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-rw-r--r--library/Icinga/Cli/AnsiScreen.php122
1 files changed, 122 insertions, 0 deletions
diff --git a/library/Icinga/Cli/AnsiScreen.php b/library/Icinga/Cli/AnsiScreen.php
new file mode 100644
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--- /dev/null
+++ b/library/Icinga/Cli/AnsiScreen.php
@@ -0,0 +1,122 @@
+<?php
+/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Cli;
+
+use Icinga\Cli\Screen;
+use Icinga\Exception\IcingaException;
+
+// @see http://en.wikipedia.org/wiki/ANSI_escape_code
+
+class AnsiScreen extends Screen
+{
+ protected $fgColors = array(
+ 'black' => '30',
+ 'darkgray' => '1;30',
+ 'red' => '31',
+ 'lightred' => '1;31',
+ 'green' => '32',
+ 'lightgreen' => '1;32',
+ 'brown' => '33',
+ 'yellow' => '1;33',
+ 'blue' => '34',
+ 'lightblue' => '1;34',
+ 'purple' => '35',
+ 'lightpurple' => '1;35',
+ 'cyan' => '36',
+ 'lightcyan' => '1;36',
+ 'lightgray' => '37',
+ 'white' => '1;37',
+ );
+
+ protected $bgColors = array(
+ 'black' => '40',
+ 'red' => '41',
+ 'green' => '42',
+ 'brown' => '43',
+ 'blue' => '44',
+ 'purple' => '45',
+ 'cyan' => '46',
+ 'lightgray' => '47',
+ );
+
+ public function strlen($string)
+ {
+ return strlen($this->stripAnsiCodes($string));
+ }
+
+ public function stripAnsiCodes($string)
+ {
+ return preg_replace('/\e\[?.*?[\@-~]/', '', $string);
+ }
+
+ public function clear()
+ {
+ return "\033[2J" // Clear the whole screen
+ . "\033[1;1H" // Move the cursor to row 1, column 1
+ . "\033[1S"; // Scroll whole page up by 1 line (why?)
+ }
+
+ public function underline($text)
+ {
+ return "\033[4m"
+ . $text
+ . "\033[0m"; // Reset color codes
+ }
+
+ public function colorize($text, $fgColor = null, $bgColor = null)
+ {
+ return $this->startColor($fgColor, $bgColor)
+ . $text
+ . "\033[0m"; // Reset color codes
+ }
+
+ protected function fgColor($color)
+ {
+ if (! array_key_exists($color, $this->fgColors)) {
+ throw new IcingaException(
+ 'There is no such foreground color: %s',
+ $color
+ );
+ }
+ return $this->fgColors[$color];
+ }
+
+ protected function bgColor($color)
+ {
+ if (! array_key_exists($color, $this->bgColors)) {
+ throw new IcingaException(
+ 'There is no such background color: %s',
+ $color
+ );
+ }
+ return $this->bgColors[$color];
+ }
+
+ protected function startColor($fgColor = null, $bgColor = null)
+ {
+ $escape = "ESC[";
+ $parts = array();
+ if ($fgColor !== null
+ && $bgColor !== null
+ && ! array_key_exists($bgColor, $this->bgColors)
+ && array_key_exists($bgColor, $this->fgColors)
+ && array_key_exists($fgColor, $this->bgColors)
+ ) {
+ $parts[] = '7'; // reverse video, negative image
+ $parts[] = $this->bgColor($fgColor);
+ $parts[] = $this->fgColor($bgColor);
+ } else {
+ if ($fgColor !== null) {
+ $parts[] = $this->fgColor($fgColor);
+ }
+ if ($bgColor !== null) {
+ $parts[] = $this->bgColor($bgColor);
+ }
+ }
+ if (empty($parts)) {
+ return '';
+ }
+ return "\033[" . implode(';', $parts) . 'm';
+ }
+}