Pileus Git - wmpus/blob - wm-wmii.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 #include "util.h"
   5 #include "sys.h"
   6 #include "wm.h"
   7
   8 #define MODKEY ctrl
   9 #define MARGIN 10
  10
  11 /* Loca types */
  12 struct win_wm {
  13         list_t *col; // node in wm_cols
  14         list_t *row; // node in col->rows
  15 };
  16
  17 typedef enum {
  18         none, move, resize
  19 } drag_t;
  20
  21 typedef enum {
  22         stack, split, max, tab
  23 } group_t;
  24
  25 typedef struct {
  26         int     width;
  27         group_t group;
  28         win_t  *focus;
  29         list_t *rows;
  30 } col_t;
  31
  32 /* Mouse drag data */
  33 static drag_t move_mode;
  34 static win_t *move_win;
  35 static ptr_t  move_prev;
  36
  37 /* Window management data */
  38 static win_t  *wm_focus;
  39 static list_t *wm_cols;
  40 static win_t  *wm_root;
  41
  42 /* Helper functions */
  43 static void set_focus(win_t *win)
  44 {
  45         if (win->wm && win->wm->col)
  46                 ((col_t*)win->wm->col->data)->focus = win;
  47         wm_focus = win;
  48         sys_focus(win);
  49 }
  50
  51 static void set_mode(drag_t drag, win_t *win, ptr_t ptr)
  52 {
  53         printf("set_mode: %d - %p@%d,%d\n",
  54                         drag, win, ptr.rx, ptr.ry);
  55         move_mode = drag;
  56         if (drag == move || drag == resize) {
  57                 move_win  = win;
  58                 move_prev = ptr;
  59         }
  60 }
  61
  62 static void print_txt(list_t *cols)
  63 {
  64         for (list_t *cnode = cols; cnode; cnode = cnode->next) {
  65                 col_t *col = cnode->data;
  66                 printf("col:\t%p - %dpx @ %d\n", col, col->width, col->group);
  67                 for (list_t *wnode = col->rows; wnode; wnode = wnode->next) {
  68                         win_t *win = wnode->data;
  69                         printf("  win:\t%p - %4dpx  focus=%d%d\n", win, win->h,
  70                                         col->focus == win, wm_focus == win);
  71                 }
  72         }
  73 }
  74
  75 static void arrange(list_t *cols)
  76 {
  77         int  x=0,  y=0; // Current window top-left position
  78         int tx=0, ty=0; // Total x/y size
  79         int mx=0, my=0; // Maximum x/y size (screen size)
  80
  81
  82         /* Scale horizontally */
  83         mx = wm_root->w - (list_length(wm_cols)+1)*MARGIN;
  84         for (list_t *lx = cols; lx; lx = lx->next)
  85                 tx += ((col_t*)lx->data)->width;
  86         for (list_t *lx = cols; lx; lx = lx->next)
  87                 ((col_t*)lx->data)->width *= (float)mx / tx;
  88
  89         /* Scale each column vertically */
  90         for (list_t *lx = cols; lx; lx = lx->next) {
  91                 col_t *col = lx->data;
  92                 ty = 0;
  93                 for (list_t *ly = col->rows; ly; ly = ly->next)
  94                         ty += ((win_t*)ly->data)->h;
  95                 y = 0;
  96                 my = wm_root->h - (list_length(col->rows)+1)*MARGIN;
  97                 for (list_t *ly = col->rows; ly; ly = ly->next) {
  98                         win_t *win = ly->data;
  99                         sys_move(win, x+MARGIN, y+MARGIN,
 100                                 col->width,
 101                                 win->h * ((float)my / ty));
 102                         y += win->h + MARGIN;
 103                 }
 104                 x += col->width + MARGIN;
 105         }
 106 }
 107
 108 static void cut_window(win_t *win)
 109 {
 110         list_t *lrow = win->wm->row;
 111         list_t *lcol = win->wm->col;
 112         col_t  *col  = lcol->data;
 113
 114         col->focus = lrow->prev ? lrow->prev->data  :
 115                      lrow->next ? lrow->next->data  : NULL;
 116
 117         wm_focus   = col->focus ? col->focus        :
 118                      lcol->prev ? ((col_t*)lcol->prev->data)->focus :
 119                      lcol->next ? ((col_t*)lcol->next->data)->focus : NULL;
 120
 121         col->rows  = list_remove(col->rows, win->wm->row);
 122         if (col->rows == NULL)
 123                 wm_cols = list_remove(wm_cols, lcol);
 124 }
 125
 126 static void put_window(win_t *win, list_t *lcol)
 127 {
 128         col_t *col = lcol->data;
 129         col->rows    = list_insert(col->rows, win);
 130         win->wm->row = col->rows;
 131         win->wm->col = lcol;
 132         col->focus   = win;
 133         wm_focus     = win;
 134
 135         int nrows = list_length(col->rows);
 136         win->h = wm_root->h / MAX(nrows-1,1);
 137         if (nrows == 1) { // new column
 138                 int ncols = list_length(wm_cols);
 139                 col->width = wm_root->w / MAX(ncols-1,1);
 140         }
 141 }
 142
 143 static void shift_window(win_t *win, int col, int row)
 144 {
 145         printf("shift_window: %p - %+d,%+d\n", win, col, row);
 146         print_txt(wm_cols);
 147         printf("shift_window: >>>\n");
 148         if (row != 0) {
 149                 list_t *src = win->wm->row, *dst = NULL;
 150                 if (row < 0) dst = src->prev;
 151                 if (row > 0) dst = src->next;
 152                 if (src && dst) {
 153                         printf("swap: %p <-> %p\n", src->data, dst->data);
 154                         src->data = dst->data;
 155                         dst->data = win;
 156                         ((win_t*)src->data)->wm->row = src;
 157                         ((win_t*)dst->data)->wm->row = dst;
 158                         arrange(wm_cols);
 159                 }
 160         } else {
 161                 int onlyrow = !win->wm->row->prev && !win->wm->row->next;
 162                 list_t *src = win->wm->col, *dst = NULL;
 163                 if (col < 0) {
 164                         if (!src->prev && !onlyrow)
 165                                 wm_cols = list_insert(wm_cols, new0(col_t));
 166                         dst = src->prev;
 167                 }
 168                 if (col > 0) {
 169                         if (!src->next && !onlyrow)
 170                                 wm_cols = list_append(wm_cols, new0(col_t));
 171                         dst = src->next;
 172                 }
 173                 if (src && dst) {
 174                         cut_window(win);
 175                         put_window(win, dst);
 176                         arrange(wm_cols);
 177                 }
 178         }
 179         print_txt(wm_cols);
 180 }
 181
 182 static void shift_focus(win_t *win, int col, int row)
 183 {
 184         printf("shift_focus: %p - %+d,%+d\n", win, col, row);
 185         list_t *node  = NULL;
 186         if (row != 0) {
 187                 if (row < 0) node = win->wm->row->prev;
 188                 if (row > 0) node = win->wm->row->next;
 189         } else {
 190                 if (col < 0) node = win->wm->col->prev;
 191                 if (col > 0) node = win->wm->col->next;
 192                 if (node) {
 193                         col_t *col = node->data;
 194                         node = col->focus->wm->row;
 195                 }
 196         }
 197         if (node)
 198                 set_focus(node->data);
 199 }
 200
 201 /* Window management functions */
 202 int wm_handle_key(win_t *win, Key_t key, mod_t mod, ptr_t ptr)
 203 {
 204         if (!win || win == wm_root) return 0;
 205         //printf("wm_handle_key: %p - %x %x\n", win, key, mod);
 206
 207         /* Raise */
 208         if (key == key_f2)
 209                 return set_focus(win), 1;
 210         if (key == key_f4)
 211                 return sys_raise(win), 1;
 212         if (key == key_f1 && mod.MODKEY)
 213                 sys_raise(win);
 214         if (key_mouse0 <= key && key <= key_mouse7)
 215                 sys_raise(win);
 216
 217         /* Key commands */
 218         if (mod.MODKEY && mod.shift) {
 219                 switch (key) {
 220                 case 'h': return shift_window(win,-1, 0), 1;
 221                 case 'j': return shift_window(win, 0,+1), 1;
 222                 case 'k': return shift_window(win, 0,-1), 1;
 223                 case 'l': return shift_window(win,+1, 0), 1;
 224                 default: break;
 225                 }
 226         }
 227         else if (mod.MODKEY) {
 228                 switch (key) {
 229                 case 'h': return shift_focus(win,-1, 0), 1;
 230                 case 'j': return shift_focus(win, 0,+1), 1;
 231                 case 'k': return shift_focus(win, 0,-1), 1;
 232                 case 'l': return shift_focus(win,+1, 0), 1;
 233                 default: break;
 234                 }
 235         }
 236
 237         /* Mouse movement */
 238         if (key_mouse0 <= key && key <= key_mouse7 && mod.up)
 239                 return set_mode(none,win,ptr), 1;
 240         else if (key == key_mouse1 && mod.MODKEY)
 241                 return set_mode(move,win,ptr), 1;
 242         else if (key == key_mouse3 && mod.MODKEY)
 243                 return set_mode(resize,win,ptr), 1;
 244
 245         /* Focus change */
 246         if (key == key_enter)
 247                 set_focus(win);
 248
 249         return 0;
 250 }
 251
 252 int wm_handle_ptr(win_t *cwin, ptr_t ptr)
 253 {
 254         //printf("wm_handle_ptr: %p - %d,%d %d,%d (%d) -- \n",
 255         //              cwin, ptr.x, ptr.y, ptr.rx, ptr.ry, move_mode);
 256
 257         if (move_mode == none)
 258                 return 0;
 259
 260         /* Tiling */
 261         int dx = ptr.rx - move_prev.rx;
 262         int dy = ptr.ry - move_prev.ry;
 263         move_prev = ptr;
 264         if (move_mode == resize) {
 265                 list_t *row   = move_win->wm->row;
 266                 list_t *col   = move_win->wm->col;
 267                 list_t *lower = row->next;
 268                 list_t *right = col->next;
 269                 if (lower) {
 270                         ((win_t*)row->data)->h       += dy;
 271                         ((win_t*)lower->data)->h     -= dy;
 272                 }
 273                 if (right) {
 274                         ((col_t*)col->data)->width   += dx;
 275                         ((col_t*)right->data)->width -= dx;
 276                 }
 277                 arrange(wm_cols);
 278         }
 279
 280         /* Floating */
 281         //win_t *mwin = move_win;
 282         //int dx = ptr.rx - move_prev.rx;
 283         //int dy = ptr.ry - move_prev.ry;
 284         //move_prev = ptr;
 285         //if (move_mode == move)
 286         //      sys_move(mwin, mwin->x+dx, mwin->y+dy, mwin->w, mwin->h);
 287         //else if (move_mode == resize)
 288         //      sys_move(mwin, mwin->x, mwin->y, mwin->w+dx, mwin->h+dy);
 289
 290         return 0;
 291 }
 292
 293 void wm_insert(win_t *win)
 294 {
 295         printf("wm_insert: %p\n", win);
 296         print_txt(wm_cols);
 297
 298         /* Watch enter/leave */
 299         sys_watch(win, key_enter, MOD());
 300
 301         /* Add to screen */
 302         col_t *col = wm_cols->data;
 303         //col_t *col = wm_focus && wm_focus->wm ?
 304         //      wm_focus->wm->col->data : wm_cols->data;
 305         int nrows = list_length(col->rows);
 306         col->rows = list_insert(col->rows, win);
 307
 308         /* Setup window */
 309         win->wm = new0(win_wm_t);
 310         win->wm->col = wm_cols;
 311         win->wm->row = col->rows;
 312         if (nrows) win->h = wm_root->h / nrows;
 313
 314         /* Arrange */
 315         arrange(wm_cols);
 316         print_txt(wm_cols);
 317 }
 318
 319 void wm_remove(win_t *win)
 320 {
 321         printf("wm_remove: %p - (%p,%p)\n", win,
 322                         win->wm->col, win->wm->row);
 323         print_txt(wm_cols);
 324         cut_window(win);
 325         if (wm_focus)
 326                 sys_focus(wm_focus);
 327         arrange(wm_cols);
 328         print_txt(wm_cols);
 329 }
 330
 331 void wm_init(win_t *root)
 332 {
 333         printf("wm_init: %p\n", root);
 334         wm_root = root;
 335         sys_watch(root, key_f1,     MOD(.MODKEY=1));
 336         sys_watch(root, key_mouse1, MOD(.MODKEY=1));
 337         sys_watch(root, key_mouse3, MOD(.MODKEY=1));
 338         sys_watch(root, key_enter,  MOD());
 339         Key_t keys[] = {'h', 'j', 'k', 'l'};
 340         for (int i = 0; i < countof(keys); i++) {
 341                 sys_watch(root, keys[i], MOD(.MODKEY=1));
 342                 sys_watch(root, keys[i], MOD(.MODKEY=1,.shift=1));
 343         }
 344         col_t *col = new0(col_t);
 345         col->group = stack;
 346         col->width = root->w;
 347         wm_cols = list_insert(wm_cols, col);
 348 }