DegenerateTwoPtRadialsSlide.cpp File Reference

#include "include/core/SkCanvas.h"
#include "include/core/SkFont.h"
#include "include/core/SkString.h"
#include "include/effects/SkGradientShader.h"
#include "tools/fonts/FontToolUtils.h"
#include "tools/viewer/Slide.h"

Go to the source code of this file.

Classes
class	DegenerateTwoPtRadialsSlide

Functions
static void	draw_gradient2 (SkCanvas *canvas, const SkRect &rect, SkScalar delta)

Function Documentation

draw_gradient2()

static void draw_gradient2 ( SkCanvas *  canvas, const SkRect &  rect, SkScalar  delta  )

static

Definition at line 15 of file DegenerateTwoPtRadialsSlide.cpp.

                                                                                 {
    SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorMAGENTA };
    SkScalar pos[] = { 0, 0.25f, 0.75f, SK_Scalar1 };
 
    SkScalar l = rect.fLeft;
    SkScalar t = rect.fTop;
    SkScalar w = rect.width();
    SkScalar h = rect.height();
 
    SkASSERT(0 == SkScalarMod(w, SK_Scalar1 * 5));
 
    SkPoint c0 = { l + 2 * w / 5 + delta, t + h / 2 };
    SkPoint c1 = { l + 3 * w / 5, t + h / 2 };
    SkScalar r0 = w / 5;
    SkScalar r1 = 2 * w / 5;
    SkPaint paint;
    paint.setShader(SkGradientShader::MakeTwoPointConical(c0, r0, c1, r1, colors,
                                                          pos, std::size(pos),
                                                          SkTileMode::kClamp));
    canvas->drawRect(rect, paint);
}