Mercurial > libervia-backend
annotate frontends/primitivus/custom_widgets.py @ 131:6cad483a6d84
Primitivus: menu is now working
/!\ tooltips not managed yet, doesn't manage properly menu when it's displayed on several rows
/!\ still need to manage other menus (chat menu)
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Wed, 14 Jul 2010 19:36:40 +0800 |
| parents | 2240f34f6452 |
| children | 227394eb080c |
| rev | line source |
|---|---|
| 113 | 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 | |
| 120 | 23 from urwid.escape import utf8decode |
| 113 | 24 |
| 25 class Password(urwid.Edit): | |
|
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26 toto=0 |
| 121 | 27 """Edit box which doesn't show what is entered (show '*' or other char instead)""" |
| 113 | 28 |
| 29 def __init__(self, *args, **kwargs): | |
| 121 | 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 """ | |
| 113 | 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): |
| 121 | 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 |
| 120 | 86 class SurroundedText(urwid.FlowWidget): |
| 121 | 87 """Text centered on a repeated character (like a Divider, but with a text in the center)""" |
| 120 | 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 | |
| 113 | 107 class SelectableText(urwid.FlowWidget): |
| 120 | 108 """Text which can be selected with space""" |
| 113 | 109 signals = ['change'] |
| 110 | |
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111 def __init__(self, text, align='left', header='', select_attr=None, default_attr=None, selected = False, data=None): |
| 113 | 112 self.text=unicode(text) |
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113 self.header=header |
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114 if data: |
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115 self.data=data |
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116 if select_attr: |
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117 self.selected = select_attr |
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118 if default_attr: |
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119 self.default = default_attr |
| 113 | 120 self.align = align |
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121 self.__selected=selected |
| 113 | 122 |
| 123 def getValue(self): | |
| 124 return self.text | |
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125 |
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126 def setAttribute(self, name, value): |
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127 """Change attribut used for rendering widget |
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128 @param name: one of |
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129 -default: when not selected |
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130 -selected: when selected |
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131 @param value: name of the attribute |
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132 /!\ the attribute name followed by _focus is used when widget has focus""" |
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133 assert name in ['default', 'selected'] |
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134 self.__setattr__(name,value) |
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135 self._invalidate() |
| 113 | 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() |
| 113 | 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): | |
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166 try: |
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167 select_attr = self.selected |
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168 except AttributeError: |
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169 select_attr = 'selected' |
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170 try: |
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171 default_attr = self.default |
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172 except AttributeError: |
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173 default_attr = 'default' |
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174 attr = select_attr if self.__selected else default_attr |
| 113 | 175 if focus: |
| 176 attr+="_focus" | |
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177 return urwid.Text((attr,self.header+self.text), align=self.align) |
| 113 | 178 |
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179 class ClickableText(SelectableText): |
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180 signals = SelectableText.signals + ['click'] |
| 124 | 181 |
| 182 def setState(self, selected, invisible=False): | |
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183 self._emit('click') |
| 124 | 184 |
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185 class GenericList(urwid.WidgetWrap): |
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186 signals = ['click','change'] |
| 113 | 187 |
| 124 | 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 """ |
| 113 | 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 |
| 113 | 203 self.align = align |
| 124 | 204 self.option_type = option_type |
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205 self.first_display = True |
| 113 | 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) |
| 113 | 212 |
| 114 | 213 self.content = urwid.SimpleListWalker([]) |
| 113 | 214 self.list_box = urwid.ListBox(self.content) |
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215 urwid.WidgetWrap.__init__(self, self.list_box) |
| 114 | 216 self.changeValues(options) |
| 113 | 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: |
| 113 | 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: |
| 113 | 225 self.unselectAll(invisible=True) |
| 226 widget.setState(True, invisible=True) | |
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227 self._emit("click") |
| 113 | 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): |
| 114 | 246 """Convenience method to get the value selected as a string in single mode, or None""" |
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247 values = self.getSelectedValues() |
| 114 | 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""" |
| 113 | 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 |
| 113 | 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: |
| 124 | 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) |
| 124 | 275 try: |
| 276 urwid.connect_signal(widget, 'change', self.__onStateChange) | |
| 277 except NameError: | |
| 278 pass #the widget given doesn't support 'change' signal | |
| 113 | 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: |
| 114 | 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 |
| 113 | 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: |
| 113 | 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 |
| 124 | 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]) |
| 120 | 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 |
| 131 | 345 class MenuBox(urwid.WidgetWrap): |
| 346 signals = ['click'] | |
| 347 | |
| 348 def __init__(self,parent,items): | |
| 349 self.parent = parent | |
| 350 self.selected = None | |
| 351 content = urwid.SimpleListWalker([ClickableText(text,default_attr='menuitem') for text in items]) | |
| 352 for wid in content: | |
| 353 urwid.connect_signal(wid, 'click', self.onClick) | |
| 354 | |
| 355 self.listBox = urwid.ListBox(content) | |
| 356 menubox = urwid.LineBox(urwid.BoxAdapter(self.listBox,len(items))) | |
| 357 urwid.WidgetWrap.__init__(self,menubox) | |
| 358 | |
| 359 def getValue(self): | |
| 360 return self.selected | |
| 361 | |
| 362 def keypress(self, size, key): | |
| 363 if key=='up': | |
| 364 if self.listBox.get_focus()[1] == 0: | |
| 365 self.parent.keypress(size, key) | |
| 366 elif key=='left' or key=='right': | |
| 367 self.parent.keypress(size,'up') | |
| 368 self.parent.keypress(size,key) | |
| 369 return super(MenuBox,self).keypress(size,key) | |
| 370 | |
| 371 def onClick(self, wid): | |
| 372 self.selected = wid.getValue() | |
| 373 self._emit('click') | |
| 374 | |
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375 class Menu(urwid.FlowWidget): |
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376 |
| 131 | 377 def __init__(self,loop): |
|
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378 super(Menu, self).__init__() |
| 131 | 379 self.loop = loop |
| 380 self.menu_keys = [] | |
| 381 self.menu = {} | |
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382 self.shortcuts = {} #keyboard shortcuts |
| 131 | 383 self.focus_menu = 0 |
| 384 self.save_bottom = None | |
| 385 | |
| 386 def selectable(self): | |
| 387 return True | |
| 388 | |
| 389 def __buildOverlay(self,menu_key,columns): | |
| 390 """Build the overlay menu which show menuitems | |
| 391 @param menu_key: name of the category | |
| 392 @colums: column number where the menubox must be displayed""" | |
| 393 max_len = 0 | |
| 394 for item in self.menu[menu_key]: | |
| 395 if len(item[0]) > max_len: | |
| 396 max_len = len(item[0]) | |
| 397 | |
| 398 self.save_bottom = self.loop.widget | |
| 399 menu_box = MenuBox(self,[item[0] for item in self.menu[menu_key]]) | |
| 400 urwid.connect_signal(menu_box, 'click', self.onClick) | |
| 401 | |
| 402 self.loop.widget = urwid.Overlay(urwid.AttrMap(menu_box,'menubar'),self.save_bottom,('fixed left', columns),max_len+2,('fixed top',1),None) | |
| 403 | |
| 404 def keypress(self, size, key): | |
| 405 if key == 'right' and self.focus_menu < len(self.menu)-1: | |
| 406 self.focus_menu += 1 | |
| 407 self._invalidate() | |
| 408 elif key == 'left' and self.focus_menu > 0: | |
| 409 self.focus_menu -= 1 | |
| 410 self._invalidate() | |
| 411 elif key == 'down': | |
| 412 if not self.save_bottom: | |
| 413 column = sum([len(menu)+4 for menu in self.menu_keys[0:self.focus_menu]],self.focus_menu+1) | |
| 414 self.__buildOverlay(self.menu_keys[self.focus_menu],column) | |
| 415 elif key == 'up': | |
| 416 if self.save_bottom: | |
| 417 self.loop.widget = self.save_bottom | |
| 418 self.save_bottom = None | |
| 419 | |
| 420 return key | |
|
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421 |
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422 def checkShortcuts(self, key): |
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423 for shortcut in self.shortcuts.keys(): |
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424 if key == shortcut: |
| 131 | 425 category, item, callback = self.shortcuts[shortcut] |
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426 callback((category, item)) |
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427 return key |
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428 |
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429 def addMenu(self, category, item, callback, shortcut=None): |
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430 """Add a menu item, create the category if new |
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431 @param category: category of the menu (e.g. File/Edit) |
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432 @param item: menu item (e.g. new/close/about) |
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433 @callback: method to call when item is selected""" |
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434 if not category in self.menu.keys(): |
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435 self.menu_keys.append(category) |
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436 self.menu[category] = [] |
| 131 | 437 self.menu[category].append((item, callback)) |
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438 if shortcut: |
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439 assert(shortcut not in self.shortcuts.keys()) |
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440 self.shortcuts[shortcut] = (category, item, callback) |
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441 |
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442 def rows(self,size,focus=False): |
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443 return self.display_widget(size, focus).rows(size, focus) |
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444 |
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445 def render(self, size, focus=False): |
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446 return self.display_widget(size, focus).render(size, focus) |
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447 |
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448 def display_widget(self, size, focus): |
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449 render_txt = [] |
| 131 | 450 idx = 0 |
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451 for menu in self.menu_keys: |
| 131 | 452 if focus and idx == self.focus_menu: |
| 453 render_txt.append(('selected_menu', '[ %s ]' % menu)) | |
| 454 render_txt.append(' ') | |
| 455 else: | |
| 456 render_txt.append('[ %s ] ' % menu) | |
| 457 idx += 1 | |
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458 return urwid.AttrMap(urwid.Text(render_txt), 'menubar') |
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459 |
| 131 | 460 def onClick(self, widget): |
| 461 category = self.menu_keys[self.focus_menu] | |
| 462 item = widget.getValue() | |
| 463 for menu_item in self.menu[category]: | |
| 464 if item == menu_item[0]: | |
| 465 callback = menu_item[1] | |
| 466 break | |
| 467 if callback: | |
| 468 self.keypress(None,'up') | |
| 469 callback((category, item)) | |
| 470 | |
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471 |
| 120 | 472 ## DIALOGS ## |
| 473 | |
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474 class GenericDialog(urwid.WidgetWrap): |
| 113 | 475 |
| 476 def __init__(self, widgets_lst, title, style=[], **kwargs): | |
| 477 frame_header = urwid.AttrMap(urwid.Text(title,'center'),'title') | |
| 478 | |
| 479 buttons = None | |
| 480 | |
| 481 if "OK/CANCEL" in style: | |
| 482 buttons = [urwid.Button(_("Cancel"), kwargs['cancel_cb']), | |
| 483 urwid.Button(_("Ok"), kwargs['ok_cb'], kwargs['ok_value'])] | |
| 484 elif "YES/NO" in style: | |
| 485 buttons = [urwid.Button(_("Yes"), kwargs['yes_cb']), | |
| 486 urwid.Button(_("No"), kwargs['no_cb'], kwargs['yes_value'])] | |
| 114 | 487 if "OK" in style: |
| 488 buttons = [urwid.Button(_("Ok"), kwargs['ok_cb'], kwargs['ok_value'])] | |
| 113 | 489 if buttons: |
| 490 buttons_flow = urwid.GridFlow(buttons, max([len(button.get_label()) for button in buttons])+4, 1, 1, 'center') | |
| 491 widgets_lst.append(buttons_flow) | |
| 492 body_content = urwid.SimpleListWalker(widgets_lst) | |
| 493 frame_body = urwid.ListBox(body_content) | |
| 494 frame = urwid.Frame(frame_body, frame_header) | |
| 495 decorated_frame = urwid.LineBox(frame) | |
| 496 urwid.WidgetWrap.__init__(self, decorated_frame) | |
| 497 | |
| 498 | |
| 499 | |
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500 class InputDialog(GenericDialog): |
| 121 | 501 """Dialog with an edit box""" |
| 113 | 502 |
| 120 | 503 def __init__(self, title, instrucions, style=['OK/CANCEL'], default_txt = '', **kwargs): |
| 113 | 504 instr_wid = urwid.Text(instrucions+':') |
| 120 | 505 edit_box = urwid.Edit(edit_text=default_txt) |
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506 GenericDialog.__init__(self, [instr_wid,edit_box], title, style, ok_value=edit_box, **kwargs) |
| 113 | 507 |
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508 class ConfirmDialog(GenericDialog): |
| 121 | 509 """Dialog with buttons for confirm or cancel an action""" |
| 113 | 510 |
| 511 def __init__(self, title, style=['YES/NO'], **kwargs): | |
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512 GenericDialog.__init__(self, [], title, style, yes_value=None, **kwargs) |
| 114 | 513 |
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514 class Alert(GenericDialog): |
| 121 | 515 """Dialog with just a message and a OK button""" |
| 114 | 516 |
| 517 def __init__(self, title, message, style=['OK'], **kwargs): | |
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518 GenericDialog.__init__(self, [urwid.Text(message, 'center')], title, style, ok_value=None, **kwargs) |
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519 |
| 120 | 520 ## CONTAINERS ## |
| 521 | |
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522 class FocusFrame(urwid.Frame): |
| 121 | 523 """Frame which manage 'tab' key""" |
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524 |
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525 def keypress(self, size, key): |
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526 if key == 'tab': |
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527 focus_list = ('header','body','footer') |
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528 focus_idx = focus_list.index(self.focus_part) |
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529 for i in range(2): |
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530 focus_idx = (focus_idx + 1) % len(focus_list) |
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531 focus_name = focus_list[focus_idx] |
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532 widget = getattr(self,'_'+focus_name) |
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533 if widget!=None and widget.selectable(): |
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534 self.set_focus(focus_name) |
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535 |
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536 return urwid.Frame.keypress(self, size, key) |
| 120 | 537 |
| 538 ## DECORATORS ## | |
| 539 class LabelLine(urwid.LineBox): | |
| 121 | 540 """Like LineBox, but with a Label centered in the top line""" |
| 120 | 541 |
| 542 def __init__(self, original_widget, label_widget): | |
| 543 urwid.LineBox.__init__(self, original_widget) | |
| 544 top_columns = self._w.widget_list[0] | |
| 545 top_columns.widget_list[1] = label_widget | |
| 124 | 546 |
| 547 class VerticalSeparator(urwid.WidgetDecoration, urwid.WidgetWrap): | |
| 548 def __init__(self, original_widget, left_char = utf8decode("│"), right_char = ''): | |
| 549 """Draw a separator on left and/or of original_widget.""" | |
| 120 | 550 |
| 124 | 551 widgets = [original_widget] |
| 552 if left_char: | |
| 553 widgets.insert(0, ('fixed', 1, urwid.SolidFill(left_char))) | |
| 554 if right_char: | |
| 555 widgets.append(('fixed', 1, urwid.SolidFill(right_char))) | |
| 556 columns = urwid.Columns(widgets, box_columns = [0,2], focus_column = 1) | |
| 557 urwid.WidgetDecoration.__init__(self, original_widget) | |
| 558 urwid.WidgetWrap.__init__(self, columns) | |
| 559 | |
| 560 |