protected virtual void grid_MouseMove(GridVirtual sender, System.Windows.Forms.MouseEventArgs e)
{
Position l_PointPosition = sender.PositionAtPoint(new Point(e.X, e.Y));
Cells.ICellVirtual l_CellPosition = sender.GetCell(l_PointPosition);
#region Mouse Multiselection
if (e.Button == MouseButtons.Left && sender.Selection.EnableMultiSelection)
{
//Only if there is a FocusCell
CellContext focusCellContext = new CellContext(sender, sender.Selection.ActivePosition);
if (focusCellContext.Cell != null && focusCellContext.IsEditing() == false)
{
Position l_SelCornerPos = l_PointPosition;
Cells.ICellVirtual l_SelCorner = l_CellPosition;
//If the current Focus Cell is a scrollable cell then search the current cell (under the mouse)only in scrollable cells
// see PositionAtPoint with false parameter
if (sender.GetPositionType(sender.Selection.ActivePosition) == CellPositionType.Scrollable)
{
l_SelCornerPos = sender.PositionAtPoint(new Point(e.X, e.Y));
l_SelCorner = sender.GetCell(l_PointPosition);
}
if (l_SelCornerPos.IsEmpty() == false && l_SelCorner != null)
{
//Only if the user start the selection with a cell (m_MouseDownCell!=null)
if (sender.MouseDownPosition.IsEmpty() == false && sender.Selection.Contains(sender.MouseDownPosition))
{
sender.ChangeMouseSelectionCorner(l_SelCornerPos);
sender.ShowCell(l_SelCornerPos);
}
}
}
}
#endregion
}
public bool GetScrollPositionToShowCell(Position position, List <int> visibleColumns, List <int> visibleRows, out Point newScrollPosition)
{
CellPositionType posType = m_Grid.GetPositionType(position);
Rectangle displayRectangle = m_Grid.DisplayRectangle;
bool isFixedLeft = posType == CellPositionType.FixedLeft || posType == CellPositionType.FixedTopLeft;
int x;
if (visibleColumns.Contains(position.Column)) //Is x visible
{
x = m_Grid.CustomScrollPosition.X;
}
else
{
if (isFixedLeft)
{
x = 0;
}
else
{
x = position.Column - m_Grid.ActualFixedColumns;
}
//Check if the scrollable positioin if not outside the valid area
int maxX = m_Grid.GetScrollColumns(displayRectangle.Width);
if (x > maxX)
{
x = maxX;
}
}
bool isFixedTop = posType == CellPositionType.FixedTop || posType == CellPositionType.FixedTopLeft;
int y;
if (visibleRows.Contains(position.Row)) //Is y visible
{
y = m_Grid.CustomScrollPosition.Y;
//[email protected]:CHDOC00123837: it works as expected without changing y value. the calculation in this method doesn't seem right
//y = m_Grid.ExtendTopRowByHiddenRows(y);
}
else
{
//MICK(15): add direction dependent procedure of finding y (and x should be too).
//It means that when you go from bottom to top, the selected item will be at top,
// (this already happens, so this part is not changed)
// when you go from top to bottom, the selected item will be at bottom,
// y (and x) value is adjusted accordingly
if (m_Grid.CustomScrollPosition.Y + m_Grid.ActualFixedRows > position.Row)
{
//MICK(16): direction bottom to top
if (isFixedTop)
{
y = 0;
}
else
{
y = position.Row - m_Grid.FixedRows;
}
//Check if the scrollable positioin if not outside the valid area
int maxY = m_Grid.GetScrollRows(displayRectangle.Height);
if (y > maxY)
{
y = maxY;
}
//[email protected]:CHDOC00123837: it works as expected without changing y value. the calculation in this method doesn't seem right
//MICK(21)
//y = m_Grid.ExtendTopRowByHiddenRows(y);
}
else
{
//MICK(17): direction from top to bottom
y = m_Grid.GetTopVisibleRowFromBottomRow(position.Row) - m_Grid.ActualFixedRows;
//[email protected]: CHDOC00123837: it works as expected without changing y value. the calculation in this method doesn't seem right
//y = m_Grid.ExtendTopRowByHiddenRows(y);
}
}
newScrollPosition = new Point(x, y);
return(true);
}
public bool GetScrollPositionToShowCell(Position position, List <int> columns, List <int> rows, out Point newScrollPosition)
{
newScrollPosition = m_Grid.CustomScrollPosition;
if (!m_Grid.IsPositionValid(position))
{
return(false);
}
CellPositionType posType = m_Grid.GetPositionType(position);
Rectangle displayRectangle = m_Grid.DisplayRectangle;
bool isFixedLeft = posType == CellPositionType.FixedLeft || posType == CellPositionType.FixedTopLeft;
int x = m_Grid.CustomScrollPosition.X;
if (!columns.Contains(position.Column))
{
if (isFixedLeft)
{
x = 0;
}
else if (columns.Count > m_Grid.ActualFixedColumns)
{
if (position.Column < columns[m_Grid.ActualFixedColumns])
{
x = m_Grid.Columns.GetAbsoluteLeft(position.Column) - m_Grid.GetFixedAreaWidth();
}
else
{
x = m_Grid.Columns.GetAbsoluteRight(position.Column) - displayRectangle.Width;
}
}
else
{
x = m_Grid.Columns.GetAbsoluteLeft(position.Column) - m_Grid.GetFixedAreaWidth();
}
}
bool isFixedTop = posType == CellPositionType.FixedTop || posType == CellPositionType.FixedTopLeft;
int y = m_Grid.CustomScrollPosition.Y;
if (!rows.Contains(position.Row))
{
if (isFixedTop)
{
y = 0;
}
else if (rows.Count > m_Grid.ActualFixedRows)
{
if (position.Row < rows[m_Grid.ActualFixedRows])
{
y = m_Grid.Rows.GetAbsoluteTop(position.Row) - m_Grid.GetFixedAreaHeight();
}
else
{
y = m_Grid.Rows.GetAbsoluteBottom(position.Row) - displayRectangle.Height;
}
}
else
{
y = m_Grid.Rows.GetAbsoluteTop(position.Row) - m_Grid.GetFixedAreaHeight();
}
}
newScrollPosition = new Point(x, y);
return(true);
}