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Added PushpinBorder
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Clemens
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179
MapControl/WPF/PushpinBorder.WPF.cs
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179
MapControl/WPF/PushpinBorder.WPF.cs
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// XAML Map Control - https://github.com/ClemensFischer/XAML-Map-Control
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// © 2022 Clemens Fischer
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// Licensed under the Microsoft Public License (Ms-PL)
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using System;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
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namespace MapControl
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{
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public class PushpinBorder : Decorator
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{
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public static readonly DependencyProperty BackgroundProperty = DependencyProperty.Register(
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nameof(Background), typeof(Brush), typeof(PushpinBorder),
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new FrameworkPropertyMetadata(null,
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FrameworkPropertyMetadataOptions.AffectsRender));
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public static readonly DependencyProperty BorderBrushProperty = DependencyProperty.Register(
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nameof(BorderBrush), typeof(Brush), typeof(PushpinBorder),
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new FrameworkPropertyMetadata(null,
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FrameworkPropertyMetadataOptions.AffectsRender));
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public static readonly DependencyProperty CornerRadiusProperty = DependencyProperty.Register(
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nameof(CornerRadius), typeof(CornerRadius), typeof(PushpinBorder),
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new FrameworkPropertyMetadata(new CornerRadius(),
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FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender));
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public static readonly DependencyProperty PaddingProperty = DependencyProperty.Register(
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nameof(Padding), typeof(Thickness), typeof(PushpinBorder),
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new FrameworkPropertyMetadata(new Thickness(2),
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FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender));
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public static readonly DependencyProperty BorderThicknessProperty = DependencyProperty.Register(
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nameof(BorderThickness), typeof(double), typeof(PushpinBorder),
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new FrameworkPropertyMetadata(0d,
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FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender));
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public static readonly DependencyProperty ArrowSizeProperty = DependencyProperty.Register(
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nameof(ArrowSize), typeof(Size), typeof(PushpinBorder),
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new FrameworkPropertyMetadata(new Size(10d, 20d),
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FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender));
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public Brush Background
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{
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get { return (Brush)GetValue(BackgroundProperty); }
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set { SetValue(BackgroundProperty, value); }
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}
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public Brush BorderBrush
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{
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get { return (Brush)GetValue(BorderBrushProperty); }
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set { SetValue(BorderBrushProperty, value); }
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}
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public double BorderThickness
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{
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get { return (double)GetValue(BorderThicknessProperty); }
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set { SetValue(BorderThicknessProperty, value); }
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}
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public CornerRadius CornerRadius
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{
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get { return (CornerRadius)GetValue(CornerRadiusProperty); }
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set { SetValue(CornerRadiusProperty, value); }
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}
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public Thickness Padding
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{
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get { return (Thickness)GetValue(PaddingProperty); }
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set { SetValue(PaddingProperty, value); }
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}
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public Size ArrowSize
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{
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get { return (Size)GetValue(ArrowSizeProperty); }
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set { SetValue(ArrowSizeProperty, value); }
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}
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protected override Size MeasureOverride(Size constraint)
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{
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var width = Padding.Left + Padding.Right;
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var height = Padding.Top + Padding.Bottom;
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if (Child != null)
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{
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Child.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
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width += Child.DesiredSize.Width;
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height += Child.DesiredSize.Height;
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}
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var minWidth = Math.Max(
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CornerRadius.TopLeft + CornerRadius.TopRight,
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CornerRadius.BottomLeft + CornerRadius.BottomRight + ArrowSize.Width);
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var minHeight = Math.Max(
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CornerRadius.TopLeft + CornerRadius.BottomLeft,
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CornerRadius.TopRight + CornerRadius.BottomRight);
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return new Size(
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Math.Max(width, minWidth),
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Math.Max(height, minHeight) + ArrowSize.Height);
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}
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protected override Size ArrangeOverride(Size size)
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{
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if (Child != null)
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{
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Child.Arrange(new Rect(
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Padding.Left, Padding.Top, size.Width - Padding.Right, size.Height - Padding.Bottom));
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}
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return size;
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}
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protected override void OnRender(DrawingContext drawingContext)
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{
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var w = RenderSize.Width;
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var aw = ArrowSize.Width;
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var h1 = RenderSize.Height - ArrowSize.Height;
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var h2 = RenderSize.Height;
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var r1 = CornerRadius.TopLeft;
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var r2 = CornerRadius.TopRight;
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var r3 = CornerRadius.BottomRight;
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var r4 = CornerRadius.BottomLeft;
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var pen = new Pen
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{
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Brush = BorderBrush,
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Thickness = BorderThickness,
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LineJoin = PenLineJoin.Round
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};
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var geometry = new StreamGeometry();
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using (var context = geometry.Open())
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{
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context.BeginFigure(new Point(0d, r1), true, true);
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context.ArcTo(new Point(r1, 0d), new Size(r1, r1), 0d, false, SweepDirection.Clockwise, true, true);
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context.LineTo(new Point(w - r2, 0d), true, true);
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context.ArcTo(new Point(w, r2), new Size(r2, r2), 0d, false, SweepDirection.Clockwise, true, true);
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if (HorizontalAlignment == HorizontalAlignment.Right)
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{
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context.LineTo(new Point(w, h2), true, true);
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context.LineTo(new Point(w - aw, h1), true, true);
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}
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else
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{
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context.LineTo(new Point(w, h1 - r3), true, true);
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context.ArcTo(new Point(w - r3, h1), new Size(r3, r3), 0d, false, SweepDirection.Clockwise, true, true);
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}
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if (HorizontalAlignment != HorizontalAlignment.Left && HorizontalAlignment != HorizontalAlignment.Right)
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{
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context.LineTo(new Point((w + aw) / 2d, h1), true, true);
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context.LineTo(new Point(w / 2d, h2), true, true);
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context.LineTo(new Point((w - aw) / 2d, h1), true, true);
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}
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if (HorizontalAlignment == HorizontalAlignment.Left)
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{
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context.LineTo(new Point(aw, h1), true, true);
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context.LineTo(new Point(0d, h2), true, true);
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}
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else
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{
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context.LineTo(new Point(r4, h1), true, true);
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context.ArcTo(new Point(0d, h1 - r4), new Size(r4, r4), 0d, false, SweepDirection.Clockwise, true, true);
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}
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}
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drawingContext.DrawGeometry(Background, pen, geometry);
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base.OnRender(drawingContext);
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}
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}
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}
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@ -53,31 +53,23 @@
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<Style TargetType="map:Pushpin" BasedOn="{StaticResource ContentControlStyle}">
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<Setter Property="HorizontalAlignment" Value="Left"/>
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<Setter Property="VerticalAlignment" Value="Bottom"/>
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<Setter Property="Padding" Value="5,3"/>
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<Setter Property="Padding" Value="5"/>
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<Setter Property="Template">
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<Setter.Value>
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<ControlTemplate TargetType="map:Pushpin">
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition/>
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<RowDefinition Height="Auto"/>
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</Grid.RowDefinitions>
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<Border Background="{TemplateBinding Background}"
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BorderBrush="{TemplateBinding BorderBrush}"
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BorderThickness="1">
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<ContentPresenter Content="{TemplateBinding Content}"
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ContentTemplate="{TemplateBinding ContentTemplate}"
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ContentTemplateSelector="{TemplateBinding ContentTemplateSelector}"
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HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
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VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
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Margin="{TemplateBinding Padding}"/>
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</Border>
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<Path Grid.Row="1"
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Data="M0.5,-1.2 L0.5,15 10,-1.2"
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Fill="{TemplateBinding Background}"
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Stroke="{TemplateBinding BorderBrush}"
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StrokeThickness="1"/>
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</Grid>
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<map:PushpinBorder
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HorizontalAlignment="{TemplateBinding HorizontalAlignment}"
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Padding="{TemplateBinding Padding}"
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Background="{TemplateBinding Background}"
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BorderBrush="{TemplateBinding BorderBrush}"
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BorderThickness="1">
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<ContentPresenter
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Content="{TemplateBinding Content}"
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ContentTemplate="{TemplateBinding ContentTemplate}"
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ContentTemplateSelector="{TemplateBinding ContentTemplateSelector}"
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HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
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VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
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</map:PushpinBorder>
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</ControlTemplate>
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</Setter.Value>
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</Setter>
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@ -82,11 +82,13 @@
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<EventSetter Event="TouchDown" Handler="MapItemTouchDown"/>
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<Setter Property="AutoCollapse" Value="True"/>
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<Setter Property="Location" Value="{Binding Location}"/>
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<Setter Property="HorizontalAlignment" Value="Center"/>
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<Setter Property="VerticalAlignment" Value="Bottom"/>
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<Setter Property="Template">
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<Setter.Value>
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<ControlTemplate TargetType="map:MapItem">
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<map:Pushpin Content="{Binding Name}"/>
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<map:Pushpin Content="{Binding Name}"
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HorizontalAlignment="{TemplateBinding HorizontalAlignment}"/>
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</ControlTemplate>
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</Setter.Value>
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</Setter>
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