Make slider thumb could moving when use mouse drag it, and also set the slider value according to the thumb position

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77808 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/univ/scrthumb.cpp

@@ -239,7 +239,7 @@ bool wxScrollThumb::HandleMouseMove(const wxMouseEvent& event) const
 {
     if ( HasCapture() )
     {
-        if ( (m_captureData->m_shaftPart == Shaft_Thumb) && event.Moving() )
+        if ( (m_captureData->m_shaftPart == Shaft_Thumb) && event.Dragging() )
         {
             // make the thumb follow the mouse by keeping the same offset
             // between the mouse position and the top/left of the thumb

src/univ/slider.cpp

@@ -804,11 +804,6 @@ bool wxSlider::PerformAction(const wxControlAction& action,
                 action == wxACTION_SLIDER_THUMB_MOVE )
     {
         scrollEvent = wxEVT_SCROLL_THUMBTRACK;
-
-        // we shouldn't generate a command event about this change but we still
-        // should update our value and the slider appearance
-        valueChanged = false;
-        m_value =
         value = (int)numArg;
         Refresh();
     }