public void LegendNormalUsage_WithBorder()
{
var gv = GraphViewTests.GetGraph();
var legend = new LegendAnnotation(new Rect(2, 0, 5, 3));
legend.AddEntry(new GraphCellToRender('A'), "Ant");
legend.AddEntry(new GraphCellToRender('B'), "Bat");
gv.Annotations.Add(legend);
gv.Redraw(gv.Bounds);
var expected =
@"
│┌───┐
┤│AAn│
┤└───┘
0┼┬┬┬┬┬┬┬┬
0 5";
GraphViewTests.AssertDriverContentsAre(expected);
}
public void TestTextAnnotation_GraphUnits()
{
var gv = GraphViewTests.GetGraph();
gv.Annotations.Add(new TextAnnotation()
{
Text = "hey!",
GraphPosition = new PointF(2, 2)
});
gv.Redraw(gv.Bounds);
var expected =
@"
│
┤ hey!
┤
0┼┬┬┬┬┬┬┬┬
0 5";
GraphViewTests.AssertDriverContentsAre(expected);
// user scrolls up one unit of graph space
gv.ScrollOffset = new PointF(0, 1f);
gv.Redraw(gv.Bounds);
// we expect the text annotation to go down one line since
// the scroll offset means that that point of graph space is
// lower down in the view. Note the 1 on the axis too, our viewport
// (excluding margins) now shows y of 1 to 4 (previously 0 to 5)
expected =
@"
│
┤
┤ hey!
1┼┬┬┬┬┬┬┬┬
0 5";
GraphViewTests.AssertDriverContentsAre(expected);
}
public void TestTextAnnotation_ScreenUnits()
{
var gv = GraphViewTests.GetGraph();
gv.Annotations.Add(new TextAnnotation()
{
Text = "hey!",
ScreenPosition = new Point(3, 1)
});
gv.Redraw(gv.Bounds);
var expected =
@"
│
┤ hey!
┤
0┼┬┬┬┬┬┬┬┬
0 5";
GraphViewTests.AssertDriverContentsAre(expected);
// user scrolls up one unit of graph space
gv.ScrollOffset = new PointF(0, 1f);
gv.Redraw(gv.Bounds);
// we expect no change in the location of the annotation (only the axis label changes)
// this is because screen units are constant and do not change as the viewport into
// graph space scrolls to different areas of the graph
expected =
@"
│
┤ hey!
┤
1┼┬┬┬┬┬┬┬┬
0 5";
GraphViewTests.AssertDriverContentsAre(expected);
}
public void TestTextAnnotation_Offscreen()
{
var gv = GraphViewTests.GetGraph();
gv.Annotations.Add(new TextAnnotation()
{
Text = "hey there partner hows it going boy its great",
GraphPosition = new PointF(9, 2)
});
gv.Redraw(gv.Bounds);
// Text is off the screen (graph x axis runs to 8 not 9)
var expected =
@"
│
┤
┤
0┼┬┬┬┬┬┬┬┬
0 5";
GraphViewTests.AssertDriverContentsAre(expected);
}
public void LegendNormalUsage_WithoutBorder()
{
var gv = GraphViewTests.GetGraph();
var legend = new LegendAnnotation(new Rect(2, 0, 5, 3));
legend.AddEntry(new GraphCellToRender('A'), "Ant");
legend.AddEntry(new GraphCellToRender('B'), "?"); // this will exercise pad
legend.AddEntry(new GraphCellToRender('C'), "Cat");
legend.AddEntry(new GraphCellToRender('H'), "Hattter"); // not enough space for this oen
legend.Border = false;
gv.Annotations.Add(legend);
gv.Redraw(gv.Bounds);
var expected =
@"
│AAnt
┤B?
┤CCat
0┼┬┬┬┬┬┬┬┬
0 5";
GraphViewTests.AssertDriverContentsAre(expected);
}
