protected override void DrawTicks(PdfCanvas canvas, PdfPage page)
{
base.DrawTicks(canvas, page);
try
{
float lastTickValue = float.Parse(_data.Columns[0].Label);
iText.Layout.Canvas layoutCanvas = new iText.Layout.Canvas(canvas, _pdf, new iText.Kernel.Geom.Rectangle(_canvasWidth, _canvasHeight));
layoutCanvas.SetFont(_font);
layoutCanvas.SetFontSize(_valueFontSize);
layoutCanvas.SetFontColor(_valueFontColour);
canvas.SetLineWidth(_tickLineWidth).SetStrokeColor(_tickColour);
float x = _originX;
foreach (Column column in _data.Columns)
{
float y = _originY;
float columnValue = float.Parse(column.Label);
if (columnValue >= (lastTickValue + _lineXTicksInterval))
{
lastTickValue = columnValue;
canvas.MoveTo(x, _originY);
canvas.LineTo(x, _originY + _axisHeight * _yScale);
if (_columnLabelAngle == 0.0f)
{
layoutCanvas.ShowTextAligned(column.Label, x, _originY - _columnLabelMargin, TextAlignment.CENTER, VerticalAlignment.TOP, (float)Math.PI / 180.0f * _columnLabelAngle);
}
else if (_columnLabelAngle == 90.0f)
{
layoutCanvas.ShowTextAligned(column.Label, x, _originY - _columnLabelMargin, TextAlignment.RIGHT, VerticalAlignment.MIDDLE, (float)Math.PI / 180.0f * _columnLabelAngle);
}
else
{
layoutCanvas.ShowTextAligned(column.Label, x, _originY - _columnLabelMargin, TextAlignment.RIGHT, VerticalAlignment.TOP, (float)Math.PI / 180.0f * _columnLabelAngle);
}
}
x += _linePointSpace;
}
canvas.Stroke();
}
catch
{
// not numeric column values, bail
return;
}
}
protected override void DrawLabels(PdfCanvas canvas, PdfPage page)
{
iText.Layout.Canvas layoutCanvas = new iText.Layout.Canvas(canvas, _pdf, new iText.Kernel.Geom.Rectangle(_canvasWidth, _canvasHeight));
layoutCanvas.SetFont(_font);
layoutCanvas.SetFontSize(_valueFontSize);
layoutCanvas.SetFontColor(_valueFontColour);
float x;
if (_data.ValueLabel != null)
{
x = _originX - _valueLabelMargin;
layoutCanvas.ShowTextAligned(_data.ValueLabel, x, _originY + _axisHeight * _yScale / 2, TextAlignment.CENTER, VerticalAlignment.MIDDLE, 0.5f * (float)Math.PI);
}
if (_data.Legends.Count == 1)
{
layoutCanvas.ShowTextAligned(_data.Legends[0].Label, _originX + _axisWidth / 2, _originY - _valueLabelMargin, TextAlignment.CENTER, VerticalAlignment.MIDDLE, 0);
}
}
protected override void DrawTicks(PdfCanvas canvas, PdfPage page)
{
float i;
String text;
float textWidth;
float textHeight;
double yOffset = 0;
if (_tickLineWidth == 0.0f)
{
return;
}
if (_yAxisMin < 0)
{
yOffset = _yAxisMin * -1.0 * _yScale;
}
canvas.SetLineWidth(_tickLineWidth).SetStrokeColor(_tickColour);
// DrawTicks
for (i = (_yAxisMin + _valueAxisInterval); i <= _valueAxisMax; i += _valueAxisInterval)
{
text = i.ToString();
if (_data.FormatPercent)
{
text = text + "%";
}
textWidth = _font.GetWidth(text, _tickFontSize) + _tickLabelMargin;
textHeight = _font.GetAscent(text, _tickFontSize) + _font.GetDescent(text, _tickFontSize);
canvas.MoveTo(_originX, _originY + i * _yScale + yOffset);
canvas.LineTo(_originX + _axisWidth, _originY + i * _yScale + yOffset);
canvas.BeginText()
.SetFontAndSize(_font, _tickFontSize)
.MoveText(_originX - textWidth, _originY + i * _yScale - textHeight / 2 + yOffset)
.SetColor(_tickFontColour, true)
.ShowText(text)
.EndText();
}
canvas.Stroke();
if (_lineXTicks)
{
float lastTickValue = float.Parse(_data.Columns[0].Label);
iText.Layout.Canvas layoutCanvas = new iText.Layout.Canvas(canvas, _pdf, new iText.Kernel.Geom.Rectangle(_canvasWidth, _canvasHeight));
layoutCanvas.SetFont(_font);
layoutCanvas.SetFontSize(_valueFontSize);
layoutCanvas.SetFontColor(_valueFontColour);
canvas.SetLineWidth(_tickLineWidth).SetStrokeColor(_tickColour);
float x = _originX;
int xIndex = 0;
for (xIndex = 0; xIndex < _pointCount; xIndex += (int)_lineXTicksInterval)
{
float y = _originY;
canvas.MoveTo(_originX + xIndex * _linePointSpace, _originY);
canvas.LineTo(_originX + xIndex * _linePointSpace, _originY + _axisHeight * _yScale);
}
canvas.Stroke();
}
}