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2dee8f2b1f
Scenario:
double x[numberOfPoints] = {0.0, 0.975, 1.97, 2.945, 3.971, 4.887, 5.924, 6.964, 7.979, 8.974, 9.998};
double y[numberOfPoints] = {-23.784, -23.322, -28.322, -18.422, -4.813206, 7.146241, 16.631, 16.632, 9.209189, -6.050863, -19.659};
Quadratic regression, navigate on the points then go on the
regressioncurve -> there is a drawing glitch
33 lines
880 B
C++
33 lines
880 B
C++
#ifndef SHARED_ROUND_CURSOR_VIEW_H
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#define SHARED_ROUND_CURSOR_VIEW_H
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#include "cursor_view.h"
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namespace Shared {
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#define GRAPH_CURSOR_SPEEDUP 1
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class RoundCursorView : public CursorView {
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public:
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RoundCursorView(KDColor color = KDColorBlack) : m_color(color), m_underneathPixelBufferLoaded(false) {}
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void drawRect(KDContext * ctx, KDRect rect) const override;
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KDSize minimalSizeForOptimalDisplay() const override;
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void setColor(KDColor color);
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void setCursorFrame(KDRect frame) override;
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#ifdef GRAPH_CURSOR_SPEEDUP
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void resetMemoization() const { m_underneathPixelBufferLoaded = false; }
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#endif
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private:
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#ifdef GRAPH_CURSOR_SPEEDUP
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bool eraseCursorIfPossible();
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#endif
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constexpr static int k_cursorSize = 10;
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mutable KDColor m_underneathPixelBuffer[k_cursorSize*k_cursorSize];
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KDColor m_color;
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mutable bool m_underneathPixelBufferLoaded;
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};
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}
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#endif
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