/// <summary>
/// 解除事件，设置选择模式为普通模式相同的icons
/// </summary>
private void m_GeoprocessingTree_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e)
{
if ((e.Node != null))
{
e.Node.SelectedImageIndex = e.Node.ImageIndex;
if ((e.Node.Tag != null))
{
bool handled = false;
if (e.Node.ImageIndex == ICON_TOOL)//树节点处于未选定状态时所显示图像的图像列表索引值为2
{
IGisTool tool = e.Node.Tag as IGisTool;
if (tool != null)
{
FireToolSelected(tool, ref handled);
}
}
else
{
//假定它是个文件夹
IGisToolboxGroup group = e.Node.Tag as IGisToolboxGroup;
if (group != null)
{
FireGroupSelected(group, ref handled);
}
}
}
}
}
/// <summary>
/// 将事件传递给所有监听者
/// </summary>
private void FireGroupSelected(IGisToolboxGroup group, ref bool handled)
{
if (this.GroupSelected != null)
{
this.GroupSelected(group, ref handled);
}
}
/// <summary>
/// 显示组描述
/// </summary>
void GisToolbox_GroupSelected(IGisToolboxGroup group, ref bool handled)
{
this.m_textbox.Clear(); //清除所有文本
this.m_textbox.Text = group.Name + Environment.NewLine + Environment.NewLine + group.Description; //文本内容为组的工具名和组的工具描述
this.m_textbox.Select(0, group.Name.Length); //选择文本框中的文本框的范围为组名的长度
this.m_textbox.SelectionFont = new Font(this.Font, FontStyle.Bold); //文本字体
handled = true;
}
/// <summary>
/// 清除所有组
/// </summary>
public void Clear()
{
for (int i = m_nodes.Count - 1; i >= 0; i--)//循环删除树节点
{
IGisToolboxGroup group = m_nodes[i].Tag as IGisToolboxGroup;
if (group != null)
{
m_nodes.RemoveAt(i);
}
}
}
/// <summary>
/// 删除指定位置的组
/// </summary>
/// <param name="item">需要删除的工具</param>
/// <returns>成功删除返回true，失败返回false</returns>
public bool Remove(IGisToolboxGroup item)
{
foreach (TreeNode node in m_nodes)
{
if (node.Tag as IGisToolboxGroup == item)
{
m_nodes.Remove(node);
return(true);
}
}
return(false);
}
/// <summary>
/// 判断组列表中是否包含特定组
/// </summary>
/// <param name="item">特定组</param>
/// <returns>包含返回true，不包含返回false</returns>
public bool Contains(IGisToolboxGroup item)
{
if (item == null)
{
return(false);
}
for (int i = 0; i < m_nodes.Count; i++)
{
IGisToolboxGroup group = m_nodes[i].Tag as IGisToolboxGroup;
if (group == item)
{
return(true);
}
}
return(false);
}
/// <summary>
/// 添加新的工具到组中
/// </summary>
/// <param name="item">需要添加的新的工具</param>
public void Add(IGisToolboxGroup item)
{
if (this.Equals(item))//需要添加的工具与被添加的组相同，抛出异常
{
throw new InvalidOperationException();
}
GisToolboxGroup group = item as GisToolboxGroup;
if (group == null)//需要添加的工具是空的，抛出异常
{
throw new InvalidCastException();
}
int i = 0;
for (; i < m_nodes.Count; i++)
{
if (m_nodes[i].Tag as IGisToolboxGroup == null)//检查当前组中是否有空位
{
break;
}
}
TreeNode node = ((GisToolboxGroup)item).Node;//数据类型转换
if (i < m_nodes.Count)
{
//如果当前组中有空位，将工具添加到空位上
m_nodes.Insert(i, node);
}
else
{
//如果当前组没有空位，将工具添加到当前组的末尾
m_nodes.Add(node);
}
}
