add new prog; some modifications
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f190a3318a
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@ -0,0 +1,184 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <stddef.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <string.h>
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struct color {
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int r;
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int g;
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int b;
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};
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void exec_with_stdout(char *file, char *args[], char *buf, int length) {
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int pfds[2];
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pipe(pfds);
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int status = fork();
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if(status == 0) {
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close(1);
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dup(pfds[1]);
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close(pfds[0]);
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execvp(file, args);
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} else {
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if(!buf) return; /* don't read anything */
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int readin = read(pfds[0], buf, length - 1);
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buf[readin] = '\0';
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}
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}
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void imagemagick(char *filename, char *buffer, int size) {
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char *execargs[] = {
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"convert",
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filename,
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"-resize",
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"25%",
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"-colors",
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"16",
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"-unique-colors",
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"-quiet",
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"txt:-",
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NULL
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};
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char *name = "convert";
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exec_with_stdout(name, execargs, buffer, size);
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}
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struct color *get_raw_colors(char *image) {
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char buf[2048];
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imagemagick(image, (char *)&buf, 2048);
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int hcount = 0;
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char cbuf[3][3];
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static struct color colors[16];
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for(int i = 0; (unsigned int)i < sizeof buf; i++) {
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if(buf[i] == '#') {
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hcount++; /* we have to ignore a comment, that's why there's a special case */
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if(hcount >= 2 && hcount - 2 < 16 && (unsigned int)(i + 6) < sizeof buf) {
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memcpy((char *)&cbuf[0], buf + i + 1, 2);
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memcpy((char *)&cbuf[1], buf + i + 3, 2);
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memcpy((char *)&cbuf[2], buf + i + 5, 2);
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cbuf[0][2] = '\0';
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cbuf[1][2] = '\0';
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cbuf[2][2] = '\0';
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colors[hcount - 2].r = (int)strtol((char *)&cbuf[0], NULL, 16);
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colors[hcount - 2].g = (int)strtol((char *)&cbuf[1], NULL, 16);
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colors[hcount - 2].b = (int)strtol((char *)&cbuf[2], NULL, 16);
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}
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}
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}
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return (struct color *)&colors;
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}
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void blend_color(struct color *a, struct color *b, struct color *c) {
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c->r = (int)(0.5 * a->r + 0.5 * b->r);
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c->g = (int)(0.5 * a->g + 0.5 * b->g);
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c->b = (int)(0.5 * a->b + 0.5 * b->b);
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}
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void darken_color(struct color *a, struct color *b, double percentage) {
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b->r = (int)(a->r * (1 - percentage));
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b->g = (int)(a->g * (1 - percentage));
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b->b = (int)(a->b * (1 - percentage));
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}
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void adjust_colors(struct color *colors) {
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/* #eeeeee */
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struct color e = {238, 238, 238};
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/* if top digit != 0 */
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if(colors[0].r > 15)
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darken_color(&colors[0], &colors[0], 0.40);
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blend_color(&colors[7], &e, &colors[7]);
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darken_color(&colors[7], &colors[8], 0.30);
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blend_color(&colors[15], &e, &colors[15]);
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}
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struct color *get_colors(char *filename) {
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/* check for permission */
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if(access(filename, F_OK | R_OK) != 0) {
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errno = ENOENT;
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return NULL;
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}
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struct color *col = get_raw_colors(filename);
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adjust_colors(col);
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return col;
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}
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char *get_conf_file(char *file) {
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static char buffer[128];
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int extension = 0;
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char *path = getenv("XDG_CONFIG_HOME");
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if(!path) {
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path = getenv("HOME");
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extension = 1;
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}
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if(!path) {
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printf("do you have a $HOME?\n");
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exit(1);
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}
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snprintf(buffer, 128, "%s%s/%s", path, extension ? "/.config/cwal" : "", file);
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return buffer;
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}
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void print_color(struct color *color) {
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printf("#%x%x%x\n", color->r, color->g, color->b);
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}
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void run_handler(struct color *colors) {
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char chars[16][8];
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char *argv[18];
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for(int i = 0; i < 16; i++) {
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snprintf(&chars[i], 8, "#%x%x%x", colors[i].r, colors[i].g, colors[i].b);
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}
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for(int i = 0; i < 16; i++) {
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argv[i + 1] = &chars[i];
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}
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argv[17] = NULL;
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printf("envp[0] = %s\n", argv[1]);
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char *conf = get_conf_file("handler");
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argv[0] = "handler";
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if(access(conf, F_OK | R_OK | X_OK) != 0) {
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printf("couldn't find %s!\n", conf);
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return;
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}
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exec_with_stdout(conf, argv, NULL, 0);
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}
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struct settings {
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int h:1; /* running hooks or not */
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int r:1; /* pick a random wallpaper */
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} settings = {
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.h = 1,
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.r = 1,
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};
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int main(void) {
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struct color *colors = get_colors("/home/usr/.local/share/wallpapers/forest-steps.jpg");
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for(int i = 0; i < 16; i++) {
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print_color(&colors[i]);
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}
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run_handler(colors);
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get_conf_file("hello");
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return 0;
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}
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@ -167,6 +167,7 @@ module *parse_file(char *file) {
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module *current = NULL, *head = NULL;
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int linenumber = 0;
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while((cline = read_line(fp)) != NULL) {
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printf("debug: %s\n", cline);
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linenumber++;
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/* free the string up here */
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if(strlen(cline) == 0) {
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@ -178,8 +179,10 @@ module *parse_file(char *file) {
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continue;
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}
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char *command = strdup(strtok(cline, " "));
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if(!memcmp(command, module_text, sizeof module_text)) {
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char *res = strtok(cline, " ");
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if(!res) printf("strtok returned NULL!\n");
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if(!memcmp(res, module_text, sizeof module_text)) {
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if(current == NULL) {
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current = malloc(sizeof *current);
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head = current;
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@ -216,7 +219,7 @@ module *parse_file(char *file) {
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free(cline);
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continue;
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} else if(!memcmp(command, order_text, sizeof order_text)) {
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} else if(!memcmp(res, order_text, sizeof order_text)) {
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if(mcache) {
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fprintf(stderr, "syntax error at line %i: you can't issue the order command twice\n", linenumber);
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return NULL;
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@ -236,7 +239,7 @@ module *parse_file(char *file) {
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ptr->data = NULL;
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ptr->next = NULL;
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}
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} else if(!memcmp(command, format_text, sizeof format_text)) {
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} else if(!memcmp(res, format_text, sizeof format_text)) {
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char *pattern = cline + sizeof format_text;
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format_string = strdup(pattern);
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}
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