// BaseDisplay.cc for Fluxbox Window manager // Copyright (c) 2001 - 2002 Henrik Kinnunen (fluxgen@linuxmail.org) // // BaseDisplay.cc for Blackbox - an X11 Window manager // Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net) // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // $Id: BaseDisplay.cc,v 1.20 2002/08/30 12:57:41 fluxgen Exp $ #include "BaseDisplay.hh" #include "i18n.hh" #include "Timer.hh" #ifdef HAVE_CONFIG_H #include "../config.h" #endif // HAVE_CONFIG_H // use GNU extensions #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif // _GNU_SOURCE #include <X11/Xutil.h> #ifdef SHAPE #include <X11/extensions/shape.h> #endif // SHAPE #ifdef HAVE_FCNTL_H #include <fcntl.h> #endif // HAVE_FCNTL_H #ifdef HAVE_STDIO_H #include <stdio.h> #endif // HAVE_STDIO_H #ifdef STDC_HEADERS #include <stdlib.h> #include <string.h> #endif // STDC_HEADERS #ifdef HAVE_UNISTD_H #include <sys/types.h> #include <unistd.h> #endif // HAVE_UNISTD_H #ifdef HAVE_SYS_SELECT_H #include <sys/select.h> #endif // HAVE_SYS_SELECT_H #ifdef HAVE_SIGNAL_H #include <signal.h> #endif // HAVE_SIGNAL_H #ifndef SA_NODEFER # ifdef SA_INTERRUPT # define SA_NODEFER SA_INTERRUPT # else // !SA_INTERRUPT # define SA_NODEFER (0) # endif // SA_INTERRUPT #endif // SA_NODEFER #ifdef HAVE_SYS_WAIT_H # include <sys/types.h> # include <sys/wait.h> #endif // HAVE_SYS_WAIT_H #if defined(HAVE_PROCESS_H) && defined(__EMX__) # include <process.h> #endif // HAVE_PROCESS_H __EMX__ #include <iostream> using namespace std; // X error handler to handle any and all X errors while the application is // running static Bool internal_error = False; static Window last_bad_window = None; #ifdef DEBUG static int handleXErrors(Display *d, XErrorEvent *e) { char errtxt[128]; XGetErrorText(d, e->error_code, errtxt, 128); fprintf(stderr, I18n::instance()-> getMessage( FBNLS::BaseDisplaySet, FBNLS::BaseDisplayXError, "%s: X error: %s(%d) opcodes %d/%d\n resource 0x%lx\n"), BaseDisplay::instance()->getApplicationName(), errtxt, e->error_code, e->request_code, e->minor_code, e->resourceid); #else // !DEBUG static int handleXErrors(Display *, XErrorEvent *e) { #endif // DEBUG if (e->error_code == BadWindow) last_bad_window = e->resourceid; if (internal_error) abort(); return(False); } // convenience functions #ifndef __EMX__ void bexec(const char *command, char *displaystring) { if (! fork()) { setsid(); putenv(displaystring); execl("/bin/sh", "/bin/sh", "-c", command, 0); exit(0); } } #endif // !__EMX__ BaseDisplay *BaseDisplay::s_singleton = 0; Display *BaseDisplay::s_display = 0; BaseDisplay::BaseDisplay(const char *app_name, const char *dpy_name): m_startup(true), m_shutdown(false), m_display_name(XDisplayName(dpy_name)), m_app_name(app_name), m_server_grabs(0) { if (s_singleton != 0) throw string("Can't create more than one instance of BaseDisplay!"); s_singleton = this; last_bad_window = None; I18n *i18n = I18n::instance(); if (! (s_display = XOpenDisplay(dpy_name))) { fprintf(stderr, i18n-> getMessage( FBNLS::BaseDisplaySet, FBNLS::BaseDisplayXConnectFail, "BaseDisplay::BaseDisplay: connection to X server failed.\n")); throw static_cast<int>(2); //throw error 2 } else if (fcntl(ConnectionNumber(s_display), F_SETFD, 1) == -1) { fprintf(stderr, i18n-> getMessage( FBNLS::BaseDisplaySet, FBNLS::BaseDisplayCloseOnExecFail, "BaseDisplay::BaseDisplay: couldn't mark display connection " "as close-on-exec\n")); throw static_cast<int>(2); //throw error 2 } number_of_screens = ScreenCount(s_display); #ifdef SHAPE shape.extensions = XShapeQueryExtension(s_display, &shape.event_basep, &shape.error_basep); #else // !SHAPE shape.extensions = False; #endif // SHAPE XSetErrorHandler((XErrorHandler) handleXErrors); for (int i = 0; i < number_of_screens; i++) { ScreenInfo *screeninfo = new ScreenInfo(this, i); screenInfoList.push_back(screeninfo); } } BaseDisplay::~BaseDisplay() { ScreenInfoList::iterator it = screenInfoList.begin(); ScreenInfoList::iterator it_end = screenInfoList.end(); for (; it != it_end; ++it) { delete (*it); } XCloseDisplay(s_display); s_display = 0; s_singleton = 0; } BaseDisplay *BaseDisplay::instance() { if (s_singleton == 0) throw string("BaseDisplay not created!"); return s_singleton; } void BaseDisplay::eventLoop() { run(); while ((! m_shutdown) && (! internal_error)) { if (XPending(s_display)) { XEvent e; XNextEvent(s_display, &e); if (last_bad_window != None && e.xany.window == last_bad_window) { #ifdef DEBUG fprintf(stderr, I18n::instance()-> getMessage( FBNLS::BaseDisplaySet, FBNLS::BaseDisplayBadWindowRemove, "BaseDisplay::eventLoop(): removing bad window " "from event queue\n")); #endif // DEBUG } else { last_bad_window = None; handleEvent(&e); } } else { BTimer::updateTimers(ConnectionNumber(s_display)); //handle all timers } } } bool BaseDisplay::validateWindow(Window window) { XEvent event; if (XCheckTypedWindowEvent(s_display, window, DestroyNotify, &event)) { XPutBackEvent(s_display, &event); return false; } return true; } void BaseDisplay::grab() { if (! m_server_grabs++) XGrabServer(s_display); } void BaseDisplay::ungrab() { if (! --m_server_grabs) XUngrabServer(s_display); if (m_server_grabs < 0) m_server_grabs = 0; } ScreenInfo::ScreenInfo(BaseDisplay *d, int num) { basedisplay = d; screen_number = num; root_window = RootWindow(basedisplay->getXDisplay(), screen_number); depth = DefaultDepth(basedisplay->getXDisplay(), screen_number); width = WidthOfScreen(ScreenOfDisplay(basedisplay->getXDisplay(), screen_number)); height = HeightOfScreen(ScreenOfDisplay(basedisplay->getXDisplay(), screen_number)); // search for a TrueColor Visual... if we can't find one... we will use the // default visual for the screen XVisualInfo vinfo_template, *vinfo_return; int vinfo_nitems; vinfo_template.screen = screen_number; vinfo_template.c_class = TrueColor; visual = (Visual *) 0; if ((vinfo_return = XGetVisualInfo(basedisplay->getXDisplay(), VisualScreenMask | VisualClassMask, &vinfo_template, &vinfo_nitems)) && vinfo_nitems > 0) { for (int i = 0; i < vinfo_nitems; i++) { if (depth < (vinfo_return + i)->depth) { depth = (vinfo_return + i)->depth; visual = (vinfo_return + i)->visual; } } XFree(vinfo_return); } if (visual) { m_colormap = XCreateColormap(basedisplay->getXDisplay(), root_window, visual, AllocNone); } else { visual = DefaultVisual(basedisplay->getXDisplay(), screen_number); m_colormap = DefaultColormap(basedisplay->getXDisplay(), screen_number); } #ifdef XINERAMA // check if we have Xinerama extension enabled if (XineramaIsActive(basedisplay->getXDisplay())) { m_hasXinerama = true; xineramaLastHead = 0; xineramaInfos = XineramaQueryScreens(basedisplay->getXDisplay(), &xineramaNumHeads); } else { m_hasXinerama = false; xineramaInfos = 0; // make sure we don't point anywhere we shouldn't } #endif // XINERAMA } ScreenInfo::~ScreenInfo(void) { #ifdef XINERAMA if (m_hasXinerama) { // only free if we first had it XFree(xineramaInfos); xineramaInfos = 0; } #endif // XINERAMA } #ifdef XINERAMA //---------------- getHead --------------- // Searches for the head at the coordinates // x,y. If it fails or Xinerama isn't // activated it'll return head nr 0 //----------------------------------------- unsigned int ScreenInfo::getHead(int x, int y) const { // is Xinerama extensions enabled? if (hasXinerama()) { // check if last head is still active /* if ((xineramaInfos[xineramaLastHead].x_org <= x) && ((xineramaInfos[xineramaLastHead].x_org + xineramaInfos[xineramaLastHead].width) > x) && (xineramaInfos[xineramaLastHead].y_org <= y) && ((xineramaInfos[xineramaLastHead].y_org + xineramaInfos[xineramaLastHead].height) > y)) { return xineramaLastHead; } else { */ // go trough all the heads, and search for (int i = 0; (signed) i < xineramaNumHeads; i++) { if (xineramaInfos[i].x_org <= x && (xineramaInfos[i].x_org + xineramaInfos[i].width) > x && xineramaInfos[i].y_org <= y && (xineramaInfos[i].y_org + xineramaInfos[i].height) > y) // return (xineramaLastHead = i); return i; } // } } return 0; } //------------- getCurrHead -------------- // Searches for the head that the pointer // currently is on, if it isn't found // the first one is returned //---------------------------------------- unsigned int ScreenInfo::getCurrHead(void) const { // is Xinerama extensions enabled? if (hasXinerama()) { int x, y, wX, wY; unsigned int mask; Window rRoot, rChild; // get pointer cordinates if ( (XQueryPointer(basedisplay->getXDisplay(), root_window, &rRoot, &rChild, &x, &y, &wX, &wY, &mask)) != 0 ) { return getHead(x, y); } } return 0; } //----------- getHeadWidth ------------ // Returns the width of head //------------------------------------- unsigned int ScreenInfo::getHeadWidth(unsigned int head) const { if (hasXinerama()) { if ((signed) head >= xineramaNumHeads) { #ifdef DEBUG cerr << __FILE__ << ":" <<__LINE__ << ": " << "Head: " << head << " doesn't exist!" << endl; #endif // DEBUG return xineramaInfos[xineramaNumHeads - 1].width; } else return xineramaInfos[head].width; } return getWidth(); } //----------- getHeadHeight ------------ // Returns the heigt of head //-------------------------------------- unsigned int ScreenInfo::getHeadHeight(unsigned int head) const { if (hasXinerama()) { if ((signed) head >= xineramaNumHeads) { #ifdef DEBUG cerr << __FILE__ << ":" <<__LINE__ << ": " << "Head: " << head << " doesn't exist!" << endl; #endif // DEBUG return xineramaInfos[xineramaNumHeads - 1].height; } else return xineramaInfos[head].height; } return getHeight(); } //----------- getHeadX ----------------- // Returns the X start of head nr head //-------------------------------------- int ScreenInfo::getHeadX(unsigned int head) const { if (hasXinerama()) { if ((signed) head >= xineramaNumHeads) { #ifdef DEBUG cerr << __FILE__ << ":" <<__LINE__ << ": " << "Head: " << head << " doesn't exist!" << endl; #endif // DEBUG return xineramaInfos[head = xineramaNumHeads - 1].x_org; } else return xineramaInfos[head].x_org; } return 0; } //----------- getHeadY ----------------- // Returns the Y start of head //-------------------------------------- int ScreenInfo::getHeadY(unsigned int head) const { if (hasXinerama()) { if ((signed) head >= xineramaNumHeads) { #ifdef DEBUG cerr << __FILE__ << ":" <<__LINE__ << ": " << "Head: " << head << " doesn't exist!" << endl; #endif // DEBUG return xineramaInfos[xineramaNumHeads - 1].y_org; } else return xineramaInfos[head].y_org; } return 0; } #endif // XINERAMA