4 * i3 - an improved dynamic tiling window manager
6 * © 2009 Michael Stapelberg and contributors
8 * See file LICENSE for license information.
10 * layout.c: Functions handling layout/drawing of window decorations
30 #include "workspace.h"
33 * Updates *destination with new_value and returns true if it was changed or false
37 static bool update_if_necessary(uint32_t *destination, const uint32_t new_value) {
38 uint32_t old_value = *destination;
40 return ((*destination = new_value) != old_value);
44 * Gets the unoccupied space (= space which is available for windows which were resized by the user)
45 * for the given row. This is necessary to render both, customly resized windows and never touched
46 * windows correctly, meaning that the aspect ratio will be maintained when opening new windows.
49 int get_unoccupied_x(Workspace *workspace) {
50 int unoccupied = workspace->rect.width;
51 float default_factor = ((float)workspace->rect.width / workspace->cols) / workspace->rect.width;
53 LOG("get_unoccupied_x(), starting with %d, default_factor = %f\n", unoccupied, default_factor);
55 for (int cols = 0; cols < workspace->cols; cols++) {
56 LOG("width_factor[%d] = %f\n", cols, workspace->width_factor[cols]);
58 if (workspace->width_factor[cols] == 0)
59 unoccupied -= workspace->rect.width * default_factor;
62 LOG("unoccupied space: %d\n", unoccupied);
66 /* See get_unoccupied_x() */
67 int get_unoccupied_y(Workspace *workspace) {
68 int height = workspace->rect.height;
69 i3Font *font = load_font(global_conn, config.font);
71 /* Reserve space for dock clients */
73 SLIST_FOREACH(client, &(workspace->screen->dock_clients), dock_clients)
74 height -= client->desired_height;
76 /* Space for the internal bar */
77 height -= (font->height + 6);
79 int unoccupied = height;
80 float default_factor = ((float)height / workspace->rows) / height;
82 LOG("get_unoccupied_y(), starting with %d, default_factor = %f\n", unoccupied, default_factor);
84 for (int rows = 0; rows < workspace->rows; rows++) {
85 LOG("height_factor[%d] = %f\n", rows, workspace->height_factor[rows]);
86 if (workspace->height_factor[rows] == 0)
87 unoccupied -= height * default_factor;
90 LOG("unoccupied space: %d\n", unoccupied);
95 * Redecorates the given client correctly by checking if it’s in a stacking container and
96 * re-rendering the stack window or just calling decorate_window if it’s not in a stacking
100 void redecorate_window(xcb_connection_t *conn, Client *client) {
101 if (client->container != NULL &&
102 (client->container->mode == MODE_STACK ||
103 client->container->mode == MODE_TABBED)) {
104 render_container(conn, client->container);
105 /* We clear the frame to generate exposure events, because the color used
106 in drawing may be different */
107 xcb_clear_area(conn, true, client->frame, 0, 0, client->rect.width, client->rect.height);
108 } else decorate_window(conn, client, client->frame, client->titlegc, 0, 0);
113 * (Re-)draws window decorations for a given Client onto the given drawable/graphic context.
114 * When in stacking mode, the window decorations are drawn onto an own window.
117 void decorate_window(xcb_connection_t *conn, Client *client, xcb_drawable_t drawable,
118 xcb_gcontext_t gc, int offset_x, int offset_y) {
119 i3Font *font = load_font(conn, config.font);
120 int decoration_height = font->height + 2 + 2;
121 struct Colortriple *color;
122 Client *last_focused;
124 /* Clients without a container (docks) won’t get decorated */
128 last_focused = SLIST_FIRST(&(client->workspace->focus_stack));
129 /* Is the window urgent? */
131 color = &(config.client.urgent);
133 if (client_is_floating(client)) {
134 if (last_focused == client)
135 color = &(config.client.focused);
136 else color = &(config.client.unfocused);
138 if (client->container->currently_focused == client) {
139 /* Distinguish if the window is currently focused… */
140 if (last_focused == client && c_ws == client->workspace)
141 color = &(config.client.focused);
142 /* …or if it is the focused window in a not focused container */
143 else color = &(config.client.focused_inactive);
144 } else color = &(config.client.unfocused);
148 /* Our plan is the following:
149 - Draw a rect around the whole client in color->background
150 - Draw two lines in a lighter color
151 - Draw the window’s title
154 /* Draw a rectangle in background color around the window */
155 if (client->borderless && (client->container == NULL ||
156 (client->container->mode != MODE_STACK &&
157 client->container->mode != MODE_TABBED)))
158 xcb_change_gc_single(conn, gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
159 else xcb_change_gc_single(conn, gc, XCB_GC_FOREGROUND, color->background);
161 /* In stacking mode, we only render the rect for this specific decoration */
162 if (client->container != NULL && (client->container->mode == MODE_STACK || client->container->mode == MODE_TABBED)) {
163 /* We need to use the container’s width because it is the more recent value - when
164 in stacking mode, clients get reconfigured only on demand (the not active client
165 is not reconfigured), so the client’s rect.width would be wrong */
166 xcb_rectangle_t rect = {offset_x, offset_y,
167 offset_x + client->container->width,
168 offset_y + decoration_height };
169 xcb_poly_fill_rectangle(conn, drawable, gc, 1, &rect);
171 xcb_rectangle_t rect = {0, 0, client->rect.width, client->rect.height};
172 xcb_poly_fill_rectangle(conn, drawable, gc, 1, &rect);
174 /* Draw the inner background to have a black frame around clients (such as mplayer)
175 which cannot be resized exactly in our frames and therefore are centered */
176 xcb_change_gc_single(conn, client->titlegc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
177 if (client->titlebar_position == TITLEBAR_OFF) {
178 xcb_rectangle_t crect = {1, 1, client->rect.width - (1 + 1), client->rect.height - (1 + 1)};
179 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
181 xcb_rectangle_t crect = {2, decoration_height,
182 client->rect.width - (2 + 2), client->rect.height - 2 - decoration_height};
183 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
187 if (client->titlebar_position != TITLEBAR_OFF) {
189 xcb_draw_line(conn, drawable, gc, color->border, offset_x, offset_y, offset_x + client->rect.width, offset_y);
190 if ((client->container == NULL ||
191 (client->container->mode != MODE_STACK &&
192 client->container->mode != MODE_TABBED) ||
193 CIRCLEQ_NEXT_OR_NULL(&(client->container->clients), client, clients) == NULL))
194 xcb_draw_line(conn, drawable, gc, color->border,
195 offset_x + 2, /* x */
196 offset_y + font->height + 3, /* y */
197 offset_x + client->rect.width - 3, /* to_x */
198 offset_y + font->height + 3 /* to_y */);
201 /* If the client has a title, we draw it */
202 if (client->name != NULL && client->titlebar_position != TITLEBAR_OFF) {
204 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT;
205 uint32_t values[] = { color->text, color->background, font->id };
206 xcb_change_gc(conn, gc, mask, values);
208 /* name_len == -1 means this is a legacy application which does not specify _NET_WM_NAME,
209 and we don’t handle the old window name (COMPOUND_TEXT) but only _NET_WM_NAME, which
211 if (client->name_len == -1)
212 xcb_image_text_8(conn, strlen(client->name), drawable, gc, offset_x + 3 /* X */,
213 offset_y + font->height /* Y = baseline of font */, client->name);
215 xcb_image_text_16(conn, client->name_len, drawable, gc, offset_x + 3 /* X */,
216 offset_y + font->height /* Y = baseline of font */, (xcb_char2b_t*)client->name);
221 * Pushes the client’s x and y coordinates to X11
224 void reposition_client(xcb_connection_t *conn, Client *client) {
227 LOG("frame 0x%08x needs to be pushed to %dx%d\n", client->frame, client->rect.x, client->rect.y);
228 /* Note: We can use a pointer to client->x like an array of uint32_ts
229 because it is followed by client->y by definition */
230 xcb_configure_window(conn, client->frame, XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y, &(client->rect.x));
232 if (!client_is_floating(client))
235 /* If the client is floating, we need to check if we moved it to a different workspace */
236 if (client->workspace->screen == (screen = get_screen_containing(client->rect.x, client->rect.y)))
239 if (screen == NULL) {
240 LOG("Boundary checking disabled, no screen found for (%d, %d)\n", client->rect.x, client->rect.y);
244 LOG("Client is on workspace %p with screen %p\n", client->workspace, client->workspace->screen);
245 LOG("but screen at %d, %d is %p\n", client->rect.x, client->rect.y, screen);
246 floating_assign_to_workspace(client, screen->current_workspace);
250 * Pushes the client’s width/height to X11 and resizes the child window. This
251 * function also updates the client’s position, so if you work on tiling clients
252 * only, you can use this function instead of separate calls to reposition_client
253 * and resize_client to reduce flickering.
256 void resize_client(xcb_connection_t *conn, Client *client) {
257 i3Font *font = load_font(conn, config.font);
259 LOG("frame 0x%08x needs to be pushed to %dx%d\n", client->frame, client->rect.x, client->rect.y);
260 LOG("resizing client 0x%08x to %d x %d\n", client->frame, client->rect.width, client->rect.height);
261 xcb_configure_window(conn, client->frame,
262 XCB_CONFIG_WINDOW_X |
263 XCB_CONFIG_WINDOW_Y |
264 XCB_CONFIG_WINDOW_WIDTH |
265 XCB_CONFIG_WINDOW_HEIGHT,
268 /* Adjust the position of the child inside its frame.
269 * The coordinates of the child are relative to its frame, we
270 * add a border of 2 pixel to each value */
271 uint32_t mask = XCB_CONFIG_WINDOW_X |
272 XCB_CONFIG_WINDOW_Y |
273 XCB_CONFIG_WINDOW_WIDTH |
274 XCB_CONFIG_WINDOW_HEIGHT;
275 Rect *rect = &(client->child_rect);
276 switch ((client->container != NULL ? client->container->mode : MODE_DEFAULT)) {
281 rect->width = client->rect.width - (2 + 2);
282 rect->height = client->rect.height - 2;
285 if (client->titlebar_position == TITLEBAR_OFF && client->borderless) {
288 rect->width = client->rect.width;
289 rect->height = client->rect.height;
290 } else if (client->titlebar_position == TITLEBAR_OFF && !client->borderless) {
293 rect->width = client->rect.width - 1 - 1;
294 rect->height = client->rect.height - 1 - 1;
297 rect->y = font->height + 2 + 2;
298 rect->width = client->rect.width - (2 + 2);
299 rect->height = client->rect.height - ((font->height + 2 + 2) + 2);
304 rect->width -= (2 * client->border_width);
305 rect->height -= (2 * client->border_width);
307 /* Obey the ratio, if any */
308 if (client->proportional_height != 0 &&
309 client->proportional_width != 0) {
310 LOG("proportional height = %d, width = %d\n", client->proportional_height, client->proportional_width);
311 double new_height = rect->height + 1;
312 int new_width = rect->width;
314 while (new_height > rect->height) {
315 new_height = ((double)client->proportional_height / client->proportional_width) * new_width;
317 if (new_height > rect->height)
320 /* Center the window */
321 rect->y += ceil(rect->height / 2) - floor(new_height / 2);
322 rect->x += ceil(rect->width / 2) - floor(new_width / 2);
324 rect->height = new_height;
325 rect->width = new_width;
326 LOG("new_height = %f, new_width = %d\n", new_height, new_width);
329 if (client->height_increment > 1) {
330 int old_height = rect->height;
331 rect->height -= (rect->height - client->base_height) % client->height_increment;
332 LOG("Lost %d pixel due to client's height_increment (%d px)\n",
333 old_height - rect->height, client->height_increment);
336 if (client->width_increment > 1) {
337 int old_width = rect->width;
338 rect->width -= (rect->width - client->base_width) % client->width_increment;
339 LOG("Lost %d pixel due to client's width_increment (%d px)\n",
340 old_width - rect->width, client->width_increment);
343 LOG("child will be at %dx%d with size %dx%d\n", rect->x, rect->y, rect->width, rect->height);
345 xcb_configure_window(conn, client->child, mask, &(rect->x));
347 /* After configuring a child window we need to fake a configure_notify_event (see ICCCM 4.2.3).
348 * This is necessary to inform the client of its position relative to the root window,
349 * not relative to its frame (as done in the configure_notify_event by the x server). */
350 fake_absolute_configure_notify(conn, client);
352 /* Force redrawing after resizing the window because any now lost
353 * pixels could contain old garbage. */
354 xcb_expose_event_t generated;
355 generated.window = client->frame;
357 handle_expose_event(NULL, conn, &generated);
361 * Renders the given container. Is called by render_layout() or individually (for example
362 * when focus changes in a stacking container)
365 void render_container(xcb_connection_t *conn, Container *container) {
367 int num_clients = 0, current_client = 0;
369 CIRCLEQ_FOREACH(client, &(container->clients), clients)
372 if (container->mode == MODE_DEFAULT) {
373 CIRCLEQ_FOREACH(client, &(container->clients), clients) {
374 /* If the client is in fullscreen mode, it does not get reconfigured */
375 if (container->workspace->fullscreen_client == client) {
380 /* Check if we changed client->x or client->y by updating it.
381 * Note the bitwise OR instead of logical OR to force evaluation of both statements */
382 if (client->force_reconfigure |
383 update_if_necessary(&(client->rect.x), container->x) |
384 update_if_necessary(&(client->rect.y), container->y +
385 (container->height / num_clients) * current_client) |
386 update_if_necessary(&(client->rect.width), container->width) |
387 update_if_necessary(&(client->rect.height), container->height / num_clients))
388 resize_client(conn, client);
390 /* TODO: vertical default layout */
392 client->force_reconfigure = false;
397 i3Font *font = load_font(conn, config.font);
398 int decoration_height = (font->height + 2 + 2);
399 struct Stack_Window *stack_win = &(container->stack_win);
400 /* The size for each tab (width), necessary as a separate variable
401 * because num_clients gets fixed to 1 in tabbed mode. */
402 int size_each = (num_clients == 0 ? container->width : container->width / num_clients);
403 int stack_lines = num_clients;
405 /* Check if we need to remap our stack title window, it gets unmapped when the container
406 is empty in src/handlers.c:unmap_notify() */
407 if (stack_win->rect.height == 0 && num_clients > 0) {
408 LOG("remapping stack win\n");
409 xcb_map_window(conn, stack_win->window);
410 } else LOG("not remapping stackwin, height = %d, num_clients = %d\n",
411 stack_win->rect.height, num_clients);
413 if (container->mode == MODE_TABBED) {
414 /* By setting num_clients to 1 we force that the stack window will be only one line
415 * high. The rest of the code is useful in both cases. */
416 LOG("tabbed mode, setting num_clients = 1\n");
421 if (container->stack_limit == STACK_LIMIT_COLS) {
422 stack_lines = ceil((float)num_clients / container->stack_limit_value);
423 } else if (container->stack_limit == STACK_LIMIT_ROWS) {
424 stack_lines = min(num_clients, container->stack_limit_value);
427 /* Check if we need to reconfigure our stack title window */
428 if (update_if_necessary(&(stack_win->rect.x), container->x) |
429 update_if_necessary(&(stack_win->rect.y), container->y) |
430 update_if_necessary(&(stack_win->rect.width), container->width) |
431 update_if_necessary(&(stack_win->rect.height), decoration_height * stack_lines)) {
433 /* Configuration can happen in two slightly different ways:
435 If there is no client in fullscreen mode, 5 parameters are passed
436 (x, y, width, height, stack mode is set to above which means top-most position).
438 If there is a fullscreen client, the fourth parameter is set to to the
439 fullscreen window as sibling and the stack mode is set to below, which means
440 that the stack_window will be placed just below the sibling, that is, under
441 the fullscreen window.
443 uint32_t values[] = { stack_win->rect.x, stack_win->rect.y,
444 stack_win->rect.width, stack_win->rect.height,
445 XCB_STACK_MODE_ABOVE, XCB_STACK_MODE_BELOW };
446 uint32_t mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y |
447 XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT |
448 XCB_CONFIG_WINDOW_STACK_MODE;
450 /* Raise the stack window, but keep it below the first floating client
451 * and below the fullscreen client (if any) */
452 Client *first_floating = TAILQ_FIRST(&(container->workspace->floating_clients));
453 if (first_floating != TAILQ_END(&(container->workspace->floating_clients))) {
454 mask |= XCB_CONFIG_WINDOW_SIBLING;
455 values[4] = first_floating->frame;
456 } else if (container->workspace->fullscreen_client != NULL) {
457 mask |= XCB_CONFIG_WINDOW_SIBLING;
458 values[4] = container->workspace->fullscreen_client->frame;
461 xcb_configure_window(conn, stack_win->window, mask, values);
464 /* Prepare the pixmap for usage */
465 cached_pixmap_prepare(conn, &(stack_win->pixmap));
467 int current_row = 0, current_col = 0;
470 if (container->stack_limit == STACK_LIMIT_COLS) {
471 /* wrap stores the number of rows after which we will
472 * wrap to a new column. */
473 wrap = ceil((float)num_clients / container->stack_limit_value);
474 } else if (container->stack_limit == STACK_LIMIT_ROWS) {
475 /* When limiting rows, the wrap variable serves a
476 * slightly different purpose: it holds the number of
477 * pixels which each client will get. This is constant
478 * during the following loop, so it saves us some
479 * divisions and ceil()ing. */
480 wrap = (stack_win->rect.width / ceil((float)num_clients / container->stack_limit_value));
483 /* Render the decorations of all clients */
484 CIRCLEQ_FOREACH(client, &(container->clients), clients) {
485 /* If the client is in fullscreen mode, it does not get reconfigured */
486 if (container->workspace->fullscreen_client == client) {
491 /* Check if we changed client->x or client->y by updating it.
492 * Note the bitwise OR instead of logical OR to force evaluation of all statements */
493 if (client->force_reconfigure |
494 update_if_necessary(&(client->rect.x), container->x) |
495 update_if_necessary(&(client->rect.y), container->y + (decoration_height * stack_lines)) |
496 update_if_necessary(&(client->rect.width), container->width) |
497 update_if_necessary(&(client->rect.height), container->height - (decoration_height * stack_lines)))
498 resize_client(conn, client);
500 client->force_reconfigure = false;
504 if (container->mode == MODE_STACK) {
505 if (container->stack_limit == STACK_LIMIT_COLS) {
506 offset_x = current_col * (stack_win->rect.width / container->stack_limit_value);
507 offset_y = current_row * decoration_height;
509 if ((current_row % wrap) == 0) {
513 } else if (container->stack_limit == STACK_LIMIT_ROWS) {
514 offset_x = current_col * wrap;
515 offset_y = current_row * decoration_height;
517 if ((current_row % container->stack_limit_value) == 0) {
522 offset_y = current_client * decoration_height;
525 } else if (container->mode == MODE_TABBED)
526 offset_x = current_client++ * size_each;
527 decorate_window(conn, client, stack_win->pixmap.id, stack_win->pixmap.gc,
531 /* Check if we need to fill one column because of an uneven
532 * amount of windows */
533 if (container->mode == MODE_STACK) {
534 if (container->stack_limit == STACK_LIMIT_COLS && (current_col % 2) != 0) {
535 xcb_change_gc_single(conn, stack_win->pixmap.gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
537 int offset_x = current_col * (stack_win->rect.width / container->stack_limit_value);
538 int offset_y = current_row * decoration_height;
539 xcb_rectangle_t rect = {offset_x, offset_y,
540 offset_x + container->width,
541 offset_y + decoration_height };
542 xcb_poly_fill_rectangle(conn, stack_win->pixmap.id, stack_win->pixmap.gc, 1, &rect);
543 } else if (container->stack_limit == STACK_LIMIT_ROWS && (current_row % 2) != 0) {
544 xcb_change_gc_single(conn, stack_win->pixmap.gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
546 int offset_x = current_col * wrap;
547 int offset_y = current_row * decoration_height;
548 xcb_rectangle_t rect = {offset_x, offset_y,
549 offset_x + container->width,
550 offset_y + decoration_height };
551 xcb_poly_fill_rectangle(conn, stack_win->pixmap.id, stack_win->pixmap.gc, 1, &rect);
555 xcb_copy_area(conn, stack_win->pixmap.id, stack_win->window, stack_win->pixmap.gc,
556 0, 0, 0, 0, stack_win->rect.width, stack_win->rect.height);
560 static void render_bars(xcb_connection_t *conn, Workspace *r_ws, int width, int *height) {
562 SLIST_FOREACH(client, &(r_ws->screen->dock_clients), dock_clients) {
563 LOG("client is at %d, should be at %d\n", client->rect.y, *height);
564 if (client->force_reconfigure |
565 update_if_necessary(&(client->rect.x), r_ws->rect.x) |
566 update_if_necessary(&(client->rect.y), *height))
567 reposition_client(conn, client);
569 if (client->force_reconfigure |
570 update_if_necessary(&(client->rect.width), width) |
571 update_if_necessary(&(client->rect.height), client->desired_height))
572 resize_client(conn, client);
574 client->force_reconfigure = false;
575 LOG("desired_height = %d\n", client->desired_height);
576 *height += client->desired_height;
580 static void render_internal_bar(xcb_connection_t *conn, Workspace *r_ws, int width, int height) {
581 i3Font *font = load_font(conn, config.font);
582 i3Screen *screen = r_ws->screen;
583 enum { SET_NORMAL = 0, SET_FOCUSED = 1 };
585 /* Fill the whole bar in black */
586 xcb_change_gc_single(conn, screen->bargc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
587 xcb_rectangle_t rect = {0, 0, width, height};
588 xcb_poly_fill_rectangle(conn, screen->bar, screen->bargc, 1, &rect);
591 xcb_change_gc_single(conn, screen->bargc, XCB_GC_FONT, font->id);
595 TAILQ_FOREACH(ws, workspaces, workspaces) {
596 if (ws->screen != screen)
599 struct Colortriple *color;
601 if (screen->current_workspace == ws)
602 color = &(config.bar.focused);
604 color = &(config.bar.urgent);
605 else color = &(config.bar.unfocused);
607 /* Draw the outer rect */
608 xcb_draw_rect(conn, screen->bar, screen->bargc, color->border,
611 ws->text_width + 5 + 5, /* width = text width + 5 px left + 5px right */
612 height - 2 /* height = max. height - 1 px upper and 1 px bottom border */);
614 /* Draw the background of this rect */
615 xcb_draw_rect(conn, screen->bar, screen->bargc, color->background,
618 ws->text_width + 4 + 4,
621 xcb_change_gc_single(conn, screen->bargc, XCB_GC_FOREGROUND, color->text);
622 xcb_change_gc_single(conn, screen->bargc, XCB_GC_BACKGROUND, color->background);
623 xcb_image_text_16(conn, ws->name_len, screen->bar, screen->bargc, drawn + 5 /* X */,
624 font->height + 1 /* Y = baseline of font */,
625 (xcb_char2b_t*)ws->name);
626 drawn += ws->text_width + 12;
631 * Modifies the event mask of all clients on the given workspace to either ignore or to handle
632 * enter notifies. It is handy to ignore notifies because they will be sent when a window is mapped
633 * under the cursor, thus when the user didn’t enter the window actively at all.
636 void ignore_enter_notify_forall(xcb_connection_t *conn, Workspace *workspace, bool ignore_enter_notify) {
640 FOR_TABLE(workspace) {
641 if (workspace->table[cols][rows] == NULL)
644 CIRCLEQ_FOREACH(client, &(workspace->table[cols][rows]->clients), clients) {
645 /* Change event mask for the decorations */
646 values[0] = FRAME_EVENT_MASK;
647 if (ignore_enter_notify)
648 values[0] &= ~(XCB_EVENT_MASK_ENTER_WINDOW);
649 xcb_change_window_attributes(conn, client->frame, XCB_CW_EVENT_MASK, values);
651 /* Change event mask for the child itself */
652 values[0] = CHILD_EVENT_MASK;
653 if (ignore_enter_notify)
654 values[0] &= ~(XCB_EVENT_MASK_ENTER_WINDOW);
655 xcb_change_window_attributes(conn, client->child, XCB_CW_EVENT_MASK, values);
661 * Renders the given workspace on the given screen
664 void render_workspace(xcb_connection_t *conn, i3Screen *screen, Workspace *r_ws) {
665 i3Font *font = load_font(conn, config.font);
666 int width = r_ws->rect.width;
667 int height = r_ws->rect.height;
669 /* Reserve space for dock clients */
671 SLIST_FOREACH(client, &(screen->dock_clients), dock_clients)
672 height -= client->desired_height;
674 /* Space for the internal bar */
675 height -= (font->height + 6);
677 int xoffset[r_ws->rows];
678 int yoffset[r_ws->cols];
679 /* Initialize offsets */
680 for (int cols = 0; cols < r_ws->cols; cols++)
681 yoffset[cols] = r_ws->rect.y;
682 for (int rows = 0; rows < r_ws->rows; rows++)
683 xoffset[rows] = r_ws->rect.x;
685 ignore_enter_notify_forall(conn, r_ws, true);
687 /* Go through the whole table and render what’s necessary */
689 Container *container = r_ws->table[cols][rows];
690 if (container == NULL)
692 int single_width = -1, single_height = -1;
693 /* Update position of the container */
694 container->row = rows;
695 container->col = cols;
696 container->x = xoffset[rows];
697 container->y = yoffset[cols];
698 container->width = 0;
700 for (int c = 0; c < container->colspan; c++) {
701 if (r_ws->width_factor[cols+c] == 0)
702 container->width += (width / r_ws->cols);
703 else container->width += get_unoccupied_x(r_ws) * r_ws->width_factor[cols+c];
705 if (single_width == -1)
706 single_width = container->width;
709 LOG("height is %d\n", height);
711 container->height = 0;
713 for (int c = 0; c < container->rowspan; c++) {
714 if (r_ws->height_factor[rows+c] == 0)
715 container->height += (height / r_ws->rows);
716 else container->height += get_unoccupied_y(r_ws) * r_ws->height_factor[rows+c];
718 if (single_height == -1)
719 single_height = container->height;
722 /* Render the container if it is not empty */
723 render_container(conn, container);
725 xoffset[rows] += single_width;
726 yoffset[cols] += single_height;
729 ignore_enter_notify_forall(conn, r_ws, false);
731 render_bars(conn, r_ws, width, &height);
732 render_internal_bar(conn, r_ws, width, font->height + 6);
736 * Renders the whole layout, that is: Go through each screen, each workspace, each container
737 * and render each client. This also renders the bars.
739 * If you don’t need to render *everything*, you should call render_container on the container
740 * you want to refresh.
743 void render_layout(xcb_connection_t *conn) {
746 if (virtual_screens == NULL)
749 TAILQ_FOREACH(screen, virtual_screens, screens)
750 if (screen->current_workspace != NULL)
751 render_workspace(conn, screen, screen->current_workspace);