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Center multiline text #10

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Center multiline text #10

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12 changes: 7 additions & 5 deletions code.php
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Original file line number Diff line number Diff line change
Expand Up @@ -177,7 +177,7 @@ function( $matches ) {
},
$_GET['text']
);
$lines = substr_count( $_GET['text'], '|' );
$lines = substr_count( $_GET['text'], '|' ) + 1;
$text = preg_replace( '/\|/i', "\n", $_GET['text'] );
} else {
$lines = 1;
Expand All @@ -186,19 +186,21 @@ function( $matches ) {
$text = $width." × ".$height;
}

// Michael Smith: Added line_spacing variable for caculating center height and fontsize on multiline text
$line_spacing = $lines > 1 ? 1.3 : 0.75;
// Ric Ewing: I modified this to behave better with long or narrow images and condensed the resize code to a single line
$fontsize = max( min( $width / strlen($text) * 1.15, $height * 0.5 ), 5 );
$fontsize = max( min( $width / strlen($text) * 1.15, $height * 0.5 / $lines / $line_spacing ), 5 );
// Pass these variable to a function to calculate the position of the bounding box
$textBox = imagettfbbox_t($fontsize, $text_angle, $font, $text);
// Calculate the width of the text box by subtracting the upper right "X" position with the lower left "X" position
$textWidth = ceil( ( $textBox[4] - $textBox[1] ) * 1.07 );
$textWidth = ceil( ( $textBox[4] - $textBox[0] ) * 1.07 );
// Calculate the height of the text box by adding the absolute value of the upper left "Y" position with the lower left "Y" position
$textHeight = ceil( ( abs( $textBox[7] ) + abs( $textBox[1] ) ) * 1 );
$textHeight = ceil( abs( $textBox[7] ) + abs( $textBox[1] ) * 1 );

//Determine where to set the X position of the text box so it is centered
$textX = ceil( ( $width - $textWidth ) / 2 );
//Determine where to set the Y position of the text box so it is centered
$textY = ceil( ( $height - $textHeight ) / 2 + $textHeight );
$textY = ceil( ( $height - $textHeight ) / 2 + ($textHeight / ($lines * $line_spacing * 1.3)) );

//Create the rectangle with the specified background color
imageFilledRectangle( $img, 0, 0, $width, $height, $bg_color );
Expand Down