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dockapps/wmbiff/wmgeneral/wmgeneral.c
Jeremy Sowden a09edcda9e Fix multiple definitions of display variable. 
The display variable is declared in a header with no explicit linkage.
This results in there being multiple definitions of it in wmbiff.o and
libwmgeneral.a and a failure during linking with gcc 10.

Add `extern` to the header declaration and a separate declaration with no
linkage in wmgeneral.c where it is assigned.

Link: https://bugs.debian.org/957937
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
2020-04-17 17:56:31 +01:00

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/*
Best viewed with vim5, using ts=4
wmgeneral was taken from wmppp.
It has a lot of routines which most of the wm* programs use.
------------------------------------------------------------
Author: Martijn Pieterse (pieterse@xs4all.nl)
---
CHANGES:
---
14/09/1998 (Dave Clark, clarkd@skyia.com)
* Updated createXBMfromXPM routine
* Now supports >256 colors
11/09/1998 (Martijn Pieterse, pieterse@xs4all.nl)
* Removed a bug from parse_rcfile. You could
not use "start" in a command if a label was
also start.
* Changed the needed geometry string.
We don't use window size, and don't support
negative positions.
03/09/1998 (Martijn Pieterse, pieterse@xs4all.nl)
* Added parse_rcfile2
02/09/1998 (Martijn Pieterse, pieterse@xs4all.nl)
* Added -geometry support (untested)
28/08/1998 (Martijn Pieterse, pieterse@xs4all.nl)
* Added createXBMfromXPM routine
* Saves a lot of work with changing xpm's.
02/05/1998 (Martijn Pieterse, pieterse@xs4all.nl)
* changed the read_rc_file to parse_rcfile, as suggested by Marcelo E. Magallon
* debugged the parse_rc file.
30/04/1998 (Martijn Pieterse, pieterse@xs4all.nl)
* Ripped similar code from all the wm* programs,
and put them in a single file.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <stdarg.h>
#include <assert.h>
#include <X11/Xlib.h>
#ifdef HAVE_X11_XPM_H
#include <X11/xpm.h>
#endif
#ifdef HAVE_XPM_H
#include <xpm.h>
#endif
#include <X11/Xutil.h> /* needed for Region on solaris? */
#include <X11/extensions/shape.h>
#include "wmgeneral.h"
/*****************/
/* X11 Variables */
/*****************/
Display *display;
Window Root;
int screen;
int x_fd;
int d_depth;
XSizeHints mysizehints;
XWMHints mywmhints;
Pixel back_pix, fore_pix;
// static const char *Geometry = "";
Window iconwin, win;
GC NormalGC;
XpmIcon wmgen_bkg;
XpmIcon wmgen_src;
Pixmap pixmask;
/*****************/
/* Mouse Regions */
/*****************/
typedef struct {
int enable;
int top;
int bottom;
int left;
int right;
} MOUSE_REGION;
MOUSE_REGION mouse_region[MAX_MOUSE_REGION];
/***********************/
/* Function Prototypes */
/***********************/
static void GetXPM(XpmIcon *, const char **);
Pixel GetColor(const char *);
void RedrawWindow(void);
int CheckMouseRegion(int, int);
/*******************************************************************************\
|* parse_rcfile *|
\*******************************************************************************/
void parse_rcfile(const char *filename, rckeys * keys)
{
char *p, *q;
char temp[128];
const char *tokens = " :\t\n";
FILE *fp;
int i, key;
fp = fopen(filename, "r");
if (fp) {
while (fgets(temp, 128, fp)) {
key = 0;
char *t = strdup(temp);
q = strtok(t, tokens);
while (key >= 0 && keys[key].label) {
if ((!strcmp(q, keys[key].label))) {
p = strstr(temp, keys[key].label);
p += strlen(keys[key].label);
p += strspn(p, tokens);
if ((i = strcspn(p, "#\n")))
p[i] = 0;
free(*keys[key].var);
*keys[key].var = strdup(p);
key = -1;
} else
key++;
}
free(t);
}
fclose(fp);
}
}
/*******************************************************************************\
|* parse_rcfile2 *|
\*******************************************************************************/
void parse_rcfile2(const char *filename, rckeys2 * keys)
{
char *p;
char temp[128];
const char *tokens = " :\t\n";
FILE *fp;
int i, key;
char *family = NULL;
fp = fopen(filename, "r");
if (fp) {
while (fgets(temp, 128, fp)) {
key = 0;
while (key >= 0 && keys[key].label) {
if ((p = strstr(temp, keys[key].label))) {
p += strlen(keys[key].label);
p += strspn(p, tokens);
if ((i = strcspn(p, "#\n")))
p[i] = 0;
free(*keys[key].var);
*keys[key].var = strdup(p);
key = -1;
} else
key++;
}
}
fclose(fp);
}
free(family);
}
/*******************************************************************************\
|* GetXPM *|
\*******************************************************************************/
static void GetXPM(XpmIcon * wmgen_local, const char *pixmap_bytes[])
{
XWindowAttributes attributes;
int err;
/* For the colormap */
XGetWindowAttributes(display, Root, &attributes);
/* despite the comment, I still don't understand...
attributes is subsequently unused in this function -ns 11/2002 */
wmgen_local->attributes.valuemask |=
(XpmReturnPixels | XpmReturnExtensions);
err = XpmCreatePixmapFromData(display, Root, (char **) pixmap_bytes,
&(wmgen_local->pixmap),
&(wmgen_local->mask),
&(wmgen_local->attributes));
if (err != XpmSuccess) {
fprintf(stderr,
"Not enough free colorcells to create pixmap from data (err=%d).\n",
err);
exit(1);
}
}
/*******************************************************************************\
|* GetColor *|
\*******************************************************************************/
Pixel GetColor(const char *name)
{
XColor color;
XWindowAttributes attributes;
XGetWindowAttributes(display, Root, &attributes);
color.pixel = 0;
if (!XParseColor(display, attributes.colormap, name, &color)) {
fprintf(stderr, "wm.app: GetColor() can't parse %s.\n", name);
} else if (!XAllocColor(display, attributes.colormap, &color)) {
fprintf(stderr, "wm.app: GetColor() can't allocate %s.\n", name);
}
return color.pixel;
}
/*******************************************************************************\
|* flush_expose *|
\*******************************************************************************/
static int flush_expose(Window w)
{
XEvent dummy;
int i = 0;
while (XCheckTypedWindowEvent(display, w, Expose, &dummy))
i++;
return i;
}
/*******************************************************************************\
|* RedrawWindow *|
\*******************************************************************************/
void RedrawWindow(void)
{
flush_expose(iconwin);
XCopyArea(display, wmgen_bkg.pixmap, iconwin, NormalGC,
0, 0, wmgen_bkg.attributes.width,
wmgen_bkg.attributes.height, 0, 0);
flush_expose(win);
XCopyArea(display, wmgen_bkg.pixmap, win, NormalGC,
0, 0, wmgen_bkg.attributes.width,
wmgen_bkg.attributes.height, 0, 0);
}
/*******************************************************************************\
|* RedrawWindowXY *|
\*******************************************************************************/
void RedrawWindowXY(int x, int y)
{
flush_expose(iconwin);
XCopyArea(display, wmgen_bkg.pixmap, iconwin, NormalGC,
x, y, wmgen_bkg.attributes.width,
wmgen_bkg.attributes.height, 0, 0);
flush_expose(win);
XCopyArea(display, wmgen_bkg.pixmap, win, NormalGC,
x, y, wmgen_bkg.attributes.width,
wmgen_bkg.attributes.height, 0, 0);
}
/*******************************************************************************\
|* AddMouseRegion *|
\*******************************************************************************/
void AddMouseRegion(unsigned int region_idx, int left, int top, int right,
int bottom)
{
if (region_idx < MAX_MOUSE_REGION) {
mouse_region[region_idx].enable = 1;
mouse_region[region_idx].top = top;
mouse_region[region_idx].left = left;
mouse_region[region_idx].bottom = bottom;
mouse_region[region_idx].right = right;
}
}
/*******************************************************************************\
|* CheckMouseRegion *|
\*******************************************************************************/
int CheckMouseRegion(int x, int y)
{
int i;
int found;
found = 0;
for (i = 0; i < MAX_MOUSE_REGION && !found; i++) {
if (mouse_region[i].enable &&
x <= mouse_region[i].right &&
x >= mouse_region[i].left &&
y <= mouse_region[i].bottom && y >= mouse_region[i].top)
found = 1;
}
if (!found)
return -1;
return (i - 1);
}
/*******************************************************************************\
|* createXBMfromXPM *|
\*******************************************************************************/
void createXBMfromXPM(char *xbm, const char **xpm, int sx, int sy)
{
int i, j, k;
int width, height, numcol, depth;
int zero = 0;
unsigned char bwrite;
int bcount;
int curpixel;
sscanf(*xpm, "%d %d %d %d", &width, &height, &numcol, &depth);
for (k = 0; k != depth; k++) {
zero <<= 8;
zero |= xpm[1][k];
}
for (i = numcol + 1; i < numcol + sy + 1; i++) {
bcount = 0;
bwrite = 0;
for (j = 0; j < sx * depth; j += depth) {
bwrite >>= 1;
curpixel = 0;
for (k = 0; k != depth; k++) {
curpixel <<= 8;
curpixel |= xpm[i][j + k];
}
if (curpixel != zero) {
bwrite += 128;
}
bcount++;
if (bcount == 8) {
*xbm = bwrite;
xbm++;
bcount = 0;
bwrite = 0;
}
}
}
}
/*******************************************************************************\
|* copyXPMArea *|
\*******************************************************************************/
void copyXPMArea(int src_x, int src_y, int width, int height, int dest_x,
int dest_y)
{
XCopyArea(display, wmgen_src.pixmap, wmgen_bkg.pixmap, NormalGC, src_x,
src_y, width, height, dest_x, dest_y);
}
/*******************************************************************************\
|* copyXBMArea *|
\*******************************************************************************/
void copyXBMArea(int src_x, int src_y, int width, int height, int dest_x,
int dest_y)
{
XCopyArea(display, wmgen_src.mask, wmgen_bkg.pixmap, NormalGC, src_x,
src_y, width, height, dest_x, dest_y);
}
/* added for wmbiff */
XFontStruct *f;
int loadFont(const char *fontname)
{
if (display != NULL) {
f = XLoadQueryFont(display, fontname);
if (f) {
XSetFont(display, NormalGC, f->fid);
return 0;
} else {
printf("couldn't set font!\n");
}
}
return -1;
}
void drawString(int dest_x, int dest_y, const char *string,
const char *colorname, const char *bgcolorname,
int right_justify)
{
int len = strlen(string);
assert(colorname != NULL);
XSetForeground(display, NormalGC, GetColor(colorname));
XSetBackground(display, NormalGC, GetColor(bgcolorname));
if (right_justify)
dest_x -= XTextWidth(f, string, len);
XDrawImageString(display, wmgen_bkg.pixmap, NormalGC, dest_x, dest_y,
string, len);
}
void eraseRect(int x, int y, int x2, int y2, const char *bgcolorname)
{
XSetForeground(display, NormalGC, GetColor(bgcolorname));
XFillRectangle(display, wmgen_bkg.pixmap, NormalGC, x, y, x2 - x,
y2 - y);
}
/* end wmbiff additions */
/*******************************************************************************\
|* setMaskXY *|
\*******************************************************************************/
void setMaskXY(int x, int y)
{
XShapeCombineMask(display, win, ShapeBounding, x, y, pixmask,
ShapeSet);
XShapeCombineMask(display, iconwin, ShapeBounding, x, y, pixmask,
ShapeSet);
}
/*******************************************************************************\
|* openXwindow *|
\*******************************************************************************/
void openXwindow(int argc, const char *argv[],
const char *pixmap_bytes_bkg[],
const char *pixmap_bytes_src[], char *pixmask_bits,
int pixmask_width, int pixmask_height, int notWithdrawn)
{
unsigned int borderwidth = 1;
XClassHint classHint;
const char *display_name = NULL;
char *wname = strdup(argv[0]);
XTextProperty name;
XGCValues gcv;
unsigned long gcm;
const char *geometry = NULL;
char default_geometry[128];
int dummy = 0;
int i;
if (!wname) {
fprintf(stderr, "Unable to allocate memory for window name!\n");
abort();
}
for (i = 1; argv[i]; i++) {
if (!strcmp(argv[i], "-display") && i < argc - 1) {
display_name = argv[i + 1];
i++;
}
if (!strcmp(argv[i], "-geometry") && i < argc - 1) {
geometry = argv[i + 1];
i++;
}
}
sprintf(default_geometry, "%dx%d+0+0", pixmask_width, pixmask_height);
if (!(display = XOpenDisplay(display_name))) {
fprintf(stderr, "%s: can't open display %s\n",
wname, XDisplayName(display_name));
exit(1);
}
screen = DefaultScreen(display);
Root = RootWindow(display, screen);
d_depth = DefaultDepth(display, screen);
x_fd = XConnectionNumber(display);
/* Convert XPM to XImage */
GetXPM(&wmgen_bkg, pixmap_bytes_bkg);
GetXPM(&wmgen_src, pixmap_bytes_src);
/* Create a window to hold the stuff */
mysizehints.flags = USSize | USPosition;
mysizehints.x = 0;
mysizehints.y = 0;
back_pix = GetColor("black");
fore_pix = GetColor("cyan");
XWMGeometry(display, screen, geometry, default_geometry, borderwidth,
&mysizehints, &mysizehints.x, &mysizehints.y,
&mysizehints.width, &mysizehints.height, &dummy);
mysizehints.width = pixmask_width; /* changed 11/2002 for wmbiff non 64x64-ness */
mysizehints.height = pixmask_height; /* was statically 64. */
win = XCreateSimpleWindow(display, Root, mysizehints.x, mysizehints.y,
mysizehints.width, mysizehints.height,
borderwidth, fore_pix, back_pix);
iconwin =
XCreateSimpleWindow(display, win, mysizehints.x, mysizehints.y,
mysizehints.width, mysizehints.height,
borderwidth, fore_pix, back_pix);
/* Activate hints */
XSetWMNormalHints(display, win, &mysizehints);
classHint.res_name = wname;
classHint.res_class = wname;
XSetClassHint(display, win, &classHint);
/* Was PointerMotionMask instead of KeyPressMask, but pointer motion is irrelevant,
and if the user went to the trouble of giving us keypresses, the least we can do
is handle em... */
XSelectInput(display, win,
ButtonPressMask | ExposureMask | ButtonReleaseMask |
KeyPressMask | StructureNotifyMask);
XSelectInput(display, iconwin,
ButtonPressMask | ExposureMask | ButtonReleaseMask |
KeyPressMask | StructureNotifyMask);
/* wname is argv[0] */
if (XStringListToTextProperty(&wname, 1, &name) == 0) {
fprintf(stderr, "%s: can't allocate window name\n", wname);
exit(1);
}
XSetWMName(display, win, &name);
XFree(name.value);
/* Create GC for drawing */
gcm = GCForeground | GCBackground | GCGraphicsExposures;
gcv.foreground = fore_pix;
gcv.background = back_pix;
gcv.graphics_exposures = 0;
NormalGC = XCreateGC(display, Root, gcm, &gcv);
/* ONLYSHAPE ON */
pixmask =
XCreateBitmapFromData(display, win, pixmask_bits, pixmask_width,
pixmask_height);
XShapeCombineMask(display, win, ShapeBounding, 0, 0, pixmask,
ShapeSet);
XShapeCombineMask(display, iconwin, ShapeBounding, 0, 0, pixmask,
ShapeSet);
/* ONLYSHAPE OFF */
mywmhints.initial_state = WithdrawnState;
mywmhints.icon_window = iconwin;
mywmhints.icon_x = mysizehints.x;
mywmhints.icon_y = mysizehints.y;
mywmhints.window_group = win;
mywmhints.flags =
(notWithdrawn ? 0 : StateHint) | IconWindowHint |
IconPositionHint | WindowGroupHint;
XSetWMHints(display, win, &mywmhints);
XSetCommand(display, win, (char **) argv, argc);
XMapWindow(display, win);
if (geometry) {
/* we'll silently drop width and height as well as negative positions */
/* mostly because I don't know how to deal with them */
/*
int wx, wy, x, y;
int specified = XParseGeometry(geometry, &x, &y, &wx, &wy);
printf("%d %d %d %d\n", x, y, wx, wy);
if( specified & XNegative ) {
x = DisplayWidth(display, DefaultScreen(display)) - x - pixmask_width;
}
if( specified & YNegative ) {
y = DisplayHeight(display, DefaultScreen(display)) - y - pixmask_height;
}
if( specified & XValue || specified & YValue ) {
XMoveWindow(display, win, x, y);
} */
/*
if (sscanf(geometry, "+%d+%d", &wx, &wy) == 2) {
XMoveWindow(display, win, wx, wy);
} else if (sscanf(geometry, "%dx%d+%d+%d", &x, &y, &wx, &wy) == 4) {
XMoveWindow(display, win, wx, wy);
} else if (sscanf(geometry, "+%d-%d", &wx, &wy) == 2) {
XMoveWindow(display, win, wx, 0 - wy);
} else {
fprintf(stderr, "Unsupported geometry string '%s'\n",
geometry);
exit(1);
} */
}
if (wname)
free(wname);
}
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