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removed draw.c, implemented C-w handling (backward word deletion)

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This commit is contained in:
Anselm R. Garbe
2007-02-19 15:49:50 +01:00
parent 1e01ca0317
commit 665488a6ee
6 changed files with 130 additions and 132 deletions
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2
Makefile
View File

@@ -3,7 +3,7 @@
include config.mk
SRC = draw.c main.c util.c
SRC = main.c util.c
OBJ = ${SRC:.c=.o}
all: options dmenu

2
config.mk
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@@ -1,5 +1,5 @@
# dmenu version
VERSION = 2.2
VERSION = 2.3
# Customize below to fit your system

3
dmenu.1
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@@ -90,6 +90,9 @@ Remove enough characters from the input field to change its filtering effect.
.TP
.B Control-u
Remove all characters from the input field.
.TP
.B Control-w
Remove all characters of current word from the input field.
.SH SEE ALSO
.BR dwm (1),
.BR wmii (1) .

7
dmenu.h
View File

@@ -38,13 +38,6 @@ extern int screen;
extern Display *dpy;
extern DC dc; /* global drawing context */
/* draw.c */
extern void drawtext(const char *text,
unsigned long col[ColLast]); /* draws text with the defined color tuple */
extern unsigned long getcolor(const char *colstr); /* returns color of colstr */
extern void setfont(const char *fontstr); /* sets global font */
extern unsigned int textw(const char *text); /* returns width of text in px */
/* util.c */
extern void *emalloc(unsigned int size); /* allocates memory, exits on error */
extern void eprint(const char *errstr, ...); /* prints errstr and exits with 1 */

121
draw.c
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@@ -1,121 +0,0 @@
/* (C)opyright MMIV-MMVII Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include "dmenu.h"
#include <stdio.h>
#include <string.h>
/* static */
static unsigned int
textnw(const char *text, unsigned int len) {
XRectangle r;
if(dc.font.set) {
XmbTextExtents(dc.font.set, text, len, NULL, &r);
return r.width;
}
return XTextWidth(dc.font.xfont, text, len);
}
/* extern */
void
drawtext(const char *text, unsigned long col[ColLast]) {
int x, y, w, h;
static char buf[256];
unsigned int len, olen;
XGCValues gcv;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
XSetForeground(dpy, dc.gc, col[ColBG]);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
if(!text)
return;
w = 0;
olen = len = strlen(text);
if(len >= sizeof buf)
len = sizeof buf - 1;
memcpy(buf, text, len);
buf[len] = 0;
h = dc.font.ascent + dc.font.descent;
y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
x = dc.x + (h / 2);
/* shorten text if necessary */
while(len && (w = textnw(buf, len)) > dc.w - h)
buf[--len] = 0;
if(len < olen) {
if(len > 1)
buf[len - 1] = '.';
if(len > 2)
buf[len - 2] = '.';
if(len > 3)
buf[len - 3] = '.';
}
if(w > dc.w)
return; /* too long */
gcv.foreground = col[ColFG];
if(dc.font.set) {
XChangeGC(dpy, dc.gc, GCForeground, &gcv);
XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc,
x, y, buf, len);
}
else {
gcv.font = dc.font.xfont->fid;
XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
}
}
unsigned long
getcolor(const char *colstr) {
Colormap cmap = DefaultColormap(dpy, screen);
XColor color;
if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
eprint("error, cannot allocate color '%s'\n", colstr);
return color.pixel;
}
void
setfont(const char *fontstr) {
char *def, **missing;
int i, n;
missing = NULL;
if(dc.font.set)
XFreeFontSet(dpy, dc.font.set);
dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
if(missing)
XFreeStringList(missing);
if(dc.font.set) {
XFontSetExtents *font_extents;
XFontStruct **xfonts;
char **font_names;
dc.font.ascent = dc.font.descent = 0;
font_extents = XExtentsOfFontSet(dc.font.set);
n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
if(dc.font.ascent < (*xfonts)->ascent)
dc.font.ascent = (*xfonts)->ascent;
if(dc.font.descent < (*xfonts)->descent)
dc.font.descent = (*xfonts)->descent;
xfonts++;
}
}
else {
if(dc.font.xfont)
XFreeFont(dpy, dc.font.xfont);
dc.font.xfont = NULL;
if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
eprint("error, cannot load font: '%s'\n", fontstr);
dc.font.ascent = dc.font.xfont->ascent;
dc.font.descent = dc.font.xfont->descent;
}
dc.font.height = dc.font.ascent + dc.font.descent;
}
unsigned int
textw(const char *text) {
return textnw(text, strlen(text)) + dc.font.height;
}

127
main.c
View File

@@ -44,6 +44,22 @@ static Item *curr = NULL;
static Window root;
static Window win;
static unsigned int
textnw(const char *text, unsigned int len) {
XRectangle r;
if(dc.font.set) {
XmbTextExtents(dc.font.set, text, len, NULL, &r);
return r.width;
}
return XTextWidth(dc.font.xfont, text, len);
}
static unsigned int
textw(const char *text) {
return textnw(text, strlen(text)) + dc.font.height;
}
static void
calcoffsets(void) {
unsigned int tw, w;
@@ -70,6 +86,53 @@ calcoffsets(void) {
}
}
static void
drawtext(const char *text, unsigned long col[ColLast]) {
int x, y, w, h;
static char buf[256];
unsigned int len, olen;
XGCValues gcv;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
XSetForeground(dpy, dc.gc, col[ColBG]);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
if(!text)
return;
w = 0;
olen = len = strlen(text);
if(len >= sizeof buf)
len = sizeof buf - 1;
memcpy(buf, text, len);
buf[len] = 0;
h = dc.font.ascent + dc.font.descent;
y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
x = dc.x + (h / 2);
/* shorten text if necessary */
while(len && (w = textnw(buf, len)) > dc.w - h)
buf[--len] = 0;
if(len < olen) {
if(len > 1)
buf[len - 1] = '.';
if(len > 2)
buf[len - 2] = '.';
if(len > 3)
buf[len - 3] = '.';
}
if(w > dc.w)
return; /* too long */
gcv.foreground = col[ColFG];
if(dc.font.set) {
XChangeGC(dpy, dc.gc, GCForeground, &gcv);
XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc,
x, y, buf, len);
}
else {
gcv.font = dc.font.xfont->fid;
XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
}
}
static void
drawmenu(void) {
Item *i;
@@ -111,6 +174,54 @@ drawmenu(void) {
XFlush(dpy);
}
static unsigned long
getcolor(const char *colstr) {
Colormap cmap = DefaultColormap(dpy, screen);
XColor color;
if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
eprint("error, cannot allocate color '%s'\n", colstr);
return color.pixel;
}
static void
setfont(const char *fontstr) {
char *def, **missing;
int i, n;
missing = NULL;
if(dc.font.set)
XFreeFontSet(dpy, dc.font.set);
dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
if(missing)
XFreeStringList(missing);
if(dc.font.set) {
XFontSetExtents *font_extents;
XFontStruct **xfonts;
char **font_names;
dc.font.ascent = dc.font.descent = 0;
font_extents = XExtentsOfFontSet(dc.font.set);
n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
if(dc.font.ascent < (*xfonts)->ascent)
dc.font.ascent = (*xfonts)->ascent;
if(dc.font.descent < (*xfonts)->descent)
dc.font.descent = (*xfonts)->descent;
xfonts++;
}
}
else {
if(dc.font.xfont)
XFreeFont(dpy, dc.font.xfont);
dc.font.xfont = NULL;
if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
eprint("error, cannot load font: '%s'\n", fontstr);
dc.font.ascent = dc.font.xfont->ascent;
dc.font.descent = dc.font.xfont->descent;
}
dc.font.height = dc.font.ascent + dc.font.descent;
}
static void
match(char *pattern) {
unsigned int plen;
@@ -151,8 +262,8 @@ match(char *pattern) {
static void
kpress(XKeyEvent * e) {
char buf[32];
int num, prev_nitem;
unsigned int i, len;
int i, num, prev_nitem;
unsigned int len;
KeySym ksym;
len = strlen(text);
@@ -188,6 +299,18 @@ kpress(XKeyEvent * e) {
match(text);
drawmenu();
return;
case XK_w:
case XK_W:
if(len) {
i = len - 1;
while(i >= 0 && text[i] == ' ')
text[i--] = 0;
while(i >= 0 && text[i] != ' ')
text[i--] = 0;
match(text);
drawmenu();
}
return;
}
}
if(CLEANMASK(e->state) & Mod1Mask) {