winamp/Src/Wasabi/bfc/draw/gradient.h
2024-09-24 14:54:57 +02:00

68 lines
1.5 KiB
C++

#ifndef _GRADIENT_H
#define _GRADIENT_H
#include <bfc/wasabi_std.h>
#include <bfc/string/StringW.h>
#include <tataki/color/filteredcolor.h>
class GradientPoint
{
public:
GradientPoint(float p, ARGB32 c, const wchar_t *group=L"") : pos(p), dist(0), color(c, group), x(0), y(0) { }
float pos;
double dist;
FilteredColor color;
float x, y;
static int compareItem(GradientPoint *p1, GradientPoint* p2) {
int r = CMP3(p1->pos, p2->pos);
if (r == 0) return CMP3(p1, p2);
else return r;
}
};
class Gradient
{
public:
Gradient();
virtual ~Gradient();
void setX1(float x1);
void setY1(float y1);
void setX2(float x2);
void setY2(float y2);
void clearPoints();
void addPoint(float pos, ARGB32 color);
// "pos=color;pos=color" "0.25=34,45,111"
void setPoints(const wchar_t *str);
void setReverseColors(int c);
void setAntialias(int c);
void setMode(const wchar_t *mode);
void setGammaGroup(const wchar_t *group);
// note: this will automatically premultiply against alpha
void renderGradient(ARGB32 *bits, int width, int height, int pitch=0);
protected:
virtual void onParamChange() { }
ARGB32 getPixelCirc(double x, double y);
private:
float gradient_x1, gradient_y1, gradient_x2, gradient_y2;
class GradientList : public PtrListQuickSorted<GradientPoint, GradientPoint> { };
GradientList list;
void renderGrad(ARGB32 *bits, int len, int *positions);
int reverse_colors;
int antialias;
StringW mode, gammagroup;
};
#endif