feat(charmbracelet#89): added input file as window title

README.md

@@ -103,6 +103,7 @@ Screenshots can be customized with `--flags` or [Configuration](#configuration)
 - [`-t`](#theme), [`--theme`](#theme): Theme to use for syntax highlighting.
 - [`-w`](#window), [`--window`](#window): Display window controls.
 - [`-H`](#height), [`--height`](#height): Height of terminal window.
+- [`--window.title`](#window-title): Display input file as title when window controls are displayed.
 - [`--border.width`](#border-width): Border width thickness.
 - [`--border.color`](#border-width): Border color.
 - [`--shadow.blur`](#shadow): Shadow Gaussian Blur.
@@ -216,6 +217,16 @@ freeze artichoke.hs --window
   <img alt="output of freeze command, Haskell code block with window controls applied" src="./test/golden/svg/window.svg" width="600" />
 </a>
 
+#### Window Title
+
+Display the input file as the title of the window.
+
+```bash
+freeze artichoke.hs --window --window.title
+```
+
+<img alt="output of freeze command, Haskell code block with window title applied" src="./test/golden/svg/title.svg" width="600" />
+
 ### Background
 
 Set the background color of the terminal window.

config.go

@@ -22,6 +22,7 @@ type Config struct {
 	Margin     []float64 `json:"margin" help:"Apply margin to the window." short:"m" placeholder:"0" group:"Window"`
 	Padding    []float64 `json:"padding" help:"Apply padding to the code." short:"p" placeholder:"0" group:"Window"`
 	Window     bool      `json:"window" help:"Display window controls." group:"Window"`
+	Title      bool      `json:"title" help:"Display input file as title." prefix:"window." group:"Window" hidden:""`
 	Width      float64   `json:"width" help:"Width of terminal window." short:"W" group:"Window"`
 	Height     float64   `json:"height" help:"Height of terminal window." short:"H" group:"Window"`
 

freeze_test.go

@@ -258,6 +258,11 @@ func TestFreezeConfigurations(t *testing.T) {
 			flags:  []string{"--wrap", "80", "--width", "600"},
 			output: "wrap",
 		},
+		{
+			input:  "test/input/artichoke.hs",
+			flags:  []string{"--border.radius", "8", "--window", "--window.title"},
+			output: "title",
+		},
 	}
 
 	err := os.RemoveAll("test/output/svg")

interactive.go

@@ -103,6 +103,10 @@ func runForm(config *Config) (*Config, error) {
 				Inline(true).
 				Value(&config.Window),
 
+			huh.NewConfirm().Title("Title").
+				Inline(true).
+				Value(&config.Title),
+
 			huh.NewNote().Title("Font"),
 
 			huh.NewInput().Title("Font Family ").

main.go

@@ -291,6 +291,14 @@ func main() {
 		svg.Move(windowControls, float64(config.Margin[left]), float64(config.Margin[top]))
 		image.AddChild(windowControls)
 		config.Padding[top] += (15 * scale)
+		if config.Title {
+			title, err := svg.NewWindowTitle(float64(config.Margin[left]+imageWidth/2), float64(config.Margin[top]+config.Font.Size*float64(scale)), scale, config.Font.Size, config.Font.Family, config.Input, s)
+			if err != nil {
+				printErrorFatal("Unable to add title", err)
+			} else {
+				image.AddChild(title)
+			}
+		}
 	}
 
 	if config.Border.Radius > 0 {

svg/svg.go

@@ -1,10 +1,12 @@
 package svg
 
 import (
+	"errors"
 	"fmt"
 	"strconv"
 	"strings"
 
+	"github.com/alecthomas/chroma/v2"
 	"github.com/beevik/etree"
 )
 
@@ -95,6 +97,20 @@ func NewWindowControls(r float64, x, y float64) *etree.Element {
 	return bar
 }
 
+func NewWindowTitle(x, y, scale, fs float64, ff, text string, s *chroma.Style) (*etree.Element, error) {
+	if text != "" && text != "-" {
+		input := etree.NewElement("text")
+		input.CreateAttr("font-size", fmt.Sprintf("%.2fpx", fs*float64(scale)))
+		input.CreateAttr("fill", s.Get(chroma.Text).Colour.String())
+		input.CreateAttr("font-family", ff)
+		input.SetText(text)
+		Move(input, float64(x), float64(y))
+		return input, nil
+	}
+	err := errors.New("no text")
+	return nil, err
+}
+
 // SetDimensions sets the width and height of the given element.
 func SetDimensions(element *etree.Element, width, height float64) {
 	widthAttr := element.SelectAttr("width")