*/
package jalview.util;
-import java.awt.Toolkit;
import java.awt.event.MouseEvent;
/**
*/
public class Platform
{
+ private static Boolean isAMac = null, isWindows = null;
+
+ private static Boolean isHeadless = null;
+
/**
* sorry folks - Macs really are different
*
*/
public static boolean isAMac()
{
- return java.lang.System.getProperty("os.name").indexOf("Mac") > -1;
+ if (isAMac == null)
+ {
+ isAMac = System.getProperty("os.name").indexOf("Mac") > -1;
+ }
+
+ return isAMac.booleanValue();
}
- public static boolean isHeadless()
+ /**
+ * Check if we are on a Microsoft plaform...
+ *
+ * @return true if we have to cope with another platform variation
+ */
+ public static boolean isWindows()
{
- String hdls = java.lang.System.getProperty("java.awt.headless");
+ if (isWindows == null)
+ {
+ isWindows = System.getProperty("os.name").indexOf("Win") > -1;
+ }
+ return isWindows.booleanValue();
+ }
- return hdls != null && hdls.equals("true");
+ /**
+ *
+ * @return true if we are running in non-interactive no UI mode
+ */
+ public static boolean isHeadless()
+ {
+ if (isHeadless == null)
+ {
+ isHeadless = "true".equals(System.getProperty("java.awt.headless"));
+ }
+ return isHeadless;
}
/**
}
/**
- * escape a string according to the local platform's escape character
+ * Answers the input with every backslash replaced with a double backslash (an
+ * 'escaped' single backslash)
+ *
+ * @param s
+ * @return
+ */
+ public static String escapeBackslashes(String s)
+ {
+ return s == null ? null : s.replace("\\", "\\\\");
+ }
+
+ /**
+ * Answers true if the mouse event has Meta-down (Command key on Mac) or
+ * Ctrl-down (on other o/s). Note this answers _false_ if the Ctrl key is
+ * pressed instead of the Meta/Cmd key on Mac. To test for Ctrl-click on Mac,
+ * you can use e.isPopupTrigger().
+ *
+ * @param e
+ * @return
+ */
+ public static boolean isControlDown(MouseEvent e)
+ {
+ boolean aMac = isAMac();
+ return isControlDown(e, aMac);
+ }
+
+ /**
+ * Overloaded version of method (to allow unit testing)
*
- * @param file
- * @return escaped file
+ * @param e
+ * @param aMac
+ * @return
*/
- public static String escapeString(String file)
+ protected static boolean isControlDown(MouseEvent e, boolean aMac)
{
- StringBuffer f = new StringBuffer();
- int p = 0, lastp = 0;
- while ((p = file.indexOf('\\', lastp)) > -1)
+ if (aMac)
{
- f.append(file.subSequence(lastp, p));
- f.append("\\\\");
- lastp = p + 1;
+ /*
+ * answer false for right mouse button
+ */
+ if (e.isPopupTrigger())
+ {
+ return false;
+ }
+ return (jalview.util.ShortcutKeyMaskExWrapper.getMenuShortcutKeyMaskEx() // .getMenuShortcutKeyMaskEx()
+ & jalview.util.ShortcutKeyMaskExWrapper
+ .getModifiersEx(e)) != 0; // getModifiers()) != 0;
}
- f.append(file.substring(lastp));
- return f.toString();
+ return e.isControlDown();
}
- public static boolean isControlDown(MouseEvent e)
+ /**
+ * A (case sensitive) file path comparator that ignores the difference between /
+ * and \
+ *
+ * @param path1
+ * @param path2
+ * @return
+ */
+ public static boolean pathEquals(String path1, String path2)
{
- return (jalview.util.Platform.isAMac() ? (Toolkit.getDefaultToolkit()
- .getMenuShortcutKeyMask() & e.getModifiers()) != 0 : e
- .isControlDown());
+ if (path1 == null)
+ {
+ return path2 == null;
+ }
+ if (path2 == null)
+ {
+ return false;
+ }
+ String p1 = path1.replace('\\', '/');
+ String p2 = path2.replace('\\', '/');
+ return p1.equals(p2);
}
}