removed empty and unused CalculateScrollbar() method

[wxWidgets.git] / src / msw / scrolbar.cpp

diff --git a/src/msw/scrolbar.cpp b/src/msw/scrolbar.cpp
index 9c9da3082d599bcc7f709e131a36c4085b45354a..d892916568a3b49d231859ed6de19114d05e35b3 100644 (file)
--- a/src/msw/scrolbar.cpp
+++ b/src/msw/scrolbar.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        msw/scrolbar.cpp
+// Name:        src/msw/scrolbar.cpp
 // Purpose:     wxScrollBar
 // Author:      Julian Smart
 // Modified by:
@@ -9,10 +9,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "scrolbar.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -22,13 +18,14 @@
 
 #if wxUSE_SCROLLBAR
 
+#include "wx/scrolbar.h"
+
 #ifndef WX_PRECOMP
     #include "wx/utils.h"
+    #include "wx/settings.h"
 #endif
 
-#include "wx/scrolbar.h"
 #include "wx/msw/private.h"
-#include "wx/settings.h"
 
 #if wxUSE_EXTENDED_RTTI
 WX_DEFINE_FLAGS( wxScrollBarStyle )
@@ -69,7 +66,7 @@ wxEND_FLAGS( wxScrollBarStyle )
 IMPLEMENT_DYNAMIC_CLASS_XTI(wxScrollBar, wxControl,"wx/scrolbar.h")
 
 wxBEGIN_PROPERTIES_TABLE(wxScrollBar)
-    wxEVENT_RANGE_PROPERTY( Scroll , wxEVT_SCROLL_TOP , wxEVT_SCROLL_ENDSCROLL , wxScrollEvent )
+    wxEVENT_RANGE_PROPERTY( Scroll , wxEVT_SCROLL_TOP , wxEVT_SCROLL_CHANGED , wxScrollEvent )
 
     wxPROPERTY( ThumbPosition , int , SetThumbPosition, GetThumbPosition, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
     wxPROPERTY( Range , int , SetRange, GetRange, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
@@ -150,25 +147,23 @@ bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
     }
 #endif
 
-#if defined(__WIN95__)
     // A page size greater than one has the effect of reducing the effective
     // range, therefore the range has already been boosted artificially - so
     // reduce it again.
     if ( m_pageSize > 1 )
         maxPos -= (m_pageSize - 1);
-#endif // __WIN95__
 
     wxEventType scrollEvent = wxEVT_NULL;
 
     int nScrollInc;
     switch ( wParam )
     {
-        case SB_BOTTOM:
+        case SB_TOP:
             nScrollInc = maxPos - position;
             scrollEvent = wxEVT_SCROLL_TOP;
             break;
 
-        case SB_TOP:
+        case SB_BOTTOM:
             nScrollInc = -position;
             scrollEvent = wxEVT_SCROLL_BOTTOM;
             break;
@@ -205,7 +200,7 @@ bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
 
         case SB_ENDSCROLL:
             nScrollInc = 0;
-            scrollEvent = wxEVT_SCROLL_ENDSCROLL;
+            scrollEvent = wxEVT_SCROLL_CHANGED;
             break;
 
         default:
@@ -224,7 +219,7 @@ bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
         SetThumbPosition(position);
     }
     else if ( scrollEvent != wxEVT_SCROLL_THUMBRELEASE &&
-                scrollEvent != wxEVT_SCROLL_ENDSCROLL )
+                scrollEvent != wxEVT_SCROLL_CHANGED )
     {
         // don't process the event if there is no displacement,
         // unless this is a thumb release or end scroll event.
@@ -241,7 +236,6 @@ bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
 
 void wxScrollBar::SetThumbPosition(int viewStart)
 {
-#if defined(__WIN95__)
     SCROLLINFO info;
     info.cbSize = sizeof(SCROLLINFO);
     info.nPage = 0;
@@ -250,9 +244,6 @@ void wxScrollBar::SetThumbPosition(int viewStart)
     info.fMask = SIF_POS ;
 
     ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, TRUE);
-#else
-    ::SetScrollPos((HWND) GetHWND(), SB_CTL, viewStart, TRUE);
-#endif
 }
 
 int wxScrollBar::GetThumbPosition(void) const
@@ -273,36 +264,31 @@ int wxScrollBar::GetThumbPosition(void) const
 void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
     bool refresh)
 {
-  m_viewSize = pageSize;
-  m_pageSize = thumbSize;
-  m_objectSize = range;
-
-  // The range (number of scroll steps) is the
-  // object length minus the page size.
-  int range1 = wxMax((m_objectSize - m_pageSize), 0) ;
-
-#if defined(__WIN95__)
-  // Try to adjust the range to cope with page size > 1
-  // (see comment for SetPageLength)
-  if ( m_pageSize > 1 )
-  {
-    range1 += (m_pageSize - 1);
-  }
-
-  SCROLLINFO info;
-  info.cbSize = sizeof(SCROLLINFO);
-  info.nPage = m_pageSize;
-  info.nMin = 0;
-  info.nMax = range1;
-  info.nPos = position;
-
-  info.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;
-
-  ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, refresh);
-#else
-  ::SetScrollPos((HWND)m_hWnd, SB_CTL, position, refresh);
-  ::SetScrollRange((HWND)m_hWnd, SB_CTL, 0, range1, refresh);
-#endif
+    m_viewSize = pageSize;
+    m_pageSize = thumbSize;
+    m_objectSize = range;
+
+    // The range (number of scroll steps) is the
+    // object length minus the page size.
+    int range1 = wxMax((m_objectSize - m_pageSize), 0) ;
+
+    // Try to adjust the range to cope with page size > 1
+    // (see comment for SetPageLength)
+    if ( m_pageSize > 1 )
+    {
+        range1 += (m_pageSize - 1);
+    }
+
+    SCROLLINFO info;
+    info.cbSize = sizeof(SCROLLINFO);
+    info.nPage = m_pageSize;
+    info.nMin = 0;
+    info.nMax = range1;
+    info.nPos = position;
+
+    info.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;
+
+    ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, refresh);
 }
 
 void wxScrollBar::Command(wxCommandEvent& event)
@@ -325,7 +311,9 @@ wxSize wxScrollBar::DoGetBestSize() const
         h = wxSystemSettings::GetMetric(wxSYS_HSCROLL_Y);
     }
 
-    return wxSize(w, h);
+    wxSize best(w, h);
+    CacheBestSize(best);
+    return best;
 }
 
 WXDWORD wxScrollBar::MSWGetStyle(long style, WXDWORD *exstyle) const
@@ -342,4 +330,13 @@ WXDWORD wxScrollBar::MSWGetStyle(long style, WXDWORD *exstyle) const
     return msStyle;
 }
 
+WXHBRUSH wxScrollBar::MSWControlColor(WXHDC pDC, WXHWND hWnd)
+{
+    // unless we have an explicitly set bg colour, use default (gradient under
+    // XP) brush instead of GetBackgroundColour() one as the base class would
+    //
+    // note that fg colour isn't used for a scrollbar
+    return UseBgCol() ? wxControl::MSWControlColor(pDC, hWnd) : NULL;
+}
+
 #endif // wxUSE_SCROLLBAR