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hexeditwidget.cpp
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hexeditwidget.cpp
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/*******************************************************************************
* fred Copyright (c) 2011-2012 by Gillen Daniel <gillen.dan@pinguin.lu> *
* *
* Forensic Registry EDitor (fred) is a cross-platform M$ registry hive editor *
* with special feautures useful during forensic analysis. *
* *
* 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 3 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, see <http://www.gnu.org/licenses/>. *
*******************************************************************************/
#include <QFont>
#include <QSizePolicy>
#include "hexeditwidget.h"
HexEditWidget::HexEditWidget(QWidget *p_parent) : QWidget(p_parent) {
// Init private vars
this->data=QByteArray();
this->read_only=true;
// Set widget layout. Setting it's parent to "this" will also call
// this->SetLayout.
this->p_widget_layout=new QVBoxLayout(this);
// Create sub-widgets
this->p_widget_splitter=new QSplitter(this);
this->p_hex_edit_layout_widget=new QWidget(this->p_widget_splitter);
this->p_hex_edit_layout=new QVBoxLayout(this->p_hex_edit_layout_widget);
this->p_hex_edit=new QHexEdit(this->p_hex_edit_layout_widget);
this->p_hex_edit_status_bar=new QLabel();
this->p_data_interpreter_widget=
new DataInterpreterWidget(this);
// Add hex edit and hex edit status bar to their layout
this->p_hex_edit_layout->addWidget(this->p_hex_edit);
this->p_hex_edit_layout->addWidget(this->p_hex_edit_status_bar);
// Add sub-widgets to splitter and splitter to our layout
this->p_widget_splitter->addWidget(this->p_hex_edit_layout_widget);
this->p_widget_splitter->addWidget(this->p_data_interpreter_widget);
this->p_widget_layout->addWidget(this->p_widget_splitter);
// Configure widget and sub-widgets
this->setContentsMargins(0,0,0,0);
this->p_widget_layout->setContentsMargins(0,0,0,0);
this->p_widget_splitter->setOrientation(Qt::Horizontal);
this->p_hex_edit_layout_widget->setContentsMargins(0,0,0,0);
this->p_hex_edit_layout->setContentsMargins(0,0,0,0);
this->p_hex_edit->setContentsMargins(0,0,0,0);
// 5 pixel bottom margin makes hex edit and data interpreter lignup correctly
this->p_hex_edit_status_bar->setContentsMargins(0,0,0,5);
this->p_hex_edit->setReadOnly(this->read_only);
this->setEnabled(false);
// Make sure hex edit font is monospaced.
QFont mono_font("Monospace");
mono_font.setStyleHint(QFont::TypeWriter);
this->p_hex_edit->setFont(mono_font);
// Set size policies of sub-widgets
QSizePolicy hex_edit_layout_widget_policy=
this->p_hex_edit_layout_widget->sizePolicy();
hex_edit_layout_widget_policy.setVerticalStretch(2);
hex_edit_layout_widget_policy.setHorizontalStretch(200);
this->p_hex_edit_layout_widget->setSizePolicy(hex_edit_layout_widget_policy);
QSizePolicy data_interpreter_widget_policy=
this->p_data_interpreter_widget->sizePolicy();
data_interpreter_widget_policy.setVerticalStretch(2);
data_interpreter_widget_policy.setHorizontalStretch(0);
this->p_data_interpreter_widget->
setSizePolicy(data_interpreter_widget_policy);
// Connect signals
this->connect(this->p_hex_edit,
SIGNAL(currentAddressChanged(int)),
this,
SLOT(SlotHexEditOffsetChanged(int)));
}
HexEditWidget::~HexEditWidget() {
delete this->p_data_interpreter_widget;
delete this->p_hex_edit_status_bar;
delete this->p_hex_edit;
delete this->p_hex_edit_layout;
delete this->p_hex_edit_layout_widget;
delete this->p_widget_splitter;
delete this->p_widget_layout;
}
void HexEditWidget::SetData(QByteArray const &new_data) {
this->data=new_data;
this->p_hex_edit->setData(this->data);
if(data.size()!=0) {
// Data set, update status bar and init data interpreter
this->SlotHexEditOffsetChanged(0);
} else {
// No data set, clear status bar and data interpreter
this->p_hex_edit_status_bar->setText("");
this->p_data_interpreter_widget->SetData(QByteArray());
}
}
void HexEditWidget::SlotHexEditOffsetChanged(int offset) {
// Update hex edit status bar
this->p_hex_edit_status_bar->setText(tr("Byte offset: 0x%1 (%2)")
.arg((quint16)offset,
4,
16,
QChar('0'))
.arg(offset));
// Update data interpreter
this->p_data_interpreter_widget->SetData(this->data.mid(offset,8));
}

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