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3** Copyright (C) 2018 The Qt Company Ltd.
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6** This file is part of the Qt Charts module of the Qt Toolkit.
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29#include "datetimeaxislabel_p.h"
30
31#include <QtCore/qdatetime.h>
32
33QT_CHARTS_BEGIN_NAMESPACE
34
35DateTimeAxisLabel::DateTimeAxisLabel(QGraphicsItem *parent) :
36 EditableAxisLabel(parent)
37{
38
39}
40
41void DateTimeAxisLabel::finishEditing()
42{
43 QDateTime oldDateTime = m_dateTime;
44 QDateTime newDateTime = QDateTime::fromString(s: document()->toPlainText(), format: m_format);
45 if (newDateTime.isValid() && newDateTime != m_dateTime) {
46 m_dateTime = newDateTime;
47 emit dateTimeChanged(oldDateTime, newDateTime);
48 } else {
49 document()->setHtml(m_htmlBeforeEdit);
50 }
51}
52
53QDateTime DateTimeAxisLabel::value() const
54{
55 return m_dateTime;
56}
57
58void DateTimeAxisLabel::setValue(const QDateTime &value)
59{
60 setTextInteractionFlags(Qt::NoTextInteraction);
61 clearFocus();
62 m_dateTime = value;
63}
64
65void DateTimeAxisLabel::resetBeforeEditValue()
66{
67 m_dateTime = m_dateTimeBeforeEdit;
68}
69
70void DateTimeAxisLabel::setFormat(const QString &format)
71{
72 m_format = format;
73 // Labels should be edited as a single line regardless to their
74 // format because enter triggers applying the current text.
75 m_format.replace(before: QChar::fromLatin1(c: '\n'), after: QChar::fromLatin1(c: ' '));
76}
77
78void DateTimeAxisLabel::setInitialEditValue()
79{
80 m_dateTimeBeforeEdit = m_dateTime;
81 setHtml(m_dateTime.toString(format: m_format));
82}
83
84void DateTimeAxisLabel::keyPressEvent(QKeyEvent *event)
85{
86 if (isEditEndingKeyPress(event)) {
87 // prevent further event processing with a return
88 // because the focusOutEvent could have triggered
89 // a range change which might have invalidated the current label
90 return;
91 }
92
93 QGraphicsTextItem::keyPressEvent(event);
94}
95
96QT_CHARTS_END_NAMESPACE
97
98#include "moc_datetimeaxislabel_p.cpp"
99

source code of qtcharts/src/charts/axis/datetimeaxis/datetimeaxislabel.cpp