+/*
+ * Copyright (C) 2011 Andy Spencer <andy753421@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
#include <stdio.h>
#include <stdlib.h>
#include "sys.h"
#include "wm.h"
+#ifndef MODKEY
#define MODKEY alt
+#endif
+#ifndef MARGIN
#define MARGIN 0
+#endif
+#ifndef STACK
#define STACK 25
+#endif
/* Enums */
typedef enum {
split, stack, max, tab
} mode_t;
-
/* Window structure types */
struct win_wm { };
typedef struct {
- win_t *win;
- int height;
+ win_t *win; // the window
+ int height; // win height in _this_ tag
} row_t;
typedef struct {
- list_t *rows; // of row_t
- row_t *row;
- int width;
- mode_t mode;
+ list_t *rows; // of row_t
+ row_t *row; // focused row
+ int width; // column width
+ mode_t mode; // display mode
} col_t;
typedef struct {
- list_t *cols; // of col_t
- col_t *col;
- win_t *geom;
+ list_t *cols; // of col_t
+ col_t *col; // focused col
+ win_t *geom; // display size and position
} dpy_t;
typedef struct {
- list_t *dpys; // of dpy_t
- dpy_t *dpy;
- int name;
+ list_t *dpys; // of dpy_t
+ dpy_t *dpy; // focused dpy
+ int name; // tag name
} tag_t;
typedef struct {
- list_t *tags; // of tag_t
- tag_t *tag;
- win_t *root;
- list_t *screens;
+ list_t *tags; // of tag_t
+ tag_t *tag; // focused tag
+ win_t *root; // root/background window
+ list_t *screens; // display geometry
} wm_t;
-/* Mouse drag data */
-static drag_t move_mode;
-static list_t *move_lrow;
-static list_t *move_lcol;
-static ptr_t move_prev;
-static struct { int v, h; } move_dir;
-
-/* Window management data */
-static wm_t *wm;
+#define WIN(node) ((win_t*)(node)->data)
+#define ROW(node) ((row_t*)(node)->data)
+#define COL(node) ((col_t*)(node)->data)
+#define DPY(node) ((dpy_t*)(node)->data)
+#define TAG(node) ((tag_t*)(node)->data)
+
+#define tag_foreach(tag, dpy, col, row, win) \
+ for (list_t *dpy = tag ->dpys; dpy; dpy = dpy->next) \
+ for (list_t *col = DPY(dpy)->cols; col; col = col->next) \
+ for (list_t *row = COL(col)->rows; row; row = row->next) \
+ for (win_t *win = ROW(row)->win; win; win = NULL) \
+
+/* Window management data
+ * wm_* macros represent the currently focused item
+ * _only_ wm_focus protects against NULL pointers */
+static wm_t *wm;
#define wm_win wm->tag->dpy->col->row->win
#define wm_row wm->tag->dpy->col->row
#define wm_col wm->tag->dpy->col
#define wm_tag wm->tag
#define wm_focus (wm_tag && wm_dpy && wm_col && wm_row ? wm_win : NULL)
-#define ROW(l) ((row_t*)(l)->data)
-#define COL(l) ((col_t*)(l)->data)
-#define DPY(l) ((dpy_t*)(l)->data)
-#define TAG(l) ((tag_t*)(l)->data)
+/* Mouse drag data */
+static drag_t move_mode;
+static list_t *move_lrow;
+static list_t *move_lcol;
+static ptr_t move_prev;
+static struct { int v, h; } move_dir;
-/* Helper functions */
+/********************
+ * Helper functions *
+ ********************/
+/* Search for the target window in a given tag
+ * win may exist in other tags as well */
static int searchl(tag_t *tag, win_t *target,
list_t **_dpy, list_t **_col, list_t **_row)
{
- for (list_t *dpy = tag ->dpys; dpy; dpy = dpy->next)
- for (list_t *col = DPY(dpy)->cols; col; col = col->next)
- for (list_t *row = COL(col)->rows; row; row = row->next) {
- win_t *win = ROW(row)->win;
+ tag_foreach(tag, dpy, col, row, win) {
if (win == target) {
if (_dpy) *_dpy = dpy;
if (_col) *_col = col;
return 0;
}
+/* Set the mode for the windows column in the current tag */
static void set_mode(win_t *win, mode_t mode)
{
col_t *col;
- search(wm_tag, win, NULL, &col, NULL);
+ if (!search(wm_tag, win, NULL, &col, NULL))
+ return;
printf("set_mode: %p, %d -> %d\n",
col, col->mode, mode);
col->mode = mode;
wm_update();
}
+/* Focus the window in the current tag and record
+ * it as the currently focused window */
static void set_focus(win_t *win)
{
+ if (win == NULL || win == wm->root) {
+ sys_focus(wm->root);
+ return;
+ }
+
/* - Only grab mouse button on unfocused window,
* this prevents stealing all mouse clicks from client windows,
* - A better way may be to re-send mouse clicks to client windows
sys_focus(win);
}
+/* Save mouse start location when moving/resizing windows */
static void set_move(win_t *win, ptr_t ptr, drag_t drag)
{
printf("set_move: %d - %p@%d,%d\n",
if (drag == move || drag == resize) {
searchl(wm_tag, win, NULL, &move_lcol, &move_lrow);
move_prev = ptr;
- int my = win->y + (win->h/2);
- int mx = win->x + (win->w/2);
- move_dir.v = ptr.ry < my ? -1 : +1;
- move_dir.h = ptr.rx < mx ? -1 : +1;
+ int midy = win->y + (win->h/2);
+ int midx = win->x + (win->w/2);
+ move_dir.v = ptr.ry < midy ? -1 : +1;
+ move_dir.h = ptr.rx < midx ? -1 : +1;
}
}
+/* Print a text representation of the window layout
+ * Quite useful for debugging */
static void print_txt(void)
{
for (list_t *ltag = wm->tags; ltag; ltag = ltag->next) {
tag_t *tag = ltag->data;
- printf("tag: <%-9p [%p->%p] >%-9p - %d\n",
- ltag->prev, ltag, ltag->data, ltag->next, tag->name);
+ printf("tag: <%-9p [%p->%p] >%-9p !%-9p - %d\n",
+ ltag->prev, ltag, ltag->data, ltag->next,
+ tag->dpy, tag->name);
for (list_t *ldpy = tag->dpys; ldpy; ldpy = ldpy->next) {
dpy_t *dpy = ldpy->data;
win_t *geom = dpy->geom;
- printf(" dpy: <%-9p [%p->%p] >%-9p - %d,%d %dx%d\n",
+ printf(" dpy: <%-9p [%p->%p] >%-9p !%-9p - %d,%d %dx%d\n",
ldpy->prev, ldpy, ldpy->data, ldpy->next,
- geom->x, geom->y, geom->h, geom->w);
+ dpy->col, geom->x, geom->y, geom->h, geom->w);
for (list_t *lcol = dpy->cols; lcol; lcol = lcol->next) {
col_t *col = lcol->data;
- printf(" col: <%-9p [%p->%p] >%-9p - %dpx @ %d !!%p\n",
+ printf(" col: <%-9p [%p->%p] >%-9p !%-9p - %dpx @ %d\n",
lcol->prev, lcol, lcol->data, lcol->next,
- col->width, col->mode, col->row);
+ col->row, col->width, col->mode);
for (list_t *lrow = col->rows; lrow; lrow = lrow->next) {
row_t *row = lrow->data;
win_t *win = row->win;
- printf(" win: <%-9p [%p>>%p] >%-9p - %4dpx focus=%d%d\n",
+ printf(" win: <%-9p [%p>>%p] >%-9p !%-9p - %4dpx focus=%d%d\n",
lrow->prev, lrow, win, lrow->next,
- win->h, col->row == row, wm_focus == win);
+ win, win->h, col->row == row, wm_focus == win);
} } } }
}
+/* Cleanly remove a window from a tag
+ * Determines the new focused row/col
+ * Prunes empty lists */
static void cut_win(tag_t *tag, win_t *win)
{
list_t *ldpy, *lcol, *lrow;
}
}
-static void put_win(win_t *win, dpy_t *dpy, col_t *col)
+/* Insert a window at a given location
+ * The window is added immediately after the
+ * columns currently focused row */
+static void put_win(win_t *win, tag_t *tag, dpy_t *dpy, col_t *col)
{
row_t *row = new0(row_t);
row->win = win;
} else {
col->rows = list_insert(col->rows, row);
}
- wm_tag->dpy = dpy;
- wm_tag->dpy->col = col;
- wm_tag->dpy->col->row = row;
+ tag->dpy = dpy;
+ tag->dpy->col = col;
+ tag->dpy->col->row = row;
row->height = dpy->geom->h / MAX(nrows,1);
if (nrows == 0) {
}
}
+/* Move a window up, down, left, or right
+ * This handles moving with a column, between
+ * columns, and between multiple monitors. */
static void shift_window(win_t *win, int col, int row)
{
if (!win) return;
print_txt();
printf("shift_window: >>>\n");
list_t *ldpy, *lcol, *lrow;
- searchl(wm_tag, win, &ldpy, &lcol, &lrow);
+ if (!searchl(wm_tag, win, &ldpy, &lcol, &lrow))
+ return;
dpy_t *dpy = ldpy->data;
if (row != 0) {
+ /* Move with a column, just swap rows */
list_t *src = lrow, *dst = NULL;
if (row < 0) dst = src->prev;
if (row > 0) dst = src->next;
goto update;
}
} else {
+ /* Moving between columns */
int onlyrow = !lrow->prev && !lrow->next;
list_t *src = lcol, *dst = NULL;
if (col < 0) {
if (src->prev) {
+ /* Normal move between columns */
dst = src->prev;
} else if (!onlyrow) {
+ /* Create new column */
dpy->cols = list_insert(dpy->cols, new0(col_t));
dst = src->prev;
} else if (ldpy->prev) {
+ /* Move to next monitor */
dpy = ldpy->prev->data;
dst = list_last(dpy->cols);
} else {
+ /* We, shall, not, be,
+ * we shall not be moved */
return;
}
}
}
}
cut_win(wm_tag, win);
- put_win(win, dpy, dst ? dst->data : NULL);
+ put_win(win, wm_tag, dpy, dst ? dst->data : NULL);
goto update;
}
update:
wm_update();
}
+/* Get next/prev item, with wraparound */
static list_t *get_next(list_t *list, int forward)
{
list_t *next = forward ? list->next : list->prev;
}
return next;
}
+
+/* Move keyboard focus in a given direction */
static void shift_focus(int cols, int rows)
{
printf("shift_focus: %+d,%+d\n", cols, rows);
if (rows != 0 && wm_focus) {
+ /* Move focus up/down */
list_t *dpy, *col, *row;
- searchl(wm_tag, wm_focus, &dpy, &col, &row);
+ if (!searchl(wm_tag, wm_focus, &dpy, &col, &row))
+ return;
row_t *next = get_next(row, rows > 0)->data;
set_focus(next->win);
if (COL(col)->mode != split)
wm_update();
}
if (cols != 0) {
+ /* Move focus left/right */
list_t *dpy, *col, *row, *ndpy, *ncol = NULL;
if (wm_focus) {
- searchl(wm_tag, wm_focus, &dpy, &col, &row);
+ /* Currently focused on a window */
+ if (!searchl(wm_tag, wm_focus, &dpy, &col, &row))
+ return;
ncol = cols > 0 ? col->next : col->prev;
} else {
+ /* Currently focused on an empty display */
dpy = list_find(wm_tag->dpys, wm_dpy);
}
if (ncol == NULL) {
+ /* Moving focus to a different display */
ndpy = get_next(dpy, cols > 0);
ncol = cols > 0 ? DPY(ndpy)->cols :
list_last(DPY(ndpy)->cols);
}
}
+/* Allocate a new tag */
static tag_t *tag_new(list_t *screens, int name)
{
tag_t *tag = new0(tag_t);
return tag;
}
+/* Search for a tag
+ * If it does not exist it is based on the
+ * display geometry in wm->screens */
static tag_t *tag_find(int name)
{
tag_t *tag = NULL;
}
if (!tag) {
tag = tag_new(wm->screens, name);
- wm->tags = list_insert(wm->tags, tag);
+ wm->tags = list_append(wm->tags, tag);
}
return tag;
}
+/* Move the window from the current tag to the new tag
+ * Unlike wmii, only remove the current tag, not all tags */
static void tag_set(win_t *win, int name)
{
printf("tag_set: %p %d\n", win, name);
if (wm_tag->name == name)
return;
+ tag_t *tag = tag_find(name);
cut_win(wm_tag, win);
- win_t *focus = wm_focus;
+ put_win(win, tag, tag->dpy, tag->dpy->col);
+ set_focus(wm_focus);
+}
- tag_t *tag = tag_find(name);
- put_win(win, tag->dpy, tag->dpy->col);
- set_focus(focus);
+/* Switch to a different tag */
+static void tag_switch(int name)
+{
+ printf("tag_switch: %d\n", name);
+ if (wm_col == NULL || wm_row == NULL)
+ wm->tags = list_remove(wm->tags,
+ list_find(wm->tags, wm_tag));
+ wm_tag = tag_find(name);
}
-/* Window management functions */
-void wm_update_dpy(dpy_t *dpy)
+/* Tile all windows in the given display
+ * This performs all the actual window tiling
+ * Currently supports split, stack and maximized modes */
+static void wm_update_dpy(dpy_t *dpy)
{
int x=0, y=0; // Current window top-left position
- int tx=0, ty=0; // Total x/y size
- int mx=0, my=0; // Maximum x/y size (screen size)
- int sy=0; // Size of focused stack window
+ int tx=0, ty=0; // Total size (sum of initial col widths and row heights w/o margin)
+ int mx=0, my=0; // Maximum usable size (screen size minus margins)
+ int sy=0; // Stack size (height of focused stack window)
/* Scale horizontally */
x = dpy->geom->x;
mx = dpy->geom->w - (list_length(dpy->cols)+1)*MARGIN;
- for (list_t *lx = dpy->cols; lx; lx = lx->next)
- tx += COL(lx)->width;
- for (list_t *lx = dpy->cols; lx; lx = lx->next)
- COL(lx)->width *= (float)mx / tx;
+ for (list_t *lcol = dpy->cols; lcol; lcol = lcol->next)
+ tx += COL(lcol)->width;
+ for (list_t *lcol = dpy->cols; lcol; lcol = lcol->next)
+ COL(lcol)->width *= (float)mx / tx;
/* Scale each column vertically */
- for (list_t *lx = dpy->cols; lx; lx = lx->next) {
- col_t *col = lx->data;
+ for (list_t *lcol = dpy->cols; lcol; lcol = lcol->next) {
+ col_t *col = lcol->data;
+ int nrows = list_length(col->rows);
ty = 0;
- for (list_t *ly = col->rows; ly; ly = ly->next)
- ty += ROW(ly)->height;
+ for (list_t *lrow = col->rows; lrow; lrow = lrow->next)
+ ty += ROW(lrow)->height;
y = dpy->geom->y;
- my = dpy->geom->h - (list_length(col->rows)+1)*MARGIN;
- sy = my - (list_length(col->rows)-1)*STACK;
- for (list_t *ly = col->rows; ly; ly = ly->next) {
- win_t *win = ROW(ly)->win;
- win->h = ROW(ly)->height;
+ my = dpy->geom->h - (MARGIN + (nrows-1)* MARGIN + MARGIN);
+ sy = dpy->geom->h - (MARGIN + (nrows-1)*(MARGIN/2) + MARGIN)
+ - (nrows-1)* STACK;
+ for (list_t *lrow = col->rows; lrow; lrow = lrow->next) {
+ win_t *win = ROW(lrow)->win;
+ win->h = ROW(lrow)->height;
int height = 0;
switch (col->mode) {
case split:
sys_move(win, x+MARGIN, y+MARGIN,
col->width, win->h * ((float)my / ty));
height = win->h;
+ y += height + MARGIN;
break;
case stack:
- height = col->row->win == win ? sy : STACK;
+ if (lrow->next && ROW(lrow->next)->win == col->row->win) {
+ /* Hack to prevent flashing */
+ win_t *next = ROW(lrow->next)->win;
+ sys_move(next, x+MARGIN, y+MARGIN+STACK+MARGIN/2,
+ col->width, sy);
+ }
+ height = win == col->row->win ? sy : STACK;
sys_move(win, x+MARGIN, y+MARGIN,
col->width, height);
+ y += height + (MARGIN/2);
break;
case max:
case tab:
sys_raise(win);
break;
}
- y += height + MARGIN;
- ROW(ly)->height = win->h;
+ ROW(lrow)->height = win->h;
}
x += col->width + MARGIN;
}
}
+/*******************************
+ * Window management functions *
+ *******************************/
void wm_update(void)
{
/* Show/hide tags */
- for (list_t *ltag = wm ->tags; ltag; ltag = ltag->next)
- for (list_t *ldpy = TAG(ltag)->dpys; ldpy; ldpy = ldpy->next)
- for (list_t *lcol = DPY(ldpy)->cols; lcol; lcol = lcol->next)
- for (list_t *lrow = COL(lcol)->rows; lrow; lrow = lrow->next)
- sys_show(ROW(lrow)->win,
- ltag->data == wm_tag ? st_show : st_hide);
-
- /* Refrsh the display */
+ tag_foreach(wm_tag, dpy, col, row, win)
+ sys_show(win, st_show);
+ for (list_t *tag = wm ->tags; tag; tag = tag->next)
+ tag_foreach(TAG(tag), dpy, col, row, win)
+ if (tag->data != wm_tag)
+ sys_show(win, st_hide);
+
+ /* Refresh the display */
for (list_t *ldpy = wm_tag->dpys; ldpy; ldpy = ldpy->next)
wm_update_dpy(ldpy->data);
if (wm_focus)
// mod.win ? 'w' : '-');
/* Mouse movement */
- if (key_mouse0 <= key && key <= key_mouse7 && mod.up)
- return set_move(win,ptr,none), 1;
- else if (key == key_mouse1 && mod.MODKEY)
- return set_move(win,ptr,move), 1;
- else if (key == key_mouse3 && mod.MODKEY)
- return set_move(win,ptr,resize), 1;
+ if (key_mouse0 <= key && key <= key_mouse7) {
+ if (key == key_mouse1 && mod.MODKEY && !mod.up)
+ return set_move(win,ptr,move), 1;
+ if (key == key_mouse3 && mod.MODKEY && !mod.up)
+ return set_move(win,ptr,resize), 1;
+ if (move_mode != none && mod.up)
+ return set_move(win,ptr,none), 1;
+ if (key == key_mouse1 && !mod.up && win->h == STACK)
+ return wm_update(), 0;
+ return 0;
+ }
/* Only handle key-down */
if (mod.up)
/* Misc */
if (mod.MODKEY) {
+#ifdef DEBUG
if (key == key_f1) return sys_raise(win), 1;
if (key == key_f2) return set_focus(win), 1;
if (key == key_f3) return sys_show(win, st_show), 1;
if (key == key_f4) return sys_show(win, st_hide), 1;
+#endif
if (key == key_f5) return wm_update(), 1;
- if (key == key_f6) return print_txt(), 1;
+ if (key == key_f6) return print_txt(), 1;
}
if (key_mouse0 <= key && key <= key_mouse7)
sys_raise(win);
/* Tag switching */
if (mod.MODKEY && '0' <= key && key <= '9') {
int name = key - '0';
- if (mod.shift) {
+ if (mod.shift)
tag_set(win, name);
- } else {
- printf("tag_switch: %d\n", name);
- wm_tag = tag_find(name);
- }
+ else
+ tag_switch(name);
wm_update();
}
sys_watch(win, key_focus, MOD());
/* Add to screen */
- put_win(win, wm_dpy, wm_col);
+ put_win(win, wm_tag, wm_dpy, wm_col);
/* Arrange */
wm_update();
- sys_focus(wm_focus);
+ set_focus(wm_focus);
print_txt();
}
print_txt();
for (list_t *tag = wm->tags; tag; tag = tag->next)
cut_win(tag->data, win);
- if (wm_focus)
- sys_focus(wm_focus);
- else
- sys_focus(wm->root);
+ set_focus(wm_focus);
wm_update();
print_txt();
}
-
void wm_init(win_t *root)
{
printf("wm_init: %p\n", root);
+ /* Hack, fix screen order */
+ list_t *screens = sys_info(root);
+ list_t *left = screens;
+ list_t *right = screens->next;
+ if (left && right && WIN(left)->x > WIN(right)->x) {
+ void *tmp = left->data;
+ left->data = right->data;
+ right->data = tmp;
+ }
+
wm = new0(wm_t);
wm->root = root;
- wm->screens = sys_info(root);
+ wm->screens = screens;
wm->tag = tag_new(wm->screens, 1);
wm->tags = list_insert(NULL, wm->tag);
projects / wmpus / blobdiff