]> git.saurik.com Git - wxWidgets.git/blobdiff - src/generic/splitter.cpp
Augmented version to b5
[wxWidgets.git] / src / generic / splitter.cpp
index 44243d300b4a9e46f17ab5aa4ac4c6586bed9fc7..69ddce49e00d97d80ba5fa424509495b2d528db2 100644 (file)
@@ -24,7 +24,6 @@
     #include "wx/wx.h"
 #endif
 
-#include <math.h>
 #include <stdlib.h>
 
 #include "wx/string.h"
 
 #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_MOUSE_EVENTS(wxSplitterWindow::OnMouseEvent)
+
+    EVT_SPLITTER_SASH_POS_CHANGED(-1, wxSplitterWindow::OnSashPosChanged)
+    EVT_SPLITTER_DCLICK(-1,           wxSplitterWindow::OnDoubleClick)
+    EVT_SPLITTER_UNSPLIT(-1,          wxSplitterWindow::OnUnsplitEvent)
 END_EVENT_TABLE()
 #endif
 
@@ -140,13 +144,29 @@ void wxSplitterWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
     DrawSash(dc);
 }
 
+
 void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
 {
-    long x, y;
-    event.Position(&x, &y);
+    long x = event.GetX();
+    long y = event.GetY();
 
     // reset the cursor
+#ifdef __WXMOTIF__
+    SetCursor(* wxSTANDARD_CURSOR);
+#endif
+#ifdef __WXMSW__
     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 (event.LeftDown())
     {
@@ -171,64 +191,49 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
         // Erase old tracker
         DrawSashTracker(m_oldX, m_oldY);
 
+        // Obtain window size. We are only interested in the dimension the sash
+        // splits up
         int w, h;
         GetClientSize(&w, &h);
-        if ( m_splitMode == wxSPLIT_VERTICAL )
+        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) )
         {
-            if ( !OnSashPositionChange(x) )
-                return;
-
-            if ( x <= 4 )
+            new_sash_position = eventSplitter.GetSashPosition();
+            if ( new_sash_position == -1 )
             {
-                // We remove the first window from the view
-                wxWindow *removedWindow = m_windowOne;
-                m_windowOne = m_windowTwo;
-                m_windowTwo = (wxWindow *) NULL;
-
-                OnUnsplit(removedWindow);
-                m_sashPosition = 0;
-            }
-            else if ( x >= (w - 4) )
-            {
-                // We remove the second window from the view
-                wxWindow *removedWindow = m_windowTwo;
-                m_windowTwo = (wxWindow *) NULL;
-                OnUnsplit(removedWindow);
-                m_sashPosition = 0;
-            }
-            else
-            {
-                m_sashPosition = x;
+                // change not allowed
+                return;
             }
         }
-        else  // m_splitMode == wxSPLIT_VERTICAL
-        {
-            if ( !OnSashPositionChange(y) )
-                return;
 
-            if ( y <= 4 )
-            {
-                // We remove the first window from the view
-                wxWindow *removedWindow = m_windowOne;
-                m_windowOne = m_windowTwo;
-                m_windowTwo = (wxWindow *) NULL;
+        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;
+        }
 
-                OnUnsplit(removedWindow);
-                m_sashPosition = 0;
-            }
-            else if ( y >= (h - 4) )
-            {
-                // We remove the second window from the view
-                wxWindow *removedWindow = m_windowTwo;
-                m_windowTwo = (wxWindow *) NULL;
-                OnUnsplit(removedWindow);
-                m_sashPosition = 0;
-            }
-            else
-            {
-                m_sashPosition = y;
-            }
-        } // m_splitMode == wxSPLIT_VERTICAL
         SizeWindows();
     }  // left up && dragging
     else if (event.Moving() && !event.Dragging())
@@ -245,6 +250,13 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
                     SetCursor(*m_sashCursorNS);
                 }
         }
+#ifdef __WXGTK__
+        else
+        {
+            // where else do we unset the cursor?
+            SetCursor(* wxSTANDARD_CURSOR);
+        }
+#endif // __WXGTK__
     }
     else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) 
     {
@@ -259,7 +271,12 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
     }
     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);
     }
 }
 
@@ -489,6 +506,9 @@ void wxSplitterWindow::SizeWindows()
     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 )
     {
@@ -506,6 +526,11 @@ void wxSplitterWindow::SizeWindows()
 
             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
         {
@@ -513,6 +538,11 @@ void wxSplitterWindow::SizeWindows()
                 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);
@@ -599,12 +629,12 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove)
     }
     else
     {
-        wxFAIL_MSG("splitter: attempt to remove a non-existent window");
+        wxFAIL_MSG(_T("splitter: attempt to remove a non-existent window"));
 
         return FALSE;
     }
 
-    OnUnsplit(win);
+    SendUnsplitEvent(win);
     m_sashPosition = 0;
     SizeWindows();
 
@@ -614,8 +644,8 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove)
 // Replace a window with another one
 bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew)
 {
-    wxCHECK_MSG( winOld, FALSE, "use one of Split() functions instead" );
-    wxCHECK_MSG( winNew, FALSE, "use Unsplit() functions instead" );
+    wxCHECK_MSG( winOld, FALSE, _T("use one of Split() functions instead") );
+    wxCHECK_MSG( winNew, FALSE, _T("use Unsplit() functions instead") );
 
     if ( winOld == m_windowTwo )
     {
@@ -627,7 +657,7 @@ bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew)
     }
     else
     {
-        wxFAIL_MSG("splitter: attempt to replace a non-existent window");
+        wxFAIL_MSG(_T("splitter: attempt to replace a non-existent window"));
 
         return FALSE;
     }
@@ -647,42 +677,6 @@ void wxSplitterWindow::SetSashPosition(int position, bool redraw)
     }
 }
 
-bool wxSplitterWindow::OnSashPositionChange(int newSashPosition)
-{
-  // is the left/upper pane too small?
-  if ( newSashPosition < m_minimumPaneSize )
-    return NULL;
-
-  // is the right/lower pane too small?
-  int w, h;
-  GetClientSize(&w, &h);
-
-  if ( m_splitMode == wxSPLIT_VERTICAL )
-  {
-    if ( w - newSashPosition < m_minimumPaneSize )
-      return FALSE;
-  }
-  else // m_splitMode = wxSPLIT_HORIZONTAL
-  {
-    if ( h - newSashPosition < m_minimumPaneSize )
-      return FALSE;
-  }
-
-  // it's ok to move sash
-  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) )
-{
-    if ( GetMinimumPaneSize() == 0 )
-    {
-        Unsplit();
-    }
-}
-
 // Initialize colours
 void wxSplitterWindow::InitColours()
 {
@@ -720,3 +714,84 @@ void wxSplitterWindow::InitColours()
 #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 ;
+
+    if ( newSashPosition <= UNSPLIT_THRESHOLD )
+    {
+        // threshold top / left check
+        newSashPosition = 0;
+    }
+    else if ( newSashPosition >= window_size - UNSPLIT_THRESHOLD )
+    {
+        // threshold bottom/right check
+        newSashPosition = window_size;
+    }
+
+    // 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 )
+        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 )
+    {
+        Unsplit();
+    }
+}
+
+void wxSplitterWindow::OnUnsplitEvent(wxSplitterEvent& event)
+{
+    wxWindow *win = event.GetWindowBeingRemoved();
+
+    // for compatibility, call the virtual function
+    OnUnsplit(win);
+
+    win->Show(FALSE);
+}