Files
Upsilon/apps/regression/go_to_parameter_controller.cpp
Émilie Feral dc6acc0d48 [apps/shared] Clip displayed range in graph view in interactive curve
view range

Change-Id: I4654a1f9c06420d6ade8a86a13c0d89f025f324f
2017-03-20 14:55:59 +01:00

124 lines
3.5 KiB
C++

#include "go_to_parameter_controller.h"
#include "../apps_container.h"
#include <assert.h>
using namespace Shared;
using namespace Poincare;
namespace Regression {
GoToParameterController::GoToParameterController(Responder * parentResponder, Store * store, CurveViewCursor * cursor) :
FloatParameterController(parentResponder),
m_abscisseCell(MessageTableCellWithEditableText(&m_selectableTableView, this, m_draftTextBuffer)),
m_store(store),
m_cursor(cursor),
m_xPrediction(true)
{
}
void GoToParameterController::setXPrediction(bool xPrediction) {
m_xPrediction = xPrediction;
}
const char * GoToParameterController::title() {
if (m_xPrediction) {
return "Prediction sachant x";
}
return "Prediction sachant y";
}
int GoToParameterController::numberOfRows() {
return 2;
}
float GoToParameterController::previousParameterAtIndex(int index) {
assert(index == 0);
return m_previousParameter;
}
float GoToParameterController::parameterAtIndex(int index) {
assert(index == 0);
if (m_xPrediction) {
return m_cursor->x();
}
return m_cursor->y();
}
bool GoToParameterController::setParameterAtIndex(int parameterIndex, float f) {
assert(parameterIndex == 0);
if (fabsf(f) > k_maxDisplayableFloat) {
app()->displayWarning(I18n::Message::ForbiddenValue);
return false;
}
if (m_xPrediction) {
float y = m_store->yValueForXValue(f);
if (fabsf(y) > k_maxDisplayableFloat) {
app()->displayWarning(I18n::Message::ForbiddenValue);
return false;
}
m_store->centerAxisAround(CurveViewRange::Axis::X, f);
m_store->centerAxisAround(CurveViewRange::Axis::Y, y);
m_cursor->moveTo(f, y);
} else {
float x = m_store->xValueForYValue(f);
if (fabsf(x) > k_maxDisplayableFloat) {
app()->displayWarning(I18n::Message::ForbiddenValue);
return false;
}
m_store->centerAxisAround(CurveViewRange::Axis::X, x);
m_store->centerAxisAround(CurveViewRange::Axis::Y, f);
m_cursor->moveTo(x, f);
}
return true;
}
HighlightCell * GoToParameterController::reusableParameterCell(int index, int type) {
assert(index == 0);
return &m_abscisseCell;
}
int GoToParameterController::reusableParameterCellCount(int type) {
return 1;
}
void GoToParameterController::willDisplayCellForIndex(HighlightCell * cell, int index) {
if (index == numberOfRows()-1) {
return;
}
MessageTableCellWithEditableText * myCell = (MessageTableCellWithEditableText *) cell;
if (m_xPrediction) {
myCell->setMessage(I18n::Message::X);
} else {
myCell->setMessage(I18n::Message::Y);
}
FloatParameterController::willDisplayCellForIndex(cell, index);
}
bool GoToParameterController::textFieldDidFinishEditing(TextField * textField, const char * text) {
AppsContainer * appsContainer = ((TextFieldDelegateApp *)app())->container();
Context * globalContext = appsContainer->globalContext();
float floatBody = Expression::parse(text)->approximate(*globalContext);
float parameter = m_store->yValueForXValue(floatBody);
if (!m_xPrediction) {
parameter = m_store->xValueForYValue(floatBody);
}
if (isnan(parameter)) {
app()->displayWarning(I18n::Message::ValueNotReachedByRegression);
return false;
}
return FloatParameterController::textFieldDidFinishEditing(textField, text);
}
void GoToParameterController::viewWillAppear() {
m_previousParameter = parameterAtIndex(0);
m_selectableTableView.reloadData();
}
void GoToParameterController::buttonAction() {
StackViewController * stack = (StackViewController *)parentResponder();
stack->pop();
stack->pop();
}
}