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#include "cru/platform/win/win_application.hpp"
#include "cru/platform/win/exception.hpp"
#include "cru/platform/win/god_window.hpp"
#include "cru/platform/win/graph_manager.hpp"
#include "cru/platform/win/win_graph_factory.hpp"
#include "cru/platform/win/win_native_window.hpp"
#include "god_window_message.hpp"
#include "timer.hpp"
#include "window_manager.hpp"
#include <VersionHelpers.h>
#include <cassert>
namespace cru::platform {
UiApplication* UiApplication::GetInstance() {
return win::WinApplication::GetInstance();
}
} // namespace cru::platform
namespace cru::platform::win {
WinApplication* WinApplication::instance_ = nullptr;
WinApplication* WinApplication::GetInstance() {
if (instance_ == nullptr)
instance_ = new WinApplication(::GetModuleHandleW(nullptr));
return instance_;
}
WinApplication::WinApplication(HINSTANCE h_instance) : h_instance_(h_instance) {
if (instance_)
throw std::runtime_error("A application instance already exists.");
instance_ = this;
if (!::IsWindows8OrGreater())
throw std::runtime_error("Must run on Windows 8 or later.");
god_window_ = std::make_shared<GodWindow>(this);
timer_manager_ = std::make_shared<TimerManager>(god_window_.get());
window_manager_ = std::make_shared<WindowManager>(this);
graph_manager_ = std::make_shared<GraphManager>();
graph_factory_ = std::make_shared<WinGraphFactory>(graph_manager_.get());
}
WinApplication::~WinApplication() { instance_ = nullptr; }
int WinApplication::Run() {
MSG msg;
while (GetMessageW(&msg, nullptr, 0, 0)) {
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
return static_cast<int>(msg.wParam);
}
void WinApplication::Quit(const int quit_code) { ::PostQuitMessage(quit_code); }
void WinApplication::InvokeLater(const std::function<void()>& action) {
// copy the action to a safe place
auto p_action_copy = new std::function<void()>(action);
if (PostMessageW(GetGodWindow()->GetHandle(), invoke_later_message_id,
reinterpret_cast<WPARAM>(p_action_copy), 0) == 0)
throw Win32Error(::GetLastError(), "InvokeLater failed to post message.");
}
unsigned long WinApplication::SetTimeout(std::chrono::milliseconds milliseconds,
const std::function<void()>& action) {
return static_cast<unsigned long>(timer_manager_->CreateTimer(
static_cast<UINT>(milliseconds.count()), false, action));
}
unsigned long WinApplication::SetInterval(
std::chrono::milliseconds milliseconds,
const std::function<void()>& action) {
return static_cast<unsigned long>(timer_manager_->CreateTimer(
static_cast<UINT>(milliseconds.count()), true, action));
}
void WinApplication::CancelTimer(unsigned long id) {
timer_manager_->KillTimer(static_cast<UINT_PTR>(id));
}
std::vector<NativeWindow*> WinApplication::GetAllWindow() {
const auto&& windows = window_manager_->GetAllWindows();
std::vector<NativeWindow*> result;
for (const auto w : windows) {
result.push_back(static_cast<NativeWindow*>(w));
}
return result;
}
NativeWindow* WinApplication::CreateWindow(NativeWindow* parent) {
WinNativeWindow* p = nullptr;
if (parent != nullptr) {
p = dynamic_cast<WinNativeWindow*>(parent);
assert(p);
}
return new WinNativeWindow(this, window_manager_->GetGeneralWindowClass(),
WS_OVERLAPPEDWINDOW, p);
}
GraphFactory* WinApplication::GetGraphFactory() { return graph_factory_.get(); }
} // namespace cru::platform::win
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