public void EditorSelectionChanged(TableSelection tableSelection)
{
// list of currently selected cells (default to none)
ArrayList selectedCells = new ArrayList();
if (tableSelection != null && tableSelection.HasContiguousSelection)
{
selectedCells = tableSelection.SelectedCells;
}
// build hashtables of element behaviors for our selected and unselected cells
Hashtable selectedCellBehaviors = new Hashtable();
foreach (IHTMLElement cellElement in selectedCells)
{
TableCellEditingElementBehavior cellBehavior = _tableEditingContext.GetCellBehavior(cellElement);
if (cellBehavior != null)
{
selectedCellBehaviors[cellElement.sourceIndex] = cellBehavior;
}
}
Hashtable lastSelectedCellBehaviors = new Hashtable();
foreach (IHTMLElement cellElement in _lastSelectedCells)
{
TableCellEditingElementBehavior cellBehavior = _tableEditingContext.GetCellBehavior(cellElement);
if (cellBehavior != null)
{
lastSelectedCellBehaviors[cellElement.sourceIndex] = cellBehavior;
}
}
// unselect cells that should no longer be selected
foreach (DictionaryEntry entry in lastSelectedCellBehaviors)
{
if (!selectedCellBehaviors.ContainsKey(entry.Key))
{
(entry.Value as TableCellEditingElementBehavior).DrawSelectionBorder = false;
}
}
// select cells that are joining the selection
foreach (DictionaryEntry entry in selectedCellBehaviors)
{
if (!lastSelectedCellBehaviors.ContainsKey(entry.Key))
{
(entry.Value as TableCellEditingElementBehavior).DrawSelectionBorder = true;
}
}
// update the last selected cells
_lastSelectedCells = selectedCells;
}
private void HandleMouseMove(TableColumnMouseEventArgs ea)
{
// cell element we are over
IHTMLElement targetCell = GetTargetCell(ea.ClientPoint);
// if there is no element then we are done
if (targetCell == null)
{
// reset state
_sizingOperation.EndSizing();
return;
}
// get the cell and row
IHTMLTableCell cell = targetCell as IHTMLTableCell;
IHTMLTableRow row = TableHelper.GetContainingRowElement(cell);
// convert the client point to cell-local coordinates & calcualte our comparison x values
TableCellEditingElementBehavior cellBehavior = _tableEditingContext.GetCellBehavior(targetCell);
if (cellBehavior == null)
{
_sizingOperation.ClearPending();
return;
}
Point cellLocalMousePt = cellBehavior.TransformGlobalToLocal(ea.ClientPoint);
int cellSpacing = TableHelper.GetAttributeAsInteger(_table.cellSpacing);
int cellSpacingOffset = cellSpacing / 2;
int compareX = cellLocalMousePt.X;
int cellStartX = 0 - cellSpacingOffset;
int cellEndX = targetCell.offsetWidth + cellSpacingOffset;
// if the mouse is near the edge of the cell then update the pending sizing action
// (unless the mouse is near the edge of the first cell where no sizing is supported)
if (MouseNearCellEdge(compareX, cellStartX, cellSpacing) || MouseNearCellEdge(compareX, cellEndX, cellSpacing))
{
if (MouseNearCellEdge(compareX, cellStartX, cellSpacing))
{
if (cell.cellIndex > 0)
{
int leftIndex = cell.cellIndex - 1;
int rightIndex = cell.cellIndex;
_sizingOperation.TrackPending(ea.ClientPoint.X, leftIndex, rightIndex);
ea.Handled = true;
}
else
{
_sizingOperation.ClearPending();
}
}
else if (MouseNearCellEdge(compareX, cellEndX, cellSpacing))
{
int leftIndex = cell.cellIndex;
int rightIndex = cell.cellIndex < (row.cells.length - 1) ? cell.cellIndex + 1 : -1;
_sizingOperation.TrackPending(ea.ClientPoint.X, leftIndex, rightIndex);
ea.Handled = true;
}
}
else // mouse is not near the edge of the cell, reset pending action
{
_sizingOperation.ClearPending();
}
}
public void RemoveCellBehavior(TableCellEditingElementBehavior cellBehavior)
{
_cellElementBehaviors.Remove(cellBehavior);
}
public void AddCellBehavior(TableCellEditingElementBehavior cellBehavior)
{
_cellElementBehaviors.Add(cellBehavior);
}
public void RemoveCellBehavior(TableCellEditingElementBehavior cellBehavior)
{
_cellElementBehaviors.Remove(cellBehavior);
}
public void AddCellBehavior(TableCellEditingElementBehavior cellBehavior)
{
_cellElementBehaviors.Add(cellBehavior);
}