QQ分类按钮

花了一个礼拜时间，总算把这个代码啃完了，用的虚函数还是不太了解 

使用方法：

void CQQList::SetImageLists(CImageList *pImagelist)     设置关联的图像列表控件

void CQQList::AddButton(LPCSTR BtnTitle, UINT8 uID)    添加一个分类按钮，参数 分类名称，ID

void CQQList::AddButtonItems(UINT uID, CString &name, int nImageIndex)   为分类按钮uID添加一个项目，指定名称和图标

CQQList::m_pItemDlbFun                                                         设置回调函数，响应项目双击事件

 

ListButton.h          QQList的分类按钮，内含一些具体项目

class CListButton :public CButton{public:CListButton(void);~CListButton(void);public:UINT m_Index;             //分类按钮的IDBOOL m_Toped;             //分类按钮的位置CStringList m_Entities;   //具体项目的名称CStringList m_Image;      //具体项目的图标private:const UINT GetHeight()const;const UINT GetWidth()const;public:virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct);};

ListButton.cpp

#include "ListButton.h"CListButton::CListButton(void): m_Index(0), m_Toped(FALSE){}CListButton::~CListButton(void){}const UINT CListButton::GetHeight()const{CRect rect;GetClientRect(rect);return rect.Height();}const UINT CListButton::GetWidth()const{CRect rect;GetClientRect(rect);return rect.Width();}void CListButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct){CRect rect;GetClientRect(rect);CDC dc;dc.Attach(lpDrawItemStruct->hDC);dc.SetBkMode(TRANSPARENT);CBrush m_Brush(RGB(100,140,200));dc.SelectObject(&m_Brush);dc.DrawEdge(rect,BDR_RAISEDINNER|BDR_RAISEDOUTER,BF_BOTTOMLEFT|BF_TOPRIGHT);dc.Draw3dRect(rect,RGB(51,51,51),RGB(0,0,0));CRect rc(rect);rc.DeflateRect(2,2,2,2);dc.FillRect(rc,&m_Brush);CString str;GetWindowText(str);dc.SetTextColor(RGB(255,255,255));dc.DrawText(str,CRect(0,0,rect.right,rect.bottom),DT_CENTER|DT_VCENTER|DT_SINGLELINE);}

QQList.h

typedef void(ItemDlbFun)(const CListCtrl *pListCtrl,int nItemIndex);class CQQList :public CListCtrl{public:CQQList(void);~CQQList(void);public:void SetImageLists(CImageList *pImageList);    //设置项目关联的ImageListvoid AddButton(LPCSTR Btext, UINT8 nID);       //向List增加一个分类按钮void AddButtonItems(UINT nIndex,CString &strItem,int mImageIdex);  //向分类按钮增加一个项目ItemDlbFun *m_pItemDlbFun;                     //外部的回调函数public:virtual void PreSubclassWindow(void);BOOL PreTranslateMessage(MSG * pMsg);          //截获双击事件，调用回调函数virtual BOOL OnCmdMsg(UINT nID, int nCode, void * pExtra, AFX_CMDHANDLERINFO * pHandlerInfo);private:CListCtrl m_ClientList;CPtrArray m_pButton;UINT m_ButtonHeight;UINT m_LeftMargin;private:UINT GetTopBtnsHeightSum(void);UINT GetBtmBtnsHeightSum(void);UINT GetFirstBtmIndex(void);CRect GetNewButtonsRect(void);CRect GetListClientRect();void MoveDown(UINT bIndex);void MoveUp(UINT bIndex);UINT CommandToIndex(UINT nID);void ShowButtonItems(UINT nIndex);void OnButtonDown(UINT bIndex, UINT nID);};

QQList.cpp

#include "QQList.h"#include "ListButton.h"CQQList::CQQList(void): m_ButtonHeight(25), m_LeftMargin(0), m_pItemDlbFun(NULL){}CQQList::~CQQList(void){int m = m_pButton.GetSize();for( int i=0;i<m_pButton.GetSize();i++ ){((CListButton *)m_pButton[i])->DestroyWindow();delete((CListButton *)m_pButton[i]);}}/************************************************************虚函数************************************************************/void CQQList::PreSubclassWindow(void){m_ClientList.Create(LVS_ICON,CRect(0,0,0,0),this,101);m_ClientList.ShowWindow(SW_SHOW);m_ClientList.SetExtendedStyle(LVS_EX_FLATSB);m_ClientList.SetBkColor(RGB(255,255,255));m_ClientList.SetTextBkColor(RGB(255,255,255));m_ClientList.SetTextColor(RGB(0,0,255));m_ClientList.Arrange(LVA_ALIGNLEFT);CListCtrl::PreSubclassWindow();}BOOL CQQList::PreTranslateMessage(MSG * pMsg){if((pMsg->hwnd==m_ClientList.m_hWnd)&&(pMsg->message==WM_LBUTTONDBLCLK)){int index;index = m_ClientList.GetSelectionMark();if (m_pItemDlbFun != NULL)m_pItemDlbFun(&m_ClientList,index);}return CListCtrl::PreTranslateMessage(pMsg);}UINT CQQList::CommandToIndex(UINT nID){for(int i = 0;i< m_pButton.GetSize();i++){if(((CListButton*)m_pButton[i])->GetDlgCtrlID()==nID){return ((CListButton*)m_pButton[i])->m_Index;}}return -1;}BOOL CQQList::OnCmdMsg(UINT nID, int nCode, void * pExtra, AFX_CMDHANDLERINFO * pHandlerInfo){int index =  CommandToIndex(nID);if(index != -1){OnButtonDown(index,nID);}m_ClientList.OnCmdMsg(nID,nCode,pExtra,pHandlerInfo);return CListCtrl::OnCmdMsg(nID, nCode, pExtra, pHandlerInfo);}/************************************************************区域计算************************************************************/CRect CQQList::GetNewButtonsRect(void){const int EXIST_BTN_NUM = m_pButton.GetSize();int       sumheight = 0;int       i = 0;while( i<EXIST_BTN_NUM ){sumheight += ((CListButton*)m_pButton[i])->GetHeight();i++;}CRect TotalRect;GetClientRect(TotalRect);return CRect(0,sumheight,TotalRect.Width(),sumheight+m_ButtonHeight);}UINT CQQList::GetTopBtnsHeightSum(void){UINT result = 0;for(int i = 0; i< m_pButton.GetSize();i++){CListButton* aBtn = (CListButton*)m_pButton[i];if(aBtn->m_Toped){result += aBtn->GetHeight();}}return result;}UINT CQQList::GetBtmBtnsHeightSum(void){UINT result = 0;for(int i = 0; i< m_pButton.GetSize();i++){CListButton* aBtn = (CListButton*)m_pButton[i];if (aBtn->m_Toped==FALSE){result += aBtn->GetHeight();}}return result;}CRect CQQList::GetListClientRect(){CRect TotalRect;GetClientRect(TotalRect);int TopHeight = GetTopBtnsHeightSum();int BtmHeight = GetBtmBtnsHeightSum();CRect ClientRect(0,TopHeight,TotalRect.Width(),TotalRect.Height()-BtmHeight);return ClientRect;}/************************************************************************************************************************/UINT CQQList::GetFirstBtmIndex(void){for(int i = 0; i<m_pButton.GetSize();i++){if (((CListButton*)m_pButton[i])->m_Toped==FALSE)return i;}return -1;}void CQQList::MoveDown(UINT bIndex){UINT BtmOffset = m_pButton.GetSize()-1-bIndex;CListButton* target       = (CListButton*)m_pButton[bIndex];CRect wholeRect;GetClientRect(wholeRect);CRect rect(0,wholeRect.bottom - (target->GetHeight())*(BtmOffset+1),target->GetWidth(),wholeRect.bottom - (target->GetHeight())*(BtmOffset));target->MoveWindow(rect);target->m_Toped = FALSE;}void CQQList::MoveUp(UINT bIndex){CListButton* target       = (CListButton*)m_pButton[bIndex];CRect wholeRect;GetClientRect(wholeRect);CRect rect(0,wholeRect.top + (target->GetHeight())*(bIndex),target->GetWidth(),wholeRect.top + (target->GetHeight())*(bIndex+1));target->MoveWindow(rect);target->m_Toped = TRUE;}//显示第nIndex个按钮内的内容void CQQList::ShowButtonItems(UINT nIndex){m_ClientList.DeleteAllItems();CRect showrect = GetListClientRect();const UINT LEFT_MARGIN = showrect.Width()/2-20;CListButton* temp = (CListButton*)m_pButton[nIndex];if(temp->m_Entities.GetCount()>0){int m = 0;POSITION pos = temp->m_Entities.GetHeadPosition();POSITION index = temp->m_Image.GetHeadPosition();while( pos != NULL && index != NULL ){CString itemName = temp->m_Entities.GetNext(pos);int     itemId   = atoi(temp->m_Image.GetNext(index));m_ClientList.InsertItem(m,itemName,itemId);m_ClientList.SetItemPosition(m,CPoint(LEFT_MARGIN,m*(48+5)));m++;};}}void CQQList::OnButtonDown(UINT btnIdx, UINT nID){if(m_pButton.GetSize()<2){return;}CListButton* aBtn       = (CListButton*)m_pButton[btnIdx];if(aBtn->m_Toped){int targetBtnIdx = m_pButton.GetSize()-1;while( targetBtnIdx>btnIdx ){MoveDown(targetBtnIdx--);}}else{int targetBtnIdx = GetFirstBtmIndex();while( targetBtnIdx<=btnIdx ){MoveUp(targetBtnIdx++);}}CRect rectclt = GetListClientRect();m_ClientList.MoveWindow(rectclt);ShowButtonItems(btnIdx);}/**************************************************用户接口**************************************************/void CQQList::SetImageLists(CImageList *pImagelist){if(pImagelist)m_ClientList.SetImageList(pImagelist,LVSIL_NORMAL);}void CQQList::AddButton(LPCSTR BtnTitle, UINT8 uID){CListButton *pBtn = new CListButton;pBtn->Create(BtnTitle,WS_CHILD|BS_OWNERDRAW,GetNewButtonsRect(),this,uID);pBtn->m_Index = m_pButton.GetSize();pBtn->ShowWindow(SW_SHOW);m_pButton.Add(pBtn);}void CQQList::AddButtonItems(UINT nIndex, CString &name, int nImageIdex){CListButton* temp = (CListButton*)m_pButton[nIndex];temp->m_Entities.AddTail(name);CString strIndex;strIndex.Format("%d",nImageIdex);temp->m_Image.AddTail(strIndex);}