| /* |
| * 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.*; |
| import java.util.Arrays; |
| |
| public final class EmptyPanelTest extends TestCase { |
| |
| public void test1() { |
| final GridLayoutManager layoutManager = new GridLayoutManager(2, 3, new Insets(0, 0, 0, 0), 0, 0); |
| final JPanel panel = new JPanel(layoutManager); |
| |
| assertEquals(0, panel.getPreferredSize().width); |
| assertEquals(0, panel.getPreferredSize().height); |
| |
| panel.setSize(90, 200); |
| panel.doLayout(); // should not crash with exception |
| |
| assertTrue(Arrays.equals(new int[]{0, 30, 60}, layoutManager.getXs())); |
| assertTrue(Arrays.equals(new int[]{30, 30, 30}, layoutManager.getWidths())); |
| |
| assertTrue(Arrays.equals(new int[]{0, 100}, layoutManager.getYs())); |
| assertTrue(Arrays.equals(new int[]{100, 100}, layoutManager.getHeights())); |
| |
| // add component |
| final JButton button = new JButton(); |
| button.setPreferredSize(new Dimension(100, 20)); |
| panel.add(button, |
| new GridConstraints(0, 1, 1, 2, GridConstraints.ANCHOR_CENTER, GridConstraints.FILL_BOTH, GridConstraints.SIZEPOLICY_CAN_GROW, |
| GridConstraints.SIZEPOLICY_FIXED, null, null, null, |
| 0)); |
| |
| // wisdom |
| layoutManager.invalidateLayout(panel); |
| |
| if (SystemInfo.isMac) { |
| assertEquals(new Dimension(100, 29), panel.getPreferredSize()); |
| panel.setSize(panel.getPreferredSize()); |
| panel.doLayout(); |
| assertEquals(100, button.getWidth()); |
| assertEquals(29, panel.getHeight()); |
| |
| assertTrue(Arrays.equals(new int[]{0, 29}, layoutManager.getYs())); |
| assertTrue(Arrays.equals(new int[]{29, 0}, layoutManager.getHeights())); |
| } |
| else { |
| assertEquals(new Dimension(100, 20), panel.getPreferredSize()); |
| panel.setSize(panel.getPreferredSize()); |
| panel.doLayout(); |
| assertEquals(100, button.getWidth()); |
| assertEquals(20, panel.getHeight()); |
| |
| assertTrue(Arrays.equals(new int[]{0, 20}, layoutManager.getYs())); |
| assertTrue(Arrays.equals(new int[]{20, 0}, layoutManager.getHeights())); |
| } |
| |
| assertTrue(Arrays.equals(new int[]{0, 0, 100}, layoutManager.getXs())); |
| assertTrue(Arrays.equals(new int[]{0, 100, 0}, layoutManager.getWidths())); |
| } |
| } |