public void InsertGrowsPara()
{
string contents = "This is the day.";
var engine = new FakeRenderEngine()
{
Ws = 34, SegmentHeight = 13
};
var factory = new FakeRendererFactory();
factory.SetRenderer(34, engine);
var styles = new AssembledStyles().WithWs(34);
var clientRuns = new List <IClientRun>();
var run = new StringClientRun(contents, styles);
clientRuns.Add(run);
var data1 = new MockData1(34, 35);
data1.SimpleThree = contents;
var source = new TextSource(clientRuns, null);
var para = new ParaBox(styles, source);
var hookup = new StringHookup(this, () => data1.SimpleThree, hook => data1.SimpleThreeChanged += hook.StringPropChanged,
hook => data1.SimpleThreeChanged -= hook.StringPropChanged, para);
hookup.Writer = newVal => data1.SimpleThree = newVal;
run.Hookup = hookup;
var extraBox = new BlockBox(styles, Color.Red, 50, 72000);
var root = new RootBoxFdo(styles);
root.SizeChanged += root_SizeChanged;
root.AddBox(para);
root.AddBox(extraBox);
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
Assert.IsTrue(m_sizeChangedCalled);
Assert.That(root.Height, Is.EqualTo(13 + 96));
Assert.That(root.Width, Is.EqualTo(FakeRenderEngine.SimulatedWidth(contents)));
int widthThisIsThe = FakeRenderEngine.SimulatedWidth("This is the");
layoutArgs = MakeLayoutInfo(widthThisIsThe + 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
Assert.That(root.Height, Is.EqualTo(26 + 96), "two line para is twice the height");
Assert.That(root.Width, Is.EqualTo(widthThisIsThe + 2), "two-line para occupies full available width");
Assert.That(extraBox.Top, Is.EqualTo(26));
PaintTransform ptrans = new PaintTransform(2, 4, 96, 100, 0, 10, 120, 128);
MockSite site = new MockSite();
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
m_sizeChangedCalled = false;
var ip = para.SelectAtEnd();
ip.InsertText(" We will be");
Assert.That(para.Height, Is.EqualTo(39), "inserted text makes para a line higher");
Assert.That(root.Height, Is.EqualTo(39 + 96), "root grows when para does");
Assert.That(root.Width, Is.EqualTo(widthThisIsThe + 2), "three-line para occupies full available width");
Assert.That(extraBox.Top, Is.EqualTo(39));
Assert.IsTrue(m_sizeChangedCalled);
}
