/*
* Copyright 2003-2016 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.mps.nodeEditor;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import java.awt.BorderLayout;
import java.awt.Dialog;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.HeadlessException;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.ArrayList;
import java.util.List;
public class MPSErrorDialog extends JDialog {
private static final int MIN_SIDE_PADDING = 30;
private List<JButton> myButtons = new ArrayList<JButton>();
private boolean myIsInitialized = false;
private JTextField myField;
private final Window myOwner;
private String myErrorString;
private KeyListener myEscapeListener = new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
dispose();
e.consume();
}
}
};
public MPSErrorDialog(Frame frame, String error, String title) {
this(frame, error, title, true);
}
public MPSErrorDialog(Window window, String error, String title, boolean initializeUI) throws HeadlessException {
super(window, title, Dialog.DEFAULT_MODALITY_TYPE);
myOwner = window;
init(error);
if (initializeUI) {
initializeUI();
setVisible(true);
}
}
private void init(String error) {
myErrorString = error;
setLayout(new BorderLayout());
myField = new JTextField(error);
myField.setEditable(false);
myField.addKeyListener(myEscapeListener);
JButton button = new JButton(new AbstractAction("OK") {
@Override
public void actionPerformed(ActionEvent e) {
dispose();
}
});
getRootPane().setDefaultButton(button);
myButtons.add(button);
}
public void initializeUI() {
int textWidth = myField.getFontMetrics(myField.getFont()).stringWidth(myErrorString);
JPanel panel = new JPanel(new GridLayout(1, myButtons.size()));
for (JButton jButton : myButtons) {
panel.add(jButton);
}
panel.doLayout();
int buttonsWidth = (int) panel.getPreferredSize().getWidth();
int minPanelWidth = Math.max(2 * MIN_SIDE_PADDING + buttonsWidth, 2 * MIN_SIDE_PADDING + textWidth);
int calculatedButtonsPadding = (minPanelWidth - buttonsWidth) / 2;
int calculatedTextPadding = (minPanelWidth - textWidth) / 2;
panel.setBorder(new EmptyBorder(5, calculatedButtonsPadding, 15, calculatedButtonsPadding));
myField.setBorder(new EmptyBorder(20, calculatedTextPadding, 5, calculatedTextPadding));
add(myField, BorderLayout.CENTER);
add(panel, BorderLayout.SOUTH);
pack();
setResizable(false);
setLocation(myOwner.getX() + (myOwner.getWidth() - this.getWidth()) / 2,
myOwner.getY() + (myOwner.getHeight() - this.getHeight()) / 2);
myIsInitialized = true;
}
public void addButton(JButton button) {
myButtons.add(button);
myIsInitialized = false;
}
@Override
public void setVisible(boolean b) {
assert !b || myIsInitialized;
super.setVisible(b);
}
}