PictureShow(MFC图像浏览显示）

// PictureShowView.cpp : implementation of the CPictureShowView class // #include "stdafx.h" #include "PictureShow.h" #include "PictureShowDoc.h" #include "PictureShowView.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif #include "MainFrm.h" ///////////////////////////////////////////////////////////////////////////// // CPictureShowView IMPLEMENT_DYNCREATE(CPictureShowView, CScrollView) BEGIN_MESSAGE_MAP(CPictureShowView, CScrollView) //{{AFX_MSG_MAP(CPictureShowView) ON_COMMAND(ID_FILE_OPEN, OnFileOpen) ON_WM_MOUSEMOVE() ON_WM_LBUTTONDOWN() ON_WM_CREATE() ON_WM_SIZE() ON_WM_ERASEBKGND() ON_COMMAND(ID_LAST, OnLast) ON_COMMAND(ID_NEXT, OnNext) ON_UPDATE_COMMAND_UI(ID_NEXT, OnUpdateNext) ON_UPDATE_COMMAND_UI(ID_LAST, OnUpdateLast) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CPictureShowView construction/destruction CPictureShowView::CPictureShowView() { // TODO: add construction code here // m_vScroll=0; m_clientOrg=0; m_client=0; m_indexSel=-1; m_indexOrg=-1; m_pics.RemoveAll(); m_strFiles.RemoveAll(); m_dcDraw=m_memDraw=false; openFileCount=0; IDS_PICTURE=400; } CPictureShowView::~CPictureShowView() { } BOOL CPictureShowView::PreCreateWindow(CREATESTRUCT& cs) { // TODO: Modify the Window class or styles here by modifying // the CREATESTRUCT cs return CScrollView::PreCreateWindow(cs); } ///////////////////////////////////////////////////////////////////////////// // CPictureShowView drawing void CPictureShowView::OnDraw(CDC* pDC) { CPictureShowDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); //this->m_dcCompatibleDraw.SetViewportOrg(-m_sizeViewport.cx,-m_sizeViewport.cy); /* this->GetClientRect(&m_client); CSize sizeTotal; sizeTotal=this->GetTotalSize(); if(m_dcCompatibleDraw.m_hDC) m_dcCompatibleDraw.DeleteDC(); m_dcCompatibleDraw.CreateCompatibleDC(pDC); CBitmap bitmap; bitmap.CreateCompatibleBitmap(pDC,sizeTotal.cx,sizeTotal.cy); m_dcCompatibleDraw.SelectObject(&bitmap); CBrush *pBrush; pBrush=CBrush::FromHandle((HBRUSH)(GetStockObject(WHITE_BRUSH))); m_dcCompatibleDraw.FillRect(CRect(0,0,sizeTotal.cx,sizeTotal.cy),pBrush); if(m_pics.GetSize()) { this->ShowSmallPic(&m_dcCompatibleDraw); } if(m_indexSel!=-1) { this->ShowBigPic(&m_dcCompatibleDraw,m_indexSel); } pDC->BitBlt(0,0,sizeTotal.cx,sizeTotal.cy,&m_dcCompatibleDraw,0,0,SRCCOPY); */ /* this->GetClientRect(&m_client); if(m_pics.GetSize()) { this->ShowSmallPic(pDC); } if(m_indexSel!=-1) { this->ShowBigPic(pDC,m_indexSel); }*/ CClientDC dc(this); m_clientOrg=m_client; this->GetClientRect(&m_client); if(m_indexSel!=m_indexOrg) { this->DoIndexChanged(pDC,&m_dcSmall,&m_dcBig,m_indexSel,m_indexOrg); } if(m_memDraw==true) { this->memdcShowSmallPic(pDC); this->memdcShowBigPic(pDC); m_memDraw=false; m_dcDraw=true; } if(m_dcDraw==true) { if(m_client!=m_clientOrg) { this->memdcShowBigPic(pDC); //this->memdcShowSmallPic(pDC); } CSize size; if(m_client.Width()>m_pics.GetSize()*100) { size.cx=m_client.Width(); size.cy=100; pDC->BitBlt(0,m_client.Height()-100,size.cx*2,m_client.Height(),&m_dcSmall,0,0,SRCCOPY); } else { size.cx=m_pics.GetSize()*100; size.cy=100; pDC->BitBlt(0,m_client.Height()-100,m_pics.GetSize()*100,m_client.Height(),&m_dcSmall,0,0,SRCCOPY); } dc.BitBlt(0,0,m_client.Width(),m_client.Height()-100,&m_dcBig,0,0,SRCCOPY); } // TODO: add draw code for native data here } ///////////////////////////////////////////////////////////////////////////// // CPictureShowView diagnostics #ifdef _DEBUG void CPictureShowView::AssertValid() const { CScrollView::AssertValid(); } void CPictureShowView::Dump(CDumpContext& dc) const { CScrollView::Dump(dc); } CPictureShowDoc* CPictureShowView::GetDocument() // non-debug version is inline { ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CPictureShowDoc))); return (CPictureShowDoc*)m_pDocument; } #endif //_DEBUG ///////////////////////////////////////////////////////////////////////////// // CPictureShowView message handlers void CPictureShowView::OnFileOpen() { // TODO: Add your command handler code here //this->ResetAllDate(); CString strPath; GetCurrentDirectory(MAX_PATH,strPath.GetBuffer(MAX_PATH)); strPath.ReleaseBuffer(); CFileDialog dlg(true); dlg.m_ofn.lpstrTitle="打开图片"; dlg.m_ofn.lpstrDefExt="jpg"; dlg.m_ofn.lpstrFilter="jpg image\0*.jpg\0Bitmap image\0*.bmp\0gif image\0*.gif\0all file\0*.*\0\0"; dlg.m_ofn.lpstrInitialDir=strPath;//对话框初始选择的路径； dlg.m_ofn.Flags|=OFN_ALLOWMULTISELECT; dlg.m_ofn.nMaxFile = 4000; //这必不可少 要不然打开过多文件 会报错 char* pc = new char[4000]; dlg.m_ofn.lpstrFile = pc; dlg.m_ofn.lpstrFile[0] = NULL; if(IDOK==dlg.DoModal()) { openFileCount++; if(openFileCount!=1) { MessageBox("再次打开待改进功能 程序即将退出"); PostQuitMessage(0); } int count=0; POSITION pos=dlg.GetStartPosition(); while(pos!=NULL) { CString *pstr=new CString(dlg.GetNextPathName(pos)); m_strFiles.Add(pstr); count++; } if(count!=0 && count!=-1) { m_indexSel=0; m_indexOrg=0; } this->LoadPicsFormStr(); this->CreateStatic(); m_memDraw=true; this->SetPicInfoOnPane(); this->Invalidate(); } } BOOL CPictureShowView::LoadPicsFormStr() { for(int i=0;i<m_strFiles.GetSize();i++) { CStaticPicture *p=new CStaticPicture; p->Load(*((CString *)m_strFiles.GetAt(i))); m_pics.Add(p); } return m_pics.GetSize() ? true : false; } void CPictureShowView::OnInitialUpdate() { CScrollView::OnInitialUpdate(); this->SetScrollSizes(MM_TEXT,CSize(600,100)); // TODO: Add your specialized code here and/or call the base class } void CPictureShowView::CalcWindowRect(LPRECT lpClientRect, UINT nAdjustType) { // TODO: Add your specialized code here and/or call the base class CScrollView::CalcWindowRect(lpClientRect, nAdjustType); } void CPictureShowView::ShowSmallPic(CDC *pDC) { int width=0; for(int i=0;i<m_pics.GetSize();i++) { CRect rect; /* width=i*100; rect.left=width; rect.top=m_client.bottom-100; rect.right=width+100; rect.bottom=m_client.bottom;*/ width=i*100; rect.left=width; rect.top=0; rect.right=width+100; rect.bottom=100; /* if(!((CStaticPicture *)(m_pics.GetAt(i)))->m_hWnd) //((CStaticPicture *)(m_pics.GetAt(i)))->Detach(); ((CStaticPicture *)(m_pics.GetAt(i)))->Create("STATIC","",WS_CHILD | WS_VISIBLE | SS_NOTIFY | SS_BITMAP,rect,this,IDS_PICTURE+i); */ rect.DeflateRect(10,10); ((CStaticPicture *)(m_pics.GetAt(i)))->Render(pDC,rect); } if(width>m_client.right) { this->SetScrollSizes(MM_TEXT,CSize(m_pics.GetSize()*100,100)); } if(m_indexSel!=-1) { this->DrawBorder(pDC,m_indexSel); } } void CPictureShowView::ShowBigPic(CDC *pDC,int index) { CRect rectClientBig; CRect rectDraw; CSize sizePic; sizePic=((CStaticPicture *)(m_pics.GetAt(index)))->GetImageSize(); rectClientBig=m_client; rectClientBig.bottom=m_client.bottom-100; CPoint point=rectClientBig.CenterPoint(); rectDraw.left=point.x-sizePic.cx/2; rectDraw.right=point.x+sizePic.cx/2; rectDraw.top=point.y-sizePic.cy/2; rectDraw.bottom=point.y+sizePic.cy/2; while(rectDraw.Width()>rectClientBig.Width() || rectDraw.Height()>rectClientBig.Height()) { rectDraw.DeflateRect(sizePic.cx/50,sizePic.cy/50); } // ((CStaticPicture *)(m_pics.GetAt(index)))->Create("STATIC","",WS_CHILD | WS_VISIBLE | SS_NOTIFY |