fixed unused param warning

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

diff --git a/src/msw/scrolbar.cpp b/src/msw/scrolbar.cpp
index 904fc74ec7a246b09d70cb6f07d0431285e94f73..c340e946f438ae5634df5bfdec28a9638c82f682 100644 (file)
--- a/src/msw/scrolbar.cpp
+++ b/src/msw/scrolbar.cpp
@@ -1,68 +1,116 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        scrolbar.cpp
+// Name:        msw/scrolbar.cpp

 // Purpose:     wxScrollBar
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Purpose:     wxScrollBar
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:    wxWindows license
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "scrolbar.h"
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+    #pragma implementation "scrolbar.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
 
 #endif
 

+#if wxUSE_SCROLLBAR
+

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

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

 #endif
 
 #include "wx/scrolbar.h"
 #include "wx/msw/private.h"
 
 #endif
 
 #include "wx/scrolbar.h"
 #include "wx/msw/private.h"
 

-// extern wxList wxScrollBarList;
-extern void wxFindMaxSize(HWND hwnd, RECT *rect);
-
-#if !USE_SHARED_LIBRARY
+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxScrollBarStyle )
+
+wxBEGIN_FLAGS( wxScrollBarStyle )
+    // new style border flags, we put them first to
+    // use them for streaming out
+    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+    wxFLAGS_MEMBER(wxBORDER_RAISED)
+    wxFLAGS_MEMBER(wxBORDER_STATIC)
+    wxFLAGS_MEMBER(wxBORDER_NONE)
+    
+    // old style border flags
+    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+    wxFLAGS_MEMBER(wxRAISED_BORDER)
+    wxFLAGS_MEMBER(wxSTATIC_BORDER)
+    wxFLAGS_MEMBER(wxBORDER)
+
+    // standard window styles
+    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
+    wxFLAGS_MEMBER(wxWANTS_CHARS)
+    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
+    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
+    wxFLAGS_MEMBER(wxVSCROLL)
+    wxFLAGS_MEMBER(wxHSCROLL)
+
+    wxFLAGS_MEMBER(wxSB_HORIZONTAL)
+    wxFLAGS_MEMBER(wxSB_VERTICAL)
+
+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 )
+
+    wxPROPERTY( ThumbPosition , int , SetThumbPosition, GetThumbPosition, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+       wxPROPERTY( Range , int , SetRange, GetRange, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+       wxPROPERTY( ThumbSize , int , SetThumbSize, GetThumbSize, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+       wxPROPERTY( PageSize , int , SetPageSize, GetPageSize, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY_FLAGS( WindowStyle , wxScrollBarStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxScrollBar)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_5( wxScrollBar , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
+#else

 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)

-
-BEGIN_EVENT_TABLE(wxScrollBar, wxControl)
-#if WXWIN_COMPATIBILITY
-  EVT_SCROLL(wxScrollBar::OnScroll)
-#endif
-END_EVENT_TABLE()
-

 #endif
 
 // Scrollbar
 bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
            const wxPoint& pos,
            const wxSize& size, long style,
 #endif
 
 // Scrollbar
 bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
            const wxPoint& pos,
            const wxSize& size, long style,

-           const wxValidator& validator,
+           const wxValidator& wxVALIDATOR_PARAM(validator),

            const wxString& name)
 {
     if (!parent)
         return FALSE;
     parent->AddChild(this);
     SetName(name);
            const wxString& name)
 {
     if (!parent)
         return FALSE;
     parent->AddChild(this);
     SetName(name);

-       SetValidator(validator);
-    
+#if wxUSE_VALIDATORS
+    SetValidator(validator);
+#endif // wxUSE_VALIDATORS
+
+    if ((style & wxBORDER_MASK) == wxBORDER_DEFAULT)
+        style |= wxNO_BORDER;
+

     SetBackgroundColour(parent->GetBackgroundColour()) ;
     SetForegroundColour(parent->GetForegroundColour()) ;
     m_windowStyle = style;
 
   if ( id == -1 )
     SetBackgroundColour(parent->GetBackgroundColour()) ;
     SetForegroundColour(parent->GetForegroundColour()) ;
     m_windowStyle = style;
 
   if ( id == -1 )

-       m_windowId = (int)NewControlId();
+      m_windowId = (int)NewControlId();

   else
   else

-       m_windowId = id;
+    m_windowId = id;

 
   int x = pos.x;
   int y = pos.y;
 
   int x = pos.x;
   int y = pos.y;


@@ -84,11 +132,14 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
         height = 14;
     }
 
         height = 14;
     }
 

+    WXDWORD exStyle = 0;
+    WXDWORD wstyle = MSWGetStyle(style, & exStyle) ;
+

     // Now create scrollbar
     DWORD _direction = (style & wxHORIZONTAL) ?
                         SBS_HORZ: SBS_VERT;
     // Now create scrollbar
     DWORD _direction = (style & wxHORIZONTAL) ?
                         SBS_HORZ: SBS_VERT;

-    HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(style), "SCROLLBAR", "scrollbar",
-                         _direction | WS_CHILD | WS_VISIBLE,
+    HWND scroll_bar = CreateWindowEx(exStyle, wxT("SCROLLBAR"), wxT("scrollbar"),
+                         _direction | wstyle,

                          0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
                          wxGetInstance(), NULL);
 
                          0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
                          wxGetInstance(), NULL);
 


@@ -100,7 +151,7 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
     ::SetScrollPos(scroll_bar, SB_CTL, 0, FALSE);
     ShowWindow(scroll_bar, SW_SHOW);
 
     ::SetScrollPos(scroll_bar, SB_CTL, 0, FALSE);
     ShowWindow(scroll_bar, SW_SHOW);
 

-    SetFont(* parent->GetFont());
+    SetFont(parent->GetFont());

 
     m_hWnd = (WXHWND)scroll_bar;
 
 
     m_hWnd = (WXHWND)scroll_bar;
 


@@ -116,105 +167,164 @@ wxScrollBar::~wxScrollBar(void)
 {
 }
 
 {
 }
 

-void wxScrollBar::MSWOnVScroll(WXWORD wParam, WXWORD pos, WXHWND control)
+bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
+                              WXWORD pos, WXHWND WXUNUSED(control))

 {
 {

-    int position = ::GetScrollPos((HWND) control, SB_CTL);
-    int minPos, maxPos;
-    ::GetScrollRange((HWND) control, SB_CTL, &minPos, &maxPos);
-#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);
+    // current and max positions
+    int position,
+        maxPos, trackPos = pos;
+
+    // when we're dragging the scrollbar we can't use pos parameter because it
+    // is limited to 16 bits
+    // JACS: now always using GetScrollInfo, since there's no reason
+    // not to
+//    if ( wParam == SB_THUMBPOSITION || wParam == SB_THUMBTRACK )
+    {
+        SCROLLINFO scrollInfo;
+        wxZeroMemory(scrollInfo);
+        scrollInfo.cbSize = sizeof(SCROLLINFO);
+
+        // also get the range if we call GetScrollInfo() anyhow -- this is less
+        // expensive than call it once here and then call GetScrollRange()
+        // below
+        scrollInfo.fMask = SIF_RANGE | SIF_POS | SIF_TRACKPOS;
+
+        if ( !::GetScrollInfo(GetHwnd(), SB_CTL, &scrollInfo) )
+        {
+            wxLogLastError(_T("GetScrollInfo"));
+        }
+
+        trackPos = scrollInfo.nTrackPos;
+        position = scrollInfo.nPos;
+        maxPos = scrollInfo.nMax;
+    }
+#if 0
+    else
+    {
+        position = ::GetScrollPos((HWND) control, SB_CTL);
+        int minPos;
+        ::GetScrollRange((HWND) control, SB_CTL, &minPos, &maxPos);
+    }

 #endif
 
 #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 )
     {
     wxEventType scrollEvent = wxEVT_NULL;
 
     int nScrollInc;
     switch ( wParam )
     {

-            case SB_TOP:
-                    nScrollInc = maxPos - position;
-                    scrollEvent = wxEVT_SCROLL_TOP;
-                    break;
-
-            case SB_BOTTOM:
-                    nScrollInc = - position;
-                    scrollEvent = wxEVT_SCROLL_BOTTOM;
-                    break;
-
-            case SB_LINEUP:
-                    nScrollInc = -1;
-                    scrollEvent = wxEVT_SCROLL_LINEUP;
-                    break;
-
-            case SB_LINEDOWN:
-                    nScrollInc = 1;
-                    scrollEvent = wxEVT_SCROLL_LINEDOWN;
-                    break;
-
-            case SB_PAGEUP:
-                    nScrollInc = -GetPageSize();
-                    scrollEvent = wxEVT_SCROLL_PAGEUP;
-                    break;
-
-            case SB_PAGEDOWN:
-                    nScrollInc = GetPageSize();
-                    scrollEvent = wxEVT_SCROLL_PAGEDOWN;
-                    break;
-
-            case SB_THUMBTRACK:
-            case SB_THUMBPOSITION:
-                    nScrollInc = pos - position;
-                    scrollEvent = wxEVT_SCROLL_THUMBTRACK;
-                    break;
-
-            default:
-                    nScrollInc = 0;
+        case SB_BOTTOM:
+            nScrollInc = maxPos - position;
+            scrollEvent = wxEVT_SCROLL_TOP;
+            break;
+
+        case SB_TOP:
+            nScrollInc = -position;
+            scrollEvent = wxEVT_SCROLL_BOTTOM;
+            break;
+
+        case SB_LINEUP:
+            nScrollInc = -1;
+            scrollEvent = wxEVT_SCROLL_LINEUP;
+            break;
+
+        case SB_LINEDOWN:
+            nScrollInc = 1;
+            scrollEvent = wxEVT_SCROLL_LINEDOWN;
+            break;
+
+        case SB_PAGEUP:
+            nScrollInc = -GetPageSize();
+            scrollEvent = wxEVT_SCROLL_PAGEUP;
+            break;
+
+        case SB_PAGEDOWN:
+            nScrollInc = GetPageSize();
+            scrollEvent = wxEVT_SCROLL_PAGEDOWN;
+            break;
+
+        case SB_THUMBPOSITION:
+            nScrollInc = trackPos - position;
+            scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
+            break;
+
+        case SB_THUMBTRACK:
+            nScrollInc = trackPos - position;
+            scrollEvent = wxEVT_SCROLL_THUMBTRACK;
+            break;
+
+        case SB_ENDSCROLL:
+            nScrollInc = 0;
+            scrollEvent = wxEVT_SCROLL_ENDSCROLL;
+            break;
+
+        default:
+            nScrollInc = 0;

     }
 
     }
 

-    if (nScrollInc != 0)
+    if ( nScrollInc )

     {
     {

-        int new_pos = position + nScrollInc;
-
-        if (new_pos < 0)
-            new_pos = 0;
-        if (new_pos > maxPos)
-            new_pos = maxPos;
-
-        SetThumbPosition(new_pos);
-        wxScrollEvent event(scrollEvent, m_windowId);
-        event.SetPosition(new_pos);
-        event.SetEventObject( this );
-        GetEventHandler()->ProcessEvent(event);
+        position += nScrollInc;
+
+        if ( position < 0 )
+            position = 0;
+        if ( position > maxPos )
+            position = maxPos;
+
+        SetThumbPosition(position);
+    }
+    else if ( scrollEvent != wxEVT_SCROLL_THUMBRELEASE &&
+                scrollEvent != wxEVT_SCROLL_ENDSCROLL )
+    {
+        // don't process the event if there is no displacement,
+        // unless this is a thumb release or end scroll event.
+        return FALSE;

     }
     }

-}

 
 

-void wxScrollBar::MSWOnHScroll(WXWORD wParam, WXWORD pos, WXHWND control)
-{
-       MSWOnVScroll(wParam, pos, control);
+    wxScrollEvent event(scrollEvent, m_windowId);
+    event.SetOrientation(IsVertical() ? wxVERTICAL : wxHORIZONTAL);
+    event.SetPosition(position);
+    event.SetEventObject( this );
+
+    return GetEventHandler()->ProcessEvent(event);

 }
 
 void wxScrollBar::SetThumbPosition(int viewStart)
 {
 #if defined(__WIN95__)
 }
 
 void wxScrollBar::SetThumbPosition(int viewStart)
 {
 #if defined(__WIN95__)

-  SCROLLINFO info;
-  info.cbSize = sizeof(SCROLLINFO);
-  info.nPage = 0;
-  info.nMin = 0;
-  info.nPos = viewStart;
-  info.fMask = SIF_POS ;
-
-  ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, TRUE);
+    SCROLLINFO info;
+    info.cbSize = sizeof(SCROLLINFO);
+    info.nPage = 0;
+    info.nMin = 0;
+    info.nPos = viewStart;
+    info.fMask = SIF_POS ;
+
+    ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, TRUE);

 #else
 #else

-  ::SetScrollPos((HWND) GetHWND(), SB_CTL, viewStart, TRUE);
+    ::SetScrollPos((HWND) GetHWND(), SB_CTL, viewStart, TRUE);

 #endif
 }
 
 int wxScrollBar::GetThumbPosition(void) const
 {
 #endif
 }
 
 int wxScrollBar::GetThumbPosition(void) const
 {

-    return ::GetScrollPos((HWND)m_hWnd, SB_CTL);
+    SCROLLINFO scrollInfo;
+    wxZeroMemory(scrollInfo);
+    scrollInfo.cbSize = sizeof(SCROLLINFO);
+    scrollInfo.fMask = SIF_POS;
+
+    if ( !::GetScrollInfo(GetHwnd(), SB_CTL, &scrollInfo) )
+    {
+        wxLogLastError(_T("GetScrollInfo"));
+    }
+    return scrollInfo.nPos;
+//    return ::GetScrollPos((HWND)m_hWnd, SB_CTL);

 }
 
 void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
 }
 
 void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,


@@ -233,7 +343,7 @@ void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageS
   // (see comment for SetPageLength)
   if ( m_pageSize > 1 )
   {
   // (see comment for SetPageLength)
   if ( m_pageSize > 1 )
   {

-       range1 += (m_pageSize - 1);
+    range1 += (m_pageSize - 1);

   }
 
   SCROLLINFO info;
   }
 
   SCROLLINFO info;


@@ -253,78 +363,8 @@ void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageS
 }
 
 
 }
 
 

-/* From the WIN32 documentation:
-In version 4.0 or later, the maximum value that a scroll bar can report
-(that is, the maximum scrolling position) depends on the page size.
-If the scroll bar has a page size greater than one, the maximum scrolling position
-is less than the maximum range value. You can use the following formula to calculate
-the maximum scrolling position:
-  
-MaxScrollPos = MaxRangeValue - (PageSize - 1) 
-*/
-
-#if WXWIN_COMPATIBILITY
-void wxScrollBar::SetPageSize(int pageLength)
-{
-  m_pageSize = pageLength;
-
-#if defined(__WIN95__)
-  SCROLLINFO info;
-  info.cbSize = sizeof(SCROLLINFO);
-  info.nPage = pageLength;
-  info.fMask = SIF_PAGE ;
-
-  ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, TRUE);
-#endif
-}
-
-void wxScrollBar::SetObjectLength(int objectLength)
-{
-  m_objectSize = objectLength;
-
-  // The range (number of scroll steps) is the
-  // object length minus the view size.
-  int range = wxMax((objectLength - m_viewSize), 0) ;
-
-#if defined(__WIN95__)
-  // Try to adjust the range to cope with page size > 1
-  // (see comment for SetPageLength)
-  if ( m_pageSize > 1 )
-  {
-       range += (m_pageSize - 1);
-  }
-
-  SCROLLINFO info;
-  info.cbSize = sizeof(SCROLLINFO);
-  info.nPage = 0;
-  info.nMin = 0;
-  info.nMax = range;
-  info.nPos = 0;
-  info.fMask = SIF_RANGE ;
-
-  ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, TRUE);
-#else
-  ::SetScrollRange((HWND)m_hWnd, SB_CTL, 0, range, TRUE);
-#endif
-}
-
-void wxScrollBar::SetViewLength(int viewLength)
-{
-    m_viewSize = viewLength;
-}
-
-void wxScrollBar::GetValues(int *viewStart, int *viewLength, int *objectLength,
-           int *pageLength) const
-{
-    *viewStart = ::GetScrollPos((HWND)m_hWnd, SB_CTL);
-    *viewLength = m_viewSize;
-    *objectLength = m_objectSize;
-    *pageLength = m_pageSize;
-}
-#endif
-
-WXHBRUSH wxScrollBar::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
-                       WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
+WXHBRUSH wxScrollBar::OnCtlColor(WXHDC WXUNUSED(pDC), WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
+            WXUINT WXUNUSED(message), WXWPARAM WXUNUSED(wParam), WXLPARAM WXUNUSED(lParam))

 {
   return 0;
 }
 {
   return 0;
 }


@@ -335,17 +375,4 @@ void wxScrollBar::Command(wxCommandEvent& event)
     ProcessCommand(event);
 }
 
     ProcessCommand(event);
 }
 

-#if WXWIN_COMPATIBILITY
-// Backward compatibility
-void wxScrollBar::OnScroll(wxScrollEvent& event)
-{
-    wxEventType oldEvent = event.GetEventType();
-    event.SetEventType( wxEVT_COMMAND_SCROLLBAR_UPDATED );
-    if ( !GetEventHandler()->ProcessEvent(event) )
-    {
-        event.SetEventType( oldEvent );
-        if (!GetParent()->GetEventHandler()->ProcessEvent(event))
-            event.Skip();
-    }
-}
-#endif
+#endif // wxUSE_SCROLLBAR