protected override void OnDrop(DragEventArgs e)
{
base.OnDrop(e);
// If the DataObject contains string data, extract it.
if (e.Data.GetDataPresent(DataFormats.StringFormat))
{
string dataString = (string)e.Data.GetData(DataFormats.StringFormat);
// If the string can be converted into a Brush,
// convert it and apply it to the ellipse.
BrushConverter converter = new BrushConverter();
if (converter.IsValid(dataString))
{
Brush newFill = (Brush)converter.ConvertFromString(dataString);
Background = newFill;
// Set Effects to notify the drag source what effect
// the drag-and-drop operation had.
// (Copy if CTRL is pressed; otherwise, move.)
if (e.KeyStates.HasFlag(DragDropKeyStates.ControlKey))
{
e.Effects = DragDropEffects.Copy;
}
else
{
e.Effects = DragDropEffects.Move;
}
}
}
// e.Handled = true;
}
public void SetSizes(double x1, double y1, double x2, double y2, double Thickness, double x3, double y3, string text, string fontWeight, string Color, string Tag)
{
Line Sizeline = new Line();
SetLine(Sizeline, x1, y1, x2, y2, Thickness, Color, Tag);
storyboard = new Storyboard();
TextBlock textBlock = new TextBlock();
textBlock.Text = text;
textBlock.Foreground = (Brush)Converter.ConvertFromString(Color);
Canvas.SetLeft(textBlock, x3);
Canvas.SetTop(textBlock, y3);
textBlock.FontWeight = (FontWeight)WConverter.ConvertFromString(fontWeight);
Canvas.Children.Add(textBlock);
textBlock.Tag = Tag;
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
PropertyInfo pi = value as PropertyInfo;
SolidColorBrush colorBrush = Brushes.Black;
if (pi != null)
{
BrushConverter conv = new BrushConverter();
colorBrush = conv.ConvertFromString(pi.Name) as SolidColorBrush;
}
return(colorBrush);
}
protected override void OnDragEnter(DragEventArgs e)
{
base.OnDragEnter(e);
// Save the current Fill brush so that you can revert back to this value in DragLeave.
_previousFill = Background;
// If the DataObject contains string data, extract it.
if (e.Data.GetDataPresent(DataFormats.StringFormat))
{
string dataString = (string)e.Data.GetData(DataFormats.StringFormat);
// If the string can be converted into a Brush, convert it.
BrushConverter converter = new BrushConverter();
if (converter.IsValid(dataString))
{
Brush newFill = (Brush)converter.ConvertFromString(dataString.ToString());
Background = newFill;
}
}
}
