Renderers/AnsiRenderer.ps1
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function ConvertTo-TerminalTableRowLine { param( [Parameter(Mandatory)][AllowEmptyCollection()][AllowEmptyString()][string[]]$Values, [Parameter(Mandatory)][AllowEmptyCollection()][int[]]$Widths, [ValidateRange(0, [int]::MaxValue)][int]$StartColumn = 0 ) $cells = [System.Collections.Generic.List[string]]::new() $cellStartColumn = $StartColumn + 2 for ($columnIndex = 0; $columnIndex -lt $Values.Count; $columnIndex++) { $cells.Add((Pad-TerminalText -Text $Values[$columnIndex] -Width $Widths[$columnIndex] -StartColumn $cellStartColumn)) $cellStartColumn += $Widths[$columnIndex] + 3 } return '| ' + ($cells -join ' | ') + ' |' } function ConvertTo-TerminalTableCellLines { param( [AllowNull()][string]$Text, [ValidateRange(0, [int]::MaxValue)][int]$StartColumn = 0 ) $lines = [System.Collections.Generic.List[string]]::new() foreach ($logicalLine in (Split-TerminalLogicalRows -Text $Text)) { $lines.Add((Expand-TerminalTabs -Text $logicalLine -StartColumn $StartColumn)) } return ,$lines.ToArray() } function ConvertTo-TerminalTablePhysicalLines { param( [Parameter(Mandatory)][AllowEmptyCollection()][string[][]]$Cells, [Parameter(Mandatory)][AllowEmptyCollection()][int[]]$Widths, [ValidateRange(0, [int]::MaxValue)][int]$StartColumn = 0 ) $lineCount = 1 foreach ($cell in $Cells) { $lineCount = [Math]::Max($lineCount, $cell.Count) } $lines = [System.Collections.Generic.List[string]]::new() for ($lineIndex = 0; $lineIndex -lt $lineCount; $lineIndex++) { $values = [string[]]::new($Cells.Count) for ($columnIndex = 0; $columnIndex -lt $Cells.Count; $columnIndex++) { $values[$columnIndex] = if ($lineIndex -lt $Cells[$columnIndex].Count) { $Cells[$columnIndex][$lineIndex] } else { '' } } $lines.Add((ConvertTo-TerminalTableRowLine -Values $values -Widths $Widths -StartColumn $StartColumn)) } return ,$lines.ToArray() } function ConvertTo-TableLines { param( [object]$Content, [ValidateRange(0, [int]::MaxValue)][int]$StartColumn = 0 ) $rows = @() if ($Content -is [System.Collections.IDictionary]) { $rows = [object[]]@($Content) } elseif ($Content -is [System.Collections.IEnumerable] -and $Content -isnot [string]) { $rows = @($Content) } else { return ,@([string]$Content) } if (-not $rows.Count) { return ,@('') } $shape = Get-TerminalExportTableShape -Data $rows $headers = [string[]]@($shape.Columns) $widths = [int[]]::new($headers.Count) $normalizedHeaders = [string[][]]::new($headers.Count) $normalizedRows = [System.Collections.Generic.List[string[][]]]::new() foreach ($row in $rows) { $normalizedRows.Add([string[][]]::new($headers.Count)) } $cellStartColumn = $StartColumn + 2 for ($columnIndex = 0; $columnIndex -lt $headers.Count; $columnIndex++) { $header = $headers[$columnIndex] $normalizedHeaders[$columnIndex] = ConvertTo-TerminalTableCellLines -Text $header -StartColumn $cellStartColumn $widths[$columnIndex] = 3 foreach ($headerLine in $normalizedHeaders[$columnIndex]) { $widths[$columnIndex] = [Math]::Max( $widths[$columnIndex], (Measure-TextWidth -Text $headerLine -StartColumn $cellStartColumn) ) } for ($rowIndex = 0; $rowIndex -lt $rows.Count; $rowIndex++) { $row = $rows[$rowIndex] $value = [string](Get-TerminalSemanticProperty -InputObject $row -Name $header) $normalizedRows[$rowIndex][$columnIndex] = ConvertTo-TerminalTableCellLines -Text $value -StartColumn $cellStartColumn foreach ($valueLine in $normalizedRows[$rowIndex][$columnIndex]) { $widths[$columnIndex] = [Math]::Max( $widths[$columnIndex], (Measure-TextWidth -Text $valueLine -StartColumn $cellStartColumn) ) } } $cellStartColumn += $widths[$columnIndex] + 3 } $output = [System.Collections.Generic.List[string]]::new() foreach ($headerLine in (ConvertTo-TerminalTablePhysicalLines -Cells $normalizedHeaders -Widths $widths -StartColumn $StartColumn)) { $output.Add($headerLine) } $output.Add('|-' + (($widths | ForEach-Object { ''.PadLeft($_, '-') }) -join '-|-') + '-|') foreach ($normalizedRow in $normalizedRows) { foreach ($rowLine in (ConvertTo-TerminalTablePhysicalLines -Cells $normalizedRow -Widths $widths -StartColumn $StartColumn)) { $output.Add($rowLine) } } return ,$output.ToArray() } function ConvertTo-ChartLines { param([object]$Content, [hashtable]$Properties, [TerminalSlides.Schema.V1.ThemeDefinition]$Theme, [int]$Width) $items = @($Content) if (-not $items.Count) { return ,@('No chart data') } $chartType = ($Properties.ChartType ?? 'HorizontalBar') $palette = @($Theme.ChartPalette) if (-not $palette.Count) { $palette = @($Theme.Primary, $Theme.Accent, $Theme.Foreground) } $output = [System.Collections.Generic.List[object]]::new() if ($Properties.Title) { $output.Add((New-TerminalStyledLine -Text ([string]$Properties.Title) -Foreground $Theme.Heading -Bold)) } switch ($chartType) { 'Gauge' { $value = [double]($items[0].Value) $filled = [Math]::Round(($Width - 10) * ($value / 100)) $filled = [Math]::Max(0, [Math]::Min($Width - 10, $filled)) $output.Add((New-TerminalStyledLine -Text "[$(('█' * $filled) + ('░' * ([Math]::Max(0, ($Width - 10 - $filled)))))] $value%" -Foreground $palette[0])) } 'Sparkline' { $values = @($items | ForEach-Object { [double]$_.Value }) $blocks = '▁▂▃▄▅▆▇█'.ToCharArray() $min = ($values | Measure-Object -Minimum).Minimum $max = ($values | Measure-Object -Maximum).Maximum if ($max -eq $min) { $max = $min + 1 } $spark = -join ($values | ForEach-Object { $idx = [int][Math]::Round((($_ - $min) / ($max - $min)) * ($blocks.Length - 1)) $blocks[$idx] }) $output.Add((New-TerminalStyledLine -Text $spark -Foreground $palette[0])) } 'Bar' { $max = [double](($items | ForEach-Object { $_.Value } | Measure-Object -Maximum).Maximum) if ($max -le 0) { $max = 1 } for ($index = 0; $index -lt $items.Count; $index++) { $item = $items[$index] $count = [Math]::Max(0, [Math]::Round((([double]$item.Value) / $max) * ([Math]::Max(1, $Width - 12)))) $label = Pad-TerminalText -Text ([string]$item.Label) -Width 10 $color = $palette[$index % $palette.Count] $output.Add((New-TerminalStyledLine -Text "$label $('█' * $count)" -Foreground $color)) } } 'Line' { $values = @($items | ForEach-Object { [double]$_.Value }) $sparkline = ConvertTo-ChartLines -Content $Content -Properties @{ ChartType='Sparkline' } -Theme $Theme -Width $Width foreach ($line in $sparkline) { $output.Add($line) } $output.Add(($items | ForEach-Object { "{0}: {1}" -f $_.Label, $_.Value }) -join ' ') } default { $max = [double](($items | ForEach-Object { $_.Value } | Measure-Object -Maximum).Maximum) if ($max -le 0) { $max = 1 } for ($index = 0; $index -lt $items.Count; $index++) { $item = $items[$index] $label = [string]$item.Label $count = [Math]::Max(0, [Math]::Round((([double]$item.Value) / $max) * ([Math]::Max(1, $Width - 20)))) $label = Pad-TerminalText -Text $label -Width 12 $color = $palette[$index % $palette.Count] $output.Add((New-TerminalStyledLine -Text "$label $('█' * $count) $($item.Value)" -Foreground $color)) } } } return ,$output.ToArray() } function ConvertTo-DiagramLines { param([hashtable]$Content) $nodes = @($Content.Nodes) $edges = @($Content.Edges) if (-not $nodes.Count) { return ,@('Empty diagram') } $lines = [System.Collections.Generic.List[string]]::new() for ($i = 0; $i -lt $nodes.Count; $i++) { $node = $nodes[$i] $box = "[$($node.Id)] $($node.Label)" $lines.Add($box) foreach ($edge in $edges | Where-Object { $_.From -eq $node.Id }) { $target = $nodes | Where-Object Id -eq $edge.To | Select-Object -First 1 if ($target) { $label = if ($edge.Label) { " ($($edge.Label))" } else { '' } $lines.Add(" └─> [$($target.Id)] $($target.Label)$label") } } } return ,$lines.ToArray() } function ConvertTo-ElementLines { param( [TerminalSlides.Schema.V1.SlideElement]$Element, [TerminalSlides.Schema.V1.ThemeDefinition]$Theme, [int]$Width, [int]$Height = 0, [TerminalSlides.Schema.V1.TerminalCapability]$Capability, [ValidateRange(0, [int]::MaxValue)][int]$StartColumn = 0 ) $payload = Get-TerminalElementPayload -Element $Element switch ($payload.Kind) { 'Title' { $title = if ($Theme.HeadingStyle -eq 'banner') { $payload.Text.ToUpperInvariant() } else { $payload.Text } return ,(Format-WordWrap -Text $title -Width $Width -StartColumn $StartColumn) } 'Subtitle' { return ,(Format-WordWrap -Text $payload.Text -Width $Width -StartColumn $StartColumn) } 'Text' { return ,(Format-WordWrap -Text $payload.Text -Width $Width -OverflowBehavior $Element.OverflowBehavior -StartColumn $StartColumn) } 'Bullet' { $prefix = "$($Theme.BulletSymbol) " $prefixWidth = Measure-TextWidth -Text $prefix $wrapped = Format-WordWrap -Text $payload.Text -Width ([Math]::Max(1, $Width - $prefixWidth)) -StartColumn ($StartColumn + $prefixWidth) $result = [System.Collections.Generic.List[string]]::new() for ($i = 0; $i -lt $wrapped.Count; $i++) { if ($i -eq 0) { $result.Add($prefix + $wrapped[$i]) } else { $result.Add((' ' * $prefixWidth) + $wrapped[$i]) } } return ,$result.ToArray() } 'Code' { $lines = [System.Collections.Generic.List[TerminalStyledLine]]::new() foreach ($highlightedLine in (Get-SyntaxHighlight -Code $payload.Code -Language $payload.Language -Theme $Theme)) { foreach ($wrappedLine in (Split-TerminalStyledLineByCellWidth -Line $highlightedLine -Width $Width -StartColumn $StartColumn)) { $lines.Add($wrappedLine) } } return ,$lines.ToArray() } 'Table' { return ,(ConvertTo-TableLines -Content $payload.Rows -StartColumn $StartColumn) } 'Chart' { $properties = @{ ChartType = $payload.ChartType; Title = $payload.Title } return ,(ConvertTo-ChartLines -Content $payload.Rows -Properties $properties -Theme $Theme -Width $Width) } 'Diagram' { return ,(ConvertTo-DiagramLines -Content @{ Nodes=$payload.Nodes; Edges=$payload.Edges }) } 'Image' { $imageLines = ConvertTo-TerminalImageLines -Path $payload.Path -Width $Width -Height $Height -SourceDirectory $payload.SourceDirectory -Capability $Capability if ($null -ne $imageLines -and $imageLines.Count -gt 0) { return ,$imageLines } return ,@("Image: $($payload.Path)", $payload.AltText) } 'Quote' { $lines = [System.Collections.Generic.List[string]]::new() foreach ($line in (Format-WordWrap -Text ('“' + $payload.Text + '”') -Width $Width -StartColumn $StartColumn)) { $lines.Add($line) } if ($payload.Attribution) { $lines.Add("— $($payload.Attribution)") } return ,$lines.ToArray() } 'Box' { $boxChars = Get-BoxCharacters -Style $Theme.BoxDrawingStyle $innerStartColumn = $StartColumn + 2 $inner = Format-WordWrap -Text $payload.Text -Width ([Math]::Max(1, $Width - 4)) -StartColumn $innerStartColumn $border = $boxChars.Tl + ($boxChars.H * ([Math]::Max(1, $Width - 2))) + $boxChars.Tr $bottom = $boxChars.Bl + ($boxChars.H * ([Math]::Max(1, $Width - 2))) + $boxChars.Br $lines = [System.Collections.Generic.List[string]]::new() $lines.Add($border) foreach ($line in $inner) { $lines.Add($boxChars.V + ' ' + (Pad-TerminalText -Text $line -Width ([Math]::Max(1, $Width - 4)) -StartColumn $innerStartColumn) + ' ' + $boxChars.V) } $lines.Add($bottom) return ,$lines.ToArray() } } } function Write-LinesToFrame { param( [FrameBuffer]$FrameBuffer, [object[]]$Lines, [hashtable]$Region, [TerminalSlides.Schema.V1.ThemeDefinition]$Theme, [TerminalSlides.Schema.V1.SlideElement]$Element, [int]$StartY ) $elementKind = (Get-TerminalElementPayload -Element $Element).Kind $fg = if ($Element.ForegroundColor) { $Element.ForegroundColor } elseif ($elementKind -eq 'Code' -and $Theme.CodeForeground) { $Theme.CodeForeground } else { $Theme.Foreground } $bg = if ($Element.BackgroundColor) { $Element.BackgroundColor } elseif ($elementKind -eq 'Code' -and $Theme.CodeBackground) { $Theme.CodeBackground } else { $null } $y = $StartY $usableWidth = [Math]::Max(1, $Region.Width - ($Element.Padding * 2)) $contentStartColumn = $Region.X + $Element.Padding $preparedLines = ConvertTo-TerminalPreparedLines -Lines $Lines -StartColumn $contentStartColumn -MaxWidth $usableWidth -Alignment $Element.Alignment foreach ($preparedLine in $preparedLines) { if ($y -ge ($Region.Y + $Region.Height)) { break } $x = $preparedLine.StartColumn $baseBold = ($elementKind -eq 'Title' -and $Theme.HeadingStyle -ne 'plain') $baseItalic = ($elementKind -eq 'Subtitle') $col = $x foreach ($run in $preparedLine.Runs) { $runForeground = if ($run.Foreground) { $run.Foreground } else { $fg } $runBackground = if ($run.Background) { $run.Background } else { $bg } Set-FrameText -FrameBuffer $FrameBuffer -X $col -Y $y -Text $run.Text -Foreground $runForeground -Background $runBackground -Bold:($baseBold -or $run.Bold) -Italic:($baseItalic -or $run.Italic) -Underline:$run.Underline $col += $run.Width } $y++ } return $y } function Get-SlideRenderDimensions { param([TerminalSlides.Schema.V1.TerminalPresentation]$Presentation, [TerminalSlides.Schema.V1.TerminalCapability]$Capability) $width = if ($Presentation.Width -gt 0) { $Presentation.Width } elseif ($Capability.Width -gt 0) { $Capability.Width } else { 80 } $height = if ($Presentation.Height -gt 0) { $Presentation.Height } elseif ($Capability.Height -gt 0) { $Capability.Height } else { 24 } return Resolve-TerminalViewport -Width $width -Height $height } function Get-RenderedSlideFrame { [CmdletBinding()] param( [Parameter(Mandatory)][TerminalSlides.Schema.V1.TerminalPresentation]$Presentation, [Parameter(Mandatory)][int]$SlideIndex, [int]$RevealStep = 0, [switch]$ShowNotes, [ValidateSet('Slide','Overview','Help','Blank')][string]$DisplayMode = 'Slide', [timespan]$Elapsed = [timespan]::Zero, [switch]$ShowTimer, [TerminalSlides.Schema.V1.TerminalCapability]$Capability = $script:Capabilities ) $theme = Resolve-TerminalPresentationTheme -Presentation $Presentation $dims = Get-SlideRenderDimensions -Presentation $Presentation -Capability $Capability $frame = [FrameBuffer]::new($dims.Width, $dims.Height) Fill-FrameRegion -FrameBuffer $frame -Background $theme.Background -Foreground $theme.Foreground if ($DisplayMode -eq 'Blank') { return $frame } if ($DisplayMode -eq 'Help') { $help = @( 'TerminalSlides Help', '', 'Right / Space / N Next reveal or slide', 'PageDown Next slide', 'Left / Backspace / P Previous reveal or slide', 'PageUp Previous slide', 'Home / End First / last slide', 'S Toggle notes', 'O Toggle overview', 'B Blank screen', 'T Toggle timer', 'H / ? Toggle help', 'Q / Esc Quit' ) $region = @{ X = 2; Y = 2; Width = $dims.Width - 4; Height = $dims.Height - 4 } Draw-FrameBox -FrameBuffer $frame -X $region.X -Y $region.Y -Width $region.Width -Height $region.Height -Foreground $theme.Border -Background $theme.Background -Style $theme.BoxDrawingStyle Write-LinesToFrame -FrameBuffer $frame -Lines $help -Region @{ X = 4; Y = 3; Width = $dims.Width - 8; Height = $dims.Height - 6 } -Theme $theme -Element (New-InternalSlideElement -Kind Text -Payload ([TerminalSlides.Schema.V1.TextPayload]::new('')) -ForegroundColor $theme.Foreground) -StartY 3 | Out-Null return $frame } if ($DisplayMode -eq 'Overview') { Set-FrameText -FrameBuffer $frame -X 2 -Y 1 -Text $Presentation.Title -Foreground $theme.Heading -Background $theme.Background -Bold $y = 3 for ($i = 0; $i -lt $Presentation.Slides.Count -and $y -lt $dims.Height - 2; $i++) { $prefix = if ($i -eq $SlideIndex) { '>' } else { ' ' } Set-FrameText -FrameBuffer $frame -X 2 -Y $y -Text ("$prefix [{0}] {1}" -f ($i + 1), $Presentation.Slides[$i].Title) -Foreground $theme.Foreground -Background $theme.Background $y++ } return $frame } $plan = Get-TerminalSlideLayoutPlan -Presentation $Presentation -SlideIndex $SlideIndex -RevealStep $RevealStep -Capability $Capability $slide = $plan.Slide if ($slide.Background) { Fill-FrameRegion -FrameBuffer $frame -Background $slide.Background -Foreground $theme.Foreground } foreach ($placement in $plan.Placements) { if ($placement.Border) { $border = $placement.BorderRegion $borderFg = if ($placement.Element.ForegroundColor) { $placement.Element.ForegroundColor } else { $theme.Border } $borderBg = if ($placement.Element.BackgroundColor) { $placement.Element.BackgroundColor } else { $theme.Background } Draw-FrameBox -FrameBuffer $frame -X $border.X -Y $border.Y -Width $border.Width -Height $border.Height -Foreground $borderFg -Background $borderBg -Style $placement.Element.BorderStyle } Write-LinesToFrame -FrameBuffer $frame -Lines $placement.Lines -Region $placement.Region -Theme $theme -Element $placement.Element -StartY $placement.StartY | Out-Null } $progressWidth = [Math]::Max(10, $dims.Width - 24) $ratio = ($SlideIndex + 1) / $Presentation.Slides.Count $filled = [Math]::Round($progressWidth * $ratio) $progressBar = ('█' * $filled).PadRight($progressWidth, '░') $status = "Slide {0} of {1} {2}" -f ($SlideIndex + 1), $Presentation.Slides.Count, $progressBar $status = $status.Substring(0, [Math]::Min($status.Length, $dims.Width - 2)) Set-FrameText -FrameBuffer $frame -X 1 -Y ($dims.Height - 2) -Text $status -Foreground $theme.Muted -Background $theme.Background if ($ShowTimer) { $timerText = $Elapsed.ToString('hh\:mm\:ss') Set-FrameText -FrameBuffer $frame -X ([Math]::Max(1, $dims.Width - $timerText.Length - 2)) -Y ($dims.Height - 1) -Text $timerText -Foreground $theme.Accent -Background $theme.Background } if ($ShowNotes -and $slide.Notes) { $notes = Format-WordWrap -Text ("Notes: $($slide.Notes)") -Width ([Math]::Max(10, $dims.Width - 4)) $notesHeight = [Math]::Min(4, $notes.Count + 2) $notesY = [Math]::Max(0, $dims.Height - $notesHeight - 1) Draw-FrameBox -FrameBuffer $frame -X 1 -Y $notesY -Width ($dims.Width - 2) -Height $notesHeight -Foreground $theme.Border -Background $theme.Background -Style $theme.BoxDrawingStyle Write-LinesToFrame -FrameBuffer $frame -Lines $notes -Region @{ X = 2; Y = $notesY + 1; Width = $dims.Width - 4; Height = $notesHeight - 2 } -Theme $theme -Element (New-InternalSlideElement -Kind Text -Payload ([TerminalSlides.Schema.V1.TextPayload]::new('')) -ForegroundColor $theme.Foreground) -StartY ($notesY + 1) | Out-Null } return $frame } function Render-TerminalPresentationToString { [CmdletBinding()] param( [Parameter(Mandatory)][TerminalSlides.Schema.V1.TerminalPresentation]$Presentation, [int]$SlideIndex = 0, [int]$RevealStep = 0, [switch]$PlainText, [switch]$ShowNotes, [ValidateSet('Slide','Overview','Help','Blank')][string]$DisplayMode = 'Slide', [timespan]$Elapsed = [timespan]::Zero, [switch]$ShowTimer, [TerminalSlides.Schema.V1.TerminalCapability]$Capability = $script:Capabilities ) $frame = Get-RenderedSlideFrame -Presentation $Presentation -SlideIndex $SlideIndex -RevealStep $RevealStep -ShowNotes:$ShowNotes -DisplayMode $DisplayMode -Elapsed $Elapsed -ShowTimer:$ShowTimer -Capability $Capability if ($PlainText) { $rows = [System.Collections.Generic.List[string]]::new() for ($r = 0; $r -lt $frame.Height; $r++) { $text = $frame.GetRowText($r) $rows.Add($text.TrimEnd()) } return ($rows -join [Environment]::NewLine) } return $frame.Render($Capability.TrueColorSupport, $Capability.Color256Support) } |