1 | // Copyright (C) 2016 The Qt Company Ltd. |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
3 | |
4 | #include <private/charttitle_p.h> |
5 | #include <private/chartpresenter_p.h> |
6 | #include <QtGui/QFont> |
7 | #include <QtGui/QFontMetrics> |
8 | #include <QtCore/QDebug> |
9 | #include <QtGui/QTextDocument> |
10 | |
11 | QT_BEGIN_NAMESPACE |
12 | |
13 | ChartTitle::ChartTitle(QGraphicsItem *parent) |
14 | : QGraphicsTextItem(parent) |
15 | { |
16 | document()->setDocumentMargin(ChartPresenter::textMargin()); |
17 | setAcceptedMouseButtons({}); |
18 | } |
19 | |
20 | ChartTitle::~ChartTitle() |
21 | { |
22 | |
23 | } |
24 | |
25 | void ChartTitle::setText(const QString &text) |
26 | { |
27 | m_text = text; |
28 | } |
29 | |
30 | QString ChartTitle::text() const |
31 | { |
32 | return m_text; |
33 | } |
34 | |
35 | void ChartTitle::setGeometry(const QRectF &rect) |
36 | { |
37 | QRectF truncatedRect; |
38 | if (m_text.isEmpty()) { |
39 | QGraphicsTextItem::setHtml(m_text); |
40 | QGraphicsTextItem::setTextWidth(0.0); |
41 | } else { |
42 | QGraphicsTextItem::setHtml(ChartPresenter::truncatedText(font: font(), text: m_text, angle: qreal(0.0), |
43 | maxWidth: rect.width(), maxHeight: rect.height(), |
44 | boundingRect&: truncatedRect)); |
45 | QGraphicsTextItem::setTextWidth(truncatedRect.width()); |
46 | } |
47 | setPos(rect.topLeft()); |
48 | } |
49 | |
50 | |
51 | QSizeF ChartTitle::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const |
52 | { |
53 | Q_UNUSED(constraint); |
54 | QSizeF sh; |
55 | |
56 | switch (which) { |
57 | case Qt::MinimumSize: { |
58 | QRectF titleRect = ChartPresenter::textBoundingRect(font: font(), QStringLiteral("..." )); |
59 | sh = QSizeF(titleRect.width(), titleRect.height()); |
60 | break; |
61 | } |
62 | case Qt::PreferredSize: |
63 | case Qt::MaximumSize: { |
64 | QRectF titleRect = ChartPresenter::textBoundingRect(font: font(), text: m_text); |
65 | sh = QSizeF(titleRect.width(), titleRect.height()); |
66 | break; |
67 | } |
68 | case Qt::MinimumDescent: { |
69 | QFontMetrics fn(font()); |
70 | sh = QSizeF(0, fn.descent()); |
71 | break; |
72 | } |
73 | default: |
74 | break; |
75 | } |
76 | |
77 | return sh; |
78 | } |
79 | |
80 | QT_END_NAMESPACE |
81 | |