|
1
11
12 package org.eclipse.birt.chart.examples.api.data;
13
14 import java.awt.BorderLayout  ;
15 import java.awt.Color ;
16 import java.awt.Container ;
17 import java.awt.Dimension ;
18 import java.awt.FlowLayout ;
19 import java.awt.Font ;
20 import java.awt.FontMetrics ;
21 import java.awt.Graphics ;
22 import java.awt.Graphics2D ;
23 import java.awt.GridLayout ;
24 import java.awt.Rectangle ;
25 import java.awt.Toolkit ;
26 import java.awt.event.ActionEvent ;
27 import java.awt.event.ActionListener ;
28 import java.awt.event.ComponentEvent ;
29 import java.awt.event.ComponentListener ;
30 import java.util.HashMap ;
31 import java.util.Map ;
32
33 import javax.swing.JButton ;
34 import javax.swing.JComboBox ;
35 import javax.swing.JFrame ;
36 import javax.swing.JLabel ;
37 import javax.swing.JPanel ;
38 import org.eclipse.birt.chart.device.IDeviceRenderer;
39 import org.eclipse.birt.chart.device.IUpdateNotifier;
40 import org.eclipse.birt.chart.exception.ChartException;
41 import org.eclipse.birt.chart.factory.GeneratedChartState;
42 import org.eclipse.birt.chart.factory.Generator;
43 import org.eclipse.birt.chart.model.Chart;
44 import org.eclipse.birt.chart.model.attribute.Bounds;
45 import org.eclipse.birt.chart.model.attribute.impl.BoundsImpl;
46 import org.eclipse.birt.chart.util.PluginSettings;
47 import org.eclipse.birt.core.exception.BirtException;
48
49
53 public final class DataChartsViewer extends JPanel implements
54 IUpdateNotifier,
55 ComponentListener
56 {
57
58 private static final long serialVersionUID = 1L;
59
60 private boolean bNeedsGeneration = true;
61
62 private GeneratedChartState gcs = null;
63
64 private Chart cm = null;
65
66 private IDeviceRenderer idr = null;
67
68 private Map contextMap;
69
70
76 public static void main( String [] args )
77 {
78 DataChartsViewer dcv = new DataChartsViewer( );
79
80 JFrame jf = new JFrame ( );
81 jf.setDefaultCloseOperation( JFrame.DISPOSE_ON_CLOSE );
82 jf.addComponentListener( dcv );
83
84 Container co = jf.getContentPane( );
85 co.setLayout( new BorderLayout ( ) );
86 co.add( dcv, BorderLayout.CENTER );
87
88 Dimension dScreen = Toolkit.getDefaultToolkit( ).getScreenSize( );
89 Dimension dApp = new Dimension ( 600, 400 );
90 jf.setSize( dApp );
91 jf.setLocation( ( dScreen.width - dApp.width ) / 2,
92 ( dScreen.height - dApp.height ) / 2 );
93
94 jf.setTitle( dcv.getClass( ).getName( ) + " [device=" + dcv.idr.getClass( ).getName( ) + "]" );
97 ControlPanel cp = dcv.new ControlPanel( dcv );
98 co.add( cp, BorderLayout.SOUTH );
99
100 jf.setVisible( true );
101 }
102
103
106 DataChartsViewer( )
107 {
108 contextMap = new HashMap ();
109
110 final PluginSettings ps = PluginSettings.instance( );
111 try
112 {
113 idr = ps.getDevice( "dv.SWING" ); }
115 catch ( ChartException ex )
116 {
117 ex.printStackTrace( );
118 }
119 cm = DataCharts.createMinSliceChart( );
120 }
121
122
127 public void regenerateChart( )
128 {
129 bNeedsGeneration = true;
130 repaint( );
131 }
132
133
138 public void repaintChart( )
139 {
140 repaint( );
141 }
142
143
148 public Object peerInstance( )
149 {
150 return this;
151 }
152
153
158 public Chart getDesignTimeModel( )
159 {
160 return cm;
161 }
162
163
168 public Chart getRunTimeModel( )
169 {
170 return gcs.getChartModel( );
171 }
172
173
178 public Object getContext( Object key )
179 {
180 return contextMap.get( key );
181 }
182
183
189 public Object putContext( Object key, Object value )
190 {
191 return contextMap.put( key, value );
192 }
193
194
199 public Object removeContext( Object key )
200 {
201 return contextMap.remove( key );
202 }
203
204 public void paint( Graphics g )
205 {
206 super.paint( g );
207
208 Graphics2D g2d = (Graphics2D ) g;
209 idr.setProperty( IDeviceRenderer.GRAPHICS_CONTEXT, g2d );
210 idr.setProperty( IDeviceRenderer.UPDATE_NOTIFIER, this );
211
212 Dimension d = getSize( );
213 Bounds bo = BoundsImpl.create( 0, 0, d.width, d.height );
214 bo.scale( 72d / idr.getDisplayServer( ).getDpiResolution( ) );
215
216 Generator gr = Generator.instance( );
217
218 if ( bNeedsGeneration )
220 {
221 bNeedsGeneration = false;
222 try
223 {
224 gcs = gr.build( idr.getDisplayServer( ),
225 cm,
226 bo,
227 null,
228 null,
229 null );
230 }
231 catch ( ChartException ex )
232 {
233 showException( g2d, ex );
234 }
235 }
236
237 try
239 {
240 gr.render( idr, gcs );
241 }
242 catch ( ChartException ex )
243 {
244 showException( g2d, ex );
245 }
246 }
247
248
254 private final void showException( Graphics2D g2d, Exception ex )
255 {
256 String sWrappedException = ex.getClass( ).getName( );
257 Throwable th = ex;
258 while ( ex.getCause( ) != null )
259 {
260 ex = (Exception ) ex.getCause( );
261 }
262 String sException = ex.getClass( ).getName( );
263 if ( sWrappedException.equals( sException ) )
264 {
265 sWrappedException = null;
266 }
267
268 String sMessage = null;
269 if ( th instanceof BirtException )
270 {
271 sMessage = ( (BirtException) th ).getLocalizedMessage( );
272 }
273 else
274 {
275 sMessage = ex.getMessage( );
276 }
277
278 if ( sMessage == null )
279 {
280 sMessage = "<null>"; }
282
283 StackTraceElement [] stea = ex.getStackTrace( );
284 Dimension d = getSize( );
285
286 Font fo = new Font ( "Monospaced", Font.BOLD, 14 ); g2d.setFont( fo );
288 FontMetrics fm = g2d.getFontMetrics( );
289 g2d.setColor( Color.WHITE );
290 g2d.fillRect( 20, 20, d.width - 40, d.height - 40 );
291 g2d.setColor( Color.BLACK );
292 g2d.drawRect( 20, 20, d.width - 40, d.height - 40 );
293 g2d.setClip( 20, 20, d.width - 40, d.height - 40 );
294 int x = 25, y = 20 + fm.getHeight( );
295 g2d.drawString( "Exception:", x, y ); x += fm.stringWidth( "Exception:" ) + 5; g2d.setColor( Color.RED );
298 g2d.drawString( sException, x, y );
299 x = 25;
300 y += fm.getHeight( );
301 if ( sWrappedException != null )
302 {
303 g2d.setColor( Color.BLACK );
304 g2d.drawString( "Wrapped In:", x, y ); x += fm.stringWidth( "Wrapped In:" ) + 5; g2d.setColor( Color.RED );
307 g2d.drawString( sWrappedException, x, y );
308 x = 25;
309 y += fm.getHeight( );
310 }
311 g2d.setColor( Color.BLACK );
312 y += 10;
313 g2d.drawString( "Message:", x, y ); x += fm.stringWidth( "Message:" ) + 5; g2d.setColor( Color.BLUE );
316 g2d.drawString( sMessage, x, y );
317 x = 25;
318 y += fm.getHeight( );
319 g2d.setColor( Color.BLACK );
320 y += 10;
321 g2d.drawString( "Trace:", x, y ); x = 40;
323 y += fm.getHeight( );
324 g2d.setColor( Color.GREEN.darker( ) );
325 for ( int i = 0; i < stea.length; i++ )
326 {
327 g2d.drawString( stea[i].getClassName( ) + ":" + stea[i].getMethodName( ) + "(...):" + stea[i].getLineNumber( ), x, y );
330 x = 40;
331 y += fm.getHeight( );
332 }
333 }
334
335
340 public void componentHidden( ComponentEvent e )
341 {
342
344 }
345
346
351 public void componentMoved( ComponentEvent e )
352 {
353
355 }
356
357
362 public void componentResized( ComponentEvent e )
363 {
364 bNeedsGeneration = true;
365 }
366
367
372 public void componentShown( ComponentEvent e )
373 {
374
376 }
377
378
382 private final class ControlPanel extends JPanel implements ActionListener
383 {
384 private static final long serialVersionUID = 1L;
385
386 private JComboBox jcbModels = null;
387
388 private JButton jbUpdate = null;
389
390 private final DataChartsViewer dcv;
391
392 ControlPanel( DataChartsViewer dcv )
393 {
394 this.dcv = dcv;
395
396 setLayout( new GridLayout ( 0, 1, 0, 0 ) );
397
398 JPanel jp = new JPanel ( );
399 jp.setLayout( new FlowLayout ( FlowLayout.LEFT, 3, 3 ) );
400
401 jp.add( new JLabel ( "Choose:" ) ); jcbModels = new JComboBox ( );
403
404 jcbModels.addItem( "Min Slice" ); jcbModels.addItem( "Multiple Y Axis" ); jcbModels.addItem( "Multiple Y Series" );
408 jcbModels.setSelectedIndex( 0 );
409 jp.add( jcbModels );
410
411 jbUpdate = new JButton ( "Update" ); jbUpdate.addActionListener( this );
413 jp.add( jbUpdate );
414
415 add( jp );
416 }
417
418
423 public void componentHidden( ComponentEvent cev )
424 {
425 setVisible( false );
426 }
427
428
433 public void componentMoved( ComponentEvent cev )
434 {
435 JFrame jf = (JFrame ) cev.getComponent( );
436 Rectangle r = jf.getBounds( );
437 setLocation( r.x, r.y + r.height );
438 setSize( r.width, 50 );
439 }
440
441
446 public void componentResized( ComponentEvent cev )
447 {
448 JFrame jf = (JFrame ) cev.getComponent( );
449 Rectangle r = jf.getBounds( );
450 setLocation( r.x, r.y + r.height );
451 setSize( r.width, 50 );
452 }
453
454
459 public void componentShown( ComponentEvent cev )
460 {
461 JFrame jf = (JFrame ) cev.getComponent( );
462 Rectangle r = jf.getBounds( );
463 setLocation( r.x, r.y + r.height );
464 setSize( r.width, 50 );
465 setVisible( true );
466 }
467
468
473 public void actionPerformed( ActionEvent e )
474 {
475 int i = jcbModels.getSelectedIndex( );
476 cm = null;
477 switch ( i )
478 {
479 case 0 :
480 cm = DataCharts.createMinSliceChart( );
481 break;
482 case 1 :
483 cm = DataCharts.createMulitYSeriesChart( );
484 break;
485 case 2 :
486 cm = DataCharts.createMultiYAxisChart( );
487 break;
488 }
489
490 bNeedsGeneration = true;
491 dcv.repaint( );
492 }
493 }
494 }
495 |
Popular Tags |
Java API By Example, From Geeks To Geeks.