public X11CursorFactory(IntPtr display)
{
_display = display;
_nullCursor = GetNullCursor(display);
_cursors = Enum.GetValues(typeof(CursorFontShape)).Cast <CursorFontShape>()
.ToDictionary(id => id, id => XLib.XCreateFontCursor(_display, id));
}
private WindowTransparencyLevel UpdateAtomsAndGetTransparency()
{
if (_requestedLevel >= WindowTransparencyLevel.Blur)
{
if (!_blurAtomsAreSet)
{
IntPtr value = IntPtr.Zero;
XLib.XChangeProperty(_x11.Display, _window, _x11.Atoms._KDE_NET_WM_BLUR_BEHIND_REGION,
_x11.Atoms.XA_CARDINAL, 32, PropertyMode.Replace, ref value, 1);
_blurAtomsAreSet = true;
}
}
else
{
if (_blurAtomsAreSet)
{
XLib.XDeleteProperty(_x11.Display, _window, _x11.Atoms._KDE_NET_WM_BLUR_BEHIND_REGION);
_blurAtomsAreSet = false;
}
}
if (!_globals.IsCompositionEnabled)
{
return(WindowTransparencyLevel.None);
}
if (_requestedLevel >= WindowTransparencyLevel.Blur && CanBlur)
{
return(WindowTransparencyLevel.Blur);
}
return(WindowTransparencyLevel.Transparent);
}
public XImageCursor(IntPtr display, IBitmapImpl bitmap, PixelPoint hotSpot)
{
var size = Marshal.SizeOf <XcursorImage>() +
(bitmap.PixelSize.Width * bitmap.PixelSize.Height * 4);
var runtimePlatform = AvaloniaLocator.Current.GetService <IRuntimePlatform>() ??
throw new InvalidOperationException("Unable to locate IRuntimePlatform");
var platformRenderInterface = AvaloniaLocator.Current.GetService <IPlatformRenderInterface>() ??
throw new InvalidOperationException("Unable to locate IPlatformRenderInterface");
_pixelSize = bitmap.PixelSize;
_blob = runtimePlatform.AllocBlob(size);
var image = (XcursorImage *)_blob.Address;
image->version = 1;
image->size = Marshal.SizeOf <XcursorImage>();
image->width = bitmap.PixelSize.Width;
image->height = bitmap.PixelSize.Height;
image->xhot = hotSpot.X;
image->yhot = hotSpot.Y;
image->pixels = (IntPtr)(image + 1);
using (var renderTarget = platformRenderInterface.CreateRenderTarget(new[] { this }))
using (var ctx = renderTarget.CreateDrawingContext(null))
{
var r = new Rect(_pixelSize.ToSize(1));
ctx.DrawBitmap(RefCountable.CreateUnownedNotClonable(bitmap), 1, r, r);
}
Handle = XLib.XcursorImageLoadCursor(display, _blob.Address);
}
public X11CursorFactory(IntPtr display)
{
_display = display;
_nullCursor = GetNullCursor(display);
_cursors = GetAllCursorShapes()
.ToDictionary(id => id, id => XLib.XCreateFontCursor(_display, id));
}
private static IntPtr GetNullCursor(IntPtr display)
{
XColor color = new XColor();
IntPtr window = XLib.XRootWindow(display, 0);
IntPtr pixmap = XLib.XCreateBitmapFromData(display, window, NullCursorData, 1, 1);
return(XLib.XCreatePixmapCursor(display, pixmap, pixmap, ref color, ref color, 0, 0));
}
public string GetAtomName(IntPtr atom)
{
if (_atomsToNames.TryGetValue(atom, out var rv))
{
return(rv);
}
var name = XLib.GetAtomName(_display, atom);
if (name == null)
{
return(null);
}
_atomsToNames[atom] = name;
_namesToAtoms[name] = atom;
return(name);
}
public X11PlatformThreading(AvaloniaX11Platform platform)
{
_platform = platform;
_display = platform.Display;
_eventHandlers = platform.Windows;
_mainThread = Thread.CurrentThread;
var fd = XLib.XConnectionNumber(_display);
var ev = new epoll_event()
{
events = EPOLLIN,
data = { u32 = (int)EventCodes.X11 }
};
_epoll = epoll_create1(0);
if (_epoll == -1)
{
throw new X11Exception("epoll_create1 failed");
}
if (epoll_ctl(_epoll, EPOLL_CTL_ADD, fd, ref ev) == -1)
{
throw new X11Exception("Unable to attach X11 connection handle to epoll");
}
var fds = stackalloc int[2];
pipe2(fds, O_NONBLOCK);
_sigread = fds[0];
_sigwrite = fds[1];
ev = new epoll_event
{
events = EPOLLIN,
data = { u32 = (int)EventCodes.Signal }
};
if (epoll_ctl(_epoll, EPOLL_CTL_ADD, _sigread, ref ev) == -1)
{
throw new X11Exception("Unable to attach signal pipe to epoll");
}
}
public static void Init()
{
XLib.XSetErrorHandler(s_errorHandlerDelegate);
}
public override void Dispose()
{
XLib.XcursorImageDestroy(Handle);
_blob.Dispose();
}