static int get_directory_pathname(struct directory *begin,
struct directory *last,
char *buf, size_t count)
{
struct directory *ptr;
sf_list_iter_t iter;
int nwritten = 0;
if (!sf_list_begin(&fs.directories, &iter)) {
return nwritten;
}
ptr = sf_list_iter_elt(&iter);
while (begin != ptr) {
sf_list_iter_next(&iter);
ptr = sf_list_iter_elt(&iter);
}
do {
int n;
int len;
ptr = sf_list_iter_elt(&iter);
len = strlen(ptr->name) + 1;
n = snprintf(buf, count, "%s/", ptr->name);
nwritten += n;
if (n != len) {
break;
}
buf += n;
count -= n;
} while (ptr != last && sf_list_iter_next(&iter));
return nwritten;
}
static int get_zip_cwd(char *buf, size_t count)
{
sf_list_iter_t iter;
int iszip = 0;
buf[0] = '\0';
if (sf_list_begin(&fs.directories, &iter)) do {
struct directory *d = sf_list_iter_elt(&iter);
if (d->iszip) {
iszip = 1;
break;
}
} while (sf_list_iter_next(&iter));
if (iszip && sf_list_iter_next(&iter)) {
return get_directory_pathname(sf_list_iter_elt(&iter),
sf_list_tail(&fs.directories),
buf, count);
}
return 0;
}
static void ui_toolbox_update_buttons(struct ui_toolbox *tb) {
sf_list_iter_t iter;
float xstep;
float x;
/*
* 假设每个 buttons 的宽度相同，高度和 toolbox 一样。
* 后期改进可以使用权重来计算每个 button 的位置。
*/
xstep = tb->ui.area.w * 1.0f / (sf_list_cnt(&tb->buttons) + 1);
x = xstep;
if (sf_list_begin(&tb->buttons, &iter)) do {
struct ui *button = *(struct ui**) sf_list_iter_elt(&iter);
ui_move(button, x - button->area.w / 2, 0);
x += xstep;
} while (sf_list_iter_next(&iter));
}