As of Java 2 platform v1.3 this class is no longer used.
* Instead JTable
* overrides processKeyBinding to dispatch the event to
* the current TableCellEditor.
*/
public class KeyHandler implements KeyListener {
// NOTE: This class exists only for backward compatability. All
// its functionality has been moved into Handler. If you need to add
// new functionality add it to the Handler, but make sure this
// class calls into the Handler.
public void keyPressed(KeyEvent e) {
getHandler().keyPressed(e);
}
public void keyReleased(KeyEvent e) {
getHandler().keyReleased(e);
}
public void keyTyped(KeyEvent e) {
getHandler().keyTyped(e);
}
}
//
// The Table's focus listener
//
/**
* This class should be treated as a "protected" inner class.
* Instantiate it only within subclasses of {@code BasicTableUI}.
*/
public class FocusHandler implements FocusListener {
// NOTE: This class exists only for backward compatability. All
// its functionality has been moved into Handler. If you need to add
// new functionality add it to the Handler, but make sure this
// class calls into the Handler.
public void focusGained(FocusEvent e) {
getHandler().focusGained(e);
}
public void focusLost(FocusEvent e) {
getHandler().focusLost(e);
}
}
//
// The Table's mouse and mouse motion listeners
//
/**
* This class should be treated as a "protected" inner class.
* Instantiate it only within subclasses of BasicTableUI.
*/
public class MouseInputHandler implements MouseInputListener {
// NOTE: This class exists only for backward compatability. All
// its functionality has been moved into Handler. If you need to add
// new functionality add it to the Handler, but make sure this
// class calls into the Handler.
public void mouseClicked(MouseEvent e) {
getHandler().mouseClicked(e);
}
public void mousePressed(MouseEvent e) {
getHandler().mousePressed(e);
}
public void mouseReleased(MouseEvent e) {
getHandler().mouseReleased(e);
}
public void mouseEntered(MouseEvent e) {
getHandler().mouseEntered(e);
}
public void mouseExited(MouseEvent e) {
getHandler().mouseExited(e);
}
public void mouseMoved(MouseEvent e) {
getHandler().mouseMoved(e);
}
public void mouseDragged(MouseEvent e) {
getHandler().mouseDragged(e);
}
}
private class Handler implements FocusListener, MouseInputListener,
PropertyChangeListener, ListSelectionListener, ActionListener,
BeforeDrag {
// FocusListener
private void repaintLeadCell( ) {
int lr = getAdjustedLead(table, true);
int lc = getAdjustedLead(table, false);
if (lr < 0 || lc < 0) {
return;
}
Rectangle dirtyRect = table.getCellRect(lr, lc, false);
table.repaint(dirtyRect);
}
public void focusGained(FocusEvent e) {
repaintLeadCell();
}
public void focusLost(FocusEvent e) {
repaintLeadCell();
}
// KeyListener
public void keyPressed(KeyEvent e) { }
public void keyReleased(KeyEvent e) { }
public void keyTyped(KeyEvent e) {
KeyStroke keyStroke = KeyStroke.getKeyStroke(e.getKeyChar(),
e.getModifiers());
// We register all actions using ANCESTOR_OF_FOCUSED_COMPONENT
// which means that we might perform the appropriate action
// in the table and then forward it to the editor if the editor
// had focus. Make sure this doesn't happen by checking our
// InputMaps.
InputMap map = table.getInputMap(JComponent.WHEN_FOCUSED);
if (map != null && map.get(keyStroke) != null) {
return;
}
map = table.getInputMap(JComponent.
WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
if (map != null && map.get(keyStroke) != null) {
return;
}
keyStroke = KeyStroke.getKeyStrokeForEvent(e);
// The AWT seems to generate an unconsumed \r event when
// ENTER (\n) is pressed.
if (e.getKeyChar() == '\r') {
return;
}
int leadRow = getAdjustedLead(table, true);
int leadColumn = getAdjustedLead(table, false);
if (leadRow != -1 && leadColumn != -1 && !table.isEditing()) {
if (!table.editCellAt(leadRow, leadColumn)) {
return;
}
}
// Forwarding events this way seems to put the component
// in a state where it believes it has focus. In reality
// the table retains focus - though it is difficult for
// a user to tell, since the caret is visible and flashing.
// Calling table.requestFocus() here, to get the focus back to
// the table, seems to have no effect.
Component editorComp = table.getEditorComponent();
if (table.isEditing() && editorComp != null) {
if (editorComp instanceof JComponent) {
JComponent component = (JComponent)editorComp;
map = component.getInputMap(JComponent.WHEN_FOCUSED);
Object binding = (map != null) ? map.get(keyStroke) : null;
if (binding == null) {
map = component.getInputMap(JComponent.
WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
binding = (map != null) ? map.get(keyStroke) : null;
}
if (binding != null) {
ActionMap am = component.getActionMap();
Action action = (am != null) ? am.get(binding) : null;
if (action != null && SwingUtilities.
notifyAction(action, keyStroke, e, component,
e.getModifiers())) {
e.consume();
}
}
}
}
}
// MouseInputListener
// Component receiving mouse events during editing.
// May not be editorComponent.
private Component dispatchComponent;
public void mouseClicked(MouseEvent e) {}
private void setDispatchComponent(MouseEvent e) {
Component editorComponent = table.getEditorComponent();
Point p = e.getPoint();
Point p2 = SwingUtilities.convertPoint(table, p, editorComponent);
dispatchComponent =
SwingUtilities.getDeepestComponentAt(editorComponent,
p2.x, p2.y);
SwingUtilities2.setSkipClickCount(dispatchComponent,
e.getClickCount() - 1);
}
private boolean repostEvent(MouseEvent e) {
// Check for isEditing() in case another event has
// caused the editor to be removed. See bug #4306499.
if (dispatchComponent == null || !table.isEditing()) {
return false;
}
MouseEvent e2 = SwingUtilities.convertMouseEvent(table, e,
dispatchComponent);
dispatchComponent.dispatchEvent(e2);
return true;
}
private void setValueIsAdjusting(boolean flag) {
table.getSelectionModel().setValueIsAdjusting(flag);
table.getColumnModel().getSelectionModel().
setValueIsAdjusting(flag);
}
// The row and column where the press occurred and the
// press event itself
private int pressedRow;
private int pressedCol;
private MouseEvent pressedEvent;
// Whether or not the mouse press (which is being considered as part
// of a drag sequence) also caused the selection change to be fully
// processed.
private boolean dragPressDidSelection;
// Set to true when a drag gesture has been fully recognized and DnD
// begins. Use this to ignore further mouse events which could be
// delivered if DnD is cancelled (via ESCAPE for example)
private boolean dragStarted;
// Whether or not we should start the editing timer on release
private boolean shouldStartTimer;
// To cache the return value of pointOutsidePrefSize since we use
// it multiple times.
private boolean outsidePrefSize;
// Used to delay the start of editing.
private Timer timer = null;
private boolean canStartDrag() {
if (pressedRow == -1 || pressedCol == -1) {
return false;
}
if (isFileList) {
return !outsidePrefSize;
}
// if this is a single selection table
if ((table.getSelectionModel().getSelectionMode() ==
ListSelectionModel.SINGLE_SELECTION) &&
(table.getColumnModel().getSelectionModel().getSelectionMode() ==
ListSelectionModel.SINGLE_SELECTION)) {
return true;
}
return table.isCellSelected(pressedRow, pressedCol);
}
public void mousePressed(MouseEvent e) {
if (SwingUtilities2.shouldIgnore(e, table)) {
return;
}
if (table.isEditing() && !table.getCellEditor().stopCellEditing()) {
Component editorComponent = table.getEditorComponent();
if (editorComponent != null && !editorComponent.hasFocus()) {
SwingUtilities2.compositeRequestFocus(editorComponent);
}
return;
}
Point p = e.getPoint();
pressedRow = table.rowAtPoint(p);
pressedCol = table.columnAtPoint(p);
outsidePrefSize = pointOutsidePrefSize(pressedRow, pressedCol, p);
if (isFileList) {
shouldStartTimer =
table.isCellSelected(pressedRow, pressedCol) &&
!e.isShiftDown() &&
!BasicGraphicsUtils.isMenuShortcutKeyDown(e) &&
!outsidePrefSize;
}
if (table.getDragEnabled()) {
mousePressedDND(e);
} else {
SwingUtilities2.adjustFocus(table);
if (!isFileList) {
setValueIsAdjusting(true);
}
adjustSelection(e);
}
}
private void mousePressedDND(MouseEvent e) {
pressedEvent = e;
boolean grabFocus = true;
dragStarted = false;
if (canStartDrag() && DragRecognitionSupport.mousePressed(e)) {
dragPressDidSelection = false;
if (BasicGraphicsUtils.isMenuShortcutKeyDown(e) && isFileList) {
// do nothing for control - will be handled on release
// or when drag starts
return;
} else if (!e.isShiftDown() && table.isCellSelected(pressedRow, pressedCol)) {
// clicking on something that's already selected
// and need to make it the lead now
table.getSelectionModel().addSelectionInterval(pressedRow,
pressedRow);
table.getColumnModel().getSelectionModel().
addSelectionInterval(pressedCol, pressedCol);
return;
}
dragPressDidSelection = true;
// could be a drag initiating event - don't grab focus
grabFocus = false;
} else if (!isFileList) {
// When drag can't happen, mouse drags might change the selection in the table
// so we want the isAdjusting flag to be set
setValueIsAdjusting(true);
}
if (grabFocus) {
SwingUtilities2.adjustFocus(table);
}
adjustSelection(e);
}
private void adjustSelection(MouseEvent e) {
// Fix for 4835633
if (outsidePrefSize) {
// If shift is down in multi-select, we should just return.
// For single select or non-shift-click, clear the selection
if (e.getID() == MouseEvent.MOUSE_PRESSED &&
(!e.isShiftDown() ||
table.getSelectionModel().getSelectionMode() ==
ListSelectionModel.SINGLE_SELECTION)) {
table.clearSelection();
TableCellEditor tce = table.getCellEditor();
if (tce != null) {
tce.stopCellEditing();
}
}
return;
}
// The autoscroller can generate drag events outside the
// table's range.
if ((pressedCol == -1) || (pressedRow == -1)) {
return;
}
boolean dragEnabled = table.getDragEnabled();
if (!dragEnabled && !isFileList && table.editCellAt(pressedRow, pressedCol, e)) {
setDispatchComponent(e);
repostEvent(e);
}
CellEditor editor = table.getCellEditor();
if (dragEnabled || editor == null || editor.shouldSelectCell(e)) {
table.changeSelection(pressedRow, pressedCol,
BasicGraphicsUtils.isMenuShortcutKeyDown(e),
e.isShiftDown());
}
}
public void valueChanged(ListSelectionEvent e) {
if (timer != null) {
timer.stop();
timer = null;
}
}
public void actionPerformed(ActionEvent ae) {
table.editCellAt(pressedRow, pressedCol, null);
Component editorComponent = table.getEditorComponent();
if (editorComponent != null && !editorComponent.hasFocus()) {
SwingUtilities2.compositeRequestFocus(editorComponent);
}
return;
}
private void maybeStartTimer() {
if (!shouldStartTimer) {
return;
}
if (timer == null) {
timer = new Timer(1200, this);
timer.setRepeats(false);
}
timer.start();
}
public void mouseReleased(MouseEvent e) {
if (SwingUtilities2.shouldIgnore(e, table)) {
return;
}
if (table.getDragEnabled()) {
mouseReleasedDND(e);
} else {
if (isFileList) {
maybeStartTimer();
}
}
pressedEvent = null;
repostEvent(e);
dispatchComponent = null;
setValueIsAdjusting(false);
}
private void mouseReleasedDND(MouseEvent e) {
MouseEvent me = DragRecognitionSupport.mouseReleased(e);
if (me != null) {
SwingUtilities2.adjustFocus(table);
if (!dragPressDidSelection) {
adjustSelection(me);
}
}
if (!dragStarted) {
if (isFileList) {
maybeStartTimer();
return;
}
Point p = e.getPoint();
if (pressedEvent != null &&
table.rowAtPoint(p) == pressedRow &&
table.columnAtPoint(p) == pressedCol &&
table.editCellAt(pressedRow, pressedCol, pressedEvent)) {
setDispatchComponent(pressedEvent);
repostEvent(pressedEvent);
// This may appear completely odd, but must be done for backward
// compatibility reasons. Developers have been known to rely on
// a call to shouldSelectCell after editing has begun.
CellEditor ce = table.getCellEditor();
if (ce != null) {
ce.shouldSelectCell(pressedEvent);
}
}
}
}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void dragStarting(MouseEvent me) {
dragStarted = true;
if (BasicGraphicsUtils.isMenuShortcutKeyDown(me) && isFileList) {
table.getSelectionModel().addSelectionInterval(pressedRow,
pressedRow);
table.getColumnModel().getSelectionModel().
addSelectionInterval(pressedCol, pressedCol);
}
pressedEvent = null;
}
public void mouseDragged(MouseEvent e) {
if (SwingUtilities2.shouldIgnore(e, table)) {
return;
}
if (table.getDragEnabled() &&
(DragRecognitionSupport.mouseDragged(e, this) || dragStarted)) {
return;
}
repostEvent(e);
// Check isFileList:
// Until we support drag-selection, dragging should not change
// the selection (act like single-select).
if (isFileList || table.isEditing()) {
return;
}
Point p = e.getPoint();
int row = table.rowAtPoint(p);
int column = table.columnAtPoint(p);
// The autoscroller can generate drag events outside the
// table's range.
if ((column == -1) || (row == -1)) {
return;
}
table.changeSelection(row, column,
BasicGraphicsUtils.isMenuShortcutKeyDown(e), true);
}
// PropertyChangeListener
public void propertyChange(PropertyChangeEvent event) {
String changeName = event.getPropertyName();
if ("componentOrientation" == changeName) {
InputMap inputMap = getInputMap(
JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
SwingUtilities.replaceUIInputMap(table,
JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT,
inputMap);
JTableHeader header = table.getTableHeader();
if (header != null) {
header.setComponentOrientation(
(ComponentOrientation)event.getNewValue());
}
} else if ("dropLocation" == changeName) {
JTable.DropLocation oldValue = (JTable.DropLocation)event.getOldValue();
repaintDropLocation(oldValue);
repaintDropLocation(table.getDropLocation());
} else if ("Table.isFileList" == changeName) {
isFileList = Boolean.TRUE.equals(table.getClientProperty("Table.isFileList"));
table.revalidate();
table.repaint();
if (isFileList) {
table.getSelectionModel().addListSelectionListener(getHandler());
} else {
table.getSelectionModel().removeListSelectionListener(getHandler());
timer = null;
}
} else if ("selectionModel" == changeName) {
if (isFileList) {
ListSelectionModel old = (ListSelectionModel)event.getOldValue();
old.removeListSelectionListener(getHandler());
table.getSelectionModel().addListSelectionListener(getHandler());
}
}
}
private void repaintDropLocation(JTable.DropLocation loc) {
if (loc == null) {
return;
}
if (!loc.isInsertRow() && !loc.isInsertColumn()) {
Rectangle rect = table.getCellRect(loc.getRow(), loc.getColumn(), false);
if (rect != null) {
table.repaint(rect);
}
return;
}
if (loc.isInsertRow()) {
Rectangle rect = extendRect(getHDropLineRect(loc), true);
if (rect != null) {
table.repaint(rect);
}
}
if (loc.isInsertColumn()) {
Rectangle rect = extendRect(getVDropLineRect(loc), false);
if (rect != null) {
table.repaint(rect);
}
}
}
}
/*
* Returns true if the given point is outside the preferredSize of the
* item at the given row of the table. (Column must be 0).
* Returns false if the "Table.isFileList" client property is not set.
*/
private boolean pointOutsidePrefSize(int row, int column, Point p) {
if (!isFileList) {
return false;
}
return SwingUtilities2.pointOutsidePrefSize(table, row, column, p);
}
//
// Factory methods for the Listeners
//
private Handler getHandler() {
if (handler == null) {
handler = new Handler();
}
return handler;
}
/**
* Creates the key listener for handling keyboard navigation in the JTable.
*/
protected KeyListener createKeyListener() {
return null;
}
/**
* Creates the focus listener for handling keyboard navigation in the JTable.
*/
protected FocusListener createFocusListener() {
return getHandler();
}
/**
* Creates the mouse listener for the JTable.
*/
protected MouseInputListener createMouseInputListener() {
return getHandler();
}
//
// The installation/uninstall procedures and support
//
public static ComponentUI createUI(JComponent c) {
return new BasicTableUI();
}
// Installation
public void installUI(JComponent c) {
table = (JTable)c;
rendererPane = new CellRendererPane();
table.add(rendererPane);
installDefaults();
installDefaults2();
installListeners();
installKeyboardActions();
}
/**
* Initialize JTable properties, e.g. font, foreground, and background.
* The font, foreground, and background properties are only set if their
* current value is either null or a UIResource, other properties are set
* if the current value is null.
*
* @see #installUI
*/
protected void installDefaults() {
LookAndFeel.installColorsAndFont(table, "Table.background",
"Table.foreground", "Table.font");
// JTable's original row height is 16. To correctly display the
// contents on Linux we should have set it to 18, Windows 19 and
// Solaris 20. As these values vary so much it's too hard to
// be backward compatable and try to update the row height, we're
// therefor NOT going to adjust the row height based on font. If the
// developer changes the font, it's there responsability to update
// the row height.
LookAndFeel.installProperty(table, "opaque", Boolean.TRUE);
Color sbg = table.getSelectionBackground();
if (sbg == null || sbg instanceof UIResource) {
sbg = UIManager.getColor("Table.selectionBackground");
table.setSelectionBackground(sbg != null ? sbg : UIManager.getColor("textHighlight"));
}
Color sfg = table.getSelectionForeground();
if (sfg == null || sfg instanceof UIResource) {
sfg = UIManager.getColor("Table.selectionForeground");
table.setSelectionForeground(sfg != null ? sfg : UIManager.getColor("textHighlightText"));
}
Color gridColor = table.getGridColor();
if (gridColor == null || gridColor instanceof UIResource) {
gridColor = UIManager.getColor("Table.gridColor");
table.setGridColor(gridColor != null ? gridColor : Color.GRAY);
}
// install the scrollpane border
Container parent = SwingUtilities.getUnwrappedParent(table); // should be viewport
if (parent != null) {
parent = parent.getParent(); // should be the scrollpane
if (parent != null && parent instanceof JScrollPane) {
LookAndFeel.installBorder((JScrollPane)parent, "Table.scrollPaneBorder");
}
}
isFileList = Boolean.TRUE.equals(table.getClientProperty("Table.isFileList"));
}
private void installDefaults2() {
TransferHandler th = table.getTransferHandler();
if (th == null || th instanceof UIResource) {
table.setTransferHandler(defaultTransferHandler);
// default TransferHandler doesn't support drop
// so we don't want drop handling
if (table.getDropTarget() instanceof UIResource) {
table.setDropTarget(null);
}
}
}
/**
* Attaches listeners to the JTable.
*/
protected void installListeners() {
focusListener = createFocusListener();
keyListener = createKeyListener();
mouseInputListener = createMouseInputListener();
table.addFocusListener(focusListener);
table.addKeyListener(keyListener);
table.addMouseListener(mouseInputListener);
table.addMouseMotionListener(mouseInputListener);
table.addPropertyChangeListener(getHandler());
if (isFileList) {
table.getSelectionModel().addListSelectionListener(getHandler());
}
}
/**
* Register all keyboard actions on the JTable.
*/
protected void installKeyboardActions() {
LazyActionMap.installLazyActionMap(table, BasicTableUI.class,
"Table.actionMap");
InputMap inputMap = getInputMap(JComponent.
WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
SwingUtilities.replaceUIInputMap(table,
JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT,
inputMap);
}
InputMap getInputMap(int condition) {
if (condition == JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT) {
InputMap keyMap =
(InputMap)DefaultLookup.get(table, this,
"Table.ancestorInputMap");
InputMap rtlKeyMap;
if (table.getComponentOrientation().isLeftToRight() ||
((rtlKeyMap = (InputMap)DefaultLookup.get(table, this,
"Table.ancestorInputMap.RightToLeft")) == null)) {
return keyMap;
} else {
rtlKeyMap.setParent(keyMap);
return rtlKeyMap;
}
}
return null;
}
static void loadActionMap(LazyActionMap map) {
// IMPORTANT: There is a very close coupling between the parameters
// passed to the Actions constructor. Only certain parameter
// combinations are supported. For example, the following Action would
// not work as expected:
// new Actions(Actions.NEXT_ROW_CELL, 1, 4, false, true)
// Actions which move within the selection only (having a true
// inSelection parameter) require that one of dx or dy be
// zero and the other be -1 or 1. The point of this warning is
// that you should be very careful about making sure a particular
// combination of parameters is supported before changing or
// adding anything here.
map.put(new Actions(Actions.NEXT_COLUMN, 1, 0,
false, false));
map.put(new Actions(Actions.NEXT_COLUMN_CHANGE_LEAD, 1, 0,
false, false));
map.put(new Actions(Actions.PREVIOUS_COLUMN, -1, 0,
false, false));
map.put(new Actions(Actions.PREVIOUS_COLUMN_CHANGE_LEAD, -1, 0,
false, false));
map.put(new Actions(Actions.NEXT_ROW, 0, 1,
false, false));
map.put(new Actions(Actions.NEXT_ROW_CHANGE_LEAD, 0, 1,
false, false));
map.put(new Actions(Actions.PREVIOUS_ROW, 0, -1,
false, false));
map.put(new Actions(Actions.PREVIOUS_ROW_CHANGE_LEAD, 0, -1,
false, false));
map.put(new Actions(Actions.NEXT_COLUMN_EXTEND_SELECTION,
1, 0, true, false));
map.put(new Actions(Actions.PREVIOUS_COLUMN_EXTEND_SELECTION,
-1, 0, true, false));
map.put(new Actions(Actions.NEXT_ROW_EXTEND_SELECTION,
0, 1, true, false));
map.put(new Actions(Actions.PREVIOUS_ROW_EXTEND_SELECTION,
0, -1, true, false));
map.put(new Actions(Actions.SCROLL_UP_CHANGE_SELECTION,
false, false, true, false));
map.put(new Actions(Actions.SCROLL_DOWN_CHANGE_SELECTION,
false, true, true, false));
map.put(new Actions(Actions.FIRST_COLUMN,
false, false, false, true));
map.put(new Actions(Actions.LAST_COLUMN,
false, true, false, true));
map.put(new Actions(Actions.SCROLL_UP_EXTEND_SELECTION,
true, false, true, false));
map.put(new Actions(Actions.SCROLL_DOWN_EXTEND_SELECTION,
true, true, true, false));
map.put(new Actions(Actions.FIRST_COLUMN_EXTEND_SELECTION,
true, false, false, true));
map.put(new Actions(Actions.LAST_COLUMN_EXTEND_SELECTION,
true, true, false, true));
map.put(new Actions(Actions.FIRST_ROW, false, false, true, true));
map.put(new Actions(Actions.LAST_ROW, false, true, true, true));
map.put(new Actions(Actions.FIRST_ROW_EXTEND_SELECTION,
true, false, true, true));
map.put(new Actions(Actions.LAST_ROW_EXTEND_SELECTION,
true, true, true, true));
map.put(new Actions(Actions.NEXT_COLUMN_CELL,
1, 0, false, true));
map.put(new Actions(Actions.PREVIOUS_COLUMN_CELL,
-1, 0, false, true));
map.put(new Actions(Actions.NEXT_ROW_CELL, 0, 1, false, true));
map.put(new Actions(Actions.PREVIOUS_ROW_CELL,
0, -1, false, true));
map.put(new Actions(Actions.SELECT_ALL));
map.put(new Actions(Actions.CLEAR_SELECTION));
map.put(new Actions(Actions.CANCEL_EDITING));
map.put(new Actions(Actions.START_EDITING));
map.put(TransferHandler.getCutAction().getValue(Action.NAME),
TransferHandler.getCutAction());
map.put(TransferHandler.getCopyAction().getValue(Action.NAME),
TransferHandler.getCopyAction());
map.put(TransferHandler.getPasteAction().getValue(Action.NAME),
TransferHandler.getPasteAction());
map.put(new Actions(Actions.SCROLL_LEFT_CHANGE_SELECTION,
false, false, false, false));
map.put(new Actions(Actions.SCROLL_RIGHT_CHANGE_SELECTION,
false, true, false, false));
map.put(new Actions(Actions.SCROLL_LEFT_EXTEND_SELECTION,
true, false, false, false));
map.put(new Actions(Actions.SCROLL_RIGHT_EXTEND_SELECTION,
true, true, false, false));
map.put(new Actions(Actions.ADD_TO_SELECTION));
map.put(new Actions(Actions.TOGGLE_AND_ANCHOR));
map.put(new Actions(Actions.EXTEND_TO));
map.put(new Actions(Actions.MOVE_SELECTION_TO));
map.put(new Actions(Actions.FOCUS_HEADER));
}
// Uninstallation
public void uninstallUI(JComponent c) {
uninstallDefaults();
uninstallListeners();
uninstallKeyboardActions();
table.remove(rendererPane);
rendererPane = null;
table = null;
}
protected void uninstallDefaults() {
if (table.getTransferHandler() instanceof UIResource) {
table.setTransferHandler(null);
}
}
protected void uninstallListeners() {
table.removeFocusListener(focusListener);
table.removeKeyListener(keyListener);
table.removeMouseListener(mouseInputListener);
table.removeMouseMotionListener(mouseInputListener);
table.removePropertyChangeListener(getHandler());
if (isFileList) {
table.getSelectionModel().removeListSelectionListener(getHandler());
}
focusListener = null;
keyListener = null;
mouseInputListener = null;
handler = null;
}
protected void uninstallKeyboardActions() {
SwingUtilities.replaceUIInputMap(table, JComponent.
WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, null);
SwingUtilities.replaceUIActionMap(table, null);
}
/**
* Returns the baseline.
*
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @see javax.swing.JComponent#getBaseline(int, int)
* @since 1.6
*/
public int getBaseline(JComponent c, int width, int height) {
super.getBaseline(c, width, height);
UIDefaults lafDefaults = UIManager.getLookAndFeelDefaults();
Component renderer = (Component)lafDefaults.get(
BASELINE_COMPONENT_KEY);
if (renderer == null) {
DefaultTableCellRenderer tcr = new DefaultTableCellRenderer();
renderer = tcr.getTableCellRendererComponent(
table, "a", false, false, -1, -1);
lafDefaults.put(BASELINE_COMPONENT_KEY, renderer);
}
renderer.setFont(table.getFont());
int rowMargin = table.getRowMargin();
return renderer.getBaseline(Integer.MAX_VALUE, table.getRowHeight() -
rowMargin) + rowMargin / 2;
}
/**
* Returns an enum indicating how the baseline of the component
* changes as the size changes.
*
* @throws NullPointerException {@inheritDoc}
* @see javax.swing.JComponent#getBaseline(int, int)
* @since 1.6
*/
public Component.BaselineResizeBehavior getBaselineResizeBehavior(
JComponent c) {
super.getBaselineResizeBehavior(c);
return Component.BaselineResizeBehavior.CONSTANT_ASCENT;
}
//
// Size Methods
//
private Dimension createTableSize(long width) {
int height = 0;
int rowCount = table.getRowCount();
if (rowCount > 0 && table.getColumnCount() > 0) {
Rectangle r = table.getCellRect(rowCount-1, 0, true);
height = r.y + r.height;
}
// Width is always positive. The call to abs() is a workaround for
// a bug in the 1.1.6 JIT on Windows.
long tmp = Math.abs(width);
if (tmp > Integer.MAX_VALUE) {
tmp = Integer.MAX_VALUE;
}
return new Dimension((int)tmp, height);
}
/**
* Return the minimum size of the table. The minimum height is the
* row height times the number of rows.
* The minimum width is the sum of the minimum widths of each column.
*/
public Dimension getMinimumSize(JComponent c) {
long width = 0;
Enumeration enumeration = table.getColumnModel().getColumns();
while (enumeration.hasMoreElements()) {
TableColumn aColumn = (TableColumn)enumeration.nextElement();
width = width + aColumn.getMinWidth();
}
return createTableSize(width);
}
/**
* Return the preferred size of the table. The preferred height is the
* row height times the number of rows.
* The preferred width is the sum of the preferred widths of each column.
*/
public Dimension getPreferredSize(JComponent c) {
long width = 0;
Enumeration enumeration = table.getColumnModel().getColumns();
while (enumeration.hasMoreElements()) {
TableColumn aColumn = (TableColumn)enumeration.nextElement();
width = width + aColumn.getPreferredWidth();
}
return createTableSize(width);
}
/**
* Return the maximum size of the table. The maximum height is the
* row heighttimes the number of rows.
* The maximum width is the sum of the maximum widths of each column.
*/
public Dimension getMaximumSize(JComponent c) {
long width = 0;
Enumeration enumeration = table.getColumnModel().getColumns();
while (enumeration.hasMoreElements()) {
TableColumn aColumn = (TableColumn)enumeration.nextElement();
width = width + aColumn.getMaxWidth();
}
return createTableSize(width);
}
//
// Paint methods and support
//
/** Paint a representation of the table instance
* that was set in installUI().
*/
public void paint(Graphics g, JComponent c) {
Rectangle clip = g.getClipBounds();
Rectangle bounds = table.getBounds();
// account for the fact that the graphics has already been translated
// into the table's bounds
bounds.x = bounds.y = 0;
if (table.getRowCount() <= 0 || table.getColumnCount() <= 0 ||
// this check prevents us from painting the entire table
// when the clip doesn't intersect our bounds at all
!bounds.intersects(clip)) {
paintDropLines(g);
return;
}
boolean ltr = table.getComponentOrientation().isLeftToRight();
Point upperLeft = clip.getLocation();
Point lowerRight = new Point(clip.x + clip.width - 1,
clip.y + clip.height - 1);
int rMin = table.rowAtPoint(upperLeft);
int rMax = table.rowAtPoint(lowerRight);
// This should never happen (as long as our bounds intersect the clip,
// which is why we bail above if that is the case).
if (rMin == -1) {
rMin = 0;
}
// If the table does not have enough rows to fill the view we'll get -1.
// (We could also get -1 if our bounds don't intersect the clip,
// which is why we bail above if that is the case).
// Replace this with the index of the last row.
if (rMax == -1) {
rMax = table.getRowCount()-1;
}
int cMin = table.columnAtPoint(ltr ? upperLeft : lowerRight);
int cMax = table.columnAtPoint(ltr ? lowerRight : upperLeft);
// This should never happen.
if (cMin == -1) {
cMin = 0;
}
// If the table does not have enough columns to fill the view we'll get -1.
// Replace this with the index of the last column.
if (cMax == -1) {
cMax = table.getColumnCount()-1;
}
// Paint the grid.
paintGrid(g, rMin, rMax, cMin, cMax);
// Paint the cells.
paintCells(g, rMin, rMax, cMin, cMax);
paintDropLines(g);
}
private void paintDropLines(Graphics g) {
JTable.DropLocation loc = table.getDropLocation();
if (loc == null) {
return;
}
Color color = UIManager.getColor("Table.dropLineColor");
Color shortColor = UIManager.getColor("Table.dropLineShortColor");
if (color == null && shortColor == null) {
return;
}
Rectangle rect;
rect = getHDropLineRect(loc);
if (rect != null) {
int x = rect.x;
int w = rect.width;
if (color != null) {
extendRect(rect, true);
g.setColor(color);
g.fillRect(rect.x, rect.y, rect.width, rect.height);
}
if (!loc.isInsertColumn() && shortColor != null) {
g.setColor(shortColor);
g.fillRect(x, rect.y, w, rect.height);
}
}
rect = getVDropLineRect(loc);
if (rect != null) {
int y = rect.y;
int h = rect.height;
if (color != null) {
extendRect(rect, false);
g.setColor(color);
g.fillRect(rect.x, rect.y, rect.width, rect.height);
}
if (!loc.isInsertRow() && shortColor != null) {
g.setColor(shortColor);
g.fillRect(rect.x, y, rect.width, h);
}
}
}
private Rectangle getHDropLineRect(JTable.DropLocation loc) {
if (!loc.isInsertRow()) {
return null;
}
int row = loc.getRow();
int col = loc.getColumn();
if (col >= table.getColumnCount()) {
col--;
}
Rectangle rect = table.getCellRect(row, col, true);
if (row >= table.getRowCount()) {
row--;
Rectangle prevRect = table.getCellRect(row, col, true);
rect.y = prevRect.y + prevRect.height;
}
if (rect.y == 0) {
rect.y = -1;
} else {
rect.y -= 2;
}
rect.height = 3;
return rect;
}
private Rectangle getVDropLineRect(JTable.DropLocation loc) {
if (!loc.isInsertColumn()) {
return null;
}
boolean ltr = table.getComponentOrientation().isLeftToRight();
int col = loc.getColumn();
Rectangle rect = table.getCellRect(loc.getRow(), col, true);
if (col >= table.getColumnCount()) {
col--;
rect = table.getCellRect(loc.getRow(), col, true);
if (ltr) {
rect.x = rect.x + rect.width;
}
} else if (!ltr) {
rect.x = rect.x + rect.width;
}
if (rect.x == 0) {
rect.x = -1;
} else {
rect.x -= 2;
}
rect.width = 3;
return rect;
}
private Rectangle extendRect(Rectangle rect, boolean horizontal) {
if (rect == null) {
return rect;
}
if (horizontal) {
rect.x = 0;
rect.width = table.getWidth();
} else {
rect.y = 0;
if (table.getRowCount() != 0) {
Rectangle lastRect = table.getCellRect(table.getRowCount() - 1, 0, true);
rect.height = lastRect.y + lastRect.height;
} else {
rect.height = table.getHeight();
}
}
return rect;
}
/*
* Paints the grid lines within aRect, using the grid
* color set with setGridColor. Paints vertical lines
* if getShowVerticalLines() returns true and paints
* horizontal lines if getShowHorizontalLines()
* returns true.
*/
private void paintGrid(Graphics g, int rMin, int rMax, int cMin, int cMax) {
g.setColor(table.getGridColor());
Rectangle minCell = table.getCellRect(rMin, cMin, true);
Rectangle maxCell = table.getCellRect(rMax, cMax, true);
Rectangle damagedArea = minCell.union( maxCell );
if (table.getShowHorizontalLines()) {
int tableWidth = damagedArea.x + damagedArea.width;
int y = damagedArea.y;
for (int row = rMin; row <= rMax; row++) {
y += table.getRowHeight(row);
g.drawLine(damagedArea.x, y - 1, tableWidth - 1, y - 1);
}
}
if (table.getShowVerticalLines()) {
TableColumnModel cm = table.getColumnModel();
int tableHeight = damagedArea.y + damagedArea.height;
int x;
if (table.getComponentOrientation().isLeftToRight()) {
x = damagedArea.x;
for (int column = cMin; column <= cMax; column++) {
int w = cm.getColumn(column).getWidth();
x += w;
g.drawLine(x - 1, 0, x - 1, tableHeight - 1);
}
} else {
x = damagedArea.x;
for (int column = cMax; column >= cMin; column--) {
int w = cm.getColumn(column).getWidth();
x += w;
g.drawLine(x - 1, 0, x - 1, tableHeight - 1);
}
}
}
}
private int viewIndexForColumn(TableColumn aColumn) {
TableColumnModel cm = table.getColumnModel();
for (int column = 0; column < cm.getColumnCount(); column++) {
if (cm.getColumn(column) == aColumn) {
return column;
}
}
return -1;
}
private void paintCells(Graphics g, int rMin, int rMax, int cMin, int cMax) {
JTableHeader header = table.getTableHeader();
TableColumn draggedColumn = (header == null) ? null : header.getDraggedColumn();
TableColumnModel cm = table.getColumnModel();
int columnMargin = cm.getColumnMargin();
Rectangle cellRect;
TableColumn aColumn;
int columnWidth;
if (table.getComponentOrientation().isLeftToRight()) {
for(int row = rMin; row <= rMax; row++) {
cellRect = table.getCellRect(row, cMin, false);
for(int column = cMin; column <= cMax; column++) {
aColumn = cm.getColumn(column);
columnWidth = aColumn.getWidth();
cellRect.width = columnWidth - columnMargin;
if (aColumn != draggedColumn) {
paintCell(g, cellRect, row, column);
}
cellRect.x += columnWidth;
}
}
} else {
for(int row = rMin; row <= rMax; row++) {
cellRect = table.getCellRect(row, cMin, false);
aColumn = cm.getColumn(cMin);
if (aColumn != draggedColumn) {
columnWidth = aColumn.getWidth();
cellRect.width = columnWidth - columnMargin;
paintCell(g, cellRect, row, cMin);
}
for(int column = cMin+1; column <= cMax; column++) {
aColumn = cm.getColumn(column);
columnWidth = aColumn.getWidth();
cellRect.width = columnWidth - columnMargin;
cellRect.x -= columnWidth;
if (aColumn != draggedColumn) {
paintCell(g, cellRect, row, column);
}
}
}
}
// Paint the dragged column if we are dragging.
if (draggedColumn != null) {
paintDraggedArea(g, rMin, rMax, draggedColumn, header.getDraggedDistance());
}
// Remove any renderers that may be left in the rendererPane.
rendererPane.removeAll();
}
private void paintDraggedArea(Graphics g, int rMin, int rMax, TableColumn draggedColumn, int distance) {
int draggedColumnIndex = viewIndexForColumn(draggedColumn);
Rectangle minCell = table.getCellRect(rMin, draggedColumnIndex, true);
Rectangle maxCell = table.getCellRect(rMax, draggedColumnIndex, true);
Rectangle vacatedColumnRect = minCell.union(maxCell);
// Paint a gray well in place of the moving column.
g.setColor(table.getParent().getBackground());
g.fillRect(vacatedColumnRect.x, vacatedColumnRect.y,
vacatedColumnRect.width, vacatedColumnRect.height);
// Move to the where the cell has been dragged.
vacatedColumnRect.x += distance;
// Fill the background.
g.setColor(table.getBackground());
g.fillRect(vacatedColumnRect.x, vacatedColumnRect.y,
vacatedColumnRect.width, vacatedColumnRect.height);
// Paint the vertical grid lines if necessary.
if (table.getShowVerticalLines()) {
g.setColor(table.getGridColor());
int x1 = vacatedColumnRect.x;
int y1 = vacatedColumnRect.y;
int x2 = x1 + vacatedColumnRect.width - 1;
int y2 = y1 + vacatedColumnRect.height - 1;
// Left
g.drawLine(x1-1, y1, x1-1, y2);
// Right
g.drawLine(x2, y1, x2, y2);
}
for(int row = rMin; row <= rMax; row++) {
// Render the cell value
Rectangle r = table.getCellRect(row, draggedColumnIndex, false);
r.x += distance;
paintCell(g, r, row, draggedColumnIndex);
// Paint the (lower) horizontal grid line if necessary.
if (table.getShowHorizontalLines()) {
g.setColor(table.getGridColor());
Rectangle rcr = table.getCellRect(row, draggedColumnIndex, true);
rcr.x += distance;
int x1 = rcr.x;
int y1 = rcr.y;
int x2 = x1 + rcr.width - 1;
int y2 = y1 + rcr.height - 1;
g.drawLine(x1, y2, x2, y2);
}
}
}
private void paintCell(Graphics g, Rectangle cellRect, int row, int column) {
if (table.isEditing() && table.getEditingRow()==row &&
table.getEditingColumn()==column) {
Component component = table.getEditorComponent();
component.setBounds(cellRect);
component.validate();
}
else {
TableCellRenderer renderer = table.getCellRenderer(row, column);
Component component = table.prepareRenderer(renderer, row, column);
rendererPane.paintComponent(g, component, table, cellRect.x, cellRect.y,
cellRect.width, cellRect.height, true);
}
}
private static int getAdjustedLead(JTable table,
boolean row,
ListSelectionModel model) {
int index = model.getLeadSelectionIndex();
int compare = row ? table.getRowCount() : table.getColumnCount();
return index < compare ? index : -1;
}
private static int getAdjustedLead(JTable table, boolean row) {
return row ? getAdjustedLead(table, row, table.getSelectionModel())
: getAdjustedLead(table, row, table.getColumnModel().getSelectionModel());
}
private static final TransferHandler defaultTransferHandler = new TableTransferHandler();
static class TableTransferHandler extends TransferHandler implements UIResource {
/**
* Create a Transferable to use as the source for a data transfer.
*
* @param c The component holding the data to be transfered. This
* argument is provided to enable sharing of TransferHandlers by
* multiple components.
* @return The representation of the data to be transfered.
*
*/
protected Transferable createTransferable(JComponent c) {
if (c instanceof JTable) {
JTable table = (JTable) c;
int[] rows;
int[] cols;
if (!table.getRowSelectionAllowed() && !table.getColumnSelectionAllowed()) {
return null;
}
if (!table.getRowSelectionAllowed()) {
int rowCount = table.getRowCount();
rows = new int[rowCount];
for (int counter = 0; counter < rowCount; counter++) {
rows[counter] = counter;
}
} else {
rows = table.getSelectedRows();
}
if (!table.getColumnSelectionAllowed()) {
int colCount = table.getColumnCount();
cols = new int[colCount];
for (int counter = 0; counter < colCount; counter++) {
cols[counter] = counter;
}
} else {
cols = table.getSelectedColumns();
}
if (rows == null || cols == null || rows.length == 0 || cols.length == 0) {
return null;
}
StringBuffer plainBuf = new StringBuffer();
StringBuffer htmlBuf = new StringBuffer();
htmlBuf.append("\n
| " + val + " | \n"); } // we want a newline at the end of each line and not a tab plainBuf.deleteCharAt(plainBuf.length() - 1).append("\n"); htmlBuf.append("