90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
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// XDisplay.cc for Openbox
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// Copyright (c) 2002 - 2002 Ben Janens (ben at orodu.net)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#include "Xdisplay.h"
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#include "XScreen.h"
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#include "Util.h"
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#include <iostream>
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#include <algorithm>
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using std::cerr;
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Xdisplay::Xdisplay(const char *dpyname) {
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_grabs = 0;
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_hasshape = false;
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_display = XOpenDisplay(dpy_name);
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if (_display == NULL) {
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cerr << "Could not open display. Connection to X server failed.\n";
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::exit(2);
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}
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if (-1 == fcntl(ConnectionNumber(display), F_SETFD, 1)) {
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cerr << "Could not mark display connection as close-on-exec.\n";
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::exit(2);
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}
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_name = XDisplayName(dpyname);
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XSetErrorHandler(XErrorHandler);
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#ifdef SHAPE
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int waste;
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_hasshape = XShapeQueryExtension(_display, &_shape_event_base, &waste);
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#endif // SHAPE
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const unsigned int scount = ScreenCount(_display);
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_screens.reserve(scount);
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for (unsigned int s = 0; s < scount; s++)
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_screens.push_back(new XScreen(_display, s));
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}
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Xdisplay::~Xdisplay() {
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std::for_each(_screens.begin(), _screens.end(), PointerAssassin());
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XCloseDisplay(_display);
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}
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/*
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* Return information about a screen.
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*/
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XScreen *Xdisplay::screen(unsigned int s) const {
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ASSERT(s < _screens.size());
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return _screens[s];
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}
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/*
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* Grab the X server
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*/
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void XDisplay::grab() {
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if (_grabs++ == 0)
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XGrabServer(_display);
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}
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/*
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* Release the X server from a grab
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*/
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void XDisplay::ungrab() {
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if (--_grabs == 0)
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XUngrabServer(_display);
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}
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