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91 lines
3.4 KiB
C++
91 lines
3.4 KiB
C++
#ifndef SHARED_INTERACTIVE_CURVE_VIEW_RANGE_H
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#define SHARED_INTERACTIVE_CURVE_VIEW_RANGE_H
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#include <stdint.h>
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#include "memoized_curve_view_range.h"
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#include "interactive_curve_view_range_delegate.h"
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#include <ion/display.h>
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#include <float.h>
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namespace Shared {
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class InteractiveCurveViewRange : public MemoizedCurveViewRange {
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public:
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InteractiveCurveViewRange(InteractiveCurveViewRangeDelegate * delegate = nullptr) :
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MemoizedCurveViewRange(),
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m_delegate(nullptr),
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m_zoomAuto(true),
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m_zoomNormalize(false)
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{
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if (delegate) {
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setDelegate(delegate);
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}
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}
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static constexpr float NormalYXRatio() { return NormalizedYHalfRange(1.f) / NormalizedXHalfRange(1.f); }
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bool isOrthonormal(float tolerance = 2 * FLT_EPSILON) const;
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void setDelegate(InteractiveCurveViewRangeDelegate * delegate);
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uint32_t rangeChecksum() override;
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bool zoomAuto() const { return m_zoomAuto; }
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void setZoomAuto(bool v);
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bool zoomNormalize() const { return m_zoomNormalize; }
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void setZoomNormalize(bool v);
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float roundLimit(float y, float range, bool isMin);
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// MemoizedCurveViewRange
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float xGridUnit() const override { return m_zoomNormalize ? yGridUnit() : MemoizedCurveViewRange::xGridUnit(); }
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float yGridUnit() const override;
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// CurveViewWindow
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void setXMin(float f) override;
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void setXMax(float f) override;
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void setYMin(float f) override;
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void setYMax(float f) override;
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// Window
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void zoom(float ratio, float x, float y);
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void panWithVector(float x, float y);
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virtual void normalize();
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virtual void setDefault();
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void centerAxisAround(Axis axis, float position);
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void panToMakePointVisible(float x, float y, float topMarginRatio, float rightMarginRatio, float bottomMarginRation, float leftMarginRation, float pixelWidth);
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protected:
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constexpr static float k_upperMaxFloat = 1E+8f;
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constexpr static float k_lowerMaxFloat = 9E+7f;
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constexpr static float k_maxRatioPositionRange = 1E5f;
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constexpr static float k_orthonormalTolerance = 0.2f;
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static float clipped(float x, bool isMax) { return Range1D::clipped(x, isMax, k_lowerMaxFloat, k_upperMaxFloat); }
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/* In normalized settings, we put each axis so that 1cm = 2 units. For now,
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* the screen has size 43.2mm * 57.6mm.
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* We want:
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* 2 * normalizedXHalfRange -> 57.6mm
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* 2 * 1 unit -> 10.0mm
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* So normalizedXHalfRange = 57.6mm * 1 unit / 10.0mm */
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constexpr static float NormalizedXHalfRange(float unit) { return 5.76f * unit; }
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/* In normalized settings, we put each axis so that 1cm = 2 units. For now,
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* the screen has size 43.2mm * 57.6mm.
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* We want:
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* 2 * normalizedYHalfRange -> 43.2mm * 170/240
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* 2 * 1 unit -> 10.0mm
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* So normalizedYHalfRange = 43.2mm * 170/240 * 1 unit / 10.0mm */
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constexpr static float NormalizedYHalfRange(float unit) { return 3.06f * unit; }
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InteractiveCurveViewRangeDelegate * m_delegate;
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private:
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bool m_zoomAuto;
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bool m_zoomNormalize;
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};
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static_assert(Ion::Display::WidthInTenthOfMillimeter == 576, "Use the new screen width to compute Shared::InteractiveCurveViewRange::NormalizedXHalfRange");
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static_assert(Ion::Display::HeightInTenthOfMillimeter == 432, "Use the new screen height to compute Shared::InteractiveCurveViewRange::NormalizedYHalfRange");
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typedef void (InteractiveCurveViewRange::*ParameterSetterPointer)(float);
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typedef float (InteractiveCurveViewRange::*ParameterGetterPointer)() const;
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typedef void (InteractiveCurveViewRange::*RangeMethodPointer)();
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}
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#endif
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