/// <summary>
/// Returns the row number of the clicked cell.
/// </summary>
/// <param name="dg">The parent WorksheetController.</param>
/// <param name="mouseCoord">The mouse coordinates of the click.</param>
/// <param name="cellRect">Returns the bounding rectangle of the clicked cell.</param>
/// <param name="bPropertyCol">True if clicked on either the property column header or a property column, else false.</param>
/// <returns>The row number of the clicked cell, or -1 if clicked on the column header.</returns>
/// <remarks>If clicked onto a property cell, the function returns the property column number.</remarks>
public static int GetRowNumber(WinFormsWorksheetController dg, Point mouseCoord, ref Rectangle cellRect, out bool bPropertyCol)
{
int firstVisibleColumn = dg.FirstVisibleColumn;
int actualColumnRight = dg.WorksheetLayout.RowHeaderStyle.Width;
int columnCount = dg.DataTable.DataColumns.ColumnCount;
if (mouseCoord.Y < dg.WorksheetLayout.ColumnHeaderStyle.Height)
{
cellRect.Y = 0; cellRect.Height = dg.WorksheetLayout.ColumnHeaderStyle.Height;
bPropertyCol = false;
return(-1);
}
if (mouseCoord.Y < dg.VerticalPositionOfFirstVisibleDataRow && dg.VisiblePropertyColumns > 0)
{
// calculate the raw row number
int rawrow = (int)Math.Floor((mouseCoord.Y - dg.WorksheetLayout.ColumnHeaderStyle.Height) / (double)dg.WorksheetLayout.PropertyColumnHeaderStyle.Height);
cellRect.Y = dg.WorksheetLayout.ColumnHeaderStyle.Height + rawrow * dg.WorksheetLayout.PropertyColumnHeaderStyle.Height;
cellRect.Height = dg.WorksheetLayout.PropertyColumnHeaderStyle.Height;
bPropertyCol = true;
return(dg.FirstVisiblePropertyColumn + rawrow);
}
else
{
int rawrow = (int)Math.Floor((mouseCoord.Y - dg.VerticalPositionOfFirstVisibleDataRow) / (double)dg.WorksheetLayout.RowHeaderStyle.Height);
cellRect.Y = dg.VerticalPositionOfFirstVisibleDataRow + rawrow * dg.WorksheetLayout.RowHeaderStyle.Height;
cellRect.Height = dg.WorksheetLayout.RowHeaderStyle.Height;
bPropertyCol = false;
return(dg.FirstVisibleTableRow + rawrow);
}
}
/// <summary>
/// Retrieves the column number clicked onto
/// </summary>
/// <param name="dg">The parent data grid</param>
/// <param name="mouseCoord">The coordinates of the mouse click.</param>
/// <param name="cellRect">The function sets the x-properties (X and Width) of the cell rectangle.</param>
/// <returns>Either -1 when clicked on the row header area, column number when clicked in the column range, or int.MinValue when clicked outside of all.</returns>
public static int GetColumnNumber(WinFormsWorksheetController dg, Point mouseCoord, ref Rectangle cellRect)
{
int firstVisibleColumn = dg.FirstVisibleColumn;
int actualColumnRight = dg.WorksheetLayout.RowHeaderStyle.Width;
int columnCount = dg.DataTable.DataColumns.ColumnCount;
if (mouseCoord.X < actualColumnRight)
{
cellRect.X = 0; cellRect.Width = actualColumnRight;
return(-1);
}
for (int i = firstVisibleColumn; i < columnCount; i++)
{
cellRect.X = actualColumnRight;
Altaxo.Worksheet.ColumnStyle cs = dg.GetDataColumnStyle(i);
actualColumnRight += cs.Width;
if (actualColumnRight > mouseCoord.X)
{
cellRect.Width = cs.Width;
return(i);
}
} // end for
return(int.MinValue);
}
/// <summary>
/// Creates the ClickedCellInfo from the data grid and the mouse coordinates of the click.
/// </summary>
/// <param name="dg">The data grid.</param>
/// <param name="mouseCoord">The mouse coordinates of the click.</param>
public void MouseClick(WinFormsWorksheetController dg, Point mouseCoord)
{
bool bIsPropertyColumn = false;
_clickedCellRectangle = new Rectangle(0, 0, 0, 0);
_clickedColumn = GetColumnNumber(dg, mouseCoord, ref _clickedCellRectangle);
_clickedRow = GetRowNumber(dg, mouseCoord, ref _clickedCellRectangle, out bIsPropertyColumn);
if (bIsPropertyColumn)
{
if (_clickedColumn == -1)
{
_clickedAreaType = AreaType.PropertyColumnHeader;
}
else if (_clickedColumn >= 0)
{
_clickedAreaType = AreaType.PropertyCell;
}
else
{
_clickedAreaType = AreaType.OutsideAll;
}
int h = _clickedColumn; _clickedColumn = _clickedRow; _clickedRow = h; // Swap columns and rows since it is a property column
}
else // it is not a property related cell
{
if (_clickedRow == -1 && _clickedColumn == -1)
{
_clickedAreaType = AreaType.TableHeader;
}
else if (_clickedRow == -1 && _clickedColumn >= 0)
{
_clickedAreaType = AreaType.DataColumnHeader;
}
else if (_clickedRow >= 0 && _clickedColumn == -1)
{
_clickedAreaType = AreaType.DataRowHeader;
}
else if (_clickedRow >= 0 && _clickedColumn >= 0)
{
_clickedAreaType = AreaType.DataCell;
}
else
{
_clickedAreaType = AreaType.OutsideAll;
}
}
}
/// <summary>
/// Creates the ClickedCellInfo from the data grid and the mouse coordinates of the click.
/// </summary>
/// <param name="dg">The data grid.</param>
/// <param name="mouseCoord">The mouse coordinates of the click.</param>
public void MouseClick(WinFormsWorksheetController dg, Point mouseCoord)
{
bool bIsPropertyColumn=false;
_clickedCellRectangle = new Rectangle(0,0,0,0);
_clickedColumn = GetColumnNumber(dg,mouseCoord, ref _clickedCellRectangle);
_clickedRow = GetRowNumber(dg,mouseCoord,ref _clickedCellRectangle, out bIsPropertyColumn);
if(bIsPropertyColumn)
{
if(_clickedColumn==-1)
_clickedAreaType = AreaType.PropertyColumnHeader;
else if(_clickedColumn>=0)
_clickedAreaType = AreaType.PropertyCell;
else
_clickedAreaType = AreaType.OutsideAll;
int h=_clickedColumn; _clickedColumn = _clickedRow; _clickedRow = h; // Swap columns and rows since it is a property column
}
else // it is not a property related cell
{
if(_clickedRow==-1 && _clickedColumn==-1)
_clickedAreaType = AreaType.TableHeader;
else if(_clickedRow==-1 && _clickedColumn>=0)
_clickedAreaType = AreaType.DataColumnHeader;
else if(_clickedRow>=0 && _clickedColumn==-1)
_clickedAreaType = AreaType.DataRowHeader;
else if(_clickedRow>=0 && _clickedColumn>=0)
_clickedAreaType = AreaType.DataCell;
else
_clickedAreaType = AreaType.OutsideAll;
}
}
/// <summary>
/// Returns the row number of the clicked cell.
/// </summary>
/// <param name="dg">The parent WorksheetController.</param>
/// <param name="mouseCoord">The mouse coordinates of the click.</param>
/// <param name="cellRect">Returns the bounding rectangle of the clicked cell.</param>
/// <param name="bPropertyCol">True if clicked on either the property column header or a property column, else false.</param>
/// <returns>The row number of the clicked cell, or -1 if clicked on the column header.</returns>
/// <remarks>If clicked onto a property cell, the function returns the property column number.</remarks>
public static int GetRowNumber(WinFormsWorksheetController dg, Point mouseCoord, ref Rectangle cellRect, out bool bPropertyCol)
{
int firstVisibleColumn = dg.FirstVisibleColumn;
int actualColumnRight = dg.WorksheetLayout.RowHeaderStyle.Width;
int columnCount = dg.DataTable.DataColumns.ColumnCount;
if(mouseCoord.Y<dg.WorksheetLayout.ColumnHeaderStyle.Height)
{
cellRect.Y=0; cellRect.Height=dg.WorksheetLayout.ColumnHeaderStyle.Height;
bPropertyCol=false;
return -1;
}
if(mouseCoord.Y<dg.VerticalPositionOfFirstVisibleDataRow && dg.VisiblePropertyColumns>0)
{
// calculate the raw row number
int rawrow = (int)Math.Floor((mouseCoord.Y-dg.WorksheetLayout.ColumnHeaderStyle.Height)/(double)dg.WorksheetLayout.PropertyColumnHeaderStyle.Height);
cellRect.Y= dg.WorksheetLayout.ColumnHeaderStyle.Height + rawrow * dg.WorksheetLayout.PropertyColumnHeaderStyle.Height;
cellRect.Height = dg.WorksheetLayout.PropertyColumnHeaderStyle.Height;
bPropertyCol=true;
return dg.FirstVisiblePropertyColumn+rawrow;
}
else
{
int rawrow = (int)Math.Floor((mouseCoord.Y-dg.VerticalPositionOfFirstVisibleDataRow)/(double)dg.WorksheetLayout.RowHeaderStyle.Height);
cellRect.Y= dg.VerticalPositionOfFirstVisibleDataRow + rawrow * dg.WorksheetLayout.RowHeaderStyle.Height;
cellRect.Height = dg.WorksheetLayout.RowHeaderStyle.Height;
bPropertyCol=false;
return dg.FirstVisibleTableRow + rawrow;
}
}
/// <summary>
/// Retrieves the column number clicked onto
/// </summary>
/// <param name="dg">The parent data grid</param>
/// <param name="mouseCoord">The coordinates of the mouse click.</param>
/// <param name="cellRect">The function sets the x-properties (X and Width) of the cell rectangle.</param>
/// <returns>Either -1 when clicked on the row header area, column number when clicked in the column range, or int.MinValue when clicked outside of all.</returns>
public static int GetColumnNumber(WinFormsWorksheetController dg, Point mouseCoord, ref Rectangle cellRect)
{
int firstVisibleColumn = dg.FirstVisibleColumn;
int actualColumnRight = dg.WorksheetLayout.RowHeaderStyle.Width;
int columnCount = dg.DataTable.DataColumns.ColumnCount;
if(mouseCoord.X<actualColumnRight)
{
cellRect.X=0; cellRect.Width=actualColumnRight;
return -1;
}
for(int i=firstVisibleColumn;i<columnCount;i++)
{
cellRect.X=actualColumnRight;
Altaxo.Worksheet.ColumnStyle cs = dg.GetDataColumnStyle(i);
actualColumnRight += cs.Width;
if(actualColumnRight>mouseCoord.X)
{
cellRect.Width = cs.Width;
return i;
}
} // end for
return int.MinValue;
}
