/// <summary>
/// Display all text on chart for all columns
/// </summary>
/// <param name="e"></param>
/// <param name="columnWidth"></param>
/// <param name="columnWidthNoMargin"></param>
/// <param name="columnStartOffset"></param>
/// <param name="verticalAxisMaxValueInPixels"></param>
/// <param name="lowerLeftX"></param>
/// <param name="lowerLeftY"></param>
virtual protected void DisplayColumnsText(System.Windows.Forms.PaintEventArgs e, int columnWidth, int columnWidthNoMargin, int columnStartOffset, int verticalAxisMaxValueInPixels, int lowerLeftX, int lowerLeftY)
{
int offset;
int offsetFor0;
IEnumerator Iterator = this.ChartDescription.Columns.GetEnumerator();
int columnCurrentOffset = columnStartOffset;
System.Diagnostics.Debug.Assert(this.ChartDescription.VerticalAxisMaxValue - this.ChartDescription.VerticalAxisMinValue != 0);
offsetFor0 = (-this.ChartDescription.VerticalAxisMinValue) * verticalAxisMaxValueInPixels / (this.ChartDescription.VerticalAxisMaxValue - this.ChartDescription.VerticalAxisMinValue);
while (Iterator.MoveNext())
{
ChartColumn currentColumn = (ChartColumn)Iterator.Current;
if (this.ChartDescription.CumulativeMode == ChartCumulativeMode.StartFromLastValue)
{
Debug.Assert(currentColumn.PositiveValuesSum <= this.ChartDescription.VerticalAxisMaxValue, "Chart.OnPaintBackground", "Vertical axis overflow, verify why current column value is higher than axis vertical value");
}
if (this.ChartDescription.CumulativeMode == ChartCumulativeMode.StartFrom0)
{
if (currentColumn.HighestValue >= 0)
{
offset = offsetFor0 + (verticalAxisMaxValueInPixels * currentColumn.HighestValue / (this.ChartDescription.VerticalAxisMaxValue - this.ChartDescription.VerticalAxisMinValue));
}
else
{
// In this case, align text on the '0' line offset
offset = offsetFor0;
}
}
else if (this.ChartDescription.CumulativeMode == ChartCumulativeMode.StartFromLastValue)
{
offset = offsetFor0 + (verticalAxisMaxValueInPixels * currentColumn.PositiveValuesSum / (this.ChartDescription.VerticalAxisMaxValue - this.ChartDescription.VerticalAxisMinValue));
}
else
{
Debug.Assert(this.ChartDescription.CumulativeMode == ChartCumulativeMode.Max, "Chart.OnPaintBackground", "Cumulative mode not managed");
offset = 0;
}
int AbsoluteSum = currentColumn.PositiveValuesSum - currentColumn.NegativeValuesSum;
// Compute sie of bouding rectangle
System.Drawing.SizeF Size = e.Graphics.MeasureString(AbsoluteSum.ToString(CultureInfo.InvariantCulture), this.ChartDescription.ColumnFont);
PointF Base0 = new PointF((float)columnCurrentOffset, (float)(lowerLeftY - offset) - Size.Height);
RectangleF backgroundRectangle = new RectangleF(Base0, Size);
// Align rectangle on column width
backgroundRectangle.X = columnCurrentOffset + this.ChartDescription.MarginBetweenColumn / 2 + ((columnWidthNoMargin - backgroundRectangle.Width) / 2);
currentColumn.DisplayText(e, this, backgroundRectangle);
// Jump to next offset
columnCurrentOffset += columnWidth;
}
}
