mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-28 00:38:00 +01:00
385 lines
11 KiB
C#
385 lines
11 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using Terminal.Gui.Graphs;
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using Xunit;
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using Xunit.Abstractions;
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namespace Terminal.Gui.CoreTests {
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public class LineCanvasTests {
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readonly ITestOutputHelper output;
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public LineCanvasTests (ITestOutputHelper output)
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{
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this.output = output;
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}
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[Fact, AutoInitShutdown]
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public void TestLineCanvas_Dot ()
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{
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var v = GetCanvas (out var canvas);
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canvas.AddLine (new Point (0, 0), 0, Orientation.Horizontal, BorderStyle.Single);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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.";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[InlineData (BorderStyle.Single)]
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[InlineData (BorderStyle.Rounded)]
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[Theory, AutoInitShutdown]
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public void TestLineCanvas_Horizontal (BorderStyle style)
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{
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var v = GetCanvas (out var canvas);
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canvas.AddLine (new Point (0, 0), 1, Orientation.Horizontal, style);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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──";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[Fact, AutoInitShutdown]
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public void TestLineCanvas_Horizontal_Double ()
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{
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var v = GetCanvas (out var canvas);
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canvas.AddLine (new Point (0, 0), 1, Orientation.Horizontal, BorderStyle.Double);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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══";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[InlineData (BorderStyle.Single)]
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[InlineData (BorderStyle.Rounded)]
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[Theory, AutoInitShutdown]
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public void TestLineCanvas_Vertical (BorderStyle style)
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{
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var v = GetCanvas (out var canvas);
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canvas.AddLine (new Point (0, 0), 1, Orientation.Vertical, style);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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│
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│";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[Fact, AutoInitShutdown]
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public void TestLineCanvas_Vertical_Double ()
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{
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var v = GetCanvas (out var canvas);
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canvas.AddLine (new Point (0, 0), 1, Orientation.Vertical, BorderStyle.Double);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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║
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║";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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/// <summary>
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/// This test demonstrates that corners are only drawn when lines overlap.
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/// Not when they terminate adjacent to one another.
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/// </summary>
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[Fact, AutoInitShutdown]
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public void TestLineCanvas_Corner_NoOverlap ()
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{
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var v = GetCanvas (out var canvas);
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canvas.AddLine (new Point (0, 0), 1, Orientation.Horizontal, BorderStyle.Single);
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canvas.AddLine (new Point (0, 1), 1, Orientation.Vertical, BorderStyle.Single);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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──
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│
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│";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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/// <summary>
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/// This test demonstrates how to correctly trigger a corner. By
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/// overlapping the lines in the same cell
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/// </summary>
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[Fact, AutoInitShutdown]
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public void TestLineCanvas_Corner_Correct ()
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{
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var v = GetCanvas (out var canvas);
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canvas.AddLine (new Point (0, 0), 1, Orientation.Horizontal, BorderStyle.Single);
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canvas.AddLine (new Point (0, 0), 2, Orientation.Vertical, BorderStyle.Single);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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┌─
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│
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│";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[Fact, AutoInitShutdown]
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public void TestLineCanvas_Window ()
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{
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var v = GetCanvas (out var canvas);
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// outer box
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canvas.AddLine (new Point (0, 0), 9, Orientation.Horizontal, BorderStyle.Single);
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canvas.AddLine (new Point (9, 0), 4, Orientation.Vertical, BorderStyle.Single);
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canvas.AddLine (new Point (9, 4), -9, Orientation.Horizontal, BorderStyle.Single);
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canvas.AddLine (new Point (0, 4), -4, Orientation.Vertical, BorderStyle.Single);
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canvas.AddLine (new Point (5, 0), 4, Orientation.Vertical, BorderStyle.Single);
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canvas.AddLine (new Point (0, 2), 9, Orientation.Horizontal, BorderStyle.Single);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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┌────┬───┐
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│ │ │
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├────┼───┤
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│ │ │
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└────┴───┘";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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/// <summary>
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/// Demonstrates when <see cref="BorderStyle.Rounded"/> corners are used. Notice how
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/// not all lines declare rounded. If there are 1+ lines intersecting and a corner is
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/// to be used then if any of them are rounded a rounded corner is used.
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/// </summary>
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[Fact, AutoInitShutdown]
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public void TestLineCanvas_Window_Rounded ()
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{
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var v = GetCanvas (out var canvas);
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// outer box
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canvas.AddLine (new Point (0, 0), 9, Orientation.Horizontal, BorderStyle.Rounded);
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// BorderStyle.Single is ignored because corner overlaps with the above line which is Rounded
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// this results in a rounded corner being used.
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canvas.AddLine (new Point (9, 0), 4, Orientation.Vertical, BorderStyle.Single);
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canvas.AddLine (new Point (9, 4), -9, Orientation.Horizontal, BorderStyle.Rounded);
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canvas.AddLine (new Point (0, 4), -4, Orientation.Vertical, BorderStyle.Single);
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// These lines say rounded but they will result in the T sections which are never rounded.
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canvas.AddLine (new Point (5, 0), 4, Orientation.Vertical, BorderStyle.Rounded);
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canvas.AddLine (new Point (0, 2), 9, Orientation.Horizontal, BorderStyle.Rounded);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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╭────┬───╮
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│ │ │
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├────┼───┤
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│ │ │
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╰────┴───╯";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[Fact, AutoInitShutdown]
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public void TestLineCanvas_Window_Double ()
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{
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var v = GetCanvas (out var canvas);
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// outer box
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canvas.AddLine (new Point (0, 0), 9, Orientation.Horizontal, BorderStyle.Double);
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canvas.AddLine (new Point (9, 0), 4, Orientation.Vertical, BorderStyle.Double);
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canvas.AddLine (new Point (9, 4), -9, Orientation.Horizontal, BorderStyle.Double);
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canvas.AddLine (new Point (0, 4), -4, Orientation.Vertical, BorderStyle.Double);
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canvas.AddLine (new Point (5, 0), 4, Orientation.Vertical, BorderStyle.Double);
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canvas.AddLine (new Point (0, 2), 9, Orientation.Horizontal, BorderStyle.Double);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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╔════╦═══╗
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║ ║ ║
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╠════╬═══╣
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║ ║ ║
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╚════╩═══╝";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[Theory, AutoInitShutdown]
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[InlineData (BorderStyle.Single)]
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[InlineData (BorderStyle.Rounded)]
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public void TestLineCanvas_Window_DoubleTop_SingleSides (BorderStyle thinStyle)
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{
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var v = GetCanvas (out var canvas);
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// outer box
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canvas.AddLine (new Point (0, 0), 9, Orientation.Horizontal, BorderStyle.Double);
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canvas.AddLine (new Point (9, 0), 4, Orientation.Vertical, thinStyle);
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canvas.AddLine (new Point (9, 4), -9, Orientation.Horizontal, BorderStyle.Double);
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canvas.AddLine (new Point (0, 4), -4, Orientation.Vertical, thinStyle);
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canvas.AddLine (new Point (5, 0), 4, Orientation.Vertical, thinStyle);
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canvas.AddLine (new Point (0, 2), 9, Orientation.Horizontal, BorderStyle.Double);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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╒════╤═══╕
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│ │ │
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╞════╪═══╡
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│ │ │
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╘════╧═══╛
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";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[Theory, AutoInitShutdown]
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[InlineData (BorderStyle.Single)]
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[InlineData (BorderStyle.Rounded)]
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public void TestLineCanvas_Window_SingleTop_DoubleSides (BorderStyle thinStyle)
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{
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var v = GetCanvas (out var canvas);
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// outer box
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canvas.AddLine (new Point (0, 0), 9, Orientation.Horizontal, thinStyle);
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canvas.AddLine (new Point (9, 0), 4, Orientation.Vertical, BorderStyle.Double);
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canvas.AddLine (new Point (9, 4), -9, Orientation.Horizontal, thinStyle);
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canvas.AddLine (new Point (0, 4), -4, Orientation.Vertical, BorderStyle.Double);
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canvas.AddLine (new Point (5, 0), 4, Orientation.Vertical, BorderStyle.Double);
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canvas.AddLine (new Point (0, 2), 9, Orientation.Horizontal, thinStyle);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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╓────╥───╖
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║ ║ ║
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╟────╫───╢
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║ ║ ║
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╙────╨───╜
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";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[Fact, AutoInitShutdown]
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public void TestLineCanvas_PositiveLocation ()
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{
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var x = 1;
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var y = 1;
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var v = GetCanvas (out var canvas, x, y);
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// outer box
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canvas.AddLine (new Point (x, y), 9, Orientation.Horizontal, BorderStyle.Single);
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canvas.AddLine (new Point (x + 9, y + 0), 4, Orientation.Vertical, BorderStyle.Single);
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canvas.AddLine (new Point (x + 9, y + 4), -9, Orientation.Horizontal, BorderStyle.Single);
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canvas.AddLine (new Point (x + 0, y + 4), -4, Orientation.Vertical, BorderStyle.Single);
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canvas.AddLine (new Point (x + 5, y + 0), 4, Orientation.Vertical, BorderStyle.Single);
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canvas.AddLine (new Point (x + 0, y + 2), 9, Orientation.Horizontal, BorderStyle.Single);
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v.Redraw (v.Bounds);
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string looksLike =
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@"
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┌────┬───┐
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│ │ │
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├────┼───┤
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│ │ │
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└────┴───┘";
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TestHelpers.AssertDriverContentsAre (looksLike, output);
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}
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[Theory, AutoInitShutdown]
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[InlineData (0, 0, @"
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═══
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══
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═══")]
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[InlineData (1, 0, @"
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══
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═
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══")]
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[InlineData (2, 0, @"
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═
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═")]
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[InlineData (0, 1, @"
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══
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═══")]
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[InlineData (0, 2, @"
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═══")]
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public void TestLineCanvasRenderOffset_NoOffset (int xOffset, int yOffset, string expect)
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{
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var canvas = new LineCanvas ();
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canvas.AddLine (new Point (0, 0), 2, Orientation.Horizontal, BorderStyle.Double);
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canvas.AddLine (new Point (0, 1), 1, Orientation.Horizontal, BorderStyle.Double);
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canvas.AddLine (new Point (0, 2), 2, Orientation.Horizontal, BorderStyle.Double);
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var bmp = canvas.GenerateImage (new Rect (xOffset, yOffset, 3, 3));
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var actual = BmpToString (bmp);
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Assert.Equal (expect.TrimStart (), actual);
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}
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private string BmpToString (System.Rune? [,] bmp)
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{
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var sb = new StringBuilder ();
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for (int y = 0; y < bmp.GetLength (1); y++) {
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for (int x = 0; x < bmp.GetLength (0); x++) {
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sb.Append (bmp [y, x]);
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}
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sb.AppendLine ();
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}
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return sb.ToString ().TrimEnd ();
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}
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/// <summary>
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/// Creates a new <see cref="View"/> into which a <see cref="LineCanvas"/> is rendered
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/// at <see cref="View.DrawContentComplete"/> time.
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/// </summary>
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/// <param name="canvas">The <see cref="LineCanvas"/> you can draw into.</param>
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/// <param name="offsetX">How far to offset the <see cref="View.Bounds"/> in X</param>
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/// <param name="offsetX">How far to offset the <see cref="View.Bounds"/> in Y</param>
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/// <returns></returns>
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private View GetCanvas (out LineCanvas canvas, int offsetX = 0, int offsetY = 0)
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{
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var v = new View {
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Width = 10,
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Height = 5,
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Bounds = new Rect (offsetX, offsetY, 10, 5)
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};
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var canvasCopy = canvas = new LineCanvas ();
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v.DrawContentComplete += (r) => canvasCopy.Draw (v, v.Bounds);
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return v;
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}
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}
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}
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