void
FileList::update_layout()
{
hspace = rect.get_width()/2;
vspace = 20;
num_pages = static_cast<int>(directory.size()) / items_per_page();
if ((static_cast<int>(directory.size()) % items_per_page()) != 0 || num_pages == 0)
num_pages += 1;
if (page >= num_pages)
page = num_pages-1;
}
void
FileList::draw(DrawingContext& gc)
{
GUIStyle::draw_lowered_box(gc, rect, Color(255, 255, 255));
int end = (page+1) * items_per_page();
if (end > int(directory.size()))
end = static_cast<int>(directory.size());
int x = rect.left;
int y = rect.top;
for(System::Directory::iterator i = directory.begin() + page * items_per_page();
i != directory.begin() + end; ++i)
{
if (i->type == System::DE_DIRECTORY)
gc.draw(directory_icon, Vector2i(x, y));
else if (i->type == System::DE_FILE)
gc.draw(file_icon, Vector2i(x, y));
if ((click_item == -1 && (i - directory.begin()) == current_item) ||
(i - directory.begin()) == click_item)
{
if (click_item == current_item)
gc.draw_fillrect(Rect(x, y, x + hspace, y + vspace), Color(0, 0, 255));
else
gc.draw_rect(Rect(x, y, x + hspace, y + vspace), Color(0, 0, 255));
}
gc.print_left(Fonts::verdana11, Vector2i(x + 4, y + 3),
((i->type == System::DE_DIRECTORY) ? "[DIR] " : "[FILE] ") + i->name);
y += 20;
if (y > rect.bottom - vspace)
{
y = rect.top;
x += hspace;
}
}
}
void
FileList::on_pointer_move (int x, int y)
{
x = x - rect.left;
y = y - rect.top;
current_item = Math::clamp(0, y / vspace, rect.get_height() / vspace - 1)
+ Math::clamp(0, x / hspace, rect.get_width() / hspace - 1) * (rect.get_height()/vspace);
current_item += page * items_per_page();
if (current_item < 0 || current_item >= int(directory.size()))
current_item = -1;
}
void
FileList::set_directory(const std::string& pathname, const std::string& pattern)
{
m_direction = pathname;
try
{
directory = System::opendir(pathname, pattern);
}
catch(const std::exception& err)
{
log_error("%1%", err.what());
directory.clear();
}
directory.push_back(System::DirectoryEntry("..", System::DE_DIRECTORY));
std::sort(directory.begin(), directory.end(), DirectorySorter());
num_pages = static_cast<int>(directory.size()) / items_per_page();
if ((static_cast<int>(directory.size()) % items_per_page()) != 0 || num_pages == 0)
num_pages += 1;
page = 0;
}
void set_items_per_page(unsigned n) {
items_per_page_ = n;
page_count_ = (count() / items_per_page()) +
(count() % items_per_page() ? 1 : 0);
}
//! Offset of the current selection relative to the start of the
//! current page.
unsigned page_offset() const {
return current_index_ - page() * items_per_page();
}
//! Get the index of the end of the current page.
unsigned page_end_index() const {
return std::min(count(), page_begin_index() + items_per_page());
}
//! Take ownership of the strings (move).
void set_items(string_container&& strings) {
items_ = std::move(strings);
page_count_ = (count() / items_per_page()) +
(count() % items_per_page() ? 1 : 0);
}
