Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Shapes / Rectangle.cs / 1 / Rectangle.cs
//---------------------------------------------------------------------------- // File: Rectangle.cs // // Description: // Implementation of Rectangle shape element. // // History: // 05/30/02 - AdSmith - Created. // // Copyright (C) 2003 by Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- using System.Windows.Shapes; using System.Diagnostics; using System.Windows.Threading; using System.Windows; using System.Windows.Media; using MS.Internal; using System.ComponentModel; using System; namespace System.Windows.Shapes { ////// The rectangle shape element /// This element (like all shapes) belongs under a Canvas, /// and will be presented by the parent canvas. /// ///public sealed class Rectangle : Shape { #region Constructors /// /// Instantiates a new instance of a Rectangle with no parent element. /// ///public Rectangle() { } // The default stretch mode of Rectangle is Fill static Rectangle() { StretchProperty.OverrideMetadata(typeof(Rectangle), new FrameworkPropertyMetadata(Stretch.Fill)); } #endregion Constructors #region Dynamic Properties /// /// RadiusX Dynamic Property - if set, this rectangle becomes rounded /// ///public static readonly DependencyProperty RadiusXProperty = DependencyProperty.Register( "RadiusX", typeof(double), typeof(Rectangle), new FrameworkPropertyMetadata(0d, FrameworkPropertyMetadataOptions.AffectsRender)); /// /// Provide public access to RadiusX property. /// ////// [TypeConverter(typeof(LengthConverter))] public double RadiusX { get { return (double)GetValue(RadiusXProperty); } set { SetValue(RadiusXProperty, value); } } /// /// RadiusY Dynamic Property - if set, this rectangle becomes rounded /// ///public static readonly DependencyProperty RadiusYProperty = DependencyProperty.Register( "RadiusY", typeof(double), typeof(Rectangle), new FrameworkPropertyMetadata(0d, FrameworkPropertyMetadataOptions.AffectsRender)); /// /// Provide public access to RadiusY property. /// ////// [TypeConverter(typeof(LengthConverter))] public double RadiusY { get { return (double)GetValue(RadiusYProperty); } set { SetValue(RadiusYProperty, value); } } // For a Rectangle, RenderedGeometry = defining geometry and GeometryTransform = Identity /// /// The RenderedGeometry property returns the final rendered geometry /// public override Geometry RenderedGeometry { get { // RenderedGeometry = defining geometry return new RectangleGeometry(_rect, RadiusX, RadiusY); } } ////// Return the transformation applied to the geometry before rendering /// public override Transform GeometryTransform { get { return Transform.Identity; } } #endregion Dynamic Properties #region Protected ////// Updates DesiredSize of the Rectangle. Called by parent UIElement. This is the first pass of layout. /// /// Constraint size is an "upper limit" that Rectangle should not exceed. ///Rectangle's desired size. protected override Size MeasureOverride(Size constraint) { if (Stretch == Stretch.UniformToFill) { double width = constraint.Width; double height = constraint.Height; if (Double.IsInfinity(width) && Double.IsInfinity(height)) { return GetNaturalSize(); } else if (Double.IsInfinity(width) || Double.IsInfinity(height)) { width = Math.Min(width, height); } else { width = Math.Max(width, height); } return new Size(width, width); } return GetNaturalSize(); } ////// Returns the final size of the shape and cachnes the bounds. /// protected override Size ArrangeOverride(Size finalSize) { // Since we do NOT want the RadiusX and RadiusY to change with the rendering transformation, we // construct the rectangle to fit finalSize with the appropriate Stretch mode. The rendering // transformation will thus be the identity. double penThickness = GetStrokeThickness(); double margin = penThickness / 2; _rect = new Rect( margin, // X margin, // Y Math.Max(0, finalSize.Width - penThickness), // Width Math.Max(0, finalSize.Height - penThickness)); // Height switch (Stretch) { case Stretch.None: // A 0 Rect.Width and Rect.Height rectangle _rect.Width = _rect.Height = 0; break; case Stretch.Fill: // The most common case: a rectangle that fills the box. // _rect has already been initialized for that. break; case Stretch.Uniform: // The maximal square that fits in the final box if (_rect.Width > _rect.Height) { _rect.Width = _rect.Height; } else // _rect.Width <= _rect.Height { _rect.Height = _rect.Width; } break; case Stretch.UniformToFill: // The minimal square that fills the final box if (_rect.Width < _rect.Height) { _rect.Width = _rect.Height; } else // _rect.Width >= _rect.Height { _rect.Height = _rect.Width; } break; } ResetRenderedGeometry(); return finalSize; } ////// Get the rectangle that defines this shape /// protected override Geometry DefiningGeometry { get { return new RectangleGeometry(_rect, RadiusX, RadiusY); } } ////// Render callback. /// protected override void OnRender(DrawingContext drawingContext) { Pen pen = GetPen(); drawingContext.DrawRoundedRectangle(Fill, pen, _rect, RadiusX, RadiusY); } #endregion Protected #region Internal Methods internal override void CacheDefiningGeometry() { double margin = GetStrokeThickness() / 2; _rect = new Rect(margin, margin, 0, 0); } ////// Get the natural size of the geometry that defines this shape /// internal override Size GetNaturalSize() { double strokeThickness = GetStrokeThickness(); return new Size(strokeThickness, strokeThickness); } ////// Get the bonds of the rectangle that defines this shape /// internal override Rect GetDefiningGeometryBounds() { return _rect; } // // This property // 1. Finds the correct initial size for the _effectiveValues store on the current DependencyObject // 2. This is a performance optimization // internal override int EffectiveValuesInitialSize { get { return 19; } } #endregion Internal Methods #region Private Fields private Rect _rect = Rect.Empty; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // File: Rectangle.cs // // Description: // Implementation of Rectangle shape element. // // History: // 05/30/02 - AdSmith - Created. // // Copyright (C) 2003 by Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- using System.Windows.Shapes; using System.Diagnostics; using System.Windows.Threading; using System.Windows; using System.Windows.Media; using MS.Internal; using System.ComponentModel; using System; namespace System.Windows.Shapes { ////// The rectangle shape element /// This element (like all shapes) belongs under a Canvas, /// and will be presented by the parent canvas. /// ///public sealed class Rectangle : Shape { #region Constructors /// /// Instantiates a new instance of a Rectangle with no parent element. /// ///public Rectangle() { } // The default stretch mode of Rectangle is Fill static Rectangle() { StretchProperty.OverrideMetadata(typeof(Rectangle), new FrameworkPropertyMetadata(Stretch.Fill)); } #endregion Constructors #region Dynamic Properties /// /// RadiusX Dynamic Property - if set, this rectangle becomes rounded /// ///public static readonly DependencyProperty RadiusXProperty = DependencyProperty.Register( "RadiusX", typeof(double), typeof(Rectangle), new FrameworkPropertyMetadata(0d, FrameworkPropertyMetadataOptions.AffectsRender)); /// /// Provide public access to RadiusX property. /// ////// [TypeConverter(typeof(LengthConverter))] public double RadiusX { get { return (double)GetValue(RadiusXProperty); } set { SetValue(RadiusXProperty, value); } } /// /// RadiusY Dynamic Property - if set, this rectangle becomes rounded /// ///public static readonly DependencyProperty RadiusYProperty = DependencyProperty.Register( "RadiusY", typeof(double), typeof(Rectangle), new FrameworkPropertyMetadata(0d, FrameworkPropertyMetadataOptions.AffectsRender)); /// /// Provide public access to RadiusY property. /// ////// [TypeConverter(typeof(LengthConverter))] public double RadiusY { get { return (double)GetValue(RadiusYProperty); } set { SetValue(RadiusYProperty, value); } } // For a Rectangle, RenderedGeometry = defining geometry and GeometryTransform = Identity /// /// The RenderedGeometry property returns the final rendered geometry /// public override Geometry RenderedGeometry { get { // RenderedGeometry = defining geometry return new RectangleGeometry(_rect, RadiusX, RadiusY); } } ////// Return the transformation applied to the geometry before rendering /// public override Transform GeometryTransform { get { return Transform.Identity; } } #endregion Dynamic Properties #region Protected ////// Updates DesiredSize of the Rectangle. Called by parent UIElement. This is the first pass of layout. /// /// Constraint size is an "upper limit" that Rectangle should not exceed. ///Rectangle's desired size. protected override Size MeasureOverride(Size constraint) { if (Stretch == Stretch.UniformToFill) { double width = constraint.Width; double height = constraint.Height; if (Double.IsInfinity(width) && Double.IsInfinity(height)) { return GetNaturalSize(); } else if (Double.IsInfinity(width) || Double.IsInfinity(height)) { width = Math.Min(width, height); } else { width = Math.Max(width, height); } return new Size(width, width); } return GetNaturalSize(); } ////// Returns the final size of the shape and cachnes the bounds. /// protected override Size ArrangeOverride(Size finalSize) { // Since we do NOT want the RadiusX and RadiusY to change with the rendering transformation, we // construct the rectangle to fit finalSize with the appropriate Stretch mode. The rendering // transformation will thus be the identity. double penThickness = GetStrokeThickness(); double margin = penThickness / 2; _rect = new Rect( margin, // X margin, // Y Math.Max(0, finalSize.Width - penThickness), // Width Math.Max(0, finalSize.Height - penThickness)); // Height switch (Stretch) { case Stretch.None: // A 0 Rect.Width and Rect.Height rectangle _rect.Width = _rect.Height = 0; break; case Stretch.Fill: // The most common case: a rectangle that fills the box. // _rect has already been initialized for that. break; case Stretch.Uniform: // The maximal square that fits in the final box if (_rect.Width > _rect.Height) { _rect.Width = _rect.Height; } else // _rect.Width <= _rect.Height { _rect.Height = _rect.Width; } break; case Stretch.UniformToFill: // The minimal square that fills the final box if (_rect.Width < _rect.Height) { _rect.Width = _rect.Height; } else // _rect.Width >= _rect.Height { _rect.Height = _rect.Width; } break; } ResetRenderedGeometry(); return finalSize; } ////// Get the rectangle that defines this shape /// protected override Geometry DefiningGeometry { get { return new RectangleGeometry(_rect, RadiusX, RadiusY); } } ////// Render callback. /// protected override void OnRender(DrawingContext drawingContext) { Pen pen = GetPen(); drawingContext.DrawRoundedRectangle(Fill, pen, _rect, RadiusX, RadiusY); } #endregion Protected #region Internal Methods internal override void CacheDefiningGeometry() { double margin = GetStrokeThickness() / 2; _rect = new Rect(margin, margin, 0, 0); } ////// Get the natural size of the geometry that defines this shape /// internal override Size GetNaturalSize() { double strokeThickness = GetStrokeThickness(); return new Size(strokeThickness, strokeThickness); } ////// Get the bonds of the rectangle that defines this shape /// internal override Rect GetDefiningGeometryBounds() { return _rect; } // // This property // 1. Finds the correct initial size for the _effectiveValues store on the current DependencyObject // 2. This is a performance optimization // internal override int EffectiveValuesInitialSize { get { return 19; } } #endregion Internal Methods #region Private Fields private Rect _rect = Rect.Empty; #endregion Private Fields } } // 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
- BlockUIContainer.cs
- SelectorAutomationPeer.cs
- CodeNamespace.cs
- ValueProviderWrapper.cs
- MyContact.cs
- EntityException.cs
- PackWebRequestFactory.cs
- GridView.cs
- RegexRunner.cs
- ProfileProvider.cs
- SecurityUtils.cs
- UInt16.cs
- TextParaLineResult.cs
- ImpersonateTokenRef.cs
- ConstructorBuilder.cs
- DefaultObjectSerializer.cs
- IgnoreFileBuildProvider.cs
- MappableObjectManager.cs
- TypographyProperties.cs
- DataGridViewTopLeftHeaderCell.cs
- SqlSelectClauseBuilder.cs
- CFGGrammar.cs
- QueryExtender.cs
- DirtyTextRange.cs
- EdgeProfileValidation.cs
- InstanceLockedException.cs
- MetadataExchangeClient.cs
- ProfilePropertyNameValidator.cs
- GestureRecognizer.cs
- RenderContext.cs
- RouteData.cs
- DataGridRowDetailsEventArgs.cs
- AnnotationResource.cs
- SelectionProviderWrapper.cs
- ProcessProtocolHandler.cs
- TextOutput.cs
- WindowsProgressbar.cs
- SplashScreenNativeMethods.cs
- ChannelCacheSettings.cs
- EntityFunctions.cs
- JoinCqlBlock.cs
- InternalsVisibleToAttribute.cs
- AttachedPropertyBrowsableAttribute.cs
- TextOutput.cs
- IncrementalReadDecoders.cs
- DataGridViewButtonCell.cs
- FacetDescription.cs
- ConvertEvent.cs
- Brush.cs
- CollectionView.cs
- EndEvent.cs
- SByte.cs
- WebPermission.cs
- ScriptRegistrationManager.cs
- HashAlgorithm.cs
- _NtlmClient.cs
- TypefaceMetricsCache.cs
- FontUnitConverter.cs
- PreservationFileReader.cs
- x509utils.cs
- Action.cs
- DataGridViewColumn.cs
- EntityDataSourceView.cs
- Menu.cs
- HttpWebRequestElement.cs
- ErrorWebPart.cs
- ProviderException.cs
- Timer.cs
- PreloadedPackages.cs
- RSAPKCS1SignatureDeformatter.cs
- PersonalizationStateQuery.cs
- BehaviorEditorPart.cs
- CatalogZoneBase.cs
- InArgument.cs
- util.cs
- ReferenceEqualityComparer.cs
- XsdDateTime.cs
- WebPartManager.cs
- BroadcastEventHelper.cs
- XmlDataLoader.cs
- TypeUnloadedException.cs
- PreviousTrackingServiceAttribute.cs
- ButtonBaseDesigner.cs
- TitleStyle.cs
- CompositeControl.cs
- DebuggerAttributes.cs
- Int16KeyFrameCollection.cs
- BindingCollection.cs
- EntityDataSourceConfigureObjectContext.cs
- DataKeyPropertyAttribute.cs
- GridErrorDlg.cs
- DataGridViewIntLinkedList.cs
- WpfKnownTypeInvoker.cs
- AffineTransform3D.cs
- ManagedFilter.cs
- ItemsPanelTemplate.cs
- SkinBuilder.cs
- SimpleBitVector32.cs
- DataSetMappper.cs
- ClientFormsAuthenticationCredentials.cs