internal static Size GetDesiredSizeWithoutMargin(UIElement element)
{
// We have a hard coded margin value on each side for the
// selected item. To account for this additional size,
// we add this size to the calculations taking place.
double selectedMarginSize = 0;
TabItem tabItem = element as TabItem;
if (tabItem != null && tabItem.IsSelected)
{
Panel panel = tabItem.GetTemplate(tabItem.IsSelected, tabItem.TabStripPlacement) as Panel;
FrameworkElement fe = (panel != null && panel.Children.Count > 0) ? panel.Children[0] as FrameworkElement : null;
if (fe != null)
{
selectedMarginSize += (Math.Abs(fe.Margin.Left + fe.Margin.Right));
}
}
Thickness margin = (Thickness)element.GetValue(MarginProperty);
Size desiredSizeWithoutMargin = new Size();
desiredSizeWithoutMargin.Height = Math.Max(0d, element.DesiredSize.Height - margin.Top - margin.Bottom);
desiredSizeWithoutMargin.Width = Math.Max(0d, element.DesiredSize.Width - margin.Left - margin.Right + selectedMarginSize);
return(desiredSizeWithoutMargin);
}
public void UpdateVisualStateTest()
{
TabControl tabControl = new TabControl();
TabItem tabItem = new TabItem();
tabControl.Items.Add(tabItem);
tabItem.IsSelected = true;
tabControl.TabStripPlacement = Dock.Top;
tabItem.UpdateVisualState();
Assert.AreEqual(tabItem.ElementTemplateTopSelected, tabItem.GetTemplate(tabItem.IsSelected, tabItem.TabStripPlacement));
tabControl.TabStripPlacement = Dock.Bottom;
tabItem.UpdateVisualState();
Assert.AreEqual(tabItem.ElementTemplateBottomSelected, tabItem.GetTemplate(tabItem.IsSelected, tabItem.TabStripPlacement));
tabControl.TabStripPlacement = Dock.Left;
tabItem.UpdateVisualState();
Assert.AreEqual(tabItem.ElementTemplateLeftSelected, tabItem.GetTemplate(tabItem.IsSelected, tabItem.TabStripPlacement));
tabControl.TabStripPlacement = Dock.Right;
tabItem.UpdateVisualState();
Assert.AreEqual(tabItem.ElementTemplateRightSelected, tabItem.GetTemplate(tabItem.IsSelected, tabItem.TabStripPlacement));
}
public void GetHeadersSizeTest()
{
TabControl tabControl = new TabControl();
tabControl.Height = 100;
tabControl.Width = 200;
double[] sizes = new double[3];
TabItem tabItem1 = new TabItem();
tabItem1.Height = 10;
tabItem1.Width = 10;
TabItem tabItem2 = new TabItem();
tabItem2.Height = 10;
tabItem2.Width = 20;
TabItem tabItem3 = new TabItem();
tabItem3.Height = 10;
tabItem3.Width = 30;
tabControl.Items.Add(tabItem1);
tabControl.Items.Add(tabItem2);
tabControl.Items.Add(tabItem3);
FrameworkElement fe = null;
double selectedMarginSize = 0;
CreateAsyncTask(tabControl,
() => sizes = tabControl.ElementTabPanelTop.GetHeadersSize(),
// First Item Is Selected
() => fe = (tabItem1.GetTemplate(tabItem1.IsSelected, tabItem1.TabStripPlacement) as Panel).Children[0] as FrameworkElement,
() => selectedMarginSize += (Math.Abs(fe.Margin.Left + fe.Margin.Right)),
() => Assert.AreEqual(sizes[0], 10.0 + selectedMarginSize),
() => Assert.AreEqual(sizes[1], 20.0),
() => Assert.AreEqual(sizes[2], 30.0)
);
EnqueueTestComplete();
}
public void GetHeadersSizeTest()
{
TabControl tabControl = new TabControl();
tabControl.Height = 100;
tabControl.Width = 200;
double[] sizes = new double[3];
TabItem tabItem1 = new TabItem();
tabItem1.Height = 10;
tabItem1.Width = 10;
TabItem tabItem2 = new TabItem();
tabItem2.Height = 10;
tabItem2.Width = 20;
TabItem tabItem3 = new TabItem();
tabItem3.Height = 10;
tabItem3.Width = 30;
tabControl.Items.Add(tabItem1);
tabControl.Items.Add(tabItem2);
tabControl.Items.Add(tabItem3);
FrameworkElement fe = null;
double selectedMarginSize = 0;
CreateAsyncTask(tabControl,
() => sizes = tabControl.ElementTabPanelTop.GetHeadersSize(),
// First Item Is Selected
() => fe = (tabItem1.GetTemplate(tabItem1.IsSelected, tabItem1.TabStripPlacement) as Panel).Children[0] as FrameworkElement,
() => selectedMarginSize += (Math.Abs(fe.Margin.Left + fe.Margin.Right)),
() => Assert.AreEqual(sizes[0], 10.0 + selectedMarginSize),
() => Assert.AreEqual(sizes[1], 20.0),
() => Assert.AreEqual(sizes[2], 30.0)
);
EnqueueTestComplete();
}
public void UpdateVisualStateTest()
{
TabControl tabControl = new TabControl();
TabItem tabItem = new TabItem();
tabControl.Items.Add(tabItem);
tabItem.IsSelected = true;
tabControl.TabStripPlacement = Dock.Top;
tabItem.UpdateVisualState();
Assert.AreEqual(tabItem.ElementTemplateTopSelected, tabItem.GetTemplate(tabItem.IsSelected, tabItem.TabStripPlacement));
tabControl.TabStripPlacement = Dock.Bottom;
tabItem.UpdateVisualState();
Assert.AreEqual(tabItem.ElementTemplateBottomSelected, tabItem.GetTemplate(tabItem.IsSelected, tabItem.TabStripPlacement));
tabControl.TabStripPlacement = Dock.Left;
tabItem.UpdateVisualState();
Assert.AreEqual(tabItem.ElementTemplateLeftSelected, tabItem.GetTemplate(tabItem.IsSelected, tabItem.TabStripPlacement));
tabControl.TabStripPlacement = Dock.Right;
tabItem.UpdateVisualState();
Assert.AreEqual(tabItem.ElementTemplateRightSelected, tabItem.GetTemplate(tabItem.IsSelected, tabItem.TabStripPlacement));
}