/* 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.main;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import com.cburch.logisim.circuit.Circuit;
import com.cburch.logisim.file.LibraryEvent;
import com.cburch.logisim.file.LibraryListener;
import com.cburch.logisim.gui.menu.LogisimMenuBar;
import com.cburch.logisim.proj.Action;
import com.cburch.logisim.proj.Project;
import com.cburch.logisim.proj.ProjectEvent;
import com.cburch.logisim.proj.ProjectListener;
import com.cburch.logisim.std.base.Base;
import com.cburch.logisim.tools.Library;
import com.cburch.logisim.tools.Tool;
public class LayoutEditHandler extends EditHandler
implements ProjectListener, LibraryListener, PropertyChangeListener {
private Frame frame;
LayoutEditHandler(Frame frame) {
this.frame = frame;
Project proj = frame.getProject();
Clipboard.addPropertyChangeListener(Clipboard.contentsProperty, this);
proj.addProjectListener(this);
proj.addLibraryListener(this);
}
@Override
public void computeEnabled() {
Project proj = frame.getProject();
Selection sel = proj == null ? null : proj.getSelection();
boolean selEmpty = (sel == null ? true : sel.isEmpty());
boolean canChange = proj != null && proj.getLogisimFile().contains(proj.getCurrentCircuit());
boolean selectAvailable = false;
for (Library lib : proj.getLogisimFile().getLibraries()) {
if (lib instanceof Base) {
selectAvailable = true;
}
}
setEnabled(LogisimMenuBar.CUT, !selEmpty && selectAvailable && canChange);
setEnabled(LogisimMenuBar.COPY, !selEmpty && selectAvailable);
setEnabled(LogisimMenuBar.PASTE, selectAvailable && canChange
&& !Clipboard.isEmpty());
setEnabled(LogisimMenuBar.DELETE, !selEmpty && selectAvailable && canChange);
setEnabled(LogisimMenuBar.DUPLICATE, !selEmpty && selectAvailable && canChange);
setEnabled(LogisimMenuBar.SELECT_ALL, selectAvailable);
setEnabled(LogisimMenuBar.RAISE, false);
setEnabled(LogisimMenuBar.LOWER, false);
setEnabled(LogisimMenuBar.RAISE_TOP, false);
setEnabled(LogisimMenuBar.LOWER_BOTTOM, false);
setEnabled(LogisimMenuBar.ADD_CONTROL, false);
setEnabled(LogisimMenuBar.REMOVE_CONTROL, false);
}
@Override
public void cut() {
Project proj = frame.getProject();
Selection sel = frame.getCanvas().getSelection();
proj.doAction(SelectionActions.cut(sel));
}
@Override
public void copy() {
Project proj = frame.getProject();
Selection sel = frame.getCanvas().getSelection();
proj.doAction(SelectionActions.copy(sel));
}
@Override
public void paste() {
Project proj = frame.getProject();
Selection sel = frame.getCanvas().getSelection();
selectSelectTool(proj);
Action action = SelectionActions.pasteMaybe(proj, sel);
if (action != null) {
proj.doAction(action);
}
}
@Override
public void delete() {
Project proj = frame.getProject();
Selection sel = frame.getCanvas().getSelection();
proj.doAction(SelectionActions.clear(sel));
}
@Override
public void duplicate() {
Project proj = frame.getProject();
Selection sel = frame.getCanvas().getSelection();
proj.doAction(SelectionActions.duplicate(sel));
}
@Override
public void selectAll() {
Project proj = frame.getProject();
Selection sel = frame.getCanvas().getSelection();
selectSelectTool(proj);
Circuit circ = proj.getCurrentCircuit();
sel.addAll(circ.getWires());
sel.addAll(circ.getNonWires());
proj.repaintCanvas();
}
@Override
public void raise() {
// not yet supported in layout mode
;
}
@Override
public void lower() {
// not yet supported in layout mode
;
}
@Override
public void raiseTop() {
// not yet supported in layout mode
;
}
@Override
public void lowerBottom() {
// not yet supported in layout mode
;
}
@Override
public void addControlPoint() {
// not yet supported in layout mode
;
}
@Override
public void removeControlPoint() {
// not yet supported in layout mode
;
}
private void selectSelectTool(Project proj) {
for (Library sub : proj.getLogisimFile().getLibraries()) {
if (sub instanceof Base) {
Base base = (Base) sub;
Tool tool = base.getTool("Edit Tool");
if (tool != null) {
proj.setTool(tool);
}
}
}
}
@Override
public void projectChanged(ProjectEvent e) {
int action = e.getAction();
if (action == ProjectEvent.ACTION_SET_FILE) {
computeEnabled();
} else if (action == ProjectEvent.ACTION_SET_CURRENT) {
computeEnabled();
} else if (action == ProjectEvent.ACTION_SELECTION) {
computeEnabled();
}
}
@Override
public void libraryChanged(LibraryEvent e) {
int action = e.getAction();
if (action == LibraryEvent.ADD_LIBRARY) {
computeEnabled();
} else if (action == LibraryEvent.REMOVE_LIBRARY) {
computeEnabled();
}
}
@Override
public void propertyChange(PropertyChangeEvent event) {
if (event.getPropertyName().equals(Clipboard.contentsProperty)) {
computeEnabled();
}
}
}