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[apps/graph/graph] GraphController accesses the app directly

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This commit is contained in:
Ruben Dashyan
2019-07-18 17:31:53 +02:00
committed by EmilieNumworks
parent 14835d0454
commit 2c9489966d
4 changed files with 12 additions and 12 deletions
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12
apps/graph/graph/graph_controller_helper.cpp
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@@ -9,24 +9,24 @@ using namespace Poincare;
namespace Graph {
bool GraphControllerHelper::privateMoveCursorHorizontally(Shared::CurveViewCursor * cursor, int direction, Shared::InteractiveCurveViewRange * range, int numberOfStepsInGradUnit, Ion::Storage::Record record, App * app) {
ExpiringPointer<CartesianFunction> function = app->functionStore()->modelForRecord(record);
bool GraphControllerHelper::privateMoveCursorHorizontally(Shared::CurveViewCursor * cursor, int direction, Shared::InteractiveCurveViewRange * range, int numberOfStepsInGradUnit, Ion::Storage::Record record) {
ExpiringPointer<CartesianFunction> function = app()->functionStore()->modelForRecord(record);
double xCursorPosition = cursor->x();
double x = direction > 0 ? xCursorPosition + range->xGridUnit()/numberOfStepsInGradUnit : xCursorPosition - range->xGridUnit()/numberOfStepsInGradUnit;
double y = function->evaluateAtAbscissa(x, app->localContext());
double y = function->evaluateAtAbscissa(x, app()->localContext());
cursor->moveTo(x, y);
return true;
}
void GraphControllerHelper::reloadDerivativeInBannerViewForCursorOnFunction(Shared::CurveViewCursor * cursor, Ion::Storage::Record record, App * app) {
ExpiringPointer<CartesianFunction> function = app->functionStore()->modelForRecord(record);
void GraphControllerHelper::reloadDerivativeInBannerViewForCursorOnFunction(Shared::CurveViewCursor * cursor, Ion::Storage::Record record) {
ExpiringPointer<CartesianFunction> function = app()->functionStore()->modelForRecord(record);
constexpr size_t bufferSize = FunctionBannerDelegate::k_maxNumberOfCharacters+PrintFloat::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits);
char buffer[bufferSize];
const char * space = " ";
int numberOfChar = function->derivativeNameWithArgument(buffer, bufferSize, CartesianFunction::Symbol());
const char * legend = "=";
numberOfChar += strlcpy(buffer+numberOfChar, legend, bufferSize-numberOfChar);
double y = function->approximateDerivative(cursor->x(), app->localContext());
double y = function->approximateDerivative(cursor->x(), app()->localContext());
numberOfChar += PoincareHelpers::ConvertFloatToText<double>(y, buffer + numberOfChar, bufferSize-numberOfChar, Constant::ShortNumberOfSignificantDigits);
strlcpy(buffer+numberOfChar, space, bufferSize-numberOfChar);
bannerView()->derivativeView()->setText(buffer);