RichEdit控件的范例
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RichEditCtrlEx.h
- C/C++ code
- /////////////////////////////////////////////////////////////////////////////// Name: RICHEDITCTRLEX.H// Purpose: CRichEditCtrlEx// Author: yfq// Modified by: // Created: 2010/12/24 11:01// RCS-ID: // Copyright: // Licence: /////////////////////////////////////////////////////////////////////////////#ifndef __RICHEDITCTRLEX_H__#define __RICHEDITCTRLEX_H__class CRichEditCtrlEx : public CRichEditCtrl{ DECLARE_DYNCREATE(CRichEditCtrlEx)public: CRichEditCtrlEx(void); ~CRichEditCtrlEx(void); void Initlize(); /** * 最后追加一行 * * @param text -[in] -要追加的文本 * * @param newline -[in] -是否换行 * * @param link -[in] -是否带超链接 * * @param nLinkBegin -[in] -超链接起始位置(索引从0开始) * * @param nLinkCount -[in] -超链接字符数 * * @return -[NONE] */ void Append(LPCSTR text,bool newline = false,bool link = false,int nLinkBegin = 0,int nLinkCount = 0); /** * 获得文本 * * @param nBegin -[in] -开始位置 * * @param nEnd -[in] -结束位置 * * @param text -[out] -得到的文本 * * @return -[NONE] */ void GetText(int nBegin,int nEnd,CString& text); /** * 新增文字时是否滚动到底部 * * @param bottom -[in] -否滚动到底部 * * @return -[NONE] */ void SetScrollBottom(bool bottom=true); void StopScroll(); /** * 设置字体 * * @param nBegin -[in] -开始位置 * * @param nEnd -[in] -结束位置 * * @param bold -[in] -粗体 * * @param italic -[in] -斜体 * * @param underline -[in] -下划线 * * @param color -[in] -颜色 * * @param size -[in] -文字大小 * * @return -[NONE] */ void SetTextFont(int nBegin,int nEnd,bool bold,bool italic,bool underline,COLORREF color=0,int size=0); /** * 为选中的文本添加超链接 * * @return -[NONE] */ void AddLink(); /** * 取消选中文本添的超链接 * * @return -[NONE] */ void CancelLink(); /** * 校验URL是否合法文件路径，依据为rfc2396 * 这个函数只做粗略的校验，不完全符合RFC2369 * 仅支持IPV4 * */ BOOL CheckURL(const CString &szUrl, CString &szMsg); void OnSize(CWnd* pParent); void OnSize(CRect& rect); void OnSpecifySize(CWnd* pParent); bool IsCreate(); void Clear(); void SetEditFocus(bool focus); /** * 显示指定颜色的边框 * * @param bShow -[in] -是否显示边框 * * @param nColor -[in] -边框颜色 * * @return -[NONE] */ void ShowBorderLine(BOOL bShow,COLORREF nColor = RGB(53, 104, 187)); /** * 设置左侧偏移 * * @param nOffset -[in] -偏移量 * * @return -[NONE] */ void SetLeftOffset(int nOffset);public: afx_msg void OnPaint(); afx_msg void OnSize(UINT nType, int cx, int cy); afx_msg BOOL OnLink(NMHDR *in_pNotifyHeader, LRESULT *out_pResult); afx_msg void OnSetFocus(CWnd* pOldWnd); DECLARE_MESSAGE_MAP()private: CWnd* m_pParentWnd; bool m_bBottom; BOOL m_ShowBorder; COLORREF m_BorderColor; bool m_bCreate; bool m_bFocus;};#endif //__RICHEDITCTRLEX_H__
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- RichEditCtrlEx.cpp
- C/C++ code
- #include "StdAfx.h"#include <afxinet.h>#include "RichEditCtrlEx.h"#pragma warning(disable:4996)CRichEditCtrlEx::CRichEditCtrlEx(void){ m_ShowBorder = TRUE; m_BorderColor = RGB(53, 104, 187); m_bBottom = true; m_bCreate = false; m_bFocus = true; AfxInitRichEdit2();}CRichEditCtrlEx::~CRichEditCtrlEx(void){}IMPLEMENT_DYNCREATE(CRichEditCtrlEx, CRichEditCtrl)BEGIN_MESSAGE_MAP(CRichEditCtrlEx, CRichEditCtrl) ON_WM_RBUTTONDOWN() ON_WM_LBUTTONDBLCLK() ON_WM_PAINT() ON_NOTIFY_REFLECT_EX(EN_LINK, OnLink) ON_WM_SETFOCUS()END_MESSAGE_MAP()void CRichEditCtrlEx::Initlize(){ m_bBottom = true; m_bCreate = true; SetEventMask(GetEventMask() | ENM_LINK) ; //SendMessage(EM_AUTOURLDETECT, TRUE, 0); SetOptions(ECOOP_OR, ECO_AUTOVSCROLL); LimitText(0xFFFFFFFF); SetBackgroundColor(FALSE,RGB(248,248,248)); SetLeftOffset(150);}void CRichEditCtrlEx::Append(LPCSTR text,bool newline,bool link,int nLinkBegin,int nLinkCount){ int nPrvTotal = GetTextLengthEx( GTL_DEFAULT, 1200 ); SetSel(-1,-1); ReplaceSel((LPCTSTR)text); if (newline) { Append("\r\n"); } if (link) { if (!newline) { Append("\r\n"); } int nTotal = GetTextLengthEx( GTL_DEFAULT, 1200 ) - 1; if( nTotal > 0) { if (nLinkCount>nTotal-nPrvTotal) { nLinkCount = nTotal-nPrvTotal; } SetSel( nPrvTotal+nLinkBegin, nPrvTotal+nLinkBegin+nLinkCount ); AddLink(); } } // 随着输入随着自动滚动条滚动到最后一行 if (m_bBottom) { PostMessage(WM_VSCROLL, SB_BOTTOM,0); }}void CRichEditCtrlEx::GetText(int nBegin,int nEnd,CString& text){ CHARRANGE CharRange; CharRange.cpMin = nBegin; CharRange.cpMax = nEnd; SetSel(CharRange); CHAR szTmp[1024] = {0}; GetSelText(szTmp); text.Format("%s",szTmp);}void CRichEditCtrlEx::SetScrollBottom(bool bottom){ m_bBottom = bottom;}void CRichEditCtrlEx::StopScroll(){ m_bBottom = !m_bBottom; if (m_bBottom) { PostMessage(WM_VSCROLL, SB_BOTTOM,0); }}void CRichEditCtrlEx::SetTextFont(int nBegin,int nEnd,bool bold,bool italic,bool underline,COLORREF color,int size){ SetSel(nBegin,nEnd); CHARFORMAT2 cf,oldCf; GetSelectionCharFormat(oldCf); GetSelectionCharFormat(cf); if (bold) { cf.dwMask|=CFM_BOLD; cf.dwEffects|=CFE_BOLD; //设置粗体，取消用cf.dwEffects&=~CFE_BOLD; } if (italic) { cf.dwMask|=CFM_ITALIC; cf.dwEffects|=CFE_ITALIC; //设置斜体，取消用cf.dwEffects&=~CFE_ITALIC; } if (underline) { cf.dwMask|=CFM_UNDERLINE; cf.dwEffects|=CFE_UNDERLINE; //设置下划线，取消用cf.dwEffects&=~CFE_UNDERLINE; } if (color) { cf.dwEffects &= ~CFE_AUTOCOLOR; //这个最重要，设选中文字颜色的时候也要注意,dwEffects一定不能有CEF_AUTOCOLOR的属性 cf.dwMask|=CFM_COLOR; cf.crTextColor = color; //设置颜色 } if (size) { cf.dwMask|=CFM_SIZE; cf.yHeight =200; //设置高度 } cf.dwMask|=CFM_FACE; strcpy(cf.szFaceName ,_T("宋体"));//设置字体 SetSelectionCharFormat(cf); SetSel(-1,-1); SetSelectionCharFormat(oldCf);}void CRichEditCtrlEx::AddLink(){ CHARFORMAT2 cf2; ZeroMemory(&cf2, sizeof(CHARFORMAT2)); cf2.cbSize = sizeof(CHARFORMAT2); cf2.dwMask |= CFM_LINK; cf2.dwEffects |= CFE_LINK; cf2.dwEffects &= ~CFE_AUTOCOLOR; //这个最重要，设选中文字颜色的时候也要注意,dwEffects一定不能有CEF_AUTOCOLOR的属性 cf2.dwMask |= CFM_COLOR; cf2.crTextColor = RGB( 255, 112, 5 ); SetSelectionCharFormat(cf2); SetSel( -1, -1 );}void CRichEditCtrlEx::CancelLink(){ CHARFORMAT2 cf2; ZeroMemory(&cf2, sizeof(CHARFORMAT2)); cf2.cbSize = sizeof(CHARFORMAT2); cf2.dwMask = CFM_LINK; cf2.dwEffects &= ~CFE_LINK; SendMessage(EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM)&cf2); SetSel( -1, -1 );}BOOL CRichEditCtrlEx::CheckURL(const CString &szUrl, CString &szMsg){ DWORD dwService = 0; DWORD dwValid = AFX_INET_SERVICE_FTP|AFX_INET_SERVICE_HTTP|AFX_INET_SERVICE_HTTPS|AFX_INET_SERVICE_FILE; CString strServer; CString strObject; INTERNET_PORT port; BOOL bValid = AfxParseURL(szUrl, dwService, strServer, strObject, port); if (!bValid) { szMsg = szUrl + " \n不是一个合法的下载地址URL"; return FALSE; } return TRUE;}BOOL CRichEditCtrlEx::OnLink(NMHDR *pNotifyHeader, LRESULT *pResult){ ENLINK *pEnLink = reinterpret_cast<ENLINK *>(pNotifyHeader); CString strURL; *pResult = 0; CHAR szTmpLink[512] = {0}; switch (pNotifyHeader->code) { case EN_LINK: switch (pEnLink->msg) { case WM_LBUTTONUP: SetSel(pEnLink->chrg); GetSelText(szTmpLink); strURL.Format("%s",szTmpLink); CString strMsg; if (CheckURL(strURL,strMsg)) { ShellExecute(GetSafeHwnd(), _T("open"), strURL, NULL, NULL, SW_SHOWNORMAL); } break; } break; } return *pResult;}// We need to handle the OnSize message to ensure that the most recent// line of text is visible.void CRichEditCtrlEx::OnSize(UINT nType, int cx, int cy){ CRichEditCtrl::OnSize(nType, cx, cy);}void CRichEditCtrlEx::OnSize(CWnd* pParent){ if (!m_bCreate) { return; } CRect parentRect; pParent->GetClientRect(parentRect); parentRect.bottom = parentRect.bottom - 5; parentRect.top = parentRect.top + 5; parentRect.left = parentRect.left + 5; parentRect.right = parentRect.right - 5; MoveWindow(parentRect,TRUE);}void CRichEditCtrlEx::OnSize(CRect& rect){ if (!m_bCreate) { return; } rect.bottom = rect.bottom - 5; rect.top = rect.top + 5; rect.left = rect.left + 5; rect.right = rect.right - 5; MoveWindow(rect,TRUE);}void CRichEditCtrlEx::OnSpecifySize(CWnd* pParent){ if (!m_bCreate) { return; } CRect parentRect; pParent->GetClientRect(parentRect); parentRect.left = 5; parentRect.top = 197; parentRect.right -= 5; parentRect.bottom -= 5; MoveWindow(parentRect,TRUE);}void CRichEditCtrlEx::OnPaint(){ if (!m_ShowBorder) { CRichEditCtrl::OnPaint(); return; } CRichEditCtrl::OnPaint(); CClientDC dc(this); if (!m_pParentWnd) { return; } CRect rect; GetWindowRect(rect); rect.left-=1; rect.top-=1; rect.right+=1; rect.bottom+=1; ScreenToClient(rect); dc.Draw3dRect(rect,m_BorderColor,m_BorderColor);}// 如果控件可以获得焦点，则当控件有焦点时会自动滚动到底部，所以要屏蔽一下void CRichEditCtrlEx::OnSetFocus(CWnd* pOldWnd){ if (!m_bFocus) { return; } CRichEditCtrl::OnSetFocus(pOldWnd);}bool CRichEditCtrlEx::IsCreate(){ return m_bCreate;}void CRichEditCtrlEx::Clear(){ if (GetWindowLong(this->m_hWnd,GWL_STYLE) & ES_READONLY) { SetReadOnly(FALSE); CRichEditCtrl::Clear(); SetReadOnly(); } else { CRichEditCtrl::Clear(); }}void CRichEditCtrlEx::SetEditFocus(bool focus){ m_bFocus = focus;}void CRichEditCtrlEx::ShowBorderLine(BOOL bShow,COLORREF nColor){ m_ShowBorder = bShow;}void CRichEditCtrlEx::SetLeftOffset(int nOffset){ PARAFORMAT2 PF_his; PF_his.dwMask = PFM_ALIGNMENT|PFM_STARTINDENT; PF_his.wAlignment = PFA_LEFT; PF_his.dxStartIndent = nOffset; SetParaFormat(PF_his);}#pragma warning(default:4996)
三、使用方法
1、在窗体上放一个Rich Edit 2.0 Control,修改属性，例如，你需要多行显示则要把Multiline属性设置为TRUE，如果需要垂直滚动条则需要把Vertical Scroll属性设置为TRUE
2、为新添加的RichEdit控件关联控件变量：
在头文件中声明CRichEditCtrlEx m_RichEdit;
在DoDataExchange中写入DDX_Control(pDX, IDC_RICHEDIT21, m_RichEdit);
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