src/Utils/MiscUI/TripleClick.h

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2011-2012 - TortoiseSVN
   4
   5 // This program is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License
   7 // as published by the Free Software Foundation; either version 2
   8 // of the License, or (at your option) any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software Foundation,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 #pragma once
  20
  21
  22 /**
  23  * \ingroup Utils
  24  * Helper to catch tripple mouse clicks.
  25  */
  26 class CTripleClick
  27 {
  28 public:
  29         CTripleClick()
  30                 : m_LastDblClickMsg(0)
  31                 , m_LastDblClickTime(0)
  32         {
  33         }
  34         virtual ~CTripleClick() {}
  35
  36         virtual void OnLButtonTrippleClick(UINT /*nFlags*/, CPoint /*point*/) {}
  37         virtual void OnMButtonTrippleClick(UINT /*nFlags*/, CPoint /*point*/) {}
  38         virtual void OnRButtonTrippleClick(UINT /*nFlags*/, CPoint /*point*/) {}
  39
  40         BOOL RelayTrippleClick(MSG* pMsg)
  41         {
  42                 if ( (pMsg->message == WM_LBUTTONDBLCLK) ||
  43                          (pMsg->message == WM_MBUTTONDBLCLK) ||
  44                          (pMsg->message == WM_RBUTTONDBLCLK))
  45                 {
  46                         m_LastDblClickMsg = pMsg->message;
  47                         m_LastDblClickTime = GetTickCount();
  48                 }
  49                 else if (
  50                                         ((pMsg->message == WM_LBUTTONDOWN)&&(m_LastDblClickMsg == WM_LBUTTONDBLCLK)) ||
  51                                         ((pMsg->message == WM_MBUTTONDOWN)&&(m_LastDblClickMsg == WM_MBUTTONDBLCLK)) ||
  52                                         ((pMsg->message == WM_RBUTTONDOWN)&&(m_LastDblClickMsg == WM_RBUTTONDBLCLK))
  53                                 )
  54                 {
  55                         if ((GetTickCount() - GetDoubleClickTime()) < m_LastDblClickTime)
  56                         {
  57                                 m_LastDblClickTime = 0;
  58                                 m_LastDblClickMsg = 0;
  59                                 CPoint pt;
  60                                 pt.x = GET_X_LPARAM(pMsg->lParam);
  61                                 pt.y = GET_Y_LPARAM(pMsg->lParam);
  62                                 switch (pMsg->message)
  63                                 {
  64                                 case WM_LBUTTONDOWN:
  65                                         OnLButtonTrippleClick((UINT)pMsg->wParam, pt);
  66                                         break;
  67                                 case WM_MBUTTONDOWN:
  68                                         OnMButtonTrippleClick((UINT)pMsg->wParam, pt);
  69                                         break;
  70                                 case WM_RBUTTONDOWN:
  71                                         OnRButtonTrippleClick((UINT)pMsg->wParam, pt);
  72                                         break;
  73                                 }
  74                                 return TRUE;
  75                         }
  76                 }
  77                 return FALSE;
  78         }
  79 private:
  80         UINT    m_LastDblClickMsg;
  81         DWORD   m_LastDblClickTime;
  82 };