Don't create multiple parent-less top level frames in layout sample.

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

diff --git a/include/wx/window.h b/include/wx/window.h
index 52b6daafc29b9224123bbd18f60c9ee803f9df29..a5cc6c4fa579de17e8e6f21375df8a1d346fa90a 100644 (file)
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -379,6 +379,13 @@ public:
             *h = s.y;
     }
 
             *h = s.y;
     }
 

+        // Determine the best size in the other direction if one of them is
+        // fixed. This is used with windows that can wrap their contents and
+        // returns input-independent best size for the others.
+    int GetBestHeight(int width) const;
+    int GetBestWidth(int height) const;
+
+

     void SetScrollHelper( wxScrollHelper *sh )   { m_scrollHelper = sh; }
     wxScrollHelper *GetScrollHelper()            { return m_scrollHelper; }
 
     void SetScrollHelper( wxScrollHelper *sh )   { m_scrollHelper = sh; }
     wxScrollHelper *GetScrollHelper()            { return m_scrollHelper; }
 


@@ -408,7 +415,7 @@ public:
     void Centre(int dir = wxBOTH) { DoCentre(dir); }
     void Center(int dir = wxBOTH) { DoCentre(dir); }
 
     void Centre(int dir = wxBOTH) { DoCentre(dir); }
     void Center(int dir = wxBOTH) { DoCentre(dir); }
 

-        // centre with respect to the the parent window
+        // centre with respect to the parent window

     void CentreOnParent(int dir = wxBOTH) { DoCentre(dir); }
     void CenterOnParent(int dir = wxBOTH) { CentreOnParent(dir); }
 
     void CentreOnParent(int dir = wxBOTH) { DoCentre(dir); }
     void CenterOnParent(int dir = wxBOTH) { CentreOnParent(dir); }
 


@@ -446,7 +453,7 @@ public:
 
 
         // Call these to override what GetBestSize() returns. This
 
 
         // Call these to override what GetBestSize() returns. This

-        // method is only virtual because it is overriden in wxTLW
+        // method is only virtual because it is overridden in wxTLW

         // as a different API for SetSizeHints().
     virtual void SetMinSize(const wxSize& minSize);
     virtual void SetMaxSize(const wxSize& maxSize);
         // as a different API for SetSizeHints().
     virtual void SetMinSize(const wxSize& minSize);
     virtual void SetMaxSize(const wxSize& maxSize);


@@ -480,7 +487,7 @@ public:
         // windows this is just the client area of the window, but for
         // some like scrolled windows it is more or less independent of
         // the screen window size.  You may override the DoXXXVirtual
         // windows this is just the client area of the window, but for
         // some like scrolled windows it is more or less independent of
         // the screen window size.  You may override the DoXXXVirtual

-        // methods below for classes where that is is the case.
+        // methods below for classes where that is the case.

 
     void SetVirtualSize( const wxSize &size ) { DoSetVirtualSize( size.x, size.y ); }
     void SetVirtualSize( int x, int y ) { DoSetVirtualSize( x, y ); }
 
     void SetVirtualSize( const wxSize &size ) { DoSetVirtualSize( size.x, size.y ); }
     void SetVirtualSize( int x, int y ) { DoSetVirtualSize( x, y ); }


@@ -525,12 +532,7 @@ public:
     // tells the item how much more space there is available in the opposite
     // direction (-1 if unknown).
     virtual bool
     // tells the item how much more space there is available in the opposite
     // direction (-1 if unknown).
     virtual bool

-    InformFirstDirection(int WXUNUSED(direction),
-                         int WXUNUSED(size),
-                         int WXUNUSED(availableOtherDir))
-    {
-        return false;
-    }
+    InformFirstDirection(int direction, int size, int availableOtherDir);

 
     // sends a size event to the window using its current size -- this has an
     // effect of refreshing the window layout
 
     // sends a size event to the window using its current size -- this has an
     // effect of refreshing the window layout


@@ -553,6 +555,43 @@ public:
     // this is the same as SendSizeEventToParent() but using PostSizeEvent()
     void PostSizeEventToParent() { SendSizeEventToParent(wxSEND_EVENT_POST); }
 
     // this is the same as SendSizeEventToParent() but using PostSizeEvent()
     void PostSizeEventToParent() { SendSizeEventToParent(wxSEND_EVENT_POST); }
 

+    // These functions should be used before repositioning the children of
+    // this window to reduce flicker or, in MSW case, even avoid display
+    // corruption in some situations (so they're more than just optimization).
+    //
+    // EndRepositioningChildren() should be called if and only if
+    // BeginRepositioningChildren() returns true. To ensure that this is always
+    // done automatically, use ChildrenRepositioningGuard class below.
+    virtual bool BeginRepositioningChildren() { return false; }
+    virtual void EndRepositioningChildren() { }
+
+    // A simple helper which ensures that EndRepositioningChildren() is called
+    // from its dtor if and only if calling BeginRepositioningChildren() from
+    // the ctor returned true.
+    class ChildrenRepositioningGuard
+    {
+    public:
+        // Notice that window can be NULL here, for convenience. In this case
+        // this class simply doesn't do anything.
+        wxEXPLICIT ChildrenRepositioningGuard(wxWindowBase* win)
+            : m_win(win),
+              m_callEnd(win && win->BeginRepositioningChildren())
+        {
+        }
+
+        ~ChildrenRepositioningGuard()
+        {
+            if ( m_callEnd )
+                m_win->EndRepositioningChildren();
+        }
+
+    private:
+        wxWindowBase* const m_win;
+        const bool m_callEnd;
+
+        wxDECLARE_NO_COPY_CLASS(ChildrenRepositioningGuard);
+    };
+

 
     // window state
     // ------------
 
     // window state
     // ------------


@@ -628,9 +667,10 @@ public:
 
     bool HasExtraStyle(int exFlag) const { return (m_exStyle & exFlag) != 0; }
 
 
     bool HasExtraStyle(int exFlag) const { return (m_exStyle & exFlag) != 0; }
 

+#if WXWIN_COMPATIBILITY_2_8

         // make the window modal (all other windows unresponsive)
         // make the window modal (all other windows unresponsive)

-    virtual void MakeModal(bool modal = true);
-
+    wxDEPRECATED( virtual void MakeModal(bool modal = true) );
+#endif

 
     // (primitive) theming support
     // ---------------------------
 
     // (primitive) theming support
     // ---------------------------


@@ -744,8 +784,12 @@ public:
         // is this window a top level one?
     virtual bool IsTopLevel() const;
 
         // is this window a top level one?
     virtual bool IsTopLevel() const;
 

+        // is this window a child or grand child of this one (inside the same
+        // TLW)?
+    bool IsDescendant(wxWindowBase* win) const;
+

         // it doesn't really change parent, use Reparent() instead
         // it doesn't really change parent, use Reparent() instead

-    void SetParent( wxWindowBase *parent ) { m_parent = (wxWindow *)parent; }
+    void SetParent( wxWindowBase *parent );

         // change the real parent of this window, return true if the parent
         // was changed, false otherwise (error or newParent == oldParent)
     virtual bool Reparent( wxWindowBase *newParent );
         // change the real parent of this window, return true if the parent
         // was changed, false otherwise (error or newParent == oldParent)
     virtual bool Reparent( wxWindowBase *newParent );


@@ -1034,8 +1078,7 @@ public:
     wxColour GetForegroundColour() const;
 
         // Set/get the background style.
     wxColour GetForegroundColour() const;
 
         // Set/get the background style.

-    virtual bool SetBackgroundStyle(wxBackgroundStyle style)
-        { m_backgroundStyle = style; return true; }
+    virtual bool SetBackgroundStyle(wxBackgroundStyle style);

     wxBackgroundStyle GetBackgroundStyle() const
         { return m_backgroundStyle; }
 
     wxBackgroundStyle GetBackgroundStyle() const
         { return m_backgroundStyle; }
 


@@ -1044,6 +1087,13 @@ public:
         // from a parent window
     virtual bool HasTransparentBackground() { return false; }
 
         // from a parent window
     virtual bool HasTransparentBackground() { return false; }
 

+        // Returns true if background transparency is supported for this
+        // window, i.e. if calling SetBackgroundStyle(wxBG_STYLE_TRANSPARENT)
+        // has a chance of succeeding. If reason argument is non-NULL, returns a
+        // user-readable explanation of why it isn't supported if the return
+        // value is false.
+    virtual bool IsTransparentBackgroundSupported(wxString* reason = NULL) const;
+

         // set/retrieve the font for the window (SetFont() returns true if the
         // font really changed)
     virtual bool SetFont(const wxFont& font) = 0;
         // set/retrieve the font for the window (SetFont() returns true if the
         // font really changed)
     virtual bool SetFont(const wxFont& font) = 0;


@@ -1147,7 +1197,8 @@ public:
 
     // simply return the id of the selected item or wxID_NONE without
     // generating any events
 
     // simply return the id of the selected item or wxID_NONE without
     // generating any events

-    int GetPopupMenuSelectionFromUser(wxMenu& menu, const wxPoint& pos)
+    int GetPopupMenuSelectionFromUser(wxMenu& menu,
+                                      const wxPoint& pos = wxDefaultPosition)

         { return DoGetPopupMenuSelectionFromUser(menu, pos.x, pos.y); }
     int GetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y)
         { return DoGetPopupMenuSelectionFromUser(menu, x, y); }
         { return DoGetPopupMenuSelectionFromUser(menu, pos.x, pos.y); }
     int GetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y)
         { return DoGetPopupMenuSelectionFromUser(menu, x, y); }


@@ -1258,6 +1309,15 @@ public:
         // get the associated tooltip or NULL if none
     wxToolTip* GetToolTip() const { return m_tooltip; }
     wxString GetToolTipText() const;
         // get the associated tooltip or NULL if none
     wxToolTip* GetToolTip() const { return m_tooltip; }
     wxString GetToolTipText() const;

+
+    // Use the same tool tip as the given one (which can be NULL to indicate
+    // that no tooltip should be used) for this window. This is currently only
+    // used by wxCompositeWindow::DoSetToolTip() implementation and is not part
+    // of the public wx API.
+    //
+    // Returns true if tip was valid and we copied it or false if it was NULL
+    // and we reset our own tooltip too.
+    bool CopyToolTip(wxToolTip *tip);

 #else // !wxUSE_TOOLTIPS
         // make it much easier to compile apps in an environment
         // that doesn't support tooltips, such as PocketPC
 #else // !wxUSE_TOOLTIPS
         // make it much easier to compile apps in an environment
         // that doesn't support tooltips, such as PocketPC


@@ -1369,10 +1429,11 @@ public:
 
         // virtual function for implementing internal idle
         // behaviour
 
         // virtual function for implementing internal idle
         // behaviour

-        virtual void OnInternalIdle() {}
+        virtual void OnInternalIdle();

 
 

-        // call internal idle recursively
-//        void ProcessInternalIdle() ;
+    // Send idle event to window and all subwindows
+    // Returns true if more idle time is requested.
+    virtual bool SendIdleEvents(wxIdleEvent& event);

 
         // get the handle of the window for the underlying window system: this
         // is only used for wxWin itself or for user code which wants to call
 
         // get the handle of the window for the underlying window system: this
         // is only used for wxWin itself or for user code which wants to call


@@ -1425,6 +1486,15 @@ public:
     virtual wxWindow *GetMainWindowOfCompositeControl()
         { return (wxWindow*)this; }
 
     virtual wxWindow *GetMainWindowOfCompositeControl()
         { return (wxWindow*)this; }
 

+    // If this function returns true, keyboard navigation events shouldn't
+    // escape from it. A typical example of such "navigation domain" is a top
+    // level window because pressing TAB in one of them must not transfer focus
+    // to a different top level window. But it's not limited to them, e.g. MDI
+    // children frames are not top level windows (and their IsTopLevel()
+    // returns false) but still are self-contained navigation domains as well.
+    virtual bool IsTopNavigationDomain() const { return false; }
+
+

 protected:
     // helper for the derived class Create() methods: the first overload, with
     // validator parameter, should be used for child windows while the second
 protected:
     // helper for the derived class Create() methods: the first overload, with
     // validator parameter, should be used for child windows while the second


@@ -1478,11 +1548,6 @@ protected:
     // widgets state are necessary
     virtual void DoEnable(bool WXUNUSED(enable)) { }
 
     // widgets state are necessary
     virtual void DoEnable(bool WXUNUSED(enable)) { }
 

-    // called when the on-screen widget state changes and provides an
-    // an opportunity for the widget to update its visual state (colours,
-    // fonts, anything else) as necessary
-    virtual void OnEnabled(bool WXUNUSED(enabled)) { }
-

 
     // the window id - a number which uniquely identifies a window among
     // its siblings unless it is wxID_ANY
 
     // the window id - a number which uniquely identifies a window among
     // its siblings unless it is wxID_ANY


@@ -1661,7 +1726,15 @@ protected:
     // (GetBorderSize() will be used to add them)
     virtual wxSize DoGetBestClientSize() const { return wxDefaultSize; }
 
     // (GetBorderSize() will be used to add them)
     virtual wxSize DoGetBestClientSize() const { return wxDefaultSize; }
 

-    // this is the virtual function to be overriden in any derived class which
+    // These two methods can be overridden to implement intelligent
+    // width-for-height and/or height-for-width best size determination for the
+    // window. By default the fixed best size is used.
+    virtual int DoGetBestClientHeight(int WXUNUSED(width)) const
+        { return wxDefaultCoord; }
+    virtual int DoGetBestClientWidth(int WXUNUSED(height)) const
+        { return wxDefaultCoord; }
+
+    // this is the virtual function to be overridden in any derived class which

     // wants to change how SetSize() or Move() works - it is called by all
     // versions of these functions in the base class
     virtual void DoSetSize(int x, int y,
     // wants to change how SetSize() or Move() works - it is called by all
     // versions of these functions in the base class
     virtual void DoSetSize(int x, int y,


@@ -1679,8 +1752,9 @@ protected:
     // of the left and the right border in the x component of the returned size
     // and the sum of the heights of the top and bottom borders in the y one
     //
     // of the left and the right border in the x component of the returned size
     // and the sum of the heights of the top and bottom borders in the y one
     //

-    // NB: this is currently only implemented by wxMSW and wxUniv so far and
-    //     simply asserts in the other ports
+    // NB: this is currently only implemented properly for wxMSW, wxGTK and
+    //     wxUniv and doesn't behave correctly in the presence of scrollbars in
+    //     the other ports

     virtual wxSize DoGetBorderSize() const;
 
     // move the window to the specified location and resize it: this is called
     virtual wxSize DoGetBorderSize() const;
 
     // move the window to the specified location and resize it: this is called


@@ -1726,7 +1800,7 @@ protected:
     static void NotifyCaptureLost();
 
 private:
     static void NotifyCaptureLost();
 
 private:

-    // recursively call our own and our children OnEnabled() when the
+    // recursively call our own and our children DoEnable() when the

     // enabled/disabled status changed because a parent window had been
     // enabled/disabled
     void NotifyWindowOnEnableChange(bool enabled);
     // enabled/disabled status changed because a parent window had been
     // enabled/disabled
     void NotifyWindowOnEnableChange(bool enabled);


@@ -1796,14 +1870,7 @@ inline void wxWindowBase::SetInitialBestSize(const wxSize& size)
 // ----------------------------------------------------------------------------
 
 // include the declaration of the platform-specific class
 // ----------------------------------------------------------------------------
 
 // include the declaration of the platform-specific class

-#if defined(__WXPALMOS__)
-    #ifdef __WXUNIVERSAL__
-        #define wxWindowNative wxWindowPalm
-    #else // !wxUniv
-        #define wxWindowPalm wxWindow
-    #endif // wxUniv/!wxUniv
-    #include "wx/palmos/window.h"
-#elif defined(__WXMSW__)
+#if defined(__WXMSW__)

     #ifdef __WXUNIVERSAL__
         #define wxWindowNative wxWindowMSW
     #else // !wxUniv
     #ifdef __WXUNIVERSAL__
         #define wxWindowNative wxWindowMSW
     #else // !wxUniv


@@ -1833,9 +1900,6 @@ inline void wxWindowBase::SetInitialBestSize(const wxSize& size)
         #define wxWindowX11 wxWindow
     #endif // wxUniv
     #include "wx/x11/window.h"
         #define wxWindowX11 wxWindow
     #endif // wxUniv
     #include "wx/x11/window.h"

-#elif defined(__WXMGL__)
-    #define wxWindowNative wxWindowMGL
-    #include "wx/mgl/window.h"

 #elif defined(__WXDFB__)
     #define wxWindowNative wxWindowDFB
     #include "wx/dfb/window.h"
 #elif defined(__WXDFB__)
     #define wxWindowNative wxWindowDFB
     #include "wx/dfb/window.h"