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Added parametric zoom on QChart....
Added parametric zoom on QChart. Signed-off-by: jeandet <alexis.jeandet@member.fsf.org>

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tst_valueaxis_1_2.qml
125 lines | 4.0 KiB | application/x-qml | QmlLexer
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.0
import QtTest 1.0
import QtCharts 1.2
Rectangle {
width: 400
height: 300
TestCase {
id: tc1
name: "tst_qml-qtquicktest ValueAxis 1.2"
when: windowShown
// test functions are run in alphabetical order, the name has 'a' so that it
// will be the first function to execute.
function test_a_properties() {
// Default properties
verify(axisX.min < 0, "AxisX min");
verify(axisX.max > 0, "AxisX max");
verify(axisY.min < 0, "AxisY min");
verify(axisY.max > 0, "AxisY max");
verify(axisX.tickCount == 5, "AxisX tick count");
verify(axisY.tickCount == 5, "AxisY tick count");
verify(axisX.labelFormat == "", "label format");
// Modify properties
axisX.tickCount = 3;
verify(axisX.tickCount == 3, "set tick count");
}
function test_functions() {
// Set the axis ranges to not "nice" ones...
var min = 0.032456456;
var max = 10.67845634;
axisX.min = min;
axisX.max = max;
axisY.min = min;
axisY.max = max;
// ...And then apply nice numbers and verify the range was changed
axisX.applyNiceNumbers();
axisY.applyNiceNumbers();
verify(axisX.min != min);
verify(axisX.max != max);
verify(axisY.min != min);
verify(axisY.max != max);
}
function test_signals() {
minChangedSpy.clear();
maxChangedSpy.clear();
axisX.min = 2;
compare(minChangedSpy.count, 1, "onMinChanged");
compare(maxChangedSpy.count, 0, "onMaxChanged");
axisX.max = 8;
compare(minChangedSpy.count, 1, "onMinChanged");
compare(maxChangedSpy.count, 1, "onMaxChanged");
// restore original values
axisX.min = 0;
axisX.max = 10;
compare(minChangedSpy.count, 2, "onMinChanged");
compare(maxChangedSpy.count, 2, "onMaxChanged");
}
}
ChartView {
id: chartView
anchors.fill: parent
LineSeries {
id: lineSeries1
axisX: ValueAxis {
id: axisX
}
axisY: ValueAxis {
id: axisY
}
XYPoint { x: -1; y: -1 }
XYPoint { x: 0; y: 0 }
XYPoint { x: 5; y: 5 }
}
SignalSpy {
id: minChangedSpy
target: axisX
signalName: "minChanged"
}
SignalSpy {
id: maxChangedSpy
target: axisX
signalName: "maxChanged"
}
}
}