1 /*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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23
24 /**
25 @test
26 @summary This tests differences between a font derived by an 0.75, 0.75
27 @summary affine transform of a 16 point font and a simple 12 point font.
28 @summary Basically, there should be no differences...
29 @summary com.apple.junit.java.awt.Font;
30 @library ../../regtesthelpers
31 @build VisibilityValidator
32 @build Waypoint
33 @run junit FontTransform
34 */
35
36 import junit.framework.*;
37
38 import javax.swing.*;
39 import java.awt.*;
40 import java.awt.font.FontRenderContext;
41 import java.awt.font.LineMetrics;
42 import java.awt.geom.AffineTransform;
43 import java.awt.geom.Rectangle2D;
44
45 import test.java.awt.regtesthelpers.VisibilityValidator;
46
47 public class FontTransform extends TestCase {
48
49 static final int PULSE = 5;
50 static final int HEATBEAT = 250;
51
52 static String[] getty = {
53 "Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.\n\n",
54 "Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battle-field of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this.\n\n",
55 "But, in a larger sense, we can not dedicate -- we can not consecrate -- we can not hallow -- this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us -- that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion -- that we here highly resolve that these dead shall not have died in vain -- that this nation, under God, shall have a new birth of freedom -- and that government of the people, by the people, for the people, shall not perish from the earth.\n",
56 "\nThis tests differences between a font derived by an 0.75, 0.75 affine transform of a 16 point font and a simple 12 point font.",
57 "Basically, there should be no differences...\n"
58
59 };
60
61 private AffineTransform a;
62 private Font base = null;
63 private Font derived = null;
64 private Font similar = null;
65
66
67 // debugging
68 static public void dump(LineMetrics lm) {
69 System.out.println( "getAscent " + lm.getAscent() );
70 System.out.println( "getHeight " + lm.getHeight() );
71 System.out.println( "getNumChars " + lm.getNumChars() );
72 System.out.println( "getBaselineIndex " + lm.getBaselineIndex() );
73 System.out.println( "getDescent " + lm.getDescent() );
74 System.out.println( "getLeading " + lm.getLeading() );
75 System.out.println( "getStrikethroughOffset " + lm.getStrikethroughOffset() );
76 System.out.println( "getStrikethroughThickness " + lm.getStrikethroughThickness() );
77 System.out.println( "getUnderlineOffset " + lm.getUnderlineOffset() );
78 System.out.println( "getUnderlineThickness " + lm.getUnderlineThickness() );
79 }
80
81 protected void setUp() {
82 base = new Font( "Serif", Font.PLAIN, 16 );
83 assertNotNull( base );
84
85 a = AffineTransform.getScaleInstance(0.75,0.75);
86 assertNotNull( a );
87 derived = base.deriveFont(a);
88 assertNotNull( derived );
89
90 similar = new Font( "Serif", Font.PLAIN, 12 );
91 assertNotNull( similar );
92
93 }
94
95 public void testSimpleDerivedFont()
96 {
97 assertEquals( "Unexpected base size", 16, base.getSize() );
98 assertFalse( "base isTransformed() should be false", base.isTransformed() );
99 derived = base.deriveFont(a);
100 assertNotNull( derived );
101 assertEquals( "Unexpected derived size", 16, derived.getSize() );
102 assertTrue( "derived isTransformed() should be true", derived.isTransformed() );
103 }
104
105 public void testDisplayDerivedFont() throws Exception
106 {
107 final JTextArea text = new JTextArea();
108 assertNotNull( text );
109
110 text.setLineWrap(true);
111 text.setWrapStyleWord(true);
112 text.setFont(derived);
113 JScrollPane scroll = new JScrollPane(text);
114
115 for (int i = 0; i< getty.length; i++) {
116 text.append(getty[i]);
117 }
118
119 JFrame f = new JFrame();
120 assertNotNull( f );
121
122 try {
123 f.getContentPane().add(scroll, java.awt.BorderLayout.CENTER);
124 f.setSize(600,600);
125
126 VisibilityValidator.setVisibleAndConfirm(f);
127
128 text.setFont( derived );
129 for( int i=0; i < PULSE; i++) {
130 SwingUtilities.invokeAndWait(new Runnable() {
131 public void run() {
132 text.selectAll();
133 }
134 });
135 Thread.sleep(HEATBEAT);
136 SwingUtilities.invokeAndWait(new Runnable() {
137 public void run() {
138 text.select(0,1);
139 }
140 });
141 Thread.sleep(HEATBEAT);
142 }
143
144 text.setFont( similar );
145 for( int i=0; i < PULSE; i++) {
146 SwingUtilities.invokeAndWait(new Runnable() {
147 public void run() {
148 text.selectAll();
149 }
150 });
151 Thread.sleep(HEATBEAT);
152 SwingUtilities.invokeAndWait(new Runnable() {
153 public void run() {
154 text.select(0,1);
155 }
156 });
157 Thread.sleep(HEATBEAT);
158 }
159
160 Graphics2D g = (Graphics2D) text.getGraphics();
161 assertNotNull( g );
162
163 FontRenderContext frc = g.getFontRenderContext();
164 assertNotNull( frc );
165
166 LineMetrics derived_lm = derived.getLineMetrics( getty[2], 0, getty[2].length(), frc);
167 LineMetrics similar_lm = similar.getLineMetrics( getty[2], 0, getty[2].length(), frc);
168
169
170 String descr = "12pt derived font and 12pt simple font should have similar ";
171 double b_val, s_val, diff;
172
173
174 //
175 // Check a few basic line metrics
176 //
177
178 b_val = derived_lm.getAscent();
179 s_val = similar_lm.getAscent();
180 diff = Math.abs(b_val - s_val);
181 assertTrue(descr + "ascent", diff < b_val/100);
182
183 b_val = derived_lm.getHeight();
184 s_val = similar_lm.getHeight();
185 diff = Math.abs(b_val - s_val);
186 assertTrue(descr + "height", diff < b_val/100);
187
188 b_val = derived_lm.getDescent();
189 s_val = similar_lm.getDescent();
190 diff = Math.abs(b_val - s_val);
191 assertTrue(descr + "descent", diff < b_val/100);
192
193
194 //
195 // Check string bounds
196 //
197 Rectangle2D derived_b = derived.getStringBounds( getty[2], frc );
198 Rectangle2D similar_b = similar.getStringBounds( getty[2], frc );
199
200
201 b_val = derived_b.getX();
202 s_val = similar_b.getX();
203 diff = Math.abs(b_val - s_val);
204 assertTrue(descr + "bounds X coord", diff < 0.01);
205
206 b_val = derived_b.getY();
207 s_val = similar_b.getY();
208 diff = Math.abs(b_val - s_val);
209 assertTrue(descr + "bounds Y coord", diff < 0.01);
210
211 b_val = derived_b.getWidth();
212 s_val = similar_b.getWidth();
213 diff = Math.abs(b_val - s_val);
214 assertTrue(descr + "bounds width", diff < b_val/100);
215
216 b_val = derived_b.getHeight();
217 s_val = similar_b.getHeight();
218 diff = Math.abs(b_val - s_val);
219 assertTrue(descr + "bounds width", diff < b_val/100);
220 }
221 finally {
222 f.dispose();
223 }
224
225 }
226
227 public static Test suite() {
228 return new TestSuite(FontTransform.class);
229 }
230
231 public static void main (String[] args) throws RuntimeException {
232 TestResult tr = junit.textui.TestRunner.run(suite());
233 if((tr.errorCount() != 0) || (tr.failureCount() != 0)) {
234 throw new RuntimeException("### Unexpected JUnit errors or failures.");
235 }
236 }
237 }
238