// Update items size and positions
private void Update(Size constraint)
{
List <RibbonContextualTabGroup> visibleGroups = new List <RibbonContextualTabGroup>();
for (int i = 0; i < Items.Count; i++)
{
if (Items[i] is RibbonContextualTabGroup)
{
RibbonContextualTabGroup group = Items[i] as RibbonContextualTabGroup;
if ((group.Visibility == Visibility.Visible) && (group.Items.Count > 0))
{
visibleGroups.Add(group);
}
}
}
Size infinity = new Size(double.PositiveInfinity, double.PositiveInfinity);
if ((visibleGroups.Count == 0) || ((visibleGroups[0].Items[0].Parent as RibbonTabControl).CanScroll))
{
// Collapse itemRect
itemsRect = new Rect(0, 0, 0, 0);
// Set quick launch toolbar and header position and size
quickAccessToolbarHolder.Measure(infinity);
if (constraint.Width > quickAccessToolbarHolder.DesiredSize.Width + 50)
{
quickAccessToolbarRect = new Rect(0, 0, quickAccessToolbarHolder.DesiredSize.Width, quickAccessToolbarHolder.DesiredSize.Height);
headerHolder.Measure(infinity);
double allTextWidth = constraint.Width - quickAccessToolbarHolder.DesiredSize.Width;
if (HeaderAlignment == HorizontalAlignment.Left)
{
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width, 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else if (HeaderAlignment == HorizontalAlignment.Center)
{
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width + Math.Max(0, allTextWidth / 2 - headerHolder.DesiredSize.Width / 2), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else if (HeaderAlignment == HorizontalAlignment.Right)
{
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width + Math.Max(0, allTextWidth - headerHolder.DesiredSize.Width), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else if (HeaderAlignment == HorizontalAlignment.Stretch)
{
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width, 0, allTextWidth, constraint.Height);
}
}
else
{
quickAccessToolbarRect = new Rect(0, 0, Math.Max(0, constraint.Width - 50), quickAccessToolbarHolder.DesiredSize.Height);
headerRect = new Rect(Math.Max(0, constraint.Width - 50), 0, 50, constraint.Height);
}
}
else
{
// Set items container size and position
RibbonTabItem firstItem = visibleGroups[0].Items[0];
RibbonTabItem lastItem = visibleGroups[visibleGroups.Count - 1].Items[visibleGroups[visibleGroups.Count - 1].Items.Count - 1];
double startX = firstItem.TranslatePoint(new Point(0, 0), this).X;
double endX = lastItem.TranslatePoint(new Point(lastItem.DesiredSize.Width, 0), this).X;
itemsRect = new Rect(startX, 0, Math.Max(0, Math.Min(endX, constraint.Width) - startX), constraint.Height);
// Set quick launch toolbar position and size
quickAccessToolbarHolder.Measure(infinity);
double quickAccessToolbarWidth = quickAccessToolbarHolder.DesiredSize.Width;
if (startX < 0)
{
quickAccessToolbarRect = new Rect(0, 0, Math.Min(quickAccessToolbarWidth, 0), quickAccessToolbarHolder.DesiredSize.Height);
}
else
{
quickAccessToolbarRect = new Rect(0, 0, Math.Min(quickAccessToolbarWidth, startX), quickAccessToolbarHolder.DesiredSize.Height);
}
// Set header
headerHolder.Measure(infinity);
if (HeaderAlignment == HorizontalAlignment.Left)
{
if (startX - quickAccessToolbarWidth > 150)
{
double allTextWidth = startX - quickAccessToolbarWidth;
headerRect = new Rect(quickAccessToolbarRect.Width, 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else
{
double allTextWidth = Math.Max(0, constraint.Width - endX);
headerRect = new Rect(Math.Min(endX, constraint.Width), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
}
else if (HeaderAlignment == HorizontalAlignment.Center)
{
if (((startX - quickAccessToolbarWidth < 150) && (startX - quickAccessToolbarWidth > 0) && (startX - quickAccessToolbarWidth < constraint.Width - endX)) || (endX < constraint.Width / 2))
{
double allTextWidth = Math.Max(0, constraint.Width - endX);
headerRect = new Rect(Math.Min(Math.Max(endX, constraint.Width / 2 - headerHolder.DesiredSize.Width / 2), constraint.Width), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else
{
double allTextWidth = Math.Max(0, startX - quickAccessToolbarWidth);
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width + Math.Max(0, allTextWidth / 2 - headerHolder.DesiredSize.Width / 2), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
}
else if (HeaderAlignment == HorizontalAlignment.Right)
{
if (startX - quickAccessToolbarWidth > 150)
{
double allTextWidth = Math.Max(0, startX - quickAccessToolbarWidth);
headerRect = new Rect(quickAccessToolbarHolder.DesiredSize.Width + Math.Max(0, allTextWidth - headerHolder.DesiredSize.Width), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
else
{
double allTextWidth = Math.Max(0, constraint.Width - endX);
headerRect = new Rect(Math.Min(Math.Max(endX, constraint.Width - headerHolder.DesiredSize.Width), constraint.Width), 0, Math.Min(allTextWidth, headerHolder.DesiredSize.Width), constraint.Height);
}
}
else if (HeaderAlignment == HorizontalAlignment.Stretch)
{
if (startX - quickAccessToolbarWidth > 150)
{
double allTextWidth = startX - quickAccessToolbarWidth;
headerRect = new Rect(quickAccessToolbarRect.Width, 0, allTextWidth, constraint.Height);
}
else
{
double allTextWidth = Math.Max(0, constraint.Width - endX);
headerRect = new Rect(Math.Min(endX, constraint.Width), 0, allTextWidth, constraint.Height);
}
}
}
}
