void onDrawContent(SkCanvas *canvas) override {
canvas->save();
canvas->resetMatrix(); // Force static control panel position
fControlPanel.drawContent(canvas);
canvas->restore();
SkLights::Builder builder;
for (int i = 0; i < kNumLights; i++) {
builder.add(SkLights::Light::MakeDirectional(fLightDefs[i].fColor,
SkPoint3::Make(fLightDefs[i].fDirXY.fX,
fLightDefs[i].fDirXY.fY,
fLightDefs[i].fDirZ)));
}
builder.setAmbientLightColor(SkColor3f::Make(0.4f, 0.4f, 0.4f));
fLights = builder.finish();
// Draw shapes
SkScalar xPos = kCtrlRange + 25.0f;
SkScalar yPos = fShapeBounds.height();
for (Shape shape : {
kCircle_Shape, kRect_Shape
}) {
canvas->save();
canvas->translate(xPos, yPos);
this->drawShape(shape, canvas);
canvas->restore();
xPos += 1.2f * fShapeBounds.width();
}
}
sk_sp<SkLights> SkLights::makeColorSpace(SkColorSpaceXformer* xformer) const {
SkLights::Builder builder;
for (int i = 0; i < this->numLights(); i++) {
Light light(fLights[i].type(), xform_color(fLights[i].color(), xformer),
fLights[i].fDirOrPos, fLights[i].fIntensity);
builder.add(light);
}
builder.setAmbientLightColor(xform_color(fAmbientLightColor, xformer));
return builder.finish();
}
static sk_sp<SkLights> create_lights(SkScalar angle, SkScalar blue) {
const SkVector3 dir = SkVector3::Make(SkScalarSin(angle)*SkScalarSin(SK_ScalarPI*0.25f),
SkScalarCos(angle)*SkScalarSin(SK_ScalarPI*0.25f),
SkScalarCos(SK_ScalarPI*0.25f));
SkLights::Builder builder;
builder.add(SkLights::Light::MakeDirectional(SkColor3f::Make(1.0f, 1.0f, blue), dir));
builder.setAmbientLightColor(SkColor3f::Make(0.1f, 0.1f, 0.1f));
return builder.finish();
}