/*
* The Huffman class constructor
*/
public Huffman(int Width, int Height) {
bits = new Vector();
bits.addElement(bitsDCluminance);
bits.addElement(bitsACluminance);
bits.addElement(bitsDCchrominance);
bits.addElement(bitsACchrominance);
val = new Vector();
val.addElement(valDCluminance);
val.addElement(valACluminance);
val.addElement(valDCchrominance);
val.addElement(valACchrominance);
initHuf();
code = code;
ImageWidth = Width;
ImageHeight = Height;
}
/*.................................................................................................................*/
public TreeDisplayExtra createTreeDisplayExtra(TreeDisplay treeDisplay) {
PAdjustToolExtra newPj = new PAdjustToolExtra(this, treeDisplay);
extras.addElement(newPj);
return newPj;
}
/** Method declaration */
private void refreshTree() {
tTree.removeAll();
try {
int color_table = Color.yellow.getRGB();
int color_column = Color.orange.getRGB();
int color_index = Color.red.getRGB();
tTree.addRow("", dMeta.getURL(), "-", 0);
String usertables[] = {"TABLE"};
ResultSet result = dMeta.getTables(null, null, null, usertables);
Vector tables = new Vector();
// sqlbob@users Added remarks.
Vector remarks = new Vector();
while (result.next()) {
tables.addElement(result.getString(3));
remarks.addElement(result.getString(5));
}
result.close();
for (int i = 0; i < tables.size(); i++) {
String name = (String) tables.elementAt(i);
String key = "tab-" + name + "-";
tTree.addRow(key, name, "+", color_table);
// sqlbob@users Added remarks.
String remark = (String) remarks.elementAt(i);
if ((remark != null) && !remark.trim().equals("")) {
tTree.addRow(key + "r", " " + remark);
}
ResultSet col = dMeta.getColumns(null, null, name, null);
while (col.next()) {
String c = col.getString(4);
String k1 = key + "col-" + c + "-";
tTree.addRow(k1, c, "+", color_column);
String type = col.getString(6);
tTree.addRow(k1 + "t", "Type: " + type);
boolean nullable = col.getInt(11) != DatabaseMetaData.columnNoNulls;
tTree.addRow(k1 + "n", "Nullable: " + nullable);
}
col.close();
tTree.addRow(key + "ind", "Indices", "+", 0);
ResultSet ind = dMeta.getIndexInfo(null, null, name, false, false);
String oldiname = null;
while (ind.next()) {
boolean nonunique = ind.getBoolean(4);
String iname = ind.getString(6);
String k2 = key + "ind-" + iname + "-";
if ((oldiname == null || !oldiname.equals(iname))) {
tTree.addRow(k2, iname, "+", color_index);
tTree.addRow(k2 + "u", "Unique: " + !nonunique);
oldiname = iname;
}
String c = ind.getString(9);
tTree.addRow(k2 + "c-" + c + "-", c);
}
ind.close();
}
tTree.addRow("p", "Properties", "+", 0);
tTree.addRow("pu", "User: "******"pr", "ReadOnly: " + cConn.isReadOnly());
tTree.addRow("pa", "AutoCommit: " + cConn.getAutoCommit());
tTree.addRow("pd", "Driver: " + dMeta.getDriverName());
tTree.addRow("pp", "Product: " + dMeta.getDatabaseProductName());
tTree.addRow("pv", "Version: " + dMeta.getDatabaseProductVersion());
} catch (SQLException e) {
tTree.addRow("", "Error getting metadata:", "-", 0);
tTree.addRow("-", e.getMessage());
tTree.addRow("-", e.getSQLState());
}
tTree.update();
}
/**
* Adds the specified class to a Vector to keep it from being garbage collected, causing static
* fields to be reset.
*/
public void register(Class c) {
if (!classes.contains(c)) classes.addElement(c);
}
/**
* parse the text. When the text is parsed the width, height, leading are all calculated. The text
* will only be truly parsed if the graphics context has changed or the text has changed or the
* font has changed. Otherwise nothing is done when this method is called.
*
* @param g Graphics context.
*/
public void parseText(Graphics g) {
FontMetrics fm;
TextState current = new TextState();
char ch;
Stack state = new Stack();
int w = 0;
if (lg != g) parse = true;
lg = g;
if (!parse) return;
parse = false;
width = 0;
leading = 0;
ascent = 0;
descent = 0;
height = 0;
maxAscent = 0;
maxDescent = 0;
if (text == null || g == null) return;
list.removeAllElements();
if (font == null) current.f = g.getFont();
else current.f = font;
state.push(current);
list.addElement(current);
fm = g.getFontMetrics(current.f);
for (int i = 0; i < text.length(); i++) {
ch = text.charAt(i);
switch (ch) {
case '$':
i++;
if (i < text.length()) current.s.append(text.charAt(i));
break;
/*
** Push the current state onto the state stack
** and start a new storage string
*/
case '{':
w = current.getWidth(g);
if (!current.isEmpty()) {
current = current.copyState();
list.addElement(current);
}
state.push(current);
current.x += w;
break;
/*
** Pop the state off the state stack and set the current
** state to the top of the state stack
*/
case '}':
w = current.x + current.getWidth(g);
state.pop();
current = ((TextState) state.peek()).copyState();
list.addElement(current);
current.x = w;
break;
case '^':
w = current.getWidth(g);
if (!current.isEmpty()) {
current = current.copyState();
list.addElement(current);
}
current.f = getScriptFont(current.f);
current.x += w;
current.y -= (int) ((double) (current.getAscent(g)) * sup_offset + 0.5);
break;
case '_':
w = current.getWidth(g);
if (!current.isEmpty()) {
current = current.copyState();
list.addElement(current);
}
current.f = getScriptFont(current.f);
current.x += w;
current.y += (int) ((double) (current.getDescent(g)) * sub_offset + 0.5);
break;
default:
current.s.append(ch);
break;
}
}
for (int i = 0; i < list.size(); i++) {
current = ((TextState) (list.elementAt(i)));
if (!current.isEmpty()) {
width += current.getWidth(g);
ascent = Math.max(ascent, Math.abs(current.y) + current.getAscent(g));
descent = Math.max(descent, Math.abs(current.y) + current.getDescent(g));
leading = Math.max(leading, current.getLeading(g));
maxDescent = Math.max(maxDescent, Math.abs(current.y) + current.getMaxDescent(g));
maxAscent = Math.max(maxAscent, Math.abs(current.y) + current.getMaxAscent(g));
}
}
height = ascent + descent + leading;
return;
}
public void addLight(Light light) {
lights.addElement(light);
}
/* Clear all existing nodes from the tree model and rebuild from scratch.
*/
protected void refreshTree() {
DefaultMutableTreeNode propertiesNode;
DefaultMutableTreeNode leaf;
// First clear the existing tree by simply enumerating
// over the root node's children and removing them one by one.
while (treeModel.getChildCount(rootNode) > 0) {
DefaultMutableTreeNode child = (DefaultMutableTreeNode) treeModel.getChild(rootNode, 0);
treeModel.removeNodeFromParent(child);
child.removeAllChildren();
child.removeFromParent();
}
treeModel.nodeStructureChanged(rootNode);
treeModel.reload();
tScrollPane.repaint();
// Now rebuild the tree below its root
try {
// Start by naming the root node from its URL:
rootNode.setUserObject(dMeta.getURL());
// get metadata about user tables by building a vector of table names
String usertables[] = {"TABLE", "GLOBAL TEMPORARY", "VIEW"};
ResultSet result = dMeta.getTables(null, null, null, usertables);
Vector tables = new Vector();
// sqlbob@users Added remarks.
Vector remarks = new Vector();
while (result.next()) {
tables.addElement(result.getString(3));
remarks.addElement(result.getString(5));
}
result.close();
// For each table, build a tree node with interesting info
for (int i = 0; i < tables.size(); i++) {
String name = (String) tables.elementAt(i);
DefaultMutableTreeNode tableNode = makeNode(name, rootNode);
ResultSet col = dMeta.getColumns(null, null, name, null);
// sqlbob@users Added remarks.
String remark = (String) remarks.elementAt(i);
if ((remark != null) && !remark.trim().equals("")) {
makeNode(remark, tableNode);
}
// With a child for each column containing pertinent attributes
while (col.next()) {
String c = col.getString(4);
DefaultMutableTreeNode columnNode = makeNode(c, tableNode);
String type = col.getString(6);
makeNode("Type: " + type, columnNode);
boolean nullable = col.getInt(11) != DatabaseMetaData.columnNoNulls;
makeNode("Nullable: " + nullable, columnNode);
}
col.close();
DefaultMutableTreeNode indexesNode = makeNode("Indices", tableNode);
ResultSet ind = dMeta.getIndexInfo(null, null, name, false, false);
String oldiname = null;
// A child node to contain each index - and its attributes
while (ind.next()) {
DefaultMutableTreeNode indexNode = null;
boolean nonunique = ind.getBoolean(4);
String iname = ind.getString(6);
if ((oldiname == null || !oldiname.equals(iname))) {
indexNode = makeNode(iname, indexesNode);
makeNode("Unique: " + !nonunique, indexNode);
oldiname = iname;
}
// And the ordered column list for index components
makeNode(ind.getString(9), indexNode);
}
ind.close();
}
// Finally - a little additional metadata on this connection
propertiesNode = makeNode("Properties", rootNode);
makeNode("User: "******"ReadOnly: " + cConn.isReadOnly(), propertiesNode);
makeNode("AutoCommit: " + cConn.getAutoCommit(), propertiesNode);
makeNode("Driver: " + dMeta.getDriverName(), propertiesNode);
makeNode("Product: " + dMeta.getDatabaseProductName(), propertiesNode);
makeNode("Version: " + dMeta.getDatabaseProductVersion(), propertiesNode);
} catch (SQLException se) {
propertiesNode = makeNode("Error getting metadata:", rootNode);
makeNode(se.getMessage(), propertiesNode);
makeNode(se.getSQLState(), propertiesNode);
}
treeModel.nodeStructureChanged(rootNode);
treeModel.reload();
tScrollPane.repaint();
}
