/* 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.std.memory;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.IOException;
import javax.swing.JFileChooser;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPopupMenu;
import com.cburch.logisim.circuit.CircuitState;
import com.cburch.logisim.gui.hex.HexFile;
import com.cburch.logisim.gui.hex.HexFrame;
import com.cburch.logisim.instance.Instance;
import com.cburch.logisim.proj.Project;
import com.cburch.logisim.tools.MenuExtender;
class MemMenu implements ActionListener, MenuExtender {
private Mem factory;
private Instance instance;
private Project proj;
private Frame frame;
private CircuitState circState;
private JMenuItem edit;
private JMenuItem clear;
private JMenuItem load;
private JMenuItem save;
MemMenu(Mem factory, Instance instance) {
this.factory = factory;
this.instance = instance;
}
public void configureMenu(JPopupMenu menu, Project proj) {
this.proj = proj;
this.frame = proj.getFrame();
this.circState = proj.getCircuitState();
Object attrs = instance.getAttributeSet();
if (attrs instanceof RomAttributes) {
((RomAttributes) attrs).setProject(proj);
}
boolean enabled = circState != null;
edit = createItem(enabled, Strings.get("ramEditMenuItem"));
clear = createItem(enabled, Strings.get("ramClearMenuItem"));
load = createItem(enabled, Strings.get("ramLoadMenuItem"));
save = createItem(enabled, Strings.get("ramSaveMenuItem"));
menu.addSeparator();
menu.add(edit);
menu.add(clear);
menu.add(load);
menu.add(save);
}
private JMenuItem createItem(boolean enabled, String label) {
JMenuItem ret = new JMenuItem(label);
ret.setEnabled(enabled);
ret.addActionListener(this);
return ret;
}
public void actionPerformed(ActionEvent evt) {
Object src = evt.getSource();
if (src == edit) doEdit();
else if (src == clear) doClear();
else if (src == load) doLoad();
else if (src == save) doSave();
}
private void doEdit() {
MemState s = factory.getState(instance, circState);
if (s == null) return;
HexFrame frame = factory.getHexFrame(proj, instance, circState);
frame.setVisible(true);
frame.toFront();
}
private void doClear() {
MemState s = factory.getState(instance, circState);
boolean isAllZero = s.getContents().isClear();
if (isAllZero) return;
int choice = JOptionPane.showConfirmDialog(frame,
Strings.get("ramConfirmClearMsg"),
Strings.get("ramConfirmClearTitle"),
JOptionPane.YES_NO_OPTION);
if (choice == JOptionPane.YES_OPTION) {
s.getContents().clear();
}
}
private void doLoad() {
JFileChooser chooser = proj.createChooser();
File oldSelected = factory.getCurrentImage(instance);
if (oldSelected != null) chooser.setSelectedFile(oldSelected);
chooser.setDialogTitle(Strings.get("ramLoadDialogTitle"));
int choice = chooser.showOpenDialog(frame);
if (choice == JFileChooser.APPROVE_OPTION) {
File f = chooser.getSelectedFile();
try {
factory.loadImage(circState.getInstanceState(instance), f);
} catch (IOException e) {
JOptionPane.showMessageDialog(frame, e.getMessage(),
Strings.get("ramLoadErrorTitle"), JOptionPane.ERROR_MESSAGE);
}
}
}
private void doSave() {
MemState s = factory.getState(instance, circState);
JFileChooser chooser = proj.createChooser();
File oldSelected = factory.getCurrentImage(instance);
if (oldSelected != null) chooser.setSelectedFile(oldSelected);
chooser.setDialogTitle(Strings.get("ramSaveDialogTitle"));
int choice = chooser.showSaveDialog(frame);
if (choice == JFileChooser.APPROVE_OPTION) {
File f = chooser.getSelectedFile();
try {
HexFile.save(f, s.getContents());
factory.setCurrentImage(instance, f);
} catch (IOException e) {
JOptionPane.showMessageDialog(frame, e.getMessage(),
Strings.get("ramSaveErrorTitle"), JOptionPane.ERROR_MESSAGE);
}
}
}
}