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