///////////////////////////////////////////////////////////////////////////////
-// Name: univ/slider.cpp
+// Name: src/univ/slider.cpp
// Purpose: implementation of the universal version of wxSlider
// Author: Vadim Zeitlin
// Modified by:
// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "univslider.h"
-#endif
-
#include "wx/wxprec.h"
#ifdef __BORLANDC__
bool wxSlider::ChangeValueTo(int value)
{
// check if the value is going to change at all
- if (value == m_value) return false;
+ if (value == m_value)
+ return false;
// this method is protected and we should only call it with normalized
// value!
Refresh();
- // generate the event
+ // generate the events: both a specific scroll event and a command event
+ wxScrollEvent eventScroll(wxEVT_SCROLL_CHANGED, GetId());
+ eventScroll.SetPosition(m_value);
+ eventScroll.SetEventObject( this );
+ (void)GetEventHandler()->ProcessEvent(eventScroll);
+
wxCommandEvent event(wxEVT_COMMAND_SLIDER_UPDATED, GetId());
event.SetInt(m_value);
event.SetEventObject(this);
-
(void)GetEventHandler()->ProcessEvent(event);
return true;
long numArg,
const wxString& strArg)
{
+ wxEventType scrollEvent = wxEVT_NULL;
+ int value;
+ bool valueChanged = true;
+
if ( action == wxACTION_SLIDER_START )
{
- ChangeValueTo(m_min);
+ scrollEvent = wxEVT_SCROLL_TOP;
+ value = m_min;
}
else if ( action == wxACTION_SLIDER_END )
{
- ChangeValueTo(m_max);
+ scrollEvent = wxEVT_SCROLL_BOTTOM;
+ value = m_max;
}
else if ( action == wxACTION_SLIDER_PAGE_CHANGE )
{
- ChangeValueBy(numArg * GetPageSize());
+ value = NormalizeValue(m_value + numArg * GetPageSize());
}
else if ( action == wxACTION_SLIDER_LINE_UP )
{
- ChangeValueBy(+GetLineSize());
+ scrollEvent = wxEVT_SCROLL_LINEUP;
+ value = NormalizeValue(m_value + +GetLineSize());
}
else if ( action == wxACTION_SLIDER_LINE_DOWN )
{
- ChangeValueBy(-GetLineSize());
+ scrollEvent = wxEVT_SCROLL_LINEDOWN;
+ value = NormalizeValue(m_value + -GetLineSize());
}
else if ( action == wxACTION_SLIDER_PAGE_UP )
{
- ChangeValueBy(+GetPageSize());
+ scrollEvent = wxEVT_SCROLL_PAGEUP;
+ value = NormalizeValue(m_value + +GetPageSize());
}
else if ( action == wxACTION_SLIDER_PAGE_DOWN )
{
- ChangeValueBy(-GetPageSize());
+ scrollEvent = wxEVT_SCROLL_PAGEDOWN;
+ value = NormalizeValue(m_value + -GetPageSize());
}
- else if ( action == wxACTION_SLIDER_THUMB_DRAG )
+ else if ( action == wxACTION_SLIDER_THUMB_DRAG ||
+ action == wxACTION_SLIDER_THUMB_MOVE )
{
- // no special processing for it
- return true;
+ 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();
}
- else if ( action == wxACTION_SLIDER_THUMB_MOVE ||
- action == wxACTION_SLIDER_THUMB_RELEASE )
+ else if ( action == wxACTION_SLIDER_THUMB_RELEASE )
{
- ChangeValueTo((int)numArg);
+ scrollEvent = wxEVT_SCROLL_THUMBRELEASE;
+ value = (int)numArg;
}
else
{
return wxControl::PerformAction(action, numArg, strArg);
}
+ // update wxSlider current value and generate wxCommandEvent, except while
+ // dragging the thumb
+ if ( valueChanged )
+ ChangeValueTo(value);
+
+ // also generate more precise wxScrollEvent if applicable
+ if ( scrollEvent != wxEVT_NULL )
+ {
+ wxScrollEvent event(scrollEvent, GetId());
+ event.SetPosition(value);
+ event.SetEventObject( this );
+ GetEventHandler()->ProcessEvent(event);
+ }
+
return true;
}
action = wxACTION_SLIDER_LINE_DOWN;
break;
- case WXK_PRIOR:
case WXK_PAGEUP:
action = wxACTION_SLIDER_PAGE_UP;
break;
- case WXK_NEXT:
case WXK_PAGEDOWN:
action = wxACTION_SLIDER_PAGE_DOWN;
break;