/*-
* Copyright (C) 2007-2014 Erik Larsson
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
package org.catacombae.hfsexplorer;
import java.lang.reflect.InvocationTargetException;
import java.util.LinkedList;
import java.io.File;
import java.io.IOException;
import java.awt.Image;
import java.awt.Window;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Comparator;
import java.util.List;
import javax.swing.ImageIcon;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
/**
* This class should encapsulate all of the logic in HFSExplorer that is
* Java 6-specific. I.E. when compiling the source code using a JDK 1.5, the
* only class that should fail to compile would be this one.
*
* @author <a href="http://www.catacombae.org/" target="_top">Erik Larsson</a>
*/
public class Java6Util extends org.catacombae.util.Java6Util {
/**
* Checks whether openFile can be invoked for this platform. (Internally,
* checks whether the Java 6 operation Desktop.open(..) is supported for the
* currently running platform.<br>
* <b>Invoking this method on a non-Java 6 JRE will cause a class loading
* exception.</b>
*
* @return whether openFile can be invoked for this platform.
*/
public static boolean canOpen() {
try {
return canOpenInternal();
} catch(Exception e) {
if(e instanceof InvocationTargetException) {
Throwable cause = e.getCause();
if(cause instanceof RuntimeException) {
throw (RuntimeException) cause;
}
}
throw new RuntimeException(e);
}
}
private static boolean canOpenInternal()
throws ClassNotFoundException, NoSuchMethodException,
InvocationTargetException, IllegalAccessException,
NoSuchFieldException
{
Class<?> desktopClass = Class.forName("java.awt.Desktop");
Class<?> desktopActionClass = Class.forName("java.awt.Desktop$Action");
/* Desktop desktop = Desktop.getDesktop(); */
Method desktopGetDesktopMethod = desktopClass.getMethod("getDesktop");
Object desktopObject = desktopGetDesktopMethod.invoke(null);
/* Desktop.Action openAction = Desktop.Action.OPEN); */
Field desktopActionOpenField = desktopActionClass.getField("OPEN");
Object openActionObject = desktopActionOpenField.get(null);
/* return desktop.isSupported(openAction); */
Method desktopIsSupportedMethod =
desktopClass.getMethod("isSupported", desktopActionClass);
Object returnObject =
desktopIsSupportedMethod.invoke(desktopObject,
openActionObject);
if(!(returnObject instanceof Boolean)) {
throw new RuntimeException("Unexpected type returned from " +
"java.awt.Desktop.isSupported(java.awt.Desktop.Action): " +
returnObject.getClass());
}
return ((Boolean) returnObject).booleanValue();
}
/**
* Sends an OS signal via Java6's Desktop.open() method to open the
* specified file with its default handler.<br>
* <b>Invoking this method on a non-Java 6 JRE will cause a class loading
* exception.</b>
*
* @param f the file to open.
* @throws java.io.IOException if the file could not be opened.
*/
public static void openFile(File f) throws IOException {
try {
openFileInternal(f);
} catch(Exception e) {
if(e instanceof InvocationTargetException) {
Throwable cause = e.getCause();
if(cause instanceof RuntimeException) {
throw (RuntimeException) cause;
}
else if(cause instanceof IOException) {
throw (IOException) cause;
}
}
throw new RuntimeException(e);
}
}
private static void openFileInternal(File f)
throws ClassNotFoundException, NoSuchMethodException,
InvocationTargetException, IllegalAccessException,
NoSuchFieldException
{
Class<?> desktopClass = Class.forName("java.awt.Desktop");
/* Desktop desktop = Desktop.getDesktop(); */
Method desktopGetDesktopMethod = desktopClass.getMethod("getDesktop");
Object desktopObject = desktopGetDesktopMethod.invoke(null);
/* desktop.openFile(f); */
Method desktopOpenFileMethod =
desktopClass.getMethod("open", File.class);
desktopOpenFileMethod.invoke(desktopObject, f);
}
/**
* Sets the icon images for the specified Window. Java 6 supports icon
* images of multiple sizes to better adapt across platforms.<br>
* <b>Invoking this method on a non-Java 6 JRE will cause a class loading
* exception.</b>
*
* @param icons the different sizes of icon images that should be displayed
* for the window.
* @param window the window that the icons should be applied to.
*/
public static void setIconImages(ImageIcon[] icons, Window window) {
LinkedList<Image> iconImages = new LinkedList<Image>();
for(ImageIcon ii : icons)
iconImages.addLast(ii.getImage());
try {
Class<? extends Window> c = window.getClass();
Method m = c.getMethod("setIconImages", List.class);
m.invoke(window, iconImages);
} catch(NoSuchMethodException ex) {
throw new RuntimeException(ex);
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex);
} catch (IllegalArgumentException ex) {
throw new RuntimeException(ex);
} catch (InvocationTargetException ex) {
final Throwable cause = ex.getCause();
if(cause instanceof RuntimeException) {
throw (RuntimeException) cause;
}
else {
throw new RuntimeException(ex);
}
}
}
/**
* Adds a row sorter to <code>table</code> with the specified table model. Optionally, a list of
* Comparators can be supplied, one for each column, that specify the correct way of comparing
* the objects in that column. Null values means the default comparator will be used.<br>
* <b>Only Java 6+ virtual machines will support this, so check first with isJava6OrHigher() or
* risk to crash your program.</b>
*
* @param table
* @param tableModel
* @param defaultSortColumn the column on which to sort on by default.
* @param columnComparators
*/
public static void addRowSorter(JTable table, DefaultTableModel tableModel,
int defaultSortColumn, List<Comparator<?>> columnComparators) {
try {
final Class<? extends Object> rowSorterClass =
Class.forName("javax.swing.RowSorter");
final Class<? extends Object> tableRowSorterClass =
Class.forName("javax.swing.table.TableRowSorter");
final Method tableRowSorterSetComparatorMethod =
tableRowSorterClass.getMethod("setComparator", int.class,
Comparator.class);
final Method tableRowSorterToggleSortOrderMethod =
tableRowSorterClass.getMethod("toggleSortOrder", int.class);
final Object sorter =
tableRowSorterClass.getConstructor(TableModel.class).
newInstance(tableModel);
int i = 0;
for(Comparator<?> c : columnComparators) {
if(c != null) {
tableRowSorterSetComparatorMethod.invoke(sorter, i, c);
}
++i;
}
tableRowSorterToggleSortOrderMethod.invoke(sorter,
defaultSortColumn);
Class<? extends JTable> c = table.getClass();
Method m = c.getMethod("setRowSorter", rowSorterClass);
m.invoke(table, sorter);
} catch(ClassNotFoundException ex) {
throw new RuntimeException(ex);
} catch(InstantiationException ex) {
throw new RuntimeException(ex);
} catch(NoSuchMethodException ex) {
throw new RuntimeException(ex);
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex);
} catch (IllegalArgumentException ex) {
throw new RuntimeException(ex);
} catch (InvocationTargetException ex) {
final Throwable cause = ex.getCause();
if(cause instanceof RuntimeException) {
throw (RuntimeException) cause;
}
else {
throw new RuntimeException(ex);
}
}
}
}