org.apache.cayenne.modeler.util.CayenneAction Maven / Gradle / Ivy
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.cayenne.modeler.util;
import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
import org.apache.cayenne.configuration.ConfigurationNode;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.ProjectController;
import org.apache.cayenne.modeler.dialog.ErrorDebugDialog;
import org.apache.cayenne.project.Project;
import org.apache.cayenne.util.Util;
/**
* Superclass of CayenneModeler actions that implements support for some common
* functionality, exception handling, etc.
*/
public abstract class CayenneAction extends AbstractAction {
protected boolean alwaysOn;
protected Application application;
/**
* Creates a named CayenneAction.
*/
public CayenneAction(String name, Application application) {
this(name, application, name);
}
/**
* Creates a named CayenneAction.
*/
public CayenneAction(String name, Application application, String shortDescription) {
super(name);
super.putValue(Action.DEFAULT, name);
this.application = application;
Icon icon = createIcon();
if (icon != null) {
super.putValue(Action.SMALL_ICON, icon);
}
KeyStroke accelerator = getAcceleratorKey();
if (accelerator != null) {
super.putValue(Action.ACCELERATOR_KEY, accelerator);
}
if (shortDescription != null && shortDescription.length() > 0) {
super.putValue(Action.SHORT_DESCRIPTION, shortDescription);
}
setEnabled(false);
}
public Application getApplication() {
return application;
}
protected Project getCurrentProject() {
return application.getFrameController().getProjectController().getProject();
}
/**
* Changes the name of this action, propagating the change to all widgets using this
* action.
*/
public void setName(String newName) {
if (!Util.nullSafeEquals(getValue(Action.NAME), newName)) {
super.putValue(Action.NAME, newName);
}
}
/**
* Returns keyboard shortcut for this action. Default implementation returns
* null.
*/
public KeyStroke getAcceleratorKey() {
return null;
}
/**
* Returns the name of the icon that should be used for buttons. Name will be reolved
* relative to RESOURCE_PATH. Default implementation returns
* null.
*/
public String getIconName() {
return null;
}
/**
* Creates and returns an ImageIcon that can be used for buttons that rely on this
* action. Returns null if getIconName returns
* null.
*/
public Icon createIcon() {
String name = getIconName();
return (name != null) ? ModelerUtil.buildIcon(name) : null;
}
/**
* Returns the key under which this action should be stored in the ActionMap.
*/
public String getKey() {
return (String) super.getValue(Action.DEFAULT);
}
/**
* Subclasses must implement this method instead of actionPerformed to
* allow for exception handling.
*/
public abstract void performAction(ActionEvent e);
/**
* Returns true if the action is enabled for the specified "project
* path" - a path on the project tree to a currently selected object. Default
* implementation simply returns false.
*/
public boolean enableForPath(ConfigurationNode object) {
return false;
}
/**
* Returns current project controller.
*/
public ProjectController getProjectController() {
return application.getFrameController().getProjectController();
}
/**
* Internally calls performAction. Traps exceptions that ocurred
* during action processing.
*/
public void actionPerformed(ActionEvent e) {
try {
performAction(e);
}
catch (Throwable th) {
ErrorDebugDialog.guiException(th);
}
}
/**
* Factory method that creates a menu item hooked up to this action.
*/
public JMenuItem buildMenu() {
return new JMenuItem(this);
}
/**
* Factory method that creates a checkbox menu item hooked up to this action.
*/
public JCheckBoxMenuItem buildCheckBoxMenu() {
return new JCheckBoxMenuItem(this);
}
/**
* Factory method that creates a button hooked up to this action.
*/
public JButton buildButton() {
return new CayenneToolbarButton(this);
}
/**
* Returns true if this action is always enabled.
*
* @return boolean
*/
public boolean isAlwaysOn() {
return alwaysOn;
}
/**
* Sets the alwaysOn.
*
* @param alwaysOn The alwaysOn to set
*/
public void setAlwaysOn(boolean alwaysOn) {
this.alwaysOn = alwaysOn;
if (alwaysOn) {
super.setEnabled(true);
}
}
/**
* Overrides super implementation to take into account "alwaysOn" flag.
*/
@Override
public void setEnabled(boolean b) {
if (!isAlwaysOn()) {
super.setEnabled(b);
}
}
/**
* On changes in action text, will update toolbar tip instead.
*/
final class CayenneToolbarButton extends JButton {
protected boolean showingText;
/**
* Constructor for CayenneMenuItem.
*/
public CayenneToolbarButton(Action a) {
super();
setAction(a);
}
/**
* Returns the showingText.
*/
public boolean isShowingText() {
return showingText;
}
/**
* Sets the showingText.
*/
public void setShowingText(boolean showingText) {
this.showingText = showingText;
}
/**
* @see javax.swing.AbstractButton#getText()
*/
@Override
public String getText() {
return (showingText) ? super.getText() : null;
}
/**
* @see javax.swing.AbstractButton#setText(String)
*/
@Override
public void setText(String text) {
if (showingText) {
super.setText(text);
}
else {
super.setToolTipText(text);
}
}
}
}