paste images with ctrl+v (#26)

internal/tui/image/clipboard_unix.go

@@ -0,0 +1,49 @@
+//go:build !windows
+
+package image
+
+import (
+	"bytes"
+	"fmt"
+	"image"
+	"github.com/atotto/clipboard"
+)
+
+func GetImageFromClipboard() ([]byte, string, error) {
+	text, err := clipboard.ReadAll()
+	if err != nil {
+		return nil, "", fmt.Errorf("Error reading clipboard")
+	}
+
+	if text == "" {
+		return nil, "", nil
+	}
+
+	binaryData := []byte(text)
+	imageBytes, err := binaryToImage(binaryData)
+	if err != nil {
+		return nil, text, nil
+	}
+	return imageBytes, "", nil
+
+}
+
+
+
+func binaryToImage(data []byte) ([]byte, error) {
+	reader := bytes.NewReader(data)
+	img, _, err := image.Decode(reader)
+	if err != nil {
+		return nil, fmt.Errorf("Unable to covert bytes to image")
+	}
+
+	return ImageToBytes(img)
+}
+
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}