407 lines
15 KiB
C
407 lines
15 KiB
C
/*
|
||
* vim:ts=8:expandtab
|
||
*
|
||
* i3 - an improved dynamic tiling window manager
|
||
*
|
||
* © 2009 Michael Stapelberg and contributors
|
||
*
|
||
* See file LICENSE for license information.
|
||
*
|
||
* table.c: Functions/macros for easy modifying/accessing of _the_ table (defining our
|
||
* layout).
|
||
*
|
||
*/
|
||
#include <stdio.h>
|
||
#include <assert.h>
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
#include <sys/types.h>
|
||
#include <unistd.h>
|
||
#include <stdbool.h>
|
||
#include <assert.h>
|
||
|
||
#include "data.h"
|
||
#include "table.h"
|
||
#include "util.h"
|
||
#include "i3.h"
|
||
#include "layout.h"
|
||
#include "config.h"
|
||
#include "workspace.h"
|
||
#include "log.h"
|
||
|
||
int current_workspace = 0;
|
||
int num_workspaces = 1;
|
||
struct workspaces_head *workspaces;
|
||
/* Convenience pointer to the current workspace */
|
||
Workspace *c_ws;
|
||
int current_col = 0;
|
||
int current_row = 0;
|
||
|
||
/*
|
||
* Initialize table
|
||
*
|
||
*/
|
||
void init_table() {
|
||
workspaces = scalloc(sizeof(struct workspaces_head));
|
||
TAILQ_INIT(workspaces);
|
||
|
||
c_ws = scalloc(sizeof(Workspace));
|
||
workspace_set_name(c_ws, NULL);
|
||
TAILQ_INIT(&(c_ws->floating_clients));
|
||
TAILQ_INSERT_TAIL(workspaces, c_ws, workspaces);
|
||
}
|
||
|
||
static void new_container(Workspace *workspace, Container **container, int col, int row, bool skip_layout_switch) {
|
||
Container *new;
|
||
new = *container = scalloc(sizeof(Container));
|
||
CIRCLEQ_INIT(&(new->clients));
|
||
new->colspan = 1;
|
||
new->rowspan = 1;
|
||
new->col = col;
|
||
new->row = row;
|
||
new->workspace = workspace;
|
||
if (!skip_layout_switch)
|
||
switch_layout_mode(global_conn, new, config.container_mode);
|
||
new->stack_limit = config.container_stack_limit;
|
||
new->stack_limit_value = config.container_stack_limit_value;
|
||
}
|
||
|
||
/*
|
||
* Add one row to the table
|
||
*
|
||
*/
|
||
void expand_table_rows(Workspace *workspace) {
|
||
workspace->rows++;
|
||
|
||
workspace->height_factor = realloc(workspace->height_factor, sizeof(float) * workspace->rows);
|
||
workspace->height_factor[workspace->rows-1] = 0;
|
||
|
||
for (int c = 0; c < workspace->cols; c++) {
|
||
workspace->table[c] = realloc(workspace->table[c], sizeof(Container*) * workspace->rows);
|
||
new_container(workspace, &(workspace->table[c][workspace->rows-1]), c, workspace->rows-1, true);
|
||
}
|
||
|
||
/* We need to switch the layout in a separate step because it could
|
||
* happen that render_layout() (being called by switch_layout_mode())
|
||
* would access containers which were not yet initialized. */
|
||
for (int c = 0; c < workspace->cols; c++)
|
||
switch_layout_mode(global_conn, workspace->table[c][workspace->rows-1], config.container_mode);
|
||
}
|
||
|
||
/*
|
||
* Adds one row at the head of the table
|
||
*
|
||
*/
|
||
void expand_table_rows_at_head(Workspace *workspace) {
|
||
workspace->rows++;
|
||
|
||
workspace->height_factor = realloc(workspace->height_factor, sizeof(float) * workspace->rows);
|
||
|
||
DLOG("rows = %d\n", workspace->rows);
|
||
for (int rows = (workspace->rows - 1); rows >= 1; rows--) {
|
||
DLOG("Moving height_factor %d (%f) to %d\n", rows-1, workspace->height_factor[rows-1], rows);
|
||
workspace->height_factor[rows] = workspace->height_factor[rows-1];
|
||
}
|
||
|
||
workspace->height_factor[0] = 0;
|
||
|
||
for (int cols = 0; cols < workspace->cols; cols++)
|
||
workspace->table[cols] = realloc(workspace->table[cols], sizeof(Container*) * workspace->rows);
|
||
|
||
/* Move the other rows */
|
||
for (int cols = 0; cols < workspace->cols; cols++)
|
||
for (int rows = workspace->rows - 1; rows > 0; rows--) {
|
||
DLOG("Moving row %d to %d\n", rows-1, rows);
|
||
workspace->table[cols][rows] = workspace->table[cols][rows-1];
|
||
workspace->table[cols][rows]->row = rows;
|
||
}
|
||
|
||
for (int cols = 0; cols < workspace->cols; cols++)
|
||
new_container(workspace, &(workspace->table[cols][0]), cols, 0, false);
|
||
}
|
||
|
||
/*
|
||
* Add one column to the table
|
||
*
|
||
*/
|
||
void expand_table_cols(Workspace *workspace) {
|
||
workspace->cols++;
|
||
|
||
workspace->width_factor = realloc(workspace->width_factor, sizeof(float) * workspace->cols);
|
||
workspace->width_factor[workspace->cols-1] = 0;
|
||
|
||
workspace->table = realloc(workspace->table, sizeof(Container**) * workspace->cols);
|
||
workspace->table[workspace->cols-1] = scalloc(sizeof(Container*) * workspace->rows);
|
||
|
||
for (int c = 0; c < workspace->rows; c++)
|
||
new_container(workspace, &(workspace->table[workspace->cols-1][c]), workspace->cols-1, c, true);
|
||
|
||
for (int c = 0; c < workspace->rows; c++)
|
||
switch_layout_mode(global_conn, workspace->table[workspace->cols-1][c], config.container_mode);
|
||
}
|
||
|
||
/*
|
||
* Inserts one column at the table’s head
|
||
*
|
||
*/
|
||
void expand_table_cols_at_head(Workspace *workspace) {
|
||
workspace->cols++;
|
||
|
||
workspace->width_factor = realloc(workspace->width_factor, sizeof(float) * workspace->cols);
|
||
|
||
DLOG("cols = %d\n", workspace->cols);
|
||
for (int cols = (workspace->cols - 1); cols >= 1; cols--) {
|
||
DLOG("Moving width_factor %d (%f) to %d\n", cols-1, workspace->width_factor[cols-1], cols);
|
||
workspace->width_factor[cols] = workspace->width_factor[cols-1];
|
||
}
|
||
|
||
workspace->width_factor[0] = 0;
|
||
|
||
workspace->table = realloc(workspace->table, sizeof(Container**) * workspace->cols);
|
||
workspace->table[workspace->cols-1] = scalloc(sizeof(Container*) * workspace->rows);
|
||
|
||
/* Move the other columns */
|
||
for (int rows = 0; rows < workspace->rows; rows++)
|
||
for (int cols = workspace->cols - 1; cols > 0; cols--) {
|
||
DLOG("Moving col %d to %d\n", cols-1, cols);
|
||
workspace->table[cols][rows] = workspace->table[cols-1][rows];
|
||
workspace->table[cols][rows]->col = cols;
|
||
}
|
||
|
||
for (int rows = 0; rows < workspace->rows; rows++)
|
||
new_container(workspace, &(workspace->table[0][rows]), 0, rows, false);
|
||
}
|
||
|
||
/*
|
||
* Shrinks the table by one column.
|
||
*
|
||
* The containers themselves are freed in move_columns_from() or move_rows_from(). Therefore, this
|
||
* function may only be called from move_*() or after making sure that the containers are freed
|
||
* properly.
|
||
*
|
||
*/
|
||
static void shrink_table_cols(Workspace *workspace) {
|
||
float free_space = workspace->width_factor[workspace->cols-1];
|
||
|
||
workspace->cols--;
|
||
|
||
/* Shrink the width_factor array */
|
||
workspace->width_factor = realloc(workspace->width_factor, sizeof(float) * workspace->cols);
|
||
|
||
/* Free the container-pointers */
|
||
free(workspace->table[workspace->cols]);
|
||
|
||
/* Re-allocate the table */
|
||
workspace->table = realloc(workspace->table, sizeof(Container**) * workspace->cols);
|
||
|
||
/* Distribute the free space */
|
||
if (free_space == 0)
|
||
return;
|
||
|
||
for (int cols = (workspace->cols-1); cols >= 0; cols--) {
|
||
if (workspace->width_factor[cols] == 0)
|
||
continue;
|
||
|
||
DLOG("Added free space (%f) to %d (had %f)\n", free_space, cols,
|
||
workspace->width_factor[cols]);
|
||
workspace->width_factor[cols] += free_space;
|
||
break;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* See shrink_table_cols()
|
||
*
|
||
*/
|
||
static void shrink_table_rows(Workspace *workspace) {
|
||
float free_space = workspace->height_factor[workspace->rows-1];
|
||
|
||
workspace->rows--;
|
||
for (int cols = 0; cols < workspace->cols; cols++)
|
||
workspace->table[cols] = realloc(workspace->table[cols], sizeof(Container*) * workspace->rows);
|
||
|
||
/* Shrink the height_factor array */
|
||
workspace->height_factor = realloc(workspace->height_factor, sizeof(float) * workspace->rows);
|
||
|
||
/* Distribute the free space */
|
||
if (free_space == 0)
|
||
return;
|
||
|
||
for (int rows = (workspace->rows-1); rows >= 0; rows--) {
|
||
if (workspace->height_factor[rows] == 0)
|
||
continue;
|
||
|
||
DLOG("Added free space (%f) to %d (had %f)\n", free_space, rows,
|
||
workspace->height_factor[rows]);
|
||
workspace->height_factor[rows] += free_space;
|
||
break;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Performs simple bounds checking for the given column/row
|
||
*
|
||
*/
|
||
bool cell_exists(Workspace *ws, int col, int row) {
|
||
return (col >= 0 && col < ws->cols) &&
|
||
(row >= 0 && row < ws->rows);
|
||
}
|
||
|
||
static void free_container(xcb_connection_t *conn, Workspace *workspace, int col, int row) {
|
||
Container *old_container = workspace->table[col][row];
|
||
|
||
if (old_container->mode == MODE_STACK || old_container->mode == MODE_TABBED)
|
||
leave_stack_mode(conn, old_container);
|
||
|
||
free(old_container);
|
||
}
|
||
|
||
static void move_columns_from(xcb_connection_t *conn, Workspace *workspace, int cols) {
|
||
DLOG("firstly freeing \n");
|
||
|
||
/* Free the columns which are cleaned up */
|
||
for (int rows = 0; rows < workspace->rows; rows++)
|
||
free_container(conn, workspace, cols-1, rows);
|
||
|
||
for (; cols < workspace->cols; cols++)
|
||
for (int rows = 0; rows < workspace->rows; rows++) {
|
||
DLOG("at col = %d, row = %d\n", cols, rows);
|
||
Container *new_container = workspace->table[cols][rows];
|
||
|
||
DLOG("moving cols = %d to cols -1 = %d\n", cols, cols-1);
|
||
workspace->table[cols-1][rows] = new_container;
|
||
|
||
new_container->row = rows;
|
||
new_container->col = cols-1;
|
||
}
|
||
}
|
||
|
||
static void move_rows_from(xcb_connection_t *conn, Workspace *workspace, int rows) {
|
||
for (int cols = 0; cols < workspace->cols; cols++)
|
||
free_container(conn, workspace, cols, rows-1);
|
||
|
||
for (; rows < workspace->rows; rows++)
|
||
for (int cols = 0; cols < workspace->cols; cols++) {
|
||
Container *new_container = workspace->table[cols][rows];
|
||
|
||
DLOG("moving rows = %d to rows -1 = %d\n", rows, rows - 1);
|
||
workspace->table[cols][rows-1] = new_container;
|
||
|
||
new_container->row = rows-1;
|
||
new_container->col = cols;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Prints the table’s contents in human-readable form for debugging
|
||
*
|
||
*/
|
||
void dump_table(xcb_connection_t *conn, Workspace *workspace) {
|
||
DLOG("dump_table()\n");
|
||
FOR_TABLE(workspace) {
|
||
Container *con = workspace->table[cols][rows];
|
||
DLOG("----\n");
|
||
DLOG("at col=%d, row=%d\n", cols, rows);
|
||
DLOG("currently_focused = %p\n", con->currently_focused);
|
||
Client *loop;
|
||
CIRCLEQ_FOREACH(loop, &(con->clients), clients) {
|
||
DLOG("got client %08x / %s\n", loop->child, loop->name);
|
||
}
|
||
DLOG("----\n");
|
||
}
|
||
DLOG("done\n");
|
||
}
|
||
|
||
/*
|
||
* Shrinks the table by "compacting" it, that is, removing completely empty rows/columns
|
||
*
|
||
*/
|
||
void cleanup_table(xcb_connection_t *conn, Workspace *workspace) {
|
||
DLOG("cleanup_table()\n");
|
||
|
||
/* Check for empty columns if we got more than one column */
|
||
for (int cols = 0; (workspace->cols > 1) && (cols < workspace->cols);) {
|
||
bool completely_empty = true;
|
||
for (int rows = 0; rows < workspace->rows; rows++)
|
||
if (workspace->table[cols][rows]->currently_focused != NULL) {
|
||
completely_empty = false;
|
||
break;
|
||
}
|
||
if (completely_empty) {
|
||
DLOG("Removing completely empty column %d\n", cols);
|
||
if (cols < (workspace->cols - 1))
|
||
move_columns_from(conn, workspace, cols+1);
|
||
else {
|
||
for (int rows = 0; rows < workspace->rows; rows++)
|
||
free_container(conn, workspace, cols, rows);
|
||
}
|
||
shrink_table_cols(workspace);
|
||
|
||
if (workspace->current_col >= workspace->cols)
|
||
workspace->current_col = workspace->cols - 1;
|
||
} else cols++;
|
||
}
|
||
|
||
/* Check for empty rows if we got more than one row */
|
||
for (int rows = 0; (workspace->rows > 1) && (rows < workspace->rows);) {
|
||
bool completely_empty = true;
|
||
DLOG("Checking row %d\n", rows);
|
||
for (int cols = 0; cols < workspace->cols; cols++)
|
||
if (workspace->table[cols][rows]->currently_focused != NULL) {
|
||
completely_empty = false;
|
||
break;
|
||
}
|
||
if (completely_empty) {
|
||
DLOG("Removing completely empty row %d\n", rows);
|
||
if (rows < (workspace->rows - 1))
|
||
move_rows_from(conn, workspace, rows+1);
|
||
else {
|
||
for (int cols = 0; cols < workspace->cols; cols++)
|
||
free_container(conn, workspace, cols, rows);
|
||
}
|
||
shrink_table_rows(workspace);
|
||
|
||
if (workspace->current_row >= workspace->rows)
|
||
workspace->current_row = workspace->rows - 1;
|
||
} else rows++;
|
||
}
|
||
|
||
/* Boundary checking for current_col and current_row */
|
||
if (current_col >= c_ws->cols)
|
||
current_col = c_ws->cols-1;
|
||
|
||
if (current_row >= c_ws->rows)
|
||
current_row = c_ws->rows-1;
|
||
|
||
if (CUR_CELL->currently_focused != NULL)
|
||
set_focus(conn, CUR_CELL->currently_focused, true);
|
||
}
|
||
|
||
/*
|
||
* Fixes col/rowspan (makes sure there are no overlapping windows, obeys borders).
|
||
*
|
||
*/
|
||
void fix_colrowspan(xcb_connection_t *conn, Workspace *workspace) {
|
||
DLOG("Fixing col/rowspan\n");
|
||
|
||
FOR_TABLE(workspace) {
|
||
Container *con = workspace->table[cols][rows];
|
||
if (con->colspan > 1) {
|
||
DLOG("gots one with colspan %d (at %d c, %d r)\n", con->colspan, cols, rows);
|
||
while (con->colspan > 1 &&
|
||
(!cell_exists(workspace, cols + (con->colspan-1), rows) &&
|
||
workspace->table[cols + (con->colspan - 1)][rows]->currently_focused != NULL))
|
||
con->colspan--;
|
||
DLOG("fixed it to %d\n", con->colspan);
|
||
}
|
||
if (con->rowspan > 1) {
|
||
DLOG("gots one with rowspan %d (at %d c, %d r)\n", con->rowspan, cols, rows);
|
||
while (con->rowspan > 1 &&
|
||
(!cell_exists(workspace, cols, rows + (con->rowspan - 1)) &&
|
||
workspace->table[cols][rows + (con->rowspan - 1)]->currently_focused != NULL))
|
||
con->rowspan--;
|
||
DLOG("fixed it to %d\n", con->rowspan);
|
||
}
|
||
}
|
||
}
|