/*************************************************************************
Handler called whenever the mouse moves while dragging a segment
*************************************************************************/
bool ListHeader::segmentDragHandler(const EventArgs&)
{
// what we do here is monitor the position and scroll if we can when mouse is outside area.
// get mouse position as something local
const Vector2f localMousePos(CoordConverter::screenToWindow(*this,
getUnprojectedPosition(getGUIContext().
getMouseCursor().getPosition())));
// scroll left?
if (localMousePos.d_x < 0.0f)
{
if (d_segmentOffset > 0.0f)
{
setSegmentOffset(ceguimax(0.0f, d_segmentOffset - ScrollSpeed));
}
}
// scroll right?
else if (localMousePos.d_x >= d_pixelSize.d_width)
{
float maxOffset = ceguimax(0.0f, getTotalSegmentsPixelExtent() - d_pixelSize.d_width);
// if we have not scrolled to the limit
if (d_segmentOffset < maxOffset)
{
// scroll, but never beyond the limit
setSegmentOffset(ceguimin(maxOffset, d_segmentOffset + ScrollSpeed));
}
}
return true;
}
//----------------------------------------------------------------------------//
void ButtonBase::setPushedState(const bool pushed)
{
d_pushed = pushed;
if (!pushed)
updateInternalState(getUnprojectedPosition(
getGUIContext().getCursor().getPosition()));
else
d_hovering = true;
invalidate();
}
/*************************************************************************
Handler for when mouse capture is lost
*************************************************************************/
void MenuItem::onCaptureLost(WindowEventArgs& e)
{
// Default processing
ItemEntry::onCaptureLost(e);
d_pushed = false;
updateInternalState(getUnprojectedPosition(
getGUIContext().getMouseCursor().getPosition()));
invalidate();
// event was handled by us.
++e.handled;
}
/*************************************************************************
Handler method for when a segment is dragged & dropped.
*************************************************************************/
bool ListHeader::segmentMovedHandler(const EventArgs& e)
{
const Vector2f mousePos(getUnprojectedPosition(
getGUIContext().getMouseCursor().getPosition()));
// segment must be dropped within the window
if (isHit(mousePos))
{
// get mouse position as something local
Vector2f localMousePos(CoordConverter::screenToWindow(*this, mousePos));
// set up to allow for current offsets
float currwidth = -d_segmentOffset;
// calculate column where dragged segment was dropped
uint col;
for (col = 0; col < getColumnCount(); ++col)
{
currwidth += d_segments[col]->getPixelSize().d_width;
if (localMousePos.d_x < currwidth)
{
// this is the column, exit loop early
break;
}
}
// find original column for dragged segment.
ListHeaderSegment* seg = ((ListHeaderSegment*)((WindowEventArgs&)e).window);
uint curcol = getColumnFromSegment(*seg);
// move column
moveColumn(curcol, col);
}
return true;
}
