public void BindIt(BPLabel link)
{
this.TB_Text.Text = link.Content.ToString().Replace("\n", "@");
Glo.BindComboBoxFontSize(this.DDL_FrontSize, link.FontSize);
this.TB_Text.TextWrapping = TextWrapping.Wrap;
this.Show();
}
protected override void OnKeyDown(KeyEventArgs e)
{
e.Handled = true;
// 获取 textBox 对象的相对于 Canvas 的 x坐标 和 y坐标
double x = (double)this.GetValue(Canvas.LeftProperty);
double y = (double)this.GetValue(Canvas.TopProperty);
// KeyEventArgs.Key - 与事件相关的键盘的按键 [System.Windows.Input.Key枚举]
switch (e.Key)
{
// 按 Up 键后 textBox 对象向 上 移动 1 个像素
// Up 键所对应的 e.PlatformKeyCode == 38
// 当获得的 e.Key == Key.Unknown 时，可以使用 e.PlatformKeyCode 来确定用户所按的键
case Key.Up:
this.SetValue(Canvas.TopProperty, y - 1);
break;
case Key.Down:
this.SetValue(Canvas.TopProperty, y + 1);
break;
case Key.Left:
this.SetValue(Canvas.LeftProperty, x - 1);
break;
case Key.Right:
this.SetValue(Canvas.LeftProperty, x + 1);
break;
case Key.Delete:
if (this.Name.Contains("_blank_") == false)
{
if (MessageBox.Show("您确定要删除吗？",
"删除提示", MessageBoxButton.OKCancel) == MessageBoxResult.Cancel)
{
return;
}
}
Canvas c = this.Parent as Canvas;
c.Children.Remove(this);
break;
case Key.C:
break;
case Key.V:
if (Keyboard.Modifiers == ModifierKeys.Control)
{
BPLabel tb = new BPLabel();
tb.Cursor = Cursors.Hand;
tb.SetValue(Canvas.LeftProperty, (double)this.GetValue(Canvas.LeftProperty) + 15);
tb.SetValue(Canvas.TopProperty, (double)this.GetValue(Canvas.TopProperty) + 15);
Canvas s1c = this.Parent as Canvas;
try
{
s1c.Children.Add(tb);
}
catch
{
s1c.Children.Remove(tb);
}
}
break;
default:
break;
}
base.OnKeyDown(e);
}