public void Ctor_UIElementTransform()
{
MatrixTransform transform = new MatrixTransform();
Assert.Throws <ArgumentNullException> (delegate {
new WriteableBitmap(null, transform);
}, "null,transform");
// not a FrameworkElement (which defines Height and Width properties)
UIElementTest.ConcreteUIElement ui = new UIElementTest.ConcreteUIElement();
// Transform is optional
WriteableBitmap wb = new WriteableBitmap(ui, null);
Assert.AreEqual(0, wb.PixelHeight, "UIElement-PixelHeight");
Assert.AreEqual(0, wb.PixelWidth, "UIElement-PixelWidth");
Assert.AreEqual(0, wb.Pixels.Length, "UIElement-Pixels");
// FrameworkElement
Rectangle r = new Rectangle();
wb = new WriteableBitmap(r, null);
Assert.AreEqual(0, wb.PixelHeight, "Empty-Rectangle-PixelHeight");
Assert.AreEqual(0, wb.PixelWidth, "Empty-Rectangle-PixelWidth");
Assert.AreEqual(0, wb.Pixels.Length, "Empty-Rectangle-Pixels");
r.Width = 10.9;
r.Height = 20.1;
wb = new WriteableBitmap(r, null);
Assert.AreEqual(20, wb.PixelHeight, "Rectangle-PixelHeight");
Assert.AreEqual(10, wb.PixelWidth, "Rectangle-PixelWidth");
Assert.AreEqual(200, wb.Pixels.Length, "Rectangle-Pixels");
ScaleTransform st = new ScaleTransform();
st.ScaleX = 2;
st.ScaleY = 0.5;
wb = new WriteableBitmap(r, st);
Assert.AreEqual(10, wb.PixelHeight, "Scaled-Rectangle-PixelHeight");
Assert.AreEqual(21, wb.PixelWidth, "Scaled-Rectangle-PixelWidth");
Assert.AreEqual(210, wb.Pixels.Length, "Scaled-Rectangle-Pixels");
}
public void Ctor_UIElementTransform ()
{
MatrixTransform transform = new MatrixTransform ();
Assert.Throws<ArgumentNullException> (delegate {
new WriteableBitmap (null, transform);
}, "null,transform");
// not a FrameworkElement (which defines Height and Width properties)
UIElementTest.ConcreteUIElement ui = new UIElementTest.ConcreteUIElement ();
// Transform is optional
WriteableBitmap wb = new WriteableBitmap (ui, null);
Assert.AreEqual (0, wb.PixelHeight, "UIElement-PixelHeight");
Assert.AreEqual (0, wb.PixelWidth, "UIElement-PixelWidth");
Assert.AreEqual (0, wb.Pixels.Length, "UIElement-Pixels");
// FrameworkElement
Rectangle r = new Rectangle ();
wb = new WriteableBitmap (r, null);
Assert.AreEqual (0, wb.PixelHeight, "Empty-Rectangle-PixelHeight");
Assert.AreEqual (0, wb.PixelWidth, "Empty-Rectangle-PixelWidth");
Assert.AreEqual (0, wb.Pixels.Length, "Empty-Rectangle-Pixels");
r.Width = 10.9;
r.Height = 20.1;
wb = new WriteableBitmap (r, null);
Assert.AreEqual (20, wb.PixelHeight, "Rectangle-PixelHeight");
Assert.AreEqual (10, wb.PixelWidth, "Rectangle-PixelWidth");
Assert.AreEqual (200, wb.Pixels.Length, "Rectangle-Pixels");
ScaleTransform st = new ScaleTransform ();
st.ScaleX = 2;
st.ScaleY = 0.5;
wb = new WriteableBitmap (r, st);
Assert.AreEqual (10, wb.PixelHeight, "Scaled-Rectangle-PixelHeight");
Assert.AreEqual (21, wb.PixelWidth, "Scaled-Rectangle-PixelWidth");
Assert.AreEqual (210, wb.Pixels.Length, "Scaled-Rectangle-Pixels");
}
