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uwm.c
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uwm.c
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/* $XConsortium: uwm.c,v 1.23 88/11/16 09:41:32 jim Exp $ */
/*
* Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
*
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of Digital Equipment
* Corporation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
*
*
* DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
/* $XConsortium: copyright.h,v 1.5 89/12/22 16:11:28 rws Exp $ */
/*
Copyright 1985, 1986, 1987, 1988, 1989 by the
Massachusetts Institute of Technology
Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation, and that the name of M.I.T. not be used in advertising or
publicity pertaining to distribution of the software without specific,
written prior permission. M.I.T. makes no representations about the
suitability of this software for any purpose. It is provided "as is"
without express or implied warranty.
*/
/*
* MODIFICATION HISTORY
*
* 000 -- M. Gancarz, DEC Ultrix Engineering Group
* 001 -- Loretta Guarino Reid, DEC Ultrix Engineering Group,
* Western Software Lab. Convert to X11.
*/
#ifndef lint
static char *sccsid = "%W% %G%";
#endif
char *ProgramName;
#include "uwm.h"
#include <ctype.h>
#include <stdlib.h> /* 2016.05.21 cxd4 -- malloc(), free(), exit() */
#include <X11/Xproto.h>
#ifdef PROFIL
#include <signal.h>
/*
* Dummy handler for profiling.
*/
ptrap()
{
exit(0);
}
#endif
#define gray_width 16
#define gray_height 16
static char gray_bits[] = {
0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa,
0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa,
0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa,
0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa
};
Bool NeedRootInput=FALSE;
Bool ChkMline();
char *sfilename;
extern FILE *yyin;
/*
* Main program.
*/
main(argc, argv, environ)
int argc;
char **argv;
char **environ;
{
int hi; /* Button event high detail. */
int lo; /* Button event low detail. */
int x, y; /* Mouse X and Y coordinates. */
int root_x, root_y; /* Mouse root X and Y coordinates. */
int cur_x, cur_y; /* Current mouse X and Y coordinates. */
int down_x, down_y; /* mouse X and Y at ButtonPress. */
int str_width; /* Width in pixels of output string. */
int pop_width, pop_height; /* Pop up window width and height. */
int context; /* Root, window, or icon context. */
int ptrmask; /* for QueryPointer */
Bool func_stat; /* If true, function swallowed a ButtonUp. */
Bool delta_done; /* If true, then delta functions are done. */
Bool local = FALSE; /* If true, then do not use system defaults. */
register Binding *bptr; /* Pointer to Bindings list. */
char *root_name; /* Root window name. */
char *display = NULL; /* Display name pointer. */
char message[128]; /* Error message buffer. */
char *rc_file; /* Pointer to $HOME/.uwmrc. */
Window event_win; /* Event window. */
Window sub_win; /* Subwindow for XUpdateMouse calls. */
Window root; /* Root window for QueryPointer. */
XWindowAttributes event_info; /* Event window info. */
XEvent button_event; /* Button input event. */
GC gc; /* graphics context for gray background */
GC default_GC; /* 2016.05.21 cxd4 */
XID font_ID; /* 2016.05.21 cxd4 */
XImage grayimage; /* for gray background */
XGCValues xgc; /* to create font GCs */
Bool fallbackMFont = False, /* using default GC font for menus, */
fallbackPFont = False, /* popups, */
fallbackIFont = False; /* icons */
XSetWindowAttributes attr; /* for setting save under flag */
unsigned long whitepix, blackpix, borderpix, popborderpix;
ProgramName = argv[0];
#ifdef PROFIL
signal(SIGTERM, ptrap);
#endif
/*
* Set up internal defaults.
*/
SetVarDefaults();
/*
* Parse the command line arguments.
*/
Argv = argv;
Environ = environ;
argc--, argv++;
while (argc) {
if (**argv == '-') {
if (strcmp(*argv, "-display") == 0 || strcmp(*argv, "-d") == 0) {
argc--, argv++;
if (argc <= 0)
Usage ();
display = *argv;
} else if (strcmp(*argv, "-f") == 0) {
argc--, argv++;
if ((argc == 0) || (Startup_File[0] != '\0'))
Usage();
strncpy(Startup_File, *argv, NAME_LEN);
} else if (strcmp(*argv, "-b") == 0)
local = TRUE;
else
Usage();
} else
Usage ();
argc--, argv++;
}
/*
* Initialize the default bindings.
*/
if (!local)
InitBindings();
/*
* Open the display.
*/
if ((dpy = XOpenDisplay(display)) == NULL)
Error("Unable to open display");
scr = DefaultScreen(dpy);
SetEnvironment ();
LoadXDefaults ();
/*
* Set XErrorFunction to be non-terminating.
*/
XSetErrorHandler(XError);
/*
* Force child processes to disinherit the TCP file descriptor.
* This helps shell commands forked and exec'ed from menus
* to work properly.
*/
if ((status = fcntl(ConnectionNumber(dpy), F_SETFD, 1)) == -1) {
perror("uwm: child cannot disinherit TCP fd");
Error("TCP file descriptor problems");
}
/*
* Read in and parse $HOME/.uwmrc, if it exists.
*/
sfilename = rc_file = malloc(NAME_LEN);
sprintf(rc_file, "%s/.uwmrc", getenv("HOME"));
if ((yyin = fopen(rc_file, "r")) != NULL) {
Lineno = 1;
yyparse();
fclose(yyin);
if (Startup_File_Error)
Error("Bad .uwmrc file...aborting");
}
/*
* Read in and parse the startup file from the command line, if
* specified.
*/
if (Startup_File[0] != '\0') {
sfilename = Startup_File;
if ((yyin = fopen(Startup_File, "r")) == NULL) {
sprintf(message, "Cannot open startup file '%s'", Startup_File);
Error(message);
}
Lineno = 1;
yyparse();
fclose(yyin);
if (Startup_File_Error)
Error("Bad startup file...aborting");
}
/*
* Verify the menu bindings.
*/
VerifyMenuBindings();
if (Startup_File_Error)
Error("Bad startup file...aborting");
/*
* Verify the menu variables.
*/
VerifyMenuVariables();
/*
* If the root window has not been named, name it.
*/
status = XFetchName(dpy, RootWindow(dpy, scr), &root_name);
if (root_name == NULL)
XStoreName(dpy, RootWindow(dpy, scr), " X Root Window ");
else free(root_name);
ScreenHeight = DisplayHeight(dpy, scr);
ScreenWidth = DisplayWidth(dpy, scr);
/*
* set the default colors
*/
{
Bool whiteset = False, blackset = False, borderset = False;
Colormap cmap = DefaultColormap (dpy, scr);
XColor cdef;
/*
* the model is foreground = black, background = white
*/
if (DisplayCells (dpy, scr) > 2) {
if (PBackgroundName[0]) {
if (XParseColor (dpy, cmap, PBackgroundName, &cdef) &&
XAllocColor (dpy, cmap, &cdef)) {
whitepix = cdef.pixel;
whiteset = True;
}
}
if (PForegroundName[0]) {
if (XParseColor (dpy, cmap, PForegroundName, &cdef) &&
XAllocColor (dpy, cmap, &cdef)) {
blackpix = cdef.pixel;
blackset = True;
}
}
if (PBorderColor[0]) {
if (XParseColor (dpy, cmap, PBorderColor, &cdef) &&
XAllocColor (dpy, cmap, &cdef)) {
borderpix = cdef.pixel;
borderset = True;
}
}
}
if (!whiteset) whitepix = WhitePixel (dpy, scr);
if (!blackset) blackpix = BlackPixel (dpy, scr);
if (!borderset) borderpix = blackpix;
}
/*
* Create and store the icon background pixmap.
*/
GrayPixmap = (Pixmap)XCreatePixmap(dpy, RootWindow(dpy, scr),
gray_width, gray_height, DefaultDepth(dpy,scr));
xgc.foreground = blackpix;
xgc.background = whitepix;
gc = XCreateGC(dpy, GrayPixmap, GCForeground+GCBackground, &xgc);
grayimage.height = gray_width;
grayimage.width = gray_height;
grayimage.xoffset = 0;
grayimage.format = XYBitmap;
grayimage.data = (char *)gray_bits;
grayimage.byte_order = LSBFirst;
grayimage.bitmap_unit = 8;
grayimage.bitmap_bit_order = LSBFirst;
grayimage.bitmap_pad = 16;
grayimage.bytes_per_line = 2;
grayimage.depth = 1;
XPutImage(dpy, GrayPixmap, gc, &grayimage, 0, 0,
0, 0, gray_width, gray_height);
XFreeGC(dpy, gc);
/*
* Set up icon window, icon cursor and pop-up window color parameters.
* The world needs to be consistent, so we choose a default of black on
* white. Note that this means that sizing windows will look "backwards"
* from what they used to be.
*/
if (Reverse) {
PBackground = MBackground = blackpix;
ITextBackground = MTextBackground = PTextBackground = blackpix;
ITextForeground = MTextForeground = PTextForeground = whitepix;
} else {
PBackground = MBackground = whitepix;
ITextBackground = MTextBackground = PTextBackground = whitepix;
ITextForeground = MTextForeground = PTextForeground = blackpix;
}
IBackground = GrayPixmap;
IBorder = MBorder = PBorder = borderpix;
/*
* Store all the cursors.
*/
StoreCursors();
/*
* grab the mouse buttons according to the map structure
*/
Grab_Buttons();
/*
* Set initial focus to PointerRoot.
*/
XSetInputFocus(dpy, PointerRoot, None, CurrentTime);
/*
* register an interest for colormap tracking
*/
{
Window root_return, parent_return, *children_return;
int nchildren_return;
initColormap ();
/*
* watch for initial window mapping and window destruction
*/
x_error_occurred = FALSE;
(void) uwmExpressInterest (RootWindow (dpy, scr),
SubstructureNotifyMask|SubstructureRedirectMask|FocusChangeMask|
(NeedRootInput ? EVENTMASK|OwnerGrabButtonMask : 0));
XSync (dpy, 0);
if (x_error_occurred &&
last_error_event.request_code == X_ChangeWindowAttributes &&
last_error_event.error_code == BadAccess) {
Error("can't select for root window events; is another window manager running?");
}
/*
* discover existing windows
*/
if (XQueryTree (dpy, RootWindow(dpy, scr), &root_return,
&parent_return, &children_return, &nchildren_return)) {
int i;
for (i = 0; i < nchildren_return; i++)
(void) getWindowInfo (children_return[i]);
}
}
/*
* Retrieve the information structure for the specifed fonts and
* set the global font information pointers.
*/
default_GC = DefaultGC(dpy, scr);
#if 0
font_ID = (default_GC -> gid);
#else
font_ID = 0;
fprintf(
stderr,
"Modern X11 build of uwm needs to invoke XQueryFont differently.\n"\
"DefaultGC(%p, %p) = %p\n", dpy, scr, default_GC
);
#endif
IFontInfo = XLoadQueryFont(dpy, IFontName);
if (IFontInfo == NULL) {
fprintf(stderr, "uwm: Unable to open icon font '%s', using server default.\n",
IFontName);
IFontInfo = XQueryFont(dpy, font_ID);
fallbackIFont = True;
}
PFontInfo = XLoadQueryFont(dpy, PFontName);
if (PFontInfo == NULL) {
fprintf(stderr, "uwm: Unable to open resize font '%s', using server default.\n",
PFontName);
if (fallbackIFont)
PFontInfo = IFontInfo;
else
PFontInfo = XQueryFont(dpy, font_ID);
fallbackPFont = True;
}
MFontInfo = XLoadQueryFont(dpy, MFontName);
if (MFontInfo == NULL) {
fprintf(stderr, "uwm: Unable to open menu font '%s', using server default.\n",
MFontName);
if (fallbackIFont || fallbackPFont)
MFontInfo = fallbackPFont ? PFontInfo : IFontInfo;
else
MFontInfo = XQueryFont(dpy, font_ID);
fallbackMFont = True;
}
/*
* Calculate size of the resize pop-up window.
*/
str_width = XTextWidth(PFontInfo, PText, strlen(PText));
pop_width = str_width + (PPadding << 1);
PWidth = pop_width + (PBorderWidth << 1);
pop_height = PFontInfo->ascent + PFontInfo->descent + (PPadding << 1);
PHeight = pop_height + (PBorderWidth << 1);
/*
* Create the pop-up window. Create it at (0, 0) for now. We will
* move it where we want later.
*/
Pop = XCreateSimpleWindow(dpy, RootWindow(dpy, scr),
0, 0,
pop_width, pop_height,
PBorderWidth,
PBorder, PBackground);
if (Pop == FAILURE) Error("Can't create pop-up dimension display window.");
attr.save_under = True;
XChangeWindowAttributes (dpy, Pop, CWSaveUnder, &attr);
/*
* Create the menus for later use.
*/
CreateMenus();
/*
* Create graphics context.
*/
xgc.foreground = ITextForeground;
xgc.background = ITextBackground;
xgc.font = IFontInfo->fid;
xgc.graphics_exposures = FALSE;
IconGC = XCreateGC(dpy,
RootWindow(dpy, scr),
GCForeground+GCBackground+GCGraphicsExposures
+(fallbackIFont ? 0 : GCFont), &xgc);
xgc.foreground = MTextForeground;
xgc.background = MTextBackground;
xgc.font = MFontInfo->fid;
MenuGC = XCreateGC(dpy,
RootWindow(dpy, scr),
GCForeground+GCBackground+(fallbackMFont ? 0 : GCFont), &xgc);
xgc.function = GXinvert;
xgc.plane_mask = MTextForeground ^ MTextBackground;
MenuInvGC = XCreateGC(dpy,
RootWindow(dpy, scr), GCForeground+GCFunction+GCPlaneMask, &xgc);
xgc.foreground = PTextForeground;
xgc.background = PTextBackground;
xgc.font = PFontInfo->fid;
PopGC = XCreateGC(dpy,
RootWindow(dpy, scr),
GCForeground+GCBackground+(fallbackPFont ? 0 : GCFont), &xgc);
xgc.line_width = DRAW_WIDTH;
xgc.foreground = DRAW_VALUE;
xgc.function = DRAW_FUNC;
xgc.subwindow_mode = IncludeInferiors;
DrawGC = XCreateGC(dpy, RootWindow(dpy, scr),
GCLineWidth+GCForeground+GCFunction+GCSubwindowMode, &xgc);
/*
* Tell the user we're alive and well.
*/
XBell(dpy, VOLUME_PERCENTAGE(Volume));
/*
* Main command loop.
*/
while (TRUE) {
delta_done = func_stat = FALSE;
/*
* Get the next mouse button event. Spin our wheels until
* a ButtonPressed event is returned.
* Note that mouse events within an icon window are handled
* in the "GetButton" function or by the icon's owner if
* it is not uwm.
*/
while (TRUE) {
if (!GetButton(&button_event)) continue;
if (button_event.type == ButtonPress) break;
}
/* save mouse coords in case we want them later for a delta action */
down_x = ((XButtonPressedEvent *)&button_event)->x;
down_y = ((XButtonPressedEvent *)&button_event)->y;
/*
* Okay, determine the event window and mouse coordinates.
*/
status = XTranslateCoordinates(dpy,
RootWindow(dpy, scr), RootWindow(dpy, scr),
((XButtonPressedEvent *)&button_event)->x,
((XButtonPressedEvent *)&button_event)->y,
&x, &y,
&event_win);
if (status == FAILURE) continue;
/*
* Determine the event window and context.
*/
if (event_win == 0) {
event_win = RootWindow(dpy, scr);
context = ROOT;
} else {
if (IsIcon(event_win, 0, 0, FALSE, NULL))
context = ICON;
else context = WINDOW;
}
/*
* Get the button event detail.
*/
lo = ((XButtonPressedEvent *)&button_event)->button;
hi = ((XButtonPressedEvent *)&button_event)->state;
/*
* Determine which function was selected and invoke it.
*/
for(bptr = Blist; bptr; bptr = bptr->next) {
if ((bptr->button != lo) ||
(((int)bptr->mask & ModMask) != hi))
continue;
if (bptr->context != context)
continue;
if (!(bptr->mask & ButtonDown))
continue;
/*
* Found a match! Invoke the function.
*/
if ((*bptr->func)(event_win,
(int)bptr->mask & ModMask,
bptr->button,
x, y,
bptr->menu)) {
func_stat = TRUE;
break;
}
}
/*
* If the function ate the ButtonUp event, then restart the loop.
*/
if (func_stat) continue;
while(TRUE) {
/*
* Wait for the next button event.
*/
if (XPending(dpy) && GetButton(&button_event)) {
/*
* If it's not a release of the same button that was pressed,
* don't do the function bound to 'ButtonUp'.
*/
if (button_event.type != ButtonRelease)
break;
if (lo != ((XButtonReleasedEvent *)&button_event)->button)
break;
if ((hi|ButtonMask(lo)) !=
((XButtonReleasedEvent *)&button_event)->state)
break;
/*
* Okay, determine the event window and mouse coordinates.
*/
status = XTranslateCoordinates(dpy,
RootWindow(dpy, scr), RootWindow(dpy, scr),
((XButtonReleasedEvent *)&button_event)->x,
((XButtonReleasedEvent *)&button_event)->y,
&x, &y,
&event_win);
if (status == FAILURE) break;
if (event_win == 0) {
event_win = RootWindow(dpy, scr);
context = ROOT;
} else {
if (IsIcon(event_win, 0, 0, FALSE, NULL))
context = ICON;
else context = WINDOW;
}
/*
* Determine which function was selected and invoke it.
*/
for(bptr = Blist; bptr; bptr = bptr->next) {
if ((bptr->button != lo) ||
(((int)bptr->mask & ModMask) != hi))
continue;
if (bptr->context != context)
continue;
if (!(bptr->mask & ButtonUp))
continue;
/*
* Found a match! Invoke the function.
*/
(*bptr->func)(event_win,
(int)bptr->mask & ModMask,
bptr->button,
x, y,
bptr->menu);
}
break;
}
XQueryPointer(dpy, RootWindow(dpy, scr),
&root, &event_win, &root_x, &root_y, &cur_x, &cur_y, &ptrmask);
if (!delta_done &&
((abs(cur_x - x) > Delta) || (abs(cur_y - y) > Delta))) {
/*
* Delta functions are done once (and only once.)
*/
delta_done = TRUE;
/*
* Determine the new event window's coordinates.
* from the original ButtonPress event
*/
status = XTranslateCoordinates(dpy,
RootWindow(dpy, scr), RootWindow(dpy, scr),
down_x, down_y, &x, &y, &event_win);
if (status == FAILURE) break;
/*
* Determine the event window and context.
*/
if (event_win == 0) {
event_win = RootWindow(dpy, scr);
context = ROOT;
} else {
if (IsIcon(event_win, 0, 0, FALSE, NULL))
context = ICON;
else context = WINDOW;
}
/*
* Determine which function was selected and invoke it.
*/
for(bptr = Blist; bptr; bptr = bptr->next) {
if ((bptr->button != lo) ||
(((int)bptr->mask & ModMask) != hi))
continue;
if (bptr->context != context)
continue;
if (!(bptr->mask & DeltaMotion))
continue;
/*
* Found a match! Invoke the function.
*/
if ((*bptr->func)(event_win,
(int)bptr->mask & ModMask,
bptr->button,
x, y,
bptr->menu)) {
func_stat = TRUE;
break;
}
}
/*
* If the function ate the ButtonUp event,
* then restart the loop.
*/
if (func_stat) break;
}
}
}
}
/*
* Initialize the default bindings. First, write the character array
* out to a temp file, then point the parser to it and read it in.
* Afterwards, we unlink the temp file.
*/
InitBindings()
{
char *mktemp();
char *tempfile; /* Temporary filename. */
register FILE *fp; /* Temporary file pointer. */
register char **ptr; /* Default bindings string array pointer. */
/*
* Create and write the temp file.
*/
tempfile = malloc (strlen (TEMPFILE) + 1);
if (!tempfile) {
perror("uwm: cannot allocate name for temp file");
exit (1);
}
strcpy (tempfile, TEMPFILE);
sfilename = mktemp(tempfile);
if ((fp = fopen(tempfile, "w")) == NULL) {
perror("uwm: cannot create temp file");
exit(1);
}
for (ptr = DefaultBindings; *ptr; ptr++) {
fputs(*ptr, fp);
fputc('\n', fp);
}
fclose(fp);
/*
* Read in the bindings from the temp file and parse them.
*/
if ((yyin = fopen(tempfile, "r")) == NULL) {
perror("uwm: cannot open temp file");
exit(1);
}
Lineno = 1;
yyparse();
fclose(yyin);
unlink(tempfile);
if (Startup_File_Error)
Error("Bad default bindings...aborting");
/*
* Parse the system startup file, if one exists.
*/
if ((yyin = fopen(SYSFILE, "r")) != NULL) {
sfilename = SYSFILE;
Lineno = 1;
yyparse();
fclose(yyin);
if (Startup_File_Error)
Error("Bad system startup file...aborting");
}
}
/*
* Verify menu bindings by checking that a menu that is mapped actually
* exists. Stash a pointer in the binding to the relevant menu info data
* structure.
* Check nested menu consistency.
*/
VerifyMenuBindings()
{
Binding *bptr;
MenuLink *mptr;
for(bptr = Blist; bptr; bptr = bptr->next) {
if (bptr->func == Menu) {
for(mptr = Menus; mptr; mptr = mptr->next) {
if(!(strcmp(bptr->menuname, mptr->menu->name))) {
bptr->menu = mptr->menu;
break;
}
}
if (mptr == NULL) {
fprintf(stderr,
"uwm: non-existent menu reference: \"%s\"\n",
bptr->menuname);
Startup_File_Error = TRUE;
}
}
}
CheckMenus();
}
/*
* Verify that the menu variables have reasonable values
*/
VerifyMenuVariables()
{
/*
* If we pushrelative, we divide the window size by
* the push variable. If it's zero, we die a sad death.
* So lets use the default push value in this case.
*/
if (!Pushval && Push) Pushval = DEF_PUSH;
}
/*
* Check nested menu consistency by verifying that every menu line that
* calls another menu references a menu that actually exists.
*/
CheckMenus()
{
MenuLink *ptr;
Bool errflag = FALSE;
for(ptr = Menus; ptr; ptr = ptr->next) {
if (ChkMline(ptr->menu))
errflag = TRUE;
}
if (errflag)
Error("Nested menu inconsistency");
}
Bool ChkMline(menu)
MenuInfo *menu;
{
MenuLine *ptr;
MenuLink *lptr;
Bool errflag = FALSE;
for(ptr = menu->line; ptr; ptr = ptr->next) {
if (ptr->type == IsMenuFunction) {
for(lptr = Menus; lptr; lptr = lptr->next) {
if(!(strcmp(ptr->text, lptr->menu->name))) {
ptr->menu = lptr->menu;
break;
}
}
if (lptr == NULL) {
fprintf(stderr,
"uwm: non-existent menu reference: \"%s\"\n",
ptr->text);
errflag = TRUE;
}
}
}
return(errflag);
}
/*
* Grab the mouse buttons according to the bindings list.
*/
Grab_Buttons()
{
Binding *bptr;
for(bptr = Blist; bptr; bptr = bptr->next)
if ((bptr->context & (WINDOW | ICON | ROOT)) == ROOT) {
/* don't grab buttons if you don't have to - allow application
access to buttons unless context includes window or icon */
NeedRootInput = TRUE;
}
else {
/* context includes a window, so must grab */
Grab(bptr->mask);
}
}
/*
* Grab a mouse button according to the given mask.
*/
Grab(mask)
unsigned int mask;
{
unsigned int m = LeftMask | MiddleMask | RightMask;
switch (mask & m) {
case LeftMask:
XGrabButton(dpy, LeftButton, mask & ModMask,
RootWindow(dpy, scr), TRUE, EVENTMASK,
GrabModeAsync, GrabModeAsync, None, LeftButtonCursor);
break;
case MiddleMask:
XGrabButton(dpy, MiddleButton, mask & ModMask,
RootWindow(dpy, scr), TRUE, EVENTMASK,
GrabModeAsync, GrabModeAsync, None, MiddleButtonCursor);
break;
case RightMask:
XGrabButton(dpy, RightButton, mask & ModMask,
RootWindow(dpy, scr), TRUE, EVENTMASK,
GrabModeAsync, GrabModeAsync, None, RightButtonCursor);
break;
}
}
/*
* Restore cursor to normal state.
*/
ResetCursor(button)
int button;
{
switch (button) {
case LeftButton:
XChangeActivePointerGrab(
dpy, EVENTMASK, LeftButtonCursor, CurrentTime);
break;
case MiddleButton:
XChangeActivePointerGrab(
dpy, EVENTMASK, MiddleButtonCursor, CurrentTime);
break;
case RightButton:
XChangeActivePointerGrab(
dpy, EVENTMASK, RightButtonCursor, CurrentTime);
break;
}
}
/*
* error routine for .uwmrc parser
*/
yyerror(s)
char*s;
{
fprintf(stderr, "uwm: %s: %d: %s\n", sfilename, Lineno, s);
Startup_File_Error = TRUE;
}
/*
* Print usage message and quit.
*/
Usage()
{
fprintf (stderr,
"usage: %s [-display host:dpy] [-b] [-f filename]\n\n",
Argv[0]);
fputs("The -b option bypasses system and default bindings\n", stderr);
fputs("The -f option specifies an additional startup file\n", stderr);
exit(1);
}
/*
* error handler for X I/O errors
*/
XIOError(dsp)
Display *dsp;
{
perror("uwm");
exit(3);
}
SetVarDefaults()
{
strcpy(IFontName, DEF_FONT);
strcpy(PFontName, DEF_FONT);
strcpy(MFontName, DEF_FONT);
Delta = DEF_DELTA;
IBorderWidth = DEF_ICON_BORDER_WIDTH;
HIconPad = DEF_ICON_PADDING;
VIconPad = DEF_ICON_PADDING;
PBorderWidth = DEF_POP_BORDER_WIDTH;
PPadding = DEF_POP_PADDING;
MBorderWidth = DEF_MENU_BORDER_WIDTH;
HMenuPad = DEF_MENU_PADDING;
VMenuPad = DEF_MENU_PADDING;
Volume = DEF_VOLUME;
Pushval = DEF_PUSH;
FocusSetByUser = FALSE;
PBackgroundName[0] = '\0'; /* so that default is computed */
PForegroundName[0] = '\0'; /* so that default is computed */
PBorderColor[0] = '\0'; /* so that default is computed */
}
static char *get_default (d, prog, name)
Display *d;
char *prog;
char *name;
{
char *option;