objects/drawin.c

   1 /*
   2  * drawin.c - drawin functions
   3  *
   4  * Copyright © 2008-2009 Julien Danjou <julien@danjou.info>
   5  * Copyright ©      2010 Uli Schlachter <psychon@znc.in>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  */
  22
  23 #include "screen.h"
  24 #include "drawin.h"
  25 #include "objects/client.h"
  26 #include "screen.h"
  27 #include "xwindow.h"
  28 #include "luaa.h"
  29 #include "ewmh.h"
  30 #include "systray.h"
  31 #include "common/xcursor.h"
  32 #include "common/xutil.h"
  33
  34 #include <cairo-xcb.h>
  35
  36 LUA_OBJECT_FUNCS(drawin_class, drawin_t, drawin)
  37
  38 /** Kick out systray windows.
  39  */
  40 static void
  41 drawin_systray_kickout(drawin_t *w)
  42 {
  43     if(globalconf.systray.parent == w)
  44     {
  45         /* Who! Check that we're not deleting a drawin with a systray, because it
  46          * may be its parent. If so, we reparent to root before, otherwise it will
  47          * hurt very much. */
  48         systray_cleanup();
  49         xcb_reparent_window(globalconf.connection,
  50                             globalconf.systray.window,
  51                             globalconf.screen->root,
  52                             -512, -512);
  53
  54         globalconf.systray.parent = NULL;
  55     }
  56 }
  57
  58 /** Destroy all X resources of a drawin.
  59  * \param w The drawin to wipe.
  60  */
  61 static void
  62 drawin_wipe_resources(drawin_t *w)
  63 {
  64     if(w->window)
  65     {
  66         /* Activate BMA */
  67         client_ignore_enterleave_events();
  68         /* Make sure we don't accidentally kill the systray window */
  69         drawin_systray_kickout(w);
  70         xcb_destroy_window(globalconf.connection, w->window);
  71         /* Deactivate BMA */
  72         client_restore_enterleave_events();
  73         w->window = XCB_NONE;
  74     }
  75     if(w->pixmap)
  76     {
  77         xcb_free_pixmap(globalconf.connection, w->pixmap);
  78         w->pixmap = XCB_NONE;
  79     }
  80     if(w->surface)
  81     {
  82         cairo_surface_destroy(w->surface);
  83         w->surface = NULL;
  84     }
  85 }
  86
  87 static void
  88 drawin_wipe(drawin_t *drawin)
  89 {
  90     p_delete(&drawin->cursor);
  91     drawin_wipe_resources(drawin);
  92 }
  93
  94 void
  95 drawin_unref_simplified(drawin_t **item)
  96 {
  97     luaA_object_unref(globalconf.L, *item);
  98 }
  99
 100 static void
 101 drawin_update_drawing(drawin_t *w)
 102 {
 103     /* Clean up old stuff */
 104     if(w->surface)
 105     {
 106         /* In case lua still got a reference to the surface, it still won't be
 107          * able to do anything with it because we finish it. */
 108         cairo_surface_finish(w->surface);
 109         cairo_surface_destroy(w->surface);
 110     }
 111     if(w->pixmap)
 112         xcb_free_pixmap(globalconf.connection, w->pixmap);
 113
 114     /* Create a pixmap */
 115     xcb_screen_t *s = globalconf.screen;
 116     w->pixmap = xcb_generate_id(globalconf.connection);
 117     xcb_create_pixmap(globalconf.connection, globalconf.default_depth, w->pixmap, s->root,
 118                       w->geometry.width, w->geometry.height);
 119     /* and create a surface for that pixmap */
 120     w->surface = cairo_xcb_surface_create(globalconf.connection,
 121                                           w->pixmap, globalconf.visual,
 122                                           w->geometry.width, w->geometry.height);
 123     /* Make sure the pixmap doesn't contain garbage by filling it with black */
 124     cairo_t *cr = cairo_create(w->surface);
 125     cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR);
 126     cairo_paint(cr);
 127     cairo_destroy(cr);
 128 }
 129
 130 /** Initialize a drawin.
 131  * \param w The drawin to initialize.
 132  */
 133 static void
 134 drawin_init(drawin_t *w)
 135 {
 136     xcb_screen_t *s = globalconf.screen;
 137
 138     w->window = xcb_generate_id(globalconf.connection);
 139     xcb_create_window(globalconf.connection, globalconf.default_depth, w->window, s->root,
 140                       w->geometry.x, w->geometry.y,
 141                       w->geometry.width, w->geometry.height,
 142                       w->border_width, XCB_COPY_FROM_PARENT, globalconf.visual->visual_id,
 143                       XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL | XCB_CW_BIT_GRAVITY
 144                       | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP,
 145                       (const uint32_t [])
 146                       {
 147                           s->black_pixel,
 148                           w->border_color.pixel,
 149                           XCB_GRAVITY_NORTH_WEST,
 150                           1,
 151                           XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT
 152                           | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_ENTER_WINDOW
 153                           | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_STRUCTURE_NOTIFY
 154                           | XCB_EVENT_MASK_POINTER_MOTION | XCB_EVENT_MASK_EXPOSURE
 155                           | XCB_EVENT_MASK_PROPERTY_CHANGE,
 156                           globalconf.default_cmap
 157                       });
 158
 159     drawin_update_drawing(w);
 160
 161     /* Set the right type property */
 162     ewmh_update_window_type(w->window, window_translate_type(w->type));
 163 }
 164
 165 /** Refresh the window content by copying its pixmap data to its window.
 166  * \param w The drawin to refresh.
 167  */
 168 static inline void
 169 drawin_refresh_pixmap(drawin_t *w)
 170 {
 171     drawin_refresh_pixmap_partial(w, 0, 0, w->geometry.width, w->geometry.height);
 172 }
 173
 174 /** Move and/or resize a drawin
 175  * \param L The Lua VM state.
 176  * \param udx The index of the drawin.
 177  * \param geometry The new geometry.
 178  */
 179 static void
 180 drawin_moveresize(lua_State *L, int udx, area_t geometry)
 181 {
 182     drawin_t *w = luaA_checkudata(L, udx, &drawin_class);
 183     if(w->window)
 184     {
 185         int number_of_vals = 0;
 186         uint32_t moveresize_win_vals[4], mask_vals = 0;
 187
 188         if(w->geometry.x != geometry.x)
 189         {
 190             w->geometry.x = moveresize_win_vals[number_of_vals++] = geometry.x;
 191             mask_vals |= XCB_CONFIG_WINDOW_X;
 192         }
 193
 194         if(w->geometry.y != geometry.y)
 195         {
 196             w->geometry.y = moveresize_win_vals[number_of_vals++] = geometry.y;
 197             mask_vals |= XCB_CONFIG_WINDOW_Y;
 198         }
 199
 200         if(geometry.width > 0 && w->geometry.width != geometry.width)
 201         {
 202             w->geometry.width = moveresize_win_vals[number_of_vals++] = geometry.width;
 203             mask_vals |= XCB_CONFIG_WINDOW_WIDTH;
 204         }
 205
 206         if(geometry.height > 0 && w->geometry.height != geometry.height)
 207         {
 208             w->geometry.height = moveresize_win_vals[number_of_vals++] = geometry.height;
 209             mask_vals |= XCB_CONFIG_WINDOW_HEIGHT;
 210         }
 211
 212         if(mask_vals & (XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT))
 213             drawin_update_drawing(w);
 214
 215         /* Activate BMA */
 216         client_ignore_enterleave_events();
 217
 218         if(mask_vals)
 219             xcb_configure_window(globalconf.connection, w->window, mask_vals, moveresize_win_vals);
 220
 221         /* Deactivate BMA */
 222         client_restore_enterleave_events();
 223
 224         w->screen = screen_getbycoord(w->geometry.x, w->geometry.y);
 225
 226         if(mask_vals & XCB_CONFIG_WINDOW_X)
 227             luaA_object_emit_signal(L, udx, "property::x", 0);
 228         if(mask_vals & XCB_CONFIG_WINDOW_Y)
 229             luaA_object_emit_signal(L, udx, "property::y", 0);
 230         if(mask_vals & XCB_CONFIG_WINDOW_WIDTH)
 231             luaA_object_emit_signal(L, udx, "property::width", 0);
 232         if(mask_vals & XCB_CONFIG_WINDOW_HEIGHT)
 233             luaA_object_emit_signal(L, udx, "property::height", 0);
 234     }
 235     else
 236     {
 237 #define DO_DRAWIN_GEOMETRY_CHECK_AND_EMIT(prop) \
 238         if(w->geometry.prop != geometry.prop) \
 239         { \
 240             w->geometry.prop = geometry.prop; \
 241             luaA_object_emit_signal(L, udx, "property::" #prop, 0); \
 242         }
 243         DO_DRAWIN_GEOMETRY_CHECK_AND_EMIT(x)
 244         DO_DRAWIN_GEOMETRY_CHECK_AND_EMIT(y)
 245         DO_DRAWIN_GEOMETRY_CHECK_AND_EMIT(width)
 246         DO_DRAWIN_GEOMETRY_CHECK_AND_EMIT(height)
 247 #undef DO_DRAWIN_GEOMETRY_CHECK_AND_EMIT
 248     }
 249 }
 250
 251 /** Refresh the window content by copying its pixmap data to its window.
 252  * \param drawin The drawin to refresh.
 253  * \param x The copy starting point x component.
 254  * \param y The copy starting point y component.
 255  * \param w The copy width from the x component.
 256  * \param h The copy height from the y component.
 257  */
 258 void
 259 drawin_refresh_pixmap_partial(drawin_t *drawin,
 260                               int16_t x, int16_t y,
 261                               uint16_t w, uint16_t h)
 262 {
 263     /* Make cairo do all pending drawing */
 264     cairo_surface_flush(drawin->surface);
 265     xcb_copy_area(globalconf.connection, drawin->pixmap,
 266                   drawin->window, globalconf.gc, x, y, x, y,
 267                   w, h);
 268 }
 269
 270 static void
 271 drawin_map(drawin_t *drawin)
 272 {
 273     /* Activate BMA */
 274     client_ignore_enterleave_events();
 275     /* Map the drawin */
 276     xcb_map_window(globalconf.connection, drawin->window);
 277     /* Deactivate BMA */
 278     client_restore_enterleave_events();
 279     /* Stack this drawin correctly */
 280     stack_windows();
 281 }
 282
 283 /** Get a drawin by its window.
 284  * \param win The window id.
 285  * \return A drawin if found, NULL otherwise.
 286  */
 287 drawin_t *
 288 drawin_getbywin(xcb_window_t win)
 289 {
 290     foreach(w, globalconf.drawins)
 291         if((*w)->window == win)
 292             return *w;
 293     return NULL;
 294 }
 295
 296 /** Set a drawin visible or not.
 297  * \param L The Lua VM state.
 298  * \param udx The drawin.
 299  * \param v The visible value.
 300  */
 301 static void
 302 drawin_set_visible(lua_State *L, int udx, bool v)
 303 {
 304     drawin_t *drawin = luaA_checkudata(L, udx, &drawin_class);
 305     if(v != drawin->visible)
 306     {
 307         drawin->visible = v;
 308
 309         if(drawin->screen)
 310         {
 311             if(drawin->visible)
 312                 drawin_map(drawin);
 313             else
 314             {
 315                 /* Active BMA */
 316                 client_ignore_enterleave_events();
 317                 /* Unmap window */
 318                 xcb_unmap_window(globalconf.connection, drawin->window);
 319                 /* Active BMA */
 320                 client_restore_enterleave_events();
 321             }
 322         }
 323
 324         luaA_object_emit_signal(L, udx, "property::visible", 0);
 325     }
 326 }
 327
 328 /** Remove a drawin from a screen.
 329  * \param L The Lua VM state.
 330  * \param udx drawin to detach from screen.
 331  */
 332 static void
 333 drawin_detach(lua_State *L, int udx)
 334 {
 335     drawin_t *drawin = luaA_checkudata(L, udx, &drawin_class);
 336     if(drawin->screen)
 337     {
 338         bool v;
 339
 340         /* save visible state */
 341         v = drawin->visible;
 342         drawin->visible = false;
 343         /* restore visibility */
 344         drawin->visible = v;
 345
 346         drawin_wipe_resources(drawin);
 347
 348         foreach(item, globalconf.drawins)
 349             if(*item == drawin)
 350             {
 351                 drawin_array_remove(&globalconf.drawins, item);
 352                 break;
 353             }
 354
 355         if(strut_has_value(&drawin->strut))
 356             screen_emit_signal(L, drawin->screen, "property::workarea", 0);
 357
 358         drawin->screen = NULL;
 359         luaA_object_emit_signal(L, udx, "property::screen", 0);
 360
 361         luaA_object_unref(globalconf.L, drawin);
 362     }
 363 }
 364
 365 /** Attach a drawin that is on top of the stack.
 366  * \param L The Lua VM state.
 367  * \param udx The drawin to attach.
 368  * \param s The screen to attach the drawin to.
 369  */
 370 static void
 371 drawin_attach(lua_State *L, int udx, screen_t *s)
 372 {
 373     /* duplicate drawin */
 374     lua_pushvalue(L, udx);
 375     /* ref it */
 376     drawin_t *drawin = luaA_object_ref_class(globalconf.L, -1, &drawin_class);
 377
 378     drawin_detach(L, udx);
 379
 380     /* Set the drawin screen */
 381     drawin->screen = s;
 382
 383     /* Check that the drawin coordinates matches the screen. */
 384     screen_t *cscreen =
 385         screen_getbycoord(drawin->geometry.x, drawin->geometry.y);
 386
 387     /* If it does not match, move it to the screen coordinates */
 388     if(cscreen != drawin->screen)
 389         drawin_moveresize(L, udx, (area_t) { .x = s->geometry.x,
 390                                             .y = s->geometry.y,
 391                                             .width = drawin->geometry.width,
 392                                             .height = drawin->geometry.height });
 393
 394     drawin_array_append(&globalconf.drawins, drawin);
 395
 396     drawin_init(drawin);
 397
 398     xwindow_set_cursor(drawin->window,
 399                       xcursor_new(globalconf.connection, xcursor_font_fromstr(drawin->cursor)));
 400
 401     if(drawin->opacity != -1)
 402         xwindow_set_opacity(drawin->window, drawin->opacity);
 403
 404     ewmh_update_strut(drawin->window, &drawin->strut);
 405
 406     if(drawin->visible)
 407         drawin_map(drawin);
 408
 409     luaA_object_emit_signal(L, udx, "property::screen", 0);
 410
 411     if(strut_has_value(&drawin->strut))
 412         screen_emit_signal(L, drawin->screen, "property::workarea", 0);
 413 }
 414
 415 /** Create a new drawin.
 416  * \param L The Lua VM state.
 417  * \return The number of elements pushed on stack.
 418  */
 419 static int
 420 luaA_drawin_new(lua_State *L)
 421 {
 422     luaA_class_new(L, &drawin_class);
 423
 424     drawin_t *w = luaA_checkudata(L, -1, &drawin_class);
 425
 426     w->visible = true;
 427
 428     if(!w->opacity)
 429         w->opacity = -1;
 430
 431     if(!w->cursor)
 432         w->cursor = a_strdup("left_ptr");
 433
 434     if(!w->geometry.width)
 435         w->geometry.width = 1;
 436
 437     if(!w->geometry.height)
 438         w->geometry.height = 1;
 439
 440     if(w->type == 0)
 441         w->type = _NET_WM_WINDOW_TYPE_NORMAL;
 442
 443     return 1;
 444 }
 445
 446 /* Set or get the drawin geometry.
 447  * \param L The Lua VM state.
 448  * \return The number of elements pushed on stack.
 449  * \luastack
 450  * \lparam An optional table with drawin geometry.
 451  * \lreturn The drawin geometry.
 452  */
 453 static int
 454 luaA_drawin_geometry(lua_State *L)
 455 {
 456     drawin_t *drawin = luaA_checkudata(L, 1, &drawin_class);
 457
 458     if(lua_gettop(L) == 2)
 459     {
 460         area_t wingeom;
 461
 462         luaA_checktable(L, 2);
 463         wingeom.x = luaA_getopt_number(L, 2, "x", drawin->geometry.x);
 464         wingeom.y = luaA_getopt_number(L, 2, "y", drawin->geometry.y);
 465         wingeom.width = luaA_getopt_number(L, 2, "width", drawin->geometry.width);
 466         wingeom.height = luaA_getopt_number(L, 2, "height", drawin->geometry.height);
 467
 468         if(wingeom.width > 0 && wingeom.height > 0)
 469             drawin_moveresize(L, 1, wingeom);
 470     }
 471
 472     return luaA_pusharea(L, drawin->geometry);
 473 }
 474
 475 LUA_OBJECT_EXPORT_PROPERTY(drawin, drawin_t, ontop, lua_pushboolean)
 476 LUA_OBJECT_EXPORT_PROPERTY(drawin, drawin_t, cursor, lua_pushstring)
 477 LUA_OBJECT_EXPORT_PROPERTY(drawin, drawin_t, visible, lua_pushboolean)
 478
 479 static int
 480 luaA_drawin_set_x(lua_State *L, drawin_t *drawin)
 481 {
 482     drawin_moveresize(L, -3, (area_t) { .x = luaL_checknumber(L, -1),
 483                                         .y = drawin->geometry.y,
 484                                         .width = drawin->geometry.width,
 485                                         .height = drawin->geometry.height });
 486     return 0;
 487 }
 488
 489 static int
 490 luaA_drawin_get_x(lua_State *L, drawin_t *drawin)
 491 {
 492     lua_pushnumber(L, drawin->geometry.x);
 493     return 1;
 494 }
 495
 496 static int
 497 luaA_drawin_set_y(lua_State *L, drawin_t *drawin)
 498 {
 499     drawin_moveresize(L, -3, (area_t) { .x = drawin->geometry.x,
 500                                         .y = luaL_checknumber(L, -1),
 501                                         .width = drawin->geometry.width,
 502                                         .height = drawin->geometry.height });
 503     return 0;
 504 }
 505
 506 static int
 507 luaA_drawin_get_y(lua_State *L, drawin_t *drawin)
 508 {
 509     lua_pushnumber(L, drawin->geometry.y);
 510     return 1;
 511 }
 512
 513 static int
 514 luaA_drawin_set_width(lua_State *L, drawin_t *drawin)
 515 {
 516     int width = luaL_checknumber(L, -1);
 517     if(width <= 0)
 518         luaL_error(L, "invalid width");
 519     drawin_moveresize(L, -3, (area_t) { .x = drawin->geometry.x,
 520                                         .y = drawin->geometry.y,
 521                                         .width = width,
 522                                         .height = drawin->geometry.height });
 523     return 0;
 524 }
 525
 526 static int
 527 luaA_drawin_get_width(lua_State *L, drawin_t *drawin)
 528 {
 529     lua_pushnumber(L, drawin->geometry.width);
 530     return 1;
 531 }
 532
 533 static int
 534 luaA_drawin_set_height(lua_State *L, drawin_t *drawin)
 535 {
 536     int height = luaL_checknumber(L, -1);
 537     if(height <= 0)
 538         luaL_error(L, "invalid height");
 539     drawin_moveresize(L, -3, (area_t) { .x = drawin->geometry.x,
 540                                        .y = drawin->geometry.y,
 541                                        .width = drawin->geometry.width,
 542                                        .height = height });
 543     return 0;
 544 }
 545
 546 static int
 547 luaA_drawin_get_height(lua_State *L, drawin_t *drawin)
 548 {
 549     lua_pushnumber(L, drawin->geometry.height);
 550     return 1;
 551 }
 552
 553 /** Set the drawin on top status.
 554  * \param L The Lua VM state.
 555  * \param drawin The drawin object.
 556  * \return The number of elements pushed on stack.
 557  */
 558 static int
 559 luaA_drawin_set_ontop(lua_State *L, drawin_t *drawin)
 560 {
 561     bool b = luaA_checkboolean(L, -1);
 562     if(b != drawin->ontop)
 563     {
 564         drawin->ontop = b;
 565         stack_windows();
 566         luaA_object_emit_signal(L, -3, "property::ontop", 0);
 567     }
 568     return 0;
 569 }
 570
 571 /** Set the drawin cursor.
 572  * \param L The Lua VM state.
 573  * \param drawin The drawin object.
 574  * \return The number of elements pushed on stack.
 575  */
 576 static int
 577 luaA_drawin_set_cursor(lua_State *L, drawin_t *drawin)
 578 {
 579     const char *buf = luaL_checkstring(L, -1);
 580     if(buf)
 581     {
 582         uint16_t cursor_font = xcursor_font_fromstr(buf);
 583         if(cursor_font)
 584         {
 585             xcb_cursor_t cursor = xcursor_new(globalconf.connection, cursor_font);
 586             p_delete(&drawin->cursor);
 587             drawin->cursor = a_strdup(buf);
 588             xwindow_set_cursor(drawin->window, cursor);
 589             luaA_object_emit_signal(L, -3, "property::cursor", 0);
 590         }
 591     }
 592     return 0;
 593 }
 594
 595 /** Set the drawin screen.
 596  * \param L The Lua VM state.
 597  * \param drawin The drawin object.
 598  * \return The number of elements pushed on stack.
 599  */
 600 static int
 601 luaA_drawin_set_screen(lua_State *L, drawin_t *drawin)
 602 {
 603     if(lua_isnil(L, -1))
 604         drawin_detach(L, -3);
 605     else
 606     {
 607         int screen = luaL_checknumber(L, -1) - 1;
 608         luaA_checkscreen(screen);
 609         if(!drawin->screen || screen != screen_array_indexof(&globalconf.screens, drawin->screen))
 610             drawin_attach(L, -3, &globalconf.screens.tab[screen]);
 611     }
 612     return 0;
 613 }
 614
 615 /** Get the drawin screen.
 616  * \param L The Lua VM state.
 617  * \param drawin The drawin object.
 618  * \return The number of elements pushed on stack.
 619  */
 620 static int
 621 luaA_drawin_get_screen(lua_State *L, drawin_t *drawin)
 622 {
 623     if(!drawin->screen)
 624         return 0;
 625     lua_pushnumber(L, screen_array_indexof(&globalconf.screens, drawin->screen) + 1);
 626     return 1;
 627 }
 628
 629 /** Set the drawin visibility.
 630  * \param L The Lua VM state.
 631  * \param drawin The drawin object.
 632  * \return The number of elements pushed on stack.
 633  */
 634 static int
 635 luaA_drawin_set_visible(lua_State *L, drawin_t *drawin)
 636 {
 637     drawin_set_visible(L, -3, luaA_checkboolean(L, -1));
 638     return 0;
 639 }
 640
 641 /** Get a drawin's surface
 642  * \param L The Lua VM state.
 643  * \param drawin The drawin object.
 644  * \return The number of elements pushed on stack.
 645  */
 646 static int
 647 luaA_drawin_get_surface(lua_State *L, drawin_t *drawin)
 648 {
 649     return oocairo_surface_push(L, drawin->surface);
 650 }
 651
 652 /** Refresh a drawin's content. This has to be called whenever some drawing to
 653  * the drawin's surface has been done and should become visible.
 654  * \param L The Lua VM state.
 655  * \return The number of elements pushed on stack.
 656  */
 657 static int
 658 luaA_drawin_refresh(lua_State *L)
 659 {
 660     drawin_t *drawin = luaA_checkudata(L, 1, &drawin_class);
 661     drawin_refresh_pixmap(drawin);
 662
 663     return 0;
 664 }
 665
 666 void
 667 drawin_class_setup(lua_State *L)
 668 {
 669     static const struct luaL_reg drawin_methods[] =
 670     {
 671         LUA_CLASS_METHODS(drawin)
 672         { "__call", luaA_drawin_new },
 673         { NULL, NULL }
 674     };
 675
 676     static const struct luaL_reg drawin_meta[] =
 677     {
 678         LUA_OBJECT_META(drawin)
 679         LUA_CLASS_META
 680         { "geometry", luaA_drawin_geometry },
 681         { "refresh", luaA_drawin_refresh },
 682         { NULL, NULL },
 683     };
 684
 685     luaA_class_setup(L, &drawin_class, "drawin", &window_class,
 686                      (lua_class_allocator_t) drawin_new,
 687                      (lua_class_collector_t) drawin_wipe,
 688                      NULL,
 689                      luaA_class_index_miss_property, luaA_class_newindex_miss_property,
 690                      drawin_methods, drawin_meta);
 691     luaA_class_add_property(&drawin_class, "surface",
 692                             NULL,
 693                             (lua_class_propfunc_t) luaA_drawin_get_surface,
 694                             NULL);
 695     luaA_class_add_property(&drawin_class, "visible",
 696                             (lua_class_propfunc_t) luaA_drawin_set_visible,
 697                             (lua_class_propfunc_t) luaA_drawin_get_visible,
 698                             (lua_class_propfunc_t) luaA_drawin_set_visible);
 699     luaA_class_add_property(&drawin_class, "ontop",
 700                             (lua_class_propfunc_t) luaA_drawin_set_ontop,
 701                             (lua_class_propfunc_t) luaA_drawin_get_ontop,
 702                             (lua_class_propfunc_t) luaA_drawin_set_ontop);
 703     luaA_class_add_property(&drawin_class, "screen",
 704                             NULL,
 705                             (lua_class_propfunc_t) luaA_drawin_get_screen,
 706                             (lua_class_propfunc_t) luaA_drawin_set_screen);
 707     luaA_class_add_property(&drawin_class, "cursor",
 708                             (lua_class_propfunc_t) luaA_drawin_set_cursor,
 709                             (lua_class_propfunc_t) luaA_drawin_get_cursor,
 710                             (lua_class_propfunc_t) luaA_drawin_set_cursor);
 711     luaA_class_add_property(&drawin_class, "x",
 712                             (lua_class_propfunc_t) luaA_drawin_set_x,
 713                             (lua_class_propfunc_t) luaA_drawin_get_x,
 714                             (lua_class_propfunc_t) luaA_drawin_set_x);
 715     luaA_class_add_property(&drawin_class, "y",
 716                             (lua_class_propfunc_t) luaA_drawin_set_y,
 717                             (lua_class_propfunc_t) luaA_drawin_get_y,
 718                             (lua_class_propfunc_t) luaA_drawin_set_y);
 719     luaA_class_add_property(&drawin_class, "width",
 720                             (lua_class_propfunc_t) luaA_drawin_set_width,
 721                             (lua_class_propfunc_t) luaA_drawin_get_width,
 722                             (lua_class_propfunc_t) luaA_drawin_set_width);
 723     luaA_class_add_property(&drawin_class, "height",
 724                             (lua_class_propfunc_t) luaA_drawin_set_height,
 725                             (lua_class_propfunc_t) luaA_drawin_get_height,
 726                             (lua_class_propfunc_t) luaA_drawin_set_height);
 727     luaA_class_add_property(&drawin_class, "type",
 728                             (lua_class_propfunc_t) luaA_window_set_type,
 729                             (lua_class_propfunc_t) luaA_window_get_type,
 730                             (lua_class_propfunc_t) luaA_window_set_type);
 731
 732     signal_add(&drawin_class.signals, "mouse::enter");
 733     signal_add(&drawin_class.signals, "mouse::leave");
 734     signal_add(&drawin_class.signals, "property::border_width");
 735     signal_add(&drawin_class.signals, "property::cursor");
 736     signal_add(&drawin_class.signals, "property::height");
 737     signal_add(&drawin_class.signals, "property::ontop");
 738     signal_add(&drawin_class.signals, "property::screen");
 739     signal_add(&drawin_class.signals, "property::visible");
 740     signal_add(&drawin_class.signals, "property::widgets");
 741     signal_add(&drawin_class.signals, "property::width");
 742     signal_add(&drawin_class.signals, "property::x");
 743     signal_add(&drawin_class.signals, "property::y");
 744 }
 745
 746 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80