No changes, just remove unneeded variable initialization in carbon listctrl.

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

diff --git a/include/wx/gtk/window.h b/include/wx/gtk/window.h
index 76fed1e089c9b0a1cfdce47751b334560a4373a8..29b7311b705386223ca8e79ca353d25c7a23ab75 100644 (file)
--- a/include/wx/gtk/window.h
+++ b/include/wx/gtk/window.h
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        window.h
+// Name:        wx/gtk/window.h

 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$


@@ -7,209 +7,323 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

+#ifndef _WX_GTK_WINDOW_H_
+#define _WX_GTK_WINDOW_H_

 
 

-#ifndef __GTKWINDOWH__
-#define __GTKWINDOWH__
+#include "wx/dynarray.h"

 
 

-#ifdef __GNUG__
-    #pragma interface
+#ifdef __WXGTK3__
+    typedef struct _cairo cairo_t;
+    typedef struct _GtkStyleProvider GtkStyleProvider;
+    #define WXUNUSED_IN_GTK3(x)
+#else
+    #define WXUNUSED_IN_GTK3(x) x

 #endif
 
 #endif
 

-//-----------------------------------------------------------------------------
-// callback definition for inserting a window (internal)
-//-----------------------------------------------------------------------------
+// helper structure that holds class that holds GtkIMContext object and
+// some additional data needed for key events processing
+struct wxGtkIMData;
+
+WX_DEFINE_EXPORTED_ARRAY_PTR(GdkWindow *, wxArrayGdkWindows);
+
+extern "C"
+{

 
 

-typedef void (*wxInsertChildFunction)( wxWindow*, wxWindow* );
+typedef void (*wxGTKCallback)();
+
+}

 
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------

-// wxWindow
+// wxWindowGTK

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-class wxWindow : public wxWindowBase
+class WXDLLIMPEXP_CORE wxWindowGTK : public wxWindowBase

 {
 {

-    DECLARE_DYNAMIC_CLASS(wxWindow)
-

 public:
     // creating the window
     // -------------------
 public:
     // creating the window
     // -------------------

-    wxWindow();
-    wxWindow(wxWindow *parent,
-             wxWindowID id,
-             const wxPoint& pos = wxDefaultPosition,
-             const wxSize& size = wxDefaultSize,
-             long style = 0,
-             const wxString& name = wxPanelNameStr);
+    wxWindowGTK();
+    wxWindowGTK(wxWindow *parent,
+                wxWindowID id,
+                const wxPoint& pos = wxDefaultPosition,
+                const wxSize& size = wxDefaultSize,
+                long style = 0,
+                const wxString& name = wxPanelNameStr);

     bool Create(wxWindow *parent,
                 wxWindowID id,
                 const wxPoint& pos = wxDefaultPosition,
                 const wxSize& size = wxDefaultSize,
                 long style = 0,
                 const wxString& name = wxPanelNameStr);
     bool Create(wxWindow *parent,
                 wxWindowID id,
                 const wxPoint& pos = wxDefaultPosition,
                 const wxSize& size = wxDefaultSize,
                 long style = 0,
                 const wxString& name = wxPanelNameStr);

-    virtual ~wxWindow();
+    virtual ~wxWindowGTK();

 
     // implement base class (pure) virtual methods
     // -------------------------------------------
 
     // implement base class (pure) virtual methods
     // -------------------------------------------

-    virtual bool Destroy();

 
     virtual void Raise();
     virtual void Lower();
 
 
     virtual void Raise();
     virtual void Lower();
 

-    virtual bool Show( bool show = TRUE );
-    virtual bool Enable( bool enable = TRUE );
+    virtual bool Show( bool show = true );

 
     virtual bool IsRetained() const;
 
     virtual void SetFocus();
 
     virtual bool IsRetained() const;
 
     virtual void SetFocus();

-    virtual bool AcceptsFocus() const;

 
 

-    virtual bool Reparent( wxWindow *newParent );
+    // hint from wx to native GTK+ tab traversal code
+    virtual void SetCanFocus(bool canFocus);
+
+    virtual bool Reparent( wxWindowBase *newParent );

 
     virtual void WarpPointer(int x, int y);
 
     virtual void WarpPointer(int x, int y);

-    virtual void CaptureMouse();
-    virtual void ReleaseMouse();

 
 

-    virtual void Refresh( bool eraseBackground = TRUE,
+    virtual void Refresh( bool eraseBackground = true,

                           const wxRect *rect = (const wxRect *) NULL );
                           const wxRect *rect = (const wxRect *) NULL );

-    virtual void Clear();
+    virtual void Update();
+    virtual void ClearBackground();

 
     virtual bool SetBackgroundColour( const wxColour &colour );
     virtual bool SetForegroundColour( const wxColour &colour );
     virtual bool SetCursor( const wxCursor &cursor );
     virtual bool SetFont( const wxFont &font );
 
 
     virtual bool SetBackgroundColour( const wxColour &colour );
     virtual bool SetForegroundColour( const wxColour &colour );
     virtual bool SetCursor( const wxCursor &cursor );
     virtual bool SetFont( const wxFont &font );
 

+    virtual bool SetBackgroundStyle(wxBackgroundStyle style) ;
+    virtual bool IsTransparentBackgroundSupported(wxString* reason = NULL) const;
+

     virtual int GetCharHeight() const;
     virtual int GetCharWidth() const;
     virtual int GetCharHeight() const;
     virtual int GetCharWidth() const;

-    virtual void GetTextExtent(const wxString& string,
-                               int *x, int *y,
-                               int *descent = (int *) NULL,
-                               int *externalLeading = (int *) NULL,
-                               const wxFont *theFont = (const wxFont *) NULL)
-                               const;
-
-    virtual void ClientToScreen( int *x, int *y ) const;
-    virtual void ScreenToClient( int *x, int *y ) const;
-
-    virtual bool PopupMenu( wxMenu *menu, int x, int y );

 
     virtual void SetScrollbar( int orient, int pos, int thumbVisible,
 
     virtual void SetScrollbar( int orient, int pos, int thumbVisible,

-                               int range, bool refresh = TRUE );
-    virtual void SetScrollPos( int orient, int pos, bool refresh = TRUE );
+                               int range, bool refresh = true );
+    virtual void SetScrollPos( int orient, int pos, bool refresh = true );

     virtual int GetScrollPos( int orient ) const;
     virtual int GetScrollThumb( int orient ) const;
     virtual int GetScrollRange( int orient ) const;
     virtual void ScrollWindow( int dx, int dy,
     virtual int GetScrollPos( int orient ) const;
     virtual int GetScrollThumb( int orient ) const;
     virtual int GetScrollRange( int orient ) const;
     virtual void ScrollWindow( int dx, int dy,

-                               const wxRect* rect = (wxRect *) NULL );
+                               const wxRect* rect = NULL );
+    virtual bool ScrollLines(int lines);
+    virtual bool ScrollPages(int pages);

 
 #if wxUSE_DRAG_AND_DROP
     virtual void SetDropTarget( wxDropTarget *dropTarget );
 #endif // wxUSE_DRAG_AND_DROP
 
 
 #if wxUSE_DRAG_AND_DROP
     virtual void SetDropTarget( wxDropTarget *dropTarget );
 #endif // wxUSE_DRAG_AND_DROP
 

+    virtual void AddChild( wxWindowBase *child );
+    virtual void RemoveChild( wxWindowBase *child );
+
+    virtual void SetLayoutDirection(wxLayoutDirection dir);
+    virtual wxLayoutDirection GetLayoutDirection() const;
+    virtual wxCoord AdjustForLayoutDirection(wxCoord x,
+                                             wxCoord width,
+                                             wxCoord widthTotal) const;
+
+    virtual bool DoIsExposed( int x, int y ) const;
+    virtual bool DoIsExposed( int x, int y, int w, int h ) const;
+
+    // currently wxGTK2-only
+    void SetDoubleBuffered(bool on);
+    virtual bool IsDoubleBuffered() const;
+
+    // SetLabel(), which does nothing in wxWindow
+    virtual void SetLabel(const wxString& label) { m_gtkLabel = label; }
+    virtual wxString GetLabel() const            { return m_gtkLabel; }
+

     // implementation
     // --------------
 
     // implementation
     // --------------
 

-    // wxWindows callbacks
-    void OnKeyDown( wxKeyEvent &event );
+    virtual WXWidget GetHandle() const { return m_widget; }

 
 

-    // simple accessors
-    bool HasVMT() const { return m_hasVMT; }
+    // many important things are done here, this function must be called
+    // regularly
+    virtual void OnInternalIdle();

 
 

-    int GetX() const { return m_x; }
-    int GetY() const { return m_y; }
-    int GetWidth() const { return m_width; }
-    int GetHeight() const { return m_height; }
+    // For compatibility across platforms (not in event table)
+    void OnIdle(wxIdleEvent& WXUNUSED(event)) {}

 
 

-    GtkWidget *GetWxWindow() const { return m_wxwindow; }
-    GtkWidget *GetWidget() const { return GetHandle(); }
+    // Used by all window classes in the widget creation process.
+    bool PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size );
+    void PostCreation();

 
 

-    GtkAdjustment *GetHAdjust() const { return m_hAdjust; }
-    GtkAdjustment *GetVAdjust() const { return m_vAdjust; }
+    // Internal addition of child windows
+    void DoAddChild(wxWindowGTK *child);

 
 

-    float GetOldHorizontalPos() const { return m_oldHorizontalPos; }
-    float GetOldVerticalPos() const { return m_oldVerticalPos; }
+    // This method sends wxPaintEvents to the window.
+    // It is also responsible for background erase events.
+#ifdef __WXGTK3__
+    void GTKSendPaintEvents(cairo_t* cr);
+#else
+    void GTKSendPaintEvents(const GdkRegion* region);
+#endif

 
 

-    void SetOldHorizontalPos(float fpos) { m_oldHorizontalPos = fpos; }
-    void SetOldVerticalPos(float fpos) { m_oldVerticalPos = fpos; }
+    // The methods below are required because many native widgets
+    // are composed of several subwidgets and setting a style for
+    // the widget means setting it for all subwidgets as well.
+    // also, it is not clear which native widget is the top
+    // widget where (most of) the input goes. even tooltips have
+    // to be applied to all subwidgets.
+    virtual GtkWidget* GetConnectWidget();
+    void ConnectWidget( GtkWidget *widget );

 
 

-    bool IsSizeSet() const { return m_sizeSet; }
+    // Called from several event handlers, if it returns true or false, the
+    // same value should be immediately returned by the handler without doing
+    // anything else. If it returns -1, the handler should continue as usual
+    int GTKCallbackCommonPrologue(struct _GdkEventAny *event) const;

 
 

-    // also sets the global flag
-    void SetScrolling(bool scroll);
+    // Simplified form of GTKCallbackCommonPrologue() which can be used from
+    // GTK callbacks without return value to check if the event should be
+    // ignored: if this returns true, the event shouldn't be handled
+    bool GTKShouldIgnoreEvent() const;

 
 

-    bool HasScrolling() const { return m_hasScrolling; }
-    bool IsScrolling() const { return m_isScrolling; }
-    bool IsStaticBox() const { return m_isStaticBox; }

 
 

-    /* I don't want users to override what's done in idle so everything that
-       has to be done in idle time in order for wxGTK to work is done in
-       OnInternalIdle */
-    virtual void OnInternalIdle();
+    // override this if some events should never be consumed by wxWidgets but
+    // but have to be left for the native control
+    //
+    // base version just calls HandleWindowEvent()
+    virtual bool GTKProcessEvent(wxEvent& event) const;

 
 

-    /* For compatibility across platforms (not in event table) */
-    void OnIdle(wxIdleEvent& WXUNUSED(event)) {};
+    // Map GTK widget direction of the given widget to/from wxLayoutDirection
+    static wxLayoutDirection GTKGetLayout(GtkWidget *widget);
+    static void GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir);

 
 

-    /* used by all classes in the widget creation process */
-    void PreCreation( wxWindow *parent, wxWindowID id, const wxPoint &pos,
-            const wxSize &size, long style, const wxString &name );
-    void PostCreation();
+    // This is called when capture is taken from the window. It will
+    // fire off capture lost events.
+    void GTKReleaseMouseAndNotify();

 
 

-    void InsertChild(wxWindow *child) { (*m_insertCallback)(this, child); }
-    void DoAddChild(wxWindow *child) { AddChild(child); InsertChild(child); }
+    GdkWindow* GTKGetDrawingWindow() const;

 
 

-    /* the methods below are required because many native widgets
-       are composed of several subwidgets and setting a style for
-       the widget means setting it for all subwidgets as well.
-       also, it is nor clear, which native widget is the top
-       widget where (most of) the input goes. even tooltips have
-       to be applied to all subwidgets. */
+    bool GTKHandleFocusIn();
+    bool GTKHandleFocusOut();
+    void GTKHandleFocusOutNoDeferring();
+    static void GTKHandleDeferredFocusOut();

 
 

-    virtual GtkWidget* GetConnectWidget();
-    virtual bool IsOwnGtkWindow( GdkWindow *window );
-    void ConnectWidget( GtkWidget *widget );
+    // Called when m_widget becomes realized. Derived classes must call the
+    // base class method if they override it.
+    virtual void GTKHandleRealized();
+    void GTKHandleUnrealize();

 
 

-    GtkStyle *GetWidgetStyle();
-    void SetWidgetStyle();
-    virtual void ApplyWidgetStyle();
+protected:
+    // for controls composed of multiple GTK widgets, return true to eliminate
+    // spurious focus events if the focus changes between GTK+ children within
+    // the same wxWindow
+    virtual bool GTKNeedsToFilterSameWindowFocus() const { return false; }
+
+    // Override GTKWidgetNeedsMnemonic and return true if your
+    // needs to set its mnemonic widget, such as for a
+    // GtkLabel for wxStaticText, then do the actual
+    // setting of the widget inside GTKWidgetDoSetMnemonic
+    virtual bool GTKWidgetNeedsMnemonic() const;
+    virtual void GTKWidgetDoSetMnemonic(GtkWidget* w);
+
+    // Get the GdkWindows making part of this window: usually there will be
+    // only one of them in which case it should be returned directly by this
+    // function. If there is more than one GdkWindow (can be the case for
+    // composite widgets), return NULL and fill in the provided array
+    //
+    // This is not pure virtual for backwards compatibility but almost
+    // certainly must be overridden in any wxControl-derived class!
+    virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const;
+
+    // Check if the given window makes part of this widget
+    bool GTKIsOwnWindow(GdkWindow *window) const;
+
+public:
+    // Returns the default context which usually is anti-aliased
+    PangoContext   *GTKGetPangoDefaultContext();

 
 #if wxUSE_TOOLTIPS
 
 #if wxUSE_TOOLTIPS

-    virtual void ApplyToolTip( GtkTooltips *tips, const wxChar *tip );
+    // applies tooltip to the widget (tip must be UTF-8 encoded)
+    virtual void GTKApplyToolTip(const char* tip);

 #endif // wxUSE_TOOLTIPS
 
 #endif // wxUSE_TOOLTIPS
 

-    // called from GTK signales handlers
-    void UpdateSize() { m_sizeSet = FALSE; }
-    void InternalSetPosition(int x, int y) { m_x = x; m_y = y; }
-    void InternalSetSize(int w, int h)
-        { m_width = w; m_height = h; UpdateSize(); }
+    // Called when a window should delay showing itself
+    // until idle time used in Reparent().
+    void GTKShowOnIdle() { m_showOnIdle = true; }
+
+    // This is called from the various OnInternalIdle methods
+    bool GTKShowFromOnIdle();
+
+    // is this window transparent for the mouse events (as wxStaticBox is)?
+    virtual bool GTKIsTransparentForMouse() const { return false; }
+
+    // Common scroll event handling code for wxWindow and wxScrollBar
+    wxEventType GTKGetScrollEventType(GtkRange* range);

 
 

-protected:

     // position and size of the window
     int                  m_x, m_y;
     int                  m_width, m_height;
     // position and size of the window
     int                  m_x, m_y;
     int                  m_width, m_height;

+    int m_clientWidth, m_clientHeight;
+    // Whether the client size variables above are known to be correct
+    // (because they have been validated by a size-allocate) and should
+    // be used to report client size
+    bool m_useCachedClientSize;

 
     // see the docs in src/gtk/window.cpp
 
     // see the docs in src/gtk/window.cpp

-    GtkWidget           *m_wxwindow;
+    GtkWidget           *m_widget;          // mostly the widget seen by the rest of GTK
+    GtkWidget           *m_wxwindow;        // mostly the client area as per wxWidgets

 
 

-    // scrolling stuff
-    GtkAdjustment       *m_hAdjust,*m_vAdjust;
-    float                m_oldHorizontalPos,
-                         m_oldVerticalPos;
-    GdkGC               *m_scrollGC;
+    // label for use with GetLabelSetLabel
+    wxString             m_gtkLabel;

 
 

-    // extra (wxGTK-specific) flags
-    bool                 m_needParent:1;    /* ! wxFrame, wxDialog, wxNotebookPage ?  */
-    bool                 m_hasScrolling:1;
-    bool                 m_isScrolling:1;
-    bool                 m_hasVMT:1;
-    bool                 m_sizeSet:1;
-    bool                 m_resizing:1;
-    bool                 m_isStaticBox:1;   /* faster than IS_KIND_OF */
-    bool                 m_isFrame:1;       /* faster than IS_KIND_OF */
-    bool                 m_acceptsFocus:1;  /* ! wxStaticBox etc.  */
+    // return true if the window is of a standard (i.e. not wxWidgets') class
+    bool IsOfStandardClass() const { return m_wxwindow == NULL; }

 
 

-    GtkStyle            *m_widgetStyle;
+    // this widget will be queried for GTK's focus events
+    GtkWidget           *m_focusWidget;

 
 

-    wxInsertChildFunction  m_insertCallback;
+    void GTKDisableFocusOutEvent();
+    void GTKEnableFocusOutEvent();

 
 

+    wxGtkIMData         *m_imData;
+
+    // indices for the arrays below
+    enum ScrollDir { ScrollDir_Horz, ScrollDir_Vert, ScrollDir_Max };
+
+    // horizontal/vertical scroll bar
+    GtkRange* m_scrollBar[ScrollDir_Max];
+
+    // horizontal/vertical scroll position
+    double m_scrollPos[ScrollDir_Max];
+
+    // return the scroll direction index corresponding to the given orientation
+    // (which is wxVERTICAL or wxHORIZONTAL)
+    static ScrollDir ScrollDirFromOrient(int orient)
+    {
+        return orient == wxVERTICAL ? ScrollDir_Vert : ScrollDir_Horz;
+    }
+
+    // return the orientation for the given scrolling direction
+    static int OrientFromScrollDir(ScrollDir dir)
+    {
+        return dir == ScrollDir_Horz ? wxHORIZONTAL : wxVERTICAL;
+    }
+
+    // find the direction of the given scrollbar (must be one of ours)
+    ScrollDir ScrollDirFromRange(GtkRange *range) const;
+
+    // set the current cursor for all GdkWindows making part of this widget
+    // (see GTKGetWindow)
+    void GTKUpdateCursor(bool update_self = true, bool recurse = true);
+
+    // extra (wxGTK-specific) flags
+    bool                 m_noExpose:1;          // wxGLCanvas has its own redrawing
+    bool                 m_nativeSizeEvent:1;   // wxGLCanvas sends wxSizeEvent upon "alloc_size"
+    bool                 m_isScrolling:1;       // dragging scrollbar thumb?
+    bool                 m_clipPaintRegion:1;   // true after ScrollWindow()
+    wxRegion             m_nativeUpdateRegion;  // not transformed for RTL
+    bool                 m_dirtyTabOrder:1;     // tab order changed, GTK focus
+                                                // chain needs update
+    bool                 m_mouseButtonDown:1;
+
+    bool                 m_showOnIdle:1;        // postpone showing the window until idle
+
+protected:

     // implement the base class pure virtuals
     // implement the base class pure virtuals

+    virtual void DoGetTextExtent(const wxString& string,
+                                 int *x, int *y,
+                                 int *descent = NULL,
+                                 int *externalLeading = NULL,
+                                 const wxFont *font = NULL) const;
+    virtual void DoClientToScreen( int *x, int *y ) const;
+    virtual void DoScreenToClient( int *x, int *y ) const;

     virtual void DoGetPosition( int *x, int *y ) const;
     virtual void DoGetSize( int *width, int *height ) const;
     virtual void DoGetClientSize( int *width, int *height ) const;
     virtual void DoGetPosition( int *x, int *y ) const;
     virtual void DoGetSize( int *width, int *height ) const;
     virtual void DoGetClientSize( int *width, int *height ) const;


@@ -217,16 +331,102 @@ protected:
                            int width, int height,
                            int sizeFlags = wxSIZE_AUTO);
     virtual void DoSetClientSize(int width, int height);
                            int width, int height,
                            int sizeFlags = wxSIZE_AUTO);
     virtual void DoSetClientSize(int width, int height);

+    virtual wxSize DoGetBorderSize() const;
+    virtual void DoMoveWindow(int x, int y, int width, int height);
+    virtual void DoEnable(bool enable);
+
+#if wxUSE_MENUS_NATIVE
+    virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
+#endif // wxUSE_MENUS_NATIVE
+
+    virtual void DoCaptureMouse();
+    virtual void DoReleaseMouse();
+
+    virtual void DoFreeze();
+    virtual void DoThaw();
+
+    void GTKFreezeWidget(GtkWidget *w);
+    void GTKThawWidget(GtkWidget *w);
+    void GTKDisconnect(void* instance);

 
 #if wxUSE_TOOLTIPS
     virtual void DoSetToolTip( wxToolTip *tip );
 #endif // wxUSE_TOOLTIPS
 
 
 #if wxUSE_TOOLTIPS
     virtual void DoSetToolTip( wxToolTip *tip );
 #endif // wxUSE_TOOLTIPS
 

-    // common part of all ctors (can't be virtual because called from ctor)
-    void Init();
+    // Create a GtkScrolledWindow containing the given widget (usually
+    // m_wxwindow but not necessarily) and assigns it to m_widget. Also shows
+    // the widget passed to it.
+    //
+    // Can be only called if we have either wxHSCROLL or wxVSCROLL in our
+    // style.
+    void GTKCreateScrolledWindowWith(GtkWidget* view);
+
+    virtual void DoMoveInTabOrder(wxWindow *win, WindowOrder move);
+    virtual bool DoNavigateIn(int flags);
+
+
+    // Copies m_children tab order to GTK focus chain:
+    void RealizeTabOrder();
+
+#ifndef __WXGTK3__
+    // Called by ApplyWidgetStyle (which is called by SetFont() and
+    // SetXXXColour etc to apply style changed to native widgets) to create
+    // modified GTK style with non-standard attributes.
+    GtkRcStyle* GTKCreateWidgetStyle();
+#endif
+
+    void GTKApplyWidgetStyle(bool forceStyle = false);
+
+    // helper function to ease native widgets wrapping, called by
+    // ApplyWidgetStyle -- override this, not ApplyWidgetStyle
+    virtual void DoApplyWidgetStyle(GtkRcStyle *style);
+
+    void GTKApplyStyle(GtkWidget* widget, GtkRcStyle* style);
+
+    // sets the border of a given GtkScrolledWindow from a wx style
+    static void GTKScrolledWindowSetBorder(GtkWidget* w, int style);
+
+    // Connect the given function to the specified signal on m_widget.
+    //
+    // This is just a wrapper for g_signal_connect() and returns the handler id
+    // just as it does.
+    unsigned long GTKConnectWidget(const char *signal, wxGTKCallback callback);
+
+    void ConstrainSize();

 
 private:
 
 private:

-    DECLARE_EVENT_TABLE()
+    void Init();
+
+    // return true if this window must have a non-NULL parent, false if it can
+    // be created without parent (normally only top level windows but in wxGTK
+    // there is also the exception of wxMenuBar)
+    virtual bool GTKNeedsParent() const { return !IsTopLevel(); }
+
+    enum ScrollUnit { ScrollUnit_Line, ScrollUnit_Page, ScrollUnit_Max };
+
+    // common part of ScrollLines() and ScrollPages() and could be used, in the
+    // future, for horizontal scrolling as well
+    //
+    // return true if we scrolled, false otherwise (on error or simply if we
+    // are already at the end)
+    bool DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units);
+    virtual void AddChildGTK(wxWindowGTK* child);
+
+#ifdef __WXGTK3__
+    // paint context is stashed here so wxPaintDC can use it
+    cairo_t* m_paintContext;
+    // style provider for "background-image"
+    GtkStyleProvider* m_styleProvider;
+
+public:
+    cairo_t* GTKPaintContext() const
+    {
+        return m_paintContext;
+    }
+#endif
+
+    DECLARE_DYNAMIC_CLASS(wxWindowGTK)
+    wxDECLARE_NO_COPY_CLASS(wxWindowGTK);

 };
 
 };
 

-#endif // __GTKWINDOWH__
+#endif // _WX_GTK_WINDOW_H_