Support using GetTextExtent() with empty string to get descent in wxOSX.

[wxWidgets.git] / include / wx / wizard.h

diff --git a/include/wx/wizard.h b/include/wx/wizard.h
index 584aa494ab7980973ba5db8b5664e2ae7fe1e106..59fe14f870e53559c5c1e91ac135043cf9122174 100644 (file)
--- a/include/wx/wizard.h
+++ b/include/wx/wizard.h
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        wizard.h
+// Name:        wx/wizard.h
 // Purpose:     wxWizard class: a GUI control presenting the user with a
 //              sequence of dialogs which allows to simply perform some task
 // Author:      Vadim Zeitlin (partly based on work by Ron Kuris and Kevin B.
@@ -147,7 +147,15 @@ public:
     void SetPrev(wxWizardPage *prev) { m_prev = prev; }
     void SetNext(wxWizardPage *next) { m_next = next; }
 
-    // a convenience function to make the pages follow each other
+    // Convenience functions to make the pages follow each other without having
+    // to call their SetPrev() or SetNext() explicitly.
+    wxWizardPageSimple& Chain(wxWizardPageSimple* next)
+    {
+        SetNext(next);
+        next->SetPrev(this);
+        return *next;
+    }
+
     static void Chain(wxWizardPageSimple *first, wxWizardPageSimple *second)
     {
         wxCHECK_RET( first && second,
@@ -244,7 +252,7 @@ public:
     bool Validate() { return true; }
 
 private:
-    DECLARE_NO_COPY_CLASS(wxWizardBase)
+    wxDECLARE_NO_COPY_CLASS(wxWizardBase);
 };
 
 // include the real class declaration
@@ -285,11 +293,13 @@ private:
 // macros for handling wxWizardEvents
 // ----------------------------------------------------------------------------
 
-wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_PAGE_CHANGED, wxWizardEvent )
-wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_PAGE_CHANGING, wxWizardEvent )
-wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_CANCEL, wxWizardEvent )
-wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_HELP, wxWizardEvent )
-wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_FINISHED, wxWizardEvent )
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_PAGE_CHANGED, wxWizardEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_PAGE_CHANGING, wxWizardEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_CANCEL, wxWizardEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_HELP, wxWizardEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_FINISHED, wxWizardEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_PAGE_SHOWN, wxWizardEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_WIZARD_BEFORE_PAGE_CHANGED, wxWizardEvent );
 
 typedef void (wxEvtHandler::*wxWizardEventFunction)(wxWizardEvent&);
 
@@ -306,6 +316,10 @@ typedef void (wxEvtHandler::*wxWizardEventFunction)(wxWizardEvent&);
 // changed - unless the event handler vetoes the event
 #define EVT_WIZARD_PAGE_CHANGING(id, fn) wx__DECLARE_WIZARDEVT(PAGE_CHANGING, id, fn)
 
+// Called before GetNext/GetPrev is called, so that the handler can change state that will be
+// used when GetNext/GetPrev is called. PAGE_CHANGING is called too late to influence GetNext/GetPrev.
+#define EVT_WIZARD_BEFORE_PAGE_CHANGED(id, fn) wx__DECLARE_WIZARDEVT(BEFORE_PAGE_CHANGED, id, fn)
+
 // the user pressed "Cancel" button and the wizard is going to be dismissed -
 // unless the event handler vetoes the event
 #define EVT_WIZARD_CANCEL(id, fn) wx__DECLARE_WIZARDEVT(CANCEL, id, fn)
@@ -316,6 +330,9 @@ typedef void (wxEvtHandler::*wxWizardEventFunction)(wxWizardEvent&);
 // the user pressed "Help" button
 #define EVT_WIZARD_HELP(id, fn) wx__DECLARE_WIZARDEVT(HELP, id, fn)
 
+// the page was just shown and laid out
+#define EVT_WIZARD_PAGE_SHOWN(id, fn) wx__DECLARE_WIZARDEVT(PAGE_SHOWN, id, fn)
+
 #endif // wxUSE_WIZARDDLG
 
 #endif // _WX_WIZARD_H_