placement.c

   1 /*
   2  * placement.c - client placement management
   3  *
   4  * Copyright © 2008 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include "placement.h"
  23 #include "screen.h"
  24 #include "client.h"
  25 #include "titlebar.h"
  26
  27 extern AwesomeConf globalconf;
  28
  29 name_func_link_t FloatingPlacementList[] =
  30 {
  31     { "smart", placement_smart },
  32     { "under_mouse", placement_under_mouse },
  33     { NULL, NULL }
  34 };
  35
  36 static area_t
  37 placement_fix_offscreen(area_t geometry, int screen, int border)
  38 {
  39     area_t screen_geometry;
  40
  41     screen_geometry = screen_get_area(screen,
  42                                       globalconf.screens[screen].statusbar,
  43                                       &globalconf.screens[screen].padding);
  44
  45     /* fix offscreen */
  46     if(AREA_RIGHT(geometry) > AREA_RIGHT(screen_geometry))
  47         geometry.x = screen_geometry.x + screen_geometry.width - (geometry.width + 2 * border);
  48     else if(AREA_LEFT(geometry) < AREA_LEFT(screen_geometry))
  49         geometry.x = screen_geometry.x;
  50
  51     if(AREA_BOTTOM(geometry) > AREA_BOTTOM(screen_geometry))
  52         geometry.y = screen_geometry.y + screen_geometry.height - (geometry.height + 2 * border);
  53     else if(AREA_TOP(geometry) < AREA_TOP(screen_geometry))
  54         geometry.y = screen_geometry.y;
  55
  56     return geometry;
  57 }
  58
  59 /** Compute smart coordinates for a client window
  60  * \param geometry current/requested client geometry
  61  * \param screen screen used
  62  * \return new geometry
  63  */
  64 area_t
  65 placement_smart(Client *c)
  66 {
  67     Client *client;
  68     area_t newgeometry = { 0, 0, 0, 0, NULL, NULL };
  69     area_t *screen_geometry, *arealist = NULL, *r;
  70     Bool found = False;
  71
  72     screen_geometry = p_new(area_t, 1);
  73
  74     *screen_geometry = screen_get_area(c->screen,
  75                                        globalconf.screens[c->screen].statusbar,
  76                                        &globalconf.screens[c->screen].padding);
  77
  78     area_list_push(&arealist, screen_geometry);
  79
  80     for(client = globalconf.clients; client; client = client->next)
  81         if(client_isvisible(client, c->screen))
  82         {
  83             newgeometry = client->f_geometry;
  84             newgeometry.width += 2 * client->border;
  85             newgeometry.height += 2 * client->border;
  86             newgeometry = titlebar_geometry_add(&client->titlebar, newgeometry);
  87             area_list_remove(&arealist, &newgeometry);
  88         }
  89
  90     newgeometry.x = c->f_geometry.x;
  91     newgeometry.y = c->f_geometry.y;
  92     newgeometry.width = 0;
  93     newgeometry.height = 0;
  94
  95     for(r = arealist; r; r = r->next)
  96         if(r->width >= c->f_geometry.width && r->height >= c->f_geometry.height
  97            && r->width * r->height > newgeometry.width * newgeometry.height)
  98         {
  99             found = True;
 100             newgeometry = *r;
 101         }
 102
 103     /* we did not found a space with enough space for our size:
 104      * just take the biggest available and go in */
 105     if(!found)
 106         for(r = arealist; r; r = r->next)
 107            if(r->width * r->height > newgeometry.width * newgeometry.height)
 108                newgeometry = *r;
 109
 110     /* restore height and width */
 111     newgeometry.width = c->f_geometry.width;
 112     newgeometry.height = c->f_geometry.height;
 113
 114     newgeometry = titlebar_geometry_add(&c->titlebar, newgeometry);
 115     newgeometry = placement_fix_offscreen(newgeometry, c->screen, c->border);
 116     newgeometry = titlebar_geometry_remove(&c->titlebar, newgeometry);
 117
 118     area_list_wipe(&arealist);
 119
 120     return newgeometry;
 121 }
 122
 123 area_t
 124 placement_under_mouse(Client *c)
 125 {
 126     Window dummy;
 127     unsigned int m;
 128     int x, y, d;
 129     area_t finalgeometry = c->f_geometry;
 130
 131     if(XQueryPointer(globalconf.display, RootWindow(globalconf.display, c->phys_screen),
 132                      &dummy, &dummy, &x, &y, &d, &d, &m))
 133     {
 134         finalgeometry.x = x - c->f_geometry.width / 2;
 135         finalgeometry.y = y - c->f_geometry.height / 2;
 136     }
 137
 138     finalgeometry = titlebar_geometry_add(&c->titlebar, finalgeometry);
 139     finalgeometry = placement_fix_offscreen(finalgeometry, c->screen, c->border);
 140     finalgeometry = titlebar_geometry_remove(&c->titlebar, finalgeometry);
 141
 142     return finalgeometry;
 143 }
 144 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80