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Write thumbnail cache files on exit

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This commit is contained in:
Bert
2011-04-07 14:33:57 +02:00
parent 83bdf67d51
commit c21a3e3f28
3 changed files with 156 additions and 2 deletions
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71
thumbs.c
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@ -18,6 +18,7 @@
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
@ -292,6 +293,9 @@ int tns_translate(tns_t *tns, int x, int y) {
return -1;
}
/* thumbnail caching */
int tns_cache_enabled() {
int len, ret = 0;
char *cpath, *homedir;
@ -309,5 +313,70 @@ int tns_cache_enabled() {
return ret;
}
void tns_cache_write(thumb_t *t, Bool force) {
char* tns_cache_filename(const char *filename) {
size_t len;
int i;
char *cfile, *abspath, *homedir;
if (!filename)
return NULL;
if (!(homedir = getenv("HOME")))
return NULL;
if (*filename != '/') {
if (!(abspath = absolute_path(filename)))
return NULL;
} else {
abspath = (char*) s_malloc(strlen(filename) + 1);
strcpy(abspath, filename);
}
len = strlen(abspath);
for (i = 1; i < len; ++i) {
if (abspath[i] == '/')
abspath[i] = '%';
}
len += strlen(homedir) + 15;
cfile = (char*) s_malloc(len);
snprintf(cfile, len, "%s/.sxiv/%s.png", homedir, abspath + 1);
free(abspath);
return cfile;
}
void tns_cache_write(thumb_t *t, Bool force) {
char *cfile;
struct stat cstats, fstats;
struct timeval times[2];
Imlib_Load_Error err;
if (!t || !t->im || !t->filename)
return;
if ((cfile = tns_cache_filename(t->filename))) {
if (stat(t->filename, &fstats))
goto end;
if (force || stat(cfile, &cstats) ||
cstats.st_mtim.tv_sec != fstats.st_mtim.tv_sec ||
cstats.st_mtim.tv_nsec != fstats.st_mtim.tv_nsec)
{
imlib_context_set_image(t->im);
imlib_image_set_format("png");
imlib_save_image_with_error_return(cfile, &err);
if (err) {
warn("could not cache thumbnail:", t->filename);
} else {
TIMESPEC_TO_TIMEVAL(&times[0], &fstats.st_atim);
TIMESPEC_TO_TIMEVAL(&times[1], &fstats.st_mtim);
utimes(cfile, times);
}
}
}
end:
free(cfile);
}