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6 Commits
cb3f58ad06 ... distrosymb

Author SHA1 Message Date
Fabian Schmidt
a004cdd76d Added a distro symbol (similar to what you'll find in DEs). Not yet functional. 2020-05-30 22:13:12 +02:00
bakkeby
f09418bbb6 dwm crashes when opening 50+ clients (tile layout) 
Many users new to dwm find themselves caught out by being kicked out to the login manager (dwm crashing) when they open 50+ clients for demonstration purposes. The number of clients reported varies depending on the resolution of the monitor.

The cause of this is due to how the default tile layout calculates the height of the next client based on the position of the previous client. Because clients have a minimum size the (ty) position can exceed that of the window height, resulting in (m->wh - ty) becoming negative. The negative height stored as an unsigned int results in a very large height ultimately resulting in dwm crashing.

This patch adds safeguards to prevent the ty and my positions from exceeding that of the window height.
 2020-04-25 13:31:02 +02:00
Chris Down
ed3ab6b4fc drawbar: Don't shadow sw global 
This jarred me a bit while reading the code, since "sw" usually refers
to the global screen geometry, but in drawbar() only it refers to
text-related geometry. Renaming it makes it more obvious that these are
not related.
 2020-04-22 20:33:39 +02:00
Chris Down
f087d20e6e getatomprop: Add forward declaration 
No functional changes, but for every other function we have a forward
declaration here. getatomprop should be no exception.
 2020-04-22 20:33:26 +02:00
Chris Down
a8e9513783 setmfact: Unify bounds for compile-time and runtime mfact 
There are two places that mfact can be set:

- In the mfact global, which is defined at compile time and passed
  into m->mfact during monitor setup. No bounds checks are performed,
  but the comment alongside it says that valid values are [0.05..0.95]:

      static const float mfact = 0.55; /* factor of master area size [0.05..0.95] */

- By setmfact, which adjusts m->mfact at runtime. It also does some
  minimum and maximum bounds checks, allowing [0.1..0.9]. Values outside
  of that range are ignored, and mfact is not adjusted.

These different thresholds mean that one cannot setmfact 0.95 or 0.05,
despite the comment above that lists the legal range for mfact.

Clarify this by enforcing the same bounds in setmfact at runtime as
those listed for mfact at compile time.
 2020-04-20 17:56:41 +02:00
Hiltjo Posthuma
c82db690cc config.mk: fix POSIX_C_SOURCE macro for feature test for snprintf() 
The feature test was incorrect:
_POSIX_C_SOURCE=2

"The value 2 or greater additionally exposes definitions for POSIX.2-1992."
http://man7.org/linux/man-pages/man7/feature_test_macros.7.html

A higher value is needed (atleast 1995):
https://pubs.opengroup.org/onlinepubs/9699919799/functions/snprintf.html

FreeBSD feature test macro:
on
https://github.com/freebsd/freebsd/blob/master/include/stdio.h line 297

This was already fixed in dmenu.

This fixes a warning on FreeBSD, reported by Plasmoduck on IRC, thanks.
 2020-04-03 15:36:32 +02:00
3 changed files with 19 additions and 9 deletions
Expand all files Collapse all files

1
config.def.h
View File

@@ -5,6 +5,7 @@ static const unsigned int borderpx = 1; /* border pixel of windows */
static const unsigned int snap = 32; /* snap pixel */ static const unsigned int snap = 32; /* snap pixel */
static const int showbar = 1; /* 0 means no bar */ static const int showbar = 1; /* 0 means no bar */
static const int topbar = 1; /* 0 means bottom bar */ static const int topbar = 1; /* 0 means bottom bar */
static const char *distrosymbol = "";
static const char *fonts[] = { "monospace:size=10" }; static const char *fonts[] = { "monospace:size=10" };
static const char dmenufont[] = "monospace:size=10"; static const char dmenufont[] = "monospace:size=10";
static const char col_gray1[] = "#222222"; static const char col_gray1[] = "#222222";

2
config.mk
View File

@@ -25,7 +25,7 @@ INCS = -I${X11INC} -I${FREETYPEINC}
LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
# flags # flags
CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=2 -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS} CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=200809L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
#CFLAGS = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS} #CFLAGS = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
CFLAGS = -std=c99 -pedantic -Wall -Wno-deprecated-declarations -Os ${INCS} ${CPPFLAGS} CFLAGS = -std=c99 -pedantic -Wall -Wno-deprecated-declarations -Os ${INCS} ${CPPFLAGS}
LDFLAGS = ${LIBS} LDFLAGS = ${LIBS}

25
dwm.c
View File

@@ -113,6 +113,7 @@ typedef struct {
struct Monitor { struct Monitor {
char ltsymbol[16]; char ltsymbol[16];
char distrosymbol[16];
float mfact; float mfact;
int nmaster; int nmaster;
int num; int num;
@@ -169,6 +170,7 @@ static void focus(Client *c);
static void focusin(XEvent *e); static void focusin(XEvent *e);
static void focusmon(const Arg *arg); static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg); static void focusstack(const Arg *arg);
static Atom getatomprop(Client *c, Atom prop);
static int getrootptr(int *x, int *y); static int getrootptr(int *x, int *y);
static long getstate(Window w); static long getstate(Window w);
static int gettextprop(Window w, Atom atom, char *text, unsigned int size); static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
@@ -430,7 +432,8 @@ buttonpress(XEvent *e)
focus(NULL); focus(NULL);
} }
if (ev->window == selmon->barwin) { if (ev->window == selmon->barwin) {
i = x = 0; x = TEXTW(m->distrosymbol);
i = 0;
do do
x += TEXTW(tags[i]); x += TEXTW(tags[i]);
while (ev->x >= x && ++i < LENGTH(tags)); while (ev->x >= x && ++i < LENGTH(tags));
@@ -641,6 +644,7 @@ createmon(void)
m->lt[0] = &layouts[0]; m->lt[0] = &layouts[0];
m->lt[1] = &layouts[1 % LENGTH(layouts)]; m->lt[1] = &layouts[1 % LENGTH(layouts)];
strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol); strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
strncpy(m->distrosymbol, distrosymbol, sizeof m->distrosymbol);
return m; return m;
} }
@@ -695,7 +699,7 @@ dirtomon(int dir)
void void
drawbar(Monitor *m) drawbar(Monitor *m)
{ {
int x, w, sw = 0; int x, w, tw = 0;
int boxs = drw->fonts->h / 9; int boxs = drw->fonts->h / 9;
int boxw = drw->fonts->h / 6 + 2; int boxw = drw->fonts->h / 6 + 2;
unsigned int i, occ = 0, urg = 0; unsigned int i, occ = 0, urg = 0;
@@ -704,8 +708,8 @@ drawbar(Monitor *m)
/* draw status first so it can be overdrawn by tags later */ /* draw status first so it can be overdrawn by tags later */
if (m == selmon) { /* status is only drawn on selected monitor */ if (m == selmon) { /* status is only drawn on selected monitor */
drw_setscheme(drw, scheme[SchemeNorm]); drw_setscheme(drw, scheme[SchemeNorm]);
sw = TEXTW(stext) - lrpad + 2; /* 2px right padding */ tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
drw_text(drw, m->ww - sw, 0, sw, bh, 0, stext, 0); drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0);
} }
for (c = m->clients; c; c = c->next) { for (c = m->clients; c; c = c->next) {
@@ -714,6 +718,9 @@ drawbar(Monitor *m)
urg |= c->tags; urg |= c->tags;
} }
x = 0; x = 0;
w = blw = TEXTW(m->distrosymbol);
drw_setscheme(drw, scheme[SchemeNorm]);
x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->distrosymbol, 0);
for (i = 0; i < LENGTH(tags); i++) { for (i = 0; i < LENGTH(tags); i++) {
w = TEXTW(tags[i]); w = TEXTW(tags[i]);
drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]); drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
@@ -728,7 +735,7 @@ drawbar(Monitor *m)
drw_setscheme(drw, scheme[SchemeNorm]); drw_setscheme(drw, scheme[SchemeNorm]);
x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0); x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
if ((w = m->ww - sw - x) > bh) { if ((w = m->ww - tw - x) > bh) {
if (m->sel) { if (m->sel) {
drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]); drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0); drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
@@ -1520,7 +1527,7 @@ setmfact(const Arg *arg)
if (!arg || !selmon->lt[selmon->sellt]->arrange) if (!arg || !selmon->lt[selmon->sellt]->arrange)
return; return;
f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0; f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
if (f < 0.1 || f > 0.9) if (f < 0.05 || f > 0.95)
return; return;
selmon->mfact = f; selmon->mfact = f;
arrange(selmon); arrange(selmon);
@@ -1688,11 +1695,13 @@ tile(Monitor *m)
if (i < m->nmaster) { if (i < m->nmaster) {
h = (m->wh - my) / (MIN(n, m->nmaster) - i); h = (m->wh - my) / (MIN(n, m->nmaster) - i);
resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0); resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
my += HEIGHT(c); if (my + HEIGHT(c) < m->wh)
my += HEIGHT(c);
} else { } else {
h = (m->wh - ty) / (n - i); h = (m->wh - ty) / (n - i);
resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0); resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
ty += HEIGHT(c); if (ty + HEIGHT(c) < m->wh)
ty += HEIGHT(c);
} }
} }