Mercurial > urwid-satext
annotate frontends/primitivus/custom_widgets.py @ 10:024b79b61a31
Primitivus: misc fixes + menubar first draft
- Menu bar: first draft of class
- Password widget fixed
- change some str to unicode, notably for JID
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Tue, 13 Jul 2010 02:24:59 +0800 |
| parents | 6650747dfdcb |
| children | 983840425a55 |
| rev | line source |
|---|---|
| 0 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 """ | |
| 5 Primitivus: a SAT frontend | |
| 6 Copyright (C) 2009, 2010 Jérôme Poisson (goffi@goffi.org) | |
| 7 | |
| 8 This program is free software: you can redistribute it and/or modify | |
| 9 it under the terms of the GNU General Public License as published by | |
| 10 the Free Software Foundation, either version 3 of the License, or | |
| 11 (at your option) any later version. | |
| 12 | |
| 13 This program is distributed in the hope that it will be useful, | |
| 14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 GNU General Public License for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 20 """ | |
| 21 | |
| 22 import urwid | |
| 6 | 23 from urwid.escape import utf8decode |
| 0 | 24 |
| 25 class Password(urwid.Edit): | |
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26 toto=0 |
| 7 | 27 """Edit box which doesn't show what is entered (show '*' or other char instead)""" |
| 0 | 28 |
| 29 def __init__(self, *args, **kwargs): | |
| 7 | 30 """Same args than Edit.__init__ with an additional keyword arg 'hidden_char' |
| 31 @param hidden_char: char to show instead of what is actually entered: default '*' | |
| 32 """ | |
| 0 | 33 self.hidden_char=kwargs['hidden_char'] if kwargs.has_key('hidden_char') else '*' |
| 34 self.__real_text='' | |
| 35 super(Password, self).__init__(*args, **kwargs) | |
| 36 | |
| 37 def set_edit_text(self, text): | |
| 38 self.__real_text = text | |
| 39 hidden_txt = len(text)*'*' | |
| 40 super(Password, self).set_edit_text(hidden_txt) | |
| 41 | |
| 42 def get_edit_text(self): | |
| 43 return self.__real_text | |
| 44 | |
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45 def insert_text(self, text): |
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46 self._edit_text = self.__real_text |
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47 super(Password,self).insert_text(text) |
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48 |
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49 def render(self, size, focus=False): |
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50 Password.toto+=1 |
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51 if Password.toto==30: |
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52 import os,pdb |
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53 os.system('reset') |
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54 pdb.set_trace() |
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55 return super(Password, self).render(size, focus) |
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56 |
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57 class AdvancedEdit(urwid.Edit): |
| 7 | 58 """Edit box with some custom improvments |
| 59 new chars: | |
| 60 - C-a: like 'home' | |
| 61 - C-e: like 'end' | |
| 62 - C-k: remove everything on the right of the cursor | |
| 63 - C-w: remove the word on the back | |
| 64 new behaviour: emit a 'click' signal when enter is pressed""" | |
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65 signals = urwid.Edit.signals + ['click'] |
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66 |
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67 def keypress(self, size, key): |
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68 #TODO: insert mode is not managed yet |
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69 if key == 'ctrl a': |
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70 key = 'home' |
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71 elif key == 'ctrl e': |
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72 key = 'end' |
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73 elif key == 'ctrl k': |
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74 self._delete_highlighted() |
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75 self.set_edit_text(self.edit_text[:self.edit_pos]) |
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76 elif key == 'ctrl w': |
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77 before = self.edit_text[:self.edit_pos] |
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78 pos = before.rstrip().rfind(" ")+1 |
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79 self.set_edit_text(before[:pos] + self.edit_text[self.edit_pos:]) |
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80 self.set_edit_pos(pos) |
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81 elif key == 'enter': |
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82 self._emit('click') |
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83 return super(AdvancedEdit, self).keypress(size, key) |
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84 |
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85 |
| 6 | 86 class SurroundedText(urwid.FlowWidget): |
| 7 | 87 """Text centered on a repeated character (like a Divider, but with a text in the center)""" |
| 6 | 88 |
| 89 def __init__(self,text,car=utf8decode('─')): | |
| 90 self.text=text | |
| 91 self.car=car | |
| 92 | |
| 93 def rows(self,size,focus=False): | |
| 94 return self.display_widget(size, focus).rows(size, focus) | |
| 95 | |
| 96 def render(self, size, focus=False): | |
| 97 return self.display_widget(size, focus).render(size, focus) | |
| 98 | |
| 99 def display_widget(self, size, focus): | |
| 100 (maxcol,) = size | |
| 101 middle = (maxcol-len(self.text))/2 | |
| 102 render_text = middle * self.car + self.text + (maxcol - len(self.text) - middle) * self.car | |
| 103 return urwid.Text(render_text) | |
| 104 | |
| 105 | |
| 106 | |
| 0 | 107 class SelectableText(urwid.FlowWidget): |
| 6 | 108 """Text which can be selected with space""" |
| 0 | 109 signals = ['change'] |
| 110 | |
| 9 | 111 def __init__(self, text, align='left', header='', select_attr=None, default_attr=None, selected = False, data=None): |
| 0 | 112 self.text=unicode(text) |
| 9 | 113 self.header=header |
| 114 if data: | |
| 115 self.data=data | |
| 116 if select_attr: | |
| 117 self.selected = select_attr | |
| 118 if default_attr: | |
| 119 self.default = default_attr | |
| 0 | 120 self.align = align |
| 9 | 121 self.__selected=selected |
| 0 | 122 |
| 123 def getValue(self): | |
| 124 return self.text | |
| 9 | 125 |
| 126 def setAttribute(self, name, value): | |
| 127 """Change attribut used for rendering widget | |
| 128 @param name: one of | |
| 129 -default: when not selected | |
| 130 -selected: when selected | |
| 131 @param value: name of the attribute | |
| 132 /!\ the attribute name followed by _focus is used when widget has focus""" | |
| 133 assert name in ['default', 'selected'] | |
| 134 self.__setattr__(name,value) | |
| 135 self._invalidate() | |
| 0 | 136 |
| 137 def setState(self, selected, invisible=False): | |
| 138 """Change state | |
| 139 @param selected: boolean state value | |
| 140 @param invisible: don't emit change signal if True""" | |
| 141 assert(type(selected)==bool) | |
| 142 self.__selected=selected | |
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143 self._invalidate() |
| 0 | 144 if not invisible: |
| 145 self._emit("change", self.__selected) | |
| 146 | |
| 147 def getState(self): | |
| 148 return self.__selected | |
| 149 | |
| 150 def selectable(self): | |
| 151 return True | |
| 152 | |
| 153 def keypress(self, size, key): | |
| 154 if key==' ' or key=='enter': | |
| 155 self.setState(not self.__selected) | |
| 156 else: | |
| 157 return key | |
| 158 | |
| 159 def rows(self,size,focus=False): | |
| 160 return self.display_widget(size, focus).rows(size, focus) | |
| 161 | |
| 162 def render(self, size, focus=False): | |
| 163 return self.display_widget(size, focus).render(size, focus) | |
| 164 | |
| 165 def display_widget(self, size, focus): | |
| 9 | 166 try: |
| 167 select_attr = self.selected | |
| 168 except AttributeError: | |
| 169 select_attr = 'selected' | |
| 170 try: | |
| 171 default_attr = self.default | |
| 172 except AttributeError: | |
| 173 default_attr = 'default' | |
| 174 attr = select_attr if self.__selected else default_attr | |
| 0 | 175 if focus: |
| 176 attr+="_focus" | |
| 9 | 177 return urwid.Text((attr,self.header+self.text), align=self.align) |
| 0 | 178 |
| 9 | 179 class ClickableText(SelectableText): |
| 180 signals = SelectableText.signals + ['click'] | |
| 8 | 181 |
| 182 def setState(self, selected, invisible=False): | |
| 9 | 183 self._emit('click') |
| 8 | 184 |
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185 class GenericList(urwid.WidgetWrap): |
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186 signals = ['click','change'] |
| 0 | 187 |
| 8 | 188 def __init__(self, options, style=[], align='left', option_type = SelectableText, on_click=None, on_change=None, user_data=None): |
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189 """ |
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190 Widget managing list of string and their selection |
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191 @param options: list of strings used for options |
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192 @param style: list of string: |
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193 - 'single' if only one must be selected |
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194 - 'no_first_select' nothing selected when list is first displayed |
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195 - 'can_select_none' if we can select nothing |
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196 @param align: alignement of text inside the list |
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197 @param on_click: method called when click signal is emited |
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198 @param user_data: data sent to the callback for click signal |
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199 """ |
| 0 | 200 self.single = 'single' in style |
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201 self.no_first_select = 'no_first_select' in style |
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202 self.can_select_none = 'can_select_none' in style |
| 0 | 203 self.align = align |
| 8 | 204 self.option_type = option_type |
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205 self.first_display = True |
| 0 | 206 |
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207 if on_click: |
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208 urwid.connect_signal(self, 'click', on_click, user_data) |
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209 |
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210 if on_change: |
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211 urwid.connect_signal(self, 'change', on_change, user_data) |
| 0 | 212 |
| 1 | 213 self.content = urwid.SimpleListWalker([]) |
| 0 | 214 self.list_box = urwid.ListBox(self.content) |
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215 urwid.WidgetWrap.__init__(self, self.list_box) |
| 1 | 216 self.changeValues(options) |
| 0 | 217 |
| 218 def __onStateChange(self, widget, selected): | |
| 219 if self.single: | |
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220 if not selected and not self.can_select_none: |
| 0 | 221 #if in single mode, it's forbidden to unselect a value |
| 222 widget.setState(True, invisible=True) | |
| 223 return | |
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224 if selected: |
| 0 | 225 self.unselectAll(invisible=True) |
| 226 widget.setState(True, invisible=True) | |
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227 self._emit("click") |
| 0 | 228 |
| 229 | |
| 230 def unselectAll(self, invisible=False): | |
| 231 for widget in self.content: | |
| 232 if widget.getState(): | |
| 233 widget.setState(False, invisible) | |
| 234 widget._invalidate() | |
| 235 | |
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236 def deleteValue(self, value): |
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237 """Delete the first value equal to the param given""" |
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238 for widget in self.content: |
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239 if widget.getValue() == value: |
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240 self.content.remove(widget) |
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241 self._emit('change') |
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242 return |
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243 raise ValueError("%s ==> %s" % (str(value),str(self.content))) |
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244 |
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245 def getSelectedValue(self): |
| 1 | 246 """Convenience method to get the value selected as a string in single mode, or None""" |
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247 values = self.getSelectedValues() |
| 1 | 248 return values[0] if values else None |
| 249 | |
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250 def getAllValues(self): |
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251 """Return values of all items""" |
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252 return [widget.getValue() for widget in self.content] |
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253 |
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254 def getSelectedValues(self): |
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255 """Return values of selected items""" |
| 0 | 256 result = [] |
| 257 for widget in self.content: | |
| 258 if widget.getState(): | |
| 259 result.append(widget.getValue()) | |
| 260 return result | |
| 261 | |
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262 def getDisplayWidget(self): |
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263 return self.list_box |
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264 |
| 0 | 265 def changeValues(self, new_values): |
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266 """Change all value in one shot""" |
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267 if not self.first_display: |
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268 old_selected = self.getSelectedValues() |
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269 widgets = [] |
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270 for option in new_values: |
| 8 | 271 widget = self.option_type(option, self.align) |
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272 if not self.first_display and option in old_selected: |
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273 widget.setState(True) |
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274 widgets.append(widget) |
| 8 | 275 try: |
| 276 urwid.connect_signal(widget, 'change', self.__onStateChange) | |
| 277 except NameError: | |
| 278 pass #the widget given doesn't support 'change' signal | |
| 0 | 279 self.content[:] = widgets |
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280 if self.first_display and self.single and new_values and not self.no_first_select: |
| 1 | 281 self.content[0].setState(True) |
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282 display_widget = self.getDisplayWidget() |
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283 self._set_w(display_widget) |
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284 self._emit('change') |
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285 self.first_display = False |
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286 |
| 0 | 287 def selectValue(self, value): |
| 288 self.unselectAll() | |
| 289 idx = 0 | |
| 290 for widget in self.content: | |
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291 if widget.getSelectedValue() == value: |
| 0 | 292 widget.setState(True) |
| 293 self.list_box.set_focus(idx) | |
| 294 return | |
| 295 idx+=1 | |
| 296 | |
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297 class List(urwid.FlowWidget): |
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298 """FlowWidget list, same arguments as GenericList, with an additional one 'max_height'""" |
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299 signals = ['click','change'] |
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300 |
| 8 | 301 def __init__(self, options, style=[], max_height=5, align='left', option_type = SelectableText, on_click=None, on_change=None, user_data=None): |
| 302 self.genericList = GenericList(options, style, align, option_type, on_click, on_change, user_data) | |
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303 self.max_height = max_height |
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304 |
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305 def selectable(self): |
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306 return True |
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307 |
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308 def keypress(self, size, key): |
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309 return self.displayWidget(size,True).keypress(size, key) |
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310 |
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311 def unselectAll(self, invisible=False): |
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312 return self.genericList.unselectAll(invisible) |
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313 |
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314 def deleteValue(self, value): |
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315 return self.genericList.deleteValue(value) |
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316 |
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317 def getSelectedValue(self): |
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318 return self.genericList.getSelectedValue() |
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319 |
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320 def getAllValues(self): |
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321 return self.genericList.getAllValues() |
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322 |
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323 def getSelectedValues(self): |
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324 return self.genericList.getSelectedValues() |
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325 |
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326 def changeValues(self, new_values): |
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327 return self.genericList.changeValues(new_values) |
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328 |
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329 def selectValue(self, value): |
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330 return self.genericList.selectValue(value) |
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331 |
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332 def render(self, size, focus=False): |
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333 return self.displayWidget(size, focus).render(size, focus) |
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334 |
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335 def rows(self, size, focus=False): |
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336 return self.displayWidget(size, focus).rows(size, focus) |
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337 |
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338 def displayWidget(self, size, focus): |
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339 list_size = sum([wid.rows(size, focus) for wid in self.genericList.content]) |
| 6 | 340 height = min(list_size,self.max_height) or 1 |
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341 return urwid.BoxAdapter(self.genericList, height) |
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342 |
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343 ## MISC ## |
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344 |
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345 class Menu(urwid.FlowWidget): |
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346 |
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347 def __init__(self): |
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348 super(Menu, self).__init__() |
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349 self.menu_keys = ['test'] |
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350 self.menu = {'test':[('top',None)]} |
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351 self.shortcuts = {} #keyboard shortcuts |
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352 |
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353 def checkShortcuts(self, key): |
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354 for shortcut in self.shortcuts.keys(): |
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355 if key == shortcut: |
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356 category, item, callback = self.shortcuts[shortcuts] |
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357 callback((category, item)) |
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358 return key |
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359 |
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360 def addMenu(self, category, item, callback, shortcut=None): |
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361 """Add a menu item, create the category if new |
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362 @param category: category of the menu (e.g. File/Edit) |
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363 @param item: menu item (e.g. new/close/about) |
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364 @callback: method to call when item is selected""" |
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365 if not category in self.menu.keys(): |
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366 self.menu_keys.append(category) |
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367 self.menu[category] = [] |
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368 self.menu[category].append[(item, callback)] |
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369 if shortcut: |
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370 assert(shortcut not in self.shortcuts.keys()) |
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371 self.shortcuts[shortcut] = (category, item, callback) |
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372 |
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373 def rows(self,size,focus=False): |
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374 return self.display_widget(size, focus).rows(size, focus) |
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375 |
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376 def render(self, size, focus=False): |
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377 return self.display_widget(size, focus).render(size, focus) |
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378 |
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379 def display_widget(self, size, focus): |
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380 render_txt = [] |
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381 for menu in self.menu_keys: |
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382 render_txt.append('[ %s ] ' % menu) |
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383 return urwid.AttrMap(urwid.Text(render_txt), 'menubar') |
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384 |
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385 |
| 6 | 386 ## DIALOGS ## |
| 387 | |
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388 class GenericDialog(urwid.WidgetWrap): |
| 0 | 389 |
| 390 def __init__(self, widgets_lst, title, style=[], **kwargs): | |
| 391 frame_header = urwid.AttrMap(urwid.Text(title,'center'),'title') | |
| 392 | |
| 393 buttons = None | |
| 394 | |
| 395 if "OK/CANCEL" in style: | |
| 396 buttons = [urwid.Button(_("Cancel"), kwargs['cancel_cb']), | |
| 397 urwid.Button(_("Ok"), kwargs['ok_cb'], kwargs['ok_value'])] | |
| 398 elif "YES/NO" in style: | |
| 399 buttons = [urwid.Button(_("Yes"), kwargs['yes_cb']), | |
| 400 urwid.Button(_("No"), kwargs['no_cb'], kwargs['yes_value'])] | |
| 1 | 401 if "OK" in style: |
| 402 buttons = [urwid.Button(_("Ok"), kwargs['ok_cb'], kwargs['ok_value'])] | |
| 0 | 403 if buttons: |
| 404 buttons_flow = urwid.GridFlow(buttons, max([len(button.get_label()) for button in buttons])+4, 1, 1, 'center') | |
| 405 widgets_lst.append(buttons_flow) | |
| 406 body_content = urwid.SimpleListWalker(widgets_lst) | |
| 407 frame_body = urwid.ListBox(body_content) | |
| 408 frame = urwid.Frame(frame_body, frame_header) | |
| 409 decorated_frame = urwid.LineBox(frame) | |
| 410 urwid.WidgetWrap.__init__(self, decorated_frame) | |
| 411 | |
| 412 | |
| 413 | |
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414 class InputDialog(GenericDialog): |
| 7 | 415 """Dialog with an edit box""" |
| 0 | 416 |
| 6 | 417 def __init__(self, title, instrucions, style=['OK/CANCEL'], default_txt = '', **kwargs): |
| 0 | 418 instr_wid = urwid.Text(instrucions+':') |
| 6 | 419 edit_box = urwid.Edit(edit_text=default_txt) |
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420 GenericDialog.__init__(self, [instr_wid,edit_box], title, style, ok_value=edit_box, **kwargs) |
| 0 | 421 |
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422 class ConfirmDialog(GenericDialog): |
| 7 | 423 """Dialog with buttons for confirm or cancel an action""" |
| 0 | 424 |
| 425 def __init__(self, title, style=['YES/NO'], **kwargs): | |
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426 GenericDialog.__init__(self, [], title, style, yes_value=None, **kwargs) |
| 1 | 427 |
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428 class Alert(GenericDialog): |
| 7 | 429 """Dialog with just a message and a OK button""" |
| 1 | 430 |
| 431 def __init__(self, title, message, style=['OK'], **kwargs): | |
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432 GenericDialog.__init__(self, [urwid.Text(message, 'center')], title, style, ok_value=None, **kwargs) |
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433 |
| 6 | 434 ## CONTAINERS ## |
| 435 | |
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436 class FocusFrame(urwid.Frame): |
| 7 | 437 """Frame which manage 'tab' key""" |
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438 |
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439 def keypress(self, size, key): |
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440 if key == 'tab': |
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441 focus_list = ('header','body','footer') |
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442 focus_idx = focus_list.index(self.focus_part) |
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443 for i in range(2): |
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444 focus_idx = (focus_idx + 1) % len(focus_list) |
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445 focus_name = focus_list[focus_idx] |
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446 widget = getattr(self,'_'+focus_name) |
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447 if widget!=None and widget.selectable(): |
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448 self.set_focus(focus_name) |
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449 |
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450 return urwid.Frame.keypress(self, size, key) |
| 6 | 451 |
| 452 ## DECORATORS ## | |
| 453 class LabelLine(urwid.LineBox): | |
| 7 | 454 """Like LineBox, but with a Label centered in the top line""" |
| 6 | 455 |
| 456 def __init__(self, original_widget, label_widget): | |
| 457 urwid.LineBox.__init__(self, original_widget) | |
| 458 top_columns = self._w.widget_list[0] | |
| 459 top_columns.widget_list[1] = label_widget | |
| 8 | 460 |
| 461 class VerticalSeparator(urwid.WidgetDecoration, urwid.WidgetWrap): | |
| 462 def __init__(self, original_widget, left_char = utf8decode("│"), right_char = ''): | |
| 463 """Draw a separator on left and/or of original_widget.""" | |
| 6 | 464 |
| 8 | 465 widgets = [original_widget] |
| 466 if left_char: | |
| 467 widgets.insert(0, ('fixed', 1, urwid.SolidFill(left_char))) | |
| 468 if right_char: | |
| 469 widgets.append(('fixed', 1, urwid.SolidFill(right_char))) | |
| 470 columns = urwid.Columns(widgets, box_columns = [0,2], focus_column = 1) | |
| 471 urwid.WidgetDecoration.__init__(self, original_widget) | |
| 472 urwid.WidgetWrap.__init__(self, columns) | |
| 473 | |
| 474 |