VC可编辑可变颜色的列表控件CListCtrl_吴超

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VC可编辑可变颜色的列表控件CListCtrl

(2017-12-22 15:51:50)

标签：

可编辑可变颜色

列表控件clistctrl

分类：代码天地

列表控件CListCtrl 使用很广泛，但自身无法编辑单元格的内容，无法改变前景和背景颜色。

通过加入相关的函数，借助编辑框输入文本，组合框选择项目等来实现文本编辑。

代码大部分来自网络，为了使用灵活使用，加入适当的代码，或者适当的改变。

比如：列的类型数组，列的组合框项目数组等。

修改的部分都使用红色标注。

主要代码如下：

一类头文件（3个类放到一个头文件内） EditListCtrl.h

#if !defined(AFX_EDITLISTCTRL_H__129EB9CC_D1CA_488B_A9E5_44793533DC86__INCLUDED_)

#define AFX_EDITLISTCTRL_H__129EB9CC_D1CA_488B_A9E5_44793533DC86__INCLUDED_

#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000

// EditListCtrl.h : header file

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

// EditListCtrl window

//1 CListCtrlEdit

class CListCtrlEdit : public CEdit

{

DECLARE_DYNAMIC(CListCtrlEdit)

public:

CListCtrlEdit();

virtual ~CListCtrlEdit();

protected:

DECLARE_MESSAGE_MAP()

public:

afx_msg void OnKillFocus(CWnd* pNewWnd);

};

//2 CListCtrlCombo

class CListCtrlCombo : public CComboBox

{

DECLARE_DYNAMIC(CListCtrlCombo)

public:

CListCtrlCombo();

virtual ~CListCtrlCombo();

protected:

DECLARE_MESSAGE_MAP()

public:

afx_msg void OnKillFocus(CWnd* pNewWnd);

};

//3 CEditableListCtrl

class CEditListCtrl : public CListCtrl

{

DECLARE_DYNAMIC(CEditListCtrl)

enum {listCtrl_LABEL=0,listCtrl_EDIT=1,listCtrl_COMBO=2,listCtrl_STATIC=3};

public:

CEditListCtrl();

virtual ~CEditListCtrl();

protected:

DECLARE_MESSAGE_MAP()

public:

afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);

afx_msg void OnHdnBegintrack(NMHDR *pNMHDR, LRESULT *pResult);

afx_msg void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);

afx_msg void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);

void ShowEdit(bool bShow, int nItem, int nSubItem, CRect rcCtrl);

void ShowCombo(bool bShow, int nItem, int nSubItem, CRect rcCtrl);

afx_msg LRESULT OnEditEnd(WPARAM wParam,LPARAM lParam);

afx_msg LRESULT OnComboEnd(WPARAM wParam,LPARAM lParam);

private:

CListCtrlEdit m_edit;

CListCtrlCombo m_combo;

int nItem; // 当前点击项

int nSubItem; // 当前点击子项

bool m_bEditVisible; // Edit是否可见

bool m_bComboVisible; // ComboBox是否可见

//-----------------新增部分----------------------

public:

void column_type(int nColumn=0);//初始化各列的类型

void column_string(int nColumn=0);//初始化各列的选择数目项，主要针对组合框

void OnCustomdrawMyList ( NMHDR* pNMHDR, LRESULT* pResult ) ;//1 自绘函数改变颜色声明

public:

int m_column_num;//列的个数

int *m_column_type;//列的类型, 区分是编辑框,组合框,还是普通的文本框

CString *m_column_string;//各个列的组合框的项目字符数足

};

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

//{{AFX_INSERT_LOCATION}}

// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_EDITLISTCTRL_H__129EB9CC_D1CA_488B_A9E5_44793533DC86__INCLUDED_)

二类的实现文件（3个类放到一个实现文件内） EditListCtrl.cpp

// EditListCtrl.cpp : implementation file

#include "stdafx.h"

#include "editList.h"

#include "EditListCtrl.h"

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

//1

//#include "ListCtrlEdit.h"

#define WM_USER_EDIT_END WM_USER+101

// CListCtrlEdit

IMPLEMENT_DYNAMIC(CListCtrlEdit, CEdit)

CListCtrlEdit::CListCtrlEdit()

{

}

CListCtrlEdit::~CListCtrlEdit()

{

}

BEGIN_MESSAGE_MAP(CListCtrlEdit, CEdit)

ON_WM_KILLFOCUS()

END_MESSAGE_MAP()

// CListCtrlEdit message handlers

void CListCtrlEdit::OnKillFocus(CWnd* pNewWnd)

{

CEdit::OnKillFocus(pNewWnd);

// TODO: Add your message handler code here

CWnd *pParent = this->GetParent();

::PostMessage(pParent->GetSafeHwnd(), WM_USER_EDIT_END, 0, 0);

}

//2

//#include "ListCtrlCombo.h"

#define WM_USER_COMBO_END WM_USER+102

// CListCtrlCombo

IMPLEMENT_DYNAMIC(CListCtrlCombo, CComboBox)

CListCtrlCombo::CListCtrlCombo()

{

}

CListCtrlCombo::~CListCtrlCombo()

{

}

BEGIN_MESSAGE_MAP(CListCtrlCombo, CComboBox)

ON_WM_KILLFOCUS()

END_MESSAGE_MAP()

// CListCtrlCombo message handlers

void CListCtrlCombo::OnKillFocus(CWnd* pNewWnd)

{

CComboBox::OnKillFocus(pNewWnd);

// TODO: Add your message handler code here

CWnd *pParent = this->GetParent();

::PostMessage(pParent->GetSafeHwnd(), WM_USER_COMBO_END, 0, 0);

}

//3

//#include "EditableListCtrl.h"

#define WM_USER_EDIT_END WM_USER+101

#define WM_USER_COMBO_END WM_USER+102

// CEditListCtrl

IMPLEMENT_DYNAMIC(CEditListCtrl, CListCtrl)

CEditListCtrl::CEditListCtrl()

: m_bEditVisible(false), m_bComboVisible(false), nItem(-1), nSubItem(-1)

{

m_column_string=NULL;

m_column_type=NULL;

}

CEditListCtrl::~CEditListCtrl()

{

if (m_column_type) delete []m_column_type;

for (int i=0;i < m_column_num ;i++)

{

//if (m_column_string[i])

{

m_column_string[i]="";//.ReleaseBuffer();

// delete []m_column_string[i];

// m_column_string[i]=NULL;

}

//delete m_column_string;

}

m_column_string=NULL;

}

void CEditListCtrl::column_type(int nColumn)//

{

if (nColumn==0)

{

nColumn=CEditListCtrl::GetHeaderCtrl()->GetItemCount();

}

m_column_num=nColumn;//列的个数

if (m_column_type) delete []m_column_type;

m_column_type=new int [m_column_num];//列类型数组的声明

for (int i=0;i < m_column_num ;i++)

{

m_column_type[i]=0;

}

void CEditListCtrl::column_string(int nColumn)//

{

if (nColumn==0)

{

nColumn=CEditListCtrl::GetHeaderCtrl()->GetItemCount();

}

m_column_num=nColumn;//列的个数

if (m_column_string)

{

for (int i=0;i < m_column_num ;i++)

{

// if (m_column_string[i])

{

m_column_string[i]="";

// delete []m_column_string[i];

// m_column_string[i]=NULL;

}

delete m_column_string;

m_column_string=NULL;

}

m_column_string=new CString [m_column_num];

for (int i=0;i < m_column_num ;i++)

{

m_column_string[i]="";

}

void CEditListCtrl::ShowEdit(bool bShow, int nItem, int nSubItem, CRect rcCtrl)

{

m_bEditVisible = bShow;

if (m_edit.m_hWnd == NULL)

{

m_edit.Create(ES_AUTOHSCROLL | WS_CHILD | ES_LEFT | ES_WANTRETURN | WS_BORDER,

CRect(0,0,0,0), this, 1001);

m_edit.ShowWindow(SW_HIDE);

CFont tpFont;

tpFont.CreateStockObject(DEFAULT_GUI_FONT);

m_edit.SetFont(&tpFont);

tpFont.DeleteObject();

}

if (bShow == TRUE)

{

CString cstrItem = GetItemText(nItem, nSubItem);

m_edit.MoveWindow(&rcCtrl);

m_edit.ShowWindow(SW_SHOW);

m_edit.SetWindowText(cstrItem);

m_edit.SetFocus();

m_edit.SetSel(-1);

}

else

m_edit.ShowWindow(SW_HIDE);

}

void CEditListCtrl::ShowCombo(bool bShow, int nItem, int nSubItem, CRect rcCtrl)

{

m_bComboVisible = bShow;

if (m_combo.m_hWnd == NULL)

{

m_combo.Create(ES_AUTOHSCROLL | ES_AUTOVSCROLL | WS_CHILD | ES_LEFT | CBS_DROPDOWNLIST,

CRect(0,0,0,0), this, 1002);

m_combo.ShowWindow(SW_HIDE);

CFont tpFont;

tpFont.CreateStockObject(DEFAULT_GUI_FONT);

m_combo.SetFont(&tpFont);

tpFont.DeleteObject();

// m_combo.AddString(TEXT("Male"));

// m_combo.AddString(TEXT("Female"));

}

if (bShow == TRUE)

{

//1 根据本列实际的项目m_column_string[nSubItem], 来动态填充组合框

CString str1="",str2="",str3="";

int nPos=0;

str3="\n";//按换行符拆分,这样确保内容可以是各种字符

str1=m_column_string[nSubItem];

str1.TrimLeft();str1.TrimRight();

if (str1!="")//!str1.IsEmpty())

{

nPos=str1.FindOneOf(str3);

while(nPos>=0)

{

str2=str1.Mid(0,nPos);

m_combo.AddString(str2);

str1=str1.Mid(nPos+1);

nPos=str1.FindOneOf(str3);

}

if (str1!="") {str2=str1;m_combo.AddString(str2);}

}

m_combo.SetCurSel(-1);

CString cstrItem = GetItemText(nItem, nSubItem);

//2 根据组合框的(条目数+1),编辑区域占据一个所以+1, 来设置组合框的下拉大小

// m_combo.MoveWindow(&rcCtrl);

CRect rect;

m_combo.GetDroppedControlRect(&rect );

int nn=m_combo.GetCount(),hh=rcCtrl.Height();

rect.SetRect(rcCtrl.left,rcCtrl.top , rcCtrl.right,rcCtrl.top+(nn+1)*hh);

m_combo.MoveWindow(&rect);

m_combo.ShowWindow(SW_SHOW);

m_combo.SetWindowText(cstrItem);

m_combo.SetFocus();

int nItems = m_combo.GetCount();

for (int i=0; i < nItems ; ++i)

{

CString cstrItemText;

m_combo.GetLBText(i, cstrItemText);

if (cstrItem == cstrItemText)

{

m_combo.SetCurSel(i);

break;

}

else

{//隐含时清理组合框, 再次显示时, 根据实际的列 ,动态填充

m_combo.ResetContent();//清理

m_combo.ShowWindow(SW_HIDE);

}

BEGIN_MESSAGE_MAP(CEditListCtrl, CListCtrl)

ON_WM_LBUTTONDBLCLK()

ON_NOTIFY(HDN_BEGINTRACKA, 0, CEditListCtrl::OnHdnBegintrack)

ON_NOTIFY(HDN_BEGINTRACKW, 0, CEditListCtrl::OnHdnBegintrack)

ON_WM_HSCROLL()

ON_WM_VSCROLL()

ON_MESSAGE(WM_USER_EDIT_END, OnEditEnd)

ON_MESSAGE(WM_USER_COMBO_END, OnComboEnd)

// ON_NOTIFY ( NM_CUSTOMDRAW,IDC_LIST, OnCustomdrawMyList ) //2 手工加入消息影射

END_MESSAGE_MAP()

// CEditListCtrl message handlers

////3 手工添加本函数,设置ListCtrl某行某列单元格的前景,背景颜色

void CEditListCtrl::OnCustomdrawMyList ( NMHDR* pNMHDR, LRESULT* pResult )

{

//This code based on Michael Dunn's excellent article on

//list control custom draw at http://www.codeproject.com/listctrl/lvcustomdraw.asp

NMLVCUSTOMDRAW* pLVCD = reinterpret_cast( pNMHDR );

// Take the default processing unless we set this to something else below.

*pResult = CDRF_DODEFAULT;

// First thing - check the draw stage. If it's the control's prepaint

// stage, then tell Windows we want messages for every item.

if ( CDDS_PREPAINT == pLVCD->nmcd.dwDrawStage )

{

*pResult = CDRF_NOTIFYITEMDRAW;

}

else if ( CDDS_ITEMPREPAINT == pLVCD->nmcd.dwDrawStage )

{

// This is the notification message for an item. We'll request

// notifications before each subitem's prepaint stage.

*pResult = CDRF_NOTIFYSUBITEMDRAW;

}

else if ( (CDDS_ITEMPREPAINT | CDDS_SUBITEM) == pLVCD->nmcd.dwDrawStage )

{

COLORREF m_clrText,m_clrTextBk;//前景色，背景色

int nRow,nCol;//行，列

nRow = static_cast (pLVCD->nmcd.dwItemSpec);

nCol=pLVCD->iSubItem;

// 获取ListCtrl当前单元格的文本

CString str = GetItemText(nRow ,nCol);//m_list.

m_clrText = pLVCD->clrText ;//设置前景文本色

m_clrTextBk = pLVCD->clrTextBk;//设置背景色

if (m_column_type[nCol]==3)//可变背景列

{

m_clrTextBk=(DWORD)atoi(str);

}

pLVCD->clrText = m_clrText;//设置前景文本色

pLVCD->clrTextBk=m_clrTextBk;//设置背景色

*pResult = CDRF_DODEFAULT;

}

LRESULT CEditListCtrl::OnEditEnd(WPARAM wParam, LPARAM lParam)

{

CString strText;

m_edit.GetWindowText(strText);

SetItemText(nItem,nSubItem,strText);

ShowEdit(false, -1, -1, CRect());

return 0;

}

LRESULT CEditListCtrl::OnComboEnd(WPARAM wParam, LPARAM lParam)

{

int nSel = m_combo.GetCurSel();

CString cstrTextSel;

m_combo.GetLBText(nSel, cstrTextSel);

SetItemText(nItem, nSubItem, cstrTextSel);

ShowCombo(false, -1, -1, CRect());

return 0;

}

void CEditListCtrl::OnLButtonDblClk(UINT nFlags, CPoint point)

{

// TODO: Add your message handler code here and/or call default

CRect rcCtrl;

LVHITTESTINFO lvhti;

lvhti.pt = point;

nItem = SubItemHitTest(&lvhti);

if (nItem == -1)

return;

nSubItem = lvhti.iSubItem;

GetSubItemRect(nItem, nSubItem, LVIR_LABEL, rcCtrl);

//查看列的类型

switch( m_column_type[lvhti.iSubItem])

{

case 0://listCtrl_LABEL

break;

case 1://listCtrl_EDIT

ShowEdit(TRUE, nItem, nSubItem, rcCtrl);

break;

case 2://listCtrl_COMBO

ShowCombo(TRUE, nItem, nSubItem, rcCtrl);

break;

case 3://listCtrl_STATIC

{

CString str = GetItemText(nItem ,nSubItem);

COLORREF clr=atol(str);//RGB(255,0,0);

CColorDialog dlg;

dlg.m_cc.lpCustColors=&clr;//原来颜色

if (IDOK==dlg.DoModal())

{

clr=dlg.GetColor();//新选择的颜色

str.Format("%ld",clr);

SetItemText(nItem ,nSubItem,str);//颜色数值设置为单元格的文本

this->Invalidate();//刷新列表

}

break;

default:

break;

}

CListCtrl::OnLButtonDblClk(nFlags, point);

}

void CEditListCtrl::OnHdnBegintrack(NMHDR *pNMHDR, LRESULT *pResult)

{

LPNMHEADER phdr = reinterpret_cast(pNMHDR);

// TODO: Add your control notification handler code here

if (m_edit.m_hWnd != NULL && m_bEditVisible)

OnEditEnd(0, 0);

if (m_combo.m_hWnd != NULL && m_bComboVisible)

OnComboEnd(0, 0);

*pResult = 0;

}

void CEditListCtrl::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)

{

// TODO: Add your message handler code here and/or call default

if (m_edit.m_hWnd != NULL && m_bEditVisible)

OnEditEnd(0, 0);

if (m_combo.m_hWnd != NULL && m_bComboVisible)

OnComboEnd(0, 0);

CListCtrl::OnHScroll(nSBCode, nPos, pScrollBar);

}

void CEditListCtrl::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)

{

// TODO: Add your message handler code here and/or call default

if (m_edit.m_hWnd != NULL && m_bEditVisible)

OnEditEnd(0, 0);

if (m_combo.m_hWnd != NULL && m_bComboVisible)

OnComboEnd(0, 0);

CListCtrl::OnVScroll(nSBCode, nPos, pScrollBar);

}

三对话框头文件中的代码

// editListDlg.h : header file

#if !defined(AFX_EDITLISTDLG_H__6617E8B1_8F6A_4959_AAAA_D66822A926A5__INCLUDED_)

#define AFX_EDITLISTDLG_H__6617E8B1_8F6A_4959_AAAA_D66822A926A5__INCLUDED_

#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000

#include "EditListCtrl.h"

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

// CEditListDlg dialog

class CEditListDlg : public CDialog

{

// Construction

public:

CEditListDlg(CWnd* pParent = NULL); // standard constructor

// Dialog Data

//{{AFX_DATA(CEditListDlg)

enum { IDD = IDD_EDITLIST_DIALOG };

CEditListCtrl m_listCtrl;

//}}AFX_DATA

// ClassWizard generated virtual function overrides

//{{AFX_VIRTUAL(CEditListDlg)

protected:

virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support

//}}AFX_VIRTUAL

void OnCustomdrawMyList ( NMHDR* pNMHDR, LRESULT* pResult ) ;//1 手工加入自绘函数声明

// Implementation

protected:

HICON m_hIcon;

// Generated message map functions

//{{AFX_MSG(CEditListDlg)

virtual BOOL OnInitDialog();

afx_msg void OnSysCommand(UINT nID, LPARAM lParam);

afx_msg void OnPaint();

afx_msg HCURSOR OnQueryDragIcon();

//}}AFX_MSG

DECLARE_MESSAGE_MAP()

};

//{{AFX_INSERT_LOCATION}}

// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_EDITLISTDLG_H__6617E8B1_8F6A_4959_AAAA_D66822A926A5__INCLUDED_)

四对话框实现文件的主要代码

void CEditListDlg::DoDataExchange(CDataExchange* pDX)

{

CDialog::DoDataExchange(pDX);

//{{AFX_DATA_MAP(CEditListDlg)

DDX_Control(pDX, IDC_LIST1, m_listCtrl);

//}}AFX_DATA_MAP

}

BEGIN_MESSAGE_MAP(CEditListDlg, CDialog)

//{{AFX_MSG_MAP(CEditListDlg)

ON_WM_SYSCOMMAND()

ON_WM_PAINT()

ON_WM_QUERYDRAGICON()

ON_NOTIFY ( NM_CUSTOMDRAW,IDC_LIST1, OnCustomdrawMyList ) //2 手工加入消息影射

//}}AFX_MSG_MAP

END_MESSAGE_MAP()

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

// CEditListDlg message handlers

BOOL CEditListDlg::OnInitDialog()

{

CDialog::OnInitDialog();

// Style

DWORD dwStyle = ::GetWindowLong(m_listCtrl.GetSafeHwnd(), GWL_STYLE);

dwStyle |= LVS_SINGLESEL; //只可单行选中

dwStyle |= LVS_SHOWSELALWAYS; //Always show selection

dwStyle |=LVS_REPORT ; //报告风格

::SetWindowLong(m_listCtrl.GetSafeHwnd(), GWL_STYLE, dwStyle);

// Extended Style

DWORD dwStyleEx = m_listCtrl.GetExtendedStyle();

dwStyleEx |= LVS_EX_GRIDLINES; //网格线

dwStyleEx |= LVS_EX_FULLROWSELECT; //整行高亮

dwStyleEx |= LVS_EX_CHECKBOXES; //Item前生成check box

m_listCtrl.SetExtendedStyle(dwStyleEx);

// 插入列

m_listCtrl.InsertColumn(0, TEXT("姓名"), LVCFMT_LEFT, 100);

m_listCtrl.InsertColumn(1, TEXT("年龄"), LVCFMT_LEFT, 60);

m_listCtrl.InsertColumn(2, TEXT("性别"), LVCFMT_LEFT, 80);

m_listCtrl.InsertColumn(3, TEXT("上衣颜色"), LVCFMT_LEFT, 80);

int nItem = 0;

nItem = m_listCtrl.InsertItem(m_listCtrl.GetItemCount(), TEXT("张扬"), 0);

m_listCtrl.SetItemText(nItem, 1, TEXT("26")); //子项从1开始,0代表主项

m_listCtrl.SetItemText(nItem, 2, TEXT("男"));

m_listCtrl.SetItemText(nItem, 3, TEXT("255"));//255 数值代表背景的颜色值

nItem = m_listCtrl.InsertItem(m_listCtrl.GetItemCount(), TEXT("王艳"), 0);

m_listCtrl.SetItemText(nItem, 1, TEXT("24"));

m_listCtrl.SetItemText(nItem, 2, TEXT("女"));

m_listCtrl.SetItemText(nItem, 3, TEXT("65280"));//255*256 数值代表背景的颜色值

nItem = m_listCtrl.InsertItem(m_listCtrl.GetItemCount(), TEXT("李娜"), 0);

m_listCtrl.SetItemText(nItem, 1, TEXT("24"));

m_listCtrl.SetItemText(nItem, 2, TEXT("女"));

m_listCtrl.SetItemText(nItem, 3, TEXT("65535"));//255+255*256 数值代表背景的颜色值

//这些语句最好放到初始化的最后，至少要放到插入完列以后，否则需要传递列数

m_listCtrl.column_type();//获得列数,并初始化各列的默认类型,不同的类型见下面的赋值语句

m_listCtrl.m_column_type[1]=1;//第2列编辑框

m_listCtrl.m_column_type[2]=2;//第3列组合框

m_listCtrl.m_column_type[3]=3;//第4列背景变色框,文本的数值为背景的颜色数值

m_listCtrl.column_string();//初始化各列的项目内容, 组合框列的项目要单独赋值,见下面语句

m_listCtrl.m_column_string[2]="男\n女\n";//第3列为性别,组合框的内容以换行符分割

return TRUE; // return TRUE unless you set the focus to a control

}

void CEditListDlg::OnCustomdrawMyList ( NMHDR* pNMHDR, LRESULT* pResult )

{

m_listCtrl.OnCustomdrawMyList ( pNMHDR, pResult ) ;//调用控件类函数改变颜色

}

五运行效果

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