+ }\r
+ else\r
+ {\r
+ g.drawString(tip[i], 3, (i + 1) * fontHeight - 3);\r
+ }\r
+ }\r
+ }\r
+\r
+ synchronized void setTip(String tip)\r
+ {\r
+ if (tip == null)\r
+ {\r
+ setTip("");\r
+ return;\r
+ }\r
+\r
+ if (lastTip.equals(tip))\r
+ {\r
+ return;\r
+ }\r
+\r
+ lastTip = tip;\r
+ setPosition = true;\r
+\r
+ fm = getFontMetrics(owner.getFont());\r
+ fontHeight = fm.getHeight();\r
+\r
+ int longestLine = 0;\r
+ StringTokenizer st = new StringTokenizer(tip, "\n");\r
+ this.tip = new String[st.countTokens()];\r
+ int index = 0;\r
+ while (st.hasMoreElements())\r
+ {\r
+ this.tip[index] = st.nextToken();\r
+ if (fm.stringWidth(this.tip[index]) > longestLine)\r
+ {\r
+ longestLine = fm.stringWidth(this.tip[index]);\r
+ }\r
+ index++;\r
+ }\r
+\r
+ setSize(longestLine + HORIZONTAL_ENLARGE, fontHeight * this.tip.length);\r
+\r
+ repaint();\r
+\r
+ }\r
+\r
+ void setTipLocation(MouseEvent evt)\r
+ {\r
+ if (mainContainer == null || owner == null)\r
+ {\r
+ return;\r
+ }\r
+ setLocation((owner.getLocationOnScreen().x - mainContainer\r
+ .getLocationOnScreen().x)\r
+ + evt.getX(), (owner.getLocationOnScreen().y\r
+ - mainContainer.getLocationOnScreen().y + VERTICAL_OFFSET)\r
+ + evt.getY());\r
+\r
+ // correction, whole tool tip must be visible\r
+ if (mainContainer.getSize().width < (getLocation().x + getSize().width))\r
+ {\r
+ setLocation(mainContainer.getSize().width - getSize().width,\r
+ getLocation().y);\r
+ }\r
+ }\r
+\r
+ private void removeToolTip()\r
+ {\r
+ if (shown)\r
+ {\r
+ mainContainer.remove(0);\r
+ mainContainer.setLayout(mainLayout);\r
+ mainContainer.validate();\r
+ }\r
+ shown = false;\r
+ }\r
+\r
+ private void findMainContainer()\r
+ {\r
+ Container parent = owner.getParent();\r
+ while (true)\r
+ {\r
+ if ((parent instanceof Applet) || (parent instanceof Frame))\r
+ {\r
+ mainContainer = parent;\r
+ break;\r
+ }\r
+ else\r
+ {\r
+ parent = parent.getParent();\r
+ }\r
+ }\r
+ mainLayout = mainContainer.getLayout();\r
+ }\r
+\r
+ public void mouseEntered(MouseEvent me)\r
+ {\r
+ setTipLocation(me);\r
+ }\r
+\r
+ public void mouseExited(MouseEvent me)\r
+ {\r
+ removeToolTip();\r
+ }\r
+\r
+ public void mousePressed(MouseEvent me)\r
+ {\r
+ removeToolTip();\r
+ }\r
+\r
+ public void mouseReleased(MouseEvent me)\r
+ {\r
+ }\r
+\r
+ public void mouseClicked(MouseEvent me)\r
+ {\r
+ }\r
+\r
+ public void mouseMoved(MouseEvent me)\r
+ {\r
+ if (!shown)\r
+ {\r
+ findMainContainer();\r
+ mainContainer.setLayout(null);\r
+ mainContainer.add(this, 0);\r
+ mainContainer.validate();\r
+ shown = true;\r
+ setTipLocation(me);\r
+ }\r
+ else if (setPosition)\r
+ {\r
+ setTipLocation(me);\r
+ setPosition = false;\r
+ }\r
+ }\r
+\r
+ public void mouseDragged(MouseEvent me)\r
+ {\r
+ }\r