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50
51#include <QtWidgets>
52
53#include "droparea.h"
54#include "dropsitewindow.h"
55
56//! [constructor part1]
57DropSiteWindow::DropSiteWindow()
58{
59 abstractLabel = new QLabel(tr(s: "This example accepts drags from other "
60 "applications and displays the MIME types "
61 "provided by the drag object."));
62 abstractLabel->setWordWrap(true);
63 abstractLabel->adjustSize();
64//! [constructor part1]
65
66//! [constructor part2]
67 dropArea = new DropArea;
68 connect(sender: dropArea, signal: &DropArea::changed,
69 receiver: this, slot: &DropSiteWindow::updateFormatsTable);
70//! [constructor part2]
71
72//! [constructor part3]
73 QStringList labels;
74 labels << tr(s: "Format") << tr(s: "Content");
75
76 formatsTable = new QTableWidget;
77 formatsTable->setColumnCount(2);
78 formatsTable->setEditTriggers(QAbstractItemView::NoEditTriggers);
79 formatsTable->setHorizontalHeaderLabels(labels);
80 formatsTable->horizontalHeader()->setStretchLastSection(true);
81//! [constructor part3]
82
83//! [constructor part4]
84 clearButton = new QPushButton(tr(s: "Clear"));
85 copyButton = new QPushButton(tr(s: "Copy"));
86 quitButton = new QPushButton(tr(s: "Quit"));
87
88 buttonBox = new QDialogButtonBox;
89 buttonBox->addButton(button: clearButton, role: QDialogButtonBox::ActionRole);
90 buttonBox->addButton(button: copyButton, role: QDialogButtonBox::ActionRole);
91#if !QT_CONFIG(clipboard)
92 copyButton->setVisible(false);
93#endif
94
95 buttonBox->addButton(button: quitButton, role: QDialogButtonBox::RejectRole);
96
97 connect(sender: quitButton, signal: &QAbstractButton::clicked, receiver: this, slot: &QWidget::close);
98 connect(sender: clearButton, signal: &QAbstractButton::clicked, receiver: dropArea, slot: &DropArea::clear);
99 connect(sender: copyButton, signal: &QAbstractButton::clicked, receiver: this, slot: &DropSiteWindow::copy);
100//! [constructor part4]
101
102//! [constructor part5]
103 QVBoxLayout *mainLayout = new QVBoxLayout(this);
104 mainLayout->addWidget(abstractLabel);
105 mainLayout->addWidget(dropArea);
106 mainLayout->addWidget(formatsTable);
107 mainLayout->addWidget(buttonBox);
108
109 setWindowTitle(tr(s: "Drop Site"));
110 setMinimumSize(minw: 350, minh: 500);
111}
112//! [constructor part5]
113
114//! [updateFormatsTable() part1]
115void DropSiteWindow::updateFormatsTable(const QMimeData *mimeData)
116{
117 formatsTable->setRowCount(0);
118 copyButton->setEnabled(false);
119 if (!mimeData)
120 return;
121//! [updateFormatsTable() part1]
122
123//! [updateFormatsTable() part2]
124 const QStringList formats = mimeData->formats();
125 for (const QString &format : formats) {
126 QTableWidgetItem *formatItem = new QTableWidgetItem(format);
127 formatItem->setFlags(Qt::ItemIsEnabled);
128 formatItem->setTextAlignment(Qt::AlignTop | Qt::AlignLeft);
129//! [updateFormatsTable() part2]
130
131//! [updateFormatsTable() part3]
132 QString text;
133 if (format == QLatin1String("text/plain")) {
134 text = mimeData->text().simplified();
135 } else if (format == QLatin1String("text/markdown")) {
136 text = QString::fromUtf8(str: mimeData->data(mimetype: QLatin1String("text/markdown")));
137 } else if (format == QLatin1String("text/html")) {
138 text = mimeData->html().simplified();
139 } else if (format == QLatin1String("text/uri-list")) {
140 QList<QUrl> urlList = mimeData->urls();
141 for (int i = 0; i < urlList.size() && i < 32; ++i)
142 text.append(s: urlList.at(i).toString() + QLatin1Char(' '));
143 } else {
144 QByteArray data = mimeData->data(mimetype: format);
145 for (int i = 0; i < data.size() && i < 32; ++i)
146 text.append(QStringLiteral("%1 ").arg(a: uchar(data[i]), fieldWidth: 2, base: 16, fillChar: QLatin1Char('0')).toUpper());
147 }
148//! [updateFormatsTable() part3]
149
150//! [updateFormatsTable() part4]
151 int row = formatsTable->rowCount();
152 formatsTable->insertRow(row);
153 formatsTable->setItem(row, column: 0, item: new QTableWidgetItem(format));
154 formatsTable->setItem(row, column: 1, item: new QTableWidgetItem(text));
155 }
156
157 formatsTable->resizeColumnToContents(column: 0);
158#if QT_CONFIG(clipboard)
159 copyButton->setEnabled(formatsTable->rowCount() > 0);
160#endif
161}
162//! [updateFormatsTable() part4]
163
164void DropSiteWindow::copy()
165{
166#if QT_CONFIG(clipboard)
167 QString text;
168 for (int row = 0, rowCount = formatsTable->rowCount(); row < rowCount; ++row)
169 text += formatsTable->item(row, column: 0)->text() + ": " + formatsTable->item(row, column: 1)->text() + '\n';
170 QGuiApplication::clipboard()->setText(text);
171#endif
172}
173

source code of qtbase/examples/widgets/draganddrop/dropsite/dropsitewindow.cpp