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| 1.import java.awt.Color;
2.import java.awt.Dimension;
3.import java.awt.Graphics;
4.import java.awt.Graphics2D;
5.import java.awt.GridBagLayout;
6.import java.awt.RenderingHints;
7.import java.awt.print.PageFormat;
8.import java.awt.print.Paper;
9.import java.awt.print.Printable;
10.import java.awt.print.PrinterException;
11.import java.awt.print.PrinterJob;
12.import java.util.Vector;
13.
14.import javax.swing.*;
15.
16.public class MPanelPrinter implements Printable
17.{
18.
19. public MPanelPrinter(JPanel panel)
20. {
21. documentTitle = "";
22. this.panel = panel;
23. initPrintablePanel();
24. }
25.
26. public void initPrintablePanel()
27. {
28. showPrintZone = false;
29. fitIntoPage = false;
30. wrapComponent = false;
31. printJob = PrinterJob.getPrinterJob();
32. pageFormat = printJob.defaultPage();
33. pageFormat.setOrientation(1);
34. }
35.
36. public void setOrientation(int orientation)
37. {
38. pageFormat.setOrientation(orientation);
39. }
40.
41. public void setPrintZoneVisible(boolean status)
42. {
43. showPrintZone = status;
44. }
45.
46. public void setWrapComponent(boolean status)
47. {
48. wrapComponent = status;
49. }
50.
51. public void setFitIntoPage(boolean status)
52. {
53. fitIntoPage = status;
54. }
55.
56. public int getPageWidth()
57. {
58. return (int)pageFormat.getImageableWidth();
59. }
60.
61. public double getMarginTop ()
62. {
63. return pageFormat.getImageableY();
64. }
65.
66. public double getMarginLeft ()
67. {
68. return pageFormat.getImageableX();
69. }
70.
71. public void setLRMargins(int margin)
72. {
73. Paper paper = pageFormat.getPaper();
74. paper.setImageableArea(paper.getImageableX() - (double)(margin / 2), paper.getImageableY(), paper.getImageableWidth() + (double)(margin / 2), paper.getImageableHeight());
75. pageFormat.setPaper(paper);
76. }
77.
78. public void setTBMargins(int margin)
79. {
80. Paper paper = pageFormat.getPaper();
81. paper.setImageableArea(paper.getImageableX(), paper.getImageableY() - (double)(margin / 2), paper.getImageableWidth(), paper.getImageableHeight() + (double)(margin / 2));
82. pageFormat.setPaper(paper);
83. }
84.
85. public void setDocumentTitle(String title)
86. {
87. documentTitle = title;
88. }
89.
90. public int print(Graphics g, PageFormat pf, int pageIndex)
91. throws PrinterException
92. {
93. Dimension tailleDoc = panel.getSize();
94. double hauteurDocu = tailleDoc.getHeight();
95. double hauteurPage = pf.getImageableHeight();
96. double largeurDocu = tailleDoc.getWidth();
97. double largeurPage = pf.getImageableWidth();
98. int totalNumPages = (int)Math.ceil(hauteurDocu / hauteurPage);
99. if(wrapComponent)
100. totalNumPages = taillePages.size();
101. else
102. if(fitIntoPage)
103. totalNumPages = 1;
104. double scaleX = largeurPage / largeurDocu;
105. double scaleY = hauteurPage / hauteurDocu;
106. if(pageIndex >= totalNumPages)
107. return 1;
108. Graphics2D g2d = (Graphics2D)g;
109. g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
110. g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
111. g2d.translate(pf.getImageableX(), pf.getImageableY());
112. if(fitIntoPage)
113. {
114. double ratio = Math.min(scaleX, scaleY);
115. g2d.scale(ratio, ratio);
116. } else
117. if(wrapComponent)
118. {
119. if(pageIndex > 0)
120. g2d.translate(0.0D, -((Double)taillePages.get(pageIndex - 1)).doubleValue());
121. } else
122. {
123. g2d.translate(0.0D, (double)(-pageIndex) * hauteurPage);
124. }
125. panel.paint(g2d);
126. if(wrapComponent)
127. {
128. double hauteurBlanc = ((Double)taillePages.get(pageIndex)).doubleValue();
129. g2d.setColor(Color.WHITE);
130. g2d.fillRect(0, (int)hauteurBlanc, (int)largeurPage, (int)hauteurBlanc + (int)hauteurPage);
131. }
132. if(wrapComponent)
133. {
134. if(pageIndex > 0)
135. g2d.translate(0.0D, ((Double)taillePages.get(pageIndex - 1)).doubleValue());
136. } else
137. {
138. g2d.translate(0.0D, (double)pageIndex * hauteurPage);
139. }
140. return 0;
141. }
142.
143. public void print()
144. {
145. printJob.setPrintable(this, pageFormat);
146. try
147. {
148. if(printJob.printDialog())
149. {
150. if(wrapComponent)
151. calculatePages();
152. Paper paper = pageFormat.getPaper();
153. Paper save = pageFormat.getPaper();
154. paper.setImageableArea(0, 0, paper.getWidth(), paper.getHeight());
155. pageFormat.setPaper(paper);
156. printJob.setPrintable(this, pageFormat);
157. printJob.print();
158. pageFormat.setPaper(save);
159. }
160. }
161. catch(PrinterException pe)
162. {
163. System.out.println("Erreur lors de l'impression du document: " + toString());
164. }
165. }
166.
167. private void calculatePages()
168. {
169. taillePages = new Vector();
170. double hauteurPage = pageFormat.getImageableHeight();
171. double hauteurTotal = 0.0D;
172. double hauteurCumul = 0.0D;
173. for(int i = 0; i < panel.getComponentCount(); i++)
174. {
175. int gridBagInsets = 0;
176. if(panel.getLayout() instanceof GridBagLayout)
177. gridBagInsets = ((GridBagLayout)panel.getLayout()).getConstraints(panel.getComponent(i)).insets.bottom + ((GridBagLayout)panel.getLayout()).getConstraints(panel.getComponent(i)).insets.top;
178. double hauteurComponent = panel.getComponent(i).getSize().getHeight() + (double)gridBagInsets;
179. if(hauteurComponent > hauteurPage)
180. {
181. wrapComponent = false;
182. return;
183. }
184. hauteurTotal += hauteurComponent;
185. if(hauteurTotal > hauteurPage)
186. {
187. hauteurTotal -= hauteurComponent;
188. hauteurCumul += hauteurTotal;
189. taillePages.add(new Double(hauteurCumul));
190. hauteurTotal = hauteurComponent;
191. }
192. }
193.
194. hauteurCumul += hauteurTotal;
195. taillePages.add(new Double(hauteurCumul));
196. }
197.
198. private JPanel panel;
199. private boolean showPrintZone;
200. private boolean fitIntoPage;
201. private boolean wrapComponent;
202. private PageFormat pageFormat;
203. private PrinterJob printJob;
204. private Vector taillePages;
205. private String documentTitle;
206. public static final int PORTRAIT = 1;
207. public static final int LANDSCAPE = 0;
208.
209.} |
