-/*
- * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
- * Copyright (C) $$Year-Rel$$ The Jalview Authors
- *
- * This file is part of Jalview.
- *
- * Jalview is free software: you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3
- * of the License, or (at your option) any later version.
- *
- * Jalview is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
- * The Jalview Authors are detailed in the 'AUTHORS' file.
- */
-package jalview.appletgui;
-
-import javax.swing.JApplet;
-import java.awt.Color;
-import java.awt.Component;
-import java.awt.Container;
-import java.awt.FontMetrics;
-import java.awt.Graphics;
-import java.awt.Image;
-import java.awt.LayoutManager;
-import java.awt.event.MouseEvent;
-import java.awt.event.MouseListener;
-import java.awt.event.MouseMotionListener;
-import java.util.StringTokenizer;
-
-import javax.swing.JPanel;
-import javax.swing.JFrame;
-
-public class Tooltip extends JPanel implements MouseListener,
- MouseMotionListener
-{
- private String[] tip;
-
- private String lastTip = "";
-
- private boolean setPosition = false;
-
- protected Component owner;
-
- private Container mainContainer;
-
- private LayoutManager mainLayout;
-
- private boolean shown;
-
- private final int VERTICAL_OFFSET = 20;
-
- private final int HORIZONTAL_ENLARGE = 10;
-
- int fontHeight = 0;
-
- Image linkImage;
-
- FontMetrics fm;
-
- public Tooltip(String tip, Component owner)
- {
- this.owner = owner;
- owner.addMouseListener(this);
- owner.addMouseMotionListener(this);
- setBackground(new Color(255, 255, 220));
- setTip(tip);
- java.net.URL url = getClass().getResource("/images/link.gif");
- if (url != null)
- {
- linkImage = java.awt.Toolkit.getDefaultToolkit().getImage(url);
- }
- }
-
- public void paint(Graphics g)
- {
- int w = getSize().width;
- int h = getSize().height;
-
- g.drawRect(0, 0, w - 1, h - 1);
- int lindex, x;
- for (int i = 0; i < tip.length; i++)
- {
- x = 3;
- lindex = tip[i].indexOf("%LINK%");
- if (lindex != -1)
- {
- if (lindex > 0)
- {
- g.drawString(tip[i].substring(0, lindex), 3, (i + 1) * fontHeight
- - 3);
- x += fm.stringWidth(tip[i].substring(0, lindex) + 3);
- }
- g.drawImage(linkImage, x, i * fontHeight + 1, this);
- if (lindex + 6 < tip[i].length())
- {
- g.drawString(tip[i].substring(lindex + 6),
- x + linkImage.getWidth(this), (i + 1) * fontHeight - 3);
- }
- }
- else
- {
- g.drawString(tip[i], 3, (i + 1) * fontHeight - 3);
- }
- }
- }
-
- synchronized void setTip(String tip)
- {
- if (tip == null)
- {
- setTip("");
- return;
- }
-
- if (lastTip.equals(tip))
- {
- return;
- }
-
- lastTip = tip;
- setPosition = true;
-
- fm = getFontMetrics(owner.getFont());
- fontHeight = fm.getHeight();
-
- int longestLine = 0;
- StringTokenizer st = new StringTokenizer(tip, "\n");
- this.tip = new String[st.countTokens()];
- int index = 0;
- while (st.hasMoreElements())
- {
- this.tip[index] = st.nextToken();
- if (fm.stringWidth(this.tip[index]) > longestLine)
- {
- longestLine = fm.stringWidth(this.tip[index]);
- }
- index++;
- }
-
- setSize(longestLine + HORIZONTAL_ENLARGE, fontHeight * this.tip.length);
-
- repaint();
-
- }
-
- void setTipLocation(MouseEvent evt)
- {
- if (mainContainer == null || owner == null)
- {
- return;
- }
- setLocation(
- (owner.getLocationOnScreen().x - mainContainer.getLocationOnScreen().x)
- + evt.getX(),
- (owner.getLocationOnScreen().y
- - mainContainer.getLocationOnScreen().y + VERTICAL_OFFSET)
- + evt.getY());
-
- // correction, whole tool tip must be visible
- if (mainContainer.getSize().width < (getLocation().x + getSize().width))
- {
- setLocation(mainContainer.getSize().width - getSize().width,
- getLocation().y);
- }
- }
-
- private void removeToolTip()
- {
- if (shown)
- {
- mainContainer.remove(0);
- mainContainer.setLayout(mainLayout);
- mainContainer.validate();
- }
- shown = false;
- }
-
- private void findMainContainer()
- {
- Container parent = owner.getParent();
- while (true)
- {
- if ((parent instanceof JApplet) || (parent instanceof JFrame))
- {
- mainContainer = parent;
- break;
- }
- else
- {
- parent = parent.getParent();
- }
- }
- mainLayout = mainContainer.getLayout();
- }
-
- public void mouseEntered(MouseEvent me)
- {
- setTipLocation(me);
- }
-
- public void mouseExited(MouseEvent me)
- {
- removeToolTip();
- }
-
- public void mousePressed(MouseEvent me)
- {
- removeToolTip();
- }
-
- public void mouseReleased(MouseEvent me)
- {
- }
-
- public void mouseClicked(MouseEvent me)
- {
- }
-
- public void mouseMoved(MouseEvent me)
- {
- if (!shown)
- {
- findMainContainer();
- mainContainer.setLayout(null);
- mainContainer.add(this, 0);
- mainContainer.validate();
- shown = true;
- setTipLocation(me);
- }
- else if (setPosition)
- {
- setTipLocation(me);
- setPosition = false;
- }
- }
-
- public void mouseDragged(MouseEvent me)
- {
- }
-}
+/*\r
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)\r
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors\r
+ * \r
+ * This file is part of Jalview.\r
+ * \r
+ * Jalview is free software: you can redistribute it and/or\r
+ * modify it under the terms of the GNU General Public License \r
+ * as published by the Free Software Foundation, either version 3\r
+ * of the License, or (at your option) any later version.\r
+ * \r
+ * Jalview is distributed in the hope that it will be useful, but \r
+ * WITHOUT ANY WARRANTY; without even the implied warranty \r
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR \r
+ * PURPOSE. See the GNU General Public License for more details.\r
+ * \r
+ * You should have received a copy of the GNU General Public License\r
+ * along with Jalview. If not, see <http://www.gnu.org/licenses/>.\r
+ * The Jalview Authors are detailed in the 'AUTHORS' file.\r
+ */\r
+package jalview.appletgui;\r
+\r
+import javax.swing.JApplet;\r
+import java.awt.Color;\r
+import java.awt.Component;\r
+import java.awt.Container;\r
+import java.awt.FontMetrics;\r
+import java.awt.Graphics;\r
+import java.awt.Image;\r
+import java.awt.LayoutManager;\r
+import java.awt.event.MouseEvent;\r
+import java.awt.event.MouseListener;\r
+import java.awt.event.MouseMotionListener;\r
+import java.util.StringTokenizer;\r
+\r
+import javax.swing.JPanel;\r
+import javax.swing.JFrame;\r
+\r
+public class Tooltip extends JPanel implements MouseListener,\r
+ MouseMotionListener\r
+{\r
+ private String[] tip;\r
+\r
+ private String lastTip = "";\r
+\r
+ private boolean setPosition = false;\r
+\r
+ protected Component owner;\r
+\r
+ private Container mainContainer;\r
+\r
+ private LayoutManager mainLayout;\r
+\r
+ private boolean shown;\r
+\r
+ private final int VERTICAL_OFFSET = 20;\r
+\r
+ private final int HORIZONTAL_ENLARGE = 10;\r
+\r
+ int fontHeight = 0;\r
+\r
+ Image linkImage;\r
+\r
+ FontMetrics fm;\r
+\r
+ public Tooltip(String tip, Component owner)\r
+ {\r
+ this.owner = owner;\r
+ owner.addMouseListener(this);\r
+ owner.addMouseMotionListener(this);\r
+ setBackground(new Color(255, 255, 220));\r
+ setTip(tip);\r
+ java.net.URL url = getClass().getResource("/images/link.gif");\r
+ if (url != null)\r
+ {\r
+ linkImage = java.awt.Toolkit.getDefaultToolkit().getImage(url);\r
+ }\r
+ }\r
+\r
+ public void paint(Graphics g)\r
+ {\r
+ int w = getSize().width;\r
+ int h = getSize().height;\r
+\r
+ g.drawRect(0, 0, w - 1, h - 1);\r
+ int lindex, x;\r
+ for (int i = 0; i < tip.length; i++)\r
+ {\r
+ x = 3;\r
+ lindex = tip[i].indexOf("%LINK%");\r
+ if (lindex != -1)\r
+ {\r
+ if (lindex > 0)\r
+ {\r
+ g.drawString(tip[i].substring(0, lindex), 3, (i + 1) * fontHeight\r
+ - 3);\r
+ x += fm.stringWidth(tip[i].substring(0, lindex) + 3);\r
+ }\r
+ g.drawImage(linkImage, x, i * fontHeight + 1, this);\r
+ if (lindex + 6 < tip[i].length())\r
+ {\r
+ g.drawString(tip[i].substring(lindex + 6),\r
+ x + linkImage.getWidth(this), (i + 1) * fontHeight - 3);\r
+ }\r
+ }\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(\r
+ (owner.getLocationOnScreen().x - mainContainer.getLocationOnScreen().x)\r
+ + evt.getX(),\r
+ (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 JApplet) || (parent instanceof JFrame))\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
+}\r
git://source.jalview.org / jalviewjs.git / blobdiff