Src/MergeDocEncoding.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 //    WinMerge:  an interactive diff/merge utility
   3 //    Copyright (C) 1997-2000  Thingamahoochie Software
   4 //    Author: Dean Grimm
   5 //    SPDX-License-Identifier: GPL-2.0-or-later
   6 /////////////////////////////////////////////////////////////////////////////
   7 /**
   8  * @file  MergeDocEncoding.cpp
   9  *
  10  * @brief Implementation file for CMergeDoc
  11  *
  12  */
  13
  14 #include "stdafx.h"
  15 #include "MergeDoc.h"
  16 #include "MergeEditView.h"
  17 #include "LoadSaveCodepageDlg.h"
  18 #include "unicoder.h"
  19
  20
  21 #ifdef _DEBUG
  22 #define new DEBUG_NEW
  23 #endif
  24
  25 /**
  26  * @brief Display file encoding dialog to user & handle user's choices
  27  */
  28 bool CMergeDoc::DoFileEncodingDialog()
  29 {
  30         if (!PromptAndSaveIfNeeded(true))
  31                 return false;
  32
  33         CLoadSaveCodepageDlg dlg(m_nBuffers);
  34         dlg.EnableSaveCodepage(true);
  35         dlg.SetCodepages(m_ptBuf[0]->getCodepage());
  36         dlg.SetCodepageBOM(m_ptBuf[0]->getHasBom());
  37         if (IDOK != dlg.DoModal())
  38                 return false;
  39
  40         bool doLeft = dlg.DoesAffectLeft();
  41         bool doMiddle = dlg.DoesAffectMiddle();
  42         bool doRight = dlg.DoesAffectRight();
  43         FileLocation fileloc[3];
  44         bool bRO[3];
  45         for (int pane = 0; pane < m_nBuffers; pane++)
  46         {
  47                 bRO[pane] = m_ptBuf[pane]->GetReadOnly();
  48                 if ((pane == 0 && doLeft) ||
  49                     (pane == 1 && doRight  && m_nBuffers <  3) ||
  50                     (pane == 1 && doMiddle && m_nBuffers == 3) ||
  51                     (pane == 2 && doRight  && m_nBuffers == 3))
  52                 {
  53                         fileloc[pane].encoding.SetCodepage(dlg.GetLoadCodepage());
  54                         switch (fileloc[pane].encoding.m_unicoding)
  55                         {
  56                         case ucr::UTF8:
  57                         case ucr::UCS2LE:
  58                         case ucr::UCS2BE:
  59                                 m_ptBuf[pane]->setHasBom(dlg.GetSaveCodepageBOM());
  60                                 break;
  61                         default:
  62                                 break;
  63                         }
  64                 }
  65                 else
  66                 {
  67                         fileloc[pane].encoding.m_unicoding = m_ptBuf[pane]->getUnicoding();
  68                         fileloc[pane].encoding.m_codepage = m_ptBuf[pane]->getCodepage();
  69                 }
  70                 fileloc[pane].setPath(m_filePaths[pane]);
  71         }
  72         OpenDocs(m_nBuffers, fileloc, bRO, m_strDesc);
  73
  74         if (dlg.GetSaveCodepage() != dlg.GetLoadCodepage() || m_ptBuf[0]->getHasBom() != dlg.GetSaveCodepageBOM())
  75         {
  76                 int nSaveCodepage = dlg.GetSaveCodepage();
  77                 for (int pane = 0; pane < m_nBuffers; pane++)
  78                 {
  79                         bRO[pane] = m_ptBuf[pane]->GetReadOnly();
  80                         if (!bRO[pane] && (
  81                                 (pane == 0 && doLeft) ||
  82                                 (pane == 1 && doRight  && m_nBuffers <  3) ||
  83                                 (pane == 1 && doMiddle && m_nBuffers == 3) ||
  84                                 (pane == 2 && doRight  && m_nBuffers == 3)
  85                                 ))
  86                         {
  87                                 switch (nSaveCodepage)
  88                                 {
  89                                 case ucr::CP_UTF_8:
  90                                 case ucr::CP_UCS2LE:
  91                                 case ucr::CP_UCS2BE:
  92                                         m_ptBuf[pane]->setHasBom(dlg.GetSaveCodepageBOM());
  93                                         break;
  94                                 default:
  95                                         break;
  96                                 }
  97                                 m_ptBuf[pane]->setCodepage(nSaveCodepage);
  98                                 m_ptBuf[pane]->SetModified();
  99                                 UpdateHeaderPath(pane);
 100                                 ForEachView([](auto& pView) { pView->UpdateStatusbar(); });
 101                         }
 102                 }
 103         }
 104         return true;
 105 }
 106