public void DragStartsOnMoveInSelection()
{
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 source = new TextSource(clientRuns, null);
var para = new ParaBox(styles, source);
var extraBox = new BlockBox(styles, Color.Red, 50, 72000); // tall, narrow spacer at top
var root = new RootBoxFdo(styles);
root.AddBox(extraBox);
root.AddBox(para);
var layoutArgs = MakeLayoutInfo(Int32.MaxValue/2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
Assert.That(root.Height, Is.EqualTo(96 + 13));
Assert.That(root.Width, Is.EqualTo(FakeRenderEngine.SimulatedWidth(contents)));
var ip1 = run.SelectAt(para, 5, false);
var ip2 = run.SelectAt(para, 7, true);
var range = new RangeSelection(ip1, ip2);
range.Install();
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
var sbox = para.FirstBox as StringBox;
MockSite site = new MockSite();
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
int indent = FakeRenderEngine.SimulatedWidth("This ");
root.OnMouseDown(new MouseEventArgs(MouseButtons.Left, 1, indent + 5, 100, 0), Keys.None, m_gm.VwGraphics, ptrans);
root.OnMouseMove(new MouseEventArgs(MouseButtons.Left, 1, indent + 5, 100, 0), Keys.None, m_gm.VwGraphics, ptrans);
Assert.That(GetStringDropData(site), Is.EqualTo("is"));
Assert.That(site.LastDoDragDropArgs.AllowedEffects, Is.EqualTo(DragDropEffects.Copy),
"editing not possible in this paragraph, we can only copy");
Assert.That(root.Selection, Is.EqualTo(range), "selection should not be changed by drag drop");
site.LastDoDragDropArgs = null;
root.OnMouseDown(new MouseEventArgs(MouseButtons.Left, 1, 3, 100, 0), Keys.None, m_gm.VwGraphics, ptrans);
Assert.That(site.LastDoDragDropArgs, Is.Null, "click outside selection should not initiate drag");
// Tack on an extra check that a read-only view does not handle drop.
var dataObj = new DataObject(DataFormats.StringFormat, "new ");
var dragArgs = new DragEventArgs(dataObj, (int)DragDropKeyStates.ControlKey, 10, 8,
DragDropEffects.Copy | DragDropEffects.Move,
DragDropEffects.None);
root.OnDragEnter(dragArgs, new Point(14, 8), m_gm.VwGraphics, ptrans);
Assert.That(dragArgs.Effect, Is.EqualTo(DragDropEffects.None));
Assert.That(root.DragState, Is.EqualTo(WindowDragState.DraggingHere));
}
private void InitRedBox()
{
var styles = new AssembledStyles();
RootBox root = new RootBoxFdo(styles);
var block = new BlockBox(styles, Color.Red, 72000, 36000);
root.AddBox(block);
theSharpView.Root = root;
}
private void InitSeveralBoxes()
{
var styles = new AssembledStyles();
RootBox root = new RootBoxFdo(styles);
var items = new List <IClientRun>();
items.Add(new BlockBox(styles, Color.Red, 72000, 36000));
items.Add(new BlockBox(styles, Color.Blue, 36000, 18000));
items.Add(new BlockBox(styles, Color.Orange, 18000, 36000));
items.Add(new BlockBox(styles, Color.Green, 72000, 18000));
items.Add(new ImageBox(styles.WithBackColor(Color.Pink).WithBorderColor(Color.Blue)
.WithBorders(new Thickness(2.0)).WithPads(new Thickness(4.0)), new Icon(SystemIcons.Shield, 40, 40).ToBitmap()));
items.Add(new BlockBox(styles, Color.Yellow, 72000, 36000));
var source = new TextSource(items);
var para = new ParaBox(styles, source);
root.AddBox(para);
theSharpView.Root = root;
}
public void BidiLayout()
{
string content1 = "This is the ";
string contentRtl = "day ";
string content3 = "that ";
// Two writing systems
int wsLtr = 5;
int wsRtl = 6;
// Two corresponding renderers
var factory = new FakeRendererFactory();
var engineLtr = new FakeRenderEngine() { Ws = wsLtr, SegmentHeight = 13 };
factory.SetRenderer(wsLtr, engineLtr);
var engineRtl = new FakeRenderEngine() {Ws = wsRtl, SegmentHeight = 13 };
engineRtl.RightToLeft = true;
factory.SetRenderer(wsRtl, engineRtl);
// Two corresponding styles (and a vanilla one)
var styles = new AssembledStyles();
var stylesLtr = new AssembledStyles().WithWs(wsLtr);
var stylesRtl = new AssembledStyles().WithWs(wsRtl);
var clientRuns = new List<IClientRun>();
var run1 = new StringClientRun(content1, stylesLtr);
clientRuns.Add(run1);
var runRtl = new StringClientRun(contentRtl, stylesRtl);
clientRuns.Add(runRtl);
var run3 = new StringClientRun(content3, stylesLtr);
clientRuns.Add(run3);
var root = new RootBoxFdo(styles);
var source = new TextSource(clientRuns, null);
var para = new ParaBox(styles, source);
root.AddBox(para);
var stylesParaRtl = styles.WithRightToLeft(true);
var sourceRtl = new TextSource(clientRuns, null);
var paraRtl = new ParaBox(stylesParaRtl, sourceRtl);
root.AddBox(paraRtl);
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
// "day " being upstream should make two distinct boxes.
// We should get something like
// "This is the yad that ", where the space between "yad" and "that" is the one that
// follows the 'y' in "day".
var box1 = para.FirstBox as StringBox;
var box2 = box1.Next as StringBox;
var box3 = box2.Next as StringBox;
var box4 = box3.Next as StringBox;
Assert.That(box4, Is.Not.Null);
Assert.That(box1.Segment.get_Lim(box1.IchMin) == content1.Length);
Assert.That(box2.Segment.get_Lim(box2.IchMin) == contentRtl.Length - 1);
Assert.That(box3.Segment.get_Lim(box3.IchMin) == 1);
Assert.That(box4.Segment.get_Lim(box4.IchMin) == content3.Length);
Assert.That(box1.Left, Is.LessThan(box2.Left));
Assert.That(box2.Left, Is.LessThan(box3.Left));
Assert.That(box3.Left, Is.LessThan(box4.Left));
// In the second paragraph, the two LRT runs are upstream. We should get boxes
// "This is the", " ", "day ", "that" and " " (but the final space will have zero width at end of line)
// The effect should be something like
// that yad This is the", where the space between "yad" and "This" is the one following "the",
// and the one between "that" and "yad" is the one following "day", and the space following "that"
// is invisible at the end of the line to the left of 'that'.
var boxR1 = paraRtl.FirstBox as StringBox;
var boxR2 = boxR1.Next as StringBox;
var boxR3 = boxR2.Next as StringBox;
var boxR4 = boxR3.Next as StringBox;
var boxR5 = boxR4.Next as StringBox;
Assert.That(boxR5, Is.Not.Null);
Assert.That(boxR1.Segment.get_Lim(boxR1.IchMin) == content1.Length - 1);
Assert.That(boxR2.Segment.get_Lim(boxR2.IchMin) == 1);
Assert.That(boxR3.Segment.get_Lim(boxR3.IchMin) == contentRtl.Length);
Assert.That(boxR4.Segment.get_Lim(boxR4.IchMin) == content3.Length - 1);
Assert.That(boxR5.Segment.get_Lim(boxR5.IchMin) == 1);
}
public void DragStartsOnMoveInSelection()
{
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 source = new TextSource(clientRuns, null);
var para = new ParaBox(styles, source);
var extraBox = new BlockBox(styles, Color.Red, 50, 72000); // tall, narrow spacer at top
var root = new RootBoxFdo(styles);
root.AddBox(extraBox);
root.AddBox(para);
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
Assert.That(root.Height, Is.EqualTo(96 + 13));
Assert.That(root.Width, Is.EqualTo(FakeRenderEngine.SimulatedWidth(contents)));
var ip1 = run.SelectAt(para, 5, false);
var ip2 = run.SelectAt(para, 7, true);
var range = new RangeSelection(ip1, ip2);
range.Install();
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
var sbox = para.FirstBox as StringBox;
MockSite site = new MockSite();
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
int indent = FakeRenderEngine.SimulatedWidth("This ");
root.OnMouseDown(new MouseEventArgs(MouseButtons.Left, 1, indent + 5, 100, 0), Keys.None, m_gm.VwGraphics, ptrans);
root.OnMouseMove(new MouseEventArgs(MouseButtons.Left, 1, indent + 5, 100, 0), Keys.None, m_gm.VwGraphics, ptrans);
Assert.That(GetStringDropData(site), Is.EqualTo("is"));
Assert.That(site.LastDoDragDropArgs.AllowedEffects, Is.EqualTo(DragDropEffects.Copy),
"editing not possible in this paragraph, we can only copy");
Assert.That(root.Selection, Is.EqualTo(range), "selection should not be changed by drag drop");
site.LastDoDragDropArgs = null;
root.OnMouseDown(new MouseEventArgs(MouseButtons.Left, 1, 3, 100, 0), Keys.None, m_gm.VwGraphics, ptrans);
Assert.That(site.LastDoDragDropArgs, Is.Null, "click outside selection should not initiate drag");
// Tack on an extra check that a read-only view does not handle drop.
var dataObj = new DataObject(DataFormats.StringFormat, "new ");
var dragArgs = new DragEventArgs(dataObj, (int)DragDropKeyStates.ControlKey, 10, 8,
DragDropEffects.Copy | DragDropEffects.Move,
DragDropEffects.None);
root.OnDragEnter(dragArgs, new Point(14, 8), m_gm.VwGraphics, ptrans);
Assert.That(dragArgs.Effect, Is.EqualTo(DragDropEffects.None));
Assert.That(root.DragState, Is.EqualTo(WindowDragState.DraggingHere));
}
public void Contains()
{
var styles = new AssembledStyles();
var runStyle = styles.WithWs(32);
var root = new RootBoxFdo(styles);
var para1 = MakePara(styles, runStyle, "This is the day");
var para2 = MakePara(styles, runStyle, "that the Lord has made");
var para3 = MakePara(styles, runStyle, "We will rejoice");
var div = new DivBox(styles);
var para4 = MakePara(styles, runStyle, "and be glad in it");
var para5 = MakePara(styles, runStyle, "");
var para6 = MakePara(styles, runStyle, "Rejoice!");
root.AddBox(para1);
root.AddBox(para2);
div.AddBox(para3);
div.AddBox(para4);
root.AddBox(div);
root.AddBox(para5);
root.AddBox(para6);
var run1 = para1.Source.ClientRuns[0] as StringClientRun;
var ip1_0 = run1.SelectAt(para1, 0, false);
var ip1_2p = run1.SelectAt(para1, 2, true);
var range1_0_2 = new RangeSelection(ip1_0, ip1_2p);
Assert.That(range1_0_2.Contains(ip1_0), Is.True, "selection at start of range is included");
Assert.That(range1_0_2.Contains(ip1_2p), Is.True, "selection at end of range is included");
var ip1_1p = run1.SelectAt(para1, 1, true);
Assert.That(range1_0_2.Contains(ip1_1p), Is.True, "selection in middle of 1-para range is included");
var ip1_3p = run1.SelectAt(para1, 3, true);
Assert.That(range1_0_2.Contains(ip1_3p), Is.False);
var ip1_2a = run1.SelectAt(para1, 2, false);
Assert.That(range1_0_2.Contains(ip1_2a), Is.False, "ip at end associated following is not included");
var ip1_5p = run1.SelectAt(para1, 5, true);
var range1_2_5 = new RangeSelection(ip1_2a, ip1_5p);
Assert.That(range1_2_5.Contains(ip1_0), Is.False, "IP before start in same para not included");
Assert.That(range1_2_5.Contains(ip1_2p), Is.False, "IP at start associated previous not included");
Assert.That(range1_2_5.Contains(ip1_2a), Is.True, "IP at start not associated previous is included");
var run2 = para2.Source.ClientRuns[0] as StringClientRun;
var ip2_2p = run2.SelectAt(para2, 2, true);
Assert.That(range1_2_5.Contains(ip2_2p), Is.False, "IP in following paragraph not included");
var ip2_5p = run2.SelectAt(para2, 5, true);
var ip2_2a = run2.SelectAt(para2, 2, false);
var range2_5_2 = new RangeSelection(ip2_5p, ip2_2a);
var ip2_3a = run2.SelectAt(para2, 3, false);
Assert.That(range2_5_2.Contains(ip2_3a), Is.True, "IP in middle of backwards selection is included");
Assert.That(range2_5_2.Contains(ip1_2a), Is.False, "IP in previous para not included");
var run6 = para6.Source.ClientRuns[0] as StringClientRun;
var ip6_2p = run6.SelectAt(para6, 2, true);
var ip1_5a = run1.SelectAt(para1, 5, false);
var range1_5_6_2 = new RangeSelection(ip1_5a, ip6_2p);
Assert.That(range1_5_6_2.Contains(ip1_0), Is.False, "IP before multi-para not included");
Assert.That(range1_5_6_2.Contains(ip1_3p), Is.False, "IP before multi-para not included, even with offset > end offset");
var ip6_4a = run6.SelectAt(para6, 4, false);
Assert.That(range1_5_6_2.Contains(ip6_4a), Is.False, "IP after multi-para not included, even with offset < start offset");
Assert.That(range1_5_6_2.Contains(ip2_3a), Is.True, "IP middle para of multi is included");
var run4 = para4.Source.ClientRuns[0] as StringClientRun;
var ip40 = run4.SelectAt(para4, 0, false);
Assert.That(range1_5_6_2.Contains(ip40), Is.True, "IP in div within multi is included");
var run5 = para5.Source.ClientRuns[0] as StringClientRun;
var ip50a = run5.SelectAt(para5, 0, false);
Assert.That(range1_5_6_2.Contains(ip50a), Is.True, "IP in empty para within multi is included");
// I'm not absolutely sure this is the right design, but it's rather arbitrary whether an IP in an empty
// paragraph associates forward or backward. If a range extends to the empty paragraph, I think it should
// be included either way.
var range1_5_5_0 = new RangeSelection(ip1_5a, ip50a);
Assert.That(range1_5_5_0.Contains(ip50a), Is.True, "IP (ap false) in empty para at end of multi is included");
var range5_0_6_2 = new RangeSelection(ip50a, ip6_2p);
Assert.That(range5_0_6_2.Contains(ip50a), Is.True, "IP (ap false) in empty para at start of multi is included");
var ip50p = run5.SelectAt(para5, 0, true);
Assert.That(range1_5_5_0.Contains(ip50p), Is.True, "IP (ap true) in empty para at end of multi is included");
Assert.That(range5_0_6_2.Contains(ip50p), Is.True, "IP (ap true) in empty para at end of multi is included");
}
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);
}
public void Contains()
{
var styles = new AssembledStyles();
var runStyle = styles.WithWs(32);
var root = new RootBoxFdo(styles);
var para1 = MakePara(styles, runStyle, "This is the day");
var para2 = MakePara(styles, runStyle, "that the Lord has made");
var para3 = MakePara(styles, runStyle, "We will rejoice");
var div = new DivBox(styles);
var para4 = MakePara(styles, runStyle, "and be glad in it");
var para5 = MakePara(styles, runStyle, "");
var para6 = MakePara(styles, runStyle, "Rejoice!");
root.AddBox(para1);
root.AddBox(para2);
div.AddBox(para3);
div.AddBox(para4);
root.AddBox(div);
root.AddBox(para5);
root.AddBox(para6);
var run1 = para1.Source.ClientRuns[0] as StringClientRun;
var ip1_0 = run1.SelectAt(para1, 0, false);
var ip1_2p = run1.SelectAt(para1, 2, true);
var range1_0_2 = new RangeSelection(ip1_0, ip1_2p);
Assert.That(range1_0_2.Contains(ip1_0), Is.True, "selection at start of range is included");
Assert.That(range1_0_2.Contains(ip1_2p), Is.True, "selection at end of range is included");
var ip1_1p = run1.SelectAt(para1, 1, true);
Assert.That(range1_0_2.Contains(ip1_1p), Is.True, "selection in middle of 1-para range is included");
var ip1_3p = run1.SelectAt(para1, 3, true);
Assert.That(range1_0_2.Contains(ip1_3p), Is.False);
var ip1_2a = run1.SelectAt(para1, 2, false);
Assert.That(range1_0_2.Contains(ip1_2a), Is.False, "ip at end associated following is not included");
var ip1_5p = run1.SelectAt(para1, 5, true);
var range1_2_5 = new RangeSelection(ip1_2a, ip1_5p);
Assert.That(range1_2_5.Contains(ip1_0), Is.False, "IP before start in same para not included");
Assert.That(range1_2_5.Contains(ip1_2p), Is.False, "IP at start associated previous not included");
Assert.That(range1_2_5.Contains(ip1_2a), Is.True, "IP at start not associated previous is included");
var run2 = para2.Source.ClientRuns[0] as StringClientRun;
var ip2_2p = run2.SelectAt(para2, 2, true);
Assert.That(range1_2_5.Contains(ip2_2p), Is.False, "IP in following paragraph not included");
var ip2_5p = run2.SelectAt(para2, 5, true);
var ip2_2a = run2.SelectAt(para2, 2, false);
var range2_5_2 = new RangeSelection(ip2_5p, ip2_2a);
var ip2_3a = run2.SelectAt(para2, 3, false);
Assert.That(range2_5_2.Contains(ip2_3a), Is.True, "IP in middle of backwards selection is included");
Assert.That(range2_5_2.Contains(ip1_2a), Is.False, "IP in previous para not included");
var run6 = para6.Source.ClientRuns[0] as StringClientRun;
var ip6_2p = run6.SelectAt(para6, 2, true);
var ip1_5a = run1.SelectAt(para1, 5, false);
var range1_5_6_2 = new RangeSelection(ip1_5a, ip6_2p);
Assert.That(range1_5_6_2.Contains(ip1_0), Is.False, "IP before multi-para not included");
Assert.That(range1_5_6_2.Contains(ip1_3p), Is.False, "IP before multi-para not included, even with offset > end offset");
var ip6_4a = run6.SelectAt(para6, 4, false);
Assert.That(range1_5_6_2.Contains(ip6_4a), Is.False, "IP after multi-para not included, even with offset < start offset");
Assert.That(range1_5_6_2.Contains(ip2_3a), Is.True, "IP middle para of multi is included");
var run4 = para4.Source.ClientRuns[0] as StringClientRun;
var ip40 = run4.SelectAt(para4, 0, false);
Assert.That(range1_5_6_2.Contains(ip40), Is.True, "IP in div within multi is included");
var run5 = para5.Source.ClientRuns[0] as StringClientRun;
var ip50a = run5.SelectAt(para5, 0, false);
Assert.That(range1_5_6_2.Contains(ip50a), Is.True, "IP in empty para within multi is included");
// I'm not absolutely sure this is the right design, but it's rather arbitrary whether an IP in an empty
// paragraph associates forward or backward. If a range extends to the empty paragraph, I think it should
// be included either way.
var range1_5_5_0 = new RangeSelection(ip1_5a, ip50a);
Assert.That(range1_5_5_0.Contains(ip50a), Is.True, "IP (ap false) in empty para at end of multi is included");
var range5_0_6_2 = new RangeSelection(ip50a, ip6_2p);
Assert.That(range5_0_6_2.Contains(ip50a), Is.True, "IP (ap false) in empty para at start of multi is included");
var ip50p = run5.SelectAt(para5, 0, true);
Assert.That(range1_5_5_0.Contains(ip50p), Is.True, "IP (ap true) in empty para at end of multi is included");
Assert.That(range5_0_6_2.Contains(ip50p), Is.True, "IP (ap true) in empty para at end of multi is included");
}
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);
}
