ExtensionWindowHeader.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / View / ExtensionWindowHeader.cs / 1305376 / ExtensionWindowHeader.cs
                        
                        
                            //---------------------------------------------------------------- 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//---------------------------------------------------------------
namespace System.Activities.Presentation.View
{ 
    using System.ComponentModel;
    using System.Diagnostics.CodeAnalysis; 
    using System.Runtime; 
    using System.Windows;
    using System.Windows.Controls; 
    using System.Windows.Input;
    using System.Windows.Media;

    //This class is visual representation of WindowHeader like control, which is used with ExtenstionWindows to allow 
    //moving and closing. Actual moving logic is handled by ExtensionSurface class
    [TemplatePart(Name = "PART_Header")] 
    [TemplatePart(Name = "PART_CloseButton")] 
    class ExtensionWindowHeader : Control
    { 
        public static readonly DependencyProperty TitleProperty =
            DependencyProperty.Register("Title", typeof(string), typeof(ExtensionWindowHeader));

        public static readonly DependencyProperty ButtonCloseIconProperty = 
            DependencyProperty.Register("ButtonCloseIcon", typeof(DrawingBrush), typeof(ExtensionWindowHeader));
 
        public static readonly DependencyProperty IconProperty = 
            DependencyProperty.Register("Icon", typeof(DrawingBrush), typeof(ExtensionWindowHeader));
 
        public static readonly DependencyProperty DropDownMenuIconProperty =
            DependencyProperty.Register("DropDownMenuIcon", typeof(DrawingBrush), typeof(ExtensionWindowHeader));

 

        Button closeButton; 
        ExtensionWindow parent; 
        ExtensionSurface surface;
        Point offset; 


        [SuppressMessage(FxCop.Category.Performance, FxCop.Rule.InitializeReferenceTypeStaticFieldsInline,
            Justification = "Overriding metadata for dependency properties in static constructor is the way suggested by WPF")] 
        static ExtensionWindowHeader()
        { 
            DefaultStyleKeyProperty.OverrideMetadata( 
                typeof(ExtensionWindowHeader),
                new FrameworkPropertyMetadata(typeof(ExtensionWindowHeader))); 
        }

        public string Title
        { 
            get { return (string)GetValue(TitleProperty); }
            set { SetValue(TitleProperty, value); } 
        } 

        [Fx.Tag.KnownXamlExternal] 
        public DrawingBrush ButtonCloseIcon
        {
            get { return (DrawingBrush)GetValue(ButtonCloseIconProperty); }
            set { SetValue(ButtonCloseIconProperty, value); } 
        }
 
        [Fx.Tag.KnownXamlExternal] 
        public DrawingBrush Icon
        { 
            get { return (DrawingBrush)GetValue(IconProperty); }
            set { SetValue(IconProperty, value); }
        }
 
        [Fx.Tag.KnownXamlExternal]
        public DrawingBrush DropDownMenuIcon 
        { 
            get { return (DrawingBrush)GetValue(DropDownMenuIconProperty); }
            set { SetValue(DropDownMenuIconProperty, value); } 
        }

        public override void OnApplyTemplate()
        { 
            base.OnApplyTemplate();
            this.closeButton = this.Template.FindName("PART_CloseButton", this) as Button; 
            if (null != this.closeButton) 
            {
                this.closeButton.Click += new RoutedEventHandler(delegate(object sender, RoutedEventArgs e) 
                {
                    ExtensionWindow.RaiseWindowCloseEvent(this.parent);
                }
                    ); 
            }
        } 
 
        protected override void OnMouseLeftButtonDown(MouseButtonEventArgs args)
        { 
            base.OnMouseLeftButtonDown(args);
            if (ExtensionSurface.PlacementMode.Absolute == ExtensionSurface.GetMode(this.parent))
            {
                this.offset = Mouse.GetPosition(this); 
                Mouse.OverrideCursor = Cursors.Arrow;
                CaptureMouse(); 
            } 
        }
 
        protected override void OnMouseMove(MouseEventArgs args)
        {
            base.OnMouseMove(args);
            if (args.LeftButton == MouseButtonState.Pressed && this.IsMouseCaptured) 
            {
                Point moveTo = Mouse.GetPosition(this.surface); 
                moveTo.Offset(-offset.X, -offset.Y); 
                this.surface.SetWindowPosition(this.parent, moveTo);
            } 
        }

        protected override void OnMouseLeftButtonUp(MouseButtonEventArgs args)
        { 
            base.OnMouseLeftButtonUp(args);
            if (this.IsMouseCaptured) 
            { 
                Mouse.OverrideCursor = null;
                Mouse.Capture(null); 
            }
        }

        protected override void OnVisualParentChanged(DependencyObject oldParent) 
        {
            base.OnVisualParentChanged(oldParent); 
            if (!DesignerProperties.GetIsInDesignMode(this) && 
                !ExtensionWindow.TryGetParentExtensionWindow(this, out this.parent, out this.surface))
            { 
                Fx.Assert("ExtensionWindowHeader cannot be used outside ExtensionWindow");
            }
        }
 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//---------------------------------------------------------------- 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//---------------------------------------------------------------
namespace System.Activities.Presentation.View
{ 
    using System.ComponentModel;
    using System.Diagnostics.CodeAnalysis; 
    using System.Runtime; 
    using System.Windows;
    using System.Windows.Controls; 
    using System.Windows.Input;
    using System.Windows.Media;

    //This class is visual representation of WindowHeader like control, which is used with ExtenstionWindows to allow 
    //moving and closing. Actual moving logic is handled by ExtensionSurface class
    [TemplatePart(Name = "PART_Header")] 
    [TemplatePart(Name = "PART_CloseButton")] 
    class ExtensionWindowHeader : Control
    { 
        public static readonly DependencyProperty TitleProperty =
            DependencyProperty.Register("Title", typeof(string), typeof(ExtensionWindowHeader));

        public static readonly DependencyProperty ButtonCloseIconProperty = 
            DependencyProperty.Register("ButtonCloseIcon", typeof(DrawingBrush), typeof(ExtensionWindowHeader));
 
        public static readonly DependencyProperty IconProperty = 
            DependencyProperty.Register("Icon", typeof(DrawingBrush), typeof(ExtensionWindowHeader));
 
        public static readonly DependencyProperty DropDownMenuIconProperty =
            DependencyProperty.Register("DropDownMenuIcon", typeof(DrawingBrush), typeof(ExtensionWindowHeader));

 

        Button closeButton; 
        ExtensionWindow parent; 
        ExtensionSurface surface;
        Point offset; 


        [SuppressMessage(FxCop.Category.Performance, FxCop.Rule.InitializeReferenceTypeStaticFieldsInline,
            Justification = "Overriding metadata for dependency properties in static constructor is the way suggested by WPF")] 
        static ExtensionWindowHeader()
        { 
            DefaultStyleKeyProperty.OverrideMetadata( 
                typeof(ExtensionWindowHeader),
                new FrameworkPropertyMetadata(typeof(ExtensionWindowHeader))); 
        }

        public string Title
        { 
            get { return (string)GetValue(TitleProperty); }
            set { SetValue(TitleProperty, value); } 
        } 

        [Fx.Tag.KnownXamlExternal] 
        public DrawingBrush ButtonCloseIcon
        {
            get { return (DrawingBrush)GetValue(ButtonCloseIconProperty); }
            set { SetValue(ButtonCloseIconProperty, value); } 
        }
 
        [Fx.Tag.KnownXamlExternal] 
        public DrawingBrush Icon
        { 
            get { return (DrawingBrush)GetValue(IconProperty); }
            set { SetValue(IconProperty, value); }
        }
 
        [Fx.Tag.KnownXamlExternal]
        public DrawingBrush DropDownMenuIcon 
        { 
            get { return (DrawingBrush)GetValue(DropDownMenuIconProperty); }
            set { SetValue(DropDownMenuIconProperty, value); } 
        }

        public override void OnApplyTemplate()
        { 
            base.OnApplyTemplate();
            this.closeButton = this.Template.FindName("PART_CloseButton", this) as Button; 
            if (null != this.closeButton) 
            {
                this.closeButton.Click += new RoutedEventHandler(delegate(object sender, RoutedEventArgs e) 
                {
                    ExtensionWindow.RaiseWindowCloseEvent(this.parent);
                }
                    ); 
            }
        } 
 
        protected override void OnMouseLeftButtonDown(MouseButtonEventArgs args)
        { 
            base.OnMouseLeftButtonDown(args);
            if (ExtensionSurface.PlacementMode.Absolute == ExtensionSurface.GetMode(this.parent))
            {
                this.offset = Mouse.GetPosition(this); 
                Mouse.OverrideCursor = Cursors.Arrow;
                CaptureMouse(); 
            } 
        }
 
        protected override void OnMouseMove(MouseEventArgs args)
        {
            base.OnMouseMove(args);
            if (args.LeftButton == MouseButtonState.Pressed && this.IsMouseCaptured) 
            {
                Point moveTo = Mouse.GetPosition(this.surface); 
                moveTo.Offset(-offset.X, -offset.Y); 
                this.surface.SetWindowPosition(this.parent, moveTo);
            } 
        }

        protected override void OnMouseLeftButtonUp(MouseButtonEventArgs args)
        { 
            base.OnMouseLeftButtonUp(args);
            if (this.IsMouseCaptured) 
            { 
                Mouse.OverrideCursor = null;
                Mouse.Capture(null); 
            }
        }

        protected override void OnVisualParentChanged(DependencyObject oldParent) 
        {
            base.OnVisualParentChanged(oldParent); 
            if (!DesignerProperties.GetIsInDesignMode(this) && 
                !ExtensionWindow.TryGetParentExtensionWindow(this, out this.parent, out this.surface))
            { 
                Fx.Assert("ExtensionWindowHeader cannot be used outside ExtensionWindow");
            }
        }
 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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ExtensionWindowHeader.cs source code in C# .NET

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