Create SimpleFont public property to be used for TextFormat.
TextFormat can be declared and assigned once, then re-used.
TextLayout not so much. I would recommend using() statement.
While you do not need a TextLayout to just render a DrawText.
Easier to grab the height and length of string from Metrics.
public class HTBlank : Indicator
{
private bool isConfigSet = false;
private string myString = "Test String";
private SharpDX.DirectWrite.TextFormat myTextFormat;
protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = @"";
Name = "HTBlank";
Calculate = Calculate.OnBarClose;
IsOverlay = true;
PaintPriceMarkers = false;
ScaleJustification = NinjaTrader.Gui.Chart.ScaleJustification.Right;
IsSuspendedWhileInactive = true;
MyStroke = new Stroke(System.Windows.Media.Brushes.Red, NinjaTrader.Gui.DashStyleHelper.Dash, 2f, 100);
MySimpleFont = new NinjaTrader.Gui.Tools.SimpleFont("Arial", 16) { Size = 16, Bold = true };
}
else if (State == State.Configure)
{
isConfigSet = true;
myTextFormat = MySimpleFont.ToDirectWriteTextFormat();
myTextFormat.TextAlignment = SharpDX.DirectWrite.TextAlignment.Leading;
}
else if (State == State.Terminated)
{
if(!isConfigSet) return;
if(myTextFormat != null)
{
myTextFormat.Dispose();
myTextFormat = null;
}
}
}
protected override void OnBarUpdate() { }
public override void OnRenderTargetChanged()
{
if (RenderTarget != null) MyStroke.RenderTarget = RenderTarget;
}
protected override void OnRender(ChartControl chartControl, ChartScale chartScale)
{
if(IsInHitTest || RenderTarget == null || ChartPanel == null || myTextFormat == null || MyStroke == null) return;
base.OnRender(chartControl, chartScale);
//DrawLine
float y = (ChartPanel.H - ChartPanel.Y) / 2f;
RenderTarget.DrawLine(new SharpDX.Vector2(ChartPanel.X, y), new SharpDX.Vector2(ChartPanel.W, y), MyStroke.BrushDX, MyStroke.Width, MyStroke.StrokeStyle);
//DrawText
float x = (ChartPanel.W - ChartPanel.X) / 2f;
RenderTarget.DrawText(myString, myTextFormat, new SharpDX.RectangleF(x, y, 250f, 50f ), MyStroke.BrushDX);
//DrawTextLayout
using(SharpDX.DirectWrite.TextLayout myTextLayout = new SharpDX.DirectWrite.TextLayout(Core.Globals.DirectWriteFactory, myString, myTextFormat, 250f, 50f))
{
RenderTarget.DrawTextLayout(new SharpDX.Vector2(x - myTextLayout.Metrics.Width/2, y - myTextLayout.Metrics.Height), myTextLayout, MyStroke.BrushDX);
}
}
[Display(Name="MyStoke", Description=@"MyStoke", Order=0, GroupName="Settings")]
public Stroke MyStroke { get; set; }
[Display(Name="MySimpleFont", Description=@"MySimpleFont", Order=1, GroupName="Settings")]
public SimpleFont MySimpleFont { get; set; }
}Be Safe in this Crazy World!
