Implement stack-limit for further defining how stack windows should look
Using this command, you can limit the amount of columns or rows for a stacking container. This allows for better usage of screen estate when using stacking containers with many clients. Examples: i3-msg "stack-limit cols 2" You will now have a stack window which has two columns of windows.
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@ -436,8 +436,8 @@ struct Client {
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};
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/**
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* A container is either in default or stacking mode. It sits inside each cell
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* of the table.
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* A container is either in default, stacking or tabbed mode. There is one for
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* each cell of the table.
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*
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*/
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struct Container {
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@ -466,6 +466,15 @@ struct Container {
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/* Ensure MODE_DEFAULT maps to 0 because we use calloc for
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* initialization later */
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enum { MODE_DEFAULT = 0, MODE_STACK, MODE_TABBED } mode;
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/* When in stacking, one can either have unlimited windows inside the
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* container or set a limit for the rows or columns the stack window
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* should display to use the screen more efficiently. */
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enum { STACK_LIMIT_NONE = 0, STACK_LIMIT_COLS, STACK_LIMIT_ROWS } stack_limit;
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/* The number of columns or rows to limit to, see stack_limit */
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int stack_limit_value;
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CIRCLEQ_HEAD(client_head, Client) clients;
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};
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97
src/click.c
97
src/click.c
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@ -17,6 +17,7 @@
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#include <stdlib.h>
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#include <time.h>
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#include <stdbool.h>
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#include <math.h>
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#include <xcb/xcb.h>
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#include <xcb/xcb_atom.h>
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@ -36,6 +37,19 @@
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#include "floating.h"
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#include "resize.h"
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static struct Stack_Window *get_stack_window(xcb_window_t window_id) {
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struct Stack_Window *current;
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SLIST_FOREACH(current, &stack_wins, stack_windows) {
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if (current->window != window_id)
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continue;
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return current;
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}
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return NULL;
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}
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/*
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* Checks if the button press was on a stack window, handles focus setting and returns true
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* if so, or false otherwise.
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@ -43,45 +57,60 @@
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*/
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static bool button_press_stackwin(xcb_connection_t *conn, xcb_button_press_event_t *event) {
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struct Stack_Window *stack_win;
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SLIST_FOREACH(stack_win, &stack_wins, stack_windows) {
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if (stack_win->window != event->event)
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continue;
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/* A stack window was clicked, we check if it was button4 or button5
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which are scroll up / scroll down. */
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if (event->detail == XCB_BUTTON_INDEX_4 || event->detail == XCB_BUTTON_INDEX_5) {
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direction_t direction = (event->detail == XCB_BUTTON_INDEX_4 ? D_UP : D_DOWN);
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focus_window_in_container(conn, CUR_CELL, direction);
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return true;
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}
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/* It was no scrolling, so we calculate the destination client by
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dividing the Y position of the event through the height of a window
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decoration and then set the focus to this client. */
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i3Font *font = load_font(conn, config.font);
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int decoration_height = (font->height + 2 + 2);
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int destination = (event->event_y / decoration_height),
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c = 0,
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num_clients = 0;
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Client *client;
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CIRCLEQ_FOREACH(client, &(stack_win->container->clients), clients)
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num_clients++;
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if (stack_win->container->mode == MODE_TABBED)
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destination = (event->event_x / (stack_win->container->width / num_clients));
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LOG("Click on stack_win for client %d\n", destination);
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CIRCLEQ_FOREACH(client, &(stack_win->container->clients), clients)
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if (c++ == destination) {
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set_focus(conn, client, true);
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return true;
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}
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/* If we find a corresponding stack window, we can handle the event */
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if ((stack_win = get_stack_window(event->event)) == NULL)
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return false;
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/* A stack window was clicked, we check if it was button4 or button5
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which are scroll up / scroll down. */
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if (event->detail == XCB_BUTTON_INDEX_4 || event->detail == XCB_BUTTON_INDEX_5) {
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direction_t direction = (event->detail == XCB_BUTTON_INDEX_4 ? D_UP : D_DOWN);
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focus_window_in_container(conn, CUR_CELL, direction);
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return true;
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}
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return false;
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/* It was no scrolling, so we calculate the destination client by
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dividing the Y position of the event through the height of a window
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decoration and then set the focus to this client. */
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i3Font *font = load_font(conn, config.font);
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int decoration_height = (font->height + 2 + 2);
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int destination = (event->event_y / decoration_height),
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c = 0,
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num_clients = 0;
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Client *client;
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Container *container = stack_win->container;
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CIRCLEQ_FOREACH(client, &(container->clients), clients)
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num_clients++;
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if (container->mode == MODE_TABBED)
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destination = (event->event_x / (container->width / num_clients));
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else if (container->mode == MODE_STACK &&
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container->stack_limit != STACK_LIMIT_NONE) {
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if (container->stack_limit == STACK_LIMIT_COLS) {
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int wrap = ceil((float)num_clients / container->stack_limit_value);
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int clicked_column = (event->event_x / (stack_win->rect.width / container->stack_limit_value));
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int clicked_row = (event->event_y / decoration_height);
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LOG("clicked on column %d, row %d\n", clicked_column, clicked_row);
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destination = (wrap * clicked_column) + clicked_row;
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} else {
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int width = (stack_win->rect.width / ceil((float)num_clients / container->stack_limit_value));
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int clicked_column = (event->event_x / width);
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int clicked_row = (event->event_y / decoration_height);
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LOG("clicked on column %d, row %d\n", clicked_column, clicked_row);
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destination = (container->stack_limit_value * clicked_column) + clicked_row;
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}
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}
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LOG("Click on stack_win for client %d\n", destination);
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CIRCLEQ_FOREACH(client, &(stack_win->container->clients), clients)
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if (c++ == destination) {
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set_focus(conn, client, true);
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return true;
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}
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return true;
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}
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/*
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@ -865,6 +865,30 @@ void parse_command(xcb_connection_t *conn, const char *command) {
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return;
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}
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if (STARTS_WITH(command, "stack-limit ")) {
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if (last_focused == NULL || client_is_floating(last_focused)) {
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LOG("No container focused\n");
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return;
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}
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const char *rest = command + strlen("stack-limit ");
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if (strncmp(rest, "rows ", strlen("rows ")) == 0) {
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last_focused->container->stack_limit = STACK_LIMIT_ROWS;
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rest += strlen("rows ");
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} else if (strncmp(rest, "cols ", strlen("cols ")) == 0) {
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last_focused->container->stack_limit = STACK_LIMIT_COLS;
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rest += strlen("cols ");
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} else {
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LOG("Syntax: stack-limit <cols|rows> <limit>\n");
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return;
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}
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last_focused->container->stack_limit_value = atoi(rest);
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if (last_focused->container->stack_limit_value == 0)
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last_focused->container->stack_limit = STACK_LIMIT_NONE;
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return;
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}
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/* Is it an <exit>? */
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if (STARTS_WITH(command, "exit")) {
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LOG("User issued exit-command, exiting without error.\n");
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82
src/layout.c
82
src/layout.c
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@ -391,6 +391,7 @@ void render_container(xcb_connection_t *conn, Container *container) {
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/* The size for each tab (width), necessary as a separate variable
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* because num_clients gets fixed to 1 in tabbed mode. */
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int size_each = (num_clients == 0 ? container->width : container->width / num_clients);
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int stack_lines = num_clients;
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/* Check if we need to remap our stack title window, it gets unmapped when the container
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is empty in src/handlers.c:unmap_notify() */
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@ -404,15 +405,21 @@ void render_container(xcb_connection_t *conn, Container *container) {
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/* By setting num_clients to 1 we force that the stack window will be only one line
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* high. The rest of the code is useful in both cases. */
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LOG("tabbed mode, setting num_clients = 1\n");
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if (num_clients > 1)
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num_clients = 1;
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if (stack_lines > 1)
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stack_lines = 1;
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}
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if (container->stack_limit == STACK_LIMIT_COLS) {
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stack_lines = ceil((float)num_clients / container->stack_limit_value);
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} else if (container->stack_limit == STACK_LIMIT_ROWS) {
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stack_lines = min(num_clients, container->stack_limit_value);
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}
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/* Check if we need to reconfigure our stack title window */
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if (update_if_necessary(&(stack_win->rect.x), container->x) |
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update_if_necessary(&(stack_win->rect.y), container->y) |
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update_if_necessary(&(stack_win->rect.width), container->width) |
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update_if_necessary(&(stack_win->rect.height), decoration_height * num_clients)) {
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update_if_necessary(&(stack_win->rect.height), decoration_height * stack_lines)) {
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/* Configuration can happen in two slightly different ways:
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@ -448,6 +455,22 @@ void render_container(xcb_connection_t *conn, Container *container) {
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/* Prepare the pixmap for usage */
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cached_pixmap_prepare(conn, &(stack_win->pixmap));
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int current_row = 0, current_col = 0;
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int wrap = 0;
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if (container->stack_limit == STACK_LIMIT_COLS) {
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/* wrap stores the number of rows after which we will
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* wrap to a new column. */
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wrap = ceil((float)num_clients / container->stack_limit_value);
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} else if (container->stack_limit == STACK_LIMIT_ROWS) {
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/* When limiting rows, the wrap variable serves a
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* slightly different purpose: it holds the number of
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* pixels which each client will get. This is constant
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* during the following loop, so it saves us some
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* divisions and ceil()ing. */
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wrap = (stack_win->rect.width / ceil((float)num_clients / container->stack_limit_value));
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}
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/* Render the decorations of all clients */
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CIRCLEQ_FOREACH(client, &(container->clients), clients) {
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/* If the client is in fullscreen mode, it does not get reconfigured */
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@ -460,23 +483,66 @@ void render_container(xcb_connection_t *conn, Container *container) {
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* Note the bitwise OR instead of logical OR to force evaluation of all statements */
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if (client->force_reconfigure |
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update_if_necessary(&(client->rect.x), container->x) |
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update_if_necessary(&(client->rect.y), container->y + (decoration_height * num_clients)) |
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update_if_necessary(&(client->rect.y), container->y + (decoration_height * stack_lines)) |
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update_if_necessary(&(client->rect.width), container->width) |
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update_if_necessary(&(client->rect.height), container->height - (decoration_height * num_clients)))
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update_if_necessary(&(client->rect.height), container->height - (decoration_height * stack_lines)))
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resize_client(conn, client);
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client->force_reconfigure = false;
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int offset_x = 0;
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int offset_y = 0;
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if (container->mode == MODE_STACK)
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offset_y = current_client++ * decoration_height;
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else if (container->mode == MODE_TABBED)
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if (container->mode == MODE_STACK) {
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if (container->stack_limit == STACK_LIMIT_COLS) {
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offset_x = current_col * (stack_win->rect.width / container->stack_limit_value);
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offset_y = current_row * decoration_height;
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current_row++;
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if ((current_row % wrap) == 0) {
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current_col++;
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current_row = 0;
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}
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} else if (container->stack_limit == STACK_LIMIT_ROWS) {
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offset_x = current_col * wrap;
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offset_y = current_row * decoration_height;
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current_row++;
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if ((current_row % container->stack_limit_value) == 0) {
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current_col++;
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current_row = 0;
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}
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} else {
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offset_y = current_client * decoration_height;
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}
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current_client++;
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} else if (container->mode == MODE_TABBED)
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offset_x = current_client++ * size_each;
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decorate_window(conn, client, stack_win->pixmap.id, stack_win->pixmap.gc,
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offset_x, offset_y);
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}
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/* Check if we need to fill one column because of an uneven
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* amount of windows */
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if (container->mode == MODE_STACK) {
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if (container->stack_limit == STACK_LIMIT_COLS && (current_col % 2) != 0) {
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xcb_change_gc_single(conn, stack_win->pixmap.gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
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int offset_x = current_col * (stack_win->rect.width / container->stack_limit_value);
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int offset_y = current_row * decoration_height;
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xcb_rectangle_t rect = {offset_x, offset_y,
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offset_x + container->width,
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offset_y + decoration_height };
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xcb_poly_fill_rectangle(conn, stack_win->pixmap.id, stack_win->pixmap.gc, 1, &rect);
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} else if (container->stack_limit == STACK_LIMIT_ROWS && (current_row % 2) != 0) {
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xcb_change_gc_single(conn, stack_win->pixmap.gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
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int offset_x = current_col * wrap;
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int offset_y = current_row * decoration_height;
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xcb_rectangle_t rect = {offset_x, offset_y,
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offset_x + container->width,
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offset_y + decoration_height };
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xcb_poly_fill_rectangle(conn, stack_win->pixmap.id, stack_win->pixmap.gc, 1, &rect);
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}
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}
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xcb_copy_area(conn, stack_win->pixmap.id, stack_win->window, stack_win->pixmap.gc,
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0, 0, 0, 0, stack_win->rect.width, stack_win->rect.height);
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}
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@ -39,6 +39,7 @@
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#include "data.h"
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#include "debug.h"
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#include "handlers.h"
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#include "click.h"
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#include "i3.h"
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#include "layout.h"
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#include "queue.h"
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