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https://github.com/UpsilonNumworks/Upsilon.git
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93 lines
3.5 KiB
C++
93 lines
3.5 KiB
C++
#include "calculation_graph_controller.h"
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#include "../app.h"
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using namespace Shared;
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using namespace Poincare;
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namespace Graph {
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CalculationGraphController::CalculationGraphController(Responder * parentResponder, GraphView * graphView, BannerView * bannerView, Shared::InteractiveCurveViewRange * curveViewRange, CurveViewCursor * cursor, I18n::Message defaultMessage) :
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ViewController(parentResponder),
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m_graphView(graphView),
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m_bannerView(bannerView),
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m_graphRange(curveViewRange),
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m_cursor(cursor),
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m_record(),
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m_defaultBannerView(KDFont::SmallFont, defaultMessage, 0.5f, 0.5f, KDColorBlack, Palette::GreyMiddle),
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m_isActive(false)
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{
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}
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View * CalculationGraphController::view() {
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return m_graphView;
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}
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void CalculationGraphController::viewWillAppear() {
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assert(m_record.isNull());
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Expression::Coordinate2D pointOfInterest = computeNewPointOfInteresetFromAbscissa(m_graphRange->xMin(), 1);
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if (std::isnan(pointOfInterest.abscissa)) {
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m_isActive = false;
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m_graphView->setCursorView(nullptr);
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m_graphView->setBannerView(&m_defaultBannerView);
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} else {
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m_isActive = true;
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m_cursor->moveTo(pointOfInterest.abscissa, pointOfInterest.value);
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m_graphRange->panToMakePointVisible(m_cursor->x(), m_cursor->y(), k_cursorTopMarginRatio, SimpleInteractiveCurveViewController::k_cursorRightMarginRatio, k_cursorBottomMarginRatio, SimpleInteractiveCurveViewController::k_cursorLeftMarginRatio);
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reloadBannerView();
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}
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m_graphView->setOkView(nullptr);
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m_graphView->reload();
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}
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bool CalculationGraphController::handleEvent(Ion::Events::Event event) {
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if (event == Ion::Events::EXE || event == Ion::Events::OK) {
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StackViewController * stack = static_cast<StackViewController *>(parentResponder());
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stack->pop();
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return true;
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}
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if (m_isActive && (event == Ion::Events::Right || event == Ion::Events::Left)) {
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int direction = event == Ion::Events::Right ? 1 : -1;
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if (moveCursor(direction)) {
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reloadBannerView();
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m_graphView->reload();
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return true;
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}
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}
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return false;
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}
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void CalculationGraphController::setRecord(Ion::Storage::Record record) {
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m_graphView->selectRecord(record);
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m_record = record;
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}
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void CalculationGraphController::reloadBannerView() {
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m_bannerView->setNumberOfSubviews(2);
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reloadBannerViewForCursorOnFunction(m_cursor, m_record, functionStore(), StorageCartesianFunctionStore::Symbol());
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}
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bool CalculationGraphController::moveCursor(int direction) {
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Expression::Coordinate2D newPointOfInterest = computeNewPointOfInteresetFromAbscissa(m_cursor->x(), direction);
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if (std::isnan(newPointOfInterest.abscissa)) {
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return false;
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}
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m_cursor->moveTo(newPointOfInterest.abscissa, newPointOfInterest.value);
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m_graphRange->panToMakePointVisible(m_cursor->x(), m_cursor->y(), k_cursorTopMarginRatio, SimpleInteractiveCurveViewController::k_cursorRightMarginRatio, k_cursorBottomMarginRatio, SimpleInteractiveCurveViewController::k_cursorLeftMarginRatio);
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return true;
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}
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Expression::Coordinate2D CalculationGraphController::computeNewPointOfInteresetFromAbscissa(double start, int direction) {
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App * myApp = static_cast<App *>(app());
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double step = m_graphRange->xGridUnit()/10.0;
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step = direction < 0 ? -step : step;
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double max = direction > 0 ? m_graphRange->xMax() : m_graphRange->xMin();
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return computeNewPointOfInterest(start, step, max, myApp->localContext());
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}
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StorageCartesianFunctionStore * CalculationGraphController::functionStore() const {
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App * a = static_cast<App *>(app());
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return a->functionStore();
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}
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}
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