初版-带一个进度条
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睿 安
260
sources/Application.cpp
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260
sources/Application.cpp
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#include "Application.h"
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#include "LayeredWindow.h"
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#include "UIManager.h"
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#include <CommCtrl.h>
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#undef FindResource
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namespace ezui {
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bool g_comInitialized = false;//标记是否由我初始化
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std::list<HWND> g_hWnds;//存储所有使用本框架产生的窗口句柄
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// 内部使用：枚举名称时的上下文
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struct ResourceContext {
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UIString rcIDName;
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HRSRC hResource = NULL;
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UIString rcType;
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};
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// 回调：枚举资源名称
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BOOL CALLBACK EnumNamesProc(HMODULE hModule, LPCWSTR lpszType, LPWSTR lpszName, LONG_PTR lParam) {
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ResourceContext* ctx = (ResourceContext*)(lParam);
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UIString resName = UIString(lpszName).toLower();
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if (!IS_INTRESOURCE(lpszName) && ctx->rcIDName.toLower() == resName) {
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ctx->hResource = FindResourceW(hModule, lpszName, lpszType);
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ctx->rcType = (wchar_t*)lpszType;
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return FALSE; // 找到就停止
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}
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return TRUE; // 继续
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}
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//通过资源名称查找windows嵌套资源
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HRSRC FindResource(const UIString& rcIDName)
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{
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HMODULE hModule = ezui::__EzUI__HINSTANCE;
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ResourceContext ctx;
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ctx.rcIDName = rcIDName;
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EnumResourceTypesW(hModule, [](HMODULE hModule, LPWSTR lpszType, LONG_PTR lParam)->BOOL {
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return EnumResourceNamesW(hModule, lpszType, EnumNamesProc, lParam);
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}, (LONG_PTR)&ctx);
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return ctx.hResource;
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}
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}
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namespace ezui {
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LRESULT CALLBACK __EzUI__WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
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if (message == WM_CREATE) {
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g_hWnds.push_back(hWnd);
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}
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else if (message == WM_DESTROY) {
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auto itor = std::find(g_hWnds.begin(), g_hWnds.end(), hWnd);
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if (itor != g_hWnds.end()) {
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g_hWnds.erase(itor);
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}
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}
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WindowData* wndData = (WindowData*)UI_GET_USERDATA(hWnd);
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//执行消息过程
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if (wndData && wndData->WndProc) {
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return wndData->WndProc(hWnd, message, wParam, lParam);
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}
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return ::DefWindowProc(hWnd, message, wParam, lParam);
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}
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void InitInvoker() {
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if (!ezui::__EzUI_MessageWnd) {
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::WNDCLASSEXW wcex = {};
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wcex.cbSize = sizeof(wcex);
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wcex.lpfnWndProc = [](HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) -> LRESULT {
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if (msg == WM_GUI_SYSTEM) {
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if (wParam == WM_GUI_BEGININVOKE || wParam == WM_GUI_INVOKE) {
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using Func = std::function<void()>;
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Func* callback = (Func*)lParam;
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(*callback)();
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if (wParam == WM_GUI_BEGININVOKE) {
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delete callback;
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}
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}
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return 0;
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}
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return ::DefWindowProc(hwnd, msg, wParam, lParam);
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};
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wcex.hInstance = ezui::__EzUI__HINSTANCE;
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wcex.lpszClassName = EZUI_INVOKER_WINDOW_CLASS;
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RegisterClassExW(&wcex);
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ezui::__EzUI_MessageWnd = CreateWindowEx(
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WS_EX_LAYERED | WS_EX_NOACTIVATE | WS_EX_TOOLWINDOW,
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EZUI_INVOKER_WINDOW_CLASS, // 上面注册的类名
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L"", // 窗口名（无用）
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0, // 样式设为 0（无 WS_VISIBLE）
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0, 0, 0, 0, // 尺寸全为 0
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NULL, NULL, ezui::__EzUI__HINSTANCE, NULL
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);
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}
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}
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//销毁多线程通讯窗口
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void DestroyInvoker() {
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//销毁用于通讯的不可见窗口
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if (ezui::__EzUI_MessageWnd) {
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::DestroyWindow(ezui::__EzUI_MessageWnd);
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ezui::__EzUI_MessageWnd = NULL;
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BOOL ret = UnregisterClassW(EZUI_INVOKER_WINDOW_CLASS, ezui::__EzUI__HINSTANCE);
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}
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}
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void Application::EnableHighDpi() {
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ezui::GetMonitor((std::list<MonitorInfo>*) & ezui::__EzUI__MonitorInfos);//获取一次显示器信息
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//DPI感知相关
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//不跟随系统放大无法接收WM_DISPLAYCHANGED消息
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//bool b = SetProcessDPIAware();
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//SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
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//会进入WM_DPICHANGED消息可进行自行控制缩放
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HMODULE hModNtdll = NULL;
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if (hModNtdll = ::LoadLibraryW(L"User32.dll")) {
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typedef void (WINAPI* Func_SetProcessDpiAwarenessContext)(void*);
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Func_SetProcessDpiAwarenessContext setProcessDpiAwarenessContext;
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setProcessDpiAwarenessContext = (Func_SetProcessDpiAwarenessContext)::GetProcAddress(hModNtdll, "SetProcessDpiAwarenessContext");
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if (setProcessDpiAwarenessContext)
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{
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//SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);//高版本sdk直接用
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setProcessDpiAwarenessContext((void*)-4);//函数指针方式是为了兼容win7
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}
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else {
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::SetProcessDPIAware();
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}
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::FreeLibrary(hModNtdll);
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}
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}
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bool Application::SetResource(const UIString& localOrResName) {
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//只允许有一个资源文件
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if (ezui::__EzUI__Resource) {
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delete ezui::__EzUI__Resource;
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ezui::__EzUI__Resource = NULL;
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}
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//先从vs中的资源里面查找
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bool found = false;
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HRSRC hRsrc = ezui::FindResource(localOrResName);
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if (hRsrc) {
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ezui::__EzUI__Resource = new Resource(hRsrc);
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found = true;
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}
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else {
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//本地文件中获取
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std::wstring wstr = localOrResName.unicode();
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DWORD dwAttr = GetFileAttributesW(wstr.c_str());
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if (dwAttr && (dwAttr != -1) && (dwAttr & FILE_ATTRIBUTE_ARCHIVE)) {
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ezui::__EzUI__Resource = new Resource(localOrResName);
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found = true;
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}
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}
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#ifdef _DEBUG
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if (!found) {
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::MessageBoxW(NULL, localOrResName.unicode().c_str(), L"Failed to open Resource", MB_OK | MB_ICONINFORMATION);
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}
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#endif
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return found;
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}
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Application::Application(HINSTANCE hInstance) {
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//存入全局实例
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ezui::__EzUI__HINSTANCE = hInstance == NULL ? ::GetModuleHandleW(NULL) : hInstance;
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ezui::__EzUI__ThreadId = ::GetCurrentThreadId();
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//设计窗口
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::WNDCLASSEXW wcex = {};
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wcex.cbSize = sizeof(wcex);
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wcex.style = CS_HREDRAW | CS_VREDRAW;//宽高改变窗口触发重绘
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wcex.lpfnWndProc = __EzUI__WndProc;//窗口过程
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wcex.cbClsExtra = 0;
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wcex.cbWndExtra = 0;
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wcex.hInstance = ezui::__EzUI__HINSTANCE;//
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wcex.hIcon = NULL;//(大图标)用于窗口标题栏、Alt+Tab 切换界面、任务栏预览等显示大图标的地方
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wcex.hIconSm = NULL;//(小图标)用于任务栏按钮、系统托盘（部分情况下）以及 Alt+Tab 小图标显示等
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wcex.hCursor = LoadCursorW(NULL, IDC_ARROW);//光标
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wcex.hbrBackground = NULL; // 窗口背景
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wcex.lpszMenuName = NULL;
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wcex.lpszClassName = EZUI_WINDOW_CLASS;//类名
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if (!RegisterClassExW(&wcex)) //注册窗口
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{
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::MessageBoxW(NULL, L"This program requires Windows NT !",
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wcex.lpszClassName, MB_ICONERROR);
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return;
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}
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//注册一个窗口类并创建隐形窗口用于UI直接的多线程通讯
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InitInvoker();
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//为程序设置工作目录
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std::wstring startPath = Application::StartPath().unicode();
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::SetCurrentDirectoryW(startPath.c_str());
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if (!g_comInitialized) {
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auto ret = ::CoInitialize(NULL);//初始化com
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if (ret == S_OK) {
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g_comInitialized = true;//由我初始化的
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}
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}
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RenderInitialize();//初始化图形绘制库 D2D/GDI/GDI+
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InitControls();//注册基础控件
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}
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//销毁所有窗口
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void DestroyAllWindows() {
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while (ezui::g_hWnds.size() > 0)
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{
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auto itor = ezui::g_hWnds.begin();
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if (itor != ezui::g_hWnds.end()) {
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HWND hwnd = *itor;
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g_hWnds.erase(itor);
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::DestroyWindow(hwnd);
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}
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}
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}
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Application::~Application() {
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//销毁通讯窗口
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DestroyInvoker();
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//销毁所有窗口
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DestroyAllWindows();
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//取消窗口注册的类
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BOOL ret = UnregisterClassW(EZUI_WINDOW_CLASS, ezui::__EzUI__HINSTANCE);
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RenderUnInitialize();
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if (g_comInitialized) {
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::CoUninitialize();
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g_comInitialized = false;
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}
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if (ezui::__EzUI__Resource) {
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delete ezui::__EzUI__Resource;
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ezui::__EzUI__Resource = NULL;
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}
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}
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int Application::Exec()
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{
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MSG msg;
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while (::GetMessage(&msg, NULL, 0, 0)) {
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::TranslateMessage(&msg);
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::DispatchMessage(&msg);
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}
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return msg.wParam;
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}
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void Application::Exit(int exitCode) {
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//销毁用于通讯的不可见窗口
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DestroyInvoker();
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//销毁所有窗口
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DestroyAllWindows();
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//退出消息循环
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::PostQuitMessage(exitCode);
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}
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UIString Application::StartPath()
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{
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std::vector<wchar_t> wPath(32768);
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DWORD count = ::GetModuleFileNameW(__EzUI__HINSTANCE, wPath.data(), (DWORD)wPath.size());
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for (int i = count - 1; i > -1; i--)
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{
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if (wPath[i] == L'\\') {
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wPath[i] = 0;
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break;
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}
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}
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return UIString(wPath.data());
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}
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};
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