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/* byte_view_tab.cpp
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "byte_view_tab.h"
#include "byte_view_text.h"
#include <QTabBar>
#include <QTreeWidgetItem>
ByteViewTab::ByteViewTab(QWidget *parent) :
QTabWidget(parent)
{
setAccessibleName(tr("Packet bytes"));
addTab();
}
void ByteViewTab::addTab(const char *name, tvbuff_t *tvb, proto_tree *tree, QTreeWidget *protoTree, packet_char_enc encoding) {
ByteViewText *byte_view_text = new ByteViewText(this, tvb, tree, protoTree, encoding);
byte_view_text->setAccessibleName(name);
QTabWidget::addTab(byte_view_text, name);
}
void ByteViewTab::clear()
{
while (currentWidget()) {
delete currentWidget();
}
}
void ByteViewTab::tabInserted(int index) {
setTabsVisible();
QTabWidget::tabInserted(index);
}
void ByteViewTab::tabRemoved(int index) {
setTabsVisible();
QTabWidget::tabRemoved(index);
}
void ByteViewTab::setTabsVisible() {
if (count() > 1)
tabBar()->show();
else
tabBar()->hide();
}
void ByteViewTab::protoTreeItemChanged(QTreeWidgetItem *current) {
if (current && cap_file_) {
field_info *fi;
fi = current->data(0, Qt::UserRole).value<field_info *>();
int i = 0;
ByteViewText *byte_view_text = qobject_cast<ByteViewText*>(widget(i));
while (byte_view_text) {
if (byte_view_text->hasDataSource(fi->ds_tvb)) {
QTreeWidgetItem *parent = current->parent();
field_info *parent_fi = NULL;
int f_start = -1, f_end = -1, f_len = -1;
guint32 bmask = 0x00;
int fa_start = -1, fa_end = -1, fa_len = -1;
int p_start = -1, p_end = -1, p_len = -1;
guint len = tvb_length(fi->ds_tvb);
// Find and highlight the protocol bytes
while (parent && parent->parent()) {
parent = parent->parent();
}
if (parent) {
parent_fi = parent->data(0, Qt::UserRole).value<field_info *>();
}
if (parent_fi && parent_fi->ds_tvb == fi->ds_tvb) {
p_start = parent_fi->start;
p_len = parent_fi->length;
}
if (cap_file_->search_in_progress && (cap_file_->hex || (cap_file_->string && cap_file_->packet_data))) {
/* In the hex view, only highlight the target bytes or string. The entire
field can then be displayed by clicking on any of the bytes in the field. */
if (cap_file_->hex) {
const char *p = cap_file_->sfilter;
f_len = 0;
while (*p) {
if (g_ascii_isxdigit(*p++))
f_len++;
}
f_len = (f_len + 1) / 2;
} else {
f_len = (int)strlen(cap_file_->sfilter);
}
f_start = cap_file_->search_pos - (f_len-1);
} else {
f_start = fi->start;
f_len = fi->length;
}
/* bmask = finfo->hfinfo->bitmask << hfinfo_bitshift(finfo->hfinfo); */ /* (value & mask) >> shift */
if (fi->hfinfo) bmask = fi->hfinfo->bitmask;
fa_start = fi->appendix_start;
fa_len = fi->appendix_length;
if (!FI_GET_FLAG(fi, FI_LITTLE_ENDIAN) &&
!FI_GET_FLAG(fi, FI_BIG_ENDIAN)) {
/* unknown endianess - disable mask */
bmask = 0x00;
}
if (bmask == 0x00) {
int bito = FI_GET_BITS_OFFSET(fi);
int bitc = FI_GET_BITS_SIZE(fi);
int bitt = bito + bitc;
/* construct mask using bito & bitc */
/* XXX, mask has only 32 bit, later we can store bito&bitc, and use them (which should be faster) */
if (bitt > 0 && bitt < 32) {
bmask = ((1 << bitc) - 1) << ((8-bitt) & 7);
}
}
if (p_start >= 0 && p_len > 0 && (guint)p_start < len) {
p_end = p_start + p_len;
}
if (f_start >= 0 && f_len > 0 && (guint)f_start < len) {
f_end = f_start + f_len;
}
if (fa_start >= 0 && fa_len > 0 && (guint)fa_start < len) {
fa_end = fa_start + fa_len;
}
if (f_end == -1 && fa_end != -1) {
f_start = fa_start;
bmask = 0x00;
f_end = fa_end;
fa_start = fa_end = -1;
}
/* don't exceed the end of available data */
if (p_end != -1 && (guint)p_end > len) p_end = len;
if (f_end != -1 && (guint)f_end > len) f_end = len;
if (fa_end != -1 && (guint)fa_end > len) fa_end = len;
// Protocol
byte_view_text->setProtocolHighlight(p_start, p_end);
// Field bytes
byte_view_text->setFieldHighlight(f_start, f_end);
// Appendix (trailer) bytes
byte_view_text->setFieldAppendixHighlight(fa_start, fa_end);
byte_view_text->renderBytes();
setCurrentIndex(i);
}
byte_view_text = qobject_cast<ByteViewText*>(widget(++i));
}
}
}
void ByteViewTab::setCaptureFile(capture_file *cf)
{
cap_file_ = cf;
}
/*
* 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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