1 /*
   2  * Copyright (c) 2006, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import java.awt.*;
  25 import java.awt.event.InputEvent;
  26 import static jdk.testlibrary.Asserts.assertTrue;
  27 
  28 /*
  29  * @test
  30  * @summary Have different components having different preferred sizes
  31  *          added to a grid layout having various values of row/columns.
  32  *          Check if the compnents are correctly laid out.
  33  *          The strategy followed is to calculate the component location
  34  *          depending on the preferred sizes and gaps and click the cornors
  35  *          of the components to check if events are triggered
  36  * @library ../../../../lib/testlibrary/
  37  * @build ExtendedRobot
  38  * @run main ComponentPreferredSize
  39  * @run main ComponentPreferredSize -hg 20 -vg 20
  40  */
  41 
  42 public class ComponentPreferredSize {
  43 
  44     private int hGap, vGap;
  45     private int width = 200;
  46     private int height = 200;
  47     private int rows = 3;
  48     private int columns = 2;
  49     private int componentCount = 6;
  50 
  51     private Button[] buttons;
  52     private Frame frame;
  53 
  54     private ExtendedRobot robot;
  55     private GridLayout layout;
  56 
  57     private boolean actionPerformed = false;
  58 
  59     public ComponentPreferredSize(int hGap, int vGap) throws Exception {
  60         this.hGap = hGap;
  61         this.vGap = vGap;
  62         robot = new ExtendedRobot();
  63         EventQueue.invokeAndWait( () -> {
  64             frame = new Frame("Test frame");
  65             frame.setSize(width, height);
  66             layout = new GridLayout(rows, columns, hGap, vGap);
  67             frame.setLayout(layout);
  68 
  69             buttons = new Button[componentCount];
  70             for (int i = 0; i < componentCount; i++) {
  71                 buttons[i] = new Button("Button" + i);
  72                 buttons[i].setPreferredSize(new Dimension((int) Math.random() * 100,
  73                         (int) Math.random() * 100));
  74                 frame.add(buttons[i]);
  75                 buttons[i].addActionListener((event) -> {actionPerformed = true;});
  76             }
  77 
  78             frame.setVisible(true);
  79         });
  80     }
  81 
  82     public static void main(String[] args) throws Exception {
  83         int hGap = 0;
  84         int vGap = 0;
  85         for (int i = 0; i < args.length; i++) {
  86             switch (args[i]) {
  87                 case "-hg":
  88                     hGap = Integer.parseInt(args[++i]);
  89                     break;
  90                 case "-vg":
  91                     vGap = Integer.parseInt(args[++i]);
  92                     break;
  93             }
  94         }
  95         new ComponentPreferredSize(hGap, vGap).doTest();
  96     }
  97 
  98     private void resizeFrame() throws Exception {
  99         EventQueue.invokeAndWait(() -> {
 100             Insets insets = frame.getInsets();
 101             double dH = (height-insets.top-insets.bottom - vGap*(rows-1)) % rows;
 102             double dW = (width-insets.left-insets.right - hGap*(columns-1)) % columns;
 103             height -= dH;
 104             width -= dW;
 105             frame.setSize(width, height);
 106             frame.revalidate();
 107         });
 108         robot.waitForIdle();
 109     }
 110 
 111     public void testBoundaries(int topLeftX, int topLeftY, int bottomRightX, int bottomRightY) throws Exception {
 112 
 113         actionPerformed = false;
 114         robot.mouseMove(topLeftX, topLeftY);
 115         robot.delay(500);
 116         robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
 117         robot.delay(500);
 118         robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
 119         robot.delay(3000);
 120         robot.waitForIdle();
 121 
 122         assertTrue(actionPerformed, "Clicking on the left top of button triggered action event");
 123 
 124         actionPerformed = false;
 125         robot.mouseMove(bottomRightX, bottomRightY);
 126         robot.delay(500);
 127         robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
 128         robot.delay(500);
 129         robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
 130         robot.delay(3000);
 131         robot.waitForIdle();
 132 
 133         assertTrue(actionPerformed, "Clicking on the bottom right of button triggered action event");
 134     }
 135 
 136     private void doTest() throws Exception {
 137         robot.waitForIdle();
 138         resizeFrame();
 139 
 140         int availableWidth = width - frame.getInsets().left -
 141                 frame.getInsets().right;
 142         int componentWidth = (availableWidth + hGap) / columns - hGap;
 143         int availableHeight = height - frame.getInsets().top -
 144                 frame.getInsets().bottom;
 145         int componentHeight = (availableHeight + vGap) / rows - vGap;
 146 
 147         for (int i = 0; i < buttons.length; i++) {
 148             if (buttons[i].getSize().width != componentWidth ||
 149                     buttons[i].getSize().height != componentHeight) {
 150                 throw new RuntimeException(
 151                         "FAIL: Button " + i + " not of proper size" +
 152                         "Expected: " + componentWidth + "*" + componentHeight +
 153                         "Actual: " + buttons[i].getSize().width + "*" + buttons[i].getSize().height);
 154             }
 155         }
 156 
 157         // Components are visible. They should trigger events.
 158         // Now you can check for the actual size shown.
 159         int currentRow = 1;
 160         int currentColumn = 0;
 161         for (int i = 0; i < buttons.length; i++) {
 162             currentColumn++;
 163             if (currentColumn > columns) {
 164                 currentColumn = 1;
 165                 currentRow++;
 166             }
 167 
 168             int topPosX = frame.getLocationOnScreen().x +
 169                     frame.getInsets().left +
 170                     (currentColumn - 1) * (componentWidth + hGap);
 171             int topPosY = frame.getLocationOnScreen().y +
 172                     frame.getInsets().top +
 173                     (currentRow - 1) * (componentHeight + vGap);
 174 
 175             int bottomPosX = topPosX + componentWidth - 1;
 176             int bottomPosY = topPosY + componentHeight - 1;
 177             testBoundaries(topPosX, topPosY, bottomPosX, bottomPosY);
 178         }
 179     }
 180 }