guacamole-spice-protocol/src/guacenc/instruction-shade.c

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/*
* Copyright (C) 2016 Glyptodon, Inc.
*
* 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 OR COPYRIGHT HOLDERS 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.
*/
#include "config.h"
#include "display.h"
#include "log.h"
#include <guacamole/client.h>
#include <stdlib.h>
int guacenc_handle_shade(guacenc_display* display, int argc, char** argv) {
/* Verify argument count */
if (argc < 2) {
guacenc_log(GUAC_LOG_WARNING, "\"shade\" instruction incomplete");
return 1;
}
/* Parse arguments */
int index = atoi(argv[0]);
int opacity = atoi(argv[1]);
/* Retrieve requested layer */
guacenc_layer* layer = guacenc_display_get_layer(display, index);
if (layer == NULL)
return 1;
/* Update layer properties */
layer->opacity = opacity;
return 0;
}