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可切换视图的单文档静态分割窗口总结

2013年05月02日 ⁄ 综合 ⁄ 共 4892字 ⁄ 字号 评论关闭
经过多方寻找资料和反复试验,终于实现了在单文档程序中分割窗口,并且可以对视图进行随意切换,以下是比较详尽的步骤:

  1,向导第四步,选高级,“使用分割栏”挑勾,原始VIEW类为CMyView,派生自CVIEW类
  2,要想加入从其他VIEW类派生的类,如CFormView等,应该在StdAfx.h中加入#include <afxcview.h>
  3,加入新类CTView,派生自CTreeView,编辑初始化CTView::OnInitialUpdate() 代码如下
  
    void CTView::OnInitialUpdate()
{
 CTreeView::OnInitialUpdate();

 // TODO: Add your specialized code here and/or call the base class
 CTreeCtrl &treeCtrl=GetTreeCtrl();
 DWORD dwStyle=::GetWindowLong(treeCtrl.m_hWnd,GWL_STYLE);
 dwStyle|=TVS_HASBUTTONS|TVS_HASLINES|TVS_LINESATROOT;
 ::SetWindowLong(treeCtrl.m_hWnd,GWL_STYLE,dwStyle);
 HTREEITEM hRoot,hCurPos;
 TV_INSERTSTRUCT tInsert;
 tInsert.hParent=TVI_ROOT;
 tInsert.hInsertAfter=TVI_LAST;
 tInsert.item.mask=TVIF_TEXT|TVIF_PARAM;
    tInsert.item.pszText="分类";
 tInsert.item.lParam=0;
 hRoot=treeCtrl.InsertItem(&tInsert);
 char *plant[4]={"编程","小说","科学","人文"};
 char *cell[4][5]={
        {"VC++","Delphi","BCB","",""},//主系统运行日志
  {"武侠","侦探","言情","恐怖","悬疑"},
  {"天文","地理","自然","",""},
  {"社会科学","","","",""}
 };
 int i,j;
 for(i=0;i<4;i++)
 {
  tInsert.hParent=hRoot;
  tInsert.item.pszText=plant[i];
  hCurPos=treeCtrl.InsertItem(&tInsert);
  for(j=0;j<5;j++)
  {
   tInsert.hParent=hCurPos;
   if(cell[i][j]!="")
   {
        tInsert.item.pszText=cell[i][j];
     treeCtrl.InsertItem(&tInsert);}
  }
  //treeCtrl.Expand(hCurPos,TVE_EXPAND);

 }
 treeCtrl.Expand(hRoot,TVE_EXPAND);
  
}

  4,加入CFormView派生类,先加入一个对话框资源,在对话框属性中,指定STYLES->STYLE:child
BORDER:NONE,不选Title Bar 在More Styles中不选可见。然后在新建的CFormView的派生类CFView中指定对话框为刚建的对话框

  5,因为每个CView派生类都已经继承了GetDocument()函数,因此只要在调用时直接调用无需再在其中声明GetDocument()函数了,调用后再进行类型强制转换应该就可以了。比方,在cmyview.h中注释掉
// Attributes
// CMyDoc* GetDocument();
在cmyview.cpp中注释掉
//CMyDoc* CMyView::GetDocument() // non-debug version is inline
//{
 //ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyDoc)));
 //return (CMyDoc*)m_pDocument;
//}

并在OnDraw中试用如下代码
void CMyView::OnDraw(CDC* pDC)
{
 CMyDoc* pDoc =(CMyDoc*)CMyView:: GetDocument();
 ASSERT_VALID(pDoc);
 // TODO: add draw code for native data here
}

  7,为了使新加的view派生类能够被方便的调用,可以将这些view派生类的构造函数由protected改为public

  8,加入一个新类CMySplitter,派生自CMDIChildWnd类,然后将代码中所有的CMDIChildWnd改成CSplitterWnd
在MainFrm.h中加入#include "MySplitter.h",并将CSplitterWnd m_wndSplitter;改成
CMySplitter m_wndSplitter;

  9,给CMySplitter类加入一个publice型成员函数
   BOOL ReplaceView(int row, int col,CRuntimeClass * pViewClass,SIZE size);    
   编辑代码如下
   

BOOL CMySplitter::ReplaceView(int row, int col, CRuntimeClass *pViewClass, SIZE size)
{
CCreateContext context;
  BOOL bSetActive;
       
  
  if ((GetPane(row,col)->IsKindOf(pViewClass))==TRUE)
       return FALSE;
       
  
   // Get pointer to CDocument object so that it can be used in the creation
   // process of the new view
   CDocument * pDoc= ((CView *)GetPane(row,col))->GetDocument();
   CView * pActiveView=GetParentFrame()->GetActiveView();
   if (pActiveView==NULL || pActiveView==GetPane(row,col))
      bSetActive=TRUE;
   else
      bSetActive=FALSE;

    // set flag so that document will not be deleted when view is destroyed
 pDoc->m_bAutoDelete=FALSE;   
    // Delete existing view
   ((CView *) GetPane(row,col))->DestroyWindow();
    // set flag back to default
    pDoc->m_bAutoDelete=TRUE;
 
    // Create new view                     
  
   context.m_pNewViewClass=pViewClass;
   context.m_pCurrentDoc=pDoc;
   context.m_pNewDocTemplate=NULL;
   context.m_pLastView=NULL;
   context.m_pCurrentFrame=NULL;
  
   CreateView(row,col,pViewClass,size, &context);
  
   CView * pNewView= (CView *)GetPane(row,col);
  
   if (bSetActive==TRUE)
      GetParentFrame()->SetActiveView(pNewView);
  
   RecalcLayout();
   GetPane(row,col)->SendMessage(WM_PAINT);
  
   return TRUE;
}

    10,在MainFrm.cpp前边加上
    #include "AppDoc.h"
    #include "TView.h"
    #include "MyView.h"
    #include "FView.h"
在MainFrm.cpp 中编辑虚拟函数BOOL CMainFrame::OnCreateClient如下
    
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT /*lpcs*/,
 CCreateContext* pContext)
{

 
if (!m_wndSplitter.CreateStatic(this,1,2))
 {
  TRACE(_T("failed to create the splitter"));
  return FALSE;
 }

 if (!m_wndSplitter.CreateView(0,0,RUNTIME_CLASS(CTView),CSize(100,100),pContext))
 {
  TRACE(_T("Failed to create view in first pane"));
  return FALSE;
 }

 if (!m_wndSplitter.CreateView(0,1,RUNTIME_CLASS(CMyView),CSize(100,100),pContext))
 {
  TRACE(_T("failed to create view in second pane"));
  return FALSE;
 }

 
 return TRUE;
}
  

  11,加入两个菜单项ID_VIEW_VIEW和ID_VIEW_FVIEW分别对应两个视图,在MainFrm.h中加入成员变量
   BOOL ShowView1; 在CMainFrame::OnCreate中return 0;前边加上一行ShowView1=true;
  
   编辑两个菜单项代码如下
  
   void CMainFrame::OnViewView()
{
 // TODO: Add your command handler code here
 CMainFrame *pMainFrame=(CMainFrame*)AfxGetMainWnd();
 pMainFrame->m_wndSplitter.ReplaceView(0,1,RUNTIME_CLASS(CSplView),CSize(100,100));
    ShowView1=true;
}

void CMainFrame::OnViewFview()
{
 // TODO: Add your command handler code here
 CMainFrame *pMainFrame=(CMainFrame*)AfxGetMainWnd();
 pMainFrame->m_wndSplitter.ReplaceView(0,1,RUNTIME_CLASS(CFView),CSize(100,100));
    ShowView1=false; 
}

void CMainFrame::OnUpdateViewView(CCmdUI* pCmdUI)
{
 // TODO: Add your command update UI handler code here
   pCmdUI->SetCheck(ShowView1); 
}

void CMainFrame::OnUpdateViewFview(CCmdUI* pCmdUI)
{
 // TODO: Add your command update UI handler code here
 pCmdUI->SetCheck(!ShowView1); 
}

 

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