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<?php
/**
*
* Gets the installed version of ImageMagick and compares the
* appropriate version to the installed version. *
*
* @param $testIm6Version
* @param $im7Version
* @return int
*/
function version_compare_imagemagick($testIm6Version, $im7Version)
{
$versionInfo = \Imagick::getVersion();
if (array_key_exists("versionString", $versionInfo) == false) {
die("skip unable to determine ImageMagick version.");
}
$versionInstalledStringComplete = $versionInfo["versionString"];
$firstSpace = strpos($versionInstalledStringComplete, ' ');
if ($firstSpace === false) {
die("Failed to understand version string [$versionInstalledStringComplete] - finding first space");
}
$secondSpace = strpos($versionInstalledStringComplete, ' ', $firstSpace + 1);
if ($secondSpace === false) {
die("Failed to understand version string [$versionInstalledStringComplete] - finding second space");
}
$versionInstalledString = substr($versionInstalledStringComplete, $firstSpace + 1, $secondSpace - $firstSpace - 1);
// echo "versionInstalledString is $versionInstalledString \n";
$versionToCompare = $im7Version;
if (substr($versionInstalledString, 0, 1) === '6') {
$versionToCompare = $testIm6Version;
}
return version_compare($versionInstalledString, $versionToCompare);
}
/**
*
* Compares the installed version of ImageMagick and returns true if the appropriate
* version is greater
*
* @param $testIm6Version
* @param $im7Version
* @return bool
*/
function isVersionGreaterEqual($testIm6Version, $im7Version)
{
$versionCompare = version_compare_imagemagick($testIm6Version, $im7Version);
// echo "version compare for $testIm6Version, $im7Version is $versionCompare \n";
if ($versionCompare >= 0) {
return true;
}
return false;
}
/**
* On some systems, where the standard fonts aren't available, trying
* to draw any text fails as the ImageMagick default font is null.
*
* This function just find a 'sensible' font to use, either from the
* preferred list, or just the first one from queryFonts(). That 'probably'
* is the right thing to do, as it makes the tests more stable.
*/
function findDefaultFont()
{
$knownFonts = [
'Courier',
'Helvetica',
'Times-Roman',
'Liberation-Mono',
'Utopia',
];
$fontList = \Imagick::queryFonts();
foreach ($knownFonts as $knownFont) {
if (in_array($knownFont, $fontList, true) === true) {
return $knownFont;
}
}
if (count($fontList) !== 0) {
return $fontList[0];
}
throw new \Exception("No fonts available on system, apparently.");
}
// Find and set a font for the Imagick object
function setFontForImagick(\Imagick $imagick)
{
$font = findDefaultFont();
$imagick->setFont($font);
}
// Find and set a font for the ImagickDraw object
function setFontForImagickDraw(\ImagickDraw $imagickDraw)
{
$font = findDefaultFont();
$imagickDraw->setFont($font);
}
function check_value(array $values, $name, $expected_value)
{
if (array_key_exists($name, $values) !== true) {
$message = "Expected key '$name' not set. Array contains:\n";
$message .= var_export($values, true);
throw new \Exception($message);
}
$value = $values[$name];
$epsilon = 0.01;
if (($value < $expected_value - $epsilon) || ($value > $expected_value + $epsilon)) {
$message = "Value for $name doesn't match expected. Expected: $expected_value, actual: $value";
throw new \Exception($message);
}
echo "Value for '$name' is $value which is close enough to expected $expected_value\n";
}
function check_value_with_epsilon(array $values, $name, $expected_value, $epsilon)
{
if (array_key_exists($name, $values) !== true) {
$message = "Expected key '$name' not set. Array contains:\n";
$message .= var_export($values, true);
throw new \Exception($message);
}
$value = $values[$name];
if (($value < $expected_value - $epsilon) || ($value > $expected_value + $epsilon)) {
$message = "Value for $name doesn't match expected. Expected: $expected_value, actual: $value, epsilon = $epsilon";
throw new \Exception($message);
}
echo "Value for '$name' is $value which is close enough to expected $expected_value\n";
}
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