| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: dirdlg.cpp |
| 3 | // Purpose: wxDirDialog |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 01/02/97 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart and Markus Holzem |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #ifdef __GNUG__ |
| 21 | #pragma implementation "dirdlg.h" |
| 22 | #endif |
| 23 | |
| 24 | // For compilers that support precompilation, includes "wx.h". |
| 25 | #include "wx/wxprec.h" |
| 26 | |
| 27 | #ifdef __BORLANDC__ |
| 28 | #pragma hdrstop |
| 29 | #endif |
| 30 | |
| 31 | #if wxUSE_DIRDLG |
| 32 | |
| 33 | #if defined(__WIN95__) && !defined(__GNUWIN32_OLD__) && wxUSE_OLE |
| 34 | |
| 35 | #ifndef WX_PRECOMP |
| 36 | #include "wx/utils.h" |
| 37 | #include "wx/dialog.h" |
| 38 | #include "wx/dirdlg.h" |
| 39 | #include "wx/log.h" |
| 40 | #endif |
| 41 | |
| 42 | #include "wx/msw/private.h" |
| 43 | |
| 44 | #include <shlobj.h> // Win95 shell |
| 45 | |
| 46 | // ---------------------------------------------------------------------------- |
| 47 | // constants |
| 48 | // ---------------------------------------------------------------------------- |
| 49 | |
| 50 | #ifndef MAX_PATH |
| 51 | #define MAX_PATH 4096 // be generous |
| 52 | #endif |
| 53 | |
| 54 | // ---------------------------------------------------------------------------- |
| 55 | // wxWindows macros |
| 56 | // ---------------------------------------------------------------------------- |
| 57 | |
| 58 | IMPLEMENT_CLASS(wxDirDialog, wxDialog) |
| 59 | |
| 60 | // ---------------------------------------------------------------------------- |
| 61 | // private functions prototypes |
| 62 | // ---------------------------------------------------------------------------- |
| 63 | |
| 64 | // free the parameter |
| 65 | static void ItemListFree(LPITEMIDLIST pidl); |
| 66 | |
| 67 | // the callback proc for the dir dlg |
| 68 | static int CALLBACK BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lp, |
| 69 | LPARAM pData); |
| 70 | |
| 71 | |
| 72 | // ============================================================================ |
| 73 | // implementation |
| 74 | // ============================================================================ |
| 75 | |
| 76 | // ---------------------------------------------------------------------------- |
| 77 | // wxDirDialog |
| 78 | // ---------------------------------------------------------------------------- |
| 79 | |
| 80 | wxDirDialog::wxDirDialog(wxWindow *parent, |
| 81 | const wxString& message, |
| 82 | const wxString& defaultPath, |
| 83 | long WXUNUSED(style), |
| 84 | const wxPoint& WXUNUSED(pos)) |
| 85 | { |
| 86 | m_message = message; |
| 87 | m_parent = parent; |
| 88 | |
| 89 | SetPath(defaultPath); |
| 90 | } |
| 91 | |
| 92 | void wxDirDialog::SetPath(const wxString& path) |
| 93 | { |
| 94 | m_path = path; |
| 95 | |
| 96 | // SHBrowseForFolder doesn't like '/'s nor the trailing backslashes |
| 97 | m_path.Replace(_T("/"), _T("\\")); |
| 98 | if ( !m_path.empty() ) |
| 99 | { |
| 100 | while ( *(m_path.end() - 1) == _T('\\') ) |
| 101 | { |
| 102 | m_path.erase(m_path.length() - 1); |
| 103 | } |
| 104 | |
| 105 | // but the root drive should have a trailing slash (again, this is just |
| 106 | // the way the native dialog works) |
| 107 | if ( *(m_path.end() - 1) == _T(':') ) |
| 108 | { |
| 109 | m_path += _T('\\'); |
| 110 | } |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | int wxDirDialog::ShowModal() |
| 115 | { |
| 116 | wxWindow *parent = GetParent(); |
| 117 | |
| 118 | BROWSEINFO bi; |
| 119 | bi.hwndOwner = parent ? GetHwndOf(parent) : NULL; |
| 120 | bi.pidlRoot = NULL; |
| 121 | bi.pszDisplayName = NULL; |
| 122 | bi.lpszTitle = m_message.c_str(); |
| 123 | bi.ulFlags = BIF_RETURNONLYFSDIRS | BIF_STATUSTEXT; |
| 124 | bi.lpfn = BrowseCallbackProc; |
| 125 | bi.lParam = (LPARAM)m_path.c_str(); // param for the callback |
| 126 | |
| 127 | LPITEMIDLIST pidl = SHBrowseForFolder(&bi); |
| 128 | |
| 129 | if ( bi.pidlRoot ) |
| 130 | { |
| 131 | ItemListFree((LPITEMIDLIST)bi.pidlRoot); |
| 132 | } |
| 133 | |
| 134 | if ( !pidl ) |
| 135 | { |
| 136 | // Cancel button pressed |
| 137 | return wxID_CANCEL; |
| 138 | } |
| 139 | |
| 140 | BOOL ok = SHGetPathFromIDList(pidl, m_path.GetWriteBuf(MAX_PATH)); |
| 141 | m_path.UngetWriteBuf(); |
| 142 | |
| 143 | ItemListFree(pidl); |
| 144 | |
| 145 | if ( !ok ) |
| 146 | { |
| 147 | wxLogLastError(wxT("SHGetPathFromIDList")); |
| 148 | |
| 149 | return wxID_CANCEL; |
| 150 | } |
| 151 | |
| 152 | return wxID_OK; |
| 153 | } |
| 154 | |
| 155 | // ---------------------------------------------------------------------------- |
| 156 | // private functions |
| 157 | // ---------------------------------------------------------------------------- |
| 158 | |
| 159 | static int CALLBACK |
| 160 | BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lp, LPARAM pData) |
| 161 | { |
| 162 | switch(uMsg) |
| 163 | { |
| 164 | case BFFM_INITIALIZED: |
| 165 | // sent immediately after initialisation and so we may set the |
| 166 | // initial selection here |
| 167 | // |
| 168 | // wParam = TRUE => lParam is a string and not a PIDL |
| 169 | SendMessage(hwnd, BFFM_SETSELECTION, TRUE, pData); |
| 170 | break; |
| 171 | |
| 172 | case BFFM_SELCHANGED: |
| 173 | { |
| 174 | // Set the status window to the currently selected path. |
| 175 | TCHAR szDir[MAX_PATH]; |
| 176 | if ( SHGetPathFromIDList((LPITEMIDLIST)lp, szDir) ) |
| 177 | { |
| 178 | wxString strDir(szDir); |
| 179 | int maxChars = 40; // Have to truncate string else it displays incorrectly |
| 180 | if (strDir.Len() > (size_t) (maxChars - 3)) |
| 181 | { |
| 182 | strDir = strDir.Right(maxChars - 3); |
| 183 | strDir = wxString(wxT("...")) + strDir; |
| 184 | } |
| 185 | SendMessage(hwnd, BFFM_SETSTATUSTEXT, 0, (LPARAM) (const wxChar*) strDir); |
| 186 | } |
| 187 | } |
| 188 | break; |
| 189 | |
| 190 | //case BFFM_VALIDATEFAILED: -- might be used to provide custom message |
| 191 | // if the user types in invalid dir name |
| 192 | } |
| 193 | |
| 194 | return 0; |
| 195 | } |
| 196 | |
| 197 | |
| 198 | static void ItemListFree(LPITEMIDLIST pidl) |
| 199 | { |
| 200 | if ( pidl ) |
| 201 | { |
| 202 | LPMALLOC pMalloc; |
| 203 | SHGetMalloc(&pMalloc); |
| 204 | if ( pMalloc ) |
| 205 | { |
| 206 | pMalloc->Free(pidl); |
| 207 | pMalloc->Release(); |
| 208 | } |
| 209 | else |
| 210 | { |
| 211 | wxLogLastError(wxT("SHGetMalloc")); |
| 212 | } |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | #else |
| 217 | #include "../generic/dirdlgg.cpp" |
| 218 | #endif // compiler/platform on which the code here compiles |
| 219 | |
| 220 | #endif // wxUSE_DIRDLG |