added and documented wxDir::HasFiles/SubDirs(), use the latter in wxDirDialog - it...

[wxWidgets.git] / src / gtk / scrolwin.cpp

diff --git a/src/gtk/scrolwin.cpp b/src/gtk/scrolwin.cpp
index 2de10148a00457ddeb05ed768f3544c3b4d061f9..ef89c29b5a003496f17de5075ab0e07878052637 100644 (file)
--- a/src/gtk/scrolwin.cpp
+++ b/src/gtk/scrolwin.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        generic/scrolwin.cpp
+// Name:        gtk/scrolwin.cpp

 // Purpose:     wxScrolledWindow implementation
 // Author:      Julian Smart
 // Modified by:
 // Purpose:     wxScrolledWindow implementation
 // Author:      Julian Smart
 // Modified by:


@@ -104,8 +104,8 @@ static void gtk_scrolled_window_hscroll_callback( GtkAdjustment *adjust, wxScrol
 
 static void wxInsertChildInScrolledWindow( wxWindow* parent, wxWindow* child )
 {
 
 static void wxInsertChildInScrolledWindow( wxWindow* parent, wxWindow* child )
 {

-    /* the window might have been scrolled already, do we
-       have to adapt the position */
+    // The window might have been scrolled already, do we
+    // have to adapt the position.

     GtkPizza *pizza = GTK_PIZZA(parent->m_wxwindow);
     child->m_x += pizza->xoffset;
     child->m_y += pizza->yoffset;
     GtkPizza *pizza = GTK_PIZZA(parent->m_wxwindow);
     child->m_x += pizza->xoffset;
     child->m_y += pizza->yoffset;


@@ -122,7 +122,7 @@ static void wxInsertChildInScrolledWindow( wxWindow* parent, wxWindow* child )
 // wxScrolledWindow creation
 // ----------------------------------------------------------------------------
 
 // wxScrolledWindow creation
 // ----------------------------------------------------------------------------
 

-wxScrolledWindow::wxScrolledWindow()
+void wxScrolledWindow::Init()

 {
     m_xScrollPixelsPerLine = 0;
     m_yScrollPixelsPerLine = 0;
 {
     m_xScrollPixelsPerLine = 0;
     m_yScrollPixelsPerLine = 0;


@@ -137,6 +137,7 @@ wxScrolledWindow::wxScrolledWindow()
     m_targetWindow = (wxWindow*) NULL;
     m_scaleX = 1.0;
     m_scaleY = 1.0;
     m_targetWindow = (wxWindow*) NULL;
     m_scaleX = 1.0;
     m_scaleY = 1.0;

+    m_hasScrolling = TRUE;

 }
 
 bool wxScrolledWindow::Create(wxWindow *parent,
 }
 
 bool wxScrolledWindow::Create(wxWindow *parent,


@@ -146,6 +147,8 @@ bool wxScrolledWindow::Create(wxWindow *parent,
                               long style,
                               const wxString& name)
 {
                               long style,
                               const wxString& name)
 {

+    Init();
+

     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
     {
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
     {


@@ -154,17 +157,6 @@ bool wxScrolledWindow::Create(wxWindow *parent,
     }
 
     m_insertCallback = wxInsertChildInScrolledWindow;
     }
 
     m_insertCallback = wxInsertChildInScrolledWindow;

-    
-    m_xScrollPixelsPerLine = 0;
-    m_yScrollPixelsPerLine = 0;
-    m_xScrollingEnabled = TRUE;
-    m_yScrollingEnabled = TRUE;
-    m_xScrollPosition = 0;
-    m_yScrollPosition = 0;
-    m_xScrollLines = 0;
-    m_yScrollLines = 0;
-    m_xScrollLinesPerPage = 0;
-    m_yScrollLinesPerPage = 0;

 
     m_targetWindow = this;
 
 
     m_targetWindow = this;
 


@@ -221,13 +213,9 @@ bool wxScrolledWindow::Create(wxWindow *parent,
     m_hAdjust->page_increment = 1.0;
     gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );
 
     m_hAdjust->page_increment = 1.0;
     gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );
 

-    // these handlers get notified when screen updates are required either when
-    // scrolling or when the window size (and therefore scrollbar configuration)
-    // has changed
-    gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed",
-          (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this );
-    gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed",
-          (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this );
+    // Handlers for new scrollbar values
+    GtkVConnectEvent();
+    GtkHConnectEvent();

 
     gtk_widget_show( m_wxwindow );
 
 
     gtk_widget_show( m_wxwindow );
 


@@ -241,10 +229,6 @@ bool wxScrolledWindow::Create(wxWindow *parent,
     return TRUE;
 }
 
     return TRUE;
 }
 

-wxScrolledWindow::~wxScrolledWindow()
-{
-}
-

 // ----------------------------------------------------------------------------
 // setting scrolling parameters
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // setting scrolling parameters
 // ----------------------------------------------------------------------------


@@ -263,7 +247,7 @@ void wxScrolledWindow::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY,
     m_yScrollPosition = yPos;
     m_xScrollLines = noUnitsX;
     m_yScrollLines = noUnitsY;
     m_yScrollPosition = yPos;
     m_xScrollLines = noUnitsX;
     m_yScrollLines = noUnitsY;

-    
+

     m_hAdjust->lower = 0.0;
     m_hAdjust->upper = noUnitsX;
     m_hAdjust->value = xPos;
     m_hAdjust->lower = 0.0;
     m_hAdjust->upper = noUnitsX;
     m_hAdjust->value = xPos;


@@ -275,7 +259,7 @@ void wxScrolledWindow::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY,
     m_vAdjust->value = yPos;
     m_vAdjust->step_increment = 1.0;
     m_vAdjust->page_increment = 2.0;
     m_vAdjust->value = yPos;
     m_vAdjust->step_increment = 1.0;
     m_vAdjust->page_increment = 2.0;

-    
+

     AdjustScrollbars();
 }
 
     AdjustScrollbars();
 }
 


@@ -283,20 +267,20 @@ void wxScrolledWindow::AdjustScrollbars()
 {
     int w, h;
     m_targetWindow->GetClientSize( &w, &h );
 {
     int w, h;
     m_targetWindow->GetClientSize( &w, &h );

-    
+

     if (m_xScrollPixelsPerLine == 0)
         m_hAdjust->page_size = 1.0;
     else
         m_hAdjust->page_size = (w / m_xScrollPixelsPerLine);
     if (m_xScrollPixelsPerLine == 0)
         m_hAdjust->page_size = 1.0;
     else
         m_hAdjust->page_size = (w / m_xScrollPixelsPerLine);

-        
+

     if (m_yScrollPixelsPerLine == 0)
         m_vAdjust->page_size = 1.0;
     else
         m_vAdjust->page_size = (h / m_yScrollPixelsPerLine);
     if (m_yScrollPixelsPerLine == 0)
         m_vAdjust->page_size = 1.0;
     else
         m_vAdjust->page_size = (h / m_yScrollPixelsPerLine);

-    
+

     m_xScrollLinesPerPage = (int)(m_hAdjust->page_size + 0.5);
     m_yScrollLinesPerPage = (int)(m_vAdjust->page_size + 0.5);
     m_xScrollLinesPerPage = (int)(m_hAdjust->page_size + 0.5);
     m_yScrollLinesPerPage = (int)(m_vAdjust->page_size + 0.5);

-    
+

     gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "changed" );
     gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );
 }
     gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "changed" );
     gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );
 }


@@ -401,34 +385,40 @@ void wxScrolledWindow::Scroll( int x_pos, int y_pos )
 
     if ((x_pos != -1) && (m_xScrollPixelsPerLine))
     {
 
     if ((x_pos != -1) && (m_xScrollPixelsPerLine))
     {

+        int max = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5);
+        if (max < 0) max = 0;
+        if (x_pos > max) x_pos = max;
+        if (x_pos < 0) x_pos = 0;
+

         int old_x = m_xScrollPosition;
         m_xScrollPosition = x_pos;
         m_hAdjust->value = x_pos;
         int old_x = m_xScrollPosition;
         m_xScrollPosition = x_pos;
         m_hAdjust->value = x_pos;

-        
-        wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK;
-        wxScrollWinEvent event( command, m_xScrollPosition, wxHORIZONTAL );
-        event.SetEventObject( this );
-        GetEventHandler()->ProcessEvent( event );
-    
+

         m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 );
         m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 );

-        
+
+        // Just update the scrollbar, don't send any wxWindows event
+        GtkHDisconnectEvent();

         gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" );
         gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" );

+        GtkHConnectEvent();

     }
     }

-    
+

     if ((y_pos != -1) && (m_yScrollPixelsPerLine))
     {
     if ((y_pos != -1) && (m_yScrollPixelsPerLine))
     {

+        int max = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5);
+        if (max < 0) max = 0;
+        if (y_pos > max) y_pos = max;
+        if (y_pos < 0) y_pos = 0;
+

         int old_y = m_yScrollPosition;
         m_yScrollPosition = y_pos;
         m_vAdjust->value = y_pos;
         int old_y = m_yScrollPosition;
         m_yScrollPosition = y_pos;
         m_vAdjust->value = y_pos;

-        
-        wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK;
-        wxScrollWinEvent event( command, m_yScrollPosition, wxVERTICAL );
-        event.SetEventObject( this );
-        GetEventHandler()->ProcessEvent( event );
-    
+

         m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine );
         m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine );

-        
+
+        // Just update the scrollbar, don't send any wxWindows event
+        GtkVDisconnectEvent();

         gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" );
         gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" );

+        GtkVConnectEvent();

     }
 }
 
     }
 }
 


@@ -439,15 +429,15 @@ void wxScrolledWindow::GtkVScroll( float value )
 
     if (m_yScrollPixelsPerLine == 0)
         return;
 
     if (m_yScrollPixelsPerLine == 0)
         return;

-    
+

     int y_pos = (int)(value+0.5);
     int y_pos = (int)(value+0.5);

-    
+

     if (y_pos == m_yScrollPosition)
         return;
     if (y_pos == m_yScrollPosition)
         return;

-    
+

     GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
     GtkRange *range = GTK_RANGE(scrolledWindow->vscrollbar);
     GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
     GtkRange *range = GTK_RANGE(scrolledWindow->vscrollbar);

-    
+

     wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK;
     if      (range->scroll_type == GTK_SCROLL_STEP_BACKWARD) command = wxEVT_SCROLLWIN_LINEUP;
     else if (range->scroll_type == GTK_SCROLL_STEP_FORWARD)  command = wxEVT_SCROLLWIN_LINEDOWN;
     wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK;
     if      (range->scroll_type == GTK_SCROLL_STEP_BACKWARD) command = wxEVT_SCROLLWIN_LINEUP;
     else if (range->scroll_type == GTK_SCROLL_STEP_FORWARD)  command = wxEVT_SCROLLWIN_LINEDOWN;


@@ -457,23 +447,16 @@ void wxScrolledWindow::GtkVScroll( float value )
     wxScrollWinEvent event( command, y_pos, wxVERTICAL );
     event.SetEventObject( this );
     GetEventHandler()->ProcessEvent( event );
     wxScrollWinEvent event( command, y_pos, wxVERTICAL );
     event.SetEventObject( this );
     GetEventHandler()->ProcessEvent( event );

-    
-/*
-    int old_y = m_yScrollPosition;
-    m_yScrollPosition = y_pos;
-
-    m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine );
-*/

 }
 
 void wxScrolledWindow::GtkHScroll( float value )
 {
     if (!m_targetWindow)
         return;
 }
 
 void wxScrolledWindow::GtkHScroll( float value )
 {
     if (!m_targetWindow)
         return;

-        
+

     if (m_xScrollPixelsPerLine == 0)
         return;
     if (m_xScrollPixelsPerLine == 0)
         return;

-    
+

     int x_pos = (int)(value+0.5);
 
     if (x_pos == m_xScrollPosition)
     int x_pos = (int)(value+0.5);
 
     if (x_pos == m_xScrollPosition)


@@ -481,7 +464,7 @@ void wxScrolledWindow::GtkHScroll( float value )
 
     GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
     GtkRange *range = GTK_RANGE(scrolledWindow->hscrollbar);
 
     GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget);
     GtkRange *range = GTK_RANGE(scrolledWindow->hscrollbar);

-    
+

     wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK;
     if      (range->scroll_type == GTK_SCROLL_STEP_BACKWARD) command = wxEVT_SCROLLWIN_LINEUP;
     else if (range->scroll_type == GTK_SCROLL_STEP_FORWARD)  command = wxEVT_SCROLLWIN_LINEDOWN;
     wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK;
     if      (range->scroll_type == GTK_SCROLL_STEP_BACKWARD) command = wxEVT_SCROLLWIN_LINEUP;
     else if (range->scroll_type == GTK_SCROLL_STEP_FORWARD)  command = wxEVT_SCROLLWIN_LINEDOWN;


@@ -491,13 +474,6 @@ void wxScrolledWindow::GtkHScroll( float value )
     wxScrollWinEvent event( command, x_pos, wxHORIZONTAL );
     event.SetEventObject( this );
     GetEventHandler()->ProcessEvent( event );
     wxScrollWinEvent event( command, x_pos, wxHORIZONTAL );
     event.SetEventObject( this );
     GetEventHandler()->ProcessEvent( event );

-    
-/*
-    int old_x = m_xScrollPosition;
-    m_xScrollPosition = x_pos;
-
-    m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 );
-*/

 }
 
 void wxScrolledWindow::EnableScrolling (bool x_scroll, bool y_scroll)
 }
 
 void wxScrolledWindow::EnableScrolling (bool x_scroll, bool y_scroll)


@@ -594,16 +570,13 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event)
     {
         if (m_xScrollPixelsPerLine > 0)
         {
     {
         if (m_xScrollPixelsPerLine > 0)
         {

-            int w, h;
-            m_targetWindow->GetClientSize(&w, &h);
-            
-            int noPositions = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5);
-            if (noPositions < 0) noPositions = 0;
+            int max = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5);
+            if (max < 0) max = 0;

 
             if ( (m_xScrollPosition + nScrollInc) < 0 )
                 nScrollInc = -m_xScrollPosition; // As -ve as we can go
 
             if ( (m_xScrollPosition + nScrollInc) < 0 )
                 nScrollInc = -m_xScrollPosition; // As -ve as we can go

-            else if ( (m_xScrollPosition + nScrollInc) > noPositions )
-                nScrollInc = noPositions - m_xScrollPosition; // As +ve as we can go
+            else if ( (m_xScrollPosition + nScrollInc) > max )
+                nScrollInc = max - m_xScrollPosition; // As +ve as we can go

         }
         else
             m_targetWindow->Refresh();
         }
         else
             m_targetWindow->Refresh();


@@ -612,16 +585,13 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event)
     {
         if (m_yScrollPixelsPerLine > 0)
         {
     {
         if (m_yScrollPixelsPerLine > 0)
         {

-            int w, h;
-            m_targetWindow->GetClientSize(&w, &h);
-
-            int noPositions = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5);
-            if (noPositions < 0) noPositions = 0;
+            int max = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5);
+            if (max < 0) max = 0;

 
             if ( (m_yScrollPosition + nScrollInc) < 0 )
                 nScrollInc = -m_yScrollPosition; // As -ve as we can go
 
             if ( (m_yScrollPosition + nScrollInc) < 0 )
                 nScrollInc = -m_yScrollPosition; // As -ve as we can go

-            else if ( (m_yScrollPosition + nScrollInc) > noPositions )
-                nScrollInc = noPositions - m_yScrollPosition; // As +ve as we can go
+            else if ( (m_yScrollPosition + nScrollInc) > max )
+                nScrollInc = max - m_yScrollPosition; // As +ve as we can go

         }
         else
             m_targetWindow->Refresh();
         }
         else
             m_targetWindow->Refresh();


@@ -638,48 +608,70 @@ void wxScrolledWindow::SetScrollPos( int orient, int pos, bool WXUNUSED(refresh)
 
     if (orient == wxHORIZONTAL)
     {
 
     if (orient == wxHORIZONTAL)
     {

-        float fpos = (float)pos;
-        if (fpos > m_hAdjust->upper - m_hAdjust->page_size) fpos = m_hAdjust->upper - m_hAdjust->page_size;
-        if (fpos < 0.0) fpos = 0.0;
+        int max = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5);
+        if (max < 0) max = 0;
+
+        if (pos > max) pos = 0;
+        if (pos < 0) pos = 0;

 
 

-        if (fabs(fpos-m_hAdjust->value) < 0.2) return;
-        m_hAdjust->value = fpos;
+        if (pos == (int)(m_hAdjust->value+0.5)) return;
+        m_hAdjust->value = pos;

     }
     else
     {
     }
     else
     {

-        float fpos = (float)pos;
-        if (fpos > m_vAdjust->upper - m_vAdjust->page_size) fpos = m_vAdjust->upper - m_vAdjust->page_size;
-        if (fpos < 0.0) fpos = 0.0;
+        int max = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5);
+        if (max < 0) max = 0;

 
 

-        if (fabs(fpos-m_vAdjust->value) < 0.2) return;
-        m_vAdjust->value = fpos;
+        if (pos > max) pos = 0;
+        if (pos < 0) pos = 0;
+
+        if (pos == (int)(m_vAdjust->value+0.5)) return;
+        m_vAdjust->value = pos;

     }
 
     if (m_wxwindow->window)
     {
         if (orient == wxHORIZONTAL)
         {
     }
 
     if (m_wxwindow->window)
     {
         if (orient == wxHORIZONTAL)
         {

-            gtk_signal_disconnect_by_func( GTK_OBJECT(m_hAdjust),
-                (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this );
-
+            // Just update the scrollbar, don't send any wxWindows event
+            GtkHDisconnectEvent();

             gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" );
             gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" );

-
-            gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed",
-                (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this );
+            GtkHConnectEvent();

         }
         else
         {
         }
         else
         {

-            gtk_signal_disconnect_by_func( GTK_OBJECT(m_vAdjust),
-                (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this );
-
+            // Just update the scrollbar, don't send any wxWindows event
+            GtkVDisconnectEvent();

             gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" );
             gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" );

-
-            gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed",
-                (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this );
+            GtkVConnectEvent();

         }
     }
 }
 
         }
     }
 }
 

+void wxScrolledWindow::GtkVConnectEvent()
+{
+    gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed",
+          (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this );
+}
+
+void wxScrolledWindow::GtkHConnectEvent()
+{
+    gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed",
+          (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this );
+}
+
+void wxScrolledWindow::GtkHDisconnectEvent()
+{
+    gtk_signal_disconnect_by_func( GTK_OBJECT(m_hAdjust),
+        (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this );
+}
+
+void wxScrolledWindow::GtkVDisconnectEvent()
+{
+    gtk_signal_disconnect_by_func( GTK_OBJECT(m_vAdjust),
+        (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this );
+}
+

 // ----------------------------------------------------------------------------
 // event handlers
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // event handlers
 // ----------------------------------------------------------------------------


@@ -740,6 +732,9 @@ void wxScrolledWindow::OnChar(wxKeyEvent& event)
         szy = -1;
     }
 
         szy = -1;
     }
 

+    int xScrollOld = GetScrollPos(wxHORIZONTAL),
+        yScrollOld = GetScrollPos(wxVERTICAL);
+

     int dsty;
     switch ( event.KeyCode() )
     {
     int dsty;
     switch ( event.KeyCode() )
     {


@@ -781,5 +776,25 @@ void wxScrolledWindow::OnChar(wxKeyEvent& event)
         default:
             // not for us
             event.Skip();
         default:
             // not for us
             event.Skip();

+            return;
+    }
+
+    int xScroll = GetScrollPos(wxHORIZONTAL);
+    if ( xScroll != xScrollOld )
+    {
+        wxScrollWinEvent event(wxEVT_SCROLLWIN_THUMBTRACK, xScroll,
+                               wxHORIZONTAL);
+        event.SetEventObject(this);
+        GetEventHandler()->ProcessEvent(event);
+    }
+
+    int yScroll = GetScrollPos(wxVERTICAL);
+    if ( yScroll != yScrollOld )
+    {
+        wxScrollWinEvent event(wxEVT_SCROLLWIN_THUMBTRACK, yScroll,
+                               wxVERTICAL);
+        event.SetEventObject(this);
+        GetEventHandler()->ProcessEvent(event);

     }
 }
     }
 }

+