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build3/apps/shared/function_banner_delegate.cpp 1.53 KB
6663b6c9   adorian   projet complet av...
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  #include "function_banner_delegate.h"
  #include "../constant.h"
  
  using namespace Poincare;
  
  namespace Shared {
  
  void FunctionBannerDelegate::reloadBannerViewForCursorOnFunction(CurveViewCursor * cursor, Function * function, char symbol) {
    char buffer[k_maxNumberOfCharacters+PrintFloat::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits)];
    const char * space = "                  ";
    int spaceLength = strlen(space);
    const char * legend = "0=";
    int legendLength = strlen(legend);
    int numberOfChar = 0;
    strlcpy(buffer, legend, legendLength+1);
    numberOfChar += legendLength;
    buffer[0] = symbol;
    numberOfChar += Complex<float>::convertFloatToText(cursor->x(), buffer+numberOfChar, PrintFloat::bufferSizeForFloatsWithPrecision(Constant::MediumNumberOfSignificantDigits), Constant::MediumNumberOfSignificantDigits);
    strlcpy(buffer+numberOfChar, space, spaceLength+1);
    buffer[k_maxDigitLegendLength+2] = 0;
    bannerView()->setLegendAtIndex(buffer, 0);
  
    numberOfChar = 0;
    legend = "0(x)=";
    legendLength = strlen(legend);
    numberOfChar += legendLength;
    strlcpy(buffer, legend, legendLength+1);
    buffer[2] = symbol;
    buffer[0] = function->name()[0];
    numberOfChar += Complex<float>::convertFloatToText(cursor->y(), buffer+legendLength, PrintFloat::bufferSizeForFloatsWithPrecision(Constant::MediumNumberOfSignificantDigits), Constant::MediumNumberOfSignificantDigits);
    strlcpy(buffer+numberOfChar, space, spaceLength+1);
    buffer[k_maxDigitLegendLength+5] = 0;
    bannerView()->setLegendAtIndex(buffer, 1);
  }
  
  }