1 // Copyright 2002, FreeHEP.
2 package org.freehep.graphicsio.emf.gdi;
3
4 import java.awt.Color;
5 import java.io.IOException;
6
7 import org.freehep.graphicsio.emf.EMFInputStream;
8 import org.freehep.graphicsio.emf.EMFOutputStream;
9 import org.freehep.graphicsio.emf.EMFTag;
10 import org.freehep.graphicsio.emf.EMFRenderer;
11
12 /**
13 * SetBkColor TAG.
14 *
15 * @author Mark Donszelmann
16 * @version $Id: SetBkColor.java 10367 2007-01-22 19:26:48Z duns $
17 */
18 public class SetBkColor extends EMFTag {
19
20 private Color color;
21
22 public SetBkColor() {
23 super(25, 1);
24 }
25
26 public SetBkColor(Color color) {
27 this();
28 this.color = color;
29 }
30
31 public EMFTag read(int tagID, EMFInputStream emf, int len)
32 throws IOException {
33
34 return new SetBkColor(emf.readCOLORREF());
35 }
36
37 public void write(int tagID, EMFOutputStream emf) throws IOException {
38 emf.writeCOLORREF(color);
39 }
40
41 public String toString() {
42 return super.toString() + "\n color: " + color;
43 }
44
45 /**
46 * displays the tag using the renderer
47 *
48 * @param renderer EMFRenderer storing the drawing session data
49 */
50 public void render(EMFRenderer renderer) {
51 // This function fills the gaps between styled lines drawn using a
52 // pen created by the CreatePen function; it does not fill the gaps
53 // between styled lines drawn using a pen created by the ExtCreatePen
54 // function. The SetBKColor function also sets the background colors
55 // for TextOut and ExtTextOut.
56
57 // If the background mode is OPAQUE, the background color is used to
58 // fill gaps between styled lines, gaps between hatched lines in brushes,
59 // and character cells. The background color is also used when converting
60 // bitmaps from color to monochrome and vice versa.
61
62 // TODO: affects TextOut and ExtTextOut, CreatePen
63 }
64 }