public void Select()
{
var styles = new AssembledStyles();
var root = new RootBoxFdo(styles);
var mock1 = new MockData1(23, 23);
mock1.SimpleThree = "new old contents";
var engine = new FakeRenderEngine() { Ws = 23, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(23, engine);
root.Builder.Show(Display.Of(() => mock1.SimpleThree, 23));
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
MockSite site = new MockSite();
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
int x = FakeRenderEngine.SimulatedWidth("new ") + 2;
var location = new Point(x, 8);
EventArgs e = new EventArgs();
MouseEventArgs m = new MouseEventArgs(MouseButtons.Left, 1, location.X, location.Y, 0);
root.OnMouseDown(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnDoubleClick(e);
Assert.That(!root.Selection.IsInsertionPoint, "Should be ranged selection");
Assert.That((root.Selection as RangeSelection).SelectedText(), Is.EqualTo("old "));
mock1.SimpleThree = "new old:contents";
x = FakeRenderEngine.SimulatedWidth("new o") + 2;
location = new Point(x, 8);
m = new MouseEventArgs(MouseButtons.Left, 1, location.X, location.Y, 0);
root.OnMouseDown(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnMouseClick(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnDoubleClick(e);
Assert.That(!root.Selection.IsInsertionPoint, "Should be ranged selection");
Assert.That((root.Selection as RangeSelection).SelectedText(), Is.EqualTo("old"));
mock1.SimpleThree = "new(old contents";
x = FakeRenderEngine.SimulatedWidth("new ol") + 2;
location = new Point(x, 8);
m = new MouseEventArgs(MouseButtons.Left, 1, location.X, location.Y, 0);
root.OnMouseDown(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnMouseClick(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnDoubleClick(e);
Assert.That(!root.Selection.IsInsertionPoint, "Should be ranged selection");
Assert.That((root.Selection as RangeSelection).SelectedText(), Is.EqualTo("old "));
mock1.SimpleThree = "newo1dcontents";
x = FakeRenderEngine.SimulatedWidth("new o1d") + 2;
location = new Point(x, 8);
m = new MouseEventArgs(MouseButtons.Left, 1, location.X, location.Y, 0);
root.OnMouseDown(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnMouseClick(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnDoubleClick(e);
Assert.That(!root.Selection.IsInsertionPoint, "Should be ranged selection");
Assert.That((root.Selection as RangeSelection).SelectedText(), Is.EqualTo("newo1dcontents"));
}
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 BasicDrop()
{
var styles = new AssembledStyles();
var root = new RootBoxFdo(styles);
var mock1 = new MockData1(23, 23);
mock1.SimpleThree = "old contents";
var engine = new FakeRenderEngine() { Ws = 23, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(23, engine);
root.Builder.Show(Display.Of(() => mock1.SimpleThree, 23));
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
MockSite site = new MockSite();
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
var dataObj = new DataObject(DataFormats.StringFormat, "new ");
int x = FakeRenderEngine.SimulatedWidth("old ") + 2;
var location = new Point(x, 8);
// A drag to where we can drop, allowing both copy and move, no keys held
var dragArgs = new DragEventArgs(dataObj, (int) DragDropKeyStates.None, 200,300,
DragDropEffects.Copy | DragDropEffects.Move,
DragDropEffects.None);
root.OnDragEnter(dragArgs, location, m_gm.VwGraphics, ptrans);
Assert.That(dragArgs.Effect, Is.EqualTo(DragDropEffects.Move));
Assert.That(root.DragState, Is.EqualTo(WindowDragState.DraggingHere));
root.OnDragLeave();
Assert.That(root.DragState, Is.EqualTo(WindowDragState.None));
// Though other factors would favor move, only copy is allowed here.
dragArgs = new DragEventArgs(dataObj, (int)DragDropKeyStates.None, 200,300,
DragDropEffects.Copy,
DragDropEffects.None);
root.OnDragEnter(dragArgs, location, m_gm.VwGraphics, ptrans);
Assert.That(dragArgs.Effect, Is.EqualTo(DragDropEffects.Copy));
// Though otherwise we could copy, there is no text data in the data object.
dragArgs = new DragEventArgs(new DataObject(), (int)DragDropKeyStates.None, 200,300,
DragDropEffects.Copy | DragDropEffects.Move,
DragDropEffects.None);
root.OnDragEnter(dragArgs, location, m_gm.VwGraphics, ptrans);
Assert.That(dragArgs.Effect, Is.EqualTo(DragDropEffects.None));
dragArgs = new DragEventArgs(dataObj, (int)DragDropKeyStates.ControlKey, 200,300,
DragDropEffects.Copy | DragDropEffects.Move,
DragDropEffects.None);
root.OnDragEnter(dragArgs, location, m_gm.VwGraphics, ptrans);
Assert.That(dragArgs.Effect, Is.EqualTo(DragDropEffects.Copy));
root.OnDragDrop(dragArgs, location, m_gm.VwGraphics, ptrans);
Assert.That(mock1.SimpleThree, Is.EqualTo("old new contents"));
}
public void DragCopyRtf()
{
var stylesheet = new MockStylesheet();
var styleFirst = stylesheet.AddStyle("first", false);
var styleSecond = stylesheet.AddStyle("second", false);
var propsTrue = new MockStyleProp<bool>() {Value = true, ValueIsSet = true};
var charInfo = new MockCharStyleInfo();
styleFirst.DefaultCharacterStyleInfo = charInfo;
charInfo.Bold = propsTrue;
// Todo: make styleSecond have pretty much everything else.
var charInfo2 = new MockCharStyleInfo();
styleSecond.DefaultCharacterStyleInfo = charInfo2;
charInfo2.FontColor = MakeColorProp(Color.Red);
charInfo2.BackColor = MakeColorProp(Color.Yellow);
charInfo2.UnderlineColor = MakeColorProp(Color.Green);
charInfo2.Italic = propsTrue;
charInfo2.FontName = new MockStyleProp<string>() {Value = "Arial", ValueIsSet = true};
var styles = new AssembledStyles(stylesheet);
var root = new RootBoxFdo(styles);
var mock1 = new MockData1(23, 23);
mock1.SimpleThree = "This is";
var mock2 = new MockData1(23, 23);
mock2.SimpleThree = " the day";
var mock3 = new MockData1(23, 23);
mock3.SimpleThree = " that the";
var engine = new FakeRenderEngine() { Ws = 23, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
var wsf = new MockWsf();
engine.WritingSystemFactory = wsf;
var wsEngine = wsf.MakeMockEngine(23, "en", engine);
factory.SetRenderer(23, engine);
root.Builder.Show(
Paragraph.Containing(
Display.Of(() => mock1.SimpleThree, 23).Style("first"),
Display.Of(() => mock2.SimpleThree, 23).Style("second"),
Display.Of(() => mock3.SimpleThree, 23).Style("first")
));
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
MockSite site = new MockSite();
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
SelectionBuilder.In(root).Offset("This ".Length).To.Offset("This is the day that".Length).Install();
int indent = FakeRenderEngine.SimulatedWidth("This ");
root.OnMouseDown(new MouseEventArgs(MouseButtons.Left, 1, indent + 5, 4, 0), Keys.None, m_gm.VwGraphics, ptrans);
root.OnMouseMove(new MouseEventArgs(MouseButtons.Left, 1, indent + 5, 4, 0), Keys.None, m_gm.VwGraphics, ptrans);
Assert.That(GetStringDropData(site), Is.EqualTo("is the day that"));
// The order of the font and colors in the color table is arbitrary. This happens to be what the code does now. For some reason
// Color.Green has green only 128.
// The order of items in the definition of a style is arbitrary.
// We're not doing anything yet for background color. \highlightN can specify background color for a character run,
// but it can't be part of a style definition.
Assert.That(GetRtfDropData(site), Is.EqualTo(
RangeSelection.RtfPrefix
+ @"{\fonttbl{\f0 MockFont;}{\f1 Arial;}}"
+ @"{\colortbl ;\red0\green0\blue0;\red255\green255\blue255;\red255\green0\blue0;\red255\green255\blue0;\red0\green128\blue0;}"
+ @"{\stylesheet{\*\cs1\b\additive first;\*\cs2\i\f1\cf3\ulc5\additive second;}}"
+ RangeSelection.RtfDataPrefix
+ @"{\*\cs1\b is}{\*\cs2\i\f1\cf3\ulc5\highlight4 the day}{\*\cs1\b that\par}"
+ @"}"));
// Todo: handle styles that depend on WS
// Todo: handle more than two runs
// Todo: handle runs where actual formatting differs from style-specified formatting
// Todo: handle multiple paragraphs
// Todo: handle paragraph styles
}
public void BasicDragMove()
{
var styles = new AssembledStyles();
var root = new RootBoxFdo(styles);
var mock1 = new MockData1(23, 23);
mock1.SimpleThree = "This is the day";
var engine = new FakeRenderEngine() { Ws = 23, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(23, engine);
root.Builder.Show(Display.Of(() => mock1.SimpleThree, 23));
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
MockSite site = new MockSite();
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
SelectionBuilder.In(root).Offset("This ".Length).To.Offset("This is ".Length).Install();
var dataObj = new DataObject(DataFormats.StringFormat, "is ");
int x = FakeRenderEngine.SimulatedWidth("This is the ") + 2;
var location = new Point(x, 8);
// A drag to where we can drop, allowing both copy and move, no keys held
var dragArgs = new DragEventArgs(dataObj, (int)DragDropKeyStates.None, 200, 300,
DragDropEffects.Copy | DragDropEffects.Move,
DragDropEffects.None);
root.OnDragEnter(dragArgs, location, m_gm.VwGraphics, ptrans);
Assert.That(dragArgs.Effect, Is.EqualTo(DragDropEffects.Move));
Assert.That(root.DragState, Is.EqualTo(WindowDragState.DraggingHere));
var qcdArgs = new QueryContinueDragEventArgs((int) DragDropKeyStates.None, false, DragAction.Drop);
root.OnQueryContinueDrag(qcdArgs);
Assert.That(root.DragState, Is.EqualTo(WindowDragState.InternalMove));
root.OnDragLeave();
Assert.That(root.DragState, Is.EqualTo(WindowDragState.InternalMove), "DragLeave should not clear InternalMove");
root.OnDragDrop(dragArgs, location, m_gm.VwGraphics, ptrans);
Assert.That(mock1.SimpleThree, Is.EqualTo("This the is day"));
Assert.That(root.DragState, Is.EqualTo(WindowDragState.None));
// Now let's drag the 'is' out to another window.
SelectionBuilder.In(root).Offset("This the ".Length).To.Offset("This the is ".Length).Install();
qcdArgs = new QueryContinueDragEventArgs((int)DragDropKeyStates.None, false, DragAction.Drop);
root.OnQueryContinueDrag(qcdArgs);
Assert.That(root.DragState, Is.EqualTo(WindowDragState.None),
"We should only set InternalMove if this window is the destination");
Assert.That(mock1.SimpleThree, Is.EqualTo("This the day"));
// Check that we can't drag inside our own selection.
SelectionBuilder.In(root).Offset("This ".Length).To.Offset("This the".Length).Install();
x = FakeRenderEngine.SimulatedWidth("This t") + 2;
location = new Point(x, 8);
dragArgs = new DragEventArgs(dataObj, (int)DragDropKeyStates.None, 200, 300,
DragDropEffects.Copy | DragDropEffects.Move,
DragDropEffects.None);
root.DragState = WindowDragState.InternalMove;
root.OnDragDrop(dragArgs, location, m_gm.VwGraphics, ptrans);
Assert.That(dragArgs.Effect, Is.EqualTo(DragDropEffects.None));
Assert.That(mock1.SimpleThree, Is.EqualTo("This the day"));
}
private static IRendererFactory SetupFakeRenderer(int ws)
{
var fakeRenderer = new FakeRenderEngine();
var fakeRendererFactory = new FakeRendererFactory();
fakeRendererFactory.SetRenderer(ws, fakeRenderer);
return fakeRendererFactory;
}
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 MlsDelete()
{
var styles = new AssembledStyles();
var root = new RootBoxFdo(styles.WithWs(23));
var mock1 = new MockData1(23, 23);
mock1.MlSimpleOne = new MultiAccessor(23, 23);
mock1.MlSimpleOne.set_String(23, TsStrFactoryClass.Create().MakeString("This is it", 23));
var engine = new FakeRenderEngine() { Ws = 23, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(23, engine);
root.Builder.Show(Display.Of(() => mock1.MlSimpleOne, 23));
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
MockSite site = new MockSite();
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
SelectionBuilder.In(root).Offset("This ".Length).To.Offset("This is ".Length).Install();
var sel = root.Selection as RangeSelection;
// This is currently the main test for SelectionBuilder.In(RootBox) and SelectionBuilder.To in TsStrings
// This verifies that it makes roughly the right range selection.
Assert.That(sel.Anchor.LogicalParaPosition, Is.EqualTo("This ".Length));
Assert.That(sel.DragEnd.LogicalParaPosition, Is.EqualTo("This is ".Length));
Assert.That(sel.CanDelete(), Is.True);
root.OnDelete();
ITsString i = mock1.MlSimpleOne.get_String(23);
Assert.That(mock1.MlSimpleOne.get_String(23).Text, Is.EqualTo("This it"));
var ip = root.Selection as InsertionPoint;
Assert.That(ip.LogicalParaPosition, Is.EqualTo("This ".Length));
// Enhance JohnT: if there is any reason to prefer associatePrevious to be true or false,
// clamp that and make it so.
// A fairly rudimentary check on invalidate, since we elsewhere check general string-edit ops.
Assert.That(site.RectsInvalidatedInRoot, Is.Not.Empty);
}
public void Backtracking()
{
var styles = new AssembledStyles();
var layoutInfo = MakeLayoutInfo();
var engine = new FakeRenderEngine() { Ws = 34, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(34, engine);
var engine2 = new FakeRenderEngine() { Ws = 35, SegmentHeight = 13 };
factory.SetRenderer(35, engine2);
// This first test doesn't strictly require backtracking; it is an example of a similar
// case where all the second client run fits, nothing of the following one fits, but
// there is a satisfactory break at the end of the last thing that fit.
var root = new RootBoxFdo(styles);
root.Builder.Show(Paragraph.Containing(Display.Of("this is ", 34),
Display.Of("some mixed ", 35), Display.Of("text", 34)));
int maxWidth = FakeRenderEngine.SimulatedWidth("this is some mixed t");
var layoutArgs = MakeLayoutInfo(maxWidth, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
var para = (ParaBox)root.FirstBox;
var secondChild = (StringBox) para.FirstBox.Next;
Assert.That(secondChild.Text, Is.EqualTo("some mixed "));
// True backtracking: the second client run fits entirely, but nothing of the following text.
// We must go back and find the break in the middle of that second run.
root = new RootBoxFdo(styles);
root.Builder.Show(Paragraph.Containing(Display.Of("this is ", 34),
Display.Of("some mixed", 35), Display.Of("text", 34)));
maxWidth = FakeRenderEngine.SimulatedWidth("this is some mixedte");
layoutArgs = MakeLayoutInfo(maxWidth, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
para = (ParaBox)root.FirstBox;
secondChild = (StringBox)para.FirstBox.Next;
Assert.That(secondChild.Text, Is.EqualTo("some "));
// Now a harder problem: the second client run fits entirely, but nothing of the following text,
// and there is no break point in the second client run at all.
// We must go back and find the break in the first client run.
root = new RootBoxFdo(styles);
root.Builder.Show(Paragraph.Containing(Display.Of("this is", 34),
Display.Of("some", 35), Display.Of("text", 34)));
maxWidth = FakeRenderEngine.SimulatedWidth("this issomete");
layoutArgs = MakeLayoutInfo(maxWidth, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
para = (ParaBox)root.FirstBox;
var firstChild = (StringBox)para.FirstBox;
Assert.That(firstChild.Text, Is.EqualTo("this "));
secondChild = (StringBox)para.FirstBox.Next;
Assert.That(secondChild.Text, Is.EqualTo("is"));
var thirdChild = (StringBox)secondChild.Next;
Assert.That(thirdChild.Text, Is.EqualTo("some"));
var fourthChild = (StringBox)thirdChild.Next;
Assert.That(fourthChild.Text, Is.EqualTo("text"));
Assert.That(secondChild.Top > firstChild.Top);
Assert.That(fourthChild.Top, Is.EqualTo(secondChild.Top));
// This time the third client run fits entirely, but nothing of the following text,
// and there is no break point in the second client run at all; but right
// before that third client run there is a non-text box.
// We must break following the non-text box.
root = new RootBoxFdo(styles);
root.Builder.Show(Paragraph.Containing(Display.Of("this is", 34), Display.Block(Color.Red, 6000, 2000),
Display.Of("some", 35), Display.Of("text", 34)));
maxWidth = FakeRenderEngine.SimulatedWidth("this issomete") + layoutArgs.MpToPixelsX(6000);
layoutArgs = MakeLayoutInfo(maxWidth, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
para = (ParaBox)root.FirstBox;
firstChild = (StringBox)para.FirstBox;
Assert.That(firstChild.Text, Is.EqualTo("this is"));
Assert.That(firstChild.Next, Is.InstanceOf(typeof(BlockBox)));
thirdChild = (StringBox)firstChild.Next.Next;
Assert.That(thirdChild.Text, Is.EqualTo("some"));
fourthChild = (StringBox)thirdChild.Next;
Assert.That(fourthChild.Text, Is.EqualTo("text"));
Assert.That(firstChild.Next.Top, Is.EqualTo(firstChild.Top), "The blockbox should be left on the first line");
Assert.That(thirdChild.Top, Is.GreaterThan(firstChild.Top), "The 'some' run should be on the second line");
Assert.That(fourthChild.Top, Is.EqualTo(thirdChild.Top), "all the rest of the text should fit on one more line");
// This time the thing that does not fit IS the block at the end.
// It should move to the next line, without taking any text with it.
root = new RootBoxFdo(styles);
root.Builder.Show(Paragraph.Containing(Display.Of("this is ", 34),
Display.Of("some text", 35), Display.Block(Color.Red, 6000, 2000)));
maxWidth = FakeRenderEngine.SimulatedWidth("this is some text") + layoutArgs.MpToPixelsX(2000);
layoutArgs = MakeLayoutInfo(maxWidth, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
para = (ParaBox)root.FirstBox;
firstChild = (StringBox)para.FirstBox;
Assert.That(firstChild.Text, Is.EqualTo("this is "));
secondChild = (StringBox)para.FirstBox.Next;
Assert.That(secondChild.Text, Is.EqualTo("some text"));
Assert.That(secondChild.Next, Is.InstanceOf(typeof(BlockBox)));
Assert.That(secondChild.Top, Is.EqualTo(firstChild.Top), "The two string boxes should fit on the first line");
Assert.That(secondChild.Next.Top, Is.GreaterThan(secondChild.Top), "The block should be on the second line");
// Todo JohnT: should also test that a break can occur after a non-string box.
// And many other cases (see Backtrack method).
}
public void RtlPara()
{
var styles = new AssembledStyles();
var layoutInfo = MakeLayoutInfo();
var root = new RootBoxFdo(styles);
var engine = new FakeRenderEngine() { Ws = 34, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
engine.RightToLeft = true;
factory.SetRenderer(34, engine);
var engine2 = new FakeRenderEngine() { Ws = 35, SegmentHeight = 13 };
engine2.RightToLeft = true;
factory.SetRenderer(35, engine);
root.Builder.Show(Paragraph.Containing(Display.Of("this is ", 34),
Display.Of("mixed ", 35), Display.Of("text", 34)).RightToLeft(true));
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
var para = (ParaBox) root.FirstBox;
int left1 = para.FirstBox.Left;
int left2 = para.FirstBox.Next.Left;
int left3 = para.FirstBox.Next.Next.Left;
Assert.That(left3, Is.LessThan(left2));
Assert.That(left2, Is.LessThan(left1));
}
public void ArrowKeys()
{
var engine = new FakeRenderEngine() { Ws = 34, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(34, engine);
var styles = new AssembledStyles().WithWs(34);
var root = new RootBoxFdo(styles);
var para1 = AddPara("This i~^s the~ day", styles, root);
var para2 = AddPara("", styles, root);
var para3 = AddPara(new string[] {"that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE + " the Lord", "has made"},
styles, root);
var para4 = AddPara(new string[] { "we will", "", "rejoice" }, styles, root);
int widthThisIsThe = FakeRenderEngine.SimulatedWidth("This is the");
var layoutArgs = MakeLayoutInfo(widthThisIsThe + 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
Assert.That(root.Height, Is.EqualTo(13 * 8), "A two-line and a one-line and a three-line and a two-line paragraph");
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;
// Simple left movement.
var ipThisIsTheDay = para1.SelectAtEnd();
var ipThisIsTheDa = ipThisIsTheDay.MoveByKey(new KeyEventArgs(Keys.Left));
VerifyIp(ipThisIsTheDa, para1, "This i~^s the~ da", false, "left from end");
var ipThisIsTheD = ipThisIsTheDa.MoveByKey(new KeyEventArgs(Keys.Left));
VerifyIp(ipThisIsTheD, para1, "This i~^s the~ d", false, "left from no special plae");
// Left from one run into an adjacent non-empty run
var ipThatTheLord2 = ((TextClientRun) para3.Source.ClientRuns[1]).SelectAt(para3, 0, false);
var ipThatTheLor = ipThatTheLord2.MoveByKey(new KeyEventArgs(Keys.Left));
VerifyIp(ipThatTheLor, para3, "that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE + " the Lor", false, "left from start run2");
// Left from one run into an adjacent empty run. Is this right or should we skip over it into
// another run so we actually move a character?
var ipStartOfRejoice = ((TextClientRun)para4.Source.ClientRuns[2]).SelectAt(para4, 0, false);
var ipEmptyPara4 = ipStartOfRejoice.MoveByKey(new KeyEventArgs(Keys.Left));
VerifyIp(ipEmptyPara4, para4, "we will", false, "left from start run into empty");
// Out of the empty run into the previous one.
var ipWeWil = ipEmptyPara4.MoveByKey(new KeyEventArgs(Keys.Left));
VerifyIp(ipWeWil, para4, "we wil", false, "left from empty run");
// back from one para into another.
var ipPara2 = para2.SelectAtStart();
var ipEndPara1 = ipPara2.MoveByKey(new KeyEventArgs(Keys.Left));
VerifyIp(ipEndPara1, para1, "This i~^s the~ day", true, "left from one para to another");
// back at the very start.
var ipStart = para1.SelectAtStart();
Assert.That(ipStart.MoveByKey(new KeyEventArgs(Keys.Left)), Is.Null);
// back after a surrogate pair should not stop in the middle.
var ipThatSurrogate = ((TextClientRun)para3.Source.ClientRuns[0]).SelectAt(para3,
("that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE).Length, false);
var ipThat = ipThatSurrogate.MoveByKey(new KeyEventArgs(Keys.Left));
VerifyIp(ipThat, para3, "that", false, "left over surrogate pair");
// Back to a place between diacritic and base should not stop.
var ipThisI_Diacritics = ((TextClientRun)para1.Source.ClientRuns[0]).SelectAt(para1,
"This i~^".Length, false);
var ipThisSpace = ipThisI_Diacritics.MoveByKey(new KeyEventArgs(Keys.Left));
VerifyIp(ipThisSpace, para1, "This ", false, "left over diacritics");
// We can use many of the same ones to check right movement.
var ipThisIsTheDa_r = ipThisIsTheD.MoveByKey(new KeyEventArgs(Keys.Right));
VerifyIp(ipThisIsTheDa_r, para1, "This i~^s the~ da", true, "simple right");
// Move right into an empty paragraph.
// Review JohnT: should this IP in an empty para associate forward or back?
var ipStartP2 = ipThisIsTheDay.MoveByKey(new KeyEventArgs(Keys.Right));
VerifyIp(ipStartP2, para2, "", false, "right into empty para");
// Should definitely associate with the character following, not the nonexistent preceding one.
var ipStartP3 = ipStartP2.MoveByKey(new KeyEventArgs(Keys.Right));
VerifyIp(ipStartP3, para3, "", false, "right to start of non-empty para");
var ipP3_t = ipStartP3.MoveByKey(new KeyEventArgs(Keys.Right));
VerifyIp(ipP3_t, para3, "t", true, "simple right");
var ipThatSurrogate2 = ipThat.MoveByKey(new KeyEventArgs(Keys.Right));
VerifyIp(ipThatSurrogate2, para3, "that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE, true, "right over surrogate pair");
var ipThatTheLord_left = ((TextClientRun)para3.Source.ClientRuns[0]).SelectAt(para3,
("that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE + " the Lord").Length, true);
var ipThatTheLord_space = ipThatTheLord_left.MoveByKey(new KeyEventArgs(Keys.Right));
VerifyIp(ipThatTheLord_space, para3, "that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE + " the Lord ", true, "right from end run1");
var ipEnd = para4.SelectAtEnd();
Assert.That(ipEnd.MoveByKey(new KeyEventArgs(Keys.Right)), Is.Null);
// Also can't make range by moving right from end.
Assert.That(ipEnd.MoveByKey(new KeyEventArgs(Keys.Right | Keys.Shift)), Is.Null);
var rangeThatSurrogate2 = ipThat.MoveByKey(new KeyEventArgs(Keys.Right | Keys.Shift));
VerifyRange(rangeThatSurrogate2, para3, "that", para3, "that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE, "shift-right over surrogate pair");
var rangeThatTha = ipThat.MoveByKey(new KeyEventArgs(Keys.Left | Keys.Shift));
VerifyRange(rangeThatTha, para3, "that", para3, "tha", "shift-left end before anchor");
// left from a range puts us at the start of the range
var ipThat2 = rangeThatSurrogate2.MoveByKey(new KeyEventArgs(Keys.Left));
VerifyIp(ipThat2, para3, "that", false, "left from range to IP");
// right from a range puts us at the end of the range
var ipThatSurrrogate2 = rangeThatSurrogate2.MoveByKey(new KeyEventArgs(Keys.Right));
VerifyIp(ipThatSurrrogate2, para3, "that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE, true, "right from range");
// shift-left from a 1-char range collapses it to an IP
var ipThat3 = rangeThatSurrogate2.MoveByKey(new KeyEventArgs(Keys.Left | Keys.Shift));
VerifyIp(ipThat3, para3, "that", false, "left over surrogate pair");
// shift-right from a range makes one with the same anchor but an extended end
var rangeThatSurrogateSpace = rangeThatSurrogate2.MoveByKey(new KeyEventArgs(Keys.Right | Keys.Shift));
VerifyRange(rangeThatSurrogateSpace, para3, "that", para3, "that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE + " ", "shift-right from range");
// shift-right from a range that can't grow returns null.
var ipWeWillRejoic = (InsertionPoint) ipEnd.MoveByKey(new KeyEventArgs(Keys.Left));
var range1AtEnd = new RangeSelection(ipWeWillRejoic, ipEnd);
Assert.That(range1AtEnd.MoveByKey(new KeyEventArgs(Keys.Right | Keys.Shift)), Is.Null);
// Home key.
var ipStartP2_2 = ipThat.MoveByKey(new KeyEventArgs(Keys.Home));
VerifyIp(ipStartP2_2, para3, "", false, "home in Para 3");
var ipStart_2 = ipThat.MoveByKey(new KeyEventArgs(Keys.Home | Keys.Control));
VerifyIp(ipStart_2, para1, "", false, "ctrl-home in Para 3");
// End key.
var ipEndP2 = ipThat.MoveByKey(new KeyEventArgs(Keys.End));
VerifyIp(ipEndP2, para3, "that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE + " the Lord" + "has made",
true, "end in Para 3");
var ipEnd_2 = ipThat.MoveByKey(new KeyEventArgs(Keys.End | Keys.Control));
VerifyIp(ipEnd_2, para4, "we will" + "rejoice", true, "ctrl-end in Para 3");
// Down key
var ipThisIsThe_R = ipStart.MoveByKey(new KeyEventArgs(Keys.Down));
VerifyIp(ipThisIsThe_R, para1, "This i~^s the~ ", false, "down from start line 1");
var ipTh = para1.SelectAt(2, true);
var ipThisIsTheDa2 = ipTh.MoveByKey(new KeyEventArgs(Keys.Down));
VerifyIp(ipThisIsTheDa2, para1, "This i~^s the~ da", false, "down from 2 chars into line 1");
var ipThisIdTh = para1.SelectAt("This i~^s th".Length, false);
var ipThisIsTheDay2 = ipThisIdTh.MoveByKey(new KeyEventArgs(Keys.Down));
VerifyIp(ipThisIsTheDay2, para1, "This i~^s the~ day", true, "down from near end line 1");
// Empty para: arbitrary which way it associates.
var ipPara2Down = ipThisIsTheDay2.MoveByKey(new KeyEventArgs(Keys.Down));
VerifyIp(ipPara2Down, para2, "", true, "down twice from near end line 1");
// Going on down, we should remember the starting X position and end up about that
// far into the next full-length line. The 'i' characters in the first line make it
// a bit iffy; might be closer to the start of the 'e' at the end of 'the'.
// The other complication is that our fake render engine is not smart about surrogate pairs,
// and treats the musical semibrevis as two ordinary characters.
// Omitting the diacritics in the first paragraph, our selection starts 10 characters in.
// The result string here is 9 characters, since with no narrow letters on this para,
// we end up closer to the left of the 'e'.
var ipThatTheSpaceDown = ipPara2Down.MoveByKey(new KeyEventArgs(Keys.Down));
VerifyIp(ipThatTheSpaceDown, para3, "that" + MUSICAL_SYMBOL_SEMIBREVIS_WHITE + " th", false,
"down 3x from near end line 1");
Assert.That(ipEnd.MoveByKey(new KeyEventArgs(Keys.Down)), Is.Null);
var ipPara2Up = ipThatTheSpaceDown.MoveByKey(new KeyEventArgs(Keys.Up));
VerifyIp(ipPara2Up, para2, "", true, "back up aligned with near end line 1");
var ipThisIsTheDayUp = ipPara2Up.MoveByKey(new KeyEventArgs(Keys.Up));
VerifyIp(ipThisIsTheDayUp, para1, "This i~^s the~ day", true, "up from para2 aligned near end line 1");
// It's going to be looking for a position right at the boundary...either assocPrev would be
// reasonable.
var ipThisIdTh2Up = ipThisIsTheDayUp.MoveByKey(new KeyEventArgs(Keys.Up));
VerifyIp(ipThisIdTh2Up, para1, "This i~^s th", false, "up from end para 1 aligned near end line 1");
//var ipPara2_2 = ipThisIsTheDay.MoveByKey(new KeyEventArgs(Keys.Down));
//VerifyIp(ipPara2_2, para2, "", true, "down from end para 1");
// Todo:
// HandleSpecialKey is called from OnKeyDown and should handle at least these:
//case Keys.PageUp:
//case Keys.PageDown:
//case Keys.End:
//case Keys.Home:
//case Keys.Left: // done
//case Keys.Up:
//case Keys.Right: // done
//case Keys.Down:
//case Keys.F7: // the only two function keys currently known to the Views code,
//case Keys.F8: // used for left and right arrow by string character amounts.
// Test Left: (done)
// - char to char in same line
// - skipping diacritics
// - skipping surrogate pairs
// - to another line in same paragraph
// - to previous (empty?) paragraph
// - at very start (nothing happens)
// - range collapses to start
// - anything special to test if there are multiple runs? e.g., at boundary
// - skip over embedded pictures
// - eventually drop into embedded boxes that contain text?
// Similarly right (done)
// Down:
// - same para, there is text below
// - same para, no text immediately below on same line (goes to end of previous line)
// - eventually: what should happen if logical and physical end of next line don't coincide?
// - down again to a longer line: should stay aligned with start position (what resets this??)
// etc for others.
}
private void BodyofUserPromptTest(MockData1 data1, Flow promptField, Func<string> reader)
{
var engine = new FakeRenderEngine() { Ws = 34, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(34, engine);
factory.SetRenderer(35, engine);
factory.SetRenderer(0, engine); // for literals
var styles = new AssembledStyles().WithWs(34);
var root = new RootBoxFdo(styles);
root.Builder.Show(
Paragraph.Containing(
Display.Of("lead in ", 34),
promptField,
Display.Of("trailing", 34)
)
);
var para = (ParaBox)root.FirstBox;
Assert.That(para.Source.RenderText, Is.EqualTo("lead in type here trailing"));
int width = FakeRenderEngine.SimulatedWidth("lead in type her"); // should make it take 2 lines and split prompt.
var layoutArgs = MakeLayoutInfo(width, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
MockSite site = new MockSite();
PaintTransform ptrans = new PaintTransform(2, 4, 96, 96, 0, 10, 96, 96);
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
// Click on "type here" produces an IP in the empty string.
int leadWidth = FakeRenderEngine.SimulatedWidth("lead in ");
var mouseArgs = new MouseEventArgs(MouseButtons.Left, 1, 2 + leadWidth + 3, 0, 0);
root.OnMouseDown(mouseArgs, Keys.None, m_gm.VwGraphics, ptrans);
var ip = root.Selection as InsertionPoint;
Assert.That(ip, Is.Not.Null);
Assert.That(ip.LogicalParaPosition, Is.EqualTo("lead in ".Length));
Assert.That(ip.StringPosition, Is.EqualTo(0));
// IP is drawn as range covering "type here"
ip.Draw(m_gm.VwGraphics, ptrans);
var first = (StringBox)para.FirstBox;
VerifyRangeSegmentDrawing(para, first, (FakeSegment)first.Segment, "lead in ".Length, "lead in type here ".Length,
-4, 4 - 10, 4 - 10 + 13);
var second = (StringBox)first.Next;
VerifyRangeSegmentDrawing(para, second, (FakeSegment)second.Segment, "lead in ".Length, "lead in type here ".Length,
-4 - 13, 4 - 10 + 13, 4 - 10 + 13 * 2);
// Check that we get a sensible answer for the selection's containing rectangle.
((FakeSegment) first.Segment).LeftPositionOfRangeResult = 17;
((FakeSegment)first.Segment).RightPositionOfRangeResult = 29;
((FakeSegment)second.Segment).LeftPositionOfRangeResult = 5;
((FakeSegment)second.Segment).RightPositionOfRangeResult = 13;
var rect = ip.GetSelectionLocation(m_gm.VwGraphics, ptrans);
Assert.That(rect.Top, Is.EqualTo(4 - 10));
Assert.That(rect.Bottom, Is.EqualTo(4 - 10 + 13*2));
Assert.That(rect.Left, Is.EqualTo(5));
Assert.That(rect.Right, Is.EqualTo(29));
VerifyRangeSegmentQuery(para, first, (FakeSegment)first.Segment, "lead in ".Length, "lead in type here ".Length,
-4, 4 - 10, 4 - 10 + 13);
VerifyRangeSegmentQuery(para, second, (FakeSegment)second.Segment, "lead in ".Length, "lead in type here ".Length,
-4 - 13, 4 - 10 + 13, 4 - 10 + 13 * 2);
Assert.That(second.IchMin, Is.EqualTo("lead in type ".Length));
// When the IP is drawn like this, it doesn't flash!
site.RectsInvalidatedInRoot.Clear();
site.RectsInvalidated.Clear();
root.FlashInsertionPoint(); // Call twice just in case somehow only some invalidates worked.
root.FlashInsertionPoint();
Assert.That(site.RectsInvalidated, Is.Empty);
Assert.That(site.RectsInvalidatedInRoot, Is.Empty);
// Typing something else makes "type here" go away and produces a normal IP after it.
ip.InsertText("x");
Assert.That(reader(), Is.EqualTo("x"));
Assert.That(para.Source.RenderText, Is.EqualTo("lead in xtrailing"));
ip = root.Selection as InsertionPoint;
Assert.That(ip, Is.Not.Null);
Assert.That(ip.ShouldFlash, Is.True);
Assert.That(ip.LogicalParaPosition, Is.EqualTo("lead in x".Length));
// Deleting back to empty string makes "type here" reappear.
ip.Backspace();
Assert.That(reader(), Is.EqualTo(""));
Assert.That(para.Source.RenderText, Is.EqualTo("lead in type here trailing"));
ip = root.Selection as InsertionPoint;
Assert.That(ip, Is.Not.Null);
Assert.That(ip.ShouldFlash, Is.False);
Assert.That(ip.LogicalParaPosition, Is.EqualTo("lead in ".Length));
Assert.That(ip.LastRenderParaPosition, Is.EqualTo("lead in type here ".Length));
second = (StringBox)para.FirstBox.Next;
Assert.That(second.IchMin, Is.EqualTo("lead in type ".Length));
// Click after "type here" produces an IP at the right place in the following string.
// We've arranged for the prompt to be split, so this is after the word 'here' on the second line.
int hereTWidth = FakeRenderEngine.SimulatedWidth("here t");
mouseArgs = new MouseEventArgs(MouseButtons.Left, 1, 2 + hereTWidth - 1, 4 - 10 + 13 + 2, 0);
root.OnMouseDown(mouseArgs, Keys.None, m_gm.VwGraphics, ptrans);
ip = root.Selection as InsertionPoint;
Assert.That(ip, Is.Not.Null);
Assert.That(ip.LogicalParaPosition, Is.EqualTo("lead in t".Length));
Assert.That(ip.AssociatePrevious, Is.True);
Assert.That(ip.StringPosition, Is.EqualTo(1));
Assert.That(ip.RenderParaPosition, Is.EqualTo("lead in type here t".Length));
// Also try a click in the second-line part of the prompt.
int herWidth = FakeRenderEngine.SimulatedWidth("her");
mouseArgs = new MouseEventArgs(MouseButtons.Left, 1, 2 + herWidth - 1, 4 - 10 + 13 + 2, 0);
root.OnMouseDown(mouseArgs, Keys.None, m_gm.VwGraphics, ptrans);
ip = root.Selection as InsertionPoint;
Assert.That(ip, Is.Not.Null);
Assert.That(ip.LogicalParaPosition, Is.EqualTo("lead in ".Length));
Assert.That(ip.StringPosition, Is.EqualTo(0));
Assert.That(ip.RenderParaPosition, Is.EqualTo("lead in ".Length));
Assert.That(ip.LastRenderParaPosition, Is.EqualTo("lead in type here ".Length));
}
public void InsertCharInEmptyLine()
{
string contents = "";
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 root = new RootBox(styles);
var block = new BlockBox(styles, Color.Red, 20000, 10000);
root.AddBox(block);
root.AddBox(para);
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
Assert.That(root.Height, Is.EqualTo(13 + block.Height));
Assert.That(para.Width, Is.EqualTo(FakeRenderEngine.SimulatedWidth(contents)));
Assert.That(root.Width, Is.EqualTo(block.Width));
int simulatedWidth = FakeRenderEngine.SimulatedWidth("x");
Assert.That(root.Width, Is.GreaterThan(para.Width + simulatedWidth));
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;
var oldRootWidth = root.Width;
var ip = root.SelectAtEnd();
ip.InsertText("x");
Assert.That(root.Height, Is.EqualTo(13 + block.Height));
Assert.That(root.Width, Is.EqualTo(oldRootWidth));
Assert.That(para.Width, Is.EqualTo(simulatedWidth));
var expectedInvalidate = new Rectangle(-RootBox.InvalidateMargin,
- RootBox.InvalidateMargin + block.Height,
simulatedWidth + RootBox.InvalidateMargin * 2,
13 + 2 * RootBox.InvalidateMargin);
Assert.That(site.RectsInvalidatedInRoot, Has.Member(expectedInvalidate));
}
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 ComplexRangeDrawing()
{
var string1 = "This is the day that the Lord has made.";
var string2 = "We will rejoice and be glad in it.";
var string3 = "Love the Lord your God with all your heart.";
var engine = new FakeRenderEngine() { Ws = 34, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(34, engine);
var runStyle = new AssembledStyles().WithWs(34);
var lineHeightMp = 20000;
var style = new AssembledStyles().WithLineHeight(lineHeightMp);
var root = new RootBox(style);
var para1 = MakePara(style, runStyle, string1);
root.AddBox(para1);
var div = new DivBox(style);
root.AddBox(div);
var para2 = MakePara(style, runStyle, string2);
div.AddBox(para2);
var para3 = MakePara(style, runStyle, string3);
div.AddBox(para3);
// This width makes each paragraph take three lines.
var layoutArgs = new LayoutInfo(2, 2, 96, 96, FakeRenderEngine.SimulatedWidth("This is the day "), m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
var ip1 = para1.SelectAt(1, false);
var ip2 = para1.SelectAt(3, true);
var range1 = new RangeSelection(ip1, ip2);
Assert.That(range1.EndBeforeAnchor, Is.False);
Assert.That(range1.Start, Is.EqualTo(ip1));
Assert.That(range1.End, Is.EqualTo(ip2));
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
var sbox1_1 = para1.FirstBox as StringBox;
range1.Draw(m_gm.VwGraphics, ptrans);
int topOffset = -2; // top of RcSrc for top of root box.
int topYd = 2; // destination coord corresponding to top of root box.
int leftXd = 2; // destination coord corresponding to left of root box.
int bottomOfFirstLine = topYd + engine.SegmentHeight;
int lineHeight = ptrans.MpToPixelsY(lineHeightMp);
int bottomOfFirstHilite = bottomOfFirstLine + (lineHeight - engine.SegmentHeight)/2;
VerifyRangeSegmentDrawing(para1, sbox1_1, range1, topOffset, topYd, bottomOfFirstHilite);
var sbox1_2 = sbox1_1.Next as StringBox;
int bottomOfSecondHilite = bottomOfFirstHilite + lineHeight;
VerifyRangeSegmentDrawing(para1, sbox1_2, range1, topOffset - lineHeight, bottomOfFirstHilite, bottomOfSecondHilite);
var sbox1_3 = sbox1_2.Next as StringBox;
int bottomOfThirddHilite = bottomOfSecondHilite + lineHeight - para1.Ascent;
VerifyRangeSegmentDrawing(para1, sbox1_3, range1, topOffset - lineHeight * 2, bottomOfSecondHilite, bottomOfThirddHilite);
// A two-line selection has much the same results.
var ip3 = para1.SelectAt(sbox1_2.IchMin + 2, true);
var range2 = new RangeSelection(ip1, ip3);
range2.Draw(m_gm.VwGraphics, ptrans);
VerifyRangeSegmentDrawing(para1, sbox1_1, range2, topOffset, topYd, bottomOfFirstHilite);
VerifyRangeSegmentDrawing(para1, sbox1_2, range2, topOffset - lineHeight, bottomOfFirstHilite, bottomOfSecondHilite);
VerifyRangeSegmentDrawing(para1, sbox1_3, range2, topOffset - lineHeight * 2, bottomOfSecondHilite, bottomOfThirddHilite);
// Try multi-para selection in paras in same div.
var ip2_3 = para2.SelectAt(3, false);
var ip3_4 = para3.SelectAt(4, true);
var range3 = new RangeSelection(ip2_3, ip3_4);
range3.Draw(m_gm.VwGraphics, ptrans);
var sbox2_1 = para2.FirstBox as StringBox;
int topOfPara2 = topYd + para1.Height;
int bottomOfFirstLineP2 = topOfPara2 + engine.SegmentHeight;
int bottomOfFirstHiliteP2 = bottomOfFirstLineP2 + (lineHeight - engine.SegmentHeight) / 2;
VerifyRangeSegmentDrawing(para2, sbox2_1, range3, topOffset - para1.Height, topOfPara2, bottomOfFirstHiliteP2);
var sbox2_2 = sbox2_1.Next as StringBox;
int bottomOfSecondHiliteP2 = bottomOfFirstHiliteP2 + lineHeight;
VerifyRangeSegmentDrawing(para2, sbox2_2, range3, topOffset - para1.Height - lineHeight,
bottomOfFirstHiliteP2, bottomOfSecondHiliteP2);
var sbox2_3 = sbox2_2.Next as StringBox;
int bottomOfThirddHiliteP2 = bottomOfSecondHiliteP2 + lineHeight - para2.Ascent;
VerifyRangeSegmentDrawing(para2, sbox2_3, range3, topOffset - para1.Height - lineHeight * 2,
bottomOfSecondHiliteP2, bottomOfThirddHiliteP2);
var sbox3_1 = para3.FirstBox as StringBox;
int topOfPara3 = topOfPara2 + para2.Height;
var bottomOfFirstLineP3 = topOfPara3 + engine.SegmentHeight;
var bottomOfFirstHiliteP3 = bottomOfFirstLineP3 + (lineHeight - engine.SegmentHeight) / 2;
VerifyRangeSegmentDrawing(para3, sbox3_1, range3, topOffset - para1.Height - para2.Height, topOfPara3, bottomOfFirstHiliteP3);
// Currently the other two segments of para3 will also be asked to draw it, but we've already checked how tops and bottoms
// are worked out, and we don't care if these beyond-the-end segments draw it or not. Better not to test, then we can
// optimize freely.
// Now try a range that is (backwards and) across a div boundary
var range4 = new RangeSelection(ip3_4, ip2);
Assert.That(range4.EndBeforeAnchor, Is.True);
Assert.That(range4.Start.SameLocation(ip2), Is.True);
Assert.That(range4.End.SameLocation(ip3_4), Is.True);
ClearSegmentDrawing(sbox1_3);
ClearSegmentDrawing(sbox2_1);
ClearSegmentDrawing(sbox3_1);
range4.Draw(m_gm.VwGraphics, ptrans);
// Several others should get drawn as well, but I think it's sufficient to verify tha something gets done correct in each para.
VerifyRangeSegmentDrawing(para1, sbox1_3, range4, topOffset - lineHeight * 2, bottomOfSecondHilite, bottomOfThirddHilite);
VerifyRangeSegmentDrawing(para2, sbox2_1, range4, topOffset - para1.Height, topOfPara2, bottomOfFirstHiliteP2);
VerifyRangeSegmentDrawing(para3, sbox3_1, range4, topOffset - para1.Height - para2.Height, topOfPara3, bottomOfFirstHiliteP3);
var range5 = new RangeSelection(ip2, ip3_4);
Assert.That(range5.EndBeforeAnchor, Is.False);
Assert.That(range5.Start.SameLocation(ip2), Is.True);
Assert.That(range5.End.SameLocation(ip3_4), Is.True);
// While we've got these selections, it's a good chance to check out GetSelectionLocation
// The first one is a simple rectangle in the first string box.
SetSelectionLocation(sbox1_1, 15, 20);
Assert.That(range1.GetSelectionLocation(m_gm.VwGraphics, ptrans), Is.EqualTo(
new Rectangle(15, topYd, 20 - 15, bottomOfFirstHilite - topYd)));
SetSelectionLocation(sbox1_2, 18, 25);
Assert.That(range2.GetSelectionLocation(m_gm.VwGraphics, ptrans), Is.EqualTo(
new Rectangle(15, topYd, 25 - 15, bottomOfSecondHilite - topYd)));
SetSelectionLocation(sbox3_1, 22, 27);
Assert.That(range4.GetSelectionLocation(m_gm.VwGraphics, ptrans), Is.EqualTo(
new Rectangle(leftXd, topYd, para2.Width, bottomOfFirstHiliteP3 - topYd)));
}
public void DiffWS()
{
var tsf = TsStrFactoryClass.Create();
var styles = new AssembledStyles();
var root = new RootBoxFdo(styles);
var mock1 = new MockData1(23, 23);
mock1.SimpleTwo = tsf.MakeString("newoldcontents", 23);
var bldr = mock1.SimpleTwo.GetBldr();
bldr.SetIntPropValues(3, 6, (int)FwTextPropType.ktptWs,
(int)FwTextPropVar.ktpvDefault, 24);
bldr.SetIntPropValues(6, 14, (int)FwTextPropType.ktptWs,
(int)FwTextPropVar.ktpvDefault, 25);
mock1.SimpleTwo = bldr.GetString();
var engine = new FakeRenderEngine() { Ws = 23, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(23, engine);
root.Builder.Show(Display.Of(() => mock1.SimpleTwo));
var layoutArgs = MakeLayoutInfo(Int32.MaxValue / 2, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
MockSite site = new MockSite();
site.m_transform = ptrans;
site.m_vwGraphics = m_gm.VwGraphics;
root.Site = site;
int x = FakeRenderEngine.SimulatedWidth("ne") + 2;
var location = new Point(x, 8);
EventArgs e = new EventArgs();
MouseEventArgs m = new MouseEventArgs(MouseButtons.Left, 1, location.X, location.Y, 0);
root.OnMouseDown(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnMouseClick(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnDoubleClick(e);
Assert.That(!root.Selection.IsInsertionPoint, "Should be ranged selection");
Assert.That((root.Selection as RangeSelection).SelectedText(), Is.EqualTo("new"));
x = FakeRenderEngine.SimulatedWidth("new") + 2;
location = new Point(x, 8);
m = new MouseEventArgs(MouseButtons.Left, 1, location.X, location.Y, 0);
root.OnMouseDown(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnMouseClick(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnDoubleClick(e);
Assert.That(!root.Selection.IsInsertionPoint, "Should be ranged selection");
Assert.That((root.Selection as RangeSelection).SelectedText(), Is.EqualTo("old"));
x = FakeRenderEngine.SimulatedWidth("newold") + 2;
location = new Point(x, 8);
m = new MouseEventArgs(MouseButtons.Left, 1, location.X, location.Y, 0);
root.OnMouseDown(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnMouseClick(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnDoubleClick(e);
Assert.That(!root.Selection.IsInsertionPoint, "Should be ranged selection");
Assert.That((root.Selection as RangeSelection).SelectedText(), Is.EqualTo("contents"));
x = FakeRenderEngine.SimulatedWidth("newold");
location = new Point(x, 8); // at the right edge of the d at the end of newold
m = new MouseEventArgs(MouseButtons.Left, 1, location.X, location.Y, 0);
root.OnMouseDown(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnMouseClick(m, Keys.None, site.m_vwGraphics, site.m_transform);
root.OnDoubleClick(e);
Assert.That(!root.Selection.IsInsertionPoint, "Should be ranged selection");
Assert.That((root.Selection as RangeSelection).SelectedText(), Is.EqualTo("old"));
}
public void BidiBacktracking()
{
var styles = new AssembledStyles();
var layoutInfo = MakeLayoutInfo();
var engine = new FakeRenderEngine() {Ws = 34, SegmentHeight = 13};
var factory = new FakeRendererFactory();
factory.SetRenderer(34, engine);
var engine2 = new FakeRenderEngine() {Ws = 35, SegmentHeight = 13};
factory.SetRenderer(35, engine2);
engine2.RightToLeft = true;
// This first test doesn't strictly require backtracking; it is an example of a similar
// case where all the second client run fits, nothing of the following one fits, but
// there is a satisfactory break at the end of the last thing that fit.
// But, the space at the 'end' of "some mixed" will need to be moved to the end so it can 'disappear',
// so it should become a separate segment.
// That is, we should get something like
// this is dexim emos_
// text
// Where the underline stands for the space after "some mixed" which is moved to the end of the line.
var root = new RootBoxFdo(styles);
root.Builder.Show(Paragraph.Containing(Display.Of("this is ", 34),
Display.Of("some mixed ", 35), Display.Of("text", 34)));
int maxWidth = FakeRenderEngine.SimulatedWidth("this is some mixed t");
var layoutArgs = MakeLayoutInfo(maxWidth, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
var para = (ParaBox) root.FirstBox;
var secondChild = (StringBox) para.FirstBox.Next;
Assert.That(secondChild.Text, Is.EqualTo("some mixed"));
var thirdChild = (StringBox)secondChild.Next;
Assert.That(thirdChild.Text, Is.EqualTo(" "));
Assert.That(thirdChild.Top, Is.EqualTo(para.FirstBox.Top));
// True backtracking: the second client run fits entirely, but nothing of the following text.
// We must go back and find the break in the middle of that second run.
root = new RootBoxFdo(styles);
root.Builder.Show(Paragraph.Containing(Display.Of("this is ", 34),
Display.Of("some mixed", 35), Display.Of("text", 34)));
maxWidth = FakeRenderEngine.SimulatedWidth("this is some mixedte");
layoutArgs = MakeLayoutInfo(maxWidth, m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
para = (ParaBox)root.FirstBox;
secondChild = (StringBox)para.FirstBox.Next;
Assert.That(secondChild.Text, Is.EqualTo("some"));
thirdChild = (StringBox)secondChild.Next;
Assert.That(thirdChild.Text, Is.EqualTo(" "));
Assert.That(thirdChild.Top, Is.EqualTo(para.FirstBox.Top));
var fourthChild = (StringBox)thirdChild.Next;
Assert.That(fourthChild.Text, Is.EqualTo("mixed"));
Assert.That(fourthChild.Top, Is.GreaterThan(thirdChild.Top));
var fifthChild = (StringBox)fourthChild.Next;
Assert.That(fifthChild.Text, Is.EqualTo("text"));
Assert.That(fifthChild.Top, Is.EqualTo(fourthChild.Top));
}
public void MouseEvents()
{
var string1 = "This is the day that the Lord has made.";
var engine = new FakeRenderEngine() { Ws = 34, SegmentHeight = 13 };
var factory = new FakeRendererFactory();
factory.SetRenderer(34, engine);
var runStyle = new AssembledStyles().WithWs(34);
var style = new AssembledStyles();
var root = new RootBox(style);
var para1 = MakePara(style, runStyle, string1);
root.AddBox(para1);
PaintTransform ptrans = new PaintTransform(2, 2, 96, 96, 0, 0, 96, 96);
var layoutArgs = new LayoutInfo(2, 2, 96, 96, FakeRenderEngine.SimulatedWidth("This is the day "), m_gm.VwGraphics, factory);
root.Layout(layoutArgs);
var mouseArgs = new MouseEventArgs(MouseButtons.Left, 1, 2, 5, 0);
root.OnMouseDown(mouseArgs, Keys.None, m_gm.VwGraphics, ptrans);
Assert.That(root.Selection, Is.TypeOf(typeof(InsertionPoint)));
Assert.That(((InsertionPoint)root.Selection).LogicalParaPosition, Is.EqualTo(0));
Assert.That(((InsertionPoint)root.Selection).AssociatePrevious, Is.False);
// In a different place, tests moving the selection and also getting AssociatePrevious true.
int widthThis = FakeRenderEngine.SimulatedWidth("This");
var mouseArgs2 = new MouseEventArgs(MouseButtons.Left, 1, 2 + widthThis - 1, 5, 0);
root.OnMouseDown(mouseArgs2, Keys.None, m_gm.VwGraphics, ptrans);
Assert.That(root.Selection, Is.TypeOf(typeof(InsertionPoint)));
Assert.That(((InsertionPoint)root.Selection).LogicalParaPosition, Is.EqualTo(4));
Assert.That(((InsertionPoint)root.Selection).AssociatePrevious, Is.True);
// A click in the same place should not make a new selection.
var sel = root.Selection;
root.OnMouseDown(mouseArgs2, Keys.None, m_gm.VwGraphics, ptrans); // no change
Assert.That(root.Selection, Is.EqualTo(sel));
// A shift-click close enough to the same place to be the same character position but difference AssocPrevious
// should make the appropriate new IP, not a range.
var mouseArgs2b = new MouseEventArgs(MouseButtons.Left, 1, 2 + widthThis + 1, 5, 0);
root.OnMouseDown(mouseArgs2b, Keys.Shift, m_gm.VwGraphics, ptrans);
Assert.That(root.Selection, Is.TypeOf(typeof(InsertionPoint)));
Assert.That(((InsertionPoint)root.Selection).LogicalParaPosition, Is.EqualTo(4));
Assert.That(((InsertionPoint)root.Selection).AssociatePrevious, Is.False);
// A shift-click should make a range.
root.OnMouseDown(mouseArgs, Keys.Shift, m_gm.VwGraphics, ptrans);
Assert.That(root.Selection, Is.TypeOf(typeof(RangeSelection)));
var anchor = ((RangeSelection) root.Selection).Anchor;
var drag = ((RangeSelection) root.Selection).DragEnd;
Assert.That(anchor.LogicalParaPosition, Is.EqualTo(4));
Assert.That(drag.LogicalParaPosition, Is.EqualTo(0));
// shift-click further right: should move the drag end
var mouseArgs3 = new MouseEventArgs(MouseButtons.Left, 1, 2 + 4, 5, 0);
root.OnMouseDown(mouseArgs3, Keys.Shift, m_gm.VwGraphics, ptrans);
Assert.That(root.Selection, Is.TypeOf(typeof(RangeSelection)));
anchor = ((RangeSelection)root.Selection).Anchor;
drag = ((RangeSelection)root.Selection).DragEnd;
Assert.That(anchor.LogicalParaPosition, Is.EqualTo(4));
Assert.That(drag.LogicalParaPosition, Is.EqualTo(1));
// mouse move, to a different position
root.OnMouseMove(mouseArgs, Keys.None, m_gm.VwGraphics, ptrans);
sel = root.Selection;
Assert.That(sel, Is.TypeOf(typeof(RangeSelection)));
anchor = ((RangeSelection)root.Selection).Anchor;
drag = ((RangeSelection)root.Selection).DragEnd;
Assert.That(anchor.LogicalParaPosition, Is.EqualTo(4));
Assert.That(drag.LogicalParaPosition, Is.EqualTo(0));
// mouse move to the same position: no new selection.
root.OnMouseMove(mouseArgs, Keys.None, m_gm.VwGraphics, ptrans); // no actual movement
Assert.That(root.Selection, Is.EqualTo(sel));
Assert.That(((RangeSelection)root.Selection).DragEnd, Is.EqualTo(drag));
// mouse move to an IP at the anchor should return us to an IP
root.OnMouseMove(mouseArgs2b, Keys.None, m_gm.VwGraphics, ptrans);
Assert.That(root.Selection, Is.TypeOf(typeof(InsertionPoint)));
Assert.That(((InsertionPoint)root.Selection).LogicalParaPosition, Is.EqualTo(4));
Assert.That(((InsertionPoint)root.Selection).AssociatePrevious, Is.False);
// mouse down on next line makes a selection there. Confirm proper passing of srcRect for vertical offset
var mouseArgs4 = new MouseEventArgs(MouseButtons.Left, 1, 2 + 4, 2 + 16, 0);
root.OnMouseDown(mouseArgs4, Keys.None, m_gm.VwGraphics, ptrans);
var paraBox = (ParaBox) root.FirstBox;
var seg2 = ((StringBox) paraBox.FirstBox.Next).Segment as FakeSegment;
Assert.That(seg2, Is.Not.Null);
Assert.That(seg2.LastPointToCharArgs, Is.Not.Null);
var topOfseg2 = paraBox.FirstBox.Height;
Assert.That(seg2.LastPointToCharArgs.RcSrc, Is.EqualTo(new Rect(-2, -2 - topOfseg2, 94, 94-topOfseg2)));
}