This commit is contained in:
Phil Race 2018-06-19 10:12:00 -07:00
commit 316d8c0d42
6 changed files with 962 additions and 2 deletions

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@ -0,0 +1,368 @@
/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import org.jtregext.GuiTestListener;
import com.sun.swingset3.demos.gridbaglayout.GridBagLayoutDemo;
import static com.sun.swingset3.demos.gridbaglayout.GridBagLayoutDemo.*;
import static com.sun.swingset3.demos.gridbaglayout.Calculator.*;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Point;
import javax.swing.JButton;
import javax.swing.UIManager;
import org.testng.annotations.Test;
import org.netbeans.jemmy.ClassReference;
import org.netbeans.jemmy.operators.JFrameOperator;
import org.netbeans.jemmy.operators.JButtonOperator;
import org.netbeans.jemmy.operators.JTextFieldOperator;
import org.testng.annotations.Listeners;
import static org.jemmy2ext.JemmyExt.EXACT_STRING_COMPARATOR;
import static org.jemmy2ext.JemmyExt.getUIValue;
/*
* @test
* @key headful
* @summary Verifies SwingSet3 GridBagLayoutDemo by checking the relative
* location of all the components before and after resizing the frame,
* interacting with all the controls and checking this interaction on the
* text field display.
*
* @library /sanity/client/lib/jemmy/src
* @library /sanity/client/lib/Extensions/src
* @library /sanity/client/lib/SwingSet3/src
* @modules java.desktop
* java.logging
* @build com.sun.swingset3.demos.gridbaglayout.GridBagLayoutDemo
* @run testng GridBagLayoutDemoTest
*/
@Listeners(GuiTestListener.class)
public class GridBagLayoutDemoTest {
private JTextFieldOperator tfScreen;
private JButtonOperator buttonZero;
private JButtonOperator buttonOne;
private JButtonOperator buttonTwo;
private JButtonOperator buttonThree;
private JButtonOperator buttonFour;
private JButtonOperator buttonFive;
private JButtonOperator buttonSix;
private JButtonOperator buttonSeven;
private JButtonOperator buttonEight;
private JButtonOperator buttonNine;
private JButtonOperator buttonPlus;
private JButtonOperator buttonMinus;
private JButtonOperator buttonMultiply;
private JButtonOperator buttonDivide;
private JButtonOperator buttonComma;
private JButtonOperator buttonSqrt;
private JButtonOperator buttonReciprocal;
private JButtonOperator buttonToggleSign;
private JButtonOperator buttonEquals;
private JButtonOperator backspaceButton;
private JButtonOperator resetButton;
private JFrameOperator mainFrame;
@Test(dataProvider = "availableLookAndFeels", dataProviderClass = TestHelpers.class)
public void test(String lookAndFeel) throws Exception {
initializeUIComponents(lookAndFeel);
// Check that the relative location of buttons is as expected.
checkRelativeLocations();
// Interact with buttons and check the result on the display.
checkInteractionOnDisplay();
// Change the location and check that the relative location of buttons is same as before.
checkChangeLocation();
// Change the size and check that the relative location of buttons is same as before.
checkChangeSize();
}
private double x(Component component) {
return component.getLocation().getX();
}
private double y(Component component) {
return component.getLocation().getY();
}
private void checkRight(JButtonOperator currentButton, JButtonOperator rightButton) {
// Check that x coordinate of right button is greater than that of right
// end of current button
currentButton.waitStateOnQueue(button -> x(button) + button.getWidth() < x(rightButton.getSource()));
// Check that the y coordinate of the button is same as the button to
// the right
currentButton.waitStateOnQueue(button -> y(button) == y(rightButton.getSource()));
// Check that the height of the button is same as the button to the
// right
currentButton.waitStateOnQueue(button -> button.getHeight() == rightButton.getHeight());
}
private void checkBelow(JButtonOperator currentButton, JButtonOperator buttonBelow) {
// Check that y coordinate of button below is greater than that of
// bottom end of current button
currentButton.waitStateOnQueue(button -> y(button) + button.getHeight() < y(buttonBelow.getSource()));
// Check that the x coordinate of the button is same as the button below
currentButton.waitStateOnQueue(button -> x(button) == x(buttonBelow.getSource()));
// Check that the width of the button is same as the button below
currentButton.waitStateOnQueue(button -> button.getWidth() == buttonBelow.getWidth());
}
private void checkRelativeLocations() {
// Check relative location of button 7
checkRight(buttonSeven, buttonEight);
checkBelow(buttonSeven, buttonFour);
// Check relative location of button 8
checkRight(buttonEight, buttonNine);
checkBelow(buttonEight, buttonFive);
// Check relative location of button 9
checkRight(buttonNine, buttonDivide);
checkBelow(buttonNine, buttonSix);
// Check relative location of Division button
checkRight(buttonDivide, buttonReciprocal);
checkBelow(buttonDivide, buttonMultiply);
// Check relative location of Reciprocal and Sqrt buttons
checkBelow(buttonReciprocal, buttonSqrt);
// Check relative location of button 4
checkRight(buttonFour, buttonFive);
checkBelow(buttonFour, buttonOne);
// Check relative location of button 5
checkRight(buttonFive, buttonSix);
checkBelow(buttonFive, buttonTwo);
// Check relative location of button 6
checkRight(buttonSix, buttonMultiply);
checkBelow(buttonSix, buttonThree);
// Check relative location of Multiply button
checkRight(buttonMultiply, buttonSqrt);
checkBelow(buttonMultiply, buttonMinus);
// Check relative location of button 1
checkRight(buttonOne, buttonTwo);
checkBelow(buttonOne, buttonZero);
// Check relative location of button 2
checkRight(buttonTwo, buttonThree);
checkBelow(buttonTwo, buttonToggleSign);
// Check relative location of button 3
checkRight(buttonThree, buttonMinus);
checkBelow(buttonThree, buttonComma);
// Check relative location of Minus button
checkBelow(buttonMinus, buttonPlus);
// Check relative location of button 0
checkRight(buttonZero, buttonToggleSign);
// Check relative location of Sign Toggle Button
checkRight(buttonToggleSign, buttonComma);
// Check relative location of Comma button
checkRight(buttonComma, buttonPlus);
// Check relative location of plus and Equals buttons
checkRight(buttonPlus, buttonEquals);
// Check relative location of JPanel containing Backspace and Reset
// buttons
Point parentLocation = getUIValue(backspaceButton, (JButton button) -> button.getParent().getLocation());
// Check that the y coordinate of bottom of the screen is
// less than that of parent of backspace button
tfScreen.waitStateOnQueue(screen -> y(screen) + screen.getHeight() < parentLocation.getY());
// Check that the y coordinate of the button 7 is greater
// than that of parent of backspace
buttonSeven.waitStateOnQueue(button -> parentLocation.getY() < y(button));
// Check that the y coordinate of reciprocal button is greater
// than that of parent of backspace
buttonReciprocal.waitStateOnQueue(button -> parentLocation.getY() < y(button));
// Check that x coordinate of screen is same as that of parent of
// backspace
tfScreen.waitStateOnQueue(screen -> x(screen) == parentLocation.getX());
// Check that x coordinate of button 7 is same as that of parent of
// backspace
buttonSeven.waitStateOnQueue(button -> x(button) == parentLocation.getX());
// Check relative location of Backspace button
// Check that the x coordinate of right of backspace button
// is less than that of reset button
backspaceButton.waitStateOnQueue(button -> x(button) + button.getWidth() < x(resetButton.getSource()));
// Check that the height of backspace button is same as that of reset
// button
backspaceButton.waitStateOnQueue(button -> button.getHeight() == resetButton.getHeight());
// Check that the y coordinate bottom of backspace button is less that
// that of button 7
backspaceButton.waitStateOnQueue(
button -> parentLocation.getY() + button.getParent().getHeight() < y(buttonSeven.getSource()));
// Check that the x coordinate of reset button is greater than that
// of right of backspace button
resetButton.waitStateOnQueue(button -> x(backspaceButton.getSource()) + backspaceButton.getWidth() < x(button));
// Check that the height of reset button is same as that of backspace
// button
resetButton.waitStateOnQueue(button -> backspaceButton.getHeight() == button.getHeight());
// Check that the y coordinate of bottom of reset button is less
// than that of divide button.
resetButton.waitStateOnQueue(
button -> parentLocation.getY() + button.getParent().getHeight() < y(buttonDivide.getSource()));
// Check that the y coordinate of top of screen is lower
// than that of parent of backspace button
tfScreen.waitStateOnQueue(screen -> y(screen) + screen.getHeight() < parentLocation.getY());
}
private void checkInteractionOnDisplay() {
// Check buttons: 1,2,+,=,C
buttonOne.push();
tfScreen.waitText("1");
buttonPlus.push();
tfScreen.waitText("1");
buttonTwo.push();
tfScreen.waitText("2");
buttonEquals.push();
tfScreen.waitText("3");
resetButton.push();
tfScreen.waitText("0");
// Check buttons: 3,4,-
buttonFour.push();
tfScreen.waitText("4");
buttonMinus.push();
tfScreen.waitText("4");
buttonThree.push();
tfScreen.waitText("3");
buttonEquals.push();
tfScreen.waitText("1");
reset();
// Check buttons: 5,6,*
buttonFive.push();
tfScreen.waitText("5");
buttonMultiply.push();
tfScreen.waitText("5");
buttonSix.push();
tfScreen.waitText("6");
buttonEquals.push();
tfScreen.waitText("30");
reset();
// Check buttons: 8,9,/
buttonNine.push();
buttonNine.push();
tfScreen.waitText("99");
buttonDivide.push();
tfScreen.waitText("99");
buttonEight.push();
tfScreen.waitText("8");
buttonEquals.push();
tfScreen.waitText("12.375");
reset();
// Check buttons: 7,0,[+/-],Backspace
buttonSeven.push();
tfScreen.waitText("7");
buttonZero.push();
tfScreen.waitText("70");
buttonToggleSign.push();
tfScreen.waitText("-70");
buttonToggleSign.push();
tfScreen.waitText("70");
backspaceButton.push();
tfScreen.waitText("7");
reset();
// Check Sqrt Button
buttonFour.push();
buttonNine.push();
tfScreen.waitText("49");
buttonSqrt.push();
tfScreen.waitText("7");
reset();
// Check Reciprocal Button
buttonFour.push();
tfScreen.waitText("4");
buttonReciprocal.push();
tfScreen.waitText("0.25");
reset();
// Check Comma button
buttonFour.push();
buttonComma.push();
tfScreen.waitText("4,");
}
private void reset() {
resetButton.push();
tfScreen.waitText("0");
}
private void initializeUIComponents(String lookAndFeel) throws Exception {
UIManager.setLookAndFeel(lookAndFeel);
new ClassReference(GridBagLayoutDemo.class.getCanonicalName()).startApplication();
mainFrame = new JFrameOperator(GRID_BAG_LAYOUT_DEMO_TITLE);
mainFrame.setComparator(EXACT_STRING_COMPARATOR);
buttonZero = new JButtonOperator(mainFrame, ZERO_BUTTON_TITLE);
buttonOne = new JButtonOperator(mainFrame, ONE_BUTTON_TITLE);
buttonTwo = new JButtonOperator(mainFrame, TWO_BUTTON_TITLE);
buttonThree = new JButtonOperator(mainFrame, THREE_BUTTON_TITLE);
buttonFour = new JButtonOperator(mainFrame, FOUR_BUTTON_TITLE);
buttonFive = new JButtonOperator(mainFrame, FIVE_BUTTON_TITLE);
buttonSix = new JButtonOperator(mainFrame, SIX_BUTTON_TITLE);
buttonSeven = new JButtonOperator(mainFrame, SEVEN_BUTTON_TITLE);
buttonEight = new JButtonOperator(mainFrame, EIGHT_BUTTON_TITLE);
buttonNine = new JButtonOperator(mainFrame, NINE_BUTTON_TITLE);
buttonPlus = new JButtonOperator(mainFrame, PLUS_BUTTON_TITLE);
buttonMinus = new JButtonOperator(mainFrame, MINUS_BUTTON_TITLE);
buttonMultiply = new JButtonOperator(mainFrame, MULTIPLY_BUTTON_TITLE);
buttonDivide = new JButtonOperator(mainFrame, DIVIDE_BUTTON_TITLE);
buttonComma = new JButtonOperator(mainFrame, ",");
buttonSqrt = new JButtonOperator(mainFrame, SQRT_BUTTON_TITLE);
buttonReciprocal = new JButtonOperator(mainFrame, INVERSE_BUTTON_TITLE);
buttonToggleSign = new JButtonOperator(mainFrame, SWAPSIGN_BUTTON_TITLE);
buttonEquals = new JButtonOperator(mainFrame, EQUALS_BUTTON_TITLE);
resetButton = new JButtonOperator(mainFrame, C_BUTTON_TITLE);
backspaceButton = new JButtonOperator(mainFrame, BACKSPACE_BUTTON_TITLE);
tfScreen = new JTextFieldOperator(mainFrame, 0);
}
private void checkChangeLocation() {
Point startingPoint = new Point(100, 100);
mainFrame.setLocation(startingPoint);
mainFrame.waitComponentLocation(startingPoint);
checkRelativeLocations();
}
private void checkChangeSize() {
Dimension newSize = new Dimension((int) mainFrame.getToolkit().getScreenSize().getWidth() / 2,
(int) mainFrame.getToolkit().getScreenSize().getHeight() / 2);
mainFrame.setSize(newSize);
mainFrame.waitComponentSize(newSize);
checkRelativeLocations();
}
}

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import java.awt.Dimension;
import java.awt.Point;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
import java.nio.file.Path;
import javax.swing.UIManager;
import org.netbeans.jemmy.operators.ComponentOperator;
import org.testng.annotations.DataProvider;
public class TestHelpers {
/**
* A DataProvider having the class name of all the available look and feels
*
* @return a 2d Object array containing the class name of all the available
* look and feels
*/
@DataProvider(name = "availableLookAndFeels")
public static Object[][] provideAvailableLookAndFeels() {
UIManager.LookAndFeelInfo LookAndFeelInfos[]
= UIManager.getInstalledLookAndFeels();
Object[][] lookAndFeels = new Object[LookAndFeelInfos.length][1];
for (int i = 0; i < LookAndFeelInfos.length; i++) {
lookAndFeels[i][0] = LookAndFeelInfos[i].getClassName();
}
return lookAndFeels;
}
public static void checkChangeLocation(ComponentOperator component,
Point finalLocation) {
Point initialLocation = component.getLocation();
component.setLocation(finalLocation);
component.waitComponentLocation(finalLocation);
component.setLocation(initialLocation);
component.waitComponentLocation(initialLocation);
}
public static void checkChangeSize(ComponentOperator component,
@ -20,5 +43,7 @@ public class TestHelpers {
component.setSize(dimensionFinal);
component.waitComponentSize(dimensionFinal);
component.setSize(dimensionInitial);
component.waitComponentSize(dimensionInitial);
}
}

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/*
* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.swingset3.demos.gridbaglayout;
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import javax.swing.*;
/**
* Calculator
*
* @author Pavel Porvatov
*/
public class Calculator extends JComponent {
private static final String ZERO = "0";
private static final char DECIMAL_SEPARATOR = ',';
private final JTextField tfScreen = new JTextField();
private enum State {
INPUT_X,
INPUT_X_FINISHED,
INPUT_Y,
INPUT_Y_FINISHED
}
private enum Operator {
ADDITION,
SUBTRACTION,
MULTIPLICATION,
DIVISION,
SQRT,
INVERSE,
EQUALS
}
private final Map<Character, Operator> keyMapping = new HashMap<Character, Operator>();
private String operand_x;
private Operator operator;
private State state;
public static final String ZERO_BUTTON_TITLE = "0";
public static final String ONE_BUTTON_TITLE = "1";
public static final String TWO_BUTTON_TITLE = "2";
public static final String THREE_BUTTON_TITLE = "3";
public static final String FOUR_BUTTON_TITLE = "4";
public static final String FIVE_BUTTON_TITLE = "5";
public static final String SIX_BUTTON_TITLE = "6";
public static final String SEVEN_BUTTON_TITLE = "7";
public static final String EIGHT_BUTTON_TITLE = "8";
public static final String NINE_BUTTON_TITLE = "9";
public static final String PLUS_BUTTON_TITLE = "+";
public static final String MINUS_BUTTON_TITLE = "-";
public static final String DIVIDE_BUTTON_TITLE = "/";
public static final String MULTIPLY_BUTTON_TITLE = "*";
public static final String BACKSPACE_BUTTON_TITLE = "Backspace";
public static final String C_BUTTON_TITLE = "C";
public static final String EQUALS_BUTTON_TITLE = "=";
public static final String SWAPSIGN_BUTTON_TITLE = "+/-";
public static final String INVERSE_BUTTON_TITLE = "1/x";
public static final String SQRT_BUTTON_TITLE = "sqrt";
public static final String COMMA_BUTTON_TITLE = ",";
private static DecimalFormatSymbols decimalFormatSymbols;
private static DecimalFormat decimalFormat;
public Calculator() {
keyMapping.put('/', Operator.DIVISION);
keyMapping.put('*', Operator.MULTIPLICATION);
keyMapping.put('+', Operator.ADDITION);
keyMapping.put('-', Operator.SUBTRACTION);
keyMapping.put('\n', Operator.EQUALS);
decimalFormatSymbols = new DecimalFormatSymbols(Locale.US);
decimalFormatSymbols.setDecimalSeparator('.');
decimalFormat = new DecimalFormat("##0.###", decimalFormatSymbols);
initUI();
addKeyListener(new KeyAdapter() {
public void keyTyped(KeyEvent e) {
char c = e.getKeyChar();
if (Character.isDigit(c)) {
doProcessChar(c);
} else if (c == '.' || c == ',') {
doProcessChar(DECIMAL_SEPARATOR);
} else {
Operator operator = keyMapping.get(c);
if (operator != null) {
doProcessOperator(operator);
}
}
}
public void keyPressed(KeyEvent e) {
switch (e.getKeyCode()) {
case KeyEvent.VK_BACK_SPACE:
doProcessBackspace();
break;
case KeyEvent.VK_DELETE:
doReset();
}
}
});
doReset();
}
private void initUI() {
tfScreen.setHorizontalAlignment(JTextField.RIGHT);
JButton btnBackspace = new JButton(BACKSPACE_BUTTON_TITLE);
btnBackspace.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
doProcessBackspace();
}
});
JButton btnReset = new JButton(C_BUTTON_TITLE);
btnReset.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
doReset();
}
});
JPanel pnGridPanel = new JPanel(new GridLayout(1, 2, 8, 8));
pnGridPanel.add(btnBackspace);
pnGridPanel.add(btnReset);
setLayout(new GridBagLayout());
JButton btnSwapSign = new SquareButton(SWAPSIGN_BUTTON_TITLE);
btnSwapSign.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
doSwapSign();
}
});
addComp(tfScreen, 0, 0, 5, 1);
addComp(pnGridPanel, 0, 1, 5, 1);
addComp(new CharButton(SEVEN_BUTTON_TITLE.charAt(0)), 0, 2, 1, 1);
addComp(new CharButton(EIGHT_BUTTON_TITLE.charAt(0)), 1, 2, 1, 1);
addComp(new CharButton(NINE_BUTTON_TITLE.charAt(0)), 2, 2, 1, 1);
addComp(new OperatorButton(Operator.DIVISION, DIVIDE_BUTTON_TITLE), 3, 2, 1, 1);
addComp(new OperatorButton(Operator.INVERSE, INVERSE_BUTTON_TITLE), 4, 2, 1, 1);
addComp(new CharButton(FOUR_BUTTON_TITLE.charAt(0)), 0, 3, 1, 1);
addComp(new CharButton(FIVE_BUTTON_TITLE.charAt(0)), 1, 3, 1, 1);
addComp(new CharButton(SIX_BUTTON_TITLE.charAt(0)), 2, 3, 1, 1);
addComp(new OperatorButton(Operator.MULTIPLICATION, MULTIPLY_BUTTON_TITLE), 3, 3, 1, 1);
addComp(new OperatorButton(Operator.SQRT, SQRT_BUTTON_TITLE), 4, 3, 1, 1);
addComp(new CharButton(ONE_BUTTON_TITLE.charAt(0)), 0, 4, 1, 1);
addComp(new CharButton(TWO_BUTTON_TITLE.charAt(0)), 1, 4, 1, 1);
addComp(new CharButton(THREE_BUTTON_TITLE.charAt(0)), 2, 4, 1, 1);
addComp(new OperatorButton(Operator.SUBTRACTION, MINUS_BUTTON_TITLE), 3, 4, 1, 1);
addComp(new CharButton(ZERO_BUTTON_TITLE.charAt(0)), 0, 5, 1, 1);
addComp(btnSwapSign, 1, 5, 1, 1);
addComp(new CharButton(COMMA_BUTTON_TITLE.charAt(0)), 2, 5, 1, 1);
addComp(new OperatorButton(Operator.ADDITION, PLUS_BUTTON_TITLE), 3, 5, 1, 1);
addComp(new OperatorButton(Operator.EQUALS, EQUALS_BUTTON_TITLE), 4, 5, 1, 1);
// Set focusable false
resetFocusable(this);
setFocusable(true);
}
private static void resetFocusable(Component component) {
component.setFocusable(false);
if (component instanceof Container) {
for (Component c : ((Container) component).getComponents()) {
resetFocusable(c);
}
}
}
private void doReset() {
synchronized (this) {
operand_x = null;
operator = null;
state = State.INPUT_X;
}
tfScreen.setText(ZERO);
}
private void doProcessChar(char c) {
String text = tfScreen.getText();
String newValue;
synchronized (this) {
if (state == State.INPUT_X || state == State.INPUT_Y) {
newValue = attachChar(text, c);
if (stringToValue(newValue) == null) {
return;
}
} else {
newValue = attachChar("0", c);
if (stringToValue(newValue) == null) {
return;
}
if (operator == null) {
operand_x = null;
state = State.INPUT_X;
} else {
operand_x = text;
state = State.INPUT_Y;
}
}
}
tfScreen.setText(newValue);
}
private static String attachChar(String s, char c) {
if (Character.isDigit(c)) {
if (s.equals(ZERO)) {
return Character.toString(c);
}
if (s.equals("-" + ZERO)) {
return "-" + Character.toString(c);
}
return s + Character.toString(c);
} else {
return s + Character.toString(c);
}
}
private void doSwapSign() {
String text = tfScreen.getText();
tfScreen.setText(text.startsWith("-") ? text.substring(1) : "-" + text);
}
private void doProcessBackspace() {
String text = tfScreen.getText();
if (text.length() > 0) {
text = text.substring(0, text.length() - 1);
}
if (text.length() == 0 || text.equals("-")) {
text = ZERO;
}
if (stringToValue(text) != null) {
tfScreen.setText(text);
}
}
private void doProcessOperator(Operator operator) {
double y = stringToValue(tfScreen.getText());
// Process unary operators
boolean isUnary;
switch (operator) {
case SQRT:
tfScreen.setText(valueToString(Math.sqrt(y)));
isUnary = true;
break;
case INVERSE:
tfScreen.setText(valueToString(1 / y));
isUnary = true;
break;
default:
isUnary = false;
}
synchronized (this) {
if (isUnary) {
if (state == State.INPUT_X) {
state = State.INPUT_X_FINISHED;
}
if (state == State.INPUT_Y) {
state = State.INPUT_Y_FINISHED;
}
return;
}
// Process binary operators
if (state == State.INPUT_Y || state == State.INPUT_Y_FINISHED) {
double x = stringToValue(operand_x);
double result;
switch (this.operator) {
case ADDITION:
result = x + y;
break;
case SUBTRACTION:
result = x - y;
break;
case MULTIPLICATION:
result = x * y;
break;
case DIVISION:
result = x / y;
break;
default:
throw new IllegalStateException("Unsupported operation " + operator);
}
tfScreen.setText(valueToString(result));
}
this.operator = operator == Operator.EQUALS ? null : operator;
operand_x = null;
state = State.INPUT_X_FINISHED;
}
}
private static Double stringToValue(String value) {
try {
return new Double(value.replace(DECIMAL_SEPARATOR, '.'));
} catch (NumberFormatException e) {
// Continue convertion
}
if (value.endsWith(String.valueOf(DECIMAL_SEPARATOR))) {
try {
// Try convert uncompleted value
return new Double(value.substring(0, value.length() - 1));
} catch (NumberFormatException e) {
// Continue convertion
}
}
return null;
}
private static String valueToString(Double value) {
if (value == null) {
return ZERO;
} else {
String result = decimalFormat.format(value);
if (result.endsWith(".0")) {
result = result.substring(0, result.length() - 2);
}
if (result.equals("-0")) {
result = ZERO;
}
return result;
}
}
private void addComp(Component comp, int gridx, int gridy,
int gridwidth, int gridheight) {
add(comp, new GridBagConstraints(gridx, gridy, gridwidth, gridheight,
1, 1, GridBagConstraints.CENTER, GridBagConstraints.BOTH,
new Insets(4, 4, 4, 4), 0, 0));
}
private static class SquareButton extends JButton {
private SquareButton(String text) {
super(text);
setMargin(new Insets(2, 0, 2, 0));
}
public Dimension getMinimumSize() {
Dimension result = super.getMinimumSize();
if (result.width < result.height) {
result.width = result.height;
}
return result;
}
public Dimension getPreferredSize() {
return getMinimumSize();
}
}
private class CharButton extends SquareButton {
private CharButton(final char c) {
super(String.valueOf(c));
addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
doProcessChar(c);
}
});
}
}
private class OperatorButton extends SquareButton {
private OperatorButton(final Operator operator, String text) {
super(text);
addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
doProcessOperator(operator);
}
});
}
}
}

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/*
* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.swingset3.demos.gridbaglayout;
import java.awt.*;
import javax.swing.*;
import com.sun.swingset3.demos.JGridPanel;
import com.sun.swingset3.demos.ResourceManager;
import com.sun.swingset3.DemoProperties;
/**
* GridBagLayout Demo
*
* @author Pavel Porvatov
*/
@DemoProperties(
value = "GridBagLayout Demo",
category = "Containers",
description = "Demonstrates GridBagLayout, a layout which allows to arrange components in containers.",
sourceFiles = {
"com/sun/swingset3/demos/gridbaglayout/GridBagLayoutDemo.java",
"com/sun/swingset3/demos/gridbaglayout/Calculator.java",
"com/sun/swingset3/demos/JGridPanel.java",
"com/sun/swingset3/demos/ResourceManager.java",
"com/sun/swingset3/demos/gridbaglayout/resources/GridBagLayoutDemo.properties",
"com/sun/swingset3/demos/gridbaglayout/resources/images/GridBagLayoutDemo.gif"
}
)
public class GridBagLayoutDemo extends JPanel {
private final ResourceManager resourceManager = new ResourceManager(this.getClass());
private final JLabel lbCaption = new JLabel("<html>"
+ resourceManager.getString("GridBagLayoutDemo.caption.text") + "</html>");
private final Calculator calculator = new Calculator();
public static final String GRID_BAG_LAYOUT_DEMO_TITLE = GridBagLayoutDemo.class
.getAnnotation(DemoProperties.class).value();
/**
* main method allows us to run as a standalone demo.
*/
public static void main(String[] args) {
JFrame frame = new JFrame(GRID_BAG_LAYOUT_DEMO_TITLE);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(new GridBagLayoutDemo());
frame.setPreferredSize(new Dimension(800, 600));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public GridBagLayoutDemo() {
setLayout(new BorderLayout());
initUI();
}
private void initUI() {
JGridPanel pnContent = new JGridPanel(1, 0, 2);
pnContent.setBorderEqual(10);
pnContent.cell(lbCaption, JGridPanel.Layout.FILL).
cell().
cell(calculator, JGridPanel.Layout.CENTER, JGridPanel.Layout.FIRST).
cell();
add(pnContent);
}
}

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### GridBagLayout Demo ###
GridBagLayoutDemo.caption.text = This calculator uses the GridBagLayout layout manager to arrange components. \
GridBagLayout is very useful when you need to place components in a grid of rows and columns.