diff options
Diffstat (limited to 'src/xcb_aux.c')
| -rw-r--r-- | src/xcb_aux.c | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/src/xcb_aux.c b/src/xcb_aux.c new file mode 100644 index 0000000..c810398 --- /dev/null +++ b/src/xcb_aux.c @@ -0,0 +1,374 @@ +/* + * Copyright © 2008 Bart Massey <bart@cs.pdx.edu> + * Copyright © 2008 Ian Osgood <iano@quirkster.com> + * Copyright © 2008 Jamey Sharp <jamey@minilop.net> + * Copyright © 2008 Josh Triplett <josh@freedesktop.org> + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Except as contained in this notice, the names of the authors or + * their institutions shall not be used in advertising or otherwise to + * promote the sale, use or other dealings in this Software without + * prior written authorization from the authors. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <xcb/xcb.h> +#include "xcb_aux.h" + +/* Connection related functions */ + +uint8_t +xcb_aux_get_depth (xcb_connection_t *c, + xcb_screen_t *screen) +{ + xcb_drawable_t drawable; + xcb_get_geometry_reply_t *geom; + int depth = 0; + + drawable = screen->root; + geom = xcb_get_geometry_reply (c, xcb_get_geometry(c, drawable), 0); + + if (geom) { + depth = geom->depth; + free (geom); + } + + return depth; +} + +uint8_t +xcb_aux_get_depth_of_visual (xcb_screen_t *screen, + xcb_visualid_t id) +{ + xcb_depth_iterator_t i; + xcb_visualtype_iterator_t j; + for (i = xcb_screen_allowed_depths_iterator(screen); + i.rem; xcb_depth_next(&i)) + for (j = xcb_depth_visuals_iterator(i.data); + j.rem; xcb_visualtype_next(&j)) + if (j.data->visual_id == id) + return i.data->depth; + return 0; +} + +xcb_screen_t * +xcb_aux_get_screen (xcb_connection_t *c, + int screen) +{ + xcb_screen_iterator_t i = xcb_setup_roots_iterator(xcb_get_setup(c)); + for (; i.rem; --screen, xcb_screen_next(&i)) + if (screen == 0) + return i.data; + return 0; +} + +xcb_visualtype_t * +xcb_aux_get_visualtype (xcb_connection_t *c, + int scr, + xcb_visualid_t vid) +{ + xcb_screen_t *screen; + xcb_depth_t *depth; + xcb_visualtype_iterator_t iter; + int cur; + + screen = xcb_aux_get_screen (c, scr); + if (!screen) return NULL; + + depth = xcb_screen_allowed_depths_iterator(screen).data; + if (!depth) return NULL; + + iter = xcb_depth_visuals_iterator(depth); + for (cur = 0 ; cur < iter.rem ; xcb_visualtype_next(&iter), ++cur) + if (vid == iter.data->visual_id) + return iter.data; + + return NULL; +} + +xcb_visualtype_t * +xcb_aux_find_visual_by_id (xcb_screen_t *screen, + xcb_visualid_t id) +{ + xcb_depth_iterator_t i; + xcb_visualtype_iterator_t j; + for (i = xcb_screen_allowed_depths_iterator(screen); + i.rem; xcb_depth_next(&i)) + for (j = xcb_depth_visuals_iterator(i.data); + j.rem; xcb_visualtype_next(&j)) + if (j.data->visual_id == id) + return j.data; + return 0; +} + +xcb_visualtype_t * +xcb_aux_find_visual_by_attrs (xcb_screen_t *screen, + int8_t class, + int8_t depth) +{ + xcb_depth_iterator_t i; + xcb_visualtype_iterator_t j; + for (i = xcb_screen_allowed_depths_iterator(screen); + i.rem; xcb_depth_next(&i)) { + if (depth != -1 && i.data->depth != depth) + continue; + for (j = xcb_depth_visuals_iterator(i.data); + j.rem; xcb_visualtype_next(&j)) + if (class == -1 || j.data->_class == class) + return j.data; + } + return 0; +} + +void +xcb_aux_sync (xcb_connection_t *c) +{ + free(xcb_get_input_focus_reply(c, xcb_get_input_focus(c), NULL)); +} + +/* structs instead of value lists */ +/* TODO: generate the struct types and functions from protocol masks and descriptions */ + +/* This generic implementation of pack_list depends on: + a) structs packed to uint32_t size + b) structs consist of just uint32_t/int32_t fields in the same order as bitmask +*/ + +static void +pack_list( uint32_t mask, const uint32_t *src, uint32_t *dest ) +{ + for ( ; mask; mask >>= 1, src++) + if (mask & 1) + *dest++ = *src; +} + +xcb_void_cookie_t +xcb_aux_create_window (xcb_connection_t *c, + uint8_t depth, + xcb_window_t wid, + xcb_window_t parent, + int16_t x, + int16_t y, + uint16_t width, + uint16_t height, + uint16_t border_width, + uint16_t _class, + xcb_visualid_t visual, + uint32_t mask, + const xcb_params_cw_t *params) +{ + uint32_t value_list[16]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_create_window(c, depth, wid, parent, + x, y, width, height, border_width, + _class, visual, mask, value_list); +} + +xcb_void_cookie_t +xcb_aux_create_window_checked (xcb_connection_t *c, + uint8_t depth, + xcb_window_t wid, + xcb_window_t parent, + int16_t x, + int16_t y, + uint16_t width, + uint16_t height, + uint16_t border_width, + uint16_t _class, + xcb_visualid_t visual, + uint32_t mask, + const xcb_params_cw_t *params) +{ + uint32_t value_list[16]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_create_window_checked(c, depth, wid, parent, + x, y, width, height, border_width, + _class, visual, mask, value_list); +} + +xcb_void_cookie_t +xcb_aux_change_window_attributes_checked (xcb_connection_t *c, + xcb_window_t window, + uint32_t mask, + const xcb_params_cw_t *params) +{ + uint32_t value_list[16]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_change_window_attributes_checked( c, window, mask, value_list ); +} + +xcb_void_cookie_t +xcb_aux_change_window_attributes (xcb_connection_t *c, + xcb_window_t window, + uint32_t mask, + const xcb_params_cw_t *params) +{ + uint32_t value_list[16]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_change_window_attributes( c, window, mask, value_list ); +} + +xcb_void_cookie_t +xcb_aux_configure_window (xcb_connection_t *c, + xcb_window_t window, + uint16_t mask, + const xcb_params_configure_window_t *params) +{ + uint32_t value_list[8]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_configure_window( c, window, mask, value_list ); +} + +xcb_void_cookie_t +xcb_aux_create_gc (xcb_connection_t *c, + xcb_gcontext_t gid, + xcb_drawable_t drawable, + uint32_t mask, + const xcb_params_gc_t *params) +{ + uint32_t value_list[32]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_create_gc( c, gid, drawable, mask, value_list ); +} + +xcb_void_cookie_t +xcb_aux_create_gc_checked (xcb_connection_t *c, + xcb_gcontext_t gid, + xcb_drawable_t drawable, + uint32_t mask, + const xcb_params_gc_t *params) +{ + uint32_t value_list[32]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_create_gc_checked( c, gid, drawable, mask, value_list); +} + +xcb_void_cookie_t +xcb_aux_change_gc (xcb_connection_t *c, + xcb_gcontext_t gc, + uint32_t mask, + const xcb_params_gc_t *params) +{ + uint32_t value_list[32]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_change_gc( c, gc, mask, value_list ); +} + +xcb_void_cookie_t +xcb_aux_change_gc_checked (xcb_connection_t *c, + xcb_gcontext_t gc, + uint32_t mask, + const xcb_params_gc_t *params) +{ + uint32_t value_list[32]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_change_gc_checked( c, gc, mask, value_list ); +} + +xcb_void_cookie_t +xcb_aux_change_keyboard_control (xcb_connection_t *c, + uint32_t mask, + const xcb_params_keyboard_t *params) +{ + uint32_t value_list[16]; + pack_list(mask, (const uint32_t *)params, value_list); + return xcb_change_keyboard_control( c, mask, value_list ); +} + +/* Color related functions */ + +/* Return true if the given color name can be translated locally, + in which case load the components. Otherwise, a lookup_color request + will be needed, so return false. */ +int +xcb_aux_parse_color(char *color_name, + uint16_t *red, uint16_t *green, uint16_t *blue) +{ + int n, r, g, b, i; + if (!color_name || *color_name != '#') + return 0; + /* + * Excitingly weird RGB parsing code from Xlib. + */ + n = strlen (color_name); + color_name++; + n--; + if (n != 3 && n != 6 && n != 9 && n != 12) + return 0; + n /= 3; + g = b = 0; + do { + r = g; + g = b; + b = 0; + for (i = n; --i >= 0; ) { + char c = *color_name++; + b <<= 4; + if (c >= '0' && c <= '9') + b |= c - '0'; + else if (c >= 'A' && c <= 'F') + b |= c - ('A' - 10); + else if (c >= 'a' && c <= 'f') + b |= c - ('a' - 10); + else return 0; + } + } while (*color_name != '\0'); + n <<= 2; + n = 16 - n; + *red = r << n; + *green = g << n; + *blue = b << n; + return 1; +} + +/* Drawing related functions */ + +/* Adapted from Xlib */ +xcb_void_cookie_t +xcb_aux_set_line_attributes_checked (xcb_connection_t *dpy, + xcb_gcontext_t gc, + uint16_t linewidth, + int32_t linestyle, + int32_t capstyle, + int32_t joinstyle) +{ + uint32_t mask = 0; + xcb_params_gc_t gv; + + XCB_AUX_ADD_PARAM(&mask, &gv, line_width, linewidth); + XCB_AUX_ADD_PARAM(&mask, &gv, line_style, linestyle); + XCB_AUX_ADD_PARAM(&mask, &gv, cap_style, capstyle); + XCB_AUX_ADD_PARAM(&mask, &gv, join_style, joinstyle); + return xcb_aux_change_gc_checked(dpy, gc, mask, &gv); +} + +/* Adapted from Xlib */ +/* XXX It would be wiser for apps just to call + clear_area() directly. */ +xcb_void_cookie_t +xcb_aux_clear_window(xcb_connection_t * dpy, + xcb_window_t w) +{ + return xcb_clear_area(dpy, 0, w, 0, 0, 0, 0); +} |