source: branches/hpc33/python/customgui_tkagg.py@ 2357

Last change on this file since 2357 was 2174, checked in by Kana Sugimoto, 14 years ago

New Development: No

JIRA Issue: No (minor fix)

Ready for Test: Yes

Interface Changes: No

What Interface Changed:

Test Programs:

Put in Release Notes: No

Module(s): asapplotter, flagplotter, sdplot, and sdflag

Description: a minor fix in printing message on plot
File size: 26.1 KB
Line 
1import os
2import matplotlib, numpy
3from asap.logging import asaplog, asaplog_post_dec
4from matplotlib.patches import Rectangle
5from asap.parameters import rcParams
6from asap._asap import stmath
7from asap.customgui_base import *
8
9import Tkinter as Tk
10import tkMessageBox
11
12######################################
13## Add CASA custom toolbar ##
14######################################
15class CustomToolbarTkAgg(CustomToolbarCommon, Tk.Frame):
16 def __init__(self,parent):
17 from asap.asapplotter import asapplotter
18 if not isinstance(parent,asapplotter):
19 return False
20 if not parent._plotter:
21 return False
22 self._p = parent._plotter
23 self.figmgr = self._p.figmgr
24 self.canvas = self.figmgr.canvas
25 self.mode = ''
26 self.button = True
27 self.pagecount = None
28 CustomToolbarCommon.__init__(self,parent)
29 self.notewin = NotationWindowTkAgg(master=self.canvas)
30 self._add_custom_toolbar()
31
32 def _add_custom_toolbar(self):
33 Tk.Frame.__init__(self,master=self.figmgr.window)
34 #self.bSpec = self._NewButton(master=self,
35 # text='spec value',
36 # command=self.spec_show)
37 self.bNote = self._NewButton(master=self,
38 text='notation',
39 command=self.modify_note)
40
41 self.bStat = self._NewButton(master=self,
42 text='statistics',
43 command=self.stat_cal)
44 self.bQuit = self._NewButton(master=self,
45 text='Quit',
46 command=self.quit,
47 side=Tk.RIGHT)
48
49 # page change oparations
50 frPage = Tk.Frame(master=self,borderwidth=2,relief=Tk.GROOVE)
51 frPage.pack(ipadx=2,padx=10,side=Tk.RIGHT)
52 self.lPagetitle = Tk.Label(master=frPage,text='Page:',padx=5)
53 self.lPagetitle.pack(side=Tk.LEFT)
54 self.pagecount = Tk.StringVar(master=frPage)
55 self.lPagecount = Tk.Label(master=frPage,
56 textvariable=self.pagecount,
57 padx=5,bg='white')
58 self.lPagecount.pack(side=Tk.LEFT,padx=3)
59
60 self.bNext = self._NewButton(master=frPage,
61 text=' + ',
62 command=self.next_page)
63 self.bPrev = self._NewButton(master=frPage,
64 text=' - ',
65 command=self.prev_page)
66
67 if os.uname()[0] != 'Darwin':
68 self.bPrev.config(padx=5)
69 self.bNext.config(padx=5)
70
71 self.pack(side=Tk.BOTTOM,fill=Tk.BOTH)
72 self.pagecount.set(' '*4)
73
74 self.disable_button()
75 return #self
76
77 def _NewButton(self, master, text, command, side=Tk.LEFT):
78 if os.uname()[0] == 'Darwin':
79 b = Tk.Button(master=master, text=text, command=command)
80 else:
81 b = Tk.Button(master=master, text=text, padx=2, pady=2,
82 command=command)
83 b.pack(side=side)
84 return b
85
86 def show_pagenum(self,pagenum,formatstr):
87 self.pagecount.set(formatstr % (pagenum))
88
89 def spec_show(self):
90 if not self.figmgr.toolbar.mode == '' or not self.button: return
91 self.figmgr.toolbar.set_message('spec value: drag on a spec')
92 if self.mode == 'spec': return
93 #self.bStat.config(relief='raised')
94 #self.bSpec.config(relief='sunken')
95 #self.bNote.config(relief='raised')
96 self.mode = 'spec'
97 self.notewin.close_widgets()
98 self.__disconnect_event()
99 self._p.register('button_press',self._select_spectrum)
100
101 def stat_cal(self):
102 if not self.figmgr.toolbar.mode == '' or not self.button: return
103 self.figmgr.toolbar.set_message('statistics: select a region')
104 if self.mode == 'stat':
105 # go back to spec mode
106 self.bStat.config(relief='raised')
107 self.spec_show()
108 return
109 #self.bSpec.config(relief='raised')
110 self.bStat.config(relief='sunken')
111 self.bNote.config(relief='raised')
112 self.mode = 'stat'
113 self.notewin.close_widgets()
114 self.__disconnect_event()
115 self._p.register('button_press',self._single_mask)
116
117 def modify_note(self):
118 if not self.figmgr.toolbar.mode == '': return
119 self.figmgr.toolbar.set_message('text: select a position/text')
120 if self.mode == 'note':
121 self.bNote.config(relief='raised')
122 self.mode = 'none'
123 self.spec_show()
124 return
125 #self.bSpec.config(relief='raised')
126 self.bStat.config(relief='raised')
127 self.bNote.config(relief='sunken')
128 self.mode = 'note'
129 self.__disconnect_event()
130 self._p.register('button_press',self._mod_note)
131
132 def quit(self):
133 self.__disconnect_event()
134 #self.delete_bar()
135 self.disable_button()
136 self.figmgr.window.wm_withdraw()
137
138 def enable_button(self):
139 if self.button: return
140 #self.bSpec.config(state=Tk.NORMAL)
141 self.bStat.config(state=Tk.NORMAL)
142 self.button = True
143 self.spec_show()
144
145 def disable_button(self):
146 if not self.button: return
147 #self.bSpec.config(relief='raised', state=Tk.DISABLED)
148 self.bStat.config(relief='raised', state=Tk.DISABLED)
149 #self.bNext.config(state=Tk.DISABLED)
150 #self.bPrev.config(state=Tk.DISABLED)
151 self.button = False
152 self.mode = ''
153 self.__disconnect_event()
154
155 def enable_next(self):
156 self.bNext.config(state=Tk.NORMAL)
157
158 def disable_next(self):
159 self.bNext.config(state=Tk.DISABLED)
160
161 def enable_prev(self):
162 self.bPrev.config(state=Tk.NORMAL)
163
164 def disable_prev(self):
165 self.bPrev.config(state=Tk.DISABLED)
166
167 # pause buttons for slow operations
168 def _pause_buttons(self,operation="end",msg=""):
169 buttons = ["bStat","bNote","bQuit"]
170 if operation == "start":
171 state = Tk.DISABLED
172 else:
173 state = Tk.NORMAL
174 for btn in buttons:
175 getattr(self,btn).config(state=state)
176 self.figmgr.toolbar.set_message(msg)
177
178 def delete_bar(self):
179 self.__disconnect_event()
180 self.destroy()
181
182 def __disconnect_event(self):
183 self._p.register('button_press',None)
184 self._p.register('button_release',None)
185
186 def _draw_span(self,axes,x0,x1,**kwargs):
187 height = self._p.figure.bbox.height
188 y0 = height - axes.bbox.y0
189 y1 = height - axes.bbox.y1
190 return self._p.canvas._tkcanvas.create_rectangle(x0,y0,x1,y1,**kwargs)
191
192 def _remove_span(self,span):
193 self._p.canvas._tkcanvas.delete(span)
194
195
196
197######################################
198## Notation box window ##
199######################################
200class NotationWindowTkAgg(NotationWindowCommon):
201 """
202 Backend based class to create widgets to add, modify, or delete
203 note on the plot.
204
205 Note:
206 Press LEFT-mouse button on the plot to ADD a note on the canvas.
207 A notation window will be loaded for specifying note string and
208 anchor. The note will be anchored on a position in whether figure-
209 (0-1 relative in a figure), panel- (0-1 relative in a plot axes),
210 or data-coordinate (data value in a plot axes).
211 Press RIGHT-mouse button on a note to MODIFY/DELETE it. A cascade
212 menu will be displayed and you can select an operation.
213 """
214 def __init__(self,master=None):
215 self.parent = master._tkcanvas
216 NotationWindowCommon.__init__(self,master=master)
217 self.anchval = None
218 self.textwin = self._create_textwindow(master=None)
219 self.menu = self._create_modmenu(master=self.parent)
220
221 ### Notation window widget
222 def _create_textwindow(self,master=None):
223 """Create notation window widget and iconfy it"""
224 twin = Tk.Toplevel(padx=3,pady=3)
225 twin.title("Notation")
226 twin.resizable(width=True,height=True)
227 self.textbox = self._NotationBox(parent=twin)
228 self.radio = self._AnchorRadio(parent=twin)
229 self.actionbs = self._ActionButtons(parent=twin)
230
231 self.textbox.pack(side=Tk.TOP,fill=Tk.BOTH,expand=True)
232 self.actionbs.pack(side=Tk.BOTTOM)
233 self.radio.pack(side=Tk.BOTTOM)
234 #twin.deiconify()
235 #twin.minsize(width=twin.winfo_width(),height=twin.winfo_height())
236 #twin.lift()
237 twin.withdraw()
238 return twin
239
240 def _NotationBox(self,parent=None):
241 textbox = Tk.Text(master=parent,background='white',
242 height=2,width=20,cursor="xterm",
243 padx=2,pady=2,undo=True,maxundo=10,
244 relief='sunken',borderwidth=3,
245 state=Tk.NORMAL,takefocus=1)
246 return textbox
247
248 def _AnchorRadio(self,parent=None):
249 radio = Tk.LabelFrame(master=parent,text="anchor",
250 labelanchor="nw",padx=5,pady=3)
251 self.anchval = Tk.IntVar(master=radio,value=0)
252 self.rFig = self._NewRadioButton(radio,"figure",state=Tk.NORMAL,
253 variable=self.anchval,value=0,
254 side=Tk.LEFT)
255 self.rAxis = self._NewRadioButton(radio,"panel",state=Tk.DISABLED,
256 variable=self.anchval,value=1,
257 side=Tk.LEFT)
258 self.rData = self._NewRadioButton(radio,"data",state=Tk.DISABLED,
259 variable=self.anchval,value=2,
260 side=Tk.LEFT)
261 # set initial selection "figure"
262 self.anchval.set(0)
263 return radio
264
265 def _NewRadioButton(self,parent,text,state=Tk.NORMAL,variable=None,value=None,side=Tk.LEFT):
266 rb = Tk.Radiobutton(master=parent,text=text,state=state,
267 variable=variable,value=value)
268 rb.pack(side=side)
269 return rb
270
271 def _enable_radio(self):
272 """Enable 'panel' and 'data' radio button"""
273 self.rAxis.config(state=Tk.NORMAL)
274 self.rData.config(state=Tk.NORMAL)
275 #self.rFig.config(state=Tk.NORMAL)
276 self.rFig.select()
277
278 def _reset_radio(self):
279 """Disable 'panel' and 'data' radio button"""
280 self.rAxis.config(state=Tk.DISABLED)
281 self.rData.config(state=Tk.DISABLED)
282 self.rFig.config(state=Tk.NORMAL)
283 self.rFig.select()
284
285 def _select_radio(self,selection):
286 """Select a specified radio button"""
287 if not selection in self.anchors:
288 return
289 if selection == "data":
290 self.rData.select()
291 elif selection == "axes":
292 self.rAxis.select()
293 else:
294 self.rFig.select()
295
296 def _get_anchval(self):
297 """Returns a integer of a selected radio button"""
298 return self.anchval.get()
299
300 def _get_note(self):
301 """Returns a note string specified in the text box"""
302 return self.textbox.get("1.0",Tk.END)
303
304 def _clear_textbox(self):
305 """Clear the text box"""
306 self.textbox.delete("1.0",Tk.END)
307
308 def _set_note(self,note=None):
309 """Set a note string to the text box"""
310 self._clear_textbox()
311 if len(note) >0:
312 self.textbox.insert("1.0",note)
313
314 def _ActionButtons(self,parent=None):
315 actbuts = Tk.Frame(master=parent)
316 bCancel = self._NewButton(actbuts,"cancel",self._cancel_text,side=Tk.LEFT)
317 bPrint = self._NewButton(actbuts,"print", self._print_text,side=Tk.LEFT)
318 return actbuts
319
320 def _NewButton(self, parent, text, command, side=Tk.LEFT):
321 if(os.uname()[0] == 'Darwin'):
322 b = Tk.Button(master=parent, text=text, command=command)
323 else:
324 b = Tk.Button(master=parent, text=text, padx=2, pady=2, command=command)
325 b.pack(side=side)
326 return b
327
328 def _cancel_text(self):
329 """
330 Cancel adding/modifying a note and close notaion window.
331 called when 'cancel' is selected.
332 """
333 self.close_textwindow()
334
335 def _print_text(self):
336 """
337 Add/Modify a note. Called when 'print' is selected on the
338 notation window.
339 """
340 self.print_text()
341 self.close_textwindow()
342
343 def load_textwindow(self,event):
344 """
345 Load text window at a event position to add a note on a plot.
346 Parameter:
347 event: an even object to specify the position to load
348 text window.
349 """
350 self.close_modmenu()
351 if event.canvas._tkcanvas != self.parent:
352 raise RuntimeError, "Got invalid event!"
353
354 self.event = event
355 is_ax = (event.inaxes != None)
356 (xpix, ypix) = self._disppix2screen(event.x, event.y)
357 offset = 5
358 self.show_textwindow(xpix+offset,ypix+offset,enableaxes=is_ax)
359
360 def show_textwindow(self,xpix,ypix,basetext=None,enableaxes=False):
361 """
362 Load text window at a position of screen to add a note on a plot.
363 Parameters:
364 xpix, ypix: a pixel position from Upper-left corner
365 of the screen.
366 basetext: None (default) or any string.
367 A string to be printed on text box when loaded.
368 enable axes: False (default) or True.
369 If True, 'panel' & 'data' radio button is enabled.
370 """
371 if not self.textwin: return
372 self._reset_radio()
373 if enableaxes:
374 self._enable_radio()
375 self.textwin.deiconify()
376 (w,h) = self.textwin.minsize()
377 if w*h <= 1:
378 self.textwin.minsize(width=self.textwin.winfo_width(),
379 height=self.textwin.winfo_height())
380 (w,h) = self.textwin.minsize()
381 self.textwin.geometry("%sx%s+%s+%s"%(w,h,xpix,ypix))
382 self.textwin.lift()
383
384 def close_textwindow(self):
385 """Close text window."""
386 self.seltext = {}
387 self._reset_radio()
388 self._clear_textbox()
389 self.textwin.withdraw()
390
391
392 ### Modify/Delete menu widget
393 def _create_modmenu(self,master=None):
394 """Create modify/delete menu widget"""
395 if master:
396 self.parent = master
397 if not self.parent:
398 return False
399 menu = Tk.Menu(master=self.parent,tearoff=False)
400 menu.add_command(label="Modify",command=self._modify_note)
401 menu.add_command(label="Delete",command=self._delnote_dialog)
402 return menu
403
404 def load_modmenu(self,event):
405 """
406 Load cascade menu at a event position to modify or delete
407 selected text.
408 Parameter:
409 event: an even object to specify the position to load
410 text window.
411 """
412 self.close_textwindow()
413 self.seltext = self._get_selected_text(event)
414 if len(self.seltext) == 3:
415 tkcanvas = event.canvas._tkcanvas
416 xpos = tkcanvas.winfo_rootx() + int(event.x)
417 ypos = tkcanvas.winfo_rooty() \
418 + tkcanvas.winfo_height() - int(event.y)
419 self.menu.post(xpos,ypos)
420
421 def close_modmenu(self):
422 """Close cascade menu."""
423 self.seltext = {}
424 self.menu.unpost()
425
426 ### load text window for modification
427 def _modify_note(self):
428 """helper function to load text window to modify selected note"""
429 #print "Modify selected!!"
430 textobj = self.seltext['textobj']
431 (xtx, ytx) = textobj._get_xy_display()
432 is_ax = (self.seltext['anchor'] != 'figure')
433 if not is_ax:
434 # previous anchor is figure
435 pos = textobj.get_position()
436 is_ax = (self._get_axes_from_pos(pos,self.canvas) != None)
437
438 (xpix, ypix) = self._disppix2screen(xtx,ytx)
439 offset = int(textobj.get_size())*2
440 self.show_textwindow(xpix,ypix+offset,basetext=textobj.get_text(),\
441 enableaxes=is_ax)
442 self._select_radio(self.seltext['anchor'])
443 self._set_note(textobj.get_text())
444
445 ### close all widgets
446 def close_widgets(self):
447 """Close note window and menu"""
448 self.close_textwindow()
449 self.close_modmenu()
450
451 ### dialog to confirm deleting note
452 def _delnote_dialog(self):
453 """Load dialog to confirm deletion of the text"""
454 remind = "Delete text?\n '"+self.seltext['textobj'].get_text()+"'"
455 answer = tkMessageBox.askokcancel(parent=self.parent,title="Delete?",
456 message=remind,
457 default=tkMessageBox.CANCEL)
458 if answer:
459 self.delete_note()
460 else:
461 self.cancel_delete()
462
463 ### helper functions
464 def _disppix2screen(self,xpixd,ypixd):
465 """
466 helper function to calculate a pixel position form Upper-left
467 corner of the SCREEN from a pixel position (xpixd, ypixd)
468 from Lower-left of the CANVAS (which, e.g., event.x/y returns)
469
470 Returns:
471 (x, y): pixel position from Upper-left corner of the SCREEN.
472 """
473 xpixs = self.parent.winfo_rootx() + xpixd
474 ypixs = self.parent.winfo_rooty() + self.parent.winfo_height() \
475 - ypixd
476 return (int(xpixs), int(ypixs))
477
478
479
480
481
482
483###########################################
484## Add CASA custom Flag toolbar ##
485###########################################
486class CustomFlagToolbarTkAgg(CustomFlagToolbarCommon, Tk.Frame):
487 def __init__(self,parent):
488 from asap.asapplotter import asapplotter
489 if not isinstance(parent,asapplotter):
490 return False
491 if not parent._plotter:
492 return False
493 self._p = parent._plotter
494 self.figmgr = self._p.figmgr
495 self.canvas = self.figmgr.canvas
496 self.mode = ''
497 self.button = True
498 self.pagecount = None
499 CustomFlagToolbarCommon.__init__(self,parent)
500 self.notewin=NotationWindowTkAgg(master=self.canvas)
501 self._add_custom_toolbar()
502
503 def _add_custom_toolbar(self):
504 Tk.Frame.__init__(self,master=self.figmgr.window)
505 #self.bSpec = self._NewButton(master=self,
506 # text='spec value',
507 # command=self.spec_show)
508
509 self.bRegion = self._NewButton(master=self,
510 text='region',
511 command=self.select_region)
512 self.bPanel = self._NewButton(master=self,
513 text='panel',
514 command=self.select_panel)
515 self.bClear = self._NewButton(master=self,
516 text='clear',
517 command=self.cancel_select)
518 self.bFlag = self._NewButton(master=self,
519 text='flag',
520 command=self.flag)
521 self.bUnflag = self._NewButton(master=self,
522 text='unflag',
523 command=self.unflag)
524
525 self.bStat = self._NewButton(master=self,
526 text='statistics',
527 command=self.stat_cal)
528
529 self.bNote = self._NewButton(master=self,
530 text='notation',
531 command=self.modify_note)
532
533 self.bQuit = self._NewButton(master=self,
534 text='Quit',
535 #file="stock_close.ppm",
536 command=self.quit,
537 side=Tk.RIGHT)
538
539 # page change oparations
540 frPage = Tk.Frame(master=self,borderwidth=2,relief=Tk.GROOVE)
541 frPage.pack(ipadx=2,padx=10,side=Tk.RIGHT)
542 self.lPagetitle = Tk.Label(master=frPage,text='Page:',padx=5)
543 #width=8,anchor=Tk.E,padx=5)
544 self.lPagetitle.pack(side=Tk.LEFT)
545 self.pagecount = Tk.StringVar(master=frPage)
546 self.lPagecount = Tk.Label(master=frPage,
547 textvariable=self.pagecount,
548 padx=5,bg='white')
549 self.lPagecount.pack(side=Tk.LEFT,padx=3)
550
551 self.bNext=self._NewButton(master=frPage,
552 text=' + ',
553 #file="hand.ppm",
554 command=self.next_page)
555 self.bPrev=self._NewButton(master=frPage,
556 text=' - ',
557 command=self.prev_page)
558
559 if os.uname()[0] != 'Darwin':
560 self.bPrev.config(padx=5)
561 self.bNext.config(padx=5)
562
563 self.pack(side=Tk.BOTTOM,fill=Tk.BOTH)
564 self.pagecount.set(' '*4)
565
566 self.disable_button()
567 return #self
568
569 def _NewButton(self, master, text, command, side=Tk.LEFT,file=None):
570 img = None
571 if file:
572 file = os.path.join(matplotlib.rcParams['datapath'], 'images', file)
573 img = Tk.PhotoImage(master=master, file=file)
574
575 if os.uname()[0] == 'Darwin':
576 b = Tk.Button(master=master, text=text, image=img,
577 command=command)
578 if img: b.image = img
579 else:
580 b = Tk.Button(master=master, text=text, image=img, padx=2, pady=2,
581 command=command)
582 if img: b.image = img
583 b.pack(side=side)
584 return b
585
586 def show_pagenum(self,pagenum,formatstr):
587 self.pagecount.set(formatstr % (pagenum))
588
589 def spec_show(self):
590 if not self.figmgr.toolbar.mode == '' or not self.button: return
591 self.figmgr.toolbar.set_message('spec value: drag on a spec')
592 if self.mode == 'spec': return
593 self.mode = 'spec'
594 self.notewin.close_widgets()
595 self.__disconnect_event()
596 self._p.register('button_press',self._select_spectrum)
597
598 def modify_note(self):
599 if not self.figmgr.toolbar.mode == '': return
600 if self.mode == 'note':
601 self.bNote.config(relief='raised')
602 self.mode = 'none'
603 self.spec_show()
604 return
605 self.figmgr.toolbar.set_message('text: select a position/text')
606 self.bNote.config(relief='sunken')
607 self.bRegion.config(relief='raised')
608 self.bPanel.config(relief='raised')
609 self.mode = 'note'
610 self.__disconnect_event()
611 self._p.register('button_press',self._mod_note)
612
613 def select_region(self):
614 if not self.figmgr.toolbar.mode == '' or not self.button: return
615 if self.mode == 'region':
616 self.bRegion.config(relief='raised')
617 self.mode = 'none'
618 self.spec_show()
619 return
620 self.figmgr.toolbar.set_message('select regions: click at start and end channels')
621 self.bNote.config(relief='raised')
622 self.bRegion.config(relief='sunken')
623 self.bPanel.config(relief='raised')
624 self.mode = 'region'
625 self.notewin.close_widgets()
626 self.__disconnect_event()
627 self._p.register('button_press',self._add_region)
628
629 def select_panel(self):
630 if not self.figmgr.toolbar.mode == '' or not self.button: return
631 if self.mode == 'panel':
632 self.bPanel.config(relief='raised')
633 self.mode = 'none'
634 self.spec_show()
635 return
636 self.figmgr.toolbar.set_message('select spectra: click on subplots')
637 self.bNote.config(relief='raised')
638 self.bRegion.config(relief='raised')
639 self.bPanel.config(relief='sunken')
640 self.mode = 'panel'
641 self.notewin.close_widgets()
642 self.__disconnect_event()
643 self._p.register('button_press',self._add_panel)
644
645 def quit(self):
646 self.__disconnect_event()
647 self.disable_button()
648 self.figmgr.window.wm_withdraw()
649
650 def enable_button(self):
651 if self.button: return
652 self.bRegion.config(state=Tk.NORMAL)
653 self.bPanel.config(state=Tk.NORMAL)
654 self.bClear.config(state=Tk.NORMAL)
655 self.bFlag.config(state=Tk.NORMAL)
656 self.bUnflag.config(state=Tk.NORMAL)
657 self.bStat.config(state=Tk.NORMAL)
658 self.button = True
659 self.spec_show()
660
661 def disable_button(self):
662 ## disable buttons which don't work for plottp
663 if not self.button: return
664 self.bRegion.config(relief='raised')
665 self.bPanel.config(relief='raised')
666 self.bRegion.config(state=Tk.DISABLED)
667 self.bPanel.config(state=Tk.DISABLED)
668 self.bClear.config(state=Tk.DISABLED)
669 self.bFlag.config(state=Tk.DISABLED)
670 self.bUnflag.config(state=Tk.DISABLED)
671 self.bStat.config(state=Tk.DISABLED)
672 self.bNext.config(state=Tk.DISABLED)
673 self.bPrev.config(state=Tk.DISABLED)
674 self.button = False
675 self.mode = ''
676 self.notewin.close_widgets()
677 self.__disconnect_event()
678
679 def enable_next(self):
680 self.bNext.config(state=Tk.NORMAL)
681
682 def disable_next(self):
683 self.bNext.config(state=Tk.DISABLED)
684
685 def enable_prev(self):
686 self.bPrev.config(state=Tk.NORMAL)
687
688 def disable_prev(self):
689 self.bPrev.config(state=Tk.DISABLED)
690
691 # pause buttons for slow operations
692 def _pause_buttons(self,operation="end",msg=""):
693 buttons = ["bRegion","bPanel","bClear","bFlag","bUnflag","bStat",
694 "bNote","bQuit"]
695 if operation == "start":
696 state=Tk.DISABLED
697 else:
698 state=Tk.NORMAL
699 for btn in buttons:
700 getattr(self,btn).config(state=state)
701 self.figmgr.toolbar.set_message(msg)
702
703 def delete_bar(self):
704 self.__disconnect_event()
705 self.destroy()
706
707 def __disconnect_event(self):
708 self._p.register('button_press',None)
709 self._p.register('button_release',None)
710
711 def _draw_span(self,axes,x0,x1,**kwargs):
712 height = self._p.figure.bbox.height
713 y0 = height - axes.bbox.y0
714 y1 = height - axes.bbox.y1
715 return self._p.canvas._tkcanvas.create_rectangle(x0,y0,x1,y1,**kwargs)
716
717 def _remove_span(self,span):
718 self._p.canvas._tkcanvas.delete(span)
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