Unable to set Cocos2d-x label font color

cocos2d-x C++
1 
            rect = Sprite::create();
            rect->setTextureRect(Rect(0, 0, 180, 80));
    
            rect->setPosition(Point(visibleSize.width / 2 + origin.x, visibleSize.height + 80));
            auto grad = LayerGradient::create(arr[randSayi][0], arr[randSayi][1]);
            grad->changeHeight(rect->getContentSize().height);
            grad->changeWidth(rect->getContentSize().width);
    
            label = Label::createWithTTF(arrRenk[randRenk], "fonts/font.ttf", 54);
            label->setPosition(rect->getContentSize().width / 2, rect->getContentSize().height / 2);
            label->setColor(/*(Color3B)arr[randSayi][0]*/Color3B(arr[randSayi][0]));
            grad->addChild(label);
    
            rect->setTag(i);
            rect->addChild(grad);

This is how i crete a rectangular sprite with a gradient color and a label added on top of it. My problem is that i can’t set font color properly.

 label->setColor(/*(Color3B)arr[randSayi][0]*/Color3B(arr[randSayi][0]));

arr[][] is an array of colors Color4B. I both tried casting and the uncommented out but the result is:

enter image description here

Which means color isn’t set. Can anybody identify the problem?

2

Try using Label::setTextColor(Color4B) instead of Node::setColor(Color3B)

setTextColour() is the colour the text is rendered to texture with.

setColor() is the colour that texture (like sprite) is tinted in the shader.

Hope this helps

3

Any idea on it is very appreciated :smile:

4

I tried but still the same result. Might it be about parent-children relation order or simply the z-order?

5

From the code you’ve provided it’s unlikely to be an ordering issue. Hmmm. Have you tried debugging or logging the result of arr[randSayi][0] and Color3B(arr[randSayi][0]) to console? just to make sure the translation is correct.

Debug:
Breakpoint on label->setColor(...) and inspect your array then step in and inspect the Color3B param.

Log

auto c4b = arr[randSayi][0];
auto c3b = Color3B(arr[randSayi][0]);
CCLOG("c4b color: (%d,%d,%d,%d)", c4b.r, c4b.g, c4b.b, c4b.a);
CCLOG("c3b color: (%d,%d,%d)", c3b.r, c3b.g, c3b.b);
6

As far as I can see, everything is working fine.

You set your label color to arr[randSayi][0] which is the same color as the first color of the gradient.

Picking colors from your image, I get Color3B(117, 209 234) from the label which is exactly the same color as the topmost pixels of your gradient…

So what else color should the label be?