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