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x2x.c
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/*
* x2x: Uses the XTEST extension to forward mouse movements and
* keystrokes from a window on one display to another display. Useful
* for desks with multiple keyboards.
*
* Copyright (c) 1997
* Digital Equipment Corporation. All rights reserved.
*
* By downloading, installing, using, modifying or distributing this
* software, you agree to the following:
*
* 1. CONDITIONS. Subject to the following conditions, you may download,
* install, use, modify and distribute this software in source and binary
* forms:
*
* a) Any source code, binary code and associated documentation
* (including the online manual) used, modified or distributed must
* reproduce and retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* b) No right is granted to use any trade name, trademark or logo of
* Digital Equipment Corporation. Neither the "Digital Equipment
* Corporation" name nor any trademark or logo of Digital Equipment
* Corporation may be used to endorse or promote products derived from
* this software without the prior written permission of Digital
* Equipment Corporation.
*
* 2. DISCLAIMER. THIS SOFTWARE IS PROVIDED BY DIGITAL "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Modified on 3 Oct 1998 by Charles Briscoe-Smith:
* added options -north and -south
*/
/* Cygwin version with -fromwin to allow source to be a Windows
* machine that is not running a X server.
* Adapted by Mark Hayter 2003 using win2vnc ClientConnect.cpp code
*
* Original win2vnc copyright follows:
*/
// win2vnc, adapted from vncviewer by Fredrik Hubinette 2001
//
// Original copyright follows:
//
// Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
//
// This file is part of the VNC system.
//
// The VNC system is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
//
// If the source code for the VNC system is not available from the place
// whence you received this file, check http://www.uk.research.att.com/vnc or contact
// the authors on [email protected] for information on obtaining it.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/Xresource.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/Xatom.h> /* for selection */
#include <X11/Xos.h>
#include <X11/extensions/XTest.h>
#include <X11/keysym.h>
#ifdef WIN_2_X
#define _WIN32_WINNT 0x0500
#include <windows.h>
#include <windowsx.h>
#include <assert.h>
#include "keymap.h"
#include "resource.h"
#define X2X_MSG_HOTKEY (WM_USER + 1)
#define DPMSModeOn 0
extern Status DPMSForceLevel(Display *, unsigned short);
#else
#include <X11/extensions/dpms.h>
#endif
/*#define DEBUG*/
#ifndef MIN
#define MIN(x,y) (((x) < (y)) ? (x) : (y))
#endif
#ifndef MAX
#define MAX(x,y) (((x) > (y)) ? (x) : (y))
#endif
#define UTF8_STRING "UTF8_STRING"
/**********
* definitions for edge
**********/
#define EDGE_NONE 0 /* don't transfer between edges of screens */
#define EDGE_NORTH 1 /* from display is on the north side of to display */
#define EDGE_SOUTH 2 /* from display is on the south side of to display */
#define EDGE_EAST 3 /* from display is on the east side of to display */
#define EDGE_WEST 4 /* from display is on the west side of to display */
/**********
* functions
**********/
static void ParseCommandLine();
static Display *OpenAndCheckDisplay();
static Bool CheckTestExtension();
#ifndef WIN_2_X
static int ErrorHandler();
#endif
static void DoX2X();
static void InitDpyInfo();
static void DoConnect();
static void DoDisconnect();
static void RegisterEventHandlers();
static Bool ProcessEvent();
static Bool ProcessMotionNotify();
static Bool ProcessExpose();
static void DrawWindowText();
static Bool ProcessEnterNotify();
static Bool ProcessButtonPress();
static Bool ProcessButtonRelease();
static Bool ProcessKeyEvent();
static Bool ProcessConfigureNotify();
static Bool ProcessClientMessage();
static Bool ProcessSelectionRequest();
static void SendPing();
static Bool ProcessPropertyNotify();
static Bool ProcessSelectionNotify();
static void SendSelectionNotify();
static Bool ProcessSelectionClear();
static Bool ProcessVisibility();
static Bool ProcessMapping();
static void FakeThingsUp();
static void FakeAction();
static void RefreshPointerMapping();
static void Usage();
/**********
* stuff for selection forwarding
**********/
typedef struct _dpyxtra {
Display *otherDpy;
int sState;
Atom pingAtom;
Bool pingInProg;
Window propWin;
} DPYXTRA, *PDPYXTRA;
/**********
* structures for recording state of buttons and keys
**********/
typedef struct _fakestr {
struct _fakestr *pNext;
int type;
unsigned int thing;
} FAKE, *PFAKE;
#define FAKE_KEY 0
#define FAKE_BUTTON 1
#define N_BUTTONS 20
#define MAX_BUTTONMAPEVENTS 20
#define GETDPYXTRA(DPY,PDPYINFO)\
(((DPY) == (PDPYINFO)->fromDpy) ?\
&((PDPYINFO)->fromDpyXtra) : &((PDPYINFO)->toDpyXtra))
/* values for sState */
#define SELSTATE_ON 0
#define SELSTATE_OFF 1
#define SELSTATE_WAIT 2
/* special values for translated coordinates */
#define COORD_INCR -1
#define COORD_DECR -2
#define SPECIAL_COORD(COORD) (((COORD) < 0) ? (COORD) : 0)
/* max unreasonable coordinates before accepting it */
#define MAX_UNREASONABLES 10
/**********
* display information
**********/
typedef struct {
/* stuff on "from" display */
Display *fromDpy;
Atom fromDpyUtf8String;
Atom fromDpyTargets;
Window root;
Window trigger;
Window big;
GC textGC;
Atom wmpAtom, wmdwAtom;
Cursor grabCursor;
Font fid;
int width, height, twidth, theight, tascent;
Bool vertical;
int lastFromCoord;
int unreasonableDelta;
#ifdef WIN_2_X
int unreasonableCount;
/* From display info for Windows */
HWND bigwindow;
HWND edgewindow;
int onedge;
int fromWidth, fromHeight;
int wdelta;
int lastFromY;
HWND hwndNextViewer;
// int initialClipboardSeen;
char *winSelText;
int owntoXsel;
int expectSelNotify;
int expectOwnClip;
int winSSave;
int nXbuttons;
RECT monitorRect;
RECT screenRect;
int screenHeight;
int screenWidth;
int lastFromX;
#endif /* WIN_2_X */
/* stuff on "to" display */
Display *toDpy;
Atom toDpyUtf8String;
Atom toDpyTargets;
Window selWin;
unsigned int inverseMap[N_BUTTONS + 1]; /* inverse of button mapping */
/* state of connection */
int mode; /* connection */
int eventMask; /* trigger */
/* coordinate conversion stuff */
int toScreen;
int nScreens;
short **xTables; /* precalculated conversion tables */
short **yTables;
int fromConnCoord; /* location of cursor after conn/disc ops */
int fromDiscCoord;
int fromIncrCoord; /* location of cursor after incr/decr ops */
int fromDecrCoord;
/* selection forwarding info */
DPYXTRA fromDpyXtra;
DPYXTRA toDpyXtra;
Display *sDpy;
XSelectionRequestEvent sEv;
Time sTime;
/* for recording state of buttons and keys */
PFAKE pFakeThings;
} DPYINFO, *PDPYINFO;
/* shadow displays */
typedef struct _shadow {
struct _shadow *pNext;
char *name;
Display *dpy;
} SHADOW, *PSHADOW;
/* sticky keys */
typedef struct _sticky {
struct _sticky *pNext;
Bool isPress;
KeySym keysym;
} STICKY, *PSTICKY;
typedef int (*HANDLER)(); /* event handler function */
/* These prototypes need the typedefs */
#ifdef WIN_2_X
static void MoveWindowToEdge(PDPYINFO);
static int MoveWindowToScreen(PDPYINFO);
static void DoWinConnect(PDPYINFO, int, int);
static void DoWinDisconnect(PDPYINFO, int, int);
static void SendButtonClick(PDPYINFO, int);
LRESULT CALLBACK WinProcessMessage (HWND, UINT, WPARAM, LPARAM);
void WinPointerEvent(PDPYINFO, int, int, DWORD, UINT);
void WinKeyEvent(PDPYINFO, int, DWORD);
void SendKeyEvent(PDPYINFO, KeySym, int, int, int);
static Bool ProcessSelectionRequestW();
static Bool ProcessSelectionNotifyW();
static Bool ProcessSelectionClearW();
#ifdef DEBUGCHATTY
char *msgtotext(int);
#endif
#endif /* WIN_2_X */
/**********
* top-level variables
**********/
static char *programStr = "x2x";
static char *fromDpyName = NULL;
static char *toDpyName = NULL;
static char *defaultFN = "-*-times-bold-r-*-*-*-180-*-*-*-*-*-*";
static char *fontName = "-*-times-bold-r-*-*-*-180-*-*-*-*-*-*";
static char *label = NULL;
static char *title = NULL;
static char *pingStr = "PING"; /* atom for ping request */
static char *geomStr = NULL;
static Bool waitDpy = False;
static Bool doBig = False;
static Bool doMouse = True;
static int doEdge = EDGE_NONE;
static Bool doSel = True;
static Bool doAutoUp = True;
static Bool doResurface = False;
static PSHADOW shadows = NULL;
static int triggerw = 2;
static Bool doPointerMap = True;
static PSTICKY stickies = NULL;
static Bool doBtnBlock = False;
static Bool doCapsLkHack = False;
static Bool doClipCheck = False;
static Bool singleSticky = False;
static Bool doDpmsMouse = False;
static int logicalOffset= 0;
static int nButtons = 0;
static KeySym buttonmap[N_BUTTONS + 1][MAX_BUTTONMAPEVENTS + 1];
#ifdef WIN_2_X
/* These are used to allow pointer comparisons */
static char *fromWinName = "x2xFromWin";
static int dummy;
static Display *fromWin = (Display *)&dummy;
static HWND hWndSave;
static HINSTANCE m_instance;
#endif
#ifdef DEBUG
#define debug printf
#else
void debug(const char* fmt, ...)
{
}
#endif
#ifdef WIN_2_X
#define MAX_WIN_ARGS 40
int STDCALL
WinMain (HINSTANCE hInst, HINSTANCE hPrev, LPSTR lpCmd, int nShow)
{
Display *fromDpy;
PSHADOW pShadow;
int argc;
char *argv[MAX_WIN_ARGS];
char *ap;
if (lpCmd[0] == ' ')
{
lpCmd++;
}
argv[0] = programStr;
argc = 1;
ap = lpCmd;
/* XXX mdh - Should probably deal with quotes properly too */
while (*ap && (argc < MAX_WIN_ARGS)) {
argv[argc++] = ap;
while (*ap && (*ap != ' ')) ap++;
if (*ap == ' ') *ap++ = 0;
}
m_instance = hInst;
#else /* Not WIN_2_X */
/**********
* main
**********/
int main(argc, argv)
int argc;
char **argv;
{
Display *fromDpy;
PSHADOW pShadow;
#endif /* WIN_2_X */
XrmInitialize();
ParseCommandLine(argc, argv);
#ifdef WIN_2_X
if (fromDpyName != fromWinName)
fromDpyName = XDisplayName(fromDpyName);
#else
fromDpyName = XDisplayName(fromDpyName);
#endif
toDpyName = XDisplayName(toDpyName);
if (!strcasecmp(toDpyName, fromDpyName)) {
fprintf(stderr, "%s: display names are both %s\n", programStr, toDpyName);
exit(1);
}
/* no OS independent way to stop Xlib from complaining via stderr,
but can always pipe stdout/stderr to /dev/null */
/* convert to real name: */
#ifdef WIN_2_X
if (fromDpyName == fromWinName) {
/* From is Windows, don't need to open */
fromDpy = fromWin;
} else
/* This ugly hanging else... */
#endif /* WIN_2_X */
/* ... qualifies this while in WIN_2_X case with an X source */
while ((fromDpy = XOpenDisplay(fromDpyName)) == NULL) {
if (!waitDpy) {
fprintf(stderr, "%s - error: can not open display %s\n",
programStr, fromDpyName);
exit(2);
} /* END if */
sleep(10);
} /* END while fromDpy */
/* toDpy is always the first shadow */
pShadow = (PSHADOW)malloc(sizeof(SHADOW));
pShadow->name = toDpyName;
/* link into the global list */
pShadow->pNext = shadows;
shadows = pShadow;
/* initialize all of the shadows, including the toDpy */
for (pShadow = shadows; pShadow; pShadow = pShadow->pNext)
if (!(pShadow->dpy = OpenAndCheckDisplay(pShadow->name)))
exit(3);
#ifndef WIN_2_X
/* set error handler,
so that program does not abort on non-critcal errors */
XSetErrorHandler(ErrorHandler);
#endif
/* run the x2x loop */
DoX2X(fromDpy, shadows->dpy);
/* shut down gracefully */
#ifdef WIN_2_X
/* Only close if it is a real X from display */
if (fromDpy != fromWin)
XCloseDisplay(fromDpy);
#else
XCloseDisplay(fromDpy);
#endif
for (pShadow = shadows; pShadow; pShadow = pShadow->pNext)
XCloseDisplay(pShadow->dpy);
exit(0);
} /* END main */
static Display *OpenAndCheckDisplay(name)
char *name;
{
Display *openDpy;
/* convert to real name: */
name = XDisplayName(name);
while ((openDpy = XOpenDisplay(name)) == NULL) {
if (!waitDpy) {
fprintf(stderr, "%s - error: can not open display %s\n",
programStr, name);
return NULL;
} /* END if */
sleep(10);
} /* END while openDpy */
if (!CheckTestExtension(openDpy)) {
fprintf(stderr,
"%s - error: display %s does not support the test extension\n",
programStr, name);
return NULL;
}
return (openDpy);
} /* END OpenAndCheckDisplay */
/**********
* use standard X functions to parse the command line
**********/
static void ParseCommandLine(argc, argv)
int argc;
char **argv;
{
int arg;
PSHADOW pShadow;
extern char *lawyerese;
PSTICKY pNewSticky;
KeySym keysym;
int button;
int eventno;
char *keyname, *argptr;
debug("programStr = %s\n", programStr);
/* Clear button map */
for (button = 0; button <= N_BUTTONS; button++)
buttonmap[button][0] = NoSymbol;
for (arg = 1; arg < argc; ++arg) {
#ifdef WIN_2_X
if (!strcasecmp(argv[arg], "-fromWin")) {
fromDpyName = fromWinName;
/* XXX mdh - For now only support edge windows getting big */
/* Note: -east will override correctly (even if earlier on the line) */
doBig = True;
if (doEdge == EDGE_NONE) doEdge = EDGE_WEST;
doCapsLkHack = True;
debug("fromDpyName = %s\n", fromDpyName);
} else
/* Note this else will qualify the if below... */
#endif /* WIN_2_X */
if (!strcasecmp(argv[arg], "-from")) {
if (++arg >= argc) Usage();
fromDpyName = argv[arg];
debug("fromDpyName = %s\n", fromDpyName);
} else if (!strcasecmp(argv[arg], "-to")) {
if (++arg >= argc) Usage();
toDpyName = argv[arg];
debug("toDpyName = %s\n", toDpyName);
} else if (!strcasecmp(argv[arg], "-font")) {
if (++arg >= argc) Usage();
fontName = argv[arg];
debug("fontName = %s\n", fontName);
} else if (!strcasecmp(argv[arg], "-label")) {
if (++arg >= argc) Usage();
label = argv[arg];
debug("label = %s\n", label);
} else if (!strcasecmp(argv[arg], "-title")) {
if (++arg > argc) Usage();
title = argv[arg];
debug("title = %s\n", title);
} else if (!strcasecmp(argv[arg], "-geometry")) {
if (++arg >= argc) Usage();
geomStr = argv[arg];
debug("geometry = %s\n", geomStr);
} else if (!strcasecmp(argv[arg], "-wait")) {
waitDpy = True;
debug("will wait for displays\n");
} else if (!strcasecmp(argv[arg], "-big")) {
doBig = True;
debug("will create big window on from display\n");
} else if (!strcasecmp(argv[arg], "-nomouse")) {
doMouse = False;
debug("will not capture mouse (eek!)\n");
} else if (!strcasecmp(argv[arg], "-nopointermap")) {
doPointerMap = False;
debug("will not do pointer mapping\n");
} else if (!strcasecmp(argv[arg], "-north")) {
doEdge = EDGE_NORTH;
debug("\"from\" is on the north side of \"to\"\n");
} else if (!strcasecmp(argv[arg], "-south")) {
doEdge = EDGE_SOUTH;
debug("\"from\" is on the south side of \"to\"\n");
} else if (!strcasecmp(argv[arg], "-east")) {
doEdge = EDGE_EAST;
debug("\"from\" is on the east side of \"to\"\n");
} else if (!strcasecmp(argv[arg], "-west")) {
doEdge = EDGE_WEST;
debug("\"from\" is on the west side of \"to\"\n");
} else if (!strcasecmp(argv[arg], "-nosel")) {
doSel = False;
debug("will not transmit X selections between displays\n");
} else if (!strcasecmp(argv[arg], "-noautoup")) {
doAutoUp = False;
debug("will not automatically lift keys and buttons\n");
} else if (!strcasecmp(argv[arg], "-buttonblock")) {
doBtnBlock = True;
debug("mouse buttons down will block disconnects\n");
} else if (!strcasecmp(argv[arg], "-capslockhack")) {
doCapsLkHack = True;
debug("behavior of CapsLock will be hacked\n");
} else if (!strcasecmp(argv[arg], "-dpmsmouse")) {
doDpmsMouse = True;
debug("mouse movement wakes monitor\n");
} else if (!strcasecmp(argv[arg], "-offset")) {
if (++arg >= argc) Usage();
logicalOffset = atoi(argv[arg]);
debug("logicalOffset %d\n", logicalOffset);
} else if (!strcasecmp(argv[arg], "-clipcheck")) {
doClipCheck = True;
debug("Clipboard type will be checked for XA_STRING\n");
} else if (!strcasecmp(argv[arg], "-nocapslockhack")) {
doCapsLkHack = False;
debug("behavior of CapsLock will not be hacked\n");
} else if (!strcasecmp(argv[arg], "-sticky")) {
if (++arg >= argc) Usage();
if ((keysym = XStringToKeysym(argv[arg])) != NoSymbol) {
pNewSticky = (PSTICKY)malloc(sizeof(STICKY));
pNewSticky->pNext = stickies;
pNewSticky->isPress = True;
pNewSticky->keysym = keysym;
stickies = pNewSticky;
debug("will press/release sticky key: %s\n", argv[arg]);
} else {
printf("x2x: warning: can't translate %s\n", argv[arg]);
}
} else if (!strcasecmp(argv[arg], "-singlesticky")) {
singleSticky = True;
debug("behaviour of sticky keys will be single\n", argv[arg]);
} else if (!strcasecmp(argv[arg], "-buttonmap")) {
if (++arg >= argc) Usage();
button = atoi(argv[arg]);
if ((button < 1) || (button > N_BUTTONS))
printf("x2x: warning: invalid button %d\n", button);
else if (++arg >= argc)
Usage();
else
{
debug("will map button %d to keysyms '%s'\n", button, argv[arg]);
argptr = argv[arg];
eventno = 0;
while ((keyname = strtok(argptr, " \t\n\r")) != NULL)
{
if ((keysym = XStringToKeysym(keyname)) == NoSymbol)
printf("x2x: warning: can't translate %s\n", keyname);
else if (eventno + 1 >= MAX_BUTTONMAPEVENTS)
printf("x2x: warning: too many keys mapped to button %d\n",
button);
else
buttonmap[button][eventno++] = keysym;
argptr = NULL;
}
buttonmap[button][eventno] = NoSymbol;
}
} else if (!strcasecmp(argv[arg], "-resurface")) {
doResurface = True;
debug("will resurface the trigger window when obscured\n");
} else if (!strcasecmp(argv[arg], "-shadow")) {
if (++arg >= argc) Usage();
pShadow = (PSHADOW)malloc(sizeof(SHADOW));
pShadow->name = argv[arg];
/* into the global list of shadows */
pShadow->pNext = shadows;
shadows = pShadow;
} else if (!strcasecmp(argv[arg], "-triggerw")) {
if (++arg >= argc) Usage();
triggerw = atoi(argv[arg]);
} else if (!strcasecmp(argv[arg], "-copyright")) {
puts(lawyerese);
} else {
Usage();
} /* END if... */
} /* END for */
} /* END ParseCommandLine */
static void Usage()
{
#ifdef WIN_2_X
printf("Usage: x2x [-fromwin | -from <DISPLAY>][-to <DISPLAY>] options..\n");
#else
printf("Usage: x2x [-to <DISPLAY> | -from <DISPLAY>] options...\n");
#endif
printf(" -copyright\n");
printf(" -font <FONTNAME>\n");
printf(" -geometry <GEOMETRY>\n");
printf(" -wait\n");
printf(" -big\n");
printf(" -buttonblock\n");
printf(" -nomouse\n");
printf(" -nopointermap\n");
printf(" -north\n");
printf(" -south\n");
printf(" -east\n");
printf(" -west\n");
printf(" -nosel\n");
printf(" -noautoup\n");
printf(" -resurface\n");
printf(" -capslockhack\n");
printf(" -nocapslockhack\n");
printf(" -clipcheck\n");
printf(" -shadow <DISPLAY>\n");
printf(" -sticky <sticky key>\n");
printf(" -singlesticky\n");
printf(" -label <LABEL>\n");
printf(" -title <TITLE>\n");
printf(" -buttonmap <button#> \"<keysym> ...\"\n");
#ifdef WIN_2_X
printf(" -offset [-]<pixel offset of \"to\">\n");
printf("WIN_2_X build allows Windows or X as -from display\n");
printf("Note that -fromwin sets default to -big -west -capslockhack\n");
printf("A Windows shortcut of the form:\n");
printf("C:\\cygwin\\usr\\X11R6\\bin\\run.exe /usr/X11R6/bin/x2x -fromwin -to <to> -east\n");
printf("Should work to start the app from the desktop or start menu, but\n");
printf("c:\\cygwin\\bin may need to be added to the PATH to get cygwin1.dll\n");
#endif
exit(4);
} /* END Usage */
/**********
* call the library to check for the test extension
**********/
static Bool CheckTestExtension(dpy)
Display *dpy;
{
int eventb, errorb;
int vmajor, vminor;
return (XTestQueryExtension(dpy, &eventb, &errorb, &vmajor, &vminor));
} /* END CheckTestExtension */
#ifndef WIN_2_X
int ErrorHandler(Display *disp, XErrorEvent *event) {
int bufflen = 1024;
char *buff;
buff = malloc(bufflen);
XGetErrorText(disp,event->error_code,buff,bufflen);
debug("x2x:ErrHandler(): Display:`%s` \t error_code:`%i` \n",
XDisplayName(NULL),event->error_code);
printf(" %s \n",buff);
free(buff);
return True;
}
#endif
#define X2X_DISCONNECTED 0
#define X2X_AWAIT_RELEASE 1
#define X2X_CONNECTED 2
#define X2X_CONN_RELEASE 3
static void DoX2X(fromDpy, toDpy)
Display *fromDpy;
Display *toDpy;
{
DPYINFO dpyInfo;
int nfds;
fd_set fdset;
Bool fromPending;
int fromConn, toConn;
/* set up displays */
dpyInfo.fromDpy = fromDpy;
dpyInfo.toDpy = toDpy;
InitDpyInfo(&dpyInfo);
RegisterEventHandlers(&dpyInfo);
/* set up for select */
#ifdef WIN_2_X
fromConn = (fromDpy == fromWin) ? 0 : XConnectionNumber(fromDpy);
#else
fromConn = XConnectionNumber(fromDpy);
#endif /* WIN_2_X */
toConn = XConnectionNumber(toDpy);
nfds = (fromConn > toConn ? fromConn : toConn) + 1;
#ifdef WIN_2_X
if (fromDpy == fromWin) {
MSG msg; /* A Win32 message structure. */
int nowQuit;
nowQuit = 0;
/* XXX mdh - This is not quite right becaue it only does To events */
/* XXX mdh - when there are From events */
/* This is mostly ok, but can cause windows->X paste to take a while */
/* As a compromise, try a 1 second tick to cause polling */
SetTimer(dpyInfo.bigwindow, 1, 1000 /* in ms */, NULL);
/* GetMessage blocks until the next Windows event */
/* It returns 0 if the app should quit */
while (!nowQuit && GetMessage (&msg, NULL, 0, 0)) {
/* XXX mdh - Translate may not be needed if all Key processing is */
/* XXX mdh - done using the Key events rather than CHAR events */
TranslateMessage (&msg);
DispatchMessage (&msg);
/* Done a Windows event, now loop while -to has something */
while (XPending(toDpy) || dpyInfo.expectSelNotify) {
if (ProcessEvent(toDpy, &dpyInfo)) { /* done! */
nowQuit = 1;
break;
}
/* PeekMessage is a non-blocking version of GetMessage */
/* But it returns 0 for no messages rather than for quit */
if (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) {
/* need explicit check for quit */
if (msg.message == WM_QUIT) {
nowQuit = 1;
break; /* from the while(XPending... )*/
}
/* XXX mdh - see above */
TranslateMessage (&msg);
DispatchMessage (&msg);
}
}
}
} else
/* Again, the else qualifies the while below */
#endif /* WIN_2_X */
while (True) { /* FOREVER */
if ((fromPending = XPending(fromDpy)))
if (ProcessEvent(fromDpy, &dpyInfo)) /* done! */
break;
if (XPending(toDpy)) {
if (ProcessEvent(toDpy, &dpyInfo)) /* done! */
break;
} else if (!fromPending) {
FD_ZERO(&fdset);
FD_SET(fromConn, &fdset);
FD_SET(toConn, &fdset);
select(nfds, &fdset, NULL, NULL, NULL);
}
} /* END FOREVER */
} /* END DoX2X() */
static void InitDpyInfo(pDpyInfo)
PDPYINFO pDpyInfo;
{
Display *fromDpy, *toDpy;
Screen *fromScreen;
long black, white;
int fromHeight, fromWidth, toHeight, toWidth;
Pixmap nullPixmap;
XColor dummyColor;
Window root, trigger, big, rret, toRoot, propWin;
short *xTable, *yTable; /* short: what about dimensions > 2^15? */
int *heights, *widths;
int counter;
int nScreens, screenNum;
int twidth, theight, tascent; /* text dimensions */
int xoff, yoff; /* window offsets */
unsigned int width, height; /* window width, height */
int geomMask; /* mask returned by parse */
int gravMask;
int gravity;
int xret, yret;
unsigned int wret, hret, bret, dret;
XSetWindowAttributes xswa;
XSizeHints *xsh;
int eventMask;
GC textGC;
char *windowName;
Font fid;
PSHADOW pShadow;
int triggerLoc;
Bool vertical;
/* cache commonly used variables */
fromDpy = pDpyInfo->fromDpy;
toDpy = pDpyInfo->toDpy;
pDpyInfo->toDpyXtra.propWin = (Window) 0;
gravity = NorthWestGravity; /* Default gravity of window. */
pDpyInfo->fid = 0; /* Default is no text. */
#ifdef WIN_2_X
pDpyInfo->unreasonableCount = 0;
if (fromDpy == fromWin) {
fromWidth=GetSystemMetrics(SM_CXSCREEN);
fromHeight=GetSystemMetrics(SM_CYSCREEN);
POINT pt;
pDpyInfo->screenRect.left = GetSystemMetrics(SM_XVIRTUALSCREEN);
pDpyInfo->screenRect.top = GetSystemMetrics(SM_YVIRTUALSCREEN);
pDpyInfo->screenRect.right = GetSystemMetrics(SM_CXVIRTUALSCREEN);
pDpyInfo->screenRect.bottom = GetSystemMetrics(SM_CYVIRTUALSCREEN);
pDpyInfo->screenHeight = pDpyInfo->screenRect.bottom - pDpyInfo->screenRect.top;
pDpyInfo->screenWidth = pDpyInfo->screenRect.right - pDpyInfo->screenRect.left;
// Guess a a point at or near the monitor we want.
if (doEdge == EDGE_NORTH || doEdge == EDGE_SOUTH)
{
pt.x = (pDpyInfo->screenRect.right - pDpyInfo->screenRect.left) / 2;
pt.y = (doEdge == EDGE_SOUTH) ? pDpyInfo->screenRect.bottom - 1 : pDpyInfo->screenRect.top;;
}
else
{
pt.x = (doEdge == EDGE_EAST) ? pDpyInfo->screenRect.right - 1 : pDpyInfo->screenRect.left;
pt.y = (pDpyInfo->screenRect.bottom - pDpyInfo->screenRect.top) / 2;
}
HMONITOR mon = MonitorFromPoint(pt, MONITOR_DEFAULTTONEAREST);
MONITORINFO monInfo;
monInfo.cbSize = sizeof(MONITORINFO);
GetMonitorInfo(mon, &monInfo);
pDpyInfo->monitorRect = monInfo.rcMonitor;
/* these should not be used, but keep compiler happy */
fromScreen = (Screen *) 0;
black = white = 0;
root = pDpyInfo->root = None;
} else {
fromScreen = XDefaultScreenOfDisplay(fromDpy);
black = XBlackPixelOfScreen(fromScreen);
white = XWhitePixelOfScreen(fromScreen);
fromHeight = XHeightOfScreen(fromScreen);
fromWidth = XWidthOfScreen(fromScreen);
root = pDpyInfo->root = XDefaultRootWindow(fromDpy);
}
toRoot = XDefaultRootWindow(toDpy);
nScreens = pDpyInfo->nScreens = XScreenCount(toDpy);
vertical = pDpyInfo->vertical = (doEdge == EDGE_NORTH
|| doEdge == EDGE_SOUTH);
#else
fromScreen = XDefaultScreenOfDisplay(fromDpy);
black = XBlackPixelOfScreen(fromScreen);
white = XWhitePixelOfScreen(fromScreen);
fromHeight = XHeightOfScreen(fromScreen);
fromWidth = XWidthOfScreen(fromScreen);
toRoot = XDefaultRootWindow(toDpy);
/* values also in dpyinfo */
root = pDpyInfo->root = XDefaultRootWindow(fromDpy);
nScreens = pDpyInfo->nScreens = XScreenCount(toDpy);
vertical = pDpyInfo->vertical = (doEdge == EDGE_NORTH
|| doEdge == EDGE_SOUTH);
#endif
#ifdef WIN_2_X
if (fromDpy != fromWin) {
#endif
pDpyInfo->fromDpyUtf8String = XInternAtom(fromDpy, UTF8_STRING, False);
pDpyInfo->fromDpyTargets = XInternAtom(fromDpy, "TARGETS", False);