MFC创建窗口类v1.6（简单模仿Qt的信号槽机制，并对消息处理优化）

#include "stdafx.h" #include "TWidget.h" #include <afxwin.h> #include "./MsgFunManage/MsgFunManage.h" using namespace std; namespace TUi { // 简单的测试了下 TWidget::TWidget(TWidget *hParent, TWidgetStdModel *Model) { wnd_This = 0; m_hWnd = 0; b_IsQuit = FALSE; h_BkBrush = 0; color_Background = RGB(255, 255, 255); m_msgFunManage = new MsgFunManage; map_SignalFuns.clear(); // 初始化窗口对象 if (InitWdiget( hParent ? hParent->m_hWnd : 0, // 若为空，则传入0 Model ? Model : &TWidgetStdModel() // 若为空，就传入一个临时对象指针 )) { hParent->list_ChildObject.push_back(this); // 加入父窗口的Child队列，由父窗口负责销毁子窗口 } } TWidget::TWidget(HWND hParent, TWidgetStdModel *Model) { wnd_This = 0; m_hWnd = 0; b_IsQuit = FALSE; h_BkBrush = 0; color_Background = RGB(255, 255, 255); map_SignalFuns.clear(); m_msgFunManage = new MsgFunManage; // 初始化窗口对象 InitWdiget(hParent, Model ? Model : &TWidgetStdModel()); // 若为空，就传入一个临时对象指针 } BOOL TWidget::InitWdiget(HWND hParent, TWidgetStdModel *Model) { if (hParent == NULL) // 创建顶级窗口 { Model->AutoAdjustWndRect(FALSE); Model->SetWndStyle(WS_OVERLAPPEDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN); Model->InitTopWidgetStyle(); // 注册并创建窗口 Create(hParent, Model); return FALSE; } else // 创建子窗口 { // 初始化子窗口风格和Names Model->SetNames(TEXT("TChildWidget_1")); Model->SetWndStyle(WS_VISIBLE | WS_CLIPSIBLINGS | WS_CHILDWINDOW); Model->InitChildWidgetStyle(); Model->AutoAdjustWndRect(TRUE); // 注册并创建窗口 Create(hParent, Model); } return TRUE; } BOOL TWidget::Create(HWND hParent, TWidgetStdModel *Model) { WNDCLASSEX wndcls; HINSTANCE hInst = (HINSTANCE)::GetWindowLongPtr(NULL, GWL_HINSTANCE); // 注册窗口类 if (!(::GetClassInfoEx(hInst, Model->str_ClassName.c_str(), &wndcls))) // 是否被注册 { memset(&wndcls, 0, sizeof(WNDCLASSEXA)); wndcls.hInstance = hInst; wndcls.lpfnWndProc = TWidget::WindowProc; if (Model->color_Background == RGB(255, 255, 255)) wndcls.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); else { color_Background = Model->color_Background; h_BkBrush = CreateSolidBrush(color_Background); wndcls.hbrBackground = h_BkBrush; } Model->SetWndClassEx(&wndcls); // 注册窗口类，注册失败则循环注册 if (!RegisterClassEx(&wndcls)) { Model->SetClassName(Model->AutoAdjustName(Model->str_ClassName)); if (!Model->str_ClassName.size()) return FALSE; return Create(hParent, Model); } } RECT rcWin = Model->rc_Win; // 创建窗口 HWND hWin = ::CreateWindowEx(Model->dw_WndExStyle, Model->str_ClassName.c_str(), Model->str_WndName.c_str(), Model->dw_WndStyle, rcWin.left, rcWin.top, rcWin.right - rcWin.left, rcWin.bottom - rcWin.top, hParent, Model->h_Menu, hInst, this); if (hWin == NULL) { assert(0); return FALSE; } wnd_This = CWnd::FromHandle(m_hWnd); ::ShowWindow(m_hWnd, SW_SHOW); RECT rcClient; GetClientRect(m_hWnd, &rcClient); InvalidateRect(m_hWnd, &rcClient, TRUE); return TRUE; } TWidget::~TWidget() { // delete 子控件对象 int iSize = list_ChildObject.size(); if (iSize) { for (int i = 0; i < iSize; ++i) { delete list_ChildObject[i]; } } if (h_BkBrush != 0) { DeleteObject(h_BkBrush); } delete m_msgFunManage; wnd_This = 0; m_hWnd = 0; h_BkBrush = 0; list_ChildObject.clear(); map_SignalFuns.clear(); } void TWidget::DoModel(HWND hParent) { // 递归寻找主窗口 if (GetParent(hParent)) { hParent = GetParent(hParent); DoModel(hParent); } // 使窗口失效 if (::IsWindow(hParent)) { ::EnableWindow(hParent, FALSE); } // 不能是子窗口 if (::GetWindowLongPtr(m_hWnd,GWL_STYLE) & WS_CHILD) { assert(0); } MSG msg; while (!this->b_IsQuit) { ::GetMessage(&msg, NULL, 0, 0); ::TranslateMessage(&msg); ::DispatchMessage(&msg); } // 恢复窗口 if (::IsWindow(hParent)) { ::EnableWindow(hParent, TRUE); if (!::IsWindowVisible(hParent)) ::ShowWindow(hParent,SW_SHOW); ::SetForegroundWindow(hParent); } } void TWidget::Update() { RECT rcArea; ::GetClientRect(m_hWnd, &rcArea); ::InvalidateRect(m_hWnd, &rcArea, TRUE); } void TWidget::Update(const RECT* rcArea) { ::InvalidateRect(m_hWnd, rcArea, TRUE); } void TWidget::Repaint() { RECT rcArea; ::GetClientRect(m_hWnd, &rcArea); ::InvalidateRect(m_hWnd, &rcArea, TRUE); ::UpdateWindow(m_hWnd); } void TWidget::Repaint(const RECT *rcArea) { ::InvalidateRect(m_hWnd, rcArea, TRUE); ::UpdateWindow(m_hWnd); } void TWidget::AddMsgFun(UINT Msg, MsgFun msgFun) { m_msgFunManage->AddMsgFun(Msg, msgFun); } void TWidget::AdjustWidgetRect(float scaleWidth, float scaleHeight) { RECT rcWin; ::GetWindowRect(m_hWnd, &rcWin); int iWidth = rcWin.right - rcWin.left; int iHeight = rcWin.bottom - rcWin.top; int iHOffset = (int)((iWidth * scaleWidth - iWidth) / 2); int iVOffset = (int)((iHeight * scaleHeight - iHeight) / 2); rcWin.left -= iHOffset; rcWin.right += iHOffset; rcWin.top -= iVOffset; rcWin.bottom += iVOffset; this->SetWindowRect(rcWin); } // void TWidget::ConnectSlot(int iSignal, const TWidget *pThis, SlotFun slotFun) // { // CallFun callFun = { (TWidget*)pThis, slotFun }; // map_SignalFuns.insert(MapSignalFun::value_type(iSignal, callFun)); // } void TWidget::SetWindowRect(const RECT &rcWin) { ::MoveWindow(m_hWnd, rcWin.left, rcWin.top, rcWin.right - rcWin.left, rcWin.bottom - rcWin.top, TRUE); } void TWidget::SetWidgetTransparent(BYTE Alpha) { DWORD dwWndExStyle = GetWindowLongPtr(this->m_hWnd, GWL_EXSTYLE); if (!(dwWndExStyle & WS_EX_LAYERED)) { ::SetWindowLongPtr(this->m_hWnd, GWL_EXSTYLE, dwWndExStyle | WS_EX_LAYERED); } ::SetLayeredWindowAttributes(m_hWnd, color_Background, Alpha, LWA_ALPHA | LWA_COLORKEY); } void TWidget::SetBkTransparent() { DWORD dwWndExStyle = GetWindowLongPtr(this->m_hWnd, GWL_EXSTYLE); if (!(dwWndExStyle & WS_EX_LAYERED)) { ::SetWindowLongPtr(this->m_hWnd, GWL_EXSTYLE, dwWndExStyle | WS_EX_LAYERED); } if (color_Background == RGB(255,255,255)) { #ifdef _DEBUG MessageBox(NULL, TEXT("Model Not Set SetBkTransparent() Function! The Transparent Color Is Not White!"), NULL, MB_OK); #endif assert(0); } ::SetLayeredWindowAttributes(m_hWnd, color_Background, 0, LWA_COLORKEY); } void TWidget::SetWindowStyle(DWORD dwWndStyle) { ::SetWindowLongPtr(m_hWnd, GWL_STYLE, dwWndStyle); } void TWidget::QuitWidget(BOOL bQuit) { b_IsQuit = bQuit; } void TWidget::SetThisPointer(HWND hWnd, LPARAM lParam) { this->m_hWnd = hWnd; SetWindowLongPtr(hWnd, GWL_USERDATA, (LONG)this); } LRESULT TWidget::WindowProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam) { switch (Msg) { case WM_PAINT: { TWidget *pThis = (TWidget*)::GetWindowLongPtr(hWnd, GWL_USERDATA); pThis->OnPaint(WidParam(Msg, wParam, lParam)); } break; default: { TWidget *pThis = (TWidget*)::GetWindowLongPtr(hWnd, GWL_USERDATA); if (!pThis) break; return pThis->WinProc(Msg, wParam, lParam); } case WM_COMMAND: { TWidget *pThis = (TWidget*)::GetWindowLongPtr(hWnd, GWL_USERDATA); if (pThis) pThis->OnCommand(WidParam(Msg, wParam, lParam)); } break; case WM_CREATE: case WM_NCCREATE: // 在这个消息获取 类的 this 指针 { TWidget *pThis = (TWidget*)::GetWindowLongPtr(hWnd, GWL_USERDATA); if (pThis == 0) { // 得到CreateStruct->lpCreateParams = this 指针 LPCREATESTRUCT lcs = (LPCREATESTRUC