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"Almost equal to" sign in banner views

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This commit is contained in:
Ruben Dashyan
2019-09-23 14:48:08 +02:00
committed by EmilieNumworks
parent 20abac86f4
commit bd5a247858
5 changed files with 15 additions and 15 deletions
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14
apps/graph/graph/intersection_graph_controller.cpp
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@@ -1,7 +1,7 @@
#include "intersection_graph_controller.h"
#include <ion/unicode/utf8_decoder.h>
#include "../../shared/poincare_helpers.h"
#include <poincare/preferences.h>
#include <poincare/serialization_helper.h>
using namespace Shared;
@@ -22,17 +22,15 @@ void IntersectionGraphController::reloadBannerView() {
constexpr size_t bufferSize = FunctionBannerDelegate::k_maxNumberOfCharacters+Poincare::PrintFloat::bufferSizeForFloatsWithPrecision(Poincare::Preferences::LargeNumberOfSignificantDigits);
char buffer[bufferSize];
const char * space = " ";
const char * legend = "=";
// 'f(x)=g(x)=', keep 2 chars for '='
// 'f(x)=g(x)≈'
ExpiringPointer<ContinuousFunction> f = functionStore()->modelForRecord(m_record);
int numberOfChar = f->nameWithArgument(buffer, bufferSize-2);
int numberOfChar = f->nameWithArgument(buffer, bufferSize - UTF8Decoder::CharSizeOfCodePoint('=') - UTF8Decoder::CharSizeOfCodePoint(UCodePointAlmostEqualTo));
assert(numberOfChar <= bufferSize);
numberOfChar += strlcpy(buffer+numberOfChar, legend, bufferSize-numberOfChar);
// keep 1 char for '=';
numberOfChar += strlcpy(buffer+numberOfChar, "=", bufferSize-numberOfChar);
ExpiringPointer<ContinuousFunction> g = functionStore()->modelForRecord(m_intersectedRecord);
numberOfChar += g->nameWithArgument(buffer+numberOfChar, bufferSize-numberOfChar-1);
numberOfChar += g->nameWithArgument(buffer + numberOfChar, bufferSize - numberOfChar - UTF8Decoder::CharSizeOfCodePoint(UCodePointAlmostEqualTo));
assert(numberOfChar <= bufferSize);
numberOfChar += strlcpy(buffer+numberOfChar, legend, bufferSize-numberOfChar);
numberOfChar += UTF8Decoder::CodePointToChars(UCodePointAlmostEqualTo, buffer+numberOfChar, bufferSize-numberOfChar);
numberOfChar += PoincareHelpers::ConvertFloatToText<double>(m_cursor->y(), buffer+numberOfChar, bufferSize-numberOfChar, Poincare::Preferences::MediumNumberOfSignificantDigits);
assert(numberOfChar <= bufferSize);
strlcpy(buffer+numberOfChar, space, bufferSize-numberOfChar);