protected override void OnPreviewMouseDown(MouseButtonEventArgs e)
{
base.OnPreviewMouseDown(e);
Point pos = e.GetPosition(treeProjects);
HitTestResult result = VisualTreeHelper.HitTest(treeProjects, pos);
TreeViewItem item = null;
if (result != null)
{
item = ViewHelper.FindVisualParent <TreeViewItem>(result.VisualHit);
}
if (e.RightButton == MouseButtonState.Pressed)
{
if (item != null)
{
item.IsSelected = true;
}
}
if (e.ClickCount == 2)
{
if (item != null && item.DataContext is ViFileInfo)
{
ViFileInfo node = item.DataContext as ViFileInfo;
node.DoubleClick(e);
}
return;
}
dragBoxFromMouseDown = new Rect(pos.X - dragSize.Width / 2, pos.Y - dragSize.Height / 2, dragSize.Width, dragSize.Height);
}
private void DoPaste()
{
List <ViFileInfo> selectItems = this.SelectedItems;
ViFileInfo target = selectItems.Count == 1 ? selectItems[0] : selectItems[0].GetParent() as ViFileInfo;
if (target != null)
{
target.DoPaste();
}
}
private void TextBox_LostFocus(object sender, RoutedEventArgs e)
{
TextBox tb = sender as TextBox;
ViFileInfo target = tb.Tag as ViFileInfo;
if (target == null)
{
return;
}
target.Remane(target.Name, tb.Text);
target.IsEditMode = false;
}
private void TextBox_KeyUp(object sender, KeyEventArgs e)
{
TextBox tb = sender as TextBox;
ViFileInfo tag = tb.Tag as ViFileInfo;
if (tag == null)
{
return;
}
if (e.Key == Key.Escape)
{
tag.IsEditMode = false;
}
else if (e.Key == Key.Enter)
{
tag.Remane(tag.Name, tb.Text);
tag.IsEditMode = false;
}
}
protected override void OnDrop(DragEventArgs e)
{
base.OnDrop(e);
e.Handled = true;
//获取当前位置的TreeViewItem
Point pos = e.GetPosition(this.treeProjects);
HitTestResult result = VisualTreeHelper.HitTest(treeProjects, pos);
if (result == null)
{
return;
}
TreeViewItem curItem = ViewHelper.FindVisualParent <TreeViewItem>(result.VisualHit);
if (curItem == null)
{
return;
}
//获取目标对象。
TreeViewItem sourceItem = e.Data.GetData(typeof(TreeViewItem)) as TreeViewItem;
if (sourceItem == null)
{
return;
}
//判断及进行执行相关的拖放操作。
ViFileInfo curFile = curItem.DataContext as ViFileInfo;
ViFileInfo srcFile = sourceItem.DataContext as ViFileInfo;
ViFolderInfo currFolder = curFile is ViFolderInfo ? curFile as ViFolderInfo : curFile.GetParent() as ViFolderInfo;
if (currFolder == null)
{
return;
}
currFolder.ModeFileInfo(srcFile);
}
