/// <summary>
/// Calculates the space used for the Y axis.
/// </summary>
internal override void Format()
{
AxisRendererInfo yari = ((ChartRendererInfo)_rendererParms.RendererInfo).yAxisRendererInfo;
if (yari._axis != null)
{
XGraphics gfx = _rendererParms.Graphics;
XSize size = new XSize(0, 0);
// height of all ticklabels
double yMin = yari.MinimumScale;
double yMax = yari.MaximumScale;
double yMajorTick = yari.MajorTick;
double lineHeight = Double.MinValue;
XSize labelSize = new XSize(0, 0);
for (double y = yMin; y <= yMax; y += yMajorTick)
{
string str = y.ToString(yari.TickLabelsFormat);
labelSize = gfx.MeasureString(str, yari.TickLabelsFont);
size.Height += labelSize.Height;
size.Width = Math.Max(size.Width, labelSize.Width);
lineHeight = Math.Max(lineHeight, labelSize.Height);
}
// add space for tickmarks
size.Width += yari.MajorTickMarkWidth * 1.5;
// Measure axis title
XSize titleSize = new XSize(0, 0);
if (yari._axisTitleRendererInfo != null)
{
RendererParameters parms = new RendererParameters
{
Graphics = gfx,
RendererInfo = yari
};
AxisTitleRenderer atr = new AxisTitleRenderer(parms);
atr.Format();
titleSize.Height = yari._axisTitleRendererInfo.Height;
titleSize.Width = yari._axisTitleRendererInfo.Width;
}
yari.Height = Math.Max(size.Height, titleSize.Height);
yari.Width = size.Width + titleSize.Width;
yari.InnerRect = yari.Rect;
yari.InnerRect.Y += yari.TickLabelsFont.Height / 2;
yari.LabelSize = labelSize;
}
}
/// <summary>
/// Draws the vertical Y axis.
/// </summary>
internal override void Draw()
{
AxisRendererInfo yari = ((ChartRendererInfo)_rendererParms.RendererInfo).yAxisRendererInfo;
double yMin = yari.MinimumScale;
double yMax = yari.MaximumScale;
double yMajorTick = yari.MajorTick;
double yMinorTick = yari.MinorTick;
XMatrix matrix = new XMatrix();
matrix.TranslatePrepend(-yari.InnerRect.X, yMax);
matrix.Scale(1, yari.InnerRect.Height / (yMax - yMin), XMatrixOrder.Append);
matrix.ScalePrepend(1, -1); // mirror horizontal
matrix.Translate(yari.InnerRect.X, yari.InnerRect.Y, XMatrixOrder.Append);
// Draw axis.
// First draw tick marks, second draw axis.
double majorTickMarkStart = 0, majorTickMarkEnd = 0,
minorTickMarkStart = 0, minorTickMarkEnd = 0;
GetTickMarkPos(yari, ref majorTickMarkStart, ref majorTickMarkEnd, ref minorTickMarkStart, ref minorTickMarkEnd);
XGraphics gfx = _rendererParms.Graphics;
LineFormatRenderer lineFormatRenderer = new LineFormatRenderer(gfx, yari.LineFormat);
LineFormatRenderer minorTickMarkLineFormat = new LineFormatRenderer(gfx, yari.MinorTickMarkLineFormat);
LineFormatRenderer majorTickMarkLineFormat = new LineFormatRenderer(gfx, yari.MajorTickMarkLineFormat);
XPoint[] points = new XPoint[2];
// Draw minor tick marks.
if (yari.MinorTickMark != TickMarkType.None)
{
for (double y = yMin + yMinorTick; y < yMax; y += yMinorTick)
{
points[0].X = minorTickMarkStart;
points[0].Y = y;
points[1].X = minorTickMarkEnd;
points[1].Y = y;
matrix.TransformPoints(points);
minorTickMarkLineFormat.DrawLine(points[0], points[1]);
}
}
double lineSpace = yari.TickLabelsFont.GetHeight(); // old: yari.TickLabelsFont.GetHeight(gfx);
int cellSpace = yari.TickLabelsFont.FontFamily.GetLineSpacing(yari.TickLabelsFont.Style);
double xHeight = yari.TickLabelsFont.Metrics.XHeight;
XSize labelSize = new XSize(0, 0)
{
Height = lineSpace * xHeight / cellSpace
};
int countTickLabels = (int)((yMax - yMin) / yMajorTick) + 1;
for (int i = 0; i < countTickLabels; ++i)
{
double y = yMin + yMajorTick * i;
string str = y.ToString(yari.TickLabelsFormat);
labelSize.Width = gfx.MeasureString(str, yari.TickLabelsFont).Width;
// Draw major tick marks.
if (yari.MajorTickMark != TickMarkType.None)
{
labelSize.Width += yari.MajorTickMarkWidth * 1.5;
points[0].X = majorTickMarkStart;
points[0].Y = y;
points[1].X = majorTickMarkEnd;
points[1].Y = y;
matrix.TransformPoints(points);
majorTickMarkLineFormat.DrawLine(points[0], points[1]);
}
else
{
labelSize.Width += SpaceBetweenLabelAndTickmark;
}
// Draw label text.
XPoint[] layoutText = new XPoint[1];
layoutText[0].X = yari.InnerRect.X + yari.InnerRect.Width - labelSize.Width;
layoutText[0].Y = y;
matrix.TransformPoints(layoutText);
layoutText[0].Y += labelSize.Height / 2; // Center text vertically.
gfx.DrawString(str, yari.TickLabelsFont, yari.TickLabelsBrush, layoutText[0]);
}
// Draw axis.
if (yari.LineFormat != null && yari.LineFormat.Width > 0)
{
points[0].X = yari.InnerRect.X + yari.InnerRect.Width;
points[0].Y = yMin;
points[1].X = yari.InnerRect.X + yari.InnerRect.Width;
points[1].Y = yMax;
matrix.TransformPoints(points);
if (yari.MajorTickMark != TickMarkType.None)
{
// yMax is at the upper side of the axis
points[1].Y -= yari.LineFormat.Width / 2;
points[0].Y += yari.LineFormat.Width / 2;
}
lineFormatRenderer.DrawLine(points[0], points[1]);
}
// Draw axis title
if (yari._axisTitleRendererInfo != null && yari._axisTitleRendererInfo.AxisTitleText != "")
{
RendererParameters parms = new RendererParameters
{
Graphics = gfx,
RendererInfo = yari
};
double width = yari._axisTitleRendererInfo.Width;
yari._axisTitleRendererInfo.Rect = yari.InnerRect;
yari._axisTitleRendererInfo.Width = width;
AxisTitleRenderer atr = new AxisTitleRenderer(parms);
atr.Draw();
}
}
/// <summary>
/// Draws the vertical Y axis.
/// </summary>
internal override void Draw()
{
AxisRendererInfo yari = ((ChartRendererInfo)_rendererParms.RendererInfo).yAxisRendererInfo;
double yMin = yari.MinimumScale;
double yMax = yari.MaximumScale;
double yMajorTick = yari.MajorTick;
double yMinorTick = yari.MinorTick;
XMatrix matrix = new XMatrix();
matrix.TranslatePrepend(-yMin, -yari.Y);
matrix.Scale(yari.InnerRect.Width / (yMax - yMin), 1, XMatrixOrder.Append);
matrix.Translate(yari.X, yari.Y, XMatrixOrder.Append);
// Draw axis.
// First draw tick marks, second draw axis.
double majorTickMarkStart = 0, majorTickMarkEnd = 0,
minorTickMarkStart = 0, minorTickMarkEnd = 0;
GetTickMarkPos(yari, ref majorTickMarkStart, ref majorTickMarkEnd, ref minorTickMarkStart, ref minorTickMarkEnd);
XGraphics gfx = _rendererParms.Graphics;
LineFormatRenderer lineFormatRenderer = new LineFormatRenderer(gfx, yari.LineFormat);
XPoint[] points = new XPoint[2];
if (yari.MinorTickMark != TickMarkType.None)
{
for (double y = yMin + yMinorTick; y < yMax; y += yMinorTick)
{
points[0].X = y;
points[0].Y = minorTickMarkStart;
points[1].X = y;
points[1].Y = minorTickMarkEnd;
matrix.TransformPoints(points);
lineFormatRenderer.DrawLine(points[0], points[1]);
}
}
XStringFormat xsf = new XStringFormat
{
LineAlignment = XLineAlignment.Near
};
int countTickLabels = (int)((yMax - yMin) / yMajorTick) + 1;
for (int i = 0; i < countTickLabels; ++i)
{
double y = yMin + yMajorTick * i;
string str = y.ToString(yari.TickLabelsFormat);
XSize labelSize = gfx.MeasureString(str, yari.TickLabelsFont);
if (yari.MajorTickMark != TickMarkType.None)
{
labelSize.Height += 1.5f * yari.MajorTickMarkWidth;
points[0].X = y;
points[0].Y = majorTickMarkStart;
points[1].X = y;
points[1].Y = majorTickMarkEnd;
matrix.TransformPoints(points);
lineFormatRenderer.DrawLine(points[0], points[1]);
}
XPoint[] layoutText = new XPoint[1];
layoutText[0].X = y;
layoutText[0].Y = yari.Y + 1.5 * yari.MajorTickMarkWidth;
matrix.TransformPoints(layoutText);
layoutText[0].X -= labelSize.Width / 2; // Center text vertically.
gfx.DrawString(str, yari.TickLabelsFont, yari.TickLabelsBrush, layoutText[0], xsf);
}
if (yari.LineFormat != null)
{
points[0].X = yMin;
points[0].Y = yari.Y;
points[1].X = yMax;
points[1].Y = yari.Y;
matrix.TransformPoints(points);
if (yari.MajorTickMark != TickMarkType.None)
{
// yMax is at the upper side of the axis
points[0].X -= yari.LineFormat.Width / 2;
points[1].X += yari.LineFormat.Width / 2;
}
lineFormatRenderer.DrawLine(points[0], points[1]);
}
// Draw axis title
if (yari._axisTitleRendererInfo != null)
{
RendererParameters parms = new RendererParameters
{
Graphics = gfx,
RendererInfo = yari
};
XRect rcTitle = yari.Rect;
rcTitle.Height = yari._axisTitleRendererInfo.Height;
rcTitle.Y += yari.Rect.Height - rcTitle.Height;
yari._axisTitleRendererInfo.Rect = rcTitle;
AxisTitleRenderer atr = new AxisTitleRenderer(parms);
atr.Draw();
}
}