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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Animation;
namespace Microsoft.Windows.Themes
{
/// <summary>
/// The ScrollChrome element
/// This element is a theme-specific type that is used as an optimization
/// for a common complex rendering used in Aero
/// </summary>
public sealed class ScrollChrome : FrameworkElement
{
#region Constructors
static ScrollChrome()
{
IsEnabledProperty.OverrideMetadata(typeof(ScrollChrome), new FrameworkPropertyMetadata(new PropertyChangedCallback(OnEnabledChanged)));
}
/// <summary>
/// Instantiates a new instance of a ScrollChrome with no parent element.
/// </summary>
public ScrollChrome()
{
}
#endregion Constructors
#region Dynamic Properties
/// <summary>
/// Attached DependencyProperty to assign the orientation and type of the glyph
/// </summary>
public static readonly DependencyProperty ScrollGlyphProperty =
DependencyProperty.RegisterAttached(
"ScrollGlyph",
typeof(ScrollGlyph),
typeof(ScrollChrome),
new FrameworkPropertyMetadata(
ScrollGlyph.None,
FrameworkPropertyMetadataOptions.AffectsRender),
new ValidateValueCallback(IsValidScrollGlyph));
/// <summary>
/// Gets the value of the ScrollGlyph property on the object.
/// </summary>
/// <param name="element">The element to which the property is attached.</param>
/// <returns>The value of the property.</returns>
public static ScrollGlyph GetScrollGlyph(DependencyObject element)
{
ArgumentNullException.ThrowIfNull(element);
return (ScrollGlyph) element.GetValue(ScrollGlyphProperty);
}
/// <summary>
/// Attachs the value to the object.
/// </summary>
/// <param name="element">The element on which the value will be attached.</param>
/// <param name="value">The value to attach.</param>
public static void SetScrollGlyph(DependencyObject element, ScrollGlyph value)
{
ArgumentNullException.ThrowIfNull(element);
element.SetValue(ScrollGlyphProperty, value);
}
private ScrollGlyph ScrollGlyph
{
get { return (ScrollGlyph) GetValue(ScrollGlyphProperty); }
}
private static bool IsValidScrollGlyph(object o)
{
ScrollGlyph glyph = (ScrollGlyph)o;
return glyph == ScrollGlyph.None ||
glyph == ScrollGlyph.LeftArrow ||
glyph == ScrollGlyph.RightArrow ||
glyph == ScrollGlyph.UpArrow ||
glyph == ScrollGlyph.DownArrow ||
glyph == ScrollGlyph.VerticalGripper ||
glyph == ScrollGlyph.HorizontalGripper;
}
private static void OnEnabledChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
ScrollChrome chrome = ((ScrollChrome)o);
if (chrome.Animates)
{
if (((bool)e.NewValue))
{
if (chrome._localResources == null)
{
chrome._localResources = new LocalResources();
chrome.InvalidateVisual();
}
Duration duration = new Duration(TimeSpan.FromSeconds(0.3));
if (chrome._scrollGlyph == ScrollGlyph.HorizontalGripper ||
chrome._scrollGlyph == ScrollGlyph.VerticalGripper)
{
DoubleAnimation da = new DoubleAnimation(1, duration);
chrome.Glyph.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
da = new DoubleAnimation(0.63, duration);
chrome.GlyphShadow.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
}
else
{
DoubleAnimation da = new DoubleAnimation(1, duration);
chrome.Fill.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
chrome.OuterBorder.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, da);
da = new DoubleAnimation(0.63, duration);
chrome.InnerBorder.Brush.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
da = new DoubleAnimation(0.5, duration);
chrome.Shadow.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, da);
ColorAnimation ca = new ColorAnimation(Color.FromRgb(0x21, 0x21, 0x21), duration);
chrome.Glyph.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x57, 0x57, 0x57), duration);
chrome.Glyph.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0xB3, 0xB3, 0xB3), duration);
chrome.Glyph.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
}
}
else if (chrome._localResources == null)
{
chrome.InvalidateVisual();
}
else
{
Duration duration = new Duration(TimeSpan.FromSeconds(0.2));
if (chrome._scrollGlyph == ScrollGlyph.HorizontalGripper ||
chrome._scrollGlyph == ScrollGlyph.VerticalGripper)
{
DoubleAnimation da = new DoubleAnimation();
da.Duration = duration;
chrome.Glyph.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
chrome.GlyphShadow.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
}
else
{
DoubleAnimation da = new DoubleAnimation();
da.Duration = duration;
chrome.Fill.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
chrome.OuterBorder.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, da);
chrome.InnerBorder.Brush.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
chrome.Shadow.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, da);
ColorAnimation ca = new ColorAnimation();
ca.Duration = duration;
chrome.Glyph.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
chrome.Glyph.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
chrome.Glyph.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
}
}
}
else
{
chrome._localResources = null;
chrome.InvalidateVisual();
}
}
/// <summary>
/// DependencyProperty for <see cref="RenderMouseOver" /> property.
/// </summary>
public static readonly DependencyProperty RenderMouseOverProperty =
DependencyProperty.Register("RenderMouseOver",
typeof(bool),
typeof(ScrollChrome),
new FrameworkPropertyMetadata(
false,
FrameworkPropertyMetadataOptions.AffectsRender,
new PropertyChangedCallback(OnRenderMouseOverChanged)));
/// <summary>
/// When true the chrome renders with a mouse over look.
/// </summary>
public bool RenderMouseOver
{
get { return (bool)GetValue(RenderMouseOverProperty); }
set { SetValue(RenderMouseOverProperty, value); }
}
private static void OnRenderMouseOverChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
ScrollChrome chrome = ((ScrollChrome)o);
if (chrome.Animates)
{
if (chrome._localResources == null)
{
chrome._localResources = new LocalResources();
chrome.InvalidateVisual();
}
if (((bool)e.NewValue))
{
chrome.AnimateToHover();
}
else
{
Duration duration = new Duration(TimeSpan.FromSeconds(0.2));
ColorAnimation ca = new ColorAnimation();
ca.Duration = duration;
chrome.OuterBorder.Brush.BeginAnimation(SolidColorBrush.ColorProperty, ca);
chrome.Fill.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
chrome.Fill.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
chrome.Fill.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
chrome.Fill.GradientStops[3].BeginAnimation(GradientStop.ColorProperty, ca);
chrome.Glyph.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
chrome.Glyph.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
chrome.Glyph.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
}
}
else
{
chrome._localResources = null;
chrome.InvalidateVisual();
}
}
private void AnimateToHover()
{
Duration duration = new Duration(TimeSpan.FromSeconds(0.3));
ColorAnimation ca = new ColorAnimation(Color.FromRgb(0x3C, 0x7F, 0xB1), duration);
OuterBorder.Brush.BeginAnimation(SolidColorBrush.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0xE3, 0xF4, 0xFC), duration);
Fill.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0xD6, 0xEE, 0xFB), duration);
Fill.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0xA9, 0xDB, 0xF6), duration);
Fill.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0xA4, 0xD5, 0xEF), duration);
Fill.GradientStops[3].BeginAnimation(GradientStop.ColorProperty, ca);
if (_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper)
{
ca = new ColorAnimation(Color.FromRgb(0x15, 0x30, 0x3E), duration);
Glyph.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x3C, 0x7F, 0xB1), duration);
Glyph.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x9C, 0xCE, 0xE9), duration);
Glyph.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
}
else
{
ca = new ColorAnimation(Color.FromRgb(0x0D, 0x2A, 0x3A), duration);
Glyph.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x1F, 0x63, 0x8A), duration);
Glyph.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x2E, 0x97, 0xCF), duration);
Glyph.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
}
}
/// <summary>
/// DependencyProperty for <see cref="RenderPressed" /> property.
/// </summary>
public static readonly DependencyProperty RenderPressedProperty =
DependencyProperty.Register("RenderPressed",
typeof(bool),
typeof(ScrollChrome),
new FrameworkPropertyMetadata(
false,
FrameworkPropertyMetadataOptions.AffectsRender,
new PropertyChangedCallback(OnRenderPressedChanged)));
/// <summary>
/// When true the chrome renders with a pressed look.
/// </summary>
public bool RenderPressed
{
get { return (bool)GetValue(RenderPressedProperty); }
set { SetValue(RenderPressedProperty, value); }
}
private static void OnRenderPressedChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
ScrollChrome chrome = ((ScrollChrome)o);
if (chrome.Animates)
{
if (chrome._localResources == null)
{
chrome._localResources = new LocalResources();
chrome.InvalidateVisual();
}
if (((bool)e.NewValue))
{
Duration duration = new Duration(TimeSpan.FromSeconds(0.3));
ColorAnimation ca = new ColorAnimation(Color.FromRgb(0x15, 0x59, 0x8A), duration);
chrome.OuterBorder.Brush.BeginAnimation(SolidColorBrush.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0xCA, 0xEC, 0xF9), duration);
chrome.Fill.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0xAF, 0xE1, 0xF7), duration);
chrome.Fill.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x6F, 0xCA, 0xF0), duration);
chrome.Fill.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x66, 0xBA, 0xDD), duration);
chrome.Fill.GradientStops[3].BeginAnimation(GradientStop.ColorProperty, ca);
if (chrome._scrollGlyph == ScrollGlyph.HorizontalGripper ||
chrome._scrollGlyph == ScrollGlyph.VerticalGripper)
{
ca = new ColorAnimation(Color.FromRgb(0x0F, 0x24, 0x30), duration);
chrome.Glyph.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x2E, 0x73, 0x97), duration);
chrome.Glyph.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x8F, 0xB8, 0xCE), duration);
chrome.Glyph.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
}
else
{
ca = new ColorAnimation(Color.FromRgb(0x0E, 0x22, 0x2D), duration);
chrome.Glyph.GradientStops[0].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x2F, 0x79, 0x9E), duration);
chrome.Glyph.GradientStops[1].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x6B, 0xA0, 0xBC), duration);
chrome.Glyph.GradientStops[2].BeginAnimation(GradientStop.ColorProperty, ca);
}
}
else
{
chrome.AnimateToHover();
}
}
else
{
chrome._localResources = null;
chrome.InvalidateVisual();
}
}
#endregion Dynamic Properties
#region Protected Methods
/// <summary>
/// Updates DesiredSize of the ScrollChrome. Called by parent UIElement. This is the first pass of layout.
/// </summary>
/// <remarks>
/// ScrollChrome basically constrains the value of its Width and Height properties.
/// </remarks>
/// <param name="availableSize">Available size is an "upper limit" that the return value should not exceed.</param>
/// <returns>The ScrollChrome's desired size.</returns>
protected override Size MeasureOverride(Size availableSize)
{
_transform = null;
return new Size(0,0);
}
/// <summary>
/// ScrollChrome does no work here and returns arrangeSize.
/// </summary>
/// <param name="finalSize">Size the ContentPresenter will assume.</param>
protected override Size ArrangeOverride(Size finalSize)
{
_transform = null;
return finalSize;
}
/// <summary>
/// Render callback.
/// Note: Assumes all borders are 1 unit.
/// </summary>
protected override void OnRender(DrawingContext drawingContext)
{
Rect bounds = new Rect(0, 0, ActualWidth, ActualHeight);
_scrollGlyph = ScrollGlyph;
if ((bounds.Width >= 1.0) && (bounds.Height >= 1.0))
{
bounds.X += 0.5;
bounds.Y += 0.5;
bounds.Width -= 1.0;
bounds.Height -= 1.0;
}
switch (_scrollGlyph)
{
case ScrollGlyph.LeftArrow:
case ScrollGlyph.RightArrow:
case ScrollGlyph.HorizontalGripper:
if (bounds.Height >= 1.0)
{
bounds.Y += 1.0;
bounds.Height -= 1.0;
}
break;
case ScrollGlyph.UpArrow:
case ScrollGlyph.DownArrow:
case ScrollGlyph.VerticalGripper:
if (bounds.Width >= 1.0)
{
bounds.X += 1.0;
bounds.Width -= 1.0;
}
break;
}
DrawShadow(drawingContext, ref bounds);
DrawBorders(drawingContext, ref bounds);
DrawGlyph(drawingContext, ref bounds);
}
#endregion
#region Private Methods
private void DrawShadow(DrawingContext dc, ref Rect bounds)
{
if ((bounds.Width > 0.0) && (bounds.Height > 2.0))
{
Pen pen = Shadow;
if (pen != null)
{
dc.DrawRoundedRectangle(
null,
pen,
new Rect(bounds.X, bounds.Y + 2.0, bounds.Width, bounds.Height - 2.0),
3.0, 3.0);
}
bounds.Height -= 1.0;
bounds.Width = Math.Max(0.0, bounds.Width - 1.0);
}
}
private void DrawBorders(DrawingContext dc, ref Rect bounds)
{
if ((bounds.Width >= 2.0) && (bounds.Height >= 2.0))
{
Brush brush = Fill;
Pen pen = OuterBorder;
if (pen != null)
{
dc.DrawRoundedRectangle(
brush,
pen,
new Rect(bounds.X, bounds.Y, bounds.Width, bounds.Height),
1.0, 1.0);
brush = null; // Done with the fill
}
bounds.Inflate(-1.0, -1.0);
if ((bounds.Width >= 2.0) && (bounds.Height >= 2.0))
{
pen = InnerBorder;
if ((pen != null) || (brush != null))
{
dc.DrawRoundedRectangle(
brush,
pen,
new Rect(bounds.X, bounds.Y, bounds.Width, bounds.Height),
0.5, 0.5);
}
bounds.Inflate(-1.0, -1.0);
}
}
}
private void DrawGlyph(DrawingContext dc, ref Rect bounds)
{
if ((bounds.Width > 0.0) && (bounds.Height > 0.0))
{
Brush brush = Glyph;
if ((brush != null) && (_scrollGlyph != ScrollGlyph.None))
{
switch (_scrollGlyph)
{
case ScrollGlyph.HorizontalGripper:
DrawHorizontalGripper(dc, brush, bounds);
break;
case ScrollGlyph.VerticalGripper:
DrawVerticalGripper(dc, brush, bounds);
break;
case ScrollGlyph.LeftArrow:
case ScrollGlyph.RightArrow:
case ScrollGlyph.UpArrow:
case ScrollGlyph.DownArrow:
DrawArrow(dc, brush, bounds);
break;
}
}
}
}
private void DrawHorizontalGripper(DrawingContext dc, Brush brush, Rect bounds)
{
if ((bounds.Width > 15.0) && (bounds.Height > 2.0))
{
Brush glyphShadow = GlyphShadow;
double height = Math.Min(7.0, bounds.Height);
double shadowHeight = height + 1.0;
double x = bounds.X + ((bounds.Width * 0.5) - 4.0);
double y = bounds.Y + ((bounds.Height - height) * 0.5);
for (int i = 0; i < 9; i += 3)
{
if (glyphShadow != null)
{
dc.DrawRectangle(glyphShadow, null, new Rect(x + i - 0.5, y - 0.5, 3.0, shadowHeight));
}
dc.DrawRectangle(brush, null, new Rect(x + i, y, 2.0, height));
}
}
}
private void DrawVerticalGripper(DrawingContext dc, Brush brush, Rect bounds)
{
if ((bounds.Width > 2.0) && (bounds.Height > 15.0))
{
Brush glyphShadow = GlyphShadow;
double width = Math.Min(7.0, bounds.Width);
double shadowWidth = width + 1.0;
double x = bounds.X + ((bounds.Width - width) * 0.5);
double y = bounds.Y + ((bounds.Height * 0.5) - 4.0);
for (int i = 0; i < 9; i += 3)
{
if (glyphShadow != null)
{
dc.DrawRectangle(glyphShadow, null, new Rect(x - 0.5, y + i - 0.5, shadowWidth, 3.0));
}
dc.DrawRectangle(brush, null, new Rect(x, y + i, width, 2.0));
}
}
}
#region Arrow Geometry Generation
// Geometries for arrows don't change so use static versions to reduce working set
private static object _glyphAccess = new object();
private static Geometry _leftArrowGeometry;
private static Geometry _rightArrowGeometry;
private static Geometry _upArrowGeometry;
private static Geometry _downArrowGeometry;
private static Geometry LeftArrowGeometry
{
get
{
if (_leftArrowGeometry == null)
{
lock (_glyphAccess)
{
if (_leftArrowGeometry == null)
{
PathFigure figure = new PathFigure();
figure.StartPoint = new Point(4.0, 0.0);
figure.Segments.Add(new LineSegment(new Point(0, 3.5), true));
figure.Segments.Add(new LineSegment(new Point(4.0, 7.0), true));
figure.IsClosed = true;
figure.Freeze();
PathGeometry path = new PathGeometry();
path.Figures.Add(figure);
path.Freeze();
_leftArrowGeometry = path;
}
}
}
return _leftArrowGeometry;
}
}
private static Geometry RightArrowGeometry
{
get
{
if (_rightArrowGeometry == null)
{
lock (_glyphAccess)
{
if (_rightArrowGeometry == null)
{
PathFigure figure = new PathFigure();
figure.StartPoint = new Point(0.0, 0.0);
figure.Segments.Add(new LineSegment(new Point(4, 3.5), true));
figure.Segments.Add(new LineSegment(new Point(0.0, 7.0), true));
figure.IsClosed = true;
figure.Freeze();
PathGeometry path = new PathGeometry();
path.Figures.Add(figure);
path.Freeze();
_rightArrowGeometry = path;
}
}
}
return _rightArrowGeometry;
}
}
private static Geometry UpArrowGeometry
{
get
{
if (_upArrowGeometry == null)
{
lock (_glyphAccess)
{
if (_upArrowGeometry == null)
{
PathFigure figure = new PathFigure();
figure.StartPoint = new Point(0.0, 4.0);
figure.Segments.Add(new LineSegment(new Point(3.5, 0), true));
figure.Segments.Add(new LineSegment(new Point(7.0, 4.0), true));
figure.IsClosed = true;
figure.Freeze();
PathGeometry path = new PathGeometry();
path.Figures.Add(figure);
path.Freeze();
_upArrowGeometry = path;
}
}
}
return _upArrowGeometry;
}
}
private static Geometry DownArrowGeometry
{
get
{
if (_downArrowGeometry == null)
{
lock (_glyphAccess)
{
if (_downArrowGeometry == null)
{
PathFigure figure = new PathFigure();
figure.StartPoint = new Point(0.0, 0.0);
figure.Segments.Add(new LineSegment(new Point(3.5, 4.0), true));
figure.Segments.Add(new LineSegment(new Point(7.0, 0.0), true));
figure.IsClosed = true;
figure.Freeze();
PathGeometry path = new PathGeometry();
path.Figures.Add(figure);
path.Freeze();
_downArrowGeometry = path;
}
}
}
return _downArrowGeometry;
}
}
#endregion
private void DrawArrow(DrawingContext dc, Brush brush, Rect bounds)
{
if (_transform == null)
{
double glyphWidth = 7.0;
double glyphHeight = 4.0;
if (_scrollGlyph == ScrollGlyph.LeftArrow || _scrollGlyph == ScrollGlyph.RightArrow)
{
glyphWidth = 4.0;
glyphHeight = 7.0;
}
Matrix matrix = new Matrix();
if ((bounds.Width < glyphWidth) || (bounds.Height < glyphHeight))
{
double widthScale = Math.Min(glyphWidth, bounds.Width) / glyphWidth;
double heightScale = Math.Min(glyphHeight, bounds.Height) / glyphHeight;
double x = (bounds.X + (bounds.Width * 0.5)) / widthScale - (glyphWidth * 0.5);
double y = (bounds.Y + (bounds.Height * 0.5)) / heightScale - (glyphHeight * 0.5);
if (double.IsNaN(widthScale) || double.IsInfinity(widthScale) || double.IsNaN(heightScale) || double.IsInfinity(heightScale) ||
double.IsNaN(x) || double.IsInfinity(x) || double.IsNaN(y) || double.IsInfinity(y))
{
return;
}
matrix.Translate(x, y);
matrix.Scale(widthScale, heightScale);
}
else
{
double x = bounds.X + (bounds.Width * 0.5) - (glyphWidth * 0.5);
double y = bounds.Y + (bounds.Height * 0.5) - (glyphHeight * 0.5);
matrix.Translate(x, y);
}
_transform = new MatrixTransform();
_transform.Matrix = matrix;
}
dc.PushTransform(_transform);
switch (_scrollGlyph)
{
case ScrollGlyph.LeftArrow:
dc.DrawGeometry(brush, null, LeftArrowGeometry);
break;
case ScrollGlyph.RightArrow:
dc.DrawGeometry(brush, null, RightArrowGeometry);
break;
case ScrollGlyph.UpArrow:
dc.DrawGeometry(brush, null, UpArrowGeometry);
break;
case ScrollGlyph.DownArrow:
dc.DrawGeometry(brush, null, DownArrowGeometry);
break;
}
dc.Pop(); // Center and scaling transform
}
//
// 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
#region Data
private bool Animates
{
get
{
return SystemParameters.ClientAreaAnimation &&
RenderCapability.Tier > 0;
}
}
private static LinearGradientBrush CommonHorizontalThumbFill
{
get
{
if (_commonHorizontalThumbFill == null)
{
lock (_resourceAccess)
{
if (_commonHorizontalThumbFill == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(0, 1);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xF3, 0xF3, 0xF3), 0));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xE8, 0xE8, 0xE9), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xD6, 0xD6, 0xD8), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xBC, 0xBD, 0xC0), 1));
temp.Freeze();
// Static field must not be set until the local has been frozen
_commonHorizontalThumbFill = temp;
}
}
}
return _commonHorizontalThumbFill;
}
}
private static LinearGradientBrush CommonHorizontalThumbHoverFill
{
get
{
if (_commonHorizontalThumbHoverFill == null)
{
lock (_resourceAccess)
{
if (_commonHorizontalThumbHoverFill == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(0, 1);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xE3, 0xF4, 0xFC), 0));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xD6, 0xEE, 0xFB), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xA9, 0xDB, 0xF6), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xA4, 0xD5, 0xEF), 1));
temp.Freeze();
_commonHorizontalThumbHoverFill = temp;
}
}
}
return _commonHorizontalThumbHoverFill;
}
}
private static LinearGradientBrush CommonHorizontalThumbPressedFill
{
get
{
if (_commonHorizontalThumbPressedFill == null)
{
lock (_resourceAccess)
{
if (_commonHorizontalThumbPressedFill == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(0, 1);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xCA, 0xEC, 0xF9), 0));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xAF, 0xE1, 0xF7), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x6F, 0xCA, 0xF0), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x66, 0xBA, 0xDD), 1));
temp.Freeze();
_commonHorizontalThumbPressedFill = temp;
}
}
}
return _commonHorizontalThumbPressedFill;
}
}
private static LinearGradientBrush CommonVerticalThumbFill
{
get
{
if (_commonVerticalThumbFill == null)
{
lock (_resourceAccess)
{
if (_commonVerticalThumbFill == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(1, 0);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xF3, 0xF3, 0xF3), 0));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xE8, 0xE8, 0xE9), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xD6, 0xD6, 0xD8), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xBC, 0xBD, 0xC0), 1));
temp.Freeze();
_commonVerticalThumbFill = temp;
}
}
}
return _commonVerticalThumbFill;
}
}
private static LinearGradientBrush CommonVerticalThumbHoverFill
{
get
{
if (_commonVerticalThumbHoverFill == null)
{
lock (_resourceAccess)
{
if (_commonVerticalThumbHoverFill == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(1, 0);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xE3, 0xF4, 0xFC), 0));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xD6, 0xEE, 0xFB), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xA9, 0xDB, 0xF6), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xA4, 0xD5, 0xEF), 1));
temp.Freeze();
_commonVerticalThumbHoverFill = temp;
}
}
}
return _commonVerticalThumbHoverFill;
}
}
private static LinearGradientBrush CommonVerticalThumbPressedFill
{
get
{
if (_commonVerticalThumbPressedFill == null)
{
lock (_resourceAccess)
{
if (_commonVerticalThumbPressedFill == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(1, 0);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xCA, 0xEC, 0xF9), 0));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xAF, 0xE1, 0xF7), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x6F, 0xCA, 0xF0), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x66, 0xBA, 0xDD), 1));
temp.Freeze();
_commonVerticalThumbPressedFill = temp;
}
}
}
return _commonVerticalThumbPressedFill;
}
}
private LinearGradientBrush Fill
{
get
{
if (!Animates)
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.LeftArrow ||
_scrollGlyph == ScrollGlyph.RightArrow)
{
if (RenderPressed)
{
return CommonHorizontalThumbPressedFill;
}
else if (RenderMouseOver)
{
return CommonHorizontalThumbHoverFill;
}
else if (IsEnabled || _scrollGlyph == ScrollGlyph.HorizontalGripper)
{
return CommonHorizontalThumbFill;
}
else
{
return null;
}
}
else
{
if (RenderPressed)
{
return CommonVerticalThumbPressedFill;
}
else if (RenderMouseOver)
{
return CommonVerticalThumbHoverFill;
}
else if (IsEnabled || _scrollGlyph == ScrollGlyph.VerticalGripper)
{
return CommonVerticalThumbFill;
}
else
{
return null;
}
}
}
if (_localResources != null)
{
if (_localResources.Fill == null)
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper)
{
_localResources.Fill = CommonHorizontalThumbFill.Clone();
}
else if (_scrollGlyph == ScrollGlyph.VerticalGripper)
{
_localResources.Fill = CommonVerticalThumbFill.Clone();
}
else
{
if (_scrollGlyph == ScrollGlyph.LeftArrow ||
_scrollGlyph == ScrollGlyph.RightArrow)
{
_localResources.Fill = CommonHorizontalThumbFill.Clone();
}
else
{
_localResources.Fill = CommonVerticalThumbFill.Clone();
}
_localResources.Fill.Opacity = 0;
}
}
return _localResources.Fill;
}
else
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper)
{
return CommonHorizontalThumbFill;
}
else if (_scrollGlyph == ScrollGlyph.VerticalGripper)
{
return CommonVerticalThumbFill;
}
else
{
return null;
}
}
}
}
private static Pen CommonThumbOuterBorder
{
get
{
if (_commonThumbOuterBorder == null)
{
lock (_resourceAccess)
{
if (_commonThumbOuterBorder == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
temp.Brush = new SolidColorBrush(Color.FromRgb(0x95, 0x95, 0x95));
temp.Freeze();
_commonThumbOuterBorder = temp;
}
}
}
return _commonThumbOuterBorder;
}
}
private static Pen CommonThumbHoverOuterBorder
{
get
{
if (_commonThumbHoverOuterBorder == null)
{
lock (_resourceAccess)
{
if (_commonThumbHoverOuterBorder == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
temp.Brush = new SolidColorBrush(Color.FromRgb(0x3C, 0x7F, 0xB1));
temp.Freeze();
_commonThumbHoverOuterBorder = temp;
}
}
}
return _commonThumbHoverOuterBorder;
}
}
private static Pen CommonThumbPressedOuterBorder
{
get
{
if (_commonThumbPressedOuterBorder == null)
{
lock (_resourceAccess)
{
if (_commonThumbPressedOuterBorder == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
temp.Brush = new SolidColorBrush(Color.FromRgb(0x15, 0x59, 0x8A));
temp.Freeze();
_commonThumbPressedOuterBorder = temp;
}
}
}
return _commonThumbPressedOuterBorder;
}
}
private Pen OuterBorder
{
get
{
if (!Animates)
{
if (RenderPressed)
{
return CommonThumbPressedOuterBorder;
}
else if (RenderMouseOver)
{
return CommonThumbHoverOuterBorder;
}
else if (IsEnabled ||
_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper)
{
return CommonThumbOuterBorder;
}
else
{
return null;
}
}
if (_localResources != null)
{
if (_localResources.OuterBorder == null)
{
_localResources.OuterBorder = CommonThumbOuterBorder.Clone();
if (!(_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper))
{
_localResources.OuterBorder.Brush.Opacity = 0;
}
}
return _localResources.OuterBorder;
}
else
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper)
{
return CommonThumbOuterBorder;
}
else
{
return null;
}
}
}
}
private static Pen CommonThumbInnerBorder
{
get
{
if (_commonThumbInnerBorder == null)
{
lock (_resourceAccess)
{
if (_commonThumbInnerBorder == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
temp.Brush = new SolidColorBrush(Colors.White);
temp.Brush.Opacity = 0.63;
temp.Freeze();
_commonThumbInnerBorder = temp;
}
}
}
return _commonThumbInnerBorder;
}
}
private Pen InnerBorder
{
get
{
if (!Animates)
{
if (IsEnabled ||
_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper)
{
return CommonThumbInnerBorder;
}
else
{
return null;
}
}
if (_localResources != null)
{
if (_localResources.InnerBorder == null)
{
_localResources.InnerBorder = CommonThumbInnerBorder.Clone();
if (!(_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper))
{
_localResources.InnerBorder.Brush.Opacity = 0;
}
}
return _localResources.InnerBorder;
}
else
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper)
{
return CommonThumbInnerBorder;
}
else
{
return null;
}
}
}
}
private static Pen CommonThumbShadow
{
get
{
if (_commonThumbShadow == null)
{
lock (_resourceAccess)
{
if (_commonThumbShadow == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
temp.Brush = new SolidColorBrush(Color.FromRgb(0xCF, 0xCF, 0xCF));
temp.Brush.Opacity = 0.5;
temp.Freeze();
_commonThumbShadow = temp;
}
}
}
return _commonThumbShadow;
}
}
private Pen Shadow
{
get
{
if (!Animates)
{
if (IsEnabled ||
_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper)
{
return CommonThumbShadow;
}
else
{
return null;
}
}
if (_localResources != null)
{
if (_localResources.Shadow == null)
{
_localResources.Shadow = CommonThumbShadow.Clone();
if (!(_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper))
{
_localResources.Shadow.Brush.Opacity = 0;
}
}
return _localResources.Shadow;
}
else
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper)
{
return CommonThumbShadow;
}
else
{
return null;
}
}
}
}
private LinearGradientBrush CommonHorizontalThumbEnabledGlyph
{
get
{
if (_commonHorizontalThumbEnabledGlyph == null)
{
lock (_resourceAccess)
{
if (_commonHorizontalThumbEnabledGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(1, 0.05);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x00, 0x00, 0x00), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x97, 0x97, 0x97), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xCA, 0xCA, 0xCA), 1));
temp.Freeze();
_commonHorizontalThumbEnabledGlyph = temp;
}
}
}
return _commonHorizontalThumbEnabledGlyph;
}
}
private LinearGradientBrush CommonHorizontalThumbHoverGlyph
{
get
{
if (_commonHorizontalThumbHoverGlyph == null)
{
lock (_resourceAccess)
{
if (_commonHorizontalThumbHoverGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(1, 0.05);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x15, 0x30, 0x3E), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x3C, 0x7F, 0xB1), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x9C, 0xCE, 0xE9), 1));
temp.Freeze();
_commonHorizontalThumbHoverGlyph = temp;
}
}
}
return _commonHorizontalThumbHoverGlyph;
}
}
private LinearGradientBrush CommonHorizontalThumbPressedGlyph
{
get
{
if (_commonHorizontalThumbPressedGlyph == null)
{
lock (_resourceAccess)
{
if (_commonHorizontalThumbPressedGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(1, 0.05);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x0F, 0x24, 0x30), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x2E, 0x73, 0x97), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x8F, 0xB8, 0xCE), 1));
temp.Freeze();
_commonHorizontalThumbPressedGlyph = temp;
}
}
}
return _commonHorizontalThumbPressedGlyph;
}
}
private LinearGradientBrush CommonVerticalThumbEnabledGlyph
{
get
{
if (_commonVerticalThumbEnabledGlyph == null)
{
lock (_resourceAccess)
{
if (_commonVerticalThumbEnabledGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(0.05, 1);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x00, 0x00, 0x00), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x97, 0x97, 0x97), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xCA, 0xCA, 0xCA), 1));
temp.Freeze();
_commonVerticalThumbEnabledGlyph = temp;
}
}
}
return _commonVerticalThumbEnabledGlyph;
}
}
private LinearGradientBrush CommonVerticalThumbHoverGlyph
{
get
{
if (_commonVerticalThumbHoverGlyph == null)
{
lock (_resourceAccess)
{
if (_commonVerticalThumbHoverGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(0.05, 1);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x15, 0x30, 0x3E), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x3C, 0x7F, 0xB1), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x9C, 0xCE, 0xE9), 1));
temp.Freeze();
_commonVerticalThumbHoverGlyph = temp;
}
}
}
return _commonVerticalThumbHoverGlyph;
}
}
private LinearGradientBrush CommonVerticalThumbPressedGlyph
{
get
{
if (_commonVerticalThumbPressedGlyph == null)
{
lock (_resourceAccess)
{
if (_commonVerticalThumbPressedGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(0.05, 1);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x0F, 0x24, 0x30), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x2E, 0x73, 0x97), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x8F, 0xB8, 0xCE), 1));
temp.Freeze();
_commonVerticalThumbPressedGlyph = temp;
}
}
}
return _commonVerticalThumbPressedGlyph;
}
}
private LinearGradientBrush CommonButtonGlyph
{
get
{
if (_commonButtonGlyph == null)
{
lock (_resourceAccess)
{
if (_commonButtonGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.MappingMode = BrushMappingMode.Absolute;
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(4, 4);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x70, 0x70, 0x70), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x76, 0x76, 0x76), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xCB, 0xCB, 0xCB), 1));
temp.Freeze();
_commonButtonGlyph = temp;
}
}
}
return _commonButtonGlyph;
}
}
private LinearGradientBrush CommonButtonEnabledGlyph
{
get
{
if (_commonButtonEnabledGlyph == null)
{
lock (_resourceAccess)
{
if (_commonButtonEnabledGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.MappingMode = BrushMappingMode.Absolute;
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(4, 4);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x21, 0x21, 0x21), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x57, 0x57, 0x57), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0xB3, 0xB3, 0xB3), 1));
temp.Freeze();
_commonButtonEnabledGlyph = temp;
}
}
}
return _commonButtonEnabledGlyph;
}
}
private LinearGradientBrush CommonButtonHoverGlyph
{
get
{
if (_commonButtonHoverGlyph == null)
{
lock (_resourceAccess)
{
if (_commonButtonHoverGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.MappingMode = BrushMappingMode.Absolute;
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(4, 4);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x0D, 0x2A, 0x3A), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x1F, 0x63, 0x8A), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x2E, 0x97, 0xCF), 1));
temp.Freeze();
_commonButtonHoverGlyph = temp;
}
}
}
return _commonButtonHoverGlyph;
}
}
private static LinearGradientBrush CommonButtonPressedGlyph
{
get
{
if (_commonButtonPressedGlyph == null)
{
lock (_resourceAccess)
{
if (_commonButtonPressedGlyph == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.MappingMode = BrushMappingMode.Absolute;
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(4, 4);
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x0E, 0x22, 0x2D), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x2F, 0x79, 0x9E), 0.7));
temp.GradientStops.Add(new GradientStop(Color.FromRgb(0x6B, 0xA0, 0xBC), 1));
temp.Freeze();
_commonButtonPressedGlyph = temp;
}
}
}
return _commonButtonPressedGlyph;
}
}
private LinearGradientBrush Glyph
{
get
{
if (!Animates)
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper)
{
if (RenderPressed)
{
return CommonHorizontalThumbPressedGlyph;
}
else if (RenderMouseOver)
{
return CommonHorizontalThumbHoverGlyph;
}
else
{
return CommonHorizontalThumbEnabledGlyph;
}
}
else if (_scrollGlyph == ScrollGlyph.VerticalGripper)
{
if (RenderPressed)
{
return CommonVerticalThumbPressedGlyph;
}
else if (RenderMouseOver)
{
return CommonVerticalThumbHoverGlyph;
}
else
{
return CommonVerticalThumbEnabledGlyph;
}
}
else
{
if (RenderPressed)
{
return CommonButtonPressedGlyph;
}
else if (RenderMouseOver)
{
return CommonButtonHoverGlyph;
}
else if (IsEnabled)
{
return CommonButtonEnabledGlyph;
}
else
{
return CommonButtonGlyph;
}
}
}
if (_localResources != null)
{
if (_localResources.Glyph == null)
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper)
{
_localResources.Glyph = new LinearGradientBrush();
_localResources.Glyph.StartPoint = new Point(0, 0);
if (_scrollGlyph == ScrollGlyph.HorizontalGripper)
{
_localResources.Glyph.EndPoint = new Point(1, 0.05);
}
else
{
_localResources.Glyph.EndPoint = new Point(0.05, 1);
}
_localResources.Glyph.GradientStops.Add(new GradientStop(Color.FromRgb(0x00, 0x00, 0x00), 0.5));
_localResources.Glyph.GradientStops.Add(new GradientStop(Color.FromRgb(0x97, 0x97, 0x97), 0.7));
_localResources.Glyph.GradientStops.Add(new GradientStop(Color.FromRgb(0xCA, 0xCA, 0xCA), 1));
}
else
{
_localResources.Glyph = CommonButtonGlyph.Clone();
}
}
return _localResources.Glyph;
}
else
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper)
{
return CommonHorizontalThumbEnabledGlyph;
}
else if (_scrollGlyph == ScrollGlyph.VerticalGripper)
{
return CommonVerticalThumbEnabledGlyph;
}
else
{
return CommonButtonGlyph;
}
}
}
}
private static SolidColorBrush CommonThumbEnabledGlyphShadow
{
get
{
if (_commonThumbEnabledGlyphShadow == null)
{
lock (_resourceAccess)
{
if (_commonThumbEnabledGlyphShadow == null)
{
SolidColorBrush temp = new SolidColorBrush(Colors.White);
temp.Opacity = 0.63;
temp.Freeze();
_commonThumbEnabledGlyphShadow = temp;
}
}
}
return _commonThumbEnabledGlyphShadow;
}
}
private SolidColorBrush GlyphShadow
{
get
{
if (!Animates)
{
if ((_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper))
{
return CommonThumbEnabledGlyphShadow;
}
else
{
return null;
}
}
if (_localResources != null)
{
if (_localResources.GlyphShadow == null)
{
if (_scrollGlyph == ScrollGlyph.HorizontalGripper ||
_scrollGlyph == ScrollGlyph.VerticalGripper)
{
_localResources.GlyphShadow = new SolidColorBrush(Colors.White);
}
}
return _localResources.GlyphShadow;
}
else
{
return null;
}
}
}
// Common Resources
private static LinearGradientBrush _commonHorizontalThumbFill;
private static LinearGradientBrush _commonVerticalThumbFill;
private static Pen _commonThumbOuterBorder;
private static Pen _commonThumbInnerBorder;
private static Pen _commonThumbShadow;
private static LinearGradientBrush _commonHorizontalThumbEnabledGlyph;
private static LinearGradientBrush _commonVerticalThumbEnabledGlyph;
private static SolidColorBrush _commonThumbEnabledGlyphShadow;
private static LinearGradientBrush _commonHorizontalThumbHoverFill;
private static LinearGradientBrush _commonVerticalThumbHoverFill;
private static Pen _commonThumbHoverOuterBorder;
private static LinearGradientBrush _commonHorizontalThumbHoverGlyph;
private static LinearGradientBrush _commonVerticalThumbHoverGlyph;
private static LinearGradientBrush _commonHorizontalThumbPressedFill;
private static LinearGradientBrush _commonVerticalThumbPressedFill;
private static Pen _commonThumbPressedOuterBorder;
private static LinearGradientBrush _commonHorizontalThumbPressedGlyph;
private static LinearGradientBrush _commonVerticalThumbPressedGlyph;
private static LinearGradientBrush _commonButtonGlyph;
private static LinearGradientBrush _commonButtonEnabledGlyph;
private static LinearGradientBrush _commonButtonHoverGlyph;
private static LinearGradientBrush _commonButtonPressedGlyph;
private static object _resourceAccess = new object();
// Per instance data
private ScrollGlyph _scrollGlyph;
private MatrixTransform _transform;
private LocalResources _localResources;
private class LocalResources
{
public LinearGradientBrush Fill;
public Pen OuterBorder;
public Pen InnerBorder;
public Pen Shadow;
public LinearGradientBrush Glyph;
public SolidColorBrush GlyphShadow;
}
#endregion
}
}
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