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awesome/screen.c

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/*
* screen.c - screen management
*
* 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 "screen.h"
#include "tag.h"
#include "focus.h"
#include "client.h"
#include "layouts/floating.h"
extern AwesomeConf globalconf;
/** Get screens info
* \param screen Screen number
* \param statusbar statusbar
* \param padding Padding
* \return area_t
*/
area_t
screen_get_area(int screen, Statusbar *statusbar, Padding *padding)
{
area_t area = globalconf.screens_info->geometry[screen];
Statusbar *sb;
/* make padding corrections */
if(padding)
{
area.x += padding->left;
area.y += padding->top;
area.width -= padding->left + padding->right;
area.height -= padding->top + padding->bottom;
}
for(sb = statusbar; sb; sb = sb->next)
switch(sb->position)
{
case Top:
area.y += sb->height;
case Bottom:
area.height -= sb->height;
break;
case Left:
area.x += sb->height;
case Right:
area.width -= sb->height;
break;
default:
break;
}
return area;
}
/** Get display info
* \param screen Screen number
* \param statusbar the statusbar
* \param padding Padding
* \return area_t
*/
area_t
get_display_area(int screen, Statusbar *statusbar, Padding *padding)
{
area_t area = { 0, 0, 0, 0, NULL, NULL };
Statusbar *sb;
area.width = DisplayWidth(globalconf.display, screen);
area.height = DisplayHeight(globalconf.display, screen);
for(sb = statusbar; sb; sb = sb->next)
{
area.y += sb->position == Top ? sb->height : 0;
area.height -= (sb->position == Top || sb->position == Bottom) ? sb->height : 0;
}
/* make padding corrections */
if(padding)
{
area.x += padding->left;
area.y += padding->top;
area.width -= padding->left + padding->right;
area.height -= padding->top + padding->bottom;
}
return area;
}
/** This returns the real X screen number for a logical
* screen if Xinerama is active.
* \param screen the logical screen
* \return the X screen
*/
int
screen_virttophys(int screen)
{
if(globalconf.screens_info->xinerama_is_active)
return DefaultScreen(globalconf.display);
return screen;
}
/** Move a client to a virtual screen
* \param c the client
* \param new_screen The destinatiuon screen
* \param doresize set to True if we also move the client to the new x and
* y of the new screen
*/
void
move_client_to_screen(Client *c, int new_screen, Bool doresize)
{
Tag *tag;
int old_screen = c->screen;
area_t from, to;
for(tag = globalconf.screens[old_screen].tags; tag; tag = tag->next)
untag_client(c, tag);
c->screen = new_screen;
/* tag client with new screen tags */
tag_client_with_current_selected(c);
/* resize the windows if it's floating */
if(doresize && old_screen != c->screen)
{
area_t new_geometry, new_f_geometry;
new_f_geometry = c->f_geometry;
to = screen_get_area(c->screen, NULL, NULL);
from = screen_get_area(old_screen, NULL, NULL);
/* compute new coords in new screen */
new_f_geometry.x = (c->f_geometry.x - from.x) + to.x;
new_f_geometry.y = (c->f_geometry.y - from.y) + to.y;
/* check that new coords are still in the screen */
if(new_f_geometry.width > to.width)
new_f_geometry.width = to.width;
if(new_f_geometry.height > to.height)
new_f_geometry.height = to.height;
if(new_f_geometry.x + new_f_geometry.width >= to.x + to.width)
new_f_geometry.x = to.x + to.width - new_f_geometry.width - 2 * c->border;
if(new_f_geometry.y + new_f_geometry.height >= to.y + to.height)
new_f_geometry.y = to.y + to.height - new_f_geometry.height - 2 * c->border;
if(c->ismax)
{
new_geometry = c->geometry;
/* compute new coords in new screen */
new_geometry.x = (c->geometry.x - from.x) + to.x;
new_geometry.y = (c->geometry.y - from.y) + to.y;
/* check that new coords are still in the screen */
if(new_geometry.width > to.width)
new_geometry.width = to.width;
if(new_geometry.height > to.height)
new_geometry.height = to.height;
if(new_geometry.x + new_geometry.width >= to.x + to.width)
new_geometry.x = to.x + to.width - new_geometry.width - 2 * c->border;
if(new_geometry.y + new_geometry.height >= to.y + to.height)
new_geometry.y = to.y + to.height - new_geometry.height - 2 * c->border;
/* compute new coords for max in new screen */
c->m_geometry.x = (c->m_geometry.x - from.x) + to.x;
c->m_geometry.y = (c->m_geometry.y - from.y) + to.y;
/* check that new coords are still in the screen */
if(c->m_geometry.width > to.width)
c->m_geometry.width = to.width;
if(c->m_geometry.height > to.height)
c->m_geometry.height = to.height;
if(c->m_geometry.x + c->m_geometry.width >= to.x + to.width)
c->m_geometry.x = to.x + to.width - c->m_geometry.width - 2 * c->border;
if(c->m_geometry.y + c->m_geometry.height >= to.y + to.height)
c->m_geometry.y = to.y + to.height - c->m_geometry.height - 2 * c->border;
client_resize(c, new_geometry, False);
}
/* if floating, move to this new coords */
else if(c->isfloating)
client_resize(c, new_f_geometry, False);
/* otherwise just register them */
else
{
c->f_geometry = new_f_geometry;
globalconf.screens[old_screen].need_arrange = True;
globalconf.screens[c->screen].need_arrange = True;
}
}
}
/** Move mouse pointer to x_org and y_xorg of specified screen
* \param screen screen number
*/
static void
move_mouse_pointer_to_screen(int phys_screen)
{
if(globalconf.screens_info->xinerama_is_active)
{
area_t area = screen_get_area(phys_screen, NULL, NULL);
XWarpPointer(globalconf.display,
None,
DefaultRootWindow(globalconf.display),
0, 0, 0, 0, area.x, area.y);
}
else
XWarpPointer(globalconf.display,
None,
RootWindow(globalconf.display, phys_screen),
0, 0, 0, 0, 0, 0);
}
/** Switch focus to a specified screen.
* Argument must be an absolute or relative screen number.
* \param screen Screen ID
* \param arg screen number
* \ingroup ui_callback
*/
void
uicb_screen_focus(int screen, char *arg)
{
int new_screen;
if(arg)
new_screen = compute_new_value_from_arg(arg, screen);
else
new_screen = screen + 1;
if (new_screen < 0)
new_screen = globalconf.screens_info->nscreen - 1;
if (new_screen > (globalconf.screens_info->nscreen - 1))
new_screen = 0;
client_focus(NULL, new_screen, True);
move_mouse_pointer_to_screen(new_screen);
}
/** Move client to a screen.
* Argument must be an absolute or relative screen number.
* \param screen Screen ID
* \param arg screen number
* \ingroup ui_callback
*/
void
uicb_client_movetoscreen(int screen __attribute__ ((unused)), char *arg)
{
int new_screen, prev_screen;
Client *sel = globalconf.focus->client;
if(!sel || !globalconf.screens_info->xinerama_is_active)
return;
if(arg)
new_screen = compute_new_value_from_arg(arg, sel->screen);
else
new_screen = sel->screen + 1;
if(new_screen >= globalconf.screens_info->nscreen)
new_screen = 0;
else if(new_screen < 0)
new_screen = globalconf.screens_info->nscreen - 1;
prev_screen = sel->screen;
move_client_to_screen(sel, new_screen, True);
move_mouse_pointer_to_screen(new_screen);
client_focus(sel, sel->screen, True);
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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