org.apache.pdfbox.debugger.hexviewer.HexView Maven / Gradle / Ivy
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The Apache PDFBox library is an open source Java tool for working with PDF documents.
This artefact contains the PDFDebugger.
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pdfbox.debugger.hexviewer;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.RenderingHints;
import java.util.HashMap;
import java.util.Map;
import javax.swing.JComponent;
import javax.swing.JPanel;
import javax.swing.UIManager;
/**
* @author Khyrul Bashar
*
* HexView takes a byte array or Stream instance and shows them in Hex viewer.
*/
public class HexView
{
private final JComponent mainPane;
static final int FONT_SIZE = ((Font)UIManager.get("Label.font")).getSize();
static final Font FONT = new Font("monospaced", Font.PLAIN, FONT_SIZE);
static final int CHAR_HEIGHT = 20;
static final int CHAR_WIDTH = 35;
static final int LINE_INSET = 20;
static final Color SELECTED_COLOR = UIManager.getColor("textHighlight");
static final Font BOLD_FONT = new Font("monospaced", Font.BOLD, FONT_SIZE);
static final int HEX_PANE_WIDTH = 600;
static final int ADDRESS_PANE_WIDTH = 120;
static final int ASCII_PANE_WIDTH = 270;
static final int TOTAL_WIDTH = HEX_PANE_WIDTH + ADDRESS_PANE_WIDTH +ASCII_PANE_WIDTH;
static final Map RENDERING_HINTS = new HashMap<>();
static
{
RENDERING_HINTS.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
RENDERING_HINTS.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);
}
public HexView()
{
mainPane = new JPanel(new BorderLayout());
}
/**
* Constructor.
* @param bytes takes a byte array.
*/
public HexView(byte[] bytes)
{
mainPane = new JPanel(new BorderLayout());
mainPane.add(new HexEditor(new HexModel(bytes)));
}
public void changeData(byte[] bytes)
{
if (mainPane.getComponentCount() > 0)
{
mainPane.removeAll();
}
HexModel model = new HexModel(bytes);
mainPane.add(new HexEditor(model));
mainPane.validate();
}
public JComponent getPane()
{
return mainPane;
}
}