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fix left-shifted/misaligned bounding-box + wrong kerning in imagettfbbox/imageftbbox #1845
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| --TEST-- | ||
| Bug #53504 imagettfbbox/imageftbbox gives incorrect values for bounding box | ||
| --SKIPIF-- | ||
| <?php | ||
| if(!extension_loaded('gd')){ die('skip gd extension not available'); } | ||
| if(!function_exists('imageftbbox')) die('skip imageftbbox() not available'); | ||
|
|
||
| include dirname(__FILE__) . '/func.inc'; | ||
| if(version_compare(get_freetype_version(), '2.4.10') == -1) die('skip for freetype < 2.4.10'); | ||
| ?> | ||
| --FILE-- | ||
| <?php | ||
| $cwd = dirname(__FILE__); | ||
| $font = "$cwd/Tuffy.ttf"; | ||
|
|
||
| $g = imagecreate(800, 800); | ||
| $bgnd = imagecolorallocate($g, 255, 255, 255); | ||
| $black = imagecolorallocate($g, 0, 0, 0); | ||
| $red = imagecolorallocate($g, 255, 0, 0); | ||
| $blue = imagecolorallocate($g, 0, 0, 255); | ||
|
|
||
| $tests = [ | ||
| // Kerning examples (unfortunately not available in "Tuffy" test font): | ||
| ['fontSize' => 50, 'angle' => 0, 'x' => 20, 'y' => 70, 'text' => 'AV Teg'], | ||
| ['fontSize' => 50, 'angle' => 90, 'x' => 70, 'y' => 350, 'text' => 'AV Teg'], | ||
| ['fontSize' => 50, 'angle' => 40, 'x' => 130, 'y' => 280, 'text' => 'AV Teg'], | ||
|
|
||
| // Shift-Test: | ||
| ['fontSize' => 100, 'angle' => 0, 'x' => 350, 'y' => 110, 'text' => 'H-Shift'], | ||
|
|
||
| // Small/single chars: | ||
| ['fontSize' => 100, 'angle' => 0, 'x' => 350, 'y' => 220, 'text' => '-'], | ||
| ['fontSize' => 100, 'angle' => 0, 'x' => 430, 'y' => 220, 'text' => ','], | ||
| ['fontSize' => 100, 'angle' => 0, 'x' => 510, 'y' => 220, 'text' => '.'], | ||
| ['fontSize' => 100, 'angle' => 0, 'x' => 590, 'y' => 220, 'text' => '|'], | ||
| ['fontSize' => 100, 'angle' => 0, 'x' => 670, 'y' => 220, 'text' => 'g'], | ||
|
|
||
| // Multi-Line + rotation: | ||
| ['fontSize' => 30, 'angle' => 0, 'x' => 20, 'y' => 400, 'text' => "Multi\nLine\nTest"], | ||
| ['fontSize' => 30, 'angle' => 40, 'x' => 150, 'y' => 420, 'text' => "Multi\nLine\nTest"], | ||
| ['fontSize' => 30, 'angle' => 90, 'x' => 250, 'y' => 340, 'text' => "Multi\nLine\nTest"], | ||
|
|
||
| // Some edge case glyphs: | ||
| ['fontSize' => 50, 'angle' => 90, 'x' => 70, 'y' => 750, 'text' => "iiiiiiiiiiii"], | ||
| ['fontSize' => 50, 'angle' => 90, 'x' => 150, 'y' => 750, 'text' => "~~~~~~~"], | ||
| ['fontSize' => 50, 'angle' => 50, 'x' => 210, 'y' => 750, 'text' => "iiiiiiiiiiii"], | ||
| ['fontSize' => 50, 'angle' => 50, 'x' => 300, 'y' => 750, 'text' => "~~~~~~~"], | ||
| ['fontSize' => 50, 'angle' => 0, 'x' => 430, 'y' => 650, 'text' => "iiiiiiiiiiii"], | ||
| ['fontSize' => 50, 'angle' => 0, 'x' => 430, 'y' => 750, 'text' => "~~~~~~~"], | ||
|
|
||
| // "Big" test: | ||
| ['fontSize' => 200, 'angle' => 0, 'x' => 400, 'y' => 500, 'text' => "Big"], | ||
| ]; | ||
|
|
||
| foreach ($tests as $test) { | ||
| $bbox = imageftbbox($test['fontSize'], $test['angle'], $font, $test['text']); | ||
| vprintf("(%d, %d), (%d, %d), (%d, %d), (%d, %d)\n", $bbox); | ||
|
|
||
| $bboxDrawn = imagefttext($g, $test['fontSize'], $test['angle'], | ||
| $test['x'], $test['y'], $black, $font, $test['text']); | ||
|
|
||
| // check if both bboxes match when adding x/y offset: | ||
| for ($i = 0; $i < count($bbox); $i += 2) { | ||
| if ($bbox[$i] + $test['x'] !== $bboxDrawn[$i]) echo "imageftbbox and imagefttext differ!\n"; | ||
| if ($bbox[$i + 1] + $test['y'] !== $bboxDrawn[$i + 1]) echo "imageftbbox and imagefttext differ!\n"; | ||
| } | ||
|
|
||
| // draw bounding box: | ||
| imagepolygon($g, $bboxDrawn, 4, $red); | ||
|
|
||
| // draw baseline: | ||
| $width = sqrt(pow($bboxDrawn[2] - $bboxDrawn[0], 2) + pow($bboxDrawn[3] - $bboxDrawn[1], 2)); | ||
| imageline($g, $test['x'], $test['y'], | ||
| $test['x'] + $width * cos(deg2rad($test['angle'])), | ||
| $test['y'] - $width * sin(deg2rad($test['angle'])), $blue); | ||
| } | ||
|
|
||
| imagepng($g, "$cwd/bug53504.png"); | ||
| ?> | ||
| --CLEAN-- | ||
| <?php @unlink(dirname(__FILE__) . '/bug53504.png'); ?> | ||
| --EXPECTF-- | ||
| (2, 15), (208, 15), (208, -48), (2, -48) | ||
| (15, -1), (15, -208), (-48, -208), (-48, -2) | ||
| (11, 11), (169, -122), (129, -171), (-30, -39) | ||
| (8, 2), (385, 2), (385, -97), (8, -97) | ||
| (7, -37), (51, -37), (51, -46), (7, -46) | ||
| (7, 15), (21, 15), (21, -13), (7, -13) | ||
| (7, 1), (21, 1), (21, -13), (7, -13) | ||
| (8, 0), (17, 0), (17, -95), (8, -95) | ||
| (5, 29), (60, 29), (60, -72), (5, -72) | ||
| (2, 107), (80, 107), (80, -29), (2, -29) | ||
| (70, 81), (131, 31), (43, -74), (-18, -24) | ||
| (107, -1), (107, -80), (-29, -80), (-29, -2) | ||
| (0, -4), (0, -165), (-47, -165), (-47, -4) | ||
| (-19, -2), (-18, -167), (-29, -167), (-29, -2) | ||
| (3, -3), (107, -127), (70, -157), (-34, -33) | ||
| (-13, -13), (93, -141), (85, -147), (-21, -20) | ||
| (4, 0), (165, 0), (165, -47), (4, -47) | ||
| (2, -19), (167, -19), (167, -29), (2, -29) | ||
| (16, 59), (330, 59), (330, -190), (16, -190) | ||
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Minor issue: this doesn't need to be EXPECTF; EXPECT would be sufficient.