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 };
  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
 106
 107     // the picker
 108     wxFilePickerCtrl *m_filePicker;
 109
 110
 111     // other controls
 112     // --------------
 113
 114     wxCheckBox *m_chkFileTextCtrl,
 115                *m_chkFileOverwritePrompt,
 116                *m_chkFileMustExist,
 117                *m_chkFileChangeDir,
 118                *m_chkSmall;
 119     wxRadioBox *m_radioFilePickerMode;
 120     wxTextCtrl *m_textInitialDir;
 121
 122     wxBoxSizer *m_sizer;
 123
 124 private:
 125     DECLARE_EVENT_TABLE()
 126     DECLARE_WIDGETS_PAGE(FilePickerWidgetsPage)
 127 };
 128
 129 // ----------------------------------------------------------------------------
 130 // event tables
 131 // ----------------------------------------------------------------------------
 132
 133 BEGIN_EVENT_TABLE(FilePickerWidgetsPage, WidgetsPage)
 134     EVT_BUTTON(PickerPage_Reset, FilePickerWidgetsPage::OnButtonReset)
 135     EVT_BUTTON(PickerPage_SetDir, FilePickerWidgetsPage::OnButtonSetDir)
 136
 137     EVT_FILEPICKER_CHANGED(PickerPage_File, FilePickerWidgetsPage::OnFileChange)
 138
 139     EVT_CHECKBOX(wxID_ANY, FilePickerWidgetsPage::OnCheckBox)
 140     EVT_RADIOBOX(wxID_ANY, FilePickerWidgetsPage::OnCheckBox)
 141 END_EVENT_TABLE()
 142
 143 // ============================================================================
 144 // implementation
 145 // ============================================================================
 146
 147 #if defined(__WXGTK24__)
 148     #define FAMILY_CTRLS NATIVE_CTRLS
 149 #else
 150     #define FAMILY_CTRLS GENERIC_CTRLS
 151 #endif
 152
 153 IMPLEMENT_WIDGETS_PAGE(FilePickerWidgetsPage, wxT("FilePicker"),
 154                        PICKER_CTRLS | FAMILY_CTRLS);
 155
 156 FilePickerWidgetsPage::FilePickerWidgetsPage(WidgetsBookCtrl *book,
 157                                      wxImageList *imaglist)
 158                   : WidgetsPage(book, imaglist, filepicker_xpm)
 159 {
 160 }
 161
 162 void FilePickerWidgetsPage::CreateContent()
 163 {
 164     // left pane
 165     wxSizer *boxleft = new wxBoxSizer(wxVERTICAL);
 166
 167     static const wxString mode[] = { wxT("open"), wxT("save") };
 168     m_radioFilePickerMode = new wxRadioBox(this, wxID_ANY, wxT("wxFilePicker mode"),
 169                                            wxDefaultPosition, wxDefaultSize,
 170                                            WXSIZEOF(mode), mode);
 171     boxleft->Add(m_radioFilePickerMode, 0, wxALL|wxGROW, 5);
 172
 173     wxStaticBoxSizer *filebox = new wxStaticBoxSizer(wxVERTICAL, this, wxT("&FilePicker style"));
 174     m_chkFileTextCtrl = CreateCheckBoxAndAddToSizer(filebox, wxT("With textctrl"), false);
 175     m_chkFileOverwritePrompt = CreateCheckBoxAndAddToSizer(filebox, wxT("Overwrite prompt"), false);
 176     m_chkFileMustExist = CreateCheckBoxAndAddToSizer(filebox, wxT("File must exist"), false);
 177     m_chkFileChangeDir = CreateCheckBoxAndAddToSizer(filebox, wxT("Change working dir"), false);
 178     m_chkSmall = CreateCheckBoxAndAddToSizer(filebox, "&Small version", false);
 179
 180     boxleft->Add(filebox, 0, wxALL|wxGROW, 5);
 181
 182     boxleft->Add(CreateSizerWithTextAndButton
 183                  (
 184                     PickerPage_SetDir,
 185                     "&Initial directory",
 186                     wxID_ANY,
 187                     &m_textInitialDir
 188                  ), wxSizerFlags().Expand().Border());
 189
 190     boxleft->AddSpacer(10);
 191
 192     boxleft->Add(new wxButton(this, PickerPage_Reset, wxT("&Reset")),
 193                  0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 194
 195     Reset();    // set checkboxes state
 196
 197     // create pickers
 198     m_filePicker = NULL;
 199     CreatePicker();
 200
 201     // right pane
 202     m_sizer = new wxBoxSizer(wxVERTICAL);
 203     m_sizer->Add(1, 1, 1, wxGROW | wxALL, 5); // spacer
 204     m_sizer->Add(m_filePicker, 0, wxEXPAND|wxALL, 5);
 205     m_sizer->Add(1, 1, 1, wxGROW | wxALL, 5); // spacer
 206
 207     // global pane
 208     wxSizer *sz = new wxBoxSizer(wxHORIZONTAL);
 209     sz->Add(boxleft, 0, wxGROW|wxALL, 5);
 210     sz->Add(m_sizer, 1, wxGROW|wxALL, 5);
 211
 212     SetSizer(sz);
 213 }
 214
 215 void FilePickerWidgetsPage::CreatePicker()
 216 {
 217     delete m_filePicker;
 218
 219     // pass an empty string as initial file
 220     m_filePicker = new wxFilePickerCtrl(this, PickerPage_File,
 221                                         wxEmptyString,
 222                                         wxT("Hello!"), wxT("*"),
 223                                         wxDefaultPosition, wxDefaultSize,
 224                                         GetPickerStyle());
 225 }
 226
 227 long FilePickerWidgetsPage::GetPickerStyle()
 228 {
 229     long style = 0;
 230
 231     if ( m_chkFileTextCtrl->GetValue() )
 232         style |= wxFLP_USE_TEXTCTRL;
 233
 234     if ( m_chkFileOverwritePrompt->GetValue() )
 235         style |= wxFLP_OVERWRITE_PROMPT;
 236
 237     if ( m_chkFileMustExist->GetValue() )
 238         style |= wxFLP_FILE_MUST_EXIST;
 239
 240     if ( m_chkFileChangeDir->GetValue() )
 241         style |= wxFLP_CHANGE_DIR;
 242
 243     if ( m_chkSmall->GetValue() )
 244         style |= wxFLP_SMALL;
 245
 246     if (m_radioFilePickerMode->GetSelection() == FilePickerMode_Open)
 247         style |= wxFLP_OPEN;
 248     else
 249         style |= wxFLP_SAVE;
 250
 251     return style;
 252 }
 253
 254 void FilePickerWidgetsPage::RecreatePicker()
 255 {
 256     m_sizer->Remove(1);
 257     CreatePicker();
 258     m_sizer->Insert(1, m_filePicker, 0, wxEXPAND|wxALL, 5);
 259
 260     m_sizer->Layout();
 261 }
 262
 263 void FilePickerWidgetsPage::Reset()
 264 {
 265     m_radioFilePickerMode->SetSelection((wxFLP_DEFAULT_STYLE & wxFLP_OPEN) ?
 266                                             FilePickerMode_Open : FilePickerMode_Save);
 267     m_chkFileTextCtrl->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_USE_TEXTCTRL) != 0);
 268     m_chkFileOverwritePrompt->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_OVERWRITE_PROMPT) != 0);
 269     m_chkFileMustExist->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_FILE_MUST_EXIST) != 0);
 270     m_chkFileChangeDir->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_CHANGE_DIR) != 0);
 271     m_chkSmall->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_SMALL) != 0);
 272
 273     UpdateFilePickerMode();
 274 }
 275
 276 void FilePickerWidgetsPage::UpdateFilePickerMode()
 277 {
 278     switch (m_radioFilePickerMode->GetSelection())
 279     {
 280     case FilePickerMode_Open:
 281         m_chkFileOverwritePrompt->SetValue(false);
 282         m_chkFileOverwritePrompt->Disable();
 283         m_chkFileMustExist->Enable();
 284         break;
 285     case FilePickerMode_Save:
 286         m_chkFileMustExist->SetValue(false);
 287         m_chkFileMustExist->Disable();
 288         m_chkFileOverwritePrompt->Enable();
 289         break;
 290     }
 291 }
 292
 293
 294 // ----------------------------------------------------------------------------
 295 // event handlers
 296 // ----------------------------------------------------------------------------
 297
 298 void FilePickerWidgetsPage::OnButtonSetDir(wxCommandEvent& WXUNUSED(event))
 299 {
 300     const wxString& dir = m_textInitialDir->GetValue();
 301     m_filePicker->SetInitialDirectory(dir);
 302     wxLogMessage("Initial directory set to \"%s\"", dir);
 303 }
 304
 305 void FilePickerWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 306 {
 307     Reset();
 308
 309     RecreatePicker();
 310 }
 311
 312 void FilePickerWidgetsPage::OnFileChange(wxFileDirPickerEvent& event)
 313 {
 314     wxLogMessage(wxT("The file changed to '%s' ! The current working directory is '%s'"),
 315                  event.GetPath().c_str(), wxGetCwd().c_str());
 316 }
 317
 318 void FilePickerWidgetsPage::OnCheckBox(wxCommandEvent &event)
 319 {
 320     if (event.GetEventObject() == m_chkFileTextCtrl ||
 321         event.GetEventObject() == m_chkFileOverwritePrompt ||
 322         event.GetEventObject() == m_chkFileMustExist ||
 323         event.GetEventObject() == m_chkFileChangeDir ||
 324         event.GetEventObject() == m_chkSmall)
 325         RecreatePicker();
 326
 327     if (event.GetEventObject() == m_radioFilePickerMode)
 328     {
 329         UpdateFilePickerMode();
 330         RecreatePicker();
 331     }
 332 }
 333
 334 #endif  // wxUSE_FILEPICKERCTRL