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/*
* (C)opyright MMIV-MMV Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "wmiiwm.h"
#include "layout.h"
#include <cext.h>
/* grid layout definition */
static void arrange_grid(Page * p);
static void init_grid(Page * p);
static void deinit_grid(Page * p);
static void manage_grid(Frame * f);
static void unmanage_grid(Frame * f);
static void resize_grid(Frame * f, XRectangle * new, XPoint * pt);
static Frame *select_grid(Frame * f, char *what);
static Layout grid =
{"grid", init_grid, deinit_grid, arrange_grid, manage_grid,
unmanage_grid, resize_grid, select_grid
};
void
init_layout_grid()
{
layouts =
(Layout **) attach_item_end((void **) layouts, &grid,
sizeof(Layout *));
}
static void
arrange_grid(Page * p)
{
unsigned int i, ic, ir, tw, th, rows, cols;
if (!p->managed)
return;
blitz_getbasegeometry((void **) p->managed, &ic, &cols, &rows);
th = p->managed_rect.height / rows;
tw = p->managed_rect.width / cols;
i = 0;
for (ir = 0; ir < rows; ir++) {
for (ic = 0; ic < cols; ic++) {
if (p->managed[i]) {
XRectangle *r = (XRectangle *) p->managed[i]->aux;
r->x = p->managed_rect.x + ic * tw;
r->y = p->managed_rect.y + ir * th;
r->width = tw;
r->height = th;
p->managed[i]->managed_rect = *r;
resize_frame(p->managed[i], &p->managed[i]->managed_rect,
0, 1);
} else
break;
i++;
}
}
}
static void
init_grid(Page * p)
{
int i;
for (i = 0; p->managed && p->managed[i]; i++)
p->managed[i]->aux = emalloc(sizeof(XRectangle));
}
static void
deinit_grid(Page * p)
{
int i;
for (i = 0; p->managed && p->managed[i]; i++) {
if (p->managed[i]->aux) {
free(p->managed[i]->aux);
p->managed[i]->aux = 0;
}
}
}
static void
manage_grid(Frame * f)
{
f->aux = emalloc(sizeof(XRectangle));
if (f->page)
arrange_grid(f->page);
}
static void
unmanage_grid(Frame * f)
{
if (f->aux) {
free(f->aux);
f->aux = 0;
}
if (f->page)
arrange_grid(f->page);
}
#define THRESHOLD 30
static void
drop_resize(Frame * f, XRectangle * new)
{
int diff;
unsigned int i, rows, cols, cr, cc, num, idx;
Page *p = f->page;
XRectangle *r;
if (!p || !p->managed)
return;
blitz_getbasegeometry((void **) p->managed, &i, &cols, &rows);
num = index_item((void **) p->managed, f);
cr = num / cols;
cc = num - cr * cols;
/* horizontal resize */
if (f->managed_rect.x == new->x && f->managed_rect.width != new->width) {
/* east direction resize */
if (cc == cols - 1)
return;
if (p->managed[cc + 1]
&& (new->x + new->width > p->managed[cc + 1]->managed_rect.x
+ p->managed[cc + 1]->managed_rect.width - THRESHOLD))
return;
diff = new->width - ((XRectangle *) f->aux)->width;
for (i = 0; i < rows; i++) {
idx = (i * cols) + cc;
if (p->managed[idx]) {
r = (XRectangle *) p->managed[idx]->aux;
r->width = new->width;
p->managed[idx]->managed_rect = *r;
resize_frame(p->managed[idx],
&p->managed[idx]->managed_rect, 0, 1);
}
idx = (i * cols) + (cc + 1);
if (p->managed[idx]) {
r = (XRectangle *) p->managed[idx]->aux;
r->x += diff;
r->width -= diff;
p->managed[idx]->managed_rect = *r;
resize_frame(p->managed[idx],
&p->managed[idx]->managed_rect, 0, 1);
}
}
}
if (f->managed_rect.x != new->x) {
/* west direction resize */
if (!cc)
return;
if (new->x < p->managed[cc - 1]->managed_rect.x + THRESHOLD)
return;
diff = new->width - ((XRectangle *) f->aux)->width;
for (i = 0; i < rows; i++) {
idx = (i * cols) + cc;
if (p->managed[idx]) {
r = (XRectangle *) p->managed[idx]->aux;
r->x -= diff;
r->width += diff;
p->managed[idx]->managed_rect = *r;
resize_frame(p->managed[idx],
&p->managed[idx]->managed_rect, 0, 1);
}
idx = (i * cols) + (cc - 1);
if (p->managed[idx]) {
r = (XRectangle *) p->managed[idx]->aux;
r->width -= diff;
p->managed[idx]->managed_rect = *r;
resize_frame(p->managed[idx],
&p->managed[idx]->managed_rect, 0, 1);
}
}
}
/* vertical resize */
if (f->managed_rect.y == new->y
&& f->managed_rect.height != new->height) {
/* south direction resize */
if (cr == rows - 1)
return;
if (p->managed[cr + 1]
&& (new->y + new->height >
p->managed[(cr + 1) * rows]->managed_rect.y +
p->managed[(cr + 1) * rows]->managed_rect.height -
THRESHOLD))
return;
diff = new->height - ((XRectangle *) f->aux)->height;
for (i = 0; i < cols; i++) {
idx = (cr * rows) + i;
if (p->managed[idx]) {
r = (XRectangle *) p->managed[idx]->aux;
r->height = new->height;
p->managed[idx]->managed_rect = *r;
resize_frame(p->managed[idx],
&p->managed[idx]->managed_rect, 0, 1);
}
idx = (cr + 1) * rows + i;
if (p->managed[idx]) {
r = (XRectangle *) p->managed[idx]->aux;
r->y += diff;
r->height -= diff;
p->managed[idx]->managed_rect = *r;
resize_frame(p->managed[idx],
&p->managed[idx]->managed_rect, 0, 1);
}
}
} else if (f->managed_rect.y != new->y) {
/* north direction resize */
if (!cr)
return;
if (new->y <
p->managed[(cr - 1) * rows]->managed_rect.y + THRESHOLD)
return;
diff = new->height - ((XRectangle *) f->aux)->height;
for (i = 0; i < cols; i++) {
idx = (cr * rows) + i;
if (p->managed[idx]) {
r = (XRectangle *) p->managed[idx]->aux;
r->y -= diff;
r->height += diff;
p->managed[idx]->managed_rect = *r;
resize_frame(p->managed[idx],
&p->managed[idx]->managed_rect, 0, 1);
}
idx = (cr - 1) * rows + i;
if (p->managed[idx]) {
r = (XRectangle *) p->managed[idx]->aux;
r->height -= diff;
p->managed[idx]->managed_rect = *r;
resize_frame(p->managed[idx],
&p->managed[idx]->managed_rect, 0, 1);
}
}
}
}
static void
resize_grid(Frame * f, XRectangle * new, XPoint * pt)
{
if ((f->managed_rect.width == new->width)
&& (f->managed_rect.height == new->height))
drop_move(f, new, pt);
else
drop_resize(f, new);
}
static unsigned int
get_current_frame_position(Frame * f)
{
Page *p = f->page;
unsigned int i;
for (i = 0; i < count_items((void **) p->managed); ++i)
if (p->managed[i] == f)
return i;
return -1;
}
static Frame *
select_grid(Frame * f, char *what)
{
Page *p = f->page;
unsigned int ic, cols, rows, pos;
int idx;
blitz_getbasegeometry((void **) p->managed, &ic, &cols, &rows);
pos = get_current_frame_position(f);
if (!strncmp(what, "prev", 5)) {
idx = index_prev_item((void **) p->managed, f);
if (idx >= 0)
return p->managed[idx];
} else if (!strncmp(what, "next", 5)) {
idx = index_next_item((void **) p->managed, f);
if (idx >= 0)
return p->managed[idx];
} else if (!strncmp(what, "south", 6)) {
if ((pos + cols) <= ic)
pos += cols;
else
pos %= cols;
return p->managed[pos];
} else if (!strncmp(what, "north", 6)) {
if (pos < cols)
pos = (rows - 1) * cols + pos;
else
pos -= cols;
return p->managed[pos];
} else if (!strncmp(what, "west", 5)) {
if (pos % cols == 0) {
pos += (cols - 1);
if (pos >= ic)
pos = ic - 1;
} else
pos--;
return p->managed[pos];
} else if (!strncmp(what, "east", 5)) {
if (pos % cols == (cols - 1))
pos -= (cols - 1);
else {
pos++;
if (pos >= ic)
pos = ic - 1;
}
return p->managed[pos];
}
return 0;
}
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