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