Added scrolling of widgets to GTK 2.0.

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

diff --git a/src/msw/scrolbar.cpp b/src/msw/scrolbar.cpp
index 007c98067ffb9024d0ac6a5c106aea8755499e0d..7c32db671ed6f320ae12326566ce1a907b362ff0 100644 (file)
--- a/src/msw/scrolbar.cpp
+++ b/src/msw/scrolbar.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

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

 // Purpose:     wxScrollBar
 // Author:      Julian Smart
 // Modified by:
 // Purpose:     wxScrollBar
 // Author:      Julian Smart
 // Modified by:


@@ -10,19 +10,20 @@
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__

-#pragma implementation "scrolbar.h"
+    #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"
 #endif
 
 #include "wx/scrolbar.h"


@@ -51,7 +52,7 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
 #if wxUSE_VALIDATORS
     SetValidator(validator);
 #endif // wxUSE_VALIDATORS
 #if wxUSE_VALIDATORS
     SetValidator(validator);
 #endif // wxUSE_VALIDATORS

-    
+

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


@@ -81,11 +82,16 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
         height = 14;
     }
 
         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"),
     // Now create scrollbar
     DWORD _direction = (style & wxHORIZONTAL) ?
                         SBS_HORZ: SBS_VERT;
     HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(style), wxT("SCROLLBAR"), wxT("scrollbar"),

-                         _direction | WS_CHILD | WS_VISIBLE,
+                         _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);
 


@@ -133,13 +139,13 @@ bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
     int nScrollInc;
     switch ( wParam )
     {
     int nScrollInc;
     switch ( wParam )
     {

-        case SB_TOP:
+        case SB_BOTTOM:

             nScrollInc = maxPos - position;
             scrollEvent = wxEVT_SCROLL_TOP;
             break;
 
             nScrollInc = maxPos - position;
             scrollEvent = wxEVT_SCROLL_TOP;
             break;
 

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

             scrollEvent = wxEVT_SCROLL_BOTTOM;
             break;
 
             scrollEvent = wxEVT_SCROLL_BOTTOM;
             break;
 


@@ -173,27 +179,36 @@ bool wxScrollBar::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
             scrollEvent = wxEVT_SCROLL_THUMBTRACK;
             break;
 
             scrollEvent = wxEVT_SCROLL_THUMBTRACK;
             break;
 

+        case SB_ENDSCROLL:
+            nScrollInc = 0;
+            scrollEvent = wxEVT_SCROLL_ENDSCROLL;
+            break;
+

         default:
             nScrollInc = 0;
     }
 
         default:
             nScrollInc = 0;
     }
 

-    // don't process the event if there is no displacement,
-    // unless this is a thumb release event.
-    if (( nScrollInc == 0 ) && ( scrollEvent != wxEVT_SCROLL_THUMBRELEASE ))
+    if ( nScrollInc )

     {
     {

-        return FALSE;
-    }
+        position += nScrollInc;

 
 

-    int new_pos = position + nScrollInc;
+        if ( position < 0 )
+            position = 0;
+        if ( position > maxPos )
+            position = maxPos;

 
 

-    if (new_pos < 0)
-        new_pos = 0;
-    if (new_pos > maxPos)
-        new_pos = 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;
+    }

 
 

-    SetThumbPosition(new_pos);

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

-    event.SetPosition(new_pos);
+    event.SetPosition(position);

     event.SetEventObject( this );
 
     return GetEventHandler()->ProcessEvent(event);
     event.SetEventObject( this );
 
     return GetEventHandler()->ProcessEvent(event);


@@ -262,8 +277,8 @@ In version 4.0 or later, the maximum value that a scroll bar can report
 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:
 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) 
+
+MaxScrollPos = MaxRangeValue - (PageSize - 1)

 */
 
 #if WXWIN_COMPATIBILITY
 */
 
 #if WXWIN_COMPATIBILITY


@@ -326,8 +341,8 @@ void wxScrollBar::GetValues(int *viewStart, int *viewLength, int *objectLength,
 }
 #endif
 
 }
 #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;
 }


@@ -352,3 +367,5 @@ void wxScrollBar::OnScroll(wxScrollEvent& event)
     }
 }
 #endif
     }
 }
 #endif

+
+#endif // wxUSE_SCROLLBAR