-/*\r
- * Jalview - A Sequence Alignment Editor and Viewer\r
- * Copyright (C) 2006 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle\r
- *\r
- * This program 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 2\r
- * of the License, or (at your option) any later version.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA\r
- */\r
-\r
-package jalview.appletgui;\r
-\r
-import java.awt.*;\r
-import java.applet.*;\r
-import java.awt.event.*;\r
-import java.util.*;\r
-\r
-public class Tooltip extends Canvas implements MouseListener,\r
- MouseMotionListener\r
-{\r
- private String [] tip;\r
- private String lastTip="";\r
- private boolean setPosition = false;\r
- protected Component owner;\r
-\r
- private Container mainContainer;\r
- private LayoutManager mainLayout;\r
-\r
- private boolean shown;\r
-\r
- private final int VERTICAL_OFFSET = 20;\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 - 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),\r
- (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
- return;\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
- longestLine = fm.stringWidth(this.tip[index]);\r
- index ++;\r
- }\r
-\r
- setSize(longestLine + HORIZONTAL_ENLARGE,\r
- fontHeight*this.tip.length);\r
-\r
- repaint();\r
-\r
- }\r
-\r
- void setTipLocation(MouseEvent evt)\r
- {\r
- setLocation( (owner.getLocationOnScreen().x\r
- - mainContainer.getLocationOnScreen().x) + evt.getX(),\r
- (owner.getLocationOnScreen().y -\r
- mainContainer.getLocationOnScreen().y\r
- + VERTICAL_OFFSET) + 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
-\r
- private void removeToolTip() {\r
- if (shown) {\r
- mainContainer.remove(0);\r
- mainContainer.setLayout(mainLayout);\r
- mainContainer.validate();\r
- }\r
- shown = false;\r
- }\r
-\r
- private void findMainContainer() {\r
- Container parent = owner.getParent();\r
- while (true) {\r
- if ((parent instanceof Applet) || (parent instanceof Frame)) {\r
- mainContainer = parent;\r
- break;\r
- } else {\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
- public void mouseClicked(MouseEvent me)\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
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.9)
+ * Copyright (C) 2015 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 java.applet.Applet;
+import java.awt.Canvas;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Container;
+import java.awt.FontMetrics;
+import java.awt.Frame;
+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;
+
+public class Tooltip extends Canvas 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 Applet) || (parent instanceof Frame))
+ {
+ 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)
+ {
+ }
+}
git://source.jalview.org / jalview.git / blobdiff