src/placement.c

   1 /* placement.c - window and icon placement on screen
   2  *
   3  *  Window Maker window manager
   4  *
   5  *  Copyright (c) 1997, 1998 Alfredo K. Kojima
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20  *  USA.
  21  */
  22
  23 #include "wconfig.h"
  24
  25 #include <X11/Xlib.h>
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29
  30 #include "WindowMaker.h"
  31 #include "wcore.h"
  32 #include "framewin.h"
  33 #include "window.h"
  34 #include "icon.h"
  35 #include "actions.h"
  36 #include "funcs.h"
  37 #include "application.h"
  38 #include "appicon.h"
  39 #include "dock.h"
  40
  41 #include "list.h"
  42
  43 extern WPreferences wPreferences;
  44
  45
  46 #define X_ORIGIN(scr) WMAX((scr)->totalUsableArea.x1,\
  47                                 wPreferences.window_place_origin.x)
  48
  49 #define Y_ORIGIN(scr) WMAX((scr)->totalUsableArea.y1,\
  50                                 wPreferences.window_place_origin.y)
  51
  52
  53 /*
  54  * interactive window placement is in moveres.c
  55  */
  56
  57 extern void
  58 InteractivePlaceWindow(WWindow *wwin, int *x_ret, int *y_ret,
  59                        unsigned width, unsigned height);
  60
  61
  62 /*
  63  * Returns True if it is an icon and is in this workspace.
  64  */
  65 static Bool
  66 iconPosition(WCoreWindow *wcore, int sx1, int sy1, int sx2, int sy2,
  67              int workspace, int *retX, int *retY)
  68 {
  69     void *parent;
  70     int ok = 0;
  71
  72     parent = wcore->descriptor.parent;
  73
  74     /* if it is an application icon */
  75     if (wcore->descriptor.parent_type == WCLASS_APPICON) {
  76         *retX = ((WAppIcon*)parent)->x_pos;
  77         *retY = ((WAppIcon*)parent)->y_pos;
  78
  79         ok = 1;
  80     } else if (wcore->descriptor.parent_type == WCLASS_MINIWINDOW &&
  81                (((WIcon*)parent)->owner->frame->workspace==workspace
  82                 || IS_OMNIPRESENT(((WIcon*)parent)->owner)
  83                 || wPreferences.sticky_icons)
  84                && !((WIcon*)parent)->owner->flags.hidden) {
  85
  86         *retX = ((WIcon*)parent)->owner->icon_x;
  87         *retY = ((WIcon*)parent)->owner->icon_y;
  88
  89         ok = 1;
  90     }
  91
  92     /*
  93      * Check if it is inside the screen.
  94      */
  95     if (ok) {
  96         if (*retX < sx1-wPreferences.icon_size)
  97             ok = 0;
  98         else if (*retX > sx2)
  99             ok = 0;
 100
 101         if (*retY < sy1-wPreferences.icon_size)
 102             ok = 0;
 103         else if (*retY > sy2)
 104             ok = 0;
 105     }
 106
 107     return ok;
 108 }
 109
 110
 111
 112
 113 void
 114 PlaceIcon(WScreen *scr, int *x_ret, int *y_ret)
 115 {
 116     int pf;                            /* primary axis */
 117     int sf;                            /* secondary axis */
 118     int fullW;
 119     int fullH;
 120     char *map;
 121     int pi, si;
 122     WCoreWindow *obj;
 123     int sx1, sx2, sy1, sy2;            /* screen boundary */
 124     int sw, sh;
 125     int xo, yo;
 126     int xs, ys;
 127     int x, y;
 128     int isize = wPreferences.icon_size;
 129     int done = 0;
 130     int level;
 131
 132     /*
 133      * Find out screen boundaries.
 134      */
 135     sx1 = 0;
 136     sy1 = 0;
 137     sx2 = scr->scr_width;
 138     sy2 = scr->scr_height;
 139     if (scr->dock) {
 140         if (scr->dock->on_right_side)
 141             sx2 -= isize + DOCK_EXTRA_SPACE;
 142         else
 143             sx1 += isize + DOCK_EXTRA_SPACE;
 144     }
 145
 146     sw = isize * (scr->scr_width/isize);
 147     sh = isize * (scr->scr_height/isize);
 148     fullW = (sx2-sx1)/isize;
 149     fullH = (sy2-sy1)/isize;
 150
 151     /* icon yard boundaries */
 152     if (wPreferences.icon_yard & IY_VERT) {
 153         pf = fullH;
 154         sf = fullW;
 155     } else {
 156         pf = fullW;
 157         sf = fullH;
 158     }
 159     if (wPreferences.icon_yard & IY_RIGHT) {
 160         xo = sx2 - isize;
 161         xs = -1;
 162     } else {
 163         xo = sx1;
 164         xs = 1;
 165     }
 166     if (wPreferences.icon_yard & IY_TOP) {
 167         yo = sy1;
 168         ys = 1;
 169     } else {
 170         yo = sy2 - isize;
 171         ys = -1;
 172     }
 173
 174     /*
 175      * Create a map with the occupied slots. 1 means the slot is used
 176      * or at least partially used.
 177      * The slot usage can be optimized by only marking fully used slots
 178      * or slots that have most of it covered.
 179      * Space usage is worse than the fvwm algorithm (used in the old version)
 180      * but complexity is much better (faster) than it.
 181      */
 182     map = wmalloc((sw+2) * (sh+2));
 183     memset(map, 0, (sw+2) * (sh+2));
 184
 185 #define INDEX(x,y)      (((y)+1)*(sw+2) + (x) + 1)
 186
 187     for (level = WMNormalLevel; level >= WMDesktopLevel; level--) {
 188         obj = scr->stacking_list[level];
 189
 190         while (obj) {
 191             int x, y;
 192
 193             if (iconPosition(obj, sx1, sy1, sx2, sy2, scr->current_workspace,
 194                              &x, &y)) {
 195                 int xdi, ydi;          /* rounded down */
 196                 int xui, yui;          /* rounded up */
 197
 198                 xdi = x/isize;
 199                 ydi = y/isize;
 200                 xui = (x+isize/2)/isize;
 201                 yui = (y+isize/2)/isize;
 202                 map[INDEX(xdi,ydi)] = 1;
 203                 map[INDEX(xdi,yui)] = 1;
 204                 map[INDEX(xui,ydi)] = 1;
 205                 map[INDEX(xui,yui)] = 1;
 206             }
 207             obj = obj->stacking->under;
 208         }
 209     }
 210     /*
 211      * Default position
 212      */
 213     *x_ret = 0;
 214     *y_ret = 0;
 215
 216     /*
 217      * Look for an empty slot
 218      */
 219     for (si=0; si<sf; si++) {
 220         for (pi=0; pi<pf; pi++) {
 221             if (wPreferences.icon_yard & IY_VERT) {
 222                 x = xo + xs*(si*isize);
 223                 y = yo + ys*(pi*isize);
 224             } else {
 225                 x = xo + xs*(pi*isize);
 226                 y = yo + ys*(si*isize);
 227             }
 228             if (!map[INDEX(x/isize, y/isize)]) {
 229                 *x_ret = x;
 230                 *y_ret = y;
 231                 done = 1;
 232                 break;
 233             }
 234         }
 235         if (done)
 236             break;
 237     }
 238
 239     free(map);
 240 }
 241
 242
 243 static Bool
 244 smartPlaceWindow(WWindow *wwin, int *x_ret, int *y_ret,
 245                  unsigned int width, unsigned int height, int tryCount)
 246 {
 247     WScreen *scr = wwin->screen_ptr;
 248     int test_x = 0, test_y = Y_ORIGIN(scr);
 249     int loc_ok = False, tw,tx,ty,th;
 250     int swidth, sx;
 251     WWindow *test_window;
 252     int extra_height;
 253     WArea usableArea = scr->totalUsableArea;
 254
 255     if (wwin->frame)
 256         extra_height = wwin->frame->top_width + wwin->frame->bottom_width + 2;
 257     else
 258         extra_height = 24; /* random value */
 259
 260     swidth = usableArea.x2-usableArea.x1;
 261     sx = X_ORIGIN(scr);
 262
 263     /* this was based on fvwm2's smart placement */
 264
 265     height += extra_height;
 266
 267     while (((test_y + height) < (scr->scr_height)) && (!loc_ok)) {
 268
 269         test_x = sx;
 270
 271         while (((test_x + width) < swidth) && (!loc_ok)) {
 272
 273             loc_ok = True;
 274             test_window = scr->focused_window;
 275
 276             while ((test_window != NULL) && (loc_ok == True)) {
 277
 278                 if (test_window->frame->core->stacking->window_level
 279                     < WMNormalLevel && tryCount > 0) {
 280                     test_window = test_window->next;
 281                     continue;
 282                 }
 283                 tw = test_window->client.width;
 284                 if (test_window->flags.shaded)
 285                     th = test_window->frame->top_width;
 286                 else
 287                     th = test_window->client.height + extra_height;
 288                 tx = test_window->frame_x;
 289                 ty = test_window->frame_y;
 290
 291                 if ((tx < (test_x + width)) && ((tx + tw) > test_x) &&
 292                     (ty < (test_y + height)) && ((ty + th) > test_y) &&
 293                     (test_window->flags.mapped ||
 294                      (test_window->flags.shaded &&
 295                       !(test_window->flags.miniaturized ||
 296                         test_window->flags.hidden)))) {
 297
 298                     loc_ok = False;
 299                 }
 300                 test_window = test_window->next;
 301             }
 302
 303             test_window = scr->focused_window;
 304
 305             while ((test_window != NULL) && (loc_ok == True))  {
 306
 307                 if (test_window->frame->core->stacking->window_level
 308                     < WMNormalLevel && tryCount > 0) {
 309                     test_window = test_window->prev;
 310                     continue;
 311                 }
 312                 tw = test_window->client.width;
 313                 if (test_window->flags.shaded)
 314                     th = test_window->frame->top_width;
 315                 else
 316                     th = test_window->client.height + extra_height;
 317                 tx = test_window->frame_x;
 318                 ty = test_window->frame_y;
 319
 320                 if ((tx < (test_x + width)) && ((tx + tw) > test_x) &&
 321                     (ty < (test_y + height)) && ((ty + th) > test_y) &&
 322                     (test_window->flags.mapped ||
 323                      (test_window->flags.shaded &&
 324                       !(test_window->flags.miniaturized ||
 325                         test_window->flags.hidden)))) {
 326
 327                     loc_ok = False;
 328                 }
 329                 test_window = test_window->prev;
 330             }
 331             if (loc_ok == True) {
 332                 *x_ret = test_x;
 333                 *y_ret = test_y;
 334                 break;
 335             }
 336             test_x += PLACETEST_HSTEP;
 337         }
 338         test_y += PLACETEST_VSTEP;
 339     }
 340
 341     return loc_ok;
 342 }
 343
 344
 345 static void
 346 cascadeWindow(WScreen *scr, WWindow *wwin, int *x_ret, int *y_ret,
 347               unsigned int width, unsigned int height, int h)
 348 {
 349     unsigned int extra_height;
 350     WArea usableArea = scr->totalUsableArea;
 351
 352     if (wwin->frame)
 353         extra_height = wwin->frame->top_width + wwin->frame->bottom_width;
 354     else
 355         extra_height = 24; /* random value */
 356
 357     *x_ret = h * scr->cascade_index + X_ORIGIN(scr);
 358     *y_ret = h * scr->cascade_index + Y_ORIGIN(scr);
 359     height += extra_height;
 360
 361     if (width + *x_ret > usableArea.x2 || height + *y_ret > usableArea.y2) {
 362         scr->cascade_index = 0;
 363         *x_ret = X_ORIGIN(scr);
 364         *y_ret = Y_ORIGIN(scr);
 365     }
 366 }
 367
 368
 369 void
 370 PlaceWindow(WWindow *wwin, int *x_ret, int *y_ret,
 371             unsigned width, unsigned height)
 372 {
 373     WScreen *scr = wwin->screen_ptr;
 374     int h = scr->title_font->height+TITLEBAR_EXTRA_HEIGHT;
 375
 376     switch (wPreferences.window_placement) {
 377      case WPM_MANUAL:
 378         InteractivePlaceWindow(wwin, x_ret, y_ret, width, height);
 379         break;
 380
 381      case WPM_SMART:
 382         if (smartPlaceWindow(wwin, x_ret, y_ret, width, height, 0)) {
 383             break;
 384         } else if (smartPlaceWindow(wwin, x_ret, y_ret, width, height, 1)) {
 385             break;
 386         }
 387         /* there isn't a break here, because if we fail, it should fall
 388            through to cascade placement, as people who want tiling want
 389            automagicness aren't going to want to place their window */
 390
 391      case WPM_CASCADE:
 392         if (wPreferences.window_placement == WPM_SMART)
 393             scr->cascade_index++;
 394
 395         cascadeWindow(scr, wwin, x_ret, y_ret, width, height, h);
 396
 397         if (wPreferences.window_placement == WPM_CASCADE)
 398             scr->cascade_index++;
 399         break;
 400
 401      case WPM_RANDOM:
 402         {
 403             int w, h, extra_height;
 404             WArea usableArea = scr->totalUsableArea;
 405
 406             if (wwin->frame)
 407                 extra_height = wwin->frame->top_width + wwin->frame->bottom_width + 2;
 408             else
 409                 extra_height = 24; /* random value */
 410
 411             w = ((usableArea.x2-X_ORIGIN(scr)) - width);
 412             h = ((usableArea.y2-Y_ORIGIN(scr)) - height - extra_height);
 413             if (w<1) w = 1;
 414             if (h<1) h = 1;
 415             *x_ret = X_ORIGIN(scr) + rand()%w;
 416             *y_ret = Y_ORIGIN(scr) + rand()%h;
 417         }
 418         break;
 419
 420 #ifdef DEBUG
 421      default:
 422         puts("Invalid window placement!!!");
 423         *x_ret = 0;
 424         *y_ret = 0;
 425 #endif
 426     }
 427
 428     if (*x_ret + width > scr->scr_width)
 429         *x_ret = scr->scr_width - width;
 430     if (*x_ret < 0)
 431         *x_ret = 0;
 432
 433     if (*y_ret + height > scr->scr_height)
 434         *y_ret = scr->scr_height - height;
 435     if (*y_ret < 0)
 436         *y_ret = 0;
 437 }
 438
 439