remove unused variable assignment, closes #14928

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

diff --git a/include/wx/gtk/window.h b/include/wx/gtk/window.h
index f3639f2c8c3cdf70270253236e5ad657d6d55298..4e4185787bfdd7f92b43bf6e17386bd420f7aa36 100644 (file)
--- a/include/wx/gtk/window.h
+++ b/include/wx/gtk/window.h
@@ -12,12 +12,27 @@
 
 #include "wx/dynarray.h"
 
 
 #include "wx/dynarray.h"
 

+#ifdef __WXGTK3__
+    typedef struct _cairo cairo_t;
+    typedef struct _GtkStyleProvider GtkStyleProvider;
+    #define WXUNUSED_IN_GTK3(x)
+#else
+    #define WXUNUSED_IN_GTK3(x) x
+#endif
+

 // 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);
 
 // 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 (*wxGTKCallback)();
+
+}
+

 //-----------------------------------------------------------------------------
 // wxWindowGTK
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // wxWindowGTK
 //-----------------------------------------------------------------------------


@@ -45,18 +60,11 @@ public:
     // implement base class (pure) virtual methods
     // -------------------------------------------
 
     // implement base class (pure) virtual methods
     // -------------------------------------------
 

-    virtual void SetLabel(const wxString& WXUNUSED(label)) { }
-    virtual wxString GetLabel() const { return wxEmptyString; }
-
-    virtual bool Destroy();
-

     virtual void Raise();
     virtual void Lower();
 
     virtual bool Show( bool show = true );
 
     virtual void Raise();
     virtual void Lower();
 
     virtual bool Show( bool show = true );
 

-    virtual void SetWindowStyleFlag( long style );
-

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


@@ -79,6 +87,7 @@ public:
     virtual bool SetFont( const wxFont &font );
 
     virtual bool SetBackgroundStyle(wxBackgroundStyle style) ;
     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;


@@ -114,6 +123,10 @@ public:
     void SetDoubleBuffered(bool on);
     virtual bool IsDoubleBuffered() const;
 
     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
     // --------------
 


@@ -133,12 +146,13 @@ public:
     // Internal addition of child windows
     void DoAddChild(wxWindowGTK *child);
 
     // Internal addition of child windows
     void DoAddChild(wxWindowGTK *child);
 

-    // This methods sends wxPaintEvents to the window. It reads the
-    // update region, breaks it up into rects and sends an event
-    // for each rect. It is also responsible for background erase
-    // events and NC paint events. It is called from "draw" and
-    // "expose" handlers as well as from ::Update()
-    void GtkSendPaintEvents();
+    // 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

 
     // The methods below are required because many native widgets
     // are composed of several subwidgets and setting a style for
 
     // The methods below are required because many native widgets
     // are composed of several subwidgets and setting a style for


@@ -186,6 +200,11 @@ public:
     void GTKHandleFocusOutNoDeferring();
     static void GTKHandleDeferredFocusOut();
 
     void GTKHandleFocusOutNoDeferring();
     static void GTKHandleDeferredFocusOut();
 

+    // Called when m_widget becomes realized. Derived classes must call the
+    // base class method if they override it.
+    virtual void GTKHandleRealized();
+    void GTKHandleUnrealize();
+

 protected:
     // for controls composed of multiple GTK widgets, return true to eliminate
     // spurious focus events if the focus changes between GTK+ children within
 protected:
     // for controls composed of multiple GTK widgets, return true to eliminate
     // spurious focus events if the focus changes between GTK+ children within


@@ -217,7 +236,7 @@ public:
 
 #if wxUSE_TOOLTIPS
     // applies tooltip to the widget (tip must be UTF-8 encoded)
 
 #if wxUSE_TOOLTIPS
     // applies tooltip to the widget (tip must be UTF-8 encoded)

-    virtual void GTKApplyToolTip( GtkTooltips *tips, const gchar *tip );
+    virtual void GTKApplyToolTip(const char* tip);

 #endif // wxUSE_TOOLTIPS
 
     // Called when a window should delay showing itself
 #endif // wxUSE_TOOLTIPS
 
     // Called when a window should delay showing itself


@@ -236,12 +255,19 @@ public:
     // 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_oldClientWidth,m_oldClientHeight;
+    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
     GtkWidget           *m_widget;          // mostly the widget seen by the rest of GTK
     GtkWidget           *m_wxwindow;        // mostly the client area as per wxWidgets
 
 
     // see the docs in src/gtk/window.cpp
     GtkWidget           *m_widget;          // mostly the widget seen by the rest of GTK
     GtkWidget           *m_wxwindow;        // mostly the client area as per wxWidgets
 

+    // label for use with GetLabelSetLabel
+    wxString             m_gtkLabel;
+

     // return true if the window is of a standard (i.e. not wxWidgets') class
     bool IsOfStandardClass() const { return m_wxwindow == NULL; }
 
     // return true if the window is of a standard (i.e. not wxWidgets') class
     bool IsOfStandardClass() const { return m_wxwindow == NULL; }
 


@@ -253,7 +279,6 @@ public:
 
     wxGtkIMData         *m_imData;
 
 
     wxGtkIMData         *m_imData;
 

-

     // indices for the arrays below
     enum ScrollDir { ScrollDir_Horz, ScrollDir_Vert, ScrollDir_Max };
 
     // indices for the arrays below
     enum ScrollDir { ScrollDir_Horz, ScrollDir_Vert, ScrollDir_Max };
 


@@ -279,10 +304,13 @@ public:
     // find the direction of the given scrollbar (must be one of ours)
     ScrollDir ScrollDirFromRange(GtkRange *range) const;
 
     // 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"
     // 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_hasVMT:1;            // set after PostCreation() is called

     bool                 m_isScrolling:1;       // dragging scrollbar thumb?
     bool                 m_clipPaintRegion:1;   // true after ScrollWindow()
     wxRegion             m_nativeUpdateRegion;  // not transformed for RTL
     bool                 m_isScrolling:1;       // dragging scrollbar thumb?
     bool                 m_clipPaintRegion:1;   // true after ScrollWindow()
     wxRegion             m_nativeUpdateRegion;  // not transformed for RTL


@@ -310,6 +338,7 @@ 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);
 
     virtual void DoMoveWindow(int x, int y, int width, int height);
     virtual void DoEnable(bool enable);
 


@@ -323,15 +352,21 @@ protected:
     virtual void DoFreeze();
     virtual void DoThaw();
 
     virtual void DoFreeze();
     virtual void DoThaw();
 

-    static void GTKFreezeWidget(GtkWidget *w);
-    static void GTKThawWidget(GtkWidget *w);
+    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 (not 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);
 
     virtual void DoMoveInTabOrder(wxWindow *win, WindowOrder move);
     virtual bool DoNavigateIn(int flags);


@@ -340,37 +375,35 @@ protected:
     // Copies m_children tab order to GTK focus chain:
     void RealizeTabOrder();
 
     // 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
     // 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. If forceStyle=true,
-    // creates empty GtkRcStyle if there are no modifications, otherwise
-    // returns NULL in such case.
-    GtkRcStyle *GTKCreateWidgetStyle(bool forceStyle = false);
+    // modified GTK style with non-standard attributes.
+    GtkRcStyle* GTKCreateWidgetStyle();
+#endif

 
 

-    // Overridden in many GTK widgets who have to handle subwidgets
-    virtual void GTKApplyWidgetStyle(bool forceStyle = false);
+    void GTKApplyWidgetStyle(bool forceStyle = false);

 
     // helper function to ease native widgets wrapping, called by
     // ApplyWidgetStyle -- override this, not ApplyWidgetStyle
     virtual void DoApplyWidgetStyle(GtkRcStyle *style);
 
 
     // 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);
 
     // sets the border of a given GtkScrolledWindow from a wx style
     static void GTKScrolledWindowSetBorder(GtkWidget* w, int style);
 

-    // set the current cursor for all GdkWindows making part of this widget
-    // (see GTKGetWindow)
+    // Connect the given function to the specified signal on m_widget.

     //
     //

-    // should be called from OnInternalIdle() if it's overridden
-    void GTKUpdateCursor();
-
-    // Return true from here if PostCreation() should connect to size_request
-    // signal: this is done by default but doesn't work for some native
-    // controls which override this function to return false
-    virtual bool GTKShouldConnectSizeRequest() const { return !IsTopLevel(); }
+    // 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:
 
     void ConstrainSize();
 
 private:

+    void Init();
+

     enum ScrollUnit { ScrollUnit_Line, ScrollUnit_Page, ScrollUnit_Max };
 
     // common part of ScrollLines() and ScrollPages() and could be used, in the
     enum ScrollUnit { ScrollUnit_Line, ScrollUnit_Page, ScrollUnit_Max };
 
     // common part of ScrollLines() and ScrollPages() and could be used, in the


@@ -381,6 +414,18 @@ private:
     bool DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units);
     virtual void AddChildGTK(wxWindowGTK* child);
 
     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);
 
     DECLARE_DYNAMIC_CLASS(wxWindowGTK)
     wxDECLARE_NO_COPY_CLASS(wxWindowGTK);