/////////////////////////////////////////////////////////////////////////////
-// Name: scrolbar.cpp
+// Name: src/os2/scrolbar.cpp
// Purpose: wxScrollBar
// Author: David Webster
// Modified by:
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
+#include "wx/scrolbar.h"
+
#ifndef WX_PRECOMP
-#include "wx/defs.h"
-#include "wx/utils.h"
+ #include "wx/utils.h"
#endif
-#include "wx/scrolbar.h"
#include "wx/os2/private.h"
IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
-BEGIN_EVENT_TABLE(wxScrollBar, wxControl)
-#if WXWIN_COMPATIBILITY
- EVT_SCROLL(wxScrollBar::OnScroll)
+// Scrollbar
+bool wxScrollBar::Create(wxWindow* pParent,
+ wxWindowID vId,
+ const wxPoint& rPos,
+ const wxSize& rSize,
+ long lStyle,
+#if wxUSE_VALIDATORS
+ const wxValidator& rValidator,
#endif
-END_EVENT_TABLE()
+ const wxString& rsName
+ )
+{
+ int nX = rPos.x;
+ int nY = rPos.y;
+ int nWidth = rSize.x;
+ int nHeight = rSize.y;
+ if (!pParent)
+ return false;
-// Scrollbar
-bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
- const wxPoint& pos,
- const wxSize& size, long style,
- const wxValidator& validator,
- const wxString& name)
-{
- if (!parent)
- return FALSE;
- parent->AddChild(this);
- SetName(name);
+ pParent->AddChild(this);
+ SetName(rsName);
#if wxUSE_VALIDATORS
- SetValidator(validator);
+ SetValidator(rValidator);
#endif
+ SetBackgroundColour(pParent->GetBackgroundColour()) ;
+ SetForegroundColour(pParent->GetForegroundColour()) ;
- SetBackgroundColour(parent->GetBackgroundColour()) ;
- SetForegroundColour(parent->GetForegroundColour()) ;
- m_windowStyle = style;
-
- if ( id == -1 )
+ if (vId == wxID_ANY)
m_windowId = (int)NewControlId();
else
- m_windowId = id;
+ m_windowId = vId;
- int x = pos.x;
- int y = pos.y;
- int width = size.x;
- int height = size.y;
-
- if (width == -1)
+ if (nWidth == wxDefaultCoord)
{
- if (style & wxHORIZONTAL)
- width = 140;
+ if (lStyle & wxHORIZONTAL)
+ nWidth = 140;
else
- width = 14;
+ nWidth = 14;
}
- if (height == -1)
+ if (nHeight == wxDefaultCoord)
{
- if (style & wxVERTICAL)
- height = 140;
+ if (lStyle & wxVERTICAL)
+ nHeight = 140;
else
- height = 14;
+ nHeight = 14;
}
- // TODO create scrollbar
-
- m_pageSize = 1;
- m_viewSize = 1;
- m_objectSize = 1;
-
- SetFont(parent->GetFont());
-
- m_hWnd = 0; // TODO: (WXHWND)scroll_bar;
-
- HWND scroll_bar = 0; // temporary
-
+ DWORD dwStyle = WS_VISIBLE;
+
+ if (GetWindowStyleFlag() & wxCLIP_SIBLINGS)
+ dwStyle |= WS_CLIPSIBLINGS;
+
+ DWORD dwDirection = (lStyle & wxHORIZONTAL) ? SBS_HORZ: SBS_VERT;
+
+ HWND hScrollBar = ::WinCreateWindow( (HWND)GetHwndOf(pParent)
+ ,WC_SCROLLBAR
+ ,(PSZ)NULL
+ ,dwDirection | dwStyle
+ ,0, 0, 0, 0
+ ,(HWND)GetHwndOf(pParent)
+ ,HWND_TOP
+ ,(HMENU)m_windowId
+ ,NULL
+ ,NULL
+ );
+
+ m_nPageSize = 1;
+ m_nViewSize = 1;
+ m_nObjectSize = 1;
+ ::WinSendMsg( hScrollBar
+ ,SBM_SETSCROLLBAR
+ ,(MPARAM)0
+ ,MPFROM2SHORT(0,1)
+ );
+ ::WinShowWindow( hScrollBar, TRUE );
+ SetFont(*wxSMALL_FONT);
+
+ m_hWnd = hScrollBar;
+
+ //
// Subclass again for purposes of dialog editing mode
- SubclassWin((WXHWND) scroll_bar);
-
- SetSize(x, y, width, height);
-
- return TRUE;
-}
+ //
+ SubclassWin((WXHWND)hScrollBar);
+ SetSize( nX
+ ,nY
+ ,nWidth
+ ,nHeight
+ );
+ return true;
+} // end of wxScrollBar::Create
wxScrollBar::~wxScrollBar()
{
}
-bool wxScrollBar::OS2OnScroll(int WXUNUSED(orientation), WXWORD wParam,
- WXWORD pos, WXHWND control)
+bool wxScrollBar::OS2OnScroll ( int WXUNUSED(nOrientation),
+ WXWORD wParam,
+ WXWORD wPos,
+ WXHWND WXUNUSED(hControl) )
{
- // TODO:
-/*
- int position = ::GetScrollPos((HWND) control, SB_CTL);
- int minPos, maxPos;
- ::GetScrollRange((HWND) control, SB_CTL, &minPos, &maxPos);
+ int nPosition;
+ int nMaxPos;
+ int nTrackPos = wPos;
+ int nMinPos;
+ int nScrollInc;
+ wxEventType vScrollEvent = wxEVT_NULL;
+
+ MRESULT vRange;
+
+ //
+ // When we're dragging the scrollbar we can't use pos parameter because it
+ // is limited to 16 bits
+ //
+ if (wParam == SB_SLIDERPOSITION || wParam == SB_SLIDERTRACK)
+ {
+ SBCDATA vScrollInfo;
+
+ vScrollInfo.sHilite = SB_SLIDERTRACK;
+
+ ::WinSendMsg((HWND)GetHwnd(), WM_QUERYWINDOWPARAMS, (PVOID)&vScrollInfo, NULL);
-#if defined(__WIN95__)
+ nTrackPos = vScrollInfo.posThumb;
+ nPosition = vScrollInfo.posFirst;
+ nMaxPos = vScrollInfo.posLast;
+ }
+ else
+ {
+ nPosition = (int)(MRESULT)::WinSendMsg((HWND)GetHwnd(), SBM_QUERYPOS, (MPARAM)NULL, (MPARAM)NULL);
+ vRange = ::WinSendMsg((HWND)GetHwnd(), SBM_QUERYRANGE, (MPARAM)NULL, (MPARAM)NULL);
+ nMinPos = SHORT1FROMMR(vRange);
+ nMaxPos = SHORT2FROMMR(vRange);
+ }
+ //
// 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 )
+ //
+ if (m_nPageSize > 1)
+ nMaxPos -= (m_nPageSize - 1);
+ 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;
+ nScrollInc = -1;
+ vScrollEvent = wxEVT_SCROLL_LINEUP;
break;
case SB_LINEDOWN:
- nScrollInc = 1;
- scrollEvent = wxEVT_SCROLL_LINEDOWN;
+ nScrollInc = 1;
+ vScrollEvent = wxEVT_SCROLL_LINEDOWN;
break;
case SB_PAGEUP:
- nScrollInc = -GetPageSize();
- scrollEvent = wxEVT_SCROLL_PAGEUP;
+ nScrollInc = -GetPageSize();
+ vScrollEvent = wxEVT_SCROLL_PAGEUP;
break;
case SB_PAGEDOWN:
- nScrollInc = GetPageSize();
- scrollEvent = wxEVT_SCROLL_PAGEDOWN;
+ nScrollInc = GetPageSize();
+ vScrollEvent = wxEVT_SCROLL_PAGEDOWN;
break;
- case SB_THUMBTRACK:
- case SB_THUMBPOSITION:
- nScrollInc = pos - position;
- scrollEvent = wxEVT_SCROLL_THUMBTRACK;
+ case SB_SLIDERTRACK:
+ nScrollInc = nTrackPos - nPosition;
+ vScrollEvent = wxEVT_SCROLL_THUMBTRACK;
+ break;
+
+ case SB_ENDSCROLL:
+ nScrollInc = 0;
+ vScrollEvent = wxEVT_SCROLL_CHANGED;
break;
default:
nScrollInc = 0;
}
+ if (nScrollInc)
+ {
+ nPosition += nScrollInc;
- if ( nScrollInc == 0 )
+ if (nPosition < 0)
+ nPosition = 0;
+ if (nPosition > nMaxPos)
+ nPosition = nMaxPos;
+ SetThumbPosition(nPosition);
+ }
+ else if ( vScrollEvent != wxEVT_SCROLL_THUMBRELEASE &&
+ vScrollEvent != wxEVT_SCROLL_CHANGED
+ )
{
- // no event to process, so don't process it
- return FALSE;
+ //
+ // Don't process the event if there is no displacement,
+ // unless this is a thumb release or end scroll event.
+ //
+ return false;
}
- int new_pos = position + nScrollInc;
-
- if (new_pos < 0)
- new_pos = 0;
- if (new_pos > maxPos)
- new_pos = maxPos;
+ wxScrollEvent vEvent( vScrollEvent
+ ,m_windowId
+ );
- SetThumbPosition(new_pos);
- wxScrollEvent event(scrollEvent, m_windowId);
- event.SetPosition(new_pos);
- event.SetEventObject( this );
+ vEvent.SetOrientation(IsVertical() ? wxVERTICAL : wxHORIZONTAL);
+ vEvent.SetPosition(nPosition);
+ vEvent.SetEventObject(this);
+ return HandleWindowEvent(vEvent);
+} // end of wxScrollBar::OS2OnScroll
- return GetEventHandler()->ProcessEvent(event);
-*/
- return FALSE;
-}
-
-void wxScrollBar::SetThumbPosition(int viewStart)
-{
- // TODO
-}
-
-int wxScrollBar::GetThumbPosition() const
-{
- // TODO
- return 0;
-}
-
-void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
- bool refresh)
-{
- m_viewSize = pageSize;
- m_pageSize = thumbSize;
- m_objectSize = range;
-
- // TODO
-}
-
-#if WXWIN_COMPATIBILITY
-void wxScrollBar::SetPageSize(int pageLength)
-{
- m_pageSize = pageLength;
-
- // TODO:
-}
-
-void wxScrollBar::SetObjectLength(int objectLength)
+void wxScrollBar::SetThumbPosition ( int nViewStart )
{
- m_objectSize = objectLength;
+ SBCDATA vInfo;
- // The range (number of scroll steps) is the
- // object length minus the view size.
- int range = wxMax((objectLength - m_viewSize), 0) ;
+ memset(&vInfo, '\0', sizeof(SBCDATA));
+ vInfo.cb = sizeof(SBCDATA);
+ vInfo.posThumb = (SHORT)nViewStart;
- // TODO:
-}
+ ::WinSendMsg((HWND)GetHwnd(), WM_SETWINDOWPARAMS, (MPARAM)&vInfo, (MPARAM)NULL);
+ ::WinSendMsg((HWND)GetHwnd(), SBM_SETPOS, (MPARAM)nViewStart, (MPARAM)NULL);
+} // end of wxScrollBar::SetThumbPosition
-void wxScrollBar::SetViewLength(int viewLength)
+int wxScrollBar::GetThumbPosition() const
{
- m_viewSize = viewLength;
-}
-
-void wxScrollBar::GetValues(int *viewStart, int *viewLength, int *objectLength,
- int *pageLength) const
+ return((int)(MRESULT)::WinSendMsg((HWND)GetHwnd(), SBM_QUERYPOS, (MPARAM)NULL, (MPARAM)NULL));
+} // end of wxScrollBar::GetThumbPosition
+
+void wxScrollBar::SetScrollbar ( int nPosition,
+ int nThumbSize,
+ int nRange,
+ int nPageSize,
+ bool WXUNUSED(bRefresh) )
{
-// TODO:
-/*
- *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)
-{
- return 0;
-}
-
-void wxScrollBar::Command(wxCommandEvent& event)
+ SBCDATA vInfo;
+ //
+ // The lRange (number of scroll steps) is the
+ // object length minus the page size.
+ //
+ int nRange1 = wxMax((m_nObjectSize - m_nPageSize), 0);
+
+ m_nViewSize = nPageSize;
+ m_nPageSize = nThumbSize;
+ m_nObjectSize = nRange;
+
+
+ //
+ // Try to adjust the lRange to cope with page size > 1
+ // (see comment for SetPageLength)
+ //
+ if (m_nPageSize > 1 )
+ {
+ nRange1 += (m_nPageSize - 1);
+ }
+ vInfo.cb = sizeof(SBCDATA);
+ vInfo.cVisible = (SHORT)m_nPageSize;
+ vInfo.posFirst = 0;
+ vInfo.posLast = (SHORT)nRange1;
+ vInfo.posThumb = (SHORT)nPosition;
+
+ ::WinSendMsg((HWND)GetHwnd(), WM_SETWINDOWPARAMS, (MPARAM)&vInfo, (MPARAM)NULL);
+} // end of wxScrollBar::SetScrollbar
+
+WXHBRUSH wxScrollBar::OnCtlColor ( WXHDC WXUNUSED(hDC),
+ WXHWND WXUNUSED(hWnd),
+ WXUINT WXUNUSED(uCtlColor),
+ WXUINT WXUNUSED(uMessage),
+ WXWPARAM WXUNUSED(wParam),
+ WXLPARAM WXUNUSED(lParam) )
{
- SetThumbPosition(event.m_commandInt);
- ProcessCommand(event);
-}
+ //
+ // Does nothing under OS/2
+ //
+ return 0;
+} // end of wxScrollBar::OnCtlColor
-#if WXWIN_COMPATIBILITY
-// Backward compatibility
-void wxScrollBar::OnScroll(wxScrollEvent& event)
+void wxScrollBar::Command ( wxCommandEvent& rEvent )
{
- // TODO:
-/*
- 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
+ SetThumbPosition(rEvent.GetInt());
+ ProcessCommand(rEvent);
+} // end of wxScrollBar::Command
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