Mercurial Repositories > eric / file comparison
comparison: eric7/Graphics/ModuleItem.py
eric7/Graphics/ModuleItem.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8295
- 3f5e8b0a338e
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2007 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a module item. | |
| 8 """ | |
| 9 | |
| 10 from PyQt5.QtGui import QFont | |
| 11 from PyQt5.QtWidgets import QGraphicsSimpleTextItem, QStyle | |
| 12 | |
| 13 from .UMLItem import UMLModel, UMLItem | |
| 14 | |
| 15 | |
| 16 class ModuleModel(UMLModel): | |
| 17 """ | |
| 18 Class implementing the module model. | |
| 19 """ | |
| 20 def __init__(self, name, classlist=None): | |
| 21 """ | |
| 22 Constructor | |
| 23 | |
| 24 @param name the module name | |
| 25 @type str | |
| 26 @param classlist list of class names | |
| 27 @type list of str | |
| 28 """ | |
| 29 super().__init__(name) | |
| 30 | |
| 31 self.classlist = [] if classlist is None else classlist[:] | |
| 32 | |
| 33 def addClass(self, classname): | |
| 34 """ | |
| 35 Public method to add a class to the module model. | |
| 36 | |
| 37 @param classname class name to be added | |
| 38 @type str | |
| 39 """ | |
| 40 self.classlist.append(classname) | |
| 41 | |
| 42 def getClasses(self): | |
| 43 """ | |
| 44 Public method to retrieve the classes of the module. | |
| 45 | |
| 46 @return list of class names | |
| 47 @rtype list of str | |
| 48 """ | |
| 49 return self.classlist[:] | |
| 50 | |
| 51 | |
| 52 class ModuleItem(UMLItem): | |
| 53 """ | |
| 54 Class implementing a module item. | |
| 55 """ | |
| 56 ItemType = "module" | |
| 57 | |
| 58 def __init__(self, model=None, x=0, y=0, rounded=False, colors=None, | |
| 59 parent=None, scene=None): | |
| 60 """ | |
| 61 Constructor | |
| 62 | |
| 63 @param model module model containing the module data | |
| 64 @type ModuleModel | |
| 65 @param x x-coordinate | |
| 66 @type int | |
| 67 @param y y-coordinate | |
| 68 @type int | |
| 69 @param rounded flag indicating a rounded corner | |
| 70 @type bool | |
| 71 @param colors tuple containing the foreground and background colors | |
| 72 @type tuple of (QColor, QColor) | |
| 73 @param parent reference to the parent object | |
| 74 @type QGraphicsItem | |
| 75 @param scene reference to the scene object | |
| 76 @type QGraphicsScene | |
| 77 """ | |
| 78 UMLItem.__init__(self, model, x, y, rounded, colors, parent) | |
| 79 | |
| 80 if scene: | |
| 81 scene.addItem(self) | |
| 82 | |
| 83 if self.model: | |
| 84 self.__createTexts() | |
| 85 self.__calculateSize() | |
| 86 | |
| 87 def __createTexts(self): | |
| 88 """ | |
| 89 Private method to create the text items of the module item. | |
| 90 """ | |
| 91 if self.model is None: | |
| 92 return | |
| 93 | |
| 94 boldFont = QFont(self.font) | |
| 95 boldFont.setBold(True) | |
| 96 | |
| 97 classes = self.model.getClasses() | |
| 98 | |
| 99 x = self.margin + self.rect().x() | |
| 100 y = self.margin + self.rect().y() | |
| 101 self.header = QGraphicsSimpleTextItem(self) | |
| 102 self.header.setBrush(self._colors[0]) | |
| 103 self.header.setFont(boldFont) | |
| 104 self.header.setText(self.model.getName()) | |
| 105 self.header.setPos(x, y) | |
| 106 y += self.header.boundingRect().height() + self.margin | |
| 107 txt = "\n".join(classes) if classes else " " | |
| 108 self.classes = QGraphicsSimpleTextItem(self) | |
| 109 self.classes.setBrush(self._colors[0]) | |
| 110 self.classes.setFont(self.font) | |
| 111 self.classes.setText(txt) | |
| 112 self.classes.setPos(x, y) | |
| 113 | |
| 114 def __calculateSize(self): | |
| 115 """ | |
| 116 Private method to calculate the size of the module item. | |
| 117 """ | |
| 118 if self.model is None: | |
| 119 return | |
| 120 | |
| 121 width = self.header.boundingRect().width() | |
| 122 height = self.header.boundingRect().height() | |
| 123 if self.classes: | |
| 124 width = max(width, self.classes.boundingRect().width()) | |
| 125 height += self.classes.boundingRect().height() | |
| 126 self.setSize(width + 2 * self.margin, height + 2 * self.margin) | |
| 127 | |
| 128 def setModel(self, model): | |
| 129 """ | |
| 130 Public method to set the module model. | |
| 131 | |
| 132 @param model module model containing the module data | |
| 133 @type ModuleModel | |
| 134 """ | |
| 135 self.scene().removeItem(self.header) | |
| 136 self.header = None | |
| 137 if self.classes: | |
| 138 self.scene().removeItem(self.classes) | |
| 139 self.meths = None | |
| 140 self.model = model | |
| 141 self.__createTexts() | |
| 142 self.__calculateSize() | |
| 143 | |
| 144 def paint(self, painter, option, widget=None): | |
| 145 """ | |
| 146 Public method to paint the item in local coordinates. | |
| 147 | |
| 148 @param painter reference to the painter object | |
| 149 @type QPainter | |
| 150 @param option style options | |
| 151 @type QStyleOptionGraphicsItem | |
| 152 @param widget optional reference to the widget painted on | |
| 153 @type QWidget | |
| 154 """ | |
| 155 pen = self.pen() | |
| 156 if ( | |
| 157 (option.state & QStyle.StateFlag.State_Selected) == | |
| 158 QStyle.State(QStyle.StateFlag.State_Selected) | |
| 159 ): | |
| 160 pen.setWidth(2) | |
| 161 else: | |
| 162 pen.setWidth(1) | |
| 163 | |
| 164 painter.setPen(pen) | |
| 165 painter.setBrush(self.brush()) | |
| 166 painter.setFont(self.font) | |
| 167 | |
| 168 offsetX = self.rect().x() | |
| 169 offsetY = self.rect().y() | |
| 170 w = self.rect().width() | |
| 171 h = self.rect().height() | |
| 172 | |
| 173 painter.drawRect(offsetX, offsetY, w, h) | |
| 174 y = self.margin + self.header.boundingRect().height() | |
| 175 painter.drawLine(offsetX, offsetY + y, offsetX + w - 1, offsetY + y) | |
| 176 | |
| 177 self.adjustAssociations() | |
| 178 | |
| 179 def buildItemDataString(self): | |
| 180 """ | |
| 181 Public method to build a string to persist the specific item data. | |
| 182 | |
| 183 This string must start with ", " and should be built like | |
| 184 "attribute=value" with pairs separated by ", ". value must not | |
| 185 contain ", " or newlines. | |
| 186 | |
| 187 @return persistence data | |
| 188 @rtype str | |
| 189 """ | |
| 190 entries = [ | |
| 191 "name={0}".format(self.model.getName()), | |
| 192 ] | |
| 193 classes = self.model.getClasses() | |
| 194 if classes: | |
| 195 entries.append("classes={0}".format("||".join(classes))) | |
| 196 | |
| 197 return ", " + ", ".join(entries) | |
| 198 | |
| 199 def parseItemDataString(self, version, data): | |
| 200 """ | |
| 201 Public method to parse the given persistence data. | |
| 202 | |
| 203 @param version version of the data | |
| 204 @type str | |
| 205 @param data persisted data to be parsed | |
| 206 @type str | |
| 207 @return flag indicating success | |
| 208 @rtype bool | |
| 209 """ | |
| 210 parts = data.split(", ") | |
| 211 if len(parts) < 1: | |
| 212 return False | |
| 213 | |
| 214 name = "" | |
| 215 classes = [] | |
| 216 | |
| 217 for part in parts: | |
| 218 key, value = part.split("=", 1) | |
| 219 if key == "name": | |
| 220 name = value.strip() | |
| 221 elif key == "classes": | |
| 222 classes = value.strip().split("||") | |
| 223 else: | |
| 224 return False | |
| 225 | |
| 226 self.model = ModuleModel(name, classes) | |
| 227 self.__createTexts() | |
| 228 self.__calculateSize() | |
| 229 | |
| 230 return True | |
| 231 | |
| 232 def toDict(self): | |
| 233 """ | |
| 234 Public method to collect data to be persisted. | |
| 235 | |
| 236 @return dictionary containing data to be persisted | |
| 237 @rtype dict | |
| 238 """ | |
| 239 return { | |
| 240 "id": self.getId(), | |
| 241 "x": self.x(), | |
| 242 "y": self.y(), | |
| 243 "type": self.getItemType(), | |
| 244 "model_name": self.model.getName(), | |
| 245 "classes": self.model.getClasses(), | |
| 246 } | |
| 247 | |
| 248 @classmethod | |
| 249 def fromDict(cls, data, colors=None): | |
| 250 """ | |
| 251 Class method to create a class item from persisted data. | |
| 252 | |
| 253 @param data dictionary containing the persisted data as generated | |
| 254 by toDict() | |
| 255 @type dict | |
| 256 @param colors tuple containing the foreground and background colors | |
| 257 @type tuple of (QColor, QColor) | |
| 258 @return created class item | |
| 259 @rtype ClassItem | |
| 260 """ | |
| 261 try: | |
| 262 model = ModuleModel(data["model_name"], | |
| 263 data["classes"]) | |
| 264 itm = cls(model, | |
| 265 x=0, | |
| 266 y=0, | |
| 267 colors=colors) | |
| 268 itm.setPos(data["x"], data["y"]) | |
| 269 itm.setId(data["id"]) | |
| 270 return itm | |
| 271 except KeyError: | |
| 272 return None |
