QuickStart - ChartObjects

bellong
07 Apr 2014, 15:50

RE: how to change default font text size ?

Spotware said:

// ---------------------------------------------------------------------------------------
//
//    This code demonstrates use of ChartObjects
//    It shows the maximum of a DataSeries for a period.
//
// ---------------------------------------------------------------------------------------

using System;
using cAlgo.API;

namespace cAlgo.Indicators
{
    [Indicator(IsOverlay = true)]
    public class ChartObjectsSample : Indicator
    {
        [Parameter("Source")]
        public DataSeries Source { get; set; }

        [Parameter("Period", DefaultValue = 30, MinValue = 3)]
        public int Period { get; set; }

        [Parameter("Text Color", DefaultValue = "Yellow")]
        public string TextColor { get; set; }

        [Parameter("Line Color", DefaultValue = "White")]
        public string LineColor { get; set; }


        private Colors _colorText;
        private Colors _colorLine;

        protected override void Initialize()
        {
            // Parse color from string

            if (!Enum.TryParse(TextColor, out _colorText))
            {
                ChartObjects.DrawText("errorMsg1", "Invalid Color for Text", StaticPosition.TopLeft, Colors.Red); 
                _colorText = Colors.Yellow;
            }

            if (!Enum.TryParse(LineColor, out _colorLine))
            {                
                ChartObjects.DrawText("errorMsg2", "\nInvalid Color for Line", StaticPosition.TopLeft, Colors.Red);
                _colorLine = Colors.White;
            }
        }

        public override void Calculate(int index)
        {
            if (!IsLastBar) return;

            ChartObjects.DrawVerticalLine("vLine", index - Period, _colorLine);

            int maxIndex=index;
            double max = Source[index];

            for (int i = index - Period; i <= index; i++)
            {
                if (max >= Source[i])
                    continue;
                                       
                max = Source[i];
                maxIndex = i;

            }

            var text = "max " + max.ToString("0.0000");
            var top = VerticalAlignment.Top;
            var center = HorizontalAlignment.Center;

            ChartObjects.DrawText("max", text, maxIndex, max, top, center, _colorText);       
            ChartObjects.DrawLine("line", maxIndex, max, index, 
                                       Source[index], _colorLine);
        }
    }
}

 

I have uploaded the indicator "draw spread" from your repo; and try to set a bigger font text size for displaying the "spread".  But im not lucky with my tweaks: how to insert the font size parameter ?

cTrader Team
07 Apr 2014, 16:09

At the moment it is not possible to change the font size.

ABR170173
17 Jul 2015, 13:55

RE:

Spotware said:

At the moment it is not possible to change the font size.

Does something has been changed in this case? Is possible to change font parameters now?

cTrader Team
17 Jul 2015, 14:23

Dear Traders,

This option is still not available. For your information you can post your ideas/suggestions to http://vote.spotware.com/.