445 lines
13 KiB
C++
445 lines
13 KiB
C++
// BaseDisplay.cc for Fluxbox Window manager
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// Copyright (c) 2001 - 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
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//
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// BaseDisplay.cc for Blackbox - an X11 Window manager
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// Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.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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// $Id: BaseDisplay.cc,v 1.26 2003/01/09 21:55:58 fluxgen Exp $
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#include "BaseDisplay.hh"
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#include "i18n.hh"
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#include "Timer.hh"
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif // HAVE_CONFIG_H
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// use GNU extensions
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif // _GNU_SOURCE
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#include <X11/Xutil.h>
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#ifdef SHAPE
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#include <X11/extensions/shape.h>
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#endif // SHAPE
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif // HAVE_FCNTL_H
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#ifdef HAVE_UNISTD_H
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#include <sys/types.h>
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#include <unistd.h>
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#endif // HAVE_UNISTD_H
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif // HAVE_SYS_SELECT_H
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#ifdef HAVE_SIGNAL_H
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#include <signal.h>
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#endif // HAVE_SIGNAL_H
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#ifndef SA_NODEFER
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#ifdef SA_INTERRUPT
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#define SA_NODEFER SA_INTERRUPT
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#else // !SA_INTERRUPT
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#define SA_NODEFER (0)
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#endif // SA_INTERRUPT
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#endif // SA_NODEFER
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#ifdef HAVE_SYS_WAIT_H
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#include <sys/types.h>
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#include <sys/wait.h>
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#endif // HAVE_SYS_WAIT_H
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#if defined(HAVE_PROCESS_H) && defined(__EMX__)
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#include <process.h>
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#endif // HAVE_PROCESS_H && __EMX__
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#include <iostream>
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using namespace std;
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// X error handler to handle any and all X errors while the application is
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// running
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static Bool internal_error = False;
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static Window last_bad_window = None;
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static int handleXErrors(Display *d, XErrorEvent *e) {
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#ifdef DEBUG
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char errtxt[128];
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XGetErrorText(d, e->error_code, errtxt, 128);
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fprintf(stderr,
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I18n::instance()->
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getMessage(
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FBNLS::BaseDisplaySet, FBNLS::BaseDisplayXError,
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"%s: X error: %s(%d) opcodes %d/%d\n resource 0x%lx\n"),
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BaseDisplay::instance()->getApplicationName(), errtxt, e->error_code,
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e->request_code, e->minor_code, e->resourceid);
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#endif // !DEBUG
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if (e->error_code == BadWindow)
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last_bad_window = e->resourceid;
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if (internal_error)
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abort();
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return(False);
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}
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BaseDisplay *BaseDisplay::s_singleton = 0;
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BaseDisplay::BaseDisplay(const char *app_name, const char *dpy_name):FbTk::App(dpy_name),
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m_startup(true), m_shutdown(false),
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m_display_name(XDisplayName(dpy_name)), m_app_name(app_name),
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m_server_grabs(0)
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{
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if (s_singleton != 0)
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throw string("Can't create more than one instance of BaseDisplay!");
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s_singleton = this;
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last_bad_window = None;
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I18n *i18n = I18n::instance();
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if (display() == 0) {
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throw string(
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i18n->
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getMessage(
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FBNLS::BaseDisplaySet, FBNLS::BaseDisplayXConnectFail,
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"BaseDisplay::BaseDisplay: connection to X server failed."));
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} else if (fcntl(ConnectionNumber(display()), F_SETFD, 1) == -1) {
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throw string(
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i18n->
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getMessage(
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FBNLS::BaseDisplaySet, FBNLS::BaseDisplayCloseOnExecFail,
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"BaseDisplay::BaseDisplay: couldn't mark display connection "
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"as close-on-exec"));
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}
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number_of_screens = ScreenCount(display());
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#ifdef SHAPE
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shape.extensions = XShapeQueryExtension(display(), &shape.event_basep,
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&shape.error_basep);
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#else // !SHAPE
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shape.extensions = False;
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#endif // SHAPE
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XSetErrorHandler((XErrorHandler) handleXErrors);
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for (int i = 0; i < number_of_screens; i++) {
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ScreenInfo *screeninfo = new ScreenInfo(i);
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screenInfoList.push_back(screeninfo);
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}
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}
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BaseDisplay::~BaseDisplay() {
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ScreenInfoList::iterator it = screenInfoList.begin();
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ScreenInfoList::iterator it_end = screenInfoList.end();
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for (; it != it_end; ++it) {
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delete (*it);
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}
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s_singleton = 0;
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}
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BaseDisplay *BaseDisplay::instance() {
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if (s_singleton == 0)
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throw string("BaseDisplay not created!");
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return s_singleton;
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}
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void BaseDisplay::eventLoop() {
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run();
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while ((! m_shutdown) && (! internal_error)) {
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if (XPending(display())) {
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XEvent e;
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XNextEvent(display(), &e);
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if (last_bad_window != None && e.xany.window == last_bad_window) {
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#ifdef DEBUG
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fprintf(stderr,
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I18n::instance()->
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getMessage(
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FBNLS::BaseDisplaySet, FBNLS::BaseDisplayBadWindowRemove,
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"BaseDisplay::eventLoop(): removing bad window "
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"from event queue\n"));
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#endif // DEBUG
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} else {
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last_bad_window = None;
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handleEvent(&e);
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}
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} else {
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FbTk::Timer::updateTimers(ConnectionNumber(display())); //handle all timers
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}
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}
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}
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bool BaseDisplay::validateWindow(Window window) {
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XEvent event;
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if (XCheckTypedWindowEvent(display(), window, DestroyNotify, &event)) {
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XPutBackEvent(display(), &event);
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return false;
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}
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return true;
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}
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void BaseDisplay::grab() {
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if (! m_server_grabs++)
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XGrabServer(display());
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}
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void BaseDisplay::ungrab() {
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if (! --m_server_grabs)
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XUngrabServer(display());
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if (m_server_grabs < 0)
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m_server_grabs = 0;
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}
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ScreenInfo::ScreenInfo(int num) {
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basedisplay = BaseDisplay::instance();
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Display * const disp = basedisplay->getXDisplay();
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screen_number = num;
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root_window = RootWindow(disp, screen_number);
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depth = DefaultDepth(disp, screen_number);
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width =
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WidthOfScreen(ScreenOfDisplay(disp, screen_number));
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height =
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HeightOfScreen(ScreenOfDisplay(disp, screen_number));
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// search for a TrueColor Visual... if we can't find one... we will use the
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// default visual for the screen
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XVisualInfo vinfo_template, *vinfo_return;
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int vinfo_nitems;
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vinfo_template.screen = screen_number;
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vinfo_template.c_class = TrueColor;
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visual = (Visual *) 0;
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if ((vinfo_return = XGetVisualInfo(disp,
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VisualScreenMask | VisualClassMask,
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&vinfo_template, &vinfo_nitems)) &&
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vinfo_nitems > 0) {
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for (int i = 0; i < vinfo_nitems; i++) {
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if (depth < (vinfo_return + i)->depth) {
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depth = (vinfo_return + i)->depth;
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visual = (vinfo_return + i)->visual;
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}
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}
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XFree(vinfo_return);
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}
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if (visual) {
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m_colormap = XCreateColormap(disp, root_window,
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visual, AllocNone);
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} else {
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visual = DefaultVisual(disp, screen_number);
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m_colormap = DefaultColormap(disp, screen_number);
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}
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#ifdef XINERAMA
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// check if we have Xinerama extension enabled
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if (XineramaIsActive(disp)) {
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m_hasXinerama = true;
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xineramaLastHead = 0;
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xineramaInfos =
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XineramaQueryScreens(disp, &xineramaNumHeads);
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} else {
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m_hasXinerama = false;
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xineramaInfos = 0; // make sure we don't point anywhere we shouldn't
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}
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#endif // XINERAMA
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}
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ScreenInfo::~ScreenInfo() {
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#ifdef XINERAMA
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if (m_hasXinerama) { // only free if we first had it
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XFree(xineramaInfos);
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xineramaInfos = 0;
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}
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#endif // XINERAMA
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}
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#ifdef XINERAMA
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/**
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Searches for the head at the coordinates
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x,y. If it fails or Xinerama isn't
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activated it'll return head nr 0
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*/
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unsigned int ScreenInfo::getHead(int x, int y) const {
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// is Xinerama extensions enabled?
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if (hasXinerama()) {
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// check if last head is still active
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/* if ((xineramaInfos[xineramaLastHead].x_org <= x) &&
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((xineramaInfos[xineramaLastHead].x_org +
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xineramaInfos[xineramaLastHead].width) > x) &&
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(xineramaInfos[xineramaLastHead].y_org <= y) &&
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((xineramaInfos[xineramaLastHead].y_org +
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xineramaInfos[xineramaLastHead].height) > y)) {
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return xineramaLastHead;
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} else { */
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// go trough all the heads, and search
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for (int i = 0; (signed) i < xineramaNumHeads; i++) {
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if (xineramaInfos[i].x_org <= x &&
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(xineramaInfos[i].x_org + xineramaInfos[i].width) > x &&
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xineramaInfos[i].y_org <= y &&
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(xineramaInfos[i].y_org + xineramaInfos[i].height) > y)
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// return (xineramaLastHead = i);
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return i;
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}
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// }
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}
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return 0;
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}
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/**
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Searches for the head that the pointer
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currently is on, if it isn't found
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the first one is returned
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*/
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unsigned int ScreenInfo::getCurrHead(void) const {
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// is Xinerama extensions enabled?
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if (hasXinerama()) {
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int x, y, wX, wY;
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unsigned int mask;
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Window rRoot, rChild;
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// get pointer cordinates
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if ( (XQueryPointer(basedisplay->getXDisplay(), root_window,
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&rRoot, &rChild, &x, &y, &wX, &wY, &mask)) != 0 ) {
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return getHead(x, y);
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}
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}
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return 0;
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}
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//----------- getHeadWidth ------------
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// Returns the width of head
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//-------------------------------------
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unsigned int ScreenInfo::getHeadWidth(unsigned int head) const {
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if (hasXinerama()) {
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if ((signed) head >= xineramaNumHeads) {
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#ifdef DEBUG
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cerr << __FILE__ << ":" <<__LINE__ << ": " <<
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"Head: " << head << " doesn't exist!" << endl;
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#endif // DEBUG
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return xineramaInfos[xineramaNumHeads - 1].width;
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} else
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return xineramaInfos[head].width;
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}
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return getWidth();
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}
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//----------- getHeadHeight ------------
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// Returns the heigt of head
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//--------------------------------------
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unsigned int ScreenInfo::getHeadHeight(unsigned int head) const {
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if (hasXinerama()) {
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if ((signed) head >= xineramaNumHeads) {
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#ifdef DEBUG
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cerr << __FILE__ << ":" <<__LINE__ << ": " <<
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"Head: " << head << " doesn't exist!" << endl;
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#endif // DEBUG
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return xineramaInfos[xineramaNumHeads - 1].height;
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} else
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return xineramaInfos[head].height;
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}
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return getHeight();
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}
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//----------- getHeadX -----------------
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// Returns the X start of head nr head
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//--------------------------------------
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int ScreenInfo::getHeadX(unsigned int head) const {
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if (hasXinerama()) {
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if ((signed) head >= xineramaNumHeads) {
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#ifdef DEBUG
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cerr << __FILE__ << ":" <<__LINE__ << ": " <<
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"Head: " << head << " doesn't exist!" << endl;
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#endif // DEBUG
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return xineramaInfos[head = xineramaNumHeads - 1].x_org;
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} else
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return xineramaInfos[head].x_org;
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}
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return 0;
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}
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//----------- getHeadY -----------------
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// Returns the Y start of head
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//--------------------------------------
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int ScreenInfo::getHeadY(unsigned int head) const {
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if (hasXinerama()) {
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if ((signed) head >= xineramaNumHeads) {
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#ifdef DEBUG
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cerr << __FILE__ << ":" <<__LINE__ << ": " <<
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"Head: " << head << " doesn't exist!" << endl;
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#endif // DEBUG
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return xineramaInfos[xineramaNumHeads - 1].y_org;
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} else
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return xineramaInfos[head].y_org;
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}
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return 0;
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}
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#endif // XINERAMA
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