More work on getting wxLisBox events right

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

diff --git a/include/wx/gtk/window.h b/include/wx/gtk/window.h
index a0d1a66f2e65ae93d6351688854778890b176c6b..f2af094363a48456ea787459c3c71bbc001f0e53 100644 (file)
--- a/include/wx/gtk/window.h
+++ b/include/wx/gtk/window.h
@@ -7,26 +7,22 @@
 // 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)
-//-----------------------------------------------------------------------------
-
-class wxWindowGTK;
-typedef void (*wxInsertChildFunction)( wxWindowGTK*, wxWindowGTK* );
+WX_DEFINE_EXPORTED_ARRAY_PTR(GdkWindow *, wxArrayGdkWindows);

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

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

 {
 public:
     // creating the window
 {
 public:
     // creating the window


@@ -49,33 +45,41 @@ 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 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;
+
+    // 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 bool Reparent( wxWindowBase *newParent );
 
     virtual void WarpPointer(int x, int y);
 

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

                           const wxRect *rect = (const wxRect *) NULL );
     virtual void Update();
                           const wxRect *rect = (const wxRect *) NULL );
     virtual void Update();

-    virtual void Clear();
+    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,


@@ -85,41 +89,52 @@ public:
                                const wxFont *theFont = (const wxFont *) NULL)
                                const;
 
                                const wxFont *theFont = (const wxFont *) NULL)
                                const;
 

-#if wxUSE_MENUS_NATIVE
-    virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
-#endif // wxUSE_MENUS_NATIVE
-

     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
 

+    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;
+

     // implementation
     // --------------
 
     virtual WXWidget GetHandle() const { return m_widget; }
 
     // implementation
     // --------------
 
     virtual WXWidget GetHandle() const { return m_widget; }
 

-    // 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
+    // many important things are done here, this function must be called
+    // regularly

     virtual void OnInternalIdle();
 
     virtual void OnInternalIdle();
 

+    // Internal represention of Update()
+    void GtkUpdate();
+

     // For compatibility across platforms (not in event table)
     void OnIdle(wxIdleEvent& WXUNUSED(event)) {}
 
     // For compatibility across platforms (not in event table)
     void OnIdle(wxIdleEvent& WXUNUSED(event)) {}
 

-    // wxGTK-specific: called recursively by Enable,
-    // to give widgets an oppprtunity to correct their colours after they
-    // have been changed by Enable
-    virtual void OnParentEnable( bool WXUNUSED(enable) ) {}
-

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


@@ -128,7 +143,7 @@ public:
     // to class not by using virtual functions but by using
     // the m_insertCallback.
     void DoAddChild(wxWindowGTK *child);
     // 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
     // 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


@@ -139,31 +154,95 @@ public:
     // 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.
     // 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
+    // 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();
     // widget where (most of) the input goes. even tooltips have
     // to be applied to all subwidgets.
     virtual GtkWidget* GetConnectWidget();

-    virtual bool IsOwnGtkWindow( GdkWindow *window );

     void ConnectWidget( GtkWidget *widget );
 
     void ConnectWidget( GtkWidget *widget );
 

-    // Creates a new widget style if none is there
-    // and sets m_widgetStyle to this value.
-    GtkStyle *GetWidgetStyle();
-
-    // Called by SetFont() and SetXXXColour etc
-    void SetWidgetStyle();
+    // 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;
+
+    // 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;
+
+    // Map GTK widget direction of the given widget to/from wxLayoutDirection
+    static wxLayoutDirection GTKGetLayout(GtkWidget *widget);
+    static void GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir);
+
+    // 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(); }
+
+    // This is called when capture is taken from the window. It will 
+    // fire off capture lost events.
+    void GTKReleaseMouseAndNotify();
+
+    GdkWindow* GTKGetDrawingWindow() const;
+
+    bool GTKHandleFocusIn();
+    bool GTKHandleFocusOut();
+    void GTKHandleFocusOutNoDeferring();
+    static void GTKHandleDeferredFocusOut();
+
+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;

 
 

-    // Overridden in many GTK widgets who have to handle subwidgets
-    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. it indicates that
-    // the layouting functions have to be called later on
-    // (i.e. in idle time, implemented in OnInternalIdle() ).
-    void GtkUpdateSize() { m_sizeSet = FALSE; }
+    // 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; }
+
+    // Common scroll event handling code for wxWindow and wxScrollBar
+    wxEventType GetScrollEventType(GtkRange* range);

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


@@ -172,58 +251,63 @@ public:
 
     // see the docs in src/gtk/window.cpp
     GtkWidget           *m_widget;          // mostly the widget seen by the rest of GTK
 
     // 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 wxWindows
+    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;
 
 
     // this widget will be queried for GTK's focus events
     GtkWidget           *m_focusWidget;
 

-#if HAVE_XIM
-    // XIM support for wxWindows
-    GdkIC               *m_ic;
-    GdkICAttr           *m_icattr;
-#endif
+    wxGtkIMData         *m_imData;

 
 

-    // The area to be cleared (and not just refreshed)
-    wxRegion             m_clearRegion;

 
 

-    // scrolling stuff
-    GtkAdjustment       *m_hAdjust,*m_vAdjust;
-    float                m_oldHorizontalPos;
-    float                m_oldVerticalPos;
+    // 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_noExpose:1;          // wxGLCanvas has its own redrawing
     bool                 m_nativeSizeEvent:1;   // wxGLCanvas sends wxSizeEvent upon "alloc_size"

-    bool                 m_hasScrolling: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_isRadioButton:1;     // faster than IS_KIND_OF
-    bool                 m_isListBox:1;         // faster than IS_KIND_OF
-    bool                 m_isFrame:1;           // faster than IS_KIND_OF
-    bool                 m_acceptsFocus:1;      // not wxStaticBox, not wxStaticBitmap etc.
-    bool                 m_isScrolling;
-    bool                 m_clipPaintRegion;     // TRUE after ScrollWindow()
-    bool                 m_queuedFullRedraw;    // TRUE after DoMoveWindow
-
-    // These are true if the style were set before the widget was realized
-    // (typcally in the constructor) but the actual GTK style must not be set
-    // before the widget has been "realized"
-    bool                 m_delayedForegroundColour:1;
-    bool                 m_delayedBackgroundColour:1;
-
-    // Contains GTK's widgets internal information about non-default widget
-    // font and colours. we create one for each widget that gets any
-    // non-default attribute set via SetFont() or SetForegroundColour() /
-    // SetBackgroundColour().
-    GtkStyle            *m_widgetStyle;
-
+    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
+
+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.
     // 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.

-    wxInsertChildFunction  m_insertCallback;
+    typedef void (*InsertChildFunction)(wxWindowGTK*, wxWindowGTK*);
+    InsertChildFunction m_insertCallback;

 
     // implement the base class pure virtuals
     virtual void DoClientToScreen( int *x, int *y ) const;
 
     // implement the base class pure virtuals
     virtual void DoClientToScreen( int *x, int *y ) const;


@@ -236,22 +320,74 @@ public:
                            int sizeFlags = wxSIZE_AUTO);
     virtual void DoSetClientSize(int width, int height);
     virtual void DoMoveWindow(int x, int y, 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 );
+    virtual void DoPopupMenuUpdateUI(wxMenu* menu);
+#endif // wxUSE_MENUS_NATIVE

 
     virtual void DoCaptureMouse();
     virtual void DoReleaseMouse();
 
 
     virtual void DoCaptureMouse();
     virtual void DoReleaseMouse();
 

+    virtual void DoFreeze();
+    virtual void DoThaw();
+
+    static void GTKFreezeWidget(GtkWidget *w);
+    static void GTKThawWidget(GtkWidget *w);
+

 #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:

+    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)
 };
 
     DECLARE_DYNAMIC_CLASS(wxWindowGTK)
     DECLARE_NO_COPY_CLASS(wxWindowGTK)
 };
 

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