public override bool OnMouseMove(Point location, MouseButtons buttons)
{
bool isProcessed = false;
switch (sheet.operationStatus)
{
case OperationStatus.AdjustColumnWidth:
if (sheet.currentColWidthChanging >= 0 &&
buttons == MouseButtons.Left)
{
ColumnHeader colHeader = sheet.cols[sheet.currentColWidthChanging];
sheet.headerAdjustNewValue = location.X - colHeader.Left;
if (sheet.headerAdjustNewValue < 0)
{
sheet.headerAdjustNewValue = 0;
}
this.sheet.controlAdapter.ChangeCursor(CursorStyle.ChangeColumnWidth);
this.sheet.RequestInvalidate();
isProcessed = true;
}
break;
case OperationStatus.Default:
{
if (sheet.currentColWidthChanging == -1 && sheet.currentRowHeightChanging == -1)
{
int col = -1;
// find the column index
bool inline = sheet.FindColumnByPosition(location.X, out col) &&
sheet.HasSettings(WorksheetSettings.Edit_AllowAdjustColumnWidth);
if (col >= 0)
{
CursorStyle curStyle = inline ? CursorStyle.ChangeColumnWidth :
(sheet.selectionMode == WorksheetSelectionMode.None ? CursorStyle.Selection : CursorStyle.FullColumnSelect);
var header = sheet.cols[col];
// check if header body exists
if (header.Body != null)
{
// let cell's body decide the mouse behavior
var arg = new WorksheetMouseEventArgs(sheet, new Point(
((location.X - header.Left) * this.scaleFactor),
(location.Y / this.scaleFactor)), location, buttons, 1)
{
CursorStyle = curStyle
};
isProcessed = header.Body.OnMouseMove(
new Size(header.InnerWidth * this.scaleFactor, sheet.colHeaderHeight), arg);
curStyle = arg.CursorStyle;
}
sheet.controlAdapter.ChangeCursor(curStyle);
}
}
}
break;
case OperationStatus.FullColumnSelect:
case OperationStatus.FullSingleColumnSelect:
if (buttons == MouseButtons.Left)
{
sheet.controlAdapter.ChangeCursor(CursorStyle.FullColumnSelect);
sheet.SelectRangeEndByMouse(this.PointToController(location));
isProcessed = true;
}
break;
}
return(isProcessed);
}
/// <summary>
/// Method raised when mouse moving inside this body.
/// </summary>
/// <param name="headerSize">Header size</param>
/// <param name="e">Event argument</param>
/// <returns>true if this event is handled</returns>
public virtual bool OnMouseMove(Size headerSize, WorksheetMouseEventArgs e)
{
return(false);
}
public override bool OnMouseDown(Point location, MouseButtons buttons)
{
bool isProcessed = false;
switch (sheet.operationStatus)
{
case OperationStatus.Default:
int col = -1;
bool inSeparator = sheet.FindColumnByPosition(location.X, out col);
if (col >= 0)
{
// adjust columns width
if (inSeparator &&
buttons == MouseButtons.Left &&
sheet.HasSettings(WorksheetSettings.Edit_AllowAdjustColumnWidth))
{
sheet.currentColWidthChanging = col;
sheet.operationStatus = OperationStatus.AdjustColumnWidth;
sheet.controlAdapter.ChangeCursor(CursorStyle.ChangeColumnWidth);
sheet.RequestInvalidate();
this.headerAdjustBackup = sheet.headerAdjustNewValue = sheet.cols[sheet.currentColWidthChanging].InnerWidth;
this.SetFocus();
isProcessed = true;
}
if (!isProcessed)
{
var header = sheet.cols[col];
if (header.Body != null)
{
// let body to decide the mouse behavior
var arg = new WorksheetMouseEventArgs(sheet, new Point(
((location.X - header.Left) * this.scaleFactor),
(location.Y / this.scaleFactor)),
new Point((location.X - header.Left) * this.scaleFactor + this.Left,
location.Y / this.scaleFactor), buttons, 1);
isProcessed = header.Body.OnMouseDown(
new Size(header.InnerWidth * this.scaleFactor, sheet.colHeaderHeight), arg);
}
}
if (!isProcessed
// do not allow to select column if selection mode is null
&& sheet.selectionMode != WorksheetSelectionMode.None)
{
bool isFullColSelected =
(sheet.selectionMode == WorksheetSelectionMode.Range &&
sheet.selectionRange.Rows == sheet.rows.Count &&
sheet.selectionRange.ContainsColumn(col));
// select whole column
if ((!isFullColSelected || buttons == MouseButtons.Left))
{
sheet.operationStatus = OperationStatus.FullColumnSelect;
sheet.controlAdapter.ChangeCursor(CursorStyle.FullColumnSelect);
SetFocus();
sheet.SelectRangeStartByMouse(this.PointToController(location));
isProcessed = true;
}
}
// show context menu
if (buttons == MouseButtons.Right)
{
sheet.ControlAdapter.ShowContextMenuStrip(ViewTypes.ColumnHeader, this.PointToController(location));
}
}
break;
}
return(isProcessed);
}
