mirror of
https://github.com/UpsilonNumworks/Upsilon.git
synced 2026-01-19 00:37:25 +01:00
288 lines
10 KiB
C++
288 lines
10 KiB
C++
#include "term_sum_controller.h"
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#include "../../shared/text_field_delegate.h"
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#include "../../../poincare/src/layout/baseline_relative_layout.h"
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#include "../../../poincare/src/layout/condensed_sum_layout.h"
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#include "../../../poincare/src/layout/string_layout.h"
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#include "../../../poincare/src/layout/horizontal_layout.h"
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#include <assert.h>
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#include <math.h>
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#include <stdlib.h>
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using namespace Shared;
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using namespace Poincare;
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namespace Sequence {
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TermSumController::TermSumController(Responder * parentResponder, GraphView * graphView, CurveViewRange * graphRange, CurveViewCursor * cursor) :
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ViewController(parentResponder),
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m_contentView(ContentView(graphView)),
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m_graphRange(graphRange),
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m_sequence(nullptr),
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m_cursor(cursor),
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m_cursorView(VerticalCursorView()),
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m_bufferCursorPosition(0),
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m_step(0),
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m_startSum(-1),
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m_endSum(-1)
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{
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}
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const char * TermSumController::title() {
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return I18n::translate(I18n::Message::TermSum);
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}
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View * TermSumController::view() {
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return &m_contentView;
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}
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void TermSumController::viewWillAppear() {
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m_contentView.graphView()->setVerticalCursor(true);
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m_contentView.graphView()->setCursorView(&m_cursorView);
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m_contentView.graphView()->setBannerView(nullptr);
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m_contentView.graphView()->setOkView(nullptr);
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m_contentView.graphView()->selectMainView(true);
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m_contentView.graphView()->setHighlightColor(false);
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m_contentView.graphView()->setHighlight(-1.0f,-1.0f);
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m_contentView.graphView()->reload();
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m_contentView.layoutSubviews();
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m_bufferCursorPosition = 0;
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m_startSum = -1;
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m_endSum = -1;
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m_step = 0;
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m_contentView.legendView()->setLegendMessage(I18n::Message::SelectFirstTerm);
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m_contentView.legendView()->setSumSubscript(m_cursor->x());
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}
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bool TermSumController::handleEvent(Ion::Events::Event event) {
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if (m_step > 1 && event != Ion::Events::OK && event != Ion::Events::Back) {
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return false;
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}
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if (event == Ion::Events::Left) {
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if (m_step > 0 && m_startSum >= m_cursor->x()) {
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return false;
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}
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if (moveCursorHorizontallyToPosition(roundf(m_cursor->x()-1.0f))) {
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m_contentView.graphView()->reload();
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return true;
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}
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return false;
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}
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if (event == Ion::Events::Right) {
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if (moveCursorHorizontallyToPosition(roundf(m_cursor->x()+1.0f))) {
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m_contentView.graphView()->reload();
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return true;
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}
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return false;
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}
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if (event.hasText() && event.text()[0] >= '0' && event.text()[0] <= '9') {
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m_bufferCursorPosition = 10*m_bufferCursorPosition + event.text()[0]-'0';
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if (m_step > 0 && m_bufferCursorPosition < m_startSum) {
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return false;
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}
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if (moveCursorHorizontallyToPosition(m_bufferCursorPosition)) {
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m_contentView.graphView()->reload();
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return true;
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}
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return false;
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}
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if (event == Ion::Events::OK) {
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if (m_step == 2) {
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StackViewController * stack = (StackViewController *)parentResponder();
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stack->pop();
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return true;
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}
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if (m_step == 0) {
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m_step++;
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m_bufferCursorPosition = 0;
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m_startSum = m_cursor->x();
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m_contentView.legendView()->setSumSuperscript(m_startSum, m_cursor->x());
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m_contentView.legendView()->setLegendMessage(I18n::Message::SelectLastTerm);
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return true;
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}
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m_step++;
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m_endSum = m_cursor->x();
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TextFieldDelegateApp * myApp = (TextFieldDelegateApp *)app();
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float sum = m_sequence->sumOfTermsBetweenAbscissa(m_startSum, m_endSum, myApp->localContext());
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m_contentView.legendView()->setSumResult(m_sequence->name(), sum);
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m_contentView.legendView()->setLegendMessage(I18n::Message::Default);
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m_contentView.graphView()->setHighlightColor(true);
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m_contentView.graphView()->selectMainView(false);
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return true;
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}
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if (event == Ion::Events::Back && m_step > 0) {
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m_step--;
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m_bufferCursorPosition = 0;
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if (m_step == 1) {
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m_contentView.legendView()->setLegendMessage(I18n::Message::SelectLastTerm);
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m_contentView.graphView()->setHighlightColor(false);
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m_contentView.graphView()->selectMainView(true);
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m_contentView.legendView()->setSumSuperscript(m_startSum, m_cursor->x());
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}
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if (m_step == 0) {
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m_contentView.graphView()->setHighlight(-1,-1);
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moveCursorHorizontallyToPosition(m_startSum);
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m_contentView.legendView()->setLegendMessage(I18n::Message::SelectFirstTerm);
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m_contentView.legendView()->setSumSubscript(m_startSum);
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m_contentView.graphView()->reload();
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}
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return true;
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}
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return false;
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}
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bool TermSumController::moveCursorHorizontallyToPosition(int position) {
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if (position < 0) {
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return false;
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}
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float x = position;
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TextFieldDelegateApp * myApp = (TextFieldDelegateApp *)app();
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if (m_sequence == nullptr) {
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return false;
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}
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float y = m_sequence->evaluateAtAbscissa(x, myApp->localContext());
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m_cursor->moveTo(x, y);
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if (m_step == 0) {
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m_contentView.legendView()->setSumSubscript(m_cursor->x());
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}
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if (m_step == 1) {
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m_contentView.graphView()->setHighlight(m_startSum, m_cursor->x());
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m_contentView.legendView()->setSumSuperscript(m_startSum, m_cursor->x());
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}
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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 TermSumController::setSequence(Sequence * sequence) {
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m_contentView.graphView()->selectSequence(sequence);
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m_sequence = sequence;
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}
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/* Content View */
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TermSumController::ContentView::ContentView(GraphView * graphView) :
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m_graphView(graphView)
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{
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}
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void TermSumController::ContentView::layoutSubviews() {
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m_graphView->setFrame(bounds());
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m_legendView.setFrame(KDRect(0, bounds().height() - k_legendHeight, bounds().width(), k_legendHeight));
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}
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GraphView * TermSumController::ContentView::graphView() {
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return m_graphView;
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}
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TermSumController::ContentView::LegendView * TermSumController::ContentView::legendView() {
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return &m_legendView;
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}
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int TermSumController::ContentView::numberOfSubviews() const {
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return 2;
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}
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View * TermSumController::ContentView::subviewAtIndex(int index) {
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assert(index >= 0 && index < 2);
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if (index == 0) {
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return m_graphView;
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}
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return &m_legendView;
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}
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/* Legend View */
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TermSumController::ContentView::LegendView::LegendView() :
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m_sum(ExpressionView(0.0f, 0.5f, KDColorBlack, Palette::GreyBright)),
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m_sumLayout(nullptr),
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m_legend(MessageTextView(KDText::FontSize::Small, I18n::Message::Default, 0.0f, 0.5f, KDColorBlack, Palette::GreyBright))
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{
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}
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TermSumController::ContentView::LegendView::~LegendView() {
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if (m_sumLayout != nullptr) {
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delete m_sumLayout;
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m_sumLayout = nullptr;
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}
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}
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void TermSumController::ContentView::LegendView::drawRect(KDContext * ctx, KDRect rect) const {
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ctx->fillRect(KDRect(0, bounds().height() - k_legendHeight, bounds().width(), k_legendHeight), Palette::GreyBright);
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}
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void TermSumController::ContentView::LegendView::setLegendMessage(I18n::Message message) {
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m_legend.setMessage(message);
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layoutSubviews();
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}
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void TermSumController::ContentView::LegendView::setSumSubscript(float start) {
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if (m_sumLayout) {
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delete m_sumLayout;
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m_sumLayout = nullptr;
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}
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const char sigma[2] = {Ion::Charset::CapitalSigma, 0};
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char buffer[Complex::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits)];
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Complex::convertFloatToText(start, buffer, Complex::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits), Constant::LargeNumberOfSignificantDigits, Expression::FloatDisplayMode::Decimal);
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m_sumLayout = new CondensedSumLayout(new StringLayout(sigma, 1), new StringLayout(buffer, strlen(buffer), KDText::FontSize::Small), nullptr);
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m_sum.setExpression(m_sumLayout);
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m_sum.setAlignment(0.0f, 0.5f);
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layoutSubviews();
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}
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void TermSumController::ContentView::LegendView::setSumSuperscript(float start, float end) {
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if (m_sumLayout) {
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delete m_sumLayout;
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m_sumLayout = nullptr;
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}
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const char sigma[2] = {Ion::Charset::CapitalSigma, 0};
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char bufferStart[Complex::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits)];
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Complex::convertFloatToText(start, bufferStart, Complex::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits), Constant::LargeNumberOfSignificantDigits, Expression::FloatDisplayMode::Decimal);
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char bufferEnd[Complex::bufferSizeForFloatsWithPrecision(1)];
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Complex::convertFloatToText(end, bufferEnd, Complex::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits), Constant::LargeNumberOfSignificantDigits, Expression::FloatDisplayMode::Decimal);
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m_sumLayout = new CondensedSumLayout(new StringLayout(sigma, 1), new StringLayout(bufferStart, strlen(bufferStart), KDText::FontSize::Small), new StringLayout(bufferEnd, strlen(bufferEnd), KDText::FontSize::Small));
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m_sum.setExpression(m_sumLayout);
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layoutSubviews();
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}
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void TermSumController::ContentView::LegendView::setSumResult(const char * sequenceName, float result) {
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ExpressionLayout * childrenLayouts[3];
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char buffer[2+Complex::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits)];
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strlcpy(buffer, "= ", 3);
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Complex::convertFloatToText(result, buffer+2, Complex::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits), Constant::LargeNumberOfSignificantDigits);
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childrenLayouts[2] = new StringLayout(buffer, strlen(buffer), KDText::FontSize::Small);
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childrenLayouts[1] = new BaselineRelativeLayout(new StringLayout(sequenceName, 1, KDText::FontSize::Small), new StringLayout("n", 1, KDText::FontSize::Small), BaselineRelativeLayout::Type::Subscript);
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childrenLayouts[0] = m_sumLayout;
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m_sumLayout = new HorizontalLayout(childrenLayouts, 3);
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m_sum.setExpression(m_sumLayout);
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m_sum.setAlignment(0.5f, 0.5f);
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layoutSubviews();
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}
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int TermSumController::ContentView::LegendView::numberOfSubviews() const {
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return 2;
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}
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View * TermSumController::ContentView::LegendView::subviewAtIndex(int index) {
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assert(index >= 0 && index < 2);
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if (index == 0) {
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return &m_sum;
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}
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return &m_legend;
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}
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void TermSumController::ContentView::LegendView::layoutSubviews() {
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KDCoordinate width = bounds().width();
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KDCoordinate heigth = bounds().height();
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KDSize legendSize = m_legend.minimalSizeForOptimalDisplay();
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if (legendSize.width() > 0) {
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m_sum.setFrame(KDRect(0, 0, width-legendSize.width(), heigth));
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m_legend.setFrame(KDRect(width-legendSize.width(), 0, legendSize.width(), heigth));
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return;
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}
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m_sum.setFrame(bounds());
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m_legend.setFrame(KDRectZero);
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}
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}
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