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https://github.com/UpsilonNumworks/Upsilon.git
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95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
#include "graph_controller.h"
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#include <cmath>
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using namespace Shared;
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using namespace Poincare;
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namespace Sequence {
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GraphController::GraphController(Responder * parentResponder, SequenceStore * sequenceStore, CurveViewRange * graphRange, CurveViewCursor * cursor, int * indexFunctionSelectedByCursor, uint32_t * modelVersion, uint32_t * rangeVersion, Expression::AngleUnit * angleUnitVersion, ButtonRowController * header) :
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FunctionGraphController(parentResponder, header, graphRange, &m_view, cursor, indexFunctionSelectedByCursor, modelVersion, rangeVersion, angleUnitVersion),
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m_bannerView(),
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m_view(sequenceStore, graphRange, m_cursor, &m_bannerView, &m_cursorView),
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m_graphRange(graphRange),
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m_curveParameterController(this, graphRange, m_cursor),
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m_termSumController(this, &m_view, graphRange, m_cursor),
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m_sequenceStore(sequenceStore)
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{
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m_graphRange->setDelegate(this);
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}
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I18n::Message GraphController::emptyMessage() {
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if (m_sequenceStore->numberOfDefinedModels() == 0) {
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return I18n::Message::NoSequence;
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}
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return I18n::Message::NoActivatedSequence;
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}
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TermSumController * GraphController::termSumController() {
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return &m_termSumController;
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}
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BannerView * GraphController::bannerView() {
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return &m_bannerView;
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}
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bool GraphController::handleEnter() {
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m_termSumController.setFunction(m_sequenceStore->activeFunctionAtIndex(indexFunctionSelectedByCursor()));
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return FunctionGraphController::handleEnter();
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}
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bool GraphController::moveCursorHorizontally(int direction) {
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double xCursorPosition = std::round(m_cursor->x());
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if (direction < 0 && xCursorPosition <= 0) {
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return false;
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}
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/* The cursor moves by step of at minimum 1. If the windowRange is to large
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* compared to the resolution, the cursor takes bigger round step to cross
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* the window in approximatively resolution steps. */
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double step = std::ceil((interactiveCurveViewRange()->xMax()-interactiveCurveViewRange()->xMin())/m_view.resolution());
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step = step < 1.0 ? 1.0 : step;
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double x = direction > 0 ? xCursorPosition + step:
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xCursorPosition - step;
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if (x < 0.0) {
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return false;
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}
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Sequence * s = m_sequenceStore->activeFunctionAtIndex(indexFunctionSelectedByCursor());
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TextFieldDelegateApp * myApp = (TextFieldDelegateApp *)app();
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double y = s->evaluateAtAbscissa(x, myApp->localContext());
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m_cursor->moveTo(x, y);
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m_graphRange->panToMakePointVisible(x, y, k_cursorTopMarginRatio, k_cursorRightMarginRatio, k_cursorBottomMarginRatio, k_cursorLeftMarginRatio);
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return true;
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}
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void GraphController::initCursorParameters() {
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double x = std::round((interactiveCurveViewRange()->xMin()+interactiveCurveViewRange()->xMax())/2.0);
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selectFunctionWithCursor(0);
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TextFieldDelegateApp * myApp = (TextFieldDelegateApp *)app();
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int functionIndex = 0;
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double y = 0;
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do {
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Sequence * firstFunction = m_sequenceStore->activeFunctionAtIndex(functionIndex++);
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y = firstFunction->evaluateAtAbscissa(x, myApp->localContext());
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} while (std::isnan(y) && functionIndex < m_sequenceStore->numberOfActiveFunctions());
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m_cursor->moveTo(x, y);
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m_graphRange->panToMakePointVisible(x, y, k_cursorTopMarginRatio, k_cursorRightMarginRatio, k_cursorBottomMarginRatio, k_cursorLeftMarginRatio);
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}
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CurveViewRange * GraphController::interactiveCurveViewRange() {
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return m_graphRange;
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}
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SequenceStore * GraphController::functionStore() const {
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return m_sequenceStore;
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}
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GraphView * GraphController::functionGraphView() {
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return &m_view;
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}
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CurveParameterController * GraphController::curveParameterController() {
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return &m_curveParameterController;
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}
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}
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