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
- ScrollItemProviderWrapper.cs
- RenamedEventArgs.cs
- DataGridViewAccessibleObject.cs
- SmiXetterAccessMap.cs
- SafeBitVector32.cs
- TreeViewAutomationPeer.cs
- GuidConverter.cs
- ScriptResourceHandler.cs
- FindRequestContext.cs
- Visual3D.cs
- Behavior.cs
- DataGridTextBoxColumn.cs
- SqlBuffer.cs
- GlyphCache.cs
- SqlConnectionHelper.cs
- BeginStoryboard.cs
- ReaderWriterLock.cs
- ServiceObjectContainer.cs
- BamlStream.cs
- InstanceCompleteException.cs
- CodeSnippetStatement.cs
- Button.cs
- RenderData.cs
- DataGridViewTextBoxEditingControl.cs
- TypeResolvingOptionsAttribute.cs
- RelationshipWrapper.cs
- SizeF.cs
- SerializationStore.cs
- ClientSettings.cs
- SpotLight.cs
- EntityParameter.cs
- DragDeltaEventArgs.cs
- RegisteredArrayDeclaration.cs
- Hashtable.cs
- ObfuscationAttribute.cs
- DataKeyCollection.cs
- NamespaceEmitter.cs
- SQLDecimal.cs
- FlowDocumentFormatter.cs
- HttpUnhandledOperationInvoker.cs
- FixedHyperLink.cs
- PolicyValidator.cs
- AttributeCollection.cs
- GeneralTransform3DGroup.cs
- DependencyPropertyKind.cs
- ToolStripPanelRow.cs
- PenThreadPool.cs
- ManipulationStartingEventArgs.cs
- StringUtil.cs
- documentsequencetextpointer.cs
- MessageQueueConverter.cs
- ToolBar.cs
- __ConsoleStream.cs
- Activity.cs
- ProfileGroupSettingsCollection.cs
- AddressHeader.cs
- SqlAggregateChecker.cs
- DecimalAnimationBase.cs
- InvokeSchedule.cs
- NotSupportedException.cs
- MediaContext.cs
- StateWorkerRequest.cs
- XPathDocument.cs
- SerialReceived.cs
- DesignerMetadata.cs
- MimeTextImporter.cs
- OleDbPermission.cs
- SizeAnimationClockResource.cs
- DSASignatureDeformatter.cs
- SQLInt32Storage.cs
- TextDocumentView.cs
- Camera.cs
- ListViewDeleteEventArgs.cs
- SimpleBitVector32.cs
- PropertyBuilder.cs
- EnvironmentPermission.cs
- XPathNodePointer.cs
- SystemSounds.cs
- XmlSchemaObjectCollection.cs
- ActivityTypeCodeDomSerializer.cs
- WmlImageAdapter.cs
- UIElementHelper.cs
- WebPartDescriptionCollection.cs
- PagePropertiesChangingEventArgs.cs
- RequestQueue.cs
- CngAlgorithmGroup.cs
- DataGridViewTextBoxEditingControl.cs
- SmiEventSink_Default.cs
- RichTextBox.cs
- EventDriven.cs
- Merger.cs
- ContentElementAutomationPeer.cs
- BitmapInitialize.cs
- GPRECTF.cs
- QueryContinueDragEvent.cs
- HtmlEmptyTagControlBuilder.cs
- SqlDataSourceStatusEventArgs.cs
- ResetableIterator.cs
- ClientTargetCollection.cs
- RsaSecurityKey.cs