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<?php |
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namespace PhpSchool\CliMenu\Dialogue; |
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use PhpSchool\CliMenu\CliMenu; |
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use PhpSchool\CliMenu\Exception\MenuNotOpenException; |
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use PhpSchool\CliMenu\MenuStyle; |
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use PhpSchool\Terminal\Terminal; |
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/** |
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* @author Aydin Hassan <[email protected]> |
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*/ |
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abstract class Dialogue |
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{ |
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/** |
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* @var MenuStyle |
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*/ |
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protected $style; |
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/** |
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* @var CliMenu |
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*/ |
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protected $parentMenu; |
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/** |
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* @var Terminal |
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*/ |
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protected $terminal; |
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/** |
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* @var string $text |
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*/ |
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protected $text; |
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/** |
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* @var int |
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*/ |
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protected $x; |
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/** |
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* @var int |
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*/ |
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protected $y; |
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public function __construct(CliMenu $parentMenu, MenuStyle $menuStyle, Terminal $terminal, string $text) |
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{ |
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$this->style = $menuStyle; |
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$this->terminal = $terminal; |
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$this->text = $text; |
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$this->parentMenu = $parentMenu; |
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$this->calculateCoordinates(); |
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} |
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/** |
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* @throws MenuNotOpenException |
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*/ |
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protected function assertMenuOpen() : void |
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{ |
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if (!$this->parentMenu->isOpen()) { |
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throw new MenuNotOpenException; |
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} |
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} |
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/** |
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* Calculate the co-ordinates to write the messages |
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*/ |
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protected function calculateCoordinates() : void |
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{ |
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//y |
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$textLines = count(explode("\n", $this->text)) + 2; |
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$this->y = ceil($this->parentMenu->getCurrentFrame()->count() / 2) - ceil($textLines / 2) + 1; |
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//x |
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$parentStyle = $this->parentMenu->getStyle(); |
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$dialogueHalfLength = (mb_strlen($this->text) + ($this->style->getPaddingLeftRight() * 2)) / 2; |
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$widthHalfLength = ceil($parentStyle->getWidth() / 2 + $parentStyle->getMargin()); |
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$this->x = $widthHalfLength - $dialogueHalfLength; |
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} |
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/** |
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* Write an empty row |
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*/ |
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protected function emptyRow() : void |
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{ |
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$this->write( |
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sprintf( |
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"%s%s%s%s%s\n", |
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$this->style->getColoursSetCode(), |
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str_repeat(' ', $this->style->getPaddingLeftRight()), |
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str_repeat(' ', mb_strlen($this->text)), |
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str_repeat(' ', $this->style->getPaddingLeftRight()), |
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$this->style->getColoursResetCode() |
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) |
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); |
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} |
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/** |
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* Write some text at a particular column |
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*/ |
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protected function write(string $text, int $column = null) : void |
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{ |
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$this->terminal->moveCursorToColumn($column ?: $this->x); |
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$this->terminal->write($text); |
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} |
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public function getStyle() : MenuStyle |
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{ |
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return $this->style; |
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} |
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} |
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This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.