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Moved styling logic into new class TreeStyle

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This commit is contained in:
tznind
2020-12-16 13:48:07 +00:00
parent 3d1b40cd08
commit 33cf23c0d7
2 changed files with 169 additions and 78 deletions
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47
UICatalog/Scenarios/TreeViewFileSystem.cs
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@@ -2,7 +2,6 @@ using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Terminal.Gui;
namespace UICatalog.Scenarios {
@@ -37,7 +36,10 @@ namespace UICatalog.Scenarios {
}),
new MenuBarItem ("_View", new MenuItem [] {
new MenuItem ("_ShowLines", "", () => ShowLines()),
new MenuItem ("_ShowExpandableSymbol", "", () => ShowExpandableSymbol()),
new MenuItem ("_PlusMinusSymbols", "", () => SetExpandableSymbols('+','-')),
new MenuItem ("_ArrowSymbols", "", () => SetExpandableSymbols('>','v')),
new MenuItem ("_NoSymbols", "", () => SetExpandableSymbols(null,null)),
new MenuItem ("_ColoredSymbols", "", () => ShowColoredExpandableSymbols()),
}),
});
Top.Add (menu);
@@ -110,22 +112,49 @@ namespace UICatalog.Scenarios {
private void ShowLines ()
{
treeViewNodes.ShowBranchLines = !treeViewNodes.ShowBranchLines;
treeViewNodes.Style.ShowBranchLines = !treeViewNodes.Style.ShowBranchLines;
treeViewNodes.SetNeedsDisplay();
treeViewFiles.ShowBranchLines = !treeViewFiles.ShowBranchLines;
treeViewFiles.Style.ShowBranchLines = !treeViewFiles.Style.ShowBranchLines;
treeViewFiles.SetNeedsDisplay();
}
private void ShowExpandableSymbol ()
private void SetExpandableSymbols(Rune? expand, Rune? collapse)
{
treeViewNodes.ShowExpandableSymbol = !treeViewNodes.ShowExpandableSymbol;
treeViewNodes.Style.ExpandableSymbol = expand;
treeViewNodes.Style.CollapseableSymbol = collapse;
treeViewNodes.SetNeedsDisplay();
treeViewFiles.ShowExpandableSymbol = !treeViewFiles.ShowExpandableSymbol;
treeViewFiles.Style.ExpandableSymbol = expand;
treeViewFiles.Style.CollapseableSymbol = collapse;
treeViewFiles.SetNeedsDisplay();
}
private void ShowColoredExpandableSymbols()
{
ShowColoredExpandableSymbols(treeViewNodes);
ShowColoredExpandableSymbols(treeViewFiles);
}
private void ShowColoredExpandableSymbols (ITreeView treeView)
{
// TODO: how to know what the normal window background is this member is private
//Win.ColorScheme.Normal.Background
// Toggle Green expand symbols
if(treeView.Style.ExpandableSymbolColor.HasValue)
treeView.Style.ExpandableSymbolColor = null; //clear it
else
treeView.Style.ExpandableSymbolColor = new Terminal.Gui.Attribute(Color.Green,Color.Blue);
// Toggle Red collapse symbols
if(treeView.Style.CollapseableSymbolColor.HasValue)
treeView.Style.CollapseableSymbolColor = null; //clear it
else
treeView.Style.CollapseableSymbolColor = new Terminal.Gui.Attribute(Color.Red,Color.Blue);
treeView.SetNeedsDisplay();
}
private ITreeNode CreateSimpleRoot ()
{
return new TreeNode("Root"){