protected void UpdateScrollbarDisplayMode(ref ScrollbarDisplayMode targetMode, ScrollbarDisplayMode newMode, string changeEvent)
{
if (targetMode == newMode)
{
return;
}
targetMode = newMode;
UpdateScrollbars();
InvalidateView(false);
FireEvent(changeEvent, new WindowEventArgs(this));
}
protected void UpdateScrollbar(Scrollbar scrollbar, float availableArea, float renderedArea, ScrollbarDisplayMode displayMode)
{
scrollbar.SetDocumentSize(renderedArea);
scrollbar.SetPageSize(availableArea);
scrollbar.SetStepSize(Math.Max(1.0f, renderedArea / 10.0f));
scrollbar.SetScrollPosition(scrollbar.GetScrollPosition());
if (displayMode == ScrollbarDisplayMode.Hidden)
{
scrollbar.Hide();
return;
}
if (displayMode == ScrollbarDisplayMode.Shown || renderedArea > availableArea)
{
scrollbar.Show();
return;
}
scrollbar.Hide();
}
public void SetVertScrollbarDisplayMode(ScrollbarDisplayMode mode)
{
UpdateScrollbarDisplayMode(ref d_vertScrollbarDisplayMode, mode, EventVertScrollbarDisplayModeChanged);
}
public void SetHorzScrollbarDisplayMode(ScrollbarDisplayMode mode)
{
UpdateScrollbarDisplayMode(ref d_horzScrollbarDisplayMode, mode, EventHorzScrollbarDisplayModeChanged);
}
/// <summary>
/// Turns the scrollbar visibility to one of the enum values
/// </summary>
/// <param name="displayMode">The visibility mode of the scrollbar</param>
public void SetScrollBarDisplayMode(ScrollbarDisplayMode displayMode)
{
scrollbarDisplayMode = displayMode;
SetScrollBarVisibility((_ListSize < _ScrollRectSize) ? scrollbarDisplayMode == ScrollbarDisplayMode.Always : scrollbarDisplayMode != ScrollbarDisplayMode.Never);
}
