Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Controls / WrapPanel.cs / 1 / WrapPanel.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // File: WrapPanel.cs // // Description: Contains the WrapPanel class. // Spec at http://avalon/layout/Specs/WrapPanel.xml // //--------------------------------------------------------------------------- using MS.Internal; using MS.Utility; using System.ComponentModel; using System.Diagnostics; using System.Reflection; using System.Windows.Threading; using System.Windows.Media; using System; namespace System.Windows.Controls { ////// WrapPanel is used to place child UIElements at sequential positions from left to the right /// and then "wrap" the lines of children from top to the bottom. /// /// All children get the layout partition of size ItemWidth x ItemHeight. /// /// public class WrapPanel : Panel { //------------------------------------------------------------------- // // Constructors // //------------------------------------------------------------------- #region Constructors ////// Default constructor /// public WrapPanel() : base() { _orientation = (Orientation) OrientationProperty.GetDefaultValue(DependencyObjectType); } #endregion //-------------------------------------------------------------------- // // Public Methods // //------------------------------------------------------------------- #region Public Methods #endregion //-------------------------------------------------------------------- // // Public Properties + Dependency Properties's // //-------------------------------------------------------------------- #region Public Properties private static bool IsWidthHeightValid(object value) { double v = (double)value; return (DoubleUtil.IsNaN(v)) || (v >= 0.0d && !Double.IsPositiveInfinity(v)); } ////// DependencyProperty for public static readonly DependencyProperty ItemWidthProperty = DependencyProperty.Register( "ItemWidth", typeof(double), typeof(WrapPanel), new FrameworkPropertyMetadata( Double.NaN, FrameworkPropertyMetadataOptions.AffectsMeasure), new ValidateValueCallback(IsWidthHeightValid)); ///property. /// /// The ItemWidth and ItemHeight properties specify the size of all items in the WrapPanel. /// Note that children of /// WrapPanel may have their own Width/Height properties set - the ItemWidth/ItemHeight /// specifies the size of "layout partition" reserved by WrapPanel for the child. /// If this property is not set (or set to "Auto" in markup or Double.NaN in code) - the size of layout /// partition is equal to DesiredSize of the child element. /// [TypeConverter(typeof(LengthConverter))] public double ItemWidth { get { return (double) GetValue(ItemWidthProperty); } set { SetValue(ItemWidthProperty, value); } } ////// DependencyProperty for public static readonly DependencyProperty ItemHeightProperty = DependencyProperty.Register( "ItemHeight", typeof(double), typeof(WrapPanel), new FrameworkPropertyMetadata( Double.NaN, FrameworkPropertyMetadataOptions.AffectsMeasure), new ValidateValueCallback(IsWidthHeightValid)); ///property. /// /// The ItemWidth and ItemHeight properties specify the size of all items in the WrapPanel. /// Note that children of /// WrapPanel may have their own Width/Height properties set - the ItemWidth/ItemHeight /// specifies the size of "layout partition" reserved by WrapPanel for the child. /// If this property is not set (or set to "Auto" in markup or Double.NaN in code) - the size of layout /// partition is equal to DesiredSize of the child element. /// [TypeConverter(typeof(LengthConverter))] public double ItemHeight { get { return (double) GetValue(ItemHeightProperty); } set { SetValue(ItemHeightProperty, value); } } ////// DependencyProperty for public static readonly DependencyProperty OrientationProperty = StackPanel.OrientationProperty.AddOwner( typeof(WrapPanel), new FrameworkPropertyMetadata( Orientation.Horizontal, FrameworkPropertyMetadataOptions.AffectsMeasure, new PropertyChangedCallback(OnOrientationChanged))); ///property. /// /// Specifies dimension of children positioning in absence of wrapping. /// Wrapping occurs in orthogonal direction. For example, if Orientation is Horizontal, /// the items try to form horizontal rows first and if needed are wrapped and form vertical stack of rows. /// If Orientation is Vertical, items first positioned in a vertical column, and if there is /// not enough space - wrapping creates additional columns in horizontal dimension. /// public Orientation Orientation { get { return _orientation; } set { SetValue(OrientationProperty, value); } } ////// private static void OnOrientationChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { WrapPanel p = (WrapPanel)d; p._orientation = (Orientation) e.NewValue; } private Orientation _orientation; #endregion //------------------------------------------------------------------- // // Protected Methods // //-------------------------------------------------------------------- #region Protected Methods private struct UVSize { internal UVSize (Orientation orientation, double width, double height) { U = V = 0d; _orientation = orientation; Width = width; Height = height; } internal UVSize (Orientation orientation) { U = V = 0d; _orientation = orientation; } internal double U; internal double V; private Orientation _orientation; internal double Width { get { return (_orientation == Orientation.Horizontal ? U : V); } set { if(_orientation == Orientation.Horizontal) U = value; else V = value; } } internal double Height { get { return (_orientation == Orientation.Horizontal ? V : U); } set { if(_orientation == Orientation.Horizontal) V = value; else U = value; } } } ////// /// protected override Size MeasureOverride(Size constraint) { UVSize curLineSize = new UVSize(Orientation); UVSize panelSize = new UVSize(Orientation); UVSize uvConstraint = new UVSize(Orientation, constraint.Width, constraint.Height); double itemWidth = ItemWidth; double itemHeight = ItemHeight; bool itemWidthSet = !DoubleUtil.IsNaN(itemWidth); bool itemHeightSet = !DoubleUtil.IsNaN(itemHeight); Size childConstraint = new Size( (itemWidthSet ? itemWidth : constraint.Width), (itemHeightSet ? itemHeight : constraint.Height)); UIElementCollection children = InternalChildren; for(int i=0, count = children.Count; i/// /// /// protected override Size ArrangeOverride(Size finalSize) { int firstInLine = 0; double itemWidth = ItemWidth; double itemHeight = ItemHeight; double accumulatedV = 0; double itemU = (Orientation == Orientation.Horizontal ? itemWidth : itemHeight); UVSize curLineSize = new UVSize(Orientation); UVSize uvFinalSize = new UVSize(Orientation, finalSize.Width, finalSize.Height); bool itemWidthSet = !DoubleUtil.IsNaN(itemWidth); bool itemHeightSet = !DoubleUtil.IsNaN(itemHeight); bool useItemU = (Orientation == Orientation.Horizontal ? itemWidthSet : itemHeightSet); UIElementCollection children = InternalChildren; for(int i=0, count = children.Count; i /// WrapPanel is used to place child UIElements at sequential positions from left to the right /// and then "wrap" the lines of children from top to the bottom. /// /// All children get the layout partition of size ItemWidth x ItemHeight. /// /// public class WrapPanel : Panel { //------------------------------------------------------------------- // // Constructors // //------------------------------------------------------------------- #region Constructors /// /// Default constructor /// public WrapPanel() : base() { _orientation = (Orientation) OrientationProperty.GetDefaultValue(DependencyObjectType); } #endregion //-------------------------------------------------------------------- // // Public Methods // //------------------------------------------------------------------- #region Public Methods #endregion //-------------------------------------------------------------------- // // Public Properties + Dependency Properties's // //-------------------------------------------------------------------- #region Public Properties private static bool IsWidthHeightValid(object value) { double v = (double)value; return (DoubleUtil.IsNaN(v)) || (v >= 0.0d && !Double.IsPositiveInfinity(v)); } ////// DependencyProperty for public static readonly DependencyProperty ItemWidthProperty = DependencyProperty.Register( "ItemWidth", typeof(double), typeof(WrapPanel), new FrameworkPropertyMetadata( Double.NaN, FrameworkPropertyMetadataOptions.AffectsMeasure), new ValidateValueCallback(IsWidthHeightValid)); ///property. /// /// The ItemWidth and ItemHeight properties specify the size of all items in the WrapPanel. /// Note that children of /// WrapPanel may have their own Width/Height properties set - the ItemWidth/ItemHeight /// specifies the size of "layout partition" reserved by WrapPanel for the child. /// If this property is not set (or set to "Auto" in markup or Double.NaN in code) - the size of layout /// partition is equal to DesiredSize of the child element. /// [TypeConverter(typeof(LengthConverter))] public double ItemWidth { get { return (double) GetValue(ItemWidthProperty); } set { SetValue(ItemWidthProperty, value); } } ////// DependencyProperty for public static readonly DependencyProperty ItemHeightProperty = DependencyProperty.Register( "ItemHeight", typeof(double), typeof(WrapPanel), new FrameworkPropertyMetadata( Double.NaN, FrameworkPropertyMetadataOptions.AffectsMeasure), new ValidateValueCallback(IsWidthHeightValid)); ///property. /// /// The ItemWidth and ItemHeight properties specify the size of all items in the WrapPanel. /// Note that children of /// WrapPanel may have their own Width/Height properties set - the ItemWidth/ItemHeight /// specifies the size of "layout partition" reserved by WrapPanel for the child. /// If this property is not set (or set to "Auto" in markup or Double.NaN in code) - the size of layout /// partition is equal to DesiredSize of the child element. /// [TypeConverter(typeof(LengthConverter))] public double ItemHeight { get { return (double) GetValue(ItemHeightProperty); } set { SetValue(ItemHeightProperty, value); } } ////// DependencyProperty for public static readonly DependencyProperty OrientationProperty = StackPanel.OrientationProperty.AddOwner( typeof(WrapPanel), new FrameworkPropertyMetadata( Orientation.Horizontal, FrameworkPropertyMetadataOptions.AffectsMeasure, new PropertyChangedCallback(OnOrientationChanged))); ///property. /// /// Specifies dimension of children positioning in absence of wrapping. /// Wrapping occurs in orthogonal direction. For example, if Orientation is Horizontal, /// the items try to form horizontal rows first and if needed are wrapped and form vertical stack of rows. /// If Orientation is Vertical, items first positioned in a vertical column, and if there is /// not enough space - wrapping creates additional columns in horizontal dimension. /// public Orientation Orientation { get { return _orientation; } set { SetValue(OrientationProperty, value); } } ////// private static void OnOrientationChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { WrapPanel p = (WrapPanel)d; p._orientation = (Orientation) e.NewValue; } private Orientation _orientation; #endregion //------------------------------------------------------------------- // // Protected Methods // //-------------------------------------------------------------------- #region Protected Methods private struct UVSize { internal UVSize (Orientation orientation, double width, double height) { U = V = 0d; _orientation = orientation; Width = width; Height = height; } internal UVSize (Orientation orientation) { U = V = 0d; _orientation = orientation; } internal double U; internal double V; private Orientation _orientation; internal double Width { get { return (_orientation == Orientation.Horizontal ? U : V); } set { if(_orientation == Orientation.Horizontal) U = value; else V = value; } } internal double Height { get { return (_orientation == Orientation.Horizontal ? V : U); } set { if(_orientation == Orientation.Horizontal) V = value; else U = value; } } } ////// /// protected override Size MeasureOverride(Size constraint) { UVSize curLineSize = new UVSize(Orientation); UVSize panelSize = new UVSize(Orientation); UVSize uvConstraint = new UVSize(Orientation, constraint.Width, constraint.Height); double itemWidth = ItemWidth; double itemHeight = ItemHeight; bool itemWidthSet = !DoubleUtil.IsNaN(itemWidth); bool itemHeightSet = !DoubleUtil.IsNaN(itemHeight); Size childConstraint = new Size( (itemWidthSet ? itemWidth : constraint.Width), (itemHeightSet ? itemHeight : constraint.Height)); UIElementCollection children = InternalChildren; for(int i=0, count = children.Count; i/// /// /// protected override Size ArrangeOverride(Size finalSize) { int firstInLine = 0; double itemWidth = ItemWidth; double itemHeight = ItemHeight; double accumulatedV = 0; double itemU = (Orientation == Orientation.Horizontal ? itemWidth : itemHeight); UVSize curLineSize = new UVSize(Orientation); UVSize uvFinalSize = new UVSize(Orientation, finalSize.Width, finalSize.Height); bool itemWidthSet = !DoubleUtil.IsNaN(itemWidth); bool itemHeightSet = !DoubleUtil.IsNaN(itemHeight); bool useItemU = (Orientation == Orientation.Horizontal ? itemWidthSet : itemHeightSet); UIElementCollection children = InternalChildren; for(int i=0, count = children.Count; i
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ExpressionHelper.cs
- StylusDownEventArgs.cs
- ClientEventManager.cs
- JapaneseCalendar.cs
- ObjectDataSourceFilteringEventArgs.cs
- ObjectDisposedException.cs
- GridViewCommandEventArgs.cs
- SQLBytes.cs
- CustomAttributeBuilder.cs
- IPHostEntry.cs
- WebConfigurationFileMap.cs
- CircleHotSpot.cs
- OutputWindow.cs
- ContentHostHelper.cs
- MetadataAssemblyHelper.cs
- XamlContextStack.cs
- X509ChainPolicy.cs
- Fx.cs
- DefaultEventAttribute.cs
- Section.cs
- LongValidatorAttribute.cs
- SettingsProviderCollection.cs
- ExceptionUtil.cs
- EventMappingSettings.cs
- DefaultTextStore.cs
- TableChangeProcessor.cs
- odbcmetadatacolumnnames.cs
- PKCS1MaskGenerationMethod.cs
- XmlBoundElement.cs
- SqlDataSourceSelectingEventArgs.cs
- IgnoreSectionHandler.cs
- ShapingWorkspace.cs
- Processor.cs
- OnOperation.cs
- MetadataSource.cs
- XmlSchemaSet.cs
- CommandPlan.cs
- Dynamic.cs
- PersonalizableAttribute.cs
- HttpWriter.cs
- XmlMembersMapping.cs
- MultilineStringEditor.cs
- MultiBindingExpression.cs
- SqlRewriteScalarSubqueries.cs
- RestHandler.cs
- RTTrackingProfile.cs
- MessageContractImporter.cs
- TlsnegoTokenProvider.cs
- CellPartitioner.cs
- DependentList.cs
- FontFamily.cs
- InkCanvasSelectionAdorner.cs
- ValidationPropertyAttribute.cs
- PropertyIDSet.cs
- SevenBitStream.cs
- DecimalFormatter.cs
- CategoryAttribute.cs
- CreateDataSourceDialog.cs
- UpdateTranslator.cs
- SecurityContext.cs
- ItemsPresenter.cs
- DictionaryEntry.cs
- FixedDSBuilder.cs
- Set.cs
- listitem.cs
- ByeOperation11AsyncResult.cs
- PenThreadPool.cs
- ExpressionList.cs
- ByteAnimationUsingKeyFrames.cs
- InkCanvas.cs
- TickBar.cs
- XmlChildEnumerator.cs
- SecurityContext.cs
- Latin1Encoding.cs
- HttpCapabilitiesSectionHandler.cs
- Size3D.cs
- VisualTransition.cs
- StrongNamePublicKeyBlob.cs
- TimeSpanConverter.cs
- SqlDataSourceTableQuery.cs
- CodeTypeReferenceCollection.cs
- AssemblyBuilder.cs
- TreeViewDataItemAutomationPeer.cs
- String.cs
- EndpointIdentityConverter.cs
- AtomServiceDocumentSerializer.cs
- GlyphCache.cs
- NativeMethods.cs
- ToolStripRenderer.cs
- PriorityRange.cs
- ArcSegment.cs
- path.cs
- WriteStateInfoBase.cs
- CriticalHandle.cs
- RepeatBehavior.cs
- SplitterPanel.cs
- PerformanceCounterNameAttribute.cs
- EditorPartChrome.cs
- TrackingMemoryStreamFactory.cs
- Speller.cs