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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* Test case:
* - Source image: 200x50
* - Target: max size is 100x100
*/
function testNormalImage() {
var source = new Image();
source.width = 200;
source.height = 50;
var options = {
maxWidth: 100,
maxHeight: 100,
orientation: ImageOrientation.fromDriveOrientation(0)
};
var result = ImageLoader.calculateCopyParameters(source, options);
assertEquals(0, result.source.x);
assertEquals(0, result.source.y);
assertEquals(200, result.source.width);
assertEquals(50, result.source.height);
assertEquals(0, result.target.x);
assertEquals(0, result.target.y);
assertEquals(100, result.target.width);
assertEquals(25, result.target.height);
assertEquals(100, result.canvas.width);
assertEquals(25, result.canvas.height);
};
/**
* Test case:
* - Source image: 50x200 90 deg clock-wise rotated image.
* - Target: max size is 100x100
*/
function testRotatedImage() {
var source = new Image();
source.width = 50;
source.height = 200;
var options = {
maxWidth: 100,
maxHeight: 100,
orientation: ImageOrientation.fromDriveOrientation(1)
};
var result = ImageLoader.calculateCopyParameters(source, options);
assertEquals(0, result.source.x);
assertEquals(0, result.source.y);
assertEquals(50, result.source.width);
assertEquals(200, result.source.height);
assertEquals(0, result.target.x);
assertEquals(0, result.target.y);
assertEquals(25, result.target.width);
assertEquals(100, result.target.height);
assertEquals(100, result.canvas.width);
assertEquals(25, result.canvas.height);
}
/**
* Test case:
* - Source image: 800x100
* - Target: 50x50 cropped image.
*/
function testCroppedImage() {
var source = new Image();
source.width = 800;
source.height = 100;
var options = {
width: 50,
height: 50,
crop: true,
orientation: ImageOrientation.fromDriveOrientation(0)
};
var result = ImageLoader.calculateCopyParameters(source, options);
assertEquals(350, result.source.x);
assertEquals(0, result.source.y);
assertEquals(100, result.source.width);
assertEquals(100, result.source.height);
assertEquals(0, result.target.x);
assertEquals(0, result.target.y);
assertEquals(50, result.target.width);
assertEquals(50, result.target.height);
assertEquals(50, result.canvas.width);
assertEquals(50, result.canvas.height);
}
/**
* Test case:
* - Source image: 200x25
* - Target: 50x50 cropped image.
*/
function testCroppedImageWithResize() {
var source = new Image();
source.width = 200;
source.height = 25;
var options = {
width: 50,
height: 50,
crop: true,
orientation: ImageOrientation.fromDriveOrientation(0)
};
var result = ImageLoader.calculateCopyParameters(source, options);
assertEquals(87, result.source.x);
assertEquals(0, result.source.y);
assertEquals(25, result.source.width);
assertEquals(25, result.source.height);
assertEquals(0, result.target.x);
assertEquals(0, result.target.y);
assertEquals(50, result.target.width);
assertEquals(50, result.target.height);
assertEquals(50, result.canvas.width);
assertEquals(50, result.canvas.height);
}
/**
* Test case:
* - Source image: 20x10
* - Target: 50x50 cropped image.
*/
function testCroppedTinyImage() {
var source = new Image();
source.width = 20;
source.height = 10;
var options = {
width: 50,
height: 50,
crop: true,
orientation: ImageOrientation.fromDriveOrientation(0)
};
var result = ImageLoader.calculateCopyParameters(source, options);
assertEquals(5, result.source.x);
assertEquals(0, result.source.y);
assertEquals(10, result.source.width);
assertEquals(10, result.source.height);
assertEquals(0, result.target.x);
assertEquals(0, result.target.y);
assertEquals(50, result.target.width);
assertEquals(50, result.target.height);
assertEquals(50, result.canvas.width);
assertEquals(50, result.canvas.height);
}
/**
* Test case:
* - Source image: 100x400 90 degree clock-wise rotated.
* - Target: 50x50 cropped image
*/
function testCroppedRotatedImage() {
var source = new Image();
source.width = 100;
source.height = 400;
var options = {
width: 50,
height: 50,
crop: true,
orientation: ImageOrientation.fromDriveOrientation(1)
};
var result = ImageLoader.calculateCopyParameters(source, options);
assertEquals(0, result.source.x);
assertEquals(150, result.source.y);
assertEquals(100, result.source.width);
assertEquals(100, result.source.height);
assertEquals(0, result.target.x);
assertEquals(0, result.target.y);
assertEquals(50, result.target.width);
assertEquals(50, result.target.height);
assertEquals(50, result.canvas.width);
assertEquals(50, result.canvas.height);
}
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