1 files changed, 179 insertions, 0 deletions
diff --git a/src/util/clientGUIUtils_X11.cpp b/src/util/clientGUIUtils_X11.cpp
new file mode 100755
index 0000000..4b5afe0
--- /dev/null
+++ b/src/util/clientGUIUtils_X11.cpp
@@ -0,0 +1,179 @@
+#include "clientGUIUtils.h"
+#include <X11/Xlib.h>
+#include <X11/cursorfont.h>
+
+
+struct BlankScreen_Sysdep {
+
+    Display *dpy;
+    Window win;
+    XEvent ev;
+    int scr;
+
+    bool locked;
+
+
+    QString lockMsg;
+    int blackColor, whiteColor;
+    int offX, offY;
+};
+
+BlankScreen::BlankScreen()
+{
+    _sysdep = new BlankScreen_Sysdep;
+    _sysdep->dpy = XOpenDisplay(NULL);
+    _sysdep->scr = DefaultScreen(_sysdep->dpy);
+    assert(_sysdep->dpy);
+    _sysdep->blackColor = BlackPixel(_sysdep->dpy, DefaultScreen(_sysdep->dpy));
+    _sysdep->whiteColor = WhitePixel(_sysdep->dpy, DefaultScreen(_sysdep->dpy));
+//    win = XCreateSimpleWindow(_sysdep->dpy, DefaultRootWindow(_sysdep->dpy), 0, 0, 200, 100, 0, blackColor, whiteColor);
+    _sysdep->win = XCreateSimpleWindow(_sysdep->dpy, RootWindow(_sysdep->dpy, _sysdep->scr), 10, 10, 200, 200, 1, WhitePixel(_sysdep->dpy, _sysdep->scr), BlackPixel(_sysdep->dpy, _sysdep->scr));
+
+    XSelectInput(_sysdep->dpy, _sysdep->win, ExposureMask | KeyPressMask);
+    _sysdep->locked = false;
+    _sysdep->offX = _sysdep->offY = 0;
+}
+
+BlankScreen::~BlankScreen()
+{
+    delete _sysdep;
+}
+
+void BlankScreen::draw(bool force)
+{
+    if (_sysdep->locked)// no need to draw if we're not showing the window
+    {
+        XWindowAttributes xwa;
+        XGetWindowAttributes(_sysdep->dpy, DefaultRootWindow(_sysdep->dpy), &xwa);
+        int hx = (xwa.width)>>2, hy = (xwa.height)>>2;
+
+        if (XCheckTypedEvent(_sysdep->dpy, Expose, &_sysdep->ev) || force )
+        {
+            hx += _sysdep->offX;
+            hy += _sysdep->offY;
+
+            GC gcc = XCreateGC(_sysdep->dpy, _sysdep->win, 0, NULL);
+            XSetForeground(_sysdep->dpy, gcc, _sysdep->whiteColor);
+//            XClearArea(_sysdep->dpy, _sysdep->win, 0, 0, xwa.width, xwa.height, false);
+            if (_sysdep->lockMsg.size() > 0)
+            {
+                char *msg = const_cast<char*>(_sysdep->lockMsg.toUtf8().data());
+                XDrawString(_sysdep->dpy, _sysdep->win, gcc/*DefaultGC(dpy, scr)*/, hx, hy, msg, strlen(msg));
+            }
+            else
+            {
+            }
+        }
+    }
+}
+
+bool BlankScreen::lock()
+{
+#define lock_test
+
+    if (_sysdep->locked)
+        return _sysdep->locked;
+
+    // We want to get MapNotify events
+    XSelectInput(_sysdep->dpy, _sysdep->win, StructureNotifyMask);
+
+    // "Map" the window (that is, make it appear on the screen)
+    XMapWindow(_sysdep->dpy, _sysdep->win);
+
+    // Create a "Graphics Context"
+    //GC gc = XCreateGC(dpy, win, 0, NULL);
+
+    XEvent xev;
+    Atom wm_state = XInternAtom(_sysdep->dpy, "_NET_WM_STATE", False);
+    Atom fullscreen = XInternAtom(_sysdep->dpy, "_NET_WM_STATE_FULLSCREEN", False);
+    memset(&xev, 0, sizeof(xev));
+    xev.type = ClientMessage;
+    xev.xclient.window = _sysdep->win;
+    xev.xclient.message_type = wm_state;
+    xev.xclient.format = 32;
+    xev.xclient.data.l[0] = 1;
+    xev.xclient.data.l[1] = fullscreen;
+    xev.xclient.data.l[2] = 0;
+
+    XSendEvent(_sysdep->dpy, DefaultRootWindow(_sysdep->dpy), False,
+               SubstructureNotifyMask, &xev);
+
+
+
+
+    // Wait for the MapNotify event
+    for (;;)
+    {
+        XEvent e;
+        XNextEvent(_sysdep->dpy, &e);
+        if (e.type == MapNotify)
+            break;
+    }
+    //Flush it!
+    //XFlush(_sysdep->dpy);
+
+#ifndef lock_test
+    // load the locked cursor, so people dont think they can click anything
+    // TODO: Use some kind of invisible cursor instead of the wait-cursor
+    Cursor _sysdep->locked_cur = XCreateFontCursor(_sysdep->dpy, XC_watch);
+    XDefineCursor(_sysdep->dpy, DefaultRootWindow(_sysdep->dpy),_sysdep->locked_cur);
+#endif
+
+    // grabbing of keyboard and mouse and hide the cursor
+    XGrabKeyboard(_sysdep->dpy, DefaultRootWindow(_sysdep->dpy), false, GrabModeAsync, GrabModeAsync, CurrentTime);
+    XGrabPointer(_sysdep->dpy, DefaultRootWindow(_sysdep->dpy), false, 0, GrabModeAsync, GrabModeAsync, None, NULL, CurrentTime);
+
+    if (!_sysdep->locked)
+        ConsoleLog writeLine(QString("Locked"));
+
+    // see header for more information on this switch
+    return _sysdep->locked = true;
+}
+
+bool BlankScreen::lock_inputs()
+{
+    // grabbing of keyboard and mouse and hide the cursor
+    XGrabKeyboard(_sysdep->dpy, DefaultRootWindow(_sysdep->dpy), false, GrabModeAsync, GrabModeAsync, CurrentTime);
+    XGrabPointer(_sysdep->dpy, DefaultRootWindow(_sysdep->dpy), false, 0, GrabModeAsync, GrabModeAsync, None, NULL, CurrentTime);
+    return true;
+}
+
+bool BlankScreen::unlock()
+{
+
+    if (_sysdep->dpy)
+    {
+
+        int retval = -1;
+
+        //reset cursor to arrow (no *real* default here...)
+        Cursor normal_cur = XCreateFontCursor(_sysdep->dpy, XC_arrow);
+        XDefineCursor(_sysdep->dpy, DefaultRootWindow(_sysdep->dpy), normal_cur);
+
+        // ungrabbing of keyboard and mouse
+        XUngrabPointer(_sysdep->dpy, CurrentTime);
+        XUngrabKeyboard(_sysdep->dpy, CurrentTime);
+
+
+        retval = XUnmapWindow(_sysdep->dpy,_sysdep->win);
+        if (retval == BadWindow)
+            ConsoleLog writeError(QString("Bad window while unmapping. Badwindow: ").append(int2String(retval)));
+        XFlush(_sysdep->dpy);
+    }
+    if (_sysdep->locked)
+        ConsoleLog writeLine(QString("Unlocked"));
+
+    _sysdep->lockMsg.clear();
+    return !(_sysdep->locked = false);
+}
+
+static Display* _dpy = 0;
+
+Display* X11Info::display()
+{
+	if(!_dpy)
+	{
+		_dpy = XOpenDisplay(0);
+	}
+	return _dpy;
+}