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1
11
12 package org.eclipse.birt.chart.examples.api.interactivity;
13
14 import java.util.HashMap  ;
15 import java.util.Map ;
16
17 import org.eclipse.birt.chart.device.IDeviceRenderer;
18 import org.eclipse.birt.chart.device.ICallBackNotifier;
19 import org.eclipse.birt.chart.exception.ChartException;
20 import org.eclipse.birt.chart.factory.GeneratedChartState;
21 import org.eclipse.birt.chart.factory.Generator;
22 import org.eclipse.birt.chart.model.Chart;
23 import org.eclipse.birt.chart.model.attribute.Bounds;
24 import org.eclipse.birt.chart.model.attribute.CallBackValue;
25 import org.eclipse.birt.chart.model.attribute.impl.BoundsImpl;
26 import org.eclipse.birt.chart.util.PluginSettings;
27 import org.eclipse.swt.SWT;
28 import org.eclipse.swt.events.PaintEvent;
29 import org.eclipse.swt.events.PaintListener;
30 import org.eclipse.swt.events.SelectionEvent;
31 import org.eclipse.swt.events.SelectionListener;
32 import org.eclipse.swt.graphics.GC;
33 import org.eclipse.swt.graphics.Image;
34 import org.eclipse.swt.graphics.Rectangle;
35 import org.eclipse.swt.layout.GridData;
36 import org.eclipse.swt.layout.GridLayout;
37 import org.eclipse.swt.layout.RowLayout;
38 import org.eclipse.swt.widgets.Button;
39 import org.eclipse.swt.widgets.Combo;
40 import org.eclipse.swt.widgets.Composite;
41 import org.eclipse.swt.widgets.Display;
42 import org.eclipse.swt.widgets.Label;
43 import org.eclipse.swt.widgets.Shell;
44 import org.eclipse.swt.widgets.MessageBox;
45
46
50 public final class SwtInteractivityViewer extends Composite implements
51 PaintListener,
52 ICallBackNotifier,
53 SelectionListener
54 {
55 private IDeviceRenderer idr = null;
56
57 private Chart cm = null;
58
59 private static Combo cbType = null;
60
61 private static Button btn = null;
62
63 private GeneratedChartState gcs = null;
64
65 private boolean bNeedsGeneration = true;
66
67 private Map contextMap;
68
69
74 public static void main( String [] args )
75 {
76 Display display = Display.getDefault( );
77 Shell shell = new Shell( display );
78 shell.setSize( 600, 400 );
79 shell.setLayout( new GridLayout( ) );
80
81 SwtInteractivityViewer siv = new SwtInteractivityViewer( shell,
82 SWT.NO_BACKGROUND );
83 siv.setLayoutData( new GridData( GridData.FILL_BOTH ) );
84 siv.addPaintListener( siv );
85
86 Composite cBottom = new Composite( shell, SWT.NONE );
87 cBottom.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
88 cBottom.setLayout( new RowLayout( ) );
89
90 Label la = new Label( cBottom, SWT.NONE );
91
92 la.setText( "Choose: " ); cbType = new Combo( cBottom, SWT.DROP_DOWN | SWT.READ_ONLY );
94 cbType.add( "Highlight Series" ); cbType.add( "Show Tooltip" ); cbType.add( "Toggle Visibility" ); cbType.add( "URL Redirect" ); cbType.add( "Call Back" ); cbType.select( 0 );
100
101 btn = new Button( cBottom, SWT.NONE );
102 btn.setText( "Update" ); btn.addSelectionListener( siv );
104
105 shell.open( );
106 while ( !shell.isDisposed( ) )
107 {
108 if ( !display.readAndDispatch( ) )
109 display.sleep( );
110 }
111 display.dispose( );
112 }
113
114
117 SwtInteractivityViewer( Composite parent, int style )
118 {
119 super( parent, style );
120
121 contextMap = new HashMap ();
122
123 final PluginSettings ps = PluginSettings.instance( );
124 try
125 {
126 idr = ps.getDevice( "dv.SWT" ); idr.setProperty( IDeviceRenderer.UPDATE_NOTIFIER, this );
128 }
129 catch ( ChartException ex )
130 {
131 ex.printStackTrace( );
132 }
133 cm = InteractivityCharts.createHSChart( );
134 }
135
136
141 public void paintControl( PaintEvent e )
142 {
143 Rectangle d = this.getClientArea( );
144 Image imgChart = new Image( this.getDisplay( ), d );
145 GC gcImage = new GC( imgChart );
146 idr.setProperty( IDeviceRenderer.GRAPHICS_CONTEXT, gcImage );
147
148 Bounds bo = BoundsImpl.create( 0, 0, d.width, d.height );
149 bo.scale( 72d / idr.getDisplayServer( ).getDpiResolution( ) );
150
151 Generator gr = Generator.instance( );
152 if ( bNeedsGeneration )
153 {
154 bNeedsGeneration = false;
155 try
156 {
157 gcs = gr.build( idr.getDisplayServer( ),
158 cm,
159 bo,
160 null,
161 null,
162 null );
163 }
164 catch ( ChartException ce )
165 {
166 ce.printStackTrace( );
167 }
168 }
169
170 try
171 {
172 gr.render( idr, gcs );
173 GC gc = e.gc;
174 gc.drawImage( imgChart, d.x, d.y );
175 }
176 catch ( ChartException ce )
177 {
178 ce.printStackTrace( );
179 }
180 }
181
182
187 public void widgetSelected( SelectionEvent e )
188 {
189 if ( e.widget.equals( btn ) )
190 {
191 int iSelection = cbType.getSelectionIndex( );
192 switch ( iSelection )
193 {
194 case 0 :
195 cm = InteractivityCharts.createHSChart( );
196 break;
197 case 1 :
198 cm = InteractivityCharts.createSTChart( );
199 break;
200 case 2 :
201 cm = InteractivityCharts.createTVChart( );
202 break;
203 case 3 :
204 cm = InteractivityCharts.createURChart( );
205 break;
206 case 4 :
207 cm = InteractivityCharts.createCBChart( );
208 break;
209 }
210 bNeedsGeneration = true;
211 this.redraw( );
212 }
213 }
214
215
220 public void widgetDefaultSelected( SelectionEvent e )
221 {
222 }
224
225
230 public Chart getDesignTimeModel( )
231 {
232 return cm;
233 }
234
235
240 public Chart getRunTimeModel( )
241 {
242 return gcs.getChartModel( );
243 }
244
245 public Object peerInstance( )
246 {
247 return this;
248 }
249
250 public void regenerateChart( )
251 {
252 bNeedsGeneration = true;
253 redraw( );
254 }
255
256 public void repaintChart( )
257 {
258 redraw( );
259 }
260
261
266 public Object getContext( Object key )
267 {
268 return contextMap.get( key );
269 }
270
271
277 public Object putContext( Object key, Object value )
278 {
279 return contextMap.put( key, value );
280 }
281
282
287 public Object removeContext( Object key )
288 {
289 return contextMap.remove( key );
290 }
291
292 public void callback( Object event, Object source, CallBackValue value )
293 {
294 MessageBox mb = new MessageBox ( this.getShell( ) );
295 mb.setText( value.getIdentifier( ) );
296 mb.open( );
297 }
298
299 }
300 |
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