Messages

31

General / Re: SFML widget in Qt

« on: March 17, 2014, 07:49:50 am »

Hi

I'm the creator of the post that you refer to.

It's my impression that you're using Windows instead of Mac OS. From the error message, I think that the create method (RenderWindow::create) requires a pointer to a windows handler (HWND *) and does not accept a explicit casting to (void *). Unfortunately, I haven't tried this on Windows, so for now it's the only hint I can provide.

Hope some other friends shed some more light on this issue.

FM

Thanks
Nice tutorial!

Waiting for more help

------------------------------
I found solution
Change line 33 of QSFMLCanvas.cpp to

RenderWindow::create(reinterpret_cast<sf::WindowHandle>(winId()));

32

General / [Solved]SFML widget in Qt

« on: March 16, 2014, 09:03:23 am »

I've follow the tutorial below.
http://becomingindiedev.blogspot.com/2013/10/qt-5-and-sfml-20-integration.html

but It gives many errors. In the picture below


I have no idea, How can I do? So, Please suggest me.

Thanks,

Sorry for bad English

but it give many error.

So, Please suggest how to adjust this code

33

Graphics / Re: View problem

« on: March 16, 2014, 04:23:57 am »

Problem #1: http://sfml-dev.org/tutorials/2.1/graphics-view.php#showing-more-when-the-window-is-resized

I've copy tutorial code to my code (see my upper post).

When I resize window and zoom , my circle will be stretch.
I can't mix "Showing more when the window is resized" with my zoom code.

Problem #2: You need to explain better about what you want exactly. 

Sorry for bad explanation


when I started program
(0,0) coordinate will be on upper left of circle
(like the left side of picture)

when I zoom out
I want (0,0) coordinate to be on upper left of circle(red coordinate) not upper left of window(blue coordinate)
 
I've read Coordinates conversions in tutorial page
but I don't understand how to use it.

Thanks

34

Graphics / Re: View problem

« on: March 16, 2014, 04:01:05 am »

Please help

35

Graphics / Re: AW: View problem

« on: March 14, 2014, 04:30:09 pm »

Don't draw them if the view zoom factor reaches a certain point. How? Well I don't know your code.

OK, I will try it by myself first. If I can't do it. May I ask you again? 

and Others problem (many problem )
Please guide me

Problem 1

#ifdef SFML_STATIC
#pragma comment(lib, "glew.lib")
#pragma comment(lib, "freetype.lib")
#pragma comment(lib, "jpeg.lib")
#pragma comment(lib, "opengl32.lib")
#pragma comment(lib, "winmm.lib")
#pragma comment(lib, "gdi32.lib")  
#endif // SFML_STATIC


#include <SFML/Graphics.hpp>

int posx, posy;
sf::View view1;

int main()
{
        sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
        sf::View view1(sf::FloatRect(0.f, 0.f, window.getSize().x, window.getSize().y));

        sf::CircleShape shape(100.f);
        shape.setFillColor(sf::Color::Green);

        while (window.isOpen())
        {
                sf::Event event;
                while (window.pollEvent(event))
                {
                        if (event.type == sf::Event::Closed)
                                window.close();
                        if (event.type == sf::Event::MouseMoved)
                        {

                                posx = event.mouseMove.x - window.getSize().x / 4;
                                posy = event.mouseMove.y - window.getSize().y / 4;
                        }

                        if (event.type == sf::Event::MouseWheelMoved)
                        {

                                if (event.mouseWheel.delta >= 1)
                                {
                                        view1.zoom(0.9f);
                                        view1.setCenter(posx, posy);
                                        window.setView(view1);
                                }
                                if (event.mouseWheel.delta <= -1)
                                {
                                        view1.zoom(2.f);
                                        view1.setCenter(posx, posy);
                                        window.setView(view1);
                                }


                        }
                        if (event.type == sf::Event::Resized)
                        {
                                sf::View view1(sf::FloatRect(0, 0, event.size.width, event.size.height));
                                sf::FloatRect visibleArea(0, 0, event.size.width, event.size.height);
                                window.setView(sf::View(visibleArea));
                                window.setView(view1);
                        }
                }

                window.clear();
                window.draw(shape);
                window.display();
        }

        return 0;
}

From this code
When I resize window and zoom , my circle will be stretch.

--------------------------------------------------------------------------------------
Problem 2



In the picture(Right side)
when I zoom in or out,
I want (0,0) coordinate to be in the red text not in the blue text

I've try Coordinates conversions in tutorial but doesn't work.


-------------------------------------------------------------------------------------
Sorry for bad English

Thank you very much

 

36

Graphics / Re: View problem

« on: March 14, 2014, 04:45:07 am »

No, I mean Red line 

How to hide it when I zoom out
and
display it when I zoom in

37

Graphics / Re: View problem

« on: March 13, 2014, 12:58:08 pm »

Please Help

38

Graphics / Re: Zoom and View problem

« on: March 12, 2014, 03:44:12 pm »

I think the documentation is pretty clear on what the factor should be to zoom in or out.

And a MouseMoved event inside a MouseWheelMoved event? It will never happen.

Thanks

Solved about zoom problem
It's not zoom properly. Sometimes It move the setCenter.
But It not the main problem that I care.
I've change to this

            if (event.type == sf::Event::MouseMoved)
                        {
                                posx = event.mouseMove.x;
                                posy = event.mouseMove.y;
                        }

                        if (event.type == sf::Event::MouseWheelMoved)
                        {
                               
                                if (event.mouseWheel.delta == 1)
                                {
                                        view1.zoom(0.9f);
                                }
                                if (event.mouseWheel.delta == -1)
                                {
                                        view1.zoom(2.f);
                                }
                                view1.setCenter(posx, posy);
                               
                        }

39

Graphics / [Unsolved see lastest rep.] View problem

« on: March 12, 2014, 05:05:00 am »

The picture below is when I zoom in.


The picture below is when I zoom out


When I zoom out I don't program display pink lines
display pink link only when I zoom in

How can I do it?

Thanks

Sorry for bad English

40

Graphics / Re: Click and change fill color help!

« on: March 11, 2014, 02:32:38 pm »

I don't see different between if-loop and while-loop
Please tell me How different?

http://lmgtfy.com/?q=if+vs+while Really not that hard....

How can I create rectangle every frame? I have no idea

You don't want to create a rectangle shape every frame...

Oh, My bad
How stupid am I
Thanks!

41

Graphics / Re: Click and change fill color help!

« on: March 11, 2014, 01:58:42 pm »

• Please reread the tutorial about events, handling events must be done in the event loop

while (window.pollEvent(event))
{
    // check the type of the event...
    switch (event.type)
    {
        // window closed
        case sf::Event::Closed:
            window.close();
            break;

        // key pressed
        case sf::Event::KeyPressed:
            ...
            break;

        // we don't process other types of events
        default:
            break;
    }
}

I don't see different between if-loop and while-loop
Please tell me How different?

• Lets see, if you create a new rectangle shape each frame how do you think it is going to stay red?

How can I create rectangle every frame? I have no idea
I've put this event between window.clear(); and  window.display();
but nothing change

Sorry for ask stupid question...

Thanks

42

Graphics / Re: Click and change fill color help!

« on: March 11, 2014, 01:46:29 pm »

      int main()
{

       
        cout << "enter width: ";
        cin >> x;
        cout << endl;
        cout << "enter height: ";
        cin >> y;

        sf::RenderWindow window(sf::VideoMode(x * 4, y * 4), "Window");


        while (window.isOpen())
        {
                sf::Event event;
                while (window.pollEvent(event))
                {
                        if (event.type == sf::Event::Closed)
                                window.close();
                }

                window.clear();

                sf::IntRect r1(100, 100, 100, 100);

                sf::RectangleShape rectangle;
                rectangle.setSize(sf::Vector2f(100, 100));
                rectangle.setOutlineColor(sf::Color::Red);
                rectangle.setFillColor(sf::Color::Blue);
                rectangle.setOutlineThickness(1);
                rectangle.setPosition(100, 100);
                window.draw(rectangle);

       
                if (event.type == sf::Event::MouseButtonPressed)
                {
                        if (event.mouseButton.button == sf::Mouse::Left)
                        {
                                mx = event.mouseButton.x;
                                my = event.mouseButton.y;
                                bool b1 = r1.contains(mx, my);
                                if (b1 == true)
                                {


                                        rectangle.setFillColor(sf::Color::Red);
                                        window.draw(rectangle);
                                        cout << mx << my << endl;



                                }
                        }

                }
               
                window.display();

               
               
        }

        system("pause");
}
 

I've try to write my code
Result is my rectangle change to red only I pressed my mouse
How an I fix this?

43

Graphics / Re: Click and change fill color help!

« on: March 11, 2014, 07:56:03 am »

Not really...

You either use event handling (see the tutorial) or use real time input (see the tutorial), you should not mix both.

To check whether a point is in a rect, you can simply use the SFML rect.contains(point) function (see documentation).

Thanks!

44

Graphics / Click and change fill color help!

« on: March 10, 2014, 10:10:56 am »

int x;
int y;

int main()
{
        while
                {
                        if (sf::Mouse::isButtonPressed(sf::Mouse::Left))
                                {
                                        x = sf::Event::MouseButtonEvent::x;
                                        y = sf::Event::MouseButtonEvent::y;
                                }
                         //check that What rectangle which (x,y) is inside

                        (Rectangle that I clicked name).setFillColor(sf::Color::Green);
                }

}

This is my approximately code.
Is that Correct?
and Please tell me How can I check that What rectangle which (x,y) is inside

Thanks
Sorry for bad English
   

45

General / Re: My vertex line is blinking

« on: March 10, 2014, 07:18:34 am »

I suspect it's because you are calling window.draw(outlinex, 2, sf::Lines); before window.clear(). Move your for loop to in between window.clear() and window.display() and see if that fixes your issue.

Thanks! Problem solved

Couple of things to note here:

• As The Terminator mentioned: sf::RenderWindow::clear should always be called before sf::RenderWindow::draw.
• Your array outlines is created inside the for-loop. When the for loop ends, the scope where your vertex was created ends and the object gets destroyed.
• You draw your vertices only once, not every frame. Read the big red box on this tutorial. It mentions how you should do it and also refers to double-buffering which is why the lines are blinking.

Please do read the tutorials as they are very useful and clear.

I'm clearly understand.
Thanks!