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     wxString GetPath() const { return m_path; }
  91     virtual void SetPath(const wxString &str) { m_path=str; }
  92
  93     // returns the picker widget cast to wxControl
  94     virtual wxControl *AsControl() = 0;
  95
  96 protected:
  97     virtual void UpdateDialogPath(wxDialog *) = 0;
  98     virtual void UpdatePathFromDialog(wxDialog *) = 0;
  99
 100     wxString m_path;
 101 };
 102
 103 // Styles which must be supported by all controls implementing wxFileDirPickerWidgetBase
 104 // NB: these styles must be defined to carefully-chosen values to
 105 //     avoid conflicts with wxButton's styles
 106
 107 #define wxFLP_OPEN                    0x0400
 108 #define wxFLP_SAVE                    0x0800
 109 #define wxFLP_OVERWRITE_PROMPT        0x1000
 110 #define wxFLP_FILE_MUST_EXIST         0x2000
 111 #define wxFLP_CHANGE_DIR              0x4000
 112
 113 // NOTE: wxMULTIPLE is not supported !
 114
 115
 116 #define wxDIRP_DIR_MUST_EXIST         0x0008
 117 #define wxDIRP_CHANGE_DIR             0x0010
 118
 119
 120 // map platform-dependent controls which implement the wxFileDirPickerWidgetBase
 121 // under the name "wxFilePickerWidget" and "wxDirPickerWidget".
 122 // NOTE: wxFileDirPickerCtrlBase will allocate a wx{File|Dir}PickerWidget and this
 123 //       requires that all classes being mapped as wx{File|Dir}PickerWidget have the
 124 //       same prototype for the contructor...
 125 // since GTK >= 2.6, there is GtkFileButton
 126 #if defined(__WXGTK26__) && !defined(__WXUNIVERSAL__)
 127     #include "wx/gtk/filepicker.h"
 128     #define wxFilePickerWidget      wxFileButton
 129     #define wxDirPickerWidget       wxDirButton
 130 #else
 131     #include "wx/generic/filepickerg.h"
 132     #define wxFilePickerWidget      wxGenericFileButton
 133     #define wxDirPickerWidget       wxGenericDirButton
 134 #endif
 135
 136
 137
 138 // ----------------------------------------------------------------------------
 139 // wxFileDirPickerCtrlBase
 140 // ----------------------------------------------------------------------------
 141
 142 class WXDLLIMPEXP_CORE wxFileDirPickerCtrlBase : public wxPickerBase
 143 {
 144 public:
 145     wxFileDirPickerCtrlBase() : m_bIgnoreNextTextCtrlUpdate(false) {}
 146
 147 protected:
 148     // NB: no default values since this function will never be used
 149     //     directly by the user and derived classes wouldn't use them
 150     bool CreateBase(wxWindow *parent,
 151                     wxWindowID id,
 152                     const wxString& path,
 153                     const wxString &message,
 154                     const wxString &wildcard,
 155                     const wxPoint& pos,
 156                     const wxSize& size,
 157                     long style,
 158                     const wxValidator& validator,
 159                     const wxString& name);
 160
 161 public:         // public API
 162
 163     wxString GetPath() const;
 164     void SetPath(const wxString &str);
 165
 166 public:        // internal functions
 167
 168     void UpdatePickerFromTextCtrl();
 169     void UpdateTextCtrlFromPicker();
 170
 171     // event handler for our picker
 172     void OnFileDirChange(wxFileDirPickerEvent &);
 173
 174     // Returns TRUE if the current path is a valid one
 175     // (i.e. a valid file for a wxFilePickerWidget or a valid
 176     //  folder for a wxDirPickerWidget).
 177     virtual bool CheckPath(const wxString &str) const = 0;
 178
 179     // TRUE if any textctrl change should update the current working directory
 180     virtual bool IsCwdToUpdate() const = 0;
 181
 182     // Returns the event type sent by this picker
 183     virtual wxEventType GetEventType() const = 0;
 184
 185     virtual void DoConnect( wxControl *sender, wxFileDirPickerCtrlBase *eventSink ) = 0;
 186
 187     // Returns the filtered value currently placed in the text control (if present).
 188     virtual wxString GetTextCtrlValue() const = 0;
 189
 190 protected:
 191     // creates the picker control
 192     virtual
 193     wxFileDirPickerWidgetBase *CreatePicker(wxWindow *parent,
 194                                             const wxString& path,
 195                                             const wxString& message,
 196                                             const wxString& wildcard) = 0;
 197
 198 protected:
 199
 200     // true if the next UpdateTextCtrl() call is to ignore
 201     bool m_bIgnoreNextTextCtrlUpdate;
 202
 203     // m_picker object as wxFileDirPickerWidgetBase interface
 204     wxFileDirPickerWidgetBase *m_pickerIface;
 205 };
 206
 207 #endif  // wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
 208
 209
 210 #if wxUSE_FILEPICKERCTRL
 211
 212 // ----------------------------------------------------------------------------
 213 // wxFilePickerCtrl: platform-independent class which embeds the
 214 // platform-dependent wxFilePickerWidget and, if wxFLP_USE_TEXTCTRL style is
 215 // used, a textctrl next to it.
 216 // ----------------------------------------------------------------------------
 217
 218 #define wxFLP_USE_TEXTCTRL            (wxPB_USE_TEXTCTRL)
 219
 220 #ifdef __WXGTK__
 221     // GTK apps usually don't have a textctrl next to the picker
 222     #define wxFLP_DEFAULT_STYLE       (wxFLP_OPEN|wxFLP_FILE_MUST_EXIST)
 223 #else
 224     #define wxFLP_DEFAULT_STYLE       (wxFLP_USE_TEXTCTRL|wxFLP_OPEN|wxFLP_FILE_MUST_EXIST)
 225 #endif
 226
 227 class WXDLLIMPEXP_CORE wxFilePickerCtrl : public wxFileDirPickerCtrlBase
 228 {
 229 public:
 230     wxFilePickerCtrl() {}
 231
 232     wxFilePickerCtrl(wxWindow *parent,
 233                      wxWindowID id,
 234                      const wxString& path = wxEmptyString,
 235                      const wxString& message = wxFileSelectorPromptStr,
 236                      const wxString& wildcard = wxFileSelectorDefaultWildcardStr,
 237                      const wxPoint& pos = wxDefaultPosition,
 238                      const wxSize& size = wxDefaultSize,
 239                      long style = wxFLP_DEFAULT_STYLE,
 240                      const wxValidator& validator = wxDefaultValidator,
 241                      const wxString& name = wxFilePickerCtrlNameStr)
 242     {
 243         Create(parent, id, path, message, wildcard, pos, size, style,
 244                validator, name);
 245     }
 246
 247     bool Create(wxWindow *parent,
 248                 wxWindowID id,
 249                 const wxString& path = wxEmptyString,
 250                 const wxString& message = wxFileSelectorPromptStr,
 251                 const wxString& wildcard = wxFileSelectorDefaultWildcardStr,
 252                 const wxPoint& pos = wxDefaultPosition,
 253                 const wxSize& size = wxDefaultSize,
 254                 long style = wxFLP_DEFAULT_STYLE,
 255                 const wxValidator& validator = wxDefaultValidator,
 256                 const wxString& name = wxFilePickerCtrlNameStr)
 257     {
 258         return wxFileDirPickerCtrlBase::CreateBase(parent, id, path,
 259                                                    message, wildcard,
 260                                                    pos, size, style,
 261                                                    validator, name);
 262     }
 263
 264     void SetFileName(const wxFileName &filename)
 265         { SetPath(filename.GetFullPath()); }
 266
 267     wxFileName GetFileName() const
 268         { return wxFileName(GetPath()); }
 269
 270 public:     // overrides
 271
 272     // return true if the given path is valid for this control
 273     bool CheckPath(const wxString& path) const;
 274
 275     // return the text control value in canonical form
 276     wxString GetTextCtrlValue() const;
 277
 278     bool IsCwdToUpdate() const
 279         { return HasFlag(wxFLP_CHANGE_DIR); }
 280
 281     wxEventType GetEventType() const
 282         { return wxEVT_COMMAND_FILEPICKER_CHANGED; }
 283
 284     virtual void DoConnect( wxControl *sender, wxFileDirPickerCtrlBase *eventSink )
 285     {
 286         sender->Connect( wxEVT_COMMAND_FILEPICKER_CHANGED,
 287             wxFileDirPickerEventHandler( wxFileDirPickerCtrlBase::OnFileDirChange ),
 288             NULL, eventSink );
 289     }
 290
 291
 292 protected:
 293     virtual
 294     wxFileDirPickerWidgetBase *CreatePicker(wxWindow *parent,
 295                                             const wxString& path,
 296                                             const wxString& message,
 297                                             const wxString& wildcard)
 298     {
 299         return new wxFilePickerWidget(parent, wxID_ANY,
 300                                       wxGetTranslation(wxFilePickerWidgetLabel),
 301                                       path, message, wildcard,
 302                                       wxDefaultPosition, wxDefaultSize,
 303                                       GetPickerStyle(GetWindowStyle()));
 304     }
 305
 306     // extracts the style for our picker from wxFileDirPickerCtrlBase's style
 307     long GetPickerStyle(long style) const
 308     {
 309         return (style & (wxFLP_OPEN|wxFLP_SAVE|wxFLP_OVERWRITE_PROMPT|
 310                             wxFLP_FILE_MUST_EXIST|wxFLP_CHANGE_DIR));
 311     }
 312
 313 private:
 314     DECLARE_DYNAMIC_CLASS(wxFilePickerCtrl)
 315 };
 316
 317 #endif      // wxUSE_FILEPICKERCTRL
 318
 319
 320 #if wxUSE_DIRPICKERCTRL
 321
 322 // ----------------------------------------------------------------------------
 323 // wxDirPickerCtrl: platform-independent class which embeds the
 324 // platform-dependent wxDirPickerWidget and eventually a textctrl
 325 // (see wxDIRP_USE_TEXTCTRL) next to it.
 326 // ----------------------------------------------------------------------------
 327
 328 #define wxDIRP_USE_TEXTCTRL            (wxPB_USE_TEXTCTRL)
 329
 330 #ifdef __WXGTK__
 331     // GTK apps usually don't have a textctrl next to the picker
 332     #define wxDIRP_DEFAULT_STYLE       (wxDIRP_DIR_MUST_EXIST)
 333 #else
 334     #define wxDIRP_DEFAULT_STYLE       (wxDIRP_USE_TEXTCTRL|wxDIRP_DIR_MUST_EXIST)
 335 #endif
 336
 337 class WXDLLIMPEXP_CORE wxDirPickerCtrl : public wxFileDirPickerCtrlBase
 338 {
 339 public:
 340     wxDirPickerCtrl() {}
 341
 342     wxDirPickerCtrl(wxWindow *parent, wxWindowID id,
 343                     const wxString& path = wxEmptyString,
 344                     const wxString& message = wxDirSelectorPromptStr,
 345                     const wxPoint& pos = wxDefaultPosition,
 346                     const wxSize& size = wxDefaultSize,
 347                     long style = wxDIRP_DEFAULT_STYLE,
 348                     const wxValidator& validator = wxDefaultValidator,
 349                     const wxString& name = wxDirPickerCtrlNameStr)
 350     {
 351         Create(parent, id, path, message, pos, size, style, validator, name);
 352     }
 353
 354     bool Create(wxWindow *parent, wxWindowID id,
 355                 const wxString& path = wxEmptyString,
 356                 const wxString& message = wxDirSelectorPromptStr,
 357                 const wxPoint& pos = wxDefaultPosition,
 358                 const wxSize& size = wxDefaultSize,
 359                 long style = wxDIRP_DEFAULT_STYLE,
 360                 const wxValidator& validator = wxDefaultValidator,
 361                 const wxString& name = wxDirPickerCtrlNameStr)
 362     {
 363         return wxFileDirPickerCtrlBase::CreateBase
 364                (
 365                     parent, id, path, message, wxEmptyString,
 366                     pos, size, style, validator, name
 367                );
 368     }
 369
 370     void SetDirName(const wxFileName &dirname)
 371         { SetPath(dirname.GetPath()); }
 372
 373     wxFileName GetDirName() const
 374         { return wxFileName::DirName(GetPath()); }
 375
 376 public:     // overrides
 377
 378     bool CheckPath(const wxString &path) const;
 379
 380     wxString GetTextCtrlValue() const;
 381
 382     bool IsCwdToUpdate() const
 383         { return HasFlag(wxDIRP_CHANGE_DIR); }
 384
 385     wxEventType GetEventType() const
 386         { return wxEVT_COMMAND_DIRPICKER_CHANGED; }
 387
 388     virtual void DoConnect( wxControl *sender, wxFileDirPickerCtrlBase *eventSink )
 389     {
 390         sender->Connect( wxEVT_COMMAND_DIRPICKER_CHANGED,
 391             wxFileDirPickerEventHandler( wxFileDirPickerCtrlBase::OnFileDirChange ),
 392             NULL, eventSink );
 393     }
 394
 395
 396 protected:
 397     virtual
 398     wxFileDirPickerWidgetBase *CreatePicker(wxWindow *parent,
 399                                             const wxString& path,
 400                                             const wxString& message,
 401                                             const wxString& WXUNUSED(wildcard))
 402     {
 403         return new wxDirPickerWidget(parent, wxID_ANY,
 404                                      wxGetTranslation(wxDirPickerWidgetLabel),
 405                                      path, message,
 406                                      wxDefaultPosition, wxDefaultSize,
 407                                      GetPickerStyle(GetWindowStyle()));
 408     }
 409
 410     // extracts the style for our picker from wxFileDirPickerCtrlBase's style
 411     long GetPickerStyle(long style) const
 412         { return (style & (wxDIRP_DIR_MUST_EXIST|wxDIRP_CHANGE_DIR)); }
 413
 414 private:
 415     DECLARE_DYNAMIC_CLASS(wxDirPickerCtrl)
 416 };
 417
 418 #endif      // wxUSE_DIRPICKERCTRL
 419
 420 #endif // _WX_FILEDIRPICKER_H_BASE_
 421