.ReferenceEquals(vRelativeTransform, Transform.Identity) ) { hRelativeTransform = DUCE.ResourceHandle.Null; } else { hRelativeTransform = ((DUCE.IResource)vRelativeTransform).GetHandle(channel); } DUCE.ResourceHandle hOpacityAnimations = GetAnimationResourceHandle(OpacityProperty, channel); DUCE.ResourceHandle hStartPointAnimations = GetAnimationResourceHandle(StartPointProperty, channel); DUCE.ResourceHandle hEndPointAnimations = GetAnimationResourceHandle(EndPointProperty, channel); unsafe { DUCE.MILCMD_LINEARGRADIENTBRUSH data; data.Type = MILCMD.MilCmdLinearGradientBrush; data.Handle = _duceResource.GetHandle(channel); double tempOpacity = Opacity; DUCE.CopyBytes((byte*)&data.Opacity, (byte*)&tempOpacity, 8); data.hOpacityAnimations = hOpacityAnimations; data.hTransform = hTransform; data.hRelativeTransform = hRelativeTransform; data.ColorInterpolationMode = ColorInterpolationMode; data.MappingMode = MappingMode; data.SpreadMethod = SpreadMethod; Point tempStartPoint = StartPoint; DUCE.CopyBytes((byte*)&data.StartPoint, (byte*)&tempStartPoint, 16); data.hStartPointAnimations = hStartPointAnimations; Point tempEndPoint = EndPoint; DUCE.CopyBytes((byte*)&data.EndPoint, (byte*)&tempEndPoint, 16); data.hEndPointAnimations = hEndPointAnimations; // NTRAID#Longhorn-1011154-2004/8/12-asecchia GradientStopCollection: Need to enforce upper-limit of gradient stop capacity int count = (vGradientStops == null) ? 0 : vGradientStops.Count; data.GradientStopsSize = (UInt32)(sizeof(DUCE.MIL_GRADIENTSTOP)*count); channel.BeginCommand( (byte*)&data, sizeof(DUCE.MILCMD_LINEARGRADIENTBRUSH), sizeof(DUCE.MIL_GRADIENTSTOP)*count ); for (int i=0; i/// LinearGradientBrush - This GradientBrush defines its Gradient as an interpolation /// between two parallel lines. /// public sealed partial class LinearGradientBrush : GradientBrush { #region Constructors /// /// Default constructor for LinearGradientBrush. The resulting brush has no content. /// public LinearGradientBrush() : base() { } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with GradientStops specified at offset 0.0 and /// 1.0. The StartPoint is set to (0,0) and the EndPoint is derived from the angle /// such that 1) the line containing the StartPoint and EndPoint is 'angle' degrees /// from the horizontal in the direction of positive Y, and 2) the EndPoint lies on /// the perimeter of the unit circle. /// /// The Color at offset 0.0. /// The Color at offset 1.0. /// The angle, in degrees, that the gradient will be away from horizontal. public LinearGradientBrush(Color startColor, Color endColor, double angle) : base() { EndPoint = EndPointFromAngle(angle); GradientStops.Add(new GradientStop(startColor, 0.0)); GradientStops.Add(new GradientStop(endColor, 1.0)); } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with two colors at the specified start and end points. /// /// The Color at offset 0.0. /// The Color at offset 1.0. /// The start point /// The end point public LinearGradientBrush(Color startColor, Color endColor, Point startPoint, Point endPoint) : base() { StartPoint = startPoint; EndPoint = endPoint; GradientStops.Add(new GradientStop(startColor, 0.0)); GradientStops.Add(new GradientStop(endColor, 1.0)); } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with GradientStops set to the passed-in collection. /// /// GradientStopCollection to set on this brush. public LinearGradientBrush(GradientStopCollection gradientStopCollection) : base (gradientStopCollection) { } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with GradientStops set to the passed-in collection. /// Constructs a LinearGradientBrush with GradientStops specified at offset 0.0 and /// 1.0. The StartPoint is set to (0,0) and the EndPoint is derived from the angle /// such that 1) the line containing the StartPoint and EndPoint is 'angle' degrees /// from the horizontal in the direction of positive Y, and 2) the EndPoint lies on /// the perimeter of the unit circle. /// /// GradientStopCollection to set on this brush. /// The angle, in degrees, that the gradient will be away from horizontal. public LinearGradientBrush(GradientStopCollection gradientStopCollection, double angle) : base (gradientStopCollection) { EndPoint = EndPointFromAngle(angle); } ////// LinearGradientBrush Constructor /// Constructs a LinearGradientBrush with GradientStops set to the passed-in collection. /// The StartPoint and EndPoint are set to the specified startPoint and endPoint. /// /// GradientStopCollection to set on this brush. /// The start point /// The end point public LinearGradientBrush(GradientStopCollection gradientStopCollection, Point startPoint, Point endPoint) : base (gradientStopCollection) { StartPoint = startPoint; EndPoint = endPoint; } #endregion Constructors ////// Critical: This code accesses unsafe code blocks /// TreatAsSafe: This code does is safe to call but needs to be verified for correctness /// [SecurityCritical, SecurityTreatAsSafe] private void ManualUpdateResource(DUCE.Channel channel, bool skipOnChannelCheck) { // If we're told we can skip the channel check, then we must be on channel Debug.Assert(!skipOnChannelCheck || _duceResource.IsOnChannel(channel)); if (skipOnChannelCheck || _duceResource.IsOnChannel(channel)) { Transform vTransform = Transform; Transform vRelativeTransform = RelativeTransform; GradientStopCollection vGradientStops = GradientStops; DUCE.ResourceHandle hTransform; if (vTransform == null || Object.ReferenceEquals(vTransform, Transform.Identity) ) { hTransform = DUCE.ResourceHandle.Null; } else { hTransform = ((DUCE.IResource)vTransform).GetHandle(channel); } DUCE.ResourceHandle hRelativeTransform; if (vRelativeTransform == null || Object.ReferenceEquals(vRelativeTransform, Transform.Identity) ) { hRelativeTransform = DUCE.ResourceHandle.Null; } else { hRelativeTransform = ((DUCE.IResource)vRelativeTransform).GetHandle(channel); } DUCE.ResourceHandle hOpacityAnimations = GetAnimationResourceHandle(OpacityProperty, channel); DUCE.ResourceHandle hStartPointAnimations = GetAnimationResourceHandle(StartPointProperty, channel); DUCE.ResourceHandle hEndPointAnimations = GetAnimationResourceHandle(EndPointProperty, channel); unsafe { DUCE.MILCMD_LINEARGRADIENTBRUSH data; data.Type = MILCMD.MilCmdLinearGradientBrush; data.Handle = _duceResource.GetHandle(channel); double tempOpacity = Opacity; DUCE.CopyBytes((byte*)&data.Opacity, (byte*)&tempOpacity, 8); data.hOpacityAnimations = hOpacityAnimations; data.hTransform = hTransform; data.hRelativeTransform = hRelativeTransform; data.ColorInterpolationMode = ColorInterpolationMode; data.MappingMode = MappingMode; data.SpreadMethod = SpreadMethod; Point tempStartPoint = StartPoint; DUCE.CopyBytes((byte*)&data.StartPoint, (byte*)&tempStartPoint, 16); data.hStartPointAnimations = hStartPointAnimations; Point tempEndPoint = EndPoint; DUCE.CopyBytes((byte*)&data.EndPoint, (byte*)&tempEndPoint, 16); data.hEndPointAnimations = hEndPointAnimations; // NTRAID#Longhorn-1011154-2004/8/12-asecchia GradientStopCollection: Need to enforce upper-limit of gradient stop capacity int count = (vGradientStops == null) ? 0 : vGradientStops.Count; data.GradientStopsSize = (UInt32)(sizeof(DUCE.MIL_GRADIENTSTOP)*count); channel.BeginCommand( (byte*)&data, sizeof(DUCE.MILCMD_LINEARGRADIENTBRUSH), sizeof(DUCE.MIL_GRADIENTSTOP)*count ); for (int i=0; i
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DesignerSelectionListAdapter.cs
- SchemaAttDef.cs
- CategoryAttribute.cs
- LineVisual.cs
- String.cs
- DynamicControlParameter.cs
- CompilerHelpers.cs
- _BaseOverlappedAsyncResult.cs
- ActivationServices.cs
- SpellCheck.cs
- WindowExtensionMethods.cs
- XmlQuerySequence.cs
- AxisAngleRotation3D.cs
- PolicyStatement.cs
- DataServiceHost.cs
- TextContainerChangedEventArgs.cs
- CodeMemberProperty.cs
- DivideByZeroException.cs
- PrintDialogException.cs
- AdapterUtil.cs
- Registry.cs
- NamespaceQuery.cs
- CodeMethodReturnStatement.cs
- XmlWrappingWriter.cs
- EntityDataSourceEntitySetNameItem.cs
- SelectingProviderEventArgs.cs
- RequiredAttributeAttribute.cs
- CompilationPass2TaskInternal.cs
- ServiceModelActivity.cs
- XsltInput.cs
- CharacterBuffer.cs
- WeakReferenceList.cs
- QuaternionAnimation.cs
- _SecureChannel.cs
- ConnectionManagementElementCollection.cs
- SchemaImporterExtensionElement.cs
- HttpBufferlessInputStream.cs
- SafeRightsManagementQueryHandle.cs
- XmlSchemaAttributeGroup.cs
- DataSourceBooleanViewSchemaConverter.cs
- NativeMethods.cs
- IriParsingElement.cs
- storepermission.cs
- CheckBox.cs
- MenuScrollingVisibilityConverter.cs
- FamilyCollection.cs
- XmlNamespaceDeclarationsAttribute.cs
- GetPageNumberCompletedEventArgs.cs
- IdentityNotMappedException.cs
- DataKeyArray.cs
- PropagatorResult.cs
- TreeSet.cs
- UrlMapping.cs
- PointUtil.cs
- DrawListViewItemEventArgs.cs
- TypeDependencyAttribute.cs
- WmlObjectListAdapter.cs
- _ListenerRequestStream.cs
- HttpCapabilitiesEvaluator.cs
- SmtpDigestAuthenticationModule.cs
- GridViewRow.cs
- BamlBinaryReader.cs
- FileCodeGroup.cs
- WebPartsPersonalizationAuthorization.cs
- NullableLongMinMaxAggregationOperator.cs
- SelectionListComponentEditor.cs
- XamlFrame.cs
- UserControlAutomationPeer.cs
- EventRoute.cs
- XpsResourcePolicy.cs
- webeventbuffer.cs
- SoapElementAttribute.cs
- TypeConverterHelper.cs
- UInt32Converter.cs
- HttpRequestCacheValidator.cs
- AsymmetricAlgorithm.cs
- DataGridViewTextBoxColumn.cs
- IndexingContentUnit.cs
- TextSearch.cs
- DataServiceClientException.cs
- UnsafeNativeMethods.cs
- FormsAuthenticationTicket.cs
- DateTimeAutomationPeer.cs
- WaitHandle.cs
- CompensatableTransactionScopeActivity.cs
- CharAnimationUsingKeyFrames.cs
- XmlAttributeAttribute.cs
- PageRanges.cs
- ModuleConfigurationInfo.cs
- TagNameToTypeMapper.cs
- GeometryCombineModeValidation.cs
- MatrixTransform.cs
- SkinBuilder.cs
- VersionedStreamOwner.cs
- EmptyEnumerable.cs
- ServiceParser.cs
- RoutedCommand.cs
- PeerObject.cs
- DataObjectMethodAttribute.cs
- wgx_render.cs