src/common/fldlgcmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        common/fldlgcmn.cpp
   3 // Purpose:     wxFileDialog common functions
   4 // Author:      John Labenski
   5 // Modified by:
   6 // Created:     14.06.03 (extracted from src/*/filedlg.cpp)
   7 // RCS-ID:
   8 // Copyright:   (c) Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "filedlg.h"
  14 #endif
  15
  16 #ifdef __BORLANDC__
  17 #pragma hdrstop
  18 #endif
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/string.h"
  25     #include "wx/intl.h"
  26     #include "wx/window.h"
  27 #endif // WX_PRECOMP
  28
  29 #include "wx/filedlg.h"
  30
  31 #if wxUSE_FILEDLG
  32
  33 //----------------------------------------------------------------------------
  34 // wxFileDialogBase
  35 //----------------------------------------------------------------------------
  36
  37 IMPLEMENT_DYNAMIC_CLASS(wxFileDialogBase, wxDialog)
  38
  39 wxFileDialogBase::wxFileDialogBase(wxWindow *parent,
  40                                    const wxString& message,
  41                                    const wxString& defaultDir,
  42                                    const wxString& defaultFile,
  43                                    const wxString& wildCard,
  44                                    long style,
  45                                    const wxPoint& WXUNUSED(pos))
  46                 : m_message(message),
  47                   m_dir(defaultDir),
  48                   m_fileName(defaultFile),
  49                   m_wildCard(wildCard)
  50 {
  51     m_parent = parent;
  52     m_dialogStyle = style;
  53     m_filterIndex = 0;
  54
  55     if ( wildCard.empty() || wildCard == wxFileSelectorDefaultWildcardStr )
  56     {
  57         m_wildCard = wxString::Format(_("All files (%s)|%s"),
  58                                       wxFileSelectorDefaultWildcardStr,
  59                                       wxFileSelectorDefaultWildcardStr);
  60     }
  61     else // have wild card
  62     {
  63         // convert m_wildCard from "*.bar" to "bar files (*.bar)|*.bar"
  64         if ( m_wildCard.Find(wxT('|')) == wxNOT_FOUND )
  65         {
  66             wxString::size_type nDot = m_wildCard.find(_T("*."));
  67             if ( nDot != wxString::npos )
  68                 nDot++;
  69             else
  70                 nDot = 0;
  71
  72             m_wildCard = wxString::Format
  73                          (
  74                             _("%s files (%s)|%s"),
  75                             wildCard.c_str() + nDot,
  76                             wildCard.c_str(),
  77                             wildCard.c_str()
  78                          );
  79         }
  80     }
  81 }
  82
  83 #if WXWIN_COMPATIBILITY_2_4
  84 // Parses the filterStr, returning the number of filters.
  85 // Returns 0 if none or if there's a problem.
  86 // filterStr is in the form: "All files (*.*)|*.*|JPEG Files (*.jpeg)|*.jpg"
  87 int wxFileDialogBase::ParseWildcard(const wxString& filterStr,
  88                                     wxArrayString& descriptions,
  89                                     wxArrayString& filters)
  90 {
  91     return ::wxParseCommonDialogsFilter(filterStr, descriptions, filters);
  92 }
  93 #endif // WXWIN_COMPATIBILITY_2_4
  94
  95 wxString wxFileDialogBase::AppendExtension(const wxString &filePath,
  96                                            const wxString &extensionList)
  97 {
  98     // strip off path, to avoid problems with "path.bar/foo"
  99     wxString fileName = filePath.AfterLast(wxFILE_SEP_PATH);
 100
 101     // if fileName is of form "foo.bar" it's ok, return it
 102     int idx_dot = fileName.Find(wxT('.'), true);
 103     if ((idx_dot != wxNOT_FOUND) && (idx_dot < (int)fileName.Len() - 1))
 104         return filePath;
 105
 106     // get the first extension from extensionList, or all of it
 107     wxString ext = extensionList.BeforeFirst(wxT(';'));
 108
 109     // if ext == "foo" or "foo." there's no extension
 110     int idx_ext_dot = ext.Find(wxT('.'), true);
 111     if ((idx_ext_dot == wxNOT_FOUND) || (idx_ext_dot == (int)ext.Len() - 1))
 112         return filePath;
 113     else
 114         ext = ext.AfterLast(wxT('.'));
 115
 116     // if ext == "*" or "bar*" or "b?r" or " " then its not valid
 117     if ((ext.Find(wxT('*')) != wxNOT_FOUND) ||
 118         (ext.Find(wxT('?')) != wxNOT_FOUND) ||
 119         (ext.Strip(wxString::both).IsEmpty()))
 120         return filePath;
 121
 122     // if fileName doesn't have a '.' then add one
 123     if (filePath.Last() != wxT('.'))
 124         ext = wxT(".") + ext;
 125
 126     return filePath + ext;
 127 }
 128
 129 //----------------------------------------------------------------------------
 130 // wxFileDialog convenience functions
 131 //----------------------------------------------------------------------------
 132
 133 wxString wxFileSelector(const wxChar *title,
 134                                const wxChar *defaultDir,
 135                                const wxChar *defaultFileName,
 136                                const wxChar *defaultExtension,
 137                                const wxChar *filter,
 138                                int flags,
 139                                wxWindow *parent,
 140                                int x, int y)
 141 {
 142     // The defaultExtension, if non-NULL, is
 143     // appended to the filename if the user fails to type an extension. The new
 144     // implementation (taken from wxFileSelectorEx) appends the extension
 145     // automatically, by looking at the filter specification. In fact this
 146     // should be better than the native Microsoft implementation because
 147     // Windows only allows *one* default extension, whereas here we do the
 148     // right thing depending on the filter the user has chosen.
 149
 150     // If there's a default extension specified but no filter, we create a
 151     // suitable filter.
 152
 153     wxString filter2;
 154     if ( defaultExtension && !filter )
 155         filter2 = wxString(wxT("*.")) + defaultExtension;
 156     else if ( filter )
 157         filter2 = filter;
 158
 159     wxString defaultDirString;
 160     if (defaultDir)
 161         defaultDirString = defaultDir;
 162
 163     wxString defaultFilenameString;
 164     if (defaultFileName)
 165         defaultFilenameString = defaultFileName;
 166
 167     wxFileDialog fileDialog(parent, title, defaultDirString,
 168                             defaultFilenameString, filter2,
 169                             flags, wxPoint(x, y));
 170
 171    // if filter is of form "All files (*)|*|..." set correct filter index
 172     if((wxStrlen(defaultExtension) != 0) && (filter2.Find(wxT('|')) != wxNOT_FOUND))
 173             {
 174         int filterIndex = 0;
 175
 176         wxArrayString descriptions, filters;
 177         // don't care about errors, handled already by wxFileDialog
 178         (void)wxParseCommonDialogsFilter(filter2, descriptions, filters);
 179         for (size_t n=0; n<filters.GetCount(); n++)
 180                 {
 181             if (filters[n].Contains(defaultExtension))
 182                     {
 183                 filterIndex = n;
 184                         break;
 185                     }
 186                 }
 187
 188         if (filterIndex > 0)
 189             fileDialog.SetFilterIndex(filterIndex);
 190         }
 191
 192     wxString filename;
 193     if ( fileDialog.ShowModal() == wxID_OK )
 194     {
 195         filename = fileDialog.GetPath();
 196     }
 197
 198     return filename;
 199 }
 200
 201 //----------------------------------------------------------------------------
 202 // wxFileSelectorEx
 203 //----------------------------------------------------------------------------
 204
 205 wxString wxFileSelectorEx(const wxChar *title,
 206                           const wxChar *defaultDir,
 207                           const wxChar *defaultFileName,
 208                           int* defaultFilterIndex,
 209                           const wxChar *filter,
 210                           int       flags,
 211                           wxWindow* parent,
 212                           int       x,
 213                           int       y)
 214
 215 {
 216     wxFileDialog fileDialog(parent,
 217                             title ? title : wxT(""),
 218                             defaultDir ? defaultDir : wxT(""),
 219                             defaultFileName ? defaultFileName : wxT(""),
 220                             filter ? filter : wxT(""),
 221                             flags, wxPoint(x, y));
 222
 223     wxString filename;
 224     if ( fileDialog.ShowModal() == wxID_OK )
 225     {
 226         if ( defaultFilterIndex )
 227             *defaultFilterIndex = fileDialog.GetFilterIndex();
 228
 229         filename = fileDialog.GetPath();
 230     }
 231
 232     return filename;
 233 }
 234
 235 //----------------------------------------------------------------------------
 236 // wxDefaultFileSelector - Generic load/save dialog (for internal use only)
 237 //----------------------------------------------------------------------------
 238
 239 static wxString wxDefaultFileSelector(bool load,
 240                                       const wxChar *what,
 241                                       const wxChar *extension,
 242                                       const wxChar *default_name,
 243                                       wxWindow *parent)
 244 {
 245     wxString prompt;
 246     wxString str;
 247     if (load)
 248         str = _("Load %s file");
 249     else
 250         str = _("Save %s file");
 251     prompt.Printf(str, what);
 252
 253     wxString wild;
 254     const wxChar *ext = extension;
 255     if ( ext )
 256     {
 257         if ( *ext == wxT('.') )
 258             ext++;
 259
 260         wild.Printf(wxT("*.%s"), ext);
 261     }
 262     else // no extension specified
 263     {
 264         wild = wxFileSelectorDefaultWildcardStr;
 265     }
 266
 267     return wxFileSelector(prompt, NULL, default_name, ext, wild,
 268                           load ? wxOPEN : wxSAVE, parent);
 269 }
 270
 271 //----------------------------------------------------------------------------
 272 // wxLoadFileSelector
 273 //----------------------------------------------------------------------------
 274
 275 WXDLLEXPORT wxString wxLoadFileSelector(const wxChar *what,
 276                                         const wxChar *extension,
 277                                         const wxChar *default_name,
 278                                         wxWindow *parent)
 279 {
 280     return wxDefaultFileSelector(true, what, extension, default_name, parent);
 281 }
 282
 283 //----------------------------------------------------------------------------
 284 // wxSaveFileSelector
 285 //----------------------------------------------------------------------------
 286
 287 WXDLLEXPORT wxString wxSaveFileSelector(const wxChar *what,
 288                                         const wxChar *extension,
 289                                         const wxChar *default_name,
 290                                         wxWindow *parent)
 291 {
 292     return wxDefaultFileSelector(false, what, extension, default_name, parent);
 293 }
 294
 295 #endif // wxUSE_FILEDLG
 296