Mon, 04 Feb 2008 19:49:48 +0100
refactoring in progress
39 | 1 | # |
2 | ||
3 | import os, sys | |
4 | import time | |
5 | import glob | |
6 | ||
7 | from PyQt4 import QtGui, QtCore, uic | |
8 | from PyQt4.QtCore import SIGNAL, Qt | |
9 | ||
10 | if "-m" in sys.argv: | |
11 | from dump_datablock_mockup import HP3562dumper | |
12 | else: | |
13 | from dump_datablock import HP3562dumper | |
14 | import q3562A_rc | |
15 | ||
16 | ldir = os.path.abspath(os.path.dirname(__file__)) | |
17 | sys.path.append(ldir) | |
18 | form_class, base_class = uic.loadUiType(os.path.join(ldir, "q3562A.ui")) | |
19 | ||
20 | from qpreferences import BaseItem, IntItem, UnicodeItem, ColorItem | |
21 | from qpreferences import PointItem, SizeItem, ByteArrayItem | |
22 | from qpreferences import AbstractPreferences | |
23 | from qpreferenceseditor import PreferencesEditor | |
24 | ||
25 | from tools import str_num_cmp | |
26 | ||
27 | class Preferences(AbstractPreferences): | |
28 | ORGANISATION="Logilab" | |
29 | APPLICATION="qgpib_plotter" | |
30 | ||
31 | _pos = PointItem() | |
32 | _size = SizeItem() | |
33 | _appState = ByteArrayItem() | |
34 | ||
35 | device = UnicodeItem(default='/dev/ttyUSB0', | |
36 | name=u'device', | |
37 | description=u'GPIB device', | |
38 | group="GPIB settings") | |
39 | address = IntItem(default=5, min=0, max=16, | |
40 | name=u'GPIB address', | |
41 | group="GPIB settings") | |
42 | ||
43 | background = ColorItem(default=QtGui.QColor("white"), | |
44 | name="Background", | |
45 | group="Colors") | |
46 | color0 = ColorItem(default=QtGui.QColor("black"), | |
47 | name="Pen #0", | |
48 | group="Colors") | |
49 | color1 = ColorItem(default=QtGui.QColor("green"), | |
50 | name="Pen #1", | |
51 | group="Colors") | |
52 | color2 = ColorItem(default=QtGui.QColor("red"), | |
53 | name="Pen #2", | |
54 | group="Colors") | |
55 | color3 = ColorItem(default=QtGui.QColor("blue"), | |
56 | name="Pen #3", | |
57 | group="Colors") | |
58 | color4 = ColorItem(default=QtGui.QColor("yellow"), | |
59 | name="Pen #4", | |
60 | group="Colors") | |
61 | color5 = ColorItem(default=QtGui.QColor("cyan"), | |
62 | name="Pen #5", | |
63 | group="Colors") | |
64 | color6 = ColorItem(default=QtGui.QColor("magenta"), | |
65 | name="Pen #6", | |
66 | group="Colors") | |
67 | color7 = ColorItem(default=QtGui.QColor("darkred"), | |
68 | name="Pen #7", | |
69 | group="Colors") | |
70 | ||
71 | class QtHPGLPlotter(QtGui.QMainWindow, form_class): | |
72 | def __init__(self, parent=None): | |
73 | QtGui.QMainWindow.__init__(self, parent) | |
74 | self._plots = {} | |
75 | self._prefs = Preferences() | |
76 | self.setupUi() | |
77 | self.initializeGPIB() | |
78 | if self._prefs._pos: | |
79 | self.move(self._prefs._pos) | |
80 | if self._prefs._size: | |
81 | self.resize(self._prefs._size) | |
82 | if self._prefs._appState: | |
83 | self.restoreState(self._prefs._appState) | |
84 | self.readPreferences() | |
85 | ||
86 | def readPreferences(self): | |
87 | bg = self._prefs.background | |
88 | if bg and bg.isValid(): | |
89 | self.plotterWidget.qview.setBackgroundBrush(QtGui.QBrush(bg)) | |
90 | pen_colors = [self._prefs["color%d"%i] for i in range(8)] | |
91 | self.plotterWidget.pen_colors = pen_colors | |
92 | ||
93 | def replotCurrent(self): | |
94 | self.currentPlotChanged(self.plotsView.currentIndex()) | |
95 | ||
96 | def setupUi(self): | |
97 | form_class.setupUi(self, self) # call qtdesigner generated form creation | |
98 | # actions defined in designer | |
99 | self.connect(self.actionPreferences, SIGNAL('triggered(bool)'), | |
100 | self.preferencesTriggered) | |
101 | self.connect(self.actionQuit, SIGNAL('triggered(bool)'), | |
102 | self.quitTriggered) | |
103 | self.actionQuit.setShortcut(QtGui.QKeySequence(u'Ctrl+Q')) | |
104 | self.connect(self.actionOpen, SIGNAL('triggered(bool)'), | |
105 | self.openTriggered) | |
106 | self.actionOpen.setShortcut(QtGui.QKeySequence(u'Ctrl+O')) | |
107 | self.connect(self.actionSave, SIGNAL('triggered(bool)'), | |
108 | self.saveTriggered) | |
109 | self.actionSave.setShortcut(QtGui.QKeySequence(u'Ctrl+S')) | |
110 | self.connect(self.actionSaveAs, SIGNAL('triggered(bool)'), | |
111 | self.saveAsTriggered) | |
112 | ||
113 | self.plotterWidget = QHPGLPlotterWidget(self) | |
114 | self.setCentralWidget(self.plotterWidget) | |
115 | ||
116 | self.connect(self.captureButton, SIGNAL("toggled(bool)"), | |
117 | self.captureToggled) | |
118 | ||
119 | self._plots_list = QtGui.QStringListModel() | |
120 | self.plotsView.setModel(self._plots_list) | |
121 | self.connect(self.plotsView, SIGNAL('activated(const QModelIndex&)'), | |
122 | self.currentPlotChanged) | |
123 | self.connect(self.plotsView.selectionModel(), | |
124 | SIGNAL('currentChanged(const QModelIndex&, const QModelIndex&)'), | |
125 | self.currentPlotChanged) | |
126 | ||
127 | def currentPlotChanged(self, index, old_index=None): | |
128 | if index.isValid(): | |
129 | value = unicode(self.plotsView.model().data(index, Qt.DisplayRole).toString()) | |
130 | ||
131 | self.plotterWidget.clear() | |
132 | self.plotterWidget.parse(self._plots[value]) | |
133 | ||
134 | def preferencesTriggered(self, checked=False): | |
135 | PreferencesEditor(self._prefs, self).exec_() | |
136 | self.readPreferences() | |
137 | self.replotCurrent() | |
138 | ||
139 | def quitTriggered(self, checked=False): | |
140 | self.close() | |
141 | ||
142 | def closeEvent(self, event): | |
143 | if 1: | |
144 | #if self.promptForSave(): | |
145 | self._prefs._pos = self.pos() | |
146 | self._prefs._size = self.size() | |
147 | self._prefs._appState = self.saveState() | |
148 | event.accept() | |
149 | else: | |
150 | event.ignore() | |
151 | ||
152 | def openTriggered(self, checked=False): | |
153 | filenames = QtGui.QFileDialog.getOpenFileNames(self, "Open a HPGL file to display", '.', 'HPGL files (*.plt)\nAll files (*)') | |
154 | self.openFiles(filenames) | |
155 | self.displayFirst() | |
156 | ||
157 | def displayFirst(self): | |
158 | if not self.plotsView.currentIndex().isValid(): | |
159 | self.plotsView.setCurrentIndex(self.plotsView.model().index(0, 0)) | |
160 | ||
161 | def openFiles(self, filenames): | |
162 | ok = False | |
163 | for filename in filenames: | |
164 | filename = str(filename) | |
165 | if os.path.exists(filename): | |
166 | data = open(filename).read() | |
167 | name = os.path.basename(filename) | |
168 | name = os.path.splitext(name)[0] | |
169 | lst = self.plotsView.model().stringList() | |
170 | lst.append(name) | |
171 | self._plots[name] = data | |
172 | self.plotsView.model().setStringList(lst) | |
173 | ok = True | |
174 | return ok | |
175 | ||
176 | def plotReceived(self, num): | |
177 | self._receiving = False | |
178 | self.setReceivingLed() | |
179 | plot, timestamp = self.captureThread.getPlot(num) | |
180 | name = "plot_%s"%(num) | |
181 | lst = self.plotsView.model().stringList() | |
182 | lst.append(name) | |
183 | self._plots[name] = plot | |
184 | self.plotsView.model().setStringList(lst) | |
185 | ||
186 | def plotStarted(self): | |
187 | self._receiving = True | |
188 | self.setReceivingLed() | |
189 | ||
190 | def saveTriggered(self, checked=False): | |
191 | print "save" | |
192 | ||
193 | def saveAsTriggered(self, checked=False): | |
194 | index = self.plotsView.selectionModel().currentIndex() | |
195 | if index.isValid(): | |
196 | filename = QtGui.QFileDialog.getSaveFileName(self, "Selecte a file name to save HPGL file", '.', 'HPGL files (*.plt)\nAll files (*)') | |
197 | n = index.row() | |
198 | value = unicode(self.plotsView.model().data(index, Qt.DisplayRole).toString()) | |
199 | open(filename, 'w').write(self._plots[value]) | |
200 | ||
201 | ||
202 | def initializeGPIB(self): | |
203 | self._online = False | |
204 | try: | |
205 | self.gpib_plotter = QGPIBplotter(device=self._prefs.device, | |
206 | address=self._prefs.address, | |
207 | ) | |
208 | self.captureThread = GPIBReceiver(self.gpib_plotter) | |
209 | self.connect(self.captureThread, SIGNAL('plotReceived(int)'), | |
210 | self.plotReceived) | |
211 | self.connect(self.captureThread, SIGNAL('plotStarted()'), | |
212 | self.plotStarted) | |
213 | self.captureThread.start() | |
214 | except Exception, e: | |
215 | #print e | |
216 | self.gpib_plotter = None | |
217 | self.setCaptureLed() | |
218 | ||
219 | def captureToggled(self, state): | |
220 | if state: | |
221 | if self.gpib_plotter is None: | |
222 | self.initializeGPIB() | |
223 | if self.gpib_plotter is None: | |
224 | QtGui.QMessageBox.critical(self, self.tr("GPIB error"), | |
225 | self.tr("<b>Unable to initialize GPIB connection</b>.<br>Please check your GPIB dongle and settings.")) | |
226 | self._online = False | |
227 | self.setCaptureLed() | |
228 | return | |
229 | self._online = True | |
230 | self.captureThread.startCapture() | |
231 | else: | |
232 | if self.captureThread: | |
233 | self.captureThread.stopCapture() | |
234 | self._online = False | |
235 | self.setCaptureLed() | |
236 | ||
237 | def setCaptureLed(self): | |
238 | if self._online: | |
239 | icn = QtGui.QIcon(':/icons/led_green.svg') | |
240 | else: | |
241 | icn = QtGui.QIcon(':/icons/led_green_off.svg') | |
242 | self.captureButton.setIcon(icn) | |
243 | self.captureButton.setChecked(self._online) | |
244 | ||
245 | def setReceivingLed(self): | |
246 | if self._receiving: | |
247 | icn = QtGui.QIcon(':/icons/led_red.svg') | |
248 | else: | |
249 | icn = QtGui.QIcon(':/icons/led_red_off.svg') | |
250 | self.receivingButton.setIcon(icn) | |
251 | ||
252 | class QGPIBplotter(GPIBplotter): | |
253 | def __init__(self, device="/dev/ttyUSB0", baudrate=115200, timeout=0.1, | |
254 | address=5): | |
255 | GPIBplotter.__init__(self, device, baudrate, timeout, address) | |
256 | self.emitter = None | |
257 | ||
258 | def plotStarted(self): | |
259 | if self.emitter: | |
260 | self.emitter.emit(SIGNAL('plotStarted()')) | |
261 | #self.emitter.msleep(1) | |
262 | ||
263 | class GPIBReceiver(QtCore.QThread): | |
264 | def __init__(self, cnx): | |
265 | QtCore.QThread.__init__(self) | |
266 | self.gpibplotter = cnx | |
267 | self.gpibplotter.emitter = self | |
268 | ||
269 | self._cancelmutex = QtCore.QMutex() | |
270 | self._cancel = False | |
271 | #self._nreceived = 0 | |
272 | self._plotsmutex = QtCore.QMutex() | |
273 | self._plots = [] | |
274 | self._startstopmutex = QtCore.QMutex() | |
275 | self._startstop = QtCore.QWaitCondition() | |
276 | self._capturing = False | |
277 | ||
278 | def cancel(self): | |
279 | self._cancelmutex.lock() | |
280 | self._cancel = True | |
281 | self._cancelmutex.unlock() | |
282 | ||
283 | def startCapture(self): | |
284 | self._startstop.wakeOne() | |
285 | ||
286 | def stopCapture(self): | |
287 | self._startstopmutex.lock() | |
288 | self._capturing = False | |
289 | self._startstopmutex.unlock() | |
290 | ||
291 | def run(self): | |
292 | while 1: | |
293 | self._cancelmutex.lock() | |
294 | if self._cancel: | |
295 | return | |
296 | self._cancelmutex.unlock() | |
297 | self._startstopmutex.lock() | |
298 | if not self._capturing: | |
299 | self._startstop.wait(self._startstopmutex) | |
300 | self._capturing = True | |
301 | self._startstopmutex.unlock() | |
302 | ||
303 | plot = self.gpibplotter.load_plot(wait_timeout=0.1) | |
304 | timestamp = time.time() | |
305 | if plot: | |
306 | self._plotsmutex.lock() | |
307 | self._plots.append((plot, timestamp)) | |
308 | n = len(self._plots) | |
309 | self._plotsmutex.unlock() | |
310 | self.emit(SIGNAL('plotReceived(int)'), n-1) | |
311 | self.msleep(10) | |
312 | ||
313 | def getPlot(self, num): | |
314 | self._plotsmutex.lock() | |
315 | try: | |
316 | return self._plots[num] | |
317 | finally: | |
318 | self._plotsmutex.unlock() | |
319 | ||
320 | def main(): | |
321 | import optparse | |
322 | opt = optparse.OptionParser('A simple PyQt4 HP7470A GPIB plotter emulator for USB-GPIB bundle (ProLogix)') | |
323 | opt.add_option('-m', '--mockup', default=False, | |
324 | action="store_true", | |
325 | dest='mockup', | |
326 | help='Use a pseudo GPIB connection (for test purpose)', | |
327 | ) | |
328 | opt.add_option('-v', '--verbose', default=False, | |
329 | action="store_true", | |
330 | dest="verbose", | |
331 | help="Verbose mode",) | |
332 | ||
333 | options, argv = opt.parse_args(sys.argv) | |
334 | ||
335 | a = QtGui.QApplication(argv) | |
336 | w = QtHPGLPlotter() | |
337 | files = [f for f in argv[1:] if os.path.isfile(f)] | |
338 | files.sort(cmp=str_num_cmp) | |
339 | if w.openFiles(files): | |
340 | w.displayFirst() | |
341 | ||
342 | w.show() | |
343 | a.exec_() | |
344 | ||
345 | if __name__ == '__main__': | |
346 | main() |