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 java.awt.event.MouseEvent;
26 * System platform information used by Applet and Application
32 private static Boolean isAMac = null, isWindows = null;
34 private static Boolean isHeadless = null;
37 * sorry folks - Macs really are different
39 * @return true if we do things in a special way.
41 public static boolean isAMac()
45 isAMac = System.getProperty("os.name").indexOf("Mac") > -1;
48 return isAMac.booleanValue();
53 * Check if we are on a Microsoft plaform...
55 * @return true if we have to cope with another platform variation
57 public static boolean isWindows()
59 if (isWindows == null)
61 isWindows = System.getProperty("os.name").indexOf("Win") > -1;
63 return isWindows.booleanValue();
68 * @return true if we are running in non-interactive no UI mode
70 public static boolean isHeadless()
72 if (isHeadless == null)
74 isHeadless = "true".equals(System.getProperty("java.awt.headless"));
81 * @return nominal maximum command line length for this platform
83 public static int getMaxCommandLineLength()
85 // TODO: determine nominal limits for most platforms.
86 return 2046; // this is the max length for a windows NT system.
90 * escape a string according to the local platform's escape character
93 * @return escaped file
95 public static String escapeString(String file)
97 StringBuffer f = new StringBuffer();
99 while ((p = file.indexOf('\\', lastp)) > -1)
101 f.append(file.subSequence(lastp, p));
105 f.append(file.substring(lastp));
110 * Answers true if the mouse event has Meta-down (Command key on Mac) or
111 * Ctrl-down (on other o/s). Note this answers _false_ if the Ctrl key is
112 * pressed instead of the Meta/Cmd key on Mac. To test for Ctrl-click on Mac,
113 * you can use e.isPopupTrigger().
118 public static boolean isControlDown(MouseEvent e)
120 boolean aMac = isAMac();
121 return isControlDown(e, aMac);
125 * Overloaded version of method (to allow unit testing)
131 protected static boolean isControlDown(MouseEvent e, boolean aMac)
136 * answer false for right mouse button
138 if (e.isPopupTrigger())
142 return (jalview.util.ShortcutKeyMaskExWrapper.getMenuShortcutKeyMaskEx() // .getMenuShortcutKeyMaskEx()
143 & e.getModifiersEx()) != 0; // getModifiers()) != 0;
145 return e.isControlDown();
149 * A (case sensitive) file path comparator that ignores the difference between /
156 public static boolean pathEquals(String path1, String path2)
160 return path2 == null;
166 String p1 = path1.replace('\\', '/');
167 String p2 = path2.replace('\\', '/');
168 return p1.equals(p2);