VC6.0源码 图片浏览器

#include "ReadPIC.h" #include "resource.h" #include <afxdlgs.h> // #define IDC_HSCROLLBAR 1024 // #define IDC_VSCROLLBAR 1025 CMyApp theApp; BOOL CMyApp::InitInstance() { m_pMainWnd = new CMainWindow; m_pMainWnd->ShowWindow(m_nCmdShow); return TRUE; } CMainWindow::CMainWindow() { //注册窗口类 LPCTSTR lpszClassName = AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW,::LoadCursor(NULL,IDC_ARROW), (HBRUSH)(COLOR_3DFACE),::LoadIcon(theApp.m_hInstance,(LPCTSTR)IDI_ICON)); //修改类名 WNDCLASSA wndclass; if (::GetClassInfo(AfxGetInstanceHandle(),lpszClassName,&wndclass)) { wndclass.lpszClassName = "MyReadPIC"; lpszClassName = wndclass.lpszClassName; } //重新注册窗口类 AfxRegisterClass(&wndclass); //创建窗口 CreateEx(0,lpszClassName,"图片浏览器",WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL); } void CMainWindow::PostNcDestroy() { delete this; } //消息映射表 BEGIN_MESSAGE_MAP(CMainWindow,CWnd) ON_WM_CREATE() ON_WM_PAINT() ON_WM_DESTROY() ON_COMMAND(ID_MENU_OPENFILE,OnOpenFile) ON_COMMAND(ID_MENU_EXIT,OnExit) ON_COMMAND(ID_MENU_TOPMOST,OnTopMost) ON_COMMAND(ID_PREVIOUS,OnBtnPrevious) ON_COMMAND(ID_NEXT,OnBtnNext) ON_COMMAND(ID_ZOOM_IN,OnBtnZoomIn) ON_COMMAND(ID_ZOOM_OUT,OnBtnZoomOut) ON_COMMAND(ID_SHOW_FROM_WND,OnBtnShowFromWnd) ON_COMMAND(ID_SHOW_ORIG,OnBtnShowOrig) ON_WM_SIZE() END_MESSAGE_MAP() //窗口初始化 BOOL CMainWindow::OnCreate(LPCREATESTRUCT) { m_hMenu = ::LoadMenu(theApp.m_hInstance,(LPCTSTR)IDR_MENU); ::SetMenu(m_hWnd,m_hMenu); m_bTopMost=FALSE; m_pView = NULL; m_bShowFromWnd = TRUE; m_strCurrFileName.Empty(); m_ToolBar.CreateEx(this,TBSTYLE_FLAT|TBSTYLE_TRANSPARENT|TBSTYLE_LIST,WS_CHILD | WS_VISIBLE | CBRS_BOTTOM/*| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC*/ ); //创建工具栏 m_ToolBar.LoadToolBar(IDR_TOOLBAR1);//加载工具栏 m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_FROM_WND,FALSE); //控件条定位 RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,0); //创建PICView CCreateContext pContext; CWnd* pFrameWnd = this; pContext.m_pCurrentDoc = new CDocument; pContext.m_pNewViewClass = RUNTIME_CLASS(CPICView); m_pView =(CPICView *) ((CFrameWnd*)pFrameWnd)->CreateView(&pContext); ASSERT(m_pView); m_pView->m_nMapMode = MM_TEXT; m_pView->ShowWindow(SW_NORMAL); //调整m_pView大小 CRect rectWindow,rttb; GetClientRect(rectWindow); m_ToolBar.GetWindowRect(rttb); rectWindow.bottom -= (rttb.bottom - rttb.top); m_pView->MoveWindow(rectWindow); delete pContext.m_pCurrentDoc; //初始化完成 m_bInit = FALSE; CenterWindow(); return TRUE; } void CMainWindow::OnDestroy() { CWnd::OnDestroy(); } void CMainWindow::OnPaint() { if (m_bInit) return; CRect rectWindow,rttb; GetClientRect(rectWindow); m_ToolBar.GetWindowRect(rttb); rectWindow.bottom -= (rttb.bottom - rttb.top); m_pView->MoveWindow(rectWindow); CWnd::OnPaint(); } void CMainWindow::OnExit() { ::PostMessage(m_hWnd,WM_CLOSE,0,0);/*exit(0);*/ } void CMainWindow::OnTopMost() { if(m_bTopMost) { ::CheckMenuItem(::GetMenu(m_hWnd),ID_MENU_TOPMOST,MF_UNCHECKED); ::SetWindowPos(m_hWnd,HWND_NOTOPMOST,0,0,0,0, SWP_NOMOVE|SWP_NOREDRAW|SWP_NOSIZE); m_bTopMost=FALSE; } else { ::CheckMenuItem(m_hMenu,ID_MENU_TOPMOST,MF_CHECKED); ::SetWindowPos(m_hWnd,HWND_TOPMOST,0,0,0,0, SWP_NOMOVE|SWP_NOREDRAW|SWP_NOSIZE); m_bTopMost=TRUE; } } void CMainWindow::OnOpenFile() { CFileDialog dlg(TRUE,NULL,NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"所有文件(*.*)|*.*|JPEG图片(*.jpg)|*.jpg|bmp位图(*.bmp)|*.bmp|"); if(dlg.DoModal()!=IDOK) return; m_pView->LoadPicture(dlg.GetFileName(),m_bShowFromWnd); m_strCurrFileName = dlg.GetPathName(); m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_FROM_WND,!m_bShowFromWnd); m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_ORIG,m_bShowFromWnd); char str[300]; sprintf(str,"%s 图片浏览器",dlg.GetPathName()); SetWindowText(str); } //大小改变，调整窗体大小 void CMainWindow::OnSize(UINT nType, int cx, int cy) { if (m_bInit) return; CRect rectWindow,rttb; GetClientRect(rectWindow); m_ToolBar.GetWindowRect(rttb); rectWindow.bottom -= (rttb.bottom - rttb.top); m_pView->MoveWindow(rectWindow); RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,0); CWnd::OnSize(nType, cx, cy); } //工具栏 //上一个 void CMainWindow::OnBtnPrevious() { ShowNextPicture(FALSE); } //下一个 void CMainWindow::OnBtnNext() { ShowNextPicture(TRUE); } //放大 void CMainWindow::OnBtnZoomIn() { if(m_pView->ChangPicSize(TRUE)) { m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_ORIG); m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_FROM_WND); } } //缩小 void CMainWindow::OnBtnZoomOut() { if (m_pView->ChangPicSize(FALSE)) { m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_ORIG); m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_FROM_WND); } } //根据窗口大小最佳显示 void CMainWindow::OnBtnShowFromWnd() { m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_FROM_WND,FALSE); m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_ORIG); m_pView->SetShowMode(m_bShowFromWnd = TRUE); } //显示图片实际大小 void CMainWindow::OnBtnShowOrig() { m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_FROM_WND); m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_ORIG,FALSE); m_pView->SetShowMode(m_bShowFromWnd = FALSE); } //寻找下一个文件 //参数bNext指定是往上寻找还是往下寻找 CString CMainWindow::FindNextFile(BOOL bNext) { CFileFind ff; CString strDir; CString strFirstFile,strCurrFile,strPrevFile,strRetnFile; BOOL bFind = FALSE; strDir = m_strCurrFileName.Left(m_strCurrFileName.ReverseFind('\\')+1); strDir += "*.*"; int n = 0; BOOL bRet = ff.FindFile(strDir); while(bRet) { bRet = ff.FindNextFile(); if (ff.IsDirectory() || ff.IsDots()) continue;//目录 跳过 strCurrFile = ff.GetFilePath(); //获取文件名 n++; if (strFirstFile.IsEmpty()) strFirstFile = strCurrFile; if (m_strCurrFileName == strCurrFile) //找到 { bFind = TRUE; //标志 找到了 if (bNext) //参数 指示寻找下一个 { if (!bRet) //如果当前文件是最后一个,则返回第一个文件 {//如果当前文件是最后一个,则返回第一个文件 strRetnFile = strFirstFile; break; } } else {//寻找前一个 if (!strPrevFile.IsEmpty()) //当前文件不是第一个文件 { strRetnFile = strPrevFile; break; } } continue; } if (bFind == TRUE && bNext) //已经找到了,而且是要求找出下一个文件,那么当前文件就是要找的 { strRetnFile = strCurrFile; break; } strPrevFile = strCurrFile; } //如果已经找到了,但是strRetnFile为空,则说明这属于两种情况 //1 要求找出前一个,但是当前文件是第一个,则要找的是文件夹中的最后一个文件 //2 要求找出后一个,但是当前文件是最后一个,则要找的是文件夹中的第一个文件 if (bFind == TRUE && strRetnFile.IsEmpty()) { if (!bNext) {//第一种情况 strRetnFile = strCurrFile; } else {//第二种情况 strRetnFile = strFirstFile; } } ff.Close(); return strRetnFile; } //显示下一张图片 void CMainWindow::ShowNextPicture(BOOL bNext) { CString strNextFile,strCurrFile; strCurrFile = m_strCurrFileName; if (strCurrFile.IsEmpty()) return; do { strNextFile = FindNextFile(bNext); m_strCurrFileName = strNextFile; } while (!m_pView->LoadPicture(strNextFile,m_bShowFromWnd) && //成功显示 strCurrFile!=strNextFile && !strNextFile.IsEmpty()); m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_FROM_WND,!m_bShowFromWnd); m_ToolBar.GetToolBarCtrl().EnableButton(ID_SHOW_ORIG,m_bShowFromWnd); char str[300]; sprintf(str,"%s 图片浏览器",strNextFile); SetWindowText(str); }