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[apps] Graph: redesign TangentGraphController implementation: use

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different controller with common parent class
This commit is contained in:
Émilie Feral
2018-01-09 15:50:39 +01:00
committed by EmilieNumworks
parent 7ce68d0a11
commit 5c64f76735
11 changed files with 126 additions and 90 deletions
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70
apps/graph/graph/graph_controller.cpp
View File

@@ -11,22 +11,13 @@ GraphController::GraphController(Responder * parentResponder, CartesianFunctionS
m_bannerView(),
m_view(functionStore, curveViewRange, m_cursor, &m_bannerView, &m_cursorView),
m_graphRange(curveViewRange),
m_curveParameterController(curveViewRange, &m_bannerView, m_cursor, this),
m_curveParameterController(curveViewRange, &m_bannerView, m_cursor, &m_view, this),
m_functionStore(functionStore),
m_displayDerivativeInBanner(false)
{
m_graphRange->setDelegate(this);
}
const char * GraphController::title() {
switch(type()) {
case GraphView::Type::Tangent:
return I18n::translate(I18n::Message::Tangent);
default:
return I18n::translate(I18n::Message::GraphTab);
}
}
I18n::Message GraphController::emptyMessage() {
if (m_functionStore->numberOfDefinedFunctions() == 0) {
return I18n::Message::NoFunction;
@@ -34,28 +25,9 @@ I18n::Message GraphController::emptyMessage() {
return I18n::Message::NoActivatedFunction;
}
bool GraphController::handleEvent(Ion::Events::Event event) {
if (type() == GraphView::Type::Default || event == Ion::Events::Left || event == Ion::Events::Right || event == Ion::Events::Plus || event == Ion::Events::Minus) {
return FunctionGraphController::handleEvent(event);
}
if (type() != GraphView::Type::Default && (event == Ion::Events::Back || event == Ion::Events::OK)) {
StackViewController * stack = stackController();
setType(GraphView::Type::Default);
App * a = static_cast<App *>(app());
stack->handleEvent(Ion::Events::Back);
setParentResponder(a->graphControllerParent());
return true;
}
return false;
}
void GraphController::setType(GraphView::Type t) {
m_view.setType(t);
if (type() != GraphView::Type::Default) {
m_view.selectFunction(m_functionStore->activeFunctionAtIndex(m_indexFunctionSelectedByCursor));
} else {
m_view.selectFunction(nullptr);
}
void GraphController::viewWillAppear() {
m_view.setType(GraphView::Type::Default);
FunctionGraphController::viewWillAppear();
}
bool GraphController::displayDerivativeInBanner() const {
@@ -66,10 +38,6 @@ void GraphController::setDisplayDerivativeInBanner(bool displayDerivative) {
m_displayDerivativeInBanner = displayDerivative;
}
GraphView::Type GraphController::type() const {
return m_view.type();
}
BannerView * GraphController::bannerView() {
return &m_bannerView;
}
@@ -77,33 +45,12 @@ BannerView * GraphController::bannerView() {
void GraphController::reloadBannerView() {
FunctionGraphController::reloadBannerView();
m_bannerView.setNumberOfSubviews(2+m_displayDerivativeInBanner);
if (type() == GraphView::Type::Tangent) {
m_bannerView.setNumberOfSubviews(6);
}
if (m_functionStore->numberOfActiveFunctions() == 0) {
if (m_functionStore->numberOfActiveFunctions() == 0 || !m_displayDerivativeInBanner) {
return;
}
CartesianFunction * f = m_functionStore->activeFunctionAtIndex(m_indexFunctionSelectedByCursor);
TextFieldDelegateApp * myApp = (TextFieldDelegateApp *)app();
reloadDerivativeInBannerViewForCursorOnFunction(m_cursor, f, myApp);
char buffer[FunctionBannerDelegate::k_maxNumberOfCharacters+PrintFloat::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits)];
if (type() == GraphView::Type::Tangent) {
const char * legend = "a=";
int legendLength = strlen(legend);
strlcpy(buffer, legend, legendLength+1);
double y = f->approximateDerivative(m_cursor->x(), myApp->localContext());
Complex<double>::convertFloatToText(y, buffer + legendLength, PrintFloat::bufferSizeForFloatsWithPrecision(Constant::MediumNumberOfSignificantDigits), Constant::MediumNumberOfSignificantDigits);
m_bannerView.setLegendAtIndex(buffer, 4);
legend = "b=";
legendLength = strlen(legend);
strlcpy(buffer, legend, legendLength+1);
y = -y*m_cursor->x()+f->evaluateAtAbscissa(m_cursor->x(), myApp->localContext());
Complex<double>::convertFloatToText(y, buffer + legendLength, PrintFloat::bufferSizeForFloatsWithPrecision(Constant::MediumNumberOfSignificantDigits), Constant::MediumNumberOfSignificantDigits);
m_bannerView.setLegendAtIndex(buffer, 5);
}
}
bool GraphController::moveCursorHorizontally(int direction) {
@@ -142,11 +89,4 @@ CurveParameterController * GraphController::curveParameterController() {
return &m_curveParameterController;
}
StackViewController * GraphController::stackController() const{
if (type() != GraphView::Type::Default) {
return (StackViewController *)(parentResponder());
}
return FunctionGraphController::stackController();
}
}