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comparison engine/extensions/pychan/dialogs.py @ 205:54bfd1015b35

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* PyChan event handling rework (part I) ** Unified listeners ** ...hopefully more robust attach/detach code. * Added compat, layout and also the new autopsition feature. * Documentation * Minor style fixes in core.
author phoku@33b003aa-7bff-0310-803a-e67f0ece8222
date Sat, 14 Mar 2009 12:13:29 +0000
parents
children 51cc05d862f2
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204:5816ab527da8 205:54bfd1015b35
1 # coding: utf-8
2
3 from pychan import loadXML
4 import pychan.tools
5 import widgets
6 from internal import get_manager, screen_width, screen_height
7 from StringIO import StringIO
8
9 OK,YES,NO,CANCEL = True,True,False,None
10
11 def print_event(**kwargs):
12 print kwargs
13
14 class XMLDialog(object):
15 def __init__(self, xml, ok_field = None, cancel_field = None,initial_data={},data={}):
16 self.gui = loadXML(xml)
17 self.ok_field = ok_field
18 self.cancel_field = cancel_field
19 self.initial_data= initial_data
20 self.data= data
21 self.max_size=None
22 self.min_size=None
23 self.gui.capture(print_event,"mouseEntered")
24
25 def execute(self):
26 self.gui.distributeInitialData(self.initial_data)
27 self.gui.distributeData(self.data)
28
29 screen_w, screen_h = screen_width(), screen_height()
30 if self.max_size is None:
31 self.max_size = screen_w/2, screen_h/3
32 if self.min_size is None:
33 self.min_size = screen_w/2, screen_h/4
34 self.gui.max_size = self.max_size
35 self.gui.min_size = self.min_size
36
37 resultMap = {}
38 if self.gui.findChild(name="okButton"):
39 resultMap["okButton"] = OK
40
41 if self.gui.findChild(name="cancelButton"):
42 resultMap["cancelButton"] = CANCEL
43
44 if self.gui.findChild(name="yesButton"):
45 resultMap["noButton"] = NO
46
47 if self.gui.findChild(name="yesButton"):
48 resultMap["yesButton"] = YES
49
50 ok = self.gui.execute(resultMap)
51 if ok:
52 return self.getOkResult()
53 return self.getCancelResult()
54
55 def getOkResult(self):
56 if self.ok_field:
57 return self.gui.collectData(self.ok_field)
58 return True
59
60 def getCancelResult(self):
61 if self.cancel_field:
62 return self.gui.collectData(self.cancel_field)
63 return False
64
65 MESSAGE_BOX_XML = """\
66 <Window name="window" title="Message">
67 <ScrollArea>
68 <Label wrap_text="1" text="$MESSAGE" name="message" vexpanding="1"/>
69 </ScrollArea>
70 <HBox>
71 <Spacer/><Button min_width="50" name="okButton" text="OK"/>
72 </HBox>
73 </Window>
74 """
75
76 YESNO_BOX_XML = """\
77 <Window name="window" title="Question">
78 <ScrollArea>
79 <Label wrap_text="1" text="$MESSAGE" name="message" vexpanding="1"/>
80 </ScrollArea>
81 <HBox>
82 <Spacer/>
83 <Button min_width="50" name="yesButton" text="Yes"/>
84 <Button min_width="50" name="noButton" text="No"/>
85 </HBox>
86 </Window>
87 """
88
89 YESNOCANCEL_BOX_XML = """\
90 <Window name="window" title="Question">
91 <ScrollArea>
92 <Label wrap_text="1" text="$MESSAGE" name="message" vexpanding="1"/>
93 </ScrollArea>
94 <HBox>
95 <Spacer/>
96 <Button min_width="50" name="yesButton" text="Yes"/>
97 <Button min_width="50" name="noButton" text="No"/>
98 <Button min_width="50" name="cancelButton" text="Cancel"/>
99 </HBox>
100 </Window>
101 """
102
103 SELECT_BOX_XML = """\
104 <Window name="window" title="Select">
105 <Label wrap_text="1" text="$MESSAGE" name="message"/>
106 <ScrollArea>
107 <ListBox name="selection">
108 </ListBox>
109 </ScrollArea>
110 <HBox>
111 <Spacer/>
112 <Button min_width="50" name="okButton" text="Select"/>
113 <Button min_width="50" name="cancelButton" text="Cancel"/>
114 </HBox>
115 </Window>
116 """
117
118 EXCEPTION_CATCHER_XML="""\
119 <Window name="window" title="An exception occurred - what now?">
120 <VBox hexpanding="1">
121 <Label wrap_text="1" max_width="400" text="$MESSAGE" name="message"/>
122 <ScrollArea>
123 <Label text="$MESSAGE" name="traceback"/>
124 </ScrollArea>
125 </VBox>
126 <HBox>
127 <Spacer/>
128 <Button name="yesButton" text="Retry"/>
129 <Button name="noButton" text="Ignore"/>
130 <Button name="cancelButton" text="Reraise"/>
131 </HBox>
132 </Window>
133 """
134
135 def _make_text(message):
136 if callable(message):
137 message = message()
138 if hasattr(message,"read"):
139 message = message.read()
140 return message
141
142 def message(message="",caption="Message"):
143 text = _make_text(message)
144 dialog = XMLDialog(StringIO(MESSAGE_BOX_XML),
145 initial_data={'message':text,'window':caption})
146 dialog.gui.findChild(name="message").max_width = screen_width()/2 - 50
147 dialog.execute()
148
149 def yesNo(message="",caption="Message"):
150 text = _make_text(message)
151 dialog = XMLDialog(StringIO(YESNO_BOX_XML),
152 initial_data={'message':text,'window':caption})
153 dialog.gui.findChild(name="message").max_width = screen_width()/2 - 50
154 return dialog.execute()
155
156 def yesNoCancel(message="",caption="Message"):
157 text = _make_text(message)
158 dialog = XMLDialog(StringIO(YESNOCANCEL_BOX_XML),
159 initial_data={'message':text,'window':caption})
160 dialog.gui.findChild(name="message").max_width = screen_width()/2 - 50
161 return dialog.execute()
162
163 def select(message="",options=[],caption="Message"):
164 text = _make_text(message)
165 dialog = XMLDialog(StringIO(SELECT_BOX_XML),
166 initial_data={'message':text,'window':caption})
167 dialog.size = screen_width()/3, 2*screen_height()/3
168
169 dialog.gui.findChild(name="message").max_width = screen_width()/2 - 50
170 listbox = dialog.gui.findChild(name="selection")
171 listbox.items = options
172 if dialog.execute():
173 return listbox.selected_item
174 return None
175
176 def trace(f):
177 import sys, traceback
178 def new_f(*args,**kwargs):
179 try:
180 return pychan.tools.applyOnlySuitable(f,*args,**kwargs)
181
182 except Exception, e:
183 dialog = XMLDialog(StringIO(EXCEPTION_CATCHER_XML),
184 initial_data={'message':str(e)}
185 )
186 tb = traceback.format_exception(sys.exc_type, sys.exc_value, sys.exc_traceback)
187 dialog.gui.findChild(name="traceback").text = "".join(tb)
188 dialog.min_size = screen_width()/2,3*screen_height()/4
189 dialog.max_size = screen_width()/2,3*screen_height()/4
190 result = dialog.execute()
191 if result == YES:
192 return new_f(*args,**kwargs)
193 elif result == NO:
194 return
195 raise
196 return new_f
197