public override void Run(LegendCommand command)
{
Shapefile sf = null;
var layer = _legend.Layers.ItemByHandle(LayerHandle);
if (layer != null)
{
sf = layer.GetObject() as Shapefile;
}
switch (command)
{
case LegendCommand.CalculateArea:
break;
case LegendCommand.RemoveLayer:
LayerHelper.RemoveLayer();
break;
case LegendCommand.LoadLayerStyle:
LayerHelper.LoadLayerStyle();
break;
case LegendCommand.SaveLayerStyle:
LayerHelper.SaveCurrentStyle();
break;
//case LegendCommand.ImportOgrLayer:
// LayerHelper.ImportOgrLayer();
// break;
case LegendCommand.ZoomToLayer:
_legend.Map.ZoomToLayer(LayerHandle);
break;
case LegendCommand.Labels:
{
using (Form form = new LabelStyleForm(_legend, sf, LayerHandle))
{
form.ShowDialog(MainForm.Instance);
_legend.Refresh();
}
}
break;
case LegendCommand.Properties:
LayerHelper.ShowLayerProperties(LayerHandle);
break;
}
}
/// <summary>
/// 右键菜单移除项处理
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void removeItem_Click(object sender, EventArgs e)
{
int layerHandle = App.Legend.SelectedLayer;
Node node = findNode(x => x.LegendHandle == layerHandle && x.NodeType == NodeType.layer);
int parentGroupHandle = node.ParentGroupHandle;
LayerHelper.RemoveLayer();
LegendNodes.Remove(node);
//如果该组没有图层了，就移除该组
if (Legend.Groups[parentGroupHandle].LayerCount == 0)
{
Node groupNode = findNode(x => x.LegendHandle == parentGroupHandle && x.NodeType == NodeType.group);
LegendNodes.Remove(groupNode);
Legend.Groups.Remove(parentGroupHandle);
}
RefreshUI();
}
