private bool Validate(IProjectEditor editor, object sender, DragEventArgs e, bool bExecute)
{
var point = DropHelper.GetPosition(sender, e);
if (e.Data.Contains(DataFormats.Text))
{
var text = e.Data.GetText();
if (bExecute)
{
editor?.OnTryPaste(text);
}
return(true);
}
foreach (var format in e.Data.GetDataFormats())
{
var data = e.Data.Get(format);
switch (data)
{
case IBaseShape shape:
return(editor?.OnDropShape(shape, point.X, point.Y, bExecute) == true);
case IRecord record:
return(editor?.OnDropRecord(record, point.X, point.Y, bExecute) == true);
case IShapeStyle style:
return(editor?.OnDropStyle(style, point.X, point.Y, bExecute) == true);
case IPageContainer page:
return(editor?.OnDropTemplate(page, point.X, point.Y, bExecute) == true);
default:
break;
}
}
if (e.Data.Contains(DataFormats.FileNames))
{
var files = e.Data.GetFileNames().ToArray();
if (bExecute)
{
editor?.OnDropFiles(files, point.X, point.Y);
}
return(true);
}
return(false);
}
private void ZoomBorder_Drop(object sender, DragEventArgs e)
{
// Files.
if (e.Data.GetDataPresent(DataFormats.FileDrop))
{
try
{
var files = (string[])e.Data.GetData(DataFormats.FileDrop);
if (_projectEditor.OnDropFiles(files))
{
e.Handled = true;
}
}
catch (Exception ex)
{
_projectEditor?.Log?.LogException(ex);
}
}
// Shapes.
if (e.Data.GetDataPresent(typeof(IBaseShape)))
{
try
{
if (e.Data.GetData(typeof(IBaseShape)) is IBaseShape shape)
{
var p = e.GetPosition(drawableControl);
_projectEditor.OnDropShape(shape, p.X, p.Y);
e.Handled = true;
}
}
catch (Exception ex)
{
_projectEditor?.Log?.LogException(ex);
}
}
// Groups.
if (e.Data.GetDataPresent(typeof(IGroupShape)))
{
try
{
if (e.Data.GetData(typeof(IGroupShape)) is IGroupShape group)
{
var p = e.GetPosition(drawableControl);
_projectEditor.OnDropShapeAsClone(group, p.X, p.Y);
e.Handled = true;
}
}
catch (Exception ex)
{
_projectEditor?.Log?.LogException(ex);
}
}
// Records.
if (e.Data.GetDataPresent(typeof(IRecord)))
{
try
{
if (e.Data.GetData(typeof(IRecord)) is IRecord record)
{
var p = e.GetPosition(drawableControl);
_projectEditor.OnDropRecord(record, p.X, p.Y);
e.Handled = true;
}
}
catch (Exception ex)
{
_projectEditor?.Log?.LogException(ex);
}
}
// Styles.
if (e.Data.GetDataPresent(typeof(IShapeStyle)))
{
try
{
if (e.Data.GetData(typeof(IShapeStyle)) is IShapeStyle style)
{
var p = e.GetPosition(drawableControl);
_projectEditor.OnDropStyle(style, p.X, p.Y);
e.Handled = true;
}
}
catch (Exception ex)
{
_projectEditor?.Log?.LogException(ex);
}
}
// Templates.
if (e.Data.GetDataPresent(typeof(IPageContainer)))
{
try
{
if (e.Data.GetData(typeof(IPageContainer)) is IPageContainer template)
{
_projectEditor.OnApplyTemplate(template);
e.Handled = true;
}
}
catch (Exception ex)
{
_projectEditor?.Log?.LogException(ex);
}
}
}