samples/widgets/filepicker.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWidgets Widgets Sample
   3 // Name:        filepicker.cpp
   4 // Purpose:     Part of the widgets sample showing wx*PickerCtrl
   5 // Author:      Francesco Montorsi
   6 // Created:     20/6/2006
   7 // Id:          $Id$
   8 // Copyright:   (c) 2006 Francesco Montorsi
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_FILEPICKERCTRL
  28
  29 // for all others, include the necessary headers
  30 #ifndef WX_PRECOMP
  31     #include "wx/app.h"
  32     #include "wx/log.h"
  33     #include "wx/radiobox.h"
  34     #include "wx/textctrl.h"
  35 #endif
  36
  37 #include "wx/artprov.h"
  38 #include "wx/sizer.h"
  39 #include "wx/stattext.h"
  40 #include "wx/checkbox.h"
  41 #include "wx/imaglist.h"
  42
  43 #include "wx/filepicker.h"
  44 #include "widgets.h"
  45
  46 #include "icons/filepicker.xpm"
  47
  48 // ----------------------------------------------------------------------------
  49 // constants
  50 // ----------------------------------------------------------------------------
  51
  52 enum
  53 {
  54     FilePickerMode_Open = 0,
  55     FilePickerMode_Save
  56 };
  57
  58 // control ids
  59 enum
  60 {
  61     PickerPage_Reset = wxID_HIGHEST,
  62     PickerPage_File,
  63     PickerPage_SetDir,
  64     PickerPage_CurrentPath
  65 };
  66
  67
  68 // ----------------------------------------------------------------------------
  69 // FilePickerWidgetsPage
  70 // ----------------------------------------------------------------------------
  71
  72 class FilePickerWidgetsPage : public WidgetsPage
  73 {
  74 public:
  75     FilePickerWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
  76     virtual ~FilePickerWidgetsPage(){};
  77
  78     virtual wxControl *GetWidget() const { return m_filePicker; }
  79     virtual void RecreateWidget() { RecreatePicker(); }
  80
  81     // lazy creation of the content
  82     virtual void CreateContent();
  83
  84 protected:
  85
  86     // called only once at first construction
  87     void CreatePicker();
  88
  89     // called to recreate an existing control
  90     void RecreatePicker();
  91
  92     // restore the checkboxes state to the initial values
  93     void Reset();
  94
  95     // get the initial style for the picker of the given kind
  96     long GetPickerStyle();
  97
  98     // update filepicker radiobox
  99     void UpdateFilePickerMode();
 100
 101     // the pickers and the relative event handlers
 102     void OnFileChange(wxFileDirPickerEvent &ev);
 103     void OnCheckBox(wxCommandEvent &ev);
 104     void OnButtonReset(wxCommandEvent &ev);
 105     void OnButtonSetDir(wxCommandEvent &ev);
 106     void OnUpdatePath(wxUpdateUIEvent &ev);
 107
 108
 109     // the picker
 110     wxFilePickerCtrl *m_filePicker;
 111
 112
 113     // other controls
 114     // --------------
 115
 116     wxCheckBox *m_chkFileTextCtrl,
 117                *m_chkFileOverwritePrompt,
 118                *m_chkFileMustExist,
 119                *m_chkFileChangeDir,
 120                *m_chkSmall;
 121     wxRadioBox *m_radioFilePickerMode;
 122     wxStaticText *m_labelPath;
 123     wxTextCtrl *m_textInitialDir;
 124
 125     wxBoxSizer *m_sizer;
 126
 127 private:
 128     DECLARE_EVENT_TABLE()
 129     DECLARE_WIDGETS_PAGE(FilePickerWidgetsPage)
 130 };
 131
 132 // ----------------------------------------------------------------------------
 133 // event tables
 134 // ----------------------------------------------------------------------------
 135
 136 BEGIN_EVENT_TABLE(FilePickerWidgetsPage, WidgetsPage)
 137     EVT_BUTTON(PickerPage_Reset, FilePickerWidgetsPage::OnButtonReset)
 138     EVT_BUTTON(PickerPage_SetDir, FilePickerWidgetsPage::OnButtonSetDir)
 139
 140     EVT_FILEPICKER_CHANGED(PickerPage_File, FilePickerWidgetsPage::OnFileChange)
 141
 142     EVT_CHECKBOX(wxID_ANY, FilePickerWidgetsPage::OnCheckBox)
 143     EVT_RADIOBOX(wxID_ANY, FilePickerWidgetsPage::OnCheckBox)
 144
 145     EVT_UPDATE_UI(PickerPage_CurrentPath, FilePickerWidgetsPage::OnUpdatePath)
 146 END_EVENT_TABLE()
 147
 148 // ============================================================================
 149 // implementation
 150 // ============================================================================
 151
 152 #if defined(__WXGTK24__)
 153     #define FAMILY_CTRLS NATIVE_CTRLS
 154 #else
 155     #define FAMILY_CTRLS GENERIC_CTRLS
 156 #endif
 157
 158 IMPLEMENT_WIDGETS_PAGE(FilePickerWidgetsPage, wxT("FilePicker"),
 159                        PICKER_CTRLS | FAMILY_CTRLS);
 160
 161 FilePickerWidgetsPage::FilePickerWidgetsPage(WidgetsBookCtrl *book,
 162                                      wxImageList *imaglist)
 163                   : WidgetsPage(book, imaglist, filepicker_xpm)
 164 {
 165 }
 166
 167 void FilePickerWidgetsPage::CreateContent()
 168 {
 169     // left pane
 170     wxSizer *boxleft = new wxBoxSizer(wxVERTICAL);
 171
 172     static const wxString mode[] = { wxT("open"), wxT("save") };
 173     m_radioFilePickerMode = new wxRadioBox(this, wxID_ANY, wxT("wxFilePicker mode"),
 174                                            wxDefaultPosition, wxDefaultSize,
 175                                            WXSIZEOF(mode), mode);
 176     boxleft->Add(m_radioFilePickerMode, 0, wxALL|wxGROW, 5);
 177
 178     wxStaticBoxSizer *filebox = new wxStaticBoxSizer(wxVERTICAL, this, wxT("&FilePicker style"));
 179     m_chkFileTextCtrl = CreateCheckBoxAndAddToSizer(filebox, wxT("With textctrl"), false);
 180     m_chkFileOverwritePrompt = CreateCheckBoxAndAddToSizer(filebox, wxT("Overwrite prompt"), false);
 181     m_chkFileMustExist = CreateCheckBoxAndAddToSizer(filebox, wxT("File must exist"), false);
 182     m_chkFileChangeDir = CreateCheckBoxAndAddToSizer(filebox, wxT("Change working dir"), false);
 183     m_chkSmall = CreateCheckBoxAndAddToSizer(filebox, "&Small version", false);
 184
 185     boxleft->Add(filebox, 0, wxALL|wxGROW, 5);
 186
 187     boxleft->Add(CreateSizerWithTextAndButton
 188                  (
 189                     PickerPage_SetDir,
 190                     "&Initial directory",
 191                     wxID_ANY,
 192                     &m_textInitialDir
 193                  ), wxSizerFlags().Expand().Border());
 194
 195     boxleft->AddSpacer(10);
 196
 197     boxleft->Add(new wxButton(this, PickerPage_Reset, wxT("&Reset")),
 198                  0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 199
 200     Reset();    // set checkboxes state
 201
 202     // create the picker and the static text displaying its current value
 203     m_labelPath = new wxStaticText(this, PickerPage_CurrentPath, "");
 204
 205     m_filePicker = NULL;
 206     CreatePicker();
 207
 208     // right pane
 209     m_sizer = new wxBoxSizer(wxVERTICAL);
 210     m_sizer->AddStretchSpacer();
 211     m_sizer->Add(m_filePicker, wxSizerFlags().Expand().Border());
 212     m_sizer->AddStretchSpacer();
 213     m_sizer->Add(m_labelPath, wxSizerFlags().Expand().Border());
 214     m_sizer->AddStretchSpacer();
 215
 216     // global pane
 217     wxSizer *sz = new wxBoxSizer(wxHORIZONTAL);
 218     sz->Add(boxleft, 0, wxGROW|wxALL, 5);
 219     sz->Add(m_sizer, 1, wxGROW|wxALL, 5);
 220
 221     SetSizer(sz);
 222 }
 223
 224 void FilePickerWidgetsPage::CreatePicker()
 225 {
 226     delete m_filePicker;
 227
 228     // pass an empty string as initial file
 229     m_filePicker = new wxFilePickerCtrl(this, PickerPage_File,
 230                                         wxEmptyString,
 231                                         wxT("Hello!"), wxT("*"),
 232                                         wxDefaultPosition, wxDefaultSize,
 233                                         GetPickerStyle());
 234 }
 235
 236 long FilePickerWidgetsPage::GetPickerStyle()
 237 {
 238     long style = 0;
 239
 240     if ( m_chkFileTextCtrl->GetValue() )
 241         style |= wxFLP_USE_TEXTCTRL;
 242
 243     if ( m_chkFileOverwritePrompt->GetValue() )
 244         style |= wxFLP_OVERWRITE_PROMPT;
 245
 246     if ( m_chkFileMustExist->GetValue() )
 247         style |= wxFLP_FILE_MUST_EXIST;
 248
 249     if ( m_chkFileChangeDir->GetValue() )
 250         style |= wxFLP_CHANGE_DIR;
 251
 252     if ( m_chkSmall->GetValue() )
 253         style |= wxFLP_SMALL;
 254
 255     if (m_radioFilePickerMode->GetSelection() == FilePickerMode_Open)
 256         style |= wxFLP_OPEN;
 257     else
 258         style |= wxFLP_SAVE;
 259
 260     return style;
 261 }
 262
 263 void FilePickerWidgetsPage::RecreatePicker()
 264 {
 265     m_sizer->Remove(1);
 266     CreatePicker();
 267     m_sizer->Insert(1, m_filePicker, 0, wxEXPAND|wxALL, 5);
 268
 269     m_sizer->Layout();
 270 }
 271
 272 void FilePickerWidgetsPage::Reset()
 273 {
 274     m_radioFilePickerMode->SetSelection((wxFLP_DEFAULT_STYLE & wxFLP_OPEN) ?
 275                                             FilePickerMode_Open : FilePickerMode_Save);
 276     m_chkFileTextCtrl->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_USE_TEXTCTRL) != 0);
 277     m_chkFileOverwritePrompt->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_OVERWRITE_PROMPT) != 0);
 278     m_chkFileMustExist->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_FILE_MUST_EXIST) != 0);
 279     m_chkFileChangeDir->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_CHANGE_DIR) != 0);
 280     m_chkSmall->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_SMALL) != 0);
 281
 282     UpdateFilePickerMode();
 283 }
 284
 285 void FilePickerWidgetsPage::UpdateFilePickerMode()
 286 {
 287     switch (m_radioFilePickerMode->GetSelection())
 288     {
 289     case FilePickerMode_Open:
 290         m_chkFileOverwritePrompt->SetValue(false);
 291         m_chkFileOverwritePrompt->Disable();
 292         m_chkFileMustExist->Enable();
 293         break;
 294     case FilePickerMode_Save:
 295         m_chkFileMustExist->SetValue(false);
 296         m_chkFileMustExist->Disable();
 297         m_chkFileOverwritePrompt->Enable();
 298         break;
 299     }
 300 }
 301
 302
 303 // ----------------------------------------------------------------------------
 304 // event handlers
 305 // ----------------------------------------------------------------------------
 306
 307 void FilePickerWidgetsPage::OnButtonSetDir(wxCommandEvent& WXUNUSED(event))
 308 {
 309     const wxString& dir = m_textInitialDir->GetValue();
 310     m_filePicker->SetInitialDirectory(dir);
 311     wxLogMessage("Initial directory set to \"%s\"", dir);
 312 }
 313
 314 void FilePickerWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 315 {
 316     Reset();
 317
 318     RecreatePicker();
 319 }
 320
 321 void FilePickerWidgetsPage::OnFileChange(wxFileDirPickerEvent& event)
 322 {
 323     wxLogMessage(wxT("The file changed to '%s' ! The current working directory is '%s'"),
 324                  event.GetPath().c_str(), wxGetCwd().c_str());
 325 }
 326
 327 void FilePickerWidgetsPage::OnCheckBox(wxCommandEvent &event)
 328 {
 329     if (event.GetEventObject() == m_chkFileTextCtrl ||
 330         event.GetEventObject() == m_chkFileOverwritePrompt ||
 331         event.GetEventObject() == m_chkFileMustExist ||
 332         event.GetEventObject() == m_chkFileChangeDir ||
 333         event.GetEventObject() == m_chkSmall)
 334         RecreatePicker();
 335
 336     if (event.GetEventObject() == m_radioFilePickerMode)
 337     {
 338         UpdateFilePickerMode();
 339         RecreatePicker();
 340     }
 341 }
 342
 343 void FilePickerWidgetsPage::OnUpdatePath(wxUpdateUIEvent& ev)
 344 {
 345     ev.SetText( "Current path: " + m_filePicker->GetPath() );
 346 }
 347
 348 #endif  // wxUSE_FILEPICKERCTRL