toPdfWidget method

Future<Widget> toPdfWidget(ExportInstance instance, TextField? contextWidget)

Converts the TextField to a pw.Widget.

Implementation

Future<pw.Widget> toPdfWidget(
    ExportInstance instance, TextField? contextWidget) async {
  final TextField textField = contextWidget ?? this;

  pw.Widget? label;

  if (textField.decoration?.label != null) {
    final pw.Widget labelWidget =
        await instance.exportFunc(textField.decoration!.label!);

    label = pw.Transform.scale(
      scale: 0.6,
      child: pw.Container(
        color: PdfColors.white,
        padding: const pw.EdgeInsets.symmetric(horizontal: 2.0),
        child: labelWidget,
      ),
    );
  }

  if (textField.decoration?.labelText != null) {
    label = pw.Transform.scale(
      scale: 0.6,
      child: pw.Container(
        color: PdfColors.white,
        padding: const pw.EdgeInsets.symmetric(horizontal: 2.0),
        child: pw.Text(
          textField.decoration!.labelText!,
        ),
      ),
    );
  }

  return pw.Stack(
    alignment: pw.Alignment.center,
    children: [
      pw.Container(
        padding: const pw.EdgeInsets.all(8.0),
        margin: const pw.EdgeInsets.all(8.0),
        decoration:
            !instance.delegate.options.textFieldOptions.ignoreDecoration
                ? textField.decoration?.border?.toPdfInputBorder()
                : null,
        child: instance.delegate.options.textFieldOptions.interactive
            ? pw.TextField(
                width: double.infinity,
                name: textField.hashCode.toString(),
                defaultValue: textField.controller?.value.text,
                textStyle: await (instance.delegate.options.textFieldOptions
                            .getTextStyle(textField.key) ??
                        textField.style)
                    ?.toPdfTextStyle(instance.delegate.fontData),
                maxLength: textField.maxLength,
                fieldFlags: {
                  if (textField.maxLines != null && textField.maxLines! > 1)
                    PdfFieldFlags.multiline,
                  if (textField.obscureText) PdfFieldFlags.password,
                },
              )
            : pw.ConstrainedBox(
                constraints: const pw.BoxConstraints(
                    minHeight: 13, minWidth: double.infinity),
                child: pw.Text(
                  textField.controller?.value.text ?? '',
                  maxLines: textField.maxLines,
                  textAlign: textField.textAlign.toPdfTextAlign(),
                  textDirection:
                      textField.textDirection?.toPdfTextDirection(),
                  style: await (instance.delegate.options.textFieldOptions
                              .getTextStyle(textField.key) ??
                          textField.style)
                      ?.toPdfTextStyle(instance.delegate.fontData),
                )),
      ),
      if (label != null)
        pw.Positioned(
          left: 10.0,
          top: 0.0,
          child: label,
        ),
    ],
  );
}