1 /*
2 * Copyright (c) 2013, 2015, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package test.javafx.scene;
27
28 import com.sun.javafx.scene.shape.RectangleHelper;
29 import javafx.geometry.BoundingBox;
30 import javafx.geometry.Bounds;
31 import javafx.scene.Node;
32 import javafx.scene.shape.Rectangle;
33 import org.junit.Test;
34 import static org.junit.Assert.assertEquals;
35
36 /**
37 * Tests for the layout size methods on Node. In particular, we need to ensure that
38 * the min/max width/height are both based on pref by default. Also that these methods
39 * never (ever) return NaN or negative values.
40 */
41 public class Node_layoutSizes_Test {
42 /**
43 * The standard case, where the layout bounds is automatically determined by the bounds of
44 * the rectangle. I've offset the rectangle x/y to make sure we're using the width and
45 * not the maxX for this calculation.
46 */
47 @Test public void Node_prefWidth_BasedOnLayoutBounds() {
48 Rectangle node = new Rectangle(10, 10, 100, 100);
49 assertEquals(100, node.prefWidth(-1), 0);
50 assertEquals(100, node.prefWidth(5), 0);
51 }
52
53 /**
54 * A specialized computeLayoutBounds implementation, to make sure it is the
55 * layout bounds from which we're gathering this information.
56 */
57 @Test public void Node_prefWidth_BasedOnLayoutBounds2() {
58 SpecialRect node = new SpecialRect(10, 10, 100, 100);
59 node.setTestBB(0, 0, 50, 50);
60 assertEquals(50, node.prefWidth(-1), 0);
61 assertEquals(50, node.prefWidth(5), 0);
62 }
63
64 /**
65 * If the layout bounds has a NaN, it shouldn't leak out through node.prefWidth
66 */
67 @Test public void Node_prefWidth_BasedOnLayoutBounds_CleansUpAfterBadBounds() {
68 SpecialRect node = new SpecialRect(10, 10, 100, 100);
69 node.setTestBB(0, 0, Double.NaN, 50);
70 assertEquals(0, node.prefWidth(-1), 0);
71 assertEquals(0, node.prefWidth(5), 0);
72 }
73
74 /**
75 * If the layout bounds has a negative value, it shouldn't leak out through node.prefWidth
76 */
77 @Test public void Node_prefWidth_BasedOnLayoutBounds_CleansUpAfterBadBounds2() {
78 SpecialRect node = new SpecialRect(10, 10, 100, 100);
79 node.setTestBB(0, 0, -10, 50);
80 assertEquals(0, node.prefWidth(-1), 0);
81 assertEquals(0, node.prefWidth(5), 0);
82 }
83
84 /**
85 * The standard case, where the layout bounds is automatically determined by the bounds of
86 * the rectangle. I've offset the rectangle x/y to make sure we're using the height and
87 * not the maxY for this calculation.
88 */
89 @Test public void Node_prefHeight_BasedOnLayoutBounds() {
90 Rectangle node = new Rectangle(10, 10, 100, 100);
91 assertEquals(100, node.prefHeight(-1), 0);
92 assertEquals(100, node.prefHeight(5), 0);
93 }
94
95 /**
96 * A specialized computeLayoutBounds implementation, to make sure it is the
97 * layout bounds from which we're gathering this information.
98 */
99 @Test public void Node_prefHeight_BasedOnLayoutBounds2() {
100 SpecialRect node = new SpecialRect(10, 10, 100, 100);
101 node.setTestBB(0, 0, 50, 50);
102 assertEquals(50, node.prefHeight(-1), 0);
103 assertEquals(50, node.prefHeight(5), 0);
104 }
105
106 /**
107 * If the layout bounds has a NaN, it shouldn't leak out through node.prefHeight
108 */
109 @Test public void Node_prefHeight_BasedOnLayoutBounds_CleansUpAfterBadBounds() {
110 SpecialRect node = new SpecialRect(10, 10, 100, 100);
111 node.setTestBB(0, 0, 50, Double.NaN);
112 assertEquals(0, node.prefHeight(-1), 0);
113 assertEquals(0, node.prefHeight(5), 0);
114 }
115
116 /**
117 * If the layout bounds has a negative value, it shouldn't leak out through node.prefHeight
118 */
119 @Test public void Node_prefHeight_BasedOnLayoutBounds_CleansUpAfterBadBounds2() {
120 SpecialRect node = new SpecialRect(10, 10, 100, 100);
121 node.setTestBB(0, 0, 50, -10);
122 assertEquals(0, node.prefHeight(-1), 0);
123 assertEquals(0, node.prefHeight(5), 0);
124 }
125
126 /**
127 * Make sure minWidth is based on pref width. By overriding prefWidth to
128 * be something nonsensical, we know in the test that the pref width is being used
129 * and not the layout bounds width.
130 */
131 @Test public void Node_minWidth_SameAsPrefWidth() {
132 Rectangle node = new Rectangle(10, 10, 100, 100) {
133 @Override public double prefWidth(double height) {
134 return 500;
135 }
136 };
137
138 assertEquals(500, node.minWidth(-1), 0);
139 assertEquals(500, node.minWidth(5), 0);
140 }
141
142 /**
143 * Make sure minHeight is based on pref height. By overriding prefHeight to
144 * be something nonsensical, we know in the test that the pref height is being used
145 * and not the layout bounds height.
146 */
147 @Test public void Node_minHeight_SameAsPrefHeight() {
148 Rectangle node = new Rectangle(10, 10, 100, 100) {
149 @Override public double prefHeight(double height) {
150 return 500;
151 }
152 };
153
154 assertEquals(500, node.minHeight(-1), 0);
155 assertEquals(500, node.minHeight(5), 0);
156 }
157
158 /**
159 * Make sure maxWidth is based on pref width. By overriding prefWidth to
160 * be something nonsensical, we know in the test that the pref width is being used
161 * and not the layout bounds width.
162 */
163 @Test public void Node_maxWidth_SameAsPrefWidth() {
164 Rectangle node = new Rectangle(10, 10, 100, 100) {
165 @Override public double prefWidth(double height) {
166 return 500;
167 }
168 };
169
170 assertEquals(500, node.maxWidth(-1), 0);
171 assertEquals(500, node.maxWidth(5), 0);
172 }
173
174 /**
175 * Make sure maxHeight is based on pref height. By overriding prefHeight to
176 * be something nonsensical, we know in the test that the pref height is being used
177 * and not the layout bounds height.
178 */
179 @Test public void Node_maxHeight_SameAsPrefHeight() {
180 Rectangle node = new Rectangle(10, 10, 100, 100) {
181 @Override public double prefHeight(double height) {
182 return 500;
183 }
184 };
185
186 assertEquals(500, node.maxHeight(-1), 0);
187 assertEquals(500, node.maxHeight(5), 0);
188 }
189
190 //
191 // A specialized rect that return a user hardcoded computeLayoutBounds
192 //
193 protected class SpecialRect extends Rectangle {
194
195 BoundingBox testBB;
196
197 {
198 // To initialize the class helper at the begining each constructor of this class
199 SpecialRectHelper.initHelper(this);
200 }
201
202 public SpecialRect(double x, double y, double width, double height) {
203 }
204
205 void setTestBB(double x, double y, double width, double height) {
206 testBB = new BoundingBox(x, y, width, height);
207 }
208
209 private Bounds doComputeLayoutBounds() {
210 return testBB;
211 }
212 }
213
214 static final class SpecialRectHelper extends RectangleHelper {
215
216 private static final SpecialRectHelper theInstance;
217
218 static {
219 theInstance = new SpecialRectHelper();
220 }
221
222 private static SpecialRectHelper getInstance() {
223 return theInstance;
224 }
225
226 public static void initHelper(SpecialRect cssBridge) {
227 setHelper(cssBridge, getInstance());
228 }
229
230 @Override
231 protected Bounds computeLayoutBoundsImpl(Node node) {
232 return ((SpecialRect) node).doComputeLayoutBounds();
233 }
234 }
235
236 }