Current File : //vendor/psy/psysh/src/Readline/Interactive/Renderer/Frame.php
<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2026 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\Readline\Interactive\Renderer;
/**
* The visible state of an interactive readline render pass.
*
* Holds the vertical stack of pre-styled logical lines plus the desired
* cursor position (in wrapped frame coordinates). FrameRenderer diffs the
* previous Frame against the next one to produce minimal terminal updates.
*/
class Frame
{
/** @var string[] */
private array $lines;
private int $cursorRow;
private int $cursorColumn;
/**
* @param string[] $lines Pre-styled logical lines (OutputFormatter tags or raw ANSI)
* @param int $cursorRow Desired cursor row in wrapped frame coordinates (0-indexed)
* @param int $cursorColumn Desired terminal column for the cursor (1-indexed)
*/
public function __construct(array $lines, int $cursorRow, int $cursorColumn)
{
$this->lines = $lines;
$this->cursorRow = $cursorRow;
$this->cursorColumn = $cursorColumn;
}
/**
* An empty frame with the cursor at the origin.
*/
public static function empty(): self
{
return new self([], 0, 0);
}
/**
* Append a pre-styled logical line to this frame.
*/
public function appendLine(string $line): void
{
$this->lines[] = $line;
}
/**
* Update the desired cursor position.
*/
public function setCursor(int $row, int $column): void
{
$this->cursorRow = $row;
$this->cursorColumn = $column;
}
/**
* @return string[]
*/
public function getLines(): array
{
return $this->lines;
}
public function getCursorRow(): int
{
return $this->cursorRow;
}
public function getCursorColumn(): int
{
return $this->cursorColumn;
}
}
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