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[graph] Create a static method StorageCartesianFunctionStore::Symbol()

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This commit is contained in:
Émilie Feral
2018-10-18 18:07:34 +02:00
parent 4dbd7583e0
commit 8e2a30ab8e
11 changed files with 17 additions and 14 deletions
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6
apps/graph/graph/intersection_graph_controller.cpp
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@@ -18,18 +18,18 @@ const char * IntersectionGraphController::title() {
void IntersectionGraphController::reloadBannerView() {
m_bannerView->setNumberOfSubviews(2);
reloadBannerViewForCursorOnFunction(m_cursor, m_record, functionStore(), 'x');
reloadBannerViewForCursorOnFunction(m_cursor, m_record, functionStore(), StorageCartesianFunctionStore::Symbol());
constexpr size_t bufferSize = FunctionBannerDelegate::k_maxNumberOfCharacters+Poincare::PrintFloat::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits);
char buffer[bufferSize];
const char * space = " ";
const char * legend = "=";
// 'f(x)=g(x)=', keep 2 chars for '='
StorageCartesianFunction * f = functionStore()->modelForRecord(m_record);
int numberOfChar = f->nameWithArgument(buffer, bufferSize-2, 'x');
int numberOfChar = f->nameWithArgument(buffer, bufferSize-2, StorageCartesianFunctionStore::Symbol());
numberOfChar += strlcpy(buffer+numberOfChar, legend, bufferSize-numberOfChar);
// keep 1 char for '=';
StorageCartesianFunction * g = functionStore()->modelForRecord(m_intersectedRecord);
numberOfChar += g->nameWithArgument(buffer, bufferSize-numberOfChar-1, 'x');
numberOfChar += g->nameWithArgument(buffer, bufferSize-numberOfChar-1, StorageCartesianFunctionStore::Symbol());
numberOfChar += strlcpy(buffer+numberOfChar, legend, bufferSize-numberOfChar);
numberOfChar += PoincareHelpers::ConvertFloatToText<double>(m_cursor->y(), buffer+numberOfChar, bufferSize-numberOfChar, Constant::MediumNumberOfSignificantDigits);
strlcpy(buffer+numberOfChar, space, bufferSize-numberOfChar);