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 /** Create a new titlebar (DEPRECATED).
 149  * \param L The Lua VM state.
 150  * \return The number of value pushed.
 151  *
 152  * \luastack
 153  * \lparam A table with values: align, position, fg, bg, border_width,
 154  * border_color, width and height.
 155  * \lreturn A brand new titlebar.
 156  */
 157 static int
 158 luaA_titlebar_new(lua_State *L)
 159 {
 160     deprecate(L);
 161
 162     return luaA_wibox_new(L);
 163 }
 164
 165 /** Detach a wibox titlebar from its client.
 166  * \param c The client.
 167  */
 168 void
 169 titlebar_client_detach(client_t *c)
 170 {
 171     /* If client has a titlebar, kick it out. */
 172     if(c && c->titlebar)
 173     {
 174         wibox_unref(&c->titlebar);
 175         simplewindow_wipe(&c->titlebar->sw);
 176         c->titlebar->type = WIBOX_TYPE_NORMAL;
 177         c->titlebar->screen = SCREEN_UNDEF;
 178         c->titlebar = NULL;
 179         client_need_arrange(c);
 180         client_stack();
 181     }
 182 }
 183
 184 /** Attach a wibox to a client as its titlebar.
 185  * \param c The client.
 186  * \param t The wibox/titlebar.
 187  */
 188 void
 189 titlebar_client_attach(client_t *c, wibox_t *t)
 190 {
 191     titlebar_client_detach(c);
 192
 193     if(c && t)
 194     {
 195         area_t wingeom;
 196
 197         /* check if titlebar is already on a client */
 198         titlebar_client_detach(client_getbytitlebar(t));
 199
 200         c->titlebar = wibox_ref(&t);
 201         t->type = WIBOX_TYPE_TITLEBAR;
 202         t->screen = c->screen;
 203
 204         switch(t->position)
 205         {
 206           case Floating:
 207             t->position = Top;
 208           case Top:
 209           case Bottom:
 210             if(!t->sw.geometry.height)
 211                 t->sw.geometry.height = 1.5 * globalconf.font->height;
 212             break;
 213           case Left:
 214           case Right:
 215             if(!t->sw.geometry.width)
 216                 t->sw.geometry.width = 1.5 * globalconf.font->height;
 217             break;
 218         }
 219
 220
 221         titlebar_geometry_compute(c, c->geometry, &wingeom);
 222
 223         simplewindow_init(&t->sw, c->phys_screen,
 224                           wingeom, 0, t->sw.orientation,
 225                           &t->sw.ctx.fg, &t->sw.ctx.bg);
 226         simplewindow_border_color_set(&t->sw, &t->sw.border.color);
 227
 228         t->need_update = true;
 229
 230         if(t->isvisible)
 231             xcb_map_window(globalconf.connection, t->sw.window);
 232
 233         client_need_arrange(c);
 234         client_stack();
 235     }
 236 }
 237
 238 /** Titlebar newindex.
 239  * \param L The Lua VM state.
 240  * \param titlebar The wibox titlebar.
 241  * \param tok The attribute token.
 242  * \return The number of elements pushed on stack.
 243  */
 244 int
 245 luaA_titlebar_newindex(lua_State *L, wibox_t *titlebar, awesome_token_t tok)
 246 {
 247     client_t *c = NULL;
 248
 249     switch(tok)
 250     {
 251         position_t position;
 252         int i;
 253         size_t len;
 254         const char *buf;
 255
 256       case A_TK_ALIGN:
 257         if((buf = luaL_checklstring(L, 3, &len)))
 258             titlebar->align = draw_align_fromstr(buf, len);
 259         else
 260             return 0;
 261         break;
 262       case A_TK_BORDER_WIDTH:
 263         if((i = luaL_checknumber(L, 3)) >= 0)
 264             simplewindow_border_width_set(&titlebar->sw, i);
 265         else
 266             return 0;
 267         break;
 268       case A_TK_BORDER_COLOR:
 269         if((buf = luaL_checklstring(L, 3, &len)))
 270             if(xcolor_init_reply(xcolor_init_unchecked(&titlebar->sw.border.color, buf, len)))
 271                 simplewindow_border_color_set(&titlebar->sw, &titlebar->sw.border.color);
 272         return 0;
 273       case A_TK_POSITION:
 274         buf = luaL_checklstring(L, 3, &len);
 275         position = position_fromstr(buf, len);
 276         if(position != titlebar->position)
 277         {
 278             switch(position)
 279             {
 280               case Left:
 281                 switch(titlebar->position)
 282                 {
 283                     int tmp;
 284                   case Left:
 285                   case Right:
 286                     break;
 287                   case Top:
 288                   case Bottom:
 289                   case Floating:
 290                     tmp = titlebar->sw.geometry.width;
 291                     titlebar->sw.geometry.width = titlebar->sw.geometry.height;
 292                     titlebar->sw.geometry.height = tmp;
 293                     break;
 294                 }
 295                 simplewindow_orientation_set(&titlebar->sw, North);
 296                 break;
 297               case Right:
 298                 switch(titlebar->position)
 299                 {
 300                     int tmp;
 301                   case Left:
 302                   case Right:
 303                     break;
 304                   case Top:
 305                   case Bottom:
 306                   case Floating:
 307                     tmp = titlebar->sw.geometry.width;
 308                     titlebar->sw.geometry.width = titlebar->sw.geometry.height;
 309                     titlebar->sw.geometry.height = tmp;
 310                     break;
 311                 }
 312                 simplewindow_orientation_set(&titlebar->sw, South);
 313                 break;
 314               case Top:
 315               case Bottom:
 316               case Floating:
 317                 switch(titlebar->position)
 318                 {
 319                     int tmp;
 320                   case Left:
 321                   case Right:
 322                     tmp = titlebar->sw.geometry.width;
 323                     titlebar->sw.geometry.width = titlebar->sw.geometry.height;
 324                     titlebar->sw.geometry.height = tmp;
 325                     break;
 326                   case Top:
 327                   case Bottom:
 328                   case Floating:
 329                     break;
 330                 }
 331                 simplewindow_orientation_set(&titlebar->sw, East);
 332                 break;
 333             }
 334             titlebar->position = position;
 335             if((c = client_getbytitlebar(titlebar)))
 336             {
 337                 titlebar_update_geometry_floating(c);
 338                 /* call geometry hook for client because some like to
 339                  * set titlebar width in that hook, which make sense */
 340                 hooks_property(c, "geometry");
 341             }
 342         }
 343         break;
 344       default:
 345         return 0;
 346     }
 347
 348     if((c || (c = client_getbytitlebar(titlebar))))
 349         client_need_arrange(c);
 350
 351     return 0;
 352 }
 353
 354 const struct luaL_reg awesome_titlebar_methods[] =
 355 {
 356     { "__call", luaA_titlebar_new },
 357     { NULL, NULL }
 358 };
 359 const struct luaL_reg awesome_titlebar_meta[] =
 360 {
 361     { NULL, NULL }
 362 };
 363
 364 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80