X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=src%2Fxcb.c;h=cb0c29f16b545414c0971f3b3b34412f32a80135;hb=34f6f185bfe9476801e6ef45114197becefb0b21;hp=2c194013b09172d2fc784c11dfc3362569e053fe;hpb=22bac9fd9a6b3a2bf12aea124c519e2c9f22f855;p=i3%2Fi3 diff --git a/src/xcb.c b/src/xcb.c index 2c194013..cb0c29f1 100644 --- a/src/xcb.c +++ b/src/xcb.c @@ -1,114 +1,45 @@ +#undef I3__FILE__ +#define I3__FILE__ "xcb.c" /* * vim:ts=4:sw=4:expandtab * * i3 - an improved dynamic tiling window manager - * - * © 2009-2010 Michael Stapelberg and contributors - * - * See file LICENSE for license information. + * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE) * * xcb.c: Helper functions for easier usage of XCB * */ - #include "all.h" -TAILQ_HEAD(cached_fonts_head, Font) cached_fonts = TAILQ_HEAD_INITIALIZER(cached_fonts); unsigned int xcb_numlock_mask; -/* - * Loads a font for usage, also getting its height. If fallback is true, - * i3 loads 'fixed' or '-misc-*' if the font cannot be found instead of - * exiting. - * - */ -i3Font load_font(const char *pattern, bool fallback) { - i3Font new; - xcb_void_cookie_t font_cookie; - xcb_list_fonts_with_info_cookie_t info_cookie; - - /* Send all our requests first */ - new.id = xcb_generate_id(conn); - font_cookie = xcb_open_font_checked(conn, new.id, strlen(pattern), pattern); - info_cookie = xcb_list_fonts_with_info(conn, 1, strlen(pattern), pattern); - - /* Check for errors. If errors, fall back to default font. */ - xcb_generic_error_t *error = xcb_request_check(conn, font_cookie); - - /* If we fail to open font, fall back to 'fixed'. If opening 'fixed' fails fall back to '-misc-*' */ - if (error != NULL) { - ELOG("Could not open font %s (X error %d). Reverting to backup font.\n", pattern, error->error_code); - pattern = "fixed"; - font_cookie = xcb_open_font_checked(conn, new.id, strlen(pattern), pattern); - info_cookie = xcb_list_fonts_with_info(conn, 1, strlen(pattern), pattern); - - /* Check if we managed to open 'fixed' */ - xcb_generic_error_t *error = xcb_request_check(conn, font_cookie); - - /* Fall back to '-misc-*' if opening 'fixed' fails. */ - if (error != NULL) { - ELOG("Could not open fallback font '%s', trying with '-misc-*'\n",pattern); - pattern = "-misc-*"; - font_cookie = xcb_open_font_checked(conn, new.id, strlen(pattern), pattern); - info_cookie = xcb_list_fonts_with_info(conn, 1, strlen(pattern), pattern); - - check_error(conn, font_cookie, "Could open neither requested font nor fallback (fixed or -misc-*"); - } - } - - /* Get information (height/name) for this font */ - xcb_list_fonts_with_info_reply_t *reply = xcb_list_fonts_with_info_reply(conn, info_cookie, NULL); - exit_if_null(reply, "Could not load font \"%s\"\n", pattern); - - new.height = reply->font_ascent + reply->font_descent; - - free(reply); - - return new; -} - -/* - * Returns the colorpixel to use for the given hex color (think of HTML). - * - * The hex_color has to start with #, for example #FF00FF. - * - * NOTE that get_colorpixel() does _NOT_ check the given color code for validity. - * This has to be done by the caller. - * - */ -uint32_t get_colorpixel(char *hex) { - char strgroups[3][3] = {{hex[1], hex[2], '\0'}, - {hex[3], hex[4], '\0'}, - {hex[5], hex[6], '\0'}}; - uint32_t rgb16[3] = {(strtol(strgroups[0], NULL, 16)), - (strtol(strgroups[1], NULL, 16)), - (strtol(strgroups[2], NULL, 16))}; - - return (rgb16[0] << 16) + (rgb16[1] << 8) + rgb16[2]; -} - /* * Convenience wrapper around xcb_create_window which takes care of depth, generating an ID and checking * for errors. * */ -xcb_window_t create_window(xcb_connection_t *conn, Rect dims, uint16_t window_class, - enum xcursor_cursor_t cursor, bool map, uint32_t mask, uint32_t *values) { +xcb_window_t create_window(xcb_connection_t *conn, Rect dims, + uint16_t depth, xcb_visualid_t visual, uint16_t window_class, + enum xcursor_cursor_t cursor, bool map, uint32_t mask, uint32_t *values) { xcb_window_t result = xcb_generate_id(conn); - /* If the window class is XCB_WINDOW_CLASS_INPUT_ONLY, depth has to be 0 */ - uint16_t depth = (window_class == XCB_WINDOW_CLASS_INPUT_ONLY ? 0 : XCB_COPY_FROM_PARENT); + /* If the window class is XCB_WINDOW_CLASS_INPUT_ONLY, we copy depth and + * visual id from the parent window. */ + if (window_class == XCB_WINDOW_CLASS_INPUT_ONLY) { + depth = XCB_COPY_FROM_PARENT; + visual = XCB_COPY_FROM_PARENT; + } xcb_create_window(conn, - depth, - result, /* the window id */ - root, /* parent == root */ - dims.x, dims.y, dims.width, dims.height, /* dimensions */ - 0, /* border = 0, we draw our own */ - window_class, - XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */ - mask, - values); + depth, + result, /* the window id */ + root, /* parent == root */ + dims.x, dims.y, dims.width, dims.height, /* dimensions */ + 0, /* border = 0, we draw our own */ + window_class, + visual, + mask, + values); /* Set the cursor */ if (xcursor_supported) { @@ -119,8 +50,9 @@ xcb_window_t create_window(xcb_connection_t *conn, Rect dims, uint16_t window_cl xcb_cursor_t cursor_id = xcb_generate_id(conn); i3Font cursor_font = load_font("cursor", false); int xcb_cursor = xcursor_get_xcb_cursor(cursor); - xcb_create_glyph_cursor(conn, cursor_id, cursor_font.id, cursor_font.id, - xcb_cursor, xcb_cursor + 1, 0, 0, 0, 65535, 65535, 65535); + xcb_create_glyph_cursor(conn, cursor_id, cursor_font.specific.xcb.id, + cursor_font.specific.xcb.id, xcb_cursor, xcb_cursor + 1, 0, 0, 0, + 65535, 65535, 65535); xcb_change_window_attributes(conn, result, XCB_CW_CURSOR, &cursor_id); xcb_free_cursor(conn, cursor_id); } @@ -132,23 +64,15 @@ xcb_window_t create_window(xcb_connection_t *conn, Rect dims, uint16_t window_cl return result; } -/* - * Changes a single value in the graphic context (so one doesn’t have to define an array of values) - * - */ -void xcb_change_gc_single(xcb_connection_t *conn, xcb_gcontext_t gc, uint32_t mask, uint32_t value) { - xcb_change_gc(conn, gc, mask, &value); -} - /* * Draws a line from x,y to to_x,to_y using the given color * */ void xcb_draw_line(xcb_connection_t *conn, xcb_drawable_t drawable, xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x, uint32_t y, uint32_t to_x, uint32_t to_y) { - xcb_change_gc_single(conn, gc, XCB_GC_FOREGROUND, colorpixel); - xcb_point_t points[] = {{x, y}, {to_x, to_y}}; - xcb_poly_line(conn, XCB_COORD_MODE_ORIGIN, drawable, gc, 2, points); + xcb_change_gc(conn, gc, XCB_GC_FOREGROUND, (uint32_t[]) {colorpixel}); + xcb_poly_line(conn, XCB_COORD_MODE_ORIGIN, drawable, gc, 2, + (xcb_point_t[]) {{x, y}, {to_x, to_y}}); } /* @@ -157,50 +81,18 @@ void xcb_draw_line(xcb_connection_t *conn, xcb_drawable_t drawable, xcb_gcontext */ void xcb_draw_rect(xcb_connection_t *conn, xcb_drawable_t drawable, xcb_gcontext_t gc, uint32_t colorpixel, uint32_t x, uint32_t y, uint32_t width, uint32_t height) { - xcb_change_gc_single(conn, gc, XCB_GC_FOREGROUND, colorpixel); + xcb_change_gc(conn, gc, XCB_GC_FOREGROUND, (uint32_t[]) {colorpixel}); xcb_rectangle_t rect = {x, y, width, height}; xcb_poly_fill_rectangle(conn, drawable, gc, 1, &rect); } -/* - * Generates a configure_notify event and sends it to the given window - * Applications need this to think they’ve configured themselves correctly. - * The truth is, however, that we will manage them. - * - */ -void fake_configure_notify(xcb_connection_t *conn, Rect r, xcb_window_t window) { - /* Every X11 event is 32 bytes long. Therefore, XCB will copy 32 bytes. - * In order to properly initialize these bytes, we allocate 32 bytes even - * though we only need less for an xcb_configure_notify_event_t */ - void *event = scalloc(32); - xcb_configure_notify_event_t *generated_event = event; - - generated_event->event = window; - generated_event->window = window; - generated_event->response_type = XCB_CONFIGURE_NOTIFY; - - generated_event->x = r.x; - generated_event->y = r.y; - generated_event->width = r.width; - generated_event->height = r.height; - - generated_event->border_width = 0; - generated_event->above_sibling = XCB_NONE; - generated_event->override_redirect = false; - - xcb_send_event(conn, false, window, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char*)generated_event); - xcb_flush(conn); - - free(event); -} - /* * Generates a configure_notify_event with absolute coordinates (relative to the X root * window, not to the client’s frame) for the given client. * */ void fake_absolute_configure_notify(Con *con) { - Rect absolute; + xcb_rectangle_t absolute; if (con->window == NULL) return; @@ -211,14 +103,14 @@ void fake_absolute_configure_notify(Con *con) { DLOG("fake rect = (%d, %d, %d, %d)\n", absolute.x, absolute.y, absolute.width, absolute.height); - fake_configure_notify(conn, absolute, con->window->id); + fake_configure_notify(conn, absolute, con->window->id, con->border_width); } /* * Sends the WM_TAKE_FOCUS ClientMessage to the given window * */ -void send_take_focus(xcb_window_t window) { +void send_take_focus(xcb_window_t window, xcb_timestamp_t timestamp) { /* Every X11 event is 32 bytes long. Therefore, XCB will copy 32 bytes. * In order to properly initialize these bytes, we allocate 32 bytes even * though we only need less for an xcb_configure_notify_event_t */ @@ -230,102 +122,22 @@ void send_take_focus(xcb_window_t window) { ev->type = A_WM_PROTOCOLS; ev->format = 32; ev->data.data32[0] = A_WM_TAKE_FOCUS; - ev->data.data32[1] = XCB_CURRENT_TIME; + ev->data.data32[1] = timestamp; DLOG("Sending WM_TAKE_FOCUS to the client\n"); - xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char*)ev); + xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char *)ev); free(event); } -/* - * Finds out which modifier mask is the one for numlock, as the user may change this. - * - */ -void xcb_get_numlock_mask(xcb_connection_t *conn) { - xcb_key_symbols_t *keysyms; - xcb_get_modifier_mapping_cookie_t cookie; - xcb_get_modifier_mapping_reply_t *reply; - xcb_keycode_t *modmap; - int mask, i; - const int masks[8] = { XCB_MOD_MASK_SHIFT, - XCB_MOD_MASK_LOCK, - XCB_MOD_MASK_CONTROL, - XCB_MOD_MASK_1, - XCB_MOD_MASK_2, - XCB_MOD_MASK_3, - XCB_MOD_MASK_4, - XCB_MOD_MASK_5 }; - - /* Request the modifier map */ - cookie = xcb_get_modifier_mapping(conn); - - /* Get the keysymbols */ - keysyms = xcb_key_symbols_alloc(conn); - - if ((reply = xcb_get_modifier_mapping_reply(conn, cookie, NULL)) == NULL) { - xcb_key_symbols_free(keysyms); - return; - } - - modmap = xcb_get_modifier_mapping_keycodes(reply); - - /* Get the keycode for numlock */ -#ifdef OLD_XCB_KEYSYMS_API - xcb_keycode_t numlock = xcb_key_symbols_get_keycode(keysyms, XCB_NUM_LOCK); -#else - /* For now, we only use the first keysymbol. */ - xcb_keycode_t *numlock_syms = xcb_key_symbols_get_keycode(keysyms, XCB_NUM_LOCK); - if (numlock_syms == NULL) - return; - xcb_keycode_t numlock = *numlock_syms; - free(numlock_syms); -#endif - - /* Check all modifiers (Mod1-Mod5, Shift, Control, Lock) */ - for (mask = 0; mask < 8; mask++) - for (i = 0; i < reply->keycodes_per_modifier; i++) - if (modmap[(mask * reply->keycodes_per_modifier) + i] == numlock) - xcb_numlock_mask = masks[mask]; - - xcb_key_symbols_free(keysyms); - free(reply); -} - /* * Raises the given window (typically client->frame) above all other windows * */ void xcb_raise_window(xcb_connection_t *conn, xcb_window_t window) { - uint32_t values[] = { XCB_STACK_MODE_ABOVE }; + uint32_t values[] = {XCB_STACK_MODE_ABOVE}; xcb_configure_window(conn, window, XCB_CONFIG_WINDOW_STACK_MODE, values); } -/* - * Query the width of the given text (16-bit characters, UCS) with given real - * length (amount of glyphs) using the given font. - * - */ -int predict_text_width(char *text, int length) { - xcb_query_text_extents_cookie_t cookie; - xcb_query_text_extents_reply_t *reply; - xcb_generic_error_t *error; - int width; - - cookie = xcb_query_text_extents(conn, config.font.id, length, (xcb_char2b_t*)text); - if ((reply = xcb_query_text_extents_reply(conn, cookie, &error)) == NULL) { - ELOG("Could not get text extents (X error code %d)\n", - error->error_code); - /* We return the rather safe guess of 7 pixels, because a - * rendering error is better than a crash. Plus, the user will - * see the error in his log. */ - return 7; - } - - width = reply->overall_width; - free(reply); - return width; -} - /* * Configures the given window to have the size/position specified by given rect * @@ -333,11 +145,11 @@ int predict_text_width(char *text, int length) { void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r) { xcb_void_cookie_t cookie; cookie = xcb_configure_window(conn, window, - XCB_CONFIG_WINDOW_X | - XCB_CONFIG_WINDOW_Y | - XCB_CONFIG_WINDOW_WIDTH | - XCB_CONFIG_WINDOW_HEIGHT, - &(r.x)); + XCB_CONFIG_WINDOW_X | + XCB_CONFIG_WINDOW_Y | + XCB_CONFIG_WINDOW_WIDTH | + XCB_CONFIG_WINDOW_HEIGHT, + &(r.x)); /* ignore events which are generated because we configured a window */ add_ignore_event(cookie.sequence, -1); } @@ -359,5 +171,77 @@ bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom) { return true; return false; +} +/** + * Moves the mouse pointer into the middle of rect. + * + */ +void xcb_warp_pointer_rect(xcb_connection_t *conn, Rect *rect) { + int mid_x = rect->x + (rect->width / 2); + int mid_y = rect->y + (rect->height / 2); + + LOG("warp pointer to: %d %d\n", mid_x, mid_y); + xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0, mid_x, mid_y); +} + +/* + * Set the cursor of the root window to the given cursor id. + * This function should only be used if xcursor_supported == false. + * Otherwise, use xcursor_set_root_cursor(). + * + */ +void xcb_set_root_cursor(int cursor) { + xcb_cursor_t cursor_id = xcb_generate_id(conn); + i3Font cursor_font = load_font("cursor", false); + int xcb_cursor = xcursor_get_xcb_cursor(cursor); + xcb_create_glyph_cursor(conn, cursor_id, cursor_font.specific.xcb.id, + cursor_font.specific.xcb.id, xcb_cursor, xcb_cursor + 1, 0, 0, 0, + 65535, 65535, 65535); + xcb_change_window_attributes(conn, root, XCB_CW_CURSOR, &cursor_id); + xcb_free_cursor(conn, cursor_id); + xcb_flush(conn); +} + +/* + * Get depth of visual specified by visualid + * + */ +uint16_t get_visual_depth(xcb_visualid_t visual_id) { + xcb_depth_iterator_t depth_iter; + + depth_iter = xcb_screen_allowed_depths_iterator(root_screen); + for (; depth_iter.rem; xcb_depth_next(&depth_iter)) { + xcb_visualtype_iterator_t visual_iter; + + visual_iter = xcb_depth_visuals_iterator(depth_iter.data); + for (; visual_iter.rem; xcb_visualtype_next(&visual_iter)) { + if (visual_id == visual_iter.data->visual_id) { + return depth_iter.data->depth; + } + } + } + return 0; +} + +/* + * Get visualid with specified depth + * + */ +xcb_visualid_t get_visualid_by_depth(uint16_t depth) { + xcb_depth_iterator_t depth_iter; + + depth_iter = xcb_screen_allowed_depths_iterator(root_screen); + for (; depth_iter.rem; xcb_depth_next(&depth_iter)) { + if (depth_iter.data->depth != depth) + continue; + + xcb_visualtype_iterator_t visual_iter; + + visual_iter = xcb_depth_visuals_iterator(depth_iter.data); + if (!visual_iter.rem) + continue; + return visual_iter.data->visual_id; + } + return 0; }