|
1
11 package org.eclipse.ui.internal.forms.widgets;
12
13 import java.util.Hashtable  ;
14
15 import org.eclipse.swt.graphics.*;
16 import org.eclipse.ui.forms.HyperlinkSettings;
17
18
22 public class HyperlinkSegment
23 extends TextSegment {
24 private String href;
25 private static final String LINK_FG = "c.___link_fg";
26 private HyperlinkSettings settings;
27
28 public HyperlinkSegment(String text, HyperlinkSettings settings, String fontId) {
29 super(text, fontId);
30 this.settings = settings;
31 underline = settings.getHyperlinkUnderlineMode()==HyperlinkSettings.UNDERLINE_ALWAYS;
32 }
33
34
37 public String getHref() {
38 return href;
39 }
40
41 void setHref(String href) {
42 this.href = href;
43 }
44 public void paint(GC gc, int width, Locator locator, Hashtable resourceTable, boolean selected) {
45 resourceTable.put(LINK_FG, settings.getForeground());
46 setColorId(LINK_FG);
47 super.paint(gc, width, locator, resourceTable, selected);
48 }
49
50 public void repaint(GC gc, boolean hover) {
51 FontMetrics fm = gc.getFontMetrics();
52 int lineHeight = fm.getHeight();
53 int descent = fm.getDescent();
54 boolean rolloverMode = settings.getHyperlinkUnderlineMode()==HyperlinkSettings.UNDERLINE_HOVER;
55 for (int i=0; i<areaRectangles.size(); i++) {
56 AreaRectangle areaRectangle = (AreaRectangle)areaRectangles.get(i);
57 Rectangle rect = areaRectangle.rect;
58 String text = areaRectangle.getText();
59 Point extent = gc.textExtent(text);
60 int textX = rect.x + 1;
61 gc.drawString(text, textX, rect.y, false);
62 if (underline || hover || rolloverMode) {
63 int lineY = rect.y + lineHeight - descent + 1;
64 Color saved=null;
65 if (rolloverMode && !hover) {
66 saved = gc.getForeground();
67 gc.setForeground(gc.getBackground());
68 }
69 gc.drawLine(textX, lineY, textX+extent.x, lineY);
70 if (saved!=null)
71 gc.setForeground(saved);
72 }
73 }
74 }
75 }
76 |
Popular Tags |
Java API By Example, From Geeks To Geeks.