| 1 | # Authors: Joe VanAndel and Greg McFarlane |
| 2 | |
| 3 | import string |
| 4 | import sys |
| 5 | import time |
| 6 | import Tkinter |
| 7 | import Pmw |
| 8 | |
| 9 | class TimeCounter(Pmw.MegaWidget): |
| 10 | """Up-down counter |
| 11 | |
| 12 | A TimeCounter is a single-line entry widget with Up and Down arrows |
| 13 | which increment and decrement the Time value in the entry. |
| 14 | """ |
| 15 | |
| 16 | def __init__(self, parent = None, **kw): |
| 17 | |
| 18 | # Define the megawidget options. |
| 19 | INITOPT = Pmw.INITOPT |
| 20 | optiondefs = ( |
| 21 | ('autorepeat', 1, None), |
| 22 | ('buttonaspect', 1.0, INITOPT), |
| 23 | ('command', None, None), |
| 24 | ('initwait', 300, None), |
| 25 | ('labelmargin', 0, INITOPT), |
| 26 | ('labelpos', None, INITOPT), |
| 27 | ('max', None, self._max), |
| 28 | ('min', None, self._min), |
| 29 | ('padx', 0, INITOPT), |
| 30 | ('pady', 0, INITOPT), |
| 31 | ('repeatrate', 50, None), |
| 32 | ('value', None, INITOPT), |
| 33 | ) |
| 34 | self.defineoptions(kw, optiondefs) |
| 35 | |
| 36 | # Initialise the base class (after defining the options). |
| 37 | Pmw.MegaWidget.__init__(self, parent) |
| 38 | |
| 39 | self.arrowDirection = {} |
| 40 | self._flag = 'stopped' |
| 41 | self._timerId = None |
| 42 | |
| 43 | self._createComponents(kw) |
| 44 | |
| 45 | value = self['value'] |
| 46 | if value is None: |
| 47 | now = time.time() |
| 48 | value = time.strftime('%H:%M:%S', time.localtime(now)) |
| 49 | self.setvalue(value) |
| 50 | |
| 51 | # Check keywords and initialise options. |
| 52 | self.initialiseoptions() |
| 53 | |
| 54 | def _createComponents(self, kw): |
| 55 | |
| 56 | # Create the components. |
| 57 | interior = self.interior() |
| 58 | |
| 59 | # If there is no label, put the arrows and the entry directly |
| 60 | # into the interior, otherwise create a frame for them. In |
| 61 | # either case the border around the arrows and the entry will |
| 62 | # be raised (but not around the label). |
| 63 | if self['labelpos'] is None: |
| 64 | frame = interior |
| 65 | if not kw.has_key('hull_relief'): |
| 66 | frame.configure(relief = 'raised') |
| 67 | if not kw.has_key('hull_borderwidth'): |
| 68 | frame.configure(borderwidth = 1) |
| 69 | else: |
| 70 | frame = self.createcomponent('frame', |
| 71 | (), None, |
| 72 | Tkinter.Frame, (interior,), |
| 73 | relief = 'raised', borderwidth = 1) |
| 74 | frame.grid(column=2, row=2, sticky='nsew') |
| 75 | interior.grid_columnconfigure(2, weight=1) |
| 76 | interior.grid_rowconfigure(2, weight=1) |
| 77 | |
| 78 | # Create the down arrow buttons. |
| 79 | |
| 80 | # Create the hour down arrow. |
| 81 | self._downHourArrowBtn = self.createcomponent('downhourarrow', |
| 82 | (), 'Arrow', |
| 83 | Tkinter.Canvas, (frame,), |
| 84 | width = 16, height = 16, relief = 'raised', borderwidth = 2) |
| 85 | self.arrowDirection[self._downHourArrowBtn] = 'down' |
| 86 | self._downHourArrowBtn.grid(column = 0, row = 2) |
| 87 | |
| 88 | # Create the minute down arrow. |
| 89 | self._downMinuteArrowBtn = self.createcomponent('downminutearrow', |
| 90 | (), 'Arrow', |
| 91 | Tkinter.Canvas, (frame,), |
| 92 | width = 16, height = 16, relief = 'raised', borderwidth = 2) |
| 93 | self.arrowDirection[self._downMinuteArrowBtn] = 'down' |
| 94 | self._downMinuteArrowBtn.grid(column = 1, row = 2) |
| 95 | |
| 96 | # Create the second down arrow. |
| 97 | self._downSecondArrowBtn = self.createcomponent('downsecondarrow', |
| 98 | (), 'Arrow', |
| 99 | Tkinter.Canvas, (frame,), |
| 100 | width = 16, height = 16, relief = 'raised', borderwidth = 2) |
| 101 | self.arrowDirection[self._downSecondArrowBtn] = 'down' |
| 102 | self._downSecondArrowBtn.grid(column = 2, row = 2) |
| 103 | |
| 104 | # Create the entry fields. |
| 105 | |
| 106 | # Create the hour entry field. |
| 107 | self._hourCounterEntry = self.createcomponent('hourentryfield', |
| 108 | (('hourentry', 'hourentryfield_entry'),), None, |
| 109 | Pmw.EntryField, (frame,), validate='integer', entry_width = 2) |
| 110 | self._hourCounterEntry.grid(column = 0, row = 1, sticky = 'news') |
| 111 | |
| 112 | # Create the minute entry field. |
| 113 | self._minuteCounterEntry = self.createcomponent('minuteentryfield', |
| 114 | (('minuteentry', 'minuteentryfield_entry'),), None, |
| 115 | Pmw.EntryField, (frame,), validate='integer', entry_width = 2) |
| 116 | self._minuteCounterEntry.grid(column = 1, row = 1, sticky = 'news') |
| 117 | |
| 118 | # Create the second entry field. |
| 119 | self._secondCounterEntry = self.createcomponent('secondentryfield', |
| 120 | (('secondentry', 'secondentryfield_entry'),), None, |
| 121 | Pmw.EntryField, (frame,), validate='integer', entry_width = 2) |
| 122 | self._secondCounterEntry.grid(column = 2, row = 1, sticky = 'news') |
| 123 | |
| 124 | # Create the up arrow buttons. |
| 125 | |
| 126 | # Create the hour up arrow. |
| 127 | self._upHourArrowBtn = self.createcomponent('uphourarrow', |
| 128 | (), 'Arrow', |
| 129 | Tkinter.Canvas, (frame,), |
| 130 | width = 16, height = 16, relief = 'raised', borderwidth = 2) |
| 131 | self.arrowDirection[self._upHourArrowBtn] = 'up' |
| 132 | self._upHourArrowBtn.grid(column = 0, row = 0) |
| 133 | |
| 134 | # Create the minute up arrow. |
| 135 | self._upMinuteArrowBtn = self.createcomponent('upminutearrow', |
| 136 | (), 'Arrow', |
| 137 | Tkinter.Canvas, (frame,), |
| 138 | width = 16, height = 16, relief = 'raised', borderwidth = 2) |
| 139 | self.arrowDirection[self._upMinuteArrowBtn] = 'up' |
| 140 | self._upMinuteArrowBtn.grid(column = 1, row = 0) |
| 141 | |
| 142 | # Create the second up arrow. |
| 143 | self._upSecondArrowBtn = self.createcomponent('upsecondarrow', |
| 144 | (), 'Arrow', |
| 145 | Tkinter.Canvas, (frame,), |
| 146 | width = 16, height = 16, relief = 'raised', borderwidth = 2) |
| 147 | self.arrowDirection[self._upSecondArrowBtn] = 'up' |
| 148 | self._upSecondArrowBtn.grid(column = 2, row = 0) |
| 149 | |
| 150 | # Make it resize nicely. |
| 151 | padx = self['padx'] |
| 152 | pady = self['pady'] |
| 153 | for col in range(3): |
| 154 | frame.grid_columnconfigure(col, weight = 1, pad = padx) |
| 155 | frame.grid_rowconfigure(0, pad = pady) |
| 156 | frame.grid_rowconfigure(2, pad = pady) |
| 157 | |
| 158 | frame.grid_rowconfigure(1, weight = 1) |
| 159 | |
| 160 | # Create the label. |
| 161 | self.createlabel(interior) |
| 162 | |
| 163 | # Set bindings. |
| 164 | |
| 165 | # Up hour |
| 166 | self._upHourArrowBtn.bind('<Configure>', |
| 167 | lambda event, s=self,button=self._upHourArrowBtn: |
| 168 | s._drawArrow(button, 'up')) |
| 169 | |
| 170 | self._upHourArrowBtn.bind('<1>', |
| 171 | lambda event, s=self,button=self._upHourArrowBtn: |
| 172 | s._countUp(button, 3600)) |
| 173 | |
| 174 | self._upHourArrowBtn.bind('<Any-ButtonRelease-1>', |
| 175 | lambda event, s=self, button=self._upHourArrowBtn: |
| 176 | s._stopUpDown(button)) |
| 177 | |
| 178 | # Up minute |
| 179 | self._upMinuteArrowBtn.bind('<Configure>', |
| 180 | lambda event, s=self,button=self._upMinuteArrowBtn: |
| 181 | s._drawArrow(button, 'up')) |
| 182 | |
| 183 | |
| 184 | self._upMinuteArrowBtn.bind('<1>', |
| 185 | lambda event, s=self,button=self._upMinuteArrowBtn: |
| 186 | s._countUp(button, 60)) |
| 187 | |
| 188 | self._upMinuteArrowBtn.bind('<Any-ButtonRelease-1>', |
| 189 | lambda event, s=self, button=self._upMinuteArrowBtn: |
| 190 | s._stopUpDown(button)) |
| 191 | |
| 192 | # Up second |
| 193 | self._upSecondArrowBtn.bind('<Configure>', |
| 194 | lambda event, s=self,button=self._upSecondArrowBtn: |
| 195 | s._drawArrow(button, 'up')) |
| 196 | |
| 197 | |
| 198 | self._upSecondArrowBtn.bind('<1>', |
| 199 | lambda event, s=self,button=self._upSecondArrowBtn: |
| 200 | s._countUp(button, 1)) |
| 201 | |
| 202 | self._upSecondArrowBtn.bind('<Any-ButtonRelease-1>', |
| 203 | lambda event, s=self, button=self._upSecondArrowBtn: |
| 204 | s._stopUpDown(button)) |
| 205 | |
| 206 | # Down hour |
| 207 | self._downHourArrowBtn.bind('<Configure>', |
| 208 | lambda event, s=self,button=self._downHourArrowBtn: |
| 209 | s._drawArrow(button, 'down')) |
| 210 | |
| 211 | self._downHourArrowBtn.bind('<1>', |
| 212 | lambda event, s=self,button=self._downHourArrowBtn: |
| 213 | s._countDown(button, 3600)) |
| 214 | self._downHourArrowBtn.bind('<Any-ButtonRelease-1>', |
| 215 | lambda event, s=self, button=self._downHourArrowBtn: |
| 216 | s._stopUpDown(button)) |
| 217 | |
| 218 | |
| 219 | # Down minute |
| 220 | self._downMinuteArrowBtn.bind('<Configure>', |
| 221 | lambda event, s=self,button=self._downMinuteArrowBtn: |
| 222 | s._drawArrow(button, 'down')) |
| 223 | |
| 224 | self._downMinuteArrowBtn.bind('<1>', |
| 225 | lambda event, s=self,button=self._downMinuteArrowBtn: |
| 226 | s._countDown(button, 60)) |
| 227 | self._downMinuteArrowBtn.bind('<Any-ButtonRelease-1>', |
| 228 | lambda event, s=self, button=self._downMinuteArrowBtn: |
| 229 | s._stopUpDown(button)) |
| 230 | |
| 231 | # Down second |
| 232 | self._downSecondArrowBtn.bind('<Configure>', |
| 233 | lambda event, s=self,button=self._downSecondArrowBtn: |
| 234 | s._drawArrow(button, 'down')) |
| 235 | |
| 236 | self._downSecondArrowBtn.bind('<1>', |
| 237 | lambda event, s=self, button=self._downSecondArrowBtn: |
| 238 | s._countDown(button,1)) |
| 239 | self._downSecondArrowBtn.bind('<Any-ButtonRelease-1>', |
| 240 | lambda event, s=self, button=self._downSecondArrowBtn: |
| 241 | s._stopUpDown(button)) |
| 242 | |
| 243 | self._hourCounterEntry.component('entry').bind( |
| 244 | '<Return>', self._invoke) |
| 245 | self._minuteCounterEntry.component('entry').bind( |
| 246 | '<Return>', self._invoke) |
| 247 | self._secondCounterEntry.component('entry').bind( |
| 248 | '<Return>', self._invoke) |
| 249 | |
| 250 | self._hourCounterEntry.bind('<Configure>', self._resizeArrow) |
| 251 | self._minuteCounterEntry.bind('<Configure>', self._resizeArrow) |
| 252 | self._secondCounterEntry.bind('<Configure>', self._resizeArrow) |
| 253 | |
| 254 | def _drawArrow(self, arrow, direction): |
| 255 | Pmw.drawarrow(arrow, self['hourentry_foreground'], direction, 'arrow') |
| 256 | |
| 257 | def _resizeArrow(self, event = None): |
| 258 | for btn in (self._upHourArrowBtn, self._upMinuteArrowBtn, |
| 259 | self._upSecondArrowBtn, |
| 260 | self._downHourArrowBtn, |
| 261 | self._downMinuteArrowBtn, self._downSecondArrowBtn): |
| 262 | bw = (string.atoi(btn['borderwidth']) + |
| 263 | string.atoi(btn['highlightthickness'])) |
| 264 | newHeight = self._hourCounterEntry.winfo_reqheight() - 2 * bw |
| 265 | newWidth = int(newHeight * self['buttonaspect']) |
| 266 | btn.configure(width=newWidth, height=newHeight) |
| 267 | self._drawArrow(btn, self.arrowDirection[btn]) |
| 268 | |
| 269 | def _min(self): |
| 270 | min = self['min'] |
| 271 | if min is None: |
| 272 | self._minVal = 0 |
| 273 | else: |
| 274 | self._minVal = Pmw.timestringtoseconds(min) |
| 275 | |
| 276 | def _max(self): |
| 277 | max = self['max'] |
| 278 | if max is None: |
| 279 | self._maxVal = None |
| 280 | else: |
| 281 | self._maxVal = Pmw.timestringtoseconds(max) |
| 282 | |
| 283 | def getvalue(self): |
| 284 | return self.getstring() |
| 285 | |
| 286 | def setvalue(self, text): |
| 287 | list = string.split(text, ':') |
| 288 | if len(list) != 3: |
| 289 | raise ValueError, 'invalid value: ' + text |
| 290 | |
| 291 | self._hour = string.atoi(list[0]) |
| 292 | self._minute = string.atoi(list[1]) |
| 293 | self._second = string.atoi(list[2]) |
| 294 | |
| 295 | self._setHMS() |
| 296 | |
| 297 | def getstring(self): |
| 298 | return '%02d:%02d:%02d' % (self._hour, self._minute, self._second) |
| 299 | |
| 300 | def getint(self): |
| 301 | return self._hour * 3600 + self._minute * 60 + self._second |
| 302 | |
| 303 | def _countUp(self, button, increment): |
| 304 | self._relief = self._upHourArrowBtn.cget('relief') |
| 305 | button.configure(relief='sunken') |
| 306 | self._count(1, 'start', increment) |
| 307 | |
| 308 | def _countDown(self, button, increment): |
| 309 | |
| 310 | self._relief = self._downHourArrowBtn.cget('relief') |
| 311 | button.configure(relief='sunken') |
| 312 | self._count(-1, 'start', increment) |
| 313 | |
| 314 | def increment(self, seconds = 1): |
| 315 | self._count(1, 'force', seconds) |
| 316 | |
| 317 | def decrement(self, seconds = 1): |
| 318 | self._count(-1, 'force', seconds) |
| 319 | |
| 320 | def _count(self, factor, newFlag = None, increment = 1): |
| 321 | if newFlag != 'force': |
| 322 | if newFlag is not None: |
| 323 | self._flag = newFlag |
| 324 | |
| 325 | if self._flag == 'stopped': |
| 326 | return |
| 327 | |
| 328 | value = (string.atoi(self._hourCounterEntry.get()) *3600) + \ |
| 329 | (string.atoi(self._minuteCounterEntry.get()) *60) + \ |
| 330 | string.atoi(self._secondCounterEntry.get()) + \ |
| 331 | factor * increment |
| 332 | min = self._minVal |
| 333 | max = self._maxVal |
| 334 | if value < min: |
| 335 | value = min |
| 336 | if max is not None and value > max: |
| 337 | value = max |
| 338 | |
| 339 | self._hour = value /3600 |
| 340 | self._minute = (value - (self._hour*3600)) / 60 |
| 341 | self._second = value - (self._hour*3600) - (self._minute*60) |
| 342 | self._setHMS() |
| 343 | |
| 344 | if newFlag != 'force': |
| 345 | if self['autorepeat']: |
| 346 | if self._flag == 'start': |
| 347 | delay = self['initwait'] |
| 348 | self._flag = 'running' |
| 349 | else: |
| 350 | delay = self['repeatrate'] |
| 351 | self._timerId = self.after( |
| 352 | delay, lambda self=self, factor=factor,increment=increment: |
| 353 | self._count(factor,'running', increment)) |
| 354 | |
| 355 | def _setHMS(self): |
| 356 | self._hourCounterEntry.setentry('%02d' % self._hour) |
| 357 | self._minuteCounterEntry.setentry('%02d' % self._minute) |
| 358 | self._secondCounterEntry.setentry('%02d' % self._second) |
| 359 | |
| 360 | def _stopUpDown(self, button): |
| 361 | if self._timerId is not None: |
| 362 | self.after_cancel(self._timerId) |
| 363 | self._timerId = None |
| 364 | button.configure(relief=self._relief) |
| 365 | self._flag = 'stopped' |
| 366 | |
| 367 | def _invoke(self, event): |
| 368 | cmd = self['command'] |
| 369 | if callable(cmd): |
| 370 | cmd() |
| 371 | |
| 372 | def invoke(self): |
| 373 | cmd = self['command'] |
| 374 | if callable(cmd): |
| 375 | return cmd() |
| 376 | |
| 377 | def destroy(self): |
| 378 | if self._timerId is not None: |
| 379 | self.after_cancel(self._timerId) |
| 380 | self._timerId = None |
| 381 | Pmw.MegaWidget.destroy(self) |