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wireshark/ui/qt/show_packet_bytes_dialog.cpp

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/* show_packet_bytes_dialog.cpp
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "show_packet_bytes_dialog.h"
#include <ui_show_packet_bytes_dialog.h>
#include "main_window.h"
#include "wireshark_application.h"
#include "ui/qt/widgets/wireshark_file_dialog.h"
#include "epan/charsets.h"
#include "wsutil/utf8_entities.h"
#include <QAction>
#include <QImage>
#include <QKeyEvent>
#include <QMenu>
#include <QPrintDialog>
#include <QPrinter>
#include <QTextStream>
// To do:
// - Add show as custom protocol in a Packet Details view
// - Use ByteViewText to ShowAsHexDump and supplementary view for custom protocol
// - Handle large data blocks
ShowPacketBytesDialog::ShowPacketBytesDialog(QWidget &parent, CaptureFile &cf) :
WiresharkDialog(parent, cf),
ui(new Ui::ShowPacketBytesDialog),
finfo_(cf.capFile()->finfo_selected),
decode_as_(DecodeAsNone),
show_as_(ShowAsASCII),
use_regex_find_(false)
{
ui->setupUi(this);
loadGeometry(parent.width() * 2 / 3, parent.height() * 3 / 4);
QString field_name = QString("%1 (%2)").arg(finfo_->hfinfo->name, finfo_->hfinfo->abbrev);
setWindowSubtitle (field_name);
hint_label_ = tr("Frame %1, %2, %Ln byte(s).", "", finfo_->length)
.arg(cf.capFile()->current_frame->num)
.arg(field_name);
ui->tePacketBytes->installEventFilter(this);
connect(ui->tePacketBytes, SIGNAL(showSelected(int,int)), this, SLOT(showSelected(int,int)));
connect(ui->leFind, SIGNAL(useRegexFind(bool)), this, SLOT(useRegexFind(bool)));
ui->cbDecodeAs->blockSignals(true);
ui->cbDecodeAs->addItem(tr("None"), DecodeAsNone);
ui->cbDecodeAs->addItem(tr("Base64"), DecodeAsBASE64);
ui->cbDecodeAs->addItem(tr("Compressed"), DecodeAsCompressed);
ui->cbDecodeAs->addItem(tr("Quoted-Printable"), DecodeAsQuotedPrintable);
ui->cbDecodeAs->addItem(tr("ROT13"), DecodeAsROT13);
ui->cbDecodeAs->blockSignals(false);
ui->cbShowAs->blockSignals(true);
ui->cbShowAs->addItem(tr("ASCII"), ShowAsASCII);
ui->cbShowAs->addItem(tr("ASCII & Control"), ShowAsASCIIandControl);
ui->cbShowAs->addItem(tr("C Array"), ShowAsCArray);
ui->cbShowAs->addItem(tr("EBCDIC"), ShowAsEBCDIC);
ui->cbShowAs->addItem(tr("Hex Dump"), ShowAsHexDump);
ui->cbShowAs->addItem(tr("HTML"), ShowAsHTML);
ui->cbShowAs->addItem(tr("Image"), ShowAsImage);
ui->cbShowAs->addItem(tr("ISO 8859-1"), ShowAsISO8859_1);
ui->cbShowAs->addItem(tr("Raw"), ShowAsRAW);
ui->cbShowAs->addItem(tr("UTF-8"), ShowAsUTF8);
ui->cbShowAs->addItem(tr("UTF-16"), ShowAsUTF16);
ui->cbShowAs->addItem(tr("YAML"), ShowAsYAML);
ui->cbShowAs->setCurrentIndex(show_as_);
ui->cbShowAs->blockSignals(false);
ui->sbStart->setMinimum(0);
ui->sbEnd->setMaximum(finfo_->length);
print_button_ = ui->buttonBox->addButton(tr("Print"), QDialogButtonBox::ActionRole);
connect(print_button_, SIGNAL(clicked()), this, SLOT(printBytes()));
copy_button_ = ui->buttonBox->addButton(tr("Copy"), QDialogButtonBox::ActionRole);
connect(copy_button_, SIGNAL(clicked()), this, SLOT(copyBytes()));
save_as_button_ = ui->buttonBox->addButton(tr("Save as" UTF8_HORIZONTAL_ELLIPSIS), QDialogButtonBox::ActionRole);
connect(save_as_button_, SIGNAL(clicked()), this, SLOT(saveAs()));
connect(ui->buttonBox, SIGNAL(helpRequested()), this, SLOT(helpButton()));
setStartAndEnd(0, finfo_->length);
updateFieldBytes(true);
}
ShowPacketBytesDialog::~ShowPacketBytesDialog()
{
delete ui;
}
void ShowPacketBytesDialog::showSelected(int start, int end)
{
if (end == -1) {
// end set to -1 means show all packet bytes
setStartAndEnd(0, finfo_->length);
} else {
if (show_as_ == ShowAsRAW) {
start /= 2;
end = (end + 1) / 2;
}
setStartAndEnd(start_ + start, start_ + end);
}
updateFieldBytes();
}
void ShowPacketBytesDialog::setStartAndEnd(int start, int end)
{
start_ = start;
end_ = end;
ui->sbStart->blockSignals(true);
ui->sbStart->setMaximum(end_);
ui->sbStart->setValue(start_);
ui->sbStart->blockSignals(false);
ui->sbEnd->blockSignals(true);
ui->sbEnd->setMinimum(start_);
ui->sbEnd->setValue(end_);
ui->sbEnd->blockSignals(false);
updateHintLabel();
}
bool ShowPacketBytesDialog::enableShowSelected()
{
// "Show Selected" only works when showing all bytes:
// - DecodeAs must not alter the number of bytes in the buffer
// - ShowAs must show all bytes in the buffer
return (((decode_as_ == DecodeAsNone) ||
(decode_as_ == DecodeAsROT13)) &&
((show_as_ == ShowAsASCII) ||
(show_as_ == ShowAsASCIIandControl) ||
(show_as_ == ShowAsEBCDIC) ||
(show_as_ == ShowAsRAW)));
}
void ShowPacketBytesDialog::updateWidgets()
{
WiresharkDialog::updateWidgets();
}
void ShowPacketBytesDialog::updateHintLabel()
{
QString hint = hint_label_;
if (start_ > 0 || end_ < finfo_->length) {
hint.append(" <span style=\"color: red\">" +
tr("Displaying %Ln byte(s).", "", end_ - start_) +
"</span>");
}
ui->hintLabel->setText("<small><i>" + hint + "</i></small>");
}
void ShowPacketBytesDialog::on_sbStart_valueChanged(int value)
{
start_ = value;
ui->sbEnd->setMinimum(value);
updateHintLabel();
updateFieldBytes();
}
void ShowPacketBytesDialog::on_sbEnd_valueChanged(int value)
{
end_ = value;
ui->sbStart->setMaximum(value);
updateHintLabel();
updateFieldBytes();
}
void ShowPacketBytesDialog::on_cbDecodeAs_currentIndexChanged(int idx)
{
if (idx < 0) return;
decode_as_ = static_cast<DecodeAsType>(ui->cbDecodeAs->itemData(idx).toInt());
ui->tePacketBytes->setShowSelectedEnabled(enableShowSelected());
updateFieldBytes();
}
void ShowPacketBytesDialog::on_cbShowAs_currentIndexChanged(int idx)
{
if (idx < 0) return;
show_as_ = static_cast<ShowAsType>(ui->cbShowAs->itemData(idx).toInt());
ui->tePacketBytes->setShowSelectedEnabled(enableShowSelected());
ui->lFind->setEnabled(true);
ui->leFind->setEnabled(true);
ui->bFind->setEnabled(true);
print_button_->setEnabled(true);
copy_button_->setEnabled(true);
save_as_button_->setEnabled(true);
updatePacketBytes();
}
void ShowPacketBytesDialog::useRegexFind(bool use_regex)
{
use_regex_find_ = use_regex;
if (use_regex_find_)
ui->lFind->setText(tr("Regex Find:"));
else
ui->lFind->setText(tr("Find:"));
}
void ShowPacketBytesDialog::findText(bool go_back)
{
if (ui->leFind->text().isEmpty()) return;
bool found;
if (use_regex_find_) {
QRegExp regex(ui->leFind->text());
found = ui->tePacketBytes->find(regex);
} else {
found = ui->tePacketBytes->find(ui->leFind->text());
}
if (found) {
ui->tePacketBytes->setFocus();
} else if (go_back) {
ui->tePacketBytes->moveCursor(QTextCursor::Start);
findText(false);
}
}
void ShowPacketBytesDialog::printBytes()
{
#ifndef QT_NO_PRINTER
QPrinter printer(QPrinter::HighResolution);
QPrintDialog dialog(&printer, this);
if (dialog.exec() == QDialog::Accepted)
ui->tePacketBytes->print(&printer);
#endif
}
void ShowPacketBytesDialog::copyBytes()
{
switch (show_as_) {
case ShowAsASCII:
{
QByteArray ba(field_bytes_);
sanitizeBuffer(ba, true);
wsApp->clipboard()->setText(ba);
break;
}
case ShowAsASCIIandControl:
case ShowAsCArray:
case ShowAsEBCDIC:
case ShowAsHexDump:
case ShowAsISO8859_1:
case ShowAsRAW:
case ShowAsYAML:
wsApp->clipboard()->setText(ui->tePacketBytes->toPlainText());
break;
case ShowAsHTML:
wsApp->clipboard()->setText(ui->tePacketBytes->toHtml());
break;
case ShowAsImage:
wsApp->clipboard()->setImage(image_);
break;
case ShowAsUTF8:
case ShowAsUTF16:
wsApp->clipboard()->setText(ui->tePacketBytes->toPlainText().toUtf8());
break;
}
}
void ShowPacketBytesDialog::saveAs()
{
QString file_name = WiresharkFileDialog::getSaveFileName(this, wsApp->windowTitleString(tr("Save Selected Packet Bytes As" UTF8_HORIZONTAL_ELLIPSIS)));
if (file_name.isEmpty())
return;
QFile file(file_name);
file.open(QIODevice::WriteOnly);
switch (show_as_) {
case ShowAsASCII:
{
QByteArray ba(field_bytes_);
sanitizeBuffer(ba, true);
file.write(ba);
break;
}
case ShowAsASCIIandControl:
case ShowAsCArray:
case ShowAsEBCDIC:
case ShowAsHexDump:
case ShowAsISO8859_1:
case ShowAsYAML:
{
QTextStream out(&file);
out << ui->tePacketBytes->toPlainText();
break;
}
case ShowAsHTML:
{
QTextStream out(&file);
out << ui->tePacketBytes->toHtml();
break;
}
case ShowAsUTF8:
case ShowAsUTF16:
{
QTextStream out(&file);
out << ui->tePacketBytes->toPlainText().toUtf8();
break;
}
case ShowAsImage:
case ShowAsRAW:
file.write(field_bytes_);
break;
}
file.close();
}
void ShowPacketBytesDialog::helpButton()
{
wsApp->helpTopicAction(HELP_SHOW_PACKET_BYTES_DIALOG);
}
void ShowPacketBytesDialog::on_bFind_clicked()
{
findText();
}
void ShowPacketBytesDialog::on_leFind_returnPressed()
{
findText();
}
// Not sure why we have to do this manually.
void ShowPacketBytesDialog::on_buttonBox_rejected()
{
WiresharkDialog::reject();
}
// The following keyboard shortcuts should work (although
// they may not work consistently depending on focus):
// / (slash), Ctrl-F - Focus and highlight the search box
// Ctrl-G, Ctrl-N, F3 - Find next
// Should we make it so that typing any text starts searching?
bool ShowPacketBytesDialog::eventFilter(QObject *, QEvent *event)
{
if (ui->tePacketBytes->hasFocus() && event->type() == QEvent::KeyPress) {
QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
if (keyEvent->matches(QKeySequence::SelectAll) || keyEvent->matches(QKeySequence::Copy)
|| keyEvent->text().isEmpty()) {
return false;
}
ui->leFind->setFocus();
if (keyEvent->matches(QKeySequence::Find)) {
return true;
} else if (keyEvent->matches(QKeySequence::FindNext)) {
findText();
return true;
}
}
return false;
}
void ShowPacketBytesDialog::keyPressEvent(QKeyEvent *event)
{
if (ui->leFind->hasFocus()) {
if (event->key() == Qt::Key_Enter || event->key() == Qt::Key_Return) {
findText();
return;
}
} else {
if (event->key() == Qt::Key_Slash || event->matches(QKeySequence::Find)) {
ui->leFind->setFocus();
ui->leFind->selectAll();
}
return;
}
if (event->key() == Qt::Key_F3 || (event->key() == Qt::Key_N && event->modifiers() & Qt::ControlModifier)) {
findText();
return;
}
QDialog::keyPressEvent(event);
}
void ShowPacketBytesDialog::sanitizeBuffer(QByteArray &ba, bool keep_CR)
{
for (int i = 0; i < ba.length(); i++) {
if (ba[i] == '\n' || (keep_CR && ba[i] == '\r'))
// Keep LF and optionally CR
continue;
if (ba[i] == '\0' || g_ascii_isspace(ba[i])) {
ba[i] = ' ';
} else if (!g_ascii_isprint(ba[i])) {
ba[i] = '.';
}
}
}
void ShowPacketBytesDialog::symbolizeBuffer(QByteArray &ba)
{
for (int i = 0; i < ba.length(); i++) {
if ((ba[i] < '\0' || ba[i] >= ' ') && ba[i] != (char)0x7f && !g_ascii_isprint(ba[i])) {
ba[i] = '.';
}
}
QByteArray symbol(UTF8_SYMBOL_FOR_NULL);
for (char i = 0; i < ' '; i++) {
ba.replace(i, symbol);
symbol[2] = symbol[2] + 1;
}
symbol[2] = symbol[2] + 1; // Skip SP
ba.replace((char)0x7f, symbol); // DEL
}
QByteArray ShowPacketBytesDialog::decodeQuotedPrintable(const guint8 *bytes, int length)
{
QByteArray ba;
for (int i = 0; i < length; i++) {
if (bytes[i] == '=' && i + 1 < length) {
if (bytes[i+1] == '\n') {
i++; // Soft line break LF
} else if (bytes[i+1] == '\r' && i + 2 < length && bytes[i+2] == '\n') {
i += 2; // Soft line break CRLF
} else if (g_ascii_isxdigit(bytes[i+1]) && i + 2 < length && g_ascii_isxdigit(bytes[i+2])) {
ba.append(QByteArray::fromHex(QByteArray((const char *)&bytes[i+1], 2)));
i += 2; // Valid Quoted-Printable sequence
} else {
// Illegal Quoted-Printable, just add byte
ba.append(bytes[i]);
}
} else {
ba.append(bytes[i]);
}
}
return ba;
}
void ShowPacketBytesDialog::rot13(QByteArray &ba)
{
for (int i = 0; i < ba.length(); i++) {
gchar upper = g_ascii_toupper(ba[i]);
if (upper >= 'A' && upper <= 'M') ba[i] = ba[i] + 13;
else if (upper >= 'N' && upper <= 'Z') ba[i] = ba[i] - 13;
}
}
void ShowPacketBytesDialog::updateFieldBytes(bool initialization)
{
int start = finfo_->start + start_;
int length = end_ - start_;
const guint8 *bytes;
gsize new_length = 0;
if (!finfo_->ds_tvb)
return;
switch (decode_as_) {
case DecodeAsNone:
bytes = tvb_get_ptr(finfo_->ds_tvb, start, -1);
field_bytes_ = QByteArray((const char *)bytes, length);
break;
case DecodeAsBASE64:
{
bytes = tvb_get_ptr(finfo_->ds_tvb, start, -1);
field_bytes_ = QByteArray((const char *)bytes, length);
if (field_bytes_.size() > 1) {
g_base64_decode_inplace(field_bytes_.data(), &new_length);
}
field_bytes_.resize((int)new_length);
break;
}
case DecodeAsCompressed:
{
tvbuff *uncompr_tvb = tvb_uncompress(finfo_->ds_tvb, start, length);
if (uncompr_tvb) {
bytes = tvb_get_ptr(uncompr_tvb, 0, -1);
field_bytes_ = QByteArray((const char *)bytes, tvb_reported_length(uncompr_tvb));
tvb_free(uncompr_tvb);
} else {
field_bytes_.clear();
}
break;
}
case DecodeAsQuotedPrintable:
bytes = tvb_get_ptr(finfo_->ds_tvb, start, -1);
field_bytes_ = decodeQuotedPrintable(bytes, length);
break;
case DecodeAsROT13:
bytes = tvb_get_ptr(finfo_->ds_tvb, start, -1);
field_bytes_ = QByteArray((const char *)bytes, length);
rot13(field_bytes_);
break;
}
// Try loading as image at startup
if (initialization && image_.loadFromData(field_bytes_)) {
show_as_ = ShowAsImage;
ui->cbShowAs->blockSignals(true);
ui->cbShowAs->setCurrentIndex(ShowAsImage);
ui->cbShowAs->blockSignals(false);
}
updatePacketBytes();
}
void ShowPacketBytesDialog::updatePacketBytes(void)
{
static const gchar hexchars[16] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
ui->tePacketBytes->clear();
ui->tePacketBytes->setCurrentFont(wsApp->monospaceFont());
switch (show_as_) {
case ShowAsASCII:
{
QByteArray ba(field_bytes_);
sanitizeBuffer(ba, false);
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
ui->tePacketBytes->setPlainText(ba);
break;
}
case ShowAsASCIIandControl:
{
QByteArray ba(field_bytes_);
symbolizeBuffer(ba);
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
ui->tePacketBytes->setPlainText(ba);
break;
}
case ShowAsCArray:
{
int pos = 0, len = field_bytes_.length();
QString text("char packet_bytes[] = {\n");
while (pos < len) {
gchar hexbuf[256];
char *cur = hexbuf;
int i;
*cur++ = ' ';
for (i = 0; i < 8 && pos + i < len; i++) {
// Prepend entries with " 0x"
*cur++ = ' ';
*cur++ = '0';
*cur++ = 'x';
*cur++ = hexchars[(field_bytes_[pos + i] & 0xf0) >> 4];
*cur++ = hexchars[field_bytes_[pos + i] & 0x0f];
// Delimit array entries with a comma
if (pos + i + 1 < len)
*cur++ = ',';
}
pos += i;
*cur++ = '\n';
*cur = 0;
text.append(hexbuf);
}
text.append("};\n");
ui->tePacketBytes->setLineWrapMode(QTextEdit::NoWrap);
ui->tePacketBytes->setPlainText(text);
break;
}
case ShowAsEBCDIC:
{
QByteArray ba(field_bytes_);
EBCDIC_to_ASCII((guint8*)ba.data(), ba.length());
sanitizeBuffer(ba, false);
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
ui->tePacketBytes->setPlainText(ba);
break;
}
case ShowAsHexDump:
{
int pos = 0, len = field_bytes_.length();
// Use 16-bit offset if there are <= 65536 bytes, 32-bit offset if there are more
unsigned int offset_chars = (len - 1 <= 0xFFFF) ? 4 : 8;
QString text;
text.reserve((len / 16) * 80);
while (pos < len) {
char hexbuf[256];
char *cur = hexbuf;
int i;
// Dump offset
cur += g_snprintf(cur, 20, "%0*X ", offset_chars, pos);
// Dump bytes as hex
for (i = 0; i < 16 && pos + i < len; i++) {
*cur++ = hexchars[(field_bytes_[pos + i] & 0xf0) >> 4];
*cur++ = hexchars[field_bytes_[pos + i] & 0x0f];
*cur++ = ' ';
if (i == 7)
*cur++ = ' ';
}
while (cur < hexbuf + offset_chars + 53)
*cur++ = ' '; // Fill it up with space to ascii column
// Dump bytes as text
for (i = 0; i < 16 && pos + i < len; i++) {
if (g_ascii_isprint(field_bytes_[pos + i]))
*cur++ = field_bytes_[pos + i];
else
*cur++ = '.';
if (i == 7)
*cur++ = ' ';
}
pos += i;
*cur++ = '\n';
*cur = 0;
text.append(hexbuf);
}
ui->tePacketBytes->setLineWrapMode(QTextEdit::NoWrap);
ui->tePacketBytes->setPlainText(text);
break;
}
case ShowAsHTML:
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
ui->tePacketBytes->setHtml(field_bytes_);
break;
case ShowAsImage:
{
ui->lFind->setEnabled(false);
ui->leFind->setEnabled(false);
ui->bFind->setEnabled(false);
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
if (image_.loadFromData(field_bytes_)) {
ui->tePacketBytes->textCursor().insertImage(image_);
}
print_button_->setEnabled(!image_.isNull());
copy_button_->setEnabled(!image_.isNull());
save_as_button_->setEnabled(!image_.isNull());
break;
}
case ShowAsISO8859_1:
{
QString latin1 = QString::fromLatin1(field_bytes_.constData(), (int)field_bytes_.length());
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
ui->tePacketBytes->setPlainText(latin1);
break;
}
case ShowAsUTF8:
{
// The QString docs say that invalid characters will be replaced with
// replacement characters or removed. It would be nice if we could
// explicitly choose one or the other.
QString utf8 = QString::fromUtf8(field_bytes_.constData(), (int)field_bytes_.length());
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
ui->tePacketBytes->setPlainText(utf8);
break;
}
case ShowAsUTF16:
{
// QString::fromUtf16 calls QUtf16::convertToUnicode, casting buffer
// back to a const char * and doubling nchars.
QString utf16 = QString::fromUtf16((const unsigned short *)field_bytes_.constData(), (int)field_bytes_.length() / 2);
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
ui->tePacketBytes->setPlainText(utf16);
break;
}
case ShowAsYAML:
{
const int base64_raw_len = 57; // Encodes to 76 bytes, common in RFCs
int pos = 0, len = field_bytes_.length();
QString text("# Packet Bytes: !!binary |\n");
while (pos < len) {
QByteArray base64_data = field_bytes_.mid(pos, base64_raw_len);
pos += base64_data.length();
text.append(" " + base64_data.toBase64() + "\n");
}
ui->tePacketBytes->setLineWrapMode(QTextEdit::NoWrap);
ui->tePacketBytes->setPlainText(text);
break;
}
case ShowAsRAW:
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
ui->tePacketBytes->setPlainText(field_bytes_.toHex());
break;
}
}
void ShowPacketBytesDialog::captureFileClosing()
{
// We have lost the source backend and must disable all functions
// for manipulating decoding and displayed range.
ui->tePacketBytes->setMenusEnabled(false);
ui->lDecodeAs->setEnabled(false);
ui->cbDecodeAs->setEnabled(false);
ui->lStart->setEnabled(false);
ui->sbStart->setEnabled(false);
ui->lEnd->setEnabled(false);
ui->sbEnd->setEnabled(false);
finfo_ = NULL; // This will invalidate the source backend
WiresharkDialog::captureFileClosing();
}
void ShowPacketBytesTextEdit::contextMenuEvent(QContextMenuEvent *event)
{
QMenu *menu = createStandardContextMenu();
QAction *action;
menu->addSeparator();
action = menu->addAction(tr("Show Selected"));
action->setEnabled(menus_enabled_ && show_selected_enabled_ && textCursor().hasSelection());
connect(action, SIGNAL(triggered()), this, SLOT(showSelected()));
action = menu->addAction(tr("Show All"));
action->setEnabled(menus_enabled_);
connect(action, SIGNAL(triggered()), this, SLOT(showAll()));
menu->exec(event->globalPos());
delete menu;
}
void ShowPacketBytesTextEdit::showSelected()
{
QTextCursor cursor = textCursor();
int start = cursor.selectionStart();
int end = cursor.selectionEnd();
emit showSelected(start, end);
}
void ShowPacketBytesTextEdit::showAll()
{
emit showSelected(0, -1);
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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