1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
|
#! -*- coding: utf-8 -*-
#(c) Stefan Heher 2009
#1234567890123456789012345678901234567890123456789012345678901234567890123456789
import gtk
import pygtk
import pango
import time
import gobject
from timer import Timer
from sugar import profile
from sugar.graphics import style
from sugar.activity import activity
class Display:
"""
Definition and manipulation of all GUI-elemts.
Exception (redesign?): def define_buttons in classes derived from Exercise.
"""
print("in display, class definition")
# DnD for gtk_tree in
TARGETS = [
('pixbuf', gtk.TARGET_SAME_WIDGET, 0),
('text', gtk.TARGET_SAME_WIDGET, 1)
]
def __init__(self, window):
self._permanent_gui_elements(window)
self.errors = 0
self._ex = None # needed for feedback_table etc
# TODO: imprive information hiding
self._sett = None # setting updated by callbacks during input
self.running = False # switch settings_/feedback_table TODO rename
self._coll_key = None # semaphore for self.finish_collect_callback
# and Collection.select_exerc_callback
self._testvar = 'FOUND'
def register(self, sess, co, learner, exstore):
"""register _after_ Session and Coach have been instantiated"""
self._sess = sess
self._co = co
self._learner = learner
self._exstore = exstore
def _permanent_gui_elements(self, window):
# The display is partitioned as follows
#
# table:
# 0 1 2
#0+-------------------------+------------------------+
# | | |
#1| | OVERLAYS OF |
# | scrolled_window | exstore_table |
#2| | OR |
# | | settings_table |
#3+-------------------------+ OR |
# | | feedback_table |
#4| empty for calcs etc | |
# | | |
#5+-------------------------+------------------------+
self.main_window = window # Save the sugar main window
# whole window with 5 lines and 2 columns
self.table = gtk.Table(5, 2, True)
self.main_window.set_canvas(self.table)
self.log_buffer = gtk.TextBuffer()
self.tag_table = self.log_buffer.get_tag_table()
self.error_tag = gtk.TextTag("error") # tag for errors
self.error_tag.set_property("foreground", "blue")
self.tag_table.add(self.error_tag)
self.correct_tag = gtk.TextTag("correct")# tag for correct calcs
self.correct_tag.set_property("foreground", "green")
self.tag_table.add(self.correct_tag)
# Create a log_view with the previously created log_buffer
self.log_view = gtk.TextView(self.log_buffer)
# Set the font size for the log_view
self.log_view.modify_font(pango.FontDescription('sans bold 14'))
self.log_view.set_editable(False)
self.log_view.set_cursor_visible(False)
self.log_view.set_justification(gtk.JUSTIFY_CENTER)
self.scrolled_window = gtk.ScrolledWindow() # for the log_view
self.scrolled_window.set_policy(gtk.POLICY_AUTOMATIC,
gtk.POLICY_AUTOMATIC)
# Connect log_view and scrolled window
self.scrolled_window.add(self.log_view)
# Insert the log_view into the upper half
self.table.attach(self.scrolled_window, 0, 1, 0, 3)
self.log_view.show()
self.scrolled_window.show()
# 3 tables as overlays with same 15 lines and 6 columns
self.settings_table = gtk.Table (14, 9, True)
self.exstore_table = gtk.Table(14, 9, True)
self.gtk_tree() #-->self.treeview
#@# self.exstore_table.attach(self.treeview, 0, 9, 0, 13)
#@# self.treeview.show()
self.feedback_table = gtk.Table (14, 9, True)
# Insert the 3 tables into the right half of the screen
self.table.attach(self.settings_table, 1, 2, 0, 5)
self.table.attach(self.exstore_table, 1, 2, 0, 5)
self.table.attach(self.feedback_table, 1, 2, 0, 5)
# show all tables, scrolled_window already shown above
self.settings_table_show() # treat uniformly <>!
self.exstore_table.show() # treat uniformly !
self.feedback_table.show() # treat uniformly !
self.table.show() # since all other tables have been inserted
def update_time(self):
minutes, seconds = divmod(self.stopwatch.elapsed, 60)
if(minutes < 10 and seconds < 10):
time = "0" + str(int(minutes)) + ":" + "0" + str(int(seconds))
if(minutes > 9 and seconds > 9):
time = str(int(minutes)) + ":" + str(int(seconds))
if(minutes > 9 and seconds < 10):
time = str(int(minutes)) + ":" + "0" + str(int(seconds))
if(minutes < 10 and seconds > 10):
time = "0" + str(int(minutes)) + ":" + str(int(seconds))
self.stopwatch_label.set_label(time)
self.stopwatch_label.queue_draw()
return True
def settings_table_show(self): # rename to .._permanent
""" Initialize all permanent gui-elements in settings_table. """
# button releasing settings_table and coach.notify('setting-done',..)
self.see_butt = gtk.Button(None, gtk.STOCK_GO_FORWARD)
self.see_butt.connect("clicked", self.release_sett_callback)
#self.settings_table.attach(self.see_butt, 0, 5, 14, 15)
self.settings_table.attach(self.see_butt, 0, 8, 13, 14)
self.see_alignment = self.see_butt.get_children()[0]
self.see_hbox = self.see_alignment.get_children()[0]
self.see_image, self.see_label = self.see_hbox.get_children()
self.see_label.set_label("settings_table")
self.see_butt.show()
# button switching from settings_table to collect_table
self.sec_butt = gtk.Button("")
self.sec_butt.connect("clicked", self.switch_setts_to_coll_callback)
#self.settings_table.attach(self.sec_butt, 5, 6, 14, 15)
self.settings_table.attach(self.sec_butt, 8, 9, 13, 14)
self.sec_alignment = self.sec_butt.get_children()[0]
self.sec_butt.show()
def switch_setts_to_coll_callback(self, widget):
""" Switch from settings_table to exstore_table. """
self.settings_table.hide()
self.exstore_table.show()
def feedback_table_show(self):
"""RENAME to draw_feedback_screen"""
# Section for stopwatch
self.stopwatch = Timer()
self.stopwatch_label = gtk.Label("00:00")
self.stopwatch_label.modify_font(pango.FontDescription("sans 16"))
#self.feedback_table.attach(self.stopwatch_label, 3, 5, 12, 13)
self.feedback_table.attach(self.stopwatch_label, 4, 6, 12, 13)
# Section for nickname
self.name = profile.get_nick_name()
self.name_label = gtk.Label(self.name)
self.name_label.modify_font(pango.FontDescription("sans 16"))
#self.feedback_table.attach(self.name_label, 0, 6, 13, 14)
self.feedback_table.attach(self.name_label, 0, 9, 13, 14)
# Section for progress bar
self.progressbar = gtk.ProgressBar(adjustment=None)
# Color for progress bar
style = self.progressbar.get_style()
style.bg[gtk.STATE_PRELIGHT] = gtk.gdk.color_parse("green")
self.progressbar.set_style (style)
self.progressbar.set_fraction(0)
self.feedback_table.attach(self.progressbar, 0, 9, 8, 9)
# Labels for progress bar
self.progress0 = gtk.Label("0")
self.progress0.modify_font(pango.FontDescription("sans 16"))
self.feedback_table.attach(self.progress0, 0, 1, 9, 10 )
# Labels for status update
self.correct_count = 0
self.correct_counter = gtk.Label(str(self.correct_count))
self.correct_counter.modify_font(pango.FontDescription("sans 16"))
# Ugly code for label color
attr = pango.AttrList()
fg_color = pango.AttrForeground(0, 65535, 0, 0, 6)
attr.insert(fg_color)
self.correct_counter.set_attributes(attr)
#self.feedback_table.attach(self.correct_counter, 2, 4, 9, 10 )
self.feedback_table.attach(self.correct_counter, 3, 5, 9, 10 )
self.false_count = 0
self.false_counter = gtk.Label(str(self.false_count))
self.false_counter.modify_font(pango.FontDescription("sans 16"))
# Ugly code for label color
attr = pango.AttrList()
fg_color = pango.AttrForeground(0, 0, 65535, 0, 6)
attr.insert(fg_color)
self.false_counter.set_attributes(attr)
#self.feedback_table.attach(self.false_counter, 2, 4, 10, 11 )
self.feedback_table.attach(self.false_counter, 3, 5, 10, 11 )
self.stopwatch_label.show()
gobject.timeout_add(1000, self.update_time)
self.name_label.show()
self.progressbar.show()
self.progress0.show()
self.correct_counter.show()
self.false_counter.show()
self.total_calcs = self._ex.count()
self.progress_total = gtk.Label(str(self.total_calcs))
self.progress_total.modify_font(pango.FontDescription("sans 16"))
#self.feedback_table.attach(self.progress_total, 5, 6, 9, 10 )
self.feedback_table.attach(self.progress_total, 8, 9, 9, 10 )
self.progress_total.show()
self.sfb_butt = gtk.Button(None, gtk.STOCK_STOP)
self.sfb_butt.connect("clicked", self.release_feedb_callback)
self.feedback_table.attach(self.sfb_butt, 0, 9, 13, 14)
self.sfb_alignment = self.sfb_butt.get_children()[0]
self.sfb_hbox = self.sfb_alignment.get_children()[0]
self.sfb_image, self.sfb_label = self.sfb_hbox.get_children()
self.sfb_label.set_label("feedback_table")
self.sfb_butt.show()
def feedback_table_hide(self):
self.progressbar.set_fraction(0)
self.stopwatch_label.hide()
self.name_label.hide()
self.progressbar.hide()
self.progress0.hide()
self.correct_counter.hide()
self.false_counter.hide()
self.progress_total.hide()
self.sfb_butt.hide()
def offer_setting(self,ex):
""" Prepare display for update of settings. """
self._ex = ex #WN.LV either drop this or self.current_exercise
self._sett = self._ex.get_setting() #WN.LV make _sett local
self.current_exercise = ex #WN.LV either drop this or self._ex
print('in display.offer_setting, topic=', self._sett['topic'])
self.current_exercise.define_buttons()
self.current_exercise.set_buttons(self._sett)
self.settings_table.show()
def release_feedb_callback(self, widget):
""" """
self.protocol('----------------------------------------', 0, 'OK')
print('in display.release_feedb_callback')
self.calc_table.destroy()
self.feedback_table_hide()
self.exstore_table.show() # from here the next user-interactions
def release_sett_callback(self, widget):
""" Start calcs with these settings (probably updated). """
print('in display.release_sett_callback')
self._co.settings_done(self._ex._sett)
self.settings_table.hide()
#self.exstore_table.hide()
self.feedback_table_show()
def init_calc(self):
"""
prepares for calculations from 1 setting.
for instance, a calculation might be on 1 ore more lines.
"""
print("in display.init_calc")
# make empty lines such that all calcs are entered at bottom
for i in range(1,21):
end_iterator = self.log_buffer.get_end_iter()
self.log_buffer.insert(end_iterator, "\n")
self.log_view.scroll_mark_onscreen(self.log_buffer.get_insert())
def destroy_box(self):
self.calculation_box.destroy()
def protocol(self, full_line, errors, feedback):
end_iterator = self.log_buffer.get_end_iter()
if( feedback == 'OK' ):
self.log_buffer.insert_with_tags_by_name(end_iterator, "\n" + full_line, "correct" )
elif ( feedback == 'XXX' ):
self.log_buffer.insert_with_tags_by_name(end_iterator, "\n" + full_line, "error" )
end_iterator = self.log_buffer.get_end_iter()
mark = self.log_buffer.create_mark(None, end_iterator, True)
self.log_view.scroll_mark_onscreen(mark)
def protocol_generated_calcs(self, calculations, change):
print("DEBUG: in display.protocol_generated_calcs")
end_iterator = self.log_buffer.get_end_iter()
self.log_buffer.insert_with_tags_by_name(end_iterator, "\n---------- " + change + " ----------" , "fixxxme!" )
for c in calculations:
end_iterator = self.log_buffer.get_end_iter()
#['1', '-', '1', '=', '0']
to_format = c[0]
printable_calc = to_format[0] + " " + \
to_format[1] + " " + \
to_format[2] + " " + \
to_format[3] + " " + \
to_format[4]
self.log_buffer.insert_with_tags_by_name(end_iterator, "\n" + printable_calc, "fixxxme!" )
mark = self.log_buffer.create_mark(None, end_iterator, True)
self.log_view.scroll_mark_onscreen(mark)
def input_digit(self, widget, dig, proterr, protok):
"""callback: input a digit and give feedback.
The _only_ other active widget is the <stop>-button on the right"""
entry_text = widget.get_text()
### bitte anzeigen !???????
if(entry_text == dig):
self.errors = 0 #WN090518 ???
self.protocol(protok, self.errors, 'OK')
self.destroy_box()
self._learner.digit_done()
elif(entry_text == ""):
pass #otherwise feedback in protocol written twice: see entry.set_text("") below
else:
self.false_count = self.false_count + 1
self.false_counter.set_text(str(self.false_count))
self.errors = self.errors + 1
widget.set_text("")
self.protocol(proterr, self.errors, 'XXX')
self._learner.calculation_error()
#WN090518
def display_calc(self, lines):
self.calc_table = gtk.Table(5, 1, True)
self.table.attach(self.calc_table, 0, 1, 0, 5)
self.calc_table.show()
"""display the lines of a calc with _ at all input positions"""
lino = 0
for li in lines:
#print('in Display.display_calc, line=', li)
self.create_entryline((lino, -1, 'dummy-dig', 'dummy-proterr', 'dummy-protok', li))
lino = lino + 1
def create_entryline(self, (lineno, linepos, dig, proterr, protok, line)):
"""create gtk.Entry in line at linepos and set callback_input_digit"""
#print('in Display.create_entryline: lineno=', lineno, ', linepos=',
# linepos, ', line=', line)
calculation, cursor = line, linepos
self.calculation_box = gtk.HBox(True, 0)
calc_pos = 0
self.calc_table.attach(self.calculation_box, 0, 1, 3 + lineno, 4 + lineno)
for i in calculation:
if (calc_pos != cursor):
self.label = gtk.Label(i)
self.label.modify_font(pango.FontDescription("sans 24"))
self.calculation_box.pack_start(self.label)
self.label.show()
else: # prepare for input
self.text_entry = gtk.Entry(max = 1)
self.text_entry.modify_font(pango.FontDescription("sans 24"))
self.text_entry.connect("changed", self.input_digit, dig, proterr, protok)
self.calculation_box.pack_start(self.text_entry)
self.text_entry.show()
calc_pos = calc_pos + 1
#?kann m.die calculation_box ZUERST aufbauen und DANN self.table.attach
self.calculation_box.show()
if(cursor != -1):
self.text_entry.grab_focus()
#just add lineno to table.attach
#TODO rename calculation, cursor below ...
#TODO remove hack on callback:
#self.input_digit('widget', dig, protline)
def finish_calc(self):
self.stopwatch.stop()
def show_progress(self):
self.progressbar.set_fraction(self.progressbar.get_fraction()+(float(1)/float(self.total_calcs)))
self.correct_count = self.correct_count + 1
self.correct_counter.set_text(str(self.correct_count))
self.calc_table.destroy()
def offer_coll_to_learner(self, collect):
"""Show the exstore to the learner"""
collect.define_coll_gui() #@#
collect.set_coll_gui(collect) #@# sets callbacks
self.set_coll_to_learner() # set finish_learner_coll_butt + callb
def switch_exercise(self):
""" Another exercise has been selected. """
#WN091215 DAS IST AB JETZT FALSCH: ex<->sett + ex<->coll moeglich
self.settings_table.destroy()
self.settings_table = gtk.Table(14, 9, True)
self.table.attach(self.settings_table, 1, 2, 0, 5)
self.settings_table.show()
self.feedback_table.destroy()
self.feedback_table = gtk.Table(14, 9, True)
self.table.attach(self.feedback_table, 1, 2, 0, 5)
self.feedback_table.show()
def set_select_exerc_semaphore(self, coll_key):
""" Sets a semaphore for finish_collect_callback. """
print('in display.set_select_exerc_semaphore, coll_key', self._coll_key)
self._coll_key = coll_key
def set_coll_to_learner(self):
""" Set the permanent gui-elements for exstore_table. """
print('in display.set_coll_to_learner')
# button switching from collect_table to calcs
self.flc_butt = gtk.Button(None, gtk.STOCK_GO_FORWARD)
self.flc_butt.connect("clicked", self.finish_learner_coll_callback)
self.exstore_table.attach(self.flc_butt, 0, 8, 13, 14)
self.flc_alignment = self.flc_butt.get_children()[0]
self.flc_hbox = self.flc_alignment.get_children()[0]
self.flc_image, self.flc_label = self.flc_hbox.get_children()
self.flc_label.set_label("to calcs")
self.flc_butt.show()
# button switching from collect_table to settings_table
self.sts_butt = gtk.Button("")
self.sts_butt.connect("clicked", self.switch_learner_to_setts)
self.exstore_table.attach(self.sts_butt, 8, 9, 13, 14)
self.sts_alignment = self.sts_butt.get_children()[0]
self.sts_butt.show()
def finish_learner_coll_callback(self, widget):
""" Callback on flc_butt; uses self._coll_key as semaphore
from Collection.select_exerc_callback. """
print('in display.finish_learner_coll_callback, _coll_key=', self._coll_key)
if not(self._coll_key is None):
self._co.exercise_selected(self._coll_key)
self.exstore_table.hide()
self.feedback_table_show()
def switch_learner_to_setts(self, widget):
""" Callback on sts_butt. asks the Coach if allowed. """
self._co.switch_to_settings(self._coll_key)
self.exstore_table.hide()
def set_curr_exerc(self, exerc):
""" self._ex is needed for feedback_table etc. """
self._ex = exerc
def gtk_tree(self):
"""
Define TreeStore and TreeView
"""
self.treestore = gtk.TreeStore(gtk.gdk.Pixbuf, str)
self.treestore.clear()
#self._exstore.fill_store(self.treestore, None, None)
self.treeview = gtk.TreeView(self.treestore)
# create the TreeViewColumn to display the data
self.tvcolumn = gtk.TreeViewColumn('Uebungssammlung')
self.cellpb = gtk.CellRendererPixbuf()
self.tvcolumn.pack_start(self.cellpb, True)
self.tvcolumn.add_attribute(self.cellpb, 'pixbuf', 0)
# create a CellRendererText to render the data
self.cell = gtk.CellRendererText()
# add the cell to the tvcolumn and allow it to expand
self.tvcolumn.pack_start(self.cell, True)
# set the cell "text" attribute to column 0 - retrieve text
# from that column in treestore
self.tvcolumn.add_attribute(self.cell, 'text', 1)
# add tvcolumn to treeview
self.treeview.append_column(self.tvcolumn)
# make it searchable
self.treeview.set_search_column(0)
# Allow sorting on the column
self.tvcolumn.set_sort_column_id(-1)
# ab hier teil von robert
self.treeview.enable_model_drag_source(gtk.gdk.BUTTON1_MASK,
self.TARGETS,
gtk.gdk.ACTION_MOVE)
self.treeview.enable_model_drag_dest(self.TARGETS,
gtk.gdk.ACTION_MOVE)
self.treeview.connect("drag_data_get", self.drag_data_get_data)
self.treeview.connect("drag_data_received",
self.drag_data_received_data)
self.treeview.expand_all()
def drag_data_get_data(self, treeview, context,
selection, target_id, etime):
# selection erfassen und pixbuf in string umwandeln
treeselection = treeview.get_selection()
model, iter = treeselection.get_selected()
# Tupel der die Drag Position angibt
path = self.treestore.get_path(iter)
print "Tree-Element: ", model.get_value(iter, 1)
print "Drag-Position: ", path
self.__from = path
iconstr = (model.get_value(iter, 0)).get_pixels()
title = model.get_value(iter, 1)
sep = "*"
data = iconstr + sep + title
selection.set(selection.target, 8, data)
return
def drag_data_received_data(self, treeview, context, x, y,
selection, info, etime):
treeselection = treeview.get_selection()
model, from_parent = treeselection.get_selected()
model = treeview.get_model()
sep = "*"
data = selection.data
# aus pixel-string wieder pixbuf objekt erstellen
iconpixtemp, sep, title = data.partition(sep)
iconpix = gtk.gdk.pixbuf_new_from_data(
iconpixtemp, gtk.gdk.COLORSPACE_RGB, True, 8, 10, 10, 40)
data = [iconpix, title]
c = Collection(None,None,None,None)
obj = c.get_object(self.__from)
#obj = self.get_object(self.__from)
drop_info = treeview.get_dest_row_at_pos(x, y)
if drop_info:
self.__to = drop_info[0]
c.insert_object(obj, self.__to)
#self.insert_object(obj, self.__to)
self.treestore.clear()
self.fill_store(self.treestore, None, None)
self.treeview.expand_all()
if context.action == gtk.gdk.ACTION_MOVE:
context.finish(True, True, etime)
return
|