titlebar.c

   1 /*
   2  * titlebar.c - titlebar 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 <xcb/xcb.h>
  23
  24 #include "titlebar.h"
  25 #include "client.h"
  26 #include "widget.h"
  27 #include "wibox.h"
  28 #include "screen.h"
  29
  30 extern awesome_t globalconf;
  31
  32 /** Get a client by its titlebar.
  33  * \param titlebar The titlebar.
  34  * \return A client.
  35  */
  36 client_t *
  37 client_getbytitlebar(wibox_t *titlebar)
  38 {
  39     client_t *c;
  40
  41     for(c = globalconf.clients; c; c = c->next)
  42         if(c->titlebar == titlebar)
  43             return c;
  44
  45     return NULL;
  46 }
  47
  48 /** Get a client by its titlebar window.
  49  * \param win The window.
  50  * \return A client.
  51  */
  52 client_t *
  53 client_getbytitlebarwin(xcb_window_t win)
  54 {
  55     client_t *c;
  56
  57     for(c = globalconf.clients; c; c = c->next)
  58         if(c->titlebar && c->titlebar->sw.window == win)
  59             return c;
  60
  61     return NULL;
  62 }
  63
  64 void
  65 titlebar_geometry_compute(client_t *c, area_t geometry, area_t *res)
  66 {
  67     int width, x_offset = 0, y_offset = 0;
  68
  69     switch(c->titlebar->position)
  70     {
  71       default:
  72         return;
  73       case Top:
  74         width = MAX(1, geometry.width + 2 * c->border - 2 * c->titlebar->sw.border.width);
  75         switch(c->titlebar->align)
  76         {
  77           default:
  78             break;
  79           case AlignRight:
  80             x_offset = 2 * c->border + geometry.width - width - 2 * c->titlebar->sw.border.width;
  81             break;
  82           case AlignCenter:
  83             x_offset = (geometry.width - width) / 2;
  84             break;
  85         }
  86         res->x = geometry.x + x_offset;
  87         res->y = geometry.y - c->titlebar->sw.geometry.height - 2 * c->titlebar->sw.border.width + c->border;
  88         res->width = width;
  89         res->height = c->titlebar->sw.geometry.height;
  90         break;
  91       case Bottom:
  92         width = MAX(1, geometry.width + 2 * c->border - 2 * c->titlebar->sw.border.width);
  93         switch(c->titlebar->align)
  94         {
  95           default:
  96             break;
  97           case AlignRight:
  98             x_offset = 2 * c->border + geometry.width - width - 2 * c->titlebar->sw.border.width;
  99             break;
 100           case AlignCenter:
 101             x_offset = (geometry.width - width) / 2;
 102             break;
 103         }
 104         res->x = geometry.x + x_offset;
 105         res->y = geometry.y + geometry.height + c->border;
 106         res->width = width;
 107         res->height = c->titlebar->sw.geometry.height;
 108         break;
 109       case Left:
 110         width = MAX(1, geometry.height + 2 * c->border - 2 * c->titlebar->sw.border.width);
 111         switch(c->titlebar->align)
 112         {
 113           default:
 114             break;
 115           case AlignRight:
 116             y_offset = 2 * c->border + geometry.height - width - 2 * c->titlebar->sw.border.width;
 117             break;
 118           case AlignCenter:
 119             y_offset = (geometry.height - width) / 2;
 120             break;
 121         }
 122         res->x = geometry.x - c->titlebar->sw.geometry.width + c->border;
 123         res->y = geometry.y + y_offset;
 124         res->width = c->titlebar->sw.geometry.width;
 125         res->height = width;
 126         break;
 127       case Right:
 128         width = MAX(1, geometry.height + 2 * c->border - 2 * c->titlebar->sw.border.width);
 129         switch(c->titlebar->align)
 130         {
 131           default:
 132             break;
 133           case AlignRight:
 134             y_offset = 2 * c->border + geometry.height - width - 2 * c->titlebar->sw.border.width;
 135             break;
 136           case AlignCenter:
 137             y_offset = (geometry.height - width) / 2;
 138             break;
 139         }
 140         res->x = geometry.x + geometry.width + c->border;
 141         res->y = geometry.y + y_offset;
 142         res->width = c->titlebar->sw.geometry.width;
 143         res->height = width;
 144         break;
 145     }
 146 }
 147
 148 /** Detach a wibox titlebar from its client.
 149  * \param c The client.
 150  */
 151 void
 152 titlebar_client_detach(client_t *c)
 153 {
 154     /* If client has a titlebar, kick it out. */
 155     if(c && c->titlebar)
 156     {
 157         simplewindow_wipe(&c->titlebar->sw);
 158         c->titlebar->type = WIBOX_TYPE_NORMAL;
 159         c->titlebar->screen = SCREEN_UNDEF;
 160         wibox_unref(&c->titlebar);
 161         c->titlebar = NULL;
 162         client_need_arrange(c);
 163         client_stack();
 164     }
 165 }
 166
 167 /** Attach a wibox to a client as its titlebar.
 168  * \param c The client.
 169  * \param t The wibox/titlebar.
 170  */
 171 void
 172 titlebar_client_attach(client_t *c, wibox_t *t)
 173 {
 174     titlebar_client_detach(c);
 175
 176     if(c && t)
 177     {
 178         area_t wingeom;
 179
 180         /* check if titlebar is already on a client */
 181         titlebar_client_detach(client_getbytitlebar(t));
 182
 183         c->titlebar = wibox_ref(&t);
 184         t->type = WIBOX_TYPE_TITLEBAR;
 185         t->screen = c->screen;
 186
 187         switch(t->position)
 188         {
 189           case Floating:
 190             t->position = Top;
 191           case Top:
 192           case Bottom:
 193             if(!t->sw.geometry.height)
 194                 t->sw.geometry.height = 1.5 * globalconf.font->height;
 195             break;
 196           case Left:
 197           case Right:
 198             if(!t->sw.geometry.width)
 199                 t->sw.geometry.width = 1.5 * globalconf.font->height;
 200             break;
 201         }
 202
 203         titlebar_geometry_compute(c, c->geometry, &wingeom);
 204
 205         simplewindow_init(&t->sw, c->phys_screen,
 206                           wingeom, 0, t->sw.orientation,
 207                           &t->sw.ctx.fg, &t->sw.ctx.bg);
 208         simplewindow_border_color_set(&t->sw, &t->sw.border.color);
 209
 210         t->need_update = true;
 211
 212         /* This may seem useless, but it's the cleanest way to avoid seeing titlebars for banned clients. */
 213         titlebar_update_geometry(c);
 214
 215         if(t->isvisible)
 216             xcb_map_window(globalconf.connection, t->sw.window);
 217
 218         client_need_arrange(c);
 219         client_stack();
 220     }
 221 }
 222
 223 /** Map or unmap a titlebar wibox.
 224  * \param t The wibox/titlebar.
 225  * \param visible The new state of the titlebar.
 226  */
 227 void
 228 titlebar_set_visible(wibox_t *t, bool visible)
 229 {
 230     if (visible != t->isvisible)
 231     {
 232         /* The price of (un)mapping something small like a titlebar is pretty cheap.
 233          * It would complicate matters if this rare case was treated like clients.
 234          * Clients are moved out of the viewport when banned.
 235          */
 236         if ((t->isvisible = visible))
 237             xcb_map_window(globalconf.connection, t->sw.window);
 238         else
 239             xcb_unmap_window(globalconf.connection, t->sw.window);
 240
 241         globalconf.screens[t->screen].need_arrange = true;
 242         client_stack();
 243     }
 244 }
 245
 246 /** Titlebar newindex.
 247  * \param L The Lua VM state.
 248  * \param titlebar The wibox titlebar.
 249  * \param tok The attribute token.
 250  * \return The number of elements pushed on stack.
 251  */
 252 int
 253 luaA_titlebar_newindex(lua_State *L, wibox_t *titlebar, awesome_token_t tok)
 254 {
 255     client_t *c = NULL;
 256
 257     switch(tok)
 258     {
 259         position_t position;
 260         int i;
 261         size_t len;
 262         const char *buf;
 263
 264       case A_TK_ALIGN:
 265         if((buf = luaL_checklstring(L, 3, &len)))
 266             titlebar->align = draw_align_fromstr(buf, len);
 267         else
 268             return 0;
 269         break;
 270       case A_TK_BORDER_WIDTH:
 271         if((i = luaL_checknumber(L, 3)) >= 0)
 272             simplewindow_border_width_set(&titlebar->sw, i);
 273         else
 274             return 0;
 275         break;
 276       case A_TK_BORDER_COLOR:
 277         if((buf = luaL_checklstring(L, 3, &len)))
 278             if(xcolor_init_reply(xcolor_init_unchecked(&titlebar->sw.border.color, buf, len)))
 279                 simplewindow_border_color_set(&titlebar->sw, &titlebar->sw.border.color);
 280         return 0;
 281       case A_TK_POSITION:
 282         buf = luaL_checklstring(L, 3, &len);
 283         position = position_fromstr(buf, len);
 284         if(position != titlebar->position)
 285         {
 286             switch(position)
 287             {
 288               case Left:
 289                 switch(titlebar->position)
 290                 {
 291                     int tmp;
 292                   case Left:
 293                   case Right:
 294                     break;
 295                   case Top:
 296                   case Bottom:
 297                   case Floating:
 298                     tmp = titlebar->sw.geometry.width;
 299                     titlebar->sw.geometry.width = titlebar->sw.geometry.height;
 300                     titlebar->sw.geometry.height = tmp;
 301                     break;
 302                 }
 303                 simplewindow_orientation_set(&titlebar->sw, North);
 304                 break;
 305               case Right:
 306                 switch(titlebar->position)
 307                 {
 308                     int tmp;
 309                   case Left:
 310                   case Right:
 311                     break;
 312                   case Top:
 313                   case Bottom:
 314                   case Floating:
 315                     tmp = titlebar->sw.geometry.width;
 316                     titlebar->sw.geometry.width = titlebar->sw.geometry.height;
 317                     titlebar->sw.geometry.height = tmp;
 318                     break;
 319                 }
 320                 simplewindow_orientation_set(&titlebar->sw, South);
 321                 break;
 322               case Top:
 323               case Bottom:
 324               case Floating:
 325                 switch(titlebar->position)
 326                 {
 327                     int tmp;
 328                   case Left:
 329                   case Right:
 330                     tmp = titlebar->sw.geometry.width;
 331                     titlebar->sw.geometry.width = titlebar->sw.geometry.height;
 332                     titlebar->sw.geometry.height = tmp;
 333                     break;
 334                   case Top:
 335                   case Bottom:
 336                   case Floating:
 337                     break;
 338                 }
 339                 simplewindow_orientation_set(&titlebar->sw, East);
 340                 break;
 341             }
 342             titlebar->position = position;
 343             if((c = client_getbytitlebar(titlebar)))
 344             {
 345                 titlebar_update_geometry(c);
 346                 /* call geometry hook for client because some like to
 347                  * set titlebar width in that hook, which make sense */
 348                 hooks_property(c, "geometry");
 349             }
 350         }
 351         break;
 352       default:
 353         return 0;
 354     }
 355
 356     if((c || (c = client_getbytitlebar(titlebar))))
 357         client_need_arrange(c);
 358
 359     return 0;
 360 }
 361
 362 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80