test whether pointer is non-NULL before using it, not after, in wxAnimation::Load...

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

diff --git a/include/wx/dialog.h b/include/wx/dialog.h
index 5f43cf3e869951ceb8d26d53d6adf145fdae9f60..766771c42d538c2b5f5cf2b7dc07b89bb7a2f38d 100644 (file)
--- a/include/wx/dialog.h
+++ b/include/wx/dialog.h
@@ -12,10 +12,6 @@
 #ifndef _WX_DIALOG_H_BASE_
 #define _WX_DIALOG_H_BASE_
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma interface "dialogbase.h"
-#endif
-
 #include "wx/defs.h"
 #include "wx/containr.h"
 #include "wx/toplevel.h"
@@ -31,37 +27,42 @@ class WXDLLEXPORT wxStdDialogButtonSizer;
 #define wxDEFAULT_DIALOG_STYLE  (wxCAPTION | wxSYSTEM_MENU | wxCLOSE_BOX)
 #endif
 
-extern WXDLLEXPORT_DATA(const wxChar*) wxDialogNameStr;
+extern WXDLLEXPORT_DATA(const wxChar) wxDialogNameStr[];
 
 class WXDLLEXPORT wxDialogBase : public wxTopLevelWindow
 {
 public:
+    enum
+    {
+        // all flags allowed in wxDialogBase::CreateButtonSizer()
+        ButtonSizerFlags = wxOK|wxCANCEL|wxYES|wxNO|wxHELP|wxNO_DEFAULT
+    };
+
     wxDialogBase() { Init(); }
     virtual ~wxDialogBase() { }
 
-    void Init();
+    // define public wxDialog methods to be implemented by the derived classes
+    virtual int ShowModal() = 0;
+    virtual void EndModal(int retCode) = 0;
+    virtual bool IsModal() const = 0;
+
 
     // Modal dialogs have a return code - usually the id of the last
     // pressed button
     void SetReturnCode(int returnCode) { m_returnCode = returnCode; }
     int GetReturnCode() const { return m_returnCode; }
 
-    // The identifier for the affirmative button
-    void SetAffirmativeId(int affirmativeId) { m_affirmativeId = affirmativeId; }
+    // Set the identifier for the affirmative button: this button will close
+    // the dialog after validating data and calling TransferDataFromWindow()
+    void SetAffirmativeId(int affirmativeId);
     int GetAffirmativeId() const { return m_affirmativeId; }
 
-    // Identifier for Esc key translation
-#if wxCHECK_VERSION(2, 7, 0)
-    #error "Uncomment SetEscapeId() implementation"
-
-    // this is what we should do in 2.7: remove the "#else" part and add
-    // m_escapeId declaration and the docs for Set/GetEscapeId()
-    void SetEscapeId(int escapeId) { m_escapeId = escapeId; }
+    // Set identifier for Esc key translation: the button with this id will
+    // close the dialog without doing anything else; special value wxID_NONE
+    // means to not handle Esc at all while wxID_ANY means to map Esc to
+    // wxID_CANCEL if present and GetAffirmativeId() otherwise
+    void SetEscapeId(int escapeId);
     int GetEscapeId() const { return m_escapeId; }
-#else // 2.6
-    // just a stub for 2.6
-    int GetEscapeId() const { return wxID_ANY; }
-#endif
 
 #if wxUSE_STATTEXT // && wxUSE_TEXTCTRL
     // splits text up at newlines and places the
@@ -69,19 +70,71 @@ public:
     wxSizer *CreateTextSizer( const wxString &message );
 #endif // wxUSE_STATTEXT // && wxUSE_TEXTCTRL
 
+    // returns a horizontal wxBoxSizer containing the given buttons
+    //
+    // notice that the returned sizer can be NULL if no buttons are put in the
+    // sizer (this mostly happens under smart phones and other atypical
+    // platforms which have hardware buttons replacing OK/Cancel and such)
+    wxSizer *CreateButtonSizer(long flags);
+
+    // returns the sizer containing CreateButtonSizer() below a separating
+    // static line for the platforms which use static lines for items
+    // separation (i.e. not Mac)
+    wxSizer *CreateSeparatedButtonSizer(long flags);
+
 #if wxUSE_BUTTON
-    // places buttons into a horizontal wxBoxSizer
-    wxSizer *CreateButtonSizer( long flags );
     wxStdDialogButtonSizer *CreateStdDialogButtonSizer( long flags );
 #endif // wxUSE_BUTTON
 
 protected:
+    // emulate click of a button with the given id if it's present in the dialog
+    //
+    // return true if button was "clicked" or false if we don't have it
+    bool EmulateButtonClickIfPresent(int id);
+
+    // this function is used by OnCharHook() to decide whether the given key
+    // should close the dialog
+    //
+    // for most platforms the default implementation (which just checks for
+    // Esc) is sufficient, but Mac port also adds Cmd-. here and other ports
+    // could do something different if needed
+    virtual bool IsEscapeKey(const wxKeyEvent& event);
+
+    // end either modal or modeless dialog, for the modal dialog rc is used as
+    // the dialog return code
+    void EndDialog(int rc);
+
+    // call Validate() and TransferDataFromWindow() and close dialog with
+    // wxID_OK return code
+    void AcceptAndClose();
+
+
     // The return code from modal dialog
     int m_returnCode;
 
     // The identifier for the affirmative button (usually wxID_OK)
     int m_affirmativeId;
 
+    // The identifier for cancel button (usually wxID_CANCEL)
+    int m_escapeId;
+
+private:
+    // common part of all ctors
+    void Init();
+
+    // handle Esc key presses
+    void OnCharHook(wxKeyEvent& event);
+
+    // handle closing the dialog window
+    void OnCloseWindow(wxCloseEvent& event);
+
+    // handle the standard buttons
+    void OnButton(wxCommandEvent& event);
+
+    // update the background colour
+    void OnSysColourChanged(wxSysColourChangedEvent& event);
+
+
     DECLARE_NO_COPY_CLASS(wxDialogBase)
     DECLARE_EVENT_TABLE()
     WX_DECLARE_CONTROL_CONTAINER();
@@ -97,8 +150,10 @@ protected:
         #include "wx/msw/dialog.h"
     #elif defined(__WXMOTIF__)
         #include "wx/motif/dialog.h"
-    #elif defined(__WXGTK__)
+    #elif defined(__WXGTK20__)
         #include "wx/gtk/dialog.h"
+    #elif defined(__WXGTK__)
+        #include "wx/gtk1/dialog.h"
     #elif defined(__WXMAC__)
         #include "wx/mac/dialog.h"
     #elif defined(__WXCOCOA__)