Private/Write-Menu.ps1
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function Write-MenuItem( [Parameter(Mandatory)][String] $MenuItem, [Switch]$IsFocused, [ConsoleColor]$FocusColor) { if ($IsFocused) { Write-Host $MenuItem -ForegroundColor $FocusColor } else { Write-Host $MenuItem } } function Write-Menu { param ( [Parameter(Mandatory)][Array] $MenuItems, [Parameter(Mandatory)][Int] $MenuPosition, [Parameter()][Array] $CurrentSelection, [Parameter(Mandatory)][ConsoleColor] $ItemFocusColor, [Parameter(Mandatory)][ScriptBlock] $MenuItemFormatter, [Switch] $MultiSelect ) $CurrentIndex = Get-CalculatedPageIndexNumber -MenuItems $MenuItems -MenuPosition $MenuPosition -TopIndex $MenuItemCount = Get-CalculatedPageIndexNumber -MenuItems $MenuItems -MenuPosition $MenuPosition -ItemCount $ConsoleWidth = [Console]::BufferWidth $MenuHeight = 0 for ($i = 0; $i -le $MenuItemCount; $i++) { if ($null -eq $MenuItems[$CurrentIndex]) { Continue } $RenderMenuItem = $MenuItems[$CurrentIndex] $MenuItemStr = if (Test-MenuSeparator $RenderMenuItem) { $RenderMenuItem } else { & $MenuItemFormatter $RenderMenuItem } if (!$MenuItemStr) { Throw "'MenuItemFormatter' returned an empty string for item #$CurrentIndex" } $IsItemSelected = $CurrentSelection -contains $CurrentIndex $IsItemFocused = $CurrentIndex -eq $MenuPosition $DisplayText = Format-MenuItem -MenuItem $MenuItemStr -MultiSelect:$MultiSelect -IsItemSelected:$IsItemSelected -IsItemFocused:$IsItemFocused Write-MenuItem -MenuItem $DisplayText -IsFocused:$IsItemFocused -FocusColor $ItemFocusColor $MenuHeight += [Math]::Max([Math]::Ceiling($DisplayText.Length / $ConsoleWidth), 1) $CurrentIndex++; } $MenuHeight } |