/// <summary>
/// 加载设备成功
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public void Inst_Loaded(object sender, RoutedEventArgs e) {
aLayer = AdornerLayer.GetAdornerLayer(PCS931_Viewbox);
scaleAdorner = new ScaleAdorner(PCS931_Viewbox);
aLayer.Add(scaleAdorner);
}
private void Zoom_PreviewMouseWheel(object sender, MouseWheelEventArgs e) {
if (!(Keyboard.Modifiers == ModifierKeys.Control))
return;
Point pos = e.GetPosition(this);
double scaleFactor = 0.0;
if (e.Delta > 0) {
scaleFactor = e.Delta / 100.0;
} else if (e.Delta < 0) {
scaleFactor = 100.0 / -e.Delta;
}
double oldx = PCS931_Viewbox.ActualWidth - pos.X;
double oldy = PCS931_Viewbox.ActualHeight - pos.Y;
InstAttatch.SetScaleWidth(this, (PCS931_Viewbox.ActualWidth * scaleFactor).ToString());
InstRefresh.Refresh(this);
aLayer.Remove(scaleAdorner);
scaleAdorner = new ScaleAdorner(PCS931_Viewbox);
aLayer.Add(scaleAdorner);
scaleAdorner.AdornedElement = PCS931_Viewbox;
double dx = oldx * (1 - scaleFactor);
double dy = oldy * (1 - scaleFactor);
//InstAttatch.SetRelativePos(this,new Point(dx,dy));
}
/// <summary>
/// 给设备添加缩放边界
/// </summary>
/// <param name="aLayer"></param>
/// <param name="vb"></param>
public static void AddScaleAdorner(ref AdornerLayer aLayer, ScaleAdorner scaleAdorner) {
}
