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** This file is part of the QtGui module of the Qt Toolkit.
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** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/

#ifndef QQUICKTEXTCONTROL_P_H
#define QQUICKTEXTCONTROL_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtGui/qtextdocument.h>
#include <QtGui/qtextoption.h>
#include <QtGui/qtextcursor.h>
#include <QtGui/qtextformat.h>
#include <QtCore/qrect.h>
#include <QtGui/qabstracttextdocumentlayout.h>
#include <QtGui/qtextdocumentfragment.h>
#include <QtGui/qclipboard.h>
#include <QtCore/qmimedata.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE


class QStyleSheet;
class QTextDocument;
class QQuickTextControlPrivate;
class QAbstractScrollArea;
class QEvent;
class QTimerEvent;

class Q_AUTOTEST_EXPORT QQuickTextControl : public QObject
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QQuickTextControl)
public:
    explicit QQuickTextControl(QTextDocument *doc, QObject *parent = 0);
    virtual ~QQuickTextControl();

    QTextDocument *document() const;

    void setTextCursor(const QTextCursor &cursor);
    QTextCursor textCursor() const;

    void setTextInteractionFlags(Qt::TextInteractionFlags flags);
    Qt::TextInteractionFlags textInteractionFlags() const;

    QString toPlainText() const;

#ifndef QT_NO_TEXTHTMLPARSER
    QString toHtml() const;
#endif

    bool hasImState() const;
    bool cursorVisible() const;
    void setCursorVisible(bool visible);
    QRectF cursorRect(const QTextCursor &cursor) const;
    QRectF cursorRect() const;
    QRectF selectionRect(const QTextCursor &cursor) const;
    QRectF selectionRect() const;

    QString anchorAt(const QPointF &pos) const;

    void setCursorWidth(int width);

    void setAcceptRichText(bool accept);

    void moveCursor(QTextCursor::MoveOperation op, QTextCursor::MoveMode mode = QTextCursor::MoveAnchor);

    bool canPaste() const;

    void setCursorIsFocusIndicator(bool b);
    void setWordSelectionEnabled(bool enabled);

    void updateCursorRectangle(bool force);

    virtual int hitTest(const QPointF &point, Qt::HitTestAccuracy accuracy) const;
    virtual QRectF blockBoundingRect(const QTextBlock &block) const;

public Q_SLOTS:
    void setPlainText(const QString &text);
    void setHtml(const QString &text);

#ifndef QT_NO_CLIPBOARD
    void cut();
    void copy();
    void paste(QClipboard::Mode mode = QClipboard::Clipboard);
#endif

    void undo();
    void redo();

    void selectAll();

Q_SIGNALS:
    void textChanged();
    void undoAvailable(bool b);
    void redoAvailable(bool b);
    void currentCharFormatChanged(const QTextCharFormat &format);
    void copyAvailable(bool b);
    void selectionChanged();
    void cursorPositionChanged();

    // control signals
    void updateCursorRequest();
    void updateRequest();
    void cursorRectangleChanged();
    void linkActivated(const QString &link);

public:
    virtual void processEvent(QEvent *e, const QMatrix &matrix);
    void processEvent(QEvent *e, const QPointF &coordinateOffset = QPointF());

#ifndef QT_NO_IM
    virtual QVariant inputMethodQuery(Qt::InputMethodQuery property) const;
#endif

    virtual QMimeData *createMimeDataFromSelection() const;
    virtual bool canInsertFromMimeData(const QMimeData *source) const;
    virtual void insertFromMimeData(const QMimeData *source);

    bool cursorOn() const;

protected:
    virtual void timerEvent(QTimerEvent *e);

    virtual bool event(QEvent *e);

private:
    Q_DISABLE_COPY(QQuickTextControl)
    Q_PRIVATE_SLOT(d_func(), void _q_updateCurrentCharFormatAndSelection())
    Q_PRIVATE_SLOT(d_func(), void _q_emitCursorPosChanged(const QTextCursor &))
};


// also used by QLabel
class QQuickTextEditMimeData : public QMimeData
{
public:
    inline QQuickTextEditMimeData(const QTextDocumentFragment &aFragment) : fragment(aFragment) {}

    virtual QStringList formats() const;
protected:
    virtual QVariant retrieveData(const QString &mimeType, QVariant::Type type) const;
private:
    void setup() const;

    mutable QTextDocumentFragment fragment;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QQuickTextControl_H
