Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / CommonUI / System / Drawing / SolidBrush.cs / 1 / SolidBrush.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Drawing { using System.Runtime.InteropServices; using System.Diagnostics; using System; using Microsoft.Win32; using System.ComponentModel; using System.Drawing.Internal; ////// /// public sealed class SolidBrush : Brush, ISystemColorTracker { // GDI+ doesn't understand system colors, so we need to cache the value here private Color color = Color.Empty; private bool immutable; /** * Create a new solid fill brush object */ ////// Defines a brush made up of a single color. Brushes are /// used to fill graphics shapes such as rectangles, ellipses, pies, polygons, and paths. /// ////// /// public SolidBrush(Color color) { this.color = color; IntPtr brush = IntPtr.Zero; int status = SafeNativeMethods.Gdip.GdipCreateSolidFill(this.color.ToArgb(), out brush); if (status != SafeNativeMethods.Gdip.Ok) throw SafeNativeMethods.Gdip.StatusException(status); SetNativeBrush(brush); if (color.IsSystemColor) SystemColorTracker.Add(this); } internal SolidBrush(Color color, bool immutable) : this(color) { this.immutable = immutable; } ////// Initializes a new instance of the ///class of the specified /// color. /// /// Constructor to initialized this object from a GDI+ Brush native pointer. /// internal SolidBrush( IntPtr nativeBrush ) { Debug.Assert( nativeBrush != IntPtr.Zero, "Initializing native brush with null." ); SetNativeBrush( nativeBrush ); } ////// /// Creates an exact copy of this public override object Clone() { IntPtr cloneBrush = IntPtr.Zero; int status = SafeNativeMethods.Gdip.GdipCloneBrush(new HandleRef(this, this.NativeBrush), out cloneBrush); if (status != SafeNativeMethods.Gdip.Ok) throw SafeNativeMethods.Gdip.StatusException(status); // We intentionally lose the "immutable" bit. return new SolidBrush(cloneBrush); } ///. /// protected override void Dispose(bool disposing) { if (!disposing) { immutable = false; } else if (immutable) { throw new ArgumentException(SR.GetString(SR.CantChangeImmutableObjects, "Brush")); } base.Dispose(disposing); } /// /// /// public Color Color { get { if (this.color == Color.Empty) { int colorARGB = 0; int status = SafeNativeMethods.Gdip.GdipGetSolidFillColor(new HandleRef(this, this.NativeBrush), out colorARGB); if (status != SafeNativeMethods.Gdip.Ok) throw SafeNativeMethods.Gdip.StatusException(status); this.color = Color.FromArgb(colorARGB); } // GDI+ doesn't understand system colors, so we can't use GdipGetSolidFillColor in the general case return this.color; } set { if (immutable) { throw new ArgumentException(SR.GetString(SR.CantChangeImmutableObjects, "Brush")); } if( this.color != value ) { Color oldColor = this.color; InternalSetColor(value); // if (value.IsSystemColor && !oldColor.IsSystemColor) { SystemColorTracker.Add(this); } } } } // Sets the color even if the brush is considered immutable private void InternalSetColor(Color value) { int status = SafeNativeMethods.Gdip.GdipSetSolidFillColor(new HandleRef(this, this.NativeBrush), value.ToArgb()); if (status != SafeNativeMethods.Gdip.Ok) throw SafeNativeMethods.Gdip.StatusException(status); this.color = value; } ////// The color of this ///. /// /// void ISystemColorTracker.OnSystemColorChanged() { if( this.NativeBrush != IntPtr.Zero ){ InternalSetColor(color); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Drawing { using System.Runtime.InteropServices; using System.Diagnostics; using System; using Microsoft.Win32; using System.ComponentModel; using System.Drawing.Internal; ////// /// public sealed class SolidBrush : Brush, ISystemColorTracker { // GDI+ doesn't understand system colors, so we need to cache the value here private Color color = Color.Empty; private bool immutable; /** * Create a new solid fill brush object */ ////// Defines a brush made up of a single color. Brushes are /// used to fill graphics shapes such as rectangles, ellipses, pies, polygons, and paths. /// ////// /// public SolidBrush(Color color) { this.color = color; IntPtr brush = IntPtr.Zero; int status = SafeNativeMethods.Gdip.GdipCreateSolidFill(this.color.ToArgb(), out brush); if (status != SafeNativeMethods.Gdip.Ok) throw SafeNativeMethods.Gdip.StatusException(status); SetNativeBrush(brush); if (color.IsSystemColor) SystemColorTracker.Add(this); } internal SolidBrush(Color color, bool immutable) : this(color) { this.immutable = immutable; } ////// Initializes a new instance of the ///class of the specified /// color. /// /// Constructor to initialized this object from a GDI+ Brush native pointer. /// internal SolidBrush( IntPtr nativeBrush ) { Debug.Assert( nativeBrush != IntPtr.Zero, "Initializing native brush with null." ); SetNativeBrush( nativeBrush ); } ////// /// Creates an exact copy of this public override object Clone() { IntPtr cloneBrush = IntPtr.Zero; int status = SafeNativeMethods.Gdip.GdipCloneBrush(new HandleRef(this, this.NativeBrush), out cloneBrush); if (status != SafeNativeMethods.Gdip.Ok) throw SafeNativeMethods.Gdip.StatusException(status); // We intentionally lose the "immutable" bit. return new SolidBrush(cloneBrush); } ///. /// protected override void Dispose(bool disposing) { if (!disposing) { immutable = false; } else if (immutable) { throw new ArgumentException(SR.GetString(SR.CantChangeImmutableObjects, "Brush")); } base.Dispose(disposing); } /// /// /// public Color Color { get { if (this.color == Color.Empty) { int colorARGB = 0; int status = SafeNativeMethods.Gdip.GdipGetSolidFillColor(new HandleRef(this, this.NativeBrush), out colorARGB); if (status != SafeNativeMethods.Gdip.Ok) throw SafeNativeMethods.Gdip.StatusException(status); this.color = Color.FromArgb(colorARGB); } // GDI+ doesn't understand system colors, so we can't use GdipGetSolidFillColor in the general case return this.color; } set { if (immutable) { throw new ArgumentException(SR.GetString(SR.CantChangeImmutableObjects, "Brush")); } if( this.color != value ) { Color oldColor = this.color; InternalSetColor(value); // if (value.IsSystemColor && !oldColor.IsSystemColor) { SystemColorTracker.Add(this); } } } } // Sets the color even if the brush is considered immutable private void InternalSetColor(Color value) { int status = SafeNativeMethods.Gdip.GdipSetSolidFillColor(new HandleRef(this, this.NativeBrush), value.ToArgb()); if (status != SafeNativeMethods.Gdip.Ok) throw SafeNativeMethods.Gdip.StatusException(status); this.color = value; } ////// The color of this ///. /// /// void ISystemColorTracker.OnSystemColorChanged() { if( this.NativeBrush != IntPtr.Zero ){ InternalSetColor(color); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DefaultParameterValueAttribute.cs
- RadioButton.cs
- PolicyStatement.cs
- SizeChangedInfo.cs
- DataGridLengthConverter.cs
- ModulesEntry.cs
- FigureHelper.cs
- RefType.cs
- StateMachineAction.cs
- RegexRunnerFactory.cs
- FileUpload.cs
- MemberAccessException.cs
- AnnotationHelper.cs
- AppModelKnownContentFactory.cs
- CodeLinePragma.cs
- DesignColumnCollection.cs
- PropertyValueUIItem.cs
- HtmlFormWrapper.cs
- DataContractSerializerElement.cs
- OleDbRowUpdatingEvent.cs
- ControlType.cs
- DataTableClearEvent.cs
- SetIterators.cs
- CapabilitiesUse.cs
- RecordConverter.cs
- DynamicObjectAccessor.cs
- SqlNodeTypeOperators.cs
- SmiContextFactory.cs
- SharedPerformanceCounter.cs
- ToolboxComponentsCreatedEventArgs.cs
- MsmqHostedTransportConfiguration.cs
- SurrogateDataContract.cs
- ModulesEntry.cs
- WSUtilitySpecificationVersion.cs
- FlowDocumentView.cs
- TypeHelpers.cs
- VirtualizedItemProviderWrapper.cs
- EmbossBitmapEffect.cs
- RawStylusInputReport.cs
- XPathMessageContext.cs
- IISUnsafeMethods.cs
- XmlUtf8RawTextWriter.cs
- BufferedGraphicsManager.cs
- HWStack.cs
- XmlValidatingReader.cs
- XsdBuilder.cs
- RMPublishingDialog.cs
- X509InitiatorCertificateClientElement.cs
- AppDomainAttributes.cs
- Util.cs
- HtmlInputPassword.cs
- PenContexts.cs
- ViewService.cs
- DateTimeParse.cs
- JsonFormatReaderGenerator.cs
- MetafileHeader.cs
- BooleanFunctions.cs
- ProfileService.cs
- Subtract.cs
- WebPartCatalogCloseVerb.cs
- ExceptQueryOperator.cs
- BackgroundWorker.cs
- XmlSchemaSimpleContent.cs
- DispatcherObject.cs
- CreateUserWizardDesigner.cs
- BufferedReadStream.cs
- XpsFont.cs
- ReadOnlyHierarchicalDataSource.cs
- WebPartDisplayModeCollection.cs
- SelectiveScrollingGrid.cs
- SelectionRangeConverter.cs
- MimeObjectFactory.cs
- Task.cs
- CompositeDataBoundControl.cs
- ConversionContext.cs
- MarkupExtensionParser.cs
- Baml6Assembly.cs
- WebZone.cs
- DataMisalignedException.cs
- EllipticalNodeOperations.cs
- NullRuntimeConfig.cs
- TemplateControl.cs
- TypeUtil.cs
- TextHidden.cs
- ByteStorage.cs
- ResourceContainer.cs
- LogReserveAndAppendState.cs
- Dictionary.cs
- WSSecurityJan2004.cs
- DataGridViewCellStyleContentChangedEventArgs.cs
- Executor.cs
- Internal.cs
- DetailsViewCommandEventArgs.cs
- ContentType.cs
- HMACSHA384.cs
- DiagnosticTraceSource.cs
- ParseChildrenAsPropertiesAttribute.cs
- ValidatorCompatibilityHelper.cs
- KoreanCalendar.cs
- GAC.cs