MFC 静态拆分视图窗口

#pragma once
#include <afxcview.h>　　//树形视图类头文件
class CSelectView :
    public CTreeView
{
    DECLARE_DYNCREATE(CSelectView)
    CSelectView();
protected:
    //virtual void OnDraw(CDC* pDC) override;
private:
    CTreeCtrl *m_pTreeCtrl;
public:
    virtual void OnInitialUpdate();
    DECLARE_MESSAGE_MAP()
    afx_msg void OnTvnSelchanged(NMHDR *pNMHDR, LRESULT *pResult);
};


#include <afxext.h>　　//窗口视图类头文件
// CMyDialog 窗体视图

class CMyDialog : public CFormView
{
    DECLARE_DYNCREATE(CMyDialog)

protected:
    CMyDialog();           // 动态创建所使用的受保护的构造函数
    virtual ~CMyDialog();


    virtual void OnDraw(CDC* pDC) override;

public:
#ifdef AFX_DESIGN_TIME
    enum { IDD = IDD_DIALOG1 };
#endif
#ifdef _DEBUG
    virtual void AssertValid() const;
#ifndef _WIN32_WCE
    virtual void Dump(CDumpContext& dc) const;
#endif
#endif


    virtual void OnDragLeave() override;

protected:
    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

    DECLARE_MESSAGE_MAP()
};

//CSelectView类

#include "CSelectView.h"
#include "MyApp.h"

IMPLEMENT_DYNCREATE(CSelectView,CTreeView)


//窗口类
#include "resource.h"
#include "CMyDialog.h"


// CMyDialog

IMPLEMENT_DYNCREATE(CMyDialog, CFormView)

BOOL MyWnd::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
    //拆分窗口(一行两列)
    m_splitter.CreateStatic(this, 1, 2);
    //创建视图类对象
　　//第一列创建树形视图类,第二列创建对话框视图类
    m_splitter.CreateView(0, 0, RUNTIME_CLASS(CSelectView),
        CSize(200, 200), pContext);
    m_splitter.CreateView(0, 1, RUNTIME_CLASS(CMyDialog),
        CSize(200, 200), pContext);

    return TRUE;
}

void CSelectView::OnInitialUpdate()
{
    CTreeView::OnInitialUpdate();

    // TODO: 在此添加专用代码和/或调用基类
    m_pTreeCtrl = &GetTreeCtrl();//获取树形视图中的树形控件对象

//添加数据和样式,也可以添加图标,不过我没弄,
    m_pTreeCtrl->ModifyStyle(0, TVS_HASLINES | TVS_LINESATROOT | TVS_HASBUTTONS| TVS_SHOWSELALWAYS);

    m_pTreeCtrl->InsertItem(TEXT("显示数据"), 0,0,TVI_ROOT);
    m_pTreeCtrl->InsertItem(TEXT("添加数据"), 0, 0, TVI_ROOT);
    m_pTreeCtrl->InsertItem(TEXT("修改数据"), 0, 0, TVI_ROOT);
    m_pTreeCtrl->InsertItem(TEXT("删除数据"), 0, 0, TVI_ROOT);

}

void CSelectView::OnTvnSelchanged(NMHDR *pNMHDR, LRESULT *pResult)
{
    LPNMTREEVIEW pNMTreeView = reinterpret_cast<LPNMTREEVIEW>(pNMHDR);
    // TODO: 在此添加控件通知处理程序代码
    *pResult = 0;
    HTREEITEM hSel = pNMTreeView->itemNew.hItem;　　//获取树控件选中的项
    CString str = m_pTreeCtrl->GetItemText(hSel);　　//获取选中项的字符串数据
    //根据选择的项发送自定义消息(NM_A,NM_B)来更改右边的视图窗口类
　　//我就随便定义了两个消息NM_A,NM_B,都响应OnMyChange函数
　　
    if (str == TEXT("添加数据"))
    {
        ::PostMessage(AfxGetMainWnd()->GetSafeHwnd(),NM_A, (WPARAM)NM_A, 0);
    }
    else if (str == TEXT("修改数据"))
    {
        ::PostMessage(AfxGetMainWnd()->GetSafeHwnd(), NM_B, (WPARAM)NM_B, 0);
    }

}

BEGIN_MESSAGE_MAP(MyWnd,CFrameWnd)
    ON_WM_CREATE()
    ON_COMMAND(ID_BTN_NEW,&MyWnd::OnBtnNew)
    ON_COMMAND(ID_BTN_EDIT,&MyWnd::OnBtnEdit)
    ON_COMMAND(ID_BTN_DELETE,&MyWnd::OnBtnDelete)
    ON_COMMAND(ID_BTN_QUIT,&MyWnd::OnBtnQuit)
    ON_COMMAND(ID_BTN_MIN,&MyWnd::OnBtnMin)
    ON_COMMAND(ID_BTN_FIND,&MyWnd::OnBtnFind)
    ON_WM_PAINT()
    ON_MESSAGE(NM_A,&MyWnd::OnMyChange)//自定义消息函数
    ON_MESSAGE(NM_B,&MyWnd::OnMyChange)//自定义消息函数
    ON_WM_SIZE()
END_MESSAGE_MAP()

LRESULT MyWnd::OnMyChange(WPARAM wParam, LPARAM lParam)
{
    CCreateContext context;//动态创建机制结构体
    switch (wParam)
    {
    case NM_A://创建IDD_DIALOG1对话框视图类CMyDialog 
    {
        context.m_pNewViewClass = RUNTIME_CLASS(CMyDialog);//要创建的视图类
        context.m_pCurrentFrame = this;　　　　//当前窗口类
        context.m_pLastView = (CFormView*)m_splitter.GetPane(0, 1); //要在哪列创建新的视图类,(我这是要在右边,也就是第0行1列)
        m_splitter.DeleteView(0, 1);　　//删除原来的视图类
        m_splitter.CreateView(0, 1, RUNTIME_CLASS(CMyDialog), CSize(200, 200), &context);　　//动态创建新的视图类(大小无所谓,最后都是平铺分隔的左右窗口)
        CMyDialog *pNewView = (CMyDialog*)m_splitter.GetPane(0, 1); //获取新创建的视图类对象
        m_splitter.RecalcLayout();　　
        pNewView->OnInitialUpdate();　　//初始化新视图类
        m_splitter.SetActivePane(0, 1);　　//激活新的视图类

    }
        break;
    case NM_B: //创建IDD_DIALGO2对话框视图类MyAddDlg
    {
        context.m_pNewViewClass = RUNTIME_CLASS(MyAddDlg);
        context.m_pCurrentFrame = this;
        context.m_pLastView = (CFormView*)m_splitter.GetPane(0, 1);
        m_splitter.DeleteView(0, 1);
        m_splitter.CreateView(0, 1, RUNTIME_CLASS(MyAddDlg), CSize(200, 200), &context);
        MyAddDlg *pNewView = (MyAddDlg*)m_splitter.GetPane(0, 1);
        m_splitter.RecalcLayout();
        pNewView->OnInitialUpdate();
        m_splitter.SetActivePane(0, 1);

    }
        break;
    case NM_C:
        break;
    }
    /*if (wParam == NM_A)
    {
        MessageBox(TEXT("添加数据"));
    }
    else if(wParam==NM_B){
        MessageBox(TEXT("修改数据"));
    }*/

    return 0;
}