private void setSelection(int rowAnchor, int rowLead, int colAnchor, int colLead) {
setAnchor(rowAnchor, colAnchor);
setLead(rowLead, colLead);
table.setRowSelectionInterval(
clamp(rowAnchor, 0, numUsableRows), clamp(rowLead, 0, numUsableRows));
table.setColumnSelectionInterval(colAnchor, colLead);
}
private void maybeGrabSelection() {
if (table.getSelectedRow() != -1) {
// Grab selection
ListSelectionModel rowSel = table.getSelectionModel();
ListSelectionModel colSel = table.getColumnModel().getSelectionModel();
if (!haveAnchor()) {
// System.err.println("Updating from table's selection");
setSelection(
rowSel.getAnchorSelectionIndex(), rowSel.getLeadSelectionIndex(),
colSel.getAnchorSelectionIndex(), colSel.getLeadSelectionIndex());
} else {
// System.err.println("Updating lead from table's selection");
setSelection(
getRowAnchor(), rowSel.getLeadSelectionIndex(),
getColAnchor(), colSel.getLeadSelectionIndex());
}
// printSelection();
}
}
private void recomputeNumVisibleRows() {
Rectangle rect = new Rectangle();
getBounds(rect);
int h = table.getRowHeight();
numVisibleRows = (rect.height + (h - 1)) / h;
numUsableRows = numVisibleRows - 2;
scrollBar.setBlockIncrementHP(new BigInteger(Integer.toString(addressSize * (numUsableRows))));
model.fireTableDataChanged();
// FIXME: refresh selection
}
public MemoryPanel(final Debugger debugger, boolean is64Bit) {
super();
this.debugger = debugger;
this.is64Bit = is64Bit;
if (is64Bit) {
addressSize = 8;
unmappedAddrString = "??????????????????";
} else {
addressSize = 4;
unmappedAddrString = "??????????";
}
setLayout(new BorderLayout());
setupScrollBar();
add(scrollBar, BorderLayout.EAST);
model =
new AbstractTableModel() {
public int getRowCount() {
return numVisibleRows;
}
public int getColumnCount() {
return 2;
}
public Object getValueAt(int row, int column) {
switch (column) {
case 0:
return bigIntToHexString(
startVal.add(new BigInteger(Integer.toString((row * addressSize)))));
case 1:
{
try {
Address addr =
bigIntToAddress(
startVal.add(new BigInteger(Integer.toString((row * addressSize)))));
if (addr != null) {
return addressToString(addr.getAddressAt(0));
}
return unmappedAddrString;
} catch (UnmappedAddressException e) {
return unmappedAddrString;
}
}
default:
throw new RuntimeException("Column " + column + " out of bounds");
}
}
public boolean isCellEditable(int row, int col) {
return false;
}
};
// View with JTable with no header
table = new JTable(model);
table.setTableHeader(null);
table.setShowGrid(false);
table.setIntercellSpacing(new Dimension(0, 0));
table.setCellSelectionEnabled(true);
table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
table.setDragEnabled(true);
Font font = GraphicsUtilities.lookupFont("Courier");
if (font == null) {
throw new RuntimeException("Error looking up monospace font Courier");
}
table.setFont(font);
// Export proper data.
// We need to keep our own notion of the selection in order to
// properly export data, since the selection can go beyond the
// visible area on the screen (and since the table's model doesn't
// back all of those slots).
// Code thanks to Shannon.Hickey@sfbay
table.setTransferHandler(
new TransferHandler() {
protected Transferable createTransferable(JComponent c) {
JTable table = (JTable) c;
if (haveSelection()) {
StringBuffer buf = new StringBuffer();
int iDir = (getRowAnchor() < getRowLead() ? 1 : -1);
int jDir = (getColAnchor() < getColLead() ? 1 : -1);
for (int i = getRowAnchor(); i != getRowLead() + iDir; i += iDir) {
for (int j = getColAnchor(); j != getColLead() + jDir; j += jDir) {
Object val = model.getValueAt(i, j);
buf.append(val == null ? "" : val.toString());
if (j != getColLead()) {
buf.append("\t");
}
}
if (i != getRowLead()) {
buf.append("\n");
}
}
return new StringTransferable(buf.toString());
}
return null;
}
public int getSourceActions(JComponent c) {
return COPY;
}
public boolean importData(JComponent c, Transferable t) {
if (canImport(c, t.getTransferDataFlavors())) {
try {
String str = (String) t.getTransferData(DataFlavor.stringFlavor);
handleImport(c, str);
return true;
} catch (UnsupportedFlavorException ufe) {
} catch (IOException ioe) {
}
}
return false;
}
public boolean canImport(JComponent c, DataFlavor[] flavors) {
for (int i = 0; i < flavors.length; i++) {
if (DataFlavor.stringFlavor.equals(flavors[i])) {
return true;
}
}
return false;
}
private void handleImport(JComponent c, String str) {
// do whatever you want with the string here
try {
makeVisible(debugger.parseAddress(str));
clearSelection();
table.clearSelection();
} catch (NumberFormatException e) {
System.err.println("Unable to parse address \"" + str + "\"");
}
}
});
// Supporting keyboard scrolling
// See src/share/classes/javax/swing/plaf/metal/MetalLookAndFeel.java,
// search for Table.AncestorInputMap
// Actions to override:
// selectPreviousRow, selectNextRow,
// scrollUpChangeSelection, scrollDownChangeSelection,
// selectPreviousRowExtendSelection, selectNextRowExtendSelection,
// scrollDownExtendSelection, scrollUpExtendSelection (Shift-PgDn/PgUp)
ActionMap map = table.getActionMap();
// Up arrow
installActionWrapper(
map,
"selectPreviousRow",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
clearSelection();
if (table.getSelectedRow() == 0) {
scrollBar.scrollUpOrLeft();
table.setRowSelectionInterval(0, 0);
} else {
super.actionPerformed(e);
}
maybeGrabSelection();
endUpdate();
}
});
// Down arrow
installActionWrapper(
map,
"selectNextRow",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
clearSelection();
int row = table.getSelectedRow();
if (row >= numUsableRows) {
scrollBar.scrollDownOrRight();
table.setRowSelectionInterval(row, row);
} else {
super.actionPerformed(e);
}
maybeGrabSelection();
endUpdate();
}
});
// Page up
installActionWrapper(
map,
"scrollUpChangeSelection",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
clearSelection();
int row = table.getSelectedRow();
scrollBar.pageUpOrLeft();
if (row >= 0) {
table.setRowSelectionInterval(row, row);
}
maybeGrabSelection();
endUpdate();
}
});
// Page down
installActionWrapper(
map,
"scrollDownChangeSelection",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
clearSelection();
int row = table.getSelectedRow();
scrollBar.pageDownOrRight();
if (row >= 0) {
table.setRowSelectionInterval(row, row);
}
maybeGrabSelection();
endUpdate();
}
});
// Shift + Up arrow
installActionWrapper(
map,
"selectPreviousRowExtendSelection",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
if (!haveAnchor()) {
setAnchorFromTable();
setLeadFromTable();
// setAnchor(table.getSelectedRow());
// setLead(table.getSelectedRow());
}
int newLead = getRowLead() - 1;
int newAnchor = getRowAnchor();
if (newLead < 0) {
scrollBar.scrollUpOrLeft();
++newLead;
++newAnchor;
}
setSelection(newAnchor, newLead, getColAnchor(), getColLead());
// printSelection();
endUpdate();
}
});
// Shift + Left arrow
installActionWrapper(
map,
"selectPreviousColumnExtendSelection",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
if (!haveAnchor()) {
setAnchorFromTable();
setLeadFromTable();
}
int newLead = Math.max(0, getColLead() - 1);
setSelection(getRowAnchor(), getRowLead(), getColAnchor(), newLead);
// printSelection();
endUpdate();
}
});
// Shift + Down arrow
installActionWrapper(
map,
"selectNextRowExtendSelection",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
if (!haveAnchor()) {
setAnchorFromTable();
setLeadFromTable();
// setAnchor(table.getSelectedRow());
// setLead(table.getSelectedRow());
}
int newLead = getRowLead() + 1;
int newAnchor = getRowAnchor();
if (newLead > numUsableRows) {
scrollBar.scrollDownOrRight();
--newLead;
--newAnchor;
}
setSelection(newAnchor, newLead, getColAnchor(), getColLead());
// printSelection();
endUpdate();
}
});
// Shift + Right arrow
installActionWrapper(
map,
"selectNextColumnExtendSelection",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
if (!haveAnchor()) {
setAnchorFromTable();
setLeadFromTable();
}
int newLead = Math.min(model.getColumnCount() - 1, getColLead() + 1);
setSelection(getRowAnchor(), getRowLead(), getColAnchor(), newLead);
// printSelection();
endUpdate();
}
});
// Shift + Page up
installActionWrapper(
map,
"scrollUpExtendSelection",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
if (!haveAnchor()) {
setAnchorFromTable();
setLeadFromTable();
// setAnchor(table.getSelectedRow());
// setLead(table.getSelectedRow());
}
int newLead = getRowLead() - numUsableRows;
int newAnchor = getRowAnchor();
if (newLead < 0) {
scrollBar.pageUpOrLeft();
newLead += numUsableRows;
newAnchor += numUsableRows;
}
setSelection(newAnchor, newLead, getColAnchor(), getColLead());
// printSelection();
endUpdate();
}
});
// Shift + Page down
installActionWrapper(
map,
"scrollDownExtendSelection",
new ActionWrapper() {
public void actionPerformed(ActionEvent e) {
beginUpdate();
if (!haveAnchor()) {
setAnchorFromTable();
setLeadFromTable();
// setAnchor(table.getSelectedRow());
// setLead(table.getSelectedRow());
}
int newLead = getRowLead() + numUsableRows;
int newAnchor = getRowAnchor();
if (newLead > numUsableRows) {
scrollBar.pageDownOrRight();
newLead -= numUsableRows;
newAnchor -= numUsableRows;
}
setSelection(newAnchor, newLead, getColAnchor(), getColLead());
// printSelection();
endUpdate();
}
});
// Clear our notion of selection upon mouse press
table.addMouseListener(
new MouseAdapter() {
public void mousePressed(MouseEvent e) {
if (shouldIgnore(e)) {
return;
}
// Make shift-clicking work properly
if (e.isShiftDown()) {
maybeGrabSelection();
return;
}
// System.err.println(" Clearing selection on mouse press");
clearSelection();
}
});
// Watch for mouse going out of bounds
table.addMouseMotionListener(
new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
if (shouldIgnore(e)) {
// System.err.println(" (Ignoring consumed mouse event)");
return;
}
// Look for drag events outside table and scroll if necessary
Point p = e.getPoint();
if (table.rowAtPoint(p) == -1) {
// See whether we are above or below the table
Rectangle rect = new Rectangle();
getBounds(rect);
beginUpdate();
if (p.y < rect.y) {
// System.err.println(" Scrolling up due to mouse event");
// Scroll up
scrollBar.scrollUpOrLeft();
setSelection(getRowAnchor(), 0, getColAnchor(), getColLead());
} else {
// System.err.println(" Scrolling down due to mouse event");
// Scroll down
scrollBar.scrollDownOrRight();
setSelection(getRowAnchor(), numUsableRows, getColAnchor(), getColLead());
}
// printSelection();
endUpdate();
} else {
maybeGrabSelection();
}
}
});
add(table, BorderLayout.CENTER);
// Make sure we recompute number of visible rows
addComponentListener(
new ComponentAdapter() {
public void componentResized(ComponentEvent e) {
recomputeNumVisibleRows();
constrain();
}
});
addHierarchyListener(
new HierarchyListener() {
public void hierarchyChanged(HierarchyEvent e) {
recomputeNumVisibleRows();
constrain();
}
});
updateFromScrollBar();
}
private void setLeadFromTable() {
setLead(
table.getSelectionModel().getAnchorSelectionIndex(),
table.getColumnModel().getSelectionModel().getAnchorSelectionIndex());
}
private boolean shouldIgnore(MouseEvent e) {
return e.isConsumed() || (!(SwingUtilities.isLeftMouseButton(e) && table.isEnabled()));
}