/**
* @covers ColorThief\VBox::copy
*/
public function testCopy()
{
$this->vbox->histo = array(25 => 8);
$copy = $this->vbox->copy();
$this->assertInstanceOf('ColorThief\\VBox', $copy);
$this->assertSame($this->vbox->r1, $copy->r1);
$this->assertSame($this->vbox->r2, $copy->r2);
$this->assertSame($this->vbox->g1, $copy->g1);
$this->assertSame($this->vbox->g2, $copy->g2);
$this->assertSame($this->vbox->b1, $copy->b1);
$this->assertSame($this->vbox->b2, $copy->b2);
$this->assertSame($this->vbox->histo, $copy->histo);
}
/**
* @param array $histo
* @param VBox $vBox
* @return array|void
*/
private static function medianCutApply($histo, $vBox)
{
if (!$vBox->count()) {
return;
}
// If the vbox occupies just one element in color space, it can't be split
if ($vBox->count() == 1) {
return array($vBox->copy());
}
// Select the longest axis for splitting
$cutColor = $vBox->longestAxis();
// Find the partial sum arrays along the selected axis.
list($total, $partialSum) = static::sumColors($cutColor, $histo, $vBox);
return static::doCut($cutColor, $vBox, $partialSum, $total);
}
/**
* @param array $histo
* @param VBox $vBox
* @return array|void
*/
private static function medianCutApply($histo, $vBox)
{
if (!$vBox->count()) {
return;
}
// If the vbox occupies just one element in color space, it can't be split
if ($vBox->count() == 1) {
return array($vBox->copy());
}
// Select the longest axis for splitting
$redWidth = $vBox->r2 - $vBox->r1 + 1;
$greenWidth = $vBox->g2 - $vBox->g1 + 1;
$blueWidth = $vBox->b2 - $vBox->b1 + 1;
$maxWidth = max($redWidth, $greenWidth, $blueWidth);
// Determine the cut planes
switch ($maxWidth) {
case $redWidth:
list($total, $partialSum, $favorColor) = self::sumColors(self::favorRed(), $histo, $vBox);
break;
case $greenWidth:
list($total, $partialSum, $favorColor) = self::sumColors(self::favorGreen(), $histo, $vBox);
break;
case $blueWidth:
default:
list($total, $partialSum, $favorColor) = self::sumColors(self::favorBlue(), $histo, $vBox);
break;
}
return static::doCut($favorColor, $vBox, $partialSum, $total);
}
