/* * drawin.c - drawin functions * * Copyright © 2008-2009 Julien Danjou * Copyright © 2010 Uli Schlachter * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * */ #include "screen.h" #include "drawin.h" #include "objects/client.h" #include "screen.h" #include "xwindow.h" #include "luaa.h" #include "ewmh.h" #include "systray.h" #include "common/xcursor.h" #include "common/xutil.h" #include LUA_OBJECT_FUNCS(drawin_class, drawin_t, drawin) /** Kick out systray windows. */ static void drawin_systray_kickout(drawin_t *w) { if(globalconf.systray.parent == w) { /* Who! Check that we're not deleting a drawin with a systray, because it * may be its parent. If so, we reparent to root before, otherwise it will * hurt very much. */ systray_cleanup(); xcb_reparent_window(globalconf.connection, globalconf.systray.window, globalconf.screen->root, -512, -512); globalconf.systray.parent = NULL; } } static void drawin_wipe(drawin_t *w) { /* The drawin must already be unmapped, else it * couldn't be garbage collected -> no unmap needed */ p_delete(&w->cursor); if(w->surface) { /* Make sure that cairo knows that this surface can't be unused anymore. * This is needed since lua could still have a reference to it. */ cairo_surface_finish(w->surface); cairo_surface_destroy(w->surface); w->surface = NULL; } if(w->window) { /* Activate BMA */ client_ignore_enterleave_events(); /* Make sure we don't accidentally kill the systray window */ drawin_systray_kickout(w); xcb_destroy_window(globalconf.connection, w->window); /* Deactivate BMA */ client_restore_enterleave_events(); w->window = XCB_NONE; } if(w->pixmap) { xcb_free_pixmap(globalconf.connection, w->pixmap); w->pixmap = XCB_NONE; } } void drawin_unref_simplified(drawin_t **item) { luaA_object_unref(globalconf.L, *item); } static void drawin_update_drawing(drawin_t *w) { /* If this drawin isn't visible, we don't need an up-to-date cairo surface * for it. (drawin_map() will later make sure we are called again) */ if(!w->visible) return; /* Clean up old stuff */ if(w->surface) { /* In case lua still got a reference to the surface, it still won't be * able to do anything with it because we finish it. */ cairo_surface_finish(w->surface); cairo_surface_destroy(w->surface); } if(w->pixmap) xcb_free_pixmap(globalconf.connection, w->pixmap); /* Create a pixmap */ xcb_screen_t *s = globalconf.screen; w->pixmap = xcb_generate_id(globalconf.connection); xcb_create_pixmap(globalconf.connection, globalconf.default_depth, w->pixmap, s->root, w->geometry.width, w->geometry.height); /* and create a surface for that pixmap */ w->surface = cairo_xcb_surface_create(globalconf.connection, w->pixmap, globalconf.visual, w->geometry.width, w->geometry.height); /* Make sure the pixmap doesn't contain garbage by filling it with black */ cairo_t *cr = cairo_create(w->surface); cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR); cairo_paint(cr); cairo_destroy(cr); } /** Initialize a drawin. * \param w The drawin to initialize. */ static void drawin_init(drawin_t *w) { xcb_screen_t *s = globalconf.screen; w->window = xcb_generate_id(globalconf.connection); xcb_create_window(globalconf.connection, globalconf.default_depth, w->window, s->root, w->geometry.x, w->geometry.y, w->geometry.width, w->geometry.height, w->border_width, XCB_COPY_FROM_PARENT, globalconf.visual->visual_id, XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL | XCB_CW_BIT_GRAVITY | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP | XCB_CW_CURSOR, (const uint32_t []) { w->bg_color.pixel, w->border_color.pixel, XCB_GRAVITY_NORTH_WEST, 1, XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_STRUCTURE_NOTIFY | XCB_EVENT_MASK_POINTER_MOTION | XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_PROPERTY_CHANGE, globalconf.default_cmap, xcursor_new(globalconf.connection, xcursor_font_fromstr(w->cursor)) }); /* Set the right properties */ ewmh_update_window_type(w->window, window_translate_type(w->type)); ewmh_update_strut(w->window, &w->strut); } /** Refresh the window content by copying its pixmap data to its window. * \param w The drawin to refresh. */ static inline void drawin_refresh_pixmap(drawin_t *w) { drawin_refresh_pixmap_partial(w, 0, 0, w->geometry.width, w->geometry.height); } /** Move and/or resize a drawin * \param L The Lua VM state. * \param udx The index of the drawin. * \param geometry The new geometry. */ static void drawin_moveresize(lua_State *L, int udx, area_t geometry) { drawin_t *w = luaA_checkudata(L, udx, &drawin_class); int number_of_vals = 0; uint32_t moveresize_win_vals[4], mask_vals = 0; if(w->geometry.x != geometry.x) { w->geometry.x = moveresize_win_vals[number_of_vals++] = geometry.x; mask_vals |= XCB_CONFIG_WINDOW_X; } if(w->geometry.y != geometry.y) { w->geometry.y = moveresize_win_vals[number_of_vals++] = geometry.y; mask_vals |= XCB_CONFIG_WINDOW_Y; } if(geometry.width > 0 && w->geometry.width != geometry.width) { w->geometry.width = moveresize_win_vals[number_of_vals++] = geometry.width; mask_vals |= XCB_CONFIG_WINDOW_WIDTH; } if(geometry.height > 0 && w->geometry.height != geometry.height) { w->geometry.height = moveresize_win_vals[number_of_vals++] = geometry.height; mask_vals |= XCB_CONFIG_WINDOW_HEIGHT; } if(mask_vals & (XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT)) drawin_update_drawing(w); /* Activate BMA */ client_ignore_enterleave_events(); if(mask_vals) xcb_configure_window(globalconf.connection, w->window, mask_vals, moveresize_win_vals); /* Deactivate BMA */ client_restore_enterleave_events(); if(mask_vals & XCB_CONFIG_WINDOW_X) luaA_object_emit_signal(L, udx, "property::x", 0); if(mask_vals & XCB_CONFIG_WINDOW_Y) luaA_object_emit_signal(L, udx, "property::y", 0); if(mask_vals & XCB_CONFIG_WINDOW_WIDTH) luaA_object_emit_signal(L, udx, "property::width", 0); if(mask_vals & XCB_CONFIG_WINDOW_HEIGHT) luaA_object_emit_signal(L, udx, "property::height", 0); } /** Refresh the window content by copying its pixmap data to its window. * \param drawin The drawin to refresh. * \param x The copy starting point x component. * \param y The copy starting point y component. * \param w The copy width from the x component. * \param h The copy height from the y component. */ void drawin_refresh_pixmap_partial(drawin_t *drawin, int16_t x, int16_t y, uint16_t w, uint16_t h) { /* Make cairo do all pending drawing */ cairo_surface_flush(drawin->surface); xcb_copy_area(globalconf.connection, drawin->pixmap, drawin->window, globalconf.gc, x, y, x, y, w, h); } static void drawin_map(drawin_t *drawin) { /* Activate BMA */ client_ignore_enterleave_events(); /* Map the drawin */ xcb_map_window(globalconf.connection, drawin->window); drawin_update_drawing(drawin); /* Deactivate BMA */ client_restore_enterleave_events(); /* Stack this drawin correctly */ stack_windows(); /* Add it to the list of visible drawins */ drawin_array_append(&globalconf.drawins, drawin); } static void drawin_unmap(drawin_t *drawin) { xcb_unmap_window(globalconf.connection, drawin->window); foreach(item, globalconf.drawins) if(*item == drawin) { drawin_array_remove(&globalconf.drawins, item); break; } } /** Get a drawin by its window. * \param win The window id. * \return A drawin if found, NULL otherwise. */ drawin_t * drawin_getbywin(xcb_window_t win) { foreach(w, globalconf.drawins) if((*w)->window == win) return *w; return NULL; } /** Set a drawin visible or not. * \param L The Lua VM state. * \param udx The drawin. * \param v The visible value. */ static void drawin_set_visible(lua_State *L, int udx, bool v) { drawin_t *drawin = luaA_checkudata(L, udx, &drawin_class); if(v != drawin->visible) { drawin->visible = v; if(drawin->visible) { drawin_map(drawin); /* duplicate drawin */ lua_pushvalue(L, udx); /* ref it */ luaA_object_ref_class(globalconf.L, -1, &drawin_class); } else { /* Active BMA */ client_ignore_enterleave_events(); /* Unmap window */ drawin_unmap(drawin); /* Active BMA */ client_restore_enterleave_events(); /* unref it */ luaA_object_unref(globalconf.L, drawin); } luaA_object_emit_signal(L, udx, "property::visible", 0); if(strut_has_value(&drawin->strut)) { screen_t *screen = screen_getbycoord(drawin->geometry.x, drawin->geometry.y); screen_emit_signal(globalconf.L, screen, "property::workarea", 0); } } } /** Create a new drawin. * \param L The Lua VM state. * \return The number of elements pushed on stack. */ static int luaA_drawin_new(lua_State *L) { luaA_class_new(L, &drawin_class); drawin_t *w = luaA_checkudata(L, -1, &drawin_class); w->visible = false; if(!w->opacity) w->opacity = -1; if(!w->cursor) w->cursor = a_strdup("left_ptr"); if(!w->geometry.width) w->geometry.width = 1; if(!w->geometry.height) w->geometry.height = 1; if(w->type == 0) w->type = _NET_WM_WINDOW_TYPE_NORMAL; drawin_init(w); return 1; } /* Set or get the drawin geometry. * \param L The Lua VM state. * \return The number of elements pushed on stack. * \luastack * \lparam An optional table with drawin geometry. * \lreturn The drawin geometry. */ static int luaA_drawin_geometry(lua_State *L) { drawin_t *drawin = luaA_checkudata(L, 1, &drawin_class); if(lua_gettop(L) == 2) { area_t wingeom; luaA_checktable(L, 2); wingeom.x = luaA_getopt_number(L, 2, "x", drawin->geometry.x); wingeom.y = luaA_getopt_number(L, 2, "y", drawin->geometry.y); wingeom.width = luaA_getopt_number(L, 2, "width", drawin->geometry.width); wingeom.height = luaA_getopt_number(L, 2, "height", drawin->geometry.height); if(wingeom.width > 0 && wingeom.height > 0) drawin_moveresize(L, 1, wingeom); } return luaA_pusharea(L, drawin->geometry); } /** Set the drawin background color. * \param L The Lua VM state. * \param drawin The drawin object. * \return The number of elements pushed on stack. */ static int luaA_drawin_set_bg_color(lua_State *L, drawin_t *drawin) { size_t len; const char *color_name = luaL_checklstring(L, -1, &len); if(color_name && color_init_reply(color_init_unchecked(&drawin->bg_color, color_name, len))) { xcb_change_window_attributes(globalconf.connection, drawin->window, XCB_CW_BACK_PIXEL, &drawin->bg_color.pixel); luaA_object_emit_signal(L, -3, "property::bg_color", 0); } return 0; } LUA_OBJECT_EXPORT_PROPERTY(drawin, drawin_t, ontop, lua_pushboolean) LUA_OBJECT_EXPORT_PROPERTY(drawin, drawin_t, cursor, lua_pushstring) LUA_OBJECT_EXPORT_PROPERTY(drawin, drawin_t, visible, lua_pushboolean) LUA_OBJECT_EXPORT_PROPERTY(drawin, drawin_t, bg_color, luaA_pushcolor) static int luaA_drawin_set_x(lua_State *L, drawin_t *drawin) { drawin_moveresize(L, -3, (area_t) { .x = luaL_checknumber(L, -1), .y = drawin->geometry.y, .width = drawin->geometry.width, .height = drawin->geometry.height }); return 0; } static int luaA_drawin_get_x(lua_State *L, drawin_t *drawin) { lua_pushnumber(L, drawin->geometry.x); return 1; } static int luaA_drawin_set_y(lua_State *L, drawin_t *drawin) { drawin_moveresize(L, -3, (area_t) { .x = drawin->geometry.x, .y = luaL_checknumber(L, -1), .width = drawin->geometry.width, .height = drawin->geometry.height }); return 0; } static int luaA_drawin_get_y(lua_State *L, drawin_t *drawin) { lua_pushnumber(L, drawin->geometry.y); return 1; } static int luaA_drawin_set_width(lua_State *L, drawin_t *drawin) { int width = luaL_checknumber(L, -1); if(width <= 0) luaL_error(L, "invalid width"); drawin_moveresize(L, -3, (area_t) { .x = drawin->geometry.x, .y = drawin->geometry.y, .width = width, .height = drawin->geometry.height }); return 0; } static int luaA_drawin_get_width(lua_State *L, drawin_t *drawin) { lua_pushnumber(L, drawin->geometry.width); return 1; } static int luaA_drawin_set_height(lua_State *L, drawin_t *drawin) { int height = luaL_checknumber(L, -1); if(height <= 0) luaL_error(L, "invalid height"); drawin_moveresize(L, -3, (area_t) { .x = drawin->geometry.x, .y = drawin->geometry.y, .width = drawin->geometry.width, .height = height }); return 0; } static int luaA_drawin_get_height(lua_State *L, drawin_t *drawin) { lua_pushnumber(L, drawin->geometry.height); return 1; } /** Set the drawin on top status. * \param L The Lua VM state. * \param drawin The drawin object. * \return The number of elements pushed on stack. */ static int luaA_drawin_set_ontop(lua_State *L, drawin_t *drawin) { bool b = luaA_checkboolean(L, -1); if(b != drawin->ontop) { drawin->ontop = b; stack_windows(); luaA_object_emit_signal(L, -3, "property::ontop", 0); } return 0; } /** Set the drawin cursor. * \param L The Lua VM state. * \param drawin The drawin object. * \return The number of elements pushed on stack. */ static int luaA_drawin_set_cursor(lua_State *L, drawin_t *drawin) { const char *buf = luaL_checkstring(L, -1); if(buf) { uint16_t cursor_font = xcursor_font_fromstr(buf); if(cursor_font) { xcb_cursor_t cursor = xcursor_new(globalconf.connection, cursor_font); p_delete(&drawin->cursor); drawin->cursor = a_strdup(buf); xwindow_set_cursor(drawin->window, cursor); luaA_object_emit_signal(L, -3, "property::cursor", 0); } } return 0; } /** Set the drawin visibility. * \param L The Lua VM state. * \param drawin The drawin object. * \return The number of elements pushed on stack. */ static int luaA_drawin_set_visible(lua_State *L, drawin_t *drawin) { drawin_set_visible(L, -3, luaA_checkboolean(L, -1)); return 0; } /** Get a drawin's surface * \param L The Lua VM state. * \param drawin The drawin object. * \return The number of elements pushed on stack. */ static int luaA_drawin_get_surface(lua_State *L, drawin_t *drawin) { return oocairo_surface_push(L, drawin->surface); } /** Refresh a drawin's content. This has to be called whenever some drawing to * the drawin's surface has been done and should become visible. * \param L The Lua VM state. * \return The number of elements pushed on stack. */ static int luaA_drawin_refresh(lua_State *L) { drawin_t *drawin = luaA_checkudata(L, 1, &drawin_class); drawin_refresh_pixmap(drawin); return 0; } void drawin_class_setup(lua_State *L) { static const struct luaL_reg drawin_methods[] = { LUA_CLASS_METHODS(drawin) { "__call", luaA_drawin_new }, { NULL, NULL } }; static const struct luaL_reg drawin_meta[] = { LUA_OBJECT_META(drawin) LUA_CLASS_META { "geometry", luaA_drawin_geometry }, { "refresh", luaA_drawin_refresh }, { NULL, NULL }, }; luaA_class_setup(L, &drawin_class, "drawin", &window_class, (lua_class_allocator_t) drawin_new, (lua_class_collector_t) drawin_wipe, NULL, luaA_class_index_miss_property, luaA_class_newindex_miss_property, drawin_methods, drawin_meta); luaA_class_add_property(&drawin_class, "surface", NULL, (lua_class_propfunc_t) luaA_drawin_get_surface, NULL); luaA_class_add_property(&drawin_class, "visible", (lua_class_propfunc_t) luaA_drawin_set_visible, (lua_class_propfunc_t) luaA_drawin_get_visible, (lua_class_propfunc_t) luaA_drawin_set_visible); luaA_class_add_property(&drawin_class, "ontop", (lua_class_propfunc_t) luaA_drawin_set_ontop, (lua_class_propfunc_t) luaA_drawin_get_ontop, (lua_class_propfunc_t) luaA_drawin_set_ontop); luaA_class_add_property(&drawin_class, "cursor", (lua_class_propfunc_t) luaA_drawin_set_cursor, (lua_class_propfunc_t) luaA_drawin_get_cursor, (lua_class_propfunc_t) luaA_drawin_set_cursor); luaA_class_add_property(&drawin_class, "x", (lua_class_propfunc_t) luaA_drawin_set_x, (lua_class_propfunc_t) luaA_drawin_get_x, (lua_class_propfunc_t) luaA_drawin_set_x); luaA_class_add_property(&drawin_class, "y", (lua_class_propfunc_t) luaA_drawin_set_y, (lua_class_propfunc_t) luaA_drawin_get_y, (lua_class_propfunc_t) luaA_drawin_set_y); luaA_class_add_property(&drawin_class, "width", (lua_class_propfunc_t) luaA_drawin_set_width, (lua_class_propfunc_t) luaA_drawin_get_width, (lua_class_propfunc_t) luaA_drawin_set_width); luaA_class_add_property(&drawin_class, "height", (lua_class_propfunc_t) luaA_drawin_set_height, (lua_class_propfunc_t) luaA_drawin_get_height, (lua_class_propfunc_t) luaA_drawin_set_height); luaA_class_add_property(&window_class, "bg_color", (lua_class_propfunc_t) luaA_drawin_set_bg_color, (lua_class_propfunc_t) luaA_drawin_get_bg_color, (lua_class_propfunc_t) luaA_drawin_set_bg_color); luaA_class_add_property(&drawin_class, "type", (lua_class_propfunc_t) luaA_window_set_type, (lua_class_propfunc_t) luaA_window_get_type, (lua_class_propfunc_t) luaA_window_set_type); signal_add(&drawin_class.signals, "mouse::enter"); signal_add(&drawin_class.signals, "mouse::leave"); signal_add(&drawin_class.signals, "property::bg_color"); signal_add(&drawin_class.signals, "property::border_width"); signal_add(&drawin_class.signals, "property::cursor"); signal_add(&drawin_class.signals, "property::height"); signal_add(&drawin_class.signals, "property::ontop"); signal_add(&drawin_class.signals, "property::visible"); signal_add(&drawin_class.signals, "property::widgets"); signal_add(&drawin_class.signals, "property::width"); signal_add(&drawin_class.signals, "property::x"); signal_add(&drawin_class.signals, "property::y"); } // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80