bsnes-libretro/nall/config.hpp
Tim Allen 0b923489dd Update to 20160106 OS X Preview for Developers release.
byuu says:

New update. Most of the work today went into eliminating hiro::Image
from all objects in all ports, replacing with nall::image. That took an
eternity.

Changelog:
- fixed crashing bug when loading games [thanks endrift!!]
- toggling "show status bar" option adjusts window geometry (not
  supposed to recenter the window, though)
- button sizes improved; icon-only button icons no longer being cut off
2016-01-07 19:17:15 +11:00

113 lines
3.1 KiB
C++

#pragma once
#include <nall/platform.hpp>
#include <nall/file.hpp>
#include <nall/string.hpp>
namespace nall {
namespace Configuration {
struct Node {
string name;
string desc;
enum class Type : unsigned { Null, Boolean, Integer, Natural, Double, String } type = Type::Null;
void* data = nullptr;
vector<Node> children;
auto empty() const -> bool {
return data == nullptr;
}
auto get() const -> string {
switch(type) {
case Type::Boolean: return {*(bool*)data};
case Type::Integer: return {*(int*)data};
case Type::Natural: return {*(uint*)data};
case Type::Double: return {*(double*)data};
case Type::String: return {*(string*)data};
}
return "";
}
auto set(const string& value) -> void {
switch(type) {
case Type::Boolean: *(bool*)data = (value != "false"); break;
case Type::Integer: *(int*)data = integer(value); break;
case Type::Natural: *(uint*)data = natural(value); break;
case Type::Double: *(double*)data = real(value); break;
case Type::String: *(string*)data = value; break;
}
}
auto assign() { type = Type::Null; data = nullptr; }
auto assign(bool& bind) { type = Type::Boolean; data = (void*)&bind; }
auto assign(int& bind) { type = Type::Integer; data = (void*)&bind; }
auto assign(uint& bind) { type = Type::Natural; data = (void*)&bind; }
auto assign(double& bind) { type = Type::Double; data = (void*)&bind; }
auto assign(string& bind) { type = Type::String; data = (void*)&bind; }
auto assign(const Node& node) { operator=(node); }
template<typename T> auto append(T& data, const string& name, const string& desc = "") -> void {
Node node;
node.assign(data);
node.name = name;
node.desc = desc;
children.append(node);
}
auto find(const string& path) -> maybe<Node&> {
auto p = path.split("/");
auto name = p.takeFirst();
for(auto& child : children) {
if(child.name == name) {
if(p.size() == 0) return child;
return child.find(p.merge("/"));
}
}
return nothing;
}
auto load(Markup::Node path) -> void {
for(auto& child : children) {
if(auto leaf = path[child.name]) {
if(!child.empty()) child.set(leaf.text());
child.load(leaf);
}
}
}
auto save(file& fp, unsigned depth = 0) -> void {
for(auto& child : children) {
if(child.desc) {
for(auto n : range(depth)) fp.print(" ");
fp.print("//", child.desc, "\n");
}
for(auto n : range(depth)) fp.print(" ");
fp.print(child.name);
if(!child.empty()) fp.print(": ", child.get());
fp.print("\n");
child.save(fp, depth + 1);
if(depth == 0) fp.print("\n");
}
}
};
struct Document : Node {
auto load(const string& filename) -> bool {
if(!file::exists(filename)) return false;
auto document = BML::unserialize(string::read(filename));
Node::load(document);
return true;
}
auto save(const string& filename) -> bool {
file fp(filename, file::mode::write);
if(!fp.open()) return false;
Node::save(fp);
return true;
}
};
}
}