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Add background color functionality to certificate #68

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Add background color functionality to certificate #68

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35 changes: 33 additions & 2 deletions element/image/classes/element.php
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,19 @@ public function render_form_elements($mform) {
$mform->hideIf('posy', 'isbackground', 'checked');
}

// Add a color picker for background color
$mform->addElement('certificate_colourpicker', 'backgroundcolor', get_string('backgroundcolor', 'tool_certificate'));
$mform->setType('backgroundcolor', PARAM_RAW);
$mform->addHelpButton('backgroundcolor', 'backgroundcolor', 'tool_certificate');

// Add input fields for entering dimensions for the background color
$mform->addElement('text', 'backgroundwidth', get_string('backgroundwidth', 'tool_certificate'), ['size' => 10]);
$mform->setType('backgroundwidth', PARAM_INT);
$mform->addHelpButton('backgroundwidth', 'backgroundwidth', 'tool_certificate');

$mform->addElement('text', 'backgroundheight', get_string('backgroundheight', 'tool_certificate'), ['size' => 10]);
$mform->setType('backgroundheight', PARAM_INT);
$mform->addHelpButton('backgroundheight', 'backgroundheight', 'tool_certificate');
}

/**
Expand Down Expand Up @@ -130,6 +143,9 @@ private function calculate_additional_data($data) {
$arrtostore = [
'width' => !empty($data->width) ? (int) $data->width : 0,
'height' => !empty($data->height) ? (int) $data->height : 0,
'backgroundcolor' => !empty($data->backgroundcolor) ? $data->backgroundcolor : '',
'backgroundwidth' => !empty($data->backgroundwidth) ? (int) $data->backgroundwidth : 0,
'backgroundheight' => !empty($data->backgroundheight) ? (int) $data->backgroundheight : 0,
];
if ($this->can_be_used_as_a_background()) {
$arrtostore['isbackground'] = !empty($data->isbackground);
Expand Down Expand Up @@ -172,6 +188,12 @@ public function render($pdf, $preview, $user, $issue) {
}

element_helper::render_image($pdf, $this, $file, [], $imageinfo['width'], $imageinfo['height']);

// Render background color
if (!empty($imageinfo['backgroundcolor'])) {
$pdf->SetFillColorArray(\TCPDF_COLORS::convertHTMLColorToDec($imageinfo['backgroundcolor']));
$pdf->Rect(0, 0, $imageinfo['backgroundwidth'], $imageinfo['backgroundheight'], 'F');
}
}

/**
Expand Down Expand Up @@ -204,8 +226,17 @@ public function render_html() {
$fileimageinfo = $file->get_imageinfo();
}

return element_helper::render_image_html($url, $fileimageinfo, (float)$imageinfo['width'], (float)$imageinfo['height'],
$html = element_helper::render_image_html($url, $fileimageinfo, (float)$imageinfo['width'], (float)$imageinfo['height'],
$this->get_display_name());

// Render background color
if (!empty($imageinfo['backgroundcolor'])) {
$html .= \html_writer::div('', '', [
'style' => 'background-color: ' . $imageinfo['backgroundcolor'] . '; width: ' . $imageinfo['backgroundwidth'] . 'mm; height: ' . $imageinfo['backgroundheight'] . 'mm;'
]);
}

return $html;
}

/**
Expand All @@ -217,7 +248,7 @@ public function prepare_data_for_form() {
$record = parent::prepare_data_for_form();
if (!empty($this->get_data())) {
$dateinfo = json_decode($this->get_data());
$keys = ['width', 'height', 'isbackground'];
$keys = ['width', 'height', 'isbackground', 'backgroundcolor', 'backgroundwidth', 'backgroundheight'];
foreach ($keys as $key) {
if (isset($dateinfo->$key)) {
$record->$key = $dateinfo->$key;
Expand Down
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