static int fs_cd_file(const char *filename)
{
struct directory d;
if (is_cwd_zip()) {
return fs_cd_file_zip(sf_list_tail(&fs.directories), filename);
}
if (strcmp(filename, "..") == 0) {
if (sf_list_cnt(&fs.directories)) {
sf_list_pop(&fs.directories);
}
return chdir("..");
} else {
if (directory_init(&d, filename) != SF_OK) {
return SF_ERR;
}
sf_list_push(&fs.directories, &d);
if (!d.iszip) {
return chdir(filename);
}
}
return SF_OK;
}
static int is_cwd_zip(void)
{
if (sf_list_cnt(&fs.directories)) {
struct directory *d;
d = sf_list_tail(&fs.directories);
if (d->iszip) {
return 1;
}
}
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));
}
int fs_file_walker(int (*func)(int type, const char *filename, void *arg),
void *arg)
{
int ret = SF_OK;
struct directory *d;
if (sf_list_cnt(&fs.directories) == 0) {
return SF_OK;
}
d = sf_list_tail(&fs.directories);
if (!d->isopened) {
if ((ret = directory_open(d)) != SF_OK) {
return ret;
}
}
if (!d->iszip) {
return fs_file_walker_dir(d, func, arg);
} else {
return fs_file_walker_zip(d, func, arg);
}
}