2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
23 import jalview.util.MessageManager;
25 import java.awt.BorderLayout;
26 import java.awt.Color;
28 import java.awt.GridLayout;
29 import java.awt.Rectangle;
30 import java.awt.event.ActionListener;
31 import java.util.Objects;
33 import javax.swing.AbstractButton;
34 import javax.swing.JButton;
35 import javax.swing.JComponent;
36 import javax.swing.JLabel;
37 import javax.swing.JMenu;
38 import javax.swing.JMenuItem;
39 import javax.swing.JPanel;
40 import javax.swing.JScrollBar;
41 import javax.swing.SwingConstants;
44 * useful functions for building Swing GUIs
49 public final class JvSwingUtils
52 * wrap a bare html safe string to around 60 characters per line using a CSS
53 * style class specifying word-wrap and break-word
56 * if true, add <html> wrapper tags
61 public static String wrapTooltip(boolean enclose, String ttext)
63 Objects.requireNonNull(ttext, "Tootip text to format must not be null!");
65 boolean maxLengthExceeded = false;
68 * Split into lines if already separated by <br> tags.
70 * TODO what about </br>, <br/>, <br /> ?
72 if (ttext.contains("<br>"))
74 String[] htmllines = ttext.split("<br>");
75 for (String line : htmllines)
77 maxLengthExceeded = line.length() > 60;
78 if (maxLengthExceeded)
86 maxLengthExceeded = ttext.length() > 60;
89 if (!maxLengthExceeded)
91 return enclose ? "<html>" + ttext + "</html>" : ttext;
94 return enclose ? "<html><style> p.ttip {width: 350; text-align: justify; word-wrap: break-word;}</style><p class=\"ttip\">"
95 + ttext + "</p></html>"
99 public static JButton makeButton(String label, String tooltip,
100 ActionListener action)
102 JButton button = new JButton();
103 button.setText(label);
104 // TODO: get the base font metrics for the Jalview gui from somewhere
105 button.setFont(new java.awt.Font("Verdana", Font.PLAIN, 10));
106 button.setForeground(Color.black);
107 button.setHorizontalAlignment(SwingConstants.CENTER);
108 button.setToolTipText(tooltip);
109 button.addActionListener(action);
114 * find or add a submenu with the given title in the given menu
118 * @return the new or existing submenu
120 public static JMenu findOrCreateMenu(JMenu menu, String submenu)
122 JMenu submenuinstance = null;
123 for (int i = 0, iSize = menu.getMenuComponentCount(); i < iSize; i++)
125 if (menu.getMenuComponent(i) instanceof JMenu
126 && ((JMenu) menu.getMenuComponent(i)).getText().equals(
129 submenuinstance = (JMenu) menu.getMenuComponent(i);
132 if (submenuinstance == null)
134 submenuinstance = new JMenu(submenu);
135 menu.add(submenuinstance);
137 return submenuinstance;
147 * @return the GUI element created that was added to the layout so it's
148 * attributes can be changed.
150 public static JPanel addtoLayout(JPanel panel, String tooltip,
151 JComponent label, JComponent valBox)
153 JPanel laypanel = new JPanel(new GridLayout(1, 2));
154 JPanel labPanel = new JPanel(new BorderLayout());
155 JPanel valPanel = new JPanel();
156 labPanel.setBounds(new Rectangle(7, 7, 158, 23));
157 valPanel.setBounds(new Rectangle(172, 7, 270, 23));
158 labPanel.add(label, BorderLayout.WEST);
159 valPanel.add(valBox);
160 laypanel.add(labPanel);
161 laypanel.add(valPanel);
162 valPanel.setToolTipText(tooltip);
163 labPanel.setToolTipText(tooltip);
164 valBox.setToolTipText(tooltip);
170 public static void mgAddtoLayout(JPanel cpanel, String tooltip,
171 JLabel jLabel, JComponent name)
173 mgAddtoLayout(cpanel, tooltip, jLabel, name, null);
176 public static void mgAddtoLayout(JPanel cpanel, String tooltip,
177 JLabel jLabel, JComponent name, String params)
186 cpanel.add(name, params);
188 name.setToolTipText(tooltip);
189 jLabel.setToolTipText(tooltip);
193 * standard font for labels and check boxes in dialog boxes
198 public static Font getLabelFont()
200 return getLabelFont(false, false);
203 public static Font getLabelFont(boolean bold, boolean italic)
205 return new java.awt.Font("Verdana", (!bold && !italic) ? Font.PLAIN
206 : (bold ? Font.BOLD : 0) + (italic ? Font.ITALIC : 0), 11);
210 * standard font for editable text areas
214 public static Font getTextAreaFont()
216 return getLabelFont(false, false);
220 * clean up a swing menu. Removes any empty submenus without selection
225 public static void cleanMenu(JMenu webService)
227 for (int i = 0; i < webService.getItemCount();)
229 JMenuItem item = webService.getItem(i);
230 if (item instanceof JMenu && ((JMenu) item).getItemCount() == 0)
232 webService.remove(i);
242 * Returns the proportion of its range that a scrollbar's position represents,
243 * as a value between 0 and 1. For example if the whole range is from 0 to
244 * 200, then a position of 40 gives proportion = 0.2.
246 * @see http://www.javalobby.org/java/forums/t33050.html#91885334
251 public static float getScrollBarProportion(JScrollBar scroll)
254 * The extent (scroll handle width) deduction gives the true operating range
255 * of possible positions.
257 int possibleRange = scroll.getMaximum() - scroll.getMinimum()
258 - scroll.getModel().getExtent();
259 float valueInRange = scroll.getValue()
260 - (scroll.getModel().getExtent() / 2f);
261 float proportion = valueInRange / possibleRange;
266 * Returns the scroll bar position in its range that would match the given
267 * proportion (between 0 and 1) of the whole. For example if the whole range
268 * is from 0 to 200, then a proportion of 0.25 gives position 50.
274 public static int getScrollValueForProportion(JScrollBar scrollbar,
278 * The extent (scroll handle width) deduction gives the true operating range
279 * of possible positions.
281 float fraction = proportion
282 * (scrollbar.getMaximum() - scrollbar.getMinimum() - scrollbar
283 .getModel().getExtent())
284 + (scrollbar.getModel().getExtent() / 2f);
285 return Math.min(Math.round(fraction), scrollbar.getMaximum());
288 public static void jvInitComponent(AbstractButton comp, String i18nString)
290 setColorAndFont(comp);
291 if (i18nString != null && !i18nString.isEmpty())
293 comp.setText(MessageManager.getString(i18nString));
297 public static void jvInitComponent(JComponent comp)
299 setColorAndFont(comp);
302 private static void setColorAndFont(JComponent comp)
304 comp.setBackground(Color.white);
305 comp.setFont(JvSwingUtils.getLabelFont());