Source Code Cross Referenced for PlainViewTest.java in  » Apache-Harmony-Java-SE » javax-package » javax » swing » text » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Apache Harmony Java SE » javax package » javax.swing.text 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *  Licensed to the Apache Software Foundation (ASF) under one or more
003:         *  contributor license agreements.  See the NOTICE file distributed with
004:         *  this work for additional information regarding copyright ownership.
005:         *  The ASF licenses this file to You under the Apache License, Version 2.0
006:         *  (the "License"); you may not use this file except in compliance with
007:         *  the License.  You may obtain a copy of the License at
008:         *
009:         *     http://www.apache.org/licenses/LICENSE-2.0
010:         *
011:         *  Unless required by applicable law or agreed to in writing, software
012:         *  distributed under the License is distributed on an "AS IS" BASIS,
013:         *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         *  See the License for the specific language governing permissions and
015:         *  limitations under the License.
016:         */
017:        /**
018:         * @author Alexey A. Ivanov
019:         * @version $Revision$
020:         */package javax.swing.text;
021:
022:        import java.awt.FontMetrics;
023:        import java.awt.Graphics;
024:        import java.awt.Rectangle;
025:        import java.awt.Shape;
026:        import javax.swing.JFrame;
027:        import javax.swing.JTextArea;
028:        import javax.swing.SwingTestCase;
029:
030:        /**
031:         * This class tests PlainView behavior.
032:         *
033:         * <p>This class is initialized with a "real" PlainView that was obtained from
034:         * JTextArea placed in JFrame.
035:         *
036:         */
037:        public class PlainViewTest extends SwingTestCase {
038:            private JTextArea area;
039:
040:            private Document doc;
041:
042:            private JFrame frame;
043:
044:            private Shape shape;
045:
046:            private PlainView view;
047:
048:            public void testDrawSelectedText() throws BadLocationException {
049:                area.setText("line1\nline2");
050:                Graphics g = view.getGraphics();
051:                FontMetrics m = view.metrics;
052:                g.setFont(m.getFont());
053:                assertEquals(m.charWidth('l'), view.drawSelectedText(g, 0, 0,
054:                        0, 1));
055:                assertEquals(m.stringWidth("line1"), view.drawSelectedText(g,
056:                        0, 0, 0, 5));
057:                assertEquals(m.stringWidth("line1\nli"), view.drawSelectedText(
058:                        g, 0, 0, 0, 8));
059:                try {
060:                    view.drawSelectedText(g, 0, 0, -1, 1);
061:                    fail("BadLocationException expected");
062:                } catch (BadLocationException e) {
063:                }
064:                try {
065:                    view.drawUnselectedText(g, 0, 0, 13, 13);
066:                    fail("BadLocationException expected");
067:                } catch (BadLocationException e) {
068:                }
069:                try {
070:                    view.drawSelectedText(g, 0, 0, 10, 2);
071:                    fail("BadLocationException expected");
072:                } catch (BadLocationException e) {
073:                }
074:            }
075:
076:            public void testDrawUnselectedText() throws BadLocationException {
077:                area.setText("line1\nline2");
078:                Graphics g = view.getGraphics();
079:                FontMetrics m = view.metrics;
080:                g.setFont(m.getFont());
081:                assertEquals(m.charWidth('l'), view.drawUnselectedText(g, 0, 0,
082:                        0, 1));
083:                assertEquals(5 + m.charWidth('l'), view.drawUnselectedText(g,
084:                        5, 0, 0, 1));
085:                assertEquals(m.stringWidth("line1"), view.drawUnselectedText(g,
086:                        0, 0, 0, 5));
087:                assertEquals(m.stringWidth("line1\nli"), view
088:                        .drawUnselectedText(g, 0, 0, 0, 8));
089:                try {
090:                    view.drawUnselectedText(g, 0, 0, -1, 1);
091:                    fail("BadLocationException expected");
092:                } catch (BadLocationException e) {
093:                }
094:                try {
095:                    view.drawUnselectedText(g, 0, 0, 13, 13);
096:                    fail("BadLocationException expected");
097:                } catch (BadLocationException e) {
098:                }
099:                try {
100:                    view.drawUnselectedText(g, 0, 0, 10, 2);
101:                    fail("BadLocationException expected");
102:                } catch (BadLocationException e) {
103:                }
104:            }
105:
106:            public void testGetPreferredSpan() {
107:                area.setText("1: 0\n2: 012345\n3:\n");
108:                assertEquals(view.metrics.stringWidth("2: 012345"), // longest line
109:                        view.getPreferredSpan(View.X_AXIS), 0.00001f);
110:                assertEquals(view.metrics.getHeight() * 4, view
111:                        .getPreferredSpan(View.Y_AXIS), 0.00001f);
112:                area.setText("\ttext\t1");
113:                float length = view.nextTabStop(0, 0);
114:                length += view.metrics.stringWidth("text");
115:                length = view.nextTabStop(length, 0);
116:                length += view.metrics.stringWidth("1");
117:                assertEquals(length, view.getPreferredSpan(View.X_AXIS),
118:                        0.00001f);
119:            }
120:
121:            /**
122:             * Generic tests of <code>modelToView(int, Shape, Position.Bias)</code>.
123:             */
124:            public void testModelToViewintShapeBias01()
125:                    throws BadLocationException {
126:                area.setText("1: 0\n2: 012345\n3:\n");
127:                //            01234 5678901234 567
128:                assertTrue(view.modelToView(0, shape, Position.Bias.Backward) instanceof  Rectangle);
129:                assertEquals(new Rectangle(1, view.metrics.getHeight()), view
130:                        .modelToView(0, shape, Position.Bias.Forward));
131:                assertEquals(new Rectangle(1, view.metrics.getHeight()), view
132:                        .modelToView(0, shape, Position.Bias.Backward));
133:                assertEquals(new Rectangle(view.metrics.charWidth('1'), 0, 1,
134:                        view.metrics.getHeight()), view.modelToView(1, shape,
135:                        Position.Bias.Forward));
136:                assertEquals(new Rectangle(view.metrics.charWidth('1'), 0, 1,
137:                        view.metrics.getHeight()), view.modelToView(1, shape,
138:                        Position.Bias.Backward));
139:                assertEquals(new Rectangle(view.metrics.stringWidth("2: 012"),
140:                        view.metrics.getHeight(), 1, view.metrics.getHeight()),
141:                        view.modelToView(11, shape, Position.Bias.Forward));
142:                try {
143:                    view.modelToView(-1, shape, Position.Bias.Forward);
144:                    fail("BadLocationException is expected");
145:                } catch (BadLocationException e) {
146:                }
147:                assertEquals(new Rectangle(view.metrics.charWidth('\n')/*0*/,
148:                        view.metrics.getHeight() * 3, 1, view.metrics
149:                                .getHeight()), view.modelToView(
150:                        doc.getLength() + 1, shape, Position.Bias.Forward));
151:                try {
152:                    view.modelToView(doc.getLength() + 2, shape,
153:                            Position.Bias.Forward);
154:                    fail("BadLocationException is expected");
155:                } catch (BadLocationException e) {
156:                }
157:                //        try {
158:                view.modelToView(0, shape, null);
159:                // isn't thrown
160:                //fail("IllegalArgumentException must be thrown");
161:                //        } catch (IllegalArgumentException e) { }
162:                doc.insertString(1, "\t", null);
163:                assertEquals(new Rectangle(view.metrics.charWidth('1'), 0, 1,
164:                        view.metrics.getHeight()), view.modelToView(1, shape,
165:                        Position.Bias.Forward));
166:                assertEquals(new Rectangle((int) view.nextTabStop(view.metrics
167:                        .charWidth('1'), 0), 0, 1, view.metrics.getHeight()),
168:                        view.modelToView(2, shape, Position.Bias.Forward));
169:                assertEquals(new Rectangle((int) view.nextTabStop(view.metrics
170:                        .charWidth('1'), 0)
171:                        + view.metrics.charWidth(':'), 0, 1, view.metrics
172:                        .getHeight()), view.modelToView(3, shape,
173:                        Position.Bias.Forward));
174:            }
175:
176:            /**
177:             * Tests <code>modelToView(int, Shape, Position.Bias)</code> when
178:             * <code>shape.getBounds().x != 0</code> and/or
179:             * <code>shape.getBounds().y != 0</code>.
180:             */
181:            public void testModelToViewintShapeBias02()
182:                    throws BadLocationException {
183:                area.setText("1: 0\n2: 012345\n3:\n");
184:                ((Rectangle) shape).setLocation(7, 10);
185:                assertFalse(((Rectangle) shape).x == 0);
186:                assertEquals(new Rectangle(((Rectangle) shape).x,
187:                        ((Rectangle) shape).y, 1, view.metrics.getHeight()),
188:                        view.modelToView(0, shape, Position.Bias.Forward));
189:            }
190:
191:            /**
192:             * Tests <code>modelToView(int, Shape, Position.Bias)</code>
193:             * with zero-length document.
194:             */
195:            public void testModelToViewintShapeBias03()
196:                    throws BadLocationException {
197:                area.setText("");
198:                assertEquals(0, view.getDocument().getLength());
199:                assertEquals(new Rectangle(1, view.metrics.getHeight()), view
200:                        .modelToView(0, shape, Position.Bias.Forward));
201:                assertEquals(new Rectangle(1, view.metrics.getHeight()), view
202:                        .modelToView(1, shape, Position.Bias.Forward));
203:                try {
204:                    view.modelToView(-1, shape, Position.Bias.Forward);
205:                    fail("BadLocationException is expected");
206:                } catch (BadLocationException e) {
207:                }
208:                try {
209:                    view.modelToView(2, shape, Position.Bias.Forward);
210:                    fail("BadLocationException is expected");
211:                } catch (BadLocationException e) {
212:                }
213:            }
214:
215:            /**
216:             * Tests nextTabStop method with default tab size of 8.
217:             */
218:            public void testNextTabStop01() {
219:                float tabPos = view.getTabSize() * view.metrics.charWidth('m');
220:                assertEquals(8, view.getTabSize());
221:                assertEquals(tabPos, view.nextTabStop(0.0f, 0), 0.00001f);
222:                assertEquals(tabPos, view.nextTabStop(10.0f, 0), 0.00001f);
223:                assertEquals(tabPos, view.nextTabStop(tabPos - 1, 0), 0.00001f);
224:                assertEquals(tabPos * 2, view.nextTabStop(tabPos, 0), 0.00001f);
225:                // Setting tab size to 4 has no effect on already initialized view
226:                doc.putProperty(PlainDocument.tabSizeAttribute, new Integer(4));
227:                assertEquals(4, view.getTabSize());
228:                // The change has no effect
229:                assertEquals(tabPos, view.nextTabStop(0.0f, 0), 0.00001f);
230:                // But after metrics have been updated...
231:                view.updateMetrics();
232:                if (isHarmony()) {
233:                    // Our implemetation updates tabSize in updateMetrics
234:                    tabPos = view.getTabSize() * view.metrics.charWidth('m');
235:                }
236:                assertEquals(tabPos, view.nextTabStop(0.0f, 0), 0.00001f);
237:                assertEquals(tabPos * 2, view.nextTabStop(tabPos, 0), 0.00001f);
238:            }
239:
240:            /*
241:             * int viewToModel(float, float, Shape, Position.Bias[])
242:             */
243:            public void testViewToModelfloatfloatShapeBiasArray()
244:                    throws BadLocationException {
245:                area.setText("1: 0\n2: 012345\n3:\n");
246:                //            01234 5678901234 567
247:                int h = view.metrics.getHeight();
248:                int w = view.metrics.charWidth('1');
249:                Position.Bias[] bias = new Position.Bias[1];
250:                assertNull(bias[0]);
251:                assertEquals(0, view.viewToModel(0f, 0f, shape, bias));
252:                assertSame(Position.Bias.Forward, bias[0]);
253:                bias[0] = null;
254:                assertEquals(0, view.viewToModel(w / 4f, h / 4f, shape, bias));
255:                assertSame(Position.Bias.Forward, bias[0]);
256:                bias[0] = null;
257:                assertEquals(1, view.viewToModel(w - 1f, h / 2f, shape, bias));
258:                assertSame(Position.Bias.Forward, bias[0]);
259:                bias[0] = null;
260:                assertEquals(1, view.viewToModel(w - w / 4f, h / 2f, shape,
261:                        bias));
262:                assertSame(Position.Bias.Forward, bias[0]);
263:                bias[0] = null;
264:                w = view.metrics.charWidth('2');
265:                // Negative coordinates
266:                assertEquals(0, view.viewToModel(-1f, h - 0.1f, shape, bias));
267:                assertSame(Position.Bias.Forward, bias[0]);
268:                bias[0] = null;
269:                assertEquals(5, view.viewToModel(-1f, h, shape, bias));
270:                assertSame(Position.Bias.Forward, bias[0]);
271:                bias[0] = null;
272:                assertEquals(5, view.viewToModel(-1f, h + 0.1f, shape, bias));
273:                assertSame(Position.Bias.Forward, bias[0]);
274:                bias[0] = null;
275:                assertEquals(0, view.viewToModel(1f, -1f, shape, bias));
276:                assertSame(Position.Bias.Forward, bias[0]);
277:                bias[0] = null;
278:                assertEquals(0, view.viewToModel(w + 1f, -1f, shape, bias));
279:                assertSame(Position.Bias.Forward, bias[0]);
280:                bias[0] = null;
281:                // Past last character of line 1
282:                assertEquals(4, view.viewToModel(view.metrics
283:                        .stringWidth("1: 0") + 1f, h / 2, shape, bias));
284:                assertEquals(4, view.viewToModel(view.metrics
285:                        .stringWidth("1: 0") + 1f, h - 0.1f, shape, bias));
286:                assertSame(Position.Bias.Forward, bias[0]);
287:                bias[0] = null;
288:                assertEquals(9, view.viewToModel(view.metrics
289:                        .stringWidth("1: 0"), h, shape, bias));
290:                assertSame(Position.Bias.Forward, bias[0]);
291:                bias[0] = null;
292:                assertEquals(9, view.viewToModel(view.metrics
293:                        .stringWidth("1: 0"), h + 0.1f, shape, bias));
294:                assertSame(Position.Bias.Forward, bias[0]);
295:                bias[0] = null;
296:                // Below last line
297:                h = (int) view.getPreferredSpan(View.Y_AXIS);
298:                int pos = doc.getLength();
299:                assertEquals(pos, view.viewToModel(0f, h - 0.1f, shape, bias));
300:                assertSame(Position.Bias.Forward, bias[0]);
301:                bias[0] = null;
302:                assertEquals(pos, view.viewToModel(0f, h, shape, bias));
303:                assertSame(Position.Bias.Forward, bias[0]);
304:                bias[0] = null;
305:                assertEquals(pos, view.viewToModel(0f, h + 0.1f, shape, bias));
306:                assertSame(Position.Bias.Forward, bias[0]);
307:                bias[0] = null;
308:                // Test with tab
309:                w = view.metrics.charWidth('1');
310:                doc.insertString(1, "\t", null);
311:                int tab = (int) view.nextTabStop(w, 0);
312:                int tabSize = tab - w;
313:                assertEquals(1, view.viewToModel(w + tabSize / 2f - 0.5f, 0f,
314:                        shape, bias));
315:                assertEquals(2, view.viewToModel(w + tabSize / 2f + 0.5f, 0f,
316:                        shape, bias));
317:                assertEquals(2, view.viewToModel(tab - 1f, 0f, shape, bias));
318:                assertEquals(3, view.viewToModel(tab
319:                        + view.metrics.charWidth(':') - 1f, 0, shape, bias));
320:            }
321:
322:            /**
323:             * Creates JFrame (<code>frame</code>), puts JTextArea (<code>area</code>)
324:             * into it and initializes <code>doc</code>, <code>root</code>,
325:             * <code>view</code>, and <code>shape</code> using JTextArea methods.
326:             */
327:            @Override
328:            protected void setUp() throws Exception {
329:                super .setUp();
330:                frame = new JFrame("PlainView Test");
331:                area = new JTextArea(" ");
332:                frame.getContentPane().add(area);
333:                frame.setSize(100, 150);
334:                frame.pack();
335:                doc = area.getDocument();
336:                view = (PlainView) area.getUI().getRootView(area).getView(0);
337:                shape = area.getVisibleRect();
338:            }
339:
340:            /*
341:             * @see TestCase#tearDown()
342:             */
343:            @Override
344:            protected void tearDown() throws Exception {
345:                super .tearDown();
346:                frame.dispose();
347:            }
348:            // Painting methods are not tested
349:            /*
350:             public void testDrawLine() {
351:             }
352:
353:             public void testPaint() {
354:             }
355:             */
356:        }
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