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Add support for stand-alone, pre-resize, and post-resize extraction with a topOffset, leftOffset, width, and height.

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This commit is contained in:
Brandon Aaron
2014-10-07 09:56:55 -04:00
parent 6190ca4307
commit 83b72a1ede
4 changed files with 139 additions and 5 deletions
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63
tests/unit.js
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@@ -563,6 +563,69 @@ async.series([
done();
});
},
// Extract jpg
function(done) {
sharp(inputJpg).extract(2,2,20,20).toFile(path.join(fixturesPath, 'output.extract.jpg'), function(err, info) {
if (err) throw err;
assert.strictEqual(20, info.width);
assert.strictEqual(20, info.height);
done();
});
},
// Extract png
function(done) {
sharp(inputPng).extract(300,200,400,200).toFile(path.join(fixturesPath, 'output.extract.png'), function(err, info) {
if (err) throw err;
assert.strictEqual(400, info.width);
assert.strictEqual(200, info.height);
done();
});
},
// Extract webp
function(done) {
sharp(inputWebP).extract(50, 100, 125, 200).toFile(path.join(fixturesPath, 'output.extract.webp'), function(err, info) {
if (err) throw err;
assert.strictEqual(125, info.width);
assert.strictEqual(200, info.height);
done();
});
},
// Extract tiff
function(done) {
sharp(inputTiff).extract(63, 34, 341, 529).toFile(path.join(fixturesPath, 'output.extract.tiff'), function(err, info) {
if (err) throw err;
assert.strictEqual(341, info.width);
assert.strictEqual(529, info.height);
done();
});
},
// Extract before resize
function(done) {
sharp(inputJpg).extract(10, 10, 10, 500, 500).resize(100, 100).toFile(path.join(fixturesPath, 'output.extract.resize.jpg'), function(err, info) {
if (err) throw err;
assert.strictEqual(100, info.width);
assert.strictEqual(100, info.height);
done();
});
},
// Extract after resize and crop
function(done) {
sharp(inputJpg).resize(500, 500).crop(sharp.gravity.north).extract(10, 10, 100, 100).toFile(path.join(fixturesPath, 'output.resize.crop.extract.jpg'), function(err, info) {
if (err) throw err;
assert.strictEqual(100, info.width);
assert.strictEqual(100, info.height);
done();
});
},
// Extract before and after resize and crop
function(done) {
sharp(inputJpg).extract(0, 0, 700, 700).resize(500, 500).crop(sharp.gravity.north).extract(10, 10, 100, 100).toFile(path.join(fixturesPath, 'output.extract.resize.crop.extract.jpg'), function(err, info) {
if (err) throw err;
assert.strictEqual(100, info.width);
assert.strictEqual(100, info.height);
done();
});
},
// Keeps Metadata after a resize
function(done) {
sharp(inputJpgWithExif).resize(320, 240).withMetadata().toBuffer(function(err, buffer) {