use explicit virtual keyword with overridden virtual methods

[wxWidgets.git] / samples / widgets / widgets.cpp

diff --git a/samples/widgets/widgets.cpp b/samples/widgets/widgets.cpp
index 8287db11ae9477f4fd231528b1fd263457111b78..510cdbc6589f8a01aaf52bc97daeb95f5c02865d 100644 (file)
--- a/samples/widgets/widgets.cpp
+++ b/samples/widgets/widgets.cpp
@@ -48,6 +48,7 @@
 #include "wx/fontdlg.h"
 #include "wx/textdlg.h"
 #include "wx/imaglist.h"
 #include "wx/fontdlg.h"
 #include "wx/textdlg.h"
 #include "wx/imaglist.h"

+#include "wx/wupdlock.h"

 
 #include "widgets.h"
 
 
 #include "widgets.h"
 


@@ -81,6 +82,9 @@ enum
     Widgets_BorderDouble,
     Widgets_BorderDefault,
 
     Widgets_BorderDouble,
     Widgets_BorderDefault,
 

+    Widgets_GlobalBusyCursor,
+    Widgets_BusyCursor,
+

     Widgets_GoToPage,
     Widgets_GoToPageLast = Widgets_GoToPage + 100
 };
     Widgets_GoToPage,
     Widgets_GoToPageLast = Widgets_GoToPage + 100
 };


@@ -133,6 +137,7 @@ protected:
     void OnExit(wxCommandEvent& event);
 
 #if wxUSE_MENUS
     void OnExit(wxCommandEvent& event);
 
 #if wxUSE_MENUS

+    void OnPageChanging(WidgetsBookCtrlEvent& event);

     void OnPageChanged(WidgetsBookCtrlEvent& event);
     void OnGoToPage(wxCommandEvent& event);
 
     void OnPageChanged(WidgetsBookCtrlEvent& event);
     void OnGoToPage(wxCommandEvent& event);
 


@@ -144,12 +149,15 @@ protected:
     void OnSetFont(wxCommandEvent& event);
     void OnEnable(wxCommandEvent& event);
     void OnSetBorder(wxCommandEvent& event);
     void OnSetFont(wxCommandEvent& event);
     void OnEnable(wxCommandEvent& event);
     void OnSetBorder(wxCommandEvent& event);

+
+    void OnToggleGlobalBusyCursor(wxCommandEvent& event);
+    void OnToggleBusyCursor(wxCommandEvent& event);

 #endif // wxUSE_MENUS
 
     // initialize the book: add all pages to it
     void InitBook();
 
 #endif // wxUSE_MENUS
 
     // initialize the book: add all pages to it
     void InitBook();
 

-    // finding current page assuming book inside book
+    // return the currently selected page (never NULL)

     WidgetsPage *CurrentPage();
 
 private:
     WidgetsPage *CurrentPage();
 
 private:


@@ -261,7 +269,7 @@ BEGIN_EVENT_TABLE(WidgetsFrame, wxFrame)
 #endif // wxUSE_TOOLTIPS
 
 #if wxUSE_MENUS
 #endif // wxUSE_TOOLTIPS
 
 #if wxUSE_MENUS

-    EVT_WIDGETS_PAGE_CHANGED(wxID_ANY, WidgetsFrame::OnPageChanged)
+    EVT_WIDGETS_PAGE_CHANGING(wxID_ANY, WidgetsFrame::OnPageChanging)

     EVT_MENU_RANGE(Widgets_GoToPage, Widgets_GoToPageLast,
                    WidgetsFrame::OnGoToPage)
 
     EVT_MENU_RANGE(Widgets_GoToPage, Widgets_GoToPageLast,
                    WidgetsFrame::OnGoToPage)
 


@@ -273,6 +281,9 @@ BEGIN_EVENT_TABLE(WidgetsFrame, wxFrame)
     EVT_MENU_RANGE(Widgets_BorderNone, Widgets_BorderDefault,
                    WidgetsFrame::OnSetBorder)
 
     EVT_MENU_RANGE(Widgets_BorderNone, Widgets_BorderDefault,
                    WidgetsFrame::OnSetBorder)
 

+    EVT_MENU(Widgets_GlobalBusyCursor,  WidgetsFrame::OnToggleGlobalBusyCursor)
+    EVT_MENU(Widgets_BusyCursor,        WidgetsFrame::OnToggleBusyCursor)
+

     EVT_MENU(wxID_EXIT, WidgetsFrame::OnExit)
 #endif // wxUSE_MENUS
 END_EVENT_TABLE()
     EVT_MENU(wxID_EXIT, WidgetsFrame::OnExit)
 #endif // wxUSE_MENUS
 END_EVENT_TABLE()


@@ -324,12 +335,7 @@ bool WidgetsApp::OnInit()
 // ----------------------------------------------------------------------------
 
 WidgetsFrame::WidgetsFrame(const wxString& title)
 // ----------------------------------------------------------------------------
 
 WidgetsFrame::WidgetsFrame(const wxString& title)

-            : wxFrame(NULL, wxID_ANY, title,
-                      wxDefaultPosition, wxDefaultSize,
-                      wxDEFAULT_FRAME_STYLE |
-                      wxNO_FULL_REPAINT_ON_RESIZE |
-                      wxCLIP_CHILDREN |
-                      wxTAB_TRAVERSAL)
+            : wxFrame(NULL, wxID_ANY, title)

 {
     // set the frame icon
     SetIcon(wxICON(sample));
 {
     // set the frame icon
     SetIcon(wxICON(sample));


@@ -364,6 +370,12 @@ WidgetsFrame::WidgetsFrame(const wxString& title)
     menuBorders->AppendRadioItem(Widgets_BorderSunken, _T("S&unken\tCtrl-Shift-5"));
     menuWidget->AppendSubMenu(menuBorders, _T("Set &border"));
 
     menuBorders->AppendRadioItem(Widgets_BorderSunken, _T("S&unken\tCtrl-Shift-5"));
     menuWidget->AppendSubMenu(menuBorders, _T("Set &border"));
 

+    menuWidget->AppendSeparator();
+    menuWidget->AppendCheckItem(Widgets_GlobalBusyCursor,
+                                _T("Toggle &global busy cursor\tCtrl-Shift-U"));
+    menuWidget->AppendCheckItem(Widgets_BusyCursor,
+                                _T("Toggle b&usy cursor\tCtrl-U"));
+

     menuWidget->AppendSeparator();
     menuWidget->Append(wxID_EXIT, _T("&Quit\tCtrl-Q"));
     mbar->Append(menuWidget, _T("&Widget"));
     menuWidget->AppendSeparator();
     menuWidget->Append(wxID_EXIT, _T("&Quit\tCtrl-Q"));
     mbar->Append(menuWidget, _T("&Widget"));


@@ -373,15 +385,14 @@ WidgetsFrame::WidgetsFrame(const wxString& title)
 #endif // wxUSE_MENUS
 
     // create controls
 #endif // wxUSE_MENUS
 
     // create controls

-    m_panel = new wxPanel(this, wxID_ANY,
-        wxDefaultPosition, wxDefaultSize, wxCLIP_CHILDREN);
+    m_panel = new wxPanel(this, wxID_ANY);

 
     wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
 
     // we have 2 panes: book with pages demonstrating the controls in the
     // upper one and the log window with some buttons in the lower
 
 
     wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
 
     // we have 2 panes: book with pages demonstrating the controls in the
     // upper one and the log window with some buttons in the lower
 

-    int style = wxNO_FULL_REPAINT_ON_RESIZE|wxCLIP_CHILDREN|WidgetBookStyle;
+    int style = wxBK_DEFAULT;

     // Uncomment to suppress page theme (draw in solid colour)
     //style |= wxNB_NOPAGETHEME;
 
     // Uncomment to suppress page theme (draw in solid colour)
     //style |= wxNB_NOPAGETHEME;
 


@@ -478,7 +489,7 @@ void WidgetsFrame::InitBook()
                                          wxID_ANY,
                                          wxDefaultPosition,
                                          wxDefaultSize,
                                          wxID_ANY,
                                          wxDefaultPosition,
                                          wxDefaultSize,

-                                         WidgetBookStyle);
+                                         wxBK_DEFAULT);

 #endif
 
         for ( WidgetsPageInfo *info = WidgetsPage::ms_widgetPages;
 #endif
 
         for ( WidgetsPageInfo *info = WidgetsPage::ms_widgetPages;


@@ -546,10 +557,11 @@ void WidgetsFrame::InitBook()
         for ( size_t n = 0; n < count; n++ )
         {
 #if USE_TREEBOOK
         for ( size_t n = 0; n < count; n++ )
         {
 #if USE_TREEBOOK

-            m_book->AddSubPage(
+            m_book->AddSubPage

 #else
 #else

-            books[cat]->AddPage(
+            books[cat]->AddPage

 #endif
 #endif

+                           (

                             pages[cat][n],
                             labels[cat][n],
                             false, // don't select
                             pages[cat][n],
                             labels[cat][n],
                             false, // don't select


@@ -558,22 +570,40 @@ void WidgetsFrame::InitBook()
         }
     }
 
         }
     }
 

+    Connect( wxID_ANY,
+             wxEVT_COMMAND_WIDGETS_PAGE_CHANGED,
+             wxWidgetsbookEventHandler(WidgetsFrame::OnPageChanged) );
+

 #if USE_TREEBOOK
 #if USE_TREEBOOK

-    // for treebook page #0 is empty parent page only
+    // for treebook page #0 is empty parent page only so select the first page
+    // with some contents
+    m_book->SetSelection(1);
+
+    // but ensure that the top of the tree is shown nevertheless
+    wxTreeCtrl * const tree = m_book->GetTreeCtrl();
+
+    wxTreeItemIdValue cookie;
+    tree->EnsureVisible(tree->GetFirstChild(tree->GetRootItem(), cookie));
+#else
+    // for other books set selection twice to force connected event handler
+    // to force lazy creation of initial visible content

     m_book->SetSelection(1);
     m_book->SetSelection(0);
     m_book->SetSelection(1);
     m_book->SetSelection(0);

-#endif
+#endif // USE_TREEBOOK

 }
 
 WidgetsPage *WidgetsFrame::CurrentPage()
 {
 }
 
 WidgetsPage *WidgetsFrame::CurrentPage()
 {

-#if USE_TREEBOOK
-    return wxStaticCast(m_book->GetCurrentPage(), WidgetsPage);
-#else
-    WidgetsBookCtrl *book = wxStaticCast(m_book->GetCurrentPage(), WidgetsBookCtrl);
-    if (!book) return NULL;
-    return wxStaticCast(book->GetCurrentPage(), WidgetsPage);
-#endif
+    wxWindow *page = m_book->GetCurrentPage();
+
+#if !USE_TREEBOOK
+    WidgetsBookCtrl *subBook = wxStaticCast(page, WidgetsBookCtrl);
+    wxCHECK_MSG( subBook, NULL, _T("no WidgetsBookCtrl?") );
+
+    page = subBook->GetCurrentPage();
+#endif // !USE_TREEBOOK
+
+    return wxStaticCast(page, WidgetsPage);

 }
 
 WidgetsFrame::~WidgetsFrame()
 }
 
 WidgetsFrame::~WidgetsFrame()


@@ -601,10 +631,47 @@ void WidgetsFrame::OnButtonClearLog(wxCommandEvent& WXUNUSED(event))
 
 #if wxUSE_MENUS
 
 
 #if wxUSE_MENUS
 

+void WidgetsFrame::OnPageChanging(WidgetsBookCtrlEvent& event)
+{
+#if USE_TREEBOOK
+    // don't allow selection of entries without pages (categories)
+    if ( !m_book->GetPage(event.GetSelection()) )
+        event.Veto();
+#else
+    wxUnusedVar(event);
+#endif
+}
+

 void WidgetsFrame::OnPageChanged(WidgetsBookCtrlEvent& event)
 {
 void WidgetsFrame::OnPageChanged(WidgetsBookCtrlEvent& event)
 {

-    wxMenuItem *item = GetMenuBar()->FindItem(Widgets_GoToPage + event.GetSelection());
-    if (item) item->Check();
+    const int sel = event.GetSelection();
+
+    // adjust "Page" menu selection
+    wxMenuItem *item = GetMenuBar()->FindItem(Widgets_GoToPage + sel);
+    if ( item )
+        item->Check();
+
+    GetMenuBar()->Check(Widgets_BusyCursor, false);
+
+    // lazy creation of the pages
+    WidgetsPage *page = CurrentPage();
+    if ( page->GetChildren().empty() )
+    {
+        wxWindowUpdateLocker noUpdates(page);
+        page->CreateContent();
+        WidgetsBookCtrl *book = wxStaticCast(page->GetParent(), WidgetsBookCtrl);
+        wxSize size;
+        for ( size_t i = 0; i < book->GetPageCount(); ++i )
+        {
+            wxWindow *page = book->GetPage(i);
+            if ( page )
+            {
+                size.IncTo(page->GetSize());
+            }
+        }
+        page->SetSize(size);
+    }
+

     event.Skip();
 }
 
     event.Skip();
 }
 


@@ -640,6 +707,7 @@ void WidgetsFrame::OnSetTooltip(wxCommandEvent& WXUNUSED(event))
     s_tip.Replace(_T("\\n"), _T("\n"));
 
     WidgetsPage *page = CurrentPage();
     s_tip.Replace(_T("\\n"), _T("\n"));
 
     WidgetsPage *page = CurrentPage();

+

     page->GetWidget()->SetToolTip(s_tip);
 
     wxControl *ctrl2 = page->GetWidget2();
     page->GetWidget()->SetToolTip(s_tip);
 
     wxControl *ctrl2 = page->GetWidget2();


@@ -654,6 +722,7 @@ void WidgetsFrame::OnSetFgCol(wxCommandEvent& WXUNUSED(event))
 #if wxUSE_COLOURDLG
     // allow for debugging the default colour the first time this is called
     WidgetsPage *page = CurrentPage();
 #if wxUSE_COLOURDLG
     // allow for debugging the default colour the first time this is called
     WidgetsPage *page = CurrentPage();

+

     if (!m_colFg.Ok())
         m_colFg = page->GetForegroundColour();
 
     if (!m_colFg.Ok())
         m_colFg = page->GetForegroundColour();
 


@@ -681,6 +750,7 @@ void WidgetsFrame::OnSetBgCol(wxCommandEvent& WXUNUSED(event))
 {
 #if wxUSE_COLOURDLG
     WidgetsPage *page = CurrentPage();
 {
 #if wxUSE_COLOURDLG
     WidgetsPage *page = CurrentPage();

+

     if ( !m_colBg.Ok() )
         m_colBg = page->GetBackgroundColour();
 
     if ( !m_colBg.Ok() )
         m_colBg = page->GetBackgroundColour();
 


@@ -708,6 +778,7 @@ void WidgetsFrame::OnSetFont(wxCommandEvent& WXUNUSED(event))
 {
 #if wxUSE_FONTDLG
     WidgetsPage *page = CurrentPage();
 {
 #if wxUSE_FONTDLG
     WidgetsPage *page = CurrentPage();

+

     if (!m_font.Ok())
         m_font = page->GetFont();
 
     if (!m_font.Ok())
         m_font = page->GetFont();
 


@@ -733,8 +804,7 @@ void WidgetsFrame::OnSetFont(wxCommandEvent& WXUNUSED(event))
 
 void WidgetsFrame::OnEnable(wxCommandEvent& event)
 {
 
 void WidgetsFrame::OnEnable(wxCommandEvent& event)
 {

-    WidgetsPage *page = CurrentPage();
-    page->GetWidget()->Enable(event.IsChecked());
+    CurrentPage()->GetWidget()->Enable(event.IsChecked());

 }
 
 void WidgetsFrame::OnSetBorder(wxCommandEvent& event)
 }
 
 void WidgetsFrame::OnSetBorder(wxCommandEvent& event)


@@ -760,9 +830,25 @@ void WidgetsFrame::OnSetBorder(wxCommandEvent& event)
     WidgetsPage::ms_defaultFlags |= border;
 
     WidgetsPage *page = CurrentPage();
     WidgetsPage::ms_defaultFlags |= border;
 
     WidgetsPage *page = CurrentPage();

+

     page->RecreateWidget();
 }
 
     page->RecreateWidget();
 }
 

+void WidgetsFrame::OnToggleGlobalBusyCursor(wxCommandEvent& event)
+{
+    if ( event.IsChecked() )
+        wxBeginBusyCursor();
+    else
+        wxEndBusyCursor();
+}
+
+void WidgetsFrame::OnToggleBusyCursor(wxCommandEvent& event)
+{
+    CurrentPage()->GetWidget()->SetCursor(*(event.IsChecked()
+                                                ? wxHOURGLASS_CURSOR
+                                                : wxSTANDARD_CURSOR));
+}
+

 #endif // wxUSE_MENUS
 
 // ----------------------------------------------------------------------------
 #endif // wxUSE_MENUS
 
 // ----------------------------------------------------------------------------