remove duplicate deletion

[wxWidgets.git] / src / generic / splitter.cpp

diff --git a/src/generic/splitter.cpp b/src/generic/splitter.cpp
index 12b3dda1bca9f5437ad11c05bab1685a3c468c69..9e680e1748c4d0a3a1f98e6d858b05805655eaa6 100644 (file)
--- a/src/generic/splitter.cpp
+++ b/src/generic/splitter.cpp
@@ -6,26 +6,24 @@
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart and Markus Holzem
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart and Markus Holzem

-// Licence:    wxWindows license
+// Licence:     wxWindows license

 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__

-#pragma implementation "splitter.h"
-// #pragma interface
+    #pragma implementation "splitter.h"

 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

-#include "wx/wx.h"
+    #include "wx/wx.h"

 #endif
 
 #endif
 

-#include <math.h>

 #include <stdlib.h>
 
 #include "wx/string.h"
 #include <stdlib.h>
 
 #include "wx/string.h"


@@ -34,19 +32,29 @@
 
 #if !USE_SHARED_LIBRARY
 IMPLEMENT_DYNAMIC_CLASS(wxSplitterWindow, wxWindow)
 
 #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)
 
 BEGIN_EVENT_TABLE(wxSplitterWindow, wxWindow)
     EVT_PAINT(wxSplitterWindow::OnPaint)
     EVT_SIZE(wxSplitterWindow::OnSize)

+    EVT_IDLE(wxSplitterWindow::OnIdle)

     EVT_MOUSE_EVENTS(wxSplitterWindow::OnMouseEvent)
     EVT_MOUSE_EVENTS(wxSplitterWindow::OnMouseEvent)

+
+    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)

 END_EVENT_TABLE()
 #endif
 
 END_EVENT_TABLE()
 #endif
 

-wxSplitterWindow::wxSplitterWindow(void)
+wxSplitterWindow::wxSplitterWindow()

 {
     m_splitMode = wxSPLIT_VERTICAL;
 {
     m_splitMode = wxSPLIT_VERTICAL;

-    m_windowOne = NULL;
-    m_windowTwo = NULL;
+    m_permitUnsplitAlways = FALSE;
+    m_windowOne = (wxWindow *) NULL;
+    m_windowTwo = (wxWindow *) NULL;

     m_dragMode = wxSPLIT_DRAG_NONE;
     m_oldX = 0;
     m_oldY = 0;
     m_dragMode = wxSPLIT_DRAG_NONE;
     m_oldX = 0;
     m_oldY = 0;


@@ -55,25 +63,30 @@ wxSplitterWindow::wxSplitterWindow(void)
     m_sashSize = 7;
     m_borderSize = 2;
     m_sashPosition = 0;
     m_sashSize = 7;
     m_borderSize = 2;
     m_sashPosition = 0;

-    m_sashCursorWE = NULL;
-    m_sashCursorNS = NULL;
-    m_sashTrackerPen = NULL;
-    m_lightShadowPen = NULL;
-    m_mediumShadowPen = NULL;
-    m_darkShadowPen = NULL;
-    m_faceBrush = NULL;
-    m_facePen = NULL;
-    m_hilightPen = NULL;
+    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;
     m_minimumPaneSize = 0;

+    m_needUpdating = FALSE;

 }
 
 }
 

-wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos,
-    const wxSize& size, long style, const wxString& name)
-  :wxWindow(parent, id, pos, size, style, name)
+wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id,
+                                   const wxPoint& pos,
+                                   const wxSize& size,
+                                   long style,
+                                   const wxString& name)
+                : wxWindow(parent, id, pos, size, style, name)

 {
     m_splitMode = wxSPLIT_VERTICAL;
 {
     m_splitMode = wxSPLIT_VERTICAL;

-    m_windowOne = NULL;
-    m_windowTwo = NULL;
+    m_permitUnsplitAlways = (style & wxSP_PERMIT_UNSPLIT) != 0;
+    m_windowOne = (wxWindow *) NULL;
+    m_windowTwo = (wxWindow *) NULL;

     m_dragMode = wxSPLIT_DRAG_NONE;
     m_oldX = 0;
     m_oldY = 0;
     m_dragMode = wxSPLIT_DRAG_NONE;
     m_oldX = 0;
     m_oldY = 0;


@@ -86,12 +99,12 @@ wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, const wxPoin
     m_sashCursorWE = new wxCursor(wxCURSOR_SIZEWE);
     m_sashCursorNS = new wxCursor(wxCURSOR_SIZENS);
     m_sashTrackerPen = new wxPen(*wxBLACK, 2, wxSOLID);
     m_sashCursorWE = new wxCursor(wxCURSOR_SIZEWE);
     m_sashCursorNS = new wxCursor(wxCURSOR_SIZENS);
     m_sashTrackerPen = new wxPen(*wxBLACK, 2, wxSOLID);

-    m_lightShadowPen = NULL;
-    m_mediumShadowPen = NULL;
-    m_darkShadowPen = NULL;
-    m_faceBrush = NULL;
-    m_facePen = NULL;
-    m_hilightPen = 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;

 
     if ( style & wxSP_3D )
     {
 
     if ( style & wxSP_3D )
     {


@@ -112,13 +125,13 @@ wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, const wxPoin
     // Eventually, we'll respond to colour change messages
     InitColours();
 
     // Eventually, we'll respond to colour change messages
     InitColours();
 

-    SetDoubleClick(TRUE);
-

     // For debugging purposes, to see the background.
 //    SetBackground(wxBLUE_BRUSH);
     // For debugging purposes, to see the background.
 //    SetBackground(wxBLUE_BRUSH);

+
+    m_needUpdating = FALSE;

 }
 
 }
 

-wxSplitterWindow::~wxSplitterWindow(void)
+wxSplitterWindow::~wxSplitterWindow()

 {
     delete m_sashCursorWE;
     delete m_sashCursorNS;
 {
     delete m_sashCursorWE;
     delete m_sashCursorNS;


@@ -140,205 +153,253 @@ void wxSplitterWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
     DrawSash(dc);
 }
 
     DrawSash(dc);
 }
 

+void wxSplitterWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
+{
+    if (m_needUpdating)
+        SizeWindows();
+}
+

 void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
 {
 void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
 {

-    long x, y;
-    event.Position(&x, &y);
+    long x = event.GetX();
+    long y = event.GetY();

 
 

-       if (event.LeftDown())
-       {
+    // reset the cursor
+#ifdef __WXMOTIF__
+    SetCursor(* wxSTANDARD_CURSOR);
+#endif
+#ifdef __WXMSW__
+    SetCursor(wxCursor());
+#endif
+
+
+    if (event.LeftDown())
+    {

         if ( SashHitTest(x, y) )
         {
         if ( SashHitTest(x, y) )
         {

-               CaptureMouse();
-
-           // Required for X to specify that
-               // that we wish to draw on top of all windows
-               // - and we optimise by specifying the area
-               // for creating the overlap window.
-               wxScreenDC::StartDrawingOnTop(this);
-
-            // We don't say we're dragging yet; we leave that
-            // decision for the Dragging() branch, to ensure
-            // the user has dragged a little bit.
-            m_dragMode = wxSPLIT_DRAG_LEFT_DOWN;
-            m_firstX = x;
-            m_firstY = y;
-        }
-       }
-    else if ( event.LeftUp() && m_dragMode == wxSPLIT_DRAG_LEFT_DOWN )
-    {
-        // Wasn't a proper drag
-        ReleaseMouse();
-        wxScreenDC::EndDrawingOnTop();
-        m_dragMode = wxSPLIT_DRAG_NONE;
+            CaptureMouse();

 
 

-        SetCursor(*wxSTANDARD_CURSOR);
-        wxSetCursor(*wxSTANDARD_CURSOR);
+            m_dragMode = wxSPLIT_DRAG_DRAGGING;
+
+            if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0)
+           {
+               DrawSashTracker(x, y);
+           }
+           
+            m_oldX = x;
+            m_oldY = y;
+            return;
+        }

     }
     }

-       else if (event.LeftUp() && m_dragMode == wxSPLIT_DRAG_DRAGGING)
-       {
+    else if (event.LeftUp() && m_dragMode == wxSPLIT_DRAG_DRAGGING)
+    {

         // We can stop dragging now and see what we've got.
         m_dragMode = wxSPLIT_DRAG_NONE;
         // We can stop dragging now and see what we've got.
         m_dragMode = wxSPLIT_DRAG_NONE;

-               ReleaseMouse();
-        // Erase old tracker
-        DrawSashTracker(m_oldX, m_oldY);
+        ReleaseMouse();

 
 

-        // End drawing on top (frees the window used for drawing
-        // over the screen)
-        wxScreenDC::EndDrawingOnTop();
+        // Erase old tracker
+        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

         int w, h;
         int w, h;

-               GetClientSize(&w, &h);
-        if ( m_splitMode == wxSPLIT_VERTICAL )
+        GetClientSize(&w, &h);
+        int window_size = (m_splitMode == wxSPLIT_VERTICAL ? w : h );
+        int new_sash_position =
+            (int) ( m_splitMode == wxSPLIT_VERTICAL ? x : y );
+
+        wxSplitterEvent eventSplitter(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED,
+                                      this);
+        eventSplitter.m_data.pos = new_sash_position;
+        if ( GetEventHandler()->ProcessEvent(eventSplitter) )

         {
         {

-            // First check if we should veto this resize because
-            // the pane size is too small
-            if ( wxMax(x, 0) < m_minimumPaneSize || wxMax((w - x), 0) < m_minimumPaneSize)
+            new_sash_position = eventSplitter.GetSashPosition();
+            if ( new_sash_position == -1 )
+            {
+                // change not allowed

                 return;
                 return;

+            }
+        }

 
 

-            if ( x <= 4 )
+        if ( m_permitUnsplitAlways
+                || m_minimumPaneSize == 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;
             {
                 // We remove the first window from the view
                 wxWindow *removedWindow = m_windowOne;
                 m_windowOne = m_windowTwo;

-                m_windowTwo = NULL;
-
-                OnUnsplit(removedWindow);
+                m_windowTwo = (wxWindow *) NULL;
+                SendUnsplitEvent(removedWindow);

                 m_sashPosition = 0;
             }
                 m_sashPosition = 0;
             }

-            else if ( x >= (w - 4) )
+            else if ( new_sash_position == window_size )

             {
                 // We remove the second window from the view
                 wxWindow *removedWindow = m_windowTwo;
             {
                 // We remove the second window from the view
                 wxWindow *removedWindow = m_windowTwo;

-                m_windowTwo = NULL;
-                OnUnsplit(removedWindow);
+                m_windowTwo = (wxWindow *) NULL;
+                SendUnsplitEvent(removedWindow);

                 m_sashPosition = 0;
             }
             else
             {
                 m_sashPosition = 0;
             }
             else
             {

-                m_sashPosition = x;
+                m_sashPosition = new_sash_position;

             }
         }
         else
         {
             }
         }
         else
         {

-            // First check if we should veto this resize because
-            // the pane size is too small
-            if ( wxMax(y, 0) < m_minimumPaneSize || wxMax((h - y), 0) < m_minimumPaneSize)
-                return;
-
-            if ( y <= 4 )
-            {
-                // We remove the first window from the view
-                wxWindow *removedWindow = m_windowOne;
-                m_windowOne = m_windowTwo;
-                m_windowTwo = NULL;
-
-                OnUnsplit(removedWindow);
-                m_sashPosition = 0;
-            }
-            else if ( y >= (h - 4) )
-            {
-                // We remove the second window from the view
-                wxWindow *removedWindow = m_windowTwo;
-                m_windowTwo = NULL;
-                OnUnsplit(removedWindow);
-                m_sashPosition = 0;
-            }
-            else
-            {
-                m_sashPosition = y;
-            }
+            m_sashPosition = new_sash_position;

         }
         }

+

         SizeWindows();
         SizeWindows();

-       }
-       else if (event.Moving() && !event.Dragging())
-       {
+    }  // left up && dragging
+    else if (event.Moving() && !event.Dragging())
+    {

         // Just change the cursor if required
         if ( SashHitTest(x, y) )
         {
         // Just change the cursor if required
         if ( SashHitTest(x, y) )
         {

-               if ( m_splitMode == wxSPLIT_VERTICAL )
+                if ( m_splitMode == wxSPLIT_VERTICAL )

                 {
                 {

-                       SetCursor(*m_sashCursorWE);
-                    // Windows needs the following
-                       wxSetCursor(*m_sashCursorWE);
+                    SetCursor(*m_sashCursorWE);

                 }
                 else
                 {
                 }
                 else
                 {

-                       SetCursor(*m_sashCursorNS);
-                       wxSetCursor(*m_sashCursorNS);
+                    SetCursor(*m_sashCursorNS);

                 }
         }
                 }
         }

+#ifdef __WXGTK__

         else
         {
         else
         {

-           SetCursor(*wxSTANDARD_CURSOR);
-           wxSetCursor(*wxSTANDARD_CURSOR);
+            // where else do we unset the cursor?
+            SetCursor(* wxSTANDARD_CURSOR);

         }
         }

-       }
-       else if ( (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) ||
-              (event.Dragging() && SashHitTest(x, y, 4)) )
-       {
-         if ( m_splitMode == wxSPLIT_VERTICAL )
-         {
-               SetCursor(*m_sashCursorWE);
-               wxSetCursor(*m_sashCursorWE);
-         }
-         else
-         {
-               SetCursor(*m_sashCursorNS);
-               wxSetCursor(*m_sashCursorNS);
-         }
-
-        // Detect that this is really a drag: we've moved more than 1 pixel either way
-        if ((m_dragMode == wxSPLIT_DRAG_LEFT_DOWN) &&
-//                (abs((int)x - m_firstX) > 1 || abs((int)y - m_firstY) > 1) )
-                (abs((int)x - m_firstX) > 0 || abs((int)y - m_firstY) > 1) )
+#endif // __WXGTK__
+    }
+    else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) 
+    {
+        // 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) )

         {
         {

-            m_dragMode = wxSPLIT_DRAG_DRAGGING;
-            DrawSashTracker(x, y);
+            new_sash_position = eventSplitter.GetSashPosition();
+            if ( new_sash_position == -1 )
+            {
+                // change not allowed
+                return;
+            }

         }
         }

-        else
-        {
-          if ( m_dragMode == wxSPLIT_DRAG_DRAGGING )
-          {
-            // Erase old tracker
+
+        // Erase old tracker
+        if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0)
+       {

             DrawSashTracker(m_oldX, m_oldY);
             DrawSashTracker(m_oldX, m_oldY);

+       }
+
+        if (m_splitMode == wxSPLIT_VERTICAL)
+            x = new_sash_position;
+        else
+            y = new_sash_position;

 
 

-            // Draw new one
-            DrawSashTracker(x, y);
-          }
+        if (new_sash_position != -1)
+        {
+            // Only modify if permitted
+            m_oldX = x;
+            m_oldY = y;

         }
         }

-        m_oldX = x;
-        m_oldY = y;
+
+#ifdef __WXMSW__
+        // As we captured the mouse, we may get the mouse events from outside
+        // our window - for example, negative values in x, y. This has a weird
+        // consequence under MSW where we use unsigned values sometimes and
+        // 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.
+        if ( (short)m_oldX < 0 )
+            m_oldX = 0;
+        if ( (short)m_oldY < 0 )
+            m_oldY = 0;
+#endif // __WXMSW__
+
+        // Draw new one
+        if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0)
+       {
+            DrawSashTracker(m_oldX, m_oldY);
+       }
+       else
+       {
+            m_sashPosition = new_sash_position;
+           m_needUpdating = TRUE;

        }
        }

+    }

     else if ( event.LeftDClick() )
     {
     else if ( event.LeftDClick() )
     {

-        OnDoubleClickSash(x, y);
+        wxSplitterEvent eventSplitter(wxEVT_COMMAND_SPLITTER_DOUBLECLICKED,
+                                      this);
+        eventSplitter.m_data.pt.x = x;
+        eventSplitter.m_data.pt.y = y;
+
+        (void)GetEventHandler()->ProcessEvent(eventSplitter);

     }
     }

+}
+
+void wxSplitterWindow::OnSize(wxSizeEvent& event)
+{
+    // 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() )
+    {
+        parent = parent->GetParent();
+    }
+
+    bool iconized = FALSE;
+    wxFrame *frame = wxDynamicCast(parent, wxFrame);
+    if ( frame )
+        iconized = frame->IsIconized();

     else
     {
     else
     {

-        SetCursor(*wxSTANDARD_CURSOR);
-        wxSetCursor(*wxSTANDARD_CURSOR);
+        wxDialog *dialog = wxDynamicCast(parent, wxDialog);
+        if ( dialog )
+            iconized = dialog->IsIconized();
+        else
+            wxFAIL_MSG(_T("should have a top level frame or dialog parent!"));

     }
     }

-}

 
 

-void wxSplitterWindow::OnSize(wxSizeEvent& WXUNUSED(event))
-{
-    int cw, ch;
-    GetClientSize( &cw, &ch );
-    if ( m_windowTwo )
+    if ( iconized )

     {
     {

-        if ( m_splitMode == wxSPLIT_VERTICAL )
-        {
-            if ( m_sashPosition >= (cw - 5) )
-                m_sashPosition = wxMax(10, cw - 40);
-        }
-        if ( m_splitMode == wxSPLIT_HORIZONTAL )
+        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)
 }
 
 bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance)


@@ -429,8 +490,8 @@ void wxSplitterWindow::DrawSash(wxDC& dc)
             dc.DrawLine(m_sashPosition+m_sashSize-2, 1, m_sashPosition+m_sashSize-2, h-1);
 
             dc.SetPen(*m_darkShadowPen);
             dc.DrawLine(m_sashPosition+m_sashSize-2, 1, m_sashPosition+m_sashSize-2, h-1);
 
             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, 2, m_sashPosition+m_sashSize-1, h-2);
+        }

         else
         {
             dc.SetPen(*m_facePen);
         else
         {
             dc.SetPen(*m_facePen);


@@ -524,7 +585,7 @@ void wxSplitterWindow::DrawSashTracker(int x, int y)
     ClientToScreen(&x1, &y1);
     ClientToScreen(&x2, &y2);
 
     ClientToScreen(&x1, &y1);
     ClientToScreen(&x2, &y2);
 

-    screenDC.SetLogicalFunction(wxXOR);
+    screenDC.SetLogicalFunction(wxINVERT);

     screenDC.SetPen(*m_sashTrackerPen);
     screenDC.SetBrush(*wxTRANSPARENT_BRUSH);
 
     screenDC.SetPen(*m_sashTrackerPen);
     screenDC.SetBrush(*wxTRANSPARENT_BRUSH);
 


@@ -539,7 +600,7 @@ void wxSplitterWindow::DrawSashTracker(int x, int y)
 // Position and size subwindows.
 // Note that the border size applies to each subwindow, not
 // including the edges next to the sash.
 // Position and size subwindows.
 // Note that the border size applies to each subwindow, not
 // including the edges next to the sash.

-void wxSplitterWindow::SizeWindows(void)
+void wxSplitterWindow::SizeWindows()

 {
     int w, h;
     GetClientSize(&w, &h);
 {
     int w, h;
     GetClientSize(&w, &h);


@@ -547,6 +608,9 @@ void wxSplitterWindow::SizeWindows(void)
     if ( m_windowOne && !m_windowTwo )
     {
         m_windowOne->SetSize(m_borderSize, m_borderSize, w - 2*m_borderSize, h - 2*m_borderSize);
     if ( m_windowOne && !m_windowTwo )
     {
         m_windowOne->SetSize(m_borderSize, m_borderSize, w - 2*m_borderSize, h - 2*m_borderSize);

+       
+       if (m_windowOne->GetAutoLayout())
+           m_windowOne->Layout();

     }
     else if ( m_windowOne && m_windowTwo )
     {
     }
     else if ( m_windowOne && m_windowTwo )
     {


@@ -562,10 +626,13 @@ void wxSplitterWindow::SizeWindows(void)
             int w2 = w - 2*m_borderSize - m_sashSize - w1;
             int h2 = h - 2*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);
+            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();

         }
         else
         {
         }
         else
         {


@@ -573,6 +640,11 @@ void wxSplitterWindow::SizeWindows(void)
                 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));
                 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();

         }
     }
     wxClientDC dc(this);
         }
     }
     wxClientDC dc(this);


@@ -584,7 +656,7 @@ void wxSplitterWindow::SizeWindows(void)
 void wxSplitterWindow::Initialize(wxWindow *window)
 {
     m_windowOne = window;
 void wxSplitterWindow::Initialize(wxWindow *window)
 {
     m_windowOne = window;

-    m_windowTwo = NULL;
+    m_windowTwo = (wxWindow *) NULL;

     m_sashPosition = 0;
 }
 
     m_sashPosition = 0;
 }
 


@@ -596,13 +668,18 @@ bool wxSplitterWindow::SplitVertically(wxWindow *window1, wxWindow *window2, int
     if ( IsSplit() )
         return FALSE;
 
     if ( IsSplit() )
         return FALSE;
 

+    int w, h;
+    GetClientSize(&w, &h);
+

     m_splitMode = wxSPLIT_VERTICAL;
     m_windowOne = window1;
     m_windowTwo = window2;
     m_splitMode = wxSPLIT_VERTICAL;
     m_windowOne = window1;
     m_windowTwo = window2;

-    if ( sashPosition == -1 )
-        m_sashPosition = 100;
-    else
+    if ( sashPosition > 0 )

         m_sashPosition = sashPosition;
         m_sashPosition = sashPosition;

+    else if ( sashPosition < 0 )
+        m_sashPosition = w - sashPosition;
+    else    // default
+        m_sashPosition = w/2;

 
     SizeWindows();
 
 
     SizeWindows();
 


@@ -614,13 +691,18 @@ bool wxSplitterWindow::SplitHorizontally(wxWindow *window1, wxWindow *window2, i
     if ( IsSplit() )
         return FALSE;
 
     if ( IsSplit() )
         return FALSE;
 

+    int w, h;
+    GetClientSize(&w, &h);
+

     m_splitMode = wxSPLIT_HORIZONTAL;
     m_windowOne = window1;
     m_windowTwo = window2;
     m_splitMode = wxSPLIT_HORIZONTAL;
     m_windowOne = window1;
     m_windowTwo = window2;

-    if ( sashPosition == -1 )
-        m_sashPosition = 100;
-    else
+    if ( sashPosition > 0 )

         m_sashPosition = sashPosition;
         m_sashPosition = sashPosition;

+    else if ( sashPosition < 0 )
+        m_sashPosition = h - sashPosition;
+    else    // default
+        m_sashPosition = h/2;

 
     SizeWindows();
 
 
     SizeWindows();
 


@@ -635,95 +717,191 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove)
     if ( ! IsSplit() )
         return FALSE;
 
     if ( ! IsSplit() )
         return FALSE;
 

+    wxWindow *win = NULL;

     if ( toRemove == NULL || toRemove == m_windowTwo)
     {
     if ( toRemove == NULL || toRemove == m_windowTwo)
     {

-        wxWindow *win = m_windowTwo ;
-        m_windowTwo = NULL;
-        m_sashPosition = 0;
-        OnUnsplit(win);
-        SizeWindows();
+        win = m_windowTwo ;
+        m_windowTwo = (wxWindow *) NULL;

     }
     else if ( toRemove == m_windowOne )
     {
     }
     else if ( toRemove == m_windowOne )
     {

-        wxWindow *win = m_windowOne ;
+        win = m_windowOne ;

         m_windowOne = m_windowTwo;
         m_windowOne = m_windowTwo;

-        m_windowTwo = NULL;
-        m_sashPosition = 0;
-        OnUnsplit(win);
-        SizeWindows();
+        m_windowTwo = (wxWindow *) NULL;

     }
     else
     }
     else

+    {
+        wxFAIL_MSG(_T("splitter: attempt to remove a non-existent window"));
+

         return FALSE;
         return FALSE;

+    }
+
+    SendUnsplitEvent(win);
+    m_sashPosition = 0;
+    SizeWindows();

 
     return TRUE;
 }
 
 
     return TRUE;
 }
 

-void wxSplitterWindow::SetSashPosition(int position, bool redraw)
+// Replace a window with another one
+bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew)

 {
 {

-    m_sashPosition = position;
+    wxCHECK_MSG( winOld, FALSE, _T("use one of Split() functions instead") );
+    wxCHECK_MSG( winNew, FALSE, _T("use Unsplit() functions instead") );

 
 

-    if ( redraw )
+    if ( winOld == m_windowTwo )

     {
     {

-        SizeWindows();
+        m_windowTwo = winNew;

     }
     }

+    else if ( winOld == m_windowOne )
+    {
+        m_windowOne = winNew;
+    }
+    else
+    {
+        wxFAIL_MSG(_T("splitter: attempt to replace a non-existent window"));
+
+        return FALSE;
+    }
+
+    SizeWindows();
+
+    return TRUE;

 }
 
 }
 

-// Called when the sash is double-clicked.
-// The default behaviour is to remove the sash if the
-// minimum pane size is zero.
-void wxSplitterWindow::OnDoubleClickSash(int WXUNUSED(x), int WXUNUSED(y) )
+void wxSplitterWindow::SetSashPosition(int position, bool redraw)

 {
 {

-    if ( GetMinimumPaneSize() == 0 )
+    m_sashPosition = position;
+
+    if ( redraw )

     {
     {

-        Unsplit();
+        SizeWindows();

     }
 }
 
 // Initialize colours
     }
 }
 
 // Initialize colours

-void wxSplitterWindow::InitColours(void)
+void wxSplitterWindow::InitColours()

 {
 {

-    if ( m_facePen )
-        delete m_facePen;
-    if ( m_faceBrush )
-        delete m_faceBrush;
-    if ( m_mediumShadowPen )
-        delete m_mediumShadowPen;
-    if ( m_darkShadowPen )
-        delete m_darkShadowPen;
-    if ( m_lightShadowPen )
-        delete m_lightShadowPen;
-    if ( m_hilightPen )
-        delete m_hilightPen;
+    wxDELETE( m_facePen );
+    wxDELETE( m_faceBrush );
+    wxDELETE( m_mediumShadowPen );
+    wxDELETE( m_darkShadowPen );
+    wxDELETE( m_lightShadowPen );
+    wxDELETE( m_hilightPen );

 
     // Shadow colours
 #if defined(__WIN95__)
 
     // Shadow colours
 #if defined(__WIN95__)

-//    COLORREF ref = ::GetSysColor(COLOR_3DFACE); // Normally light grey

     wxColour faceColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
     m_facePen = new wxPen(faceColour, 1, wxSOLID);
     m_faceBrush = new wxBrush(faceColour, wxSOLID);
 
     wxColour faceColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
     m_facePen = new wxPen(faceColour, 1, wxSOLID);
     m_faceBrush = new wxBrush(faceColour, wxSOLID);
 

-//    ref = ::GetSysColor(COLOR_3DSHADOW); // Normally dark grey

     wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW));
     m_mediumShadowPen = new wxPen(mediumShadowColour, 1, wxSOLID);
 
     wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW));
     m_mediumShadowPen = new wxPen(mediumShadowColour, 1, wxSOLID);
 

-//    ref = ::GetSysColor(COLOR_3DDKSHADOW); // Normally black

     wxColour darkShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DDKSHADOW));
     m_darkShadowPen = new wxPen(darkShadowColour, 1, wxSOLID);
 
     wxColour darkShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DDKSHADOW));
     m_darkShadowPen = new wxPen(darkShadowColour, 1, wxSOLID);
 

-//    ref = ::GetSysColor(COLOR_3DLIGHT); // Normally light grey

     wxColour lightShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT));
     m_lightShadowPen = new wxPen(lightShadowColour, 1, wxSOLID);
 
     wxColour lightShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT));
     m_lightShadowPen = new wxPen(lightShadowColour, 1, wxSOLID);
 

-//    ref = ::GetSysColor(COLOR_3DHILIGHT); // Normally white

     wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
     m_hilightPen = new wxPen(hilightColour, 1, wxSOLID);
     wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
     m_hilightPen = new wxPen(hilightColour, 1, wxSOLID);

-#else
+#else // !Win32

     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);
     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
+#endif // Win32/!Win32
+}
+
+void wxSplitterWindow::SendUnsplitEvent(wxWindow *winRemoved)
+{
+    wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_UNSPLIT, this);
+    event.m_data.win = winRemoved;
+
+    (void)GetEventHandler()->ProcessEvent(event);

 }
 
 }
 

+// ---------------------------------------------------------------------------
+// splitter event handlers
+// ---------------------------------------------------------------------------
+
+void wxSplitterWindow::OnSashPosChanged(wxSplitterEvent& event)
+{
+    // If within UNSPLIT_THRESHOLD from edge, set to edge to cause closure.
+    const int UNSPLIT_THRESHOLD = 4;
+
+    int newSashPosition = event.GetSashPosition();
+
+    // Obtain relevant window dimension for bottom / right threshold check
+    int w, h;
+    GetClientSize(&w, &h);
+    int window_size = (m_splitMode == wxSPLIT_VERTICAL) ? w : h ;
+
+    bool unsplit_scenario = FALSE;
+    if ( m_permitUnsplitAlways
+            || m_minimumPaneSize == 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;
+        }
+    }
+
+    if ( !unsplit_scenario )
+    {
+        // 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 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 )
+        newSashPosition = window_size / 2;
+
+    // for compatibility, call the virtual function
+    if ( !OnSashPositionChange(newSashPosition) )
+    {
+        newSashPosition = -1;
+    }
+
+    event.SetSashPosition(newSashPosition);
+}
+
+// Called when the sash is double-clicked. The default behaviour is to remove
+// the sash if the minimum pane size is zero.
+void wxSplitterWindow::OnDoubleClick(wxSplitterEvent& event)
+{
+    // for compatibility, call the virtual function
+    OnDoubleClickSash(event.GetX(), event.GetY());
+
+    if ( GetMinimumPaneSize() == 0
+        || m_permitUnsplitAlways)
+    {
+        Unsplit();
+    }
+}
+
+void wxSplitterWindow::OnUnsplitEvent(wxSplitterEvent& event)
+{
+    wxWindow *win = event.GetWindowBeingRemoved();
+
+    // for compatibility, call the virtual function
+    OnUnsplit(win);
+
+    win->Show(FALSE);
+}