X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fappletgui%2FTooltip.java;h=fe7fbb77ef257b4e2e4ad36a6d8e491bca739ac4;hb=8449a33e712dfec13771d4e1b8be20bf625f190b;hp=b25abd5c7bc26f1b17f7fa2df88137129b8d4855;hpb=bceadbb394604c88ac18e2dcf4b33e735377d7ac;p=jalview.git
diff --git a/src/jalview/appletgui/Tooltip.java b/src/jalview/appletgui/Tooltip.java
index b25abd5..fe7fbb7 100755
--- a/src/jalview/appletgui/Tooltip.java
+++ b/src/jalview/appletgui/Tooltip.java
@@ -1,172 +1,232 @@
-
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.5)
+ * Copyright (C) 2010 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
+ *
+ * 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 .
+ */
package jalview.appletgui;
-import java.awt.*;
import java.applet.*;
-import java.awt.event.*;
import java.util.*;
+import java.awt.*;
+import java.awt.event.*;
+
public class Tooltip extends Canvas implements MouseListener,
- MouseMotionListener
+ MouseMotionListener
{
+ private String[] tip;
- private String [] tip;
- 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);
- }
- }
-
+ private String lastTip = "";
- public void paint(Graphics g)
- {
- g.drawRect(0,0,getSize().width -1, getSize().height -1);
- int lindex, x;
- for(int i=0; i0)
- {
- 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);
- }
- else
- g.drawString(tip[i], 3, (i+1)*fontHeight - 3);
- }
- }
-
- private void addToolTip()
- {
- mainContainer.setLayout(null);
- mainContainer.add(this, 0);
- mainContainer.validate();
- repaint();
- shown = true;
- }
+ private boolean setPosition = false;
- void setTip(String tip)
- {
- 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);
- }
-
- void setTipLocation(int x, int y)
- {
+ protected Component owner;
- setLocation((owner.getLocationOnScreen().x - mainContainer.getLocationOnScreen().x) +x,
- (owner.getLocationOnScreen().y - mainContainer.getLocationOnScreen().y + VERTICAL_OFFSET)+y);
+ private Container mainContainer;
+ private LayoutManager mainLayout;
+ private boolean shown;
- // correction, whole tool tip must be visible
- if (mainContainer.getSize().width < (getLocation().x + getSize().width))
- {
- setLocation(mainContainer.getSize().width - getSize().width,
- getLocation().y);
- }
+ private final int VERTICAL_OFFSET = 20;
- }
+ private final int HORIZONTAL_ENLARGE = 10;
+ int fontHeight = 0;
- private void removeToolTip() {
- if (shown) {
- mainContainer.remove(0);
- mainContainer.setLayout(mainLayout);
- mainContainer.validate();
- }
- shown = false;
- }
+ Image linkImage;
- 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();
- }
+ FontMetrics fm;
- public void mouseEntered(MouseEvent me)
- { }
+ 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 mouseExited(MouseEvent me)
- {
- removeToolTip();
- }
+ public void paint(Graphics g)
+ {
+ int w = getSize().width;
+ int h = getSize().height;
- public void mousePressed(MouseEvent me)
+ 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)
{
- removeToolTip();
+ g.drawString(tip[i].substring(0, lindex), 3, (i + 1) * fontHeight
+ - 3);
+ x += fm.stringWidth(tip[i].substring(0, lindex) + 3);
}
-
- public void mouseReleased(MouseEvent me)
- {}
-
- public void mouseClicked(MouseEvent me)
- {}
-
- public void mouseMoved(MouseEvent me)
+ g.drawImage(linkImage, x, i * fontHeight + 1, this);
+ if (lindex + 6 < tip[i].length())
{
- if (shown)
- setTipLocation(me.getX(), me.getY());
- else
- {
- findMainContainer();
- addToolTip();
- setTipLocation(me.getX(), me.getY());
- }
+ g.drawString(tip[i].substring(lindex + 6), x
+ + linkImage.getWidth(this), (i + 1) * fontHeight - 3);
}
-
- public void mouseDragged(MouseEvent me)
- {}
+ }
+ 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)
+ {
+ }
}