Graphics/ImportsDiagram.py

Fri, 14 May 2010 17:23:52 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Fri, 14 May 2010 17:23:52 +0200
changeset 247
b3da30a52337
parent 96
9624a110667d
child 413
3d82e6eb3516
child 792
a13346916170
permissions
-rw-r--r--

Fixed an issue causing the Imports diagram to fail on Windows systems.

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1 # -*- coding: utf-8 -*-
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2
13
1af94a91f439 Changed copyright for 2010.
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3 # Copyright (c) 2007 - 2010 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a dialog showing an imports diagram of a package.
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8 """
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9
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10 import glob
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11 import os
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12
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13 from PyQt4.QtCore import *
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14 from PyQt4.QtGui import *
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15
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16 from .UMLDialog import UMLDialog
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17 from .ModuleItem import ModuleItem, ModuleModel
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18 from .AssociationItem import AssociationItem, Imports
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19
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20 import Utilities.ModuleParser
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21 import Utilities
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22 import Preferences
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23
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24 class ImportsDiagram(UMLDialog):
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25 """
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26 Class implementing a dialog showing an imports diagram of a package.
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27
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28 Note: Only package internal imports are show in order to maintain
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29 some readability.
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30 """
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31 def __init__(self, package, parent = None, name = None, showExternalImports = False):
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32 """
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33 Constructor
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34
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35 @param package name of a python package to show the import
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36 relationships (string)
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37 @param parent parent widget of the view (QWidget)
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38 @param name name of the view widget (string)
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39 @keyparam showExternalImports flag indicating to show exports from outside
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40 the package (boolean)
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41 """
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42 self.showExternalImports = showExternalImports
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43 self.packagePath = Utilities.normabspath(package)
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44 self.package = os.path.splitdrive(self.packagePath)[1].replace(os.sep, '.')[1:]
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45 hasInit = True
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46 ppath = self.packagePath
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47 while hasInit:
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48 ppath = os.path.dirname(ppath)
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49 hasInit = len(glob.glob(os.path.join(ppath, '__init__.*'))) > 0
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50 self.shortPackage = self.packagePath.replace(ppath, '').replace(os.sep, '.')[1:]
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51
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52 UMLDialog.__init__(self, self.packagePath, parent)
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53
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54 if not name:
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55 self.setObjectName("ImportsDiagram")
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56 else:
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57 self.setObjectName(name)
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58
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59 self.connect(self.umlView, SIGNAL("relayout()"), self.relayout)
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60
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61 def __buildModulesDict(self):
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62 """
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63 Private method to build a dictionary of modules contained in the package.
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64
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65 @return dictionary of modules contained in the package.
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66 """
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67 moduleDict = {}
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68 modules = []
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69 for ext in Preferences.getPython("PythonExtensions") + \
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70 Preferences.getPython("Python3Extensions"):
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71 modules.extend(
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72 glob.glob(Utilities.normjoinpath(self.packagePath, '*%s' % ext)))
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73
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74 tot = len(modules)
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75 try:
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76 prog = 0
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77 progress = QProgressDialog(self.trUtf8("Parsing modules..."),
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78 None, 0, tot, self)
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79 progress.show()
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80 QApplication.processEvents()
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81 for module in modules:
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82 progress.setValue(prog)
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83 QApplication.processEvents()
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84 prog = prog + 1
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85 try:
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86 mod = Utilities.ModuleParser.readModule(module, caching = False)
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87 except ImportError:
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88 continue
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89 else:
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90 name = mod.name
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91 if name.startswith(self.package):
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92 name = name[len(self.package) + 1:]
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93 moduleDict[name] = mod
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94 finally:
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95 progress.setValue(tot)
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96 return moduleDict
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97
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98 def __buildImports(self):
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99 """
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100 Private method to build the modules shapes of the diagram.
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101 """
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102 initlist = glob.glob(os.path.join(self.packagePath, '__init__.*'))
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103 if len(initlist) == 0:
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104 ct = QGraphicsTextItem(None, self.scene)
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105 ct.setHtml(\
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106 self.trUtf8("The directory <b>'{0}'</b> is not a Python package.")\
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107 .format(self.package))
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108 return
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109
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110 shapes = {}
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111 p = 10
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112 y = 10
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113 maxHeight = 0
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114 sceneRect = self.umlView.sceneRect()
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115
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116 modules = self.__buildModulesDict()
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117 sortedkeys = sorted(modules.keys())
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118 externalMods = []
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119 packageList = self.shortPackage.split('.')
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120 packageListLen = len(packageList)
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121 for module in sortedkeys:
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122 impLst = []
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123 for i in modules[module].imports:
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124 if i.startswith(self.package):
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125 n = i[len(self.package) + 1:]
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126 else:
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127 n = i
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128 if i in modules:
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129 impLst.append(n)
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130 elif self.showExternalImports:
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131 impLst.append(n)
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132 if not n in externalMods:
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133 externalMods.append(n)
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134 for i in list(modules[module].from_imports.keys()):
0
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135 if i.startswith('.'):
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136 dots = len(i) - len(i.lstrip('.'))
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137 if dots == 1:
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138 n = i[1:]
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139 i = n
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140 else:
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141 if self.showExternalImports:
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142 n = '.'.join(\
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143 packageList[:packageListLen - dots + 1] + [i[dots:]])
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144 else:
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145 n = i
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146 elif i.startswith(self.package):
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147 n = i[len(self.package) + 1:]
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148 else:
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149 n = i
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150 if i in modules:
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151 impLst.append(n)
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152 elif self.showExternalImports:
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153 impLst.append(n)
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154 if not n in externalMods:
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155 externalMods.append(n)
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156 classNames = []
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157 for cls in list(modules[module].classes.keys()):
0
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158 className = modules[module].classes[cls].name
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159 if className not in classNames:
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160 classNames.append(className)
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parents:
diff changeset
161 shape = self.__addModule(module, classNames, 0.0, 0.0)
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162 shapeRect = shape.sceneBoundingRect()
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163 shapes[module] = (shape, impLst)
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164 pn = p + shapeRect.width() + 10
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165 maxHeight = max(maxHeight, shapeRect.height())
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166 if pn > sceneRect.width():
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167 p = 10
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168 y += maxHeight + 10
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169 maxHeight = shapeRect.height()
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170 shape.setPos(p, y)
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171 p += shapeRect.width() + 10
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172 else:
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173 shape.setPos(p, y)
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174 p = pn
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175
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176 for module in externalMods:
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parents:
diff changeset
177 shape = self.__addModule(module, [], 0.0, 0.0)
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diff changeset
178 shapeRect = shape.sceneBoundingRect()
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179 shapes[module] = (shape, [])
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180 pn = p + shapeRect.width() + 10
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diff changeset
181 maxHeight = max(maxHeight, shapeRect.height())
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diff changeset
182 if pn > sceneRect.width():
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183 p = 10
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184 y += maxHeight + 10
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diff changeset
185 maxHeight = shapeRect.height()
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diff changeset
186 shape.setPos(p, y)
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187 p += shapeRect.width() + 10
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diff changeset
188 else:
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diff changeset
189 shape.setPos(p, y)
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190 p = pn
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191
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diff changeset
192 rect = self.umlView._getDiagramRect(10)
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193 sceneRect = self.umlView.sceneRect()
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194 if rect.width() > sceneRect.width():
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diff changeset
195 sceneRect.setWidth(rect.width())
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196 if rect.height() > sceneRect.height():
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197 sceneRect.setHeight(rect.height())
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diff changeset
198 self.umlView.setSceneSize(sceneRect.width(), sceneRect.height())
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199
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200 self.__createAssociations(shapes)
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201
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202 def __addModule(self, name, classes, x, y):
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203 """
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diff changeset
204 Private method to add a module to the diagram.
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diff changeset
205
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206 @param name module name to be shown (string)
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207 @param classes list of class names contained in the module
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208 (list of strings)
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diff changeset
209 @param x x-coordinate (float)
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diff changeset
210 @param y y-coordinate (float)
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diff changeset
211 """
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parents:
diff changeset
212 classes.sort()
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parents:
diff changeset
213 impM = ModuleModel(name, classes)
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parents:
diff changeset
214 impW = ModuleItem(impM, x, y, scene = self.scene)
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diff changeset
215 return impW
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diff changeset
216
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diff changeset
217 def __createAssociations(self, shapes):
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diff changeset
218 """
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parents:
diff changeset
219 Private method to generate the associations between the module shapes.
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diff changeset
220
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diff changeset
221 @param shapes list of shapes
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parents:
diff changeset
222 """
12
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diff changeset
223 for module in list(shapes.keys()):
0
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parents:
diff changeset
224 for rel in shapes[module][1]:
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parents:
diff changeset
225 assoc = AssociationItem(\
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parents:
diff changeset
226 shapes[module][0], shapes[rel][0],
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parents:
diff changeset
227 Imports)
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parents:
diff changeset
228 self.scene.addItem(assoc)
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diff changeset
229
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diff changeset
230 def show(self):
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parents:
diff changeset
231 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
232 Overriden method to show the dialog.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
233 """
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parents:
diff changeset
234 self.__buildImports()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
235 UMLDialog.show(self)
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diff changeset
236
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diff changeset
237 def relayout(self):
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parents:
diff changeset
238 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
239 Method to relayout the diagram.
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parents:
diff changeset
240 """
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parents:
diff changeset
241 self.__buildImports()

eric ide

mercurial