391 lines
12 KiB
C
391 lines
12 KiB
C
/*
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* screen.c - screen management
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*
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* Copyright © 2007 Julien Danjou <julien@danjou.info>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <X11/extensions/Xinerama.h>
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#include "screen.h"
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#include "tag.h"
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#include "focus.h"
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#include "client.h"
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#include "layouts/floating.h"
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#include "common/util.h"
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extern AwesomeConf globalconf;
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/** Get screens info
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* \param screen Screen number
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* \param statusbar statusbar
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* \param padding Padding
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* \return Area
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*/
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Area
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get_screen_area(int screen, Statusbar *statusbar, Padding *padding)
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{
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Area area;
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Statusbar *sb;
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area = globalconf.screens[screen].geometry;
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/* make padding corrections */
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if(padding)
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{
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area.x += padding->left;
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area.y += padding->top;
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area.width -= padding->left + padding->right;
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area.height -= padding->top + padding->bottom;
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}
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for(sb = statusbar; sb; sb = sb->next)
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switch(sb->position)
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{
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case Top:
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area.y += sb->height;
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case Bottom:
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area.height -= sb->height;
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break;
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case Left:
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area.x += sb->height;
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case Right:
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area.width -= sb->height;
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break;
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case Off:
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break;
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}
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return area;
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}
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/** Get display info
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* \param screen Screen number
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* \param statusbar the statusbar
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* \param padding Padding
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* \return Area
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*/
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Area
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get_display_area(int screen, Statusbar *statusbar, Padding *padding)
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{
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Area area;
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Statusbar *sb;
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area.x = 0;
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area.y = 0;
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area.width = DisplayWidth(globalconf.display, screen);
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area.height = DisplayHeight(globalconf.display, screen);
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for(sb = statusbar; sb; sb = sb->next)
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{
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area.y += sb->position == Top ? sb->height : 0;
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area.height -= (sb->position == Top || sb->position == Bottom) ? sb->height : 0;
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}
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/* make padding corrections */
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if(padding)
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{
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area.x += padding->left;
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area.y += padding->top;
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area.width -= padding->left + padding->right;
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area.height -= padding->top + padding->bottom;
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}
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return area;
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}
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/** Return the Xinerama screen number where the coordinates belongs to
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* \param x x coordinate of the window
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* \param y y coordinate of the window
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* \return screen number or DefaultScreen of disp on no match
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*/
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int
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get_screen_bycoord(int x, int y)
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{
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int i;
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Area area;
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/* don't waste our time */
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if(!XineramaIsActive(globalconf.display))
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return DefaultScreen(globalconf.display);
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for(i = 0; i < globalconf.nscreens; i++)
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{
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area = get_screen_area(i, NULL, NULL);
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if((x < 0 || (x >= area.x && x < area.x + area.width))
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&& (y < 0 || (y >= area.y && y < area.y + area.height)))
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return i;
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}
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return DefaultScreen(globalconf.display);
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}
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static inline Area
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screen_xsi_to_area(XineramaScreenInfo si)
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{
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Area a;
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a.x = si.x_org;
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a.y = si.y_org;
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a.width = si.width;
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a.height = si.height;
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return a;
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}
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void
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screen_build_screens(void)
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{
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XineramaScreenInfo *si;
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int xinerama_screen_number, screen, screen_to_test;
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Bool drop;
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if(XineramaIsActive(globalconf.display))
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{
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si = XineramaQueryScreens(globalconf.display, &xinerama_screen_number);
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globalconf.screens = p_new(VirtScreen, xinerama_screen_number);
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globalconf.nscreens = 0;
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/* now check if screens overlaps (same x,y): if so, we take only the biggest one */
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for(screen = 0; screen < xinerama_screen_number; screen++)
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{
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drop = False;
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for(screen_to_test = 0; screen_to_test < globalconf.nscreens; screen_to_test++)
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if(si[screen].x_org == globalconf.screens[screen_to_test].geometry.x
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&& si[screen].y_org == globalconf.screens[screen_to_test].geometry.y)
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{
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/* we already have a screen for this area, just check if
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* it's not bigger and drop it */
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drop = True;
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globalconf.screens[screen_to_test].geometry.width =
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MAX(si[screen].width, si[screen_to_test].width);
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globalconf.screens[screen_to_test].geometry.height =
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MAX(si[screen].height, si[screen_to_test].height);
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}
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if(!drop)
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globalconf.screens[globalconf.nscreens++].geometry = screen_xsi_to_area(si[screen]);
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}
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printf("nscreens %d\n", globalconf.nscreens);
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for(screen = 0; screen < globalconf.nscreens; screen++)
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printf("x %d y %d w %d h %d\n",
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globalconf.screens[screen].geometry.x,
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globalconf.screens[screen].geometry.y,
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globalconf.screens[screen].geometry.width,
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globalconf.screens[screen].geometry.height);
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/* XXX realloc smaller if xinerama_screen_number != screen registered */
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XFree(si);
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}
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else
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{
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globalconf.nscreens = ScreenCount(globalconf.display);
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globalconf.screens = p_new(VirtScreen, globalconf.nscreens);
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for(screen = 0; screen < globalconf.nscreens; screen++)
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{
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globalconf.screens[screen].geometry.x = 0;
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globalconf.screens[screen].geometry.y = 0;
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globalconf.screens[screen].geometry.width =
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DisplayWidth(globalconf.display, screen);
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globalconf.screens[screen].geometry.height =
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DisplayHeight(globalconf.display, screen);
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}
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}
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}
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/** This returns the real X screen number for a logical
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* screen if Xinerama is active.
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* \param screen the logical screen
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* \return the X screen
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*/
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int
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get_phys_screen(int screen)
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{
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if(XineramaIsActive(globalconf.display))
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return DefaultScreen(globalconf.display);
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return screen;
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}
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/** Move a client to a virtual screen
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* \param c the client
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* \param new_screen The destinatiuon screen
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* \param doresize set to True if we also move the client to the new x and
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* y of the new screen
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*/
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void
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move_client_to_screen(Client *c, int new_screen, Bool doresize)
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{
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Tag *tag;
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int old_screen = c->screen;
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Area from, to;
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for(tag = globalconf.screens[old_screen].tags; tag; tag = tag->next)
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untag_client(c, tag);
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c->screen = new_screen;
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/* tag client with new screen tags */
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tag_client_with_current_selected(c);
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/* resize the windows if it's floating */
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if(doresize && old_screen != c->screen)
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{
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Area new_geometry, new_f_geometry;
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new_f_geometry = c->f_geometry;
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to = get_screen_area(c->screen, NULL, NULL);
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from = get_screen_area(old_screen, NULL, NULL);
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/* compute new coords in new screen */
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new_f_geometry.x = (c->f_geometry.x - from.x) + to.x;
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new_f_geometry.y = (c->f_geometry.y - from.y) + to.y;
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/* check that new coords are still in the screen */
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if(new_f_geometry.width > to.width)
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new_f_geometry.width = to.width;
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if(new_f_geometry.height > to.height)
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new_f_geometry.height = to.height;
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if(new_f_geometry.x + new_f_geometry.width >= to.x + to.width)
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new_f_geometry.x = to.x + to.width - new_f_geometry.width - 2 * c->border;
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if(new_f_geometry.y + new_f_geometry.height >= to.y + to.height)
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new_f_geometry.y = to.y + to.height - new_f_geometry.height - 2 * c->border;
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if(c->ismax)
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{
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new_geometry = c->geometry;
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/* compute new coords in new screen */
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new_geometry.x = (c->geometry.x - from.x) + to.x;
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new_geometry.y = (c->geometry.y - from.y) + to.y;
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/* check that new coords are still in the screen */
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if(new_geometry.width > to.width)
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new_geometry.width = to.width;
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if(new_geometry.height > to.height)
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new_geometry.height = to.height;
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if(new_geometry.x + new_geometry.width >= to.x + to.width)
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new_geometry.x = to.x + to.width - new_geometry.width - 2 * c->border;
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if(new_geometry.y + new_geometry.height >= to.y + to.height)
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new_geometry.y = to.y + to.height - new_geometry.height - 2 * c->border;
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/* compute new coords for max in new screen */
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c->m_geometry.x = (c->m_geometry.x - from.x) + to.x;
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c->m_geometry.y = (c->m_geometry.y - from.y) + to.y;
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/* check that new coords are still in the screen */
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if(c->m_geometry.width > to.width)
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c->m_geometry.width = to.width;
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if(c->m_geometry.height > to.height)
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c->m_geometry.height = to.height;
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if(c->m_geometry.x + c->m_geometry.width >= to.x + to.width)
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c->m_geometry.x = to.x + to.width - c->m_geometry.width - 2 * c->border;
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if(c->m_geometry.y + c->m_geometry.height >= to.y + to.height)
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c->m_geometry.y = to.y + to.height - c->m_geometry.height - 2 * c->border;
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client_resize(c, new_geometry, False);
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}
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/* if floating, move to this new coords */
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else if(c->isfloating)
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client_resize(c, new_f_geometry, False);
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/* otherwise just register them */
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else
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{
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c->f_geometry = new_f_geometry;
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globalconf.screens[old_screen].need_arrange = True;
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globalconf.screens[c->screen].need_arrange = True;
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}
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}
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}
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/** Move mouse pointer to x_org and y_xorg of specified screen
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* \param screen screen number
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*/
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static void
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move_mouse_pointer_to_screen(int screen)
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{
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if(XineramaIsActive(globalconf.display))
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{
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Area area = get_screen_area(screen, NULL, NULL);
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XWarpPointer(globalconf.display,
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None,
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DefaultRootWindow(globalconf.display),
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0, 0, 0, 0, area.x, area.y);
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}
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else
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XWarpPointer(globalconf.display,
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None,
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RootWindow(globalconf.display, screen),
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0, 0, 0, 0, 0, 0);
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}
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/** Switch focus to a specified screen
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* \param screen Screen ID
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* \param arg screen number
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* \ingroup ui_callback
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*/
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void
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uicb_screen_focus(int screen, char *arg)
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{
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int new_screen;
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if(arg)
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new_screen = compute_new_value_from_arg(arg, screen);
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else
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new_screen = screen + 1;
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if (new_screen < 0)
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new_screen = globalconf.nscreens - 1;
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if (new_screen > (globalconf.nscreens - 1))
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new_screen = 0;
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focus(focus_get_current_client(new_screen), True, new_screen);
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move_mouse_pointer_to_screen(new_screen);
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}
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/** Move client to a virtual screen (if Xinerama is active)
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* \param screen Screen ID
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* \param arg screen number
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* \ingroup ui_callback
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*/
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void
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uicb_client_movetoscreen(int screen __attribute__ ((unused)), char *arg)
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{
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int new_screen, prev_screen;
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Client *sel = globalconf.focus->client;
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if(!sel || !XineramaIsActive(globalconf.display))
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return;
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if(arg)
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new_screen = compute_new_value_from_arg(arg, sel->screen);
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else
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new_screen = sel->screen + 1;
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if(new_screen >= globalconf.nscreens)
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new_screen = 0;
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else if(new_screen < 0)
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new_screen = globalconf.nscreens - 1;
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prev_screen = sel->screen;
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move_client_to_screen(sel, new_screen, True);
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move_mouse_pointer_to_screen(new_screen);
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focus(sel, True, sel->screen);
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}
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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