Add preferences sample.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73577 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/preferences/preferences.cpp

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+///////////////////////////////////////////////////////////////////////////////
+// Name:        samples/preferences/preferences.cpp
+// Purpose:     Sample demonstrating wxPreferencesEditor use.
+// Author:      Vaclav Slavik
+// Created:     2013-02-19
+// RCS-ID:      $Id$
+// Copyright:   (c) 2013 Vaclav Slavik <vslavik@fastmail.fm>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#include "wx/preferences.h"
+
+#include "wx/app.h"
+#include "wx/config.h"
+#include "wx/panel.h"
+#include "wx/scopedptr.h"
+#include "wx/menu.h"
+#include "wx/checkbox.h"
+#include "wx/listbox.h"
+#include "wx/stattext.h"
+#include "wx/sizer.h"
+#include "wx/artprov.h"
+#include "wx/frame.h"
+
+class MyApp : public wxApp
+{
+public:
+    virtual bool OnInit();
+
+    void ShowPreferencesEditor(wxWindow* parent);
+    void DismissPreferencesEditor();
+
+private:
+    wxScopedPtr<wxPreferencesEditor> m_prefEditor;
+};
+
+IMPLEMENT_APP(MyApp)
+
+
+class MyFrame : public wxFrame
+{
+public:
+    MyFrame() : wxFrame(NULL, wxID_ANY, "Preferences sample")
+    {
+        wxMenu *fileMenu = new wxMenu;
+        fileMenu->Append(wxID_PREFERENCES);
+        fileMenu->Append(wxID_EXIT);
+
+        wxMenuBar *menuBar = new wxMenuBar();
+        menuBar->Append(fileMenu, "&File");
+        SetMenuBar(menuBar);
+
+        Connect(wxID_PREFERENCES,
+                wxEVT_COMMAND_MENU_SELECTED,
+                wxCommandEventHandler(MyFrame::OnPref), NULL, this);
+        Connect(wxID_EXIT,
+                wxEVT_COMMAND_MENU_SELECTED,
+                wxCommandEventHandler(MyFrame::OnExit), NULL, this);
+        Connect(wxEVT_CLOSE_WINDOW,
+                wxCloseEventHandler(MyFrame::OnClose), NULL, this);
+    }
+
+private:
+    void OnPref(wxCommandEvent&)
+    {
+        wxGetApp().ShowPreferencesEditor(this);
+    }
+
+    void OnExit(wxCommandEvent&)
+    {
+        Close();
+    }
+
+    void OnClose(wxCloseEvent& e)
+    {
+        wxGetApp().DismissPreferencesEditor();
+        e.Skip();
+    }
+};
+
+
+class PrefsPageGeneralPanel : public wxPanel
+{
+public:
+    PrefsPageGeneralPanel(wxWindow *parent) : wxPanel(parent)
+    {
+        m_useMarkdown = new wxCheckBox(this, wxID_ANY, "User Markdown syntax");
+        m_spellcheck = new wxCheckBox(this, wxID_ANY, "Check spelling");
+
+        wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
+        sizer->Add(m_useMarkdown, wxSizerFlags().Border());
+        sizer->Add(m_spellcheck, wxSizerFlags().Border());
+
+        SetSizerAndFit(sizer);
+
+        // On some platforms (OS X, GNOME), changes to preferences are applied
+        // immediately rather than after the OK or Apply button is pressed.
+        if ( wxPreferencesEditor::ShouldApplyChangesImmediately() )
+        {
+            m_useMarkdown->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED,
+                                   wxCommandEventHandler(PrefsPageGeneralPanel::ChangedUseMarkdown),
+                                   NULL, this);
+            m_spellcheck->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED,
+                                  wxCommandEventHandler(PrefsPageGeneralPanel::ChangedSpellcheck),
+                                  NULL, this);
+        }
+    }
+
+    virtual bool TransferDataToWindow()
+    {
+        // This is the place where you can initialize values, e.g. from wxConfig.
+        // For demonstration purposes, we just set hardcoded values.
+        m_useMarkdown->SetValue(true);
+        m_spellcheck->SetValue(false);
+        return true;
+    }
+
+    virtual bool TransferDataFromWindow()
+    {
+        // Called on platforms with modal preferences dialog to save and apply
+        // the changes.
+        wxCommandEvent dummy;
+        ChangedUseMarkdown(dummy);
+        ChangedSpellcheck(dummy);
+        return true;
+    }
+
+private:
+    void ChangedUseMarkdown(wxCommandEvent& WXUNUSED(e))
+    {
+        // save new m_useMarkdown value and apply the change to the app
+    }
+
+    void ChangedSpellcheck(wxCommandEvent& WXUNUSED(e))
+    {
+        // save new m_spellcheck value and apply the change to the app
+    }
+
+    wxCheckBox *m_useMarkdown;
+    wxCheckBox *m_spellcheck;
+};
+
+class PrefsPageGeneral : public wxStockPreferencesPage
+{
+public:
+    PrefsPageGeneral() : wxStockPreferencesPage(Kind_General) {}
+    virtual wxWindow *CreateWindow(wxWindow *parent)
+        { return new PrefsPageGeneralPanel(parent); }
+};
+
+
+class PrefsPageTopicsPanel : public wxPanel
+{
+public:
+    PrefsPageTopicsPanel(wxWindow *parent) : wxPanel(parent)
+    {
+        wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
+        sizer->Add(new wxStaticText(this, wxID_ANY, "Search in these topics:"), wxSizerFlags().Border());
+        wxListBox *box = new wxListBox(this, wxID_ANY);
+        box->SetMinSize(wxSize(400, 300));
+        sizer->Add(box, wxSizerFlags(1).Border().Expand());
+        m_fulltext = new wxCheckBox(this, wxID_ANY, "Automatically build fulltext index");
+        sizer->Add(m_fulltext, wxSizerFlags().Border());
+
+        SetSizerAndFit(sizer);
+
+        if ( wxPreferencesEditor::ShouldApplyChangesImmediately() )
+        {
+            m_fulltext->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED,
+                                wxCommandEventHandler(PrefsPageTopicsPanel::ChangedFulltext),
+                                NULL, this);
+        }
+    }
+
+    virtual bool TransferDataToWindow()
+    {
+        // This is the place where you can initialize values, e.g. from wxConfig.
+        // For demonstration purposes, we just set hardcoded values.
+        m_fulltext->SetValue(true);
+        // TODO: handle the listbox
+        return true;
+    }
+
+    virtual bool TransferDataFromWindow()
+    {
+        // Called on platforms with modal preferences dialog to save and apply
+        // the changes.
+        wxCommandEvent dummy;
+        ChangedFulltext(dummy);
+        // TODO: handle the listbox
+        return true;
+    }
+
+private:
+    void ChangedFulltext(wxCommandEvent& WXUNUSED(e))
+    {
+        // save new m_fulltext value and apply the change to the app
+    }
+
+    wxCheckBox *m_fulltext;
+};
+
+class PrefsPageTopics : public wxPreferencesPage
+{
+public:
+    virtual wxString GetName() const { return "Topics"; }
+    virtual wxBitmap GetLargeIcon() const
+        { return wxArtProvider::GetBitmap(wxART_HELP, wxART_TOOLBAR); }
+    virtual wxWindow *CreateWindow(wxWindow *parent)
+        { return new PrefsPageTopicsPanel(parent); }
+};
+
+
+
+bool MyApp::OnInit()
+{
+    if ( !wxApp::OnInit() )
+        return false;
+
+    MyFrame *frame = new MyFrame();
+    frame->Show(true);
+
+    return true;
+}
+
+void MyApp::ShowPreferencesEditor(wxWindow* parent)
+{
+    if ( !m_prefEditor )
+    {
+        m_prefEditor.reset(new wxPreferencesEditor);
+        m_prefEditor->AddPage(new PrefsPageGeneral());
+        m_prefEditor->AddPage(new PrefsPageTopics());
+    }
+
+    m_prefEditor->Show(parent);
+}
+
+void MyApp::DismissPreferencesEditor()
+{
+    if ( m_prefEditor )
+        m_prefEditor->Dismiss();
+}