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1 '''Define SearchDialogBase used by Search, Replace, and Grep dialogs.'''
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2
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3 from tkinter import Toplevel
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4 from tkinter.ttk import Frame, Entry, Label, Button, Checkbutton, Radiobutton
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5
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6
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7 class SearchDialogBase:
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8 '''Create most of a 3 or 4 row, 3 column search dialog.
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9
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10 The left and wide middle column contain:
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11 1 or 2 labeled text entry lines (make_entry, create_entries);
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12 a row of standard Checkbuttons (make_frame, create_option_buttons),
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13 each of which corresponds to a search engine Variable;
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14 a row of dialog-specific Check/Radiobuttons (create_other_buttons).
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15
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16 The narrow right column contains command buttons
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17 (make_button, create_command_buttons).
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18 These are bound to functions that execute the command.
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19
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20 Except for command buttons, this base class is not limited to items
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21 common to all three subclasses. Rather, it is the Find dialog minus
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22 the "Find Next" command, its execution function, and the
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23 default_command attribute needed in create_widgets. The other
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24 dialogs override attributes and methods, the latter to replace and
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25 add widgets.
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26 '''
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27
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28 title = "Search Dialog" # replace in subclasses
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29 icon = "Search"
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30 needwrapbutton = 1 # not in Find in Files
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31
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32 def __init__(self, root, engine):
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33 '''Initialize root, engine, and top attributes.
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34
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35 top (level widget): set in create_widgets() called from open().
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36 text (Text searched): set in open(), only used in subclasses().
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37 ent (ry): created in make_entry() called from create_entry().
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38 row (of grid): 0 in create_widgets(), +1 in make_entry/frame().
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39 default_command: set in subclasses, used in create_widgets().
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40
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41 title (of dialog): class attribute, override in subclasses.
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42 icon (of dialog): ditto, use unclear if cannot minimize dialog.
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43 '''
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44 self.root = root
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45 self.bell = root.bell
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46 self.engine = engine
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47 self.top = None
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48
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49 def open(self, text, searchphrase=None):
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50 "Make dialog visible on top of others and ready to use."
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51 self.text = text
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52 if not self.top:
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53 self.create_widgets()
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54 else:
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55 self.top.deiconify()
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56 self.top.tkraise()
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57 self.top.transient(text.winfo_toplevel())
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58 if searchphrase:
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59 self.ent.delete(0,"end")
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60 self.ent.insert("end",searchphrase)
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61 self.ent.focus_set()
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62 self.ent.selection_range(0, "end")
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63 self.ent.icursor(0)
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64 self.top.grab_set()
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65
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66 def close(self, event=None):
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67 "Put dialog away for later use."
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68 if self.top:
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69 self.top.grab_release()
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70 self.top.transient('')
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71 self.top.withdraw()
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72
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73 def create_widgets(self):
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74 '''Create basic 3 row x 3 col search (find) dialog.
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75
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76 Other dialogs override subsidiary create_x methods as needed.
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77 Replace and Find-in-Files add another entry row.
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78 '''
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79 top = Toplevel(self.root)
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80 top.bind("<Return>", self.default_command)
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81 top.bind("<Escape>", self.close)
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82 top.protocol("WM_DELETE_WINDOW", self.close)
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83 top.wm_title(self.title)
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84 top.wm_iconname(self.icon)
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85 self.top = top
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86
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87 self.row = 0
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88 self.top.grid_columnconfigure(0, pad=2, weight=0)
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89 self.top.grid_columnconfigure(1, pad=2, minsize=100, weight=100)
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90
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91 self.create_entries() # row 0 (and maybe 1), cols 0, 1
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92 self.create_option_buttons() # next row, cols 0, 1
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93 self.create_other_buttons() # next row, cols 0, 1
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94 self.create_command_buttons() # col 2, all rows
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95
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96 def make_entry(self, label_text, var):
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97 '''Return (entry, label), .
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98
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99 entry - gridded labeled Entry for text entry.
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100 label - Label widget, returned for testing.
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101 '''
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102 label = Label(self.top, text=label_text)
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103 label.grid(row=self.row, column=0, sticky="nw")
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104 entry = Entry(self.top, textvariable=var, exportselection=0)
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105 entry.grid(row=self.row, column=1, sticky="nwe")
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106 self.row = self.row + 1
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107 return entry, label
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108
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109 def create_entries(self):
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110 "Create one or more entry lines with make_entry."
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111 self.ent = self.make_entry("Find:", self.engine.patvar)[0]
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112
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113 def make_frame(self,labeltext=None):
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114 '''Return (frame, label).
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115
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116 frame - gridded labeled Frame for option or other buttons.
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117 label - Label widget, returned for testing.
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118 '''
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119 if labeltext:
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120 label = Label(self.top, text=labeltext)
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121 label.grid(row=self.row, column=0, sticky="nw")
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122 else:
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123 label = ''
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124 frame = Frame(self.top)
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125 frame.grid(row=self.row, column=1, columnspan=1, sticky="nwe")
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126 self.row = self.row + 1
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127 return frame, label
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128
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129 def create_option_buttons(self):
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130 '''Return (filled frame, options) for testing.
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131
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132 Options is a list of searchengine booleanvar, label pairs.
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133 A gridded frame from make_frame is filled with a Checkbutton
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134 for each pair, bound to the var, with the corresponding label.
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135 '''
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136 frame = self.make_frame("Options")[0]
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137 engine = self.engine
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138 options = [(engine.revar, "Regular expression"),
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139 (engine.casevar, "Match case"),
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140 (engine.wordvar, "Whole word")]
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141 if self.needwrapbutton:
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142 options.append((engine.wrapvar, "Wrap around"))
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143 for var, label in options:
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144 btn = Checkbutton(frame, variable=var, text=label)
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145 btn.pack(side="left", fill="both")
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146 return frame, options
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147
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148 def create_other_buttons(self):
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149 '''Return (frame, others) for testing.
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150
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151 Others is a list of value, label pairs.
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152 A gridded frame from make_frame is filled with radio buttons.
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153 '''
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154 frame = self.make_frame("Direction")[0]
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155 var = self.engine.backvar
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156 others = [(1, 'Up'), (0, 'Down')]
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157 for val, label in others:
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158 btn = Radiobutton(frame, variable=var, value=val, text=label)
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159 btn.pack(side="left", fill="both")
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160 return frame, others
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161
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162 def make_button(self, label, command, isdef=0):
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163 "Return command button gridded in command frame."
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164 b = Button(self.buttonframe,
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165 text=label, command=command,
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166 default=isdef and "active" or "normal")
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167 cols,rows=self.buttonframe.grid_size()
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168 b.grid(pady=1,row=rows,column=0,sticky="ew")
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169 self.buttonframe.grid(rowspan=rows+1)
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170 return b
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171
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172 def create_command_buttons(self):
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173 "Place buttons in vertical command frame gridded on right."
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174 f = self.buttonframe = Frame(self.top)
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175 f.grid(row=0,column=2,padx=2,pady=2,ipadx=2,ipady=2)
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176
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177 b = self.make_button("Close", self.close)
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178 b.lower()
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179
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180
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181 class _searchbase(SearchDialogBase): # htest #
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182 "Create auto-opening dialog with no text connection."
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183
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184 def __init__(self, parent):
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185 import re
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186 from idlelib import searchengine
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187
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188 self.root = parent
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189 self.engine = searchengine.get(parent)
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190 self.create_widgets()
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191 print(parent.geometry())
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192 width,height, x,y = list(map(int, re.split('[x+]', parent.geometry())))
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193 self.top.geometry("+%d+%d" % (x + 40, y + 175))
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194
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195 def default_command(self, dummy): pass
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196
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197
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198 if __name__ == '__main__':
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199 from unittest import main
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200 main('idlelib.idle_test.test_searchbase', verbosity=2, exit=False)
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201
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202 from idlelib.idle_test.htest import run
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203 run(_searchbase)
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