ui/ast-tree-view.psm1
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using module .\progress-bar.psm1 using module ..\models\ast-model.psm1 using module ..\utils\node-drawer.psm1 using module ..\utils\text-tag-parser.psm1 using namespace System.Management.Automation.Language Class AstTreeView { [object]$mainForm # can't use type [MainForm] due to circular dependency [System.Windows.Forms.Control]$container [System.Windows.Forms.TreeView]$instance [System.Windows.Forms.TreeView]$dummyInstance [AstModel]$astModel [NodeDrawer]$nodeDrawer [TextTagParser]$tagParser [bool]$inUpdate [bool]$isUpdatedFromViewBox [hashtable]$astColorsMap AstTreeView([object]$mainForm, [System.Windows.Forms.Control]$container, [hashtable]$astColorsMap) { $this.mainForm = $mainForm $this.container = $container $this.astColorsMap = $astColorsMap $this.tagParser = [TextTagParser]::new("black", "white") $this.nodeDrawer = [NodeDrawer]::new() $this.instance = $this.Init() } [System.Windows.Forms.TreeView]Init() { $label = [System.Windows.Forms.Label]::new() $label.Name = "lblAstTreeView" $label.Text = "AST tree" $label.Top = 20 $label.Left = 10 $label.Height = 20 $this.container.Controls.Add($label) $treeView = [System.Windows.Forms.TreeView]::new() $treeView.Name = "treeAstView" $treeView.Top = $label.Bottom $treeView.Left = 10 $treeView.Height = $this.container.ClientSize.Height - $label.Bottom $treeView.Width = $this.container.ClientSize.Width - 12 $treeView.Anchor = "Top, Bottom, Left, Right" $treeView.Font = New-Object System.Drawing.Font("Courier New", 12) $treeView.HideSelection = $false $treeView.DrawMode = [System.Windows.Forms.TreeViewDrawMode]::OwnerDrawText #$treeView.ShowNodeToolTips = $true $this.container.Controls.Add($treeView) $treeView.Tag = $this $treeView.Add_AfterSelect({ param($s, $e) $self = $s.Tag $node = $e.Node $keepCaretPos = $false if ($self.isUpdatedFromViewBox) { $keepCaretPos = $true } $self.mainForm.onAstNodeSelected($node.Tag.Ast, $node.Tag.Index, $keepCaretPos) }) $treeView.Add_DrawNode({ param($s, $e) if ($s.Tag.inUpdate) { return } $s.Tag.nodeDrawer.drawNode($s, $e, $e.Node.Tag.NameParts) }) $dummyTreeView = [System.Windows.Forms.TreeView]::new() $dummyTreeView.Name = "dummyTreeView" $dummyTreeView.Top = $treeView.Top $dummyTreeView.Left = $treeView.Left $dummyTreeView.Height = $treeView.Height $dummyTreeView.Width = $treeView.Width $dummyTreeView.Anchor = $treeView.Anchor $dummyTreeView.Font = $treeView.Font $dummyTreeView.Visible = $false $this.container.Controls.Add($dummyTreeView) $this.dummyInstance = $dummyTreeView return $treeView } [void]setAstModel([AstModel]$astModel, [ProgressBar]$pb) { $this.freezeUpdates($true) $this.astModel = $astModel $this.FillTreeView($astModel, $pb) #$this.instance.ExpandAll() $this.ExpandNodesToLevel($this.instance.Nodes, 2) if ($this.instance.Nodes.Count -gt 0) { $this.instance.SelectedNode = $this.instance.Nodes[0] $this.instance.Nodes[0].EnsureVisible() } $this.freezeUpdates($false) } [void]FillTreeView([AstModel]$astModel, [ProgressBar]$pb) { $tree = $this.instance $tree.Nodes.Clear() $idx = @{val = -1 } function Recurse($astMap, $ast, $parentNode, $idx, $pb) { $idx.val = $idx.val + 1 $pb.Update($idx.val) $astName = $ast.GetType().Name $color = "Black" if ($this.astColorsMap.ContainsKey($astName)) { $color = $this.astColorsMap[$astName] } $codeBlockName = "" if ($ast.PSObject.Properties["Name"]) { $codeBlockName = ": $($ast.Name)" } $node = [System.Windows.Forms.TreeNode]::new() $node.Text = "$astName$codeBlockName [$($ast.Extent.StartOffset) - $($ast.Extent.EndOffset)]" #$node.ToolTipText = $node.Text $taggedText = "<color:$color><b>$astName</b></color><color:#4F4497>$codeBlockName</color> [$($ast.Extent.StartOffset) - $($ast.Extent.EndOffset)]" $node.Tag = @{ Ast = $ast Index = $idx.val NameParts = $this.tagParser.Parse($taggedText) } $parentNode.Nodes.Add($node) if (-not $astMap.Contains($ast)) { return } foreach ($child in $astMap[$ast]) { Recurse $astMap $child $node $idx $pb } } Recurse $astModel.astMap $astModel.ast $tree $idx $pb } [void]selectAst([Ast]$ast) { if (-not $ast) { return } $node = $this.findNodeByAst($this.instance.Nodes, $ast) if (-not $node) { return } $this.instance.SelectedNode = $null $this.instance.SelectedNode = $node } [void]freezeUpdates([bool]$val) { if ($val) { $this.dummyInstance.Visible = $true $this.instance.Visible = $false $this.instance.DrawMode = [System.Windows.Forms.TreeViewDrawMode]::Normal $this.inUpdate = $true $this.instance.BeginUpdate() } else { $this.instance.EndUpdate() $this.instance.DrawMode = [System.Windows.Forms.TreeViewDrawMode]::OwnerDrawText $this.inUpdate = $false $this.instance.Visible = $true $this.dummyInstance.Visible = $false } } [System.Windows.Forms.TreeNode] findNodeByAst([System.Windows.Forms.TreeNodeCollection] $nodes, [Ast] $ast) { foreach ($node in $nodes) { if ($null -ne $node.Tag -and $node.Tag.Ast -eq $ast) { return $node } if ($node.Nodes.Count -gt 0) { $found = $this.findNodeByAst($node.Nodes, $ast) if ($null -ne $found) { return $found } } } return $null } [void]ExpandNodesToLevel( [System.Windows.Forms.TreeNodeCollection]$Nodes, [int]$Level ) { if ($Level -le 0 -or -not $Nodes) { return } foreach ($node in $Nodes) { $node.Expand() if ($node.Nodes.Count -gt 0 -and $Level -gt 1) { $this.ExpandNodesToLevel($node.Nodes, ($Level - 1)) } } } [void]selectNodeByCharIndex([int]$charIndex) { if (-not $this.astModel -or $charIndex -lt 0) { return } $this.isUpdatedFromViewBox = $true $ast = $this.astModel.FindAstByOffset($charIndex) if (-not $ast) { return } $this.selectAst($ast) $this.isUpdatedFromViewBox = $false } } |