diff -r 4e8b98454baa -r 800c432b34c8 eric7/QScintilla/EditorOutline.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/QScintilla/EditorOutline.py Sat May 15 18:45:04 2021 +0200
@@ -0,0 +1,493 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2020 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing an outline widget for source code navigation of the editor.
+"""
+
+import contextlib
+
+from PyQt5.QtCore import pyqtSlot, Qt, QCoreApplication, QModelIndex, QPoint
+from PyQt5.QtWidgets import QTreeView, QAbstractItemView, QMenu, QApplication
+
+from UI.BrowserSortFilterProxyModel import BrowserSortFilterProxyModel
+from UI.BrowserModel import (
+ BrowserImportsItem, BrowserGlobalsItem, BrowserClassAttributeItem,
+ BrowserImportItem
+)
+
+from .EditorOutlineModel import EditorOutlineModel
+
+import Preferences
+
+
+class EditorOutlineView(QTreeView):
+ """
+ Class implementing an outline widget for source code navigation of the
+ editor.
+ """
+ def __init__(self, editor, populate=True, parent=None):
+ """
+ Constructor
+
+ @param editor reference to the editor widget
+ @type Editor
+ @param populate flag indicating to populate the outline
+ @type bool
+ @param parent reference to the parent widget
+ @type QWidget
+ """
+ super().__init__(parent)
+
+ self.__model = EditorOutlineModel(editor, populate=populate)
+ self.__sortModel = BrowserSortFilterProxyModel()
+ self.__sortModel.setSourceModel(self.__model)
+ self.setModel(self.__sortModel)
+
+ self.setRootIsDecorated(True)
+ self.setAlternatingRowColors(True)
+
+ header = self.header()
+ header.setSortIndicator(0, Qt.SortOrder.AscendingOrder)
+ header.setSortIndicatorShown(True)
+ header.setSectionsClickable(True)
+ self.setHeaderHidden(True)
+
+ self.setSortingEnabled(True)
+
+ self.setSelectionMode(QAbstractItemView.SelectionMode.SingleSelection)
+ self.setSelectionBehavior(
+ QAbstractItemView.SelectionBehavior.SelectRows)
+
+ self.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
+ self.customContextMenuRequested.connect(self.__contextMenuRequested)
+ self.__createPopupMenus()
+
+ self.activated.connect(self.__gotoItem)
+ self.expanded.connect(self.__resizeColumns)
+ self.collapsed.connect(self.__resizeColumns)
+
+ self.__resizeColumns()
+
+ self.__expandedNames = []
+ self.__currentItemName = ""
+ self.__signalsConnected = False
+
+ def setActive(self, active):
+ """
+ Public method to activate or deactivate the outline view.
+
+ @param active flag indicating the requested action
+ @type bool
+ """
+ if active and not self.__signalsConnected:
+ editor = self.__model.editor()
+ editor.refreshed.connect(self.repopulate)
+ editor.languageChanged.connect(self.__editorLanguageChanged)
+ editor.editorRenamed.connect(self.__editorRenamed)
+ editor.cursorLineChanged.connect(self.__editorCursorLineChanged)
+
+ self.__model.repopulate()
+ self.__resizeColumns()
+
+ line, _ = editor.getCursorPosition()
+ self.__editorCursorLineChanged(line)
+
+ elif not active and self.__signalsConnected:
+ editor = self.__model.editor()
+ editor.refreshed.disconnect(self.repopulate)
+ editor.languageChanged.disconnect(self.__editorLanguageChanged)
+ editor.editorRenamed.disconnect(self.__editorRenamed)
+ editor.cursorLineChanged.disconnect(self.__editorCursorLineChanged)
+
+ self.__model.clear()
+
+ @pyqtSlot()
+ def __resizeColumns(self):
+ """
+ Private slot to resize the view when items get expanded or collapsed.
+ """
+ self.resizeColumnToContents(0)
+
+ def isPopulated(self):
+ """
+ Public method to check, if the model is populated.
+
+ @return flag indicating a populated model
+ @rtype bool
+ """
+ return self.__model.isPopulated()
+
+ @pyqtSlot()
+ def repopulate(self):
+ """
+ Public slot to repopulate the model.
+ """
+ if self.isPopulated():
+ self.__prepareRepopulate()
+ self.__model.repopulate()
+ self.__completeRepopulate()
+
+ @pyqtSlot()
+ def __prepareRepopulate(self):
+ """
+ Private slot to prepare to repopulate the outline view.
+ """
+ itm = self.__currentItem()
+ if itm is not None:
+ self.__currentItemName = itm.data(0)
+
+ self.__expandedNames = []
+
+ childIndex = self.model().index(0, 0)
+ while childIndex.isValid():
+ if self.isExpanded(childIndex):
+ self.__expandedNames.append(
+ self.model().item(childIndex).data(0))
+ childIndex = self.indexBelow(childIndex)
+
+ @pyqtSlot()
+ def __completeRepopulate(self):
+ """
+ Private slot to complete the repopulate of the outline view.
+ """
+ childIndex = self.model().index(0, 0)
+ while childIndex.isValid():
+ name = self.model().item(childIndex).data(0)
+ if (self.__currentItemName and self.__currentItemName == name):
+ self.setCurrentIndex(childIndex)
+ if name in self.__expandedNames:
+ self.setExpanded(childIndex, True)
+ childIndex = self.indexBelow(childIndex)
+ self.__resizeColumns()
+
+ self.__expandedNames = []
+ self.__currentItemName = ""
+
+ def isSupportedLanguage(self, language):
+ """
+ Public method to check, if outlining a given language is supported.
+
+ @param language source language to be checked
+ @type str
+ @return flag indicating support
+ @rtype bool
+ """
+ return language in EditorOutlineModel.SupportedLanguages
+
+ @pyqtSlot(QModelIndex)
+ def __gotoItem(self, index):
+ """
+ Private slot to set the editor cursor.
+
+ @param index index of the item to set the cursor for
+ @type QModelIndex
+ """
+ if index.isValid():
+ itm = self.model().item(index)
+ if itm:
+ with contextlib.suppress(AttributeError):
+ lineno = itm.lineno()
+ self.__model.editor().gotoLine(lineno)
+
+ def mouseDoubleClickEvent(self, mouseEvent):
+ """
+ Protected method of QAbstractItemView.
+
+ Reimplemented to disable expanding/collapsing of items when
+ double-clicking. Instead the double-clicked entry is opened.
+
+ @param mouseEvent the mouse event (QMouseEvent)
+ """
+ index = self.indexAt(mouseEvent.pos())
+ if index.isValid():
+ itm = self.model().item(index)
+ if isinstance(itm, (BrowserImportsItem, BrowserGlobalsItem)):
+ self.setExpanded(index, not self.isExpanded(index))
+ else:
+ self.__gotoItem(index)
+
+ def __currentItem(self):
+ """
+ Private method to get a reference to the current item.
+
+ @return reference to the current item
+ @rtype BrowserItem
+ """
+ itm = self.model().item(self.currentIndex())
+ return itm
+
+ #######################################################################
+ ## Context menu methods below
+ #######################################################################
+
+ def __createPopupMenus(self):
+ """
+ Private method to generate the various popup menus.
+ """
+ # create the popup menu for general use
+ self.__menu = QMenu(self)
+ self.__menu.addAction(
+ QCoreApplication.translate('EditorOutlineView', 'Goto'),
+ self.__goto)
+ self.__menu.addSeparator()
+ self.__menu.addAction(
+ QCoreApplication.translate('EditorOutlineView', 'Refresh'),
+ self.repopulate)
+ self.__menu.addSeparator()
+ self.__menu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Copy Path to Clipboard'),
+ self.__copyToClipboard)
+ self.__menu.addSeparator()
+ self.__menu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Expand All'),
+ lambda: self.expandToDepth(-1))
+ self.__menu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Collapse All'),
+ self.collapseAll)
+ self.__menu.addSeparator()
+ self.__menu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Increment Width'),
+ self.__incWidth)
+ self.__decWidthAct = self.__menu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Decrement Width'),
+ self.__decWidth)
+ self.__menu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Set Default Width'),
+ self.__defaultWidth)
+
+ # create the attribute/import menu
+ self.__gotoMenu = QMenu(
+ QCoreApplication.translate('EditorOutlineView', "Goto"),
+ self)
+ self.__gotoMenu.aboutToShow.connect(self.__showGotoMenu)
+ self.__gotoMenu.triggered.connect(self.__gotoAttribute)
+
+ self.__attributeMenu = QMenu(self)
+ self.__attributeMenu.addMenu(self.__gotoMenu)
+ self.__attributeMenu.addSeparator()
+ self.__attributeMenu.addAction(
+ QCoreApplication.translate('EditorOutlineView', 'Refresh'),
+ self.repopulate)
+ self.__attributeMenu.addSeparator()
+ self.__attributeMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Copy Path to Clipboard'),
+ self.__copyToClipboard)
+ self.__attributeMenu.addSeparator()
+ self.__attributeMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Expand All'),
+ lambda: self.expandToDepth(-1))
+ self.__attributeMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Collapse All'),
+ self.collapseAll)
+ self.__attributeMenu.addSeparator()
+ self.__attributeMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Increment Width'),
+ self.__incWidth)
+ self.__attributeDecWidthAct = self.__attributeMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Decrement Width'),
+ self.__decWidth)
+ self.__attributeMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Set Default Width'),
+ self.__defaultWidth)
+
+ # create the background menu
+ self.__backMenu = QMenu(self)
+ self.__backMenu.addAction(
+ QCoreApplication.translate('EditorOutlineView', 'Refresh'),
+ self.repopulate)
+ self.__backMenu.addSeparator()
+ self.__backMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Copy Path to Clipboard'),
+ self.__copyToClipboard)
+ self.__backMenu.addSeparator()
+ self.__backMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Expand All'),
+ lambda: self.expandToDepth(-1))
+ self.__backMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Collapse All'),
+ self.collapseAll)
+ self.__backMenu.addSeparator()
+ self.__backMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Increment Width'),
+ self.__incWidth)
+ self.__backDecWidthAct = self.__backMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Decrement Width'),
+ self.__decWidth)
+ self.__backMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', 'Set Default Width'),
+ self.__defaultWidth)
+
+ @pyqtSlot(QPoint)
+ def __contextMenuRequested(self, coord):
+ """
+ Private slot to show the context menu.
+
+ @param coord position of the mouse pointer
+ @type QPoint
+ """
+ index = self.indexAt(coord)
+ coord = self.mapToGlobal(coord)
+
+ decWidthEnable = (
+ self.maximumWidth() !=
+ 2 * Preferences.getEditor("SourceOutlineStepSize")
+ )
+
+ if index.isValid():
+ self.setCurrentIndex(index)
+
+ itm = self.model().item(index)
+ if isinstance(
+ itm, (BrowserClassAttributeItem, BrowserImportItem)
+ ):
+ self.__attributeDecWidthAct.setEnabled(decWidthEnable)
+ self.__attributeMenu.popup(coord)
+ else:
+ self.__decWidthAct.setEnabled(decWidthEnable)
+ self.__menu.popup(coord)
+ else:
+ self.__backDecWidthAct.setEnabled(decWidthEnable)
+ self.__backMenu.popup(coord)
+
+ @pyqtSlot()
+ def __showGotoMenu(self):
+ """
+ Private slot to prepare the goto submenu of the attribute menu.
+ """
+ self.__gotoMenu.clear()
+
+ itm = self.model().item(self.currentIndex())
+ try:
+ linenos = itm.linenos()
+ except AttributeError:
+ try:
+ linenos = [itm.lineno()]
+ except AttributeError:
+ return
+
+ for lineno in sorted(linenos):
+ act = self.__gotoMenu.addAction(
+ QCoreApplication.translate(
+ 'EditorOutlineView', "Line {0}").format(lineno))
+ act.setData(lineno)
+
+ #######################################################################
+ ## Context menu handlers below
+ #######################################################################
+
+ @pyqtSlot()
+ def __gotoAttribute(self, act):
+ """
+ Private slot to handle the selection of the goto menu.
+
+ @param act reference to the action (E5Action)
+ """
+ lineno = act.data()
+ self.__model.editor().gotoLine(lineno)
+
+ @pyqtSlot()
+ def __goto(self):
+ """
+ Private slot to move the editor cursor to the line of the context item.
+ """
+ self.__gotoItem(self.currentIndex())
+
+ @pyqtSlot()
+ def __copyToClipboard(self):
+ """
+ Private slot to copy the file name of the editor to the clipboard.
+ """
+ fn = self.__model.fileName()
+
+ if fn:
+ cb = QApplication.clipboard()
+ cb.setText(fn)
+
+ @pyqtSlot()
+ def __incWidth(self):
+ """
+ Private slot to increment the width of the outline.
+ """
+ self.setMaximumWidth(
+ self.maximumWidth() +
+ Preferences.getEditor("SourceOutlineStepSize")
+ )
+ self.updateGeometry()
+
+ @pyqtSlot()
+ def __decWidth(self):
+ """
+ Private slot to decrement the width of the outline.
+ """
+ stepSize = Preferences.getEditor("SourceOutlineStepSize")
+ newWidth = self.maximumWidth() - stepSize
+
+ self.setMaximumWidth(max(newWidth, 2 * stepSize))
+ self.updateGeometry()
+
+ @pyqtSlot()
+ def __defaultWidth(self):
+ """
+ Private slot to set the outline to the default width.
+ """
+ self.setMaximumWidth(Preferences.getEditor("SourceOutlineWidth"))
+ self.updateGeometry()
+
+ #######################################################################
+ ## Methods handling editor signals below
+ #######################################################################
+
+ @pyqtSlot()
+ def __editorLanguageChanged(self):
+ """
+ Private slot handling a change of the associated editors source code
+ language.
+ """
+ self.__model.repopulate()
+ self.__resizeColumns()
+
+ @pyqtSlot()
+ def __editorRenamed(self):
+ """
+ Private slot handling a renaming of the associated editor.
+ """
+ self.__model.repopulate()
+ self.__resizeColumns()
+
+ @pyqtSlot(int)
+ def __editorCursorLineChanged(self, lineno):
+ """
+ Private method to highlight a node given its line number.
+
+ @param lineno zero based line number of the item
+ @type int
+ """
+ sindex = self.__model.itemIndexByLine(lineno + 1)
+ if sindex.isValid():
+ index = self.model().mapFromSource(sindex)
+ if index.isValid():
+ self.setCurrentIndex(index)
+ self.scrollTo(index)
+ else:
+ self.setCurrentIndex(QModelIndex())
