115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
#include "Bootstrap/Application.h"
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#include "Bootstrap/ApplicationBootstrapSupport.h"
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#include "Platform/Win32/EditorWindow.h"
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#include "Platform/Win32/EditorWindowManager.h"
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#include <Platform/Win32/WindowMessageDispatcher.h>
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namespace XCEngine::UI::Editor {
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using namespace BootstrapSupport;
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namespace {
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void TryEnableNonClientDpiScaling(HWND hwnd) {
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if (hwnd == nullptr) {
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return;
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}
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const HMODULE user32 = GetModuleHandleW(L"user32.dll");
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if (user32 == nullptr) {
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return;
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}
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using EnableNonClientDpiScalingFn = BOOL(WINAPI*)(HWND);
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const auto enableNonClientDpiScaling =
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reinterpret_cast<EnableNonClientDpiScalingFn>(
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GetProcAddress(user32, "EnableNonClientDpiScaling"));
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if (enableNonClientDpiScaling != nullptr) {
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enableNonClientDpiScaling(hwnd);
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}
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}
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Application* GetApplicationFromWindowUserData(HWND hwnd) {
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return reinterpret_cast<Application*>(GetWindowLongPtrW(hwnd, GWLP_USERDATA));
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}
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} // namespace
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bool Application::RegisterWindowClass() {
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WNDCLASSEXW windowClass = {};
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windowClass.cbSize = sizeof(windowClass);
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windowClass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
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windowClass.lpfnWndProc = &Application::WndProc;
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windowClass.cbClsExtra = 0;
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windowClass.cbWndExtra = 0;
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windowClass.hInstance = m_hInstance;
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windowClass.hCursor = LoadCursorW(nullptr, IDC_ARROW);
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windowClass.hbrBackground = nullptr;
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windowClass.lpszMenuName = nullptr;
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windowClass.hIcon = static_cast<HICON>(
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LoadImageW(
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m_hInstance,
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MAKEINTRESOURCEW(IDI_APP_ICON),
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IMAGE_ICON,
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0,
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0,
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LR_DEFAULTSIZE));
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windowClass.hIconSm = static_cast<HICON>(
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LoadImageW(
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m_hInstance,
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MAKEINTRESOURCEW(IDI_APP_ICON_SMALL),
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IMAGE_ICON,
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GetSystemMetrics(SM_CXSMICON),
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GetSystemMetrics(SM_CYSMICON),
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LR_DEFAULTCOLOR));
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windowClass.lpszClassName = kWindowClassName;
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m_windowClassAtom = RegisterClassExW(&windowClass);
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if (m_windowClassAtom == 0) {
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AppendUIEditorRuntimeTrace("app", "window class registration failed");
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return false;
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}
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return true;
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}
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LRESULT CALLBACK Application::WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
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if (message == WM_NCCREATE) {
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TryEnableNonClientDpiScaling(hwnd);
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const auto* createStruct = reinterpret_cast<const CREATESTRUCTW*>(lParam);
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Application* application =
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createStruct != nullptr
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? reinterpret_cast<Application*>(createStruct->lpCreateParams)
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: nullptr;
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SetWindowLongPtrW(hwnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(application));
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if (application != nullptr && application->m_windowManager != nullptr) {
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application->m_windowManager->HandlePendingNativeWindowCreated(hwnd);
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}
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return TRUE;
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}
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Application* application = GetApplicationFromWindowUserData(hwnd);
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App::EditorWindow* window =
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application != nullptr && application->m_windowManager != nullptr
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? application->m_windowManager->FindWindow(hwnd)
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: nullptr;
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LRESULT dispatcherResult = 0;
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if (application != nullptr &&
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window != nullptr &&
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Host::WindowMessageDispatcher::TryDispatch(
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hwnd,
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*application,
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*window,
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message,
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wParam,
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lParam,
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dispatcherResult)) {
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return dispatcherResult;
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}
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return DefWindowProcW(hwnd, message, wParam, lParam);
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}
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} // namespace XCEngine::UI::Editor
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