Graphics/PackageItem.py

Mon, 10 Sep 2012 18:42:28 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Mon, 10 Sep 2012 18:42:28 +0200
changeset 2034
8de0fc1f7fef
parent 2033
4b99609f6a87
child 2039
fa41ccd7f7bc
permissions
-rw-r--r--

Implemented functions to load UML graphics from disc.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2007 - 2012 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 package item.
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8 """
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9
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10 from PyQt4.QtGui import QFont, QGraphicsSimpleTextItem, QStyle
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11
12
1d8dd9706f46 First commit after changing to Python 3.1.
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12 from .UMLItem import UMLItem
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13
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14 import Utilities
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15
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16
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17 class PackageModel(object):
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18 """
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19 Class implementing the package model.
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20 """
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21 def __init__(self, name, moduleslist=[]):
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22 """
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23 Constructor
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24
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25 @param name package name (string)
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26 @param moduleslist list of module names (list of strings)
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27 """
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28 self.name = name
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29 self.moduleslist = moduleslist
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30
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31 def addModule(self, modulename):
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32 """
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33 Method to add a module to the package model.
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34
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35 @param modulename module name to be added (string)
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36 """
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37 self.moduleslist.append(modulename)
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38
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39 def getModules(self):
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40 """
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41 Method to retrieve the modules of the package.
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42
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43 @return list of module names (list of strings)
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44 """
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45 return self.moduleslist[:]
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46
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47 def getName(self):
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48 """
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49 Method to retrieve the package name.
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50
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51 @return package name (string)
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52 """
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53 return self.name
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54
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55
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56 class PackageItem(UMLItem):
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57 """
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58 Class implementing a package item.
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59 """
2032
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60 ItemType = "package"
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61
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62 def __init__(self, model=None, x=0, y=0, rounded=False,
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63 noModules=False, parent=None, scene=None):
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64 """
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65 Constructor
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66
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67 @param model module model containing the module data (ModuleModel)
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68 @param x x-coordinate (integer)
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69 @param y y-coordinate (integer)
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70 @param rounded flag indicating a rounded corner (boolean)
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71 @keyparam noModules flag indicating, that no module names should be
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72 shown (boolean)
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73 @keyparam parent reference to the parent object (QGraphicsItem)
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74 @keyparam scene reference to the scene object (QGraphicsScene)
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75 """
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76 UMLItem.__init__(self, x, y, rounded, parent)
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77 self.model = model
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78 self.noModules = noModules
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79
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80 scene.addItem(self)
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81
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82 if self.model:
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83 self.__createTexts()
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84 self.__calculateSize()
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85
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86 def __createTexts(self):
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87 """
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88 Private method to create the text items of the class item.
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89 """
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90 if self.model is None:
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91 return
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92
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93 boldFont = QFont(self.font)
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94 boldFont.setBold(True)
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95
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96 modules = self.model.getModules()
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97
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98 x = self.margin + self.rect().x()
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99 y = self.margin + self.rect().y()
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100 self.header = QGraphicsSimpleTextItem(self)
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101 self.header.setFont(boldFont)
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102 self.header.setText(self.model.getName())
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103 self.header.setPos(x, y)
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104 y += self.header.boundingRect().height() + self.margin
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105
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106 if not self.noModules:
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107 if modules:
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108 txt = "\n".join(modules)
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109 else:
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110 txt = " "
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111 self.modules = QGraphicsSimpleTextItem(self)
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112 self.modules.setFont(self.font)
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113 self.modules.setText(txt)
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114 self.modules.setPos(x, y)
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115 else:
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116 self.modules = None
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117
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118 def __calculateSize(self):
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119 """
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120 Method to calculate the size of the package widget.
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121 """
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122 if self.model is None:
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123 return
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124
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125 width = self.header.boundingRect().width()
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126 height = self.header.boundingRect().height()
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127 if self.modules:
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128 width = max(width, self.modules.boundingRect().width())
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129 height = height + self.modules.boundingRect().height()
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130 latchW = width / 3.0
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131 latchH = min(15.0, latchW)
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132 self.setSize(width + 2 * self.margin, height + latchH + 2 * self.margin)
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133
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
134 x = self.margin + self.rect().x()
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parents:
diff changeset
135 y = self.margin + self.rect().y() + latchH
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
136 self.header.setPos(x, y)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
137 y += self.header.boundingRect().height() + self.margin
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
138 if self.modules:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
139 self.modules.setPos(x, y)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
140
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
141 def setModel(self, model):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
142 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
143 Method to set the package model.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
144
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
145 @param model package model containing the package data (PackageModel)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
146 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
147 self.scene().removeItem(self.header)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
148 self.header = None
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
149 if self.modules:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
150 self.scene().removeItem(self.modules)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
151 self.modules = None
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
152 self.model = model
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
153 self.__createTexts()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
154 self.__calculateSize()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
155
945
8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 791
diff changeset
156 def paint(self, painter, option, widget=None):
0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
157 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
158 Public method to paint the item in local coordinates.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
159
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
160 @param painter reference to the painter object (QPainter)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
161 @param option style options (QStyleOptionGraphicsItem)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
162 @param widget optional reference to the widget painted on (QWidget)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
163 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
164 pen = self.pen()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
165 if (option.state & QStyle.State_Selected) == QStyle.State(QStyle.State_Selected):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
166 pen.setWidth(2)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
167 else:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
168 pen.setWidth(1)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
169
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
170 offsetX = self.rect().x()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
171 offsetY = self.rect().y()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
172 w = self.rect().width()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
173 latchW = w / 3.0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
174 latchH = min(15.0, latchW)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
175 h = self.rect().height() - latchH + 1
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
176
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
177 painter.setPen(pen)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
178 painter.setBrush(self.brush())
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
179 painter.setFont(self.font)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
180
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
181 painter.drawRect(offsetX, offsetY, latchW, latchH)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
182 painter.drawRect(offsetX, offsetY + latchH, w, h)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
183 y = self.margin + self.header.boundingRect().height() + latchH
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
184 painter.drawLine(offsetX, offsetY + y, offsetX + w - 1, offsetY + y)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
185
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
186 self.adjustAssociations()
2030
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
187
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
188 def buildItemDataString(self):
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
189 """
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
190 Public method to build a string to persist the specific item data.
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
191
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
192 This string must start with ", " and should be built like
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
193 "attribute=value" with pairs separated by ", ". value must not contain ", "
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
194 or newlines.
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
195
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
196 @return persistence data (string)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
197 """
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
198 entries = [
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
199 "no_modules={0}".format(self.noModules),
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
200 "name={0}".format(self.model.getName()),
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
201 ]
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
202 modules = self.model.getModules()
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
203 if modules:
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
204 entries.append("modules={0}".format("||".join(modules)))
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
205
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
206 return ", " + ", ".join(entries)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
207
2034
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
208 def parseItemDataString(self, version, data):
2030
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
209 """
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
210 Public method to parse the given persistence data.
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
211
2034
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
212 @param version version of the data (string)
2030
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
213 @param data persisted data to be parsed (string)
2034
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
214 @return flag indicating success (boolean)
2030
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1509
diff changeset
215 """
2034
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
216 parts = data.split(", ")
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
217 if len(parts) < 2:
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
218 return False
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
219
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
220 name = ""
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
221 modules = []
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
222
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
223 for part in parts:
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
224 key, value = part.split("=", 1)
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
225 if key == "no_modules":
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
226 self.external = Utilities.toBool(value.strip())
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
227 elif key == "name":
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
228 name = value.strip()
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
229 elif key == "modules":
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
230 modules = value.strip().split("||")
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
231 else:
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
232 return False
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
233
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
234 self.model = PackageModel(name, modules)
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
235 self.__createTexts()
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
236 self.__calculateSize()
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
237
8de0fc1f7fef Implemented functions to load UML graphics from disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2033
diff changeset
238 return True

eric ide

mercurial