769 lines
17 KiB
C++
769 lines
17 KiB
C++
//
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// FileChooser.cpp
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//
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#include "stdafx.h"
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#include "common.h"
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#include "FileChooser.h"
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#include <Shlwapi.h>
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#include <shellapi.h>
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#include <ShlObj.h>
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#include <CommDlg.h>
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#ifdef _DEBUG
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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const TCHAR QuotMark = _T('\"');
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const TCHAR AllExt[] = _T(".*");
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//---------------------
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BOOL
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CFileChooser::Init(CWindow * pParent, DWORD dwStyle, UINT idEdit, UINT idButton)
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{
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ASSERT(NULL != pParent);
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ASSERT(NULL != pParent->GetDlgItem(idEdit));
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ASSERT(NULL != pParent->GetDlgItem(idButton));
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m_pParent = pParent;
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SetStyle(dwStyle);
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VERIFY(m_edit.SubclassWindow(pParent->GetDlgItem(idEdit)));
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if (StyleBitSet(FC_AUTOCOMPLETION))
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{
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SHAutoComplete(pParent->GetDlgItem(idEdit), SHACF_FILESYSTEM);
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}
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VERIFY(m_button.SubclassWindow(pParent->GetDlgItem(idButton)));
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return FALSE;
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}
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// External SetPath
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void
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CFileChooser::SetPath(const CString& path)
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{
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m_strPath = path;
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if (OpenForRead() && StyleBitSet(FC_PREPARE_DEFAULT))
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CreateDefaultPathForRead();
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SetPathToEdit(m_strPath);
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m_bEditDirty = FALSE;
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}
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BOOL
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CFileChooser::HasEditFocus()
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{
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return GetFocus() == m_edit.m_hWnd;
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}
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void
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CFileChooser::SetPathToEdit(LPCTSTR path)
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{
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if (HasEditFocus())
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{
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m_edit.SetWindowText(path);
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}
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else
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{
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SetCompactedPath(path);
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}
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}
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void
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CFileChooser::CreateDefaultPathForRead()
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{
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if (!PathFileExists(m_strPath))
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{
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// try to find first file with the first extension
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// from the extensions list
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BOOL bDefaultSet = FALSE;
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BOOL bPathEmpty = m_strPath.IsEmpty();
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TCHAR find_str[MAX_PATH];
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WIN32_FIND_DATA find_data;
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if (bPathEmpty)
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{
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GetCurrentDirectory(MAX_PATH, find_str);
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m_strPath = find_str;
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}
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else
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{
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StrCpy(find_str, m_strPath);
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if (!PathIsDirectory(find_str))
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{
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PathRemoveFileSpec(find_str);
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}
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}
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PathAppend(find_str, _T("*"));
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std::list<CFilterEntry>::iterator it;
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for (it = m_ext.begin(); it != m_ext.end(); it++)
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{
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CString ext = (*it).m_ext;
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PathAddExtension(find_str, ext);
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HANDLE hFind = FindFirstFile(find_str, &find_data);
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if ( hFind != INVALID_HANDLE_VALUE
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&& (find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0
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)
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{
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if (!bPathEmpty)
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{
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TCHAR buf[MAX_PATH];
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StrCpy(buf, m_strPath);
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PathRemoveFileSpec(buf);
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m_strPath = buf;
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}
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m_strPath += find_data.cFileName;
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FindClose(hFind);
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bDefaultSet = TRUE;
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break;
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}
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}
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if (!bDefaultSet && StyleBitSet(FC_WILDCARD_DEFAULT))
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{
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// if nothing found, just attach *.ext to the path
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// find_str was prepared before as xxx\*.
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m_strPath = find_str;
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if (!m_ext.empty())
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{
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m_strPath += m_ext.front().m_ext;
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}
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else
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{
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m_strPath += _T("*");
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}
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}
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}
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}
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BOOL
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CFileChooser::IsValidChar(UINT nChar, BOOL bExcludeWildcards)
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{
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switch (PathGetCharType((TCHAR)nChar))
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{
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case GCT_INVALID:
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return FALSE;
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case GCT_WILD:
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return !bExcludeWildcards;
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case GCT_LFNCHAR:
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case GCT_SEPARATOR:
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case GCT_SHORTCHAR:
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break;
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}
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return TRUE;
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}
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BOOL
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CFileChooser::IsValidPath(LPCTSTR path)
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{
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UINT len = lstrlen(path);
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BOOL bRes = TRUE;
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for (UINT i = 0; i < len; i++)
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{
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TCHAR c = path[i];
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if (!IsValidChar(c))
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{
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bRes = FALSE;
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break;
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}
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}
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return bRes;
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}
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// Character filtering routine for the edit control.
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// Returns TRUE if character should be passed to the CEdit
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//
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LRESULT
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CFileChooser::OnEditChar(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
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{
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UINT nChar = wParam;
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UINT nRepCount = (UINT)lParam & 0xFFFF;
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UINT nFlags = (UINT)((lParam & 0xFFFF0000) >> 16);
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bHandled = TRUE;
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if (IsValidChar(nChar))
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{
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bHandled = FALSE;
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}
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else
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{
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switch (nChar)
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{
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case VK_DELETE:
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case VK_BACK:
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case _T('/'):
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bHandled = FALSE;
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break;
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case _T('"'):
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bHandled = !StyleBitSet(FC_COMMANDLINE);
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break;
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}
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}
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m_bEditDirty = !bHandled;
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return 0;
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}
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// Text was pasted to edit control
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void
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CFileChooser::OnPaste()
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{
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TCHAR buf[MAX_PATH];
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int len = m_edit.GetWindowText(buf, MAX_PATH);
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for (int i = 0; i < len || IsValidChar(buf[i]); i++)
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;
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if (i < len)
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{
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m_edit.SendMessage(EM_SETSEL, i, len - 1);
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m_bTextValid = FALSE;
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m_bEditDirty = FALSE;
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}
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else
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{
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m_strPath = buf;
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SetPathToEdit(buf);
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m_bEditDirty = TRUE;
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}
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}
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void
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CFileChooser::OnEditChange()
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{
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if (!m_bInternalChange)
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{
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m_bEditDirty = TRUE;
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}
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}
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LRESULT
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CFileChooser::OnEditSetFocus(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
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{
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m_bInternalChange = TRUE;
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m_edit.SetWindowText(m_strPath);
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m_bInternalChange = FALSE;
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bHandled = FALSE;
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return 0;
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}
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LRESULT
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CFileChooser::OnEditKillFocus(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
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{
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// update internal string buffer with path
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TCHAR buf[MAX_PATH];
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ZeroMemory(buf, MAX_PATH);
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if (m_bEditDirty)
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{
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m_edit.GetWindowText(buf, MAX_PATH);
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m_strPath = buf;
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}
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m_bInternalChange = TRUE;
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SetCompactedPath(m_strPath);
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m_bInternalChange = FALSE;
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m_bEditDirty = FALSE;
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bHandled = FALSE;
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return 0;
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}
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LRESULT
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CFileChooser::OnSetBrowseState(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
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{
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// We are producing dialog on the way back
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if (!wParam)
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{
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OnBrowseBtn();
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}
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bHandled = FALSE;
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return 0;
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}
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void
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CFileChooser::SetCompactedPath(LPCTSTR path)
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{
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// compact path before writing to edit
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CRect rc;
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m_edit.GetClientRect(&rc);
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HDC dc = m_edit.GetDC();
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TCHAR buf[MAX_PATH] = {0};
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StrCpy(buf, path);
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PathMakePretty(buf);
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PathCompactPath(dc, buf, rc.Width());
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m_edit.ReleaseDC(dc);
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m_edit.SetWindowText(buf);
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}
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DWORD
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CFileChooser::GetFileName(CString& strFile)
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{
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DWORD dwRes = FC_SUCCESS;
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TCHAR str[MAX_PATH];
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BOOL expanded = FALSE;
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if ( !m_bTextValid
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|| FC_SUCCESS != ExtractPath(str)
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|| !IsValidPath(str)
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)
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return FC_TEXT_IS_INVALID;
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if (StyleBitSet(FC_PATH_CHECK))
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{
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if (OpenForRead())
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{
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TCHAR str_exp[MAX_PATH];
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lstrcpy(str_exp, str);
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DoEnvironmentSubst(str_exp, MAX_PATH);
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expanded = lstrcmpi(str, str_exp) != 0;
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if (!PathFileExists(str_exp) && !PathIsDirectory(str_exp))
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{
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BOOL bFound = FALSE;
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if (StyleBitSet(FC_CHECK_FILENAME_ONLY))
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{
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// try with default extension(s) if it is just filename
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// without any extensions
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LPTSTR p = PathFindExtension(str_exp);
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if (p != NULL && *p == 0)
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{
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CString strExt, strTest = str_exp;
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std::list<CFilterEntry>::iterator it;
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for (it = m_ext.begin(); it != m_ext.end(); it++)
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{
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strExt = (*it).m_ext;
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if (PathFileExists(strTest + strExt))
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{
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StrCat(str, strExt);
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bFound = TRUE;
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break;
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}
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}
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}
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}
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if (!bFound)
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dwRes = FC_FILE_DOES_NOT_EXIST;
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}
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else if (PathIsDirectory(str_exp))
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{
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if (!StyleBitSet(FC_DIRECTORY_ONLY))
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{
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PathAddBackslash(str);
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dwRes = FC_FILENAME_IS_DIRECTORY;
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}
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}
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else if (StyleBitSet(FC_DIRECTORY_ONLY))
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{
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if (PathFileExists(str_exp))
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dwRes = FC_FILENAME_IS_FILE;
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}
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}
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else if (StyleBitSet(FC_FORWRITE))
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{
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// TODO: make sure we have write access to this path
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}
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}
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if (dwRes == FC_SUCCESS)
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{
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if (StyleBitSet(FC_COMMANDLINE) || expanded)
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{
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// We are returning whole command line, get it again
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GetText(str);
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}
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strFile = str;
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}
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return dwRes;
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}
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BOOL
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CFileChooser::BrowseForFile(CString& strPath, CString& strFile)
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{
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BOOL bRes = FALSE;
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OPENFILENAME ofn;
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TCHAR buf[MAX_PATH];
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ZeroMemory(&ofn, sizeof(OPENFILENAME));
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StrCpy(buf, strFile);
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ofn.lStructSize = sizeof(OPENFILENAME);
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// We are not using template
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ofn.hInstance = NULL;
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ofn.Flags |= m_ofn_Flags;
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ofn.Flags |= OFN_NOCHANGEDIR | OFN_OVERWRITEPROMPT;
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if (OpenForRead())
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ofn.Flags |= OFN_FILEMUSTEXIST;
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else
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ofn.Flags |= (OFN_NOREADONLYRETURN | OFN_NOTESTFILECREATE | OFN_HIDEREADONLY);
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#if (_WIN32_WINNT >= 0x0500)
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ofn.FlagsEx &= ~(OFN_EX_NOPLACESBAR);
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#endif
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// Create filter using our extensions list
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CString strFilter, strDefExt;
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CreateFilter(strFilter, strDefExt);
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ofn.lpstrDefExt = strDefExt;
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ofn.lpstrFile = buf;
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ofn.nMaxFile = MAX_PATH;
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ofn.lpstrInitialDir = strPath.IsEmpty() ? NULL : (LPCTSTR)strPath;
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ofn.lpstrFilter = strFilter;
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ofn.nFilterIndex = GetFilterIndex(strFile);
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// We better set the owner, or this dialog will be visible on task bar
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ofn.hwndOwner = m_pParent->m_hWnd;
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ofn.lpstrTitle = m_strTitle;
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if (StyleBitSet(FC_HIDEREADONLY))
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ofn.Flags |= OFN_HIDEREADONLY;
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if (!StyleBitSet(FC_FORWRITE))
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bRes = GetOpenFileName(&ofn);
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else
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bRes = GetSaveFileName(&ofn);
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if (bRes)
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{
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m_bDoReplaceFile = TRUE;
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}
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else
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{
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#ifdef _DEBUG
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DWORD dwError;
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ASSERT(0 == (dwError = CommDlgExtendedError()));
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#endif
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}
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strFile = buf;
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return bRes;
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}
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static int CALLBACK
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FileChooserCallback(HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM lpData)
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{
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CFileChooser * pThis = (CFileChooser *)lpData;
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ASSERT(pThis != NULL);
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return pThis->BrowseForFolderCallback(hwnd, uMsg, lParam);
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}
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int CFileChooser::BrowseForFolderCallback(HWND hwnd, UINT uMsg, LPARAM lParam)
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{
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switch (uMsg)
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{
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case BFFM_INITIALIZED:
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ASSERT(m_pPathTemp != NULL);
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if (::PathIsNetworkPath(m_pPathTemp))
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return 0;
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while (!::PathIsDirectory(m_pPathTemp))
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{
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if (0 == ::PathRemoveFileSpec(m_pPathTemp) && !::PathIsRoot(m_pPathTemp))
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{
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return 0;
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}
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DWORD attr = GetFileAttributes(m_pPathTemp);
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if (StyleBitSet(FC_FORWRITE) && (attr & FILE_ATTRIBUTE_READONLY) == 0)
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break;
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}
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::SendMessage(hwnd, BFFM_SETSELECTION, TRUE, (LPARAM)m_pPathTemp);
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break;
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case BFFM_SELCHANGED:
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{
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LPITEMIDLIST pidl = (LPITEMIDLIST)lParam;
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TCHAR path[MAX_PATH];
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if (SHGetPathFromIDList(pidl, path))
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{
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::SendMessage(hwnd, BFFM_ENABLEOK, 0, !PathIsNetworkPath(path));
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}
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}
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break;
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case BFFM_VALIDATEFAILED:
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break;
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}
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return 0;
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}
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BOOL
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CFileChooser::BrowseForFolder(CString& strPath)
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{
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LPITEMIDLIST pidl = NULL;
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HRESULT hr;
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BOOL bRes = FALSE;
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if (SUCCEEDED(hr = CoInitialize(NULL)))
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{
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if (SUCCEEDED(SHGetFolderLocation(NULL, CSIDL_DRIVES, NULL, 0, &pidl)))
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{
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LPITEMIDLIST pidList = NULL;
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BROWSEINFO bi;
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TCHAR buf[MAX_PATH];
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ZeroMemory(&bi, sizeof(bi));
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int drive = PathGetDriveNumber(strPath);
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if (GetDriveType(PathBuildRoot(buf, drive)) == DRIVE_FIXED)
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{
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StrCpy(buf, strPath);
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}
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else
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{
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buf[0] = 0;
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}
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bi.hwndOwner = m_pParent->m_hWnd;
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bi.pidlRoot = pidl;
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bi.pszDisplayName = m_pPathTemp = buf;
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bi.lpszTitle = m_strTitle;
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bi.ulFlags |= BIF_NEWDIALOGSTYLE | BIF_RETURNONLYFSDIRS/* | BIF_EDITBOX*/;
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bi.lpfn = FileChooserCallback;
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bi.lParam = (LPARAM)this;
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pidList = SHBrowseForFolder(&bi);
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if ( pidList != NULL
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&& SHGetPathFromIDList(pidList, buf)
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)
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{
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strPath = buf;
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bRes = TRUE;
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}
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IMalloc * pMalloc;
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VERIFY(SUCCEEDED(SHGetMalloc(&pMalloc)));
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if (pidl != NULL)
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pMalloc->Free(pidl);
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pMalloc->Release();
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}
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CoUninitialize();
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}
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return bRes;
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}
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|
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void
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CFileChooser::AddExtension(HINSTANCE hInst, UINT idText, UINT idExt)
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{
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CString text, ext;
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if (text.LoadString(hInst, idText) && ext.LoadString(hInst, idExt))
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{
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AddExtension(text, ext);
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}
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}
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|
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void
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CFileChooser::AddExtension(LPCTSTR text, LPCTSTR ext)
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{
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ASSERT(ext != NULL && *ext == _T('.'));
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CFilterEntry entry(text, ext);
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m_ext.push_back(entry);
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}
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|
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const TCHAR cDelimiter = _T('\n');
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|
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void
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CFileChooser::CreateFilter(CString& strFilter, CString& strDefExt)
|
|
{
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strFilter.Empty();
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strDefExt.Empty();
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BOOL bExtDone = FALSE;
|
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std::list<CFilterEntry>::iterator it;
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for (it = m_ext.begin(); it != m_ext.end(); it++)
|
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{
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CFilterEntry entry = (*it);
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strFilter += entry.m_text;
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if (m_dwStyle & FC_WILDCARD_DESC)
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{
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strFilter += _T(" (*");
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strFilter += entry.m_ext;
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strFilter += _T(")");
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}
|
|
strFilter += cDelimiter;
|
|
strFilter += _T('*');
|
|
strFilter += entry.m_ext;
|
|
strFilter += cDelimiter;
|
|
if (!bExtDone)
|
|
{
|
|
LPCTSTR pExt = entry.m_ext;
|
|
strDefExt =
|
|
*pExt == _T('.') ? pExt + 1 : pExt;
|
|
bExtDone = TRUE;
|
|
}
|
|
}
|
|
if (!strFilter.IsEmpty())
|
|
{
|
|
strFilter += cDelimiter;
|
|
for (int i = 0; i < strFilter.GetLength(); i++)
|
|
{
|
|
if (strFilter[i] == cDelimiter)
|
|
strFilter.SetAt(i, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
CFileChooser::GetFilterIndex(const CString& fileName)
|
|
{
|
|
LPTSTR p = PathFindExtension(fileName);
|
|
if (p == NULL)
|
|
p = (LPTSTR)AllExt;
|
|
std::list<CFilterEntry>::iterator it;
|
|
int idx = 1;
|
|
for (it = m_ext.begin(); it != m_ext.end(); it++, idx++)
|
|
{
|
|
if (StrCmpI((*it).m_ext, p) == 0)
|
|
return idx;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
CFileChooser::GetText(LPTSTR buf)
|
|
{
|
|
ASSERT(buf != NULL);
|
|
|
|
if (m_bEditDirty)
|
|
{
|
|
m_edit.GetWindowText(buf, MAX_PATH);
|
|
}
|
|
else
|
|
{
|
|
StrCpy(buf, m_strPath);
|
|
}
|
|
}
|
|
|
|
int
|
|
CFileChooser::ExtractPath(LPTSTR path)
|
|
{
|
|
ASSERT(path != NULL);
|
|
int rc = FC_SUCCESS;
|
|
TCHAR buf[MAX_PATH] = {0};
|
|
LPTSTR start = buf;
|
|
|
|
GetText(buf);
|
|
|
|
if (StyleBitSet(FC_COMMANDLINE))
|
|
{
|
|
if (*buf == QuotMark)
|
|
{
|
|
LPTSTR end = StrChr(++start, QuotMark);
|
|
if (end == NULL)
|
|
{
|
|
// Wrong format, closing quotation mark is not set
|
|
rc = FC_NO_CLOSING_QUOTE;
|
|
// Return part of the path up to first space
|
|
PathRemoveArgs(buf);
|
|
}
|
|
else
|
|
{
|
|
++end;
|
|
*end = 0;
|
|
PathUnquoteSpaces(buf);
|
|
start = buf;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
PathRemoveArgs(buf);
|
|
}
|
|
}
|
|
|
|
StrCpy(path, start);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int
|
|
CFileChooser::ExtractArgs(LPTSTR buf)
|
|
{
|
|
ASSERT(buf != NULL);
|
|
|
|
int rc = FC_SUCCESS;
|
|
|
|
GetText(buf);
|
|
LPTSTR p = PathGetArgs(buf);
|
|
if (p != NULL)
|
|
{
|
|
StrCpy(buf, p);
|
|
}
|
|
else
|
|
{
|
|
*buf = 0;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
void
|
|
CFileChooser::OnBrowseBtn()
|
|
{
|
|
BOOL bRes = FALSE;
|
|
if (m_bDialogActive)
|
|
return;
|
|
m_bDialogActive = TRUE;
|
|
TCHAR path[MAX_PATH] = {0};
|
|
TCHAR args[MAX_PATH] = {0};
|
|
|
|
int rc = ExtractPath(path);
|
|
if (StyleBitSet(FC_COMMANDLINE))
|
|
{
|
|
ExtractArgs(args);
|
|
}
|
|
CString strFile, strBuffer;
|
|
// m_strPath = path;
|
|
strBuffer = path;
|
|
|
|
if (StyleBitSet(FC_FORWRITE))
|
|
{
|
|
if (!PathIsDirectory(path))
|
|
{
|
|
if (PathRemoveFileSpec(path))
|
|
{
|
|
// check if path part of filename exists
|
|
if (PathIsDirectory(path))
|
|
{
|
|
// we will use non-path part of spec as a filename
|
|
strFile = PathFindFileName(strBuffer);
|
|
}
|
|
else
|
|
{
|
|
// it is wrong path, use default one
|
|
// TODO: actually I need to take from filespec all existent
|
|
// chunks of path and filename, for example c:\aa\bb\cc\dd.txt,
|
|
// if c:\aa\bb exists, then strPath should be set to c:\aa\bb,
|
|
// and strFile to dd.txt
|
|
path[0] = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// it is filename only
|
|
strFile = strBuffer;
|
|
path[0] = 0;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!PathIsDirectory(path))
|
|
{
|
|
strFile = PathFindFileName(path);
|
|
PathRemoveFileSpec(path);
|
|
}
|
|
}
|
|
CString strPath(path);
|
|
if (StyleBitSet(FC_DIRECTORY_ONLY))
|
|
{
|
|
bRes = BrowseForFolder(strPath);
|
|
if (bRes)
|
|
{
|
|
StrCpy(path, strPath);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bRes = BrowseForFile(strPath, strFile);
|
|
if (bRes)
|
|
{
|
|
StrCpy(path, strFile);
|
|
}
|
|
}
|
|
if (bRes)
|
|
{
|
|
if (StyleBitSet(FC_COMMANDLINE))
|
|
{
|
|
PathQuoteSpaces(path);
|
|
m_strPath = path;
|
|
if (*args != 0)
|
|
{
|
|
m_strPath += _T(' ');
|
|
m_strPath += args;
|
|
}
|
|
}
|
|
else
|
|
m_strPath = path;
|
|
SetPathToEdit(m_strPath);
|
|
m_bEditDirty = FALSE;
|
|
}
|
|
m_bDialogActive = FALSE;
|
|
}
|