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/*
mainwindows-layout.c : irssi
Copyright (C) 2001 Timo Sirainen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "module.h"
#include "signals.h"
#include "misc.h"
#include "lib-config/iconfig.h"
#include "settings.h"
#include "mainwindows.h"
#include "gui-windows.h"
#include "textbuffer-view.h"
static void sig_layout_window_save(WINDOW_REC *window, CONFIG_NODE *node)
{
WINDOW_REC *active;
GUI_WINDOW_REC *gui;
gui = WINDOW_GUI(window);
if (gui->sticky) {
iconfig_node_set_bool(node, "sticky", TRUE);
active = gui->parent->active;
if (window != active)
iconfig_node_set_int(node, "parent", active->refnum);
}
if (gui->use_scroll)
iconfig_node_set_bool(node, "scroll", gui->scroll);
}
static void sig_layout_window_restore(WINDOW_REC *window, CONFIG_NODE *node)
{
WINDOW_REC *parent;
GUI_WINDOW_REC *gui;
gui = WINDOW_GUI(window);
parent = window_find_refnum(config_node_get_int(node, "parent", -1));
if (parent != NULL)
gui_window_reparent(window, WINDOW_MAIN(parent));
if (config_node_get_bool(node, "sticky", FALSE))
gui_window_set_sticky(window);
if (config_node_get_str(node, "scroll", NULL) != NULL) {
gui->use_scroll = TRUE;
gui->scroll = config_node_get_bool(node, "scroll", TRUE);
textbuffer_view_set_scroll(gui->view, gui->scroll);
}
}
static void main_window_save(MAIN_WINDOW_REC *window, CONFIG_NODE *node)
{
char num[MAX_INT_STRLEN];
ltoa(num, window->active->refnum);
node = iconfig_node_section(node, num, NODE_TYPE_BLOCK);
iconfig_node_set_int(node, "first_line", window->first_line);
iconfig_node_set_int(node, "lines", window->height);
}
static void sig_layout_save(void)
{
CONFIG_NODE *node;
iconfig_set_str(NULL, "mainwindows", NULL);
node = iconfig_node_traverse("mainwindows", TRUE);
g_slist_foreach(mainwindows, (GFunc) main_window_save, node);
}
static int window_node_cmp(CONFIG_NODE *n1, CONFIG_NODE *n2)
{
return config_node_get_int(n1, "first_line", 0) >
config_node_get_int(n2, "first_line", 0) ? -1 : 1;
}
/* Returns list of mainwindow nodes sorted by first_line
(lowest in screen first) */
static GSList *get_sorted_windows_config(CONFIG_NODE *node)
{
GSList *tmp, *output;
output = NULL;
tmp = config_node_first(node->value);
for (; tmp != NULL; tmp = config_node_next(tmp)) {
output = g_slist_insert_sorted(output, tmp->data,
(GCompareFunc) window_node_cmp);
}
return output;
}
static void sig_layout_restore(void)
{
MAIN_WINDOW_REC *lower_window;
WINDOW_REC *window;
CONFIG_NODE *node;
GSList *tmp, *sorted_config;
int avail_height, height, *heights;
int i, lower_size, windows_count, diff;
node = iconfig_node_traverse("mainwindows", FALSE);
if (node == NULL) return;
sorted_config = get_sorted_windows_config(node);
if (sorted_config == NULL) return;
windows_count = g_slist_length(sorted_config);
/* calculate the saved terminal height */
avail_height = term_height -
screen_reserved_top - screen_reserved_bottom;
height = 0;
heights = g_new0(int, windows_count);
for (i = 0, tmp = sorted_config; tmp != NULL; tmp = tmp->next, i++) {
CONFIG_NODE *node = tmp->data;
heights[i] = config_node_get_int(node, "lines", 0);
height += heights[i];
}
if (avail_height <= (WINDOW_MIN_SIZE*2)+1) {
/* we can fit only one window to screen -
give it all the height we can */
windows_count = 1;
heights[0] = avail_height;
} else if (height != avail_height) {
/* Terminal's height is different from the saved one.
Resize the windows so they fit to screen. */
while (height > avail_height &&
windows_count*(WINDOW_MIN_SIZE+1) > avail_height) {
/* all windows can't fit into screen,
remove the lowest ones */
windows_count--;
}
/* try to keep the windows' size about the same in percents */
for (i = 0; i < windows_count; i++) {
int size = avail_height*heights[i]/height;
if (size < WINDOW_MIN_SIZE+1)
size = WINDOW_MIN_SIZE+1;
heights[i] = size;
}
/* give/remove the last bits */
height = 0;
for (i = 0; i < windows_count; i++)
height += heights[i];
diff = height < avail_height ? 1 : -1;
for (i = 0; height != avail_height; i++) {
if (i == windows_count)
i = 0;
if (heights[i] > WINDOW_MIN_SIZE+1) {
height += diff;
heights[i] += diff;
}
}
}
/* create all the visible windows with correct size */
lower_window = NULL; lower_size = 0;
for (i = 0, tmp = sorted_config; i < windows_count; tmp = tmp->next, i++) {
CONFIG_NODE *node = tmp->data;
if (node->key == NULL) continue;
/* create a new window + mainwindow */
signal_emit("gui window create override", 1,
GINT_TO_POINTER(0));
window = window_create(NULL, TRUE);
window_set_refnum(window, atoi(node->key));
if (lower_size > 0)
mainwindow_set_size(lower_window, lower_size, FALSE);
window_set_active(window);
active_mainwin = WINDOW_MAIN(window);
lower_window = WINDOW_MAIN(window);
lower_size = heights[i];
if (lower_size < WINDOW_MIN_SIZE+1)
lower_size = WINDOW_MIN_SIZE+1;
}
g_slist_free(sorted_config);
g_free(heights);
if (lower_size > 0)
mainwindow_set_size(lower_window, lower_size, FALSE);
}
static void sig_layout_reset(void)
{
iconfig_set_str(NULL, "mainwindows", NULL);
}
void mainwindows_layout_init(void)
{
signal_add("layout save window", (SIGNAL_FUNC) sig_layout_window_save);
signal_add("layout restore window", (SIGNAL_FUNC) sig_layout_window_restore);
signal_add("layout save", (SIGNAL_FUNC) sig_layout_save);
signal_add_first("layout restore", (SIGNAL_FUNC) sig_layout_restore);
signal_add("layout reset", (SIGNAL_FUNC) sig_layout_reset);
}
void mainwindows_layout_deinit(void)
{
signal_remove("layout save window", (SIGNAL_FUNC) sig_layout_window_save);
signal_remove("layout restore window", (SIGNAL_FUNC) sig_layout_window_restore);
signal_remove("layout save", (SIGNAL_FUNC) sig_layout_save);
signal_remove("layout restore", (SIGNAL_FUNC) sig_layout_restore);
signal_remove("layout reset", (SIGNAL_FUNC) sig_layout_reset);
}
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