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Diffstat (limited to 'libjava/classpath/javax/swing/plaf/basic/BasicTableUI.java')
| -rw-r--r-- | libjava/classpath/javax/swing/plaf/basic/BasicTableUI.java | 1410 |
1 files changed, 1410 insertions, 0 deletions
diff --git a/libjava/classpath/javax/swing/plaf/basic/BasicTableUI.java b/libjava/classpath/javax/swing/plaf/basic/BasicTableUI.java new file mode 100644 index 000000000..f5a4bcb67 --- /dev/null +++ b/libjava/classpath/javax/swing/plaf/basic/BasicTableUI.java @@ -0,0 +1,1410 @@ +/* BasicTableUI.java -- + Copyright (C) 2004 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath 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, or (at your option) +any later version. + +GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package javax.swing.plaf.basic; + +import java.awt.Color; +import java.awt.Component; +import java.awt.ComponentOrientation; +import java.awt.Dimension; +import java.awt.Graphics; +import java.awt.Point; +import java.awt.Rectangle; +import java.awt.event.ActionEvent; +import java.awt.event.FocusEvent; +import java.awt.event.FocusListener; +import java.awt.event.KeyEvent; +import java.awt.event.KeyListener; +import java.awt.event.MouseEvent; +import java.beans.PropertyChangeEvent; +import java.beans.PropertyChangeListener; + +import javax.swing.AbstractAction; +import javax.swing.Action; +import javax.swing.ActionMap; +import javax.swing.CellRendererPane; +import javax.swing.DefaultCellEditor; +import javax.swing.DefaultListSelectionModel; +import javax.swing.InputMap; +import javax.swing.JComponent; +import javax.swing.JTable; +import javax.swing.ListSelectionModel; +import javax.swing.LookAndFeel; +import javax.swing.SwingUtilities; +import javax.swing.TransferHandler; +import javax.swing.UIManager; +import javax.swing.border.Border; +import javax.swing.event.ChangeEvent; +import javax.swing.event.MouseInputListener; +import javax.swing.plaf.ActionMapUIResource; +import javax.swing.plaf.ComponentUI; +import javax.swing.plaf.TableUI; +import javax.swing.table.TableCellEditor; +import javax.swing.table.TableCellRenderer; +import javax.swing.table.TableColumn; +import javax.swing.table.TableColumnModel; +import javax.swing.table.TableModel; + +public class BasicTableUI extends TableUI +{ + public static ComponentUI createUI(JComponent comp) + { + return new BasicTableUI(); + } + + protected FocusListener focusListener; + protected KeyListener keyListener; + protected MouseInputListener mouseInputListener; + protected CellRendererPane rendererPane; + protected JTable table; + + /** The normal cell border. */ + Border cellBorder; + + /** The action bound to KeyStrokes. */ + TableAction action; + + /** + * Listens for changes to the tables properties. + */ + private PropertyChangeListener propertyChangeListener; + + /** + * Handles key events for the JTable. Key events should be handled through + * the InputMap/ActionMap mechanism since JDK1.3. This class is only there + * for backwards compatibility. + * + * @author Roman Kennke (kennke@aicas.com) + */ + public class KeyHandler implements KeyListener + { + + /** + * Receives notification that a key has been pressed and released. + * Activates the editing session for the focused cell by pressing the + * character keys. + * + * @param event the key event + */ + public void keyTyped(KeyEvent event) + { + // Key events should be handled through the InputMap/ActionMap mechanism + // since JDK1.3. This class is only there for backwards compatibility. + + // Editor activation is a specific kind of response to ''any'' + // character key. Hence it is handled here. + if (!table.isEditing() && table.isEnabled()) + { + int r = table.getSelectedRow(); + int c = table.getSelectedColumn(); + if (table.isCellEditable(r, c)) + table.editCellAt(r, c); + } + } + + /** + * Receives notification that a key has been pressed. + * + * @param event the key event + */ + public void keyPressed(KeyEvent event) + { + // Key events should be handled through the InputMap/ActionMap mechanism + // since JDK1.3. This class is only there for backwards compatibility. + } + + /** + * Receives notification that a key has been released. + * + * @param event the key event + */ + public void keyReleased(KeyEvent event) + { + // Key events should be handled through the InputMap/ActionMap mechanism + // since JDK1.3. This class is only there for backwards compatibility. + } + } + + public class FocusHandler implements FocusListener + { + public void focusGained(FocusEvent e) + { + // The only thing that is affected by a focus change seems to be + // how the lead cell is painted. So we repaint this cell. + repaintLeadCell(); + } + + public void focusLost(FocusEvent e) + { + // The only thing that is affected by a focus change seems to be + // how the lead cell is painted. So we repaint this cell. + repaintLeadCell(); + } + + /** + * Repaints the lead cell in response to a focus change, to refresh + * the display of the focus indicator. + */ + private void repaintLeadCell() + { + int rowCount = table.getRowCount(); + int columnCount = table.getColumnCount(); + int rowLead = table.getSelectionModel().getLeadSelectionIndex(); + int columnLead = table.getColumnModel().getSelectionModel(). + getLeadSelectionIndex(); + if (rowLead >= 0 && rowLead < rowCount && columnLead >= 0 + && columnLead < columnCount) + { + Rectangle dirtyRect = table.getCellRect(rowLead, columnLead, false); + table.repaint(dirtyRect); + } + } + } + + public class MouseInputHandler implements MouseInputListener + { + Point begin, curr; + + private void updateSelection(boolean controlPressed) + { + // Update the rows + int lo_row = table.rowAtPoint(begin); + int hi_row = table.rowAtPoint(curr); + ListSelectionModel rowModel = table.getSelectionModel(); + if (lo_row != -1 && hi_row != -1) + { + if (controlPressed && rowModel.getSelectionMode() + != ListSelectionModel.SINGLE_SELECTION) + rowModel.addSelectionInterval(lo_row, hi_row); + else + rowModel.setSelectionInterval(lo_row, hi_row); + } + + // Update the columns + int lo_col = table.columnAtPoint(begin); + int hi_col = table.columnAtPoint(curr); + ListSelectionModel colModel = table.getColumnModel(). + getSelectionModel(); + if (lo_col != -1 && hi_col != -1) + { + if (controlPressed && colModel.getSelectionMode() != + ListSelectionModel.SINGLE_SELECTION) + colModel.addSelectionInterval(lo_col, hi_col); + else + colModel.setSelectionInterval(lo_col, hi_col); + } + } + + /** + * For the double click, start the cell editor. + */ + public void mouseClicked(MouseEvent e) + { + Point p = e.getPoint(); + int row = table.rowAtPoint(p); + int col = table.columnAtPoint(p); + if (table.isCellEditable(row, col)) + { + // If the cell editor is the default editor, we request the + // number of the required clicks from it. Otherwise, + // require two clicks (double click). + TableCellEditor editor = table.getCellEditor(row, col); + if (editor instanceof DefaultCellEditor) + { + DefaultCellEditor ce = (DefaultCellEditor) editor; + if (e.getClickCount() < ce.getClickCountToStart()) + return; + } + table.editCellAt(row, col); + } + } + + public void mouseDragged(MouseEvent e) + { + if (table.isEnabled()) + { + curr = new Point(e.getX(), e.getY()); + updateSelection(e.isControlDown()); + } + } + + public void mouseEntered(MouseEvent e) + { + // Nothing to do here. + } + + public void mouseExited(MouseEvent e) + { + // Nothing to do here. + } + + public void mouseMoved(MouseEvent e) + { + // Nothing to do here. + } + + public void mousePressed(MouseEvent e) + { + if (table.isEnabled()) + { + ListSelectionModel rowModel = table.getSelectionModel(); + ListSelectionModel colModel = table.getColumnModel().getSelectionModel(); + int rowLead = rowModel.getLeadSelectionIndex(); + int colLead = colModel.getLeadSelectionIndex(); + + begin = new Point(e.getX(), e.getY()); + curr = new Point(e.getX(), e.getY()); + //if control is pressed and the cell is already selected, deselect it + if (e.isControlDown() && table.isCellSelected( + table.rowAtPoint(begin), table.columnAtPoint(begin))) + { + table.getSelectionModel(). + removeSelectionInterval(table.rowAtPoint(begin), + table.rowAtPoint(begin)); + table.getColumnModel().getSelectionModel(). + removeSelectionInterval(table.columnAtPoint(begin), + table.columnAtPoint(begin)); + } + else + updateSelection(e.isControlDown()); + + // If we were editing, but the moved to another cell, stop editing + if (rowLead != rowModel.getLeadSelectionIndex() || + colLead != colModel.getLeadSelectionIndex()) + if (table.isEditing()) + table.editingStopped(new ChangeEvent(e)); + + // Must request focus explicitly. + table.requestFocusInWindow(); + } + } + + public void mouseReleased(MouseEvent e) + { + if (table.isEnabled()) + { + begin = null; + curr = null; + } + } + } + + /** + * Listens for changes to the model property of the JTable and adjusts some + * settings. + * + * @author Roman Kennke (kennke@aicas.com) + */ + private class PropertyChangeHandler implements PropertyChangeListener + { + /** + * Receives notification if one of the JTable's properties changes. + * + * @param ev the property change event + */ + public void propertyChange(PropertyChangeEvent ev) + { + String propName = ev.getPropertyName(); + if (propName.equals("model")) + { + ListSelectionModel rowSel = table.getSelectionModel(); + rowSel.clearSelection(); + ListSelectionModel colSel = table.getColumnModel().getSelectionModel(); + colSel.clearSelection(); + TableModel model = table.getModel(); + + // Adjust lead and anchor selection indices of the row and column + // selection models. + if (model.getRowCount() > 0) + { + rowSel.setAnchorSelectionIndex(0); + rowSel.setLeadSelectionIndex(0); + } + else + { + rowSel.setAnchorSelectionIndex(-1); + rowSel.setLeadSelectionIndex(-1); + } + if (model.getColumnCount() > 0) + { + colSel.setAnchorSelectionIndex(0); + colSel.setLeadSelectionIndex(0); + } + else + { + colSel.setAnchorSelectionIndex(-1); + colSel.setLeadSelectionIndex(-1); + } + } + } + } + + protected FocusListener createFocusListener() + { + return new FocusHandler(); + } + + protected MouseInputListener createMouseInputListener() + { + return new MouseInputHandler(); + } + + + /** + * Creates and returns a key listener for the JTable. + * + * @return a key listener for the JTable + */ + protected KeyListener createKeyListener() + { + return new KeyHandler(); + } + + /** + * Return the maximum size of the table. The maximum height is the row + * height times the number of rows. The maximum width is the sum of + * the maximum widths of each column. + * + * @param comp the component whose maximum size is being queried, + * this is ignored. + * @return a Dimension object representing the maximum size of the table, + * or null if the table has no elements. + */ + public Dimension getMaximumSize(JComponent comp) + { + int maxTotalColumnWidth = 0; + for (int i = 0; i < table.getColumnCount(); i++) + maxTotalColumnWidth += table.getColumnModel().getColumn(i).getMaxWidth(); + + return new Dimension(maxTotalColumnWidth, getHeight()); + } + + /** + * 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. + * + * @param comp the component whose minimum size is being queried, + * this is ignored. + * @return a Dimension object representing the minimum size of the table, + * or null if the table has no elements. + */ + public Dimension getMinimumSize(JComponent comp) + { + int minTotalColumnWidth = 0; + for (int i = 0; i < table.getColumnCount(); i++) + minTotalColumnWidth += table.getColumnModel().getColumn(i).getMinWidth(); + + return new Dimension(minTotalColumnWidth, getHeight()); + } + + /** + * Returns the preferred size for the table of that UI. + * + * @param comp ignored, the <code>table</code> field is used instead + * + * @return the preferred size for the table of that UI + */ + public Dimension getPreferredSize(JComponent comp) + { + int prefTotalColumnWidth = 0; + TableColumnModel tcm = table.getColumnModel(); + + for (int i = 0; i < tcm.getColumnCount(); i++) + { + TableColumn col = tcm.getColumn(i); + prefTotalColumnWidth += col.getPreferredWidth(); + } + + return new Dimension(prefTotalColumnWidth, getHeight()); + } + + /** + * Returns the table height. This helper method is used by + * {@link #getMinimumSize(JComponent)}, {@link #getPreferredSize(JComponent)} + * and {@link #getMaximumSize(JComponent)} to determine the table height. + * + * @return the table height + */ + private int getHeight() + { + 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; + } + return height; + } + + protected void installDefaults() + { + LookAndFeel.installColorsAndFont(table, "Table.background", + "Table.foreground", "Table.font"); + table.setGridColor(UIManager.getColor("Table.gridColor")); + table.setSelectionForeground(UIManager.getColor("Table.selectionForeground")); + table.setSelectionBackground(UIManager.getColor("Table.selectionBackground")); + table.setOpaque(true); + } + + /** + * Installs keyboard actions on the table. + */ + protected void installKeyboardActions() + { + // Install the input map. + InputMap inputMap = + (InputMap) SharedUIDefaults.get("Table.ancestorInputMap"); + SwingUtilities.replaceUIInputMap(table, + JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, + inputMap); + + // FIXME: The JDK uses a LazyActionMap for parentActionMap + SwingUtilities.replaceUIActionMap(table, getActionMap()); + + } + + /** + * Fetches the action map from the UI defaults, or create a new one + * if the action map hasn't been initialized. + * + * @return the action map + */ + private ActionMap getActionMap() + { + ActionMap am = (ActionMap) UIManager.get("Table.actionMap"); + if (am == null) + { + am = createDefaultActions(); + UIManager.getLookAndFeelDefaults().put("Table.actionMap", am); + } + return am; + } + + private ActionMap createDefaultActions() + { + ActionMapUIResource am = new ActionMapUIResource(); + Action action = new TableAction(); + + am.put("cut", TransferHandler.getCutAction()); + am.put("copy", TransferHandler.getCopyAction()); + am.put("paste", TransferHandler.getPasteAction()); + + am.put("cancel", action); + am.put("selectAll", action); + am.put("clearSelection", action); + am.put("startEditing", action); + + am.put("selectNextRow", action); + am.put("selectNextRowCell", action); + am.put("selectNextRowExtendSelection", action); + am.put("selectNextRowChangeLead", action); + + am.put("selectPreviousRow", action); + am.put("selectPreviousRowCell", action); + am.put("selectPreviousRowExtendSelection", action); + am.put("selectPreviousRowChangeLead", action); + + am.put("selectNextColumn", action); + am.put("selectNextColumnCell", action); + am.put("selectNextColumnExtendSelection", action); + am.put("selectNextColumnChangeLead", action); + + am.put("selectPreviousColumn", action); + am.put("selectPreviousColumnCell", action); + am.put("selectPreviousColumnExtendSelection", action); + am.put("selectPreviousColumnChangeLead", action); + + am.put("scrollLeftChangeSelection", action); + am.put("scrollLeftExtendSelection", action); + am.put("scrollRightChangeSelection", action); + am.put("scrollRightExtendSelection", action); + + am.put("scrollUpChangeSelection", action); + am.put("scrollUpExtendSelection", action); + am.put("scrollDownChangeSelection", action); + am.put("scrolldownExtendSelection", action); + + am.put("selectFirstColumn", action); + am.put("selectFirstColumnExtendSelection", action); + am.put("selectLastColumn", action); + am.put("selectLastColumnExtendSelection", action); + + am.put("selectFirstRow", action); + am.put("selectFirstRowExtendSelection", action); + am.put("selectLastRow", action); + am.put("selectLastRowExtendSelection", action); + + am.put("addToSelection", action); + am.put("toggleAndAnchor", action); + am.put("extendTo", action); + am.put("moveSelectionTo", action); + + return am; + } + + /** + * This class implements the actions that we want to happen + * when specific keys are pressed for the JTable. The actionPerformed + * method is called when a key that has been registered for the JTable + * is received. + */ + private static class TableAction + extends AbstractAction + { + /** + * What to do when this action is called. + * + * @param e the ActionEvent that caused this action. + */ + public void actionPerformed(ActionEvent e) + { + JTable table = (JTable) e.getSource(); + + DefaultListSelectionModel rowModel + = (DefaultListSelectionModel) table.getSelectionModel(); + DefaultListSelectionModel colModel + = (DefaultListSelectionModel) table.getColumnModel().getSelectionModel(); + + int rowLead = rowModel.getLeadSelectionIndex(); + int rowMax = table.getModel().getRowCount() - 1; + + int colLead = colModel.getLeadSelectionIndex(); + int colMax = table.getModel().getColumnCount() - 1; + + // The command with which the action has been called is stored + // in this undocumented action value. This allows us to have only + // one Action instance to serve all keyboard input for JTable. + String command = (String) getValue("__command__"); + if (command.equals("selectPreviousRowExtendSelection")) + { + rowModel.setLeadSelectionIndex(Math.max(rowLead - 1, 0)); + } + else if (command.equals("selectLastColumn")) + { + colModel.setSelectionInterval(colMax, colMax); + } + else if (command.equals("startEditing")) + { + if (table.isCellEditable(rowLead, colLead)) + table.editCellAt(rowLead, colLead); + } + else if (command.equals("selectFirstRowExtendSelection")) + { + rowModel.setLeadSelectionIndex(0); + } + else if (command.equals("selectFirstColumn")) + { + colModel.setSelectionInterval(0, 0); + } + else if (command.equals("selectFirstColumnExtendSelection")) + { + colModel.setLeadSelectionIndex(0); + } + else if (command.equals("selectLastRow")) + { + rowModel.setSelectionInterval(rowMax, rowMax); + } + else if (command.equals("selectNextRowExtendSelection")) + { + rowModel.setLeadSelectionIndex(Math.min(rowLead + 1, rowMax)); + } + else if (command.equals("selectFirstRow")) + { + rowModel.setSelectionInterval(0, 0); + } + else if (command.equals("selectNextColumnExtendSelection")) + { + colModel.setLeadSelectionIndex(Math.min(colLead + 1, colMax)); + } + else if (command.equals("selectLastColumnExtendSelection")) + { + colModel.setLeadSelectionIndex(colMax); + } + else if (command.equals("selectPreviousColumnExtendSelection")) + { + colModel.setLeadSelectionIndex(Math.max(colLead - 1, 0)); + } + else if (command.equals("selectNextRow")) + { + rowModel.setSelectionInterval(Math.min(rowLead + 1, rowMax), + Math.min(rowLead + 1, rowMax)); + } + else if (command.equals("scrollUpExtendSelection")) + { + int target; + if (rowLead == getFirstVisibleRowIndex(table)) + target = Math.max(0, rowLead - (getLastVisibleRowIndex(table) + - getFirstVisibleRowIndex(table) + 1)); + else + target = getFirstVisibleRowIndex(table); + + rowModel.setLeadSelectionIndex(target); + colModel.setLeadSelectionIndex(colLead); + } + else if (command.equals("selectPreviousRow")) + { + rowModel.setSelectionInterval(Math.max(rowLead - 1, 0), + Math.max(rowLead - 1, 0)); + } + else if (command.equals("scrollRightChangeSelection")) + { + int target; + if (colLead == getLastVisibleColumnIndex(table)) + target = Math.min(colMax, colLead + + (getLastVisibleColumnIndex(table) + - getFirstVisibleColumnIndex(table) + 1)); + else + target = getLastVisibleColumnIndex(table); + + colModel.setSelectionInterval(target, target); + rowModel.setSelectionInterval(rowLead, rowLead); + } + else if (command.equals("selectPreviousColumn")) + { + colModel.setSelectionInterval(Math.max(colLead - 1, 0), + Math.max(colLead - 1, 0)); + } + else if (command.equals("scrollLeftChangeSelection")) + { + int target; + if (colLead == getFirstVisibleColumnIndex(table)) + target = Math.max(0, colLead - (getLastVisibleColumnIndex(table) + - getFirstVisibleColumnIndex(table) + 1)); + else + target = getFirstVisibleColumnIndex(table); + + colModel.setSelectionInterval(target, target); + rowModel.setSelectionInterval(rowLead, rowLead); + } + else if (command.equals("clearSelection")) + { + table.clearSelection(); + } + else if (command.equals("cancel")) + { + // FIXME: implement other parts of "cancel" like undo-ing last + // selection. Right now it just calls editingCancelled if + // we're currently editing. + if (table.isEditing()) + table.editingCanceled(new ChangeEvent("cancel")); + } + else if (command.equals("selectNextRowCell") + || command.equals("selectPreviousRowCell") + || command.equals("selectNextColumnCell") + || command.equals("selectPreviousColumnCell")) + { + // If nothing is selected, select the first cell in the table + if (table.getSelectedRowCount() == 0 && + table.getSelectedColumnCount() == 0) + { + rowModel.setSelectionInterval(0, 0); + colModel.setSelectionInterval(0, 0); + return; + } + + // If the lead selection index isn't selected (ie a remove operation + // happened, then set the lead to the first selected cell in the + // table + if (!table.isCellSelected(rowLead, colLead)) + { + rowModel.addSelectionInterval(rowModel.getMinSelectionIndex(), + rowModel.getMinSelectionIndex()); + colModel.addSelectionInterval(colModel.getMinSelectionIndex(), + colModel.getMinSelectionIndex()); + return; + } + + // multRowsSelected and multColsSelected tell us if multiple rows or + // columns are selected, respectively + boolean multRowsSelected, multColsSelected; + multRowsSelected = table.getSelectedRowCount() > 1 && + table.getRowSelectionAllowed(); + + multColsSelected = table.getSelectedColumnCount() > 1 && + table.getColumnSelectionAllowed(); + + // If there is just one selection, select the next cell, and wrap + // when you get to the edges of the table. + if (!multColsSelected && !multRowsSelected) + { + if (command.indexOf("Column") != -1) + advanceSingleSelection(colModel, colMax, rowModel, rowMax, + command.equals("selectPreviousColumnCell")); + else + advanceSingleSelection(rowModel, rowMax, colModel, colMax, + command.equals("selectPreviousRowCell")); + return; + } + + + // rowMinSelected and rowMaxSelected are the minimum and maximum + // values respectively of selected cells in the row selection model + // Similarly for colMinSelected and colMaxSelected. + int rowMaxSelected = table.getRowSelectionAllowed() ? + rowModel.getMaxSelectionIndex() : table.getModel().getRowCount() - 1; + int rowMinSelected = table.getRowSelectionAllowed() ? + rowModel.getMinSelectionIndex() : 0; + int colMaxSelected = table.getColumnSelectionAllowed() ? + colModel.getMaxSelectionIndex() : + table.getModel().getColumnCount() - 1; + int colMinSelected = table.getColumnSelectionAllowed() ? + colModel.getMinSelectionIndex() : 0; + + // If there are multiple rows and columns selected, select the next + // cell and wrap at the edges of the selection. + if (command.indexOf("Column") != -1) + advanceMultipleSelection(table, colModel, colMinSelected, + colMaxSelected, rowModel, rowMinSelected, + rowMaxSelected, + command.equals("selectPreviousColumnCell"), + true); + + else + advanceMultipleSelection(table, rowModel, rowMinSelected, + rowMaxSelected, colModel, colMinSelected, + colMaxSelected, + command.equals("selectPreviousRowCell"), + false); + } + else if (command.equals("selectNextColumn")) + { + colModel.setSelectionInterval(Math.min(colLead + 1, colMax), + Math.min(colLead + 1, colMax)); + } + else if (command.equals("scrollLeftExtendSelection")) + { + int target; + if (colLead == getFirstVisibleColumnIndex(table)) + target = Math.max(0, colLead - (getLastVisibleColumnIndex(table) + - getFirstVisibleColumnIndex(table) + 1)); + else + target = getFirstVisibleColumnIndex(table); + + colModel.setLeadSelectionIndex(target); + rowModel.setLeadSelectionIndex(rowLead); + } + else if (command.equals("scrollDownChangeSelection")) + { + int target; + if (rowLead == getLastVisibleRowIndex(table)) + target = Math.min(rowMax, rowLead + (getLastVisibleRowIndex(table) + - getFirstVisibleRowIndex(table) + 1)); + else + target = getLastVisibleRowIndex(table); + + rowModel.setSelectionInterval(target, target); + colModel.setSelectionInterval(colLead, colLead); + } + else if (command.equals("scrollRightExtendSelection")) + { + int target; + if (colLead == getLastVisibleColumnIndex(table)) + target = Math.min(colMax, colLead + (getLastVisibleColumnIndex(table) + - getFirstVisibleColumnIndex(table) + 1)); + else + target = getLastVisibleColumnIndex(table); + + colModel.setLeadSelectionIndex(target); + rowModel.setLeadSelectionIndex(rowLead); + } + else if (command.equals("selectAll")) + { + table.selectAll(); + } + else if (command.equals("selectLastRowExtendSelection")) + { + rowModel.setLeadSelectionIndex(rowMax); + colModel.setLeadSelectionIndex(colLead); + } + else if (command.equals("scrollDownExtendSelection")) + { + int target; + if (rowLead == getLastVisibleRowIndex(table)) + target = Math.min(rowMax, rowLead + (getLastVisibleRowIndex(table) + - getFirstVisibleRowIndex(table) + 1)); + else + target = getLastVisibleRowIndex(table); + + rowModel.setLeadSelectionIndex(target); + colModel.setLeadSelectionIndex(colLead); + } + else if (command.equals("scrollUpChangeSelection")) + { + int target; + if (rowLead == getFirstVisibleRowIndex(table)) + target = Math.max(0, rowLead - (getLastVisibleRowIndex(table) + - getFirstVisibleRowIndex(table) + 1)); + else + target = getFirstVisibleRowIndex(table); + + rowModel.setSelectionInterval(target, target); + colModel.setSelectionInterval(colLead, colLead); + } + else if (command.equals("selectNextRowChangeLead")) + { + if (rowModel.getSelectionMode() + != ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) + { + // just "selectNextRow" + rowModel.setSelectionInterval(Math.min(rowLead + 1, rowMax), + Math.min(rowLead + 1, rowMax)); + colModel.setSelectionInterval(colLead, colLead); + } + else + rowModel.moveLeadSelectionIndex(Math.min(rowLead + 1, rowMax)); + } + else if (command.equals("selectPreviousRowChangeLead")) + { + if (rowModel.getSelectionMode() + != ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) + { + // just selectPreviousRow + rowModel.setSelectionInterval(Math.max(rowLead - 1, 0), + Math.min(rowLead - 1, 0)); + colModel.setSelectionInterval(colLead, colLead); + } + else + rowModel.moveLeadSelectionIndex(Math.max(rowLead - 1, 0)); + } + else if (command.equals("selectNextColumnChangeLead")) + { + if (colModel.getSelectionMode() + != ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) + { + // just selectNextColumn + rowModel.setSelectionInterval(rowLead, rowLead); + colModel.setSelectionInterval(Math.min(colLead + 1, colMax), + Math.min(colLead + 1, colMax)); + } + else + colModel.moveLeadSelectionIndex(Math.min(colLead + 1, colMax)); + } + else if (command.equals("selectPreviousColumnChangeLead")) + { + if (colModel.getSelectionMode() + != ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) + { + // just selectPreviousColumn + rowModel.setSelectionInterval(rowLead, rowLead); + colModel.setSelectionInterval(Math.max(colLead - 1, 0), + Math.max(colLead - 1, 0)); + + } + else + colModel.moveLeadSelectionIndex(Math.max(colLead - 1, 0)); + } + else if (command.equals("addToSelection")) + { + if (!table.isEditing()) + { + int oldRowAnchor = rowModel.getAnchorSelectionIndex(); + int oldColAnchor = colModel.getAnchorSelectionIndex(); + rowModel.addSelectionInterval(rowLead, rowLead); + colModel.addSelectionInterval(colLead, colLead); + rowModel.setAnchorSelectionIndex(oldRowAnchor); + colModel.setAnchorSelectionIndex(oldColAnchor); + } + } + else if (command.equals("extendTo")) + { + rowModel.setSelectionInterval(rowModel.getAnchorSelectionIndex(), + rowLead); + colModel.setSelectionInterval(colModel.getAnchorSelectionIndex(), + colLead); + } + else if (command.equals("toggleAndAnchor")) + { + if (rowModel.isSelectedIndex(rowLead)) + rowModel.removeSelectionInterval(rowLead, rowLead); + else + rowModel.addSelectionInterval(rowLead, rowLead); + + if (colModel.isSelectedIndex(colLead)) + colModel.removeSelectionInterval(colLead, colLead); + else + colModel.addSelectionInterval(colLead, colLead); + + rowModel.setAnchorSelectionIndex(rowLead); + colModel.setAnchorSelectionIndex(colLead); + } + else if (command.equals("stopEditing")) + { + table.editingStopped(new ChangeEvent(command)); + } + else + { + // If we're here that means we bound this TableAction class + // to a keyboard input but we either want to ignore that input + // or we just haven't implemented its action yet. + + // Uncomment the following line to print the names of unused bindings + // when their keys are pressed + + // System.out.println ("not implemented: "+e.getActionCommand()); + } + + // Any commands whose keyStrokes should be used by the Editor should not + // cause editing to be stopped: ie, the SPACE sends "addToSelection" but + // if the table is in editing mode, the space should not cause us to stop + // editing because it should be used by the Editor. + if (table.isEditing() && command != "startEditing" + && command != "addToSelection") + table.editingStopped(new ChangeEvent("update")); + + table.scrollRectToVisible(table.getCellRect( + rowModel.getLeadSelectionIndex(), colModel.getLeadSelectionIndex(), + false)); + } + + /** + * Returns the column index of the first visible column. + * @return the column index of the first visible column. + */ + int getFirstVisibleColumnIndex(JTable table) + { + ComponentOrientation or = table.getComponentOrientation(); + Rectangle r = table.getVisibleRect(); + if (!or.isLeftToRight()) + r.translate((int) r.getWidth() - 1, 0); + return table.columnAtPoint(r.getLocation()); + } + + /** + * Returns the column index of the last visible column. + * + */ + int getLastVisibleColumnIndex(JTable table) + { + ComponentOrientation or = table.getComponentOrientation(); + Rectangle r = table.getVisibleRect(); + if (or.isLeftToRight()) + r.translate((int) r.getWidth() - 1, 0); + return table.columnAtPoint(r.getLocation()); + } + + /** + * Returns the row index of the first visible row. + * + */ + int getFirstVisibleRowIndex(JTable table) + { + ComponentOrientation or = table.getComponentOrientation(); + Rectangle r = table.getVisibleRect(); + if (!or.isLeftToRight()) + r.translate((int) r.getWidth() - 1, 0); + return table.rowAtPoint(r.getLocation()); + } + + /** + * Returns the row index of the last visible row. + * + */ + int getLastVisibleRowIndex(JTable table) + { + ComponentOrientation or = table.getComponentOrientation(); + Rectangle r = table.getVisibleRect(); + r.translate(0, (int) r.getHeight() - 1); + if (or.isLeftToRight()) + r.translate((int) r.getWidth() - 1, 0); + // The next if makes sure that we don't return -1 simply because + // there is white space at the bottom of the table (ie, the display + // area is larger than the table) + if (table.rowAtPoint(r.getLocation()) == -1) + { + if (getFirstVisibleRowIndex(table) == -1) + return -1; + else + return table.getModel().getRowCount() - 1; + } + return table.rowAtPoint(r.getLocation()); + } + + /** + * A helper method for the key bindings. Used because the actions + * for TAB, SHIFT-TAB, ENTER, and SHIFT-ENTER are very similar. + * + * Selects the next (previous if SHIFT pressed) column for TAB, or row for + * ENTER from within the currently selected cells. + * + * @param firstModel the ListSelectionModel for columns (TAB) or + * rows (ENTER) + * @param firstMin the first selected index in firstModel + * @param firstMax the last selected index in firstModel + * @param secondModel the ListSelectionModel for rows (TAB) or + * columns (ENTER) + * @param secondMin the first selected index in secondModel + * @param secondMax the last selected index in secondModel + * @param reverse true if shift was held for the event + * @param eventIsTab true if TAB was pressed, false if ENTER pressed + */ + void advanceMultipleSelection(JTable table, ListSelectionModel firstModel, + int firstMin, + int firstMax, ListSelectionModel secondModel, + int secondMin, int secondMax, boolean reverse, + boolean eventIsTab) + { + // If eventIsTab, all the "firsts" correspond to columns, otherwise, to + // rows "seconds" correspond to the opposite + int firstLead = firstModel.getLeadSelectionIndex(); + int secondLead = secondModel.getLeadSelectionIndex(); + int numFirsts = eventIsTab ? + table.getModel().getColumnCount() : table.getModel().getRowCount(); + int numSeconds = eventIsTab ? + table.getModel().getRowCount() : table.getModel().getColumnCount(); + + // check if we have to wrap the "firsts" around, going to the other side + if ((firstLead == firstMax && !reverse) || + (reverse && firstLead == firstMin)) + { + firstModel.addSelectionInterval(reverse ? firstMax : firstMin, + reverse ? firstMax : firstMin); + + // check if we have to wrap the "seconds" + if ((secondLead == secondMax && !reverse) || + (reverse && secondLead == secondMin)) + secondModel.addSelectionInterval(reverse ? secondMax : secondMin, + reverse ? secondMax : secondMin); + + // if we're not wrapping the seconds, we have to find out where we + // are within the secondModel and advance to the next cell (or + // go back to the previous cell if reverse == true) + else + { + int[] secondsSelected; + if (eventIsTab && table.getRowSelectionAllowed() || + !eventIsTab && table.getColumnSelectionAllowed()) + secondsSelected = eventIsTab ? + table.getSelectedRows() : table.getSelectedColumns(); + else + { + // if row selection is not allowed, then the entire column gets + // selected when you click on it, so consider ALL rows selected + secondsSelected = new int[numSeconds]; + for (int i = 0; i < numSeconds; i++) + secondsSelected[i] = i; + } + + // and now find the "next" index within the model + int secondIndex = reverse ? secondsSelected.length - 1 : 0; + if (!reverse) + while (secondsSelected[secondIndex] <= secondLead) + secondIndex++; + else + while (secondsSelected[secondIndex] >= secondLead) + secondIndex--; + + // and select it - updating the lead selection index + secondModel.addSelectionInterval(secondsSelected[secondIndex], + secondsSelected[secondIndex]); + } + } + // We didn't have to wrap the firsts, so just find the "next" first + // and select it, we don't have to change "seconds" + else + { + int[] firstsSelected; + if (eventIsTab && table.getColumnSelectionAllowed() || + !eventIsTab && table.getRowSelectionAllowed()) + firstsSelected = eventIsTab ? + table.getSelectedColumns() : table.getSelectedRows(); + else + { + // if selection not allowed, consider ALL firsts to be selected + firstsSelected = new int[numFirsts]; + for (int i = 0; i < numFirsts; i++) + firstsSelected[i] = i; + } + int firstIndex = reverse ? firstsSelected.length - 1 : 0; + if (!reverse) + while (firstsSelected[firstIndex] <= firstLead) + firstIndex++; + else + while (firstsSelected[firstIndex] >= firstLead) + firstIndex--; + firstModel.addSelectionInterval(firstsSelected[firstIndex], + firstsSelected[firstIndex]); + secondModel.addSelectionInterval(secondLead, secondLead); + } + } + + /** + * A helper method for the key bindings. Used because the actions + * for TAB, SHIFT-TAB, ENTER, and SHIFT-ENTER are very similar. + * + * Selects the next (previous if SHIFT pressed) column (TAB) or row (ENTER) + * in the table, changing the current selection. All cells in the table + * are eligible, not just the ones that are currently selected. + * @param firstModel the ListSelectionModel for columns (TAB) or rows + * (ENTER) + * @param firstMax the last index in firstModel + * @param secondModel the ListSelectionModel for rows (TAB) or columns + * (ENTER) + * @param secondMax the last index in secondModel + * @param reverse true if SHIFT was pressed for the event + */ + + void advanceSingleSelection(ListSelectionModel firstModel, int firstMax, + ListSelectionModel secondModel, int secondMax, + boolean reverse) + { + // for TABs, "first" corresponds to columns and "seconds" to rows. + // the opposite is true for ENTERs + int firstLead = firstModel.getLeadSelectionIndex(); + int secondLead = secondModel.getLeadSelectionIndex(); + + // if we are going backwards subtract 2 because we later add 1 + // for a net change of -1 + if (reverse && (firstLead == 0)) + { + // check if we have to wrap around + if (secondLead == 0) + secondLead += secondMax + 1; + secondLead -= 2; + } + + // do we have to wrap the "seconds"? + if (reverse && (firstLead == 0) || !reverse && (firstLead == firstMax)) + secondModel.setSelectionInterval((secondLead + 1) % (secondMax + 1), + (secondLead + 1) % (secondMax + 1)); + // if not, just reselect the current lead + else + secondModel.setSelectionInterval(secondLead, secondLead); + + // if we are going backwards, subtract 2 because we add 1 later + // for net change of -1 + if (reverse) + { + // check for wraparound + if (firstLead == 0) + firstLead += firstMax + 1; + firstLead -= 2; + } + // select the next "first" + firstModel.setSelectionInterval((firstLead + 1) % (firstMax + 1), + (firstLead + 1) % (firstMax + 1)); + } + } + + protected void installListeners() + { + if (focusListener == null) + focusListener = createFocusListener(); + table.addFocusListener(focusListener); + if (keyListener == null) + keyListener = createKeyListener(); + table.addKeyListener(keyListener); + if (mouseInputListener == null) + mouseInputListener = createMouseInputListener(); + table.addMouseListener(mouseInputListener); + table.addMouseMotionListener(mouseInputListener); + if (propertyChangeListener == null) + propertyChangeListener = new PropertyChangeHandler(); + table.addPropertyChangeListener(propertyChangeListener); + } + + /** + * Uninstalls UI defaults that have been installed by + * {@link #installDefaults()}. + */ + protected void uninstallDefaults() + { + // Nothing to do here for now. + } + + /** + * Uninstalls the keyboard actions that have been installed by + * {@link #installKeyboardActions()}. + */ + protected void uninstallKeyboardActions() + { + SwingUtilities.replaceUIInputMap(table, JComponent. + WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, null); + SwingUtilities.replaceUIActionMap(table, null); + } + + protected void uninstallListeners() + { + table.removeFocusListener(focusListener); + table.removeKeyListener(keyListener); + table.removeMouseListener(mouseInputListener); + table.removeMouseMotionListener(mouseInputListener); + table.removePropertyChangeListener(propertyChangeListener); + propertyChangeListener = null; + } + + public void installUI(JComponent comp) + { + table = (JTable) comp; + rendererPane = new CellRendererPane(); + table.add(rendererPane); + + installDefaults(); + installKeyboardActions(); + installListeners(); + } + + public void uninstallUI(JComponent c) + { + uninstallListeners(); + uninstallKeyboardActions(); + uninstallDefaults(); + + table.remove(rendererPane); + rendererPane = null; + table = null; + } + + /** + * Paints a single cell in the table. + * + * @param g The graphics context to paint in + * @param row The row number to paint + * @param col The column number to paint + * @param bounds The bounds of the cell to paint, assuming a coordinate + * system beginning at <code>(0,0)</code> in the upper left corner of the + * table + * @param rend A cell renderer to paint with + */ + void paintCell(Graphics g, int row, int col, Rectangle bounds, + TableCellRenderer rend) + { + Component comp = table.prepareRenderer(rend, row, col); + rendererPane.paintComponent(g, comp, table, bounds); + } + + /** + * Paint the associated table. + */ + public void paint(Graphics gfx, JComponent ignored) + { + int ncols = table.getColumnCount(); + int nrows = table.getRowCount(); + if (nrows == 0 || ncols == 0) + return; + + Rectangle clip = gfx.getClipBounds(); + + // Determine the range of cells that are within the clip bounds. + Point p1 = new Point(clip.x, clip.y); + int c0 = table.columnAtPoint(p1); + if (c0 == -1) + c0 = 0; + int r0 = table.rowAtPoint(p1); + if (r0 == -1) + r0 = 0; + Point p2 = new Point(clip.x + clip.width, clip.y + clip.height); + int cn = table.columnAtPoint(p2); + if (cn == -1) + cn = table.getColumnCount() - 1; + int rn = table.rowAtPoint(p2); + if (rn == -1) + rn = table.getRowCount() - 1; + + int columnMargin = table.getColumnModel().getColumnMargin(); + int rowMargin = table.getRowMargin(); + + TableColumnModel cmodel = table.getColumnModel(); + int[] widths = new int[cn + 1]; + for (int i = c0; i <= cn; i++) + { + widths[i] = cmodel.getColumn(i).getWidth() - columnMargin; + } + + Rectangle bounds = table.getCellRect(r0, c0, false); + // The left boundary of the area being repainted. + int left = bounds.x; + + // The top boundary of the area being repainted. + int top = bounds.y; + + // The bottom boundary of the area being repainted. + int bottom; + + // paint the cell contents + Color grid = table.getGridColor(); + for (int r = r0; r <= rn; ++r) + { + for (int c = c0; c <= cn; ++c) + { + bounds.width = widths[c]; + paintCell(gfx, r, c, bounds, table.getCellRenderer(r, c)); + bounds.x += widths[c] + columnMargin; + } + bounds.x = left; + bounds.y += table.getRowHeight(r); + // Update row height for tables with custom heights. + bounds.height = table.getRowHeight(r + 1) - rowMargin; + } + + bottom = bounds.y - rowMargin; + + // paint vertical grid lines + if (grid != null && table.getShowVerticalLines()) + { + Color save = gfx.getColor(); + gfx.setColor(grid); + int x = left - columnMargin; + for (int c = c0; c <= cn; ++c) + { + // The vertical grid is draw right from the cells, so we + // add before drawing. + x += widths[c] + columnMargin; + gfx.drawLine(x, top, x, bottom); + } + gfx.setColor(save); + } + + // paint horizontal grid lines + if (grid != null && table.getShowHorizontalLines()) + { + Color save = gfx.getColor(); + gfx.setColor(grid); + int y = top - rowMargin; + for (int r = r0; r <= rn; ++r) + { + // The horizontal grid is draw below the cells, so we + // add before drawing. + y += table.getRowHeight(r); + gfx.drawLine(left, y, p2.x, y); + } + gfx.setColor(save); + } + } +} |