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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 | 398 |
1 files changed, 398 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 00000000000..778743619bc --- /dev/null +++ b/libjava/classpath/javax/swing/plaf/basic/BasicTableUI.java @@ -0,0 +1,398 @@ +/* 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.Dimension; +import java.awt.Graphics; +import java.awt.Point; +import java.awt.Rectangle; +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 javax.swing.BorderFactory; +import javax.swing.CellRendererPane; +import javax.swing.JComponent; +import javax.swing.JTable; +import javax.swing.ListSelectionModel; +import javax.swing.UIDefaults; +import javax.swing.UIManager; +import javax.swing.border.Border; +import javax.swing.event.MouseInputListener; +import javax.swing.plaf.ComponentUI; +import javax.swing.plaf.TableUI; +import javax.swing.table.TableCellRenderer; +import javax.swing.table.TableColumn; +import javax.swing.table.TableColumnModel; + +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 cell border for selected/highlighted cells. */ + Border highlightCellBorder; + + class FocusHandler implements FocusListener + { + public void focusGained(FocusEvent e) + { + } + public void focusLost(FocusEvent e) + { + } + } + + class KeyHandler implements KeyListener + { + public void keyPressed(KeyEvent e) + { + } + public void keyReleased(KeyEvent e) + { + } + public void keyTyped(KeyEvent e) + { + } + } + + class MouseInputHandler implements MouseInputListener + { + Point begin, curr; + + private void updateSelection(boolean controlPressed) + { + if (table.getRowSelectionAllowed()) + { + 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); + } + } + + if (table.getColumnSelectionAllowed()) + { + 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); + } + } + } + + public void mouseClicked(MouseEvent e) + { + } + public void mouseDragged(MouseEvent e) + { + curr = new Point(e.getX(), e.getY()); + updateSelection(e.isControlDown()); + } + public void mouseEntered(MouseEvent e) + { + } + public void mouseExited(MouseEvent e) + { + } + public void mouseMoved(MouseEvent e) + { + } + public void mousePressed(MouseEvent e) + { + 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()); + + } + public void mouseReleased(MouseEvent e) + { + begin = null; + curr = null; + } + } + + protected FocusListener createFocusListener() + { + return new FocusHandler(); + } + protected KeyListener createKeyListener() + { + return new KeyHandler(); + } + protected MouseInputListener createMouseInputListener() + { + return new MouseInputHandler(); + } + + public Dimension getMaximumSize(JComponent comp) + { + return getPreferredSize(comp); + } + + public Dimension getMinimumSize(JComponent comp) + { + return getPreferredSize(comp); + } + + public Dimension getPreferredSize(JComponent comp) + { + int width = table.getColumnModel().getTotalColumnWidth(); + int height = table.getRowCount() * table.getRowHeight(); + return new Dimension(width, height); + } + + protected void installDefaults() + { + UIDefaults defaults = UIManager.getLookAndFeelDefaults(); + table.setFont(defaults.getFont("Table.font")); + table.setGridColor(defaults.getColor("Table.gridColor")); + table.setForeground(defaults.getColor("Table.foreground")); + table.setBackground(defaults.getColor("Table.background")); + table.setSelectionForeground(defaults.getColor("Table.selectionForeground")); + table.setSelectionBackground(defaults.getColor("Table.selectionBackground")); + table.setOpaque(true); + + highlightCellBorder = defaults.getBorder("Table.focusCellHighlightBorder"); + cellBorder = BorderFactory.createEmptyBorder(1, 1, 1, 1); + } + protected void installKeyboardActions() + { + } + + protected void installListeners() + { + table.addFocusListener(focusListener); + table.addKeyListener(keyListener); + table.addMouseListener(mouseInputListener); + table.addMouseMotionListener(mouseInputListener); + } + + protected void uninstallDefaults() + { + // TODO: this method used to do the following which is not + // quite right (at least it breaks apps that run fine with the + // JDK): + // + // table.setFont(null); + // table.setGridColor(null); + // table.setForeground(null); + // table.setBackground(null); + // table.setSelectionForeground(null); + // table.setSelectionBackground(null); + // + // This would leave the component in a corrupt state, which is + // not acceptable. A possible solution would be to have component + // level defaults installed, that get overridden by the UI defaults + // and get restored in this method. I am not quite sure about this + // though. / Roman Kennke + } + + protected void uninstallKeyboardActions() + { + } + + protected void uninstallListeners() + { + table.removeFocusListener(focusListener); + table.removeKeyListener(keyListener); + table.removeMouseListener(mouseInputListener); + table.removeMouseMotionListener(mouseInputListener); + } + + public void installUI(JComponent comp) + { + table = (JTable)comp; + focusListener = createFocusListener(); + keyListener = createKeyListener(); + mouseInputListener = createMouseInputListener(); + installDefaults(); + installKeyboardActions(); + installListeners(); + } + + public void uninstallUI(JComponent c) + { + uninstallListeners(); + uninstallKeyboardActions(); + uninstallDefaults(); + } + + 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(); + TableColumnModel cols = table.getColumnModel(); + + int height = table.getRowHeight(); + int x0 = 0, y0 = 0; + int x = x0; + int y = y0; + + Dimension gap = table.getIntercellSpacing(); + int ymax = clip.y + clip.height; + int xmax = clip.x + clip.width; + + // paint the cell contents + for (int c = 0; c < ncols && x < xmax; ++c) + { + y = y0; + TableColumn col = cols.getColumn(c); + int width = col.getWidth(); + int modelCol = col.getModelIndex(); + + for (int r = 0; r < nrows && y < ymax; ++r) + { + Rectangle bounds = new Rectangle(x, y, width, height); + if (bounds.intersects(clip)) + { + TableCellRenderer rend = table.getCellRenderer(r, c); + Component comp = table.prepareRenderer(rend, r, c); + gfx.translate(x, y); + comp.setBounds(new Rectangle(0, 0, width, height)); + // Set correct border on cell renderer. + if (comp instanceof JComponent) + { + if (table.isCellSelected(r, c)) + ((JComponent) comp).setBorder(highlightCellBorder); + else + ((JComponent) comp).setBorder(cellBorder); + } + comp.paint(gfx); + gfx.translate(-x, -y); + } + y += height; + if (gap != null) + y += gap.height; + } + x += width; + if (gap != null) + x += gap.width; + } + + // tighten up the x and y max bounds + ymax = y; + xmax = x; + + Color grid = table.getGridColor(); + + // paint vertical grid lines + if (grid != null && table.getShowVerticalLines()) + { + x = x0; + Color save = gfx.getColor(); + gfx.setColor(grid); + boolean paintedLine = false; + for (int c = 0; c < ncols && x < xmax; ++c) + { + x += cols.getColumn(c).getWidth();; + if (gap != null) + x += gap.width; + gfx.drawLine(x, y0, x, ymax); + paintedLine = true; + } + gfx.setColor(save); + } + + // paint horizontal grid lines + if (grid != null && table.getShowHorizontalLines()) + { + y = y0; + Color save = gfx.getColor(); + gfx.setColor(grid); + boolean paintedLine = false; + for (int r = 0; r < nrows && y < ymax; ++r) + { + y += height; + if (gap != null) + y += gap.height; + gfx.drawLine(x0, y, xmax, y); + paintedLine = true; + } + gfx.setColor(save); + } + + } + +} |