/// <summary>
/// Render axis information view.
/// </summary>
/// <param name="dc">Platform no-associated drawing context instance.</param>
protected override void OnPaint(DrawingContext dc)
{
base.OnPaint(dc);
var ai = AxisInfo;
if (ai == null)
{
return;
}
var g = dc.Graphics;
var ds = Chart.DataSource;
var clientRect = ClientBounds;
RGFloat fontHeight = (RGFloat)(this.FontSize * PlatformUtility.GetDPI() / 72.0) + 4;
double rowValue = ai.Minimum;
if (Orientation == AxisOrientation.Vertical)
{
RGFloat stepY = (clientRect.Height - fontHeight) / ai.Levels;
var textRect = new Rectangle(0, clientRect.Bottom - fontHeight, clientRect.Width, fontHeight);
for (int level = 0; level <= ai.Levels; level++)
{
g.DrawText(Math.Round(rowValue, Math.Abs(ai.Scaler)).ToString(), FontName, FontSize, ForeColor, textRect, ReoGridHorAlign.Right, ReoGridVerAlign.Middle);
textRect.Y -= stepY;
rowValue += Math.Round(ai.LargeStride, Math.Abs(ai.Scaler));
}
}
else if (Orientation == AxisOrientation.Horizontal)
{
var maxWidth = Math.Max(
PlatformUtility.MeasureText(dc,
Math.Round(ai.Minimum, Math.Abs(ai.Scaler)).ToString(),
FontName, FontSize, Drawing.Text.FontStyles.Regular
).Width,
PlatformUtility.MeasureText(dc,
Math.Round(ai.Maximum, Math.Abs(ai.Scaler)).ToString(),
FontName, FontSize, Drawing.Text.FontStyles.Regular
).Width);
int showTitleStride = Math.Max((int)Math.Ceiling(ai.Levels * maxWidth / clientRect.Width), 1);
RGFloat columnWidth = clientRect.Width / ai.Levels * showTitleStride;
var textRect = new Rectangle(clientRect.Left - (columnWidth / 2), clientRect.Top, columnWidth, clientRect.Height);
for (int level = 0; level <= ai.Levels; level += showTitleStride)
{
g.DrawText(Math.Round(rowValue, Math.Abs(ai.Scaler)).ToString(), FontName, FontSize, ForeColor, textRect, ReoGridHorAlign.Center, ReoGridVerAlign.Top);
textRect.X += columnWidth;
rowValue += Math.Round(ai.LargeStride, Math.Abs(ai.Scaler)) * showTitleStride;
}
}
}
/// <summary>
/// Render axis information view.
/// </summary>
/// <param name="dc">Platform no-associated drawing context instance.</param>
protected override void OnPaint(DrawingContext dc)
{
base.OnPaint(dc);
if (this.Chart == null)
{
return;
}
var ai = this.AxisType == AxisTypes.Primary ?
this.Chart.PrimaryAxisInfo : this.Chart.SecondaryAxisInfo;
if (ai == null)
{
return;
}
var g = dc.Graphics;
var ds = this.Chart.DataSource;
var clientRect = this.ClientBounds;
RGFloat fontHeight = (RGFloat)(this.FontSize * PlatformUtility.GetDPI() / 72.0) + 4;
double rowValue = ai.Minimum;
if (orientation == AxisOrientation.Vertical)
{
RGFloat stepY = (clientRect.Height - fontHeight) / ai.Levels;
var textRect = new Rectangle(0, clientRect.Bottom - fontHeight, clientRect.Width, fontHeight);
for (int level = 0; level <= ai.Levels; level++)
{
g.DrawText(Math.Round(rowValue, Math.Abs(ai.Scaler)).ToString(), this.FontName, this.FontSize, this.ForeColor, textRect, ReoGridHorAlign.Right, ReoGridVerAlign.Middle);
textRect.Y -= stepY;
rowValue += Math.Round(ai.LargeStride, Math.Abs(ai.Scaler));
}
}
else if (orientation == AxisOrientation.Horizontal)
{
RGFloat columnWidth = clientRect.Width / ai.Levels;
var textRect = new Rectangle(clientRect.Left - (columnWidth / 2), clientRect.Top, columnWidth, clientRect.Height);
for (int level = 0; level <= ai.Levels; level++)
{
g.DrawText(Math.Round(rowValue, Math.Abs(ai.Scaler)).ToString(), this.FontName, this.FontSize, this.ForeColor, textRect, ReoGridHorAlign.Center, ReoGridVerAlign.Top);
textRect.X += columnWidth;
rowValue += Math.Round(ai.LargeStride, Math.Abs(ai.Scaler));
}
}
}