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113 lines
4.4 KiB
C++
113 lines
4.4 KiB
C++
/*
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* KDevelop Generic Code Completion Support
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*
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* Copyright 2006-2008 Hamish Rodda <rodda@kde.org>
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* Copyright 2007-2008 David Nolden <david.nolden.kdevelop@art-master.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef KDEVPLATFORM_CODECOMPLETIONWORKER_H
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#define KDEVPLATFORM_CODECOMPLETIONWORKER_H
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#include <QtCore/QThread>
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#include <QtCore/QList>
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#include <KDE/KTextEditor/Cursor>
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#include <KDE/KTextEditor/Range>
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#include "../languageexport.h"
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#include "../duchain/duchainpointer.h"
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#include "../codecompletion/codecompletioncontext.h"
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class QMutex;
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namespace KTextEditor {
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class Range;
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class View;
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class Cursor;
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}
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namespace KDevelop
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{
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class CodeCompletion;
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class CompletionTreeElement;
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class CodeCompletionModel;
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class KDEVPLATFORMLANGUAGE_EXPORT CodeCompletionWorker : public QObject
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{
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Q_OBJECT
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public:
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CodeCompletionWorker(CodeCompletionModel* model);
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virtual ~CodeCompletionWorker();
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virtual void abortCurrentCompletion();
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void setFullCompletion(bool);
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bool fullCompletion() const;
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KDevelop::CodeCompletionModel* model() const;
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///When this is called, the result is shown in the completion-list.
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///Call this from within your code
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void foundDeclarations(QList<KSharedPtr<CompletionTreeElement> >, KSharedPtr<CodeCompletionContext> completionContext);
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Q_SIGNALS:
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///Internal connections into the foreground completion model
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void foundDeclarationsReal(QList<KSharedPtr<CompletionTreeElement> >, KSharedPtr<CodeCompletionContext> completionContext);
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protected:
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virtual void computeCompletions(DUContextPointer context, const KTextEditor::Cursor& position, QString followingText, const KTextEditor::Range& contextRange, const QString& contextText);
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///This can be overridden to compute an own grouping in the completion-list.
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///The default implementation groups items in a way that improves the efficiency of the completion-model, thus the default-implementation should be preferred.
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virtual QList<KSharedPtr<CompletionTreeElement> > computeGroups(QList<CompletionTreeItemPointer> items, KSharedPtr<CodeCompletionContext> completionContext);
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///If you don't need to reimplement computeCompletions, you can implement only this.
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virtual KDevelop::CodeCompletionContext* createCompletionContext(KDevelop::DUContextPointer context, const QString &contextText, const QString &followingText, const CursorInRevision &position) const;
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///Override this to change the text-range which is used as context-information for the completion context
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///The foreground-lock and a DUChain read lock are held when this is called
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virtual void updateContextRange(KTextEditor::Range& contextRange, KTextEditor::View* view, DUContextPointer context) const;
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///Can be used to retrieve and set the aborting flag(Enabling it is equivalent to caling abortCompletion())
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///Is always reset from within computeCompletions
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bool& aborting();
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///Emits foundDeclarations() with an empty list. Always call this when you abort the process of computing completions
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void failed();
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public Q_SLOTS:
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///Connection from the foreground thread within CodeCompletionModel
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void computeCompletions(KDevelop::DUContextPointer context, const KTextEditor::Cursor& position, KTextEditor::View* view);
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///This can be used to do special processing within the background, completely bypassing the normal computeCompletions(..) etc. system.
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///It will be executed within the background when the model emits doSpecialProcessingInBackground
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virtual void doSpecialProcessing(uint data);
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private:
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bool m_hasFoundDeclarations;
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QMutex* m_mutex;
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bool m_abort;
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bool m_fullCompletion;
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KDevelop::CodeCompletionModel* m_model;
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};
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}
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#endif // KDEVPLATFORM_CODECOMPLETIONWORKER_H
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