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Adding Xinerama support

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This commit is contained in:
phillbush 2020-07-29 17:55:20 -03:00
parent 3d8536642e
commit 237da9824c
3 changed files with 128 additions and 27 deletions
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28
xmenu.1
View File

@ -30,8 +30,34 @@ Set the position to spawn xmenu.
Without this option, xmenu spawns next to the cursor.
.I position
is a string of the form
.BR INTxINT ,
.BR INTxINT[:MONITOR] ,
where the first INT is the x position and the second INT is the y position.
The monitor part between brackets is optional.
.B MONITOR
can be a number from 0 to the number of monitors minus 1;
or it can be a string like
.B current
or
.BR cursor .
If present, the monitor specifies that the position is relative to the upper left corner
of that monitor.
If
.B monitor
is
.B current
or
.BR cursor ,
the monitor to be used is that where the cursor is in.
For example,
.B -p 0x0:cursor
specifies that
.B xmenu
must spawn at the position 0x0 of the monitor where the cursor is in.
And
.B -p 100x500:0
specifies that
.B xmenu
must spawn at the position 100x500 of the monitor 0.
.TP
.B -w
Asks the window manager to draw a border around the menus.

113
xmenu.c
View File

@ -13,6 +13,7 @@
#include <X11/Xresource.h>
#include <X11/XKBlib.h>
#include <X11/Xft/Xft.h>
#include <X11/extensions/Xinerama.h>
#include <Imlib2.h>
#include "xmenu.h"
@ -21,11 +22,12 @@
*/
/* argument parser */
static void parseposition(const char *optarg);
static void parseposition(char *optarg);
/* initializers, and their helper routines */
static void parsefonts(const char *s);
static void ealloccolor(const char *s, XftColor *color);
static void initmonitor(void);
static void initresources(void);
static void initdc(void);
static void initconfig(void);
@ -87,13 +89,15 @@ static Visual *visual;
static Window rootwin;
static Colormap colormap;
static struct DC dc;
static struct Monitor mon;
static Atom utf8string;
static Atom wmdelete;
static Atom netatom[NetLast];
/* flags */
static int iflag = 0; /* whether to disable icons */
static int pflag = 0; /* whether the user specified a position */
static int mflag = 0; /* whether the user specified a monitor with -p */
static int pflag = 0; /* whether the user specified a position with -p */
static int wflag = 0; /* whether to let the window manager control XMenu */
/* include config variable */
@ -153,6 +157,7 @@ main(int argc, char *argv[])
}
/* initializers */
initmonitor();
initresources();
initdc();
initconfig();
@ -187,12 +192,13 @@ main(int argc, char *argv[])
return 0;
}
/* parse position string from -p, put results on config.x and config.y */
/* parse position string from -p,
* put results on config.posx, config.posy, and config.monitor */
static void
parseposition(const char *optarg)
parseposition(char *optarg)
{
long n;
const char *s = optarg;
char *s = optarg;
char *endp;
n = strtol(s, &endp, 10);
@ -201,9 +207,24 @@ parseposition(const char *optarg)
config.posx = n;
s = endp+1;
n = strtol(s, &endp, 10);
if (errno == ERANGE || n > INT_MAX || n < 0 || endp == s || *endp != '\0')
if (errno == ERANGE || n > INT_MAX || n < 0 || endp == s)
goto error;
config.posy = n;
if (*endp == ':') {
s = endp+1;
mflag = 1;
if (strncasecmp(s, "CUR", 3) == 0) {
config.monitor = -1;
endp = s+3;
} else {
n = strtol(s, &endp, 10);
if (errno == ERANGE || n > INT_MAX || n < 0 || endp == s || *endp != '\0')
goto error;
config.monitor = n;
}
} else if (*endp != '\0') {
goto error;
}
return;
@ -253,6 +274,54 @@ ealloccolor(const char *s, XftColor *color)
errx(1, "cannot allocate color: %s", s);
}
/* query monitor information and cursor position */
static void
initmonitor(void)
{
XineramaScreenInfo *info = NULL;
Window dw; /* dummy variable */
int di; /* dummy variable */
unsigned du; /* dummy variable */
int cursx, cursy; /* cursor position */
int nmons;
int i;
XQueryPointer(dpy, rootwin, &dw, &dw, &cursx, &cursy, &di, &di, &du);
mon.x = mon.y = 0;
mon.w = DisplayWidth(dpy, screen);
mon.h = DisplayHeight(dpy, screen);
if ((info = XineramaQueryScreens(dpy, &nmons)) != NULL) {
int selmon = 0;
if (!mflag || (mflag && (config.monitor < 0 || config.monitor >= nmons))) {
for (i = 0; i < nmons; i++) {
if (cursx >= info[i].x_org && cursx <= info[i].x_org + info[i].width &&
cursy >= info[i].y_org && cursy <= info[i].y_org + info[i].height) {
selmon = i;
break;
}
}
} else {
selmon = config.monitor;
}
mon.x = info[selmon].x_org;
mon.y = info[selmon].y_org;
mon.w = info[selmon].width;
mon.h = info[selmon].height;
}
if (!pflag) {
config.posx = cursx;
config.posy = cursy;
} else if (mflag) {
config.posx += mon.x;
config.posy += mon.y;
}
}
/* read xrdb for configuration options */
static void
initresources(void)
@ -325,12 +394,6 @@ initdc(void)
static void
initconfig(void)
{
Window dw; /* dummy variable */
int di; /* dummy variable */
unsigned du; /* dummy variable */
if (!pflag) /* if the user haven't specified a position, use cursor position*/
XQueryPointer(dpy, rootwin, &dw, &dw, &config.posx, &config.posy, &di, &di, &du);
config.screenw = DisplayWidth(dpy, screen);
config.screenh = DisplayHeight(dpy, screen);
config.iconsize = config.height_pixels - config.iconpadding * 2;
@ -557,7 +620,7 @@ getnextutf8char(const char *s, const char **next_ret)
s++;
for (i = 1; i < usize; i++) {
*next_ret = s+1;
/* if byte is EOS or is not a continuation byte, return unknown */
/* if byte is nul or is not a continuation byte, return unknown */
if (*s == '\0' || ((unsigned char)*s & utfmask[0]) != utfbyte[0])
return unknown;
/* 6 is the number of relevant bits in the continuation byte */
@ -671,27 +734,31 @@ setupmenupos(struct Menu *menu)
width = menu->w + config.border_pixels * 2;
height = menu->h + config.border_pixels * 2;
if (menu->parent == NULL) { /* if root menu, calculate in respect to cursor */
if (pflag || config.screenw - config.posx >= menu->w)
if (pflag || (config.posx > mon.x && mon.x + mon.w - config.posx >= width))
menu->x = config.posx;
else if (config.posx > width)
menu->x = config.posx - width;
if (pflag || config.screenh - config.posy >= height)
if (pflag || (config.posy > mon.y && mon.y + mon.h - config.posy >= height))
menu->y = config.posy;
else if (config.screenh > height)
menu->y = config.screenh - height;
menu->y = mon.y + mon.h - height;
} else { /* else, calculate in respect to parent menu */
if (config.screenw - (menu->parent->x + menu->parent->w + config.border_pixels + config.gap_pixels) >= width)
menu->x = menu->parent->x + menu->parent->w + config.border_pixels + config.gap_pixels;
int parentwidth;
parentwidth = menu->parent->x + menu->parent->w + config.border_pixels + config.gap_pixels;
if (mon.x + mon.w - parentwidth >= width)
menu->x = parentwidth;
else if (menu->parent->x > menu->w + config.border_pixels + config.gap_pixels)
menu->x = menu->parent->x - menu->w - config.border_pixels - config.gap_pixels;
if (config.screenh - (menu->caller->y + menu->parent->y) > height)
if (mon.y + mon.h - (menu->caller->y + menu->parent->y) > height)
menu->y = menu->caller->y + menu->parent->y;
else if (config.screenh - menu->parent->y > height)
else if (mon.y + mon.h - menu->parent->y > height)
menu->y = menu->parent->y;
else if (config.screenh > height)
menu->y = config.screenh - height;
else if (mon.y + mon.h > height)
menu->y = mon.y + mon.h - height;
}
}
@ -871,8 +938,8 @@ drawitems(struct Menu *menu)
if (item->file != NULL && !iflag) {
item->icon = loadicon(item->file);
imlib_context_set_drawable(item->sel);
imlib_context_set_image(item->icon);
imlib_context_set_drawable(item->sel);
imlib_render_image_on_drawable(config.horzpadding, config.iconpadding);
imlib_context_set_drawable(item->unsel);
imlib_render_image_on_drawable(config.horzpadding, config.iconpadding);

14
xmenu.h
View File

@ -36,10 +36,13 @@ struct Config {
int iconpadding;
int horzpadding;
/* the values below are computed by xmenu */
/* the values below are set by options */
int monitor;
int posx, posy; /* rootmenu position */
/* the value below is computed by xmenu */
int iconsize;
int posx, posy; /* cursor position */
int screenw, screenh; /* screen width and height */
int screenw, screenh; /* screen width and height */
};
/* draw context structure */
@ -70,6 +73,11 @@ struct Item {
Imlib_Image icon;
};
/* monitor and cursor geometry structure */
struct Monitor {
int x, y, w, h; /* monitor geometry */
};
/* menu structure */
struct Menu {
struct Menu *parent; /* parent menu */