1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "mainwindow.h"
#include <QUrl>
#include <QDesktopServices>
#include <QScreen>
#include <QLabel>
#include <QLayout>
MainWindow::MainWindow(QWidget *parent)
: QWidget(parent),
m_titleLabel(new QLabel(this)),
m_infoLabel(new QLabel(tr("Enable NFC"), this)),
m_uriLabel(new QLabel(this)),
m_landscapeIconLabel(new QLabel(this)),
m_portraitIconLabel(new QLabel(this))
{
m_titleLabel->setAlignment(Qt::AlignCenter);
m_infoLabel->setAlignment(Qt::AlignCenter);
m_uriLabel->setAlignment(Qt::AlignCenter);
m_landscapeIconLabel->setAlignment(Qt::AlignCenter);
m_portraitIconLabel->setAlignment(Qt::AlignCenter);
QFont f = m_titleLabel->font();
f.setBold(true);
m_titleLabel->setFont(f);
QVBoxLayout *verticalLayout = new QVBoxLayout;
verticalLayout->addWidget(m_titleLabel);
verticalLayout->addWidget(m_infoLabel);
verticalLayout->addWidget(m_portraitIconLabel);
verticalLayout->addWidget(m_uriLabel);
QHBoxLayout *horizontalLayout = new QHBoxLayout;
horizontalLayout->addWidget(m_landscapeIconLabel);
horizontalLayout->addLayout(verticalLayout);
horizontalLayout->setSpacing(0);
setLayout(horizontalLayout);
handleScreenChange();
}
MainWindow::~MainWindow()
{
}
void MainWindow::displayAnnotatedUrl(const QUrl &url, const QString &title, const QPixmap &pixmap)
{
m_infoLabel->setHidden(true);
m_uriLabel->setText(url.toString());
m_titleLabel->setText(title);
m_pixmap = pixmap;
updateWidgetLayout(m_screen->orientation());
}
void MainWindow::nfcStateChanged(bool enabled)
{
const QString text = enabled ? "Touch a tag" : "Enable NFC";
m_infoLabel->setText(text);
}
void MainWindow::showTagError(const QString &message)
{
m_uriLabel->clear();
m_titleLabel->clear();
m_pixmap = QPixmap();
m_landscapeIconLabel->setVisible(false);
m_portraitIconLabel->setVisible(false);
m_infoLabel->setHidden(false);
m_infoLabel->setText(message);
}
void MainWindow::mouseReleaseEvent(QMouseEvent * /*event*/)
{
QDesktopServices::openUrl(QUrl(m_uriLabel->text()));
}
void MainWindow::moveEvent(QMoveEvent * /*event*/)
{
if (screen() != m_screen)
handleScreenChange();
}
void MainWindow::updateWidgetLayout(Qt::ScreenOrientation orientation)
{
m_landscapeIconLabel->setVisible(false);
m_portraitIconLabel->setVisible(false);
if (!m_pixmap.isNull()) {
const bool landscapeMode = (orientation == Qt::LandscapeOrientation)
|| (orientation == Qt::InvertedLandscapeOrientation);
QLabel *imageLabel = landscapeMode ? m_landscapeIconLabel : m_portraitIconLabel;
imageLabel->setVisible(true);
if (m_pixmap.width() > imageLabel->width() || m_pixmap.height() > imageLabel->height())
imageLabel->setPixmap(m_pixmap.scaled(imageLabel->size(), Qt::KeepAspectRatio));
else
imageLabel->setPixmap(m_pixmap);
}
}
void MainWindow::handleScreenChange()
{
if (m_screen)
disconnect(m_screen, &QScreen::orientationChanged, this, &MainWindow::updateWidgetLayout);
m_screen = screen();
connect(m_screen, &QScreen::orientationChanged, this, &MainWindow::updateWidgetLayout);
updateWidgetLayout(m_screen->orientation());
}
|
