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68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
#ifndef SEQUENCE_TERM_SUM_CONTROLLER_H
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#define SEQUENCE_TERM_SUM_CONTROLLER_H
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#include <escher.h>
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#include "graph_view.h"
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#include "curve_view_range.h"
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#include "vertical_cursor_view.h"
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#include "../../shared/curve_view_cursor.h"
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namespace Sequence {
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class TermSumController : public ViewController {
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public:
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TermSumController(Responder * parentResponder, GraphView * graphView, CurveViewRange * graphRange, Shared::CurveViewCursor * cursor);
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const char * title() override;
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View * view() override;
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void viewWillAppear() override;
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bool handleEvent(Ion::Events::Event event) override;
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bool moveCursorHorizontallyToPosition(int position);
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void setSequence(Sequence * sequence);
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private:
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constexpr static float k_cursorTopMarginRatio = 0.07f; // (cursorHeight/2)/graphViewHeight
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constexpr static float k_cursorRightMarginRatio = 0.04f; // (cursorWidth/2)/graphViewWidth
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constexpr static float k_cursorBottomMarginRatio = 0.28f; // (cursorHeight/2+bannerHeigh)/graphViewHeight
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constexpr static float k_cursorLeftMarginRatio = 0.04f; // (cursorWidth/2)/graphViewWidth
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class LegendView : public View {
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public:
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LegendView();
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~LegendView();
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LegendView(const LegendView& other) = delete;
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LegendView(LegendView&& other) = delete;
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LegendView& operator=(const LegendView& other) = delete;
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LegendView& operator=(LegendView&& other) = delete;
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void drawRect(KDContext * ctx, KDRect rect) const override;
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void setLegendMessage(I18n::Message message);
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void setSumSubscript(float start);
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void setSumSuperscript(float start, float end);
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void setSumResult(const char * sequenceName, double result);
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KDSize minimalSizeForOptimalDisplay() const override;
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private:
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constexpr static KDCoordinate k_legendHeight = 35;
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void layoutSubviews() override;
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int numberOfSubviews() const override;
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View * subviewAtIndex(int index) override;
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ExpressionView m_sum;
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Poincare::ExpressionLayout * m_sumLayout;
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MessageTextView m_legend;
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};
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GraphView * m_graphView;
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LegendView m_legendView;
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CurveViewRange * m_graphRange;
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Sequence * m_sequence;
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Shared::CurveViewCursor * m_cursor;
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VerticalCursorView m_cursorView;
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/* The user can move the cursor to an abscissa n by typing the right digits.
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* To be able to go to abscissa represented by more than one digit, we record
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* the value typed by the used up to now (if he typed '1' and '4',
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* m_bufferCursorPosition = 14). */
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int m_bufferCursorPosition;
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int m_step;
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int m_startSum;
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int m_endSum;
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};
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}
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#endif
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