#include "stdafx.h"
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#include "LogEdit.h"
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#define MENU_ITEM_SEL_ALL 0x666
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#define MENU_ITEM_COPY 0x667
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#define MENU_ITEM_CLEAR 0x668
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CLogEdit::CLogEdit()
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{
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m_nMaxLineCount = 0xffff;
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}
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CLogEdit::~CLogEdit()
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{
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}
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BEGIN_MESSAGE_MAP(CLogEdit, CEdit)
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ON_WM_CONTEXTMENU()
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END_MESSAGE_MAP()
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void CLogEdit::SetMaxLineCount(int line)
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{
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m_nMaxLineCount = line;
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}
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void CLogEdit::OnContextMenu(CWnd* pWnd, CPoint point)
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{
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HMENU hMenu = CreatePopupMenu();
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InsertMenu(hMenu, 0, MF_BYPOSITION, MENU_ITEM_SEL_ALL, "È«Ñ¡");
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InsertMenu(hMenu, 1, MF_BYPOSITION, MENU_ITEM_COPY, "¸´ÖÆ");
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InsertMenu(hMenu, 2, MF_BYPOSITION | MF_SEPARATOR, NULL, NULL);
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InsertMenu(hMenu, 3, MF_BYPOSITION, MENU_ITEM_CLEAR, "È«²¿Çå³ý");
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int cmd = ::TrackPopupMenu(hMenu,
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TPM_LEFTALIGN | TPM_RIGHTBUTTON | TPM_RETURNCMD,
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point.x, point.y + 2, 0, m_hWnd, NULL);
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DestroyMenu(hMenu);
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if (cmd == MENU_ITEM_SEL_ALL) {
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SetFocus();
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this->SetSel(0, -1);
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}
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else if (cmd == MENU_ITEM_COPY) {
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this->Copy();
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}
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else if (cmd == MENU_ITEM_CLEAR) {
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SetWindowText(_T(""));
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}
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}
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void CLogEdit::AppendText(const char* pszText)
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{
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// »ñÈ¡Ñ¡Ôñ·¶Î§ÒÔ±ã»Ö¸´
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int nStart, nEnd;
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GetSel(nStart, nEnd);
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// ³¬¹ýÖ¸¶¨ÐÐÊýÔòɾ³ý×îÇ°ÃæµÄÐÐ
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int nLineCount = GetLineCount();
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while (nLineCount > m_nMaxLineCount) {
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int nLin1End = LineIndex(1);
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nStart -= nLin1End;
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if (nStart < 0) nStart = 0;
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nEnd -= nLin1End;
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if (nEnd < 0) nEnd = 0;
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SetSel(0, nLin1End);
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ReplaceSel(_T(""));
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nLineCount = GetLineCount();
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}
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// ×·¼Óµ½×îºó
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int length = GetWindowTextLength();
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SetSel(length, length);
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ReplaceSel(pszText);
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PostMessage(WM_VSCROLL, SB_BOTTOM, 0);
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// »Ö¸´
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if (nStart == 0 && nEnd == 0) {
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nStart = GetWindowTextLength();
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nEnd = nStart;
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}
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SetSel(nStart, nEnd);
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}
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