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/Users/lyon/j4p/src/video/SoundDigitizerPanel.java
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1 package video;
2
3 /**
4 * Created by
5 * User: lyon
6 * Date: Nov 29, 2003
7 * Time: 11:11:38 AM
8 *
9 */
10
11 import gui.run.RunScroll;
12
13 import javax.swing.JPanel;
14 import java.awt.*;
15 import java.awt.geom.Line2D;
16 import java.util.Vector;
17
18
19 public class SoundDigitizerPanel
20 extends JPanel {
21 private RunScroll topSb;
22 private RunScroll bottomSb;
23 private RunScroll leftSb;
24 private RunScroll rightSb;
25
26 private Vector lines = new Vector();
27
28 private int[] doubleData;
29
30 private int dx = 0;
31
32 private int oldDx = 0;
33
34 private int dy = 0;
35
36 private int oldDy = 0;
37
38 private final double
39 xScaleFactors[] = {50000, 25000, 10000, 5000, 2500, 1000,
40 500, 250, 100, 50, 25, 10,
41 5, 2.5, 1, .5, .25, .1,
42 .05, .025, .01, .005, .0025, .001,
43 .0005};
44 private final String xSFLabels[] = {"0.05 u", "0.1 u", "0.25 u",
45 "0.5 u", "1 u", "2.5 u",
46 "5 u", "10 u", "25 u",
47 "50 u", "100 u", "250 u",
48 "500 u", "1 m", "2.5 m",
49 "5 m", "10 m", "25 m",
50 "50 m", "100 m", "250 m",
51 "500 m", "1 ", "2.5 ",
52 "5 "};
53 private final int xsfStartIndex = 14;
54 private double xScaleFactor = xScaleFactors[xsfStartIndex];
55 private double oldXScaleFactor = xScaleFactors[xsfStartIndex];
56 private String xSFLabel = new String(xSFLabels[xsfStartIndex]);
57 private boolean labelsVisible = true;
58 private String title = null;
59
60
61 public void setLabelsVisible(boolean b) {
62 labelsVisible = b;
63 }
64
65 public static final double
66 yScaleFactors[] = {
67 50000,
68 25000,
69 10000,
70 5000,
71 2000,
72 1000,
73 500,
74 200,
75 100,
76 50,
77 20,
78 10,
79 5, 2, 1, .5, .2, .1};
80 public static final String
81 ySFLabels[] = {
82 "1 m", "2.5 m",
83 "5 m", "10 m",
84 "25 m", "50 m",
85 "100 m", "250 m",
86 "500 m",
87 "1 ", "2.5 ",
88 "5 ", "10 ",
89 "20 ", "50 ",
90 "100 ", "250 ", "500 "};
91 private final int yScaleFactorStartIndex = 8;
92 private double yScaleFactor = 1;
93 private double oldYScaleFactor = 1;
94 private String ySFLabel = new String(ySFLabels[yScaleFactorStartIndex]);
95 private int x;
96 private TracePanel tracePanel = new TracePanel();
97
98 /**
99 * This constructor uses a 440 Hz sine wave
100 * as the default waveform.
101 */
102 public SoundDigitizerPanel(int data[]) {
103 x =1;
104 digitizer(data);
105
106 }
107
108 public RunScroll getTopSb() {
109 return topSb;
110 }
111
112
113 public RunScroll getBottomSb() {
114 return bottomSb;
115 }
116
117
118 public RunScroll getLeftSb() {
119 return leftSb;
120 }
121
122 public RunScroll getRightSb() {
123 return rightSb;
124 }
125
126 public Component getTracePanel() {
127 return tracePanel;
128 }
129
130 public void setTopSb(RunScroll topSb) {
131 this.topSb = topSb;
132 }
133 public Dimension getMinimumSize() {
134 System.out.println("min size called in dp");
135 return getPreferredSize();
136 }
137
138 public Dimension getPreferredSize() {
139 System.out.println("preffered size in dp called");
140 return new Dimension(400, 200);
141 }
142
143 /**
144 * A read only variable
145 *
146 * @return the title as set by the constructor
147 */
148 public String getTitle() {
149 return title;
150 }
151
152 /**
153 * This constructor uses the <code>doubleData</code>
154 * as the source for the default waveform.
155 *
156 * @param doubleData an array of data to be displayed
157 //* @param title title of the panel.
158 */
159 //public OscopePanel(double doubleData[], String title) {
160 public void digitizer(final int doubleData[]) {
161
162 checkTheData(doubleData);
163 this.doubleData = doubleData;
164
165
166 topSb =
167 new RunScroll(Scrollbar.HORIZONTAL) {
168 public void run() {
169 int i = getValue();
170 xScaleFactor = xScaleFactors[i];
171 if (xScaleFactor != oldXScaleFactor) {
172 xSFLabel = xSFLabels[i];
173 tracePanel.repaint(500);
174 oldXScaleFactor = xScaleFactor;
175
176 }
177 }
178 };
179 // Set top scrollbar characteristics
180 topSb.setValues(xsfStartIndex, 0, 0, 24);
181
182
183 bottomSb =
184 new RunScroll(Scrollbar.HORIZONTAL) {
185
186 public void run() {
187
188 dx = getValue()*2;
189 if (dx != oldDx) {
190
191 tracePanel.repaint(500);
192 oldDx = dx;
193 }
194 }
195 };
196
197 leftSb =
198 new RunScroll(Scrollbar.VERTICAL) {
199 public void run() {
200 dy = getValue()*2;
201 if (dy != oldDy) {
202 tracePanel.repaint(500);
203 oldDy = dy;
204 }
205 }
206 };
207
208
209 rightSb =
210 new RunScroll(Scrollbar.VERTICAL) {
211 public void run() {
212 int i = getValue();
213 yScaleFactor = yScaleFactors[i];
214 if (yScaleFactor != oldYScaleFactor) {
215 ySFLabel = ySFLabels[i];
216 tracePanel.repaint(500);
217 oldYScaleFactor = yScaleFactor;
218 }
219 }
220 };
221 // Set right scrollbar characteristics
222 rightSb.setValues(yScaleFactorStartIndex, 0, 0,
223 yScaleFactors.length - 1);
224
225 bottomSb.setValues(0, 0, 0,88864);
226 // Set left scrollbar characteristics
227 leftSb.setValues(0, 0, -3000, 3000);
228 if (x==1){
229 setLayout(new BorderLayout());
230 add(topSb, BorderLayout.NORTH);
231 add(bottomSb, BorderLayout.SOUTH);
232 add(leftSb, BorderLayout.WEST);
233 add(rightSb, BorderLayout.EAST);
234 add(tracePanel, BorderLayout.CENTER);
235 setBackground(Color.white);
236 x =2;
237 }
238 // Sxet bottom scrollbar characteristics based on sample length
239
240
241 }
242
243 private void checkTheData(int[] doubleData) {
244 int min = Integer.MAX_VALUE;
245 int max = Integer.MIN_VALUE;
246 for (int i=0; i < doubleData.length; i++) {
247 int dat = doubleData[i];
248 if (dat < min) min = dat;
249 if (dat > max) max = dat;
250
251 }
252 System.out.println("min="+min);
253 System.out.println("max="+max);
254 }
255
256 class TracePanel extends JPanel {
257 private boolean drawGrid = true;
258 private Color gridColor = new Color(0, 255, 0);
259 private Dimension dim;
260 private int height, width;
261
262 public void setGridColor(Color c) {
263 gridColor = c;
264 }
265
266 public Dimension getMinimumSize() {
267 System.out.println("tracePanel min size called");
268 return new Dimension(200, 200);
269 }
270
271 public Dimension getPreferredSize() {
272 System.out.println("preferredSize called");
273 return new Dimension(200,200);
274 }
275
276 public void grid(int grid_spacing, Graphics g, Color c) {
277 Rectangle r = g.getClipBounds();
278 int w = r.width;
279 int h = r.height;
280 Color oldColor = g.getColor();
281 g.setColor(c);
282 for (int x = 0; x < w; x = x + grid_spacing) {
283 g.drawLine(x, 0, x, h);
284 }
285 for (int y = 0; y < h; y = y + grid_spacing) {
286 g.drawLine(0, y, w, y);
287 }
288 g.setColor(oldColor);
289 }
290
291 public void paint(Graphics g) {
292
293 drawData(g);
294 if (!labelsVisible) return;
295 drawXScaleLabel(g);
296
297 drawYScaleLabel(g);
298
299 }
300
301
302 private void drawData(Graphics gOld) {
303
304 Graphics2D g = (Graphics2D) gOld;
305 double limit = (doubleData.length * xScaleFactor);
306 dim = getSize();
307 height = dim.height;
308 width = dim.width;
309 g.clearRect(0, 0, width, height);
310 if (drawGrid)
311 grid(20, g, gridColor);
312
313
314 if (limit > width) limit = (double) width;
315 int j = dx;
316 done:
317 for (double i = 0; i < limit; i += xScaleFactor) {
318 if (j >= (doubleData.length - 1))
319 break done;
320 double x1 = i;
321 double y1 = (height - (
322 ( doubleData[j] * yScaleFactor)
323 * height / 400 + height / 200 ))- dy;
324 double x2 = (i + xScaleFactor);
325 double y2 = (height - (
326 ((doubleData[j + 1]) * yScaleFactor)
327 * height / 400 + height / 200)) - dy;
328
329 g.draw(new Line2D.Double(x1, y1/2 , x2, y2/2));
330
331 g.setColor(Color.red);
332
333 j++;
334 }
335 }
336
337
338 private void drawXScaleLabel(Graphics g) {
339 g.setColor(Color.black);
340 int height = 10;
341 int xloc = 20;
342 int yloc = 20;
343 String xsfLabel = xSFLabel + "sec/div";
344 int string_width = getFontMetrics(g.getFont()).stringWidth(xsfLabel);
345 int string_height = getFontMetrics(g.getFont()).getHeight();
346 g.clearRect(xloc, yloc, string_width, string_height);
347 g.drawString(xsfLabel, xloc, height + yloc);
348 }
349
350 private void drawYScaleLabel(Graphics g) {
351 g.setColor(Color.red);
352 int height = 10;
353 int xloc = 20;
354 int yloc = dim.height - 60;
355 String ysfLabel = ySFLabel + "v/div";
356 int string_width = getFontMetrics(g.getFont()).stringWidth(ysfLabel);
357 int string_height = getFontMetrics(g.getFont()).getHeight();
358 g.clearRect(xloc, yloc, string_width, string_height);
359 g.drawString(ysfLabel, xloc, height + yloc);
360 }
361
362 }
363
364 }
365
366