java/compiler/forms-compiler/testSrc/com/intellij/uiDesigner/core/GapsTest.java

/*
 * Copyright 2000-2009 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 com.intellij.uiDesigner.core;

import junit.framework.TestCase;

import javax.swing.*;
import java.awt.*;

public final class GapsTest extends TestCase{
  public void test1() {
    final JPanel panel = new JPanel(new GridLayoutManager(1,2, new Insets(0,0,0,0), 10, 0));

    final JTextField field1 = new JTextField();
    field1.setPreferredSize(new Dimension(100,20));
    final JTextField field2 = new JTextField();
    field2.setPreferredSize(new Dimension(100,20));

    panel.add(field1, new GridConstraints(0,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_WANT_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(field2, new GridConstraints(0,1,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_WANT_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    final Dimension preferredSize = panel.getPreferredSize();
    assertEquals(210, preferredSize.width);
  }

  /**
   * field (span 2) | field (span 1)
   */
  public void test2() {
    final JPanel panel = new JPanel(new GridLayoutManager(1,3, new Insets(0,0,0,0), 7, 0));

    final JTextField field1 = new JTextField();
    field1.setPreferredSize(new Dimension(100,20));
    final JTextField field2 = new JTextField();
    field2.setPreferredSize(new Dimension(100,20));

    panel.add(field1, new GridConstraints(0,0,1,2,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_WANT_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(field2, new GridConstraints(0,2,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_WANT_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    final Dimension preferredSize = panel.getPreferredSize();
    assertEquals(207, preferredSize.width);

    panel.setSize(panel.getPreferredSize());
    panel.doLayout();

    if (SystemInfo.isMac) {
      assertEquals(new Rectangle(0,0,100,28), field1.getBounds());
      assertEquals(new Rectangle(107,0,100,28), field2.getBounds());
    } else {
      assertEquals(new Rectangle(0,0,100,20), field1.getBounds());
      assertEquals(new Rectangle(107,0,100,20), field2.getBounds());
    }
  }


  /**
   *
   * btn1   |    btn2  | btn4
   *  btn3 (span 2)    |
   */
  public void test3() {
    final JPanel panel = new JPanel(new GridLayoutManager(2,3, new Insets(0,0,0,0), 7, 0));

    final JButton btn1 = new JButton();
    btn1.setPreferredSize(new Dimension(100,20));
    final JButton btn2 = new JButton();
    btn2.setPreferredSize(new Dimension(100,20));
    final JButton btn3 = new JButton();
    btn3.setPreferredSize(new Dimension(100,20));
    final JButton btn4 = new JButton();
    btn4.setPreferredSize(new Dimension(100,20));

    panel.add(btn1, new GridConstraints(0,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn2, new GridConstraints(0,1,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn3, new GridConstraints(1,0,1,2,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn4, new GridConstraints(0,2,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    final Dimension preferredSize = panel.getPreferredSize();
    assertEquals(314, preferredSize.width);

    panel.setSize(panel.getPreferredSize());
    panel.doLayout();
  }

  /**
   *
   * btn1   |    btn2  | btn4
   *  btn3 (span 2)    |
   */
  public void test3a() {
    final JPanel panel = new JPanel(new GridLayoutManager(2,3, new Insets(0,0,0,0), 1000, 0));

    final JButton btn1 = new JButton();
    btn1.setPreferredSize(new Dimension(100,20));
    final JButton btn2 = new JButton();
    btn2.setPreferredSize(new Dimension(100,20));
    final JButton btn3 = new JButton();
    btn3.setPreferredSize(new Dimension(100,20));
    final JButton btn4 = new JButton();
    btn4.setPreferredSize(new Dimension(100,20));

    panel.add(btn1, new GridConstraints(0,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn2, new GridConstraints(0,1,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn3, new GridConstraints(1,0,1,2,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn4, new GridConstraints(0,2,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    final Dimension preferredSize = panel.getPreferredSize();
    assertEquals(2300, preferredSize.width);

    panel.setSize(panel.getPreferredSize());
    panel.doLayout();
  }

  /**
   *
   * btn1   |    btn2
   *  btn3 (span 2)
   */
  public void test3b() {
    final JPanel panel = new JPanel(new GridLayoutManager(2,3, new Insets(0,0,0,0), 1000, 0));

    final JButton btn1 = new JButton();
    btn1.setPreferredSize(new Dimension(100,20));
    final JButton btn2 = new JButton();
    btn2.setPreferredSize(new Dimension(100,20));
    final JButton btn3 = new JButton();
    btn3.setPreferredSize(new Dimension(100,20));

    panel.add(btn1, new GridConstraints(0,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn2, new GridConstraints(0,1,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn3, new GridConstraints(1,0,1,2,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    final Dimension preferredSize = panel.getPreferredSize();
    assertEquals(1200, preferredSize.width);

    panel.setSize(panel.getPreferredSize());
    panel.doLayout();
  }

  /**
   * btn1
   * -----
   * empty
   * ----
   * btn2
   */
  public void test4() {
    final JPanel panel = new JPanel(new GridLayoutManager(3,1, new Insets(0,0,0,0), 0, 7));

    final JButton btn1 = new JButton();
    btn1.setPreferredSize(new Dimension(100,20));
    final JButton btn2 = new JButton();
    btn2.setPreferredSize(new Dimension(100,20));

    panel.add(btn1, new GridConstraints(0,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn2, new GridConstraints(2,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    final Dimension preferredSize = panel.getPreferredSize();
    if (SystemInfo.isMac) {
      assertEquals(65, preferredSize.height);
    } else {
      assertEquals(47, preferredSize.height);
    }

    panel.setSize(panel.getPreferredSize());
    panel.doLayout();
  }

  /**
   * btn1
   * -----
   * spacer
   * ----
   * btn2
   */
  public void test5() {
    final JPanel panel = new JPanel(new GridLayoutManager(3,1, new Insets(0,0,0,0), 0, 7));

    final JButton btn1 = new JButton();
    btn1.setPreferredSize(new Dimension(100,20));
    final JButton btn2 = new JButton();
    btn2.setPreferredSize(new Dimension(100,20));

    panel.add(btn1, new GridConstraints(0,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(new Spacer(), new GridConstraints(1,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_FIXED, GridConstraints.SIZEPOLICY_WANT_GROW, null, null, null, 0));

    panel.add(btn2, new GridConstraints(2,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    final Dimension preferredSize = panel.getPreferredSize();
    if (SystemInfo.isMac) {
      assertEquals(65, preferredSize.height);
    } else {
      assertEquals(47, preferredSize.height);
    }

    panel.setSize(panel.getPreferredSize());
    panel.doLayout();
  }

  /**
   * btn1
   * ----- (very big gap)
   * btn2
   */
  public void test6() {
    final JPanel panel = new JPanel(new GridLayoutManager(2,1, new Insets(0,0,0,0), 0, 500));

    final JButton btn1 = new JButton();
    btn1.setPreferredSize(new Dimension(100,20));
    final JButton btn2 = new JButton();
    btn2.setPreferredSize(new Dimension(100,20));

    panel.add(btn1, new GridConstraints(0,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    panel.add(btn2, new GridConstraints(1,0,1,1,GridConstraints.ANCHOR_CENTER,GridConstraints.FILL_HORIZONTAL,
      GridConstraints.SIZEPOLICY_CAN_GROW, GridConstraints.SIZEPOLICY_FIXED, null, null, null, 0));

    final Dimension preferredSize = panel.getPreferredSize();
    if (SystemInfo.isMac) {
      assertEquals(558, preferredSize.height);
    } else {
      assertEquals(540, preferredSize.height);
    }

    panel.setSize(panel.getPreferredSize());
    panel.doLayout(); // should not crash
  }

}