src/generic/preferencesg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/preferencesg.cpp
   3 // Purpose:     Implementation of wxPreferencesEditor.
   4 // Author:      Vaclav Slavik
   5 // Created:     2013-02-19
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2013 Vaclav Slavik <vslavik@fastmail.fm>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // for compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #include "wx/private/preferences.h"
  27
  28 #ifndef wxHAS_PREF_EDITOR_NATIVE
  29
  30 #include "wx/dialog.h"
  31 #include "wx/notebook.h"
  32 #include "wx/sizer.h"
  33 #include "wx/sharedptr.h"
  34 #include "wx/scopedptr.h"
  35 #include "wx/vector.h"
  36
  37 class wxGenericPrefsDialog : public wxDialog
  38 {
  39 public:
  40     wxGenericPrefsDialog(wxWindow *parent)
  41         : wxDialog(parent, wxID_ANY, _("Preferences"),
  42                    wxDefaultPosition, wxDefaultSize,
  43                    wxDEFAULT_FRAME_STYLE & ~(wxRESIZE_BORDER | wxMAXIMIZE_BOX | wxMINIMIZE_BOX))
  44     {
  45         SetExtraStyle(wxWS_EX_VALIDATE_RECURSIVELY);
  46
  47         wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
  48
  49         m_notebook = new wxNotebook(this, wxID_ANY);
  50         sizer->Add(m_notebook, wxSizerFlags(1).Expand().DoubleBorder());
  51
  52 #ifdef __WXGTK__
  53         SetEscapeId(wxID_CLOSE);
  54         sizer->Add(CreateButtonSizer(wxCLOSE), wxSizerFlags().Expand().DoubleBorder(wxBOTTOM));
  55 #else
  56         sizer->Add(CreateButtonSizer(wxOK | wxCANCEL),
  57                    wxSizerFlags().Expand().DoubleBorder(wxLEFT|wxRIGHT|wxBOTTOM));
  58 #endif
  59         SetSizer(sizer);
  60     }
  61
  62     void AddPage(wxPreferencesPage *page)
  63     {
  64         wxWindow *win = page->CreateWindow(m_notebook);
  65         m_notebook->AddPage(win, page->GetName());
  66     }
  67
  68     int GetSelectedPage() const
  69     {
  70         return m_notebook->GetSelection();
  71     }
  72
  73     void SelectPage(int page)
  74     {
  75         m_notebook->ChangeSelection(page);
  76     }
  77
  78 private:
  79     wxNotebook *m_notebook;
  80 };
  81
  82
  83 class wxGenericPreferencesEditorImplBase : public wxPreferencesEditorImpl
  84 {
  85 public:
  86     virtual void AddPage(wxPreferencesPage* page)
  87     {
  88         m_pages.push_back(wxSharedPtr<wxPreferencesPage>(page));
  89     }
  90
  91 protected:
  92     wxGenericPrefsDialog *CreateDialog(wxWindow *parent)
  93     {
  94         wxGenericPrefsDialog *dlg = new wxGenericPrefsDialog(parent);
  95
  96         // TODO: Don't create all pages immediately like this, do it on demand
  97         //       when a page is selected in the notebook (as is done on OS X).
  98         //
  99         //       Currently, creating all pages is necessary so that the notebook
 100         //       can determine its best size. We'll need to extend
 101         //       wxPreferencesPage with a GetBestSize() virtual method to make
 102         //       it possible to defer the creation.
 103         for ( Pages::const_iterator i = m_pages.begin();
 104               i != m_pages.end();
 105               ++i )
 106         {
 107             dlg->AddPage(i->get());
 108         }
 109
 110         return dlg;
 111     }
 112
 113     typedef wxVector< wxSharedPtr<wxPreferencesPage> > Pages;
 114     Pages m_pages;
 115
 116 };
 117
 118
 119 #ifdef wxHAS_PREF_EDITOR_MODELESS
 120
 121 class wxModelessPreferencesEditorImpl : public wxGenericPreferencesEditorImplBase
 122 {
 123 public:
 124     virtual ~wxModelessPreferencesEditorImpl()
 125     {
 126         // m_win may already be destroyed if this destructor is called from
 127         // wxApp's destructor. In that case, all windows -- including this
 128         // one -- would already be destroyed by now.
 129         if ( m_win )
 130             m_win->Destroy();
 131     }
 132
 133     virtual void Show(wxWindow* parent)
 134     {
 135         if ( !m_win )
 136         {
 137             wxWindow *win = CreateDialog(parent);
 138             win->Show();
 139             m_win = win;
 140         }
 141         else
 142         {
 143             // Ideally, we'd reparent the dialog under 'parent', but it's
 144             // probably not worth the hassle. We know the old parent is still
 145             // valid, because otherwise Dismiss() would have been called and
 146             // m_win cleared.
 147             m_win->Raise();
 148         }
 149     }
 150
 151     virtual void Dismiss()
 152     {
 153         if ( m_win )
 154         {
 155             m_win->Close(/*force=*/true);
 156             m_win = NULL;
 157         }
 158     }
 159
 160 private:
 161     wxWeakRef<wxWindow> m_win;
 162 };
 163
 164 #else // !wxHAS_PREF_EDITOR_MODELESS
 165
 166 class wxModalPreferencesEditorImpl : public wxGenericPreferencesEditorImplBase
 167 {
 168 public:
 169     wxModalPreferencesEditorImpl()
 170     {
 171         m_currentPage = -1;
 172     }
 173
 174     virtual void Show(wxWindow* parent)
 175     {
 176         wxScopedPtr<wxGenericPrefsDialog> dlg(CreateDialog(parent));
 177         dlg->Fit();
 178
 179         // Restore the previously selected page, if any.
 180         if ( m_currentPage != -1 )
 181             dlg->SelectPage(m_currentPage);
 182
 183         // Don't remember the last selected page if the dialog was cancelled.
 184         if ( dlg->ShowModal() != wxID_CANCEL )
 185             m_currentPage = dlg->GetSelectedPage();
 186     }
 187
 188     virtual void Dismiss()
 189     {
 190         // nothing to do
 191     }
 192
 193 private:
 194     int m_currentPage;
 195 };
 196
 197 #endif // !wxHAS_PREF_EDITOR_MODELESS
 198
 199
 200 /*static*/
 201 wxPreferencesEditorImpl* wxPreferencesEditorImpl::Create()
 202 {
 203 #ifdef wxHAS_PREF_EDITOR_MODELESS
 204     return new wxModelessPreferencesEditorImpl();
 205 #else
 206     return new wxModalPreferencesEditorImpl();
 207 #endif
 208 }
 209
 210 #endif // !wxHAS_PREF_EDITOR_NATIVE