Fixed CoordToRowOrCol according to Patch 607387.

Reverted the "Prevented dragging dividers outside cells" change which just
        worked around the symptoms of the bug in CoordToRowOrCol.
Removed posssibility to resize columns even from below the grid or rows from
        the right of the grid - that kind of "dragging dividers" wasn't even
        prevented by the previous change (according to Patch 607387).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@17141 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/generic/grid.cpp b/src/generic/grid.cpp
index 1685c4030c8a0e09730d2d4266a16002bde7704c..19025bf5c2b5b1a3a48b95c0b000ce915491930f 100644 (file)
--- a/src/generic/grid.cpp
+++ b/src/generic/grid.cpp
@@ -3092,7 +3092,7 @@ bool wxGridStringTable::DeleteRows( size_t pos, size_t numRows )
 
     if ( numRows >= curNumRows )
     {
-        m_data.Clear();  // don't release memory just yet
+        m_data.Clear();
     }
     else
     {
@@ -5308,6 +5308,13 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
     //
     else if ( event.Moving() && !event.IsButton() )
     {
+        if( coords.GetRow() < 0 || coords.GetCol() < 0 )
+        {
+            // out of grid cell area
+            ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
+            return;
+        }
+
         int dragRow = YToEdgeOfRow( y );
         int dragCol = XToEdgeOfCol( x );
 
@@ -5320,7 +5327,7 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
             return;
         }
 
-        if ( dragRow >= 0 && dragRow < GetNumberRows())
+        if ( dragRow >= 0 )
         {
             m_dragRowOrCol = dragRow;
 
@@ -5338,7 +5345,7 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
             return;
         }
 
-        if ( dragCol >= 0 && dragCol < GetNumberCols())
+        if ( dragCol >= 0 )
         {
             m_dragRowOrCol = dragCol;
 
@@ -7331,11 +7338,12 @@ static int CoordToRowOrCol(int coord, int defaultDist, int minDist,
         defaultDist = 1;
     size_t i_max = coord / defaultDist,
            i_min = 0;
+
     if (BorderArray.IsEmpty())
     {
-        if((int) i_max <= nMax)
+        if((int) i_max < nMax)
             return i_max;
-        return maxOnOverflow ? (int)i_max : -1;
+        return maxOnOverflow ? nMax - 1 : -1;
     }
 
     if ( i_max >= BorderArray.GetCount())