package net.sourceforge.tuned.ui; import static java.util.Collections.*; import static javax.swing.JOptionPane.*; import java.awt.Color; import java.awt.Component; import java.awt.Dimension; import java.awt.Frame; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Point; import java.awt.Window; import java.awt.dnd.DnDConstants; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseEvent; import java.awt.image.BufferedImage; import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.List; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JOptionPane; import javax.swing.KeyStroke; import javax.swing.ListSelectionModel; import javax.swing.SwingUtilities; import javax.swing.Timer; import javax.swing.event.MouseInputListener; import javax.swing.plaf.basic.BasicTableUI; import javax.swing.text.JTextComponent; import javax.swing.undo.UndoManager; public final class TunedUtilities { public static final Color TRANSLUCENT = new Color(255, 255, 255, 0); public static void checkEventDispatchThread() { if (!SwingUtilities.isEventDispatchThread()) { throw new IllegalStateException("Method must be accessed from the Swing Event Dispatch Thread, but was called on Thread \"" + Thread.currentThread().getName() + "\""); } } public static Color derive(Color color, float alpha) { return new Color(((int) ((alpha * 255)) << 24) | (color.getRGB() & 0x00FFFFFF), true); } public static boolean isShiftDown(ActionEvent evt) { return checkModifiers(evt.getModifiers(), ActionEvent.SHIFT_MASK); } public static boolean checkModifiers(int modifiers, int mask) { return ((modifiers & mask) == mask); } public static JButton createImageButton(Action action) { JButton button = new JButton(action); button.setHideActionText(true); button.setOpaque(false); return button; } public static void installAction(JComponent component, KeyStroke keystroke, Action action) { Object key = action.getValue(Action.NAME); if (key == null) throw new IllegalArgumentException("Action must have a name"); component.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(keystroke, key); component.getActionMap().put(key, action); } public static UndoManager installUndoSupport(JTextComponent component) { final UndoManager undoSupport = new UndoManager(); // install undo listener component.getDocument().addUndoableEditListener(undoSupport); // install undo action installAction(component, KeyStroke.getKeyStroke("control Z"), new AbstractAction("Undo") { @Override public void actionPerformed(ActionEvent e) { if (undoSupport.canUndo()) undoSupport.undo(); } }); // install redo action installAction(component, KeyStroke.getKeyStroke("control Y"), new AbstractAction("Redo") { @Override public void actionPerformed(ActionEvent e) { if (undoSupport.canRedo()) undoSupport.redo(); } }); return undoSupport; } public static boolean isMaximized(Frame frame) { return (frame.getExtendedState() & Frame.MAXIMIZED_BOTH) != 0; } public static List showMultiValueInputDialog(final String text, final String initialValue, final String title, final Component parent) throws InvocationTargetException, InterruptedException { String input = showInputDialog(text, initialValue, title, parent); if (input == null || input.isEmpty()) { return emptyList(); } for (char separator : new char[] { '|', ';', ',' }) { if (input.indexOf(separator) >= 0) { List values = new ArrayList(); for (String field : input.split(Character.toString(separator))) { if (field.length() > 0) { values.add(field); } } if (values.size() > 0) { return values; } } } return singletonList(input); } public static String showInputDialog(final String text, final String initialValue, final String title, final Component parent) throws InvocationTargetException, InterruptedException { final StringBuilder buffer = new StringBuilder(); SwingUtilities.invokeAndWait(new Runnable() { @Override public void run() { Object value = JOptionPane.showInputDialog(parent, text, title, PLAIN_MESSAGE, null, null, initialValue); if (value != null) { buffer.append(value); } } }); return buffer.length() == 0 ? null : buffer.toString(); } public static Window getWindow(Object component) { if (component instanceof Window) return (Window) component; if (component instanceof Component) return SwingUtilities.getWindowAncestor((Component) component); return null; } public static Point getOffsetLocation(Window owner) { if (owner == null) { Window[] toplevel = Window.getOwnerlessWindows(); if (toplevel.length == 0) return new Point(120, 80); // assume first top-level window as point of reference owner = toplevel[0]; } Point p = owner.getLocation(); Dimension d = owner.getSize(); return new Point(p.x + d.width / 4, p.y + d.height / 7); } public static Image getImage(Icon icon) { if (icon == null) return null; if (icon instanceof ImageIcon) return ((ImageIcon) icon).getImage(); // draw icon into a new image BufferedImage image = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(), BufferedImage.TYPE_INT_ARGB); Graphics2D g2d = image.createGraphics(); icon.paintIcon(null, g2d, 0, 0); g2d.dispose(); return image; } public static Dimension getDimension(Icon icon) { return new Dimension(icon.getIconWidth(), icon.getIconHeight()); } public static Timer invokeLater(int delay, final Runnable runnable) { Timer timer = new Timer(delay, new ActionListener() { @Override public void actionPerformed(ActionEvent e) { runnable.run(); } }); timer.setRepeats(false); timer.start(); return timer; } /** * When trying to drag a row of a multi-select JTable, it will start selecting rows instead * of initiating a drag. This TableUI will give the JTable proper dnd behaviour. */ public static class DragDropRowTableUI extends BasicTableUI { @Override protected MouseInputListener createMouseInputListener() { return new DragDropRowMouseInputHandler(); } protected class DragDropRowMouseInputHandler extends MouseInputHandler { @Override public void mouseDragged(MouseEvent e) { // Only do special handling if we are drag enabled with multiple selection if (table.getDragEnabled() && table.getSelectionModel().getSelectionMode() == ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) { table.getTransferHandler().exportAsDrag(table, e, DnDConstants.ACTION_COPY); } else { super.mouseDragged(e); } } } } /** * Dummy constructor to prevent instantiation. */ private TunedUtilities() { throw new UnsupportedOperationException(); } }