/* Copyright (c) 2010, Carl Burch. License information is located in the
* com.cburch.logisim.Main source code and at www.cburch.com/logisim/. */
package com.cburch.logisim.gui.log;
import java.io.File;
import java.util.HashMap;
import java.util.Iterator;
import javax.swing.JFrame;
import com.cburch.logisim.circuit.CircuitState;
import com.cburch.logisim.data.Value;
import com.cburch.logisim.util.EventSourceWeakSupport;
class Model {
private EventSourceWeakSupport<ModelListener> listeners;
private Selection selection;
private HashMap<SelectionItem,ValueLog> log;
private boolean fileEnabled = false;
private File file = null;
private boolean fileHeader = true;
private boolean selected = false;
private LogThread logger = null;
public Model(CircuitState circuitState) {
listeners = new EventSourceWeakSupport<ModelListener>();
selection = new Selection(circuitState, this);
log = new HashMap<SelectionItem,ValueLog>();
}
public boolean isSelected() {
return selected;
}
public void addModelListener(ModelListener l) { listeners.add(l); }
public void removeModelListener(ModelListener l) { listeners.remove(l); }
public CircuitState getCircuitState() {
return selection.getCircuitState();
}
public Selection getSelection() {
return selection;
}
public ValueLog getValueLog(SelectionItem item) {
ValueLog ret = log.get(item);
if (ret == null && selection.indexOf(item) >= 0) {
ret = new ValueLog();
log.put(item, ret);
}
return ret;
}
public boolean isFileEnabled() {
return fileEnabled;
}
public File getFile() {
return file;
}
public boolean getFileHeader() {
return fileHeader;
}
public void setFileEnabled(boolean value) {
if (fileEnabled == value) return;
fileEnabled = value;
fireFilePropertyChanged(new ModelEvent());
}
public void setFile(File value) {
if (file == null ? value == null : file.equals(value)) return;
file = value;
fileEnabled = file != null;
fireFilePropertyChanged(new ModelEvent());
}
public void setFileHeader(boolean value) {
if (fileHeader == value) return;
fileHeader = value;
fireFilePropertyChanged(new ModelEvent());
}
public void propagationCompleted() {
CircuitState circuitState = getCircuitState();
Value[] vals = new Value[selection.size()];
boolean changed = false;
for (int i = selection.size() - 1; i >= 0; i--) {
SelectionItem item = selection.get(i);
vals[i] = item.fetchValue(circuitState);
if (!changed) {
Value v = getValueLog(item).getLast();
changed = v == null ? vals[i] != null : !v.equals(vals[i]);
}
}
if (changed) {
for (int i = selection.size() - 1; i >= 0; i--) {
SelectionItem item = selection.get(i);
getValueLog(item).append(vals[i]);
}
fireEntryAdded(new ModelEvent(), vals);
}
}
public void setSelected(JFrame frame, boolean value) {
if (selected == value) return;
selected = value;
if (selected) {
logger = new LogThread(this);
logger.start();
} else {
if (logger != null) logger.cancel();
logger = null;
fileEnabled = false;
}
fireFilePropertyChanged(new ModelEvent());
}
void fireSelectionChanged(ModelEvent e) {
for (Iterator<SelectionItem> it = log.keySet().iterator(); it.hasNext(); ) {
SelectionItem i = it.next();
if (selection.indexOf(i) < 0) {
it.remove();
}
}
for (ModelListener l : listeners) {
l.selectionChanged(e);
}
}
private void fireEntryAdded(ModelEvent e, Value[] values) {
for (ModelListener l : listeners) {
l.entryAdded(e, values);
}
}
private void fireFilePropertyChanged(ModelEvent e) {
for (ModelListener l : listeners) {
l.filePropertyChanged(e);
}
}
}