1/*
2 *  Name:         Graphics functions
3 *
4 *  Purpose:      All the functions that are used to create the Online Signature Image
5 *
6 *  Author:       Pedro de Oliveira <falso@rdk.homeip.net>
7 *
8 *  Copyright (c) 2004-2011 Pedro de Oliveira ( falso@rdk.homeip-net )
9 *
10 *  This file is part of aMule.
11 *
12 *  This program is free software; you can redistribute it and/or modify
13 *  it under the terms of the GNU General Public License as published by
14 *  the Free Software Foundation; either version 2 of the License, or
15 *  (at your option) any later version.
16 *
17 *  This program is distributed in the hope that it will be useful,
18 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
19 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 *  GNU General Public License for more details.
21 *
22 *  You should have received a copy of the GNU General Public License
23 *  along with this program; if not, write to the
24 *  Free Software Foundation, Inc.,
25 *  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
26*/
27
28
29#ifdef __GD__
30
31#include <stdlib.h>
32
33#include <gd.h>
34
35#include "functions.h"
36#include "configfile.h"
37#include "graphics.h"
38
39/*
40 * this is the funcion that writes the text to the image.
41 * almost everything is taken from libgd examples
42 */
43int createimage(CONF *config, char *lines[IMG_TEXTLINES], char *path_for_picture)
44{
45	FILE *in, *out;
46	char *path;
47	gdImagePtr im;
48	int white, i;
49	int brect[8];
50
51	if ( (in = fopen(config->font, "r")) == NULL) {
52		perror("font not found\ncheck casrc\n");
53		return 0;
54	}
55	fclose(in);
56
57	if ( (in = fopen(config->source, "rb")) == NULL) {
58		perror("source_image not found\ncheck casrc\n");
59		return 0;
60	}
61
62	im = gdImageCreateFromPng(in);
63	if( NULL == im) {
64		perror("Error loading source image (not a valid png image file?).\n");
65		return 0;
66	}
67	white = gdImageColorResolve(im, 255, 255, 255);
68
69	for (i = 0; i < IMG_TEXTLINES; i++) {
70		if (config->enabled[i] == 1) {
71			gdImageStringFT(im, &brect[0], white, config->font, config->size,
72					0.0, config->x[i], config->y[i], lines[i]);
73		}
74	}
75
76	if (config->img_type==0) {
77		path = get_amule_path("aMule-online-sign.png", 0, path_for_picture);
78	} else {
79		path = get_amule_path("aMule-online-sign.jpg", 0, path_for_picture);
80	}
81
82	if (path == NULL && config->img_type==0) {
83		perror("could not get PNG path\n");
84		return 0;
85	} else if (path == NULL) {
86		perror("could not get JPG path\n");
87		return 0;
88	}
89	out = fopen(path, "w");
90	free(path);
91
92	if (config->img_type==0) {
93		gdImagePng(im, out);
94	} else {
95		gdImageJpeg(im, out, -1);
96	}
97
98	fclose(out);
99	printf("Online Signature picture created.\n");
100	gdImageDestroy(im);
101
102	return 1;
103}
104
105#endif
106
107