diff -r 4e8b98454baa -r 800c432b34c8 eric7/Graphics/ImportsDiagramBuilder.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/Graphics/ImportsDiagramBuilder.py Sat May 15 18:45:04 2021 +0200
@@ -0,0 +1,423 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2007 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a dialog showing an imports diagram of a package.
+"""
+
+import glob
+import os
+
+from PyQt5.QtWidgets import QApplication, QGraphicsTextItem
+
+from E5Gui.E5ProgressDialog import E5ProgressDialog
+
+from .UMLDiagramBuilder import UMLDiagramBuilder
+
+import Utilities
+import Preferences
+
+
+class ImportsDiagramBuilder(UMLDiagramBuilder):
+ """
+ Class implementing a builder for imports diagrams of a package.
+
+ Note: Only package internal imports are shown in order to maintain
+ some readability.
+ """
+ def __init__(self, dialog, view, project, package,
+ showExternalImports=False):
+ """
+ Constructor
+
+ @param dialog reference to the UML dialog
+ @type UMLDialog
+ @param view reference to the view object
+ @type UMLGraphicsView
+ @param project reference to the project object
+ @type Project
+ @param package name of a python package to show the import
+ relationships
+ @type str
+ @param showExternalImports flag indicating to show exports from
+ outside the package
+ @type bool
+ """
+ super().__init__(dialog, view, project)
+ self.setObjectName("ImportsDiagram")
+
+ self.showExternalImports = showExternalImports
+ self.packagePath = os.path.abspath(package)
+
+ self.__relPackagePath = (
+ self.project.getRelativePath(self.packagePath)
+ if self.project.isProjectSource(self.packagePath) else
+ ""
+ )
+
+ def initialize(self):
+ """
+ Public method to initialize the object.
+ """
+ self.package = os.path.splitdrive(self.packagePath)[1].replace(
+ os.sep, '.')[1:]
+ hasInit = True
+ ppath = self.packagePath
+ while hasInit:
+ ppath = os.path.dirname(ppath)
+ hasInit = len(glob.glob(os.path.join(ppath, '__init__.*'))) > 0
+ self.shortPackage = self.packagePath.replace(ppath, '').replace(
+ os.sep, '.')[1:]
+
+ pname = self.project.getProjectName()
+ name = (
+ self.tr("Imports Diagramm {0}: {1}").format(
+ pname, self.project.getRelativePath(self.packagePath))
+ if pname else
+ self.tr("Imports Diagramm: {0}").format(self.packagePath)
+ )
+ self.umlView.setDiagramName(name)
+
+ def __buildModulesDict(self):
+ """
+ Private method to build a dictionary of modules contained in the
+ package.
+
+ @return dictionary of modules contained in the package
+ @rtype dict
+ """
+ import Utilities.ModuleParser
+ extensions = (
+ Preferences.getPython("Python3Extensions")
+ )
+ moduleDict = {}
+ modules = []
+ for ext in (
+ Preferences.getPython("Python3Extensions")
+ ):
+ modules.extend(glob.glob(Utilities.normjoinpath(
+ self.packagePath, '*{0}'.format(ext))))
+
+ tot = len(modules)
+ progress = E5ProgressDialog(
+ self.tr("Parsing modules..."),
+ None, 0, tot, self.tr("%v/%m Modules"), self.parent())
+ progress.setWindowTitle(self.tr("Imports Diagramm"))
+ try:
+ progress.show()
+ QApplication.processEvents()
+ for prog, module in enumerate(modules):
+ progress.setValue(prog)
+ QApplication.processEvents()
+ try:
+ mod = Utilities.ModuleParser.readModule(
+ module, extensions=extensions, caching=False)
+ except ImportError:
+ continue
+ else:
+ name = mod.name
+ if name.startswith(self.package):
+ name = name[len(self.package) + 1:]
+ moduleDict[name] = mod
+ finally:
+ progress.setValue(tot)
+ progress.deleteLater()
+ return moduleDict
+
+ def buildDiagram(self):
+ """
+ Public method to build the modules shapes of the diagram.
+ """
+ initlist = glob.glob(os.path.join(self.packagePath, '__init__.*'))
+ if len(initlist) == 0:
+ ct = QGraphicsTextItem(None)
+ ct.setHtml(self.buildErrorMessage(
+ self.tr("The directory <b>'{0}'</b> is not a Python"
+ " package.").format(self.package)
+ ))
+ self.scene.addItem(ct)
+ return
+
+ self.__shapes = {}
+
+ modules = self.__buildModulesDict()
+ externalMods = []
+ packageList = self.shortPackage.split('.')
+ packageListLen = len(packageList)
+ for module in sorted(modules.keys()):
+ impLst = []
+ for importName in modules[module].imports:
+ n = (
+ importName[len(self.package) + 1:]
+ if importName.startswith(self.package) else
+ importName
+ )
+ if importName in modules:
+ impLst.append(n)
+ elif self.showExternalImports:
+ impLst.append(n)
+ if n not in externalMods:
+ externalMods.append(n)
+ for importName in list(modules[module].from_imports.keys()):
+ if importName.startswith('.'):
+ dots = len(importName) - len(importName.lstrip('.'))
+ if dots == 1:
+ n = importName[1:]
+ importName = n
+ else:
+ if self.showExternalImports:
+ n = '.'.join(
+ packageList[:packageListLen - dots + 1] +
+ [importName[dots:]])
+ else:
+ n = importName
+ elif importName.startswith(self.package):
+ n = importName[len(self.package) + 1:]
+ else:
+ n = importName
+ if importName in modules:
+ impLst.append(n)
+ elif self.showExternalImports:
+ impLst.append(n)
+ if n not in externalMods:
+ externalMods.append(n)
+
+ classNames = []
+ for class_ in list(modules[module].classes.keys()):
+ className = modules[module].classes[class_].name
+ if className not in classNames:
+ classNames.append(className)
+ shape = self.__addModule(module, classNames, 0.0, 0.0)
+ self.__shapes[module] = (shape, impLst)
+
+ for module in externalMods:
+ shape = self.__addModule(module, [], 0.0, 0.0)
+ self.__shapes[module] = (shape, [])
+
+ # build a list of routes
+ nodes = []
+ routes = []
+ for module in self.__shapes:
+ nodes.append(module)
+ for rel in self.__shapes[module][1]:
+ route = (module, rel)
+ if route not in routes:
+ routes.append(route)
+
+ self.__arrangeNodes(nodes, routes[:])
+ self.__createAssociations(routes)
+ self.umlView.autoAdjustSceneSize(limit=True)
+
+ def __addModule(self, name, classes, x, y):
+ """
+ Private method to add a module to the diagram.
+
+ @param name module name to be shown
+ @type str
+ @param classes list of class names contained in the module
+ @type list of str
+ @param x x-coordinate
+ @type float
+ @param y y-coordinate
+ @type float
+ @return reference to the imports item
+ @rtype ModuleItem
+ """
+ from .ModuleItem import ModuleItem, ModuleModel
+ classes.sort()
+ impM = ModuleModel(name, classes)
+ impW = ModuleItem(impM, x, y, scene=self.scene,
+ colors=self.umlView.getDrawingColors())
+ impW.setId(self.umlView.getItemId())
+ return impW
+
+ def __arrangeNodes(self, nodes, routes, whiteSpaceFactor=1.2):
+ """
+ Private method to arrange the shapes on the canvas.
+
+ The algorithm is borrowed from Boa Constructor.
+
+ @param nodes list of nodes to arrange
+ @type list of str
+ @param routes list of routes
+ @type list of tuple of (str, str)
+ @param whiteSpaceFactor factor to increase whitespace between
+ items
+ @type float
+ """
+ from . import GraphicsUtilities
+ generations = GraphicsUtilities.sort(nodes, routes)
+
+ # calculate width and height of all elements
+ sizes = []
+ for generation in generations:
+ sizes.append([])
+ for child in generation:
+ sizes[-1].append(
+ self.__shapes[child][0].sceneBoundingRect())
+
+ # calculate total width and total height
+ width = 0
+ height = 0
+ widths = []
+ heights = []
+ for generation in sizes:
+ currentWidth = 0
+ currentHeight = 0
+
+ for rect in generation:
+ if rect.height() > currentHeight:
+ currentHeight = rect.height()
+ currentWidth += rect.width()
+
+ # update totals
+ if currentWidth > width:
+ width = currentWidth
+ height += currentHeight
+
+ # store generation info
+ widths.append(currentWidth)
+ heights.append(currentHeight)
+
+ # add in some whitespace
+ width *= whiteSpaceFactor
+ height = height * whiteSpaceFactor - 20
+ verticalWhiteSpace = 40.0
+
+ sceneRect = self.umlView.sceneRect()
+ width += 50.0
+ height += 50.0
+ swidth = sceneRect.width() if width < sceneRect.width() else width
+ sheight = sceneRect.height() if height < sceneRect.height() else height
+ self.umlView.setSceneSize(swidth, sheight)
+
+ # distribute each generation across the width and the
+ # generations across height
+ y = 10.0
+ for currentWidth, currentHeight, generation in (
+ zip(reversed(widths), reversed(heights), reversed(generations))
+ ):
+ x = 10.0
+ # whiteSpace is the space between any two elements
+ whiteSpace = (
+ (width - currentWidth - 20) /
+ (len(generation) - 1.0 or 2.0)
+ )
+ for name in generation:
+ shape = self.__shapes[name][0]
+ shape.setPos(x, y)
+ rect = shape.sceneBoundingRect()
+ x = x + rect.width() + whiteSpace
+ y = y + currentHeight + verticalWhiteSpace
+
+ def __createAssociations(self, routes):
+ """
+ Private method to generate the associations between the module shapes.
+
+ @param routes list of associations
+ @type list of tuple of (str, str)
+ """
+ from .AssociationItem import AssociationItem, AssociationType
+ for route in routes:
+ assoc = AssociationItem(
+ self.__shapes[route[0]][0],
+ self.__shapes[route[1]][0],
+ AssociationType.IMPORTS,
+ colors=self.umlView.getDrawingColors())
+ self.scene.addItem(assoc)
+
+ def getPersistenceData(self):
+ """
+ Public method to get a string for data to be persisted.
+
+ @return persisted data string
+ @rtype str
+ """
+ return "package={0}, show_external={1}".format(
+ self.packagePath, self.showExternalImports)
+
+ def parsePersistenceData(self, version, data):
+ """
+ Public method to parse persisted data.
+
+ @param version version of the data
+ @type str
+ @param data persisted data to be parsed
+ @type str
+ @return flag indicating success
+ @rtype bool
+ """
+ parts = data.split(", ")
+ if (
+ len(parts) != 2 or
+ not parts[0].startswith("package=") or
+ not parts[1].startswith("show_external=")
+ ):
+ return False
+
+ self.packagePath = parts[0].split("=", 1)[1].strip()
+ self.showExternalImports = Utilities.toBool(
+ parts[1].split("=", 1)[1].strip())
+
+ self.initialize()
+
+ return True
+
+ def toDict(self):
+ """
+ Public method to collect data to be persisted.
+
+ @return dictionary containing data to be persisted
+ @rtype dict
+ """
+ data = {
+ "project_name": self.project.getProjectName(),
+ "show_external": self.showExternalImports,
+ }
+
+ data["package"] = (
+ Utilities.fromNativeSeparators(self.__relPackagePath)
+ if self.__relPackagePath else
+ Utilities.fromNativeSeparators(self.packagePath)
+ )
+
+ return data
+
+ def fromDict(self, version, data):
+ """
+ Public method to populate the class with data persisted by 'toDict()'.
+
+ @param version version of the data
+ @type str
+ @param data dictionary containing the persisted data
+ @type dict
+ @return tuple containing a flag indicating success and an info
+ message in case the diagram belongs to a different project
+ @rtype tuple of (bool, str)
+ """
+ try:
+ self.showExternalImports = data["show_external"]
+
+ packagePath = Utilities.toNativeSeparators(data["package"])
+ if os.path.isabs(packagePath):
+ self.packagePath = packagePath
+ self.__relPackagePath = ""
+ else:
+ # relative package paths indicate a project package
+ if data["project_name"] != self.project.getProjectName():
+ msg = self.tr(
+ "<p>The diagram belongs to project <b>{0}</b>."
+ " Please open it and try again.</p>"
+ ).format(data["project_name"])
+ return False, msg
+
+ self.__relPackagePath = packagePath
+ self.package = self.project.getAbsolutePath(packagePath)
+ except KeyError:
+ return False, ""
+
+ self.initialize()
+
+ return True, ""
