snow/dockapps
1
0
Fork 0
Code Issues Releases Activity
dockapps/wmmon/wmgeneral/wmgeneral.c
Doug Torrance 6b1ed40882 wmgeneral: Use field width limits for scanf. 
This fixes "(portability) scanf without field width limits can crash with
huge input data on some versions of libc" warning from cppcheck.

We choose 10 as the field width limit as it is the number of characters in
2^31-1, the largest int.
2015-05-20 10:44:41 +01:00

493 lines
13 KiB
C
Raw Blame History

/*
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:
---
10/10/2003 (Simon Law, sfllaw@debian.org)
* changed the parse_rcfile function to use getline instead of fgets.
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.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <stdarg.h>
#include <X11/Xlib.h>
#include <X11/xpm.h>
#include <X11/extensions/shape.h>
#include "wmgeneral.h"
/*****************/
/* X11 Variables */
/*****************/
Window Root;
int screen;
int x_fd;
int d_depth;
XSizeHints mysizehints;
XWMHints mywmhints;
Pixel back_pix, fore_pix;
char *Geometry = "";
Window iconwin, win;
GC NormalGC;
XpmIcon wmgen;
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 *, char **);
static Pixel GetColor(char *);
void RedrawWindow(void);
void AddMouseRegion(int, int, int, int, int);
int CheckMouseRegion(int, int);
/*******************************************************************************\
|* parse_rcfile *|
\*******************************************************************************/
void parse_rcfile(const char *filename, rckeys *keys) {
char *p;
FILE *fp;
fp = fopen(filename, "r");
if (fp) {
char temp[128];
while (fgets(temp, 128, fp)) {
char *q;
char *tokens = " :\t\n";
int key;
key = 0;
q = strdup(temp);
q = strtok(q, tokens);
while (key >= 0 && keys[key].label) {
if ((!strcmp(q, keys[key].label))) {
int i;
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(q);
}
fclose(fp);
}
}
/*******************************************************************************\
|* parse_rcfile2 *|
\*******************************************************************************/
void parse_rcfile2(const char *filename, rckeys2 *keys) {
char *p;
char *line = NULL;
size_t line_size = 0;
FILE *fp;
char *family = NULL;
fp = fopen(filename, "r");
if (fp) {
while (getline(&line, &line_size, fp) >= 0) {
int key;
key = 0;
while (key >= 0 && keys[key].label) {
if ((p = strstr(line, keys[key].label))) {
char *tokens = " :\t\n";
int i;
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, char *pixmap_bytes[]) {
XWindowAttributes attributes;
int err;
/* For the colormap */
XGetWindowAttributes(display, Root, &attributes);
wmgen->attributes.valuemask |= (XpmReturnPixels | XpmReturnExtensions);
err = XpmCreatePixmapFromData(display, Root, pixmap_bytes, &(wmgen->pixmap),
&(wmgen->mask), &(wmgen->attributes));
if (err != XpmSuccess) {
fprintf(stderr, "Not enough free colorcells.\n");
exit(1);
}
}
/*******************************************************************************\
|* GetColor *|
\*******************************************************************************/
static Pixel GetColor(char *name) {
XColor color;
XWindowAttributes attributes;
XGetWindowAttributes(display, Root, &attributes);
color.pixel = 0;
if (!XParseColor(display, attributes.colormap, name, &color)) {
fprintf(stderr, "wm.app: can't parse %s.\n", name);
} else if (!XAllocColor(display, attributes.colormap, &color)) {
fprintf(stderr, "wm.app: 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.pixmap, iconwin, NormalGC,
0,0, wmgen.attributes.width, wmgen.attributes.height, 0,0);
flush_expose(win);
XCopyArea(display, wmgen.pixmap, win, NormalGC,
0,0, wmgen.attributes.width, wmgen.attributes.height, 0,0);
}
/*******************************************************************************\
|* RedrawWindowXY *|
\*******************************************************************************/
void RedrawWindowXY(int x, int y) {
flush_expose(iconwin);
XCopyArea(display, wmgen.pixmap, iconwin, NormalGC,
x,y, wmgen.attributes.width, wmgen.attributes.height, 0,0);
flush_expose(win);
XCopyArea(display, wmgen.pixmap, win, NormalGC,
x,y, wmgen.attributes.width, wmgen.attributes.height, 0,0);
}
/*******************************************************************************\
|* AddMouseRegion *|
\*******************************************************************************/
void AddMouseRegion(int index, int left, int top, int right, int bottom) {
if (index < MAX_MOUSE_REGION) {
mouse_region[index].enable = 1;
mouse_region[index].top = top;
mouse_region[index].left = left;
mouse_region[index].bottom = bottom;
mouse_region[index].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, char **xpm, int sx, int sy) {
int i,j,k;
int width, height, numcol, depth;
int zero=0;
int curpixel;
sscanf(*xpm, "%10d %10d %10d %10d", &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++) {
unsigned char bwrite;
int bcount;
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 x, int y, int sx, int sy, int dx, int dy) {
XCopyArea(display, wmgen.pixmap, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
}
/*******************************************************************************\
|* copyXBMArea *|
\*******************************************************************************/
void copyXBMArea(int x, int y, int sx, int sy, int dx, int dy) {
XCopyArea(display, wmgen.mask, wmgen.pixmap, NormalGC, x, y, sx, sy, dx, dy);
}
/*******************************************************************************\
|* 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, char *argv[], char *pixmap_bytes[], char *pixmask_bits, int pixmask_width, int pixmask_height) {
unsigned int borderwidth = 1;
XClassHint classHint;
char *display_name = NULL;
char *wname = argv[0];
XTextProperty name;
XGCValues gcv;
unsigned long gcm;
char *geometry = NULL;
int dummy=0;
int i, wx, wy;
for (i=1; argv[i]; i++) {
if (!strcmp(argv[i], "-display"))
display_name = argv[++i];
else if (!strcmp(argv[i], "-geometry"))
geometry = argv[++i];
}
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, pixmap_bytes);
/* Create a window to hold the stuff */
mysizehints.flags = USSize | USPosition;
mysizehints.x = 0;
mysizehints.y = 0;
back_pix = GetColor("white");
fore_pix = GetColor("black");
XWMGeometry(display, screen, Geometry, NULL, borderwidth, &mysizehints,
&mysizehints.x, &mysizehints.y,&mysizehints.width,&mysizehints.height, &dummy);
if (geometry)
XParseGeometry(geometry, &mysizehints.x, &mysizehints.y,
(unsigned int *) &mysizehints.width, (unsigned int *) &mysizehints.height);
mysizehints.width = 64;
mysizehints.height = 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);
XSelectInput(display, win, ButtonPressMask | ExposureMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask);
XSelectInput(display, iconwin, ButtonPressMask | ExposureMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask);
if (XStringListToTextProperty(&wname, 1, &name) == 0) {
fprintf(stderr, "%s: can't allocate window name\n", wname);
exit(1);
}
XSetWMName(display, win, &name);
/* 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 = StateHint | IconWindowHint | IconPositionHint | WindowGroupHint;
XSetWMHints(display, win, &mywmhints);
XSetCommand(display, win, argv, argc);
XMapWindow(display, win);
if (geometry) {
if (sscanf(geometry, "+%10d+%10d", &wx, &wy) != 2) {
fprintf(stderr, "Bad geometry string.\n");
exit(1);
}
XMoveWindow(display, win, wx, wy);
}
}
Reference in a new issue View git blame Copy permalink