Graphics/AssociationItem.py

Sun, 09 Sep 2012 14:46:59 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sun, 09 Sep 2012 14:46:59 +0200
changeset 2030
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parent 2024
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child 2034
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permissions
-rw-r--r--

Implemented functions to save the UML graphics to disc.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2004 - 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 graphics item for an association between two items.
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8 """
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9
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10 from PyQt4.QtCore import QPointF, QRectF, QLineF
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11 from PyQt4.QtGui import QGraphicsItem
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12
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13 from E5Graphics.E5ArrowItem import E5ArrowItem, NormalArrow, WideArrow
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14
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15 import Utilities
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16
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17
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18 Normal = 0
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19 Generalisation = 1
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20 Imports = 2
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21
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22
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23 NoRegion = 0
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24 West = 1
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25 North = 2
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26 East = 3
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27 South = 4
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28 NorthWest = 5
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29 NorthEast = 6
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30 SouthEast = 7
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31 SouthWest = 8
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32 Center = 9
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33
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34
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35 class AssociationItem(E5ArrowItem):
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36 """
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37 Class implementing a graphics item for an association between two items.
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38
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39 The association is drawn as an arrow starting at the first items and
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40 ending at the second.
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41 """
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42 def __init__(self, itemA, itemB, type=Normal, topToBottom=False,
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43 parent=None):
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44 """
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45 Constructor
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46
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47 @param itemA first widget of the association
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48 @param itemB second widget of the association
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49 @param type type of the association. This must be one of
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50 <ul>
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51 <li>Normal (default)</li>
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52 <li>Generalisation</li>
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53 <li>Imports</li>
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54 </ul>
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55 @keyparam topToBottom flag indicating to draw the association
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56 from item A top to item B bottom (boolean)
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57 @keyparam parent reference to the parent object (QGraphicsItem)
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58 """
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59 if type == Normal:
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60 arrowType = NormalArrow
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61 arrowFilled = True
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62 elif type == Imports:
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63 arrowType = NormalArrow
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64 arrowFilled = True
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65 elif type == Generalisation:
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66 arrowType = WideArrow
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67 arrowFilled = False
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68
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69 E5ArrowItem.__init__(self, QPointF(0, 0), QPointF(100, 100),
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70 arrowFilled, arrowType, parent)
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71
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72 self.setFlag(QGraphicsItem.ItemIsMovable, False)
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73 self.setFlag(QGraphicsItem.ItemIsSelectable, False)
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74
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75 if topToBottom:
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76 self.calculateEndingPoints = self.__calculateEndingPoints_topToBottom
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77 else:
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78 ## self.calculateEndingPoints = self.__calculateEndingPoints_center
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79 self.calculateEndingPoints = self.__calculateEndingPoints_rectangle
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80
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81 self.itemA = itemA
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82 self.itemB = itemB
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83 self.assocType = type
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84 self.topToBottom = topToBottom
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85
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86 self.regionA = NoRegion
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87 self.regionB = NoRegion
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88
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89 self.calculateEndingPoints()
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90
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91 self.itemA.addAssociation(self)
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92 self.itemB.addAssociation(self)
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93
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94 def __mapRectFromItem(self, item):
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95 """
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96 Private method to map item's rectangle to this item's coordinate system.
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97
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98 @param item reference to the item to be mapped (QGraphicsRectItem)
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99 @return item's rectangle in local coordinates (QRectF)
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100 """
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101 rect = item.rect()
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102 tl = self.mapFromItem(item, rect.topLeft())
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103 return QRectF(tl.x(), tl.y(), rect.width(), rect.height())
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104
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105 def __calculateEndingPoints_topToBottom(self):
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106 """
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107 Private method to calculate the ending points of the association item.
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108
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109 The ending points are calculated from the top center of the lower item
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110 to the bottom center of the upper item.
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111 """
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112 if self.itemA is None or self.itemB is None:
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113 return
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114
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115 self.prepareGeometryChange()
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116
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117 rectA = self.__mapRectFromItem(self.itemA)
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118 rectB = self.__mapRectFromItem(self.itemB)
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119 midA = QPointF(rectA.x() + rectA.width() / 2.0,
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120 rectA.y() + rectA.height() / 2.0)
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121 midB = QPointF(rectB.x() + rectB.width() / 2.0,
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122 rectB.y() + rectB.height() / 2.0)
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123 if midA.y() > midB.y():
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124 startP = QPointF(rectA.x() + rectA.width() / 2.0, rectA.y())
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125 endP = QPointF(rectB.x() + rectB.width() / 2.0,
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126 rectB.y() + rectB.height())
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127 else:
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128 startP = QPointF(rectA.x() + rectA.width() / 2.0,
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129 rectA.y() + rectA.height())
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130 endP = QPointF(rectB.x() + rectB.width() / 2.0, rectB.y())
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131 self.setPoints(startP.x(), startP.y(), endP.x(), endP.y())
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132
0
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diff changeset
133 def __calculateEndingPoints_center(self):
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134 """
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parents:
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135 Private method to calculate the ending points of the association item.
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parents:
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136
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137 The ending points are calculated from the centers of the
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parents:
diff changeset
138 two associated items.
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parents:
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139 """
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diff changeset
140 if self.itemA is None or self.itemB is None:
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parents:
diff changeset
141 return
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parents:
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142
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parents:
diff changeset
143 self.prepareGeometryChange()
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144
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diff changeset
145 rectA = self.__mapRectFromItem(self.itemA)
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parents:
diff changeset
146 rectB = self.__mapRectFromItem(self.itemB)
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parents:
diff changeset
147 midA = QPointF(rectA.x() + rectA.width() / 2.0,
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parents:
diff changeset
148 rectA.y() + rectA.height() / 2.0)
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149 midB = QPointF(rectB.x() + rectB.width() / 2.0,
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parents:
diff changeset
150 rectB.y() + rectB.height() / 2.0)
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parents:
diff changeset
151 startP = self.__findRectIntersectionPoint(self.itemA, midA, midB)
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diff changeset
152 endP = self.__findRectIntersectionPoint(self.itemB, midB, midA)
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153
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diff changeset
154 if startP.x() != -1 and startP.y() != -1 and \
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parents:
diff changeset
155 endP.x() != -1 and endP.y() != -1:
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parents:
diff changeset
156 self.setPoints(startP.x(), startP.y(), endP.x(), endP.y())
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parents:
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157
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parents:
diff changeset
158 def __calculateEndingPoints_rectangle(self):
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parents:
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159 """
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parents:
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160 Private method to calculate the ending points of the association item.
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parents:
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161
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162 The ending points are calculated by the following method.
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163
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parents:
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164 For each item the diagram is divided in four Regions by its diagonals
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parents:
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165 as indicated below
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parents:
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166 <pre>
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parents:
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167 \ Region 2 /
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parents:
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168 \ /
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parents:
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169 |--------|
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170 | \ / |
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parents:
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171 | \ / |
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172 | \/ |
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parents:
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173 Region 1 | /\ | Region 3
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parents:
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174 | / \ |
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175 | / \ |
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parents:
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176 |--------|
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parents:
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177 / \
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parents:
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178 / Region 4 \
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parents:
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179 </pre>
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parents:
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180
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parents:
diff changeset
181 Each diagonal is defined by two corners of the bounding rectangle
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parents:
diff changeset
182
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183 To calculate the start point we have to find out in which
945
8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
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184 region (defined by itemA's diagonals) is itemB's TopLeft corner
0
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parents:
diff changeset
185 (lets call it region M). After that the start point will be
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parents:
diff changeset
186 the middle point of rectangle's side contained in region M.
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187
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diff changeset
188 To calculate the end point we repeat the above but in the opposite direction
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parents:
diff changeset
189 (from itemB to itemA)
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parents:
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190 """
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parents:
diff changeset
191 if self.itemA is None or self.itemB is None:
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parents:
diff changeset
192 return
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parents:
diff changeset
193
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diff changeset
194 self.prepareGeometryChange()
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diff changeset
195
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diff changeset
196 rectA = self.__mapRectFromItem(self.itemA)
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parents:
diff changeset
197 rectB = self.__mapRectFromItem(self.itemB)
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diff changeset
198
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parents:
diff changeset
199 xA = rectA.x() + rectA.width() / 2.0
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diff changeset
200 yA = rectA.y() + rectA.height() / 2.0
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parents:
diff changeset
201 xB = rectB.x() + rectB.width() / 2.0
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parents:
diff changeset
202 yB = rectB.y() + rectB.height() / 2.0
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parents:
diff changeset
203
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parents:
diff changeset
204 # find itemA region
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parents:
diff changeset
205 rc = QRectF(xA, yA, rectA.width(), rectA.height())
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parents:
diff changeset
206 self.regionA = self.__findPointRegion(rc, xB, yB)
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parents:
diff changeset
207 # move some regions to the standard ones
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parents:
diff changeset
208 if self.regionA == NorthWest:
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parents:
diff changeset
209 self.regionA = North
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parents:
diff changeset
210 elif self.regionA == NorthEast:
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parents:
diff changeset
211 self.regionA = East
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parents:
diff changeset
212 elif self.regionA == SouthEast:
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parents:
diff changeset
213 self.regionA = South
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parents:
diff changeset
214 elif self.regionA == SouthWest:
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parents:
diff changeset
215 self.regionA = West
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parents:
diff changeset
216 elif self.regionA == Center:
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parents:
diff changeset
217 self.regionA = West
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parents:
diff changeset
218
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parents:
diff changeset
219 self.__updateEndPoint(self.regionA, True)
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parents:
diff changeset
220
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parents:
diff changeset
221 # now do the same for itemB
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
222 rc = QRectF(xB, yB, rectB.width(), rectB.height())
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parents:
diff changeset
223 self.regionB = self.__findPointRegion(rc, xA, yA)
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parents:
diff changeset
224 # move some regions to the standard ones
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parents:
diff changeset
225 if self.regionB == NorthWest:
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parents:
diff changeset
226 self.regionB = North
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parents:
diff changeset
227 elif self.regionB == NorthEast:
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parents:
diff changeset
228 self.regionB = East
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parents:
diff changeset
229 elif self.regionB == SouthEast:
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parents:
diff changeset
230 self.regionB = South
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parents:
diff changeset
231 elif self.regionB == SouthWest:
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parents:
diff changeset
232 self.regionB = West
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parents:
diff changeset
233 elif self.regionB == Center:
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parents:
diff changeset
234 self.regionB = West
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parents:
diff changeset
235
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parents:
diff changeset
236 self.__updateEndPoint(self.regionB, False)
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parents:
diff changeset
237
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diff changeset
238 def __findPointRegion(self, rect, posX, posY):
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parents:
diff changeset
239 """
945
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parents: 791
diff changeset
240 Private method to find out, which region of rectangle rect contains the point
0
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parents:
diff changeset
241 (PosX, PosY) and returns the region number.
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242
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parents:
diff changeset
243 @param rect rectangle to calculate the region for (QRectF)
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parents:
diff changeset
244 @param posX x position of point (float)
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parents:
diff changeset
245 @param posY y position of point (float)
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parents:
diff changeset
246 @return the calculated region number<br />
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parents:
diff changeset
247 West = Region 1<br />
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
248 North = Region 2<br />
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
249 East = Region 3<br />
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
250 South = Region 4<br />
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
251 NorthWest = On diagonal 2 between Region 1 and 2<br />
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parents:
diff changeset
252 NorthEast = On diagonal 1 between Region 2 and 3<br />
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parents:
diff changeset
253 SouthEast = On diagonal 2 between Region 3 and 4<br />
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parents:
diff changeset
254 SouthWest = On diagonal 1 between Region4 and 1<br />
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parents:
diff changeset
255 Center = On diagonal 1 and On diagonal 2 (the center)<br />
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parents:
diff changeset
256 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
257 w = rect.width()
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parents:
diff changeset
258 h = rect.height()
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parents:
diff changeset
259 x = rect.x()
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parents:
diff changeset
260 y = rect.y()
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
261 slope2 = w / h
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
262 slope1 = -slope2
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
263 b1 = x + w / 2.0 - y * slope1
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
264 b2 = x + w / 2.0 - y * slope2
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
265
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
266 eval1 = slope1 * posY + b1
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
267 eval2 = slope2 * posY + b2
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
268
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
269 result = NoRegion
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
270
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
271 # inside region 1
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
272 if eval1 > posX and eval2 > posX:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
273 result = West
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
274
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
275 #inside region 2
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
276 elif eval1 > posX and eval2 < posX:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
277 result = North
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
278
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
279 # inside region 3
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
280 elif eval1 < posX and eval2 < posX:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
281 result = East
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
282
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
283 # inside region 4
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
284 elif eval1 < posX and eval2 > posX:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
285 result = South
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
286
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
287 # inside region 5
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
288 elif eval1 == posX and eval2 < posX:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
289 result = NorthWest
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
290
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
291 # inside region 6
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
292 elif eval1 < posX and eval2 == posX:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
293 result = NorthEast
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
294
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
295 # inside region 7
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
296 elif eval1 == posX and eval2 > posX:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
297 result = SouthEast
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
298
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
299 # inside region 8
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
300 elif eval1 > posX and eval2 == posX:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
301 result = SouthWest
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
302
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
303 # inside region 9
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
304 elif eval1 == posX and eval2 == posX:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
305 result = Center
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
306
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
307 return result
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
308
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
309 def __updateEndPoint(self, region, isWidgetA):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
310 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
311 Private method to update an endpoint.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
312
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
313 @param region the region for the endpoint (integer)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
314 @param isWidgetA flag indicating update for itemA is done (boolean)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
315 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
316 if region == NoRegion:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
317 return
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
318
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
319 if isWidgetA:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
320 rect = self.__mapRectFromItem(self.itemA)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
321 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
322 rect = self.__mapRectFromItem(self.itemB)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
323 x = rect.x()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
324 y = rect.y()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
325 ww = rect.width()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
326 wh = rect.height()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
327 ch = wh / 2.0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
328 cw = ww / 2.0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
329
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
330 if region == West:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
331 px = x
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
332 py = y + ch
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
333 elif region == North:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
334 px = x + cw
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
335 py = y
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
336 elif region == East:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
337 px = x + ww
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
338 py = y + ch
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
339 elif region == South:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
340 px = x + cw
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
341 py = y + wh
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
342 elif region == Center:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
343 px = x + cw
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
344 py = y + wh
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
345
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
346 if isWidgetA:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
347 self.setStartPoint(px, py)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
348 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
349 self.setEndPoint(px, py)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
350
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
351 def __findRectIntersectionPoint(self, item, p1, p2):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
352 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
353 Private method to find the intersetion point of a line with a rectangle.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
354
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
355 @param item item to check against
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
356 @param p1 first point of the line (QPointF)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
357 @param p2 second point of the line (QPointF)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
358 @return the intersection point (QPointF)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
359 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
360 rect = self.__mapRectFromItem(item)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
361 lines = [
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
362 QLineF(rect.topLeft(), rect.topRight()),
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
363 QLineF(rect.topLeft(), rect.bottomLeft()),
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
364 QLineF(rect.bottomRight(), rect.bottomLeft()),
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
365 QLineF(rect.bottomRight(), rect.topRight())
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
366 ]
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
367 intersectLine = QLineF(p1, p2)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
368 intersectPoint = QPointF(0, 0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
369 for line in lines:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
370 if intersectLine.intersect(line, intersectPoint) == \
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
371 QLineF.BoundedIntersection:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
372 return intersectPoint
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
373 return QPointF(-1.0, -1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
374
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
375 def __findIntersection(self, p1, p2, p3, p4):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
376 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
377 Method to calculate the intersection point of two lines.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
378
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
379 The first line is determined by the points p1 and p2, the second
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
380 line by p3 and p4. If the intersection point is not contained in
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
381 the segment p1p2, then it returns (-1.0, -1.0).
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
382
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
383 For the function's internal calculations remember:<br />
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
384 QT coordinates start with the point (0,0) as the topleft corner
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
385 and x-values increase from left to right and y-values increase
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
386 from top to bottom; it means the visible area is quadrant I in
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
387 the regular XY coordinate system
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
388
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
389 <pre>
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
390 Quadrant II | Quadrant I
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
391 -----------------|-----------------
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
392 Quadrant III | Quadrant IV
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
393 </pre>
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
394
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
395 In order for the linear function calculations to work in this method
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
396 we must switch x and y values (x values become y values and viceversa)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
397
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
398 @param p1 first point of first line (QPointF)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
399 @param p2 second point of first line (QPointF)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
400 @param p3 first point of second line (QPointF)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
401 @param p4 second point of second line (QPointF)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
402 @return the intersection point (QPointF)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
403 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
404 x1 = p1.y()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
405 y1 = p1.x()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
406 x2 = p2.y()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
407 y2 = p2.x()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
408 x3 = p3.y()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
409 y3 = p3.x()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
410 x4 = p4.y()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
411 y4 = p4.x()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
412
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
413 # line 1 is the line between (x1, y1) and (x2, y2)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
414 # line 2 is the line between (x3, y3) and (x4, y4)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
415 no_line1 = True # it is false, if line 1 is a linear function
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
416 no_line2 = True # it is false, if line 2 is a linear function
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
417 slope1 = 0.0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
418 slope2 = 0.0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
419 b1 = 0.0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
420 b2 = 0.0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
421
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
422 if x2 != x1:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
423 slope1 = (y2 - y1) / (x2 - x1)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
424 b1 = y1 - slope1 * x1
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
425 no_line1 = False
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
426 if x4 != x3:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
427 slope2 = (y4 - y3) / (x4 - x3)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
428 b2 = y3 - slope2 * x3
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
429 no_line2 = False
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
430
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
431 pt = QPointF()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
432 # if either line is not a function
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
433 if no_line1 and no_line2:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
434 # if the lines are not the same one
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
435 if x1 != x3:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
436 return QPointF(-1.0, -1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
437 # if the lines are the same ones
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
438 if y3 <= y4:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
439 if y3 <= y1 and y1 <= y4:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
440 return QPointF(y1, x1)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
441 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
442 return QPointF(y2, x2)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
443 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
444 if y4 <= y1 and y1 <= y3:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
445 return QPointF(y1, x1)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
446 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
447 return QPointF(y2, x2)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
448 elif no_line1:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
449 pt.setX(slope2 * x1 + b2)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
450 pt.setY(x1)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
451 if y1 >= y2:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
452 if not (y2 <= pt.x() and pt.x() <= y1):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
453 pt.setX(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
454 pt.setY(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
455 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
456 if not (y1 <= pt.x() and pt.x() <= y2):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
457 pt.setX(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
458 pt.setY(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
459 return pt
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
460 elif no_line2:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
461 pt.setX(slope1 * x3 + b1)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
462 pt.setY(x3)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
463 if y3 >= y4:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
464 if not (y4 <= pt.x() and pt.x() <= y3):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
465 pt.setX(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
466 pt.setY(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
467 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
468 if not (y3 <= pt.x() and pt.x() <= y4):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
469 pt.setX(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
470 pt.setY(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
471 return pt
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
472
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
473 if slope1 == slope2:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
474 pt.setX(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
475 pt.setY(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
476 return pt
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
477
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
478 pt.setY((b2 - b1) / (slope1 - slope2))
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
479 pt.setX(slope1 * pt.y() + b1)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
480 # the intersection point must be inside the segment (x1, y1) (x2, y2)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
481 if x2 >= x1 and y2 >= y1:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
482 if not ((x1 <= pt.y() and pt.y() <= x2) and (y1 <= pt.x() and pt.x() <= y2)):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
483 pt.setX(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
484 pt.setY(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
485 elif x2 < x1 and y2 >= y1:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
486 if not ((x2 <= pt.y() and pt.y() <= x1) and (y1 <= pt.x() and pt.x() <= y2)):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
487 pt.setX(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
488 pt.setY(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
489 elif x2 >= x1 and y2 < y1:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
490 if not ((x1 <= pt.y() and pt.y() <= x2) and (y2 <= pt.x() and pt.x() <= y1)):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
491 pt.setX(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
492 pt.setY(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
493 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
494 if not ((x2 <= pt.y() and pt.y() <= x1) and (y2 <= pt.x() and pt.x() <= y1)):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
495 pt.setX(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
496 pt.setY(-1.0)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
497
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
498 return pt
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
499
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
500 def widgetMoved(self):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
501 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
502 Public method to recalculate the association after a widget was moved.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
503 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
504 self.calculateEndingPoints()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
505
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
506 def unassociate(self):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
507 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
508 Public method to unassociate from the widgets.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
509 """
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
510 self.itemA.removeAssociation(self)
96
9624a110667d Started to clean up the code supported by py3flakes.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 51
diff changeset
511 self.itemB.removeAssociation(self)
2030
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
512
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
513 def buildAssociationItemDataString(self):
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
514 """
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
515 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: 2024
diff changeset
516
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
517 This string should be built like "attribute=value" with pairs separated
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
518 by ", ". value must not contain ", " or newlines.
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
519
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
520 @return persistence data (string)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
521 """
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
522 entries = [
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
523 "src={0}".format(self.itemA.getId()),
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
524 "dst={0}".format(self.itemB.getId()),
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
525 "type={0}".format(self.assocType),
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
526 "topToBottom={0}".format(self.topToBottom)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
527 ]
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
528 return ", ".join(entries)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
529
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
530 @classmethod
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
531 def parseAssociationItemDataString(cls, data):
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
532 """
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
533 Class method to parse the given persistence data.
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
534
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
535 @param data persisted data to be parsed (string)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
536 @return tuple with the IDs of the source and destination items,
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
537 the association type and a flag indicating to associate from top
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
538 to bottom (integer, integer, integer, boolean)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
539 """
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
540 src = -1
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
541 dst = -1
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
542 assocType = Normal
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
543 topToBottom = False
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
544 for entry in data.split(", "):
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
545 if "=" in entry:
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
546 key, value = entry.split("=", 1)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
547 if key == "src":
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
548 src = int(value)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
549 elif key == "dst":
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
550 dst = int(value)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
551 elif key == "type":
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
552 assocType = value
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
553 elif key == "topToBottom":
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
554 topToBottom = Utilities.toBool(value)
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
555
db11a2fe9bbc Implemented functions to save the UML graphics to disc.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2024
diff changeset
556 return src, dst, assocType, topToBottom

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