Graphics/PackageItem.py

Mon, 28 Dec 2009 16:03:33 +0000

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Mon, 28 Dec 2009 16:03:33 +0000
changeset 0
de9c2efb9d02
child 12
1d8dd9706f46
permissions
-rw-r--r--

Started porting eric4 to Python3

0
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Detlev Offenbach <detlev@die-offenbachs.de>
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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2007 - 2009 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.QtCore import *
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11 from PyQt4.QtGui import *
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12
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13 from UMLItem import UMLItem
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14
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15 class PackageModel(object):
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16 """
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17 Class implementing the package model.
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18 """
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19 def __init__(self, name, moduleslist = []):
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20 """
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21 Constructor
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22
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23 @param name package name (string)
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24 @param moduleslist list of module names (list of strings)
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25 """
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26 self.name = name
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27 self.moduleslist = moduleslist
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28
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29 def addModule(self, modulename):
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30 """
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31 Method to add a module to the package model.
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32
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33 @param modulename module name to be added (string)
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34 """
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35 self.moduleslist.append(classname)
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36
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37 def getModules(self):
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38 """
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39 Method to retrieve the modules of the package.
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40
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41 @return list of module names (list of strings)
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42 """
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43 return self.moduleslist[:]
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44
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45 def getName(self):
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46 """
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47 Method to retrieve the package name.
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48
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49 @return package name (string)
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50 """
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51 return self.name
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52
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53 class PackageItem(UMLItem):
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54 """
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55 Class implementing a package item.
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56 """
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57 def __init__(self, model = None, x = 0, y = 0, rounded = False,
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58 noModules = False, parent = None, scene = None):
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59 """
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60 Constructor
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61
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62 @param model module model containing the module data (ModuleModel)
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63 @param x x-coordinate (integer)
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64 @param y y-coordinate (integer)
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65 @param rounded flag indicating a rounded corner (boolean)
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66 @keyparam noModules flag indicating, that no module names should be
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67 shown (boolean)
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68 @keyparam parent reference to the parent object (QGraphicsItem)
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69 @keyparam scene reference to the scene object (QGraphicsScene)
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70 """
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71 UMLItem.__init__(self, x, y, rounded, parent)
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72 self.model = model
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73 self.noModules = noModules
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74
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75 scene.addItem(self)
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76
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77 if self.model:
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78 self.__createTexts()
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79 self.__calculateSize()
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80
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81 def __createTexts(self):
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82 """
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83 Private method to create the text items of the class item.
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84 """
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85 if self.model is None:
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86 return
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87
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88 boldFont = QFont(self.font)
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89 boldFont.setBold(True)
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90
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91 modules = self.model.getModules()
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92
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93 x = self.margin + self.rect().x()
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94 y = self.margin + self.rect().y()
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95 self.header = QGraphicsSimpleTextItem(self)
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96 self.header.setFont(boldFont)
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97 self.header.setText(self.model.getName())
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98 self.header.setPos(x, y)
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99 y += self.header.boundingRect().height() + self.margin
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100
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101 if not self.noModules:
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102 if modules:
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103 txt = "\n".join(modules)
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104 else:
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105 txt = " "
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106 self.modules = QGraphicsSimpleTextItem(self)
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107 self.modules.setFont(self.font)
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108 self.modules.setText(txt)
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109 self.modules.setPos(x, y)
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110 else:
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111 self.modules = None
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112
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113 def __calculateSize(self):
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114 """
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115 Method to calculate the size of the package widget.
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116 """
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117 if self.model is None:
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118 return
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119
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120 width = self.header.boundingRect().width()
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121 height = self.header.boundingRect().height()
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122 if self.modules:
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123 width = max(width, self.modules.boundingRect().width())
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124 height = height + self.modules.boundingRect().height()
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125 latchW = width / 3.0
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126 latchH = min(15.0, latchW)
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127 self.setSize(width + 2 * self.margin, height + latchH + 2 * self.margin)
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128
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129 x = self.margin + self.rect().x()
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130 y = self.margin + self.rect().y() + latchH
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131 self.header.setPos(x, y)
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132 y += self.header.boundingRect().height() + self.margin
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133 if self.modules:
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134 self.modules.setPos(x, y)
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135
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136 def setModel(self, model):
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137 """
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138 Method to set the package model.
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139
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140 @param model package model containing the package data (PackageModel)
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141 """
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142 self.scene().removeItem(self.header)
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143 self.header = None
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144 if self.modules:
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145 self.scene().removeItem(self.modules)
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146 self.modules = None
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147 self.model = model
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148 self.__createTexts()
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149 self.__calculateSize()
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150
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151 def paint(self, painter, option, widget = None):
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152 """
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153 Public method to paint the item in local coordinates.
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154
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155 @param painter reference to the painter object (QPainter)
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156 @param option style options (QStyleOptionGraphicsItem)
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157 @param widget optional reference to the widget painted on (QWidget)
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158 """
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159 pen = self.pen()
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160 if (option.state & QStyle.State_Selected) == QStyle.State(QStyle.State_Selected):
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161 pen.setWidth(2)
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162 else:
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163 pen.setWidth(1)
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164
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165 offsetX = self.rect().x()
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166 offsetY = self.rect().y()
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167 w = self.rect().width()
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168 latchW = w / 3.0
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169 latchH = min(15.0, latchW)
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170 h = self.rect().height() - latchH + 1
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171
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172 painter.setPen(pen)
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173 painter.setBrush(self.brush())
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174 painter.setFont(self.font)
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175
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176 painter.drawRect(offsetX, offsetY, latchW, latchH)
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177 painter.drawRect(offsetX, offsetY + latchH, w, h)
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178 y = self.margin + self.header.boundingRect().height() + latchH
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179 painter.drawLine(offsetX, offsetY + y, offsetX + w - 1, offsetY + y)
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180
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181 self.adjustAssociations()

eric ide

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