A Doc/View Dialog, supports Dynamic Split

• Download source files - 11.5 Kb
• Download demo project - 35.4 Kb

As you see, you can arbitrarily add DOC/View, and all the view can be resized.

Why I Write this class?

My company asked me to make a COM dialog supporting multi_Doc/View. Because this is a COM based dialog, I can't make it using this Single or Mulit_Doc Doc/View. I looked for a solution in The Code Project, Code Guru etc., but I couldn't find a suitable class and sample, so I did it myself.

What's this about?

This demo only implements the base function: you can add the Doc / view, resize the View by dragging the splitter. Here, using iterator, notice all the view changing size. This can be done better :-), and this method has some bug. For example, I can't proportionately scale the sub_split's view… I will fix it. :-)

What classes are part of this?

• CSplitterControl

  This class is like the Split, but not derived form the CSplitterWnd.

• CDisplayView

  View's base class, here all view resizing must derive form it.

How to using this class

1. Add this files into your project

   SplitterControl.h 
   SplitterControl.cpp 
   /*all view should come from CDisplayView */
   DisplayView.h 
   DisplayView.cpp

2. Add some code in your project

   /*File "MyDialog.h"*/ 
   #include <VECTOR>
   #include "SplitterControl.h" 
   #include "DisplayView.h" 
          using namespace std; 
   class CMyDlgDlg: public CDialog 
   { 
       /*…………*/ 
       void UpdateRect(CSplitterControl *pSplitter); 
       CDisplayView *AddRootView(UINT docNum, UINT viewNum,CRect 
                      rect,CSplitterControl *splitter); 
       void AddView(UINT docNum,UINT viewNum,UINT type, 
                    CSplitterControl *splitter, 
                    CView *pCurView); 
       /*…………*/ 
       /* Split vector*/ 
        CSplitterControl m_pSplit; 
        CCreateContext m_pContext; 
       /*………………*/ 
   };

3. Into the CMyDlgDlg's dialog designer

   • Add a "Picture Box", ID = "IDC_STA_SPLIT".

     It will become the root Split's position;

   • Add a "Ststic", ID = "IDC_STA_VIEW".

     It will become the region of the all View draw.

4. Copy the function implementation code from the demo project.

   void CMyDlgDlg::AddView(UINT docNum, UINT viewNum,UINT type, 
   CSplitterControl *splitter,CView *pCurView) 
   { 
     /*………… copy demp project code here */
   } 
   CDisplayView *CMyDlgDlg::AddRootView(UINT docNum, UINT viewNum, 
   CRect rect,CSplitterControl *splitter) 
   { 
     /*………… copy demp project code here */
   
   } 
   void CMyDlgDlg::UpdateRect(CSplitterControl *pSplitter) 
   { 
     /*………… copy demp project code here */
   
   } 
   BOOL CMyDlgDlg::OnInitDialog() 
   { 
     CDialog::OnInitDialog(); 
     /*……………… */
     /* TODO: Add extra initialization here  */
     /* flowwer code using init the root view. */
     CRect rc; 
     GetDlgItem(IDC_STA_SPLIT)->GetWindowRect(rc); 
     ScreenToClient(rc); 
     m_pSplit.Create(WS_CHILD | WS_VISIBLE,rc,this,IDC_STA_SPLIT); 
     m_pSplit.SetRange(300, 300, -1); 
     GetDlgItem(IDC_STA_VIEW)->GetWindowRect(rc); 
     ScreenToClient(rc); 
   /***************************************/ 
   /*In here add the root View and Document*/ 
     m_pSplit.AddRootView(0,1,rc); 
     m_pSplit.ShowWindow(SW_HIDE); 
   return TRUE;
   }

5. In the SplitterControl.cpp, add the Dialog's head file

   #include "MyDlg.h"    /*The application class */ 
   #include "MyDlgDlg.h" /*the dialog class */

I am Chinese and finish my school life last month, my English is very poor, so this article has some language error :-). I am a devoted reader of CodeProject, thanks everybody for helping me. Thanks CodeProject, thanks C++.