mirror of https://github.com/0intro/wmii
435 lines
8.2 KiB
C
435 lines
8.2 KiB
C
/* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
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* See LICENSE file for license details.
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*/
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#include "wmii.h"
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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static void place_client(Area *a, Client *c);
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Client *
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sel_client_of_area(Area *a) {
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if(a && a->sel)
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return a->sel->client;
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return nil;
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}
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Area *
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create_area(View *v, Area *pos, uint w) {
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static ushort id = 1;
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uint area_num, col_num, i;
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uint min_width;
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Area *a, **p;
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min_width = screen->rect.width/NCOL;
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p = pos ? &pos->next : &v->area;
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area_num = 0;
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i = 0;
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for(a = v->area; a != *p; a = a->next)
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area_num++, i++;
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for(; a; a = a->next) area_num++;
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col_num = max((area_num - 1), 0);
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if(w == 0) {
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if(col_num) {
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w = newcolw_of_view(v);
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if (w == 0)
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w = screen->rect.width / (col_num + 1);
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}
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else w = screen->rect.width;
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}
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if(w < min_width)
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w = min_width;
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if(col_num && (col_num * min_width + w) > screen->rect.width)
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return nil;
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if(pos)
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scale_view(v, screen->rect.width - w);
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a = emallocz(sizeof(Area));
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a->view = v;
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a->id = id++;
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a->rect = screen->rect;
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a->rect.height = screen->rect.height - screen->brect.height;
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a->mode = def.colmode;
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a->rect.width = w;
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a->frame = nil;
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a->sel = nil;
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a->next = *p;
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*p = a;
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if(a == v->area)
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a->floating = True;
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if((!v->sel) ||
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(v->sel->floating && v->area->next == a && a->next == nil))
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focus_area(a);
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if(i)
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write_event("CreateColumn %d\n", i);
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return a;
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}
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void
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destroy_area(Area *a) {
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Client *c;
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Area *ta;
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View *v;
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uint i;
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v = a->view;
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assert(!a->frame && "wmiiwm: fatal, destroying non-empty area");
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if(v->revert == a)
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v->revert = nil;
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for(c=client; c; c=c->next)
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if(c->revert == a)
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c->revert = nil;
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i = 1;
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for(ta=v->area; ta; ta=ta->next)
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if(ta->next == a) break;
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else i++;
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if(ta) {
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ta->next = a->next;
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if(ta->floating && ta->next)
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ta = ta->next;
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if(v->sel == a)
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focus_area(ta);
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}
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if(i) write_event("DestroyColumn %d\n", i);
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free(a);
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}
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void
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send_to_area(Area *to, Frame *f) {
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Area *from;
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assert(to->view == f->view);
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from = f->area;
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if(to->floating != from->floating) {
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XRectangle temp = f->revert;
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f->revert = f->rect;
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f->rect = temp;
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}
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f->client->revert = from;
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detach_from_area(f);
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attach_to_area(to, f, True);
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}
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void
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attach_to_area(Area *a, Frame *f, Bool send) {
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uint h, n_frame;
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Frame *ft;
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Client *c;
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View *v;
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v = a->view;
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c = f->client;
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h = 0;
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f->area = a;
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n_frame = 0;
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for(ft=a->frame; ft; ft=ft->anext)
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n_frame++;
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if(n_frame == 0)
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n_frame = 1;
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c->floating = a->floating;
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if(!a->floating)
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f->rect.height = a->rect.height / n_frame;
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insert_frame(a->sel, f, False);
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if(a->floating)
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place_client(a, c);
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focus_frame(f, False);
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resize_frame(f, &f->rect);
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if(!a->floating)
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arrange_column(a, False);
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else
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resize_frame(f, &f->rect);
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update_client_grab(f->client);
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if(a->frame)
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assert(a->sel);
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}
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void
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detach_from_area(Frame *f) {
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Frame *pr;
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Client *c;
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Area *a;
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View *v;
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Area *ta;
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uint i;
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a = f->area;
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v = a->view;
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c = f->client;
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for(pr = a->frame; pr; pr = pr->anext)
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if(pr->anext == f) break;
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remove_frame(f);
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if(a->sel == f) {
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if(!pr)
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pr = a->frame;
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if((a->view->sel == a) && (pr))
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focus_frame(pr, False);
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else
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a->sel = pr;
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}
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if(!a->floating) {
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if(a->frame)
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arrange_column(a, False);
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else {
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i = 0;
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for(ta=v->area; ta && ta != a; ta=ta->next)
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i++;
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if(v->area->next->next)
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destroy_area(a);
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else if(!a->frame && v->area->frame)
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/* focus floating area if it contains something */
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focus_area(v->area);
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arrange_view(v);
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}
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}
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else if(!a->frame) {
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if(c->trans) {
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/* focus area of transient, if possible */
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Client *cl = client_of_win(c->trans);
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if(cl && cl->frame) {
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a = cl->sel->area;
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if(a->view == v)
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focus_area(a);
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}
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}
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else if(v->area->next->frame)
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focus_area(v->area->next);
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}else
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assert(a->sel);
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}
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static void
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bit_twiddle(uint *field, uint width, uint x, uint y, Bool set) {
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enum { devisor = sizeof(uint) * 8 };
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uint bx, mask;
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bx = x / devisor;
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mask = 1 << x % devisor;
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if(set)
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field[y*width + bx] |= mask;
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else
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field[y*width + bx] &= ~mask;
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}
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static Bool
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bit_get(uint *field, uint width, uint x, uint y) {
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enum { devisor = sizeof(uint) * 8 };
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uint bx, mask;
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bx = x / devisor;
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mask = 1 << x % devisor;
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return (field[y*width + bx] & mask) != 0;
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}
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static void
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place_client(Area *a, Client *c) {
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enum { devisor = sizeof(uint) * 8 };
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enum { dx = 8, dy = 8 };
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static uint mwidth, mx, my;
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static uint *field = nil;
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BlitzAlign align;
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XPoint p1 = {0, 0};
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XPoint p2 = {0, 0};
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XRectangle *rects;
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Frame *f, *fr;
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Bool fit;
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uint i, j, x, y, cx, cy, maxx, maxy, diff, num;
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int snap;
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snap = screen->rect.height / 66;
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num = 0;
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fit = False;
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align = CENTER;
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f = c->sel;
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if(c->trans)
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return;
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if(c->rect.width >= a->rect.width
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|| c->rect.height >= a->rect.height
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|| c->size.flags & USPosition
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|| c->size.flags & PPosition)
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return;
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if(!field) {
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mx = screen->rect.width / dx;
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my = screen->rect.height / dy;
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mwidth = ceil((float)mx / devisor);
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field = emallocz(sizeof(uint) * mwidth * my);
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}
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memset(field, ~0, (sizeof(uint) * mwidth * my));
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for(fr=a->frame; fr; fr=fr->anext) {
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if(fr == f) {
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cx = f->rect.width / dx;
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cy = f->rect.height / dy;
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continue;
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}
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if(fr->rect.x < 0)
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x = 0;
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else
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x = fr->rect.x / dx;
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if(fr->rect.y < 0)
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y = 0;
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else
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y = fr->rect.y / dy;
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maxx = r_east(&fr->rect) / dx;
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maxy = r_south(&fr->rect) / dy;
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for(j = y; j < my && j < maxy; j++)
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for(i = x; i < mx && i < maxx; i++)
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bit_twiddle(field, mwidth, i, j, False);
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}
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for(y = 0; y < my; y++)
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for(x = 0; x < mx; x++) {
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if(bit_get(field, mwidth, x, y)) {
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for(i = x; (i < mx) && bit_get(field, mwidth, i, y); i++);
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for(j = y; (j < my) && bit_get(field, mwidth, x, j); j++);
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if(((i - x) * (j - y) > (p2.x - p1.x) * (p2.y - p1.y))
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&& (i - x > cx) && (j - y > cy))
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{
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fit = True;
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p1.x = x;
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p1.y = y;
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p2.x = i;
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p2.y = j;
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}
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}
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}
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if(fit) {
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p1.x *= dx;
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p1.y *= dy;
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}
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if(fit && (p1.x + f->rect.width < r_south(&a->rect)))
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f->rect.x = p1.x;
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else {
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diff = a->rect.width - f->rect.width;
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f->rect.x = a->rect.x + (random() % (diff ? diff : 1));
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}
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if(fit && (p1.y + f->rect.height < (r_south(&a->rect))))
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f->rect.y = p1.y;
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else {
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diff = a->rect.height - f->rect.height;
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f->rect.y = a->rect.y + (random() % (diff ? diff : 1));
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}
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rects = rects_of_view(a->view, &num, nil);
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snap_rect(rects, num, &f->rect, &align, snap);
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if(rects)
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free(rects);
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}
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void
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focus_area(Area *a) {
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Frame *f;
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View *v;
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Area *old_a;
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int i;
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v = a->view;
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f = a->sel;
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old_a = v->sel;
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v->sel = a;
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if((old_a)
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&& (a->floating != old_a->floating))
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v->revert = old_a;
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if(v != screen->sel)
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return;
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if(f)
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focus_client(f->client);
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else
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focus_client(nil);
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if(a != old_a) {
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i = 0;
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for(a = v->area; a != v->sel; a = a->next)
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i++;
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if(i)
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write_event("ColumnFocus %d\n", i);
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else
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write_event("FocusFloating\n");
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if(a->frame)
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write_event("ClientFocus 0x%x\n", a->sel->client->win);
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}
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}
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char *
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select_area(Area *a, char *arg) {
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Area *new;
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uint i;
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Frame *p, *f;
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View *v;
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static char Ebadvalue[] = "bad value";
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v = a->view;
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f = a->sel;
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if(!strncmp(arg, "toggle", 7)) {
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if(!a->floating)
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new = v->area;
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else if(v->revert)
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new = v->revert;
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else
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new = v->area->next;
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} else if(!strncmp(arg, "left", 5)) {
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if(a->floating)
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return Ebadvalue;
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for(new=v->area->next; new->next; new=new->next)
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if(new->next == a) break;
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} else if(!strncmp(arg, "right", 5)) {
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if(a->floating)
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return Ebadvalue;
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new = a->next ? a->next : v->area->next;
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}
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else if(!strncmp(arg, "up", 3)) {
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if(!f)
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return Ebadvalue;
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for(p=a->frame; p->anext; p=p->anext)
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if(p->anext == f) break;
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goto focus_frame;
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}
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else if(!strncmp(arg, "down", 5)) {
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if(!f)
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return Ebadvalue;
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p = f->anext ? f->anext : a->frame;
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goto focus_frame;
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}
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else if(!strncmp(arg, "~", 2)) {
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new = v->area;
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}
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else {
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if(sscanf(arg, "%u", &i) != 1 || i == 0)
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return Ebadvalue;
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for(new=v->area->next; new->next; new=new->next)
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if(!--i) break;
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}
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focus_area(new);
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return nil;
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focus_frame:
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frame_to_top(p);
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focus_frame(p, False);
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if(v == screen->sel)
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restack_view(v);
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flush_masked_events(EnterWindowMask);
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return nil;
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}
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