MFC自动调整窗口上的控件大小和位置

// cdxCDynamicControlsManager.cpp: implementation of the cdxCDynamicControlsManager class. // ////////////////////////////////////////////////////////////////////// /* * you should define OEMRESOURCE * in your project settings (C/C++, General) ! */ #include "stdafx.h" #include "cdxCDynamicControlsManager.h" #include <winuser.h> #include <afxmt.h> #ifndef OBM_SIZE #define OBM_SIZE 32766 #pragma message("*** NOTE: cdxCDynamicControlsManager.cpp: Please define OEMRESOURCE in your project settings !") // taken from WinresRc.h // if not used for any reason #endif #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // Some static variables ///////////////////////////////////////////////////////////////////////////// #define REGVAL_NOSTATE -1 #define REGVAL_VISIBLE 1 #define REGVAL_HIDDEN 0 #define REGVAL_MAXIMIZED 1 #define REGVAL_ICONIC 0 #define REGVAL_INVALID 0 #define REGVAL_VALID 1 /* * registry value names * (for StoreWindowPosition()/RestoreWindowPosition()) */ static LPCTSTR lpszRegVal_Left = _T("Left"), lpszRegVal_Right = _T("Right"), lpszRegVal_Top = _T("Top"), lpszRegVal_Bottom = _T("Bottom"), lpszRegVal_Visible = _T("Visibility"), lpszRegVal_State = _T("State"), lpszRegVal_Valid = _T("(valid)"); ///////////////////////////////////////////////////////////////////////////// // cdxCDynamicControlsManager::ControlData::ControlEntry ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // construction/destruction ///////////////////////////////////////////////////////////////////////////// cdxCDynamicControlsManager::ControlData::ControlEntry::ControlEntry(CWnd & ctrl, ControlData & rMaster) : m_rMaster(rMaster), m_rCtrl(ctrl) { if(m_pNext = rMaster.m_pCtrl) m_pNext->m_pPrev = this; rMaster.m_pCtrl = this; m_pPrev = NULL; } cdxCDynamicControlsManager::ControlData::ControlEntry::~ControlEntry() { if(m_pPrev) { if(m_pPrev->m_pNext = m_pNext) m_pNext->m_pPrev = m_pPrev; } else { ASSERT( m_rMaster.m_pCtrl == this ); if(m_rMaster.m_pCtrl = m_pNext) m_pNext->m_pPrev = NULL; } } ///////////////////////////////////////////////////////////////////////////// // cdxCDynamicControlsManager::ControlData ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // construction/destruction ///////////////////////////////////////////////////////////////////////////// /* * constructor * copies all paramaters and gets the controls initial position using * GetWindowPos(). * * NOTE that the constructor need ctrl.m_hWnd to exist (in contrast to * Add() */ cdxCDynamicControlsManager::ControlData::ControlData(cdxCDynamicControlsManager & rMaster, CWnd & ctrl, const PositionSetup & rPosSetup) : m_rMaster(rMaster), m_pCtrl(NULL), m_pNext(NULL), m_pPrev(NULL), m_posSetup(rPosSetup) { ASSERT(::IsWindow(ctrl.m_hWnd)); // control must have already been created ! ASSERT(rPosSetup.IsValid()); // // get initial values // WINDOWPLACEMENT wpl; VERIFY( ctrl.GetWindowPlacement(&wpl) ); m_rectOriginal = wpl.rcNormalPosition; // // remember control // new ControlEntry(ctrl,*this); ASSERT(m_pCtrl != NULL); // // link us to the cdxCDynamicControlsManager's list // if(m_pNext = m_rMaster.m_pFirst) m_pNext->m_pPrev = this; m_pPrev = NULL; m_rMaster.m_pFirst = this; } /* * detach from list * The m_Ctrl deletes all children by itself */ cdxCDynamicControlsManager::ControlData::~ControlData() { // // delete all control references // while(m_pCtrl) delete m_pCtrl; // // unlink from list // if(m_pPrev) { if(m_pPrev->m_pNext = m_pNext) m_pNext->m_pPrev = m_pPrev; } else { ASSERT(m_rMaster.m_pFirst == this); if(m_rMaster.m_pFirst = m_pNext) m_pNext->m_pPrev = NULL; } } ///////////////////////////////////////////////////////////////////////////// // cdxCDynamicControlsManager::ControlData virtuals ///////////////////////////////////////////////////////////////////////////// /* * checks whether the CWnd is part of this control data */ bool cdxCDynamicControlsManager::ControlData::IsMember(CWnd & ctrl) const { for(const ControlEntry *pEntry = m_pCtrl; pEntry; pEntry = pEntry->GetNext()) if(*pEntry == ctrl) return true; return false; } /* * removes a CWnd from this chain */ bool cdxCDynamicControlsManager::ControlData::Rem(CWnd & ctrl) { for(ControlEntry *pEntry = m_pCtrl; pEntry; pEntry = pEntry->GetNext()) if(*pEntry == ctrl) { delete pEntry; return true; } return false; } /* * Get current position */ CRect cdxCDynamicControlsManager::ControlData::GetCurrentPosition() const { if(!IsUsed()) { ASSERT(false); // all sub-controls have been deleted return CRect(0,0,0,0); } WINDOWPLACEMENT wpl; VERIFY( m_pCtrl->GetCWnd().GetWindowPlacement(&wpl) ); return CRect(wpl.rcNormalPosition); } /* * modify initial setup * NOTE: this function does not move the controls. * You habe to call cdxCDynamicControlsManager::ReorganizeControls past * using this function */ bool cdxCDynamicControlsManager::ControlData::Modify(const CRect & rectOriginal, const PositionSetup & rSetup) { if((rectOriginal.left > rectOriginal.right) || (rectOriginal.top > rectOriginal.bottom) || !rSetup.IsValid()) { ASSERT(false); // bad function call return false; } m_rectOriginal = rectOriginal; m_posSetup = rSetup; return true; } ///////////////////////////////////////////////////////////////////////////// // cdxCDynamicControlsManager ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // handling events from CWnd ///////////////////////////////////////////////////////////////////////////// /* * this function initializes the following members: * m_pWnd - the window handle * m_szCurrent - the current window's size * m_szMin - the minimum window's size (taken from current size) * m_szMax - the maximum window's size (set to (0,0) <=> don't change maximum) * m_wndSizeIcon - the icon (if wanted) * * parameters: * rWnd - the window to supervise * fd - in which directions can we size the window (does only apply to user-sizing) * bSizeIcon - do you want a sizable icon ? * pBaseClientSize- if non-zero, this defines the real (normal) size of the * window relative to all furher calculations will be made. * if zero, the current window's size will be taken. */ void cdxCDynamicControlsManager::DoInitWindow(CWnd & rWnd, Freedom fd, bool bSizeIcon, const CSize * pBaseClientSize) { ASSERT(m_pWnd == NULL); // you MUST NOT call this function twice ! ASSERT(::IsWindow(rWnd.m_hWnd)); // rWnd MUST already exist !! m_pWnd = &rWnd; m_Freedom = fd; // // get current's window size // CRect rect; m_pWnd->GetWindowRect(&rect); CRect rectClient; m_pWnd->GetClientRect(&rectClient); if(!pBaseClientSize) { m_szClientRelative.cx = rectClient.Width(); m_szClientRelative.cy = rectClient.Height(); m_szMin.cx = rect.Width(); m_szMin.cy = rect.Height(); } else { ASSERT((pBaseClientSize->cx > 0) && (pBaseClientSize->cy > 0)); m_szClientRelative = *pBaseClientSize; m_szMin.cx = m_szClientRelative.cx + (rect.Width() - rectClient.Width()); m_szMin.cy = m_szClientRelative.cy + (rect.Height() - rectClient.Height()); } m_szMax.cx = 0