wmii/cmd/wm/frame.c

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/*
* (C)opyright MMIV-MMV Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include <assert.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "wm.h"
static void select_client(void *obj, char *arg);
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static void handle_after_write_frame(IXPServer * s, File * file);
static void handle_before_read_frame(IXPServer * s, File * file);
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/* action table for /frame/?/ namespace */
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Action frame_acttbl[] = {
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{"select", select_client},
{0, 0}
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};
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Frame *
alloc_frame(XRectangle * r)
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{
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XSetWindowAttributes wa;
static int id = 0;
char buf[MAX_BUF];
Frame *f = (Frame *) cext_emallocz(sizeof(Frame));
int bw, th;
f->rect = *r;
f->cursor = normal_cursor;
snprintf(buf, MAX_BUF, "/detached/%d", id);
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f->file[F_PREFIX] = ixp_create(ixps, buf);
snprintf(buf, MAX_BUF, "/detached/%d/name", id);
f->file[F_NAME] = ixp_create(ixps, buf);
f->file[F_NAME]->before_read = handle_before_read_frame;
snprintf(buf, MAX_BUF, "/detached/%d/ctl", id);
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f->file[F_CTL] = ixp_create(ixps, buf);
f->file[F_CTL]->after_write = handle_after_write_frame;
snprintf(buf, MAX_BUF, "/detached/%d/geometry", id);
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f->file[F_GEOMETRY] = ixp_create(ixps, buf);
f->file[F_GEOMETRY]->before_read = handle_before_read_frame;
f->file[F_GEOMETRY]->after_write = handle_after_write_frame;
snprintf(buf, MAX_BUF, "/detached/%d/border", id);
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f->file[F_BORDER] =
wmii_create_ixpfile(ixps, buf, def[WM_BORDER]->content);
f->file[F_BORDER]->after_write = handle_after_write_frame;
snprintf(buf, MAX_BUF, "/detached/%d/tab", id);
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f->file[F_TAB] = wmii_create_ixpfile(ixps, buf, def[WM_TAB]->content);
f->file[F_TAB]->after_write = handle_after_write_frame;
snprintf(buf, MAX_BUF, "/detached/%d/handleinc", id);
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f->file[F_HANDLE_INC] =
wmii_create_ixpfile(ixps, buf, def[WM_HANDLE_INC]->content);
f->file[F_HANDLE_INC]->after_write = handle_after_write_frame;
id++;
wa.override_redirect = 1;
wa.background_pixmap = ParentRelative;
wa.event_mask =
SubstructureRedirectMask | ExposureMask | ButtonPressMask |
PointerMotionMask;
bw = border_width(f);
th = tab_height(f);
f->rect.width += 2 * bw;
f->rect.height += bw + (th ? th : bw);
f->win = XCreateWindow(dpy, root, f->rect.x, f->rect.y, f->rect.width,
f->rect.height, 0, DefaultDepth(dpy,
screen_num),
CopyFromParent, DefaultVisual(dpy, screen_num),
CWOverrideRedirect | CWBackPixmap | CWEventMask,
&wa);
XDefineCursor(dpy, f->win, f->cursor);
f->gc = XCreateGC(dpy, f->win, 0, 0);
XSync(dpy, False);
return f;
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}
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Frame *
win_to_frame(Window w)
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{
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Page *p;
for(p = pages; p; p = p->next) {
Frame *f;
for(f = p->managed->layout->frames(p->managed); f; f = f->next)
if(f->win == w)
return f;
for(f = p->floating->layout->frames(p->floating); f; f = f->next)
if(f->win == w)
return f;
}
return nil;
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}
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void
destroy_frame(Frame * f)
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{
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XFreeGC(dpy, f->gc);
XDestroyWindow(dpy, f->win);
ixp_remove_file(ixps, f->file[F_PREFIX]);
free(f);
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}
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unsigned int
tab_height(Frame * f)
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{
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if(blitz_strtonum(f->file[F_TAB]->content, 0, 1))
return font->ascent + font->descent + 4;
return 0;
}
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unsigned int
border_width(Frame * f)
{
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if(blitz_strtonum(f->file[F_BORDER]->content, 0, 1))
return BORDER_WIDTH;
return 0;
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}
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static void
check_dimensions(Frame * f, unsigned int tabh, unsigned int bw)
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{
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Client *c = sel_client();
if(!c)
return;
if(c->size.flags & PMinSize) {
if(f->rect.width - 2 * bw < c->size.min_width) {
f->rect.width = c->size.min_width + 2 * bw;
}
if(f->rect.height - bw - (tabh ? tabh : bw) < c->size.min_height) {
f->rect.height = c->size.min_height + bw + (tabh ? tabh : bw);
}
}
if(c->size.flags & PMaxSize) {
if(f->rect.width - 2 * bw > c->size.max_width) {
f->rect.width = c->size.max_width + 2 * bw;
}
if(f->rect.height - bw - (tabh ? tabh : bw) > c->size.max_height) {
f->rect.height = c->size.max_height + bw + (tabh ? tabh : bw);
}
}
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}
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static void
resize_incremental(Frame * f, unsigned int tabh, unsigned int bw)
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{
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Client *c = f->sel;
if(!c)
return;
/* increment stuff, see chapter 4.1.2.3 of the ICCCM Manual */
if(c->size.flags & PResizeInc) {
int base_width = 0, base_height = 0;
if(c->size.flags & PBaseSize) {
base_width = c->size.base_width;
base_height = c->size.base_height;
} else if(c->size.flags & PMinSize) {
/* base_{width,height} default to min_{width,height} */
base_width = c->size.min_width;
base_height = c->size.min_height;
}
/* client_width = base_width + i * c->size.width_inc for an integer i */
f->rect.width -=
(f->rect.width - 2 * bw - base_width) % c->size.width_inc;
f->rect.height -=
(f->rect.height - bw - (tabh ? tabh : bw) -
base_height) % c->size.height_inc;
}
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}
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void
resize_frame(Frame * f, XRectangle * r, XPoint * pt)
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{
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Area *a = f->area;
unsigned int tabh = tab_height(f);
unsigned int bw = border_width(f);
Client *c;
a->layout->resize(f, r, pt);
/* resize if client requests special size */
check_dimensions(f, tabh, bw);
if(f->file[F_HANDLE_INC]->content
&& ((char *) f->file[F_HANDLE_INC]->content)[0] == '1')
resize_incremental(f, tabh, bw);
XMoveResizeWindow(dpy, f->win, f->rect.x, f->rect.y, f->rect.width,
f->rect.height);
for(c = f->clients; c; c = c->next) {
c->rect.x = bw;
c->rect.y = tabh ? tabh : bw;
c->rect.width = c->frame->rect.width - 2 * bw;
c->rect.height = c->frame->rect.height - bw - (tabh ? tabh : bw);
XMoveResizeWindow(dpy, c->win, c->rect.x, c->rect.y, c->rect.width,
c->rect.height);
configure_client(c);
}
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}
/**
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* Assumes following file:
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*
* ./sel-style/text-font "<value>"
* ./sel-style/text-size "<int>"
* ./sel-style/text-color "#RRGGBBAA"
* ./sel-style/bg-color "#RRGGBBAA"
* ./sel-style/border-color "#RRGGBBAA [#RRGGBBAA [#RRGGBBAA [#RRGGBBAA]]]"
* ./norm-style/text-font "<value>"
* ./norm-style/text-size "<int>"
* ./norm-style/text-color "#RRGGBBAA"
* ./norm-style/bg-color "#RRGGBBAA"
* ./norm-style/border-color "#RRGGBBAA [#RRGGBBAA [#RRGGBBAA [#RRGGBBAA]]]"
*/
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void
draw_frame(Frame * f)
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{
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Draw d = { 0 };
int bw = border_width(f);
XRectangle notch;
if(bw) {
notch.x = bw;
notch.y = bw;
notch.width = f->rect.width - 2 * bw;
notch.height = f->rect.height - 2 * bw;
d.drawable = f->win;
d.font = font;
d.gc = f->gc;
/* define ground plate (i = 0) */
if(f == sel_frame()) {
d.bg =
blitz_loadcolor(dpy, screen_num,
def[WM_SEL_BG_COLOR]->content);
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d.fg =
blitz_loadcolor(dpy, screen_num,
def[WM_SEL_FG_COLOR]->content);
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d.border =
blitz_loadcolor(dpy, screen_num,
def[WM_SEL_BORDER_COLOR]->content);
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} else {
d.bg =
blitz_loadcolor(dpy, screen_num,
def[WM_NORM_BG_COLOR]->content);
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d.fg =
blitz_loadcolor(dpy, screen_num,
def[WM_NORM_FG_COLOR]->content);
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d.border =
blitz_loadcolor(dpy, screen_num,
def[WM_NORM_BORDER_COLOR]->content);
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}
d.rect = f->rect;
d.rect.x = d.rect.y = 0;
d.notch = &notch;
blitz_drawlabel(dpy, &d);
}
draw_clients(f);
XSync(dpy, False);
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}
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void
handle_frame_buttonpress(XButtonEvent * e, Frame * f)
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{
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Align align;
int bindex, cindex = e->x / (f->rect.width / f->nclients);
f->sel = clientat(f->clients, cindex);
if(e->button == Button1) {
align = cursor_to_align(f->cursor);
if(align == CENTER)
mouse_move(f);
else
mouse_resize(f, align);
f->area->layout->focus(f, False);
return;
}
f->area->layout->focus(f, False);
bindex = WM_EVENT_B2PRESS - 2 + e->button;
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/* frame mouse handling */
if(f->file[bindex]->content)
wmii_spawn(dpy, f->file[bindex]->content);
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}
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void
attach_client_to_frame(Frame * f, Client * client)
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{
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Client *c;
for(c = f->clients; c && c->next; c = c->next);
if(!c) {
f->clients = client;
client->prev = client->next = nil;
} else {
client->prev = c;
client->next = nil;
c->next = client;
}
f->nclients++;
f->sel = client;
client->frame = f;
resize_frame(f, &f->rect, 0);
reparent_client(client, f->win, client->rect.x, client->rect.y);
show_client(client);
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}
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void
detach_client_from_frame(Client * c, Bool unmap)
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{
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Frame *f = c->frame;
Client *cl;
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c->frame = nil;
if(f->sel == c) {
if(c->prev)
f->sel = c->prev;
else
f->sel = nil;
}
if(f->clients == c) {
if(c->next)
c->next->prev = nil;
f->clients = c->next;
} else {
c->prev->next = c->next;
if(c->next)
c->next->prev = c->prev;
}
f->nclients--;
if(!f->sel)
f->sel = f->clients;
if(!c->destroyed) {
if(!unmap) {
attach_detached(c);
hide_client(c);
}
c->rect.x = f->rect.x;
c->rect.y = f->rect.y;
reparent_client(c, root, c->rect.x, c->rect.y);
}
if((cl = sel_client())) {
cl->frame->area->layout->focus(cl->frame, False);
focus_client(cl);
}
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}
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static void
select_client(void *obj, char *arg)
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{
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Client *c;
Frame *f = obj;
if(!f || !arg || !f->clients->next)
return;
if(!strncmp(arg, "prev", 5))
c = f->sel->prev;
else if(!strncmp(arg, "next", 5))
c = f->sel->next;
else
c = clientat(f->clients, blitz_strtonum(arg, 0, f->nclients - 1));
focus_client(c);
f->area->layout->focus(f, False);
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}
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static Frame *
handle_before_read_frames(IXPServer * s, File * file, Area * a)
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{
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Frame *f;
char buf[32];
for(f = a->layout->frames(a); f; f = f->next) {
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if(file == f->file[F_GEOMETRY]) {
snprintf(buf, sizeof(buf), "%d %d %d %d", f->rect.x, f->rect.y,
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f->rect.width, f->rect.height);
if(file->content)
free(file->content);
file->content = cext_estrdup(buf);
file->size = strlen(buf);
return f;
}
else if(file == f->file[F_NAME]) {
if(file->content)
free(file->content);
if(f->sel && f->sel->name) {
file->content = cext_estrdup(f->sel->name);
file->size = strlen(f->sel->name);
}
else {
file->content = nil;
file->size = 0;
}
return f;
}
}
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return nil;
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}
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static void
handle_before_read_frame(IXPServer * s, File * file)
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{
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Page *p;
for(p = pages; p; p = p->next) {
if(handle_before_read_frames(s, file, p->managed)
|| handle_before_read_frames(s, file, p->floating))
return;
}
}
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static Frame *
handle_after_write_frames(IXPServer * s, File * file, Area * a)
{
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Frame *f;
for(f = a->layout->frames(a); f; f = f->next) {
if(file == f->file[F_CTL]) {
run_action(file, f, frame_acttbl);
return f;
}
if(file == f->file[F_TAB] || file == f->file[F_BORDER]
|| file == f->file[F_HANDLE_INC]) {
f->area->layout->arrange(f->area);
return f;
} else if(file == f->file[F_GEOMETRY]) {
char *geom = f->file[F_GEOMETRY]->content;
if(geom && strrchr(geom, ' ')) {
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XRectangle frect = f->rect;
blitz_strtorect(&rect, &frect, geom);
resize_frame(f, &frect, 0);
}
return f;
}
}
return nil;
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}
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static void
handle_after_write_frame(IXPServer * s, File * file)
{
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Page *p;
for(p = pages; p; p = p->next) {
if(handle_after_write_frames(s, file, p->managed)
|| handle_after_write_frames(s, file, p->floating))
return;
}
}
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Frame *
sel_frame()
{
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Area *a = sel_area();
if(!a)
return nil;
return a->layout->sel(a);
}