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df74c2c551
computed when the calculation is added to the store and don't change afterwards. Otherwise, if their heights change when scrolling (due to a modification of the display output type - ExactOnly, ApproximateOnly...), it generates crashes.
81 lines
3.4 KiB
C++
81 lines
3.4 KiB
C++
#ifndef CALCULATION_SCROLLABLE_THREE_EXPRESSIONS_CELL_H
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#define CALCULATION_SCROLLABLE_THREE_EXPRESSIONS_CELL_H
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#include <escher.h>
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#include "../../shared/scrollable_multiple_expressions_view.h"
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#include "../calculation.h"
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#include "expression_with_equal_sign_view.h"
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namespace Calculation {
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/* TODO There is factorizable code between this and Calculation::HistoryViewCell
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* (at least setCalculation). */
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class ScrollableThreeExpressionsView : public Shared::AbstractScrollableMultipleExpressionsView {
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public:
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static constexpr KDCoordinate k_margin = Metric::CommonSmallMargin;
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ScrollableThreeExpressionsView(Responder * parentResponder) : Shared::AbstractScrollableMultipleExpressionsView(parentResponder, &m_contentCell), m_contentCell() {
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setMargins(k_margin, k_margin, k_margin, k_margin); // Left Right margins are already added by TableCell
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setBackgroundColor(KDColorWhite);
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}
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void resetMemoization();
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void setCalculation(Calculation * calculation, bool canChangeDisplayOutput);
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void subviewFrames(KDRect * leftFrame, KDRect * centerFrame, KDRect * approximateSignFrame, KDRect * rightFrame) {
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return m_contentCell.subviewFrames(leftFrame, centerFrame, approximateSignFrame, rightFrame);
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}
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private:
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class ContentCell : public Shared::AbstractScrollableMultipleExpressionsView::ContentCell {
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public:
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ContentCell() : m_leftExpressionView() {}
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KDColor backgroundColor() const override { return KDColorWhite; }
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void setEven(bool even) override { return; }
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ExpressionView * leftExpressionView() const override { return const_cast<ExpressionWithEqualSignView *>(&m_leftExpressionView); }
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private:
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ExpressionWithEqualSignView m_leftExpressionView;
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};
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ContentCell * contentCell() override { return &m_contentCell; };
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const ContentCell * constContentCell() const override { return &m_contentCell; };
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ContentCell m_contentCell;
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};
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class ScrollableThreeExpressionsCell : public TableCell, public Responder {
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public:
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static KDCoordinate Height(Calculation * calculation);
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ScrollableThreeExpressionsCell() :
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Responder(nullptr),
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m_view(this) {}
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// Cell
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Poincare::Layout layout() const override { return m_view.layout(); }
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// Responder cell
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Responder * responder() override {
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return this;
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}
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void didBecomeFirstResponder() override;
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// Table cell
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View * labelView() const override { return (View *)&m_view; }
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void setHighlighted(bool highlight) override { m_view.evenOddCell()->setHighlighted(highlight); }
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void resetMemoization() { m_view.resetMemoization(); }
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void setCalculation(Calculation * calculation, bool canChangeDisplayOutput = false);
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void setDisplayCenter(bool display);
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ScrollableThreeExpressionsView::SubviewPosition selectedSubviewPosition() { return m_view.selectedSubviewPosition(); }
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void setSelectedSubviewPosition(ScrollableThreeExpressionsView::SubviewPosition subviewPosition) { m_view.setSelectedSubviewPosition(subviewPosition); }
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void reinitSelection();
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void subviewFrames(KDRect * leftFrame, KDRect * centerFrame, KDRect * approximateSignFrame, KDRect * rightFrame) {
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return m_view.subviewFrames(leftFrame, centerFrame, approximateSignFrame, rightFrame);
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}
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private:
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// Remove label margin added by TableCell because they're already handled by ScrollableThreeExpressionsView
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KDCoordinate labelMargin() const override { return 0; }
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ScrollableThreeExpressionsView m_view;
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};
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}
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#endif
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