git.sur5r.net Git - i3/i3/blob - src/layout.c

   1 /*
   2  * vim:ts=8:expandtab
   3  *
   4  * i3 - an improved dynamic tiling window manager
   5  *
   6  * © 2009 Michael Stapelberg and contributors
   7  *
   8  * See file LICENSE for license information.
   9  *
  10  * layout.c: Functions handling layout/drawing of window decorations
  11  *
  12  */
  13 #include <stdio.h>
  14 #include <string.h>
  15 #include <stdlib.h>
  16 #include <xcb/xcb.h>
  17 #include <assert.h>
  18 #include <math.h>
  19
  20 #include "config.h"
  21 #include "i3.h"
  22 #include "xcb.h"
  23 #include "table.h"
  24 #include "util.h"
  25 #include "xinerama.h"
  26 #include "layout.h"
  27
  28 /*
  29  * Updates *destination with new_value and returns true if it was changed or false
  30  * if it was the same
  31  *
  32  */
  33 static bool update_if_necessary(uint32_t *destination, const uint32_t new_value) {
  34         int old_value = *destination;
  35
  36         return ((*destination = new_value) != old_value);
  37 }
  38
  39 /*
  40  * Gets the unoccupied space (= space which is available for windows which were resized by the user)
  41  * for the given row. This is necessary to render both, customly resized windows and never touched
  42  * windows correctly, meaning that the aspect ratio will be maintained when opening new windows.
  43  *
  44  */
  45 int get_unoccupied_x(Workspace *workspace, int row) {
  46         int unoccupied = workspace->rect.width;
  47         float default_factor = ((float)workspace->rect.width / workspace->cols) / workspace->rect.width;
  48
  49         LOG("get_unoccupied_x(), starting with %d, default_factor = %f\n", unoccupied, default_factor);
  50
  51         for (int cols = 0; cols < workspace->cols;) {
  52                 Container *con = workspace->table[cols][row];
  53                 LOG("width_factor[%d][%d] = %f, colspan = %d\n", cols, row, con->width_factor, con->colspan);
  54                 if (con->width_factor == 0)
  55                         unoccupied -= workspace->rect.width * default_factor * con->colspan;
  56                 cols += con->colspan;
  57         }
  58
  59         assert(unoccupied != 0);
  60
  61         LOG("unoccupied space: %d\n", unoccupied);
  62         return unoccupied;
  63 }
  64
  65 /* See get_unoccupied_x() */
  66 int get_unoccupied_y(Workspace *workspace, int col) {
  67         int unoccupied = workspace->rect.height;
  68         float default_factor = ((float)workspace->rect.height / workspace->rows) / workspace->rect.height;
  69
  70         LOG("get_unoccupied_y(), starting with %d, default_factor = %f\n", unoccupied, default_factor);
  71
  72         for (int rows = 0; rows < workspace->rows;) {
  73                 Container *con = workspace->table[col][rows];
  74                 LOG("height_factor[%d][%d] = %f, rowspan %d\n", col, rows, con->height_factor, con->rowspan);
  75                 if (con->height_factor == 0)
  76                         unoccupied -= workspace->rect.height * default_factor * con->rowspan;
  77                 rows += con->rowspan;
  78         }
  79
  80         assert(unoccupied != 0);
  81
  82         LOG("unoccupied space: %d\n", unoccupied);
  83         return unoccupied;
  84 }
  85
  86 /*
  87  * Redecorates the given client correctly by checking if it’s in a stacking container and
  88  * re-rendering the stack window or just calling decorate_window if it’s not in a stacking
  89  * container.
  90  *
  91  */
  92 void redecorate_window(xcb_connection_t *conn, Client *client) {
  93         if (client->container->mode == MODE_STACK) {
  94                 render_container(conn, client->container);
  95                 /* We clear the frame to generate exposure events, because the color used
  96                    in drawing may be different */
  97                 xcb_clear_area(conn, true, client->frame, 0, 0, client->rect.width, client->rect.height);
  98         } else decorate_window(conn, client, client->frame, client->titlegc, 0);
  99         xcb_flush(conn);
 100 }
 101
 102 /*
 103  * (Re-)draws window decorations for a given Client onto the given drawable/graphic context.
 104  * When in stacking mode, the window decorations are drawn onto an own window.
 105  *
 106  */
 107 void decorate_window(xcb_connection_t *conn, Client *client, xcb_drawable_t drawable, xcb_gcontext_t gc, int offset) {
 108         i3Font *font = load_font(conn, config.font);
 109         int decoration_height = font->height + 2 + 2;
 110         uint32_t background_color,
 111                  text_color,
 112                  border_color;
 113
 114         /* Clients without a container (docks) won’t get decorated */
 115         if (client->container == NULL)
 116                 return;
 117
 118         if (client->container->currently_focused == client) {
 119                 /* Distinguish if the window is currently focused… */
 120                 if (CUR_CELL->currently_focused == client)
 121                         background_color = get_colorpixel(conn, "#285577");
 122                 /* …or if it is the focused window in a not focused container */
 123                 else background_color = get_colorpixel(conn, "#555555");
 124
 125                 text_color = get_colorpixel(conn, "#ffffff");
 126                 border_color = get_colorpixel(conn, "#4c7899");
 127         } else {
 128                 background_color = get_colorpixel(conn, "#222222");
 129                 text_color = get_colorpixel(conn, "#888888");
 130                 border_color = get_colorpixel(conn, "#333333");
 131         }
 132
 133         /* Our plan is the following:
 134            - Draw a rect around the whole client in background_color
 135            - Draw two lines in a lighter color
 136            - Draw the window’s title
 137          */
 138
 139         /* Draw a rectangle in background color around the window */
 140         xcb_change_gc_single(conn, gc, XCB_GC_FOREGROUND, background_color);
 141
 142         /* In stacking mode, we only render the rect for this specific decoration */
 143         if (client->container->mode == MODE_STACK) {
 144                 xcb_rectangle_t rect = {0, offset, client->container->width, offset + decoration_height };
 145                 xcb_poly_fill_rectangle(conn, drawable, gc, 1, &rect);
 146         } else {
 147                 /* We need to use the container’s width because it is the more recent value - when
 148                    in stacking mode, clients get reconfigured only on demand (the not active client
 149                    is not reconfigured), so the client’s rect.width would be wrong */
 150                 xcb_rectangle_t rect = {0, 0, client->container->width, client->rect.height};
 151                 xcb_poly_fill_rectangle(conn, drawable, gc, 1, &rect);
 152
 153                 /* Draw the inner background to have a black frame around clients (such as mplayer)
 154                    which cannot be resized exactly in our frames and therefore are centered */
 155                 xcb_change_gc_single(conn, client->titlegc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
 156                 xcb_rectangle_t crect = {2, decoration_height,
 157                                          client->rect.width - (2 + 2), client->rect.height - 2 - decoration_height};
 158                 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
 159         }
 160
 161         /* Draw the lines */
 162         xcb_draw_line(conn, drawable, gc, border_color, 2, offset, client->rect.width, offset);
 163         xcb_draw_line(conn, drawable, gc, border_color, 2, offset + font->height + 3,
 164                       2 + client->rect.width, offset + font->height + 3);
 165
 166         /* If the client has a title, we draw it */
 167         if (client->name != NULL) {
 168                 /* Draw the font */
 169                 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT;
 170                 uint32_t values[] = { text_color, background_color, font->id };
 171                 xcb_change_gc(conn, gc, mask, values);
 172
 173                 /* name_len == -1 means this is a legacy application which does not specify _NET_WM_NAME,
 174                    and we don’t handle the old window name (COMPOUND_TEXT) but only _NET_WM_NAME, which
 175                    is UTF-8 */
 176                 if (client->name_len == -1)
 177                         xcb_image_text_8(conn, strlen(client->name), drawable, gc, 3 /* X */,
 178                                          offset + font->height /* Y = baseline of font */, client->name);
 179                 else
 180                         xcb_image_text_16(conn, client->name_len, drawable, gc, 3 /* X */,
 181                                           offset + font->height /* Y = baseline of font */, (xcb_char2b_t*)client->name);
 182         }
 183 }
 184
 185 /*
 186  * Pushes the client’s x and y coordinates to X11
 187  *
 188  */
 189 static void reposition_client(xcb_connection_t *conn, Client *client) {
 190         LOG("frame 0x%08x needs to be pushed to %dx%d\n", client->frame, client->rect.x, client->rect.y);
 191         /* Note: We can use a pointer to client->x like an array of uint32_ts
 192            because it is followed by client->y by definition */
 193         xcb_configure_window(conn, client->frame, XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y, &(client->rect.x));
 194 }
 195
 196 /*
 197  * Pushes the client’s width/height to X11 and resizes the child window
 198  *
 199  */
 200 static void resize_client(xcb_connection_t *conn, Client *client) {
 201         i3Font *font = load_font(conn, config.font);
 202
 203         LOG("resizing client 0x%08x to %d x %d\n", client->frame, client->rect.width, client->rect.height);
 204         xcb_configure_window(conn, client->frame,
 205                         XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT,
 206                         &(client->rect.width));
 207
 208         /* Adjust the position of the child inside its frame.
 209          * The coordinates of the child are relative to its frame, we
 210          * add a border of 2 pixel to each value */
 211         uint32_t mask = XCB_CONFIG_WINDOW_X |
 212                         XCB_CONFIG_WINDOW_Y |
 213                         XCB_CONFIG_WINDOW_WIDTH |
 214                         XCB_CONFIG_WINDOW_HEIGHT;
 215         Rect *rect = &(client->child_rect);
 216         switch ((client->container != NULL ? client->container->mode : MODE_DEFAULT)) {
 217                 case MODE_STACK:
 218                         rect->x = 2;
 219                         rect->y = 0;
 220                         rect->width = client->rect.width - (2 + 2);
 221                         rect->height = client->rect.height - 2;
 222                         break;
 223                 default:
 224                         if (client->titlebar_position == TITLEBAR_OFF) {
 225                                 rect->x = 0;
 226                                 rect->y = 0;
 227                                 rect->width = client->rect.width;
 228                                 rect->height = client->rect.height;
 229                         } else {
 230                                 rect->x = 2;
 231                                 rect->y = font->height + 2 + 2;
 232                                 rect->width = client->rect.width - (2 + 2);
 233                                 rect->height = client->rect.height - ((font->height + 2 + 2) + 2);
 234                         }
 235                         break;
 236         }
 237
 238         /* Obey the ratio, if any */
 239         if (client->proportional_height != 0 &&
 240             client->proportional_width != 0) {
 241                 LOG("proportional height = %d, width = %d\n", client->proportional_height, client->proportional_width);
 242                 double new_height = rect->height + 1;
 243                 int new_width = rect->width;
 244
 245                 while (new_height > rect->height) {
 246                         new_height = ((double)client->proportional_height / client->proportional_width) * new_width;
 247
 248                         if (new_height > rect->height)
 249                                 new_width--;
 250                 }
 251                 /* Center the window */
 252                 rect->y += ceil(rect->height / 2) - floor(new_height / 2);
 253                 rect->x += ceil(rect->width / 2) - floor(new_width / 2);
 254
 255                 rect->height = new_height;
 256                 rect->width = new_width;
 257                 LOG("new_height = %f, new_width = %d\n", new_height, new_width);
 258         }
 259
 260         LOG("child will be at %dx%d with size %dx%d\n", rect->x, rect->y, rect->width, rect->height);
 261
 262         xcb_configure_window(conn, client->child, mask, &(rect->x));
 263
 264         /* After configuring a child window we need to fake a configure_notify_event according
 265            to ICCCM 4.2.3. This seems rather broken, especially since X sends exactly the same
 266            configure_notify_event automatically according to xtrace. Anyone knows details? */
 267         fake_configure_notify(conn, *rect, client->child);
 268 }
 269
 270 /*
 271  * Renders the given container. Is called by render_layout() or individually (for example
 272  * when focus changes in a stacking container)
 273  *
 274  */
 275 void render_container(xcb_connection_t *conn, Container *container) {
 276         Client *client;
 277         int num_clients = 0, current_client = 0;
 278
 279         if (container->currently_focused == NULL)
 280                 return;
 281
 282         CIRCLEQ_FOREACH(client, &(container->clients), clients)
 283                 num_clients++;
 284
 285         if (container->mode == MODE_DEFAULT) {
 286                 LOG("got %d clients in this default container.\n", num_clients);
 287                 CIRCLEQ_FOREACH(client, &(container->clients), clients) {
 288                         /* If the client is in fullscreen mode, it does not get reconfigured */
 289                         if (container->workspace->fullscreen_client == client) {
 290                                 current_client++;
 291                                 continue;
 292                         }
 293
 294                         /* Check if we changed client->x or client->y by updating it.
 295                          * Note the bitwise OR instead of logical OR to force evaluation of both statements */
 296                         if (client->force_reconfigure |
 297                             update_if_necessary(&(client->rect.x), container->x) |
 298                             update_if_necessary(&(client->rect.y), container->y +
 299                                         (container->height / num_clients) * current_client))
 300                                 reposition_client(conn, client);
 301
 302                         /* TODO: vertical default layout */
 303                         if (client->force_reconfigure |
 304                             update_if_necessary(&(client->rect.width), container->width) |
 305                             update_if_necessary(&(client->rect.height), container->height / num_clients))
 306                                 resize_client(conn, client);
 307
 308                         client->force_reconfigure = false;
 309
 310                         current_client++;
 311                 }
 312         } else {
 313                 i3Font *font = load_font(conn, config.font);
 314                 int decoration_height = (font->height + 2 + 2);
 315                 struct Stack_Window *stack_win = &(container->stack_win);
 316
 317                 /* Check if we need to remap our stack title window, it gets unmapped when the container
 318                    is empty in src/handlers.c:unmap_notify() */
 319                 if (stack_win->rect.height == 0)
 320                         xcb_map_window(conn, stack_win->window);
 321
 322                 /* Check if we need to reconfigure our stack title window */
 323                 if (update_if_necessary(&(stack_win->rect.x), container->x) |
 324                     update_if_necessary(&(stack_win->rect.y), container->y) |
 325                     update_if_necessary(&(stack_win->rect.width), container->width) |
 326                     update_if_necessary(&(stack_win->rect.height), decoration_height * num_clients)) {
 327
 328                         /* Configuration can happen in two slightly different ways:
 329
 330                            If there is no client in fullscreen mode, 5 parameters are passed
 331                            (x, y, width, height, stack mode is set to above which means top-most position).
 332
 333                            If there is a fullscreen client, the fourth parameter is set to to the
 334                            fullscreen window as sibling and the stack mode is set to below, which means
 335                            that the stack_window will be placed just below the sibling, that is, under
 336                            the fullscreen window.
 337                          */
 338                         uint32_t values[] = { stack_win->rect.x, stack_win->rect.y,
 339                                               stack_win->rect.width, stack_win->rect.height,
 340                                               XCB_STACK_MODE_ABOVE, XCB_STACK_MODE_BELOW };
 341                         uint32_t mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y |
 342                                         XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT |
 343                                         XCB_CONFIG_WINDOW_STACK_MODE;
 344
 345                         /* If there is no fullscreen client, we raise the stack window */
 346                         if (container->workspace->fullscreen_client != NULL) {
 347                                 mask |= XCB_CONFIG_WINDOW_SIBLING;
 348                                 values[4] = container->workspace->fullscreen_client->frame;
 349                         }
 350
 351                         xcb_configure_window(conn, stack_win->window, mask, values);
 352                 }
 353
 354                 /* Reconfigure the currently focused client, if necessary. It is the only visible one */
 355                 client = container->currently_focused;
 356
 357                 if (container->workspace->fullscreen_client == NULL) {
 358                         uint32_t values[] = { XCB_STACK_MODE_ABOVE };
 359                         xcb_configure_window(conn, client->frame, XCB_CONFIG_WINDOW_STACK_MODE, values);
 360                 }
 361
 362                 /* Render the decorations of all clients */
 363                 CIRCLEQ_FOREACH(client, &(container->clients), clients) {
 364                         /* If the client is in fullscreen mode, it does not get reconfigured */
 365                         if (container->workspace->fullscreen_client == client) {
 366                                 current_client++;
 367                                 continue;
 368                         }
 369
 370                         /* Check if we changed client->x or client->y by updating it.
 371                          * Note the bitwise OR instead of logical OR to force evaluation of both statements */
 372                         if (client->force_reconfigure |
 373                             update_if_necessary(&(client->rect.x), container->x) |
 374                             update_if_necessary(&(client->rect.y), container->y + (decoration_height * num_clients)))
 375                                 reposition_client(conn, client);
 376
 377                         if (client->force_reconfigure |
 378                             update_if_necessary(&(client->rect.width), container->width) |
 379                             update_if_necessary(&(client->rect.height), container->height - (decoration_height * num_clients)))
 380                                 resize_client(conn, client);
 381
 382                         client->force_reconfigure = false;
 383
 384                         decorate_window(conn, client, stack_win->window, stack_win->gc,
 385                                         current_client++ * decoration_height);
 386                 }
 387         }
 388 }
 389
 390 static void render_bars(xcb_connection_t *conn, Workspace *r_ws, int width, int *height) {
 391         Client *client;
 392         SLIST_FOREACH(client, &(r_ws->dock_clients), dock_clients) {
 393                 LOG("client is at %d, should be at %d\n", client->rect.y, *height);
 394                 if (client->force_reconfigure |
 395                     update_if_necessary(&(client->rect.x), 0) |
 396                     update_if_necessary(&(client->rect.y), *height))
 397                         reposition_client(conn, client);
 398
 399                 if (client->force_reconfigure |
 400                     update_if_necessary(&(client->rect.width), width) |
 401                     update_if_necessary(&(client->rect.height), client->desired_height))
 402                         resize_client(conn, client);
 403
 404                 client->force_reconfigure = false;
 405                 *height += client->desired_height;
 406         }
 407 }
 408
 409 static void render_internal_bar(xcb_connection_t *conn, Workspace *r_ws, int width, int height) {
 410         LOG("Rendering internal bar\n");
 411         i3Font *font = load_font(conn, config.font);
 412         i3Screen *screen = r_ws->screen;
 413         enum { SET_NORMAL = 0, SET_FOCUSED = 1 };
 414         uint32_t background_color[2],
 415                  text_color[2],
 416                  border_color[2],
 417                  black;
 418         char label[3];
 419
 420         black = get_colorpixel(conn, "#000000");
 421
 422         background_color[SET_NORMAL] = get_colorpixel(conn, "#222222");
 423         text_color[SET_NORMAL] = get_colorpixel(conn, "#888888");
 424         border_color[SET_NORMAL] = get_colorpixel(conn, "#333333");
 425
 426         background_color[SET_FOCUSED] = get_colorpixel(conn, "#285577");
 427         text_color[SET_FOCUSED] = get_colorpixel(conn, "#ffffff");
 428         border_color[SET_FOCUSED] = get_colorpixel(conn, "#4c7899");
 429
 430         /* Fill the whole bar in black */
 431         xcb_change_gc_single(conn, screen->bargc, XCB_GC_FOREGROUND, black);
 432         xcb_rectangle_t rect = {0, 0, width, height};
 433         xcb_poly_fill_rectangle(conn, screen->bar, screen->bargc, 1, &rect);
 434
 435         /* Set font */
 436         xcb_change_gc_single(conn, screen->bargc, XCB_GC_FONT, font->id);
 437
 438         int drawn = 0;
 439         for (int c = 0; c < 10; c++) {
 440                 if (workspaces[c].screen == screen) {
 441                         int set = (screen->current_workspace == c ? SET_FOCUSED : SET_NORMAL);
 442
 443                         xcb_draw_rect(conn, screen->bar, screen->bargc, border_color[set],
 444                                       drawn * height, 1, height - 2, height - 2);
 445                         xcb_draw_rect(conn, screen->bar, screen->bargc, background_color[set],
 446                                       drawn * height + 1, 2, height - 4, height - 4);
 447
 448                         snprintf(label, sizeof(label), "%d", c+1);
 449                         xcb_change_gc_single(conn, screen->bargc, XCB_GC_FOREGROUND, text_color[set]);
 450                         xcb_change_gc_single(conn, screen->bargc, XCB_GC_BACKGROUND, background_color[set]);
 451                         xcb_image_text_8(conn, strlen(label), screen->bar, screen->bargc, drawn * height + 5 /* X */,
 452                                                         font->height + 1 /* Y = baseline of font */, label);
 453                         drawn++;
 454                 }
 455         }
 456
 457         LOG("done rendering internal\n");
 458 }
 459
 460 /*
 461  * Modifies the event mask of all clients on the given workspace to either ignore or to handle
 462  * enter notifies. It is handy to ignore notifies because they will be sent when a window is mapped
 463  * under the cursor, thus when the user didn’t enter the window actively at all.
 464  *
 465  */
 466 void ignore_enter_notify_forall(xcb_connection_t *conn, Workspace *workspace, bool ignore_enter_notify) {
 467         Client *client;
 468         uint32_t values[1];
 469
 470         LOG("Ignore enter_notify = %d\n", ignore_enter_notify);
 471
 472         FOR_TABLE(workspace)
 473                 CIRCLEQ_FOREACH(client, &(workspace->table[cols][rows]->clients), clients) {
 474                         /* Change event mask for the decorations */
 475                         values[0] = FRAME_EVENT_MASK;
 476                         if (ignore_enter_notify)
 477                                 values[0] &= ~(XCB_EVENT_MASK_ENTER_WINDOW);
 478                         xcb_change_window_attributes(conn, client->frame, XCB_CW_EVENT_MASK, values);
 479
 480                         /* Change event mask for the child itself */
 481                         values[0] = CHILD_EVENT_MASK;
 482                         if (ignore_enter_notify)
 483                                 values[0] &= ~(XCB_EVENT_MASK_ENTER_WINDOW);
 484                         xcb_change_window_attributes(conn, client->child, XCB_CW_EVENT_MASK, values);
 485                 }
 486 }
 487
 488 void render_layout(xcb_connection_t *conn) {
 489         i3Screen *screen;
 490         i3Font *font = load_font(conn, config.font);
 491
 492         TAILQ_FOREACH(screen, virtual_screens, screens) {
 493                 /* r_ws (rendering workspace) is just a shortcut to the Workspace being currently rendered */
 494                 Workspace *r_ws = &(workspaces[screen->current_workspace]);
 495
 496                 LOG("Rendering screen %d\n", screen->num);
 497
 498                 int width = r_ws->rect.width;
 499                 int height = r_ws->rect.height;
 500
 501                 /* Reserve space for dock clients */
 502                 Client *client;
 503                 SLIST_FOREACH(client, &(r_ws->dock_clients), dock_clients)
 504                         height -= client->desired_height;
 505
 506                 /* Space for the internal bar */
 507                 height -= (font->height + 6);
 508
 509                 LOG("got %d rows and %d cols\n", r_ws->rows, r_ws->cols);
 510
 511                 int xoffset[r_ws->rows];
 512                 int yoffset[r_ws->cols];
 513                 /* Initialize offsets */
 514                 for (int cols = 0; cols < r_ws->cols; cols++)
 515                         yoffset[cols] = r_ws->rect.y;
 516                 for (int rows = 0; rows < r_ws->rows; rows++)
 517                         xoffset[rows] = r_ws->rect.x;
 518
 519                 dump_table(conn, r_ws);
 520
 521                 ignore_enter_notify_forall(conn, r_ws, true);
 522
 523                 /* Go through the whole table and render what’s necessary */
 524                 FOR_TABLE(r_ws) {
 525                         Container *container = r_ws->table[cols][rows];
 526                         int single_width, single_height;
 527                         LOG("\n");
 528                         LOG("========\n");
 529                         LOG("container has %d colspan, %d rowspan\n",
 530                                         container->colspan, container->rowspan);
 531                         LOG("container at %d, %d\n", xoffset[rows], yoffset[cols]);
 532                         /* Update position of the container */
 533                         container->row = rows;
 534                         container->col = cols;
 535                         container->x = xoffset[rows];
 536                         container->y = yoffset[cols];
 537
 538                         if (container->width_factor == 0)
 539                                 container->width = (width / r_ws->cols);
 540                         else container->width = get_unoccupied_x(r_ws, rows) * container->width_factor;
 541                         single_width = container->width;
 542                         container->width *= container->colspan;
 543
 544                         if (container->height_factor == 0)
 545                                 container->height = (height / r_ws->rows);
 546                         else container->height = get_unoccupied_y(r_ws, cols) * container->height_factor;
 547                         single_height = container->height;
 548                         container->height *= container->rowspan;
 549
 550                         /* Render the container if it is not empty */
 551                         render_container(conn, container);
 552
 553                         xoffset[rows] += single_width;
 554                         yoffset[cols] += single_height;
 555                         LOG("==========\n");
 556                 }
 557
 558                 ignore_enter_notify_forall(conn, r_ws, false);
 559
 560                 render_bars(conn, r_ws, width, &height);
 561                 render_internal_bar(conn, r_ws, width, font->height + 6);
 562         }
 563
 564         xcb_flush(conn);
 565 }