check that the version of __sync_sub_and_fetch that returns a value is supported...

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

diff --git a/include/wx/gtk/window.h b/include/wx/gtk/window.h
index 76fed1e089c9b0a1cfdce47751b334560a4373a8..5d751165ecf24b8643141ef35c6bb9bdf45f4856 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:          $Id$


@@ -7,76 +7,79 @@
 // 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
-#endif
+// helper structure that holds class that holds GtkIMContext object and
+// some additional data needed for key events processing
+struct wxGtkIMData;

 
 

-//-----------------------------------------------------------------------------
-// callback definition for inserting a window (internal)
-//-----------------------------------------------------------------------------
-
-typedef void (*wxInsertChildFunction)( wxWindow*, wxWindow* );
+WX_DEFINE_EXPORTED_ARRAY_PTR(GdkWindow *, wxArrayGdkWindows);

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

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

     virtual bool Destroy();
 
     virtual void Raise();
     virtual void Lower();
 
     virtual bool Destroy();
 
     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 void SetWindowStyleFlag( long style );

 
     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 int GetCharHeight() const;
     virtual int GetCharWidth() const;
     virtual void GetTextExtent(const wxString& string,
     virtual int GetCharHeight() const;
     virtual int GetCharWidth() const;
     virtual void GetTextExtent(const wxString& string,


@@ -86,130 +89,230 @@ public:
                                const wxFont *theFont = (const wxFont *) NULL)
                                const;
 
                                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,
                                const wxRect* rect = (wxRect *) NULL );
     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 );

+    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
 

-    // implementation
-    // --------------
+    virtual void AddChild( wxWindowBase *child );
+    virtual void RemoveChild( wxWindowBase *child );

 
 

-    // wxWindows callbacks
-    void OnKeyDown( wxKeyEvent &event );
+    virtual void SetLayoutDirection(wxLayoutDirection dir);
+    virtual wxLayoutDirection GetLayoutDirection() const;
+    virtual wxCoord AdjustForLayoutDirection(wxCoord x,
+                                             wxCoord width,
+                                             wxCoord widthTotal) const;

 
 

-    // simple accessors
-    bool HasVMT() const { return m_hasVMT; }
+    virtual bool DoIsExposed( int x, int y ) const;
+    virtual bool DoIsExposed( int x, int y, int w, int h ) const;

 
 

-    int GetX() const { return m_x; }
-    int GetY() const { return m_y; }
-    int GetWidth() const { return m_width; }
-    int GetHeight() const { return m_height; }
+    // currently wxGTK2-only
+    void SetDoubleBuffered(bool on);
+    virtual bool IsDoubleBuffered() const;
+
+    // implementation
+    // --------------

 
 

-    GtkWidget *GetWxWindow() const { return m_wxwindow; }
-    GtkWidget *GetWidget() const { return GetHandle(); }
+    virtual WXWidget GetHandle() const { return m_widget; }

 
 

-    GtkAdjustment *GetHAdjust() const { return m_hAdjust; }
-    GtkAdjustment *GetVAdjust() const { return m_vAdjust; }
+    // many important things are done here, this function must be called
+    // regularly
+    virtual void OnInternalIdle();

 
 

-    float GetOldHorizontalPos() const { return m_oldHorizontalPos; }
-    float GetOldVerticalPos() const { return m_oldVerticalPos; }
+    // Internal represention of Update()
+    void GtkUpdate();

 
 

-    void SetOldHorizontalPos(float fpos) { m_oldHorizontalPos = fpos; }
-    void SetOldVerticalPos(float fpos) { m_oldVerticalPos = fpos; }
+    // For compatibility across platforms (not in event table)
+    void OnIdle(wxIdleEvent& WXUNUSED(event)) {}

 
 

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

 
 

-    // also sets the global flag
-    void SetScrolling(bool scroll);
+    // Internal addition of child windows. differs from class
+    // to class not by using virtual functions but by using
+    // the m_insertCallback.
+    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();
+
+    // 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 HasScrolling() const { return m_hasScrolling; }
-    bool IsScrolling() const { return m_isScrolling; }
-    bool IsStaticBox() const { return m_isStaticBox; }
+    // 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;

 
 

-    /* 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 does GetEventHandler()->ProcessEvent()
+    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();
+    // 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(); }

 
 

-    void InsertChild(wxWindow *child) { (*m_insertCallback)(this, child); }
-    void DoAddChild(wxWindow *child) { AddChild(child); InsertChild(child); }
+    // This is called when capture is taken from the window. It will 
+    // fire off capture lost events.
+    void GTKReleaseMouseAndNotify();

 
 

-    /* 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. */
+    GdkWindow* GTKGetDrawingWindow() const;

 
 

-    virtual GtkWidget* GetConnectWidget();
-    virtual bool IsOwnGtkWindow( GdkWindow *window );
-    void ConnectWidget( GtkWidget *widget );
+protected:
+    // 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;
+
+    // Set the focus to this window if its setting was delayed because the
+    // widget hadn't been realized when SetFocus() was called
+    //
+    // Return true if focus was set to us, false if nothing was done
+    bool GTKSetDelayedFocusIfNeeded();

 
 

-    GtkStyle *GetWidgetStyle();
-    void SetWidgetStyle();
-    virtual void ApplyWidgetStyle();
+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 ApplyToolTip( GtkTooltips *tips, const gchar *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. This partly mimmicks defered
+    // sizing under MSW.
+    void GtkShowOnIdle() { m_showOnIdle = true; }
+
+    // This is called from the various OnInternalIdle methods
+    bool GtkShowFromOnIdle();
+
+    // fix up the mouse event coords, used by wxListBox only so far
+    virtual void FixUpMouseEvent(GtkWidget * WXUNUSED(widget),
+                                 wxCoord& WXUNUSED(x),
+                                 wxCoord& WXUNUSED(y)) { }
+
+    // is this window transparent for the mouse events (as wxStaticBox is)?
+    virtual bool IsTransparentForMouse() const { return false; }
+
+    // is this a radiobutton (used by radiobutton code itself only)?
+    virtual bool IsRadioButton() const { return false; }
+
+    // Common scroll event handling code for wxWindow and wxScrollBar
+    wxEventType GetScrollEventType(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_oldClientWidth,m_oldClientHeight;

 
     // 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
+
+    // return true if the window is of a standard (i.e. not wxWidgets') class
+    bool IsOfStandardClass() const { return m_wxwindow == NULL; }
+
+    // this widget will be queried for GTK's focus events
+    GtkWidget           *m_focusWidget;
+
+    wxGtkIMData         *m_imData;

 
 

-    // scrolling stuff
-    GtkAdjustment       *m_hAdjust,*m_vAdjust;
-    float                m_oldHorizontalPos,
-                         m_oldVerticalPos;
-    GdkGC               *m_scrollGC;
+
+    // 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;

 
     // extra (wxGTK-specific) flags
 
     // extra (wxGTK-specific) flags

-    bool                 m_needParent:1;    /* ! wxFrame, wxDialog, wxNotebookPage ?  */
+    bool                 m_noExpose:1;          // wxGLCanvas has its own redrawing
+    bool                 m_nativeSizeEvent:1;   // wxGLCanvas sends wxSizeEvent upon "alloc_size"

     bool                 m_hasScrolling:1;
     bool                 m_hasScrolling:1;

-    bool                 m_isScrolling:1;

     bool                 m_hasVMT: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.  */
+    bool                 m_hasFocus:1;          // true if == FindFocus()
+    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_needsStyleChange:1;  // May not be able to change
+                                                // background style until OnIdle
+    bool                 m_mouseButtonDown:1;
+
+    bool                 m_showOnIdle:1;        // postpone showing the window until idle

 
 

-    GtkStyle            *m_widgetStyle;
-
-    wxInsertChildFunction  m_insertCallback;
+protected:
+    // C++ has no virtual methods in the constrcutor of any class but we need
+    // different methods of inserting a child window into a wxFrame,
+    // wxMDIFrame, wxNotebook etc. this is the callback that will get used.
+    typedef void (*InsertChildFunction)(wxWindowGTK*, wxWindowGTK*);
+    InsertChildFunction m_insertCallback;

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

+    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 +320,70 @@ 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 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();

 
 #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)
+    // common part of all ctors (not virtual because called from ctor)

     void Init();
 
     void Init();
 

+    virtual void DoMoveInTabOrder(wxWindow *win, WindowOrder move);
+    virtual bool DoNavigateIn(int flags);
+
+
+    // Copies m_children tab order to GTK focus chain:
+    void RealizeTabOrder();
+
+    // 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 *CreateWidgetStyle(bool forceStyle = false);
+
+    // Overridden in many GTK widgets who have to handle subwidgets
+    virtual void ApplyWidgetStyle(bool forceStyle = false);
+
+    // helper function to ease native widgets wrapping, called by
+    // ApplyWidgetStyle -- override this, not ApplyWidgetStyle
+    virtual void DoApplyWidgetStyle(GtkRcStyle *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)
+    //
+    // should be called from OnInternalIdle() if it's overridden
+    void GTKUpdateCursor();
+
+    void ConstrainSize();
+

 private:
 private:

-    DECLARE_EVENT_TABLE()
+    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);
+
+
+    DECLARE_DYNAMIC_CLASS(wxWindowGTK)
+    DECLARE_NO_COPY_CLASS(wxWindowGTK)

 };
 
 };
 

-#endif // __GTKWINDOWH__
+extern WXDLLIMPEXP_CORE wxWindow *wxFindFocusedChild(wxWindowGTK *win);
+
+#endif // _WX_GTK_WINDOW_H_