Initial community commit

Src/Wasabi/bfc/draw/gradient.h

@@ -0,0 +1,67 @@
+#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