Added back in v1

textlayer.go

@@ -0,0 +1,107 @@
+package ps
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+)
+
+// TextItem holds the text element of a TextLayer.
+type TextItem struct {
+	contents string
+	size     float64
+	font     string
+	parent   *ArtLayer
+}
+
+// TextItemJSON is the exported version of TextItem
+// that allows it to be marshaled and unmarshaled
+// into JSON.
+type TextItemJSON struct {
+	Contents string
+	Size     float64
+	Font     string
+}
+
+// Contents returns the raw text of the TextItem.
+func (t TextItem) Contents() string {
+	return t.contents
+}
+
+// Size returns the font size of the TextItem
+func (t TextItem) Size() float64 {
+	return t.size
+}
+
+// MarshalJSON implements the json.Marshaler interface, allowing the TextItem to be
+// saved to disk in JSON format.
+func (t *TextItem) MarshalJSON() ([]byte, error) {
+	return json.Marshal(&TextItemJSON{
+		Contents: t.contents,
+		Size:     t.size,
+		Font:     t.font,
+	})
+}
+
+// UnmarshalJSON loads the JSON data into the TextItem
+func (t *TextItem) UnmarshalJSON(data []byte) error {
+	tmp := &TextItemJSON{}
+	if err := json.Unmarshal(data, &tmp); err != nil {
+		return err
+	}
+	t.contents = tmp.Contents
+	t.size = tmp.Size
+	t.font = tmp.Font
+	return nil
+}
+
+// SetText sets the text to the given string.
+func (t *TextItem) SetText(txt string) {
+	if txt == t.contents {
+		return
+	}
+	var err error
+	lyr := JSLayer(t.parent.Path())
+	bndtext := "[[' + lyr.bounds[0] + ',' + lyr.bounds[1] + '],[' + lyr.bounds[2] + ',' + lyr.bounds[3] + ']]"
+	js := fmt.Sprintf(`%s.textItem.contents='%s';var lyr = %[1]s;stdout.writeln(('%[3]s').replace(/ px/g, ''));`,
+		lyr, txt, bndtext)
+	var byt []byte
+	if byt, err = DoJS("compilejs.jsx", js); err != nil {
+		log.Panic(err)
+	}
+	var bnds *[2][2]int
+	err = json.Unmarshal(byt, &bnds)
+	if err != nil || bnds == nil {
+		log.Println("text:", txt)
+		log.Println("js:", js)
+		fmt.Printf("byt: '%s'\n", string(byt))
+		log.Panic(err)
+	}
+	t.contents = txt
+	t.parent.bounds = *bnds
+}
+
+// SetSize sets the size of the TextItem's font.
+func (t *TextItem) SetSize(s float64) {
+	if t.size == s {
+		return
+	}
+	lyr := JSLayer(t.parent.Path())
+	js := fmt.Sprintf("%s.textItem.size=%f;", lyr, s)
+	_, err := DoJS("compilejs.jsx", js)
+	if err != nil {
+		t.size = s
+	}
+}
+
+// Fmt applies the given font and style to all characters
+// in the range [start, end].
+func (t *TextItem) Fmt(start, end int, font, style string) {
+	if !t.parent.Visible() {
+		return
+	}
+	_, err := DoJS("fmtText.jsx", fmt.Sprint(start), fmt.Sprint(end), font, style)
+	if err != nil {
+		log.Panic(err)
+	}
+}