的Silverlight 3.0自定義光標在圖表

我可能忽視的東西時，我看到的解決方案，將是顯而易見的，但現在...的Silverlight 3.0自定義光標在圖表

我試圖使用自定義光標圖表區一個工具包內圖表。我爲圖表創建了一個ControlTemplate，併爲網格包含了光標。我顯示/隱藏遊標，並嘗試使用各種鼠標事件移動包含的網格。光標顯示在正確的時間，但我無法讓它移動到正確的位置。

這裏是控件模板（時髦的顏色只是試圖確定什麼樣的不同部分的模板屬於）：

 <dataVisTK:Title Content="{TemplateBinding Title}" 
         Style="{TemplateBinding TitleStyle}"/> 

     <Grid Grid.Row="1"> 

      <!-- Remove the Legend --> 
      <!--<dataVisTK:Legend 
     x:Name="Legend" 
     Title="{TemplateBinding LegendTitle}" 
     Style="{TemplateBinding LegendStyle}" 
     Grid.Column="1"/>--> 


      <chartingPrimitivesTK:EdgePanel x:Name="ChartArea" 
              Background="#EDAEAE" 
              Style="{TemplateBinding ChartAreaStyle}" 
              Grid.Column="0"> 
       <Grid Canvas.ZIndex="-1" 
         Background="#2008AE" 
         Style="{TemplateBinding PlotAreaStyle}"> 
       </Grid> 
       <Border Canvas.ZIndex="1" 
         BorderBrush="#FF250010" 
         BorderThickness="3" /> 

       <Grid x:Name="gridHandCursors" 
         Canvas.ZIndex="5" 
         Width="32" Height="32" 
         Visibility="Collapsed"> 
        <Image x:Name="cursorGrab" Width="32" 
          Source="Resources/grab.png" /> 
        <Image x:Name="cursorGrabbing" Width="32" 
          Source="Resources/grabbing.png" 
          Visibility="Collapsed"/> 
       </Grid> 

      </chartingPrimitivesTK:EdgePanel> 
     </Grid>        
    </Grid> 
</Border>

和這裏是鼠標事件（特別是MouseMove）：

void TimelineChart_Loaded(object sender, RoutedEventArgs e) 
{ 
    chartTimeline.UpdateLayout(); 

    List<FrameworkElement> chartChildren = GetLogicalChildrenBreadthFirst(chartTimeline).ToList(); 

    mChartArea = 
     chartChildren.Where(element => element.Name.Equals("ChartArea")).FirstOrDefault() as Panel; 

    if (mChartArea != null) 
    { 
     grabCursor = chartChildren.Where(element => element.Name.Equals("cursorGrab")).FirstOrDefault() as Image; 
     grabbingCursor = chartChildren.Where(element => element.Name.Equals("cursorGrabbing")).FirstOrDefault() as Image; 

     mGridHandCursors = 
      chartChildren.Where(element => element.Name.Equals("gridHandCursors")).FirstOrDefault() as Grid; 

     mChartArea.Cursor = Cursors.None; 
     mChartArea.MouseMove += new MouseEventHandler(mChartArea_MouseMove); 
     mChartArea.MouseLeftButtonDown += new MouseButtonEventHandler(mChartArea_MouseLeftButtonDown); 
     mChartArea.MouseLeftButtonUp += new MouseButtonEventHandler(mChartArea_MouseLeftButtonUp); 
     if (mGridHandCursors != null) 
     { 
      mChartArea.MouseEnter += (s, e2) => 
       mGridHandCursors.Visibility = Visibility.Visible; 
      mChartArea.MouseLeave += (s, e2) => 
       mGridHandCursors.Visibility = Visibility.Collapsed; 
     } 
    } 
} 

void mChartArea_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) 
{    
    if (grabCursor != null) 
     grabCursor.Visibility = Visibility.Visible; 
    if (grabbingCursor != null) 
     grabbingCursor.Visibility = Visibility.Collapsed; 
} 

void mChartArea_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) 
{ 
    if (grabCursor != null) 
     grabCursor.Visibility = Visibility.Collapsed; 
    if (grabbingCursor != null) 
     grabbingCursor.Visibility = Visibility.Visible; 
} 

void mChartArea_MouseMove(object sender, MouseEventArgs e) 
{ 
    if (mGridHandCursors != null) 
    { 
     Point pt = e.GetPosition(null); 
     mGridHandCursors.SetValue(Canvas.LeftProperty, pt.X); 
     mGridHandCursors.SetValue(Canvas.TopProperty, pt.Y); 
    } 
}

任何幫助過去這個路障將不勝感激！

感謝， WTS

來源

2010-04-14 Wonko the Sane

我有一件事是工作（用帆布周圍），但我會接受其他，不太代碼氣味的替代品。

<Canvas Canvas.ZIndex="5"> 
    <Grid x:Name="gridHandCursors" 
      Width="32" Height="32" 
      Visibility="Collapsed"> 
     <Image x:Name="cursorGrab" Width="32" 
       Source="Resources/grab.png" /> 
     <Image x:Name="cursorGrabbing" Width="32" 
       Source="Resources/grabbing.png" 
       Visibility="Collapsed"/> 
    </Grid> 
</Canvas>

來源

2010-04-14 17:46:11

的Silverlight 3.0自定義光標在圖表

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