public void Copy()
{
AreaGroup areaGroup = dvDisplay.Layout.AreaGroup;
if (areaGroup.Areas.Count <= 0)
{
return;
}
if (!byteBuffer.ReadAllowed)
{
return;
}
byte[] ba = byteBuffer.RangeToByteArray(areaGroup.Selection);
// if no selection, do nothing (keep old clipboard data)
if (ba == null)
{
return;
}
clipdata = ba;
// set clipboard
clipboard.SetWithData(clipboardTargets, new ClipboardGetFunc(OnClipboardGet),
new ClipboardClearFunc(OnClipboardClear));
dvDisplay.MakeOffsetVisible(areaGroup.CursorOffset, DataViewDisplay.ShowType.Closest);
}
///<summary>
/// Sets the selection and the cursor position according to the values of selStartPos, selEndPos
///</summary>
private void EvaluateSelection(DataViewDisplay.ShowType showType)
{
//System.Console.WriteLine("Evaluate (1) Start: {0},{1},{2} End: {3},{4},{5}", selStartPos.First, selStartPos.Second, selStartPos.Digit, selEndPos.First, selEndPos.Second, selEndPos.Digit);
long cursorOffset;
// no selection
if (selStartPos.First == selEndPos.First && selStartPos.Second == selEndPos.Second)
{
cursorOffset = selStartPos.Second;
// make sure cursor (or end of selection) is visible
dvDisplay.MakeOffsetVisible(cursorOffset, showType);
dataView.SetSelection(-1, -1);
dataView.MoveCursor(selStartPos.Second, selEndPos.Digit);
}
// selection with start pos <= end pos
else if (selStartPos.Second <= selEndPos.First)
{
// set end position between bytes
// this is done so that selections performed with
// the mouse can be continued with the keyboard
// (keyboard selections always set positions between bytes)
selEndPos.Second = selEndPos.First + 1;
// if selEndPos.Second is at or beyond the EOF
long off = ValidateOffset(selEndPos.Second);
if (selEndPos.First >= off)
{
off++;
}
cursorOffset = off;
dvDisplay.MakeOffsetVisible(cursorOffset, showType);
// set the selection only if the start position (which is the start of the selection)
// is within the file's limits
if (selStartPos.Second < dataView.Buffer.Size)
{
dataView.SetSelection(ValidateOffset(selStartPos.Second), ValidateOffset(selEndPos.First));
}
else
{
dataView.SetSelection(-1, -1);
}
dataView.MoveCursor(off, 0);
}
// selection with start pos > end pos
else
{
// set start position between bytes
// this is done so that selections performed with
// the mouse can be continued with the keyboard
// (keyboard selections always set positions between bytes)
// TODO: This is currently disabled because it breaks mouse
// selection
//
//selStartPos.Second = selStartPos.First + 1;
long off = selEndPos.Second;
cursorOffset = off;
dvDisplay.MakeOffsetVisible(cursorOffset, showType);
// set the selection only if the end position (which is the start of the selection)
// is within the file's limits
if (selEndPos.Second < dataView.Buffer.Size)
{
dataView.SetSelection(ValidateOffset(selEndPos.Second), ValidateOffset(selStartPos.First));
}
else
{
dataView.SetSelection(-1, -1);
}
dataView.MoveCursor(off, 0);
}
//System.Console.WriteLine("Evaluate (2) Start: {0},{1},{2} End: {3},{4},{5}", selStartPos.First, selStartPos.Second, selStartPos.Digit, selEndPos.First, selEndPos.Second, selEndPos.Digit);
}