remove warnings of intentionally unreachable code

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

diff --git a/include/wx/toplevel.h b/include/wx/toplevel.h
index 64e9384a99ae23f6eed3f9adecf6fde4827c005f..268ecbd4ad121a04f5c3501f4c59c0f3b375e4fb 100644 (file)
--- a/include/wx/toplevel.h
+++ b/include/wx/toplevel.h
@@ -14,19 +14,15 @@
 #ifndef _WX_TOPLEVEL_BASE_H_
 #define _WX_TOPLEVEL_BASE_H_
 
 #ifndef _WX_TOPLEVEL_BASE_H_
 #define _WX_TOPLEVEL_BASE_H_
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma interface "toplevelbase.h"
-#endif
-

 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 // headers
 // ----------------------------------------------------------------------------
 

-#include "wx/window.h"
+#include "wx/nonownedwnd.h"

 #include "wx/iconbndl.h"
 
 #include "wx/iconbndl.h"
 

-// the default names for various classs
-WXDLLEXPORT_DATA(extern const wxChar*) wxFrameNameStr;
+// the default names for various classes
+extern WXDLLEXPORT_DATA(const wxChar) wxFrameNameStr[];

 
 class WXDLLEXPORT wxTopLevelWindowBase;
 
 
 class WXDLLEXPORT wxTopLevelWindowBase;
 


@@ -48,15 +44,19 @@ class WXDLLEXPORT wxTopLevelWindowBase;
 #define wxTINY_CAPTION_VERT     0x0080
 #define wxRESIZE_BORDER         0x0040
 
 #define wxTINY_CAPTION_VERT     0x0080
 #define wxRESIZE_BORDER         0x0040
 

-// deprecated versions defined for compatibility reasons
-#define wxRESIZE_BOX            wxMAXIMIZE_BOX
-#define wxTHICK_FRAME           wxRESIZE_BORDER
+#if WXWIN_COMPATIBILITY_2_6
+
+    // deprecated versions defined for compatibility reasons
+    #define wxRESIZE_BOX            wxMAXIMIZE_BOX
+    #define wxTHICK_FRAME           wxRESIZE_BORDER
+
+    // obsolete styles, unused any more
+    #define wxDIALOG_MODAL          0
+    #define wxDIALOG_MODELESS       0
+    #define wxNO_3D                 0
+    #define wxUSER_COLOURS          0

 
 

-// obsolete styles, unused any more
-#define wxDIALOG_MODAL          0
-#define wxDIALOG_MODELESS       0
-#define wxNO_3D                 0
-#define wxUSER_COLOURS          0
+#endif // WXWIN_COMPATIBILITY_2_6

 
 // default style
 //
 
 // default style
 //


@@ -71,7 +71,7 @@ class WXDLLEXPORT wxTopLevelWindowBase;
     #elif defined(__WINCE_STANDARDSDK__)
         #define wxDEFAULT_FRAME_STYLE (wxMAXIMIZE|wxCLOSE_BOX)
     #else
     #elif defined(__WINCE_STANDARDSDK__)
         #define wxDEFAULT_FRAME_STYLE (wxMAXIMIZE|wxCLOSE_BOX)
     #else

-        #define wxDEFAULT_FRAME_STYLE (0)
+        #define wxDEFAULT_FRAME_STYLE (wxNO_BORDER)

     #endif
 #else // !__WXWINCE__
     #define wxDEFAULT_FRAME_STYLE \
     #endif
 #else // !__WXWINCE__
     #define wxDEFAULT_FRAME_STYLE \


@@ -115,7 +115,7 @@ enum
 // wxTopLevelWindow: a top level (as opposed to child) window
 // ----------------------------------------------------------------------------
 
 // wxTopLevelWindow: a top level (as opposed to child) window
 // ----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxTopLevelWindowBase : public wxWindow
+class WXDLLEXPORT wxTopLevelWindowBase : public wxNonOwnedWindow

 {
 public:
     // construction
 {
 public:
     // construction


@@ -137,20 +137,24 @@ public:
     // return true if the frame is maximized
     virtual bool IsMaximized() const = 0;
 
     // return true if the frame is maximized
     virtual bool IsMaximized() const = 0;
 

+    // return true if the frame is always maximized
+    // due to native guidelines or current policy
+    virtual bool IsAlwaysMaximized() const;
+

     // return true if the frame is iconized
     virtual bool IsIconized() const = 0;
 
     // get the frame icon
     // return true if the frame is iconized
     virtual bool IsIconized() const = 0;
 
     // get the frame icon

-    const wxIcon& GetIcon() const { return m_icons.GetIcon( -1 ); }
+    wxIcon GetIcon() const;

 
     // get the frame icons
     const wxIconBundle& GetIcons() const { return m_icons; }
 
 
     // get the frame icons
     const wxIconBundle& GetIcons() const { return m_icons; }
 

-    // set the frame icon
-    virtual void SetIcon(const wxIcon& icon) { m_icons = wxIconBundle( icon ); }
+    // set the frame icon: implemented in terms of SetIcons()
+    void SetIcon(const wxIcon& icon);

 
     // set the frame icons
 
     // set the frame icons

-    virtual void SetIcons(const wxIconBundle& icons ) { m_icons = icons; }
+    virtual void SetIcons(const wxIconBundle& icons) { m_icons = icons; }

 
     // maximize the window to cover entire screen
     virtual bool ShowFullScreen(bool show, long style = wxFULLSCREEN_ALL) = 0;
 
     // maximize the window to cover entire screen
     virtual bool ShowFullScreen(bool show, long style = wxFULLSCREEN_ALL) = 0;


@@ -158,13 +162,13 @@ public:
     // return true if the frame is in fullscreen mode
     virtual bool IsFullScreen() const = 0;
 
     // return true if the frame is in fullscreen mode
     virtual bool IsFullScreen() const = 0;
 

-    /*
-       for now we already have them in wxWindow, but this is wrong: these
-       methods really only make sense for wxTopLevelWindow!
-
+    // the title of the top level window: the text which the
+    // window shows usually at the top of the frame/dialog in dedicated bar

     virtual void SetTitle(const wxString& title) = 0;
     virtual wxString GetTitle() const = 0;
     virtual void SetTitle(const wxString& title) = 0;
     virtual wxString GetTitle() const = 0;

-     */
+
+    // enable/disable close button [x]
+    virtual bool EnableCloseButton(bool WXUNUSED(enable) ) { return false; } 

 
     // Set the shape of the window to the given region.
     // Returns true if the platform supports this feature (and the
 
     // Set the shape of the window to the given region.
     // Returns true if the platform supports this feature (and the


@@ -176,22 +180,59 @@ public:
     virtual void RequestUserAttention(int flags = wxUSER_ATTENTION_INFO);
 
     // Is this the active frame (highlighted in the taskbar)?
     virtual void RequestUserAttention(int flags = wxUSER_ATTENTION_INFO);
 
     // Is this the active frame (highlighted in the taskbar)?

-    virtual bool IsActive()
-        { return (wxGetTopLevelParent(FindFocus()) == this); }
+    virtual bool IsActive() { return wxGetTopLevelParent(FindFocus()) == this; }
+
+    // this function may be overridden to return false to allow closing the
+    // application even when this top level window is still open
+    //
+    // notice that the window is still closed prior to the application exit and
+    // so it can still veto it even if it returns false from here
+    virtual bool ShouldPreventAppExit() const { return true; }
+

 
 #if defined(__SMARTPHONE__)
     virtual void SetLeftMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
     virtual void SetRightMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 #endif // __SMARTPHONE__
 
 
 #if defined(__SMARTPHONE__)
     virtual void SetLeftMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
     virtual void SetRightMenu(int id = wxID_ANY, const wxString& label = wxEmptyString, wxMenu *subMenu = NULL) = 0;
 #endif // __SMARTPHONE__
 

+    // centre the window on screen: this is just a shortcut
+    void CentreOnScreen(int dir = wxBOTH) { DoCentre(dir | wxCENTRE_ON_SCREEN); }
+    void CenterOnScreen(int dir = wxBOTH) { CentreOnScreen(dir); }
+
+
+    // default item access: we have a permanent default item which is the one
+    // set by the user code but we may also have a temporary default item which
+    // would be chosen if the user pressed "Enter" now but the default action
+    // reverts to the "permanent" default as soon as this temporary default
+    // item loses focus
+
+    // used to reset default if pointing to removed child
+    virtual void RemoveChild(wxWindowBase *child);
+
+    // get the default item, temporary or permanent
+    wxWindow *GetDefaultItem() const
+        { return m_winTmpDefault ? m_winTmpDefault : m_winDefault; }
+
+    // set the permanent default item, return the old default
+    wxWindow *SetDefaultItem(wxWindow *win)
+        { wxWindow *old = GetDefaultItem(); m_winDefault = win; return old; }
+
+    // return the temporary default item, can be NULL
+    wxWindow *GetTmpDefaultItem() const { return m_winTmpDefault; }
+
+    // set a temporary default item, SetTmpDefaultItem(NULL) should be called
+    // soon after a call to SetTmpDefaultItem(window), return the old default
+    wxWindow *SetTmpDefaultItem(wxWindow *win)
+        { wxWindow *old = GetDefaultItem(); m_winTmpDefault = win; return old; }
+
+

     // implementation only from now on
     // -------------------------------
 
     // override some base class virtuals
     virtual bool Destroy();
     virtual bool IsTopLevel() const { return true; }
     // implementation only from now on
     // -------------------------------
 
     // override some base class virtuals
     virtual bool Destroy();
     virtual bool IsTopLevel() const { return true; }

-    virtual wxSize GetMaxSize() const;
-    virtual bool ProvidesBackground() const { return true; }
+    virtual bool IsVisible() const { return IsShown(); }

 
     // event handlers
     void OnCloseWindow(wxCloseEvent& event);
 
     // event handlers
     void OnCloseWindow(wxCloseEvent& event);


@@ -207,19 +248,37 @@ public:
     // do the window-specific processing after processing the update event
     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event) ;
 
     // do the window-specific processing after processing the update event
     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event) ;
 

+    // a different API for SetSizeHints
+    virtual void SetMinSize(const wxSize& minSize);
+    virtual void SetMaxSize(const wxSize& maxSize);
+
+    // set size hints for "window manager"
+    virtual void DoSetSizeHints( int minW, int minH,
+                                 int maxW = wxDefaultCoord, int maxH = wxDefaultCoord,
+                                 int incW = wxDefaultCoord, int incH = wxDefaultCoord );
+

 protected:
     // the frame client to screen translation should take account of the
     // toolbar which may shift the origin of the client area
     virtual void DoClientToScreen(int *x, int *y) const;
     virtual void DoScreenToClient(int *x, int *y) const;
 
 protected:
     // the frame client to screen translation should take account of the
     // toolbar which may shift the origin of the client area
     virtual void DoClientToScreen(int *x, int *y) const;
     virtual void DoScreenToClient(int *x, int *y) const;
 

+    // add support for wxCENTRE_ON_SCREEN
+    virtual void DoCentre(int dir);
+
+    // no need to do client to screen translation to get our position in screen
+    // coordinates: this is already the case
+    virtual void DoGetScreenPosition(int *x, int *y) const
+    {
+        DoGetPosition(x, y);
+    }
+

     // test whether this window makes part of the frame
     // (menubar, toolbar and statusbar are excluded from automatic layout)
     virtual bool IsOneOfBars(const wxWindow *WXUNUSED(win)) const
         { return false; }
 
     // test whether this window makes part of the frame
     // (menubar, toolbar and statusbar are excluded from automatic layout)
     virtual bool IsOneOfBars(const wxWindow *WXUNUSED(win)) const
         { return false; }
 

-    // check if we should exit the program after deleting this top level
-    // window (this is used in common dtor and wxMSW code)
+    // check if we should exit the program after deleting this window

     bool IsLastBeforeExit() const;
 
     // send the iconize event, return true if processed
     bool IsLastBeforeExit() const;
 
     // send the iconize event, return true if processed


@@ -236,9 +295,20 @@ protected:
     static int WidthDefault(int w) { return w == wxDefaultCoord ? GetDefaultSize().x : w; }
     static int HeightDefault(int h) { return h == wxDefaultCoord ? GetDefaultSize().y : h; }
 
     static int WidthDefault(int w) { return w == wxDefaultCoord ? GetDefaultSize().x : w; }
     static int HeightDefault(int h) { return h == wxDefaultCoord ? GetDefaultSize().y : h; }
 

+    // reset m_winDefault and m_winTmpDefault if they point to the window being
+    // destroyed
+    void OnChildDestroy(wxWindowDestroyEvent& event);
+
+

     // the frame icon
     wxIconBundle m_icons;
 
     // the frame icon
     wxIconBundle m_icons;
 

+    // a default window (usually a button) or NULL
+    wxWindow *m_winDefault;
+
+    // a temporary override of m_winDefault, use the latter if NULL
+    wxWindow *m_winTmpDefault;
+

     DECLARE_NO_COPY_CLASS(wxTopLevelWindowBase)
     DECLARE_EVENT_TABLE()
 };
     DECLARE_NO_COPY_CLASS(wxTopLevelWindowBase)
     DECLARE_EVENT_TABLE()
 };


@@ -251,15 +321,21 @@ protected:
 #elif defined(__WXMSW__)
     #include "wx/msw/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowMSW
 #elif defined(__WXMSW__)
     #include "wx/msw/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowMSW

-#elif defined(__WXGTK__)
+#elif defined(__WXGTK20__)

     #include "wx/gtk/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowGTK
     #include "wx/gtk/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowGTK

+#elif defined(__WXGTK__)
+    #include "wx/gtk1/toplevel.h"
+    #define wxTopLevelWindowNative wxTopLevelWindowGTK

 #elif defined(__WXX11__)
     #include "wx/x11/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowX11
 #elif defined(__WXMGL__)
     #include "wx/mgl/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowMGL
 #elif defined(__WXX11__)
     #include "wx/x11/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowX11
 #elif defined(__WXMGL__)
     #include "wx/mgl/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowMGL

+#elif defined(__WXDFB__)
+    #include "wx/dfb/toplevel.h"
+    #define wxTopLevelWindowNative wxTopLevelWindowDFB

 #elif defined(__WXMAC__)
     #include "wx/mac/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowMac
 #elif defined(__WXMAC__)
     #include "wx/mac/toplevel.h"
     #define wxTopLevelWindowNative wxTopLevelWindowMac