eric6/DataViews/CodeMetricsDialog.py

changeset 6942
2602857055c5
parent 6645
ad476851d7e0
child 7198
684261ef2165
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/DataViews/CodeMetricsDialog.py	Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,303 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2003 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a code metrics dialog.
+"""
+
+from __future__ import unicode_literals
+
+import os
+import fnmatch
+
+from PyQt5.QtCore import pyqtSlot, Qt, QLocale
+from PyQt5.QtWidgets import QDialog, QDialogButtonBox, QMenu, QHeaderView, \
+    QTreeWidgetItem, QApplication
+
+from .Ui_CodeMetricsDialog import Ui_CodeMetricsDialog
+from . import CodeMetrics
+
+import Utilities
+from Globals import qVersionTuple
+
+
+class CodeMetricsDialog(QDialog, Ui_CodeMetricsDialog):
+    """
+    Class implementing a dialog to display the code metrics.
+    """
+    def __init__(self, parent=None):
+        """
+        Constructor
+        
+        @param parent parent widget (QWidget)
+        """
+        super(CodeMetricsDialog, self).__init__(parent)
+        self.setupUi(self)
+        self.setWindowFlags(Qt.Window)
+        
+        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True)
+        
+        self.summaryList.headerItem().setText(
+            self.summaryList.columnCount(), "")
+        self.summaryList.header().resizeSection(0, 200)
+        self.summaryList.header().resizeSection(1, 100)
+        
+        self.resultList.headerItem().setText(self.resultList.columnCount(), "")
+        
+        self.cancelled = False
+        
+        self.__menu = QMenu(self)
+        self.__menu.addAction(self.tr("Collapse all"),
+                              self.__resultCollapse)
+        self.__menu.addAction(self.tr("Expand all"), self.__resultExpand)
+        self.resultList.setContextMenuPolicy(Qt.CustomContextMenu)
+        self.resultList.customContextMenuRequested.connect(
+            self.__showContextMenu)
+        
+        self.__fileList = []
+        self.__project = None
+        self.filterFrame.setVisible(False)
+        
+    def __resizeResultColumns(self):
+        """
+        Private method to resize the list columns.
+        """
+        self.resultList.header().resizeSections(QHeaderView.ResizeToContents)
+        self.resultList.header().setStretchLastSection(True)
+        
+    def __createResultItem(self, parent, values):
+        """
+        Private slot to create a new item in the result list.
+        
+        @param parent parent of the new item (QTreeWidget or QTreeWidgetItem)
+        @param values values to be displayed (list)
+        @return the generated item
+        """
+        data = [values[0]]
+        for value in values[1:]:
+            try:
+                data.append("{0:5}".format(int(value)))
+            except ValueError:
+                data.append(value)
+        itm = QTreeWidgetItem(parent, data)
+        for col in range(1, 7):
+            itm.setTextAlignment(col, Qt.Alignment(Qt.AlignRight))
+        return itm
+        
+    def __resizeSummaryColumns(self):
+        """
+        Private method to resize the list columns.
+        """
+        self.summaryList.header().resizeSections(QHeaderView.ResizeToContents)
+        self.summaryList.header().setStretchLastSection(True)
+        
+    def __createSummaryItem(self, col0, col1):
+        """
+        Private slot to create a new item in the summary list.
+        
+        @param col0 string for column 0 (string)
+        @param col1 string for column 1 (string)
+        """
+        itm = QTreeWidgetItem(self.summaryList, [col0, col1])
+        itm.setTextAlignment(1, Qt.Alignment(Qt.AlignRight))
+        
+    def prepare(self, fileList, project):
+        """
+        Public method to prepare the dialog with a list of filenames.
+        
+        @param fileList list of filenames (list of strings)
+        @param project reference to the project object (Project)
+        """
+        self.__fileList = fileList[:]
+        self.__project = project
+        
+        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(True)
+        self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Close).setDefault(True)
+        
+        self.filterFrame.setVisible(True)
+        
+        self.__data = self.__project.getData("OTHERTOOLSPARMS", "CodeMetrics")
+        if self.__data is None or "ExcludeFiles" not in self.__data:
+            self.__data = {"ExcludeFiles": ""}
+        self.excludeFilesEdit.setText(self.__data["ExcludeFiles"])
+        
+    def start(self, fn):
+        """
+        Public slot to start the code metrics determination.
+        
+        @param fn file or list of files or directory to show
+                the code metrics for (string or list of strings)
+        """
+        self.cancelled = False
+        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(True)
+        self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True)
+        QApplication.processEvents()
+        
+        loc = QLocale()
+        if isinstance(fn, list):
+            files = fn
+        elif os.path.isdir(fn):
+            files = Utilities.direntries(fn, True, '*.py', False)
+        else:
+            files = [fn]
+        files.sort()
+        # check for missing files
+        for f in files[:]:
+            if not os.path.exists(f):
+                files.remove(f)
+        
+        self.checkProgress.setMaximum(len(files))
+        QApplication.processEvents()
+        
+        total = {}
+        CodeMetrics.summarize(total, 'files', len(files))
+        
+        progress = 0
+        
+        try:
+            # disable updates of the list for speed
+            self.resultList.setUpdatesEnabled(False)
+            self.resultList.setSortingEnabled(False)
+            
+            # now go through all the files
+            for file in files:
+                if self.cancelled:
+                    return
+                
+                stats = CodeMetrics.analyze(file, total)
+                
+                v = self.__getValues(loc, stats, 'TOTAL ')
+                fitm = self.__createResultItem(self.resultList, [file] + v)
+                
+                identifiers = stats.identifiers
+                for identifier in identifiers:
+                    v = self.__getValues(loc, stats, identifier)
+                    
+                    self.__createResultItem(fitm, [identifier] + v)
+                self.resultList.expandItem(fitm)
+                
+                progress += 1
+                self.checkProgress.setValue(progress)
+                QApplication.processEvents()
+        finally:
+            # reenable updates of the list
+            self.resultList.setSortingEnabled(True)
+            self.resultList.setUpdatesEnabled(True)
+        self.__resizeResultColumns()
+        
+        # now do the summary stuff
+        self.__createSummaryItem(self.tr("files"),
+                                 loc.toString(total['files']))
+        self.__createSummaryItem(self.tr("lines"),
+                                 loc.toString(total['lines']))
+        self.__createSummaryItem(self.tr("bytes"),
+                                 loc.toString(total['bytes']))
+        self.__createSummaryItem(self.tr("comments"),
+                                 loc.toString(total['comments']))
+        self.__createSummaryItem(self.tr("comment lines"),
+                                 loc.toString(total['commentlines']))
+        self.__createSummaryItem(self.tr("empty lines"),
+                                 loc.toString(total['empty lines']))
+        self.__createSummaryItem(self.tr("non-commentary lines"),
+                                 loc.toString(total['non-commentary lines']))
+        self.__resizeSummaryColumns()
+        self.__finish()
+        
+    def __getValues(self, loc, stats, identifier):
+        """
+        Private method to extract the code metric values.
+        
+        @param loc reference to the locale object (QLocale)
+        @param stats reference to the code metric statistics object
+        @param identifier identifier to get values for
+        @return list of values suitable for display (list of strings)
+        """
+        counters = stats.counters.get(identifier, {})
+        v = []
+        for key in ('start', 'end', 'lines', 'nloc', 'commentlines', 'empty'):
+            if counters.get(key, 0):
+                v.append(loc.toString(counters[key]))
+            else:
+                v.append('')
+        return v
+        
+    def __finish(self):
+        """
+        Private slot called when the action finished or the user pressed the
+        button.
+        """
+        self.cancelled = True
+        self.buttonBox.button(QDialogButtonBox.Close).setEnabled(True)
+        self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(False)
+        self.buttonBox.button(QDialogButtonBox.Close).setDefault(True)
+        
+        if qVersionTuple() >= (5, 0, 0):
+            self.resultList.header().setSectionResizeMode(
+                QHeaderView.Interactive)
+            self.summaryList.header().setSectionResizeMode(
+                QHeaderView.Interactive)
+        else:
+            self.resultList.header().setResizeMode(QHeaderView.Interactive)
+            self.summaryList.header().setResizeMode(QHeaderView.Interactive)
+        
+    def on_buttonBox_clicked(self, button):
+        """
+        Private slot called by a button of the button box clicked.
+        
+        @param button button that was clicked (QAbstractButton)
+        """
+        if button == self.buttonBox.button(QDialogButtonBox.Close):
+            self.close()
+        elif button == self.buttonBox.button(QDialogButtonBox.Cancel):
+            self.__finish()
+        
+    @pyqtSlot()
+    def on_startButton_clicked(self):
+        """
+        Private slot to start a code metrics run.
+        """
+        fileList = self.__fileList[:]
+        
+        filterString = self.excludeFilesEdit.text()
+        if "ExcludeFiles" not in self.__data or \
+           filterString != self.__data["ExcludeFiles"]:
+            self.__data["ExcludeFiles"] = filterString
+            self.__project.setData("OTHERTOOLSPARMS", "CodeMetrics",
+                                   self.__data)
+        filterList = filterString.split(",")
+        if filterList:
+            for filterString in filterList:
+                fileList = [f for f in fileList
+                            if not fnmatch.fnmatch(f, filterString.strip())]
+        
+        self.resultList.clear()
+        self.summaryList.clear()
+        self.start(fileList)
+        
+    def __showContextMenu(self, coord):
+        """
+        Private slot to show the context menu of the listview.
+        
+        @param coord the position of the mouse pointer (QPoint)
+        """
+        if self.resultList.topLevelItemCount() > 0:
+            self.__menu.popup(self.mapToGlobal(coord))
+        
+    def __resultCollapse(self):
+        """
+        Private slot to collapse all entries of the resultlist.
+        """
+        for index in range(self.resultList.topLevelItemCount()):
+            self.resultList.topLevelItem(index).setExpanded(False)
+        
+    def __resultExpand(self):
+        """
+        Private slot to expand all entries of the resultlist.
+        """
+        for index in range(self.resultList.topLevelItemCount()):
+            self.resultList.topLevelItem(index).setExpanded(True)

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