Mercurial > projects > dwt-addons

comparison dwtx/draw2d/PrinterGraphics.d @ 98:95307ad235d9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added Draw2d code, still work in progress
author Frank Benoit <benoit@tionex.de>
date Sun, 03 Aug 2008 00:52:14 +0200
parents
children
comparison
equal deleted inserted replaced
96:b492ba44e44d 98:95307ad235d9
1 /*******************************************************************************
2 * Copyright (c) 2000, 2005 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module dwtx.draw2d.PrinterGraphics;
14
15 import dwt.dwthelper.utils;
16 import dwtx.dwtxhelper.Collection;
17
18 import dwt.graphics.Font;
19 import dwt.graphics.FontData;
20 import dwt.graphics.Image;
21 import dwt.printing.Printer;
22 import dwt.widgets.Display;
23 import dwtx.draw2d.ScaledGraphics;
24 import dwtx.draw2d.Graphics;
25
26 /**
27 * A scalable graphics object used to print to a printer.
28 * @author danlee
29 */
30 public class PrinterGraphics : ScaledGraphics {
31
32 Map imageCache;
33
34 Printer printer;
35
36 /**
37 * Creates a new PrinterGraphics with Graphics g, using Printer p
38 * @param g Graphics object to draw with
39 * @param p Printer to print to
40 */
41 public this(Graphics g, Printer p) {
42 imageCache = new HashMap();
43 super(g);
44 printer = p;
45 }
46
47 Font createFont(FontData data) {
48 return new Font(printer, data);
49 }
50
51 private Image printerImage(Image image) {
52 Image result = cast(Image)imageCache.get(image);
53 if (result !is null)
54 return result;
55
56 result = new Image(printer, image.getImageData());
57 imageCache.put(image, result);
58 return result;
59 }
60
61 /**
62 * @see dwtx.draw2d.ScaledGraphics#dispose()
63 */
64 public void dispose() {
65 super.dispose();
66
67 //Dispose printer images
68 Iterator iter = imageCache.values().iterator();
69 while (iter.hasNext()) {
70 Image printerImage = (cast(Image)iter.next());
71 printerImage.dispose();
72 }
73
74 imageCache.clear();
75 }
76
77 /**
78 * @see dwtx.draw2d.Graphics#drawImage(Image, int, int)
79 */
80 public void drawImage(Image srcImage, int x, int y) {
81 super.drawImage(printerImage(srcImage), x, y);
82 }
83
84 /**
85 * @see Graphics#drawImage(Image, int, int, int, int, int, int, int, int)
86 */
87 public void drawImage(Image srcImage, int sx, int sy, int sw, int sh,
88 int tx, int ty, int tw, int th) {
89 super.drawImage(printerImage(srcImage), sx, sy, sw, sh, tx, ty, tw, th);
90 }
91
92 int zoomFontHeight(int height) {
93 return cast(int)
94 (height * zoom * Display.getCurrent().getDPI().y / printer.getDPI().y
95 + 0.0000001);
96 }
97
98 int zoomLineWidth(int w) {
99 return cast(int)(w * zoom);
100 }
101
102 }