466 lines
9.2 KiB
C++
466 lines
9.2 KiB
C++
#include "..\e2dbase.h"
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#include "..\e2dmanager.h"
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#include <imm.h>
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#pragma comment (lib ,"imm32.lib")
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e2d::Window * e2d::Window::_instance = nullptr;
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e2d::Window::Window()
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: _hWnd(nullptr)
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, _size(640, 480)
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, _title(L"Easy2D Game")
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, _iconID(0)
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{
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}
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e2d::Window::~Window()
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{
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// 关闭控制台
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if (::GetConsoleWindow())
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{
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::FreeConsole();
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}
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// 关闭窗口
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if (_hWnd)
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{
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::DestroyWindow(_hWnd);
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_hWnd = nullptr;
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}
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}
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e2d::Window * e2d::Window::getInstance()
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{
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if (!_instance)
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_instance = new (std::nothrow) Window;
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return _instance;
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}
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void e2d::Window::destroyInstance()
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{
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if (_instance)
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{
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delete _instance;
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_instance = nullptr;
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}
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}
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bool e2d::Window::createMutex(const String & mutex)
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{
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if (mutex.isEmpty())
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return false;
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// 创建进程互斥体
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String fullMutexName = L"Easy2DApp-" + mutex;
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HANDLE hMutex = ::CreateMutex(nullptr, TRUE, (LPCWSTR)fullMutexName);
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if (hMutex == nullptr)
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{
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WARN("CreateMutex Failed!");
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return false;
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}
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else if (::GetLastError() == ERROR_ALREADY_EXISTS)
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{
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// 关闭进程互斥体
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::CloseHandle(hMutex);
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// 打开游戏窗口
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if (!this->_title.isEmpty())
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{
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// 获取窗口句柄
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HWND hProgramWnd = ::FindWindow(L"Easy2DApp", (LPCTSTR)this->_title);
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if (hProgramWnd)
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{
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// 获取窗口显示状态
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WINDOWPLACEMENT wpm;
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::GetWindowPlacement(hProgramWnd, &wpm);
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// 将运行的程序窗口还原成正常状态
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wpm.showCmd = SW_SHOW;
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::SetWindowPlacement(hProgramWnd, &wpm);
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::SetWindowPos(hProgramWnd, HWND_TOP, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
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}
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}
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return false;
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}
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return true;
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}
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HWND e2d::Window::__create()
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{
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// 注册窗口类
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WNDCLASSEX wcex = { 0 };
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wcex.cbSize = sizeof(WNDCLASSEX);
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wcex.lpszClassName = L"Easy2DApp";
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wcex.style = CS_HREDRAW | CS_VREDRAW;
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wcex.lpfnWndProc = Window::WndProc;
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wcex.cbClsExtra = 0;
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wcex.cbWndExtra = sizeof(LONG_PTR);
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wcex.hInstance = HINST_THISCOMPONENT;
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wcex.hbrBackground = nullptr;
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wcex.lpszMenuName = nullptr;
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wcex.hCursor = ::LoadCursor(nullptr, IDC_ARROW);
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if (this->_iconID != 0)
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{
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wcex.hIcon = (HICON)::LoadImage(
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HINST_THISCOMPONENT,
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MAKEINTRESOURCE(this->_iconID),
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IMAGE_ICON,
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0,
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0,
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LR_DEFAULTCOLOR | LR_CREATEDIBSECTION | LR_DEFAULTSIZE
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);
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}
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else
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{
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wcex.hIcon = nullptr;
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}
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RegisterClassEx(&wcex);
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// 因为 CreateWindow 函数使用的是像素大小，获取系统的 DPI 以使它
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// 适应窗口缩放
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float dpiScaleX = 0.f, dpiScaleY = 0.f;
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Renderer::getFactory()->GetDesktopDpi(&dpiScaleX, &dpiScaleY);
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int nWidth = static_cast<int>(ceil(this->_size.width * dpiScaleX / 96.f));
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int nHeight = static_cast<int>(ceil(this->_size.height * dpiScaleY / 96.f));
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// 计算窗口大小
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DWORD dwStyle = WS_OVERLAPPEDWINDOW & ~WS_MAXIMIZEBOX &~WS_THICKFRAME;
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RECT wr = { 0, 0, static_cast<LONG>(nWidth), static_cast<LONG>(nHeight) };
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::AdjustWindowRectEx(&wr, dwStyle, FALSE, NULL);
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// 获取新的宽高
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nWidth = static_cast<int>(wr.right - wr.left);
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nHeight = static_cast<int>(wr.bottom - wr.top);
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// 获取屏幕分辨率
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int screenWidth = ::GetSystemMetrics(SM_CXSCREEN);
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int screenHeight = ::GetSystemMetrics(SM_CYSCREEN);
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// 创建窗口
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HWND hWnd = ::CreateWindowEx(
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NULL,
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L"Easy2DApp",
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(LPCTSTR)this->_title,
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dwStyle,
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(screenWidth - nWidth) / 2, (screenHeight - nHeight) / 2,
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nWidth, nHeight,
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nullptr,
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nullptr,
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HINST_THISCOMPONENT,
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nullptr
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);
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HRESULT hr = hWnd ? S_OK : E_FAIL;
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if (SUCCEEDED(hr))
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{
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// 禁用输入法
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this->setTypewritingEnabled(false);
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// 禁用控制台关闭按钮
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HWND consoleHWnd = ::GetConsoleWindow();
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if (consoleHWnd)
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{
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HMENU hmenu = ::GetSystemMenu(consoleHWnd, FALSE);
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::RemoveMenu(hmenu, SC_CLOSE, MF_BYCOMMAND);
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}
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}
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else
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{
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::UnregisterClass(L"Easy2DApp", HINST_THISCOMPONENT);
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}
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return hWnd;
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}
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void e2d::Window::__poll()
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{
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static MSG msg;
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while (::PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
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{
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::TranslateMessage(&msg);
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::DispatchMessage(&msg);
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}
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}
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double e2d::Window::getWidth()
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{
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return _size.width;
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}
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double e2d::Window::getHeight()
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{
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return _size.height;
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}
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e2d::Size e2d::Window::getSize()
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{
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return _size;
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}
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e2d::String e2d::Window::getTitle()
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{
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return _title;
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}
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HWND e2d::Window::getHWnd()
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{
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if (!_hWnd)
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{
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_hWnd = this->__create();
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if (_hWnd == nullptr)
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{
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throw SystemException(L"注册窗口失败");
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}
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}
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return _hWnd;
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}
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void e2d::Window::setSize(int width, int height)
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{
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this->_size = Size(width, height);
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if (_hWnd)
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{
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// 计算窗口大小
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DWORD dwStyle = WS_OVERLAPPEDWINDOW & ~WS_MAXIMIZEBOX &~WS_THICKFRAME;
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RECT wr = { 0, 0, static_cast<LONG>(width), static_cast<LONG>(height) };
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::AdjustWindowRectEx(&wr, dwStyle, FALSE, NULL);
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// 获取新的宽高
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width = static_cast<int>(wr.right - wr.left);
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height = static_cast<int>(wr.bottom - wr.top);
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// 获取屏幕分辨率
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int screenWidth = ::GetSystemMetrics(SM_CXSCREEN);
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int screenHeight = ::GetSystemMetrics(SM_CYSCREEN);
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// 当输入的窗口大小比分辨率大时，给出警告
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WARN_IF(screenWidth < width || screenHeight < height, "The window is larger than screen!");
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// 取最小值
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width = std::min(width, screenWidth);
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height = std::min(height, screenHeight);
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// 修改窗口大小，并设置窗口在屏幕居中
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::MoveWindow(_hWnd, (screenWidth - width) / 2, (screenHeight - height) / 2, width, height, TRUE);
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}
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}
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void e2d::Window::setTitle(const String& title)
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{
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this->_title = title;
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if (_hWnd)
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{
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::SetWindowText(_hWnd, (LPCWSTR)title);
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}
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}
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void e2d::Window::setIcon(int iconID)
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{
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this->_iconID = iconID;
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if (_hWnd)
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{
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HICON hIcon = (HICON)::LoadImage(HINST_THISCOMPONENT, MAKEINTRESOURCE(iconID), IMAGE_ICON, 0, 0, LR_DEFAULTCOLOR | LR_CREATEDIBSECTION | LR_DEFAULTSIZE);
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// 设置窗口的图标
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::SendMessage(_hWnd, WM_SETICON, ICON_BIG, (LPARAM)hIcon);
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::SendMessage(_hWnd, WM_SETICON, ICON_SMALL, (LPARAM)hIcon);
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}
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}
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void e2d::Window::setCursor(Cursor cursor)
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{
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LPCWSTR pCursorName = nullptr;
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switch (cursor)
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{
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case Cursor::Normal:
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pCursorName = IDC_ARROW;
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break;
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case Cursor::Hand:
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pCursorName = IDC_HAND;
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break;
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case Cursor::No:
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pCursorName = IDC_NO;
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break;
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case Cursor::Wait:
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pCursorName = IDC_WAIT;
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break;
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case Cursor::ArrowWait:
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pCursorName = IDC_APPSTARTING;
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break;
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default:
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break;
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}
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HCURSOR hCursor = ::LoadCursor(nullptr, pCursorName);
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::SetCursor(hCursor);
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}
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void e2d::Window::showConsole(bool show)
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{
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// 查找已存在的控制台句柄
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HWND hwnd = ::GetConsoleWindow();
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// 关闭控制台
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if (show)
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{
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if (hwnd)
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{
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::ShowWindow(hwnd, SW_SHOWNORMAL);
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}
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else
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{
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// 显示一个新控制台
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if (::AllocConsole())
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{
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hwnd = ::GetConsoleWindow();
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// 重定向输入输出
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FILE * stdoutStream, * stdinStream, * stderrStream;
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freopen_s(&stdoutStream, "conout$", "w+t", stdout);
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freopen_s(&stdinStream, "conin$", "r+t", stdin);
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freopen_s(&stderrStream, "conout$", "w+t", stderr);
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// 禁用控制台关闭按钮
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HMENU hmenu = ::GetSystemMenu(hwnd, FALSE);
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::RemoveMenu(hmenu, SC_CLOSE, MF_BYCOMMAND);
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}
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else
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{
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this->error(L"Alloc Console Failed!");
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}
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}
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}
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else
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{
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if (hwnd)
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{
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::ShowWindow(hwnd, SW_HIDE);
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}
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}
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}
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void e2d::Window::setTypewritingEnabled(bool enabled)
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{
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static HIMC hImc = nullptr;
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if (enabled)
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{
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if (hImc != nullptr)
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{
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::ImmAssociateContext(_hWnd, hImc);
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hImc = nullptr;
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}
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}
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else
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{
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if (hImc == nullptr)
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{
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hImc = ::ImmAssociateContext(_hWnd, nullptr);
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}
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}
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}
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void e2d::Window::info(const String & text, const String & title)
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{
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::MessageBox(_hWnd, (LPCWSTR)text, (LPCWSTR)title, MB_ICONINFORMATION | MB_OK);
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Game::getInstance()->reset();
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}
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void e2d::Window::warning(const String& title, const String& text)
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{
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::MessageBox(_hWnd, (LPCWSTR)text, (LPCWSTR)title, MB_ICONWARNING | MB_OK);
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Game::getInstance()->reset();
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}
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void e2d::Window::error(const String & text, const String & title)
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{
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::MessageBox(_hWnd, (LPCWSTR)text, (LPCWSTR)title, MB_ICONERROR | MB_OK);
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Game::getInstance()->reset();
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}
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LRESULT e2d::Window::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
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{
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LRESULT result = 0;
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bool hasHandled = false;
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switch (message)
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{
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// 处理窗口大小变化消息
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case WM_SIZE:
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{
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UINT width = LOWORD(lParam);
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UINT height = HIWORD(lParam);
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if (wParam == SIZE_RESTORED)
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{
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Window::getInstance()->_size = Size(width, height);
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}
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// 如果程序接收到一个 WM_SIZE 消息，这个方法将调整渲染
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// 目标适当。它可能会调用失败，但是这里可以忽略有可能的
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// 错误，因为这个错误将在下一次调用 EndDraw 时产生
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auto pRT = Renderer::getInstance()->getRenderTarget();
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if (pRT)
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{
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pRT->Resize(D2D1::SizeU(width, height));
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}
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}
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break;
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// 处理窗口标题变化消息
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case WM_SETTEXT:
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{
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Window::getInstance()->_title = (const wchar_t*)lParam;
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}
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break;
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// 处理分辨率变化消息
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case WM_DISPLAYCHANGE:
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{
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// 重绘客户区
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InvalidateRect(hWnd, nullptr, FALSE);
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}
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result = 0;
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hasHandled = true;
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break;
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// 重绘窗口
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case WM_PAINT:
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{
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e2d::Renderer::getInstance()->__render();
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ValidateRect(hWnd, nullptr);
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}
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result = 0;
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hasHandled = true;
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break;
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// 窗口关闭消息
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case WM_CLOSE:
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{
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e2d::Scene * pCurrentScene = e2d::SceneManager::getCurrentScene();
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if (!pCurrentScene || pCurrentScene->onCloseWindow())
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{
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e2d::Game::getInstance()->quit();
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}
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}
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result = 0;
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hasHandled = true;
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break;
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// 窗口销毁消息
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case WM_DESTROY:
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{
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PostQuitMessage(0);
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}
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result = 1;
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hasHandled = true;
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break;
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}
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if (!hasHandled)
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{
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result = DefWindowProc(hWnd, message, wParam, lParam);
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}
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return result;
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} |