Displaying text in center of screen

[BeautiCode]

To try and display text in the center of the screen I do

text.setPosition(screen_width/2.0f,screen_height/2.0f);
 

But it displays the text somewhere close to the bottom left of the screen. Anyone know why? I looked on google,  I didn't understand much because mostly people were using getLocalBounds() and setOrigin(), what's the difference between that and setPosition();?

[Laurent]

setPosition will set the top-left corner of the text to the given position (by default). That's why people use getLocalBounds() + setOrigin(), to set the text's origin to its center instead of its top-left corner.

[Jesper Juhl]

An alternative, if you don't want to change the origin, is to get the width of the screen, subtract the width of the texts bounding box, divide the result by 2 and you are left with the x coordinate for a call to setPosition with the default origin. Similar calculation to get the y coordinate.

[BeautiCode]

So how exactly would I use getLocalBounds() and setOrigin? Example please?

[Ixrec]

They're in the tutorials.

http://www.sfml-dev.org/tutorials/2.1/graphics-sprite.php#ok-can-i-have-my-sprite-now
http://www.sfml-dev.org/tutorials/2.1/graphics-transform.php#bounding-boxes

[BeautiCode]

I'd really appreciate quick thorough examples tbh, instead of just commenting with a link to the tutorials page on the official website, or just giving a quick and less elaborative answer, please.
I do slightly understand but it'd be better with an example.

[zsbzsb]

Something like this for the X coordinate. And if this isn't enough information.... 

(X position) = (screen width) / 2 - (text width) / 2;

[Hapax]

(X position) = (screen width) / 2 - (text width) / 2;

I always prefer:
[X position] = ( [screen width] - [text width] ) / 2; 

BeautiCode, I'm not sure what you're not understanding from the tutorials; the links to them went to the parts that explained setOrigin() and getLocalBounds(). As said above, set the origin to half of the size, which you can get from the local bounds (feel free to click on the getLocalBounds' type if you need to know more about that type), and then just set the position to the centre of the window.

(click to show/hide)

In case it is setOrigin() that you don't understand.

[BeautiCode]

When I use setOrigin() my text doesn't get displayed at all, but when I use setPosition() it does.

[Hapax]

You need to use both 
setOrigin moves the origin's location. setPosition moves the sprites location based on its origin.

set the origin to half of the size...and then just set the position to the centre of the window.

[BeautiCode]

    text.setPosition(W_WIDTH/2.0f,W_HEIGHT/2.0f);
    text.setOrigin(text.getLocalBounds().width/2.0f,text.getLocalBounds().height/2.0f);
 

What am I doing wrong?

[Doodlemeat]

You mind posting the whole code? Try to use globalBounds instead of local.

[Laurent]

You mind posting the whole code?

A complete and minimal one, if possible.

Try to use globalBounds instead of local.

Nop, never do that. The origin must be given in local coordinates.

[Stauricus]

    text.setPosition(W_WIDTH/2.0f,W_HEIGHT/2.0f);
    text.setOrigin(text.getLocalBounds().width/2.0f,text.getLocalBounds().height/2.0f);
 

What am I doing wrong?

what are the values of W_WIDTH and W_HEIGHT, and what is the window size?

[BeautiCode]

The window height is the value of W_HEIGHT and the window width is the value of W_WIDTH.

    sf::Text text;
    text.setFont(default_font);
    text.setStyle(sf::Text::Bold | sf::Text::Underlined);
    text.setColor(sf::Color::White);
    text.setCharacterSize(textsize);
    text.setPosition(W_WIDTH/2.0f,W_HEIGHT/2.0f);
    text.setOrigin(text.getLocalBounds().left/2.0f,text.getLocalBounds().top/2.0f);
    text.setString("test"); //set version
    win->draw(text);
    win->display();
 

All the other code is in different classes and stuff and this one is not an open source project, so I didn't want to show much. But I think this is enough.