/*
- * vim:ts=8:expandtab
+ * vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
- *
- * © 2009 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 <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include "all.h"
-#include <xcb/xcb.h>
+unsigned int xcb_numlock_mask;
-#include "util.h"
+/*
+ * 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 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);
+
+ 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);
+
+ /* Set the cursor */
+ if (xcursor_supported) {
+ mask = XCB_CW_CURSOR;
+ values[0] = xcursor_get_cursor(cursor);
+ xcb_change_window_attributes(conn, result, mask, values);
+ } else {
+ 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_change_window_attributes(conn, result, XCB_CW_CURSOR, &cursor_id);
+ xcb_free_cursor(conn, cursor_id);
+ }
+
+ /* Map the window (= make it visible) */
+ if (map)
+ xcb_map_window(conn, result);
+
+ return result;
+}
/*
- * Returns the colorpixel to use for the given hex color (think of HTML).
+ * Draws a line from x,y to to_x,to_y using the given color
*
- * The hex_color has to start with #, for example #FF00FF.
+ */
+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(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} });
+}
+
+/*
+ * Draws a rectangle from x,y with width,height using the given color
*
- * The client argument is optional. If it is given, the colorpixel will be cached.
+ */
+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(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 with absolute coordinates (relative to the X root
+ * window, not to the client’s frame) for the given client.
*
- * NOTE that get_colorpixel() does _NOT_ check the given color code for validity.
- * This has to be done by the caller.
+ */
+void fake_absolute_configure_notify(Con *con) {
+ xcb_rectangle_t absolute;
+ if (con->window == NULL)
+ return;
+
+ absolute.x = con->rect.x + con->window_rect.x;
+ absolute.y = con->rect.y + con->window_rect.y;
+ absolute.width = con->window_rect.width;
+ absolute.height = con->window_rect.height;
+
+ DLOG("fake rect = (%d, %d, %d, %d)\n", absolute.x, absolute.y, absolute.width, absolute.height);
+
+ fake_configure_notify(conn, absolute, con->window->id, con->border_width);
+}
+
+/*
+ * Sends the WM_TAKE_FOCUS ClientMessage to the given window
*
*/
-uint32_t get_colorpixel(xcb_connection_t *conn, Client *client, xcb_window_t window, char *hex) {
- /* Lookup this colorpixel in the cache if a client was specified */
- if (client != NULL) {
- struct Colorpixel *pixel;
- SLIST_FOREACH(pixel, &(client->colorpixels), colorpixels)
- if (strcmp(pixel->hex, hex) == 0)
- return pixel->pixel;
- }
- #define RGB_8_TO_16(i) (65535 * ((i) & 0xFF) / 255)
- char strgroups[3][3] = {{hex[1], hex[2], '\0'},
- {hex[3], hex[4], '\0'},
- {hex[5], hex[6], '\0'}};
- int rgb16[3] = {RGB_8_TO_16(strtol(strgroups[0], NULL, 16)),
- RGB_8_TO_16(strtol(strgroups[1], NULL, 16)),
- RGB_8_TO_16(strtol(strgroups[2], NULL, 16))};
-
- xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
-
- xcb_colormap_t colormap_id = xcb_generate_id(conn);
- xcb_void_cookie_t cookie = xcb_create_colormap_checked(conn, XCB_COLORMAP_ALLOC_NONE,
- colormap_id, window, root_screen->root_visual);
- check_error(conn, cookie, "Could not create colormap");
- xcb_alloc_color_reply_t *reply = xcb_alloc_color_reply(conn,
- xcb_alloc_color(conn, colormap_id, rgb16[0], rgb16[1], rgb16[2]), NULL);
-
- if (!reply) {
- printf("Could not allocate color\n");
- exit(1);
- }
-
- uint32_t pixel = reply->pixel;
- free(reply);
- xcb_free_colormap(conn, colormap_id);
-
- /* Store the result in the cache if a client was specified */
- if (client != NULL) {
- struct Colorpixel *cache_pixel = scalloc(sizeof(struct Colorpixel));
- cache_pixel->hex = sstrdup(hex);
- cache_pixel->pixel = pixel;
-
- SLIST_INSERT_HEAD(&(client->colorpixels), cache_pixel, colorpixels);
- }
-
- return pixel;
+void send_take_focus(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_client_message_event_t *ev = event;
+
+ ev->response_type = XCB_CLIENT_MESSAGE;
+ ev->window = window;
+ ev->type = A_WM_PROTOCOLS;
+ ev->format = 32;
+ ev->data.data32[0] = A_WM_TAKE_FOCUS;
+ ev->data.data32[1] = XCB_CURRENT_TIME;
+
+ DLOG("Sending WM_TAKE_FOCUS to the client\n");
+ xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char*)ev);
+ free(event);
}
/*
- * Convenience wrapper around xcb_create_window which takes care of depth, generating an ID and checking
- * for errors.
+ * Raises the given window (typically client->frame) above all other windows
*
*/
-xcb_window_t create_window(xcb_connection_t *conn, Rect dims, uint16_t window_class, uint32_t mask, uint32_t *values) {
- xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
- xcb_window_t result = xcb_generate_id(conn);
- xcb_void_cookie_t cookie;
-
- /* 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);
-
- cookie = xcb_create_window_checked(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);
- check_error(conn, cookie, "Could not create window");
-
- /* Map the window (= make it visible) */
- xcb_map_window(conn, result);
+void xcb_raise_window(xcb_connection_t *conn, xcb_window_t window) {
+ uint32_t values[] = { XCB_STACK_MODE_ABOVE };
+ xcb_configure_window(conn, window, XCB_CONFIG_WINDOW_STACK_MODE, values);
+}
- return result;
+/*
+ * 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;
}
/*
- * Changes a single value in the graphic context (so one doesn’t have to define an array of values)
+ * Configures the given window to have the size/position specified by given rect
*
*/
-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);
+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));
+ /* ignore events which are generated because we configured a window */
+ add_ignore_event(cookie.sequence, -1);
}
/*
- * Draws a line from x,y to to_x,to_y using the given color
+ * Returns true if the given reply contains the given atom.
*
*/
-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);
+bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom) {
+ if (prop == NULL || xcb_get_property_value_length(prop) == 0)
+ return false;
+
+ xcb_atom_t *atoms;
+ if ((atoms = xcb_get_property_value(prop)) == NULL)
+ return false;
+
+ for (int i = 0; i < xcb_get_property_value_length(prop) / (prop->format / 8); i++)
+ if (atoms[i] == 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);
}
/*
- * Draws a rectangle from x,y with width,height using the given color
+ * 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_draw_rect(xcb_connection_t *connection, 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(connection, gc, XCB_GC_FOREGROUND, colorpixel);
- xcb_rectangle_t rect = {x, y, width, height};
- xcb_poly_fill_rectangle(connection, drawable, gc, 1, &rect);
+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.id, cursor_font.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);
}
projects / i3 / i3 / blobdiff