MFC—RichEdit控件有关使用
注意：MFC中使用RichEdit控件时需要在RichEditUse.cpp文件中的InitInstance()函数中添加初始化函数AfxInitRichEdit2();
1、RichEdit控件简单应用
为方便演示本例创建RichContrl基于对话框，生成CRichContrlDlg.h和CRichContrlDlg.cpp两个文件，在.cpp文件中宏定义：
#define COLOR_BLUE RGB(0, 0, 128) #define COLOR_RED RGB(0xFF, 0, 0) #define COLOR_GREEN RGB(0x2e, 0x8b, 0x57) #define COLOR_WHITE RGB(255, 255, 255) #define COLOR_BLACK RGB(0, 0, 0) #define COLOR_YELLOW RGB(250, 250, 60)
从工具箱中拖拽richedit控件、editcontrl控件、按钮到对话框中，ID分别为IDC_RICHEDIT_SHOW、IDC_EDIT_INPUT，然后在CRichContrlDlg.h中申明函数void DrawTextToREdit(CString szMessage, UINT uiREditId, COLORREF crTextCr, COLORREF crBackCr, int nFontSize)；返回CRichContrlDlg.cpp实现函数DrawTextToREdit()如下：
1 void CRichContrlDlg::DrawTextToREdit(CString szMessage, UINT uiREditId, COLORREF crTextCr, COLORREF crBackCr, int nFontSize) 2 { 3 CRichEditCtrl* pREdit = (CRichEditCtrl*)this->GetDlgItem(uiREditId); 4 CFont font; 5 font.CreateFont( 6 nFontSize, //字体的高度 7 0, //字体的宽度 8 0, //字体的倾斜角 9 0, //字体的倾斜角 10 FW_LIGHT, //字体的粗细 11 FALSE, //字体是否为斜体 12 FALSE, //字体是否为下划线 13 FALSE, //字体是否有删除线 14 ANSI_CHARSET, //字体使用的字符集 15 OUT_TT_PRECIS, //指定如何选择合适的字体 16 CLIP_DEFAULT_PRECIS, //用来确定裁剪的精度 17 PROOF_QUALITY, //怎么样跟选择的字体相符合 18 FF_MODERN | FIXED_PITCH,//距标志和属性标志 19 _T("楷体") //字体的名称 20 ); 21 this->GetDlgItem(uiREditId)->SetFont(&font); 22 pREdit->SetBackgroundColor(FALSE, crBackCr); 23 CHARFORMAT cf; 24 ::memset(&cf, 0, sizeof(cf)); 25 cf.dwMask = CFM_COLOR | CFM_BOLD; 26 cf.dwEffects = CFE_BOLD; 27 cf.crTextColor = crTextCr; 28 pREdit->SetDefaultCharFormat(cf); 29 this->SetDlgItemText(uiREditId, szMessage); 30 }
给按钮添加事件处理程序，调用DrawTextToREdit()函数：
void CRichContrlDlg::OnBnClickedButton1() { // TODO: 在此添加控件通知处理程序代码 CString input_str; this->GetDlgItemText(IDC_EDIT_INPUT, input_str); DrawTextToREdit(input_str, IDC_RICHEDIT_SHOW, COLOR_WHITE, COLOR_GREEN, 120); }
效果截图：
2、RichEdit控件和Check控件结合使用
新建一个基于对话框的MFC程序，工具箱中拖拽三个复选框控件、richedit控件、按钮控件到对话框中，并在CRichEditUseDlg.h文件中添加控件变量，如下所示：
public: afx_msg void OnTextColor(); afx_msg void OnBold(); afx_msg void OnItalic(); afx_msg void OnUnderline(); CRichEditCtrl m_RichSample; //RichEdit控件变量 CButton m_ctlBold; //粗体复选框 CButton m_ctlItalic; //斜体复选框 CButton m_ctlUnderline; //下划线复选框
接下来在CRichEditUseDlg.cpp文件中分别给各个控件添加事件处理函数：
1 //按钮的事件处理函数 2 void CRichEditUseDlg::OnTextColor() 3 { 4 // TODO: 在此添加控件通知处理程序代码 5 CHARFORMAT cf; 6 memset(&cf, '\0', sizeof(CHARFORMAT)); 7 cf.dwMask = CFM_COLOR; 8 m_RichSample.GetSelectionCharFormat(cf); 9 CColorDialog cc(cf.crTextColor); //弹出颜色选择对话框 10 if (cc.DoModal() == IDCANCEL) 11 { 12 return; 13 } 14 cf.dwMask = CFM_COLOR; 15 cf.dwEffects &= ~CFE_AUTOCOLOR; 16 cf.crTextColor = cc.GetColor(); 17 m_RichSample.SetSelectionCharFormat(cf); 18 m_RichSample.SetFocus(); 19 } 20 21 //粗体复选框事件处理函数 22 void CRichEditUseDlg::OnBold() 23 { 24 // TODO: 在此添加控件通知处理程序代码 25 CHARFORMAT cf; //结构体 26 m_RichSample.GetSelectionCharFormat(cf); 27 cf.dwMask |= CFM_BOLD; 28 cf.dwEffects ^= CFE_BOLD; 29 m_RichSample.SetSelectionCharFormat(cf); 30 if (cf.dwEffects & CFE_BOLD) //当前为粗体 31 { 32 m_ctlBold.SetCheck(1); //设置按钮被选 33 } 34 else //当前不为粗体 35 { 36 m_ctlBold.SetCheck(0); //设置按钮未被选中 37 } 38 m_RichSample.SetFocus(); 39 } 40 41 //斜体复选框事件处理函数 42 void CRichEditUseDlg::OnItalic() 43 { 44 // TODO: 在此添加控件通知处理程序代码 45 CHARFORMAT cf; 46 m_RichSample.GetSelectionCharFormat(cf); 47 cf.dwMask |= CFM_ITALIC; 48 cf.dwEffects ^= CFE_ITALIC; 49 m_RichSample.SetSelectionCharFormat(cf); 50 if (cf.dwEffects & CFM_ITALIC) //当前为斜体 51 { 52 m_ctlItalic.SetCheck(1); //设置按钮被选中 53 } 54 else //当前不为斜体 55 { 56 m_ctlItalic.SetCheck(0); //设置按钮未被选中 57 } 58 m_RichSample.SetFocus(); 59 } 60 61 //下划线复选框事件处理函数 62 void CRichEditUseDlg::OnUnderline() 63 { 64 // TODO: 在此添加控件通知处理程序代码 65 CHARFORMAT cf; 66 m_RichSample.GetSelectionCharFormat(cf); 67 cf.dwMask |= CFM_UNDERLINE; 68 cf.dwEffects ^= CFE_UNDERLINE; 69 m_RichSample.SetSelectionCharFormat(cf); 70 if (cf.dwEffects & CFM_UNDERLINE) //当前带有下划线 71 { 72 m_ctlUnderline.SetCheck(1); //设置按钮被选中 73 } 74 else //当前不带有下划线 75 { 76 m_ctlUnderline.SetCheck(0); //设置按钮未被选中 77 } 78 m_RichSample.SetFocus(); 79 }
效果图：
3、从文件中读取内容并存入数组中
添加类TestItem，在该类中申明：
class TestItem { public: TestItem(void); ~TestItem(void); CString m_szIteamName; CString m_szSpec1; CString m_szSpec2; CString m_szSpec3; CString m_szSpec4; CString m_szSpec5; CString m_szSpec6; };
对应的.cpp文件中初始化变量：
#include "pch.h" #include "TestItem.h" TestItem::TestItem(void) { this->m_szIteamName = _T(""); this->m_szSpec1 = _T(""); this->m_szSpec2 = _T(""); this->m_szSpec3 = _T(""); this->m_szSpec4 = _T(""); this->m_szSpec5 = _T(""); this->m_szSpec6 = _T(""); } TestItem::~TestItem(void) { }
在对话框中实现函数：
1 void CThreadTestDlg::InitItem() { 2 //项目名全部暂时清空 3 for (int i = 0;i < 50;i++) { 4 this->m_objTestItem[i].m_szIteamName = _T(""); 5 } 6 CString szCsvPath = _T(".\\temp.log"); 7 CStdioFile file; 8 if (file.Open(szCsvPath, CFile::modeRead | CFile::shareDenyNone)) { 9 int nItemCount = 0; 10 CString sz1LineStr; 11 while (file.ReadString(sz1LineStr)) 12 { 13 CString szItemTmp = _T(""); 14 // 0 15 szItemTmp = sz1LineStr.SpanExcluding(_T(",")); 16 sz1LineStr.Delete(0, szItemTmp.GetLength() + 1); 17 this->m_objTestItem[nItemCount].m_szIteamName = szItemTmp; 18 // 1 19 szItemTmp = sz1LineStr.SpanExcluding(_T(",")); 20 sz1LineStr.Delete(0, szItemTmp.GetLength() + 1); 21 this->m_objTestItem[nItemCount].m_szSpec1 = szItemTmp; 22 // 2 23 szItemTmp = sz1LineStr.SpanExcluding(_T(",")); 24 sz1LineStr.Delete(0, szItemTmp.GetLength() + 1); 25 this->m_objTestItem[nItemCount].m_szSpec2 = szItemTmp; 26 // 3 27 szItemTmp = sz1LineStr.SpanExcluding(_T(",")); 28 sz1LineStr.Delete(0, szItemTmp.GetLength() + 1); 29 this->m_objTestItem[nItemCount].m_szSpec3 = szItemTmp; 30 // 4 31 szItemTmp = sz1LineStr.SpanExcluding(_T(",")); 32 sz1LineStr.Delete(0, szItemTmp.GetLength() + 1); 33 this->m_objTestItem[nItemCount].m_szSpec4 = szItemTmp; 34 // 5 35 szItemTmp = sz1LineStr.SpanExcluding(_T(",")); 36 sz1LineStr.Delete(0, szItemTmp.GetLength() + 1); 37 this->m_objTestItem[nItemCount].m_szSpec5 = szItemTmp; 38 // 6 39 szItemTmp = sz1LineStr.SpanExcluding(_T(",")); 40 sz1LineStr.Delete(0, szItemTmp.GetLength() + 1); 41 this->m_objTestItem[nItemCount].m_szSpec6 = szItemTmp; 42 nItemCount++; 43 } 44 } 45 }
