include/wx/filepicker.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/filepicker.h
   3 // Purpose:     wxFilePickerCtrl, wxDirPickerCtrl base header
   4 // Author:      Francesco Montorsi
   5 // Modified by:
   6 // Created:     14/4/2006
   7 // Copyright:   (c) Francesco Montorsi
   8 // RCS-ID:      $Id$
   9 // Licence:     wxWindows Licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_FILEDIRPICKER_H_BASE_
  13 #define _WX_FILEDIRPICKER_H_BASE_
  14
  15 #include "wx/defs.h"
  16
  17 #if wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
  18
  19 #include "wx/pickerbase.h"
  20 #include "wx/filename.h"
  21
  22 class WXDLLIMPEXP_FWD_CORE wxDialog;
  23 class WXDLLIMPEXP_FWD_CORE wxFileDirPickerEvent;
  24
  25 extern WXDLLIMPEXP_DATA_CORE(const char) wxFilePickerWidgetLabel[];
  26 extern WXDLLIMPEXP_DATA_CORE(const char) wxFilePickerWidgetNameStr[];
  27 extern WXDLLIMPEXP_DATA_CORE(const char) wxFilePickerCtrlNameStr[];
  28 extern WXDLLIMPEXP_DATA_CORE(const char) wxFileSelectorPromptStr[];
  29
  30 extern WXDLLIMPEXP_DATA_CORE(const char) wxDirPickerWidgetLabel[];
  31 extern WXDLLIMPEXP_DATA_CORE(const char) wxDirPickerWidgetNameStr[];
  32 extern WXDLLIMPEXP_DATA_CORE(const char) wxDirPickerCtrlNameStr[];
  33 extern WXDLLIMPEXP_DATA_CORE(const char) wxDirSelectorPromptStr[];
  34
  35 // ----------------------------------------------------------------------------
  36 // wxFileDirPickerEvent: used by wxFilePickerCtrl and wxDirPickerCtrl only
  37 // ----------------------------------------------------------------------------
  38
  39 class WXDLLIMPEXP_CORE wxFileDirPickerEvent : public wxCommandEvent
  40 {
  41 public:
  42     wxFileDirPickerEvent() {}
  43     wxFileDirPickerEvent(wxEventType type, wxObject *generator, int id, const wxString &path)
  44         : wxCommandEvent(type, id),
  45           m_path(path)
  46     {
  47         SetEventObject(generator);
  48     }
  49
  50     wxString GetPath() const { return m_path; }
  51     void SetPath(const wxString &p) { m_path = p; }
  52
  53     // default copy ctor, assignment operator and dtor are ok
  54     virtual wxEvent *Clone() const { return new wxFileDirPickerEvent(*this); }
  55
  56 private:
  57     wxString m_path;
  58
  59     DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxFileDirPickerEvent)
  60 };
  61
  62 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_COMMAND_FILEPICKER_CHANGED, wxFileDirPickerEvent );
  63 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_COMMAND_DIRPICKER_CHANGED, wxFileDirPickerEvent );
  64
  65 // ----------------------------------------------------------------------------
  66 // event types and macros
  67 // ----------------------------------------------------------------------------
  68
  69 typedef void (wxEvtHandler::*wxFileDirPickerEventFunction)(wxFileDirPickerEvent&);
  70
  71 #define wxFileDirPickerEventHandler(func) \
  72     wxEVENT_HANDLER_CAST(wxFileDirPickerEventFunction, func)
  73
  74 #define EVT_FILEPICKER_CHANGED(id, fn) \
  75     wx__DECLARE_EVT1(wxEVT_COMMAND_FILEPICKER_CHANGED, id, wxFileDirPickerEventHandler(fn))
  76 #define EVT_DIRPICKER_CHANGED(id, fn) \
  77     wx__DECLARE_EVT1(wxEVT_COMMAND_DIRPICKER_CHANGED, id, wxFileDirPickerEventHandler(fn))
  78
  79 // ----------------------------------------------------------------------------
  80 // wxFileDirPickerWidgetBase: a generic abstract interface which must be
  81 //                           implemented by controls used by wxFileDirPickerCtrlBase
  82 // ----------------------------------------------------------------------------
  83
  84 class WXDLLIMPEXP_CORE wxFileDirPickerWidgetBase
  85 {
  86 public:
  87     wxFileDirPickerWidgetBase() {  }
  88     virtual ~wxFileDirPickerWidgetBase() {  }
  89
  90     // Path here is the name of the selected file or directory.
  91     wxString GetPath() const { return m_path; }
  92     virtual void SetPath(const wxString &str) { m_path=str; }
  93
  94     // Set the directory to open the file browse dialog at initially.
  95     virtual void SetInitialDirectory(const wxString& dir) = 0;
  96
  97     // returns the picker widget cast to wxControl
  98     virtual wxControl *AsControl() = 0;
  99
 100 protected:
 101     virtual void UpdateDialogPath(wxDialog *) = 0;
 102     virtual void UpdatePathFromDialog(wxDialog *) = 0;
 103
 104     wxString m_path;
 105 };
 106
 107 // Styles which must be supported by all controls implementing wxFileDirPickerWidgetBase
 108 // NB: these styles must be defined to carefully-chosen values to
 109 //     avoid conflicts with wxButton's styles
 110
 111 #define wxFLP_OPEN                    0x0400
 112 #define wxFLP_SAVE                    0x0800
 113 #define wxFLP_OVERWRITE_PROMPT        0x1000
 114 #define wxFLP_FILE_MUST_EXIST         0x2000
 115 #define wxFLP_CHANGE_DIR              0x4000
 116 #define wxFLP_SMALL                   wxPB_SMALL
 117
 118 // NOTE: wxMULTIPLE is not supported !
 119
 120
 121 #define wxDIRP_DIR_MUST_EXIST         0x0008
 122 #define wxDIRP_CHANGE_DIR             0x0010
 123 #define wxDIRP_SMALL                  wxPB_SMALL
 124
 125
 126 // map platform-dependent controls which implement the wxFileDirPickerWidgetBase
 127 // under the name "wxFilePickerWidget" and "wxDirPickerWidget".
 128 // NOTE: wxFileDirPickerCtrlBase will allocate a wx{File|Dir}PickerWidget and this
 129 //       requires that all classes being mapped as wx{File|Dir}PickerWidget have the
 130 //       same prototype for the contructor...
 131 // since GTK >= 2.6, there is GtkFileButton
 132 #if defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)
 133     #include "wx/gtk/filepicker.h"
 134     #define wxFilePickerWidget      wxFileButton
 135     #define wxDirPickerWidget       wxDirButton
 136 #else
 137     #include "wx/generic/filepickerg.h"
 138     #define wxFilePickerWidget      wxGenericFileButton
 139     #define wxDirPickerWidget       wxGenericDirButton
 140 #endif
 141
 142
 143
 144 // ----------------------------------------------------------------------------
 145 // wxFileDirPickerCtrlBase
 146 // ----------------------------------------------------------------------------
 147
 148 class WXDLLIMPEXP_CORE wxFileDirPickerCtrlBase : public wxPickerBase
 149 {
 150 public:
 151     wxFileDirPickerCtrlBase() : m_bIgnoreNextTextCtrlUpdate(false) {}
 152
 153 protected:
 154     // NB: no default values since this function will never be used
 155     //     directly by the user and derived classes wouldn't use them
 156     bool CreateBase(wxWindow *parent,
 157                     wxWindowID id,
 158                     const wxString& path,
 159                     const wxString &message,
 160                     const wxString &wildcard,
 161                     const wxPoint& pos,
 162                     const wxSize& size,
 163                     long style,
 164                     const wxValidator& validator,
 165                     const wxString& name);
 166
 167 public:         // public API
 168
 169     wxString GetPath() const;
 170     void SetPath(const wxString &str);
 171
 172     // Set the directory to open the file browse dialog at initially.
 173     void SetInitialDirectory(const wxString& dir)
 174     {
 175         m_pickerIface->SetInitialDirectory(dir);
 176     }
 177
 178 public:        // internal functions
 179
 180     void UpdatePickerFromTextCtrl();
 181     void UpdateTextCtrlFromPicker();
 182
 183     // event handler for our picker
 184     void OnFileDirChange(wxFileDirPickerEvent &);
 185
 186     // Returns TRUE if the current path is a valid one
 187     // (i.e. a valid file for a wxFilePickerWidget or a valid
 188     //  folder for a wxDirPickerWidget).
 189     virtual bool CheckPath(const wxString &str) const = 0;
 190
 191     // TRUE if any textctrl change should update the current working directory
 192     virtual bool IsCwdToUpdate() const = 0;
 193
 194     // Returns the event type sent by this picker
 195     virtual wxEventType GetEventType() const = 0;
 196
 197     virtual void DoConnect( wxControl *sender, wxFileDirPickerCtrlBase *eventSink ) = 0;
 198
 199     // Returns the filtered value currently placed in the text control (if present).
 200     virtual wxString GetTextCtrlValue() const = 0;
 201
 202 protected:
 203     // creates the picker control
 204     virtual
 205     wxFileDirPickerWidgetBase *CreatePicker(wxWindow *parent,
 206                                             const wxString& path,
 207                                             const wxString& message,
 208                                             const wxString& wildcard) = 0;
 209
 210 protected:
 211
 212     // true if the next UpdateTextCtrl() call is to ignore
 213     bool m_bIgnoreNextTextCtrlUpdate;
 214
 215     // m_picker object as wxFileDirPickerWidgetBase interface
 216     wxFileDirPickerWidgetBase *m_pickerIface;
 217 };
 218
 219 #endif  // wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
 220
 221
 222 #if wxUSE_FILEPICKERCTRL
 223
 224 // ----------------------------------------------------------------------------
 225 // wxFilePickerCtrl: platform-independent class which embeds the
 226 // platform-dependent wxFilePickerWidget and, if wxFLP_USE_TEXTCTRL style is
 227 // used, a textctrl next to it.
 228 // ----------------------------------------------------------------------------
 229
 230 #define wxFLP_USE_TEXTCTRL            (wxPB_USE_TEXTCTRL)
 231
 232 #ifdef __WXGTK__
 233     // GTK apps usually don't have a textctrl next to the picker
 234     #define wxFLP_DEFAULT_STYLE       (wxFLP_OPEN|wxFLP_FILE_MUST_EXIST)
 235 #else
 236     #define wxFLP_DEFAULT_STYLE       (wxFLP_USE_TEXTCTRL|wxFLP_OPEN|wxFLP_FILE_MUST_EXIST)
 237 #endif
 238
 239 class WXDLLIMPEXP_CORE wxFilePickerCtrl : public wxFileDirPickerCtrlBase
 240 {
 241 public:
 242     wxFilePickerCtrl() {}
 243
 244     wxFilePickerCtrl(wxWindow *parent,
 245                      wxWindowID id,
 246                      const wxString& path = wxEmptyString,
 247                      const wxString& message = wxFileSelectorPromptStr,
 248                      const wxString& wildcard = wxFileSelectorDefaultWildcardStr,
 249                      const wxPoint& pos = wxDefaultPosition,
 250                      const wxSize& size = wxDefaultSize,
 251                      long style = wxFLP_DEFAULT_STYLE,
 252                      const wxValidator& validator = wxDefaultValidator,
 253                      const wxString& name = wxFilePickerCtrlNameStr)
 254     {
 255         Create(parent, id, path, message, wildcard, pos, size, style,
 256                validator, name);
 257     }
 258
 259     bool Create(wxWindow *parent,
 260                 wxWindowID id,
 261                 const wxString& path = wxEmptyString,
 262                 const wxString& message = wxFileSelectorPromptStr,
 263                 const wxString& wildcard = wxFileSelectorDefaultWildcardStr,
 264                 const wxPoint& pos = wxDefaultPosition,
 265                 const wxSize& size = wxDefaultSize,
 266                 long style = wxFLP_DEFAULT_STYLE,
 267                 const wxValidator& validator = wxDefaultValidator,
 268                 const wxString& name = wxFilePickerCtrlNameStr);
 269
 270     void SetFileName(const wxFileName &filename)
 271         { SetPath(filename.GetFullPath()); }
 272
 273     wxFileName GetFileName() const
 274         { return wxFileName(GetPath()); }
 275
 276 public:     // overrides
 277
 278     // return true if the given path is valid for this control
 279     bool CheckPath(const wxString& path) const;
 280
 281     // return the text control value in canonical form
 282     wxString GetTextCtrlValue() const;
 283
 284     bool IsCwdToUpdate() const
 285         { return HasFlag(wxFLP_CHANGE_DIR); }
 286
 287     wxEventType GetEventType() const
 288         { return wxEVT_COMMAND_FILEPICKER_CHANGED; }
 289
 290     virtual void DoConnect( wxControl *sender, wxFileDirPickerCtrlBase *eventSink )
 291     {
 292         sender->Connect( wxEVT_COMMAND_FILEPICKER_CHANGED,
 293             wxFileDirPickerEventHandler( wxFileDirPickerCtrlBase::OnFileDirChange ),
 294             NULL, eventSink );
 295     }
 296
 297
 298 protected:
 299     virtual
 300     wxFileDirPickerWidgetBase *CreatePicker(wxWindow *parent,
 301                                             const wxString& path,
 302                                             const wxString& message,
 303                                             const wxString& wildcard)
 304     {
 305         return new wxFilePickerWidget(parent, wxID_ANY,
 306                                       wxGetTranslation(wxFilePickerWidgetLabel),
 307                                       path, message, wildcard,
 308                                       wxDefaultPosition, wxDefaultSize,
 309                                       GetPickerStyle(GetWindowStyle()));
 310     }
 311
 312     // extracts the style for our picker from wxFileDirPickerCtrlBase's style
 313     long GetPickerStyle(long style) const
 314     {
 315         return style & (wxFLP_OPEN |
 316                         wxFLP_SAVE |
 317                         wxFLP_OVERWRITE_PROMPT |
 318                         wxFLP_FILE_MUST_EXIST |
 319                         wxFLP_CHANGE_DIR |
 320                         wxFLP_USE_TEXTCTRL |
 321                         wxFLP_SMALL);
 322     }
 323
 324 private:
 325     DECLARE_DYNAMIC_CLASS(wxFilePickerCtrl)
 326 };
 327
 328 #endif      // wxUSE_FILEPICKERCTRL
 329
 330
 331 #if wxUSE_DIRPICKERCTRL
 332
 333 // ----------------------------------------------------------------------------
 334 // wxDirPickerCtrl: platform-independent class which embeds the
 335 // platform-dependent wxDirPickerWidget and eventually a textctrl
 336 // (see wxDIRP_USE_TEXTCTRL) next to it.
 337 // ----------------------------------------------------------------------------
 338
 339 #define wxDIRP_USE_TEXTCTRL            (wxPB_USE_TEXTCTRL)
 340
 341 #ifdef __WXGTK__
 342     // GTK apps usually don't have a textctrl next to the picker
 343     #define wxDIRP_DEFAULT_STYLE       (wxDIRP_DIR_MUST_EXIST)
 344 #else
 345     #define wxDIRP_DEFAULT_STYLE       (wxDIRP_USE_TEXTCTRL|wxDIRP_DIR_MUST_EXIST)
 346 #endif
 347
 348 class WXDLLIMPEXP_CORE wxDirPickerCtrl : public wxFileDirPickerCtrlBase
 349 {
 350 public:
 351     wxDirPickerCtrl() {}
 352
 353     wxDirPickerCtrl(wxWindow *parent, wxWindowID id,
 354                     const wxString& path = wxEmptyString,
 355                     const wxString& message = wxDirSelectorPromptStr,
 356                     const wxPoint& pos = wxDefaultPosition,
 357                     const wxSize& size = wxDefaultSize,
 358                     long style = wxDIRP_DEFAULT_STYLE,
 359                     const wxValidator& validator = wxDefaultValidator,
 360                     const wxString& name = wxDirPickerCtrlNameStr)
 361     {
 362         Create(parent, id, path, message, pos, size, style, validator, name);
 363     }
 364
 365     bool Create(wxWindow *parent, wxWindowID id,
 366                 const wxString& path = wxEmptyString,
 367                 const wxString& message = wxDirSelectorPromptStr,
 368                 const wxPoint& pos = wxDefaultPosition,
 369                 const wxSize& size = wxDefaultSize,
 370                 long style = wxDIRP_DEFAULT_STYLE,
 371                 const wxValidator& validator = wxDefaultValidator,
 372                 const wxString& name = wxDirPickerCtrlNameStr);
 373
 374     void SetDirName(const wxFileName &dirname)
 375         { SetPath(dirname.GetPath()); }
 376
 377     wxFileName GetDirName() const
 378         { return wxFileName::DirName(GetPath()); }
 379
 380 public:     // overrides
 381
 382     bool CheckPath(const wxString &path) const;
 383
 384     wxString GetTextCtrlValue() const;
 385
 386     bool IsCwdToUpdate() const
 387         { return HasFlag(wxDIRP_CHANGE_DIR); }
 388
 389     wxEventType GetEventType() const
 390         { return wxEVT_COMMAND_DIRPICKER_CHANGED; }
 391
 392     virtual void DoConnect( wxControl *sender, wxFileDirPickerCtrlBase *eventSink )
 393     {
 394         sender->Connect( wxEVT_COMMAND_DIRPICKER_CHANGED,
 395             wxFileDirPickerEventHandler( wxFileDirPickerCtrlBase::OnFileDirChange ),
 396             NULL, eventSink );
 397     }
 398
 399
 400 protected:
 401     virtual
 402     wxFileDirPickerWidgetBase *CreatePicker(wxWindow *parent,
 403                                             const wxString& path,
 404                                             const wxString& message,
 405                                             const wxString& WXUNUSED(wildcard))
 406     {
 407         return new wxDirPickerWidget(parent, wxID_ANY,
 408                                      wxGetTranslation(wxDirPickerWidgetLabel),
 409                                      path, message,
 410                                      wxDefaultPosition, wxDefaultSize,
 411                                      GetPickerStyle(GetWindowStyle()));
 412     }
 413
 414     // extracts the style for our picker from wxFileDirPickerCtrlBase's style
 415     long GetPickerStyle(long style) const
 416     {
 417         return style & (wxDIRP_DIR_MUST_EXIST |
 418                         wxDIRP_CHANGE_DIR |
 419                         wxDIRP_USE_TEXTCTRL |
 420                         wxDIRP_SMALL);
 421     }
 422
 423 private:
 424     DECLARE_DYNAMIC_CLASS(wxDirPickerCtrl)
 425 };
 426
 427 #endif      // wxUSE_DIRPICKERCTRL
 428
 429 #endif // _WX_FILEDIRPICKER_H_BASE_
 430