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Code Issues Releases Wiki Activity

added pickColor method

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This commit is contained in:
Oliver Vogel
2013-02-03 12:59:32 +01:00
parent 27824b1256
commit c0972d7bbc
3 changed files with 82 additions and 4 deletions
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1
README.md
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@@ -55,6 +55,7 @@ Add the facade of this package to the `$aliases` array.
* Image::ellipse - Draw an ellipse centered at given coordinates
* Image::circle - Draw a circle centered at given coordinates
* Image::pixel - Set single pixel with given hexadecimal color at position x,y
* Image::pickColor - Picks and formats color at position in current image
* Image::reset - Reset to original image resource
* Image::save - Save image in filesystem

45
src/Intervention/Image/Image.php
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@@ -486,9 +486,37 @@ class Image
return $data;
}
/**
* Picks and formats color at position
*
* @param int $x
* @param int $y
* @param string $format
* @return mixed
*/
public function pickColor($x, $y, $format = null)
{
$colorindex = imagecolorat($this->resource, $x, $y);
// pick color at postion
$color = imagecolorat($this->resource, $x, $y);
// format color
switch (strtolower($format)) {
case 'rgb':
$color = imagecolorsforindex($this->resource, $color);
$color = sprintf('rgb(%d, %d, %d)', $color['red'], $color['green'], $color['blue']);
break;
case 'hex':
$color = imagecolorsforindex($this->resource, $color);
$color = sprintf('#%02x%02x%02x', $color['red'], $color['green'], $color['blue']);
break;
case 'array':
$color = imagecolorsforindex($this->resource, $color);
break;
}
return $color;
}
/**
@@ -499,19 +527,28 @@ class Image
*/
public function parseColor($value)
{
if (is_array($value)) { // parse color array like: array(155, 155, 155)
if (is_array($value)) {
// parse color array like: array(155, 155, 155)
list($r, $g, $b) = $value;
} elseif(is_string($value)) { // parse color in hexidecimal str like #cccccc or cccccc or ccc
} elseif(is_string($value)) {
// parse color string in hexidecimal format like #cccccc or cccccc or ccc
if (preg_match('/^#?([a-f0-9]{1,2})([a-f0-9]{1,2})([a-f0-9]{1,2})$/i', $value, $matches)) {
$r = strlen($matches[1]) == '1' ? $matches[1].$matches[1] : $matches[1];
$g = strlen($matches[2]) == '1' ? $matches[2].$matches[2] : $matches[2];
$b = strlen($matches[3]) == '1' ? $matches[3].$matches[3] : $matches[3];
}
// parse color string in format rgb(140, 140, 140)
} elseif (preg_match('/^rgb ?\(([0-9]{1,3}), ?([0-9]{1,3}), ?([0-9]{1,3})\)$/i', $value, $matches)) {
$r = ($matches[1] >= 0 && $matches[1] <= 255) ? intval($matches[1]) : 0;
$g = ($matches[1] >= 0 && $matches[2] <= 255) ? intval($matches[2]) : 0;
$b = ($matches[1] >= 0 && $matches[3] <= 255) ? intval($matches[3]) : 0;
}
}
if (isset($r) && isset($g) && isset($b)) {

40
tests/ImageTest.php
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@@ -235,6 +235,36 @@ class ImageTest extends PHPUnit_Framework_Testcase
$this->assertInternalType('string', $img);
}
public function testPickColor()
{
$img = $this->getTestImage();
// int color
$color = $img->pickColor(100, 100);
$this->assertInternalType('int', $color);
$this->assertEquals($color, 16776956);
// rgb color string
$color = $img->pickColor(799, 599, 'rgb');
$this->assertInternalType('string', $color);
$this->assertEquals($color, 'rgb(255, 166, 0)');
// hex color string
$color = $img->pickColor(799, 599, 'hex');
$this->assertInternalType('string', $color);
$this->assertEquals($color, '#ffa600');
// rgb color array
$color = $img->pickColor(799, 599, 'array');
$this->assertInternalType('array', $color);
$this->assertInternalType('int', $color['red']);
$this->assertEquals($color['red'], 255);
$this->assertInternalType('int', $color['green']);
$this->assertEquals($color['green'], 166);
$this->assertInternalType('int', $color['blue']);
$this->assertEquals($color['blue'], 0);
}
public function testParseColor()
{
$img = $this->getTestImage();
@@ -252,6 +282,16 @@ class ImageTest extends PHPUnit_Framework_Testcase
$color = $img->parseColor('ccc');
$this->assertInternalType('int', $color);
$color = $img->parseColor('rgb(1, 14, 144)');
$this->assertInternalType('int', $color);
$color = $img->parseColor('rgb (255, 255, 255)');
$this->assertInternalType('int', $color);
$color = $img->parseColor('rgb(0,0,0)');
$this->assertInternalType('int', $color);
}
}