titlebar.h

   1 /*
   2  * titlebar.h - titlebar management header
   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 #ifndef AWESOME_TITLEBAR_H
  23 #define AWESOME_TITLEBAR_H
  24
  25 #include "wibox.h"
  26
  27 client_t * client_getbytitlebar(wibox_t *);
  28 client_t * client_getbytitlebarwin(xcb_window_t);
  29 void titlebar_geometry_compute(client_t *, area_t, area_t *);
  30 void titlebar_init(client_t *);
  31 void titlebar_client_detach(client_t *);
  32 void titlebar_client_attach(client_t *, wibox_t *);
  33 void titlebar_set_visible(wibox_t *, bool);
  34 void titlebar_ban(wibox_t *);
  35
  36 int luaA_titlebar_newindex(lua_State *, wibox_t *, awesome_token_t);
  37
  38 /** Add the titlebar geometry and border to a geometry.
  39  * \param t The titlebar
  40  * \param border The client border size.
  41  * \param geometry The geometry
  42  * \return A new geometry bigger if the titlebar is visible.
  43  */
  44 static inline area_t
  45 titlebar_geometry_add(wibox_t *t, int border, area_t geometry)
  46 {
  47     /* We need to add titlebar border to the total width and height.
  48      * This can then be substracted/added to the witdh/height/x/y.
  49      * In this case the border is included, because it belongs to a different window.
  50      */
  51     if(t)
  52         switch(t->position)
  53         {
  54           case Top:
  55             geometry.y -= t->sw.geometry.height;
  56             geometry.height += t->sw.geometry.height;
  57             break;
  58           case Bottom:
  59             geometry.height += t->sw.geometry.height;
  60             break;
  61           case Left:
  62             geometry.x -= t->sw.geometry.width;
  63             geometry.width += t->sw.geometry.width;
  64             break;
  65           case Right:
  66             geometry.width += t->sw.geometry.width;
  67             break;
  68           default:
  69             break;
  70         }
  71
  72     /* Adding a border to a client only changes width and height, x and y are including border. */
  73     geometry.width += 2 * border;
  74     geometry.height += 2 * border;
  75
  76     return geometry;
  77 }
  78
  79 /** Remove the titlebar geometry and border width to a geometry.
  80  * \param t The titlebar.
  81  * \param border The client border size.
  82  * \param geometry The geometry.
  83  * \return A new geometry smaller if the titlebar is visible.
  84  */
  85 static inline area_t
  86 titlebar_geometry_remove(wibox_t *t, int border, area_t geometry)
  87 {
  88     /* We need to add titlebar border to the total width and height.
  89      * This can then be substracted/added to the witdh/height/x/y.
  90      * In this case the border is included, because it belongs to a different window.
  91      */
  92     if(t)
  93         switch(t->position)
  94         {
  95           case Top:
  96             geometry.y += t->sw.geometry.height;
  97             unsigned_subtract(geometry.height, t->sw.geometry.height);
  98             break;
  99           case Bottom:
 100             unsigned_subtract(geometry.height, t->sw.geometry.height);
 101             break;
 102           case Left:
 103             geometry.x += t->sw.geometry.width;
 104             unsigned_subtract(geometry.width, t->sw.geometry.width);
 105             break;
 106           case Right:
 107             unsigned_subtract(geometry.width, t->sw.geometry.width);
 108             break;
 109           default:
 110             break;
 111         }
 112
 113     /* Adding a border to a client only changes width and height, x and y are including border. */
 114     unsigned_subtract(geometry.width, 2*border);
 115     unsigned_subtract(geometry.height, 2*border);
 116
 117     return geometry;
 118 }
 119
 120 /** Update the titlebar geometry for a client.
 121  * \param c The client.
 122  */
 123 static inline void
 124 titlebar_update_geometry(client_t *c)
 125 {
 126     area_t geom;
 127
 128     if(!c->titlebar)
 129         return;
 130
 131     /* Client geometry without titlebar, but including borders, since that is always consistent. */
 132     titlebar_geometry_compute(c, titlebar_geometry_remove(c->titlebar, 0, c->geometry), &geom);
 133     wibox_moveresize(c->titlebar, geom);
 134
 135     /* If the client is banned, move the titlebar out! */
 136     if(c->isbanned)
 137         titlebar_ban(c->titlebar);
 138 }
 139
 140 #endif
 141 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80