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Fix tree rendering

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Fixes some tree rendering problems where lines were not properly drawn
at some levels during some circumstances.

* Change the API back to only allow one root.
* Now uses a stack based approach to rendering instead of recursion.
* Removes the need for measuring the whole tree in advance.
  Leave this up to each child to render.
This commit is contained in:
Patrik Svensson
2021-01-09 18:34:07 +01:00
committed by Patrik Svensson
parent 0e0f4b4220
commit 8261b25e5c
34 changed files with 697 additions and 446 deletions
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1
examples/Console/Prompt/Program.cs
View File

@ -1,4 +1,3 @@
using System.Collections.Generic;
using Spectre.Console;
namespace Cursor

66
examples/Console/Trees/Program.cs
View File

@ -6,42 +6,40 @@ namespace TableExample
{
public static void Main()
{
var tree = new Tree();
tree.AddNode(new FigletText("Dec 2020"));
tree.AddNode("[link]Click to go to summary[/]");
// Add the calendar nodes
tree.AddNode("[blue]Calendar[/]",
node => node.AddNode(
new Calendar(2020, 12)
.AddCalendarEvent(2020, 12, 12)
.HideHeader()));
// Add video games node
tree.AddNode("[red]Played video games[/]",
node => node.AddNode(
new Table()
.RoundedBorder()
.AddColumn("Title")
.AddColumn("Console")
.AddRow("The Witcher 3", "XBox One X")
.AddRow("Cyberpunk 2077", "PC")
.AddRow("Animal Crossing", "Nintendo Switch")));
// Add the fruit nodes
tree.AddNode("[green]Fruits[/]", fruits =>
fruits.AddNode("Eaten",
node => node.AddNode(
new BarChart().Width(40)
.AddItem("Apple", 12, Color.Red)
.AddItem("Kiwi", 3, Color.Green)
.AddItem("Banana", 21, Color.Yellow))));
AnsiConsole.WriteLine();
AnsiConsole.MarkupLine("[yellow]Monthly summary[/]");
// Render the tree
var tree = BuildTree();
AnsiConsole.Render(tree);
}
private static Tree BuildTree()
{
// Create the tree
var tree = new Tree("Root")
.Style(Style.Parse("red"))
.Guide(TreeGuide.BoldLine);
// Add some nodes
var foo = tree.AddNode("[yellow]Foo[/]");
var table = foo.AddNode(new Table()
.RoundedBorder()
.AddColumn("First")
.AddColumn("Second")
.AddRow("1", "2")
.AddRow("3", "4")
.AddRow("5", "6"));
table.AddNode("[blue]Baz[/]");
foo.AddNode("Qux");
var bar = tree.AddNode("[yellow]Bar[/]");
bar.AddNode(new Calendar(2020, 12)
.AddCalendarEvent(2020, 12, 12)
.HideHeader());
// Return the tree
return tree;
}
}
}