using System;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Media;
namespace ComPDFKit.Controls.Common.BaseControl
{
#region EnumPlacement
public enum EnumPlacement
{
/// <summary>
/// 左上
/// </summary>
LeftTop,
/// <summary>
/// 左中
/// </summary>
LeftCenter,
/// <summary>
/// 左下
/// </summary>
LeftBottom,
/// <summary>
/// 右上
/// </summary>
RightTop,
/// <summary>
/// 右中
/// </summary>
RightCenter,
/// <summary>
/// 右下
/// </summary>
RightBottom,
/// <summary>
/// 上左
/// </summary>
TopLeft,
/// <summary>
/// 上中
/// </summary>
TopCenter,
/// <summary>
/// 上右
/// </summary>
TopRight,
/// <summary>
/// 下左
/// </summary>
BottomLeft,
/// <summary>
/// 下中
/// </summary>
BottomCenter,
/// <summary>
/// 下右
/// </summary>
BottomRight,
}
#endregion EnumPlacement
public class DoubleUtil
{
public static double DpiScaleX
{
get
{
int dx = 0;
int dy = 0;
GetDPI(out dx, out dy);
if (dx != 96)
{
return (double)dx / 96.0;
}
return 1.0;
}
}
public static double DpiScaleY
{
get
{
int dx = 0;
int dy = 0;
GetDPI(out dx, out dy);
if (dy != 96)
{
return (double)dy / 96.0;
}
return 1.0;
}
}
public static void GetDPI(out int dpix, out int dpiy)
{
dpix = 0;
dpiy = 0;
using (System.Management.ManagementClass mc = new System.Management.ManagementClass("Win32_DesktopMonitor"))
{
using (System.Management.ManagementObjectCollection moc = mc.GetInstances())
{
foreach (System.Management.ManagementObject each in moc)
{
dpix = int.Parse((each.Properties["PixelsPerXLogicalInch"].Value.ToString()));
dpiy = int.Parse((each.Properties["PixelsPerYLogicalInch"].Value.ToString()));
}
}
}
}
public static bool AreClose(double value1, double value2)
{
if (value1 == value2)
{
return true;
}
double num = (Math.Abs(value1) + Math.Abs(value2) + 10.0) * 2.2204460492503131E-16;
double num2 = value1 - value2;
return -num < num2 && num > num2;
}
[StructLayout(LayoutKind.Explicit)]
private struct NanUnion
{
[FieldOffset(0)]
internal double DoubleValue;
[FieldOffset(0)]
internal ulong UintValue;
}
public static bool IsNaN(double value)
{
DoubleUtil.NanUnion nanUnion = default(DoubleUtil.NanUnion);
nanUnion.DoubleValue = value;
ulong num = nanUnion.UintValue & 18442240474082181120uL;
ulong num2 = nanUnion.UintValue & 4503599627370495uL;
return (num == 9218868437227405312uL || num == 18442240474082181120uL) && num2 != 0uL;
}
}
public class UIElementEx
{
public static double RoundLayoutValue(double value, double dpiScale)
{
double num;
if (!DoubleUtil.AreClose(dpiScale, 1.0))
{
num = Math.Round(value * dpiScale) / dpiScale;
if (DoubleUtil.IsNaN(num) || double.IsInfinity(num) || DoubleUtil.AreClose(num, 1.7976931348623157E+308))
{
num = value;
}
}
else
{
num = Math.Round(value);
}
return num;
}
}
/// <summary>
/// 带三角形的气泡边框
/// </summary>
public class AngleBorder : Decorator
{
#region 依赖属性
public static readonly DependencyProperty PlacementProperty =
DependencyProperty.Register("Placement", typeof(EnumPlacement), typeof(AngleBorder),
new FrameworkPropertyMetadata(EnumPlacement.RightCenter, FrameworkPropertyMetadataOptions.AffectsRender, OnDirectionPropertyChangedCallback));
public EnumPlacement Placement
{
get { return (EnumPlacement)GetValue(PlacementProperty); }
set { SetValue(PlacementProperty, value); }
}
public static readonly DependencyProperty TailWidthProperty =
DependencyProperty.Register("TailWidth", typeof(double), typeof(AngleBorder), new PropertyMetadata(10d));
/// <summary>
/// 尾巴的宽度，默认值为7
/// </summary>
public double TailWidth
{
get { return (double)GetValue(TailWidthProperty); }
set { SetValue(TailWidthProperty, value); }
}
public static readonly DependencyProperty TailHeightProperty =
DependencyProperty.Register("TailHeight", typeof(double), typeof(AngleBorder), new PropertyMetadata(10d));
/// <summary>
/// 尾巴的高度，默认值为10
/// </summary>
public double TailHeight
{
get { return (double)GetValue(TailHeightProperty); }
set { SetValue(TailHeightProperty, value); }
}
public static readonly DependencyProperty TailVerticalOffsetProperty =
DependencyProperty.Register("TailVerticalOffset", typeof(double), typeof(AngleBorder), new PropertyMetadata(13d));
/// <summary>
/// 尾巴距离顶部的距离，默认值为10
/// </summary>
public double TailVerticalOffset
{
get { return (double)GetValue(TailVerticalOffsetProperty); }
set { SetValue(TailVerticalOffsetProperty, value); }
}
public static readonly DependencyProperty TailHorizontalOffsetProperty =
DependencyProperty.Register("TailHorizontalOffset", typeof(double), typeof(AngleBorder),
new PropertyMetadata(12d));
/// <summary>
/// 尾巴距离顶部的距离，默认值为10
/// </summary>
public double TailHorizontalOffset
{
get { return (double)GetValue(TailHorizontalOffsetProperty); }
set { SetValue(TailHorizontalOffsetProperty, value); }
}
public static readonly DependencyProperty BackgroundProperty =
DependencyProperty.Register("Background", typeof(Brush), typeof(AngleBorder)
, new PropertyMetadata(new SolidColorBrush(Color.FromRgb(255, 255, 255))));
/// <summary>
/// 背景色，默认值为#FFFFFF，白色
/// </summary>
public Brush Background
{
get { return (Brush)GetValue(BackgroundProperty); }
set { SetValue(BackgroundProperty, value); }
}
public static readonly DependencyProperty PaddingProperty =
DependencyProperty.Register("Padding", typeof(Thickness), typeof(AngleBorder)
, new PropertyMetadata(new Thickness(10, 5, 10, 5)));
/// <summary>
/// 内边距
/// </summary>
public Thickness Padding
{
get { return (Thickness)GetValue(PaddingProperty); }
set { SetValue(PaddingProperty, value); }
}
public static readonly DependencyProperty BorderBrushProperty =
DependencyProperty.Register("BorderBrush", typeof(Brush), typeof(AngleBorder)
, new PropertyMetadata(default(Brush)));
/// <summary>
/// 边框颜色
/// </summary>
public Brush BorderBrush
{
get { return (Brush)GetValue(BorderBrushProperty); }
set { SetValue(BorderBrushProperty, value); }
}
public static readonly DependencyProperty BorderThicknessProperty =
DependencyProperty.Register("BorderThickness", typeof(Thickness), typeof(AngleBorder), new PropertyMetadata(new Thickness(1d)));
/// <summary>
/// 边框大小
/// </summary>
public Thickness BorderThickness
{
get { return (Thickness)GetValue(BorderThicknessProperty); }
set { SetValue(BorderThicknessProperty, value); }
}
public static readonly DependencyProperty CornerRadiusProperty =
DependencyProperty.Register("CornerRadius", typeof(System.Windows.CornerRadius)
, typeof(AngleBorder), new PropertyMetadata(new CornerRadius(0)));
/// <summary>
/// 边框大小
/// </summary>
public System.Windows.CornerRadius CornerRadius
{
get { return (System.Windows.CornerRadius)GetValue(CornerRadiusProperty); }
set { SetValue(CornerRadiusProperty, value); }
}
#endregion 依赖属性
#region 方法重写
/// <summary>
/// 该方法用于测量整个控件的大小
/// </summary>
/// <param name="constraint"></param>
/// <returns>控件的大小</returns>
protected override Size MeasureOverride(Size constraint)
{
Thickness padding = this.Padding;
Size result = new Size();
if (Child != null)
{
//测量子控件的大小
Child.Measure(constraint);
//三角形在左边与右边的，整个容器的宽度则为：里面子控件的宽度 + 设置的padding + 三角形的宽度
//三角形在上面与下面的，整个容器的高度则为：里面子控件的高度 + 设置的padding + 三角形的高度
switch (Placement)
{
case EnumPlacement.LeftTop:
case EnumPlacement.LeftBottom:
case EnumPlacement.LeftCenter:
case EnumPlacement.RightTop:
case EnumPlacement.RightBottom:
case EnumPlacement.RightCenter:
result.Width = Child.DesiredSize.Width + padding.Left + padding.Right + this.TailWidth;
result.Height = Child.DesiredSize.Height + padding.Top + padding.Bottom;
break;
case EnumPlacement.TopLeft:
case EnumPlacement.TopCenter:
case EnumPlacement.TopRight:
case EnumPlacement.BottomLeft:
case EnumPlacement.BottomCenter:
case EnumPlacement.BottomRight:
result.Width = Child.DesiredSize.Width + padding.Left + padding.Right;
result.Height = Child.DesiredSize.Height + padding.Top + padding.Bottom + this.TailHeight;
break;
default:
break;
}
}
return result;
}
/// <summary>
/// 设置子控件的大小与位置
/// </summary>
/// <param name="arrangeSize"></param>
/// <returns></returns>
protected override Size ArrangeOverride(Size arrangeSize)
{
Thickness padding = this.Padding;
if (Child != null)
{
switch (Placement)
{
case EnumPlacement.LeftTop:
case EnumPlacement.LeftBottom:
case EnumPlacement.LeftCenter:
this.TailWidth = 6;
Child.Arrange(new Rect(new Point(padding.Left + this.TailWidth, padding.Top), Child.DesiredSize));
//ArrangeChildLeft();
break;
case EnumPlacement.RightTop:
case EnumPlacement.RightBottom:
case EnumPlacement.RightCenter:
ArrangeChildRight(padding);
break;
case EnumPlacement.TopLeft:
case EnumPlacement.TopRight:
case EnumPlacement.TopCenter:
Child.Arrange(new Rect(new Point(padding.Left, this.TailHeight + padding.Top), Child.DesiredSize));
break;
case EnumPlacement.BottomLeft:
case EnumPlacement.BottomRight:
case EnumPlacement.BottomCenter:
Child.Arrange(new Rect(new Point(padding.Left, padding.Top), Child.DesiredSize));
break;
default:
break;
}
}
return arrangeSize;
}
private void ArrangeChildRight(Thickness padding)
{
double x = padding.Left;
double y = padding.Top;
if (!Double.IsNaN(this.Height) && this.Height != 0)
{
y = (this.Height - (Child.DesiredSize.Height)) / 2;
}
Child.Arrange(new Rect(new Point(x, y), Child.DesiredSize));
}
/// <summary>
/// 绘制控件
/// </summary>
/// <param name="drawingContext"></param>
protected override void OnRender(DrawingContext drawingContext)
{
if (Child != null)
{
Geometry cg = null;
Brush brush = null;
Pen pen = new Pen();
pen.Brush = this.BorderBrush;
pen.Thickness = UIElementEx.RoundLayoutValue(BorderThickness.Left, DoubleUtil.DpiScaleX);
switch (Placement)
{
case EnumPlacement.LeftTop:
case EnumPlacement.LeftBottom:
case EnumPlacement.LeftCenter:
//生成小尾巴在左侧的图形和底色
cg = CreateGeometryTailAtLeft();
brush = CreateFillBrush();
break;
case EnumPlacement.RightTop:
case EnumPlacement.RightCenter:
case EnumPlacement.RightBottom:
//生成小尾巴在右侧的图形和底色
cg = CreateGeometryTailAtRight();
brush = CreateFillBrush();
break;
case EnumPlacement.TopLeft:
case EnumPlacement.TopCenter:
case EnumPlacement.TopRight:
//生成小尾巴在右侧的图形和底色
cg = CreateGeometryTailAtTop();
brush = CreateFillBrush();
break;
case EnumPlacement.BottomLeft:
case EnumPlacement.BottomCenter:
case EnumPlacement.BottomRight:
//生成小尾巴在右侧的图形和底色
cg = CreateGeometryTailAtBottom();
brush = CreateFillBrush();
break;
default:
break;
}
GuidelineSet guideLines = new GuidelineSet();
drawingContext.PushGuidelineSet(guideLines);
drawingContext.DrawGeometry(brush, pen, cg);
}
}
#endregion 方法重写
#region 私有方法
private Geometry CreateGeometryTailAtRight()
{
CombinedGeometry result = new CombinedGeometry();
this.TailHeight = 12;
this.TailWidth = 6;
switch (this.Placement)
{
case EnumPlacement.RightTop:
//不做任何处理
break;
case EnumPlacement.RightBottom:
this.TailVerticalOffset = this.ActualHeight - this.TailHeight - this.TailVerticalOffset;
break;
case EnumPlacement.RightCenter:
this.TailVerticalOffset = (this.ActualHeight - this.TailHeight) / 2;
break;
}
#region 绘制三角形
Point arcPoint1 = new Point(this.ActualWidth - TailWidth, TailVerticalOffset);
Point arcPoint2 = new Point(this.ActualWidth, TailVerticalOffset + TailHeight / 2);
Point arcPoint3 = new Point(this.ActualWidth - TailWidth, TailVerticalOffset + TailHeight);
LineSegment as1_2 = new LineSegment(arcPoint2, false);
LineSegment as2_3 = new LineSegment(arcPoint3, false);
PathFigure pf1 = new PathFigure();
pf1.IsClosed = false;
pf1.StartPoint = arcPoint1;
pf1.Segments.Add(as1_2);
pf1.Segments.Add(as2_3);
PathGeometry pg1 = new PathGeometry();
pg1.Figures.Add(pf1);
#endregion 绘制三角形
#region 绘制矩形边框
RectangleGeometry rg2 = new RectangleGeometry(new Rect(0, 0, this.ActualWidth - TailWidth, this.ActualHeight)
, CornerRadius.TopLeft, CornerRadius.BottomRight, new TranslateTransform(0.5, 0.5));
#endregion 绘制矩形边框
#region 合并两个图形
result.Geometry1 = pg1;
result.Geometry2 = rg2;
result.GeometryCombineMode = GeometryCombineMode.Union;
#endregion 合并两个图形
return result;
}
private Geometry CreateGeometryTailAtLeft()
{
CombinedGeometry result = new CombinedGeometry();
this.TailHeight = 12;
this.TailWidth = 6;
switch (this.Placement)
{
case EnumPlacement.LeftTop:
//不做任何处理
break;
case EnumPlacement.LeftBottom:
this.TailVerticalOffset = this.ActualHeight - this.TailHeight - this.TailVerticalOffset;
break;
case EnumPlacement.LeftCenter:
this.TailVerticalOffset = (this.ActualHeight - this.TailHeight) / 2;
break;
}
#region 绘制三角形
Point arcPoint1 = new Point(TailWidth, TailVerticalOffset);
Point arcPoint2 = new Point(0, TailVerticalOffset + TailHeight / 2);
Point arcPoint3 = new Point(TailWidth, TailVerticalOffset + TailHeight);
LineSegment as1_2 = new LineSegment(arcPoint2, false);
LineSegment as2_3 = new LineSegment(arcPoint3, false);
PathFigure pf = new PathFigure();
pf.IsClosed = false;
pf.StartPoint = arcPoint1;
pf.Segments.Add(as1_2);
pf.Segments.Add(as2_3);
PathGeometry g1 = new PathGeometry();
g1.Figures.Add(pf);
#endregion 绘制三角形
#region 绘制矩形边框
RectangleGeometry g2 = new RectangleGeometry(new Rect(TailWidth, 0, this.ActualWidth - this.TailWidth, this.ActualHeight)
, CornerRadius.TopLeft, CornerRadius.BottomRight);
#endregion 绘制矩形边框
#region 合并两个图形
result.Geometry1 = g1;
result.Geometry2 = g2;
result.GeometryCombineMode = GeometryCombineMode.Union;
#endregion 合并两个图形
return result;
}
private Geometry CreateGeometryTailAtTop()
{
CombinedGeometry result = new CombinedGeometry();
switch (this.Placement)
{
case EnumPlacement.TopLeft:
break;
case EnumPlacement.TopCenter:
this.TailHorizontalOffset = (this.ActualWidth - this.TailWidth) / 2;
break;
case EnumPlacement.TopRight:
this.TailHorizontalOffset = this.ActualWidth - this.TailWidth - this.TailHorizontalOffset;
break;
}
#region 绘制三角形
Point anglePoint1 = new Point(this.TailHorizontalOffset, this.TailHeight);
Point anglePoint2 = new Point(this.TailHorizontalOffset + (this.TailWidth / 2), 0);
Point anglePoint3 = new Point(this.TailHorizontalOffset + this.TailWidth, this.TailHeight);
LineSegment as1_2 = new LineSegment(anglePoint2, true);
LineSegment as2_3 = new LineSegment(anglePoint3, true);
PathFigure pf = new PathFigure();
pf.IsClosed = false;
pf.StartPoint = anglePoint1;
pf.Segments.Add(as1_2);
pf.Segments.Add(as2_3);
PathGeometry g1 = new PathGeometry();
g1.Figures.Add(pf);
#endregion 绘制三角形
#region 绘制矩形边框
RectangleGeometry g2 = new RectangleGeometry(new Rect(0, this.TailHeight, this.ActualWidth, this.ActualHeight - this.TailHeight)
, CornerRadius.TopLeft, CornerRadius.BottomRight);
#endregion 绘制矩形边框
#region 合并
result.Geometry1 = g1;
result.Geometry2 = g2;
result.GeometryCombineMode = GeometryCombineMode.Union;
#endregion 合并
return result;
}
private Geometry CreateGeometryTailAtBottom()
{
CombinedGeometry result = new CombinedGeometry();
switch (this.Placement)
{
case EnumPlacement.BottomLeft:
break;
case EnumPlacement.BottomCenter:
this.TailHorizontalOffset = (this.ActualWidth - this.TailWidth) / 2;
break;
case EnumPlacement.BottomRight:
this.TailHorizontalOffset = this.ActualWidth - this.TailWidth - this.TailHorizontalOffset;
break;
}
#region 绘制三角形
Point anglePoint1 = new Point(this.TailHorizontalOffset, this.ActualHeight - this.TailHeight);
Point anglePoint2 = new Point(this.TailHorizontalOffset + this.TailWidth / 2, this.ActualHeight);
Point anglePoint3 = new Point(this.TailHorizontalOffset + this.TailWidth, this.ActualHeight - this.TailHeight);
LineSegment as1_2 = new LineSegment(anglePoint2, true);
LineSegment as2_3 = new LineSegment(anglePoint3, true);
PathFigure pf = new PathFigure();
pf.IsClosed = false;
pf.StartPoint = anglePoint1;
pf.Segments.Add(as1_2);
pf.Segments.Add(as2_3);
PathGeometry g1 = new PathGeometry();
g1.Figures.Add(pf);
#endregion 绘制三角形
#region 绘制矩形边框
RectangleGeometry g2 = new RectangleGeometry(new Rect(0, 0, this.ActualWidth, this.ActualHeight - this.TailHeight)
, CornerRadius.TopLeft, CornerRadius.BottomRight);
#endregion 绘制矩形边框
#region 合并
result.Geometry1 = g1;
result.Geometry2 = g2;
result.GeometryCombineMode = GeometryCombineMode.Union;
#endregion 合并
return result;
}
private Brush CreateFillBrush()
{
Brush result = null;
GradientStopCollection gsc = new GradientStopCollection();
gsc.Add(new GradientStop(((SolidColorBrush)this.Background).Color, 0));
LinearGradientBrush backGroundBrush = new LinearGradientBrush(gsc, new Point(0, 0), new Point(0, 1));
result = backGroundBrush;
return result;
}
/// <summary>
/// 根据三角形方向设置消息框的水平位置，偏左还是偏右
/// </summary>
/// <param name="d"></param>
/// <param name="e"></param>
public static void OnDirectionPropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
AngleBorder angleBorder = d as AngleBorder;
if (angleBorder != null)
{
switch ((EnumPlacement)e.NewValue)
{
case EnumPlacement.LeftTop:
case EnumPlacement.LeftBottom:
case EnumPlacement.LeftCenter:
case EnumPlacement.RightTop:
case EnumPlacement.RightBottom:
case EnumPlacement.RightCenter:
angleBorder.TailWidth = 6;
angleBorder.TailHeight = 12;
break;
case EnumPlacement.TopLeft:
case EnumPlacement.TopCenter:
case EnumPlacement.TopRight:
case EnumPlacement.BottomLeft:
case EnumPlacement.BottomCenter:
case EnumPlacement.BottomRight:
angleBorder.TailWidth = 12;
angleBorder.TailHeight = 6;
break;
default:
break;
}
}
}
#endregion 私有方法
}
public class PopTip : Popup
{
#region private fields
private bool mIsLoaded = false;
private AngleBorder angleBorder;
#endregion private fields
#region DependencyProperty
#region PlacementEx
public EnumPlacement PlacementEx
{
get { return (EnumPlacement)GetValue(PlacementExProperty); }
set { SetValue(PlacementExProperty, value); }
}
public static readonly DependencyProperty PlacementExProperty =
DependencyProperty.Register("PlacementEx", typeof(EnumPlacement), typeof(PopTip)
, new PropertyMetadata(EnumPlacement.TopLeft, PlacementExChangedCallback));
private static void PlacementExChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
PopTip poptip = d as PopTip;
if (poptip != null)
{
EnumPlacement placement = (EnumPlacement)e.NewValue;
switch (placement)
{
case EnumPlacement.LeftTop:
break;
case EnumPlacement.LeftBottom:
break;
case EnumPlacement.LeftCenter:
break;
case EnumPlacement.RightTop:
break;
case EnumPlacement.RightBottom:
break;
case EnumPlacement.RightCenter:
break;
case EnumPlacement.TopLeft:
break;
case EnumPlacement.TopCenter:
poptip.Placement = PlacementMode.Top;
break;
case EnumPlacement.TopRight:
break;
case EnumPlacement.BottomLeft:
break;
case EnumPlacement.BottomCenter:
break;
case EnumPlacement.BottomRight:
break;
default:
break;
}
}
}
#endregion PlacementEx
#region Background
public Brush Background
{
get { return (Brush)GetValue(BackgroundProperty); }
set { SetValue(BackgroundProperty, value); }
}
public static readonly DependencyProperty BackgroundProperty =
DependencyProperty.Register("Background", typeof(Brush), typeof(PopTip), new PropertyMetadata(new SolidColorBrush(Color.FromRgb(109, 129, 154))));
#endregion Background
#region BorderThickness
public Thickness BorderThickness
{
get { return (Thickness)GetValue(BorderThicknessProperty); }
set { SetValue(BorderThicknessProperty, value); }
}
public static readonly DependencyProperty BorderThicknessProperty =
DependencyProperty.Register("BorderThickness", typeof(Thickness), typeof(PopTip), new PropertyMetadata(new Thickness(1)));
#endregion BorderThickness
#region BorderBrush
public Brush BorderBrush
{
get { return (Brush)GetValue(BorderBrushProperty); }
set { SetValue(BorderBrushProperty, value); }
}
public static readonly DependencyProperty BorderBrushProperty =
DependencyProperty.Register("BorderBrush", typeof(Brush), typeof(PopTip), new PropertyMetadata(new SolidColorBrush(Color.FromRgb(204, 206, 219))));
#endregion BorderBrush
#region CornerRadius
public CornerRadius CornerRadius
{
get { return (CornerRadius)GetValue(CornerRadiusProperty); }
set { SetValue(CornerRadiusProperty, value); }
}
public static readonly DependencyProperty CornerRadiusProperty =
DependencyProperty.Register("CornerRadius", typeof(CornerRadius), typeof(PopTip), new PropertyMetadata(new CornerRadius(5)));
#endregion CornerRadius
#endregion DependencyProperty
#region Override
protected override void OnInitialized(EventArgs e)
{
base.OnInitialized(e);
this.AllowsTransparency = true;
//this.StaysOpen = false;
UIElement element = this.Child;
this.Child = null;
Grid root = new Grid()
{
Margin = new Thickness(10),
};
angleBorder = new AngleBorder()
{
Background = this.Background,
CornerRadius = this.CornerRadius,
BorderThickness = this.BorderThickness,
BorderBrush = this.BorderBrush,
};
switch (this.PlacementEx)
{
case EnumPlacement.LeftTop:
angleBorder.Placement = EnumPlacement.RightTop;
break;
case EnumPlacement.LeftBottom:
angleBorder.Placement = EnumPlacement.RightBottom;
break;
case EnumPlacement.LeftCenter:
angleBorder.Placement = EnumPlacement.RightCenter;
break;
case EnumPlacement.RightTop:
angleBorder.Placement = EnumPlacement.LeftTop;
break;
case EnumPlacement.RightBottom:
angleBorder.Placement = EnumPlacement.LeftBottom;
break;
case EnumPlacement.RightCenter:
angleBorder.Placement = EnumPlacement.LeftCenter;
break;
case EnumPlacement.TopLeft:
angleBorder.Placement = EnumPlacement.BottomLeft;
break;
case EnumPlacement.TopCenter:
angleBorder.Placement = EnumPlacement.BottomCenter;
break;
case EnumPlacement.TopRight:
angleBorder.Placement = EnumPlacement.BottomRight;
break;
case EnumPlacement.BottomLeft:
angleBorder.Placement = EnumPlacement.TopLeft;
break;
case EnumPlacement.BottomCenter:
angleBorder.Placement = EnumPlacement.TopCenter;
break;
case EnumPlacement.BottomRight:
angleBorder.Placement = EnumPlacement.TopRight;
break;
default:
break;
}
//在原有控件基础上，最外层套一个AngleBorder
angleBorder.Child = element;
root.Children.Add(angleBorder);
this.Child = root;
}
protected override void OnOpened(EventArgs e)
{
base.OnOpened(e);
if (this.mIsLoaded)
{
return;
}
FrameworkElement targetElement = this.PlacementTarget as FrameworkElement;
FrameworkElement child = this.Child as FrameworkElement;
if (targetElement == null || child == null) return;
switch (this.PlacementEx)
{
case EnumPlacement.LeftTop:
this.Placement = PlacementMode.Left;
break;
case EnumPlacement.LeftBottom:
this.Placement = PlacementMode.Left;
this.VerticalOffset = targetElement.ActualHeight - child.ActualHeight;
break;
case EnumPlacement.LeftCenter:
this.Placement = PlacementMode.Left;
this.VerticalOffset = this.GetOffset(targetElement.ActualHeight, child.ActualHeight);
break;
case EnumPlacement.RightTop:
this.Placement = PlacementMode.Right;
break;
case EnumPlacement.RightBottom:
this.Placement = PlacementMode.Right;
this.VerticalOffset = targetElement.ActualHeight - child.ActualHeight;
break;
case EnumPlacement.RightCenter:
this.Placement = PlacementMode.Right;
this.VerticalOffset = this.GetOffset(targetElement.ActualHeight, child.ActualHeight);
break;
case EnumPlacement.TopLeft:
this.Placement = PlacementMode.Top;
break;
case EnumPlacement.TopCenter:
this.Placement = PlacementMode.Top;
this.HorizontalOffset = this.GetOffset(targetElement.ActualWidth, child.ActualWidth);
break;
case EnumPlacement.TopRight:
this.Placement = PlacementMode.Top;
this.HorizontalOffset = targetElement.ActualWidth - child.ActualWidth;
break;
case EnumPlacement.BottomLeft:
this.Placement = PlacementMode.Bottom;
break;
case EnumPlacement.BottomCenter:
this.Placement = PlacementMode.Bottom;
this.HorizontalOffset = this.GetOffset(targetElement.ActualWidth, child.ActualWidth);
break;
case EnumPlacement.BottomRight:
this.Placement = PlacementMode.Bottom;
this.HorizontalOffset = targetElement.ActualWidth - child.ActualWidth;
break;
}
this.mIsLoaded = true;
}
#endregion Override
#region private function
private double GetOffset(double targetSize, double poptipSize)
{
if (double.IsNaN(targetSize) || double.IsNaN(poptipSize))
{
return 0;
}
return (targetSize / 2.0) - (poptipSize / 2.0);
}
#endregion private function
}
}