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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\CliMenu\Terminal\TerminalInterface; |
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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 TerminalInterface |
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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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/** |
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* @param CliMenu $parentMenu |
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* @param MenuStyle $menuStyle |
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* @param TerminalInterface $terminal |
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* @param string $text |
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*/ |
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public function __construct(CliMenu $parentMenu, MenuStyle $menuStyle, TerminalInterface $terminal, $text) |
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{ |
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$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() |
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{ |
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if (!$this->parentMenu->isOpen()) { |
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throw new MenuNotOpenException; |
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} |
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} |
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/** |
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* Calculate the co-ordinates to write the messages |
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*/ |
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protected function calculateCoordinates() |
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{ |
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//y |
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$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->getPadding() * 2)) / 2; |
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$widthHalfLength = ceil($parentStyle->getWidth() / 2); |
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$this->x = $widthHalfLength - $dialogueHalfLength; |
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} |
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/** |
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* Write an empty row |
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*/ |
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protected function emptyRow() |
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{ |
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$this->write( |
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sprintf( |
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"%s%s%s%s%s\n", |
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$this->style->getUnselectedSetCode(), |
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str_repeat(' ', $this->style->getPadding()), |
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str_repeat(' ', mb_strlen($this->text)), |
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str_repeat(' ', $this->style->getPadding()), |
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$this->style->getUnselectedUnsetCode() |
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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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* @param int $column |
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* @param string $text |
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*/ |
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protected function write($text, $column = null) |
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{ |
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$this->terminal->moveCursorToColumn($column ?: $this->x); |
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echo $text; |
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} |
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/** |
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* @return MenuStyle |
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*/ |
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public function getStyle() |
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{ |
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return $this->style; |
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} |
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} |
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php-school /
cli-menu
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