Don't use wxCHECK_W32API_VERSION() in #if when it can be undefined.

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

diff --git a/src/msw/scrolbar.cpp b/src/msw/scrolbar.cpp
index d10d08daadf440644324d43779302ebbe0c7ca2a..33b0a0c58188276593a3ff5b4a2a51303289ad52 100644 (file)
--- a/src/msw/scrolbar.cpp
+++ b/src/msw/scrolbar.cpp
@@ -1,18 +1,14 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        msw/scrolbar.cpp
+// Name:        src/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"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -22,22 +18,15 @@
 
 #if wxUSE_SCROLLBAR
 
 
 #if wxUSE_SCROLLBAR
 

+#include "wx/scrolbar.h"
+

 #ifndef WX_PRECOMP
     #include "wx/utils.h"
 #ifndef WX_PRECOMP
     #include "wx/utils.h"

+    #include "wx/settings.h"

 #endif
 
 #endif
 

-#include "wx/scrolbar.h"

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

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

 // Scrollbar
 bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
            const wxPoint& pos,
 // Scrollbar
 bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
            const wxPoint& pos,


@@ -45,74 +34,15 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
            const wxValidator& validator,
            const wxString& name)
 {
            const wxValidator& validator,
            const wxString& name)
 {

-    if (!parent)
-        return FALSE;
-    parent->AddChild(this);
-    SetName(name);
-#if wxUSE_VALIDATORS
-    SetValidator(validator);
-#endif // wxUSE_VALIDATORS
-
-    SetBackgroundColour(parent->GetBackgroundColour()) ;
-    SetForegroundColour(parent->GetForegroundColour()) ;
-    m_windowStyle = style;
-
-  if ( id == -1 )
-      m_windowId = (int)NewControlId();
-  else
-    m_windowId = id;
-
-  int x = pos.x;
-  int y = pos.y;
-  int width = size.x;
-  int height = size.y;
-
-    if (width == -1)
-    {
-      if (style & wxHORIZONTAL)
-        width = 140;
-      else
-        width = 14;
-    }
-    if (height == -1)
-    {
-      if (style & wxVERTICAL)
-        height = 140;
-      else
-        height = 14;
-    }
-
-    DWORD wstyle = WS_VISIBLE | WS_CHILD;
-
-    if ( m_windowStyle & wxCLIP_SIBLINGS )
-      wstyle |= WS_CLIPSIBLINGS;
-
-    // Now create scrollbar
-    DWORD _direction = (style & wxHORIZONTAL) ?
-                        SBS_HORZ: SBS_VERT;
-    HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(style), wxT("SCROLLBAR"), wxT("scrollbar"),
-                         _direction | wstyle,
-                         0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
-                         wxGetInstance(), NULL);
-
-    m_pageSize = 1;
-    m_viewSize = 1;
-    m_objectSize = 1;
-
-    ::SetScrollRange(scroll_bar, SB_CTL, 0, 1, FALSE);
-    ::SetScrollPos(scroll_bar, SB_CTL, 0, FALSE);
-    ShowWindow(scroll_bar, SW_SHOW);
+    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+        return false;

 
 

-    SetFont(parent->GetFont());
+    if (!MSWCreateControl(wxT("ScrollBar"), wxEmptyString, pos, size))
+        return false;

 
 

-    m_hWnd = (WXHWND)scroll_bar;
+    SetScrollbar(0, 1, 2, 1, false);

 
 

-    // Subclass again for purposes of dialog editing mode
-    SubclassWin((WXHWND) scroll_bar);
-
-    SetSize(x, y, width, height);
-
-    return TRUE;
+    return true;

 }
 
 wxScrollBar::~wxScrollBar(void)
 }
 
 wxScrollBar::~wxScrollBar(void)


@@ -120,109 +50,75 @@ wxScrollBar::~wxScrollBar(void)
 }
 
 bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
 }
 
 bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,

-                              WXWORD pos, WXHWND control)
+                              WXWORD WXUNUSED(pos), WXHWND WXUNUSED(control))

 {
 {

-    // current and max positions
-    int position,
-        maxPos, trackPos = pos;
-
-#ifdef __WIN32__
-    // when we're dragging the scrollbar we can't use pos parameter because it
-    // is limited to 16 bits
-    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;
-    }
-    else
-#endif // Win32
+    // don't use pos parameter because it is limited to 16 bits, get the full
+    // 32 bit position from the control itself instead
+    WinStruct<SCROLLINFO> scrollInfo;
+    scrollInfo.fMask = SIF_RANGE | SIF_POS | SIF_TRACKPOS;
+
+    if ( !::GetScrollInfo(GetHwnd(), SB_CTL, &scrollInfo) )

     {
     {

-        position = ::GetScrollPos((HWND) control, SB_CTL);
-        int minPos;
-        ::GetScrollRange((HWND) control, SB_CTL, &minPos, &maxPos);
+        wxLogLastError(wxT("GetScrollInfo"));
+        return false;

     }
 
     }
 

-#if defined(__WIN95__)
+    int maxPos = scrollInfo.nMax;
+

     // 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);
     // 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__

 
 

+    int position = scrollInfo.nPos;

     wxEventType scrollEvent = wxEVT_NULL;
     wxEventType scrollEvent = wxEVT_NULL;

-
-    int nScrollInc;

     switch ( wParam )
     {
     switch ( wParam )
     {

-        case SB_BOTTOM:
-            nScrollInc = maxPos - position;
+        case SB_TOP:
+            position = 0;

             scrollEvent = wxEVT_SCROLL_TOP;
             break;
 
             scrollEvent = wxEVT_SCROLL_TOP;
             break;
 

-        case SB_TOP:
-            nScrollInc = -position;
+        case SB_BOTTOM:
+            position = maxPos;

             scrollEvent = wxEVT_SCROLL_BOTTOM;
             break;
 
         case SB_LINEUP:
             scrollEvent = wxEVT_SCROLL_BOTTOM;
             break;
 
         case SB_LINEUP:

-            nScrollInc = -1;
+            position--;

             scrollEvent = wxEVT_SCROLL_LINEUP;
             break;
 
         case SB_LINEDOWN:
             scrollEvent = wxEVT_SCROLL_LINEUP;
             break;
 
         case SB_LINEDOWN:

-            nScrollInc = 1;
+            position++;

             scrollEvent = wxEVT_SCROLL_LINEDOWN;
             break;
 
         case SB_PAGEUP:
             scrollEvent = wxEVT_SCROLL_LINEDOWN;
             break;
 
         case SB_PAGEUP:

-            nScrollInc = -GetPageSize();
+            position -= GetPageSize();

             scrollEvent = wxEVT_SCROLL_PAGEUP;
             break;
 
         case SB_PAGEDOWN:
             scrollEvent = wxEVT_SCROLL_PAGEUP;
             break;
 
         case SB_PAGEDOWN:

-            nScrollInc = GetPageSize();
+            position += GetPageSize();

             scrollEvent = wxEVT_SCROLL_PAGEDOWN;
             break;
 
         case SB_THUMBPOSITION:
             scrollEvent = wxEVT_SCROLL_PAGEDOWN;
             break;
 
         case SB_THUMBPOSITION:

-            nScrollInc = trackPos - position;
-            scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
-            break;
-

         case SB_THUMBTRACK:
         case SB_THUMBTRACK:

-            nScrollInc = trackPos - position;
-            scrollEvent = wxEVT_SCROLL_THUMBTRACK;
+            position = scrollInfo.nTrackPos;
+            scrollEvent = wParam == SB_THUMBPOSITION ? wxEVT_SCROLL_THUMBRELEASE
+                                                     : wxEVT_SCROLL_THUMBTRACK;

             break;
 
         case SB_ENDSCROLL:
             break;
 
         case SB_ENDSCROLL:

-            nScrollInc = 0;
-            scrollEvent = wxEVT_SCROLL_ENDSCROLL;
+            scrollEvent = wxEVT_SCROLL_CHANGED;

             break;
             break;

-
-        default:
-            nScrollInc = 0;

     }
 
     }
 

-    if ( nScrollInc )
+    if ( position != scrollInfo.nPos )

     {
     {

-        position += nScrollInc;
-

         if ( position < 0 )
             position = 0;
         if ( position > maxPos )
         if ( position < 0 )
             position = 0;
         if ( position > maxPos )


@@ -231,23 +127,23 @@ bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
         SetThumbPosition(position);
     }
     else if ( scrollEvent != wxEVT_SCROLL_THUMBRELEASE &&
         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.
     {
         // don't process the event if there is no displacement,
         // unless this is a thumb release or end scroll event.

-        return FALSE;
+        return false;

     }
 
     wxScrollEvent event(scrollEvent, m_windowId);
     }
 
     wxScrollEvent event(scrollEvent, m_windowId);

+    event.SetOrientation(IsVertical() ? wxVERTICAL : wxHORIZONTAL);

     event.SetPosition(position);
     event.SetEventObject( this );
 
     event.SetPosition(position);
     event.SetEventObject( this );
 

-    return GetEventHandler()->ProcessEvent(event);
+    return HandleWindowEvent(event);

 }
 
 void wxScrollBar::SetThumbPosition(int viewStart)
 {
 }
 
 void wxScrollBar::SetThumbPosition(int viewStart)
 {

-#if defined(__WIN95__)

     SCROLLINFO info;
     info.cbSize = sizeof(SCROLLINFO);
     info.nPage = 0;
     SCROLLINFO info;
     info.cbSize = sizeof(SCROLLINFO);
     info.nPage = 0;


@@ -256,147 +152,96 @@ void wxScrollBar::SetThumbPosition(int viewStart)
     info.fMask = SIF_POS ;
 
     ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, TRUE);
     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
 {
 }
 
 int wxScrollBar::GetThumbPosition(void) const
 {

-    return ::GetScrollPos((HWND)m_hWnd, SB_CTL);
+    WinStruct<SCROLLINFO> scrollInfo;
+    scrollInfo.fMask = SIF_POS;
+
+    if ( !::GetScrollInfo(GetHwnd(), SB_CTL, &scrollInfo) )
+    {
+        wxLogLastError(wxT("GetScrollInfo"));
+    }
+    return scrollInfo.nPos;

 }
 
 void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
     bool refresh)
 {
 }
 
 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, TRUE);
-  ::SetScrollRange((HWND)m_hWnd, SB_CTL, 0, range1, TRUE);
-#endif
-}
-
+    m_viewSize = pageSize;
+    m_pageSize = thumbSize;
+    m_objectSize = range;

 
 

-/* 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:
+    // The range (number of scroll steps) is the
+    // object length minus the page size.
+    int range1 = wxMax((m_objectSize - m_pageSize), 0) ;

 
 

-MaxScrollPos = MaxRangeValue - (PageSize - 1)
-*/
+    // Try to adjust the range to cope with page size > 1
+    // (see comment for SetPageLength)
+    if ( m_pageSize > 1 )
+    {
+        range1 += (m_pageSize - 1);
+    }

 
 

-#if WXWIN_COMPATIBILITY
-void wxScrollBar::SetPageSize(int pageLength)
-{
-  m_pageSize = pageLength;
+    SCROLLINFO info;
+    info.cbSize = sizeof(SCROLLINFO);
+    info.nPage = m_pageSize;
+    info.nMin = 0;
+    info.nMax = range1;
+    info.nPos = position;

 
 

-#if defined(__WIN95__)
-  SCROLLINFO info;
-  info.cbSize = sizeof(SCROLLINFO);
-  info.nPage = pageLength;
-  info.fMask = SIF_PAGE ;
+    info.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;

 
 

-  ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, TRUE);
-#endif
+    ::SetScrollInfo((HWND) GetHWND(), SB_CTL, &info, refresh);

 }
 
 }
 

-void wxScrollBar::SetObjectLength(int objectLength)
+void wxScrollBar::Command(wxCommandEvent& event)

 {
 {

-  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
+    SetThumbPosition(event.GetInt());
+    ProcessCommand(event);

 }
 
 }
 

-void wxScrollBar::SetViewLength(int viewLength)
+wxSize wxScrollBar::DoGetBestSize() const

 {
 {

-    m_viewSize = viewLength;
-}
+    int w = 100;
+    int h = 100;

 
 

-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
+    if ( IsVertical() )
+    {
+        w = wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
+    }
+    else
+    {
+        h = wxSystemSettings::GetMetric(wxSYS_HSCROLL_Y);
+    }

 
 

-WXHBRUSH wxScrollBar::OnCtlColor(WXHDC WXUNUSED(pDC), WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
-            WXUINT WXUNUSED(message), WXWPARAM WXUNUSED(wParam), WXLPARAM WXUNUSED(lParam))
-{
-  return 0;
+    wxSize best(w, h);
+    CacheBestSize(best);
+    return best;

 }
 
 }
 

-void wxScrollBar::Command(wxCommandEvent& event)
+WXDWORD wxScrollBar::MSWGetStyle(long style, WXDWORD *exstyle) const

 {
 {

-    SetThumbPosition(event.m_commandInt);
-    ProcessCommand(event);
+    // we never have an external border
+    WXDWORD msStyle = wxControl::MSWGetStyle
+                      (
+                        (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
+                      );
+
+    // SBS_HORZ is 0 anyhow, but do mention it explicitly for clarity
+    msStyle |= style & wxSB_HORIZONTAL ? SBS_HORZ : SBS_VERT;
+
+    return msStyle;

 }
 
 }
 

-#if WXWIN_COMPATIBILITY
-// Backward compatibility
-void wxScrollBar::OnScroll(wxScrollEvent& event)
+WXHBRUSH wxScrollBar::MSWControlColor(WXHDC pDC, WXHWND hWnd)

 {
 {

-    wxEventType oldEvent = event.GetEventType();
-    event.SetEventType( wxEVT_COMMAND_SCROLLBAR_UPDATED );
-    if ( !GetEventHandler()->ProcessEvent(event) )
-    {
-        event.SetEventType( oldEvent );
-        if (!GetParent()->GetEventHandler()->ProcessEvent(event))
-            event.Skip();
-    }
+    // 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

 
 #endif // wxUSE_SCROLLBAR
 
 #endif // wxUSE_SCROLLBAR