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0d4ab86261
In the completion-listbox rtl-Text does not work like it does for newer qt and icons are not displayed for math symbols. The rtl handling is incorrect atm but now it works the same way for all versions of qt. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@25108 a592a061-630c-0410-9148-cb99ea01b6c8
152 lines
3.4 KiB
C++
152 lines
3.4 KiB
C++
// -*- C++ -*-
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/**
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* \file GuiCompleter.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Stefan Schimanski
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef GUICOMPLETER_H
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#define GUICOMPLETER_H
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#include "frontends/WorkArea.h"
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#include "DocIterator.h"
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#include "FuncRequest.h"
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#include "qt_helpers.h"
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#include "support/docstring.h"
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#include <QAbstractItemModel>
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#include <QCompleter>
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#include <QStringListModel>
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#include <QTimer>
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namespace lyx {
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class Buffer;
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namespace frontend {
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class GuiWorkArea;
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class CompleterItemDelegate;
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class GuiCompletionModel;
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class GuiCompleter : private QCompleter
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{
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Q_OBJECT
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public:
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///
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GuiCompleter(GuiWorkArea * gui, QObject * parent = 0);
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///
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virtual ~GuiCompleter();
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///
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bool popupVisible() const;
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///
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bool inlineVisible() const;
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///
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bool popupPossible(Cursor const & cur) const;
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///
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bool inlinePossible(Cursor const & cur) const;
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///
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bool completionAvailable() const;
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/// Activate the current completion, i.e. finalize it.
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void activate();
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/// Do a completion as far as it is unique, but at least one character.
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void tab();
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/// Update the visibility of the popup and the inline completion.
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/// This method might set the update flags of the cursor to request
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/// a redraw.
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void updateVisibility(Cursor & cur, bool start, bool keep, bool cursorInView = true);
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/// Update the visibility of the popup and the inline completion.
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/// This method handles the redraw if needed.
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void updateVisibility(bool start, bool keep);
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///
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QString currentCompletion() const;
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///
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docstring longestUniqueCompletion() const;
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public Q_SLOTS:
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/// Show the popup.
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void showPopup();
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/// Show the inline completion.
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void showInline();
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/// Hide the popup.
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void hidePopup();
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/// Hide the inline completion.
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void hideInline();
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private Q_SLOTS:
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///
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void popupActivated(const QString & completion);
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///
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void popupHighlighted(const QString & completion);
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///
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void updateAvailability();
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/// the asynchronous part of updatePopup(cur)
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void asyncUpdatePopup();
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/// the asynchronous part of hidePopup(cur)
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void asyncHidePopup();
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/// the asynchronous part of hideInline(cur)
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void asyncHideInline();
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private:
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///
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void setCurrentCompletion(QString const & s);
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///
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void showPopup(Cursor & cur);
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///
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void showInline(Cursor & cur);
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///
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void hidePopup(Cursor & cur);
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///
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void hideInline(Cursor & cur);
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///
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void updatePopup(Cursor & cur);
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///
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void updateInline(Cursor & cur, QString const & completion);
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///
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void updatePrefix(Cursor & cur);
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///
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void updateModel(Cursor & cur, bool popupUpdate, bool inlineUpdate);
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///
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bool eventFilter(QObject * watched, QEvent * event);
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///
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GuiWorkArea * gui_;
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///
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DocIterator old_cursor_;
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///
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QTimer popup_timer_;
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///
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QTimer inline_timer_;
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///
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QString last_selection_;
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/// lock to stop updates of the inline completion
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int updateLock_;
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/// the BufferView::inlineCursorPos might be reset by destructive
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/// operations like backspace. Hence, we have to keep this flag
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/// in addition to know whether the completion is to be kept visible.
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bool inlineVisible_;
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///
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bool popupVisible_;
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/// the model reset is asynchronous in hidePopup/Inline. So let's mark
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/// a coming reset here by setting it to false.
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bool modelActive_;
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///
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CompleterItemDelegate * itemDelegate_;
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///
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GuiCompletionModel * model_;
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}; // GuiCompleter
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} // namespace frontend
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} // namespace lyx
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#endif // GUICOMPLETER_H
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