X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d66a042c1cd17d94d87be0c916edf1264b549abc..625cb8c0b1ac12f26265cae2c69d7f510de0edb1:/src/generic/splitter.cpp

diff --git a/src/generic/splitter.cpp b/src/generic/splitter.cpp
index 4272fe2514..dc50eb3590 100644
--- a/src/generic/splitter.cpp
+++ b/src/generic/splitter.cpp
@@ -21,7 +21,9 @@
 #endif
 
 #ifndef WX_PRECOMP
-    #include "wx/wx.h"
+    #include "wx/window.h"
+    #include "wx/dialog.h"
+    #include "wx/frame.h"
 #endif
 
 #include <stdlib.h>
@@ -29,55 +31,72 @@
 #include "wx/string.h"
 #include "wx/splitter.h"
 #include "wx/dcscreen.h"
+#include "wx/settings.h"
+#include "wx/log.h"
+
+DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED)
+DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING)
+DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPLITTER_DOUBLECLICKED)
+DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPLITTER_UNSPLIT)
 
-#if !USE_SHARED_LIBRARY
 IMPLEMENT_DYNAMIC_CLASS(wxSplitterWindow, wxWindow)
 IMPLEMENT_DYNAMIC_CLASS(wxSplitterEvent, wxCommandEvent)
 
 BEGIN_EVENT_TABLE(wxSplitterWindow, wxWindow)
     EVT_PAINT(wxSplitterWindow::OnPaint)
     EVT_SIZE(wxSplitterWindow::OnSize)
+    EVT_IDLE(wxSplitterWindow::OnIdle)
     EVT_MOUSE_EVENTS(wxSplitterWindow::OnMouseEvent)
 
+    EVT_SET_CURSOR(wxSplitterWindow::OnSetCursor)
+
     EVT_SPLITTER_SASH_POS_CHANGED(-1, wxSplitterWindow::OnSashPosChanged)
+    // NB: we borrow OnSashPosChanged for purposes of
+    // EVT_SPLITTER_SASH_POS_CHANGING since default implementation is identical
+    EVT_SPLITTER_SASH_POS_CHANGING(-1, wxSplitterWindow::OnSashPosChanged)
     EVT_SPLITTER_DCLICK(-1,           wxSplitterWindow::OnDoubleClick)
     EVT_SPLITTER_UNSPLIT(-1,          wxSplitterWindow::OnUnsplitEvent)
+
+    WX_EVENT_TABLE_CONTROL_CONTAINER(wxSplitterWindow)
 END_EVENT_TABLE()
-#endif
 
-wxSplitterWindow::wxSplitterWindow()
-{
-    m_splitMode = wxSPLIT_VERTICAL;
-    m_windowOne = (wxWindow *) NULL;
-    m_windowTwo = (wxWindow *) NULL;
-    m_dragMode = wxSPLIT_DRAG_NONE;
-    m_oldX = 0;
-    m_oldY = 0;
-    m_firstX = 0;
-    m_firstY = 0;
-    m_sashSize = 7;
-    m_borderSize = 2;
-    m_sashPosition = 0;
-    m_sashCursorWE = (wxCursor *) NULL;
-    m_sashCursorNS = (wxCursor *) NULL;
-    m_sashTrackerPen = (wxPen *) NULL;
-    m_lightShadowPen = (wxPen *) NULL;
-    m_mediumShadowPen = (wxPen *) NULL;
-    m_darkShadowPen = (wxPen *) NULL;
-    m_faceBrush = (wxBrush *) NULL;
-    m_facePen = (wxPen *) NULL;
-    m_hilightPen = (wxPen *) NULL;
-    m_minimumPaneSize = 0;
-}
+WX_DELEGATE_TO_CONTROL_CONTAINER(wxSplitterWindow);
 
-wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id,
+bool wxSplitterWindow::Create(wxWindow *parent, wxWindowID id,
                                    const wxPoint& pos,
                                    const wxSize& size,
                                    long style,
                                    const wxString& name)
-                : wxWindow(parent, id, pos, size, style, name)
 {
+    // allow TABbing from one window to the other
+    style |= wxTAB_TRAVERSAL;
+
+    if (!wxWindow::Create(parent, id, pos, size, style, name))
+        return FALSE;
+
+    m_permitUnsplitAlways = (style & wxSP_PERMIT_UNSPLIT) != 0;
+
+    if ( style & wxSP_3DSASH )
+        m_sashSize = 7;
+    else
+        m_sashSize = 3;
+
+    if ( style & wxSP_3DBORDER )
+        m_borderSize = 2;
+    else if ( style & wxSP_BORDER )
+        m_borderSize = 1;
+    else
+        m_borderSize = 0;
+
+    return TRUE;
+}
+
+void wxSplitterWindow::Init()
+{
+    m_container.SetContainerWindow(this);
+
     m_splitMode = wxSPLIT_VERTICAL;
+    m_permitUnsplitAlways = TRUE;
     m_windowOne = (wxWindow *) NULL;
     m_windowTwo = (wxWindow *) NULL;
     m_dragMode = wxSPLIT_DRAG_NONE;
@@ -99,27 +118,12 @@ wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id,
     m_facePen = (wxPen *) NULL;
     m_hilightPen = (wxPen *) NULL;
 
-    if ( style & wxSP_3D )
-    {
-        m_borderSize = 2;
-        m_sashSize = 7;
-    }
-    else if ( style & wxSP_BORDER )
-    {
-        m_borderSize = 1;
-        m_sashSize = 3;
-    }
-    else
-    {
-        m_borderSize = 0;
-        m_sashSize = 3;
-    }
+    m_borderSize = 0;
+    m_sashSize = 3;
 
-    // Eventually, we'll respond to colour change messages
     InitColours();
 
-    // For debugging purposes, to see the background.
-//    SetBackground(wxBLUE_BRUSH);
+    m_needUpdating = FALSE;
 }
 
 wxSplitterWindow::~wxSplitterWindow()
@@ -144,11 +148,18 @@ void wxSplitterWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
     DrawSash(dc);
 }
 
+void wxSplitterWindow::OnIdle(wxIdleEvent& event)
+{
+    if (m_needUpdating)
+        SizeWindows();
+
+    event.Skip();
+}
 
 void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
 {
-    long x = event.GetX();
-    long y = event.GetY();
+    wxCoord x = (wxCoord)event.GetX(),
+            y = (wxCoord)event.GetY();
 
     // reset the cursor
 #ifdef __WXMOTIF__
@@ -158,15 +169,8 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
     SetCursor(wxCursor());
 #endif
 
-    // under wxGTK the method above causes the mouse
-    // to flicker so we set the standard cursor only
-    // when leaving the window and when moving over
-    // non-sash parts of the window. this should work
-    // on the other platforms as well, but who knows.
-#ifdef __WXGTK__
-    if (event.Leaving())
-        SetCursor(* wxSTANDARD_CURSOR);
-#endif
+    if (GetWindowStyle() & wxSP_NOSASH)
+        return;
 
     if (event.LeftDown())
     {
@@ -176,9 +180,22 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
 
             m_dragMode = wxSPLIT_DRAG_DRAGGING;
 
-            DrawSashTracker(x, y);
+            if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0)
+            {
+                DrawSashTracker(x, y);
+            }
+
             m_oldX = x;
             m_oldY = y;
+
+            if ( m_splitMode == wxSPLIT_VERTICAL )
+            {
+                SetCursor(*m_sashCursorWE);
+            }
+            else
+            {
+                SetCursor(*m_sashCursorNS);
+            }
             return;
         }
     }
@@ -189,7 +206,10 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
         ReleaseMouse();
 
         // Erase old tracker
-        DrawSashTracker(m_oldX, m_oldY);
+        if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0)
+        {
+            DrawSashTracker(m_oldX, m_oldY);
+        }
 
         // Obtain window size. We are only interested in the dimension the sash
         // splits up
@@ -212,22 +232,30 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
             }
         }
 
-        if ( new_sash_position == 0 )
-        {
-            // We remove the first window from the view
-            wxWindow *removedWindow = m_windowOne;
-            m_windowOne = m_windowTwo;
-            m_windowTwo = (wxWindow *) NULL;
-            SendUnsplitEvent(removedWindow);
-            m_sashPosition = 0;
-        }
-        else if ( new_sash_position == window_size )
+        if ( m_permitUnsplitAlways || m_minimumPaneSize == 0 )
         {
-            // We remove the second window from the view
-            wxWindow *removedWindow = m_windowTwo;
-            m_windowTwo = (wxWindow *) NULL;
-            SendUnsplitEvent(removedWindow);
-            m_sashPosition = 0;
+            // Deal with possible unsplit scenarios
+            if ( new_sash_position == 0 )
+            {
+                // We remove the first window from the view
+                wxWindow *removedWindow = m_windowOne;
+                m_windowOne = m_windowTwo;
+                m_windowTwo = (wxWindow *) NULL;
+                SendUnsplitEvent(removedWindow);
+                m_sashPosition = 0;
+            }
+            else if ( new_sash_position == window_size )
+            {
+                // We remove the second window from the view
+                wxWindow *removedWindow = m_windowTwo;
+                m_windowTwo = (wxWindow *) NULL;
+                SendUnsplitEvent(removedWindow);
+                m_sashPosition = 0;
+            }
+            else
+            {
+                m_sashPosition = new_sash_position;
+            }
         }
         else
         {
@@ -250,18 +278,69 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
                     SetCursor(*m_sashCursorNS);
                 }
         }
-#ifdef __WXGTK__
+#if defined(__WXGTK__) || defined(__WXMSW__)
         else
         {
+            // We must set the normal cursor in MSW, because
+            // if the child window doesn't have a cursor, the
+            // parent's (splitter window) will be used, and this
+            // must be the standard cursor.
+
             // where else do we unset the cursor?
             SetCursor(* wxSTANDARD_CURSOR);
         }
 #endif // __WXGTK__
     }
-    else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) 
+    else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING))
     {
+#ifdef __WXMSW__
+        // Otherwise, the cursor sometimes reverts to the normal cursor
+        // during dragging.
+        if ( m_splitMode == wxSPLIT_VERTICAL )
+        {
+            SetCursor(*m_sashCursorWE);
+        }
+        else
+        {
+            SetCursor(*m_sashCursorNS);
+        }
+#endif
+
+        // Obtain window size. We are only interested in the dimension the sash
+        // splits up
+        int new_sash_position =
+            (int) ( m_splitMode == wxSPLIT_VERTICAL ? x : y );
+
+        wxSplitterEvent eventSplitter(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING,
+                                      this);
+        eventSplitter.m_data.pos = new_sash_position;
+        if ( GetEventHandler()->ProcessEvent(eventSplitter) )
+        {
+            new_sash_position = eventSplitter.GetSashPosition();
+            if ( new_sash_position == -1 )
+            {
+                // change not allowed
+                return;
+            }
+        }
+
+        if (new_sash_position == m_sashPosition)
+            return;
+
         // Erase old tracker
-        DrawSashTracker(m_oldX, m_oldY);
+        if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0)
+        {
+            DrawSashTracker(m_oldX, m_oldY);
+        }
+
+        if (m_splitMode == wxSPLIT_VERTICAL)
+            x = new_sash_position;
+        else
+            y = new_sash_position;
+
+        // Remember old positions
+        m_oldX = x;
+        m_oldY = y;
 
 #ifdef __WXMSW__
         // As we captured the mouse, we may get the mouse events from outside
@@ -270,9 +349,6 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
         // signed ones other times: the coordinates turn as big positive
         // numbers and so the sash is drawn on the *right* side of the window
         // instead of the left (or bottom instead of top). Correct this.
-        m_oldX = x;
-        m_oldY = y;
-
         if ( (short)m_oldX < 0 )
             m_oldX = 0;
         if ( (short)m_oldY < 0 )
@@ -280,7 +356,15 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
 #endif // __WXMSW__
 
         // Draw new one
-        DrawSashTracker(m_oldX, m_oldY);
+        if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0)
+        {
+            DrawSashTracker(m_oldX, m_oldY);
+        }
+        else
+        {
+            m_sashPosition = new_sash_position;
+            m_needUpdating = TRUE;
+        }
     }
     else if ( event.LeftDClick() )
     {
@@ -293,24 +377,54 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
     }
 }
 
-void wxSplitterWindow::OnSize(wxSizeEvent& WXUNUSED(event))
+void wxSplitterWindow::OnSize(wxSizeEvent& event)
 {
-    int cw, ch;
-    GetClientSize( &cw, &ch );
-    if ( m_windowTwo )
+    // only process this message if we're not iconized - otherwise iconizing
+    // and restoring a window containing the splitter has a funny side effect
+    // of changing the splitter position!
+    wxWindow *parent = GetParent();
+    while ( parent && !parent->IsTopLevel() )
     {
-        if ( m_splitMode == wxSPLIT_VERTICAL )
-        {
-            if ( m_sashPosition >= (cw - 5) )
-                m_sashPosition = wxMax(10, cw - 40);
-        }
-        if ( m_splitMode == wxSPLIT_HORIZONTAL )
+        parent = parent->GetParent();
+    }
+
+    bool iconized = FALSE;
+    wxFrame *frame = wxDynamicCast(parent, wxFrame);
+    if ( frame )
+        iconized = frame->IsIconized();
+    else
+    {
+        wxDialog *dialog = wxDynamicCast(parent, wxDialog);
+        if ( dialog )
+            iconized = dialog->IsIconized();
+        else
+            wxFAIL_MSG(wxT("should have a top level frame or dialog parent!"));
+    }
+
+    if ( iconized )
+    {
+        event.Skip();
+    }
+    else
+    {
+        int cw, ch;
+        GetClientSize( &cw, &ch );
+        if ( m_windowTwo )
         {
-            if ( m_sashPosition >= (ch - 5) )
-                m_sashPosition = wxMax(10, ch - 40);
+            if ( m_splitMode == wxSPLIT_VERTICAL )
+            {
+                if ( m_sashPosition >= (cw - 5) )
+                    m_sashPosition = wxMax(10, cw - 40);
+            }
+            if ( m_splitMode == wxSPLIT_HORIZONTAL )
+            {
+                if ( m_sashPosition >= (ch - 5) )
+                    m_sashPosition = wxMax(10, ch - 40);
+            }
         }
+
+        SizeWindows();
     }
-    SizeWindows();
 }
 
 bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance)
@@ -332,8 +446,6 @@ bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance)
         else
             return FALSE;
     }
-
-    return FALSE;
 }
 
 // Draw 3D effect borders
@@ -342,24 +454,32 @@ void wxSplitterWindow::DrawBorders(wxDC& dc)
     int w, h;
     GetClientSize(&w, &h);
 
-    if ( GetWindowStyleFlag() & wxSP_3D )
+    if ( GetWindowStyleFlag() & wxSP_3DBORDER )
     {
+
+        dc.SetPen(*m_facePen);
+        dc.SetBrush(*m_faceBrush);
+        dc.DrawRectangle(1, 1 , w-1, m_borderSize-2 ); //high
+        dc.DrawRectangle(1, m_borderSize-2 , m_borderSize-2, h-1 ); // left
+        dc.DrawRectangle(w-m_borderSize+2, m_borderSize-2 , w-1, h-1 ); // right
+        dc.DrawRectangle(m_borderSize-2, h-m_borderSize+2 , w-m_borderSize+2, h-1 ); //bottom
+
         dc.SetPen(*m_mediumShadowPen);
-        dc.DrawLine(0, 0, w-1, 0);
-        dc.DrawLine(0, 0, 0, h - 1);
+        dc.DrawLine(m_borderSize-2, m_borderSize-2, w-m_borderSize+1, m_borderSize-2);
+        dc.DrawLine(m_borderSize-2, m_borderSize-2, m_borderSize-2, h-m_borderSize+1);
 
         dc.SetPen(*m_darkShadowPen);
-        dc.DrawLine(1, 1, w-2, 1);
-        dc.DrawLine(1, 1, 1, h-2);
+        dc.DrawLine(m_borderSize-1, m_borderSize-1, w-m_borderSize, m_borderSize-1);
+        dc.DrawLine(m_borderSize-1, m_borderSize-1, m_borderSize-1, h-m_borderSize);
 
         dc.SetPen(*m_hilightPen);
-        dc.DrawLine(0, h-1, w-1, h-1);
-        dc.DrawLine(w-1, 0, w-1, h); // Surely the maximum y pos. should be h - 1.
+        dc.DrawLine(m_borderSize - 2, h-m_borderSize+1, w-m_borderSize+1, h-m_borderSize+1);
+        dc.DrawLine(w-m_borderSize+1, m_borderSize - 2, w-m_borderSize+1, h-m_borderSize+2); // Surely the maximum y pos. should be h - 1.
                                      /// Anyway, h is required for MSW.
 
         dc.SetPen(*m_lightShadowPen);
-        dc.DrawLine(w-2, 1, w-2, h-2); // Right hand side
-        dc.DrawLine(1, h-2, w-1, h-2);     // Bottom
+        dc.DrawLine(w-m_borderSize, m_borderSize-1, w-m_borderSize, h-m_borderSize); // Right hand side
+        dc.DrawLine(m_borderSize-1, h-m_borderSize, w-m_borderSize+1, h-m_borderSize);     // Bottom
     }
     else if ( GetWindowStyleFlag() & wxSP_BORDER )
     {
@@ -377,51 +497,79 @@ void wxSplitterWindow::DrawSash(wxDC& dc)
 {
     if ( m_sashPosition == 0 || !m_windowTwo)
         return;
+    if (GetWindowStyle() & wxSP_NOSASH)
+        return;
 
     int w, h;
     GetClientSize(&w, &h);
 
-    if ( GetWindowStyleFlag() & wxSP_3D )
+    if ( GetWindowStyleFlag() & wxSP_3DSASH )
     {
         if ( m_splitMode == wxSPLIT_VERTICAL )
         {
             dc.SetPen(*m_facePen);
             dc.SetBrush(*m_faceBrush);
-            dc.DrawRectangle(m_sashPosition + 2, 0, m_sashSize - 4, h);
+            dc.DrawRectangle(m_sashPosition + 2, 0 , m_sashSize - 4, h );
 
             dc.SetBrush(*wxTRANSPARENT_BRUSH);
 
             dc.SetPen(*m_lightShadowPen);
-            dc.DrawLine(m_sashPosition, 1, m_sashPosition, h-2);
+            int xShadow = m_borderSize ? m_borderSize - 1 : 0 ;
+            dc.DrawLine(m_sashPosition, xShadow , m_sashPosition, h-m_borderSize);
 
             dc.SetPen(*m_hilightPen);
-            dc.DrawLine(m_sashPosition+1, 0, m_sashPosition+1, h);
+            dc.DrawLine(m_sashPosition+1, m_borderSize - 2, m_sashPosition+1, h - m_borderSize+2);
 
             dc.SetPen(*m_mediumShadowPen);
-            dc.DrawLine(m_sashPosition+m_sashSize-2, 1, m_sashPosition+m_sashSize-2, h-1);
+                        int yMedium = m_borderSize ? h-m_borderSize+1 : h ;
+            dc.DrawLine(m_sashPosition+m_sashSize-2, xShadow, m_sashPosition+m_sashSize-2, yMedium);
 
             dc.SetPen(*m_darkShadowPen);
-            dc.DrawLine(m_sashPosition+m_sashSize-1, 2, m_sashPosition+m_sashSize-1, h-2);
+            dc.DrawLine(m_sashPosition+m_sashSize-1, m_borderSize, m_sashPosition+m_sashSize-1, h-m_borderSize );
+
+            // Draw the top and bottom edges of the sash, if requested
+            if (GetWindowStyle() & wxSP_FULLSASH)
+            {
+                // Top
+                dc.SetPen(*m_hilightPen);
+                dc.DrawLine(m_sashPosition+1, m_borderSize, m_sashPosition+m_sashSize-1, m_borderSize);
+
+                // Bottom
+                dc.SetPen(*m_darkShadowPen);
+                dc.DrawLine(m_sashPosition+1, h-m_borderSize-1, m_sashPosition+m_sashSize-1, h-m_borderSize-1);
+            }
         }
         else
         {
             dc.SetPen(*m_facePen);
             dc.SetBrush(*m_faceBrush);
-            dc.DrawRectangle(0, m_sashPosition + 2, w, m_sashSize - 4);
+            dc.DrawRectangle( m_borderSize-2, m_sashPosition + 2, w-m_borderSize+2, m_sashSize - 4);
 
             dc.SetBrush(*wxTRANSPARENT_BRUSH);
 
             dc.SetPen(*m_lightShadowPen);
-            dc.DrawLine(1, m_sashPosition, w-2, m_sashPosition);
+            dc.DrawLine(m_borderSize-1, m_sashPosition, w-m_borderSize, m_sashPosition);
 
             dc.SetPen(*m_hilightPen);
-            dc.DrawLine(0, m_sashPosition+1, w, m_sashPosition+1);
+            dc.DrawLine(m_borderSize-2, m_sashPosition+1, w-m_borderSize+1, m_sashPosition+1);
 
             dc.SetPen(*m_mediumShadowPen);
-            dc.DrawLine(1, m_sashPosition+m_sashSize-2, w-1, m_sashPosition+m_sashSize-2);
+            dc.DrawLine(m_borderSize-1, m_sashPosition+m_sashSize-2, w-m_borderSize+1, m_sashPosition+m_sashSize-2);
 
             dc.SetPen(*m_darkShadowPen);
-            dc.DrawLine(2, m_sashPosition+m_sashSize-1, w-2, m_sashPosition+m_sashSize-1);
+            dc.DrawLine(m_borderSize, m_sashPosition+m_sashSize-1, w-m_borderSize, m_sashPosition+m_sashSize-1);
+
+            // Draw the left and right edges of the sash, if requested
+            if (GetWindowStyle() & wxSP_FULLSASH)
+            {
+                // Left
+                dc.SetPen(*m_hilightPen);
+                dc.DrawLine(m_borderSize, m_sashPosition, m_borderSize, m_sashPosition+m_sashSize);
+
+                // Right
+                dc.SetPen(*m_darkShadowPen);
+                dc.DrawLine(w-m_borderSize-1, m_sashPosition+1, w-m_borderSize-1, m_sashPosition+m_sashSize-1);
+            }
         }
     }
     else
@@ -431,19 +579,28 @@ void wxSplitterWindow::DrawSash(wxDC& dc)
             dc.SetPen(*wxBLACK_PEN);
             dc.SetBrush(*wxBLACK_BRUSH);
             int h1 = h-1;
-            if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER )
+            int y1 = 0;
+            if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER )
                 h1 += 1; // Not sure why this is necessary...
-            dc.DrawRectangle(m_sashPosition, 0, m_sashSize, h1);
+            if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER)
+            {
+                y1 = 2; h1 -= 3;
+            }
+            dc.DrawRectangle(m_sashPosition, y1, m_sashSize, h1);
         }
         else
         {
             dc.SetPen(*wxBLACK_PEN);
             dc.SetBrush(*wxBLACK_BRUSH);
             int w1 = w-1;
-            if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER )
+            int x1 = 0;
+            if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER )
                 w1 ++;
-
-            dc.DrawRectangle(0, m_sashPosition, w1, m_sashSize);
+            if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER)
+            {
+                x1 = 2; w1 -= 3;
+            }
+            dc.DrawRectangle(x1, m_sashPosition, w1, m_sashSize);
         }
 
     }
@@ -496,7 +653,7 @@ void wxSplitterWindow::DrawSashTracker(int x, int y)
     ClientToScreen(&x1, &y1);
     ClientToScreen(&x2, &y2);
 
-    screenDC.SetLogicalFunction(wxXOR);
+    screenDC.SetLogicalFunction(wxINVERT);
     screenDC.SetPen(*m_sashTrackerPen);
     screenDC.SetBrush(*wxTRANSPARENT_BRUSH);
 
@@ -516,51 +673,42 @@ void wxSplitterWindow::SizeWindows()
     int w, h;
     GetClientSize(&w, &h);
 
-    if ( m_windowOne && !m_windowTwo )
+    if ( GetWindow1() && !GetWindow2() )
     {
-        m_windowOne->SetSize(m_borderSize, m_borderSize, w - 2*m_borderSize, h - 2*m_borderSize);
-	
-	if (m_windowOne->GetAutoLayout())
-	    m_windowOne->Layout();
+        GetWindow1()->SetSize(GetBorderSize(), GetBorderSize(), w - 2*GetBorderSize(), h - 2*GetBorderSize());
+
     }
-    else if ( m_windowOne && m_windowTwo )
+    else if ( GetWindow1() && GetWindow2() )
     {
-        if (m_splitMode == wxSPLIT_VERTICAL)
+        if (GetSplitMode() == wxSPLIT_VERTICAL)
         {
-            int x1 = m_borderSize;
-            int y1 = m_borderSize;
-            int w1 = m_sashPosition - m_borderSize;
-            int h1 = h - 2*m_borderSize;
-
-            int x2 = m_sashPosition + m_sashSize;
-            int y2 = m_borderSize;
-            int w2 = w - 2*m_borderSize - m_sashSize - w1;
-            int h2 = h - 2*m_borderSize;
-
-            m_windowOne->SetSize(x1, y1, w1, h1);
-            m_windowTwo->SetSize(x2, y2, w2, h2);
-	
-	    if (m_windowOne->GetAutoLayout())
-	        m_windowOne->Layout();
-	    if (m_windowTwo->GetAutoLayout())
-	        m_windowTwo->Layout();
+            int x1 = GetBorderSize();
+            int y1 = GetBorderSize();
+            int w1 = GetSashPosition() - GetBorderSize();
+            int h1 = h - 2*GetBorderSize();
+
+            int x2 = GetSashPosition() + GetSashSize();
+            int y2 = GetBorderSize();
+            int w2 = w - 2*GetBorderSize() - GetSashSize() - w1;
+            int h2 = h - 2*GetBorderSize();
+
+            GetWindow1()->SetSize(x1, y1, w1, h1);
+            GetWindow2()->SetSize(x2, y2, w2, h2);
         }
         else
         {
-            m_windowOne->SetSize(m_borderSize, m_borderSize,
-                w - 2*m_borderSize, m_sashPosition - m_borderSize);
-            m_windowTwo->SetSize(m_borderSize, m_sashPosition + m_sashSize,
-                w - 2*m_borderSize, h - 2*m_borderSize - m_sashSize - (m_sashPosition - m_borderSize));
-		
-	    if (m_windowOne->GetAutoLayout())
-	        m_windowOne->Layout();
-	    if (m_windowTwo->GetAutoLayout())
-	        m_windowTwo->Layout();
+            GetWindow1()->SetSize(GetBorderSize(), GetBorderSize(),
+                w - 2*GetBorderSize(), GetSashPosition() - GetBorderSize());
+            GetWindow2()->SetSize(GetBorderSize(), GetSashPosition() + GetSashSize(),
+                w - 2*GetBorderSize(), h - 2*GetBorderSize() - GetSashSize() - (GetSashPosition() - GetBorderSize()));
         }
     }
     wxClientDC dc(this);
-    DrawBorders(dc);
+    if ( GetBorderSize() > 0 )
+        DrawBorders(dc);
     DrawSash(dc);
+
+    SetNeedUpdating(FALSE);
 }
 
 // Set pane for unsplit window
@@ -588,7 +736,7 @@ bool wxSplitterWindow::SplitVertically(wxWindow *window1, wxWindow *window2, int
     if ( sashPosition > 0 )
         m_sashPosition = sashPosition;
     else if ( sashPosition < 0 )
-        m_sashPosition = w - sashPosition;
+        m_sashPosition = w + sashPosition;   // It's negative so adding is subtracting
     else    // default
         m_sashPosition = w/2;
 
@@ -611,7 +759,7 @@ bool wxSplitterWindow::SplitHorizontally(wxWindow *window1, wxWindow *window2, i
     if ( sashPosition > 0 )
         m_sashPosition = sashPosition;
     else if ( sashPosition < 0 )
-        m_sashPosition = h - sashPosition;
+        m_sashPosition = h + sashPosition; // It's negative so adding is subtracting
     else    // default
         m_sashPosition = h/2;
 
@@ -642,7 +790,7 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove)
     }
     else
     {
-        wxFAIL_MSG(_T("splitter: attempt to remove a non-existent window"));
+        wxFAIL_MSG(wxT("splitter: attempt to remove a non-existent window"));
 
         return FALSE;
     }
@@ -657,8 +805,8 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove)
 // Replace a window with another one
 bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew)
 {
-    wxCHECK_MSG( winOld, FALSE, _T("use one of Split() functions instead") );
-    wxCHECK_MSG( winNew, FALSE, _T("use Unsplit() functions instead") );
+    wxCHECK_MSG( winOld, FALSE, wxT("use one of Split() functions instead") );
+    wxCHECK_MSG( winNew, FALSE, wxT("use Unsplit() functions instead") );
 
     if ( winOld == m_windowTwo )
     {
@@ -670,7 +818,7 @@ bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew)
     }
     else
     {
-        wxFAIL_MSG(_T("splitter: attempt to replace a non-existent window"));
+        wxFAIL_MSG(wxT("splitter: attempt to replace a non-existent window"));
 
         return FALSE;
     }
@@ -701,7 +849,7 @@ void wxSplitterWindow::InitColours()
     wxDELETE( m_hilightPen );
 
     // Shadow colours
-#if defined(__WIN95__)
+#ifndef __WIN16__
     wxColour faceColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
     m_facePen = new wxPen(faceColour, 1, wxSOLID);
     m_faceBrush = new wxBrush(faceColour, wxSOLID);
@@ -717,14 +865,14 @@ void wxSplitterWindow::InitColours()
 
     wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
     m_hilightPen = new wxPen(hilightColour, 1, wxSOLID);
-#else // !Win32
+#else
     m_facePen = new wxPen("LIGHT GREY", 1, wxSOLID);
     m_faceBrush = new wxBrush("LIGHT GREY", wxSOLID);
     m_mediumShadowPen = new wxPen("GREY", 1, wxSOLID);
     m_darkShadowPen = new wxPen("BLACK", 1, wxSOLID);
     m_lightShadowPen = new wxPen("LIGHT GREY", 1, wxSOLID);
     m_hilightPen = new wxPen("WHITE", 1, wxSOLID);
-#endif // Win32/!Win32
+#endif // __WIN16__
 }
 
 void wxSplitterWindow::SendUnsplitEvent(wxWindow *winRemoved)
@@ -751,27 +899,34 @@ void wxSplitterWindow::OnSashPosChanged(wxSplitterEvent& event)
     GetClientSize(&w, &h);
     int window_size = (m_splitMode == wxSPLIT_VERTICAL) ? w : h ;
 
-    if ( newSashPosition <= UNSPLIT_THRESHOLD )
+    bool unsplit_scenario = FALSE;
+    if ( m_permitUnsplitAlways
+            || m_minimumPaneSize == 0 )
     {
-        // threshold top / left check
-        newSashPosition = 0;
+        // Do edge detection if unsplit premitted
+        if ( newSashPosition <= UNSPLIT_THRESHOLD )
+        {
+            // threshold top / left check
+            newSashPosition = 0;
+            unsplit_scenario = TRUE;
+        }
+        if ( newSashPosition >= window_size - UNSPLIT_THRESHOLD )
+        {
+            // threshold bottom/right check
+            newSashPosition = window_size;
+            unsplit_scenario = TRUE;
+        }
     }
-    else if ( newSashPosition >= window_size - UNSPLIT_THRESHOLD )
+
+    if ( !unsplit_scenario )
     {
-        // threshold bottom/right check
-        newSashPosition = window_size;
+        // If resultant pane would be too small, enlarge it
+        if ( newSashPosition < m_minimumPaneSize )
+            newSashPosition = m_minimumPaneSize;
+        if ( newSashPosition > window_size - m_minimumPaneSize )
+            newSashPosition = window_size - m_minimumPaneSize;
     }
 
-    // If resultant pane would be too small, enlarge it.
-
-    // Check upper / left pane
-    if ( newSashPosition < m_minimumPaneSize )
-        newSashPosition = m_minimumPaneSize;
-
-    // Check lower / right pane (check even if sash was just adjusted)
-    if ( newSashPosition > window_size - m_minimumPaneSize )
-        newSashPosition = window_size - m_minimumPaneSize;
-
     // If the result is out of bounds it means minimum size is too big,
     // so split window in half as best compromise.
     if ( newSashPosition < 0 || newSashPosition > window_size )
@@ -793,7 +948,7 @@ void wxSplitterWindow::OnDoubleClick(wxSplitterEvent& event)
     // for compatibility, call the virtual function
     OnDoubleClickSash(event.GetX(), event.GetY());
 
-    if ( GetMinimumPaneSize() == 0 )
+    if ( GetMinimumPaneSize() == 0 || m_permitUnsplitAlways )
     {
         Unsplit();
     }
@@ -803,8 +958,33 @@ void wxSplitterWindow::OnUnsplitEvent(wxSplitterEvent& event)
 {
     wxWindow *win = event.GetWindowBeingRemoved();
 
+    // do it before calling OnUnsplit() which may delete the window
+    win->Show(FALSE);
+
     // for compatibility, call the virtual function
     OnUnsplit(win);
+}
 
-    win->Show(FALSE);
+#if defined(__WXMSW__)
+    #define WXUNUSED_UNLESS_MSW(identifier)    identifier
+#else
+    #define WXUNUSED_UNLESS_MSW(identifier)    WXUNUSED(identifier)
+#endif
+
+void wxSplitterWindow::OnSetCursor(wxSetCursorEvent& WXUNUSED_UNLESS_MSW(event))
+{
+    // this is currently called (and needed) under MSW only...
+#ifdef __WXMSW__
+
+    // if we don't do it, the resizing cursor might be set for child window:
+    // and like this we explicitly say that our cursor should not be used for
+    // children windows which overlap us
+
+    if ( SashHitTest(event.GetX(), event.GetY()) )
+    {
+        // default processing is ok
+        event.Skip();
+    }
+    //else: do nothing, in particular, don't call Skip()
+#endif // wxMSW
 }