borderless fullscreen window support for x11

move disable resize x11 code from context_gl to os_x11

1 files changed, 33 insertions, 0 deletions

diff --git a/platform/x11/os_x11.cpp b/platform/x11/os_x11.cpp
index 62af30279..eab9be7f9 100644
--- a/platform/x11/os_x11.cpp
+++ b/platform/x11/os_x11.cpp
@@ -168,6 +168,39 @@ void OS_X11::initialize(const VideoMode& p_desired,int p_video_driver,int p_audi
 		visual_server =memnew(VisualServerWrapMT(visual_server,get_render_thread_mode()==RENDER_SEPARATE_THREAD));
 	}
 
+	// borderless fullscreen window mode
+	if (current_videomode.fullscreen) {
+		Hints hints;
+		Atom property;
+		hints.flags = 2;
+		hints.decorations = 0;
+		property = XInternAtom(x11_display, "_MOTIF_WM_HINTS", True);
+		XChangeProperty(x11_display, x11_window, property, property, 32, PropModeReplace, (unsigned char *)&hints, 5);
+		XMapRaised(x11_display, x11_window);
+		// get the window root, then the res for the root
+		XWindowAttributes xwa;
+		XGetWindowAttributes(x11_display,x11_window,&xwa);
+		XGetWindowAttributes(x11_display,xwa.root,&xwa);
+		XMoveResizeWindow(x11_display, x11_window ,0 ,0 , xwa.width, xwa.height);
+	}
+
+	// disable resizeable window
+	if (!current_videomode.resizable) {
+		XSizeHints *xsh;
+		xsh = XAllocSizeHints();
+		xsh->flags = PMinSize | PMaxSize;
+		XWindowAttributes xwa;
+		XGetWindowAttributes(x11_display,x11_window,&xwa);
+		if (current_videomode.fullscreen) {
+			XGetWindowAttributes(x11_display,xwa.root,&xwa);
+		}
+		xsh->min_width = xwa.width; 
+		xsh->max_width = xwa.width;
+		xsh->min_height = xwa.height;
+		xsh->max_height = xwa.height;
+		XSetWMNormalHints(x11_display, x11_window, xsh);
+	}
+
 	AudioDriverManagerSW::get_driver(p_audio_driver)->set_singleton();
 
 	if (AudioDriverManagerSW::get_driver(p_audio_driver)->init()!=OK) {