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
  21 class WXDLLIMPEXP_CORE wxDialog;
  22 class WXDLLIMPEXP_CORE wxFileDirPickerEvent;
  23
  24 extern WXDLLEXPORT_DATA(const wxChar) wxFilePickerWidgetLabel[];
  25 extern WXDLLEXPORT_DATA(const wxChar) wxFilePickerWidgetNameStr[];
  26 extern WXDLLEXPORT_DATA(const wxChar) wxFilePickerCtrlNameStr[];
  27 extern WXDLLEXPORT_DATA(const wxChar) wxFileSelectorPromptStr[];
  28
  29 extern WXDLLEXPORT_DATA(const wxChar) wxDirPickerWidgetLabel[];
  30 extern WXDLLEXPORT_DATA(const wxChar) wxDirPickerWidgetNameStr[];
  31 extern WXDLLEXPORT_DATA(const wxChar) wxDirPickerCtrlNameStr[];
  32 extern WXDLLEXPORT_DATA(const wxChar) wxDirSelectorPromptStr[];
  33
  34
  35 // ----------------------------------------------------------------------------
  36 // wxFileDirPickerWidgetBase: a generic abstract interface which must be
  37 //                           implemented by controls used by wxFileDirPickerCtrlBase
  38 // ----------------------------------------------------------------------------
  39
  40 class WXDLLIMPEXP_CORE wxFileDirPickerWidgetBase
  41 {
  42 public:
  43     wxFileDirPickerWidgetBase() {  }
  44     virtual ~wxFileDirPickerWidgetBase() {  }
  45
  46     wxString GetPath() const { return m_path; }
  47     virtual void SetPath(const wxString &str) { m_path=str; }
  48
  49     // returns the picker widget cast to wxControl
  50     virtual wxControl *AsControl() = 0;
  51
  52 protected:
  53     virtual void UpdateDialogPath(wxDialog *) = 0;
  54     virtual void UpdatePathFromDialog(wxDialog *) = 0;
  55
  56     wxString m_path;
  57 };
  58
  59 // Styles which must be supported by all controls implementing wxFileDirPickerWidgetBase
  60 // NB: these styles must be defined to carefully-chosen values to
  61 //     avoid conflicts with wxButton's styles
  62
  63 #define wxFLP_OPEN                    0x0400
  64 #define wxFLP_SAVE                    0x0800
  65 #define wxFLP_OVERWRITE_PROMPT        0x1000
  66 #define wxFLP_FILE_MUST_EXIST         0x2000
  67 #define wxFLP_CHANGE_DIR              0x4000
  68
  69 // NOTE: wxMULTIPLE is not supported !
  70
  71
  72 #define wxDIRP_DIR_MUST_EXIST         0x0008
  73 #define wxDIRP_CHANGE_DIR             0x0010
  74
  75
  76 // map platform-dependent controls which implement the wxFileDirPickerWidgetBase
  77 // under the name "wxFilePickerWidget" and "wxDirPickerWidget".
  78 // NOTE: wxFileDirPickerCtrlBase will allocate a wx{File|Dir}PickerWidget and this
  79 //       requires that all classes being mapped as wx{File|Dir}PickerWidget have the
  80 //       same prototype for the contructor...
  81 // since GTK >= 2.6, there is GtkFileButton
  82 #if defined(__WXGTK26__) && !defined(__WXUNIVERSAL__)
  83     #include "wx/gtk/filepicker.h"
  84     #define wxFilePickerWidget      wxFileButton
  85     #define wxDirPickerWidget       wxDirButton
  86 #else
  87     #include "wx/generic/filepickerg.h"
  88     #define wxFilePickerWidget      wxGenericFileButton
  89     #define wxDirPickerWidget       wxGenericDirButton
  90 #endif
  91
  92
  93
  94 // ----------------------------------------------------------------------------
  95 // wxFileDirPickerCtrlBase
  96 // ----------------------------------------------------------------------------
  97
  98 class WXDLLIMPEXP_CORE wxFileDirPickerCtrlBase : public wxPickerBase
  99 {
 100 public:
 101     wxFileDirPickerCtrlBase() : m_bIgnoreNextTextCtrlUpdate(false) {}
 102
 103 protected:
 104     // NB: no default values since this function will never be used
 105     //     directly by the user and derived classes wouldn't use them
 106     bool CreateBase(wxWindow *parent,
 107                     wxWindowID id,
 108                     const wxString& path,
 109                     const wxString &message,
 110                     const wxString &wildcard,
 111                     const wxPoint& pos,
 112                     const wxSize& size,
 113                     long style,
 114                     const wxValidator& validator,
 115                     const wxString& name);
 116
 117 public:         // public API
 118
 119     wxString GetPath() const;
 120     void SetPath(const wxString &str);
 121
 122 public:        // internal functions
 123
 124     void UpdatePickerFromTextCtrl();
 125     void UpdateTextCtrlFromPicker();
 126
 127     // event handler for our picker
 128     void OnFileDirChange(wxFileDirPickerEvent &);
 129
 130     // Returns TRUE if the current path is a valid one
 131     // (i.e. a valid file for a wxFilePickerWidget or a valid
 132     //  folder for a wxDirPickerWidget).
 133     virtual bool CheckPath(const wxString &str) const = 0;
 134
 135     // TRUE if any textctrl change should update the current working directory
 136     virtual bool IsCwdToUpdate() const = 0;
 137
 138     // Returns the event type sent by this picker
 139     virtual wxEventType GetEventType() const = 0;
 140
 141     // Returns the filtered value currently placed in the text control (if present).
 142     virtual wxString GetTextCtrlValue() const = 0;
 143
 144 protected:
 145     // creates the picker control
 146     virtual
 147     wxFileDirPickerWidgetBase *CreatePicker(wxWindow *parent,
 148                                             const wxString& path,
 149                                             const wxString& message,
 150                                             const wxString& wildcard) = 0;
 151
 152 protected:
 153
 154     // true if the next UpdateTextCtrl() call is to ignore
 155     bool m_bIgnoreNextTextCtrlUpdate;
 156
 157     // m_picker object as wxFileDirPickerWidgetBase interface
 158     wxFileDirPickerWidgetBase *m_pickerIface;
 159 };
 160
 161 #endif  // wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
 162
 163
 164 #if wxUSE_FILEPICKERCTRL
 165
 166 // ----------------------------------------------------------------------------
 167 // wxFilePickerCtrl: platform-independent class which embeds the
 168 // platform-dependent wxFilePickerWidget and, if wxFLP_USE_TEXTCTRL style is
 169 // used, a textctrl next to it.
 170 // ----------------------------------------------------------------------------
 171
 172 #define wxFLP_USE_TEXTCTRL            (wxPB_USE_TEXTCTRL)
 173
 174 #ifdef __WXGTK__
 175     // GTK apps usually don't have a textctrl next to the picker
 176     #define wxFLP_DEFAULT_STYLE       (wxFLP_OPEN|wxFLP_FILE_MUST_EXIST)
 177 #else
 178     #define wxFLP_DEFAULT_STYLE       (wxFLP_USE_TEXTCTRL|wxFLP_OPEN|wxFLP_FILE_MUST_EXIST)
 179 #endif
 180
 181 class WXDLLIMPEXP_CORE wxFilePickerCtrl : public wxFileDirPickerCtrlBase
 182 {
 183 public:
 184     wxFilePickerCtrl() {}
 185
 186     wxFilePickerCtrl(wxWindow *parent,
 187                      wxWindowID id,
 188                      const wxString& path = wxEmptyString,
 189                      const wxString& message = wxFileSelectorPromptStr,
 190                      const wxString& wildcard = wxFileSelectorDefaultWildcardStr,
 191                      const wxPoint& pos = wxDefaultPosition,
 192                      const wxSize& size = wxDefaultSize,
 193                      long style = wxFLP_DEFAULT_STYLE,
 194                      const wxValidator& validator = wxDefaultValidator,
 195                      const wxString& name = wxFilePickerCtrlNameStr)
 196     {
 197         Create(parent, id, path, message, wildcard, pos, size, style,
 198                validator, name);
 199     }
 200
 201     bool Create(wxWindow *parent,
 202                 wxWindowID id,
 203                 const wxString& path = wxEmptyString,
 204                 const wxString& message = wxFileSelectorPromptStr,
 205                 const wxString& wildcard = wxFileSelectorDefaultWildcardStr,
 206                 const wxPoint& pos = wxDefaultPosition,
 207                 const wxSize& size = wxDefaultSize,
 208                 long style = wxFLP_DEFAULT_STYLE,
 209                 const wxValidator& validator = wxDefaultValidator,
 210                 const wxString& name = wxFilePickerCtrlNameStr)
 211     {
 212         return wxFileDirPickerCtrlBase::CreateBase(parent, id, path,
 213                                                    message, wildcard,
 214                                                    pos, size, style,
 215                                                    validator, name);
 216     }
 217
 218
 219 public:     // overrides
 220
 221     // return true if the given path is valid for this control
 222     bool CheckPath(const wxString& path) const;
 223
 224     // return the text control value in canonical form
 225     wxString GetTextCtrlValue() const;
 226
 227     bool IsCwdToUpdate() const
 228         { return HasFlag(wxFLP_CHANGE_DIR); }
 229
 230     wxEventType GetEventType() const
 231         { return wxEVT_COMMAND_FILEPICKER_CHANGED; }
 232
 233 protected:
 234     wxFileDirPickerWidgetBase *CreatePicker(wxWindow *parent,
 235                                             const wxString& path,
 236                                             const wxString& message,
 237                                             const wxString& wildcard)
 238     {
 239         return new wxFilePickerWidget(parent, wxID_ANY,
 240                                       wxFilePickerWidgetLabel,
 241                                       path, message, wildcard,
 242                                       wxDefaultPosition, wxDefaultSize,
 243                                       GetPickerStyle(GetWindowStyle()));
 244     }
 245
 246     // extracts the style for our picker from wxFileDirPickerCtrlBase's style
 247     long GetPickerStyle(long style) const
 248     {
 249         return (style & (wxFLP_OPEN|wxFLP_SAVE|wxFLP_OVERWRITE_PROMPT|
 250                             wxFLP_FILE_MUST_EXIST|wxFLP_CHANGE_DIR));
 251     }
 252
 253 private:
 254     DECLARE_DYNAMIC_CLASS(wxFilePickerCtrl)
 255 };
 256
 257 #endif      // wxUSE_FILEPICKERCTRL
 258
 259
 260 #if wxUSE_DIRPICKERCTRL
 261
 262 // ----------------------------------------------------------------------------
 263 // wxDirPickerCtrl: platform-independent class which embeds the
 264 // platform-dependent wxDirPickerWidget and eventually a textctrl
 265 // (see wxDIRP_USE_TEXTCTRL) next to it.
 266 // ----------------------------------------------------------------------------
 267
 268 #define wxDIRP_USE_TEXTCTRL            (wxPB_USE_TEXTCTRL)
 269
 270 #ifdef __WXGTK__
 271     // GTK apps usually don't have a textctrl next to the picker
 272     #define wxDIRP_DEFAULT_STYLE       (wxDIRP_DIR_MUST_EXIST)
 273 #else
 274     #define wxDIRP_DEFAULT_STYLE       (wxDIRP_USE_TEXTCTRL|wxDIRP_DIR_MUST_EXIST)
 275 #endif
 276
 277 class WXDLLIMPEXP_CORE wxDirPickerCtrl : public wxFileDirPickerCtrlBase
 278 {
 279 public:
 280     wxDirPickerCtrl() {}
 281
 282     wxDirPickerCtrl(wxWindow *parent, wxWindowID id,
 283                     const wxString& path = wxEmptyString,
 284                     const wxString& message = wxDirSelectorPromptStr,
 285                     const wxPoint& pos = wxDefaultPosition,
 286                     const wxSize& size = wxDefaultSize,
 287                     long style = wxDIRP_DEFAULT_STYLE,
 288                     const wxValidator& validator = wxDefaultValidator,
 289                     const wxString& name = wxDirPickerCtrlNameStr)
 290     {
 291         Create(parent, id, path, message, pos, size, style, validator, name);
 292     }
 293
 294     bool Create(wxWindow *parent, wxWindowID id,
 295                 const wxString& path = wxEmptyString,
 296                 const wxString& message = wxDirSelectorPromptStr,
 297                 const wxPoint& pos = wxDefaultPosition,
 298                 const wxSize& size = wxDefaultSize,
 299                 long style = wxDIRP_DEFAULT_STYLE,
 300                 const wxValidator& validator = wxDefaultValidator,
 301                 const wxString& name = wxDirPickerCtrlNameStr)
 302     {
 303         return wxFileDirPickerCtrlBase::CreateBase
 304                (
 305                     parent, id, path, message, wxEmptyString,
 306                     pos, size, style, validator, name
 307                );
 308     }
 309
 310
 311 public:     // overrides
 312
 313     bool CheckPath(const wxString &path) const;
 314
 315     wxString GetTextCtrlValue() const;
 316
 317     bool IsCwdToUpdate() const
 318         { return HasFlag(wxDIRP_CHANGE_DIR); }
 319
 320     wxEventType GetEventType() const
 321         { return wxEVT_COMMAND_DIRPICKER_CHANGED; }
 322
 323 protected:
 324     wxFileDirPickerWidgetBase *CreatePicker(wxWindow *parent,
 325                                             const wxString& path,
 326                                             const wxString& message,
 327                                             const wxString& WXUNUSED(wildcard))
 328     {
 329         return new wxDirPickerWidget(parent, wxID_ANY, wxDirPickerWidgetLabel,
 330                                      path, message,
 331                                      wxDefaultPosition, wxDefaultSize,
 332                                      GetPickerStyle(GetWindowStyle()));
 333     }
 334
 335     // extracts the style for our picker from wxFileDirPickerCtrlBase's style
 336     long GetPickerStyle(long style) const
 337         { return (style & (wxDIRP_DIR_MUST_EXIST|wxDIRP_CHANGE_DIR)); }
 338
 339 private:
 340     DECLARE_DYNAMIC_CLASS(wxDirPickerCtrl)
 341 };
 342
 343 #endif      // wxUSE_DIRPICKERCTRL
 344
 345
 346 #if wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
 347
 348 // ----------------------------------------------------------------------------
 349 // wxFileDirPickerEvent: used by wxFilePickerCtrl and wxDirPickerCtrl only
 350 // ----------------------------------------------------------------------------
 351
 352 BEGIN_DECLARE_EVENT_TYPES()
 353     DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_CORE, wxEVT_COMMAND_FILEPICKER_CHANGED, 1102)
 354     DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_CORE, wxEVT_COMMAND_DIRPICKER_CHANGED, 1103)
 355 END_DECLARE_EVENT_TYPES()
 356
 357 class WXDLLIMPEXP_CORE wxFileDirPickerEvent : public wxCommandEvent
 358 {
 359 public:
 360     wxFileDirPickerEvent() {}
 361     wxFileDirPickerEvent(wxEventType type, wxObject *generator, int id, const wxString &path)
 362         : wxCommandEvent(type, id),
 363           m_path(path)
 364     {
 365         SetEventObject(generator);
 366     }
 367
 368     wxString GetPath() const { return m_path; }
 369     void SetPath(const wxString &p) { m_path = p; }
 370
 371     // default copy ctor, assignment operator and dtor are ok
 372     virtual wxEvent *Clone() const { return new wxFileDirPickerEvent(*this); }
 373
 374 private:
 375     wxString m_path;
 376
 377     DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxFileDirPickerEvent)
 378 };
 379
 380 // ----------------------------------------------------------------------------
 381 // event types and macros
 382 // ----------------------------------------------------------------------------
 383
 384 typedef void (wxEvtHandler::*wxFileDirPickerEventFunction)(wxFileDirPickerEvent&);
 385
 386 #define wxFileDirPickerEventHandler(func) \
 387     (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxFileDirPickerEventFunction, &func)
 388
 389 #define EVT_FILEPICKER_CHANGED(id, fn) \
 390     wx__DECLARE_EVT1(wxEVT_COMMAND_FILEPICKER_CHANGED, id, wxFileDirPickerEventHandler(fn))
 391 #define EVT_DIRPICKER_CHANGED(id, fn) \
 392     wx__DECLARE_EVT1(wxEVT_COMMAND_DIRPICKER_CHANGED, id, wxFileDirPickerEventHandler(fn))
 393
 394
 395 #endif // wxUSE_FILEPICKERCTRL || wxUSE_DIRPICKERCTRL
 396
 397 #endif // _WX_FILEDIRPICKER_H_BASE_
 398