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"
32 #include "container.h"
35 * Updates *destination with new_value and returns true if it was changed or false
39 static bool update_if_necessary(uint32_t *destination, const uint32_t new_value) {
40 uint32_t old_value = *destination;
42 return ((*destination = new_value) != old_value);
46 * Gets the unoccupied space (= space which is available for windows which were resized by the user)
47 * for the given row. This is necessary to render both, customly resized windows and never touched
48 * windows correctly, meaning that the aspect ratio will be maintained when opening new windows.
51 int get_unoccupied_x(Workspace *workspace) {
52 double unoccupied = workspace->rect.width;
53 double default_factor = ((float)workspace->rect.width / workspace->cols) / workspace->rect.width;
55 DLOG("get_unoccupied_x(), starting with %f, default_factor = %f\n", unoccupied, default_factor);
57 for (int cols = 0; cols < workspace->cols; cols++) {
58 DLOG("width_factor[%d] = %f, unoccupied = %f\n", cols, workspace->width_factor[cols], unoccupied);
60 if (workspace->width_factor[cols] == 0)
61 unoccupied -= workspace->rect.width * default_factor;
64 DLOG("unoccupied space: %f\n", unoccupied);
68 /* See get_unoccupied_x() */
69 int get_unoccupied_y(Workspace *workspace) {
70 int height = workspace_height(workspace);
71 double unoccupied = height;
72 double default_factor = ((float)height / workspace->rows) / height;
74 DLOG("get_unoccupied_y(), starting with %f, default_factor = %f\n", unoccupied, default_factor);
76 for (int rows = 0; rows < workspace->rows; rows++) {
77 DLOG("height_factor[%d] = %f, unoccupied = %f\n", rows, workspace->height_factor[rows], unoccupied);
78 if (workspace->height_factor[rows] == 0)
79 unoccupied -= height * default_factor;
82 DLOG("unoccupied space: %f\n", unoccupied);
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
92 void redecorate_window(xcb_connection_t *conn, Client *client) {
93 if (client->container != NULL &&
94 (client->container->mode == MODE_STACK ||
95 client->container->mode == MODE_TABBED)) {
96 render_container(conn, client->container);
97 /* We clear the frame to generate exposure events, because the color used
98 in drawing may be different */
99 xcb_clear_area(conn, true, client->frame, 0, 0, client->rect.width, client->rect.height);
100 } else decorate_window(conn, client, client->frame, client->titlegc, 0, 0);
105 * (Re-)draws window decorations for a given Client onto the given drawable/graphic context.
106 * When in stacking mode, the window decorations are drawn onto an own window.
109 void decorate_window(xcb_connection_t *conn, Client *client, xcb_drawable_t drawable,
110 xcb_gcontext_t gc, int offset_x, int offset_y) {
111 i3Font *font = load_font(conn, config.font);
112 int decoration_height = font->height + 2 + 2;
113 struct Colortriple *color;
114 Client *last_focused;
116 /* Clients without a container (docks) won’t get decorated */
120 last_focused = SLIST_FIRST(&(client->workspace->focus_stack));
121 /* Is the window urgent? */
123 color = &(config.client.urgent);
125 if (client_is_floating(client)) {
126 if (last_focused == client)
127 color = &(config.client.focused);
128 else color = &(config.client.unfocused);
130 if (client->container->currently_focused == client) {
131 /* Distinguish if the window is currently focused… */
132 if (last_focused == client && c_ws == client->workspace)
133 color = &(config.client.focused);
134 /* …or if it is the focused window in a not focused container */
135 else color = &(config.client.focused_inactive);
136 } else color = &(config.client.unfocused);
140 /* Our plan is the following:
141 - Draw a rect around the whole client in color->background
142 - Draw two lines in a lighter color
143 - Draw the window’s title
145 int mode = container_mode(client->container, true);
147 /* Draw a rectangle in background color around the window */
148 if (client->borderless && mode == MODE_DEFAULT)
149 xcb_change_gc_single(conn, gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
150 else xcb_change_gc_single(conn, gc, XCB_GC_FOREGROUND, color->background);
152 /* In stacking mode, we only render the rect for this specific decoration */
153 if (mode == MODE_STACK || mode == MODE_TABBED) {
154 /* We need to use the container’s width because it is the more recent value - when
155 in stacking mode, clients get reconfigured only on demand (the not active client
156 is not reconfigured), so the client’s rect.width would be wrong */
157 xcb_rectangle_t rect = {offset_x, offset_y,
158 offset_x + client->container->width,
159 offset_y + decoration_height };
160 xcb_poly_fill_rectangle(conn, drawable, gc, 1, &rect);
162 xcb_rectangle_t rect = {0, 0, client->rect.width, client->rect.height};
163 xcb_poly_fill_rectangle(conn, drawable, gc, 1, &rect);
165 /* Draw the inner background to have a black frame around clients (such as mplayer)
166 which cannot be resized exactly in our frames and therefore are centered */
167 xcb_change_gc_single(conn, client->titlegc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
168 if (client->titlebar_position == TITLEBAR_OFF && client->borderless) {
169 xcb_rectangle_t crect = {0, 0, client->rect.width, client->rect.height};
170 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
171 } else if (client->titlebar_position == TITLEBAR_OFF && !client->borderless) {
172 xcb_rectangle_t crect = {1, 1, client->rect.width - (1 + 1), client->rect.height - (1 + 1)};
173 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
175 xcb_rectangle_t crect = {2, decoration_height,
176 client->rect.width - (2 + 2), client->rect.height - 2 - decoration_height};
177 xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &crect);
181 mode = container_mode(client->container, false);
183 if (client->titlebar_position != TITLEBAR_OFF) {
185 xcb_draw_line(conn, drawable, gc, color->border, offset_x, offset_y, offset_x + client->rect.width, offset_y);
186 if (mode == MODE_DEFAULT ||
187 CIRCLEQ_NEXT_OR_NULL(&(client->container->clients), client, clients) == NULL)
188 xcb_draw_line(conn, drawable, gc, color->border,
189 offset_x + 2, /* x */
190 offset_y + font->height + 3, /* y */
191 offset_x + client->rect.width - 3, /* to_x */
192 offset_y + font->height + 3 /* to_y */);
195 /* If the client has a title, we draw it */
196 if (client->name != NULL &&
197 (mode != MODE_DEFAULT || client->titlebar_position != TITLEBAR_OFF)) {
199 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT;
200 uint32_t values[] = { color->text, color->background, font->id };
201 xcb_change_gc(conn, gc, mask, values);
203 /* name_len == -1 means this is a legacy application which does not specify _NET_WM_NAME,
204 and we don’t handle the old window name (COMPOUND_TEXT) but only _NET_WM_NAME, which
206 if (client->name_len == -1)
207 xcb_image_text_8(conn, strlen(client->name), drawable, gc, offset_x + 3 /* X */,
208 offset_y + font->height /* Y = baseline of font */, client->name);
210 xcb_image_text_16(conn, client->name_len, drawable, gc, offset_x + 3 /* X */,
211 offset_y + font->height /* Y = baseline of font */, (xcb_char2b_t*)client->name);
216 * Pushes the client’s x and y coordinates to X11
219 void reposition_client(xcb_connection_t *conn, Client *client) {
222 DLOG("frame 0x%08x needs to be pushed to %dx%d\n", client->frame, client->rect.x, client->rect.y);
223 /* Note: We can use a pointer to client->x like an array of uint32_ts
224 because it is followed by client->y by definition */
225 xcb_configure_window(conn, client->frame, XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y, &(client->rect.x));
227 if (!client_is_floating(client))
230 /* If the client is floating, we need to check if we moved it to a different workspace */
231 screen = get_screen_containing(client->rect.x + (client->rect.width / 2),
232 client->rect.y + (client->rect.height / 2));
233 if (client->workspace->screen == screen)
236 if (screen == NULL) {
237 DLOG("Boundary checking disabled, no screen found for (%d, %d)\n", client->rect.x, client->rect.y);
241 DLOG("Client is on workspace %p with screen %p\n", client->workspace, client->workspace->screen);
242 DLOG("but screen at %d, %d is %p\n", client->rect.x, client->rect.y, screen);
243 floating_assign_to_workspace(client, screen->current_workspace);
245 set_focus(conn, client, true);
249 * Pushes the client’s width/height to X11 and resizes the child window. This
250 * function also updates the client’s position, so if you work on tiling clients
251 * only, you can use this function instead of separate calls to reposition_client
252 * and resize_client to reduce flickering.
255 void resize_client(xcb_connection_t *conn, Client *client) {
256 i3Font *font = load_font(conn, config.font);
258 DLOG("frame 0x%08x needs to be pushed to %dx%d\n", client->frame, client->rect.x, client->rect.y);
259 DLOG("resizing client 0x%08x to %d x %d\n", client->frame, client->rect.width, client->rect.height);
260 xcb_configure_window(conn, client->frame,
261 XCB_CONFIG_WINDOW_X |
262 XCB_CONFIG_WINDOW_Y |
263 XCB_CONFIG_WINDOW_WIDTH |
264 XCB_CONFIG_WINDOW_HEIGHT,
267 /* Adjust the position of the child inside its frame.
268 * The coordinates of the child are relative to its frame, we
269 * add a border of 2 pixel to each value */
270 uint32_t mask = XCB_CONFIG_WINDOW_X |
271 XCB_CONFIG_WINDOW_Y |
272 XCB_CONFIG_WINDOW_WIDTH |
273 XCB_CONFIG_WINDOW_HEIGHT;
274 Rect *rect = &(client->child_rect);
275 switch (container_mode(client->container, true)) {
280 rect->width = client->rect.width - (2 + 2);
281 rect->height = client->rect.height - 2;
284 if (client->titlebar_position == TITLEBAR_OFF && client->borderless) {
287 rect->width = client->rect.width;
288 rect->height = client->rect.height;
289 } else if (client->titlebar_position == TITLEBAR_OFF && !client->borderless) {
292 rect->width = client->rect.width - 1 - 1;
293 rect->height = client->rect.height - 1 - 1;
296 rect->y = font->height + 2 + 2;
297 rect->width = client->rect.width - (2 + 2);
298 rect->height = client->rect.height - ((font->height + 2 + 2) + 2);
303 rect->width -= (2 * client->border_width);
304 rect->height -= (2 * client->border_width);
306 /* Obey the ratio, if any */
307 if (client->proportional_height != 0 &&
308 client->proportional_width != 0) {
309 DLOG("proportional height = %d, width = %d\n", client->proportional_height, client->proportional_width);
310 double new_height = rect->height + 1;
311 int new_width = rect->width;
313 while (new_height > rect->height) {
314 new_height = ((double)client->proportional_height / client->proportional_width) * new_width;
316 if (new_height > rect->height)
319 /* Center the window */
320 rect->y += ceil(rect->height / 2) - floor(new_height / 2);
321 rect->x += ceil(rect->width / 2) - floor(new_width / 2);
323 rect->height = new_height;
324 rect->width = new_width;
325 DLOG("new_height = %f, new_width = %d\n", new_height, new_width);
328 if (client->height_increment > 1) {
329 int old_height = rect->height;
330 rect->height -= (rect->height - client->base_height) % client->height_increment;
331 DLOG("Lost %d pixel due to client's height_increment (%d px, base_height = %d)\n",
332 old_height - rect->height, client->height_increment, client->base_height);
335 if (client->width_increment > 1) {
336 int old_width = rect->width;
337 rect->width -= (rect->width - client->base_width) % client->width_increment;
338 DLOG("Lost %d pixel due to client's width_increment (%d px, base_width = %d)\n",
339 old_width - rect->width, client->width_increment, client->base_width);
342 DLOG("child will be at %dx%d with size %dx%d\n", rect->x, rect->y, rect->width, rect->height);
344 xcb_configure_window(conn, client->child, mask, &(rect->x));
346 /* After configuring a child window we need to fake a configure_notify_event (see ICCCM 4.2.3).
347 * This is necessary to inform the client of its position relative to the root window,
348 * not relative to its frame (as done in the configure_notify_event by the x server). */
349 fake_absolute_configure_notify(conn, client);
351 /* Force redrawing after resizing the window because any now lost
352 * pixels could contain old garbage. */
353 xcb_expose_event_t generated;
354 generated.window = client->frame;
356 handle_expose_event(NULL, conn, &generated);
360 * Renders the given container. Is called by render_layout() or individually (for example
361 * when focus changes in a stacking container)
364 void render_container(xcb_connection_t *conn, Container *container) {
366 int num_clients = 0, current_client = 0;
368 CIRCLEQ_FOREACH(client, &(container->clients), clients)
371 if (container->mode == MODE_DEFAULT) {
372 int height = (container->height / max(1, num_clients));
373 int rest_pixels = (container->height % max(1, num_clients));
374 DLOG("height per client = %d, rest = %d\n", height, rest_pixels);
376 CIRCLEQ_FOREACH(client, &(container->clients), clients) {
377 /* If the client is in fullscreen mode, it does not get reconfigured */
378 if (container->workspace->fullscreen_client == client) {
383 /* If we have some pixels left to distribute, add one
384 * pixel to each client as long as possible. */
385 int this_height = height;
386 if (rest_pixels > 0) {
390 /* Check if we changed client->x or client->y by updating it.
391 * Note the bitwise OR instead of logical OR to force evaluation of both statements */
392 if (client->force_reconfigure |
393 update_if_necessary(&(client->rect.x), container->x) |
394 update_if_necessary(&(client->rect.y), container->y +
395 (container->height / num_clients) * current_client) |
396 update_if_necessary(&(client->rect.width), container->width) |
397 update_if_necessary(&(client->rect.height), this_height))
398 resize_client(conn, client);
400 /* TODO: vertical default layout */
402 client->force_reconfigure = false;
407 i3Font *font = load_font(conn, config.font);
408 int decoration_height = (font->height + 2 + 2);
409 struct Stack_Window *stack_win = &(container->stack_win);
410 /* The size for each tab (width), necessary as a separate variable
411 * because num_clients gets fixed to 1 in tabbed mode. */
412 int size_each = (num_clients == 0 ? container->width : container->width / num_clients);
413 int stack_lines = num_clients;
415 /* Check if we need to remap our stack title window, it gets unmapped when the container
416 is empty in src/handlers.c:unmap_notify() */
417 if (stack_win->rect.height == 0 && num_clients > 1) {
418 DLOG("remapping stack win\n");
419 xcb_map_window(conn, stack_win->window);
420 } else DLOG("not remapping stackwin, height = %d, num_clients = %d\n",
421 stack_win->rect.height, num_clients);
423 if (container->mode == MODE_TABBED) {
424 /* By setting num_clients to 1 we force that the stack window will be only one line
425 * high. The rest of the code is useful in both cases. */
426 DLOG("tabbed mode, setting num_clients = 1\n");
431 if (container->stack_limit == STACK_LIMIT_COLS) {
432 stack_lines = ceil((float)num_clients / container->stack_limit_value);
433 } else if (container->stack_limit == STACK_LIMIT_ROWS) {
434 stack_lines = min(num_clients, container->stack_limit_value);
437 int height = decoration_height * stack_lines;
438 if (num_clients == 1) {
440 stack_win->rect.height = 0;
441 xcb_unmap_window(conn, stack_win->window);
443 DLOG("Just one client, setting height to %d\n", height);
446 /* Check if we need to reconfigure our stack title window */
448 update_if_necessary(&(stack_win->rect.x), container->x) |
449 update_if_necessary(&(stack_win->rect.y), container->y) |
450 update_if_necessary(&(stack_win->rect.width), container->width) |
451 update_if_necessary(&(stack_win->rect.height), height))) {
453 /* Configuration can happen in two slightly different ways:
455 If there is no client in fullscreen mode, 5 parameters are passed
456 (x, y, width, height, stack mode is set to above which means top-most position).
458 If there is a fullscreen client, the fourth parameter is set to to the
459 fullscreen window as sibling and the stack mode is set to below, which means
460 that the stack_window will be placed just below the sibling, that is, under
461 the fullscreen window.
463 uint32_t values[] = { stack_win->rect.x, stack_win->rect.y,
464 stack_win->rect.width, stack_win->rect.height,
465 XCB_STACK_MODE_ABOVE, XCB_STACK_MODE_BELOW };
466 uint32_t mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y |
467 XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT |
468 XCB_CONFIG_WINDOW_STACK_MODE;
470 /* Raise the stack window, but keep it below the first floating client
471 * and below the fullscreen client (if any) */
472 Client *first_floating = TAILQ_FIRST(&(container->workspace->floating_clients));
473 if (first_floating != TAILQ_END(&(container->workspace->floating_clients))) {
474 mask |= XCB_CONFIG_WINDOW_SIBLING;
475 values[4] = first_floating->frame;
476 } else if (container->workspace->fullscreen_client != NULL) {
477 mask |= XCB_CONFIG_WINDOW_SIBLING;
478 values[4] = container->workspace->fullscreen_client->frame;
481 xcb_configure_window(conn, stack_win->window, mask, values);
484 /* Prepare the pixmap for usage */
485 cached_pixmap_prepare(conn, &(stack_win->pixmap));
487 int current_row = 0, current_col = 0;
490 if (container->stack_limit == STACK_LIMIT_COLS) {
491 /* wrap stores the number of rows after which we will
492 * wrap to a new column. */
493 wrap = ceil((float)num_clients / container->stack_limit_value);
494 } else if (container->stack_limit == STACK_LIMIT_ROWS) {
495 /* When limiting rows, the wrap variable serves a
496 * slightly different purpose: it holds the number of
497 * pixels which each client will get. This is constant
498 * during the following loop, so it saves us some
499 * divisions and ceil()ing. */
500 wrap = (stack_win->rect.width / ceil((float)num_clients / container->stack_limit_value));
503 /* Render the decorations of all clients */
504 CIRCLEQ_FOREACH(client, &(container->clients), clients) {
505 /* If the client is in fullscreen mode, it does not get reconfigured */
506 if (container->workspace->fullscreen_client == client) {
511 /* Check if we changed client->x or client->y by updating it.
512 * Note the bitwise OR instead of logical OR to force evaluation of all statements */
513 if (client->force_reconfigure |
514 update_if_necessary(&(client->rect.x), container->x) |
515 update_if_necessary(&(client->rect.y), container->y + height) |
516 update_if_necessary(&(client->rect.width), container->width) |
517 update_if_necessary(&(client->rect.height), container->height - height))
518 resize_client(conn, client);
520 client->force_reconfigure = false;
524 if (container->mode == MODE_STACK ||
525 (container->mode == MODE_TABBED &&
526 container->stack_limit == STACK_LIMIT_COLS)) {
527 if (container->stack_limit == STACK_LIMIT_COLS) {
528 offset_x = current_col * (stack_win->rect.width / container->stack_limit_value);
529 offset_y = current_row * decoration_height;
531 if ((current_row % wrap) == 0) {
535 } else if (container->stack_limit == STACK_LIMIT_ROWS) {
536 offset_x = current_col * wrap;
537 offset_y = current_row * decoration_height;
539 if ((current_row % container->stack_limit_value) == 0) {
544 offset_y = current_client * decoration_height;
547 } else if (container->mode == MODE_TABBED) {
548 if (container->stack_limit == STACK_LIMIT_ROWS) {
549 LOG("You limited a tabbed container in its rows. "
550 "This makes no sense in tabbing mode.\n");
552 offset_x = current_client++ * size_each;
554 decorate_window(conn, client, stack_win->pixmap.id, stack_win->pixmap.gc,
558 /* Check if we need to fill one column because of an uneven
559 * amount of windows */
560 if (container->mode == MODE_STACK) {
561 if (container->stack_limit == STACK_LIMIT_COLS && (current_col % 2) != 0) {
562 xcb_change_gc_single(conn, stack_win->pixmap.gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
564 int offset_x = current_col * (stack_win->rect.width / container->stack_limit_value);
565 int offset_y = current_row * decoration_height;
566 xcb_rectangle_t rect = {offset_x, offset_y,
567 offset_x + container->width,
568 offset_y + decoration_height };
569 xcb_poly_fill_rectangle(conn, stack_win->pixmap.id, stack_win->pixmap.gc, 1, &rect);
570 } else if (container->stack_limit == STACK_LIMIT_ROWS && (current_row % 2) != 0) {
571 xcb_change_gc_single(conn, stack_win->pixmap.gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
573 int offset_x = current_col * wrap;
574 int offset_y = current_row * decoration_height;
575 xcb_rectangle_t rect = {offset_x, offset_y,
576 offset_x + container->width,
577 offset_y + decoration_height };
578 xcb_poly_fill_rectangle(conn, stack_win->pixmap.id, stack_win->pixmap.gc, 1, &rect);
582 xcb_copy_area(conn, stack_win->pixmap.id, stack_win->window, stack_win->pixmap.gc,
583 0, 0, 0, 0, stack_win->rect.width, stack_win->rect.height);
587 static void render_bars(xcb_connection_t *conn, Workspace *r_ws, int width, int *height) {
589 SLIST_FOREACH(client, &(r_ws->screen->dock_clients), dock_clients) {
590 DLOG("client is at %d, should be at %d\n", client->rect.y, *height);
591 if (client->force_reconfigure |
592 update_if_necessary(&(client->rect.x), r_ws->rect.x) |
593 update_if_necessary(&(client->rect.y), *height))
594 reposition_client(conn, client);
596 if (client->force_reconfigure |
597 update_if_necessary(&(client->rect.width), width) |
598 update_if_necessary(&(client->rect.height), client->desired_height))
599 resize_client(conn, client);
601 client->force_reconfigure = false;
602 DLOG("desired_height = %d\n", client->desired_height);
603 *height += client->desired_height;
607 static void render_internal_bar(xcb_connection_t *conn, Workspace *r_ws, int width, int height) {
608 i3Font *font = load_font(conn, config.font);
609 i3Screen *screen = r_ws->screen;
610 enum { SET_NORMAL = 0, SET_FOCUSED = 1 };
612 /* Fill the whole bar in black */
613 xcb_change_gc_single(conn, screen->bargc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
614 xcb_rectangle_t rect = {0, 0, width, height};
615 xcb_poly_fill_rectangle(conn, screen->bar, screen->bargc, 1, &rect);
618 xcb_change_gc_single(conn, screen->bargc, XCB_GC_FONT, font->id);
622 TAILQ_FOREACH(ws, workspaces, workspaces) {
623 if (ws->screen != screen)
626 struct Colortriple *color;
628 if (screen->current_workspace == ws)
629 color = &(config.bar.focused);
631 color = &(config.bar.urgent);
632 else color = &(config.bar.unfocused);
634 /* Draw the outer rect */
635 xcb_draw_rect(conn, screen->bar, screen->bargc, color->border,
638 ws->text_width + 5 + 5, /* width = text width + 5 px left + 5px right */
639 height - 2 /* height = max. height - 1 px upper and 1 px bottom border */);
641 /* Draw the background of this rect */
642 xcb_draw_rect(conn, screen->bar, screen->bargc, color->background,
645 ws->text_width + 4 + 4,
648 xcb_change_gc_single(conn, screen->bargc, XCB_GC_FOREGROUND, color->text);
649 xcb_change_gc_single(conn, screen->bargc, XCB_GC_BACKGROUND, color->background);
650 xcb_image_text_16(conn, ws->name_len, screen->bar, screen->bargc, drawn + 5 /* X */,
651 font->height + 1 /* Y = baseline of font */,
652 (xcb_char2b_t*)ws->name);
653 drawn += ws->text_width + 12;
658 * Modifies the event mask of all clients on the given workspace to either ignore or to handle
659 * enter notifies. It is handy to ignore notifies because they will be sent when a window is mapped
660 * under the cursor, thus when the user didn’t enter the window actively at all.
663 void ignore_enter_notify_forall(xcb_connection_t *conn, Workspace *workspace, bool ignore_enter_notify) {
667 FOR_TABLE(workspace) {
668 if (workspace->table[cols][rows] == NULL)
671 CIRCLEQ_FOREACH(client, &(workspace->table[cols][rows]->clients), clients) {
672 /* Change event mask for the decorations */
673 values[0] = FRAME_EVENT_MASK;
674 if (ignore_enter_notify)
675 values[0] &= ~(XCB_EVENT_MASK_ENTER_WINDOW);
676 xcb_change_window_attributes(conn, client->frame, XCB_CW_EVENT_MASK, values);
678 /* Change event mask for the child itself */
679 values[0] = CHILD_EVENT_MASK;
680 if (ignore_enter_notify)
681 values[0] &= ~(XCB_EVENT_MASK_ENTER_WINDOW);
682 xcb_change_window_attributes(conn, client->child, XCB_CW_EVENT_MASK, values);
688 * Renders the given workspace on the given screen
691 void render_workspace(xcb_connection_t *conn, i3Screen *screen, Workspace *r_ws) {
692 i3Font *font = load_font(conn, config.font);
693 int width = r_ws->rect.width;
694 int height = r_ws->rect.height;
696 /* Reserve space for dock clients */
698 SLIST_FOREACH(client, &(screen->dock_clients), dock_clients)
699 height -= client->desired_height;
701 /* Space for the internal bar */
702 height -= (font->height + 6);
704 int xoffset[r_ws->rows];
705 int yoffset[r_ws->cols];
706 /* Initialize offsets */
707 for (int cols = 0; cols < r_ws->cols; cols++)
708 yoffset[cols] = r_ws->rect.y;
709 for (int rows = 0; rows < r_ws->rows; rows++)
710 xoffset[rows] = r_ws->rect.x;
712 ignore_enter_notify_forall(conn, r_ws, true);
714 /* Go through the whole table and render what’s necessary */
716 Container *container = r_ws->table[cols][rows];
717 if (container == NULL)
719 int single_width = -1, single_height = -1;
720 /* Update position of the container */
721 container->row = rows;
722 container->col = cols;
723 container->x = xoffset[rows];
724 container->y = yoffset[cols];
725 container->width = 0;
727 for (int c = 0; c < container->colspan; c++) {
728 if (r_ws->width_factor[cols+c] == 0)
729 container->width += (width / r_ws->cols);
730 else container->width += get_unoccupied_x(r_ws) * r_ws->width_factor[cols+c];
732 if (single_width == -1)
733 single_width = container->width;
736 DLOG("height is %d\n", height);
738 container->height = 0;
740 for (int c = 0; c < container->rowspan; c++) {
741 if (r_ws->height_factor[rows+c] == 0)
742 container->height += (height / r_ws->rows);
743 else container->height += get_unoccupied_y(r_ws) * r_ws->height_factor[rows+c];
745 if (single_height == -1)
746 single_height = container->height;
749 /* Render the container if it is not empty */
750 render_container(conn, container);
752 xoffset[rows] += single_width;
753 yoffset[cols] += single_height;
756 ignore_enter_notify_forall(conn, r_ws, false);
758 render_bars(conn, r_ws, width, &height);
759 render_internal_bar(conn, r_ws, width, font->height + 6);
763 * Renders the whole layout, that is: Go through each screen, each workspace, each container
764 * and render each client. This also renders the bars.
766 * If you don’t need to render *everything*, you should call render_container on the container
767 * you want to refresh.
770 void render_layout(xcb_connection_t *conn) {
773 if (virtual_screens == NULL)
776 TAILQ_FOREACH(screen, virtual_screens, screens)
777 if (screen->current_workspace != NULL)
778 render_workspace(conn, screen, screen->current_workspace);