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awesome/statusbar.c

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/*
* statusbar.c - statusbar functions
*
* Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
*
* 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 <xcb/xcb.h>
#include "client.h"
#include "statusbar.h"
#include "screen.h"
#include "widget.h"
#include "ewmh.h"
extern awesome_t globalconf;
DO_LUA_NEW(extern, statusbar_t, statusbar, "statusbar", statusbar_ref)
DO_LUA_GC(statusbar_t, statusbar, "statusbar", statusbar_unref)
DO_LUA_EQ(statusbar_t, statusbar, "statusbar")
/** Kick out systray windows.
* \param phys_screen Physical screen number.
*/
static void
statusbar_systray_kickout(int phys_screen)
{
xcb_screen_t *s = xutil_screen_get(globalconf.connection, phys_screen);
xcb_reparent_window(globalconf.connection,
globalconf.screens[phys_screen].systray.window,
s->root, -512, -512);
globalconf.screens[phys_screen].systray.parent = s->root;
}
static void
statusbar_systray_refresh(statusbar_t *statusbar)
{
widget_node_t *systray;
if(statusbar->screen == SCREEN_UNDEF)
return;
for(systray = statusbar->widgets; systray; systray = systray->next)
if(systray->widget->type == systray_new)
{
uint32_t config_back[] = { statusbar->colors.bg.pixel };
uint32_t config_win_vals[4];
uint32_t config_win_vals_off[2] = { -512, -512 };
xembed_window_t *em;
position_t pos;
if(statusbar->position
&& systray->widget->isvisible
&& systray->area.width)
{
pos = statusbar->position;
/* Set background of the systray window. */
xcb_change_window_attributes(globalconf.connection,
globalconf.screens[statusbar->phys_screen].systray.window,
XCB_CW_BACK_PIXEL, config_back);
/* Map it. */
xcb_map_window(globalconf.connection, globalconf.screens[statusbar->phys_screen].systray.window);
/* Move it. */
switch(statusbar->position)
{
case Left:
config_win_vals[0] = systray->area.y;
config_win_vals[1] = statusbar->sw->geometry.height - systray->area.x - systray->area.width;
config_win_vals[2] = systray->area.height;
config_win_vals[3] = systray->area.width;
break;
case Right:
config_win_vals[0] = systray->area.y;
config_win_vals[1] = systray->area.x;
config_win_vals[2] = systray->area.height;
config_win_vals[3] = systray->area.width;
break;
default:
config_win_vals[0] = systray->area.x;
config_win_vals[1] = systray->area.y;
config_win_vals[2] = systray->area.width;
config_win_vals[3] = systray->area.height;
break;
}
/* reparent */
if(globalconf.screens[statusbar->phys_screen].systray.parent != statusbar->sw->window)
{
xcb_reparent_window(globalconf.connection,
globalconf.screens[statusbar->phys_screen].systray.window,
statusbar->sw->window,
config_win_vals[0], config_win_vals[1]);
globalconf.screens[statusbar->phys_screen].systray.parent = statusbar->sw->window;
}
xcb_configure_window(globalconf.connection,
globalconf.screens[statusbar->phys_screen].systray.window,
XCB_CONFIG_WINDOW_X
| XCB_CONFIG_WINDOW_Y
| XCB_CONFIG_WINDOW_WIDTH
| XCB_CONFIG_WINDOW_HEIGHT,
config_win_vals);
/* width = height = systray height */
config_win_vals[2] = config_win_vals[3] = systray->area.height;
config_win_vals[0] = 0;
}
else
{
xcb_unmap_window(globalconf.connection, globalconf.screens[statusbar->phys_screen].systray.window);
/* hide */
pos = Off;
}
switch(pos)
{
case Left:
config_win_vals[1] = systray->area.width - config_win_vals[3];
for(em = globalconf.embedded; em; em = em->next)
if(em->phys_screen == statusbar->phys_screen)
{
if(config_win_vals[1] - config_win_vals[2] >= (uint32_t) statusbar->sw->geometry.y)
{
xcb_map_window(globalconf.connection, em->win);
xcb_configure_window(globalconf.connection, em->win,
XCB_CONFIG_WINDOW_X
| XCB_CONFIG_WINDOW_Y
| XCB_CONFIG_WINDOW_WIDTH
| XCB_CONFIG_WINDOW_HEIGHT,
config_win_vals);
config_win_vals[1] -= config_win_vals[3];
}
else
xcb_configure_window(globalconf.connection, em->win,
XCB_CONFIG_WINDOW_X
| XCB_CONFIG_WINDOW_Y,
config_win_vals_off);
}
break;
case Right:
config_win_vals[1] = 0;
for(em = globalconf.embedded; em; em = em->next)
if(em->phys_screen == statusbar->phys_screen)
{
if(config_win_vals[1] + config_win_vals[3] <= (uint32_t) statusbar->sw->geometry.y + statusbar->ctx->width)
{
xcb_map_window(globalconf.connection, em->win);
xcb_configure_window(globalconf.connection, em->win,
XCB_CONFIG_WINDOW_X
| XCB_CONFIG_WINDOW_Y
| XCB_CONFIG_WINDOW_WIDTH
| XCB_CONFIG_WINDOW_HEIGHT,
config_win_vals);
config_win_vals[1] += config_win_vals[3];
}
else
xcb_configure_window(globalconf.connection, em->win,
XCB_CONFIG_WINDOW_X
| XCB_CONFIG_WINDOW_Y,
config_win_vals_off);
}
break;
case Top:
case Bottom:
config_win_vals[1] = 0;
for(em = globalconf.embedded; em; em = em->next)
if(em->phys_screen == statusbar->phys_screen)
{
/* if(x + width < systray.x + systray.width) */
if(config_win_vals[0] + config_win_vals[2] <= (uint32_t) AREA_RIGHT(systray->area) + statusbar->sw->geometry.x)
{
xcb_map_window(globalconf.connection, em->win);
xcb_configure_window(globalconf.connection, em->win,
XCB_CONFIG_WINDOW_X
| XCB_CONFIG_WINDOW_Y
| XCB_CONFIG_WINDOW_WIDTH
| XCB_CONFIG_WINDOW_HEIGHT,
config_win_vals);
config_win_vals[0] += config_win_vals[2];
}
else
xcb_configure_window(globalconf.connection, em->win,
XCB_CONFIG_WINDOW_X
| XCB_CONFIG_WINDOW_Y,
config_win_vals_off);
}
break;
default:
statusbar_systray_kickout(statusbar->phys_screen);
break;
}
break;
}
}
/** Draw a statusbar.
* \param statusbar The statusbar to draw.
*/
static void
statusbar_draw(statusbar_t *statusbar)
{
statusbar->need_update = false;
if(statusbar->position)
{
widget_render(statusbar->widgets, statusbar->ctx, statusbar->sw->gc,
statusbar->sw->pixmap,
statusbar->screen, statusbar->position,
statusbar->sw->geometry.x, statusbar->sw->geometry.y,
statusbar, AWESOME_TYPE_STATUSBAR);
simplewindow_refresh_pixmap(statusbar->sw);
}
statusbar_systray_refresh(statusbar);
}
/** Get a statusbar by its window.
* \param w The window id.
* \return A statusbar if found, NULL otherwise.
*/
statusbar_t *
statusbar_getbywin(xcb_window_t w)
{
statusbar_t *s;
for(int i = 0; i < globalconf.nscreen; i++)
for(s = globalconf.screens[i].statusbar; s; s = s->next)
if(s->sw->window == w)
return s;
return NULL;
}
/** Statusbar refresh function.
*/
void
statusbar_refresh(void)
{
int screen;
statusbar_t *statusbar;
for(screen = 0; screen < globalconf.nscreen; screen++)
for(statusbar = globalconf.screens[screen].statusbar; statusbar; statusbar = statusbar->next)
if(statusbar->need_update)
statusbar_draw(statusbar);
}
static void
statusbar_clean(statusbar_t *statusbar)
{
/* Who! Check that we're not deleting a statusbar with a systray, because it
* may be its parent. If so, we reparent to root before, otherwise it will
* hurt very much. */
statusbar_systray_kickout(statusbar->phys_screen);
simplewindow_delete(&statusbar->sw);
draw_context_delete(&statusbar->ctx);
}
/** Update the statusbar position. It deletes every statusbar resources and
* create them back.
* \param statusbar The statusbar.
*/
void
statusbar_position_update(statusbar_t *statusbar)
{
statusbar_t *sb;
area_t area, wingeometry;
xcb_pixmap_t dw;
xcb_screen_t *s = NULL;
bool ignore = false;
if(statusbar->position == Off)
return statusbar_clean(statusbar);
area = screen_area_get(statusbar->screen, NULL,
&globalconf.screens[statusbar->screen].padding, true);
/* Top and Bottom statusbar_t have prio */
for(sb = globalconf.screens[statusbar->screen].statusbar; sb; sb = sb->next)
{
/* Ignore every statusbar after me that is in the same position */
if(statusbar == sb)
{
ignore = true;
continue;
}
else if(ignore && statusbar->position == sb->position)
continue;
switch(sb->position)
{
case Left:
switch(statusbar->position)
{
case Left:
area.x += statusbar->height;
break;
default:
break;
}
break;
case Right:
switch(statusbar->position)
{
case Right:
area.x -= statusbar->height;
break;
default:
break;
}
break;
case Top:
switch(statusbar->position)
{
case Top:
area.y += sb->height;
break;
case Left:
case Right:
area.height -= sb->height;
area.y += sb->height;
break;
default:
break;
}
break;
case Bottom:
switch(statusbar->position)
{
case Bottom:
area.y -= sb->height;
break;
case Left:
case Right:
area.height -= sb->height;
break;
default:
break;
}
break;
default:
break;
}
}
switch(statusbar->position)
{
case Right:
if(statusbar->width_user)
wingeometry.height = statusbar->width;
else
wingeometry.height = area.height;
wingeometry.width = statusbar->height;
switch(statusbar->align)
{
default:
wingeometry.x = area.x + area.width - wingeometry.width;
wingeometry.y = area.y;
break;
case AlignRight:
wingeometry.x = area.x + area.width - wingeometry.width;
wingeometry.y = area.y + area.height - wingeometry.height;
break;
case AlignCenter:
wingeometry.x = area.x + area.width - wingeometry.width;
wingeometry.y = (area.y + area.height - wingeometry.height) / 2;
break;
}
break;
case Left:
if(statusbar->width_user)
wingeometry.height = statusbar->width;
else
wingeometry.height = area.height;
wingeometry.width = statusbar->height;
switch(statusbar->align)
{
default:
wingeometry.x = area.x;
wingeometry.y = (area.y + area.height) - wingeometry.height;
break;
case AlignRight:
wingeometry.x = area.x;
wingeometry.y = area.y;
break;
case AlignCenter:
wingeometry.x = area.x;
wingeometry.y = (area.y + area.height - wingeometry.height) / 2;
}
break;
case Bottom:
if(statusbar->width_user)
wingeometry.width = statusbar->width;
else
wingeometry.width = area.width;
wingeometry.height = statusbar->height;
switch(statusbar->align)
{
default:
wingeometry.x = area.x;
wingeometry.y = (area.y + area.height) - wingeometry.height;
break;
case AlignRight:
wingeometry.x = area.x + area.width - wingeometry.width;
wingeometry.y = (area.y + area.height) - wingeometry.height;
break;
case AlignCenter:
wingeometry.x = area.x + (area.width - wingeometry.width) / 2;
wingeometry.y = (area.y + area.height) - wingeometry.height;
break;
}
break;
default:
if(statusbar->width_user)
wingeometry.width = statusbar->width;
else
wingeometry.width = area.width;
wingeometry.height = statusbar->height;
switch(statusbar->align)
{
default:
wingeometry.x = area.x;
wingeometry.y = area.y;
break;
case AlignRight:
wingeometry.x = area.x + area.width - wingeometry.width;
wingeometry.y = area.y;
break;
case AlignCenter:
wingeometry.x = area.x + (area.width - wingeometry.width) / 2;
wingeometry.y = area.y;
break;
}
break;
}
/* same window size and position ? */
if(!statusbar->sw
|| wingeometry.width != statusbar->sw->geometry.width
|| wingeometry.height != statusbar->sw->geometry.height)
{
statusbar_clean(statusbar);
statusbar->sw =
simplewindow_new(statusbar->phys_screen, 0, 0,
wingeometry.width, wingeometry.height, 0);
switch(statusbar->position)
{
case Right:
case Left:
statusbar->width = wingeometry.height;
s = xutil_screen_get(globalconf.connection, statusbar->phys_screen);
/* we need a new pixmap this way [ ] to render */
dw = xcb_generate_id(globalconf.connection);
xcb_create_pixmap(globalconf.connection,
s->root_depth, dw, s->root,
statusbar->width, statusbar->height);
statusbar->ctx = draw_context_new(statusbar->phys_screen,
statusbar->width,
statusbar->height,
dw,
&statusbar->colors.fg,
&statusbar->colors.bg);
break;
default:
statusbar->width = wingeometry.width;
statusbar->ctx = draw_context_new(statusbar->phys_screen,
statusbar->width,
statusbar->height,
statusbar->sw->pixmap,
&statusbar->colors.fg,
&statusbar->colors.bg);
break;
}
simplewindow_move(statusbar->sw, wingeometry.x, wingeometry.y);
xcb_map_window(globalconf.connection, statusbar->sw->window);
statusbar->need_update = true;
}
else if(wingeometry.x != statusbar->sw->geometry.x
|| wingeometry.y != statusbar->sw->geometry.y)
simplewindow_move(statusbar->sw, wingeometry.x, wingeometry.y);
/* Set need update */
globalconf.screens[statusbar->screen].need_arrange = true;
}
/** Convert a statusbar to a printable string.
* \param L The Lua VM state.
*
* \luastack
* \lvalue A statusbar.
*/
static int
luaA_statusbar_tostring(lua_State *L)
{
statusbar_t **p = luaA_checkudata(L, 1, "statusbar");
lua_pushfstring(L, "[statusbar udata(%p) name(%s)]", *p, (*p)->name);
return 1;
}
/** Create a new statusbar.
* \param L The Lua VM state.
*
* \luastack
* \lparam A table with at least a name attribute. Optionaly defined values are:
* position, align, fg, bg, width and height.
* \lreturn A brand new statusbar.
*/
static int
luaA_statusbar_new(lua_State *L)
{
statusbar_t *sb;
const char *buf;
size_t len;
xcolor_init_request_t reqs[2];
int8_t i, reqs_nbr = -1;
luaA_checktable(L, 2);
if(!(buf = luaA_getopt_string(L, 2, "name", NULL)))
luaL_error(L, "object statusbar must have a name");
sb = p_new(statusbar_t, 1);
sb->name = a_strdup(buf);
sb->colors.fg = globalconf.colors.fg;
if((buf = luaA_getopt_lstring(L, 2, "fg", NULL, &len)))
reqs[++reqs_nbr] = xcolor_init_unchecked(&sb->colors.fg, buf, len);
sb->colors.bg = globalconf.colors.bg;
if((buf = luaA_getopt_lstring(L, 2, "bg", NULL, &len)))
reqs[++reqs_nbr] = xcolor_init_unchecked(&sb->colors.bg, buf, len);
buf = luaA_getopt_lstring(L, 2, "align", "left", &len);
sb->align = draw_align_fromstr(buf, len);
sb->width = luaA_getopt_number(L, 2, "width", 0);
if(sb->width > 0)
sb->width_user = true;
sb->height = luaA_getopt_number(L, 2, "height", 0);
if(sb->height <= 0)
/* 1.5 as default factor, it fits nice but no one knows why */
sb->height = 1.5 * globalconf.font->height;
buf = luaA_getopt_lstring(L, 2, "position", "top", &len);
sb->position = position_fromstr(buf, len);
sb->screen = SCREEN_UNDEF;
for(i = 0; i <= reqs_nbr; i++)
xcolor_init_reply(reqs[i]);
return luaA_statusbar_userdata_new(L, sb);
}
/** Statusbar object.
* \param L The Lua VM state.
* \return The number of elements pushed on stack.
* \luastack
* \lfield screen Screen number.
* \lfield align The alignment.
* \lfield fg Foreground color.
* \lfield bg Background color.
* \lfield position The position.
*/
static int
luaA_statusbar_index(lua_State *L)
{
size_t len;
statusbar_t **statusbar = luaA_checkudata(L, 1, "statusbar");
const char *attr = luaL_checklstring(L, 2, &len);
if(luaA_usemetatable(L, 1, 2))
return 1;
switch(a_tokenize(attr, len))
{
case A_TK_SCREEN:
if((*statusbar)->screen == SCREEN_UNDEF)
return 0;
lua_pushnumber(L, (*statusbar)->screen + 1);
break;
case A_TK_ALIGN:
lua_pushstring(L, draw_align_tostr((*statusbar)->align));
break;
case A_TK_FG:
luaA_pushcolor(L, &(*statusbar)->colors.fg);
break;
case A_TK_BG:
luaA_pushcolor(L, &(*statusbar)->colors.bg);
break;
case A_TK_POSITION:
lua_pushstring(L, position_tostr((*statusbar)->position));
break;
default:
return 0;
}
return 1;
}
/** Get or set the statusbar widgets.
* \param L The Lua VM state.
* \return The number of elements pushed on stack.
* \luastack
* \lparam None, or a table of widgets to set.
* \lreturn The current statusbar widgets.
*/
static int
luaA_statusbar_widgets(lua_State *L)
{
statusbar_t **statusbar = luaA_checkudata(L, 1, "statusbar");
if(lua_gettop(L) == 2)
{
luaA_widget_set(L, 2, *statusbar, &(*statusbar)->widgets);
(*statusbar)->need_update = true;
(*statusbar)->mouse_over = NULL;
return 1;
}
return luaA_widget_get(L, (*statusbar)->widgets);
}
/** Remove a statubar from a screen.
* \param statusbar Statusbar to detach from screen.
*/
static void
statusbar_remove(statusbar_t *statusbar)
{
if(statusbar->screen != SCREEN_UNDEF)
{
position_t p;
statusbar_systray_kickout(statusbar->phys_screen);
/* save position */
p = statusbar->position;
statusbar->position = Off;
statusbar_position_update(statusbar);
/* restore position */
statusbar->position = p;
statusbar_list_detach(&globalconf.screens[statusbar->screen].statusbar, statusbar);
globalconf.screens[statusbar->screen].need_arrange = true;
statusbar->screen = SCREEN_UNDEF;
statusbar_unref(&statusbar);
}
}
/** Statusbar newindex.
* \param L The Lua VM state.
* \return The number of elements pushed on stack.
*/
static int
luaA_statusbar_newindex(lua_State *L)
{
size_t len;
statusbar_t *s, **statusbar = luaA_checkudata(L, 1, "statusbar");
const char *buf, *attr = luaL_checklstring(L, 2, &len);
position_t p;
int screen;
switch(a_tokenize(attr, len))
{
case A_TK_SCREEN:
if(lua_isnil(L, 3))
statusbar_remove(*statusbar);
else
{
screen = luaL_checknumber(L, 3) - 1;
luaA_checkscreen(screen);
if((*statusbar)->screen == screen)
luaL_error(L, "this statusbar is already on screen %d",
(*statusbar)->screen + 1);
/* Check for uniq name and id. */
for(s = globalconf.screens[screen].statusbar; s; s = s->next)
if(!a_strcmp(s->name, (*statusbar)->name))
luaL_error(L, "a statusbar with that name is already on screen %d\n",
screen + 1);
statusbar_remove(*statusbar);
(*statusbar)->screen = screen;
(*statusbar)->phys_screen = screen_virttophys(screen);
statusbar_list_append(&globalconf.screens[screen].statusbar, *statusbar);
statusbar_ref(statusbar);
/* All the other statusbar and ourselves need to be repositioned */
for(s = globalconf.screens[screen].statusbar; s; s = s->next)
statusbar_position_update(s);
ewmh_update_workarea((*statusbar)->phys_screen);
}
break;
case A_TK_ALIGN:
buf = luaL_checklstring(L, 3, &len);
(*statusbar)->align = draw_align_fromstr(buf, len);
statusbar_position_update(*statusbar);
break;
case A_TK_FG:
if((buf = luaL_checklstring(L, 3, &len)))
if(xcolor_init_reply(xcolor_init_unchecked(&(*statusbar)->colors.fg, buf, len)))
{
if((*statusbar)->ctx)
(*statusbar)->ctx->fg = (*statusbar)->colors.fg;
(*statusbar)->need_update = true;
}
break;
case A_TK_BG:
if((buf = luaL_checklstring(L, 3, &len)))
if(xcolor_init_reply(xcolor_init_unchecked(&(*statusbar)->colors.bg, buf, len)))
{
if((*statusbar)->ctx)
(*statusbar)->ctx->bg = (*statusbar)->colors.bg;
(*statusbar)->need_update = true;
}
break;
case A_TK_POSITION:
buf = luaL_checklstring(L, 3, &len);
p = position_fromstr(buf, len);
if(p != (*statusbar)->position)
{
(*statusbar)->position = p;
if((*statusbar)->screen != SCREEN_UNDEF)
{
for(s = globalconf.screens[(*statusbar)->screen].statusbar; s; s = s->next)
statusbar_position_update(s);
ewmh_update_workarea((*statusbar)->phys_screen);
}
}
break;
default:
return 0;
}
return 0;
}
const struct luaL_reg awesome_statusbar_methods[] =
{
{ "__call", luaA_statusbar_new },
{ NULL, NULL }
};
const struct luaL_reg awesome_statusbar_meta[] =
{
{ "widgets", luaA_statusbar_widgets },
{ "__index", luaA_statusbar_index },
{ "__newindex", luaA_statusbar_newindex },
{ "__gc", luaA_statusbar_gc },
{ "__eq", luaA_statusbar_eq },
{ "__tostring", luaA_statusbar_tostring },
{ NULL, NULL },
};
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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