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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.Windows.Shapes;
using System.Windows.Controls;
using System.Diagnostics;
using System.Threading;
using System.ComponentModel;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Animation;
using MS.Internal;
using System;
using System.Runtime.InteropServices;
using System.Security;
namespace Microsoft.Windows.Themes
{
/// <summary>
/// The ButtonChrome 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 ButtonChrome : Decorator
{
#region Constructors
static ButtonChrome()
{
IsEnabledProperty.OverrideMetadata(typeof(ButtonChrome), new FrameworkPropertyMetadata(true, FrameworkPropertyMetadataOptions.AffectsRender));
}
/// <summary>
/// Instantiates a new instance of a ButtonChrome with no parent element.
/// </summary>
/// <ExternalAPI/>
public ButtonChrome()
{
}
#endregion Constructors
#region Dynamic Properties
/// <summary>
/// DependencyProperty for <see cref="Background" /> property.
/// </summary>
public static readonly DependencyProperty BackgroundProperty =
Control.BackgroundProperty.AddOwner(
typeof(ButtonChrome),
new FrameworkPropertyMetadata(
null,
FrameworkPropertyMetadataOptions.AffectsRender));
/// <summary>
/// The Background property defines the brush used to fill the background of the button.
/// </summary>
public Brush Background
{
get { return (Brush) GetValue(BackgroundProperty); }
set { SetValue(BackgroundProperty, value); }
}
/// <summary>
/// DependencyProperty for <see cref="BorderBrush" /> property.
/// </summary>
public static readonly DependencyProperty BorderBrushProperty =
Border.BorderBrushProperty.AddOwner(
typeof(ButtonChrome),
new FrameworkPropertyMetadata(
null,
FrameworkPropertyMetadataOptions.AffectsRender));
/// <summary>
/// The BorderBrush property defines the brush used to draw the outer border.
/// </summary>
public Brush BorderBrush
{
get { return (Brush) GetValue(BorderBrushProperty); }
set { SetValue(BorderBrushProperty, value); }
}
/// <summary>
/// DependencyProperty for <see cref="RenderDefaulted" /> property.
/// </summary>
public static readonly DependencyProperty RenderDefaultedProperty =
DependencyProperty.Register("RenderDefaulted",
typeof(bool),
typeof(ButtonChrome),
new FrameworkPropertyMetadata(
false,
new PropertyChangedCallback(OnRenderDefaultedChanged)));
/// <summary>
/// When true the chrome renders with a mouse over look.
/// </summary>
public bool RenderDefaulted
{
get { return (bool)GetValue(RenderDefaultedProperty); }
set { SetValue(RenderDefaultedProperty, value); }
}
private static void OnRenderDefaultedChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
ButtonChrome chrome = ((ButtonChrome)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));
ColorAnimation ca = new ColorAnimation(Color.FromArgb(0xF9, 0x00, 0xCC, 0xFF), duration);
GradientStopCollection gsc = ((LinearGradientBrush)chrome.InnerBorderPen.Brush).GradientStops;
gsc[0].BeginAnimation(GradientStop.ColorProperty, ca);
gsc[1].BeginAnimation(GradientStop.ColorProperty, ca);
if (!chrome.RenderPressed)
{
// Create a repeating animation like:
// __/ \__/ \__/ \__...
DoubleAnimationUsingKeyFrames daukf = new DoubleAnimationUsingKeyFrames();
daukf.KeyFrames.Add(new LinearDoubleKeyFrame(1.0, TimeSpan.FromSeconds(0.5)));
daukf.KeyFrames.Add(new DiscreteDoubleKeyFrame(1.0, TimeSpan.FromSeconds(0.75)));
daukf.KeyFrames.Add(new LinearDoubleKeyFrame(0.0, TimeSpan.FromSeconds(2.0)));
daukf.RepeatBehavior = RepeatBehavior.Forever;
DoubleAnimationUsingKeyFrames.SetDesiredFrameRate(daukf, 10);
chrome.BackgroundOverlay.BeginAnimation(LinearGradientBrush.OpacityProperty, daukf);
chrome.BorderOverlayPen.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, daukf);
}
}
else if (chrome._localResources == null)
{
if (!chrome.RenderPressed)
{
chrome.InvalidateVisual();
}
}
else
{
Duration duration = new Duration(TimeSpan.FromSeconds(0.2));
if (!chrome.RenderPressed)
{
DoubleAnimation da = new DoubleAnimation();
da.Duration = duration;
chrome.BorderOverlayPen.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, da);
chrome.BackgroundOverlay.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
}
ColorAnimation ca = new ColorAnimation();
ca.Duration = duration;
GradientStopCollection gsc = ((LinearGradientBrush)chrome.InnerBorderPen.Brush).GradientStops;
gsc[0].BeginAnimation(GradientStop.ColorProperty, ca);
gsc[1].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(ButtonChrome),
new FrameworkPropertyMetadata(
false,
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)
{
ButtonChrome chrome = ((ButtonChrome)o);
if (chrome.Animates)
{
if (!chrome.RenderPressed)
{
if (((bool)e.NewValue))
{
if (chrome._localResources == null)
{
chrome._localResources = new LocalResources();
chrome.InvalidateVisual();
}
Duration duration = new Duration(TimeSpan.FromSeconds(0.3));
DoubleAnimation da = new DoubleAnimation(1, duration);
chrome.BorderOverlayPen.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, da);
chrome.BackgroundOverlay.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
}
else if (chrome._localResources == null)
{
chrome.InvalidateVisual();
}
else
{
if (chrome.RenderDefaulted)
{
// Since the mouse was over the button the opacity should be 1.0
// Create a repeating animation like:
// \__/ \__/ \__/ \_...
// But if the user quickly mouses over a button, the opacity may not be 1 yet
// so the first keyframe brings the opacity to 1
double currentOpacity = chrome.BackgroundOverlay.Opacity;
// This is the time needed to complete the animation to 1:
double to1 = (1.0 - currentOpacity) * 0.5;
DoubleAnimationUsingKeyFrames daukf = new DoubleAnimationUsingKeyFrames();
daukf.KeyFrames.Add(new LinearDoubleKeyFrame(1.0, TimeSpan.FromSeconds(to1)));
daukf.KeyFrames.Add(new DiscreteDoubleKeyFrame(1.0, TimeSpan.FromSeconds(to1 + 0.25)));
daukf.KeyFrames.Add(new LinearDoubleKeyFrame(0.0, TimeSpan.FromSeconds(to1 + 1.5)));
daukf.KeyFrames.Add(new LinearDoubleKeyFrame(currentOpacity, TimeSpan.FromSeconds(2)));
daukf.RepeatBehavior = RepeatBehavior.Forever;
DoubleAnimationUsingKeyFrames.SetDesiredFrameRate(daukf, 10);
chrome.BackgroundOverlay.BeginAnimation(LinearGradientBrush.OpacityProperty, daukf);
chrome.BorderOverlayPen.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, daukf);
}
else
{
Duration duration = new Duration(TimeSpan.FromSeconds(0.2));
DoubleAnimation da = new DoubleAnimation();
da.Duration = duration;
chrome.BackgroundOverlay.BeginAnimation(SolidColorBrush.OpacityProperty, da);
chrome.BorderOverlayPen.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, da);
}
}
}
}
else
{
chrome._localResources = null;
chrome.InvalidateVisual();
}
}
/// <summary>
/// DependencyProperty for <see cref="RenderPressed" /> property.
/// </summary>
public static readonly DependencyProperty RenderPressedProperty =
DependencyProperty.Register("RenderPressed",
typeof(bool),
typeof(ButtonChrome),
new FrameworkPropertyMetadata(
false,
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)
{
ButtonChrome chrome = ((ButtonChrome)o);
if (chrome.Animates)
{
if (((bool)e.NewValue))
{
if (chrome._localResources == null)
{
chrome._localResources = new LocalResources();
chrome.InvalidateVisual();
}
Duration duration = new Duration(TimeSpan.FromSeconds(0.1));
DoubleAnimation da = new DoubleAnimation(1, duration);
chrome.BackgroundOverlay.BeginAnimation(SolidColorBrush.OpacityProperty, da);
chrome.BorderOverlayPen.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, da);
chrome.LeftDropShadowBrush.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
chrome.TopDropShadowBrush.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
da = new DoubleAnimation(0, duration);
chrome.InnerBorderPen.Brush.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
ColorAnimation ca = new ColorAnimation(Color.FromRgb(0xC2, 0xE4, 0xF6), duration);
GradientStopCollection gsc = ((LinearGradientBrush)chrome.BackgroundOverlay).GradientStops;
gsc[0].BeginAnimation(GradientStop.ColorProperty, ca);
gsc[1].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0xAB, 0xDA, 0xF3), duration);
gsc[2].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x90, 0xCB, 0xEB), duration);
gsc[3].BeginAnimation(GradientStop.ColorProperty, ca);
ca = new ColorAnimation(Color.FromRgb(0x2C, 0x62, 0x8B), duration);
chrome.BorderOverlayPen.Brush.BeginAnimation(SolidColorBrush.ColorProperty, ca);
}
else if (chrome._localResources == null)
{
chrome.InvalidateVisual();
}
else
{
bool renderMouseOver = chrome.RenderMouseOver;
Duration duration = new Duration(TimeSpan.FromSeconds(0.1));
DoubleAnimation da = new DoubleAnimation();
da.Duration = duration;
chrome.LeftDropShadowBrush.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
chrome.TopDropShadowBrush.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
chrome.InnerBorderPen.Brush.BeginAnimation(LinearGradientBrush.OpacityProperty, da);
if (!renderMouseOver)
{
chrome.BorderOverlayPen.Brush.BeginAnimation(SolidColorBrush.OpacityProperty, da);
chrome.BackgroundOverlay.BeginAnimation(SolidColorBrush.OpacityProperty, da);
}
ColorAnimation ca = new ColorAnimation();
ca.Duration = duration;
chrome.BorderOverlayPen.Brush.BeginAnimation(SolidColorBrush.ColorProperty, ca);
GradientStopCollection gsc = ((LinearGradientBrush)chrome.BackgroundOverlay).GradientStops;
gsc[0].BeginAnimation(GradientStop.ColorProperty, ca);
gsc[1].BeginAnimation(GradientStop.ColorProperty, ca);
gsc[2].BeginAnimation(GradientStop.ColorProperty, ca);
gsc[3].BeginAnimation(GradientStop.ColorProperty, ca);
}
}
else
{
chrome._localResources = null;
chrome.InvalidateVisual();
}
}
/// <summary>
/// DependencyProperty for <see cref="RoundCorners" /> property.
/// </summary>
public static readonly DependencyProperty RoundCornersProperty =
DependencyProperty.Register("RoundCorners",
typeof(bool),
typeof(ButtonChrome),
new FrameworkPropertyMetadata(
true,
FrameworkPropertyMetadataOptions.AffectsRender));
/// <summary>
/// When true, the left border will have round corners, otherwise they will be square.
/// </summary>
public bool RoundCorners
{
get { return (bool)GetValue(RoundCornersProperty); }
set { SetValue(RoundCornersProperty, value); }
}
#endregion Dynamic Properties
#region Protected Methods
/// <summary>
/// Updates DesiredSize of the ButtonChrome. Called by parent UIElement. This is the first pass of layout.
/// </summary>
/// <remarks>
/// ButtonChrome basically inflates the desired size of its one child by 2 on all four sides
/// </remarks>
/// <param name="availableSize">Available size is an "upper limit" that the return value should not exceed.</param>
/// <returns>The ButtonChrome's desired size.</returns>
protected override Size MeasureOverride(Size availableSize)
{
Size desired;
UIElement child = Child;
if (child != null)
{
Size childConstraint = new Size();
bool isWidthTooSmall = (availableSize.Width < 4.0);
bool isHeightTooSmall = (availableSize.Height < 4.0);
if (!isWidthTooSmall)
{
childConstraint.Width = availableSize.Width - 4.0;
}
if (!isHeightTooSmall)
{
childConstraint.Height = availableSize.Height - 4.0;
}
child.Measure(childConstraint);
desired = child.DesiredSize;
if (!isWidthTooSmall)
{
desired.Width += 4.0;
}
if (!isHeightTooSmall)
{
desired.Height += 4.0;
}
}
else
{
desired = new Size(Math.Min(4.0, availableSize.Width), Math.Min(4.0, availableSize.Height));
}
return desired;
}
/// <summary>
/// ButtonChrome computes the position of its single child inside child's Margin and calls Arrange
/// on the child.
/// </summary>
/// <remarks>
/// ButtonChrome basically inflates the desired size of its one child by 2 on all four sides
/// </remarks>
/// <param name="finalSize">Size the ContentPresenter will assume.</param>
protected override Size ArrangeOverride(Size finalSize)
{
Rect childArrangeRect = new Rect();
childArrangeRect.Width = Math.Max(0d, finalSize.Width - 4.0);
childArrangeRect.Height = Math.Max(0d, finalSize.Height - 4.0);
childArrangeRect.X = (finalSize.Width - childArrangeRect.Width) * 0.5;
childArrangeRect.Y = (finalSize.Height - childArrangeRect.Height) * 0.5;
UIElement child = Child;
if (child != null)
{
child.Arrange(childArrangeRect);
}
return finalSize;
}
/// <summary>
/// Render callback.
/// </summary>
protected override void OnRender(DrawingContext drawingContext)
{
Rect bounds = new Rect(0, 0, ActualWidth, ActualHeight);
// Draw Background
DrawBackground(drawingContext, ref bounds);
// Draw Border dropshadows
DrawDropShadows(drawingContext, ref bounds);
// Draw outer border
DrawBorder(drawingContext, ref bounds);
// Draw innerborder
DrawInnerBorder(drawingContext, ref bounds);
}
private void DrawBackground(DrawingContext dc, ref Rect bounds)
{
if (!IsEnabled && !RoundCorners)
return;
Brush fill = Background;
if ((bounds.Width > 4.0) && (bounds.Height > 4.0))
{
Rect backgroundRect = new Rect(bounds.Left + 1.0,
bounds.Top + 1.0,
bounds.Width - 2.0,
bounds.Height - 2.0);
// Draw Background
if (fill != null)
dc.DrawRectangle(fill, null, backgroundRect);
// Draw BackgroundOverlay
fill = BackgroundOverlay;
if( fill != null)
dc.DrawRectangle(fill, null, backgroundRect);
}
}
// Draw the Pressed dropshadows
private void DrawDropShadows(DrawingContext dc, ref Rect bounds)
{
if ((bounds.Width > 4.0) && (bounds.Height > 4.0))
{
Brush leftShadow = LeftDropShadowBrush;
if (leftShadow != null)
{
dc.DrawRectangle(leftShadow, null, new Rect(1.0, 1.0, 2.0, bounds.Bottom - 2.0));
}
Brush topShadow = TopDropShadowBrush;
if (topShadow != null)
{
dc.DrawRectangle(topShadow, null, new Rect(1.0, 1.0, bounds.Right - 2.0, 2.0));
}
}
}
// Draw the main border
private void DrawBorder(DrawingContext dc, ref Rect bounds)
{
if ((bounds.Width >= 5.0) && (bounds.Height >= 5.0))
{
Brush border = BorderBrush;
Pen pen = null;
if (border != null)
{
if (_commonBorderPen == null) // Common case, if non-null, avoid the lock
{
lock (_resourceAccess ) // If non-null, lock to create the pen for thread safety
{
if (_commonBorderPen == null) // Check again in case _pen was created within the last line
{
// Assume that the first render of Button uses the most common brush for the app.
// This breaks down if (a) the first Button is disabled, (b) the first Button is
// customized, or (c) ButtonChrome becomes more broadly used than just on Button.
//
// If these cons sufficiently weaken the effectiveness of this cache, then we need
// to build a larger brush-to-pen mapping cache.
// If the brush is not already frozen, we need to create our own
// copy. Otherwise we will inadvertently freeze the user's
// BorderBrush when we freeze the pen below.
if (!border.IsFrozen && border.CanFreeze)
{
border = border.Clone();
border.Freeze();
}
Pen commonPen = new Pen(border, 1);
if (commonPen.CanFreeze)
{
// Only save frozen pens, some brushes such as VisualBrush
// can not be frozen
commonPen.Freeze();
_commonBorderPen = commonPen;
}
}
}
}
if (_commonBorderPen != null && border == _commonBorderPen.Brush)
{
pen = _commonBorderPen;
}
else
{
if (!border.IsFrozen && border.CanFreeze)
{
border = border.Clone();
border.Freeze();
}
pen = new Pen(border, 1);
if (pen.CanFreeze)
{
pen.Freeze();
}
}
}
Pen overlayPen = BorderOverlayPen;
if (pen != null || overlayPen != null)
{
if (RoundCorners)
{
Rect rect = new Rect(bounds.Left + 0.5,
bounds.Top + 0.5,
bounds.Width - 1.0,
bounds.Height - 1.0);
if (IsEnabled && pen != null)
dc.DrawRoundedRectangle(null, pen, rect, 2.75, 2.75);
if (overlayPen != null)
dc.DrawRoundedRectangle(null, overlayPen, rect, 2.75, 2.75);
}
else
{
// Left side is flat, have to generate a geometry because
// DrawRoundedRectangle does not let you specify per corner radii
PathFigure borderFigure = new PathFigure();
borderFigure.StartPoint = new Point(0.5, 0.5);
borderFigure.Segments.Add(new LineSegment(new Point(0.5, bounds.Bottom - 0.5), true));
borderFigure.Segments.Add(new LineSegment(new Point(bounds.Right - 2.5, bounds.Bottom - 0.5), true));
borderFigure.Segments.Add(new ArcSegment(new Point(bounds.Right - 0.5, bounds.Bottom - 2.5), new Size(2.0, 2.0), 0.0, false, SweepDirection.Counterclockwise, true));
borderFigure.Segments.Add(new LineSegment(new Point(bounds.Right - 0.5, bounds.Top + 2.5), true));
borderFigure.Segments.Add(new ArcSegment(new Point(bounds.Right - 2.5, bounds.Top + 0.5), new Size(2.0, 2.0), 0.0, false, SweepDirection.Counterclockwise, true));
borderFigure.IsClosed = true;
PathGeometry borderGeometry = new PathGeometry();
borderGeometry.Figures.Add(borderFigure);
if (IsEnabled && pen != null)
dc.DrawGeometry(null, pen, borderGeometry);
if (overlayPen != null)
dc.DrawGeometry(null, overlayPen, borderGeometry);
}
}
}
}
// Draw the inner border
private void DrawInnerBorder(DrawingContext dc, ref Rect bounds)
{
if (!IsEnabled && !RoundCorners)
return;
if ((bounds.Width >= 4.0) && (bounds.Height >= 4.0))
{
Pen innerBorder = InnerBorderPen;
if (innerBorder != null)
{
dc.DrawRoundedRectangle(null, innerBorder, new Rect(bounds.Left + 1.5, bounds.Top + 1.5, bounds.Width - 3.0, bounds.Height - 3.0), 1.75, 1.75);
}
}
}
#endregion
#region Private Properties
//
// 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 9; }
}
private bool Animates
{
get
{
return SystemParameters.PowerLineStatus == PowerLineStatus.Online &&
SystemParameters.ClientAreaAnimation &&
RenderCapability.Tier > 0 &&
IsEnabled;
}
}
private static LinearGradientBrush CommonHoverBackgroundOverlay
{
get
{
if (_commonHoverBackgroundOverlay == null)
{
lock (_resourceAccess)
{
if (_commonHoverBackgroundOverlay == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(0, 1);
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xEA, 0xF6, 0xFD), 0));
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xD9, 0xF0, 0xFC), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xBE, 0xE6, 0xFD), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xA7, 0xD9, 0xF5), 1));
temp.Freeze();
// Static field must not be set until the local has been frozen
_commonHoverBackgroundOverlay = temp;
}
}
}
return _commonHoverBackgroundOverlay;
}
}
private static LinearGradientBrush CommonPressedBackgroundOverlay
{
get
{
if (_commonPressedBackgroundOverlay == null)
{
lock (_resourceAccess)
{
if (_commonPressedBackgroundOverlay == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(0, 1);
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xC2, 0xE4, 0xF6), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xAB, 0xDA, 0xF3), 0.5));
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x90, 0xCB, 0xEB), 1));
temp.Freeze();
_commonPressedBackgroundOverlay = temp;
}
}
}
return _commonPressedBackgroundOverlay;
}
}
private static SolidColorBrush CommonDisabledBackgroundOverlay
{
get
{
if (_commonDisabledBackgroundOverlay == null)
{
lock (_resourceAccess)
{
if (_commonDisabledBackgroundOverlay == null)
{
SolidColorBrush temp = new SolidColorBrush(Color.FromRgb(0xF4, 0xF4, 0xF4));
temp.Freeze();
_commonDisabledBackgroundOverlay = temp;
}
}
}
return _commonDisabledBackgroundOverlay;
}
}
private Brush BackgroundOverlay
{
get
{
if (!IsEnabled)
{
return CommonDisabledBackgroundOverlay;
}
if (!Animates)
{
if (RenderPressed)
{
return CommonPressedBackgroundOverlay;
}
else if (RenderMouseOver)
{
return CommonHoverBackgroundOverlay;
}
else
{
return null;
}
}
if (_localResources != null)
{
if (_localResources.BackgroundOverlay == null)
{
_localResources.BackgroundOverlay = CommonHoverBackgroundOverlay.Clone();
_localResources.BackgroundOverlay.Opacity = 0;
}
return _localResources.BackgroundOverlay;
}
else
{
return null;
}
}
}
private static Pen CommonHoverBorderOverlay
{
get
{
if (_commonHoverBorderOverlay == null)
{
lock (_resourceAccess)
{
if (_commonHoverBorderOverlay == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
temp.Brush = new SolidColorBrush(Color.FromRgb(0x3C, 0x7F, 0xB1));
temp.Freeze();
_commonHoverBorderOverlay = temp;
}
}
}
return _commonHoverBorderOverlay;
}
}
private static Pen CommonPressedBorderOverlay
{
get
{
if (_commonPressedBorderOverlay == null)
{
lock (_resourceAccess)
{
if (_commonPressedBorderOverlay == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
temp.Brush = new SolidColorBrush(Color.FromRgb(0x2C, 0x62, 0x8B));
temp.Freeze();
_commonPressedBorderOverlay = temp;
}
}
}
return _commonPressedBorderOverlay;
}
}
private static Pen CommonDisabledBorderOverlay
{
get
{
if (_commonDisabledBorderOverlay == null)
{
lock (_resourceAccess)
{
if (_commonDisabledBorderOverlay == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
temp.Brush = new SolidColorBrush(Color.FromRgb(0xAD, 0xB2, 0xB5));
temp.Freeze();
_commonDisabledBorderOverlay = temp;
}
}
}
return _commonDisabledBorderOverlay;
}
}
private Pen BorderOverlayPen
{
get
{
if (!IsEnabled)
{
if (RoundCorners)
{
return CommonDisabledBorderOverlay;
}
else
{
return null;
}
}
if (!Animates)
{
if (RenderPressed)
{
return CommonPressedBorderOverlay;
}
else if (RenderMouseOver)
{
return CommonHoverBorderOverlay;
}
else
{
return null;
}
}
if (_localResources != null)
{
if (_localResources.BorderOverlayPen == null)
{
_localResources.BorderOverlayPen = CommonHoverBorderOverlay.Clone();
_localResources.BorderOverlayPen.Brush.Opacity = 0;
}
return _localResources.BorderOverlayPen;
}
else
{
return null;
}
}
}
private static Pen CommonInnerBorderPen
{
get
{
if (_commonInnerBorderPen == null)
{
lock (_resourceAccess)
{
if (_commonInnerBorderPen == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
LinearGradientBrush brush = new LinearGradientBrush();
brush.StartPoint = new Point(0,0);
brush.EndPoint = new Point(0,1);
brush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFA,0xFF,0xFF,0xFF), 0));
brush.GradientStops.Add(new GradientStop(Color.FromArgb(0x85,0xFF,0xFF,0xFF), 1));
temp.Brush = brush;
temp.Freeze();
_commonInnerBorderPen = temp;
}
}
}
return _commonInnerBorderPen;
}
}
private static Pen CommonDefaultedInnerBorderPen
{
get
{
if (_commonDefaultedInnerBorderPen == null)
{
lock (_resourceAccess)
{
if (_commonDefaultedInnerBorderPen == null)
{
Pen temp = new Pen();
temp.Thickness = 1;
temp.Brush = new SolidColorBrush(Color.FromArgb(0xF9, 0x00, 0xCC, 0xFF));
temp.Freeze();
_commonDefaultedInnerBorderPen = temp;
}
}
}
return _commonDefaultedInnerBorderPen;
}
}
private Pen InnerBorderPen
{
get
{
if (!IsEnabled)
{
return CommonInnerBorderPen;
}
if (!Animates)
{
if (RenderPressed)
{
return null;
}
else if (RenderDefaulted)
{
return CommonDefaultedInnerBorderPen;
}
else
{
return CommonInnerBorderPen;
}
}
if (_localResources != null)
{
if (_localResources.InnerBorderPen == null)
{
_localResources.InnerBorderPen = CommonInnerBorderPen.Clone();
}
return _localResources.InnerBorderPen;
}
else
{
return CommonInnerBorderPen;
}
}
}
private static LinearGradientBrush CommonPressedLeftDropShadowBrush
{
get
{
if (_commonPressedLeftDropShadowBrush == null)
{
lock (_resourceAccess)
{
if (_commonPressedLeftDropShadowBrush == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(1, 0);
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0x80, 0x33, 0x33, 0x33), 0));
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0x00, 0x33, 0x33, 0x33), 1));
temp.Freeze();
_commonPressedLeftDropShadowBrush = temp;
}
}
}
return _commonPressedLeftDropShadowBrush;
}
}
private LinearGradientBrush LeftDropShadowBrush
{
get
{
if (!IsEnabled)
{
return null;
}
if (!Animates)
{
if (RenderPressed)
{
return CommonPressedLeftDropShadowBrush;
}
else
{
return null;
}
}
if (_localResources != null)
{
if (_localResources.LeftDropShadowBrush == null)
{
_localResources.LeftDropShadowBrush = CommonPressedLeftDropShadowBrush.Clone();
_localResources.LeftDropShadowBrush.Opacity = 0;
}
return _localResources.LeftDropShadowBrush;
}
else
{
return null;
}
}
}
private static LinearGradientBrush CommonPressedTopDropShadowBrush
{
get
{
if (_commonPressedTopDropShadowBrush == null)
{
lock (_resourceAccess)
{
if (_commonPressedTopDropShadowBrush == null)
{
LinearGradientBrush temp = new LinearGradientBrush();
temp.StartPoint = new Point(0, 0);
temp.EndPoint = new Point(0, 1);
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0x80, 0x33, 0x33, 0x33), 0));
temp.GradientStops.Add(new GradientStop(Color.FromArgb(0x00, 0x33, 0x33, 0x33), 1));
temp.Freeze();
_commonPressedTopDropShadowBrush = temp;
}
}
}
return _commonPressedTopDropShadowBrush;
}
}
private LinearGradientBrush TopDropShadowBrush
{
get
{
if (!IsEnabled)
{
return null;
}
if (!Animates)
{
if (RenderPressed)
{
return CommonPressedTopDropShadowBrush;
}
else
{
return null;
}
}
if (_localResources != null)
{
if (_localResources.TopDropShadowBrush == null)
{
_localResources.TopDropShadowBrush = CommonPressedTopDropShadowBrush.Clone();
_localResources.TopDropShadowBrush.Opacity = 0;
}
return _localResources.TopDropShadowBrush;
}
else
{
return null;
}
}
}
// Common LocalResources
private static Pen _commonBorderPen;
private static Pen _commonInnerBorderPen;
private static Pen _commonDisabledBorderOverlay;
private static SolidColorBrush _commonDisabledBackgroundOverlay;
private static Pen _commonDefaultedInnerBorderPen;
private static LinearGradientBrush _commonHoverBackgroundOverlay;
private static Pen _commonHoverBorderOverlay;
private static LinearGradientBrush _commonPressedBackgroundOverlay;
private static Pen _commonPressedBorderOverlay;
private static LinearGradientBrush _commonPressedLeftDropShadowBrush;
private static LinearGradientBrush _commonPressedTopDropShadowBrush;
private static object _resourceAccess = new object();
// Per instance resources
private LocalResources _localResources;
private class LocalResources
{
public Pen BorderOverlayPen;
public Pen InnerBorderPen;
public LinearGradientBrush BackgroundOverlay;
public LinearGradientBrush LeftDropShadowBrush;
public LinearGradientBrush TopDropShadowBrush;
}
#endregion
}
}
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