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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.2
import QtTest 1.0
import QtQuick.Layouts 1.1
Item {
id: container
width: 200
height: 200
TestCase {
id: testCase
name: "Tests_Baselines"
when: windowShown
width: 200
height: 200
function test_baselineOffset_data()
{
return [
{ tag: "Text", controlSpec: "Text { text: \"LLLLLLLLLLLLLLL\"}"},
{ tag: "Button", controlSpec: "Button { text: \"LLLLLLLLLLLLLLL\"}"},
//{ tag: "SpinBox", controlSpec: "SpinBox { implicitWidth: 80; prefix:\"LLLLLLLLLLLLLL\"; value: 2}"},
//{ tag: "CheckBox", controlSpec: "CheckBox { text: \"LLLLLLLLLLLLLL\" }"},
];
}
function test_baselineOffset(data)
{
skip("Started to fail on Ubuntu 10.04 around 22/07/2015. To be fixed as soon as we can check on the VM.")
var item = Qt.createQmlObject('import QtQuick 2.1;import QtQuick.Controls 1.1;' + data.controlSpec,
container, '')
waitForRendering(item)
var img = grabImage(item);
// the image object returned by grabImage does not have width and height properties,
// but its dimensions should be the same as the item it was grabbed from
var imgWidth = item.width
var imgHeight = item.height
var lineIntensities = []
var lineSum = 0;
for (var y = 0; y < imgHeight; ++y) {
var lineIntensity = 0
for (var x = 0; x < imgWidth; ++x)
lineIntensity += img.red(x,y) + img.green(x,y) + img.blue(x,y)
lineIntensities.push(lineIntensity)
lineSum += lineIntensity
}
var lineAverage = lineSum / imgHeight;
// now that we have the whole controls _average_ intensity, we assume that the lineIntensity
// with the biggest difference in intensity from the lineAverage is where the baseline is.
var visualBaselineOffset = -1
var maxDifferenceFromAverage = 0;
for (var y = 0; y < lineIntensities.length; ++y) {
var differenceFromAverage = Math.abs(lineAverage - lineIntensities[y])
if (differenceFromAverage > maxDifferenceFromAverage) {
maxDifferenceFromAverage = differenceFromAverage
visualBaselineOffset = y;
}
}
// Allow that the visual baseline is one off
// This is mainly because baselines of text are actually one pixel *below* the text baseline
// In addition it is an acceptable error
var threshold = (Qt.platform.os === "osx" ? 2 : 1) // its only 2 on osx 10.7, but we cannot determine the os version from here.
fuzzyCompare(visualBaselineOffset, item.baselineOffset, threshold)
item.destroy();
}
}
}
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