cscg24-guacamole

CSCG 2024 Challenge 'Guacamole Mashup'
git clone https://git.sinitax.com/sinitax/cscg24-guacamole
Log | Files | Refs | sfeed.txt

ibar_cursor.c (2937B)

      1/*
      2 * Licensed to the Apache Software Foundation (ASF) under one
      3 * or more contributor license agreements.  See the NOTICE file
      4 * distributed with this work for additional information
      5 * regarding copyright ownership.  The ASF licenses this file
      6 * to you under the Apache License, Version 2.0 (the
      7 * "License"); you may not use this file except in compliance
      8 * with the License.  You may obtain a copy of the License at
      9 *
     10 *   http://www.apache.org/licenses/LICENSE-2.0
     11 *
     12 * Unless required by applicable law or agreed to in writing,
     13 * software distributed under the License is distributed on an
     14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     15 * KIND, either express or implied.  See the License for the
     16 * specific language governing permissions and limitations
     17 * under the License.
     18 */
     19
     20#include "config.h"
     21
     22#include <cairo/cairo.h>
     23#include <guacamole/client.h>
     24#include <guacamole/layer.h>
     25#include <guacamole/protocol.h>
     26#include <guacamole/socket.h>
     27#include <guacamole/user.h>
     28
     29/* Macros for prettying up the embedded image. */
     30#define X 0x00,0x00,0x00,0xFF
     31#define U 0x80,0x80,0x80,0xFF
     32#define O 0xFF,0xFF,0xFF,0xFF
     33#define _ 0x00,0x00,0x00,0x00
     34
     35/* Dimensions */
     36const int guac_common_ibar_cursor_width  = 7;
     37const int guac_common_ibar_cursor_height = 16;
     38
     39/* Format */
     40const cairo_format_t guac_common_ibar_cursor_format = CAIRO_FORMAT_ARGB32;
     41const int guac_common_ibar_cursor_stride = 28;
     42
     43/* Embedded I-bar graphic */
     44unsigned char guac_common_ibar_cursor[] = {
     45
     46        X,X,X,X,X,X,X,
     47        X,O,O,U,O,O,X,
     48        X,X,X,O,X,X,X,
     49        _,_,X,O,X,_,_,
     50        _,_,X,O,X,_,_,
     51        _,_,X,O,X,_,_,
     52        _,_,X,O,X,_,_,
     53        _,_,X,O,X,_,_,
     54        _,_,X,O,X,_,_,
     55        _,_,X,O,X,_,_,
     56        _,_,X,O,X,_,_,
     57        _,_,X,O,X,_,_,
     58        _,_,X,O,X,_,_,
     59        X,X,X,O,X,X,X,
     60        X,O,O,U,O,O,X,
     61        X,X,X,X,X,X,X
     62
     63};
     64
     65void guac_common_set_ibar_cursor(guac_user* user) {
     66
     67    guac_client* client = user->client;
     68    guac_socket* socket = user->socket;
     69
     70    /* Draw to buffer */
     71    guac_layer* cursor = guac_client_alloc_buffer(client);
     72
     73    cairo_surface_t* graphic = cairo_image_surface_create_for_data(
     74            guac_common_ibar_cursor,
     75            guac_common_ibar_cursor_format,
     76            guac_common_ibar_cursor_width,
     77            guac_common_ibar_cursor_height,
     78            guac_common_ibar_cursor_stride);
     79
     80    guac_user_stream_png(user, socket, GUAC_COMP_SRC, cursor,
     81            0, 0, graphic);
     82    cairo_surface_destroy(graphic);
     83
     84    /* Set cursor */
     85    guac_protocol_send_cursor(socket, 0, 0, cursor,
     86            guac_common_ibar_cursor_width / 2,
     87            guac_common_ibar_cursor_height / 2,
     88            guac_common_ibar_cursor_width,
     89            guac_common_ibar_cursor_height);
     90
     91    /* Free buffer */
     92    guac_client_free_buffer(client, cursor);
     93
     94    guac_client_log(client, GUAC_LOG_DEBUG,
     95            "Client cursor image set to generic built-in I-bar.");
     96
     97}
     98