Messages

1

Window / Re: How to get clientrect position or the rect size of titlebar?

« on: December 30, 2015, 05:11:19 pm »

You can call an OS-specific function on your window with window.getSystemHandle().

Hi Laurent, It works when using Win32 API on Window. But when porting my project to linux, I find it may be impossible to get the client rect of the window under linux/X11.

Because the Window.getSystemHandle() function calls sfWindow_getSystemHandle in CSFML.

public virtual IntPtr SystemHandle
{
    get {return sfWindow_getSystemHandle(CPointer);}
}
 

https://github.com/SFML/SFML.Net/blob/master/src/Window/Window.cs#L325

And sfWindow_getSystemHandle returns a sfWindowHandle.

sfWindowHandle sfWindow_getSystemHandle(const sfWindow* window)
{
    CSFML_CHECK_RETURN(window, 0);

    return (sfWindowHandle)window->This.getSystemHandle();
}
 

https://github.com/SFML/CSFML/blob/3e767dec4f812116f29edbbf58803f5e40833a4a/src/SFML/Window/Window.cpp#L326
https://github.com/SFML/SFML/blob/2d1fab374f3d7e9765fe1e83b23dfb5b7f80f012/src/SFML/Window/Window.cpp#L374
https://github.com/SFML/CSFML/blob/3e767dec4f812116f29edbbf58803f5e40833a4a/include/SFML/Window/WindowHandle.h#L47

Which refers to a xcb_window_t.
https://github.com/SFML/SFML/blob/2d1fab374f3d7e9765fe1e83b23dfb5b7f80f012/src/SFML/Window/Unix/WindowImplX11.cpp#L585
https://github.com/SFML/SFML/blob/2d1fab374f3d7e9765fe1e83b23dfb5b7f80f012/src/SFML/Window/Unix/WindowImplX11.cpp#L388


But I can't get the client rect when only a xcb_window_t is provided under linux/X11. The X Display is need to retrive the client rect info.

If the X Display is provided, I can use XGetGeometry to get the client area info.

Anyway, I cannot make it when only xcb_window_t is available.

I'm not familiar with linux/X11, Xlib and XCB and was just beginning to dig into these problem. Yet not a native English speaker. Ask me if any can not be understood.

PS.
I have looked into the Window.CPointer in SFML.NET, but it is just a opaque struct used internally. Am I right?
https://github.com/SFML/CSFML/blob/3e767dec4f812116f29edbbf58803f5e40833a4a/include/SFML/Window/Types.h#L30

2

DotNet / Here is a demo to create a dragable borderless window with SFML.NET.

« on: December 06, 2015, 05:33:03 am »

https://gist.github.com/zwcloud/0c0e9f52d8010e1d5164

using System;
using SFML.System;
using SFML.Window;

namespace DragableWindow
{
    class DragableWindow : Window
    {
        private Vector2i grabbedOffset;
        private bool grabbedWindow;

        private void WindowOnClosed(object sender, EventArgs eventArgs)
        {
            Window window = (Window)sender;
            window.Close();
        }

        private void OnMouseButtonPressed(object sender, MouseButtonEventArgs e)
        {
            Window window = (Window)sender;
            if (e.Button == Mouse.Button.Left)
            {
                grabbedOffset = window.Position - Mouse.GetPosition();
                grabbedWindow = true;
            }
        }

        private void OnMouseMoved(object sender, MouseMoveEventArgs e)
        {
            Window window = (Window)sender;
            if (grabbedWindow)
            {
                var position = Mouse.GetPosition();
                var newPosition = position + grabbedOffset;
                if (window.Position != newPosition)
                {
                    window.Position = newPosition;
                    System.Diagnostics.Debug.WriteLine("offset: {0}, position: {1}", grabbedOffset, window.Position);
                }
            }
        }

        private void OnMouseButtonReleased(object sender, MouseButtonEventArgs e)
        {
            if (e.Button == Mouse.Button.Left)
            {
                grabbedWindow = false;
            }
        }

        public DragableWindow(VideoMode mode, string title, Styles style) : base(mode, title, style)
        {
            this.Closed += WindowOnClosed;
            this.MouseButtonPressed += OnMouseButtonPressed;
            this.MouseMoved += OnMouseMoved;
            this.MouseButtonReleased += OnMouseButtonReleased;
        }
    }


    static class Program
    {
        [STAThread]
        public static void Main()
        {
            Window window = new DragableWindow(new VideoMode(512, 512), "SFML Dragable Window", Styles.None);

            // Start game loop
            while (window.IsOpen)
            {
                // Process events
                window.DispatchEvents();

                // Display the rendered frame on screen
                window.Display();
            }
        }

    }
}
 

3

Window / Re: How to get clientrect position or the rect size of titlebar?

« on: November 02, 2015, 02:13:01 am »

You can call an OS-specific function on your window with window.getSystemHandle().

OK, I get it.

Because it shows cut pieces of texts, it looks just like garbage

Yes, exactly.

4

Window / How to get clientrect position or the rect size of titlebar?

« on: November 01, 2015, 02:46:00 pm »

I want to show a borderless window located precisely at a certain position of another window which has a titlebar. But without the ClientRect Position or the rect size, I think, there is no way to do that.

By the way, The search system of SFML forum is awful. @Laurent I think you'd better place a google search box instead.

Using SFML.Net 2.2.