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1
11
12 package org.eclipse.birt.chart.examples.api.viewer;
13
14 import org.eclipse.birt.chart.device.IDeviceRenderer;
15 import org.eclipse.birt.chart.examples.api.script.JavaScriptViewer;
16 import org.eclipse.birt.chart.exception.ChartException;
17 import org.eclipse.birt.chart.factory.GeneratedChartState;
18 import org.eclipse.birt.chart.factory.Generator;
19 import org.eclipse.birt.chart.log.ILogger;
20 import org.eclipse.birt.chart.log.Logger;
21 import org.eclipse.birt.chart.model.Chart;
22 import org.eclipse.birt.chart.model.attribute.Bounds;
23 import org.eclipse.birt.chart.model.attribute.impl.BoundsImpl;
24 import org.eclipse.birt.chart.util.PluginSettings;
25 import org.eclipse.birt.core.exception.BirtException;
26 import org.eclipse.swt.SWT;
27 import org.eclipse.swt.events.PaintEvent;
28 import org.eclipse.swt.events.SelectionEvent;
29 import org.eclipse.swt.graphics.Device;
30 import org.eclipse.swt.graphics.Font;
31 import org.eclipse.swt.graphics.FontMetrics;
32 import org.eclipse.swt.graphics.GC;
33 import org.eclipse.swt.graphics.Image;
34 import org.eclipse.swt.graphics.Point;
35 import org.eclipse.swt.graphics.Rectangle;
36 import org.eclipse.swt.layout.GridData;
37 import org.eclipse.swt.layout.GridLayout;
38 import org.eclipse.swt.layout.RowLayout;
39 import org.eclipse.swt.widgets.Button;
40 import org.eclipse.swt.widgets.Combo;
41 import org.eclipse.swt.widgets.Composite;
42 import org.eclipse.swt.widgets.Display;
43 import org.eclipse.swt.widgets.Label;
44 import org.eclipse.swt.widgets.Shell;
45 import org.eclipse.swt.events.PaintListener;
46 import org.eclipse.swt.events.SelectionListener;
47
48 public class Chart3DViewer extends Composite implements
49 PaintListener,
50 SelectionListener
51 {
52
53 private IDeviceRenderer idr = null;
54
55 private Chart cm = null;
56
57 private static Combo cbType = null;
58
59 private static Button btn = null;
60
61 private GeneratedChartState gcs = null;
62
63 private boolean bNeedsGeneration = true;
64
65 private static ILogger logger = Logger.getLogger( JavaScriptViewer.class.getName( ) );
66
71 public static void main( String  [] args )
72 {
73 Display display = Display.getDefault( );
74 Shell shell = new Shell( display );
75 shell.setSize( 600, 400 );
76 shell.setLayout( new GridLayout( ) );
77
78 Chart3DViewer c3dViewer = new Chart3DViewer( shell, SWT.NO_BACKGROUND );
79 c3dViewer.setLayoutData( new GridData( GridData.FILL_BOTH ) );
80 c3dViewer.addPaintListener( c3dViewer );
81
82 Composite cBottom = new Composite( shell, SWT.NONE );
83 cBottom.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
84 cBottom.setLayout( new RowLayout( ) );
85
86 Label la = new Label( cBottom, SWT.NONE );
87
88 la.setText( "Choose: " ); cbType = new Combo( cBottom, SWT.DROP_DOWN | SWT.READ_ONLY );
90 cbType.add( "3D Bar Chart" ); cbType.add( "3D Line Chart" ); cbType.add( "3D Area Chart" ); cbType.select( 0 );
94
95 btn = new Button( cBottom, SWT.NONE );
96 btn.setText( "Update" ); btn.addSelectionListener( c3dViewer );
98
99 shell.open( );
100 while ( !shell.isDisposed( ) )
101 {
102 if ( !display.readAndDispatch( ) )
103 display.sleep( );
104 }
105 display.dispose( );
106 }
107
108
111 Chart3DViewer( Composite parent, int style )
112 {
113 super( parent, style );
114 final PluginSettings ps = PluginSettings.instance( );
115 try
116 {
117 idr = ps.getDevice( "dv.SWT" ); }
119 catch ( ChartException pex )
120 {
121 logger.log( pex );
122 }
123 cm = PrimitiveCharts.create3DBarChart( );
124 }
125
126
131 public final void paintControl( PaintEvent e )
132 {
133 Rectangle d = this.getClientArea( );
134 Image imgChart = new Image( this.getDisplay( ), d );
135 GC gcImage = new GC( imgChart );
136 idr.setProperty( IDeviceRenderer.GRAPHICS_CONTEXT, gcImage );
137
138 Bounds bo = BoundsImpl.create( 0, 0, d.width, d.height );
139 bo.scale( 72d / idr.getDisplayServer( ).getDpiResolution( ) );
140
141 Generator gr = Generator.instance( );
142 if ( bNeedsGeneration )
143 {
144 bNeedsGeneration = false;
145 try
146 {
147 gcs = gr.build( idr.getDisplayServer( ),
148 cm,
149 bo,
150 null,
151 null,
152 null );
153 }
154 catch ( ChartException ce )
155 {
156 ce.printStackTrace( );
157 }
158 }
159
160 try
161 {
162 gr.render( idr, gcs );
163 GC gc = e.gc;
164 gc.drawImage( imgChart, d.x, d.y );
165 }
166 catch ( ChartException gex )
167 {
168 showException( e.gc, gex );
169 }
170 }
171
172
177 public void widgetSelected( SelectionEvent e )
178 {
179 if ( e.widget.equals( btn ) )
180 {
181 int iSelection = cbType.getSelectionIndex( );
182 switch ( iSelection )
183 {
184 case 0 :
185 cm = PrimitiveCharts.create3DBarChart( );
186 break;
187 case 1 :
188 cm = PrimitiveCharts.create3DLineChart( );
189 break;
190 case 2 :
191 cm = PrimitiveCharts.create3DAreaChart( );
192 break;
193 }
194 bNeedsGeneration = true;
195 this.redraw( );
196 }
197 }
198
199
204 public void widgetDefaultSelected( SelectionEvent e )
205 {
206
208 }
209
210 private final void showException( GC g2d, Exception ex )
211 {
212 String sWrappedException = ex.getClass( ).getName( );
213 Throwable th = ex;
214 while ( ex.getCause( ) != null )
215 {
216 ex = (Exception ) ex.getCause( );
217 }
218 String sException = ex.getClass( ).getName( );
219 if ( sWrappedException.equals( sException ) )
220 {
221 sWrappedException = null;
222 }
223
224 String sMessage = null;
225 if ( th instanceof BirtException )
226 {
227 sMessage = ( (BirtException) th ).getLocalizedMessage( );
228 }
229 else
230 {
231 sMessage = ex.getMessage( );
232 }
233
234 if ( sMessage == null )
235 {
236 sMessage = "<null>"; }
238 StackTraceElement [] stea = ex.getStackTrace( );
239 Point d = this.getSize( );
240
241 Device dv = Display.getCurrent( );
242 Font fo = new Font( dv, "Courier", SWT.BOLD, 16 ); g2d.setFont( fo );
244 FontMetrics fm = g2d.getFontMetrics( );
245 g2d.setBackground( dv.getSystemColor( SWT.COLOR_WHITE ) );
246 g2d.fillRectangle( 20, 20, d.x - 40, d.y - 40 );
247 g2d.setForeground( dv.getSystemColor( SWT.COLOR_BLACK ) );
248 g2d.drawRectangle( 20, 20, d.x - 40, d.y - 40 );
249 g2d.setClipping( 20, 20, d.x - 40, d.y - 40 );
250 int x = 25, y = 20 + fm.getHeight( );
251 g2d.drawString( "Exception:", x, y ); x += g2d.textExtent( "Exception:" ).x + 5; g2d.setForeground( dv.getSystemColor( SWT.COLOR_RED ) );
254 g2d.drawString( sException, x, y );
255 x = 25;
256 y += fm.getHeight( );
257 if ( sWrappedException != null )
258 {
259 g2d.setForeground( dv.getSystemColor( SWT.COLOR_BLACK ) );
260 g2d.drawString( "Wrapped In:", x, y ); x += g2d.textExtent( "Wrapped In:" ).x + 5; g2d.setForeground( dv.getSystemColor( SWT.COLOR_RED ) );
263 g2d.drawString( sWrappedException, x, y );
264 x = 25;
265 y += fm.getHeight( );
266 }
267 g2d.setForeground( dv.getSystemColor( SWT.COLOR_BLACK ) );
268 y += 10;
269 g2d.drawString( "Message:", x, y ); x += g2d.textExtent( "Message:" ).x + 5; g2d.setForeground( dv.getSystemColor( SWT.COLOR_BLUE ) );
272 g2d.drawString( sMessage, x, y );
273 x = 25;
274 y += fm.getHeight( );
275 g2d.setForeground( dv.getSystemColor( SWT.COLOR_BLACK ) );
276 y += 10;
277 g2d.drawString( "Trace:", x, y ); x = 40;
279 y += fm.getHeight( );
280 g2d.setForeground( dv.getSystemColor( SWT.COLOR_DARK_GREEN ) );
281 for ( int i = 0; i < stea.length; i++ )
282 {
283 g2d.drawString( stea[i].getClassName( ) + ":" + stea[i].getMethodName( )
285 + "(...):" + stea[i].getLineNumber( ), x, y );
287 x = 40;
288 y += fm.getHeight( );
289 }
290 fo.dispose( );
291 }
292 }
293 |
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