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171 lines
3.9 KiB
C++
171 lines
3.9 KiB
C++
// MeterCtrl.cpp : 实现文件
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//
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#include "stdafx.h"
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#pragma warning(disable:4312)
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#include ".\Meterctrl.h"
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// CMeterCtrl
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IMPLEMENT_DYNAMIC(CMeterCtrl, CWnd)
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CMeterCtrl::CMeterCtrl()
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: m_nLower(0)
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, m_nUpper(0)
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, m_nPos(0)
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{
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}
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CMeterCtrl::~CMeterCtrl()
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{
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}
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BEGIN_MESSAGE_MAP(CMeterCtrl, CWnd)
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ON_WM_PAINT()
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ON_WM_ERASEBKGND()
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END_MESSAGE_MAP()
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// CMeterCtrl 消息处理程序
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void CMeterCtrl::OnPaint()
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{
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CPaintDC dc(this); // device context for painting
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// TODO: 在此处添加消息处理程序代码
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// 不为绘图消息调用 CWnd::OnPaint()
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CRect rClient;
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GetClientRect(rClient);
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CRect rLeft = rClient;
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CRect rRight = rClient;
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UINT nRange = m_nUpper - m_nLower;
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rLeft.right = (LONG)(((m_nPos - m_nLower) * rClient.Width())/ nRange);
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rRight.left = rLeft.right;
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CRgn rgnLeft, rgnRight;
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rgnLeft.CreateRectRgnIndirect(rLeft);
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rgnRight.CreateRectRgnIndirect(rRight);
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CBrush *pBrush = CBrush::FromHandle(GetSysColorBrush(COLOR_HIGHLIGHT));
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dc.FillRect(rLeft, pBrush);
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CString msg;
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// msg.Format(">>left=%d, right=%d, top=%d, bottom=%d, nrange=%d, width=%d, npos=%d, nlower=%d",
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// rLeft.left, rLeft.right, rLeft.top, rLeft.bottom,
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// nRange, rClient.Width(), m_nPos, m_nLower);
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// AfxMessageBox(msg);
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//CString strCaption;
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//GetWindowText(strCaption);
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//strCaption.Format("%d%% (%d)", ((m_nPos - m_nLower) * 100)/ nRange, m_nPos);
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dc.SelectClipRgn(&rgnLeft);
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dc.SetBkMode(TRANSPARENT);
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dc.SetTextColor(GetSysColor(COLOR_HIGHLIGHTTEXT));
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dc.DrawText(m_sCaption, rClient, DT_BOTTOM | DT_CENTER);
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dc.SelectClipRgn(&rgnRight);
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dc.SetTextColor(GetSysColor(COLOR_HIGHLIGHT));
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dc.DrawText(m_sCaption, rClient, DT_BOTTOM | DT_CENTER);
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}
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BOOL CMeterCtrl::OnEraseBkgnd(CDC* pDC)
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{
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// TODO: 在此添加消息处理程序代码和/或调用默认值
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CRect r;
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GetClientRect(r);
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CBrush *pBrush = CBrush::FromHandle(GetSysColorBrush(COLOR_BTNFACE));
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pDC->FillRect(r, pBrush);
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return TRUE;
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// return CWnd::OnEraseBkgnd(pDC);
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}
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BOOL CMeterCtrl::Create(LPCTSTR lpszWindowName, DWORD dwStyle,
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const RECT& rect, CWnd* pParentWnd, HMENU nID)
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{
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// TODO: 在此添加专用代码和/或调用基类
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static CString className = AfxRegisterWndClass(CS_HREDRAW | CS_VREDRAW);
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return CWnd::CreateEx(WS_EX_STATICEDGE, //WS_EX_CLIENTEDGE | WS_EX_STATICEDGE,
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className, lpszWindowName, dwStyle,
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rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,
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pParentWnd->GetSafeHwnd(), (HMENU) nID);
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// return CWnd::Create(lpszClassName, lpszWindowName, dwStyle,
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// rect, pParentWnd, nID, pContext);
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}
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BOOL CMeterCtrl::CreateEx(DWORD dwExStyle, LPCTSTR lpszClassName,
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LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect,
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CWnd* pParentWnd, UINT nID, LPVOID lpParam)
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{
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// TODO: 在此添加专用代码和/或调用基类
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static CString className = AfxRegisterWndClass(CS_HREDRAW | CS_VREDRAW);
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return CWnd::CreateEx(dwExStyle, //WS_EX_CLIENTEDGE | WS_EX_STATICEDGE,
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lpszClassName, lpszWindowName, dwStyle,
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rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,
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pParentWnd->GetSafeHwnd(), (HMENU) nID);
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//return CWnd::CreateEx(dwExStyle, lpszClassName, lpszWindowName,
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// dwStyle, rect, pParentWnd, nID, lpParam);
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}
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UINT CMeterCtrl::SetPos(UINT nPos)
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{
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ASSERT(nPos >= m_nLower && nPos <= m_nUpper);
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UINT nRange = m_nUpper - m_nLower;
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UINT nOld = m_nPos;
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m_nPos = nPos;
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m_sCaption.Format("%d%% (%d)", ((m_nPos - m_nLower) * 100)/ nRange, m_nPos);
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InvalidateMeater();
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return nOld;
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}
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void CMeterCtrl::SetRange(UINT nLower, UINT nUpper)
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{
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ASSERT(nLower >= 0 && nLower < 0xffff);
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ASSERT(nUpper > nLower && nUpper < 0xffff);
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m_nLower = nLower;
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m_nUpper = nUpper;
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InvalidateMeater();
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}
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void CMeterCtrl::StepIt(void)
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{
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m_nPos++;
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if (m_nPos > m_nUpper)
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m_nPos = m_nLower;
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InvalidateMeater();
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}
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void CMeterCtrl::SetText(CString& msg)
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{
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m_sCaption = msg;
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InvalidateMeater();
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}
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void CMeterCtrl::SetText(const char* pMsg)
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{
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m_sCaption = pMsg;
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InvalidateMeater();
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}
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void CMeterCtrl::InvalidateMeater(void)
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{
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CRect r;
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GetClientRect(r);
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InvalidateRect(r);
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}
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