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sxiv-like 'start at' option

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Michal Koutenský 2015-11-13 21:54:38 +01:00 committed by Harry Jeffery
parent 33d2d45e4e
commit 0b2be425c3
1 changed files with 21 additions and 3 deletions
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24
src/main.c
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@ -31,13 +31,14 @@ struct {
int stdin;
int recursive;
int actual;
} g_options = {0,0,0,0};
long int start_at;
} g_options = {0,0,0,0,0};
void print_usage(const char* name)
{
fprintf(stdout,
"imv %s\n"
"Usage: %s [-irfah] [images...]\n"
"Usage: %s [-irfah] [-n NUM] [images...]\n"
"\n"
"Flags:\n"
" -i: Read paths from stdin. One path per line.\n"
@ -46,6 +47,9 @@ void print_usage(const char* name)
" -a: Default to images' actual size\n"
" -h: Print this help\n"
"\n"
"Options:\n"
" -n NUM: Starts at picture number NUM.\n"
"\n"
"Mouse:\n"
" Click+Drag to Pan\n"
" MouseWheel to Zoom\n"
@ -88,8 +92,10 @@ void parse_args(int argc, char** argv)
const char* name = argv[0];
char o;
char* end;
long int n;
while((o = getopt(argc, argv, "firah")) != -1) {
while((o = getopt(argc, argv, "firahn:")) != -1) {
switch(o) {
case 'f': g_options.fullscreen = 1; break;
case 'i':
@ -99,6 +105,14 @@ void parse_args(int argc, char** argv)
case 'r': g_options.recursive = 1; break;
case 'a': g_options.actual = 1; break;
case 'h': print_usage(name); exit(0); break;
case 'n':
n = strtol(optarg,&end,0);
if(*end != '\0' || n <= 0) {
fprintf(stderr, "Warning: wrong value for '-n'.\n");
} else {
g_options.start_at = n - 1;
}
break;
case '?':
fprintf(stderr, "Unknown argument '%c'. Aborting.\n", optopt);
exit(1);
@ -189,6 +203,10 @@ int main(int argc, char** argv)
double last_time = SDL_GetTicks() / 1000.0;
for(long int i = 0; i < g_options.start_at; ++i) {
imv_navigator_next_path(&nav);
}
int quit = 0;
while(!quit) {
SDL_Event e;