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114 lines
4.6 KiB
C++
114 lines
4.6 KiB
C++
#ifndef SHARED_SCROLLABLE_MULTIPLE_EXPRESSIONS_VIEW_H
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#define SHARED_SCROLLABLE_MULTIPLE_EXPRESSIONS_VIEW_H
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#include <escher.h>
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#include <apps/i18n.h>
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namespace Shared {
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class AbstractScrollableMultipleExpressionsView : public ScrollableView, public ScrollViewDataSource {
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public:
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constexpr static KDCoordinate k_horizontalMargin = Metric::CommonLargeMargin;
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enum class SubviewPosition : uint8_t {
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Left = 0,
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Center = 1,
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Right = 2
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};
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static KDCoordinate StandardApproximateViewAndMarginsSize() {
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return ContentCell::StandardApproximateViewAndMarginsSize();
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}
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AbstractScrollableMultipleExpressionsView(Responder * parentResponder, View * contentCell);
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::EvenOddCell * evenOddCell() {
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return contentCell();
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}
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void setLayouts(Poincare::Layout leftLayout, Poincare::Layout centerlayout, Poincare::Layout rightLayout);
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void setEqualMessage(I18n::Message equalSignMessage);
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SubviewPosition selectedSubviewPosition() {
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return contentCell()->selectedSubviewPosition();
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}
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void setSelectedSubviewPosition(SubviewPosition subviewPosition) {
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contentCell()->setSelectedSubviewPosition(subviewPosition);
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}
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bool displayCenter() const { return constContentCell()->displayCenter(); }
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void setDisplayCenter(bool display);
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void setDisplayableCenter(bool displayable) { contentCell()->setDisplayableCenter(displayable); }
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void reloadScroll();
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bool handleEvent(Ion::Events::Event event) override;
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Poincare::Layout layout() const { return constContentCell()->layout(); }
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KDCoordinate baseline() const { return constContentCell()->baseline(); }
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protected:
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class ContentCell : public ::EvenOddCell {
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public:
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static KDCoordinate StandardApproximateViewAndMarginsSize();
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ContentCell();
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KDColor backgroundColor() const override;
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void setHighlighted(bool highlight) override;
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void setEven(bool even) override;
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void reloadTextColor();
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KDSize minimalSizeForOptimalDisplay() const override;
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KDSize minimalSizeForOptimalDisplayFullSize() const;
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virtual ExpressionView * leftExpressionView() const { return nullptr; }
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ExpressionView * rightExpressionView() {
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return &m_rightExpressionView;
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}
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ExpressionView * centeredExpressionView() {
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return &m_centeredExpressionView;
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}
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MessageTextView * approximateSign() {
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return &m_approximateSign;
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}
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SubviewPosition selectedSubviewPosition() const {
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return m_selectedSubviewPosition;
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}
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void setSelectedSubviewPosition(SubviewPosition subviewPosition);
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bool displayCenter() const { return m_displayCenter && !m_centeredExpressionView.layout().isUninitialized(); }
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bool displayableCenter() const { return m_displayableCenter && !m_centeredExpressionView.layout().isUninitialized(); }
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void setDisplayCenter(bool display);
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void setDisplayableCenter(bool displayable) {m_displayableCenter = displayable;}
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void layoutSubviews(bool force = false) override;
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int numberOfSubviews() const override;
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virtual Poincare::Layout layout() const override;
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KDCoordinate baseline(KDCoordinate * leftBaseline = nullptr, KDCoordinate * centerBaseline = nullptr, KDCoordinate * rightBaseline = nullptr) const;
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void subviewFrames(KDRect * leftFrame, KDRect * centerFrame, KDRect * approximateSignFrame, KDRect * rightFrame);
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private:
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constexpr static const KDFont * k_font = KDFont::LargeFont;
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const static I18n::Message k_defaultApproximateMessage = I18n::Message::AlmostEqual;
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KDSize privateMinimalSizeForOptimalDisplay(bool forceFullDisplay) const;
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View * subviewAtIndex(int index) override;
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ExpressionView m_rightExpressionView;
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MessageTextView m_approximateSign;
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ExpressionView m_centeredExpressionView;
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SubviewPosition m_selectedSubviewPosition;
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bool m_displayCenter;
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bool m_displayableCenter;
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};
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virtual ContentCell * contentCell() = 0;
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virtual const ContentCell * constContentCell() const = 0;
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};
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class ScrollableTwoExpressionsView : public AbstractScrollableMultipleExpressionsView {
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public:
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ScrollableTwoExpressionsView(Responder * parentResponder) : AbstractScrollableMultipleExpressionsView(parentResponder, &m_contentCell) {
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setMargins(
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Metric::CommonSmallMargin,
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Metric::CommonLargeMargin,
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Metric::CommonSmallMargin,
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Metric::CommonLargeMargin
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);
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}
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KDSize minimalSizeForOptimalDisplayFullSize() const {
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return constContentCell()->minimalSizeForOptimalDisplayFullSize();
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}
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private:
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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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}
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#endif
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