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Merge pull request #104 from mikedidomizio/#92
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#92 Multi color text and multi color stroke
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@claviska
claviska committed Oct 22, 2015
2 parents fde5485 + 31af7f5 commit d51be02
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Showing 3 changed files with 100 additions and 9 deletions.
6 changes: 6 additions & 0 deletions example/index.php
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Expand Up @@ -111,9 +111,15 @@
// Text
$img->load('butterfly.jpg')->text('Butterfly', __DIR__.'/delicious.ttf', 32, '#FFFFFF', 'bottom', 0, -20)->save('processed/butterfly-text.jpg');

// Text with multiple colors
$img->load('butterfly.jpg')->text('Butterfly', __DIR__.'/delicious.ttf', 32, ['#F00', '#FF7F00', '#FF0', '#0F0', '#0FF', '#00F'], 'bottom', 0, -20, null, null, null, 3)->save("processed/butterfly-text-stroke-multi-colored-text.jpg");

// Text with stroke
$img->load('butterfly.jpg')->text('Butterfly', __DIR__.'/delicious.ttf', 32, '#FFFFFF', 'bottom', 0, -20, '#000', 2)->save('processed/butterfly-text-with-stroke.jpg');

// Text with multiple colored stroke
$img->load('butterfly.jpg')->text('Butterfly', __DIR__.'/delicious.ttf', 32, '#000', 'bottom', 0, -20, ['#F00', '#FF7F00', '#FF0', '#0F0', '#0FF', '#00F'], 2, null, 3)->save("processed/butterfly-text-with-stroke-multi-colored-stroke.jpg");

// Right align text
$img->load('butterfly.jpg')->text('Lorem Ipsum', __DIR__.'/delicious.ttf', 32, '#FFFFFF', 'top right', 0, 0, null, null, 'right')->save('processed/butterfly-right-align-text.jpg');

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3 changes: 3 additions & 0 deletions readme.md
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Expand Up @@ -222,6 +222,9 @@ $img->overlay('watermark.png', 'bottom right', .5, -10, -10);

// Add 32-point white text top-centered (plus 20px) on the image*
$img->text('Your Text', 'font.ttf', 32, '#FFFFFF', 'top', 0, 20);

// Add multiple colored text
$img->text('Your Text', 'font.ttf', 32, ['#FFFFFF' '#000000'], 'top', 0, 20);
```

* Valid positions are *center, top, right, bottom, left, top left, top
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100 changes: 91 additions & 9 deletions src/abeautifulsite/SimpleImage.php
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Expand Up @@ -953,23 +953,35 @@ function smooth($level) {
* @param string $text
* @param string $font_file
* @param float|int $font_size
* @param string $color
* @param string|array $color
* @param string $position
* @param int $x_offset
* @param int $y_offset
* @param string|array $stroke_color
* @param string $stroke_size
* @param string $alignment
* @param int $letter_spacing
*
* @return SimpleImage
* @throws Exception
*
*/
function text($text, $font_file, $font_size = 12, $color = '#000000', $position = 'center', $x_offset = 0, $y_offset = 0, $stroke_color = null, $stroke_size = null, $alignment = null) {
function text($text, $font_file, $font_size = 12, $color = '#000000', $position = 'center', $x_offset = 0, $y_offset = 0, $stroke_color = null, $stroke_size = null, $alignment = null, $letter_spacing = 0) {

// todo - this method could be improved to support the text angle
$angle = 0;

// Determine text color
$rgba = $this->normalize_color($color);
$color = imagecolorallocatealpha($this->image, $rgba['r'], $rgba['g'], $rgba['b'], $rgba['a']);
if(is_array($color)) {
foreach($color as $var) {
$rgba = $this->normalize_color($var);
$color_arr[] = imagecolorallocatealpha($this->image, $rgba['r'], $rgba['g'], $rgba['b'], $rgba['a']);
}
} else {
$rgba = $this->normalize_color($color);
$color_arr[] = imagecolorallocatealpha($this->image, $rgba['r'], $rgba['g'], $rgba['b'], $rgba['a']);
}


// Determine textbox size
$box = imagettfbbox($font_size, $angle, $font_file, $text);
Expand Down Expand Up @@ -1033,14 +1045,84 @@ function text($text, $font_file, $font_size = 12, $color = '#000000', $position
// Add the text
imagesavealpha($this->image, true);
imagealphablending($this->image, true);
if( isset($stroke_color) && isset($stroke_size) ) {

if(isset($stroke_color) && isset($stroke_size)) {

// Text with stroke
$rgba = $this->normalize_color($color);
$stroke_color = imagecolorallocatealpha($this->image, $rgba['r'], $rgba['g'], $rgba['b'], $rgba['a']);
$this->imagettfstroketext($this->image, $font_size, $angle, $x, $y, $color, $stroke_color, $stroke_size, $font_file, $text);
if(is_array($color) || is_array($stroke_color)) {
// Multi colored text and/or multi colored stroke

if(is_array($stroke_color)) {
foreach($stroke_color as $key => $var) {
$rgba = $this->normalize_color($stroke_color[$key]);
$stroke_color[$key] = imagecolorallocatealpha($this->image, $rgba['r'], $rgba['g'], $rgba['b'], $rgba['a']);
}
} else {
$rgba = $this->normalize_color($stroke_color);
$stroke_color = imagecolorallocatealpha($this->image, $rgba['r'], $rgba['g'], $rgba['b'], $rgba['a']);
}

$array_of_letters = str_split($text, 1);

foreach($array_of_letters as $key => $var) {

if($key > 0) {
$dimensions = imagettfbbox($font_size, $angle, $font_file, $array_of_letters[$key - 1]);
$x += abs($dimensions[4] - $dimensions[0]) + $letter_spacing;
}

// If the next letter is empty, we just move forward to the next letter
if($var !== " ") {
$this->imagettfstroketext($this->image, $font_size, $angle, $x, $y, current($color_arr), current($stroke_color), $stroke_size, $font_file, $var);

// #000 is 0, black will reset the array so we write it this way
if(next($color_arr) === false) {
reset($color_arr);
}

// #000 is 0, black will reset the array so we write it this way
if(next($stroke_color) === false) {
reset($stroke_color);
}
}
}

} else {
$rgba = $this->normalize_color($stroke_color);
$stroke_color = imagecolorallocatealpha($this->image, $rgba['r'], $rgba['g'], $rgba['b'], $rgba['a']);
$this->imagettfstroketext($this->image, $font_size, $angle, $x, $y, $color_arr[0], $stroke_color, $stroke_size, $font_file, $text);
}

} else {

// Text without stroke
imagettftext($this->image, $font_size, $angle, $x, $y, $color, $font_file, $text);

if(is_array($color)) {
// Multi colored text

$array_of_letters = str_split($text, 1);

foreach($array_of_letters as $key => $var) {

if($key > 0) {
$dimensions = imagettfbbox($font_size, $angle, $font_file, $array_of_letters[$key - 1]);
$x += abs($dimensions[4] - $dimensions[0]) + $letter_spacing;
}

// If the next letter is empty, we just move forward to the next letter
if($var !== " ") {
imagettftext($this->image, $font_size, $angle, $x, $y, current($color_arr), $font_file, $var);

// #000 is 0, black will reset the array so we write it this way
if(next($color_arr) === false) {
reset($color_arr);
}
}
}

} else {
imagettftext($this->image, $font_size, $angle, $x, $y, $color_arr[0], $font_file, $text);
}
}

return $this;
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