public void ResetLayout()
{
if (this.UseNewLayoutSystem)
{
this.InvalidateMeasure();
this.InvalidateArrange();
}
else
{
IRadScrollViewport scrollViewport = this.viewport as IRadScrollViewport;
if (scrollViewport != null)
{
scrollViewport.InvalidateViewport();
}
if (this.viewport == null)
{
this.horizontalScrollBar.Visibility = ElementVisibility.Collapsed;
this.verticalScrollBar.Visibility = ElementVisibility.Collapsed;
return;
}
// Init size members (clientSize, viewportSize, extentSize)
this.clientSize = this.Parent.FieldSize;
Size preferredViewportSize = this.viewport.GetPreferredSize(this.clientSize);
this.extentSize = this.UsePhysicalScrolling ? preferredViewportSize :
((IRadScrollViewport)this.viewport).GetExtentSize();
ScrollFlags sf = GetScrollingNeeds(this.extentSize, this.clientSize);
Size scrollBarsSize = GetScrollBarsSize(sf);
this.viewportSize = Size.Subtract(this.clientSize, scrollBarsSize);
// Viewport
Point startPoint = new Point(base.RightToLeft ? scrollBarsSize.Width : 0, 0);
Rectangle viewportRect = new Rectangle(startPoint,
this.UsePhysicalScrolling ? this.extentSize : this.viewportSize);
this.viewport.SetBounds(viewportRect);
ResetScrollState(sf);
ResetScrollPos();
OnSizeHScroll(this.clientSize);
OnSizeVScroll(this.clientSize);
OnSizeBlankSpot(this.clientSize);
}
}
protected override SizeF ArrangeOverride(SizeF finalSize)
{
IRadScrollViewport scrollViewport = this.viewport as IRadScrollViewport;
if (scrollViewport != null)
{
scrollViewport.InvalidateViewport();
}
if (this.viewport == null)
{
base.ArrangeOverride(finalSize);
this.horizontalScrollBar.Visibility = ElementVisibility.Collapsed;
this.verticalScrollBar.Visibility = ElementVisibility.Collapsed;
return(finalSize);
}
// Init size members (clientSize, viewportSize, extentSize)
this.clientSize = Size.Round(finalSize);
//TODO:
//changed this.viewport.DesiziredSize to this.viewport.Size
//MUST be tested
Size preferredViewportSize = Size.Round(this.viewport.DesiredSize);
this.extentSize = this.UsePhysicalScrolling ? preferredViewportSize :
((IRadScrollViewport)this.viewport).GetExtentSize();
ScrollFlags sf = GetScrollingNeeds(this.extentSize, this.clientSize);
Size scrollBarsSize = GetScrollBarsSize(sf);
this.viewportSize = Size.Subtract(this.clientSize, scrollBarsSize);
// Sets Visibility and Enabled properties of the scrollbars and the blankspot
ResetScrollState(sf);
// !!! blankSpotSize is non-empty ONLY when both scrollbars are visible
Size blankSpotSize = Size.Empty;
if (this.BlankSpot.Visibility == ElementVisibility.Visible)
{
blankSpotSize = scrollBarsSize;
}
float viewportLeftPos = this.RightToLeft ? scrollBarsSize.Width : 0;
float horizontalScrollLeftPos = this.RightToLeft ? scrollBarsSize.Width : 0;
float verticalScrollLeftPos = this.RightToLeft ? 0 : finalSize.Width - scrollBarsSize.Width;
float blankSpotLeftPos = this.RightToLeft ? 0 : finalSize.Width - blankSpotSize.Width;
RectangleF viewportRect = new RectangleF(
viewportLeftPos, 0,
this.viewportSize.Width, this.viewportSize.Height);
RectangleF vertScrollRect = new RectangleF(
verticalScrollLeftPos, 0,
scrollBarsSize.Width, Math.Max(0, finalSize.Height - scrollBarsSize.Height));
RectangleF horizScrollRect = new RectangleF(
horizontalScrollLeftPos, finalSize.Height - scrollBarsSize.Height,
Math.Max(0, finalSize.Width - scrollBarsSize.Width), scrollBarsSize.Height);
RectangleF blankSpotRectRect = new RectangleF(
blankSpotLeftPos, finalSize.Height - blankSpotSize.Height,
blankSpotSize.Width, blankSpotSize.Height);
this.viewport.Arrange(viewportRect);
this.VerticalScrollBar.Arrange(vertScrollRect);
this.HorizontalScrollBar.Arrange(horizScrollRect);
this.BlankSpot.Arrange(blankSpotRectRect);
ResetScrollPos();
return(finalSize);
}