I am having some trouble with getting a bounding box around a sf::Text object. I am trying to make a Button Class that holds the coordinates of buttons. I made a vector of this button class and when a Mouse Click Event is triggered, each button in the vector is check against the coordinates of the mouse to see if that specific button was clicked.
class ButtonTracker
{
private:
sf::Shape* obj;
float xMin;
float xMax;
float yMin;
float yMax;
public:
ButtonTracker();
ButtonTracker(sf::Shape* obj);
ButtonTracker* wasClicked(const sf::Event* click);
int clickHandler();
};
ButtonTracker::ButtonTracker(sf::Shape* obj)
{
this->obj = obj;
sf::Vector2f pos = obj->getPosition();
sf::FloatRect size = obj->getGlobalBounds();
xMin = pos.x;
xMax = pos.x + obj->size.width;
yMin = pos.y;
yMax = pos.y + obj->size.height;
}
ButtonTracker* ButtonTracker::wasClicked(const sf::Event* click)
{
cout << "Mouse Coords: " << click->mouseButton.x << ", " << click->mouseButton.y <<
"\nButton Coords: " << xMin << "-" << xMax << ", " << yMin << "-" << yMax << endl;
if (click->mouseButton.x >= xMin && click->mouseButton.x <= xMax &&
click->mouseButton.y >= yMin && click->mouseButton.y <= yMax )
{
return &(*this);
}
return NULL; //no buttons were clicked
}
In my ButtonTracker constructor I called getGlobalBounds() on the sf::Shape*, which in my case is a sf::Text object. However getGlobalBounds().width always returns 0 and in some cases getGlobalBounds().height returns 0 as well. Which is incorrect because the sf::Text objects have been created already, so there width shouldn't be 0.
I printed some variables in the terminal, here's a sample output (the button coords are returned as a range):
Mouse Click Detected
Processing Left Mouse Click
Checking Button Number 0
Mouse Coords: 337, 352
Button Coords: 30-30, 529.25-529.25
Checking Button Number 1
Mouse Coords: 337, 352
Button Coords: 30-30, 571.25-601.25
Checking Button Number 2
Mouse Coords: 337, 352
Button Coords: 30-30, 613.25-643.25
Checking Button Number 3
Mouse Coords: 337, 352
Button Coords: 30-30, 655.25-685.25
Non-button click determined
As you can see the GlobalBounds returned are wrong, but sometimes the correct Y value is returned.
I also tried it with getLocalBounds() and the same error occured. I never change the origin or character size of the text.
Note: I added +30.0f to my xMax to test it and my code works. So I can't figure out why getGlobalBounds().width/height return the wrong values.
Am I doing something wrong?
