lib_ui/ui/paint/blob.h

66 lines
1.4 KiB
C++

// This file is part of Desktop App Toolkit,
// a set of libraries for developing nice desktop applications.
//
// For license and copyright information please follow this link:
// https://github.com/desktop-app/legal/blob/master/LEGAL
//
#pragma once
class Painter;
namespace Ui::Paint {
class BlobBezier final {
public:
struct Radiuses {
float min = 0.;
float max = 0.;
inline bool operator==(const Radiuses &other) const {
return (min == other.min) && (max == other.max);
}
inline bool operator!=(const Radiuses &other) const {
return !(min == other.min) && (max == other.max);
}
};
BlobBezier(int n, float minScale, float minSpeed = 0, float maxSpeed = 0);
void paint(Painter &p, const QBrush &brush);
void update(float level, float speedScale);
void generateBlob();
void setMinRadius(float value);
void setMaxRadius(float value);
void setRadiuses(Radiuses values);
Radiuses radiuses() const;
private:
struct Segment {
float radius = 0.;
float angle = 0.;
float radiusNext = 0.;
float angleNext = 0.;
float progress = 0.;
float speed = 0.;
};
void generateBlob(float &radius, float &angle, int i);
const int _segmentsCount;
const float64 _segmentLength;
const float _minScale;
const float _minSpeed;
const float _maxSpeed;
const QPen _pen;
const float _segmentAngle;
std::vector<Segment> _segments;
float64 _scale = 0;
Radiuses _radiuses;
};
} // namespace Ui::Paint