VC 对话框控件自动调整位置

// lxDialog.cpp: implementation of the ClxDialog class. // ////////////////////////////////////////////////////////////////////// #include "stdafx.h" #include "decode.h" #include "lxDialog.h" #ifdef _DEBUG #undef THIS_FILE static char THIS_FILE[]=__FILE__; #define new DEBUG_NEW #endif // 表示可改变大小的图标ID #ifndef OBM_SIZE #define OBM_SIZE 32766 #endif //设置对话框能调整的最小长宽 #define MINDLG_HEIGHT #define MINDLG_WIDTH ////////////////////////////////////////////////////////////////////// // Construction/Destruction ////////////////////////////////////////////////////////////////////// ClxDialog::~ClxDialog() { } ClxDialog::ClxDialog(UINT nID, CWnd* pParent ): CDialog(nID, pParent), m_iClientWidth(0), m_iClientHeight(0), m_iMinWidth(0), m_iMinHeight(0), m_pControlArray(NULL), m_iControlNumber(0), m_bShowSizeIcon(TRUE) {} BEGIN_MESSAGE_MAP(ClxDialog, CDialog) ON_WM_SIZE() ON_WM_SIZING() END_MESSAGE_MAP() BOOL ClxDialog::OnInitDialog() {CDialog::OnInitDialog(); // 设置对话框为可变大小的 ModifyStyle(0, WS_SIZEBOX); //设置对话框属性，使它能支持鼠标拖动改变大小 ModifyStyle( NULL, WS_THICKFRAME); // 以对话框的初始大小作为对话框的宽度和高度的最小值 CRect rectDlg; GetWindowRect(rectDlg); m_iMinWidth = rectDlg.Width(); m_iMinHeight = rectDlg.Height(); // 得到对话框client区域的大小 CRect rectClient; GetClientRect(rectClient); m_iClientWidth = rectClient.Width(); m_iClientHeight = rectClient.Height(); // Load图标 m_bmpSizeIcon.LoadOEMBitmap(OBM_SIZE); m_bmpSizeIcon.GetBitmap(&m_bitmap); // 创建显示图标的静态控件并放在对话框右下角 m_wndSizeIcon.Create(NULL, WS_CHILD | WS_VISIBLE | SS_BITMAP, CRect(0, 0, m_bitmap.bmWidth, m_bitmap.bmHeight), this, 0); m_wndSizeIcon.SetBitmap(m_bmpSizeIcon); m_wndSizeIcon.MoveWindow(m_iClientWidth - m_bitmap.bmWidth, m_iClientHeight - m_bitmap.bmHeight, m_bitmap.bmWidth, m_bitmap.bmHeight); // 显示图标 m_wndSizeIcon.ShowWindow(m_bShowSizeIcon); return TRUE; } void ClxDialog::OnSize(UINT nType, int cx, int cy) { CDialog::OnSize(nType, cx, cy); // 对话框宽度和高度的增量 int iIncrementX = cx - m_iClientWidth; int iIncrementY = cy - m_iClientHeight; // 最小化时增量为0 if (nType == SIZE_MINIMIZED) { iIncrementX = iIncrementY = 0; } for (int i = 0; i < m_iControlNumber; i++) { CWnd *pWndCtrl = NULL; int iId = m_pControlArray[i].iId; int iFlag = m_pControlArray[i].iFlag; int iPercent = m_pControlArray[i].iPercent; // 无效值 if ((iPercent < 0) || (iPercent > 100)) continue; // 得到控件指针 pWndCtrl = GetDlgItem(iId); if ((NULL != pWndCtrl) && IsWindow(pWndCtrl->GetSafeHwnd())) { CRect rectCtrl; pWndCtrl->GetWindowRect(rectCtrl); ScreenToClient(rectCtrl); int iLeft = rectCtrl.left; int iTop = rectCtrl.top; int iWidth = rectCtrl.Width(); int iHeight = rectCtrl.Height(); switch (iFlag) { case MOVEX: // X方向移动 iLeft += (iIncrementX * iPercent / 100); break; case MOVEY: // Y方向移动 iTop += (iIncrementY * iPercent / 100); break; case MOVEXY: // X方向和Y方向同时移动 iLeft += (iIncrementX * iPercent / 100); iTop += (iIncrementY * iPercent / 100); break; case ELASTICX: // X方向改变大小 iWidth += (iIncrementX * iPercent / 100); break; case ELASTICY: // Y方向改变大小 iHeight += (iIncrementY * iPercent / 100); break; case ELASTICXY: // X方向和Y方向同时改变大小 iWidth += (iIncrementX * iPercent / 100); iHeight += (iIncrementY * iPercent / 100); break; default: ; } // 把控件移动到新位置 pWndCtrl->MoveWindow(iLeft, iTop, iWidth, iHeight); } } // 把图标移动到对话框右下角 if (IsWindow(m_wndSizeIcon.GetSafeHwnd())) m_wndSizeIcon.MoveWindow(cx - m_bitmap.bmWidth, cy - m_bitmap.bmHeight, m_bitmap.bmWidth, m_bitmap.bmHeight); // 记录对话框client区域的大小 if (nType != SIZE_MINIMIZED) { m_iClientWidth = cx; m_iClientHeight = cy; } } void ClxDialog::OnSizing(UINT nSide, LPRECT lpRect) { CDialog::OnSizing(nSide, lpRect); //设置对话框能调整的最小长和宽 CRect rect(pRect); int width = rect.Width(); int height = rect.Height(); switch(fwSide) { case WMSZ_BOTTOM: { if(height < MINDLG_HEIGHT) pRect->bottom = pRect->top + MINDLG_HEIGHT; break; } case WMSZ_LEFT: { if(width < MINDLG_WIDTH) pRect->left = pRect->right - MINDLG_WIDTH; break; } case WMSZ_RIGHT: { if (width < MINDLG_WIDTH) pRect->right = pRect->left + MINDLG_WIDTH; break; } case WMSZ_TOP: { if (height < MINDLG_HEIGHT) pRect->top = pRect->bottom - MINDLG_HEIGHT; break; } case WMSZ_TOPLEFT: { if (width < MINDLG_WIDTH) pRect->left = pRect->right - MINDLG_WIDTH; if (height < MINDLG_HEIGHT) pRect->top = pRect->bottom - MINDLG_HEIGHT; break; } case WMSZ_TOPRIGHT: { if (width < MINDLG_WIDTH) pRect->right = pRect->left + MINDLG_WIDTH; if (height < MINDLG_HEIGHT) pRect->top = pRect->bottom - MINDLG_HEIGHT; break; } case WMSZ_BOTTOMLEFT: { if (width < MINDLG_WIDTH) pRect->left = pRect->right - MINDLG_WIDTH; if (height < MINDLG_HEIGHT) pRect->bottom = pRect->top + MINDLG_HEIGHT; break; } case WMSZ_BOTTOMRIGHT: { if (width < MINDLG_WIDTH) pRect->right = pRect->left + MINDLG_WIDTH; if (height < MINDLG_HEIGHT) pRect->bottom = pRect->top + MINDLG_HEIGHT; break; } } } BOOL ClxDialog::SetControlProperty(PDLGCTLINFO lp, int nElements) { // 设置控件数组信息 if (NULL == lp) return FALSE; if (nElements <= 0) return FALSE; m_pControlArray = lp; m_iControlNumber = nElements; return TRUE; } void ClxDialog::ShowSizeIcon(BOOL bShow ) { m_bShowSizeIcon = bShow; }