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 // License:     wxWindows license
  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 #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 };
  63
  64
  65 // ----------------------------------------------------------------------------
  66 // FilePickerWidgetsPage
  67 // ----------------------------------------------------------------------------
  68
  69 class FilePickerWidgetsPage : public WidgetsPage
  70 {
  71 public:
  72     FilePickerWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
  73     virtual ~FilePickerWidgetsPage(){};
  74
  75     virtual wxControl *GetWidget() const { return m_filePicker; }
  76     virtual void RecreateWidget() { RecreatePicker(); }
  77
  78     // lazy creation of the content
  79     virtual void CreateContent();
  80
  81 protected:
  82
  83     // called only once at first construction
  84     void CreatePicker();
  85
  86     // called to recreate an existing control
  87     void RecreatePicker();
  88
  89     // restore the checkboxes state to the initial values
  90     void Reset();
  91
  92     // get the initial style for the picker of the given kind
  93     long GetPickerStyle();
  94
  95     // update filepicker radiobox
  96     void UpdateFilePickerMode();
  97
  98     // the pickers and the relative event handlers
  99     void OnFileChange(wxFileDirPickerEvent &ev);
 100     void OnCheckBox(wxCommandEvent &ev);
 101     void OnButtonReset(wxCommandEvent &ev);
 102
 103
 104     // the picker
 105     wxFilePickerCtrl *m_filePicker;
 106
 107
 108     // other controls
 109     // --------------
 110
 111     wxCheckBox *m_chkFileTextCtrl,
 112                *m_chkFileOverwritePrompt,
 113                *m_chkFileMustExist,
 114                *m_chkFileChangeDir;
 115     wxRadioBox *m_radioFilePickerMode;
 116
 117     wxBoxSizer *m_sizer;
 118
 119 private:
 120     DECLARE_EVENT_TABLE()
 121     DECLARE_WIDGETS_PAGE(FilePickerWidgetsPage)
 122 };
 123
 124 // ----------------------------------------------------------------------------
 125 // event tables
 126 // ----------------------------------------------------------------------------
 127
 128 BEGIN_EVENT_TABLE(FilePickerWidgetsPage, WidgetsPage)
 129     EVT_BUTTON(PickerPage_Reset, FilePickerWidgetsPage::OnButtonReset)
 130
 131     EVT_FILEPICKER_CHANGED(PickerPage_File, FilePickerWidgetsPage::OnFileChange)
 132
 133     EVT_CHECKBOX(wxID_ANY, FilePickerWidgetsPage::OnCheckBox)
 134     EVT_RADIOBOX(wxID_ANY, FilePickerWidgetsPage::OnCheckBox)
 135 END_EVENT_TABLE()
 136
 137 // ============================================================================
 138 // implementation
 139 // ============================================================================
 140
 141 #if defined(__WXGTK24__)
 142     #define FAMILY_CTRLS NATIVE_CTRLS
 143 #else
 144     #define FAMILY_CTRLS GENERIC_CTRLS
 145 #endif
 146
 147 IMPLEMENT_WIDGETS_PAGE(FilePickerWidgetsPage, wxT("FilePicker"),
 148                        PICKER_CTRLS | FAMILY_CTRLS);
 149
 150 FilePickerWidgetsPage::FilePickerWidgetsPage(WidgetsBookCtrl *book,
 151                                      wxImageList *imaglist)
 152                   : WidgetsPage(book, imaglist, filepicker_xpm)
 153 {
 154 }
 155
 156 void FilePickerWidgetsPage::CreateContent()
 157 {
 158     // left pane
 159     wxSizer *boxleft = new wxBoxSizer(wxVERTICAL);
 160
 161     static const wxString mode[] = { wxT("open"), wxT("save") };
 162     m_radioFilePickerMode = new wxRadioBox(this, wxID_ANY, wxT("wxFilePicker mode"),
 163                                            wxDefaultPosition, wxDefaultSize,
 164                                            WXSIZEOF(mode), mode);
 165     boxleft->Add(m_radioFilePickerMode, 0, wxALL|wxGROW, 5);
 166
 167     wxStaticBoxSizer *filebox = new wxStaticBoxSizer(wxVERTICAL, this, wxT("&FilePicker style"));
 168     m_chkFileTextCtrl = CreateCheckBoxAndAddToSizer(filebox, wxT("With textctrl"), false);
 169     m_chkFileOverwritePrompt = CreateCheckBoxAndAddToSizer(filebox, wxT("Overwrite prompt"), false);
 170     m_chkFileMustExist = CreateCheckBoxAndAddToSizer(filebox, wxT("File must exist"), false);
 171     m_chkFileChangeDir = CreateCheckBoxAndAddToSizer(filebox, wxT("Change working dir"), false);
 172     boxleft->Add(filebox, 0, wxALL|wxGROW, 5);
 173
 174     boxleft->Add(new wxButton(this, PickerPage_Reset, wxT("&Reset")),
 175                  0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 176
 177     Reset();    // set checkboxes state
 178
 179     // create pickers
 180     m_filePicker = NULL;
 181     CreatePicker();
 182
 183     // right pane
 184     m_sizer = new wxBoxSizer(wxVERTICAL);
 185     m_sizer->Add(1, 1, 1, wxGROW | wxALL, 5); // spacer
 186     m_sizer->Add(m_filePicker, 0, wxALIGN_CENTER|wxALL, 5);
 187     m_sizer->Add(1, 1, 1, wxGROW | wxALL, 5); // spacer
 188
 189     // global pane
 190     wxSizer *sz = new wxBoxSizer(wxHORIZONTAL);
 191     sz->Add(boxleft, 0, wxGROW|wxALL, 5);
 192     sz->Add(m_sizer, 1, wxGROW|wxALL, 5);
 193
 194     SetSizer(sz);
 195 }
 196
 197 void FilePickerWidgetsPage::CreatePicker()
 198 {
 199     delete m_filePicker;
 200
 201     // pass an empty string as initial file
 202     m_filePicker = new wxFilePickerCtrl(this, PickerPage_File,
 203                                         wxEmptyString,
 204                                         wxT("Hello!"), wxT("*"),
 205                                         wxDefaultPosition, wxDefaultSize,
 206                                         GetPickerStyle());
 207 }
 208
 209 long FilePickerWidgetsPage::GetPickerStyle()
 210 {
 211     long style = 0;
 212
 213     if ( m_chkFileTextCtrl->GetValue() )
 214         style |= wxFLP_USE_TEXTCTRL;
 215
 216     if ( m_chkFileOverwritePrompt->GetValue() )
 217         style |= wxFLP_OVERWRITE_PROMPT;
 218
 219     if ( m_chkFileMustExist->GetValue() )
 220         style |= wxFLP_FILE_MUST_EXIST;
 221
 222     if ( m_chkFileChangeDir->GetValue() )
 223         style |= wxFLP_CHANGE_DIR;
 224
 225     if (m_radioFilePickerMode->GetSelection() == FilePickerMode_Open)
 226         style |= wxFLP_OPEN;
 227     else
 228         style |= wxFLP_SAVE;
 229
 230     return style;
 231 }
 232
 233 void FilePickerWidgetsPage::RecreatePicker()
 234 {
 235     m_sizer->Remove(1);
 236     CreatePicker();
 237     m_sizer->Insert(1, m_filePicker, 0, wxALIGN_CENTER||wxALL, 5);
 238
 239     m_sizer->Layout();
 240 }
 241
 242 void FilePickerWidgetsPage::Reset()
 243 {
 244     m_radioFilePickerMode->SetSelection((wxFLP_DEFAULT_STYLE & wxFLP_OPEN) ?
 245                                             FilePickerMode_Open : FilePickerMode_Save);
 246     m_chkFileTextCtrl->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_USE_TEXTCTRL) != 0);
 247     m_chkFileOverwritePrompt->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_OVERWRITE_PROMPT) != 0);
 248     m_chkFileMustExist->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_FILE_MUST_EXIST) != 0);
 249     m_chkFileChangeDir->SetValue((wxFLP_DEFAULT_STYLE & wxFLP_CHANGE_DIR) != 0);
 250
 251     UpdateFilePickerMode();
 252 }
 253
 254 void FilePickerWidgetsPage::UpdateFilePickerMode()
 255 {
 256     switch (m_radioFilePickerMode->GetSelection())
 257     {
 258     case FilePickerMode_Open:
 259         m_chkFileOverwritePrompt->SetValue(false);
 260         m_chkFileOverwritePrompt->Disable();
 261         m_chkFileMustExist->Enable();
 262         break;
 263     case FilePickerMode_Save:
 264         m_chkFileMustExist->SetValue(false);
 265         m_chkFileMustExist->Disable();
 266         m_chkFileOverwritePrompt->Enable();
 267         break;
 268     }
 269 }
 270
 271
 272 // ----------------------------------------------------------------------------
 273 // event handlers
 274 // ----------------------------------------------------------------------------
 275
 276 void FilePickerWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 277 {
 278     Reset();
 279
 280     RecreatePicker();
 281 }
 282
 283 void FilePickerWidgetsPage::OnFileChange(wxFileDirPickerEvent& event)
 284 {
 285     wxLogMessage(wxT("The file changed to '%s' ! The current working directory is '%s'"),
 286                  event.GetPath().c_str(), wxGetCwd().c_str());
 287 }
 288
 289 void FilePickerWidgetsPage::OnCheckBox(wxCommandEvent &event)
 290 {
 291     if (event.GetEventObject() == m_chkFileTextCtrl ||
 292         event.GetEventObject() == m_chkFileOverwritePrompt ||
 293         event.GetEventObject() == m_chkFileMustExist ||
 294         event.GetEventObject() == m_chkFileChangeDir)
 295         RecreatePicker();
 296
 297     if (event.GetEventObject() == m_radioFilePickerMode)
 298     {
 299         UpdateFilePickerMode();
 300         RecreatePicker();
 301     }
 302 }
 303
 304 #endif  // wxUSE_FILEPICKERCTRL