自定义TabCtrl控件CCoolTabCtrl，如何响应选项卡切换事件？

我使用的子类如下：
.h文件////////////////////////////////////////////////////////////////
// CoolTabCtrl.h : header file                                //
//   //
// Copyright 2001 WangJun   //
// All Rights Reserved.   //
//   //
// Email: [email protected]   //
// URL:   www.vckbase.com   //
//   //
// 1.0     2001/9/30   First release version.   //
//   //
////////////////////////////////////////////////////////////////#if !defined(AFX_COOLTABCTRL_H__83DD41F0_25C9_417D_9353_777A80FAD1CF__INCLUDED_)
#define AFX_COOLTABCTRL_H__83DD41F0_25C9_417D_9353_777A80FAD1CF__INCLUDED_#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#define TCS_UP 0x0001 ///向上
#define TCS_DOWN 0x0002 ///向下
#define TCS_MONOSPACE 0x0004 ///等宽效果
#define TCS_ANIMATE 0x0008 ///窗口拉动的动画效果
#define TCS_MASK 0x000f ///掩码:所有类型值相"或",供程序内部使用/////////////////////////////////////////////////////////////////////////////
// CCoolTabCtrl windowclass CCoolTabCtrl : public CWnd
{
public:
class CPageItem
{
friend class CCoolTabCtrl; CWnd* m_pWnd; ///窗口,可以为NULL
UINT m_nStyle; ///窗口类型，0:普通，1:对话框
CString m_sText; ///文字
HICON m_hIcon; ///图标
public:
CRect m_rect;
public:
UINT GetAreaWidth(CDC *pDC);
void Draw(CDC *pDC,UINT nStyle,BOOL bActive); };
DECLARE_DYNCREATE(CCoolTabCtrl)
// Construction
public:
CCoolTabCtrl();// Attributes
public:
// Operations
public:// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CCoolTabCtrl)
//}}AFX_VIRTUAL// Implementation
public:
int GetActiveItem();
CWnd * GetPageDlg(UINT nIndex);
int GetPageCount() const;
void SetStyleMonoSpace(BOOL bEnable = TRUE);
void SetStyleDirection(int Direction); ///Direction取值:TCS_UP,TCS_DOWN
void SetStyleAnimate(BOOL bEnable = TRUE); ///允许动画bEnable = TRUE,否则为FALSE
void UpdateWindow();
BOOL m_bEraseBkgnd;
UINT GetStyle();
void SetStyle(UINT style);
void DrawFrame(CDC *pDC);
void* GetPageItem(UINT nIndex);
bool SetActivePage(int nIndex);
BOOL AddPage(CRuntimeClass* pClass,UINT nIDTemplate,LPCTSTR sText,UINT IconID = NULL);
void AddPage(CWnd *pWnd,LPCTSTR sText,UINT IconID = NULL);
void AutoSize();
void GetClientRect(LPRECT lpRect );
BOOL Create(UINT wStyle, const CRect & rect, CWnd * pParentWnd, UINT nID);
virtual ~CCoolTabCtrl(); // Generated message map functions
protected:
//{{AFX_MSG(CCoolTabCtrl)
afx_msg void OnPaint();
afx_msg BOOL OnEraseBkgnd(CDC* pDC);
afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
afx_msg void OnSizing(UINT fwSide, LPRECT pRect);
afx_msg void OnSize(UINT nType, int cx, int cy);
afx_msg void OnTimer(UINT nIDEvent);
afx_msg BOOL OnNotify( WPARAM wParam, LPARAM lParam, LRESULT* pResult );
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
private:
CFont m_font;
int m_nActivePage;
UINT m_nStyle;
UINT m_nBorder;
CPtrList m_PageList;
int step, times;
};///////////////////////////////////////////////////////////////////////////////{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.#endif // !defined(AFX_COOLTABCTRL_H__83DD41F0_25C9_417D_9353_777A80FAD1CF__INCLUDED_)
cpp文件#include "stdafx.h"
#include "CoolTabCtrl.h"#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif/////////////////////////////////////////////////////////////////////////////
// CCoolTabCtrlIMPLEMENT_DYNCREATE(CCoolTabCtrl, CWnd)#define ITEMBUTTON_HEIGHT 23static CPen _penW(PS_SOLID,1 ,RGB(255,255,255));
static CPen _penB(PS_SOLID,1 ,RGB(0,0,0));
static CPen _pen3DFace(PS_SOLID,1,GetSysColor(COLOR_3DFACE));
static CPen _pen3DLight(PS_SOLID,1,GetSysColor(COLOR_3DLIGHT));
static CPen _pen3DShadow(PS_SOLID,1,GetSysColor(COLOR_3DSHADOW));
static CPen _pen3DDKShadow(PS_SOLID,1,GetSysColor(COLOR_3DDKSHADOW));
CCoolTabCtrl::CCoolTabCtrl()
{
m_nStyle = TCS_DOWN;
m_nActivePage = -1;
m_nBorder = 1;
m_bEraseBkgnd = TRUE;
}CCoolTabCtrl::~CCoolTabCtrl()
{
POSITION pos;
CPageItem* pItem;
for(pos=m_PageList.GetHeadPosition();pos!=NULL;)
{
pItem=(CPageItem*)m_PageList.GetNext(pos);
if(pItem)
{
if(pItem->m_nStyle == 1 &&pItem->m_pWnd) ///Dialog
{
delete pItem->m_pWnd;
}
delete pItem;
pItem=NULL;
}
}
m_PageList.RemoveAll();
}
BEGIN_MESSAGE_MAP(CCoolTabCtrl, CWnd)
//{{AFX_MSG_MAP(CCoolTabCtrl)
ON_WM_PAINT()
ON_WM_ERASEBKGND()
ON_WM_LBUTTONDOWN()
ON_WM_SIZING()
ON_WM_SIZE()
ON_WM_TIMER()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CCoolTabCtrl message handlersBOOL CCoolTabCtrl::Create(UINT wStyle, const CRect &rect, CWnd *pParentWnd, UINT nID)
{
m_nStyle = wStyle & TCS_MASK;
if(m_nStyle == 0)
m_nStyle = TCS_UP;
if (CWnd::Create(AfxRegisterWndClass(CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW, AfxGetApp()->LoadStandardCursor(IDC_ARROW), (HBRUSH)GetStockObject(LTGRAY_BRUSH), NULL),
NULL,
wStyle&~TCS_MASK | WS_CLIPCHILDREN | WS_CLIPSIBLINGS,
rect,
pParentWnd,
nID))
{
LOGFONT logFont;
ZeroMemory((void*)&logFont,sizeof(logFont));
strcpy(logFont.lfFaceName,"宋体");
logFont.lfHeight = -14;
logFont.lfWeight = 400;
logFont.lfCharSet = GB2312_CHARSET;
logFont.lfOutPrecision = 3;
logFont.lfClipPrecision = 2;
logFont.lfQuality = 1;
logFont.lfPitchAndFamily = 2;
m_font.CreateFontIndirect(&logFont);
SetFont(&m_font);
return TRUE;
}
return FALSE;
}BOOL CCoolTabCtrl::OnEraseBkgnd(CDC* pDC)
{
if(m_bEraseBkgnd)
{
CRect rect;
GetWindowRect(&rect);
ScreenToClient(&rect);
//CBrush brush(GetSysColor(COLOR_3DFACE));//整个控件的背景颜色
CBrush brush;
brush.CreateStockObject(NULL_BRUSH);//创建透明刷
pDC->FillRect(rect,&brush);
}
return TRUE;
}void CCoolTabCtrl::OnPaint()
{
CPaintDC dc(this);
CPen *pOldPen = dc.GetCurrentPen();
CFont *pOldFont = dc.SelectObject(&m_font);
int nOldBkMode = dc.SetBkMode(TRANSPARENT);
CPageItem *pItem;
POSITION pos;
int nItemIndex = 0;

DrawFrame(&dc); for(pos=m_PageList.GetHeadPosition();pos!=NULL;nItemIndex++)
{
pItem=(CPageItem*)m_PageList.GetNext(pos);
if(pItem)
{
pItem->Draw(&dc,m_nStyle,(m_nActivePage==nItemIndex)?TRUE:FALSE);
} }
dc.SetBkMode(nOldBkMode);
dc.SelectObject(pOldFont);
dc.SelectObject(pOldPen);
}
void CCoolTabCtrl::AddPage(CWnd *pWnd, LPCTSTR sText, UINT IconID)
{
ASSERT(pWnd);
ASSERT(IsWindow(pWnd->m_hWnd)); CPageItem *pItem;
pItem = new CPageItem();
pItem->m_pWnd = pWnd;
if(pWnd->IsKindOf(RUNTIME_CLASS(CDialog)))
pItem->m_nStyle = 1; //Dialog
else
pItem->m_nStyle = 0; //Window
pItem->m_sText = sText;
if(IconID)
pItem->m_hIcon = AfxGetApp()->LoadIcon(IconID);
else
pItem->m_hIcon = NULL; CRect rect;
GetClientRect(rect);
pWnd->MoveWindow(rect); m_PageList.AddTail(pItem); // 如果添加的Page index不等于m_nActivePage, 则隐藏
if(m_nActivePage != m_PageList.GetCount())
{
pWnd->ShowWindow(SW_HIDE);
}
}BOOL CCoolTabCtrl::AddPage(CRuntimeClass* pClass,UINT nIDTemplate, LPCTSTR sText, UINT IconID)
{
CDialog *pDlg = (CDialog*)pClass->CreateObject();
if(pDlg != NULL)
{
if(pDlg->Create(nIDTemplate,this->GetParent()))
//if(((CWnd *)pDlg)->Create(NULL,"",WS_CHILD,CRect(0,0,0,0),this,nIDTemplate))
{
AddPage(pDlg, sText, IconID);
return TRUE;
}
}

return FALSE;
}
void CCoolTabCtrl::GetClientRect(LPRECT lpRect)
{
CWnd::GetClientRect(lpRect);
if(m_nStyle&TCS_DOWN)
{
lpRect->left += 2;
lpRect->right -= 2;
lpRect->top += 2;
lpRect->bottom -= ITEMBUTTON_HEIGHT;
}
else if(m_nStyle&TCS_UP)
{
lpRect->left += 2;
lpRect->right -= 2;
lpRect->top += ITEMBUTTON_HEIGHT;
lpRect->bottom -= 2;
}
}///////取得需要占用的宽度/////
UINT CCoolTabCtrl::CPageItem::GetAreaWidth(CDC *pDC)
{
UINT width = pDC->GetTextExtent(m_sText).cx;
if(m_hIcon)
width += 18;
return width + 9;
}void CCoolTabCtrl::CPageItem::Draw(CDC *pDC, UINT nStyle, BOOL bActive)
{
CRect rect = m_rect;
if(nStyle&TCS_DOWN)
{
if(bActive)
{
rect.top -= 2;
CBrush brush(GetSysColor(COLOR_3DFACE));
pDC->FillRect(rect,&brush);
rect.top += 1;
}
else
rect.bottom -= 1;
CBrush brush(GetSysColor(COLOR_3DFACE));
pDC->FillRect(m_rect,&brush);
pDC->SelectObject(&_penW);
pDC->MoveTo(rect.left,rect.top);
pDC->LineTo(rect.left,rect.bottom-1);

pDC->SelectObject(&_pen3DShadow);
pDC->MoveTo(rect.left+1,rect.bottom-2);
pDC->LineTo(rect.left+1,rect.bottom-1);
pDC->LineTo(rect.right-1,rect.bottom-1);
pDC->MoveTo(rect.right-2,rect.bottom-2);
pDC->LineTo(rect.right-1,rect.bottom-2);
pDC->LineTo(rect.right-1,rect.top-1); pDC->SelectObject(&_penB);
pDC->MoveTo(rect.left+2,rect.bottom);
pDC->LineTo(rect.right-2,rect.bottom);
pDC->LineTo(rect.right,rect.bottom-2);
pDC->MoveTo(rect.right,rect.top);
pDC->LineTo(rect.right,rect.bottom-1);

rect.top -= 1;
}//end of TCS_DOWN
else if(nStyle&TCS_UP)
{
CBrush brush(GetSysColor(COLOR_3DFACE));
if(bActive)
{
rect.bottom += 1;
//pDC->FillRect(rect,&brush);
pDC->FillSolidRect(rect,RGB(197,214,252));//选中按钮的背景色
rect.bottom -= 1;
}
else
{
rect.top += 2;
//pDC->FillRect(rect,&brush);
pDC->FillSolidRect(rect,RGB(220,220,220));
}
pDC->SelectObject(&_penW);
pDC->MoveTo(rect.left,rect.bottom);
pDC->LineTo(rect.left,rect.top + 2);
pDC->LineTo(rect.left + 2,rect.top);
pDC->LineTo(rect.right,rect.top); pDC->SelectObject(&_pen3DShadow);
pDC->MoveTo(rect.right - 1,rect.top);
pDC->LineTo(rect.right - 1,rect.bottom);

pDC->SelectObject(&_penB);
pDC->MoveTo(rect.right,rect.top + 1);
pDC->LineTo(rect.right,rect.bottom);
}
///////////调整位置//////////
rect.left += 5;
rect.right -= 2;
///////////显示图标//////////
if(rect.Width() > 16 && m_hIcon != NULL)
{
::DrawIconEx(pDC->m_hDC,rect.left,rect.top + 3,m_hIcon,16,16,0,NULL,DI_NORMAL);
rect.left += 18;
}
if (!m_sText.IsEmpty())
{
///////////显示文字//////////
rect.top += 5;
CString sText = m_sText;
int l = sText.GetLength();
int i;
for(i=0;i<10 && pDC->GetTextExtent(sText).cx > rect.Width();i++,l-=2)
sText = sText.Left(l-2);
if(i > 0)
{
sText = sText.Left(l-2);
sText += "...";
}
pDC->DrawText(sText, &rect, DT_LEFT /*| DT_VCENTER */| DT_SINGLELINE);
}
}////调整尺寸////
void CCoolTabCtrl::AutoSize()
{
UINT PageCount = m_PageList.GetCount();
if(PageCount < 1) return;
CPageItem *pItem;
POSITION pos;
CRect rect,ClientRect,ItemRect; GetClientRect(ClientRect);
ClientRect.DeflateRect(m_nBorder+1,m_nBorder+1);
GetWindowRect(rect);
ScreenToClient(rect);
ClientToScreen(&ClientRect);
this->GetParent()->ScreenToClient(&ClientRect);
CDC* pDC = GetDC();
CFont *pOldFont = pDC->SelectObject(&m_font); if(m_nStyle&TCS_DOWN)
{
rect.left += 6;
rect.right -= 6;
rect.bottom -= 1;
rect.top = rect.bottom - ITEMBUTTON_HEIGHT + 1;
}
else if(m_nStyle&TCS_UP)
{
rect.left += 2;
rect.right -= 6;
rect.bottom = rect.top + ITEMBUTTON_HEIGHT;
}
ItemRect = rect;
int AreaWidth = 0,ItemMaxWidth,ItemIndex=0;
ItemMaxWidth = rect.Width()/m_PageList.GetCount();
BOOL bMonoSpace = ((m_nStyle&TCS_MONOSPACE) == TCS_MONOSPACE)?1:0;
////////设置按钮初始宽度，并得到按钮所需占用的总宽度///////
for(pos=m_PageList.GetHeadPosition();pos!=NULL;ItemIndex++)
{
pItem=(CPageItem*)m_PageList.GetNext(pos);
if(pItem)
{
if(!bMonoSpace)
ItemMaxWidth = pItem->GetAreaWidth(pDC);
AreaWidth += ItemMaxWidth;
ItemRect.right = ItemRect.left+ItemMaxWidth-1;
pItem->m_rect = ItemRect;
ItemRect.left = ItemRect.right + 1;
if(pItem->m_pWnd)
pItem->m_pWnd->MoveWindow(ClientRect);
}
}
////////当需要的空间大于实际空间时进行调整////
if(AreaWidth > rect.Width() && !bMonoSpace)
{
ItemRect = rect;
int AreaWidth,MaxWidth = rect.Width()/PageCount;
for(pos=m_PageList.GetHeadPosition();pos!=NULL;)
{
pItem=(CPageItem*)m_PageList.GetNext(pos);
if(pItem)
{
AreaWidth = pItem->GetAreaWidth(pDC);
ItemMaxWidth = (ItemMaxWidth < AreaWidth)?MaxWidth:AreaWidth;
ItemRect.right = ItemRect.left+ItemMaxWidth;
pItem->m_rect = ItemRect;
ItemRect.left = ItemRect.right + 1;
}
}
}
pDC->SelectObject(pOldFont);
ReleaseDC(pDC);
}
接上面的.CPP文件bool CCoolTabCtrl::SetActivePage(int nIndex)
{
if(nIndex == m_nActivePage)
return false;
CPageItem *pOldItem,*pItem;
if(m_nActivePage >= 0)
{
pOldItem = (CPageItem*)GetPageItem(m_nActivePage);
if(pOldItem)
{
pOldItem->m_pWnd->ShowWindow(SW_HIDE);
}
}
pItem = (CPageItem*)GetPageItem(nIndex);
if(!pItem) return false;
m_nActivePage = nIndex;
if(m_nStyle&TCS_ANIMATE)
{
times = 10;
SetTimer(100,50,NULL);///为了在95或NT4下也有动画效果，没有使用AnimateWindow函数
}
else
pItem->m_pWnd->ShowWindow(SW_SHOW);
return true;
}void* CCoolTabCtrl::GetPageItem(UINT nIndex)
{
CPageItem *pItem = NULL;
POSITION pos = m_PageList.FindIndex(nIndex);
if(pos)
pItem = (CPageItem*)m_PageList.GetAt(pos);
return pItem;
}CWnd * CCoolTabCtrl::GetPageDlg(UINT nIndex)
{
CPageItem *pItem = NULL;
if((pItem=(CPageItem *)GetPageItem(nIndex))==NULL) return NULL;
return pItem->m_pWnd;
}void CCoolTabCtrl::UpdateWindow()
{
AutoSize();
if(m_nActivePage < 0)
SetActivePage(0);
else
SetActivePage(m_nActivePage);
Invalidate();
}void CCoolTabCtrl::OnLButtonDown(UINT nFlags, CPoint point)
{
UINT nItemIndex=0;
POSITION pos;
CPageItem *pItem;
for(pos=m_PageList.GetHeadPosition();pos!=NULL;nItemIndex++)
{
pItem=(CPageItem*)m_PageList.GetNext(pos);
if(pItem)
{
if(pItem->m_rect.PtInRect(point))
{
if(SetActivePage(nItemIndex))
Invalidate();
break;
}
}
}
CWnd::OnLButtonDown(nFlags, point);
}void CCoolTabCtrl::OnSizing(UINT fwSide, LPRECT pRect)
{
CWnd::OnSizing(fwSide, pRect);
m_bEraseBkgnd = FALSE;
AutoSize();
}void CCoolTabCtrl::OnSize(UINT nType, int cx, int cy)
{
CWnd::OnSize(nType, cx, cy);
m_bEraseBkgnd = TRUE;
AutoSize();
Invalidate();
}//绘制边框
void CCoolTabCtrl::DrawFrame(CDC *pDC)
{
CRect rect;
GetClientRect(&rect);
switch(m_nBorder)
{
case 1:
pDC->Draw3dRect(rect,RGB(100,100,255),RGB(100,100,255));//边框线
break;
case 2:
pDC->Draw3dRect(rect,RGB(0xff,0xff,0xff),RGB(0,0,0));
rect.DeflateRect(1, 1);
pDC->Draw3dRect(rect, GetSysColor(COLOR_3DFACE), GetSysColor(COLOR_3DSHADOW));
break;
default:break;
}
}void CCoolTabCtrl::SetStyle(UINT style)
{
m_nStyle = style;
}UINT CCoolTabCtrl::GetStyle()
{
return m_nStyle;
}void CCoolTabCtrl::OnTimer(UINT nIDEvent)
{

UINT width;
CRect rect;
GetClientRect(&rect);
rect.DeflateRect(m_nBorder+1,m_nBorder+1);
POSITION pos = m_PageList.FindIndex(m_nActivePage);
if(pos)
{
CPageItem *pItem = (CPageItem*)m_PageList.GetAt(pos);
if(pItem)
{
width = rect.Width();
if(times == 10)
{
rect.right = 10;
rect.left = rect.right - width + 1;
step = width/times;
times--;
m_bEraseBkgnd = TRUE;//FALSE;
pItem->m_pWnd->ShowWindow(SW_SHOW);
}
else
{
if(times <= 0)
{
times = 10;
KillTimer(nIDEvent);
m_bEraseBkgnd = TRUE;
}
else
{
rect.right = width - times*step;
rect.left = rect.right - width + 1;
times--;
}
}
pItem->m_pWnd->MoveWindow(rect);
}
}
}void CCoolTabCtrl::SetStyleAnimate(BOOL bEnable)
{
UINT style = GetStyle();
if(bEnable)
style |= TCS_ANIMATE;
else
style &= ~TCS_ANIMATE;
SetStyle(style);
}void CCoolTabCtrl::SetStyleDirection(int Direction)
{
UINT style = GetStyle();
switch(Direction)
{
case TCS_DOWN:
style &= ~TCS_UP;
style |= TCS_DOWN;
break;
case TCS_UP:
default:
style &= ~TCS_DOWN;
style |= TCS_UP;
break;
}
SetStyle(style);
UpdateWindow();
}void CCoolTabCtrl::SetStyleMonoSpace(BOOL bEnable)
{
UINT style = GetStyle();
if(bEnable)
style |= TCS_MONOSPACE;
else
style &= ~TCS_MONOSPACE;
SetStyle(style);
UpdateWindow();
}BOOL CCoolTabCtrl::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult)
{
// 将WM_NOTIFY消息转交给父窗口处理
GetParent()->SendMessage(WM_NOTIFY, wParam, lParam);
*pResult = 0;

return TRUE;
}int CCoolTabCtrl::GetPageCount() const
{
return m_PageList.GetCount();
}int CCoolTabCtrl::GetActiveItem()
{
return m_nActivePage;
}

调试易

自定义TabCtrl控件CCoolTabCtrl，如何响应选项卡切换事件？

解决方案 »