学步园

上一篇博客写的主要是自定义标注，但是在实际项目开发过程中，所用到的标注类型各式各样。直接在Xaml页面的Resources中定义标注，既不易于编写，也不易于管理。所以最好是创建ControlTemplate的Xaml模板文件来管理自定义的内容。

例如|：

<ControlTemplate
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006">
    <Canvas>
        <Canvas.Resources>
            <Style TargetType="Grid" x:Key="kvTipStyle">
                <Setter Property="Background" Value="Transparent"/>
                <Setter Property="Height" Value="32"/>
                <Setter Property="Width" Value="32"/>
                <Setter Property="Canvas.Top" Value="-16"/>
                <Setter Property="Canvas.Left" Value="-16"/>
            </Style>
            <Style TargetType="Ellipse" x:Key="kvEllipseStyle">
                <Setter Property="Height" Value="7"/>
                <Setter Property="Width" Value="7"/>
                <Setter Property="Fill" Value="#P0000P"/>
                <Setter Property="Stroke" Value="Black"/>
                <Setter Property="StrokeThickness" Value="0.5"/>
            </Style>
        </Canvas.Resources>
        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="CommonStates">
                <VisualState x:Name="Normal"/>
                <VisualState x:Name="MouseOver">
                    <Storyboard>
                        <DoubleAnimation BeginTime="00:00:00" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)" From="1" To="1.5" Duration="00:00:0.5" />
                        <DoubleAnimation BeginTime="0:0:0" Storyboard.TargetName="image" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleY)" From="1" To="1.5" Duration="00:00:0.5" />
                    </Storyboard>
                </VisualState>
            </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
        <Grid Style="{StaticResource kvTipStyle}">
            <Image x:Name="image" RenderTransformOrigin="0.5,0.5"  Width="25" Height="25" Source="{Binding Attributes[PicPath]}">
                <Image.RenderTransform>
                    <ScaleTransform />
                </Image.RenderTransform>
            </Image>
        </Grid>
    </Canvas>
</ControlTemplate >

解决方案结构：

下面是加载模板页的方法：

  /// <summary>
  /// 获取标注
  /// </summary>
  /// <param name="_color">设置颜色</param>
  /// <returns></returns>
 public static Symbol GetSymbol(SymbolMode mode,string _markColor,string _fontColor)
 {
     MarkerSymbol sy = new MarkerSymbol();
     try
     {
          string contentStr = new StreamReader(
                        Application.GetResourceStream(
                                new Uri(string.Format("/Demo;component/Template/{0}Tp.xaml", mode.ToString()), UriKind.RelativeOrAbsolute)
                                ).Stream).ReadToEnd();
          contentStr = contentStr.Replace("#P0000P", _markColor);
          contentStr = contentStr.Replace("#F0000F", _fontColor);
          sy.ControlTemplate = (ControlTemplate)XamlReader.Load(contentStr);
      }
      catch { }
     return sy;
 }