Esempio n. 1
0
class CFSceneContextMenuMixin:
    """Encapsulates the context menu handling"""
    def __init__(self):
        self.menu = None
        self.individualMenus = {}

        # Scene menu preparation
        self.sceneMenu = QMenu()
        self.sceneMenu.addAction(getIcon('filesvg.png'), 'Save as SVG...',
                                 self.parent().onSaveAsSVG)
        self.sceneMenu.addAction(getIcon('filepdf.png'), 'Save as PDF...',
                                 self.parent().onSaveAsPDF)
        self.sceneMenu.addAction(getIcon('filepixmap.png'), 'Save as PNG...',
                                 self.parent().onSaveAsPNG)
        self.sceneMenu.addSeparator()
        self.sceneMenu.addAction(getIcon('copymenu.png'),
                                 'Copy image to clipboard',
                                 self.parent().copyToClipboard)

        # Common menu for all the individually selected items
        self.commonMenu = QMenu()
        self.__ccAction = self.commonMenu.addAction(
            getIcon("customcolors.png"), "Custom colors...",
            self.onCustomColors)
        self.__rtAction = self.commonMenu.addAction(
            getIcon("replacetitle.png"), "Replace text...", self.onReplaceText)
        self.__groupAction = self.commonMenu.addAction(getIcon("cfgroup.png"),
                                                       "Group...",
                                                       self.onGroup)
        self.commonMenu.addSeparator()
        self.__removeCCAction = self.commonMenu.addAction(
            getIcon('trash.png'), 'Remove custom colors',
            self.onRemoveCustomColors)
        self.__removeRTAction = self.commonMenu.addAction(
            getIcon('trash.png'), 'Remove replacement text',
            self.onRemoveReplacementText)
        #self.commonMenu.addSeparator()
        #self.__cutAction = self.commonMenu.addAction(
        #    getIcon("cutmenu.png"), "Cut (specific for graphics pane)",
        #    self.onCut)
        #self.__copyAction = self.commonMenu.addAction(
        #    getIcon("copymenu.png"), "Copy (specific for graphics pane)",
        #    self.onCopy)
        #self.commonMenu.addSeparator()
        #self.commonMenu.addAction(
        #    getIcon("trash.png"), "Delete", self.onDelete)

        # Individual items specific menu: begin
        ifContextMenu = QMenu()
        ifContextMenu.addAction(getIcon("switchbranches.png"),
                                "Switch branch layout", self.onSwitchIfBranch)

        openGroupContextMenu = QMenu()
        openGroupContextMenu.addAction(getIcon("collapse.png"), "Collapse",
                                       self.onGroupCollapse)
        openGroupContextMenu.addAction(getIcon("replacetitle.png"),
                                       "Edit title...", self.onGroupEditTitle)
        openGroupContextMenu.addAction(getIcon("ungroup.png"), "Ungroup",
                                       self.onGroupUngroup)

        closeGroupContextMenu = QMenu()
        closeGroupContextMenu.addAction(getIcon("expand.png"), "Expand",
                                        self.onGroupExpand)
        closeGroupContextMenu.addAction(getIcon("replacetitle.png"),
                                        "Edit title...", self.onGroupEditTitle)
        closeGroupContextMenu.addAction(getIcon("ungroup.png"), "Ungroup",
                                        self.onGroupUngroup)

        emptyGroupContextMenu = QMenu()
        emptyGroupContextMenu.addAction(getIcon("replacetitle.png"),
                                        "Edit title...", self.onGroupEditTitle)
        emptyGroupContextMenu.addAction(getIcon("ungroup.png"), "Ungroup",
                                        self.onGroupUngroup)

        self.individualMenus[IfCell] = ifContextMenu
        self.individualMenus[OpenedGroupBegin] = openGroupContextMenu
        self.individualMenus[CollapsedGroup] = closeGroupContextMenu
        self.individualMenus[EmptyGroup] = emptyGroupContextMenu
        # Individual items specific menu: end

        # Menu for a group of selected items
        self.groupMenu = QMenu()

    def onContextMenu(self, event):
        """Triggered when a context menu should be shown"""
        selectedItems = self.selectedItems()
        selectionCount = len(selectedItems)
        if selectionCount == 0:
            self.sceneMenu.popup(event.screenPos())
            return

        if selectionCount == 1:
            self.__buildIndividualMenu(selectedItems[0])
        else:
            self.__buildGroupMenu(selectedItems)
        self.menu.popup(event.screenPos())

    def __buildIndividualMenu(self, item):
        """Builds a context menu for the given item"""
        self.menu = QMenu()
        if type(item) in self.individualMenus:
            individualPart = self.individualMenus[type(item)]
            self.menu.addActions(individualPart.actions())
            self.menu.addSeparator()
        self.menu.addActions(self.commonMenu.actions())

        # Note: if certain items need to be disabled then it should be done
        #       here
        self.__disableMenuItems()

    def __buildGroupMenu(self, items):
        """Builds a context menu for the group of items"""
        self.menu = QMenu()
        if type(items[0]) in self.individualMenus:
            if self.areSelectedOfTypes([[items[0].kind, items[0].subKind]]):
                individualPart = self.individualMenus[type(items[0])]
                self.menu.addActions(individualPart.actions())
                self.menu.addSeparator()
        self.menu.addActions(self.commonMenu.actions())
        if not self.groupMenu.isEmpty():
            self.menu.addSeparator()
            self.menu.addActions(self.groupMenu.actions())

        # Note: if certain items need to be disabled then it should be done
        #       here
        self.__disableMenuItems()

    def __disableMenuItems(self):
        """Disables the common menu items as needed"""
        hasComment = self.isCommentInSelection()
        hasDocstring = self.isDocstringInSelection()
        hasMinimizedExcepts = self.isInSelected([(CellElement.EXCEPT_MINIMIZED,
                                                  None)])
        totalGroups = sum(self.countGroups())
        count = len(self.selectedItems())

        self.__ccAction.setEnabled(not hasComment and not hasMinimizedExcepts)
        self.__rtAction.setEnabled(not hasComment and not hasDocstring
                                   and not hasMinimizedExcepts
                                   and totalGroups == 0)

        totalCCGroups = sum(self.countGroupsWithCustomColors())
        self.__removeCCAction.setEnabled(
            self.countItemsWithCML(CMLcc) + totalCCGroups == count)
        self.__removeRTAction.setEnabled(
            self.countItemsWithCML(CMLrt) == count)
        self.__groupAction.setEnabled(self.__canBeGrouped())
        #self.__cutAction.setEnabled(count == 1)
        #self.__copyAction.setEnabled(count == 1)

    def __actionPrerequisites(self):
        """True if an editor related action can be done"""
        selectedItems = self.selectedItems()
        if not selectedItems:
            return False
        editor = selectedItems[0].getEditor()
        if editor is None:
            return False
        return True

    def onSwitchIfBranch(self):
        """If primitive should switch the branches"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        # The selected items need to be sorted in the reverse line no oreder
        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                if item.kind == CellElement.IF:
                    cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                                 CMLsw)
                    if cmlComment is None:
                        # Did not exist, so needs to be generated
                        line = CMLsw.generate(item.ref.body.beginPos)
                        lineNo = item.getFirstLine()
                        editor.insertLines(line, lineNo)
                    else:
                        # Existed, so it just needs to be deleted
                        cmlComment.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByID(selection)

    def onCustomColors(self):
        """Custom background and foreground colors"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        bgcolor, fgcolor, bordercolor = self.selectedItems()[0].getColors()
        hasDocstring = self.isDocstringInSelection()
        dlg = CustomColorsDialog(bgcolor, fgcolor,
                                 None if hasDocstring else bordercolor,
                                 self.parent())
        if dlg.exec_():
            bgcolor = dlg.backgroundColor()
            fgcolor = dlg.foregroundColor()
            bordercolor = dlg.borderColor()

            editor = self.selectedItems()[0].getEditor()
            with editor:
                for item in self.sortSelectedReverse():
                    if item.kind in [
                            CellElement.OPENED_GROUP_BEGIN,
                            CellElement.COLLAPSED_GROUP,
                            CellElement.EMPTY_GROUP
                    ]:
                        # The group always exists so just add/change the colors
                        item.groupBeginCMLRef.updateCustomColors(
                            editor, bgcolor, fgcolor, bordercolor)
                        continue
                    if item.isDocstring():
                        cmlComment = CMLVersion.find(
                            item.ref.docstring.leadingCMLComments, CMLcc)
                    else:
                        cmlComment = CMLVersion.find(
                            item.ref.leadingCMLComments, CMLcc)
                    if cmlComment is not None:
                        # Existed, so remove the old one first
                        lineNo = cmlComment.ref.beginLine
                        cmlComment.removeFromText(editor)
                    else:
                        lineNo = item.getFirstLine()

                    pos = item.ref.body.beginPos
                    if item.isDocstring():
                        pos = item.ref.docstring.beginPos
                    line = CMLcc.generate(bgcolor, fgcolor, bordercolor, pos)
                    editor.insertLines(line, lineNo)
            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    def onReplaceText(self):
        """Replace the code with a title"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        dlg = ReplaceTextDialog('Replace text', 'Item caption:', self.parent())

        # If it was one item selection and there was a previous text then
        # set it for editing
        if len(self.selectedItems()) == 1:
            cmlComment = CMLVersion.find(
                self.selectedItems()[0].ref.leadingCMLComments, CMLrt)
            if cmlComment is not None:
                dlg.setText(cmlComment.getText())

        if dlg.exec_():
            replacementText = dlg.text()
            editor = self.selectedItems()[0].getEditor()
            with editor:
                for item in self.sortSelectedReverse():
                    cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                                 CMLrt)
                    if cmlComment is not None:
                        # Existed, so remove the old one first
                        lineNo = cmlComment.ref.beginLine
                        cmlComment.removeFromText(editor)
                    else:
                        lineNo = item.getFirstLine()

                    line = CMLrt.generate(replacementText,
                                          item.ref.body.beginPos)
                    editor.insertLines(line, lineNo)
            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    def onGroupCollapse(self):
        """Collapses the selected group"""
        if not self.__actionPrerequisites():
            return

        # The selected items need to be sorted in the reverse line no oreder
        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                if item.kind == CellElement.OPENED_GROUP_BEGIN:
                    fileName = editor._parent.getFileName()
                    if not fileName:
                        fileName = editor._parent.getShortName()
                    addCollapsedGroup(fileName, item.getGroupId())

        QApplication.processEvents()
        self.parent().redrawNow()

    def onGroupExpand(self):
        """Expands the selected group"""
        if not self.__actionPrerequisites():
            return

        # The selected items need to be sorted in the reverse line no oreder
        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                if item.kind == CellElement.COLLAPSED_GROUP:
                    fileName = editor._parent.getFileName()
                    if not fileName:
                        fileName = editor._parent.getShortName()
                    removeCollapsedGroup(fileName, item.getGroupId())

        QApplication.processEvents()
        self.parent().redrawNow()

    def onGroupEditTitle(self):
        """Edit (or view) the group title"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        dlg = ReplaceTextDialog('Group title', 'Group title:', self.parent())

        # If it was one item selection and there was a previous text then
        # set it for editing
        if len(self.selectedItems()) == 1:
            title = self.selectedItems()[0].getTitle()
            if title:
                dlg.setText(title)

        if dlg.exec_():
            newTitle = dlg.text()
            editor = self.selectedItems()[0].getEditor()
            with editor:
                for item in self.sortSelectedReverse():
                    item.groupBeginCMLRef.updateTitle(editor, newTitle)
            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    def onGroupUngroup(self):
        """Ungroups the items"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        # The selected items need to be sorted in the reverse line no oreder
        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                item.groupEndCMLRef.removeFromText(editor)
                item.groupBeginCMLRef.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByTooltip(selection)

    def onDelete(self):
        """Delete the item"""
        print("Delete")

    def onGroup(self):
        """Groups items into a single one"""
        dlg = ReplaceTextDialog('Group title', 'Group title:', self.parent())

        if dlg.exec_():
            groupTitle = dlg.text()
            selected = self.__extendSelectionForGrouping()
            selected = self.sortSelected(selected)
            editor = selected[0].getEditor()

            firstLine, lastLine, pos = self.__getLineRange(selected)

            groupid = self.parent().generateNewGroupId()
            beginComment = CMLgb.generate(groupid, groupTitle, None, None,
                                          None, pos)
            endComment = CMLge.generate(groupid, pos)

            with editor:
                editor.insertLines(endComment, lastLine + 1)
                editor.insertLines(beginComment, firstLine)

            # Redraw the group collapsed
            fileName = editor._parent.getFileName()
            if not fileName:
                fileName = editor._parent.getShortName()
            addCollapsedGroup(fileName, groupid)

            QApplication.processEvents()
            self.parent().redrawNow()

    def onCopy(self):
        """Copying..."""
        selectedItems = self.selectedItems()
        if selectedItems:
            if len(selectedItems) > 1:
                print('Copying multiple items has not been implemented yet')
                return
            selectedItems[0].copyToClipboard()

    def onCut(self):
        """Cutting..."""
        print("Cut")

    def onRemoveCustomColors(self):
        """Removing the previously set custom colors"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                if item.kind in [
                        CellElement.OPENED_GROUP_BEGIN,
                        CellElement.COLLAPSED_GROUP, CellElement.EMPTY_GROUP
                ]:
                    item.groupBeginCMLRef.removeCustomColors(editor)
                    continue
                if item.isDocstring():
                    cmlComment = CMLVersion.find(
                        item.ref.docstring.leadingCMLComments, CMLcc)
                else:
                    cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                                 CMLcc)
                if cmlComment is not None:
                    cmlComment.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByID(selection)

    def onRemoveReplacementText(self):
        """Removing replacement text"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                             CMLrt)
                if cmlComment is not None:
                    cmlComment.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByID(selection)

    def areSelectedOfTypes(self, matchList):
        """Checks if the selected items belong to the match"""
        # match is a list of pairs [kind, subKind]
        #   None would mean 'match any'
        selectedItems = self.selectedItems()
        if selectedItems:
            for selectedItem in selectedItems:
                for kind, subKind in matchList:
                    match = True
                    if kind is not None:
                        if kind != selectedItem.kind:
                            match = False
                    if subKind is not None:
                        if subKind != selectedItem.subKind:
                            match = False
                    if match:
                        break
                else:
                    return False
            return True
        return False

    def isInSelected(self, matchList):
        """Checks if any if the match list items is in the selection"""
        # match is a list of pairs [kind, subKind]
        #   None would mean 'match any'
        for selectedItem in self.selectedItems():
            for kind, subKind in matchList:
                match = True
                if kind is not None:
                    if kind != selectedItem.kind:
                        match = False
                if subKind is not None:
                    if subKind != selectedItem.subKind:
                        match = False
                if match:
                    return True
        return False

    def isDocstringInSelection(self):
        """True if a docstring item in the selection"""
        for item in self.selectedItems():
            if item.isDocstring():
                return True
        return False

    def isCommentInSelection(self):
        """True if a comment item in the selection"""
        for item in self.selectedItems():
            if item.isComment():
                return True
        return False

    def countItemsWithCML(self, cmlType):
        """Counts items with have a certain type of a CML comment"""
        count = 0
        for item in self.selectedItems():
            if item.isComment():
                continue
            if item.isDocstring():
                # Side comments for docstrings? Nonesense! So they are ignored
                # even if they are collected
                if CMLVersion.find(item.ref.docstring.leadingCMLComments,
                                   cmlType) is not None:
                    count += 1
                continue

            if hasattr(item.ref, 'leadingCMLComments'):
                if CMLVersion.find(item.ref.leadingCMLComments,
                                   cmlType) is not None:
                    count += 1
                    continue
            if hasattr(item.ref, 'sideCMLComments'):
                if CMLVersion.find(item.ref.sideCMLComments,
                                   cmlType) is not None:
                    count += 1
        return count

    def countGroups(self):
        """Counts empty, close and open groups"""
        emptyCount = 0
        closeCount = 0
        openCount = 0
        for item in self.selectedItems():
            if item.kind == CellElement.EMPTY_GROUP:
                emptyCount += 1
            elif item.kind == CellElement.COLLAPSED_GROUP:
                closeCount += 1
            elif item.kind == CellElement.OPENED_GROUP_BEGIN:
                openCount += 1
        return emptyCount, closeCount, openCount

    def countGroupsWithCustomColors(self):
        """Counts the groups with any color defined"""
        emptyCount = 0
        closeCount = 0
        openCount = 0
        for item in self.selectedItems():
            if item.kind in [
                    CellElement.EMPTY_GROUP, CellElement.COLLAPSED_GROUP,
                    CellElement.OPENED_GROUP_BEGIN
            ]:
                if item.groupBeginCMLRef.bgColor is not None or \
                   item.groupBeginCMLRef.fgColor is not None or \
                   item.groupBeginCMLRef.border is not None:
                    if item.kind == CellElement.EMPTY_GROUP:
                        emptyCount += 1
                    elif item.kind == CellElement.COLLAPSED_GROUP:
                        closeCount += 1
                    else:
                        openCount += 1
        return emptyCount, closeCount, openCount

    def sortSelectedReverse(self):
        """Sorts the selected items in reverse order"""
        result = []
        for item in self.selectedItems():
            itemBegin = item.getAbsPosRange()[0]
            for index in range(len(result)):
                if itemBegin > result[index].getAbsPosRange()[0]:
                    result.insert(index, item)
                    break
            else:
                result.append(item)
        return result

    def sortSelected(self, selected):
        """Sorts the selected items in direct order"""
        result = []
        for item in selected:
            itemBegin = item.getAbsPosRange()[0]
            for index in range(len(result)):
                if itemBegin < result[index].getAbsPosRange()[0]:
                    result.insert(index, item)
                    break
            else:
                result.append(item)
        return result

    def __canBeGrouped(self):
        """True if the selected items can be grouped"""
        # Cannot import it at the top...
        from .flowuiwidget import SMART_ZOOM_ALL, SMART_ZOOM_NO_CONTENT

        if Settings()['smartZoom'] not in [
                SMART_ZOOM_ALL, SMART_ZOOM_NO_CONTENT
        ]:
            return False
        if self.__areAllSelectedComments():
            return False
        if self.__areScopeDocstringOrCommentSelected():
            return False
        if self.__isModuleSelected():
            return False

        # Extend the selection with all the selected items comments
        selected = self.__extendSelectionForGrouping()

        if self.__areLoneCommentsSelected(selected):
            return False

        if self.__areIncompleteScopeSelected(selected):
            return False

        scopeCoveredRegions = self.__getSelectedScopeRegions(selected)

        # The __areIfFullySelected() also updates the regions with
        # fully selected if regions
        if not self.__areIfFullySelected(selected, scopeCoveredRegions):
            return False

        selected = self.sortSelected(selected)
        begin = selected[0].getAbsPosRange()[0]
        end = selected[-1].getAbsPosRange()[1]

        if not self.__isSelectionContinuous(selected, scopeCoveredRegions,
                                            begin, end):
            return False

        if self.__moreThanOneIfBranchSelected(selected, scopeCoveredRegions):
            return False
        return True

    def __areAllSelectedComments(self):
        """True if all selected items are comments"""
        for item in self.selectedItems():
            if not item.isComment():
                return False
        return True

    def __areScopeDocstringOrCommentSelected(self):
        for item in self.selectedItems():
            if item.scopedItem():
                if item.subKind in [
                        ScopeCellElement.SIDE_COMMENT,
                        ScopeCellElement.DOCSTRING
                ]:
                    return True
        return False

    def __isModuleSelected(self):
        """True if the whole module is selected"""
        for item in self.selectedItems():
            if item.kind == CellElement.FILE_SCOPE:
                return True
        return False

    def __areIncompleteScopeSelected(self, selected):
        """True if an incomplete scope selected"""
        for item in selected:
            if item.kind in [CellElement.FOR_SCOPE, CellElement.WHILE_SCOPE]:
                if item.ref.elsePart:
                    for relatedItem in self.findItemsForRef(item.ref.elsePart):
                        if relatedItem not in selected:
                            return True
            elif item.kind in [CellElement.TRY_SCOPE]:
                # It could be that the exception blocks are hidden, so there
                # will be exactly one more item instead of many and that item
                # will have a ref which matches the try scope.
                exceptPartCount = 0
                for exceptPart in item.ref.exceptParts:
                    for relatedItem in self.findItemsForRef(exceptPart):
                        exceptPartCount += 1
                        if relatedItem not in selected:
                            return True
                if exceptPartCount == 0:
                    # here: no except blocks on the diagram, they are collapsed
                    tryItems = self.findItemsForRef(item.ref)
                    for tryItem in tryItems:
                        if tryItem.kind == CellElement.EXCEPT_MINIMIZED:
                            if not tryItem.isSelected():
                                return True
                            break
                    else:
                        # The minimized except is not selected
                        return True
                if item.ref.elsePart:
                    for relatedItem in self.findItemsForRef(item.ref.elsePart):
                        if relatedItem not in selected:
                            return True
                if item.ref.finallyPart:
                    for relatedItem in self.findItemsForRef(
                            item.ref.finallyPart):
                        if relatedItem not in selected:
                            return True
            elif item.kind in [
                    CellElement.ELSE_SCOPE, CellElement.EXCEPT_SCOPE,
                    CellElement.FINALLY_SCOPE
            ]:
                for relatedItem in self.findItemsForRef(item.leaderRef):
                    if relatedItem not in selected:
                        return True
            elif item.kind == CellElement.EXCEPT_MINIMIZED:
                # here: no except blocks on the diagram, they are collapsed
                tryItems = self.findItemsForRef(item.ref)
                for tryItem in tryItems:
                    if tryItem.kind == CellElement.TRY_SCOPE:
                        if tryItem.subKind == ScopeCellElement.TOP_LEFT:
                            if not tryItem.isSelected():
                                return True
                            break
                else:
                    # The try is not selected
                    return True
        return False

    def __extendSelectionForGrouping(self):
        """Extends the selection with the leading and side comments"""
        boundComments = []
        selected = self.selectedItems()
        for item in selected:
            if not item.isComment() and not self.isOpenGroupItem(item):
                for relatedItem in self.findItemsForRef(item.ref):
                    if relatedItem not in selected:
                        boundComments.append(relatedItem)
        return selected + boundComments

    def __areLoneCommentsSelected(self, selected):
        """True if there are comments selected which have no main item selected"""
        for item in selected:
            if item.isComment():
                if item.kind in [
                        CellElement.SIDE_COMMENT, CellElement.LEADING_COMMENT,
                        CellElement.ABOVE_COMMENT
                ]:
                    for relatedItem in self.findItemsForRef(item.ref):
                        if relatedItem not in selected:
                            return True
        return False

    def __getLineRange(self, selected):
        first = selected[0]
        last = selected[-1]

        if first.kind == CellElement.OPENED_GROUP_BEGIN:
            firstLine = first.groupBeginCMLRef.ref.parts[0].beginLine
            pos = first.groupBeginCMLRef.ref.parts[0].beginPos
        else:
            firstLine = first.getLineRange()[0]
            pos = first.ref.beginPos

        if last.scopedItem():
            lastLine = last.ref.endLine
        elif last.kind == CellElement.OPENED_GROUP_BEGIN:
            lastLine = last.groupEndCMLRef.ref.parts[-1].endLine
        else:
            lastLine = last.getLineRange()[1]
        return firstLine, lastLine, pos

    def __getSelectedScopeRegions(self, selected):
        """Provides the regions of the selected scope items"""
        coveredRegions = []
        for item in selected:
            if item.scopedItem():
                if item.subKind in [ScopeCellElement.TOP_LEFT]:
                    if item.ref.leadingComment:
                        coveredRegions.append(
                            (item.ref.leadingComment.begin, item.ref.end))
                    else:
                        coveredRegions.append((item.ref.begin, item.ref.end))
            elif item.kind == CellElement.OPENED_GROUP_BEGIN:
                coveredRegions.append(item.getAbsPosRange())
        return coveredRegions

    def __areIfFullySelected(self, selected, regions):
        """Checks if selected IFs are fully selected"""
        for item in selected:
            if item.kind == CellElement.IF:
                ifBegin = item.ref.begin
                ifEnd = item.ref.end
                for item in self.items():
                    if item.isProxyItem():
                        continue
                    if item.scopedItem():
                        if item.subKind not in [
                                ScopeCellElement.TOP_LEFT,
                                ScopeCellElement.DOCSTRING,
                                ScopeCellElement.SIDE_COMMENT
                        ]:
                            continue
                    if item in selected:
                        continue
                    itemRange = item.getAbsPosRange()
                    if self.isInRegion(itemRange[0], itemRange[1], regions):
                        continue
                    if itemRange[0] > ifBegin and itemRange[0] < ifEnd:
                        return False
                    if itemRange[1] > ifBegin and itemRange[1] < ifEnd:
                        return False
                regions.append([ifBegin, ifEnd])
        return True

    @staticmethod
    def isInRegion(start, finish, regions):
        for region in regions:
            if start >= region[0] and finish <= region[1]:
                return True
        return False

    def __isSelectionContinuous(self, selected, regions, begin, end):
        """Checks if the selection is continuous"""
        for item in self.items():
            if item.isProxyItem():
                continue
            if item.scopedItem():
                if item.subKind not in [
                        ScopeCellElement.TOP_LEFT, ScopeCellElement.DOCSTRING,
                        ScopeCellElement.SIDE_COMMENT
                ]:
                    continue
            if item in selected:
                continue
            itemRange = item.getAbsPosRange()
            if self.isInRegion(itemRange[0], itemRange[1], regions):
                continue

            # It is important to keep < and > instead of <= and >=
            # This is because the scopes start with the first statement
            if itemRange[0] > begin and itemRange[0] < end:
                return False
            if itemRange[1] > begin and itemRange[1] < end:
                return False
        return True

    def __moreThanOneIfBranchSelected(self, selected, regions):
        """Checks that the continuous selected items belong to more than one
        not selected IF statements
        """
        ifRef = None
        for item in selected:
            if item.kind != CellElement.IF:
                itemRange = item.getAbsPosRange()
                if item.kind != CellElement.OPENED_GROUP_BEGIN:
                    if self.isInRegion(itemRange[0], itemRange[1], regions):
                        # Here: an item is in a selected scope item, in a selected
                        #       open group or in a fully selected if
                        continue
                # Test if an item belongs to an if statement branch
                if item.kind in [
                        CellElement.OPENED_GROUP_BEGIN,
                        CellElement.EMPTY_GROUP, CellElement.COLLAPSED_GROUP
                ]:
                    branchId = item.groupBeginCMLRef.ref.getParentIfID()
                else:
                    branchId = item.ref.getParentIfID()
                if branchId is not None:
                    if ifRef is None:
                        ifRef = branchId
                    else:
                        if branchId != ifRef:
                            # Selected items belong to more than one branch
                            return True
        return False
Esempio n. 2
0
class CFSceneContextMenuMixin:

    """Encapsulates the context menu handling"""

    def __init__(self):
        self.menu = None
        self.individualMenus = {}

        # Scene menu preparation
        self.sceneMenu = QMenu()
        self.sceneMenu.addAction(getIcon('filesvg.png'), 'Save as SVG...',
                                 self.parent().onSaveAsSVG)
        self.sceneMenu.addAction(getIcon('filepdf.png'), 'Save as PDF...',
                                 self.parent().onSaveAsPDF)
        self.sceneMenu.addAction(getIcon('filepixmap.png'), 'Save as PNG...',
                                 self.parent().onSaveAsPNG)
        self.sceneMenu.addSeparator()
        self.sceneMenu.addAction(getIcon('copymenu.png'),
                                 'Copy image to clipboard',
                                 self.parent().copyToClipboard)

        # Common menu for all the individually selected items
        self.commonMenu = QMenu()
        self.__ccSubmenuAction = self.commonMenu.addMenu(
            self.__initCustomColorsContextMenu())
        self.__rtSubmenuAction = self.commonMenu.addMenu(
            self.__initReplaceTextContextMenu())
        self.__docSubmenuAction = self.commonMenu.addMenu(
            self.__initDocContextMenu())
        self.__groupAction = self.commonMenu.addAction(
            getIcon("cfgroup.png"), "Group...", self.onGroup)

        #self.commonMenu.addSeparator()
        #self.__cutAction = self.commonMenu.addAction(
        #    getIcon("cutmenu.png"), "Cut (specific for graphics pane)",
        #    self.onCut)
        #self.__copyAction = self.commonMenu.addAction(
        #    getIcon("copymenu.png"), "Copy (specific for graphics pane)",
        #    self.onCopy)
        #self.commonMenu.addSeparator()
        #self.commonMenu.addAction(
        #    getIcon("trash.png"), "Delete", self.onDelete)

        # Individual items specific menu: begin
        ifContextMenu = QMenu()
        ifContextMenu.addAction(
            getIcon("switchbranches.png"), "Switch branch layout",
            self.onSwitchIfBranch)

        self.individualMenus[IfCell] = ifContextMenu
        self.individualMenus[OpenedGroupBegin] = self.__initOpenGroupContextMenu()
        self.individualMenus[CollapsedGroup] = self.__initCloseGroupContextMenu()
        self.individualMenus[EmptyGroup] = self.__initEmptyGroupContextMenu()

        # Individual items specific menu: end

        # Menu for a group of selected items
        self.groupMenu = QMenu()

    def __initOpenGroupContextMenu(self):
        """Creates the open group context menu"""
        ogMenu = QMenu()
        ogMenu.addAction(getIcon("collapse.png"), "Collapse", self.onGroupCollapse)
        ogMenu.addAction(getIcon("replacetitle.png"), "Edit title...", self.onGroupEditTitle)
        ogMenu.addAction(getIcon("ungroup.png"), "Ungroup", self.onGroupUngroup)
        return ogMenu

    def __initCloseGroupContextMenu(self):
        """Creates the closed group context menu"""
        cgMenu = QMenu()
        cgMenu.addAction(getIcon("expand.png"), "Expand", self.onGroupExpand)
        cgMenu.addAction(getIcon("replacetitle.png"), "Edit title...", self.onGroupEditTitle)
        cgMenu.addAction(getIcon("ungroup.png"), "Ungroup", self.onGroupUngroup)
        return cgMenu

    def __initEmptyGroupContextMenu(self):
        """Creates the empty group context menu"""
        egMenu = QMenu()
        egMenu.addAction(getIcon("replacetitle.png"), "Edit title...", self.onGroupEditTitle)
        egMenu.addAction(getIcon("ungroup.png"), "Ungroup", self.onGroupUngroup)
        return egMenu

    def __initCustomColorsContextMenu(self):
        """Create the custom colors submenu"""
        self.__customColorsSubmenu = QMenu('Custom colors')
        self.__customColorsSubmenu.setIcon(getIcon('customcolorsmenu.png'))
        self.__ccAction = self.__customColorsSubmenu.addAction(
            getIcon("customcolors.png"), "Custom colors...",
            self.onCustomColors)
        self.__customColorsSubmenu.addSeparator()
        self.__removeCCAction = self.__customColorsSubmenu.addAction(
            getIcon('trash.png'), 'Remove custom colors',
            self.onRemoveCustomColors)
        return self.__customColorsSubmenu

    def __initReplaceTextContextMenu(self):
        """Create the Replace text submenu"""
        self.__replaceTextSubmenu = QMenu('Replace text')
        self.__replaceTextSubmenu.setIcon(getIcon('replacetextmenu.png'))
        self.__rtAction = self.__replaceTextSubmenu.addAction(
            getIcon("replacetitle.png"), "Replace text...",
            self.onReplaceText)
        self.__replaceTextSubmenu.addSeparator()
        self.__removeRTAction = self.__replaceTextSubmenu.addAction(
            getIcon('trash.png'), 'Remove replacement text',
            self.onRemoveReplacementText)
        return self.__replaceTextSubmenu

    def __initDocContextMenu(self):
        """Create the Documentation submenu"""
        self.__docSubmenu = QMenu('Documentation')
        self.__docSubmenu.setIcon(getIcon('markdown.png'))
        self.__editDocAction = self.__docSubmenu.addAction(
            getIcon('replacetitle.png'), 'Add/edit doc link/anchor...',
            self.onEditDoc)
        self.__autoDocActon = self.__docSubmenu.addAction(
            getIcon('createdoc.png'),
            'Create doc file, add link and open for editing',
            self.onAutoAddDoc)
        self.__docSubmenu.addSeparator()
        self.__removeDocAction = self.__docSubmenu.addAction(
            getIcon('trash.png'), 'Remove doc link/anchor',
            self.onRemoveDoc)
        return self.__docSubmenu

    def onContextMenu(self, event):
        """Triggered when a context menu should be shown"""
        selectedItems = self.selectedItems()
        selectionCount = len(selectedItems)
        if selectionCount == 0:
            self.sceneMenu.popup(event.screenPos())
            return

        if selectionCount == 1:
            self.__buildIndividualMenu(selectedItems[0])
        else:
            self.__buildGroupMenu(selectedItems)
        self.menu.popup(event.screenPos())

    def __buildIndividualMenu(self, item):
        """Builds a context menu for the given item"""
        self.menu = QMenu()
        if type(item) in self.individualMenus:
            individualPart = self.individualMenus[type(item)]
            self.menu.addActions(individualPart.actions())
            self.menu.addSeparator()
        self.menu.addActions(self.commonMenu.actions())

        # Note: if certain items need to be disabled then it should be done
        #       here
        self.__disableMenuItems()

    def __buildGroupMenu(self, items):
        """Builds a context menu for the group of items"""
        self.menu = QMenu()
        if type(items[0]) in self.individualMenus:
            if self.areSelectedOfTypes([[items[0].kind, items[0].subKind]]):
                individualPart = self.individualMenus[type(items[0])]
                self.menu.addActions(individualPart.actions())
                self.menu.addSeparator()
        self.menu.addActions(self.commonMenu.actions())
        if not self.groupMenu.isEmpty():
            self.menu.addSeparator()
            self.menu.addActions(self.groupMenu.actions())

        # Note: if certain items need to be disabled then it should be done
        #       here
        self.__disableMenuItems()

    def __disableMenuItems(self):
        """Disables the common menu items as needed"""
        totalComments = self.countComments()
        hasComment = totalComments > 0
        hasDocstring = self.isDocstringInSelection()
        hasMinimizedExcepts = self.isInSelected([(CellElement.EXCEPT_MINIMIZED,
                                                  None)])
        # Doc links are considered comments as well
        totalDocLinks = self.countInSelected([(CellElement.INDEPENDENT_DOC, None),
                                              (CellElement.LEADING_DOC, None),
                                              (CellElement.ABOVE_DOC, None)])
        totalNonDocComments = totalComments - totalDocLinks

        totalGroups = sum(self.countGroups())
        count = len(self.selectedItems())
        totalCCGroups = sum(self.countGroupsWithCustomColors())
        totalCCDocs = self.countDocWithCustomColors()

        self.__ccAction.setEnabled(totalNonDocComments == 0 and
                                   not hasMinimizedExcepts)
        self.__removeCCAction.setEnabled(
            self.countItemsWithCML(CMLcc) + totalCCGroups + totalCCDocs == count)
        self.__customColorsSubmenu.setEnabled(self.__ccAction.isEnabled() or
                                              self.__removeCCAction.isEnabled())

        self.__rtAction.setEnabled(not hasComment and
                                   not hasDocstring and
                                   not hasMinimizedExcepts and
                                   totalDocLinks == 0 and
                                   totalGroups == 0)
        self.__removeRTAction.setEnabled(
            self.countItemsWithCML(CMLrt) == count)
        self.__replaceTextSubmenu.setEnabled(self.__rtAction.isEnabled() or
                                             self.__removeRTAction.isEnabled())

        self.__groupAction.setEnabled(self.__canBeGrouped())

        itemsWithDocCML = self.countItemsWithCML(CMLdoc)
        self.__removeDocAction.setEnabled(totalDocLinks + itemsWithDocCML == count)
        if count != 1 or totalNonDocComments != 0 or hasDocstring or totalGroups != 0:
            self.__editDocAction.setEnabled(False)
            self.__autoDocActon.setEnabled(False)
        else:
            self.__editDocAction.setEnabled(True)
            fileName = None
            editor = self.selectedItems()[0].getEditor()
            if editor:
                fileName = editor._parent.getFileName()
            self.__autoDocActon.setEnabled(
                    fileName and totalDocLinks + itemsWithDocCML == 0)
        self.__docSubmenu.setEnabled(self.__removeDocAction.isEnabled() or
                                     self.__editDocAction.isEnabled() or
                                     self.__autoDocActon.isEnabled())

        #self.__cutAction.setEnabled(count == 1)
        #self.__copyAction.setEnabled(count == 1)

    def __actionPrerequisites(self):
        """True if an editor related action can be done"""
        selectedItems = self.selectedItems()
        if not selectedItems:
            return False
        editor = selectedItems[0].getEditor()
        if editor is None:
            return False
        return True

    def onSwitchIfBranch(self):
        """If primitive should switch the branches"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        # The selected items need to be sorted in the reverse line no oreder
        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                if item.kind == CellElement.IF:
                    cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                                 CMLsw)
                    if cmlComment is None:
                        # Did not exist, so needs to be generated
                        line = CMLsw.generate(item.ref.body.beginPos)
                        lineNo = item.getFirstLine()
                        editor.insertLines(line, lineNo)
                    else:
                        # Existed, so it just needs to be deleted
                        cmlComment.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByID(selection)

    def onCustomColors(self):
        """Custom background and foreground colors"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        bgcolor, fgcolor, bordercolor = self.selectedItems()[0].getColors()
        hasDocstring = self.isDocstringInSelection()
        dlg = CustomColorsDialog(bgcolor, fgcolor,
                                 None if hasDocstring else bordercolor,
                                 self.parent())
        if dlg.exec_():
            bgcolor = dlg.backgroundColor()
            fgcolor = dlg.foregroundColor()
            bordercolor = dlg.borderColor()

            editor = self.selectedItems()[0].getEditor()
            with editor:
                # Add colors is done via delete/insert for the Doc and group
                # items. So it is safer to do first because the cc comment may be
                # in a set of selected which is inserted before the doc cml and
                # thus breaks the line numbering
                for item in self.selectedItems():
                    if item.isCMLDoc():
                        # The doc always exists so just add/change the colors
                        item.cmlRef.updateCustomColors(editor, bgcolor,
                                                       fgcolor, bordercolor)
                        continue
                    if item.isGroupItem():
                        # The group always exists so just add/change the colors
                        item.groupBeginCMLRef.updateCustomColors(editor,
                                                                 bgcolor,
                                                                 fgcolor,
                                                                 bordercolor)

                for item in self.sortSelectedReverse():
                    if item.isCMLDoc() or item.isGroupItem():
                        continue
                    if item.isDocstring():
                        cmlComment = CMLVersion.find(
                            item.ref.docstring.leadingCMLComments,
                            CMLcc)
                    else:
                        cmlComment = CMLVersion.find(
                            item.ref.leadingCMLComments, CMLcc)
                    if cmlComment is not None:
                        # Existed, so remove the old one first
                        lineNo = cmlComment.ref.beginLine
                        cmlComment.removeFromText(editor)
                    else:
                        lineNo = item.getFirstLine()

                    pos = item.ref.body.beginPos
                    if item.isDocstring():
                        pos = item.ref.docstring.beginPos
                    line = CMLcc.generate(bgcolor, fgcolor, bordercolor, pos)
                    editor.insertLines(line, lineNo)
            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    def onReplaceText(self):
        """Replace the code with a title"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        dlg = ReplaceTextDialog('Replace text', 'Item caption:', self.parent())

        # If it was one item selection and there was a previous text then
        # set it for editing
        if len(self.selectedItems()) == 1:
            cmlComment = CMLVersion.find(
                self.selectedItems()[0].ref.leadingCMLComments, CMLrt)
            if cmlComment is not None:
                dlg.setText(cmlComment.getText())

        if dlg.exec_():
            replacementText = dlg.text()
            editor = self.selectedItems()[0].getEditor()
            with editor:
                for item in self.sortSelectedReverse():
                    cmlComment = CMLVersion.find(
                        item.ref.leadingCMLComments, CMLrt)
                    if cmlComment is not None:
                        # Existed, so remove the old one first
                        lineNo = cmlComment.ref.beginLine
                        cmlComment.removeFromText(editor)
                    else:
                        lineNo = item.getFirstLine()

                    line = CMLrt.generate(replacementText,
                                          item.ref.body.beginPos)
                    editor.insertLines(line, lineNo)
            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    def onGroupCollapse(self):
        """Collapses the selected group"""
        if not self.__actionPrerequisites():
            return

        # The selected items need to be sorted in the reverse line no oreder
        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                if item.kind == CellElement.OPENED_GROUP_BEGIN:
                    fileName = editor._parent.getFileName()
                    if not fileName:
                        fileName = editor._parent.getShortName()
                    addCollapsedGroup(fileName, item.getGroupId())

        QApplication.processEvents()
        self.parent().redrawNow()

    def onGroupExpand(self):
        """Expands the selected group"""
        if not self.__actionPrerequisites():
            return

        # The selected items need to be sorted in the reverse line no oreder
        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                if item.kind == CellElement.COLLAPSED_GROUP:
                    fileName = editor._parent.getFileName()
                    if not fileName:
                        fileName = editor._parent.getShortName()
                    removeCollapsedGroup(fileName, item.getGroupId())

        QApplication.processEvents()
        self.parent().redrawNow()

    def onGroupEditTitle(self):
        """Edit (or view) the group title"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        dlg = ReplaceTextDialog('Group title', 'Group title:', self.parent())

        # If it was one item selection and there was a previous text then
        # set it for editing
        if len(self.selectedItems()) == 1:
            title = self.selectedItems()[0].getTitle()
            if title:
                dlg.setText(title)

        if dlg.exec_():
            newTitle = dlg.text()
            editor = self.selectedItems()[0].getEditor()
            with editor:
                for item in self.sortSelectedReverse():
                    item.groupBeginCMLRef.updateTitle(editor, newTitle)
            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    def onGroupUngroup(self):
        """Ungroups the items"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        # The selected items need to be sorted in the reverse line no oreder
        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                item.groupEndCMLRef.removeFromText(editor)
                item.groupBeginCMLRef.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByTooltip(selection)

    def onDelete(self):
        """Delete the item"""
        print("Delete")

    def onGroup(self):
        """Groups items into a single one"""
        dlg = ReplaceTextDialog('Group title', 'Group title:', self.parent())

        if dlg.exec_():
            groupTitle = dlg.text()
            selected = self.__extendSelectionForGrouping()
            selected = self.sortSelected(selected)
            editor = selected[0].getEditor()

            firstLine, lastLine, pos = self.__getLineRange(selected)

            groupid = self.parent().generateNewGroupId()
            beginComment = CMLgb.generate(groupid, groupTitle,
                                          None, None, None, pos)
            endComment = CMLge.generate(groupid, pos)

            with editor:
                editor.insertLines(endComment, lastLine + 1)
                editor.insertLines(beginComment, firstLine)

            # Redraw the group collapsed
            fileName = editor._parent.getFileName()
            if not fileName:
                fileName = editor._parent.getShortName()
            addCollapsedGroup(fileName, groupid)

            QApplication.processEvents()
            self.parent().redrawNow()

    def onCopy(self):
        """Copying..."""
        selectedItems = self.selectedItems()
        if selectedItems:
            if len(selectedItems) > 1:
                print('Copying multiple items has not been implemented yet')
                return
            selectedItems[0].copyToClipboard()

    def onCut(self):
        """Cutting..."""
        print("Cut")

    def onRemoveCustomColors(self):
        """Removing the previously set custom colors"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        editor = self.selectedItems()[0].getEditor()
        with editor:
            # Remove colors is done via delete/insert for the Doc and group
            # items. So it is safer to do first because the cc comment may be
            # in a set of selected which is inserted before the doc cml and
            # thus breaks the line numbering
            for item in self.selectedItems():
                # The doc always exists
                if item.isCMLDoc():
                    item.cmlRef.removeCustomColors(editor)
                    continue
                # The group always exists
                if item.isGroupItem():
                    item.groupBeginCMLRef.removeCustomColors(editor)

            # Now handle the rest of items
            for item in self.sortSelectedReverse():
                if item.isCMLDoc() or item.isGroupItem():
                    continue
                if item.isDocstring():
                    cmlComment = CMLVersion.find(
                        item.ref.docstring.leadingCMLComments, CMLcc)
                else:
                    cmlComment = CMLVersion.find(
                        item.ref.leadingCMLComments, CMLcc)
                if cmlComment is not None:
                    cmlComment.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByID(selection)

    def onRemoveReplacementText(self):
        """Removing replacement text"""
        if self.__actionPrerequisites():
            # Memorize the current selection
            selection = self.serializeSelection()

            editor = self.selectedItems()[0].getEditor()
            with editor:
                for item in self.sortSelectedReverse():
                    cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                                 CMLrt)
                    if cmlComment is not None:
                        cmlComment.removeFromText(editor)
            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    def areSelectedOfTypes(self, matchList):
        """Checks if the selected items belong to the match"""
        # match is a list of pairs [kind, subKind]
        #   None would mean 'match any'
        selectedItems = self.selectedItems()
        if selectedItems:
            for selectedItem in selectedItems:
                for kind, subKind in matchList:
                    match = True
                    if kind is not None:
                        if kind != selectedItem.kind:
                            match = False
                    if subKind is not None:
                        if subKind != selectedItem.subKind:
                            match = False
                    if match:
                        break
                else:
                    return False
            return True
        return False

    def __createDocFile(self, link, fromFile):
        """Creates the doc file if needed"""
        fName, _, errMsg = preResolveLinkPath(link, fromFile, True)
        if errMsg:
            logging.error(errMsg)
            return None

        if os.path.exists(fName):
            return fName

        try:
            os.makedirs(os.path.dirname(fName), exist_ok=True)
            with open(fName, 'w') as f:
                pass
        except Exception as exc:
            logging.error('Error creating the documentation file ' +
                          fName + ': ' + str(exc))
            return None
        return fName

    def onEditDoc(self):
        """Editing the CML doc comment"""
        if not self.__actionPrerequisites():
            return

        selectedItem = self.selectedItems()[0]  # Exactly one is selected
        editor = selectedItem.getEditor()
        fileName = editor._parent.getFileName()
        if not fileName:
            fileName = editor._parent.getShortName()

        # It could be a CML doc or an item which has a CML doc
        if selectedItem.isComment():
            cmlRef = selectedItem.cmlRef
        else:
            # If not found then it means the doc link needs to be created
            cmlRef = self.__findCMLinItem(selectedItem, CMLdoc)

        dlg = DocLinkAnchorDialog('Add' if cmlRef is None else 'Edit',
                                  cmlRef, fileName, self.parent())
        if dlg.exec_():
            link = dlg.linkEdit.text().strip()
            anchor = dlg.anchorEdit.text().strip()
            title = dlg.title()
            needToCreate = dlg.needToCreate()

            # First create a file if asked
            if needToCreate:
                docFileName = self.__createDocFile(link, fileName)
                if not docFileName:
                    return

            selection = self.serializeSelection()
            with editor:
                # Now insert a new cml comment or update existing
                if cmlRef:
                    # It is editing, the comment exists
                    lineNo = cmlRef.ref.beginLine
                    pos = cmlRef.ref.beginPos
                    cmlRef.removeFromText(editor)
                    bgColor = cmlRef.bgColor
                    fgColor = cmlRef.fgColor
                    border = cmlRef.border
                else:
                    # It is a new doc link
                    lineNo = selectedItem.getFirstLine()
                    pos = selectedItem.ref.body.beginPos
                    bgColor = None
                    fgColor = None
                    border = None

                line = CMLdoc.generate(link, anchor, title,
                                       bgColor, fgColor, border, pos)
                editor.insertLines(line, lineNo)

            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    @staticmethod
    def __getAutoDocFileName(fileName):
        """Forms the auto doc file name"""
        # Markdown is used as a default documentation format
        fBaseName = os.path.basename(fileName)
        if '.' in fBaseName:
            fileExtension = fBaseName.split('.')[-1]
            fBaseName = fBaseName[:-len(fileExtension)] + 'md'
        else:
            fBaseName += '.md'

        project = GlobalData().project
        if project.isProjectFile(fileName):
            projectDir = project.getProjectDir()
            relativePath = fileName[len(projectDir):]
            projectName = project.getProjectName()
            if relativePath.startswith(projectName):
                relativePath = relativePath.replace(projectName, '', 1)
            return os.path.normpath(
                os.path.sep.join([projectDir + 'doc',
                                  os.path.dirname(relativePath),
                                  fBaseName]))
        return os.path.normpath(
            os.path.sep.join([os.path.dirname(fileName),
                              'doc',
                               fBaseName]))

    def onAutoAddDoc(self):
        """Create a doc file, add a link and open for editing"""
        if not self.__actionPrerequisites():
            return

        selectedItem = self.selectedItems()[0]  # Exactly one is selected
        editor = selectedItem.getEditor()
        fileName = editor._parent.getFileName()
        if not fileName:
            logging.error('Save file before invoking auto doc')
            return

        needContent = False
        newAnchor = 'doc' + str(uuid.uuid4().fields[-1])[-6:]

        docFileName = self.__getAutoDocFileName(fileName)
        if not os.path.exists(docFileName):
            # Create file and populate with the default content
            try:
                os.makedirs(os.path.dirname(docFileName), exist_ok=True)
                with open(docFileName, 'w') as f:
                    pass
            except Exception as exc:
                logging.error('Error creating the documentation file ' +
                              docFileName + ': ' + str(exc))
                return
            needContent = True

        project = GlobalData().project
        if project.isProjectFile(docFileName):
            link = project.getRelativePath(docFileName)
        else:
            link = os.path.relpath(docFileName, fileName)

        # Insert a doc link
        with editor:
            lineNo = selectedItem.getFirstLine()
            line = CMLdoc.generate(link, newAnchor, 'See documentation',
                                   None, None, None,
                                   selectedItem.ref.body.beginPos)
            editor.insertLines(line, lineNo)

            QApplication.processEvents()
            self.parent().redrawNow()

        # Open the file
        if GlobalData().mainWindow.openFile(docFileName, -1):
            if needContent:
                widget = GlobalData().mainWindow.em.getWidgetForFileName(docFileName)
                editor = widget.getEditor()
                editor.text = getDefaultFileDoc(fileName, newAnchor)
                editor.document().setModified(False)

    def onRemoveDoc(self):
        """Removing the CML doc comment"""
        if not self.__actionPrerequisites():
            return

        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                             CMLdoc)
                if cmlComment is not None:
                    cmlComment.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()

    def countInSelected(self, matchList):
        """Counts the number of matching items in selection"""
        # match is a list of pairs [kind, subKind]
        #   None would mean 'match any'
        count = 0
        for selectedItem in self.selectedItems():
            for kind, subKind in matchList:
                match = True
                if kind is not None:
                    if kind != selectedItem.kind:
                        match = False
                if subKind is not None:
                    if subKind != selectedItem.subKind:
                        match = False
                if match:
                    count += 1
        return count

    def isInSelected(self, matchList):
        """Checks if any if the match list items is in the selection"""
        return self.countInSelected(matchList) > 0

    def isDocstringInSelection(self):
        """True if a docstring item in the selection"""
        for item in self.selectedItems():
            if item.isDocstring():
                return True
        return False

    def countComments(self):
        """Count comments in selection"""
        count = 0
        for item in self.selectedItems():
            if item.isComment():
                count += 1
        return count

    def isCommentInSelection(self):
        """True if a comment item in the selection"""
        return self.countComments() > 0

    def countItemsWithCML(self, cmlType):
        """Counts items with have a certain type of a CML comment"""
        count = 0
        for item in self.selectedItems():
            if self.__findCMLinItem(item, cmlType) is not None:
                count += 1
        return count

    def __findCMLinItem(self, item, cmlType):
        """Finds a related CML item"""
        if item.isComment():
            # Doc links are comments so they are skipped here
            return None
        if item.isDocstring():
            # Side comments for docstrings? Nonesense! So they are ignored
            # even if they are collected
            cml = CMLVersion.find(item.ref.docstring.leadingCMLComments, cmlType)
            if cml is not None:
                return cml

        if hasattr(item.ref, 'leadingCMLComments'):
            cml = CMLVersion.find(item.ref.leadingCMLComments, cmlType)
            if cml is not None:
                return cml
        if hasattr(item.ref, 'sideCMLComments'):
            cml = CMLVersion.find(item.ref.sideCMLComments, cmlType)
            if cml is not None:
                return cml
        return None

    def countGroups(self):
        """Counts empty, close and open groups"""
        emptyCount = 0
        closeCount = 0
        openCount = 0
        for item in self.selectedItems():
            if item.kind == CellElement.EMPTY_GROUP:
                emptyCount += 1
            elif item.kind == CellElement.COLLAPSED_GROUP:
                closeCount += 1
            elif item.kind == CellElement.OPENED_GROUP_BEGIN:
                openCount += 1
        return emptyCount, closeCount, openCount

    def countGroupsWithCustomColors(self):
        """Counts the groups with any color defined"""
        emptyCount = 0
        closeCount = 0
        openCount = 0
        for item in self.selectedItems():
            if item.kind in [CellElement.EMPTY_GROUP,
                             CellElement.COLLAPSED_GROUP,
                             CellElement.OPENED_GROUP_BEGIN]:
                if item.groupBeginCMLRef.bgColor is not None or \
                   item.groupBeginCMLRef.fgColor is not None or \
                   item.groupBeginCMLRef.border is not None:
                    if item.kind == CellElement.EMPTY_GROUP:
                        emptyCount += 1
                    elif item.kind == CellElement.COLLAPSED_GROUP:
                        closeCount += 1
                    else:
                        openCount += 1
        return emptyCount, closeCount, openCount

    def countDocWithCustomColors(self):
        count = 0
        for item in self.selectedItems():
            if item.isCMLDoc():
                if item.cmlRef.bgColor is not None or \
                   item.cmlRef.fgColor is not None or \
                   item.cmlRef.border is not None:
                    count += 1
        return count

    def sortSelectedReverse(self):
        """Sorts the selected items in reverse order"""
        result = []
        for item in self.selectedItems():
            itemBegin = item.getAbsPosRange()[0]
            for index in range(len(result)):
                if itemBegin > result[index].getAbsPosRange()[0]:
                    result.insert(index, item)
                    break
            else:
                result.append(item)
        return result

    def sortSelected(self, selected):
        """Sorts the selected items in direct order"""
        result = []
        for item in selected:
            itemBegin = item.getAbsPosRange()[0]
            for index in range(len(result)):
                if itemBegin < result[index].getAbsPosRange()[0]:
                    result.insert(index, item)
                    break
            else:
                result.append(item)
        return result

    def __canBeGrouped(self):
        """True if the selected items can be grouped"""
        # Cannot import it at the top...
        from .flowuiwidget import SMART_ZOOM_ALL, SMART_ZOOM_NO_CONTENT

        if Settings()['smartZoom'] not in [SMART_ZOOM_ALL,
                                           SMART_ZOOM_NO_CONTENT]:
            return False
        if self.__areAllSelectedComments():
            return False
        if self.__areScopeDocstringOrCommentSelected():
            return False
        if self.__isModuleSelected():
            return False

        # Extend the selection with all the selected items comments
        selected = self.__extendSelectionForGrouping()

        if self.__areLoneCommentsSelected(selected):
            return False

        if self.__areIncompleteScopeSelected(selected):
            return False

        scopeCoveredRegions = self.__getSelectedScopeRegions(selected)

        # The __areIfFullySelected() also updates the regions with
        # fully selected if regions
        if not self.__areIfFullySelected(selected, scopeCoveredRegions):
            return False

        selected = self.sortSelected(selected)
        begin = selected[0].getAbsPosRange()[0]
        end = selected[-1].getAbsPosRange()[1]

        if not self.__isSelectionContinuous(selected, scopeCoveredRegions,
                                            begin, end):
            return False

        if self.__moreThanOneIfBranchSelected(selected, scopeCoveredRegions):
            return False
        return True

    def __areAllSelectedComments(self):
        """True if all selected items are comments"""
        for item in self.selectedItems():
            if not item.isComment():
                return False
        return True

    def __areScopeDocstringOrCommentSelected(self):
        for item in self.selectedItems():
            if item.scopedItem():
                if item.subKind in [ScopeCellElement.SIDE_COMMENT,
                                    ScopeCellElement.DOCSTRING]:
                    return True
        return False

    def __isModuleSelected(self):
        """True if the whole module is selected"""
        for item in self.selectedItems():
            if item.kind == CellElement.FILE_SCOPE:
                return True
        return False

    def __areIncompleteScopeSelected(self, selected):
        """True if an incomplete scope selected"""
        for item in selected:
            if item.kind in [CellElement.FOR_SCOPE,
                             CellElement.WHILE_SCOPE]:
                if item.ref.elsePart:
                    for relatedItem in self.findItemsForRef(item.ref.elsePart):
                        if relatedItem not in selected:
                            return True
            elif item.kind in [CellElement.TRY_SCOPE]:
                # It could be that the exception blocks are hidden, so there
                # will be exactly one more item instead of many and that item
                # will have a ref which matches the try scope.
                exceptPartCount = 0
                for exceptPart in item.ref.exceptParts:
                    for relatedItem in self.findItemsForRef(exceptPart):
                        exceptPartCount += 1
                        if relatedItem not in selected:
                            return True
                if exceptPartCount == 0:
                    # here: no except blocks on the diagram, they are collapsed
                    tryItems = self.findItemsForRef(item.ref)
                    for tryItem in tryItems:
                        if tryItem.kind == CellElement.EXCEPT_MINIMIZED:
                            if not tryItem.isSelected():
                                return True
                            break
                    else:
                        # The minimized except is not selected
                        return True
                if item.ref.elsePart:
                    for relatedItem in self.findItemsForRef(item.ref.elsePart):
                        if relatedItem not in selected:
                            return True
                if item.ref.finallyPart:
                    for relatedItem in self.findItemsForRef(item.ref.finallyPart):
                        if relatedItem not in selected:
                            return True
            elif item.kind in [CellElement.ELSE_SCOPE,
                               CellElement.EXCEPT_SCOPE,
                               CellElement.FINALLY_SCOPE]:
                for relatedItem in self.findItemsForRef(item.leaderRef):
                    if relatedItem not in selected:
                        return True
            elif item.kind == CellElement.EXCEPT_MINIMIZED:
                # here: no except blocks on the diagram, they are collapsed
                tryItems = self.findItemsForRef(item.ref)
                for tryItem in tryItems:
                    if tryItem.kind == CellElement.TRY_SCOPE:
                        if tryItem.subKind == ScopeCellElement.TOP_LEFT:
                            if not tryItem.isSelected():
                                return True
                            break
                else:
                    # The try is not selected
                    return True
        return False

    def __extendSelectionForGrouping(self):
        """Extends the selection with the leading and side comments"""
        boundComments = []
        selected = self.selectedItems()
        for item in selected:
            if not item.isComment() and not self.isOpenGroupItem(item):
                for relatedItem in self.findItemsForRef(item.ref):
                    if relatedItem not in selected:
                        boundComments.append(relatedItem)
        return selected + boundComments

    def __areLoneCommentsSelected(self, selected):
        """True if there are comments selected which have no main item selected"""
        for item in selected:
            if item.isComment():
                if item.kind in [CellElement.SIDE_COMMENT,
                                 CellElement.LEADING_COMMENT,
                                 CellElement.ABOVE_COMMENT]:
                    for relatedItem in self.findItemsForRef(item.ref):
                        if relatedItem not in selected:
                            return True
        return False

    def __getLineRange(self, selected):
        first = selected[0]
        last = selected[-1]

        if first.kind == CellElement.OPENED_GROUP_BEGIN:
            firstLine = first.groupBeginCMLRef.ref.parts[0].beginLine
            pos = first.groupBeginCMLRef.ref.parts[0].beginPos
        else:
            firstLine = first.getLineRange()[0]
            pos = first.ref.beginPos

        if last.scopedItem():
            lastLine = last.ref.endLine
        elif last.kind == CellElement.OPENED_GROUP_BEGIN:
            lastLine = last.groupEndCMLRef.ref.parts[-1].endLine
        else:
            lastLine = last.getLineRange()[1]
        return firstLine, lastLine, pos

    def __getSelectedScopeRegions(self, selected):
        """Provides the regions of the selected scope items"""
        coveredRegions = []
        for item in selected:
            if item.scopedItem():
                if item.subKind in [ScopeCellElement.TOP_LEFT]:
                    if item.ref.leadingComment:
                        coveredRegions.append((item.ref.leadingComment.begin,
                                               item.ref.end))
                    else:
                        coveredRegions.append((item.ref.begin, item.ref.end))
            elif item.kind == CellElement.OPENED_GROUP_BEGIN:
                coveredRegions.append(item.getAbsPosRange())
        return coveredRegions

    def __areIfFullySelected(self, selected, regions):
        """Checks if selected IFs are fully selected"""
        for item in selected:
            if item.kind == CellElement.IF:
                ifBegin = item.ref.begin
                ifEnd = item.ref.end
                for item in self.items():
                    if item.isProxyItem():
                        continue
                    if item.scopedItem():
                        if item.subKind not in [ScopeCellElement.TOP_LEFT,
                                                ScopeCellElement.DOCSTRING,
                                                ScopeCellElement.SIDE_COMMENT]:
                            continue
                    if item in selected:
                        continue
                    itemRange = item.getAbsPosRange()
                    if self.isInRegion(itemRange[0], itemRange[1], regions):
                        continue
                    if itemRange[0] > ifBegin and itemRange[0] < ifEnd:
                        return False
                    if itemRange[1] > ifBegin and itemRange[1] < ifEnd:
                        return False
                regions.append([ifBegin, ifEnd])
        return True

    @staticmethod
    def isInRegion(start, finish, regions):
        for region in regions:
            if start >= region[0] and finish <= region[1]:
                return True
        return False

    def __isSelectionContinuous(self, selected, regions, begin, end):
        """Checks if the selection is continuous"""
        for item in self.items():
            if item.isProxyItem():
                continue
            if item.scopedItem():
                if item.subKind not in [ScopeCellElement.TOP_LEFT,
                                        ScopeCellElement.DOCSTRING,
                                        ScopeCellElement.SIDE_COMMENT]:
                    continue
            if item in selected:
                continue
            itemRange = item.getAbsPosRange()
            if self.isInRegion(itemRange[0], itemRange[1], regions):
                continue

            # It is important to keep < and > instead of <= and >=
            # This is because the scopes start with the first statement
            if itemRange[0] > begin and itemRange[0] < end:
                return False
            if itemRange[1] > begin and itemRange[1] < end:
                return False
        return True

    def __moreThanOneIfBranchSelected(self, selected, regions):
        """Checks that the continuous selected items belong to more than one
        not selected IF statements
        """
        ifRef = None
        for item in selected:
            if item.kind != CellElement.IF:
                itemRange = item.getAbsPosRange()
                if item.kind != CellElement.OPENED_GROUP_BEGIN:
                    if self.isInRegion(itemRange[0], itemRange[1], regions):
                        # Here: an item is in a selected scope item, in a selected
                        #       open group or in a fully selected if
                        continue
                # Test if an item belongs to an if statement branch
                if item.kind in [CellElement.OPENED_GROUP_BEGIN,
                                 CellElement.EMPTY_GROUP,
                                 CellElement.COLLAPSED_GROUP]:
                    branchId = item.groupBeginCMLRef.ref.getParentIfID()
                elif item.kind in [CellElement.INDEPENDENT_DOC,
                                   CellElement.LEADING_DOC,
                                   CellElement.ABOVE_DOC]:
                    branchId = item.cmlRef.ref.getParentIfID()
                else:
                    branchId = item.ref.getParentIfID()
                if branchId is not None:
                    if ifRef is None:
                        ifRef = branchId
                    else:
                        if branchId != ifRef:
                            # Selected items belong to more than one branch
                            return True
        return False
Esempio n. 3
0
class CFSceneContextMenuMixin:
    """Encapsulates the context menu handling"""
    def __init__(self):
        self.menu = None
        self.individualMenus = {}

        # Scene menu preparation
        self.sceneMenu = QMenu()
        self.sceneMenu.addAction(getIcon('filesvg.png'), 'Save as SVG...',
                                 self.parent().onSaveAsSVG)
        self.sceneMenu.addAction(getIcon('filepdf.png'), 'Save as PDF...',
                                 self.parent().onSaveAsPDF)
        self.sceneMenu.addAction(getIcon('filepixmap.png'), 'Save as PNG...',
                                 self.parent().onSaveAsPNG)
        self.sceneMenu.addSeparator()
        self.sceneMenu.addAction(getIcon('copymenu.png'), 'Copy to clipboard',
                                 self.parent().copyToClipboard)

        # Common menu for all the individually selected items
        self.commonMenu = QMenu()
        self.__ccAction = self.commonMenu.addAction(
            getIcon("customcolors.png"), "Custom colors...",
            self.onCustomColors)
        self.__rtAction = self.commonMenu.addAction(
            getIcon("replacetitle.png"), "Replace text...", self.onReplaceText)
        self.commonMenu.addSeparator()
        self.__removeCCAction = self.commonMenu.addAction(
            getIcon('trash.png'), 'Remove custom colors',
            self.onRemoveCustomColors)
        self.__removeRTAction = self.commonMenu.addAction(
            getIcon('trash.png'), 'Remove replacement text',
            self.onRemoveReplacementText)
        self.commonMenu.addSeparator()
        self.__cutAction = self.commonMenu.addAction(getIcon("cutmenu.png"),
                                                     "Cut", self.onCut)
        self.__copyAction = self.commonMenu.addAction(getIcon("copymenu.png"),
                                                      "Copy", self.onCopy)
        self.commonMenu.addSeparator()
        self.commonMenu.addAction(getIcon("trash.png"), "Delete",
                                  self.onDelete)

        # Individual items specific menu: begin
        ifContextMenu = QMenu()
        ifContextMenu.addAction(getIcon("switchbranches.png"),
                                "Switch branch layout", self.onSwitchIfBranch)

        self.individualMenus[IfCell] = ifContextMenu
        # Individual items specific menu: end

        # Menu for a group of selected items
        self.groupMenu = QMenu()
        self.__groupAction = self.groupMenu.addAction(getIcon("cfgroup.png"),
                                                      "Group...", self.onGroup)

    def onContextMenu(self, event):
        """Triggered when a context menu should be shown"""
        selectedItems = self.selectedItems()
        selectionCount = len(selectedItems)
        if selectionCount == 0:
            self.sceneMenu.popup(event.screenPos())
            return

        if selectionCount == 1:
            self.__buildIndividualMenu(selectedItems[0])
        else:
            self.__buildGroupMenu(selectedItems)
        self.menu.popup(event.screenPos())

    def __buildIndividualMenu(self, item):
        """Builds a context menu for the given item"""
        self.menu = QMenu()
        if type(item) in self.individualMenus:
            individualPart = self.individualMenus[type(item)]
            self.menu.addActions(individualPart.actions())
            self.menu.addSeparator()
        self.menu.addActions(self.commonMenu.actions())

        # Note: if certain items need to be disabled then it should be done
        #       here
        self.__disableMenuItems()

    def __buildGroupMenu(self, items):
        """Builds a context menu for the group of items"""
        self.menu = QMenu()
        if type(items[0]) in self.individualMenus:
            if self.areSelectedOfTypes([[items[0].kind, items[0].subKind]]):
                individualPart = self.individualMenus[type(items[0])]
                self.menu.addActions(individualPart.actions())
                self.menu.addSeparator()
        self.menu.addActions(self.commonMenu.actions())
        self.menu.addSeparator()
        self.menu.addActions(self.groupMenu.actions())

        # Note: if certain items need to be disabled then it should be done
        #       here
        self.__groupAction.setEnabled(False)
        self.__disableMenuItems()

    def __disableMenuItems(self):
        """Disables the common menu items as needed"""
        hasComment = self.isCommentInSelection()
        hasDocstring = self.isDocstringInSelection()
        hasMinimizedExcepts = self.isInSelected([(CellElement.EXCEPT_MINIMIZED,
                                                  None)])
        count = len(self.selectedItems())

        self.__ccAction.setEnabled(not hasComment and not hasMinimizedExcepts)
        self.__rtAction.setEnabled(not hasComment and not hasDocstring
                                   and not hasMinimizedExcepts)
        self.__removeCCAction.setEnabled(
            self.countItemsWithCML(CMLcc) == count)
        self.__removeRTAction.setEnabled(
            self.countItemsWithCML(CMLrt) == count)
        self.__cutAction.setEnabled(count == 1)
        self.__copyAction.setEnabled(count == 1)

    def __actionPrerequisites(self):
        """True if an editor related action can be done"""
        selectedItems = self.selectedItems()
        if not selectedItems:
            return False
        editor = selectedItems[0].getEditor()
        if editor is None:
            return False
        return True

    def onSwitchIfBranch(self):
        """If primitive should switch the branches"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        # The selected items need to be sorted in the reverse line no oreder
        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                if item.kind == CellElement.IF:
                    cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                                 CMLsw)
                    if cmlComment is None:
                        # Did not exist, so needs to be generated
                        line = CMLsw.generate(item.ref.body.beginPos)
                        lineNo = item.getFirstLine()
                        editor.insertLines(line, lineNo)
                    else:
                        # Existed, so it just needs to be deleted
                        cmlComment.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByID(selection)

    def onCustomColors(self):
        """Custom background and foreground colors"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        bgcolor, fgcolor, bordercolor = self.selectedItems()[0].getColors()
        hasDocstring = self.isDocstringInSelection()
        dlg = CustomColorsDialog(bgcolor, fgcolor,
                                 None if hasDocstring else bordercolor,
                                 self.parent())
        if dlg.exec_():
            bgcolor = dlg.backgroundColor()
            fgcolor = dlg.foregroundColor()
            bordercolor = dlg.borderColor()

            editor = self.selectedItems()[0].getEditor()
            with editor:
                for item in self.sortSelectedReverse():
                    if item.isDocstring():
                        cmlComment = CMLVersion.find(
                            item.ref.docstring.leadingCMLComments, CMLcc)
                    else:
                        cmlComment = CMLVersion.find(
                            item.ref.leadingCMLComments, CMLcc)
                    if cmlComment is not None:
                        # Existed, so remove the old one first
                        lineNo = cmlComment.ref.beginLine
                        cmlComment.removeFromText(editor)
                    else:
                        lineNo = item.getFirstLine()

                    pos = item.ref.body.beginPos
                    if item.isDocstring():
                        pos = item.ref.docstring.beginPos
                    line = CMLcc.generate(bgcolor, fgcolor, bordercolor, pos)
                    editor.insertLines(line, lineNo)
            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    def onReplaceText(self):
        """Replace the code with a title"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        dlg = ReplaceTextDialog(self.parent())

        # If it was one item selection and there was a previous text then
        # set it for editing
        if len(self.selectedItems()) == 1:
            cmlComment = CMLVersion.find(
                self.selectedItems()[0].ref.leadingCMLComments, CMLrt)
            if cmlComment is not None:
                dlg.setText(cmlComment.getText())

        if dlg.exec_():
            replacementText = dlg.text()
            editor = self.selectedItems()[0].getEditor()
            with editor:
                for item in self.sortSelectedReverse():
                    cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                                 CMLrt)
                    if cmlComment is not None:
                        # Existed, so remove the old one first
                        lineNo = cmlComment.ref.beginLine
                        cmlComment.removeFromText(editor)
                    else:
                        lineNo = item.getFirstLine()

                    line = CMLrt.generate(replacementText,
                                          item.ref.body.beginPos)
                    editor.insertLines(line, lineNo)
            QApplication.processEvents()
            self.parent().redrawNow()
            self.restoreSelectionByID(selection)

    def onDelete(self):
        """Delete the item"""
        print("Delete")

    def onGroup(self):
        """Groups items into a single one"""
        print("Group")

    def onCopy(self):
        """Copying..."""
        print("Copy")

    def onCut(self):
        """Cutting..."""
        print("Cut")

    def onRemoveCustomColors(self):
        """Removing the previously set custom colors"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                if item.isDocstring():
                    cmlComment = CMLVersion.find(
                        item.ref.docstring.leadingCMLComments, CMLcc)
                else:
                    cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                                 CMLcc)
                if cmlComment is not None:
                    cmlComment.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByID(selection)

    def onRemoveReplacementText(self):
        """Removing replacement text"""
        if not self.__actionPrerequisites():
            return

        # Memorize the current selection
        selection = self.serializeSelection()

        editor = self.selectedItems()[0].getEditor()
        with editor:
            for item in self.sortSelectedReverse():
                cmlComment = CMLVersion.find(item.ref.leadingCMLComments,
                                             CMLrt)
                if cmlComment is not None:
                    cmlComment.removeFromText(editor)
        QApplication.processEvents()
        self.parent().redrawNow()
        self.restoreSelectionByID(selection)

    def areSelectedOfTypes(self, matchList):
        """Checks if the selected items belong to the match"""
        # match is a list of pairs [kind, subKind]
        #   None would mean 'match any'
        selectedItems = self.selectedItems()
        if selectedItems:
            for selectedItem in selectedItems:
                for kind, subKind in matchList:
                    match = True
                    if kind is not None:
                        if kind != selectedItem.kind:
                            match = False
                    if subKind is not None:
                        if subKind != selectedItem.subKind:
                            match = False
                    if match:
                        break
                else:
                    return False
            return True
        return False

    def isInSelected(self, matchList):
        """Checks if any if the match list items is in the selection"""
        # match is a list of pairs [kind, subKind]
        #   None would mean 'match any'
        for selectedItem in self.selectedItems():
            for kind, subKind in matchList:
                match = True
                if kind is not None:
                    if kind != selectedItem.kind:
                        match = False
                if subKind is not None:
                    if subKind != selectedItem.subKind:
                        match = False
                if match:
                    return True
        return False

    def isDocstringInSelection(self):
        """True if a docstring item in the selection"""
        for item in self.selectedItems():
            if item.isDocstring():
                return True
        return False

    def isCommentInSelection(self):
        """True if a comment item in the selection"""
        for item in self.selectedItems():
            if item.isComment():
                return True
        return False

    def countItemsWithCML(self, cmlType):
        """Counts items with have a certain type of a CML comment"""
        count = 0
        for item in self.selectedItems():
            if item.isComment():
                continue
            if item.isDocstring():
                # Side comments for docstrings? Nonesense! So they are ignored
                # even if they are collected
                if CMLVersion.find(item.ref.docstring.leadingCMLComments,
                                   cmlType) is not None:
                    count += 1
                continue

            if hasattr(item.ref, 'leadingCMLComments'):
                if CMLVersion.find(item.ref.leadingCMLComments,
                                   cmlType) is not None:
                    count += 1
                    continue
            if hasattr(item.ref, 'sideCMLComments'):
                if CMLVersion.find(item.ref.sideCMLComments,
                                   cmlType) is not None:
                    count += 1
        return count

    def sortSelectedReverse(self):
        """Sorts the selected items in reverse order"""
        result = []
        for item in self.selectedItems():
            itemBegin = item.getAbsPosRange()[0]
            for index in range(len(result)):
                if itemBegin > result[index].getAbsPosRange()[0]:
                    result.insert(index, item)
                    break
            else:
                result.append(item)
        return result