new file added

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

diff --git a/src/generic/scrlwing.cpp b/src/generic/scrlwing.cpp
index 6244d494a0400be6cbc5de450b2a22d51044dd5e..81dedd9875bf5ff84381ffb0d5956fce104eab55 100644 (file)
--- a/src/generic/scrlwing.cpp
+++ b/src/generic/scrlwing.cpp
@@ -343,6 +343,8 @@ wxScrollHelperBase::wxScrollHelperBase(wxWindow *win)
     m_xScrollingEnabled =
     m_yScrollingEnabled = true;
 
+    m_kbdScrollingEnabled = true;
+
     m_scaleX =
     m_scaleY = 1.0;
 #if wxUSE_MOUSEWHEEL
@@ -383,16 +385,17 @@ void wxScrollHelperBase::SetScrollbars(int pixelsPerUnitX,
                                        int yPos,
                                        bool noRefresh)
 {
-    int xpos, ypos;
+    // Convert positions expressed in scroll units to positions in pixels.
+    int xPosInPixels = (xPos + m_xScrollPosition)*m_xScrollPixelsPerLine,
+        yPosInPixels = (yPos + m_yScrollPosition)*m_yScrollPixelsPerLine;
 
-    CalcUnscrolledPosition(xPos, yPos, &xpos, &ypos);
     bool do_refresh =
     (
       (noUnitsX != 0 && m_xScrollLines == 0) ||
-      (noUnitsX < m_xScrollLines && xpos > pixelsPerUnitX * noUnitsX) ||
+      (noUnitsX < m_xScrollLines && xPosInPixels > pixelsPerUnitX * noUnitsX) ||
 
       (noUnitsY != 0 && m_yScrollLines == 0) ||
-      (noUnitsY < m_yScrollLines && ypos > pixelsPerUnitY * noUnitsY) ||
+      (noUnitsY < m_yScrollLines && yPosInPixels > pixelsPerUnitY * noUnitsY) ||
       (xPos != m_xScrollPosition) ||
       (yPos != m_yScrollPosition)
     );
@@ -844,6 +847,12 @@ void wxScrollHelperBase::HandleOnPaint(wxPaintEvent& WXUNUSED(event))
 // this they always have the priority
 void wxScrollHelperBase::HandleOnChar(wxKeyEvent& event)
 {
+    if ( !m_kbdScrollingEnabled )
+    {
+        event.Skip();
+        return;
+    }
+
     // prepare the event this key press maps to
     wxScrollWinEvent newEvent;
 
@@ -926,11 +935,7 @@ bool wxScrollHelperBase::SendAutoScrollEvents(wxScrollWinEvent& event) const
 void wxScrollHelperBase::StopAutoScrolling()
 {
 #if wxUSE_TIMER
-    if ( m_timerAutoScroll )
-    {
-        delete m_timerAutoScroll;
-        m_timerAutoScroll = NULL;
-    }
+    wxDELETE(m_timerAutoScroll);
 #endif
 }
 
@@ -1107,7 +1112,7 @@ void wxScrollHelperBase::HandleOnChildFocus(wxChildFocusEvent& event)
     // part of a wxComboCtrl visible and the button would still be outside the
     // scrolled area.  But do so only if the parent fits *entirely* inside the
     // scrolled window. In other situations, such as nested wxPanel or
-    // wxScrolledWindows, the parent might be way to big to fit inside the
+    // wxScrolledWindows, the parent might be way too big to fit inside the
     // scrolled window. If that is the case, then make only the focused window
     // visible
     if ( win->GetParent() != m_targetWindow)