Messages

1

Graphics / Re: Inheriting from sf::Drawable

« on: June 06, 2018, 09:51:43 pm »

Thank you so much!!! Everything works fine now! And all this trouble was caused by such a simple mistake... Guess I have a lot to learn

2

Graphics / Re: Inheriting from sf::Drawable

« on: June 05, 2018, 10:35:08 pm »

#include <SFML/Graphics.hpp>
#include <iostream>
#include <string>
using namespace std;
class Button : public sf::Drawable
{
    sf::VertexArray arr;
    sf::Text text;
    sf::IntRect location;
    virtual void draw(sf::RenderTarget& target, sf::RenderStates states) const
    {
        target.draw(arr, states);
        target.draw(text);
    }
public:
    Button(const sf::Color& c1, const sf::Color& c2 ,
           const sf::Color& c3, const sf::Color& c4,
           const sf::IntRect rect, string displayedText)
    {
        arr=sf::VertexArray(sf::Quads, 4);
        arr[0].position={rect.left + rect.width, rect.top};
        arr[1].position={rect.left, rect.top};
        arr[2].position={rect.left, rect.top + rect.height};
        arr[3].position={rect.left + rect.width, rect.top + rect.height};
        arr[0].color=c1;
        arr[1].color=c2;
        arr[2].color=c3;
        arr[3].color=c4;
        location=rect;
        text.setString(displayedText);
        sf::Font font;
        if(!font.loadFromFile("Sanchezregular.otf"))
        {
            cout << "Loading font file failed";
            system("pause");
        }
        text.setFont(font);
        text.setColor(sf::Color::Red);
        text.setCharacterSize(location.height/5);
        text.setOrigin(sf::Vector2f(text.getGlobalBounds().left+text.getGlobalBounds().width/2,
                                    text.getGlobalBounds().top+text.getGlobalBounds().height/2));

    }
    //some more functions
};
int main()
{
    sf::RenderWindow window(sf::VideoMode(1280, 720), "BUG", sf::Style::Close);

    Button button(sf::Color(210, 210, 210), sf::Color(210, 210, 210),
                  sf::Color(110, 110, 110), sf::Color(110, 110, 110),
                  {400, 200, 300, 100}, "BUTTON");



    while (window.isOpen())
    {
        window.clear(sf::Color(98, 139, 135));
        sf::Event event;
        while (window.pollEvent(event))
        {
            switch(event.type)
            {
            case sf::Event::Closed:
                window.close();
                break;
            }
        }
        window.draw(button);
        window.display();
    }
}


It's funny because when I remove the while loop which is controlled by the pollevent function (so don't handle events) everything is drawn fine except the text and then it crashes when before a white screen appeared

3

Graphics / Re: Inheriting from sf::Drawable

« on: June 04, 2018, 11:17:40 pm »

Unfortunately I am not exactly advanced and don't know what you mean by error/callstack.
And yes, I do handle events. But it doesn't freeze - it opens a white window and crashes after about 2 seconds.

4

Graphics / Inheriting from sf::Drawable

« on: June 04, 2018, 12:36:29 am »

Hi,
I created a Button class which will make it easier to make clickable buttons and I wanted it to inherit from sf::Drawable so I could use the nice looking SFML interface and just write window.draw(button). My button is a Vertex Array, and when inside the draw function (which overrides the virtual one in sf::Drawable) i want to draw only the Vertex Array everything is fine. However, when I add a second line, in which I draw a text object on top of my Vertex Array, upon starting the whole window is white and closes after a few seconds. Is it possible to fix this so I can keep inheriting from sf::Drawable? To explain it better:

sf::Text text;
sf::VertexArray arr;
virtual void draw(sf::RenderTarget& target, sf::RenderStates states) const
    {
        target.draw(arr, states);
    }   -> no error
////
virtual void draw(sf::RenderTarget& target, sf::RenderStates states) const
    {
        target.draw(arr, states);
        target.draw(text);
    }   -> error