<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1486216445744_2667">Dear Members,<o:p id="yui_3_16_0_ym19_1_1486216445744_2668"></o:p></div><div id="yui_3_16_0_ym19_1_1486216445744_2669">I need help and have a question about the performance of
text coloring in NSTextView. I have used NSAttributedString<span style="mso-spacerun:yes" id="yui_3_16_0_ym19_1_1486216445744_2670"> </span>and NSForegroundColorAttributeName,
NSBackgroundColorAttributeName to color the string about 20 000 characters and
more. I have found quite significant slow down<span style="mso-spacerun:yes" id="yui_3_16_0_ym19_1_1486216445744_2671"> </span>depending on number of colours, and whether I
use NSForegroundColorAttributeName or NSBackgroundColorAttributeName. It is
matter of seconds and minutes !!! It makes almost not possible to work with a string
of thousands up to millions of characters, which is standard to work with DNA
sequences (sequences composed by A, T, G and C). Is there a hope to solve this
problem ? I have asked this question on <a href="http://stackoverflow.com/questions/41962952/how-to-use-colour-for-text-colouring-without-slowing-down-the-process." id="yui_3_16_0_ym19_1_1486216445744_2736">http://stackoverflow.com/questions/41962952/how-to-use-colour-for-text-colouring-without-slowing-down-the-process
.</a> No answer.<span style="mso-spacerun:yes" id="yui_3_16_0_ym19_1_1486216445744_2672"> </span>This bad thing is blocking Swift usage
for molecular biology.</div><div id="yui_3_16_0_ym19_1_1486216445744_2676">Best wishes,<o:p id="yui_3_16_0_ym19_1_1486216445744_2677"></o:p></div><div id="yui_3_16_0_ym19_1_1486216445744_2596">
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