protected override void OnRender(ChartControl chartControl, ChartScale chartScale)
{
// Create a Font, Brush and TextFormat to draw our text.
// For more information on drawing Text, please see the source code for the Text DrawingTool
var font = new Gui.Tools.SimpleFont("Arial", 20);
SharpDX.Direct2D1.Brush tmpBrush = Brushes.Red.ToDxBrush(RenderTarget);
SharpDX.DirectWrite.TextFormat textFormat = font.ToDirectWriteTextFormat();
// Create a TextLayout for our text to draw.
var cachedTextLayout = new SharpDX.DirectWrite.TextLayout(Core.Globals.DirectWriteFactory, "Hello, I am sideways text.", textFormat, 600, textFormat.FontSize);
// Rotate the RenderTarget by setting the Matrix3x2 Transform property
// Matrix3x2.Rotation() will return a rotated Matrix3x2 based off of the angle specified, and the center point where you draw the object
RenderTarget.Transform = Matrix3x2.Rotation(1.5708f, new Vector2(100, 100));
// Draw the text on the rotated RenderTarget
RenderTarget.DrawTextLayout(new SharpDX.Vector2(100, 100), cachedTextLayout, tmpBrush, SharpDX.Direct2D1.DrawTextOptions.NoSnap);
// Dispose of resources
textFormat.Dispose();
cachedTextLayout.Dispose();
tmpBrush.Dispose();
// Rotate the RenderTarget back
RenderTarget.Transform = Matrix3x2.Identity;
// Return rendering to base class
base.OnRender(chartControl, chartScale);
}
protected void DrawPriceLevelText(double minX, double maxX, Point endPoint, PriceLevel priceLevel, ChartPanel panel)
{
Gui.Tools.SimpleFont wpfFont = panel.ChartControl.Properties.LabelFont ?? new Gui.Tools.SimpleFont();
SharpDX.DirectWrite.TextFormat dxTextFormat = wpfFont.ToDirectWriteTextFormat();
string str = string.Format("{0}", (priceLevel.Value / 100).ToString("P"));
SharpDX.DirectWrite.TextLayout textLayout = new SharpDX.DirectWrite.TextLayout(Core.Globals.DirectWriteFactory, str, dxTextFormat, panel.H, dxTextFormat.FontSize);
float usedFontHeight = textLayout.Metrics.Height;
float usedFontWidth = textLayout.Metrics.Width;
Point textEndPoint = endPoint;
double maxWidth = panel.X + panel.W;
double maxHeight = panel.Y + panel.H;
double minWidth = panel.X;
double minHeight = panel.Y;
if (textEndPoint.Y + usedFontHeight >= maxHeight)
{
textEndPoint.Y = maxHeight - usedFontHeight; // Set to bottom
}
if (textEndPoint.Y < minHeight) // Set to top
{
textEndPoint.Y = minHeight;
}
if (textEndPoint.X + usedFontWidth >= maxWidth)
{
textEndPoint.X = maxWidth - usedFontWidth; //Set to right side;
}
if (textEndPoint.X < minWidth)
{
textEndPoint.X = minWidth; // Set to left side;
}
RenderTarget.DrawTextLayout(new SharpDX.Vector2((float)(textEndPoint.X), (float)(textEndPoint.Y)), textLayout,
priceLevel.Stroke.BrushDX, SharpDX.Direct2D1.DrawTextOptions.NoSnap);
dxTextFormat.Dispose();
textLayout.Dispose();
}