怎样在一个一般窗口或是Dialog上面使用分割窗口.

王朝vc·作者佚名  2006-01-08
窄屏简体版  字體: |||超大  

小弟初次贴文,水平不高,希望不要丢东西.呵呵.

大家都知道可以在一个CFrameWnd上面使用CSplitterWnd以做出分割窗口的效果(呵呵,顺便,分割窗口可是MFC程序的一大特色.原来(Delphi没有加上这个的支持之前),你只要看到了分割窗口,几乎可以肯定是MFC的.(哈哈,当然,也有人用SDK做一个出来,有这种闲的家伙么?呵呵,好象废话太多了点).

可是现实中的情况是,有的时候我们要在一个一般的CWnd上面做一个SplitterWnd的效果.怎么办呢?MS的SplitterWnd只可以用于CFrameWnd(好像也可以用于CView类,MS的文档里说的).之所以有这个限制是因为TMD狗屎MS在SplitterWnd里面把所有要取Parent窗口的地方都设为CFrameWnd了.但实际上,它又没有用到CFrameWnd的任何特性.所以我们应该怎么做,好像是很明显的了.就是去翻MS的SplitterWnd的源码,把所有的用到了Parent的地方都改掉.啊!!!不是的,这还叫狗屁OOP?应该是重载一个我们自己的.

头文件:

// SplitWnd.h : implementation file

//

class CxSplitterWnd : public CSplitterWnd

{

// Construction

public:

CxSplitterWnd() {};

virtual ~CxSplitterWnd() {};

// Operations

public:

// Overrides

// ClassWizard generated virtual function overrides

//{{AFX_VIRTUAL(CxSplitterWnd)

//}}AFX_VIRTUAL

// Implementation

public:

// These are the methods to be overridden

virtual void StartTracking(int ht);

virtual CWnd* GetActivePane(int* pRow = NULL, int* pCol = NULL);

virtual void SetActivePane( int row, int col, CWnd* pWnd = NULL );

virtual BOOL OnCommand(WPARAM wParam, LPARAM lParam);

virtual BOOL OnNotify( WPARAM wParam, LPARAM lParam, LRESULT* pResult );

virtual BOOL OnWndMsg( UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pResult );

// Generated message map functions

protected:

//}}AFX_MSG(CxSplitterWnd)

// NOTE - the ClassWizard will add and remove member functions here.

//}}AFX_MSG

DECLARE_MESSAGE_MAP()

};

还有实现文件:

// SplitWnd.cpp : implementation file

//

#include "stdafx.h"

#include "SplitWnd.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

// HitTest return values (values and spacing between values is important)

// Had to adopt this because it has module scope

enum HitTestValue

{

noHit = 0,

vSplitterBox = 1,

hSplitterBox = 2,

bothSplitterBox = 3, // just for keyboard

vSplitterBar1 = 101,

vSplitterBar15 = 115,

hSplitterBar1 = 201,

hSplitterBar15 = 215,

splitterIntersection1 = 301,

splitterIntersection225 = 525

};

/////////////////////////////////////////////////////////////////////////////

// CxSplitterWnd

BEGIN_MESSAGE_MAP(CxSplitterWnd, CSplitterWnd)

//{{AFX_MSG_MAP(CxSplitterWnd)

// NOTE - the ClassWizard will add and remove mapping macros here.

//}}AFX_MSG_MAP

END_MESSAGE_MAP()

CWnd* CxSplitterWnd::GetActivePane(int* pRow, int* pCol)

{

ASSERT_VALID(this);

CWnd* pView = GetFocus();

// make sure the pane is a child pane of the splitter

if (pView != NULL && !IsChildPane(pView, pRow, pCol))

pView = NULL;

return pView;

}

void CxSplitterWnd::SetActivePane( int row, int col, CWnd* pWnd)

{

// set the focus to the pane

CWnd* pPane = pWnd == NULL ? GetPane(row, col) : pWnd;

pPane->SetFocus();

}

void CxSplitterWnd::StartTracking(int ht)

{

ASSERT_VALID(this);

if (ht == noHit)

return;

// GetHitRect will restrict 'm_rectLimit' as appropriate

GetInsideRect(m_rectLimit);

if (ht >= splitterIntersection1 && ht <= splitterIntersection225)

{

// split two directions (two tracking rectangles)

int row = (ht - splitterIntersection1) / 15;

int col = (ht - splitterIntersection1) % 15;

GetHitRect(row + vSplitterBar1, m_rectTracker);

int yTrackOffset = m_ptTrackOffset.y;

m_bTracking2 = TRUE;

GetHitRect(col + hSplitterBar1, m_rectTracker2);

m_ptTrackOffset.y = yTrackOffset;

}

else if (ht == bothSplitterBox)

{

// hit on splitter boxes (for keyboard)

GetHitRect(vSplitterBox, m_rectTracker);

int yTrackOffset = m_ptTrackOffset.y;

m_bTracking2 = TRUE;

GetHitRect(hSplitterBox, m_rectTracker2);

m_ptTrackOffset.y = yTrackOffset;

// center it

m_rectTracker.OffsetRect(0, m_rectLimit.Height()/2);

m_rectTracker2.OffsetRect(m_rectLimit.Width()/2, 0);

}

else

{

// only hit one bar

GetHitRect(ht, m_rectTracker);

}

// steal focus and capture

SetCapture();

SetFocus();

// make sure no updates are pending

RedrawWindow(NULL, NULL, RDW_ALLCHILDREN | RDW_UPDATENOW);

// set tracking state and appropriate cursor

m_bTracking = TRUE;

OnInvertTracker(m_rectTracker);

if (m_bTracking2)

OnInvertTracker(m_rectTracker2);

m_htTrack = ht;

SetSplitCursor(ht);

}

/////////////////////////////////////////////////////////////////////////////

// CSplitterWnd command routing

BOOL CxSplitterWnd::OnCommand(WPARAM wParam, LPARAM lParam)

{

if (CWnd::OnCommand(wParam, lParam))

return TRUE;

// route commands to the splitter to the parent frame window

return GetParent()->SendMessage(WM_COMMAND, wParam, lParam);

}

BOOL CxSplitterWnd::OnNotify( WPARAM wParam, LPARAM lParam, LRESULT* pResult )

{

if (CWnd::OnNotify(wParam, lParam, pResult))

return TRUE;

// route commands to the splitter to the parent frame window

*pResult = GetParent()->SendMessage(WM_NOTIFY, wParam, lParam);

return TRUE;

}

BOOL CxSplitterWnd::OnWndMsg(UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pResult)

{

// The code line below is necessary if using CxSplitterWnd in a regular dll

// AFX_MANAGE_STATE(AfxGetStaticModuleState());

return CWnd::OnWndMsg(message, wParam, lParam, pResult);

}

把这个文件给包含进你的工程,就可以用CxSplitterWnd了.

 
 
 
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