public function FlotPie::buildOptionsForm in Flot 8

Provide a form to edit options for this plugin.

Overrides StylePluginBase::buildOptionsForm

File

flot_views_pie/src/Plugin/views/style/FlotPie.php, line 37

Class

FlotPie

Style plugin to render a list of numbers as a pie chart.

Namespace

Drupal\flot_views_pie\Plugin\views\style

Code

public function buildOptionsForm(&$form, FormStateInterface $form_state) {
  parent::buildOptionsForm($form, $form_state);

  // Create an array of allowed columns from the data we know.
  $field_names = $this->displayHandler
    ->getFieldLabels();
  $form['labels'] = [
    '#title' => $this
      ->t('The field that contains the chart labels'),
    '#type' => 'select',
    '#options' => $field_names,
    '#default_value' => $this->options['labels'],
  ];
  $form['values'] = [
    '#title' => $this
      ->t('The field that contains the chart data'),
    '#type' => 'select',
    '#options' => $field_names,
    '#default_value' => $this->options['values'],
  ];
  $form['pie_or_bar'] = [
    '#type' => 'radios',
    '#title' => $this
      ->t('Chart Type'),
    '#options' => array(
      'pie' => $this
        ->t('Pie Chart'),
      'bar' => $this
        ->t('Bar Chart'),
    ),
    '#default_value' => $this->options['pie_or_bar'],
    '#description' => $this
      ->t('Should the categorical data be rendered in a pue chart or bar chart?'),
  ];
}