Messages

1

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 11:43:00 am »

Yes... but you need to find the code that doesn't produce the expected results. It doesn't help to know that SetPosition and GetPosition work, I already knew that

...

Explain how this works:

Code: [Select]


void SFMLRenderer::DrawText(std::string& text, Point& position) {
    Gum::Base::Size size = MeasureText(text);
    Gum::Base::Rect rect = Gum::Base::Rect(position.x, position.y, 0, 0);
   
    sf::Text sfText = sf::Text(text, sf::Font::GetDefaultFont(), 10);
    sfText.SetColor(m_Color);
    sfText.SetPosition(sf::Vector2f(rect.Left, rect.Top));
    m_pTarget->Draw(sfText);
}


Edit:

I'm starting to think my compiler is messing things up because, this draws perfectly centered text.

Code: [Select]


    Gum::Base::Size size = GetRenderer()->MeasureText(GetCaption());
   
    Gum::Base::Point position;
    position.x = GetGlobalPos().x;
    position.y = GetGlobalPos().y;
   
    position.y += (GetSize().w - size.w) / 2;
    position.x += (GetSize().h - size.h) / 2;
   
    if(m_Pressed) {
        position.x++;
        position.y++;
    }    


2

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 10:37:12 am »

Here's the problem: sfText.GetPosition() != sf::Vector2f((int)position.x, (int)position.y) always returns false. I'm also using the same position for the rectangle.

:?:
Why is it a problem that the position of the text is equal to what you assigned it?

Because it's drawing in a different position.

3

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 09:59:06 am »

So what's the point of showing me a working piece of code?

At least now you have a code that works, that you can compare to yours and see what's different.

Here's the problem: sfText.GetPosition() != sf::Vector2f((int)position.x, (int)position.y) always returns false.  I'm also using the same position for the rectangle.

4

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 09:18:55 am »

Sadly no, but I don't understand how my code is producing the error (if the rectangle is drawing in the correct position).

Edit:

Here's my project that I'm working on (it has the error).

https://github.com/mtwilliams/World-of-Mana

5

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 09:10:32 am »

This is quite odd, we are both getting the same problem. Yet when I try to produce the error with minimal code it doesn't show up.  Compiler error maybe? It might have to do with the way I'm drawing text: I'm creating my sf::Text inside a loop (which is called through multiple functions).

Here's the minimal code:

Code: [Select]


#include <string>
#include <SFML/Window.hpp>
#include <SFML/Graphics.hpp>

int main() {
    sf::RenderWindow Window(sf::VideoMode(800, 600), "SFML");
   
    sf::Event Event;
    while(Window.IsOpened()) {
        while(Window.GetEvent(Event)) {
            if(Event.Type == sf::Event::Closed) {
                Window.Close();
                break;
            }
        }
       
        Window.Clear();
       
        sf::Shape rTest = sf::Shape::Rectangle(10, 235, 32, 32, sf::Color(255, 255, 255, 255));
        sf::Text tTest = sf::Text("My First Button", sf::Font::GetDefaultFont(), 10);
        tTest.SetColor(sf::Color(172, 172, 172, 255));
        tTest.SetPosition(sf::Vector2f(10, 235));

        Window.Draw(rTest);
        Window.Draw(tTest);
       
        Window.Display();
    }
   
    return EXIT_SUCCESS;
}


Here is what I'm doing to draw text and debug, etc.

Code: [Select]


void SFMLRenderer::DrawRectangle(Rect& rect) {
    sf::Shape sfRect = sf::Shape::Rectangle(rect.Left, rect.Top, rect.Width, rect.Height, m_Color);
    m_pTarget->Draw(sfRect);
}

void SFMLRenderer::DrawText(std::string& text, Point& position) {
    Gum::Base::Size size = MeasureText(text);
    sf::Text sfText = sf::Text(text, sf::Font::GetDefaultFont(), 10);
    sfText.SetPosition(sf::Vector2f((int)position.x, (int)position.y));

    DrawRectangle(Gum::Base::Rect(position.x, position.y, size.w, size.h));
    m_pTarget->Draw(sfText);
}


Edit I've added this in my DrawText:

Code: [Select]


if(sfText.GetPosition() != sf::Vector2f((int)position.x, (int)position.y)) {
        printf("!=\n");
}


Nothing in the console.  This is really weird.

6

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 06:25:01 am »

Wait for Laurent?

7

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 06:19:23 am »

A single character from a font.  I've found something intriguing: It seems like the text is rendered at 0; I can't find any references to the current position of the text.

Edit:

It seems that everything is translated with the matrix (makes sense, SFML uses OpenGL).

Edit:

There is no derived GetMatrix so I don't know.

8

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 06:08:04 am »

I saw no obvious errors in a run through.  However, I've got suspicions of Glyphs though.

9

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 06:00:30 am »

What version of SFML are you using? Maybe a new revision changed something. I take that you're using 1.6, I'm using 2.0 and it has the same problem.

10

Graphics / calss not drawing a sprite properly

« on: December 21, 2010, 05:55:06 am »

Are you sure the image is being loaded?

Try this.

Code: [Select]


class Cursor {
public:
Cursor() {
m_Sprite = sf::Sprite(m_Image);
}

Cursor(std::string& path) {
if(!m_Image.LoadFromFile(path)) {
// Exit or do whatever
}

m_Sprite = sf::Sprite(m_Image);
}

virtual ~Cursor() { }

virtual void Draw(sf::Window& Window) {
Window.Draw(m_Sprite);
}

virtual void Update(sf::Window& Window) {
m_Position.x = Window.GetInput().GetMouseX();
m_Position.y = Window.GetInput().GetMouseY();
m_Pressed = Window.GetInput().IsMouseButtonDown(sf::Mouse::Left);

m_Sprite.SetPosition(m_Position);
}

virtual sf::Vector2f GetCursorPosition() { return m_Position; }
virtual float GetCursorX() { m_Position.x }
virtual float GetCursorY() { m_Position.y }
protected:
sf::Image m_Image;
sf::Sprite m_Sprite;
sf::Vector2f m_Position;
bool m_Pressed;
};

class MyCursor : public Cursor {
public:
MyCursor() {
Cursor::Cursor("cursor.png");
}
};


Edit:

Call it like this:

Code: [Select]


int main(int argc, char** argv) {
// Create video mode, window, etc.
MyCursor myCursor = MyCursor();

// Inside the loop
myCursor.Update(myWindow);
myCursor.Draw(myWindow);
}


11

Graphics / [Solved] Text Coords and Shape Coords

« on: December 21, 2010, 05:40:51 am »

Ah, it seems that you and me have the same problem: My thread.

12

Graphics / sf::Text positioning is off?

« on: December 20, 2010, 11:58:17 pm »

I'm having problems with SFML 2.0's sf::Text class.  It seems that the text position is off. It seems to be a problem with the sf::Text class because the rectangle (where the text should be) draws fine.  The positioning error only shows up when my position (x, y) are not a 1:1 ratio.

Code: [Select]


// Inside my gui component
GetRenderer()->DrawText(GetCaption(), Gum::Base::Point(GetGlobalPos().x, GetGlobalPos().y));

// My renderer
void SFMLRenderer::DrawText(std::string& text, Point& position) {
    Gum::Base::Size size = MeasureText(text);
    sf::Text sfText = sf::Text(text, m_Font, 10);
    sfText.SetPosition(sf::Vector2f((int)position.x, (int)position.y));

    DrawRectangle(Gum::Base::Rect(position.x, position.y, size.w, size.h));
    m_pTarget->Draw(sfText);
}