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(int pane)
  29 {
  30         if (!PromptAndSaveIfNeeded(true))
  31                 return false;
  32
  33         CLoadSaveCodepageDlg dlg(m_nBuffers);
  34         dlg.EnableSaveCodepage(true);
  35         if (pane == -1)
  36         {
  37                 dlg.SetCodepages(m_ptBuf[0]->getCodepage());
  38                 dlg.SetCodepageBOM(m_ptBuf[0]->getHasBom());
  39         }
  40         else
  41         {
  42                 dlg.SetCodepages(m_ptBuf[pane]->getCodepage());
  43                 dlg.SetCodepageBOM(m_ptBuf[pane]->getHasBom());
  44                 if (pane == 0)
  45                 {
  46                         dlg.SetAffectMiddle(false);
  47                         dlg.SetAffectRight(false);
  48                 }
  49                 if (m_nBuffers > 2 && pane == 1)
  50                 {
  51                         dlg.SetAffectLeft(false);
  52                         dlg.SetAffectRight(false);
  53                 }
  54                 if (pane == m_nBuffers - 1)
  55                 {
  56                         dlg.SetAffectLeft(false);
  57                         dlg.SetAffectMiddle(false);
  58                 }
  59         }
  60         if (IDOK != dlg.DoModal())
  61                 return false;
  62
  63         bool doLeft = dlg.DoesAffectLeft();
  64         bool doMiddle = dlg.DoesAffectMiddle();
  65         bool doRight = dlg.DoesAffectRight();
  66         FileLocation fileloc[3];
  67         bool bRO[3];
  68         for (pane = 0; pane < m_nBuffers; pane++)
  69         {
  70                 bRO[pane] = m_ptBuf[pane]->GetReadOnly();
  71                 if ((pane == 0 && doLeft) ||
  72                     (pane == 1 && doRight  && m_nBuffers <  3) ||
  73                     (pane == 1 && doMiddle && m_nBuffers == 3) ||
  74                     (pane == 2 && doRight  && m_nBuffers == 3))
  75                 {
  76                         fileloc[pane].encoding.SetCodepage(dlg.GetLoadCodepage());
  77                         switch (fileloc[pane].encoding.m_unicoding)
  78                         {
  79                         case ucr::UTF8:
  80                         case ucr::UCS2LE:
  81                         case ucr::UCS2BE:
  82                                 m_ptBuf[pane]->setHasBom(dlg.GetSaveCodepageBOM());
  83                                 break;
  84                         default:
  85                                 break;
  86                         }
  87                 }
  88                 else
  89                 {
  90                         fileloc[pane].encoding.m_unicoding = m_ptBuf[pane]->getUnicoding();
  91                         fileloc[pane].encoding.m_codepage = m_ptBuf[pane]->getCodepage();
  92                 }
  93                 fileloc[pane].setPath(m_filePaths[pane]);
  94         }
  95         OpenDocs(m_nBuffers, fileloc, bRO, m_strDesc);
  96
  97         if (dlg.GetSaveCodepage() != dlg.GetLoadCodepage() || m_ptBuf[0]->getHasBom() != dlg.GetSaveCodepageBOM())
  98         {
  99                 int nSaveCodepage = dlg.GetSaveCodepage();
 100                 for (pane = 0; pane < m_nBuffers; pane++)
 101                 {
 102                         bRO[pane] = m_ptBuf[pane]->GetReadOnly();
 103                         if (!bRO[pane] && (
 104                                 (pane == 0 && doLeft) ||
 105                                 (pane == 1 && doRight  && m_nBuffers <  3) ||
 106                                 (pane == 1 && doMiddle && m_nBuffers == 3) ||
 107                                 (pane == 2 && doRight  && m_nBuffers == 3)
 108                                 ))
 109                         {
 110                                 switch (nSaveCodepage)
 111                                 {
 112                                 case ucr::CP_UTF_8:
 113                                 case ucr::CP_UCS2LE:
 114                                 case ucr::CP_UCS2BE:
 115                                         m_ptBuf[pane]->setHasBom(dlg.GetSaveCodepageBOM());
 116                                         break;
 117                                 default:
 118                                         break;
 119                                 }
 120                                 m_ptBuf[pane]->setCodepage(nSaveCodepage);
 121                                 m_ptBuf[pane]->SetModified();
 122                                 UpdateHeaderPath(pane);
 123                                 ForEachView([](auto& pView) { pView->UpdateStatusbar(); });
 124                         }
 125                 }
 126         }
 127         return true;
 128 }
 129