X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FPlatform.java;h=bb3f7fa61082fa1fe1b1ef6c940c12cdfe13a327;hb=f5d6c0018555b2c453c2c0354c84cd5d2d81e3b9;hp=2eec73c0e830625289eb5c862092e794f73abc52;hpb=93a72f0818c42402e0c7312986fbf8c8bd7255be;p=jalview.git diff --git a/src/jalview/util/Platform.java b/src/jalview/util/Platform.java index 2eec73c..bb3f7fa 100644 --- a/src/jalview/util/Platform.java +++ b/src/jalview/util/Platform.java @@ -1,44 +1,198 @@ -/* - * Jalview - A Sequence Alignment Editor and Viewer (Development Version 2.4.1) - * Copyright (C) 2009 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle - * - * This program 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 2 - * of the License, or (at your option) any later version. - * - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA - */ -package jalview.util; - -/** - * System platform information used by Applet and Application - * - * @author Jim Procter - */ -public class Platform -{ - /** - * sorry folks - Macs really are different - * - * @return true if we do things in a special way. - */ - public boolean isAMac() - { - return java.lang.System.getProperty("os.name").indexOf("Mac") > -1; - - } - public boolean isHeadless() - { - String hdls = java.lang.System.getProperty("java.awt.headless"); - - return hdls!=null && hdls.equals("true"); - } -} +/* + * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$) + * Copyright (C) $$Year-Rel$$ 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 . + * The Jalview Authors are detailed in the 'AUTHORS' file. + */ +package jalview.util; + +import java.awt.Toolkit; +import java.awt.event.InputEvent; +import java.awt.event.MouseEvent; + +import javax.swing.SwingUtilities; + +/** + * System platform information used by Applet and Application + * + * @author Jim Procter + */ +public class Platform +{ + + private static Boolean isNoJSMac = null, isNoJSWindows = null; + + private static Boolean isHeadless = null; + + /** + * sorry folks - Macs really are different + * + * BH: disabled for SwingJS -- will need to check key-press issues + * + * @return true if we do things in a special way. + */ + public static boolean isAMacAndNotJS() + { + if (isNoJSMac == null) + { + isNoJSMac = /** @j2sNative false && */ + System.getProperty("os.name").indexOf("Mac") > -1; + } + + return isNoJSMac.booleanValue(); + + } + + /** + * Check if we are on a Microsoft plaform... + * + * @return true if we have to cope with another platform variation + */ + public static boolean isWindowsAndNotJS() + { + if (isNoJSWindows == null) + { + isNoJSWindows = /** @j2sNative false && */ + System.getProperty("os.name").indexOf("Win") > -1; + } + return isNoJSWindows.booleanValue(); + } + +// BH - preferred: +// +// /** +// * @return true if this is a Mac +// */ +// private static boolean isAMac() +// { +// if (isAMac == null) +// { +// isAMac = System.getProperty("os.name").indexOf("Mac") > -1; +// } +// +// return isAMac.booleanValue(); +// +// } +// +// /** +// * Check if we are on a Microsoft plaform... +// * +// * @return true if we have to cope with another platform variation +// */ +// private static boolean isWindows() +// { +// if (isWindows == null) +// { +// isWindows = System.getProperty("os.name").indexOf("Win") > -1; +// } +// return isWindows.booleanValue(); +// } +// + + /** + * + * @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; + } + + /** + * + * @return nominal maximum command line length for this platform + */ + public static int getMaxCommandLineLength() + { + // TODO: determine nominal limits for most platforms. + return 2046; // this is the max length for a windows NT system. + } + + /** + * escape a string according to the local platform's escape character + * + * @param file + * @return escaped file + */ + public static String escapeString(String file) + { + StringBuffer f = new StringBuffer(); + int p = 0, lastp = 0; + while ((p = file.indexOf('\\', lastp)) > -1) + { + f.append(file.subSequence(lastp, p)); + f.append("\\\\"); + lastp = p + 1; + } + f.append(file.substring(lastp)); + return f.toString(); + } + + /** + * 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-pressed on Mac, + * you can use e.isPopupTrigger(). + * + * @param e + * @return + */ + public static boolean isControlDown(MouseEvent e) + { + boolean aMac = isAMacAndNotJS(); + return isControlDown(e, aMac); + } + + /** + * Overloaded version of method (to allow unit testing) + * + * @param e + * @param aMac + * @return + */ + protected static boolean isControlDown(MouseEvent e, boolean aMac) + { + if (aMac) + { + /* + * answer false for right mouse button + */ + if (e.isPopupTrigger()) + { + return false; + } + return (Toolkit.getDefaultToolkit().getMenuShortcutKeyMask() + & e.getModifiers()) != 0; + // could we use e.isMetaDown() here? + } + return e.isControlDown(); + } + + public static boolean isWinRightButton(MouseEvent e) + { + return !isAMacAndNotJS() && SwingUtilities.isRightMouseButton(e); + } + + public static boolean isWinMiddleButton(MouseEvent evt) + { + return !isAMacAndNotJS() && ((evt.getModifiers() & InputEvent.BUTTON2_MASK) == InputEvent.BUTTON2_MASK); + } +}