added dmenu.h, common.c

This commit is contained in:
Connor Lane Smith 2010-07-02 06:49:05 +01:00
parent 29e8faed6c
commit 855a566319
6 changed files with 204 additions and 314 deletions

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@ -3,7 +3,7 @@
include config.mk include config.mk
SRC = dinput.c dmenu.c SRC = dinput.c dmenu.c common.c
OBJ = ${SRC:.c=.o} OBJ = ${SRC:.c=.o}
all: options dinput dmenu all: options dinput dmenu
@ -24,9 +24,13 @@ config.h:
@echo creating $@ from config.def.h @echo creating $@ from config.def.h
@cp config.def.h $@ @cp config.def.h $@
.o: dinput: dinput.o common.o
@echo CC -o $@ @echo CC -o $@
@${CC} -o $@ $< ${LDFLAGS} @${CC} -o $@ $+ ${LDFLAGS}
dmenu: dmenu.o common.o
@echo CC -o $@
@${CC} -o $@ $+ ${LDFLAGS}
clean: clean:
@echo cleaning @echo cleaning

129
common.c Normal file
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@ -0,0 +1,129 @@
/* See LICENSE file for copyright and license details. */
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <X11/keysym.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif
#include "dmenu.h"
/* variables */
char *prompt = NULL;
char text[4096] = "";
int promptw = 0;
int screen;
unsigned int numlockmask = 0;
unsigned int mw, mh;
unsigned long normcol[ColLast];
unsigned long selcol[ColLast];
Bool topbar = True;
DC dc;
Display *dpy;
Window win, root;
void
grabkeyboard(void) {
unsigned int len;
for(len = 1000; len; len--) {
if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
== GrabSuccess)
return;
usleep(1000);
}
exit(EXIT_FAILURE);
}
void
run(void) {
XEvent ev;
/* main event loop */
XSync(dpy, False);
while(!XNextEvent(dpy, &ev))
switch(ev.type) {
case KeyPress:
kpress(&ev.xkey);
break;
case Expose:
if(ev.xexpose.count == 0)
drawbar();
break;
case VisibilityNotify:
if(ev.xvisibility.state != VisibilityUnobscured)
XRaiseWindow(dpy, win);
break;
}
exit(EXIT_FAILURE);
}
void
setup(unsigned int lines) {
int i, j, x, y;
#if XINERAMA
int n;
XineramaScreenInfo *info = NULL;
#endif
XModifierKeymap *modmap;
XSetWindowAttributes wa;
/* init modifier map */
modmap = XGetModifierMapping(dpy);
for(i = 0; i < 8; i++)
for(j = 0; j < modmap->max_keypermod; j++) {
if(modmap->modifiermap[i * modmap->max_keypermod + j]
== XKeysymToKeycode(dpy, XK_Num_Lock))
numlockmask = (1 << i);
}
XFreeModifiermap(modmap);
dc.dpy = dpy;
normcol[ColBG] = getcolor(&dc, normbgcolor);
normcol[ColFG] = getcolor(&dc, normfgcolor);
selcol[ColBG] = getcolor(&dc, selbgcolor);
selcol[ColFG] = getcolor(&dc, selfgcolor);
initfont(&dc, font);
/* input window */
wa.override_redirect = True;
wa.background_pixmap = ParentRelative;
wa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
/* input window geometry */
mh = (dc.font.height + 2) * (lines + 1);
#if XINERAMA
if(XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
i = 0;
if(n > 1) {
int di;
unsigned int dui;
Window dummy;
if(XQueryPointer(dpy, root, &dummy, &dummy, &x, &y, &di, &di, &dui))
for(i = 0; i < n; i++)
if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
break;
}
x = info[i].x_org;
y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
mw = info[i].width;
XFree(info);
}
else
#endif
{
x = 0;
y = topbar ? 0 : DisplayHeight(dpy, screen) - mh;
mw = DisplayWidth(dpy, screen);
}
win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
DefaultDepth(dpy, screen), CopyFromParent,
DefaultVisual(dpy, screen),
CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
setupdraw(&dc, win);
if(prompt)
promptw = MIN(textw(&dc, prompt), mw / 5);
XMapRaised(dpy, win);
}

View File

@ -1,9 +1,8 @@
/* See LICENSE file for copyright and license details. */ /* See LICENSE file for copyright and license details. */
/* appearance */ /* appearance */
const char *font = "-*-terminus-medium-r-normal-*-14-*-*-*-*-*-*-*"; static const char *font = "-*-terminus-medium-r-normal-*-14-*-*-*-*-*-*-*";
const char *normbgcolor = "#cccccc"; static const char *normbgcolor = "#cccccc";
const char *normfgcolor = "#000000"; static const char *normfgcolor = "#000000";
const char *selbgcolor = "#0066ff"; static const char *selbgcolor = "#0066ff";
const char *selfgcolor = "#ffffff"; static const char *selfgcolor = "#ffffff";
unsigned int spaceitem = 30; /* px between menu items */

150
dinput.c
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@ -4,45 +4,16 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <unistd.h>
#include <X11/keysym.h> #include <X11/keysym.h>
#include <X11/Xlib.h> #include <X11/Xlib.h>
#include <X11/Xutil.h> #include <X11/Xutil.h>
#ifdef XINERAMA #include "dmenu.h"
#include <X11/extensions/Xinerama.h>
#endif
#include <draw.h>
/* macros */
#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define IS_UTF8_1ST_CHAR(c) ((((c) & 0xc0) == 0xc0) || !((c) & 0x80))
/* forward declarations */ /* forward declarations */
static void cleanup(void); static void cleanup(void);
static void drawinput(void);
static void grabkeyboard(void);
static void kpress(XKeyEvent *e);
static void run(void);
static void setup(void);
#include "config.h"
/* variables */ /* variables */
static char *prompt = NULL;
static char text[4096];
static int promptw = 0;
static int screen;
static size_t cursor = 0; static size_t cursor = 0;
static unsigned int numlockmask = 0;
static unsigned int mw, mh;
static unsigned long normcol[ColLast];
static unsigned long selcol[ColLast];
static Bool topbar = True;
static DC dc;
static Display *dpy;
static Window win, root;
void void
cleanup(void) { cleanup(void) {
@ -53,7 +24,7 @@ cleanup(void) {
} }
void void
drawinput(void) drawbar(void)
{ {
dc.x = 0; dc.x = 0;
dc.y = 0; dc.y = 0;
@ -72,19 +43,6 @@ drawinput(void)
commitdraw(&dc, win); commitdraw(&dc, win);
} }
void
grabkeyboard(void) {
unsigned int len;
for(len = 1000; len; len--) {
if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
== GrabSuccess)
return;
usleep(1000);
}
exit(EXIT_FAILURE);
}
void void
kpress(XKeyEvent *e) { kpress(XKeyEvent *e) {
char buf[sizeof text]; char buf[sizeof text];
@ -207,101 +165,7 @@ kpress(XKeyEvent *e) {
while(cursor++ < len && !IS_UTF8_1ST_CHAR(text[cursor])); while(cursor++ < len && !IS_UTF8_1ST_CHAR(text[cursor]));
break; break;
} }
drawinput(); drawbar();
}
void
run(void) {
XEvent ev;
/* main event loop */
XSync(dpy, False);
while(!XNextEvent(dpy, &ev))
switch(ev.type) {
case KeyPress:
kpress(&ev.xkey);
break;
case Expose:
if(ev.xexpose.count == 0)
drawinput();
break;
case VisibilityNotify:
if(ev.xvisibility.state != VisibilityUnobscured)
XRaiseWindow(dpy, win);
break;
}
exit(EXIT_FAILURE);
}
void
setup(void) {
int i, j, x, y;
#if XINERAMA
int n;
XineramaScreenInfo *info = NULL;
#endif
XModifierKeymap *modmap;
XSetWindowAttributes wa;
/* init modifier map */
modmap = XGetModifierMapping(dpy);
for(i = 0; i < 8; i++)
for(j = 0; j < modmap->max_keypermod; j++) {
if(modmap->modifiermap[i * modmap->max_keypermod + j]
== XKeysymToKeycode(dpy, XK_Num_Lock))
numlockmask = (1 << i);
}
XFreeModifiermap(modmap);
dc.dpy = dpy;
normcol[ColBG] = getcolor(&dc, normbgcolor);
normcol[ColFG] = getcolor(&dc, normfgcolor);
selcol[ColBG] = getcolor(&dc, selbgcolor);
selcol[ColFG] = getcolor(&dc, selfgcolor);
initfont(&dc, font);
/* input window */
wa.override_redirect = True;
wa.background_pixmap = ParentRelative;
wa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
/* input window geometry */
mh = dc.font.height + 2;
#if XINERAMA
if(XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
i = 0;
if(n > 1) {
int di;
unsigned int dui;
Window dummy;
if(XQueryPointer(dpy, root, &dummy, &dummy, &x, &y, &di, &di, &dui))
for(i = 0; i < n; i++)
if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
break;
}
x = info[i].x_org;
y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
mw = info[i].width;
XFree(info);
}
else
#endif
{
x = 0;
y = topbar ? 0 : DisplayHeight(dpy, screen) - mh;
mw = DisplayWidth(dpy, screen);
}
win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
DefaultDepth(dpy, screen), CopyFromParent,
DefaultVisual(dpy, screen),
CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
setupdraw(&dc, win);
if(prompt)
promptw = MIN(textw(&dc, prompt), mw / 5);
cursor = strlen(text);
XMapRaised(dpy, win);
} }
int int
@ -336,11 +200,13 @@ main(int argc, char *argv[]) {
if(++i < argc) selfgcolor = argv[i]; if(++i < argc) selfgcolor = argv[i];
} }
else if(!strcmp(argv[i], "-v")) { else if(!strcmp(argv[i], "-v")) {
printf("dinput-"VERSION", © 2006-2010 dinput engineers, see LICENSE for details\n"); printf("dinput-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);
} }
else if(!*text) else if(!*text) {
strncpy(text, argv[i], sizeof text); strncpy(text, argv[i], sizeof text);
cursor = strlen(text);
}
else { else {
fputs("usage: dinput [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n" fputs("usage: dinput [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n"
" [-p <prompt>] [-sb <color>] [-sf <color>] [-v] [<text>]\n", stderr); " [-p <prompt>] [-sb <color>] [-sf <color>] [-v] [<text>]\n", stderr);
@ -356,7 +222,7 @@ main(int argc, char *argv[]) {
root = RootWindow(dpy, screen); root = RootWindow(dpy, screen);
grabkeyboard(); grabkeyboard();
setup(); setup(0);
run(); run();
return 0; return 0;
} }

188
dmenu.c
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@ -8,16 +8,7 @@
#include <X11/keysym.h> #include <X11/keysym.h>
#include <X11/Xlib.h> #include <X11/Xlib.h>
#include <X11/Xutil.h> #include <X11/Xutil.h>
#ifdef XINERAMA #include "dmenu.h"
#include <X11/extensions/Xinerama.h>
#endif
#include <draw.h>
/* macros */
#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define IS_UTF8_1ST_CHAR(c) ((((c) & 0xc0) == 0xc0) || !((c) & 0x80))
typedef struct Item Item; typedef struct Item Item;
struct Item { struct Item {
@ -33,41 +24,22 @@ static void calcoffsetsv(void);
static char *cistrstr(const char *s, const char *sub); static char *cistrstr(const char *s, const char *sub);
static void cleanup(void); static void cleanup(void);
static void dinput(void); static void dinput(void);
static void drawmenu(void);
static void drawmenuh(void); static void drawmenuh(void);
static void drawmenuv(void); static void drawmenuv(void);
static void grabkeyboard(void); static void match(void);
static void kpress(XKeyEvent *e);
static void match(char *pattern);
static void readstdin(void); static void readstdin(void);
static void run(void);
static void setup(void);
#include "config.h"
/* variables */ /* variables */
static char **argp = NULL; static char **argp = NULL;
static char *maxname = NULL; static char *maxname = NULL;
static char *prompt = NULL; static unsigned int cmdw = 0;
static char text[4096];
static int cmdw = 0;
static int promptw = 0;
static int screen;
static unsigned int lines = 0; static unsigned int lines = 0;
static unsigned int numlockmask = 0;
static unsigned int mw, mh;
static unsigned long normcol[ColLast];
static unsigned long selcol[ColLast];
static Bool topbar = True;
static DC dc;
static Display *dpy;
static Item *allitems = NULL; /* first of all items */ static Item *allitems = NULL; /* first of all items */
static Item *item = NULL; /* first of pattern matching items */ static Item *item = NULL; /* first of pattern matching items */
static Item *sel = NULL; static Item *sel = NULL;
static Item *next = NULL; static Item *next = NULL;
static Item *prev = NULL; static Item *prev = NULL;
static Item *curr = NULL; static Item *curr = NULL;
static Window win, root;
static int (*fstrncmp)(const char *, const char *, size_t) = strncmp; static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
static char *(*fstrstr)(const char *, const char *) = strstr; static char *(*fstrstr)(const char *, const char *) = strstr;
static void (*calcoffsets)(void) = calcoffsetsh; static void (*calcoffsets)(void) = calcoffsetsh;
@ -85,14 +57,13 @@ appenditem(Item *i, Item **list, Item **last) {
void void
calcoffsetsh(void) { calcoffsetsh(void) {
unsigned int x; unsigned int w, x;
x = promptw + cmdw + (2 * spaceitem); w = promptw + cmdw + textw(&dc, "<") + textw(&dc, ">");
for(next = curr; next; next = next->right) for(x = w, next = curr; next; next = next->right)
if((x += MIN(textw(&dc, next->text), mw / 3)) > mw) if((x += MIN(textw(&dc, next->text), mw / 3)) > mw)
break; break;
x = promptw + cmdw + (2 * spaceitem); for(x = w, prev = curr; prev && prev->left; prev = prev->left)
for(prev = curr; prev && prev->left; prev = prev->left)
if((x += MIN(textw(&dc, prev->left->text), mw / 3)) > mw) if((x += MIN(textw(&dc, prev->left->text), mw / 3)) > mw)
break; break;
} }
@ -157,7 +128,7 @@ dinput(void) {
} }
void void
drawmenu(void) { drawbar(void) {
dc.x = 0; dc.x = 0;
dc.y = 0; dc.y = 0;
dc.w = mw; dc.w = mw;
@ -188,7 +159,7 @@ drawmenuh(void) {
Item *i; Item *i;
dc.x += cmdw; dc.x += cmdw;
dc.w = spaceitem; dc.w = textw(&dc, "<");
drawtext(&dc, curr->left ? "<" : NULL, normcol); drawtext(&dc, curr->left ? "<" : NULL, normcol);
dc.x += dc.w; dc.x += dc.w;
for(i = curr; i != next; i = i->right) { for(i = curr; i != next; i = i->right) {
@ -196,7 +167,7 @@ drawmenuh(void) {
drawtext(&dc, i->text, (sel == i) ? selcol : normcol); drawtext(&dc, i->text, (sel == i) ? selcol : normcol);
dc.x += dc.w; dc.x += dc.w;
} }
dc.w = spaceitem; dc.w = textw(&dc, ">");
dc.x = mw - dc.w; dc.x = mw - dc.w;
drawtext(&dc, next ? ">" : NULL, normcol); drawtext(&dc, next ? ">" : NULL, normcol);
} }
@ -217,19 +188,6 @@ drawmenuv(void) {
XMoveResizeWindow(dpy, win, wa.x, wa.y + (topbar ? 0 : wa.height - mh), mw, mh); XMoveResizeWindow(dpy, win, wa.x, wa.y + (topbar ? 0 : wa.height - mh), mw, mh);
} }
void
grabkeyboard(void) {
unsigned int len;
for(len = 1000; len; len--) {
if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
== GrabSuccess)
return;
usleep(1000);
}
exit(EXIT_FAILURE);
}
void void
kpress(XKeyEvent *e) { kpress(XKeyEvent *e) {
char buf[sizeof text]; char buf[sizeof text];
@ -285,7 +243,7 @@ kpress(XKeyEvent *e) {
break; break;
case XK_u: case XK_u:
text[0] = '\0'; text[0] = '\0';
match(text); match();
break; break;
case XK_w: case XK_w:
if(len == 0) if(len == 0)
@ -294,7 +252,7 @@ kpress(XKeyEvent *e) {
while(i-- > 0 && text[i] == ' '); while(i-- > 0 && text[i] == ' ');
while(i-- > 0 && text[i] != ' '); while(i-- > 0 && text[i] != ' ');
text[++i] = '\0'; text[++i] = '\0';
match(text); match();
break; break;
} }
} }
@ -304,7 +262,7 @@ kpress(XKeyEvent *e) {
if(num && !iscntrl((int) buf[0])) { if(num && !iscntrl((int) buf[0])) {
memcpy(text + len, buf, num + 1); memcpy(text + len, buf, num + 1);
len += num; len += num;
match(text); match();
} }
break; break;
case XK_BackSpace: case XK_BackSpace:
@ -313,7 +271,7 @@ kpress(XKeyEvent *e) {
for(i = 1; len - i > 0 && !IS_UTF8_1ST_CHAR(text[len - i]); i++); for(i = 1; len - i > 0 && !IS_UTF8_1ST_CHAR(text[len - i]); i++);
len -= i; len -= i;
text[len] = '\0'; text[len] = '\0';
match(text); match();
break; break;
case XK_End: case XK_End:
while(next) { while(next) {
@ -373,24 +331,22 @@ kpress(XKeyEvent *e) {
dinput(); dinput();
break; break;
} }
drawmenu(); drawbar();
} }
void void
match(char *pattern) { match(void) {
unsigned int plen; unsigned int len;
Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend; Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
if(!pattern) len = strlen(text);
return;
plen = strlen(pattern);
item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL; item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
for(i = allitems; i; i = i->next) for(i = allitems; i; i = i->next)
if(!fstrncmp(pattern, i->text, plen + 1)) if(!fstrncmp(text, i->text, len + 1))
appenditem(i, &lexact, &exactend); appenditem(i, &lexact, &exactend);
else if(!fstrncmp(pattern, i->text, plen)) else if(!fstrncmp(text, i->text, len))
appenditem(i, &lprefix, &prefixend); appenditem(i, &lprefix, &prefixend);
else if(fstrstr(i->text, pattern)) else if(fstrstr(i->text, text))
appenditem(i, &lsubstr, &substrend); appenditem(i, &lsubstr, &substrend);
if(lexact) { if(lexact) {
item = lexact; item = lexact;
@ -444,103 +400,6 @@ readstdin(void) {
} }
} }
void
run(void) {
XEvent ev;
/* main event loop */
XSync(dpy, False);
while(!XNextEvent(dpy, &ev))
switch(ev.type) {
case KeyPress:
kpress(&ev.xkey);
break;
case Expose:
if(ev.xexpose.count == 0)
drawmenu();
break;
case VisibilityNotify:
if(ev.xvisibility.state != VisibilityUnobscured)
XRaiseWindow(dpy, win);
break;
}
exit(EXIT_FAILURE);
}
void
setup(void) {
int i, j, x, y;
#if XINERAMA
int n;
XineramaScreenInfo *info = NULL;
#endif
XModifierKeymap *modmap;
XSetWindowAttributes wa;
/* init modifier map */
modmap = XGetModifierMapping(dpy);
for(i = 0; i < 8; i++)
for(j = 0; j < modmap->max_keypermod; j++) {
if(modmap->modifiermap[i * modmap->max_keypermod + j]
== XKeysymToKeycode(dpy, XK_Num_Lock))
numlockmask = (1 << i);
}
XFreeModifiermap(modmap);
dc.dpy = dpy;
normcol[ColBG] = getcolor(&dc, normbgcolor);
normcol[ColFG] = getcolor(&dc, normfgcolor);
selcol[ColBG] = getcolor(&dc, selbgcolor);
selcol[ColFG] = getcolor(&dc, selfgcolor);
initfont(&dc, font);
/* menu window */
wa.override_redirect = True;
wa.background_pixmap = ParentRelative;
wa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
/* menu window geometry */
mh = (dc.font.height + 2) * (lines + 1);
#if XINERAMA
if(XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
i = 0;
if(n > 1) {
int di;
unsigned int dui;
Window dummy;
if(XQueryPointer(dpy, root, &dummy, &dummy, &x, &y, &di, &di, &dui))
for(i = 0; i < n; i++)
if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
break;
}
x = info[i].x_org;
y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
mw = info[i].width;
XFree(info);
}
else
#endif
{
x = 0;
y = topbar ? 0 : mh - DisplayHeight(dpy, screen);
mw = DisplayWidth(dpy, screen);
}
win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
DefaultDepth(dpy, screen), CopyFromParent,
DefaultVisual(dpy, screen),
CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
setupdraw(&dc, win);
if(maxname)
cmdw = MIN(textw(&dc, maxname), mw / 3);
if(prompt)
promptw = MIN(textw(&dc, prompt), mw / 5);
text[0] = '\0';
match(text);
XMapRaised(dpy, win);
}
int int
main(int argc, char *argv[]) { main(int argc, char *argv[]) {
unsigned int i; unsigned int i;
@ -600,7 +459,10 @@ main(int argc, char *argv[]) {
readstdin(); readstdin();
grabkeyboard(); grabkeyboard();
setup(); setup(lines);
if(maxname)
cmdw = MIN(textw(&dc, maxname), mw / 3);
match();
run(); run();
return 0; return 0;
} }

30
dmenu.h Normal file
View File

@ -0,0 +1,30 @@
#include <X11/Xlib.h>
#include <draw.h>
#include "config.h"
/* macros */
#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define IS_UTF8_1ST_CHAR(c) ((((c) & 0xc0) == 0xc0) || !((c) & 0x80))
/* forward declarations */
void drawbar(void);
void grabkeyboard(void);
void kpress(XKeyEvent *e);
void run(void);
void setup(unsigned int lines);
/* variables */
extern char *prompt;
extern char text[4096];
extern int promptw;
extern int screen;
extern unsigned int numlockmask;
extern unsigned int mw, mh;
extern unsigned long normcol[ColLast];
extern unsigned long selcol[ColLast];
extern Bool topbar;
extern DC dc;
extern Display *dpy;
extern Window win, root;