+ int dest_x = x_root;
+ if (x_root <= 0) {
+ dest_x += screen->getRect().width() - 1;
+ dx += screen->getRect().width() - 1;
+ } else {
+ dest_x -= screen->getRect().width() - 1;
+ dx -= screen->getRect().width() - 1;
+ }
+
+ if (! flags.stuck)
+ screen->reassociateWindow(this, dest, False);
+ screen->changeWorkspaceID(dest);
+
+ if (screen->doOpaqueMove())
+ XGrabServer(blackbox->getXDisplay());
+
+ XUngrabPointer(blackbox->getXDisplay(), CurrentTime);
+ XWarpPointer(blackbox->getXDisplay(), None,
+ screen->getRootWindow(), 0, 0, 0, 0,
+ dest_x, y_root);
+ XGrabPointer(blackbox->getXDisplay(), frame.window, False,
+ PointerMotionMask | ButtonReleaseMask,
+ GrabModeAsync, GrabModeAsync,
+ None, blackbox->getMoveCursor(), CurrentTime);
+
+ if (screen->doOpaqueMove())
+ XUngrabServer(blackbox->getXDisplay());
+
+ if (focus)
+ setInputFocus();
+
+}
+
+
+void BlackboxWindow::doWindowSnapping(int &dx, int &dy) {
+ // how much resistance to edges to provide
+ const int resistance_size = screen->getResistanceSize();
+
+ // how far away to snap
+ const int snap_distance = screen->getSnapThreshold();
+
+ // how to snap windows
+ const int snap_to_windows = screen->getWindowToWindowSnap();
+ const int snap_to_edges = screen->getWindowToEdgeSnap();
+ // the amount of space away from the edge to provide resistance/snap
+ const int snap_offset = screen->getSnapOffset();
+
+ // find the geomeetery where the moving window currently is
+ const Rect &moving = screen->doOpaqueMove() ? frame.rect : frame.changing;
+
+ // window corners
+ const int wleft = dx,
+ wright = dx + frame.rect.width() - 1,
+ wtop = dy,
+ wbottom = dy + frame.rect.height() - 1;
+
+ if (snap_to_windows) {
+ RectList rectlist;
+
+ Workspace *w = screen->getWorkspace(getWorkspaceNumber());
+ assert(w);
+
+ // add windows on the workspace to the rect list
+ const BlackboxWindowList& stack_list = w->getStackingList();
+ BlackboxWindowList::const_iterator st_it, st_end = stack_list.end();
+ for (st_it = stack_list.begin(); st_it != st_end; ++st_it)
+ if (*st_it != this) // don't snap to ourself
+ rectlist.push_back( (*st_it)->frameRect() );
+
+ // add the toolbar and the slit to the rect list.
+ // (only if they are not hidden)
+ Toolbar *tbar = screen->getToolbar();
+ Slit *slit = screen->getSlit();
+ Rect tbar_rect, slit_rect;
+ unsigned int bwidth = screen->getBorderWidth() * 2;
+
+ if (! (screen->doHideToolbar() || tbar->isHidden())) {
+ tbar_rect.setRect(tbar->getX(), tbar->getY(), tbar->getWidth() + bwidth,
+ tbar->getHeight() + bwidth);
+ rectlist.push_back(tbar_rect);
+ }
+
+ if (! slit->isHidden()) {
+ slit_rect.setRect(slit->getX(), slit->getY(), slit->getWidth() + bwidth,
+ slit->getHeight() + bwidth);
+ rectlist.push_back(slit_rect);
+ }
+
+ RectList::const_iterator it, end = rectlist.end();
+ for (it = rectlist.begin(); it != end; ++it) {
+ bool snapped = False;
+ const Rect &winrect = *it;
+ Rect offsetrect;
+ offsetrect.setCoords(winrect.left() - snap_offset,
+ winrect.top() - snap_offset,
+ winrect.right() + snap_offset,
+ winrect.bottom() + snap_offset);
+
+ if (snap_to_windows == BScreen::WindowResistance)
+ // if the window is already over top of this snap target, then
+ // resistance is futile, so just ignore it
+ if (winrect.intersects(moving))
+ continue;
+
+ int dleft, dright, dtop, dbottom;
+
+ // if the windows are in the same plane vertically
+ if (wtop >= (signed)(winrect.y() - frame.rect.height() + 1) &&
+ wtop < (signed)(winrect.y() + winrect.height() - 1)) {
+
+ if (snap_to_windows == BScreen::WindowResistance) {
+ dleft = wright - offsetrect.left();
+ dright = offsetrect.right() - wleft;
+
+ // snap left of other window?
+ if (dleft >= 0 && dleft < resistance_size &&
+ dleft < (wright - wleft)) {
+ dx = offsetrect.left() - frame.rect.width();
+ snapped = True;
+ }
+ // snap right of other window?
+ else if (dright >= 0 && dright < resistance_size &&
+ dright < (wright - wleft)) {
+ dx = offsetrect.right() + 1;
+ snapped = True;
+ }
+ } else { // BScreen::WindowSnap
+ dleft = abs(wright - offsetrect.left());
+ dright = abs(wleft - offsetrect.right());