protected override Size ArrangeOverride(Size finalSize)
{
BaseArea.Arrange(new Rect(0, 0, finalSize.Width, finalSize.Height));
if (AutoMatic == true)
{
DispalyArea.Arrange(new Rect(0, 0, finalSize.Width, finalSize.Height));
ImageListViewer.Arrange(new Rect(0, 0, 0, 0));
}
else
{
DispalyArea.Arrange(new Rect(0, 0, finalSize.Width, finalSize.Height - 158));
ImageListViewer.Arrange(new Rect(0, finalSize.Height - 158, finalSize.Width, 158));
}
img1.Height = DispalyArea.ActualHeight;
img1.Width = DispalyArea.ActualWidth;
img2.Height = DispalyArea.ActualHeight;
img2.Width = DispalyArea.ActualWidth;
scalelatetrans1.CenterX = DispalyArea.ActualWidth / 2;
scalelatetrans1.CenterY = DispalyArea.ActualHeight / 2;
scalelatetrans2.CenterX = DispalyArea.ActualWidth / 2;
scalelatetrans2.CenterY = DispalyArea.ActualHeight / 2;
return(finalSize);
}
public void ScrollViewerComputedVisibilityTest()
{
string text = @"
<ScrollViewer xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
Width='200' Height='100' HorizontalScrollBarVisibility='Auto' VerticalScrollBarVisibility='Auto'>
<ScrollViewer.Template>
<ControlTemplate TargetType='{x:Type ScrollViewer}'>
<ScrollContentPresenter x:Name='PART_ScrollContentPresenter' Content='{TemplateBinding Content}'/>
</ControlTemplate>
</ScrollViewer.Template>
<Border x:Name='border'/>
</ScrollViewer>";
ScrollViewer scrollViewer = XamlLoader.Load(XamlParser.Parse(text)) as ScrollViewer;
scrollViewer.IsRootElement = true;
scrollViewer.Measure(Size.Infinity);
scrollViewer.Arrange(new Rect(scrollViewer.DesiredSize));
Border border = NameScope.GetNameScope(scrollViewer).FindName("border") as Border;
border.Width = 10;
border.Height = 10;
Assert.AreEqual(Visibility.Collapsed, scrollViewer.ComputedHorizontalScrollBarVisibility);
Assert.AreEqual(Visibility.Collapsed, scrollViewer.ComputedVerticalScrollBarVisibility);
Assert.AreEqual(border.Width, scrollViewer.ExtentWidth);
Assert.AreEqual(border.Height, scrollViewer.ExtentHeight);
border.Width = 1000;
border.Height = 1000;
Assert.AreEqual(Visibility.Visible, scrollViewer.ComputedHorizontalScrollBarVisibility);
Assert.AreEqual(Visibility.Visible, scrollViewer.ComputedVerticalScrollBarVisibility);
Assert.AreEqual(border.Width, scrollViewer.ExtentWidth);
Assert.AreEqual(border.Height, scrollViewer.ExtentHeight);
border.Width = 10;
border.Height = 1000;
Assert.AreEqual(Visibility.Collapsed, scrollViewer.ComputedHorizontalScrollBarVisibility);
Assert.AreEqual(Visibility.Visible, scrollViewer.ComputedVerticalScrollBarVisibility);
Assert.AreEqual(border.Width, scrollViewer.ExtentWidth);
Assert.AreEqual(border.Height, scrollViewer.ExtentHeight);
border.Width = 1000;
border.Height = 10;
Assert.AreEqual(Visibility.Visible, scrollViewer.ComputedHorizontalScrollBarVisibility);
Assert.AreEqual(Visibility.Collapsed, scrollViewer.ComputedVerticalScrollBarVisibility);
Assert.AreEqual(border.Width, scrollViewer.ExtentWidth);
Assert.AreEqual(border.Height, scrollViewer.ExtentHeight);
}
protected override Size ArrangeOverride(Size finalSize)
{
if ((finalSize.Width > 0) && (finalSize.Height > 0))
{
double width = finalSize.Width - Padding.Left - Padding.Right;
double height = finalSize.Height - Padding.Top - Padding.Bottom;
if ((width > 0) && (height > 0))
{
wrapper.Arrange(new Rect(Padding.Left, Padding.Top, width, height));
}
else
{
wrapper.Arrange(new Rect(0, 0, 0, 0));
}
ArrangeBackground(finalSize);
}
return(finalSize);
}
protected override Size ArrangeOverride(Size finalSize)
{
if (!finalSize.IsEmpty)
{
wrapper.Arrange(new Rect(0, 0, finalSize.Width, finalSize.Height));
return(finalSize);
}
else
{
return(new Size(0, 0));
}
}
/// <summary>
/// Normally the presentation framework would arrange our child objects
/// based on their visible size. Since we are tyring to show scrolling
/// beyond that size, we override the ArrangeOverride method to layout
/// elements in an arrangement that is larger than the screen.
/// </summary>
/// <param name="arrangeWidth"></param>
/// <param name="arrangeHeight"></param>
protected override void ArrangeOverride(int arrangeWidth, int arrangeHeight)
{
base.ArrangeOverride(arrangeWidth, arrangeHeight);
// Set the ScrollViewer's width and height to allow room for
// the scroll bars.
_viewer.Width = arrangeWidth - _vScrollWidth;
_viewer.Height = arrangeHeight - _hScrollHeight;
_viewer.Arrange(0, 0, _viewer.Width, _viewer.Height);
// Set the ScrollText's width and height to be twice as big as the
// allowed area.
ScrollText.Width = arrangeWidth * 2;
ScrollText.Height = arrangeHeight * 2;
ScrollText.UpdateLayout();
}
public void ScrollViewerSize()
{
StackPanel stackPanel;
ScrollContentPresenter scrollContentPresenter;
ScrollViewer scrollViewer;
stackPanel = new StackPanel();
stackPanel.Height = 600;
scrollContentPresenter = new ScrollContentPresenter();
scrollContentPresenter.Content = stackPanel;
scrollViewer = new ScrollViewer();
scrollViewer.Content = scrollContentPresenter;
scrollViewer.Measure(new Vector2(100, 300));
scrollViewer.Arrange(new BoundingRectangle(0, 0, 100, 300));
Assert.AreEqual(100, scrollViewer.ActualWidth);
Assert.AreEqual(300, scrollViewer.ActualHeight);
Assert.AreEqual(0, scrollContentPresenter.Extent.X);
Assert.AreEqual(600, scrollContentPresenter.Extent.Y);
Assert.AreEqual(100, scrollContentPresenter.Viewport.X);
Assert.AreEqual(300, scrollContentPresenter.Viewport.Y);
Assert.AreEqual(0, scrollContentPresenter.Offset.X);
Assert.AreEqual(0, scrollContentPresenter.Offset.Y);
scrollContentPresenter.SetVerticalOffset(100);
Assert.AreEqual(0, scrollContentPresenter.Offset.X);
Assert.AreEqual(100, scrollContentPresenter.Offset.Y);
Assert.AreEqual(100, scrollContentPresenter.Viewport.X);
Assert.AreEqual(300, scrollContentPresenter.Viewport.Y);
}
public void TestScrolling()
{
const float elementWidth = 100;
const float elementHeight = 200;
const float elementDepth = 300;
var rand = new Random();
var scrollViewer = new ScrollViewer {
ScrollMode = ScrollingMode.HorizontalVertical, Width = elementWidth, Height = elementHeight, Depth = elementDepth
};
scrollViewer.Measure(Vector3.Zero);
scrollViewer.Arrange(Vector3.Zero, false);
// tests that no crashes happen with no content
scrollViewer.ScrollTo(rand.NextVector3());
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollOf(rand.NextVector3());
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.Horizontal);
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.InDepth);
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.Horizontal);
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.InDepth);
Assert.AreEqual(Vector3.Zero, ScrollPosition);
// tests with an arranged element
const float contentWidth = 1000;
const float contentHeight = 2000;
const float contentDepth = 3000;
var content = new ContentDecorator {
Width = contentWidth, Height = contentHeight, Depth = contentDepth
};
scrollViewer.Content = content;
scrollViewer.Measure(Vector3.Zero);
scrollViewer.Arrange(Vector3.Zero, false);
var scrollValue = new Vector3(123, 456, 789);
scrollViewer.ScrollTo(scrollValue);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.Horizontal);
Assert.AreEqual(new Vector3(contentWidth - elementWidth, scrollValue.Y, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.Vertical);
Assert.AreEqual(new Vector3(contentWidth - elementWidth, contentHeight - elementHeight, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.InDepth);
Assert.AreEqual(new Vector3(contentWidth - elementWidth, contentHeight - elementHeight, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.Horizontal);
Assert.AreEqual(new Vector3(0, contentHeight - elementHeight, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.Vertical);
Assert.AreEqual(new Vector3(0, 0, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.InDepth);
Assert.AreEqual(new Vector3(0, 0, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollOf(scrollValue);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
// tests with an not arranged element
content.InvalidateArrange();
scrollViewer.ScrollTo(scrollValue);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollOf(2 * scrollValue);
scrollViewer.ScrollTo(scrollValue);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollToEnd(Orientation.Horizontal);
scrollViewer.ScrollToEnd(Orientation.Vertical);
scrollViewer.ScrollToEnd(Orientation.InDepth);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(contentWidth - elementWidth, contentHeight - elementHeight, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollToBeginning(Orientation.Horizontal);
scrollViewer.ScrollToBeginning(Orientation.Vertical);
scrollViewer.ScrollToBeginning(Orientation.InDepth);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(0, 0, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollOf(scrollValue);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollToBeginning(Orientation.Horizontal);
scrollViewer.ScrollToBeginning(Orientation.Vertical);
scrollViewer.ScrollToBeginning(Orientation.InDepth);
scrollViewer.ScrollOf(scrollValue);
scrollViewer.ScrollOf(scrollValue);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(2 * scrollValue.X, 2 * scrollValue.Y, 0), scrollViewer.ScrollPosition);
}
public void TestScrolling()
{
const float elementWidth = 100;
const float elementHeight = 200;
const float elementDepth = 300;
var rand = new Random();
var scrollViewer = new ScrollViewer { ScrollMode = ScrollingMode.HorizontalVertical, Width = elementWidth, Height = elementHeight, Depth = elementDepth };
scrollViewer.Measure(Vector3.Zero);
scrollViewer.Arrange(Vector3.Zero, false);
// tests that no crashes happen with no content
scrollViewer.ScrollTo(rand.NextVector3());
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollOf(rand.NextVector3());
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.Horizontal);
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.InDepth);
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.Horizontal);
Assert.AreEqual(Vector3.Zero, ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.InDepth);
Assert.AreEqual(Vector3.Zero, ScrollPosition);
// tests with an arranged element
const float contentWidth = 1000;
const float contentHeight = 2000;
const float contentDepth = 3000;
var content = new ContentDecorator { Width = contentWidth, Height = contentHeight, Depth = contentDepth };
scrollViewer.Content = content;
scrollViewer.Measure(Vector3.Zero);
scrollViewer.Arrange(Vector3.Zero, false);
var scrollValue = new Vector3(123, 456, 789);
scrollViewer.ScrollTo(scrollValue);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.Horizontal);
Assert.AreEqual(new Vector3(contentWidth - elementWidth, scrollValue.Y, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.Vertical);
Assert.AreEqual(new Vector3(contentWidth - elementWidth, contentHeight - elementHeight, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToEnd(Orientation.InDepth);
Assert.AreEqual(new Vector3(contentWidth - elementWidth, contentHeight - elementHeight, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.Horizontal);
Assert.AreEqual(new Vector3(0, contentHeight - elementHeight, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.Vertical);
Assert.AreEqual(new Vector3(0, 0, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollToBeginning(Orientation.InDepth);
Assert.AreEqual(new Vector3(0, 0, 0), scrollViewer.ScrollPosition);
scrollViewer.ScrollOf(scrollValue);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
// tests with an not arranged element
content.InvalidateArrange();
scrollViewer.ScrollTo(scrollValue);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollOf(2*scrollValue);
scrollViewer.ScrollTo(scrollValue);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollToEnd(Orientation.Horizontal);
scrollViewer.ScrollToEnd(Orientation.Vertical);
scrollViewer.ScrollToEnd(Orientation.InDepth);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(contentWidth - elementWidth, contentHeight - elementHeight, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollToBeginning(Orientation.Horizontal);
scrollViewer.ScrollToBeginning(Orientation.Vertical);
scrollViewer.ScrollToBeginning(Orientation.InDepth);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(0, 0, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollOf(scrollValue);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(scrollValue.X, scrollValue.Y, 0), scrollViewer.ScrollPosition);
content.InvalidateArrange();
scrollViewer.ScrollToBeginning(Orientation.Horizontal);
scrollViewer.ScrollToBeginning(Orientation.Vertical);
scrollViewer.ScrollToBeginning(Orientation.InDepth);
scrollViewer.ScrollOf(scrollValue);
scrollViewer.ScrollOf(scrollValue);
scrollViewer.Arrange(Vector3.Zero, false);
Assert.AreEqual(new Vector3(2*scrollValue.X, 2*scrollValue.Y, 0), scrollViewer.ScrollPosition);
}