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DWM/client.c

499 lines
8.5 KiB

/*
* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include "dwm.h"
static void (*arrange)(Arg *) = floating;
static Client *
next(Client *c)
{
for(c = c->next; c && !c->tags[tsel]; c = c->next);
return c;
}
static Client *
prev(Client *c)
{
for(c = c->prev; c && !c->tags[tsel]; c = c->prev);
return c;
}
void
max(Arg *arg)
{
if(!csel)
return;
csel->x = sx;
csel->y = sy;
csel->w = sw - 2 * csel->border;
csel->h = sh - 2 * csel->border;
craise(csel);
resize(csel);
discard_events(EnterWindowMask);
}
void
tag(Arg *arg)
{
if(!csel)
return;
if(arg->i == tsel)
return;
if(csel->tags[arg->i])
csel->tags[arg->i] = NULL; /* toggle tag */
else
csel->tags[arg->i] = tags[arg->i];
arrange(NULL);
}
void
floating(Arg *arg)
{
Client *c;
arrange = floating;
if(!csel)
return;
for(c = csel; c; c = next(c))
resize(c);
discard_events(EnterWindowMask);
}
void
tiling(Arg *arg)
{
Client *c;
int n, cols, rows, gw, gh, i, j;
float rt, fd;
arrange = tiling;
if(!csel)
return;
for(n = 0, c = csel; c; c = next(c), n++);
rt = sqrt(n);
if(modff(rt, &fd) < 0.5)
rows = floor(rt);
else
rows = ceil(rt);
if(rows * rows < n)
cols = rows + 1;
else
cols = rows;
gw = (sw - 2) / cols;
gh = (sh - 2) / rows;
for(i = j = 0, c = csel; c; c = next(c)) {
c->x = i * gw;
c->y = j * gh;
c->w = gw;
c->h = gh;
resize(c);
if(++i == cols) {
j++;
i = 0;
}
}
discard_events(EnterWindowMask);
}
void
prevc(Arg *arg)
{
Client *c;
if(!csel)
return;
if(!(c = prev(csel)))
c = prev(cend);
if(c) {
craise(c);
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w / 2, c->h / 2);
focus(c);
}
}
void
nextc(Arg *arg)
{
Client *c;
if(!csel)
return;
if(!(c = next(csel)))
c = next(cstart);
if(c) {
craise(c);
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w / 2, c->h / 2);
focus(c);
}
}
void
ckill(Arg *arg)
{
Client *c = csel;
if(!c)
return;
if(c->proto & WM_PROTOCOL_DELWIN)
send_message(c->win, wm_atom[WMProtocols], wm_atom[WMDelete]);
else
XKillClient(dpy, c->win);
}
static void
resize_title(Client *c)
{
int i;
c->tw = 0;
for(i = 0; i < TLast; i++)
if(c->tags[i])
c->tw += textw(c->tags[i]) + dc.font.height;
c->tw += textw(c->name) + dc.font.height;
if(c->tw > c->w)
c->tw = c->w + 2;
c->tx = c->x + c->w - c->tw + 2;
c->ty = c->y;
XMoveResizeWindow(dpy, c->title, c->tx, c->ty, c->tw, c->th);
}
void
update_name(Client *c)
{
XTextProperty name;
int n;
char **list = NULL;
name.nitems = 0;
c->name[0] = 0;
XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
if(!name.nitems)
XGetWMName(dpy, c->win, &name);
if(!name.nitems)
return;
if(name.encoding == XA_STRING)
strncpy(c->name, (char *)name.value, sizeof(c->name));
else {
if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
&& n > 0 && *list)
{
strncpy(c->name, *list, sizeof(c->name));
XFreeStringList(list);
}
}
XFree(name.value);
resize_title(c);
}
void
update_size(Client *c)
{
XSizeHints size;
long msize;
if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
size.flags = PSize;
c->flags = size.flags;
if(c->flags & PBaseSize) {
c->basew = size.base_width;
c->baseh = size.base_height;
}
else
c->basew = c->baseh = 0;
if(c->flags & PResizeInc) {
c->incw = size.width_inc;
c->inch = size.height_inc;
}
else
c->incw = c->inch = 0;
if(c->flags & PMaxSize) {
c->maxw = size.max_width;
c->maxh = size.max_height;
}
else
c->maxw = c->maxh = 0;
if(c->flags & PMinSize) {
c->minw = size.min_width;
c->minh = size.min_height;
}
else
c->minw = c->minh = 0;
if(c->flags & PWinGravity)
c->grav = size.win_gravity;
else
c->grav = NorthWestGravity;
}
void
craise(Client *c)
{
XRaiseWindow(dpy, c->win);
XRaiseWindow(dpy, c->title);
}
void
lower(Client *c)
{
XLowerWindow(dpy, c->title);
XLowerWindow(dpy, c->win);
}
void
focus(Client *c)
{
if(csel && csel != c) {
XSetWindowBorder(dpy, csel->win, dc.bg);
XMapWindow(dpy, csel->title);
draw_client(csel);
}
csel = c;
XUnmapWindow(dpy, c->title);
XSetWindowBorder(dpy, c->win, dc.fg);
draw_client(c);
XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
XFlush(dpy);
discard_events(EnterWindowMask);
}
void
manage(Window w, XWindowAttributes *wa)
{
Client *c;
XSetWindowAttributes twa;
c = emallocz(sizeof(Client));
c->win = w;
c->tx = c->x = wa->x;
c->ty = c->y = wa->y;
c->tw = c->w = wa->width;
c->h = wa->height;
c->th = th;
c->border = 1;
update_size(c);
XSelectInput(dpy, c->win,
StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
XGetTransientForHint(dpy, c->win, &c->trans);
twa.override_redirect = 1;
twa.background_pixmap = ParentRelative;
twa.event_mask = ExposureMask;
c->tags[tsel] = tags[tsel];
c->title = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
0, DefaultDepth(dpy, screen), CopyFromParent,
DefaultVisual(dpy, screen),
CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
update_name(c);
if(!cstart)
cstart = cend = c;
else {
cend->next = c;
c->prev = cend;
cend = c;
}
XSetWindowBorderWidth(dpy, c->win, 1);
XMapRaised(dpy, c->win);
XMapRaised(dpy, c->title);
XGrabButton(dpy, Button1, Mod1Mask, c->win, False, ButtonPressMask,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button2, Mod1Mask, c->win, False, ButtonPressMask,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, Button3, Mod1Mask, c->win, False, ButtonPressMask,
GrabModeAsync, GrabModeSync, None, None);
arrange(NULL);
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w / 2, c->h / 2);
focus(c);
}
void
gravitate(Client *c, Bool invert)
{
int dx = 0, dy = 0;
switch(c->grav) {
case StaticGravity:
case NorthWestGravity:
case NorthGravity:
case NorthEastGravity:
dy = c->border;
break;
case EastGravity:
case CenterGravity:
case WestGravity:
dy = -(c->h / 2) + c->border;
break;
case SouthEastGravity:
case SouthGravity:
case SouthWestGravity:
dy = -c->h;
break;
default:
break;
}
switch (c->grav) {
case StaticGravity:
case NorthWestGravity:
case WestGravity:
case SouthWestGravity:
dx = c->border;
break;
case NorthGravity:
case CenterGravity:
case SouthGravity:
dx = -(c->w / 2) + c->border;
break;
case NorthEastGravity:
case EastGravity:
case SouthEastGravity:
dx = -(c->w + c->border);
break;
default:
break;
}
if(invert) {
dx = -dx;
dy = -dy;
}
c->x += dx;
c->y += dy;
}
void
resize(Client *c)
{
XConfigureEvent e;
if(c->incw)
c->w -= (c->w - c->basew) % c->incw;
if(c->inch)
c->h -= (c->h - c->baseh) % c->inch;
if(c->minw && c->w < c->minw)
c->w = c->minw;
if(c->minh && c->h < c->minh)
c->h = c->minh;
if(c->maxw && c->w > c->maxw)
c->w = c->maxw;
if(c->maxh && c->h > c->maxh)
c->h = c->maxh;
resize_title(c);
XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
e.type = ConfigureNotify;
e.event = c->win;
e.window = c->win;
e.x = c->x;
e.y = c->y;
e.width = c->w;
e.height = c->h;
e.border_width = c->border;
e.above = None;
e.override_redirect = False;
XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
XFlush(dpy);
}
static int
dummy_error_handler(Display *dsply, XErrorEvent *err)
{
return 0;
}
void
unmanage(Client *c)
{
XGrabServer(dpy);
XSetErrorHandler(dummy_error_handler);
XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
XDestroyWindow(dpy, c->title);
if(c->prev) {
c->prev->next = c->next;
if(csel == c)
csel = c->prev;
}
if(c->next) {
c->next->prev = c->prev;
if(csel == c)
csel = c->next;
}
if(cstart == c)
cstart = c->next;
if(cend == c)
cend = c->prev;
free(c);
XFlush(dpy);
XSetErrorHandler(error_handler);
XUngrabServer(dpy);
arrange(NULL);
if(csel)
focus(csel);
}
Client *
gettitle(Window w)
{
Client *c;
for(c = cstart; c; c = c->next)
if(c->title == w)
return c;
return NULL;
}
Client *
getclient(Window w)
{
Client *c;
for(c = cstart; c; c = c->next)
if(c->win == w)
return c;
return NULL;
}
void
draw_client(Client *c)
{
int i;
if(c == csel)
return;
dc.x = dc.y = 0;
dc.h = c->th;
dc.w = 0;
for(i = 0; i < TLast; i++) {
if(c->tags[i]) {
dc.x += dc.w;
dc.w = textw(c->tags[i]) + dc.font.height;
draw(True, c->tags[i]);
}
}
dc.x += dc.w;
dc.w = textw(c->name) + dc.font.height;
draw(True, c->name);
XCopyArea(dpy, dc.drawable, c->title, dc.gc,
0, 0, c->tw, c->th, 0, 0);
XFlush(dpy);
}