2 * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.2)
3 * Copyright (C) 2014 The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
21 package org.jibble.epsgraphics;
23 import jalview.util.MessageManager;
29 * This represents an EPS document. Several EpsGraphics2D objects may point to
30 * the same EpsDocument.
32 * Copyright Paul Mutton, <a
33 * href="http://www.jibble.org/">http://www.jibble.org/</a>
36 public class EpsDocument
40 * Constructs an empty EpsDevice.
42 public EpsDocument(String title)
45 minX = Float.POSITIVE_INFINITY;
46 minY = Float.POSITIVE_INFINITY;
47 maxX = Float.NEGATIVE_INFINITY;
48 maxY = Float.NEGATIVE_INFINITY;
49 _stringWriter = new StringWriter();
50 _bufferedWriter = new BufferedWriter(_stringWriter);
54 * Constructs an empty EpsDevice that writes directly to a file. Bounds must
57 public EpsDocument(String title, OutputStream outputStream, int minX,
58 int minY, int maxX, int maxY) throws IOException
65 _bufferedWriter = new BufferedWriter(new OutputStreamWriter(
67 write(_bufferedWriter);
71 * Returns the title of the EPS document.
73 public synchronized String getTitle()
79 * Updates the bounds of the current EPS document.
81 public synchronized void updateBounds(double x, double y)
102 * Appends a line to the EpsDocument. A new line character is added to the end
103 * of the line when it is added.
105 public synchronized void append(EpsGraphics2D g, String line)
111 else if (g != _lastG)
113 EpsGraphics2D lastG = _lastG;
115 // We are being drawn on with a different EpsGraphics2D context.
116 // We may need to update the clip, etc from this new context.
117 if (g.getClip() != lastG.getClip())
119 g.setClip(g.getClip());
121 if (!g.getColor().equals(lastG.getColor()))
123 g.setColor(g.getColor());
125 if (!g.getBackground().equals(lastG.getBackground()))
127 g.setBackground(g.getBackground());
129 // We don't need this, as this only affects the stroke and font,
130 // which are dealt with separately later on.
131 // if (!g.getTransform().equals(lastG.getTransform())) {
132 // g.setTransform(g.getTransform());
134 if (!g.getPaint().equals(lastG.getPaint()))
136 g.setPaint(g.getPaint());
138 if (!g.getComposite().equals(lastG.getComposite()))
140 g.setComposite(g.getComposite());
142 if (!g.getComposite().equals(lastG.getComposite()))
144 g.setComposite(g.getComposite());
146 if (!g.getFont().equals(lastG.getFont()))
148 g.setFont(g.getFont());
150 if (!g.getStroke().equals(lastG.getStroke()))
152 g.setStroke(g.getStroke());
159 _bufferedWriter.write(line + "\n");
160 } catch (IOException e)
162 throw new EpsException(MessageManager.formatMessage("exception.eps_coudnt_write_output_file", new String[]{e.getMessage()}));
167 * Outputs the contents of the EPS document to the specified Writer, complete
168 * with headers and bounding box.
170 public synchronized void write(Writer writer) throws IOException
172 float offsetX = -minX;
173 float offsetY = -minY;
175 writer.write("%!PS-Adobe-3.0 EPSF-3.0\n");
176 writer.write("%%Creator: Jalview "
177 + jalview.bin.Cache.getProperty("VERSION") + " \n");
178 writer.write("%%Title: " + _title + "\n");
179 writer.write("%%CreationDate: " + new Date() + "\n");
180 writer.write("%%BoundingBox: 0 0 " + ((int) Math.ceil(maxX + offsetX))
181 + " " + ((int) Math.ceil(maxY + offsetY)) + "\n");
182 writer.write("%%DocumentData: Clean7Bit\n");
183 writer.write("%%DocumentProcessColors: Black\n");
184 writer.write("%%ColorUsage: Color\n");
185 writer.write("%%Origin: 0 0\n");
186 writer.write("%%Pages: 1\n");
187 writer.write("%%Page: 1 1\n");
188 writer.write("%%EndComments\n\n");
190 writer.write("gsave\n");
192 if (_stringWriter != null)
194 writer.write(offsetX + " " + (offsetY) + " translate\n");
196 _bufferedWriter.flush();
197 StringBuffer buffer = _stringWriter.getBuffer();
198 for (int i = 0; i < buffer.length(); i++)
200 writer.write(buffer.charAt(i));
207 writer.write(offsetX + " " + ((maxY - minY) - offsetY)
214 private void writeFooter(Writer writer) throws IOException
216 writer.write("grestore\n");
219 writer.write("grestore\n");
221 writer.write("showpage\n");
223 writer.write("%%EOF");
227 public synchronized void flush() throws IOException
229 _bufferedWriter.flush();
232 public synchronized void close() throws IOException
234 if (_stringWriter == null)
236 writeFooter(_bufferedWriter);
237 _bufferedWriter.flush();
238 _bufferedWriter.close();
242 public boolean isClipSet()
247 public void setClipSet(boolean isClipSet)
249 _isClipSet = isClipSet;
260 private boolean _isClipSet = false;
262 private String _title;
264 private StringWriter _stringWriter;
266 private BufferedWriter _bufferedWriter = null;
268 // We need to remember which was the last EpsGraphics2D object to use
269 // us, as we need to replace the clipping region if another EpsGraphics2D
270 // object tries to use us.
271 private EpsGraphics2D _lastG = null;