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#ifndef QPLAINTEXTEDIT_P_H

#define QPLAINTEXTEDIT_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 "private/qabstractscrollarea_p.h"

#include "QtGui/qtextdocumentfragment.h"

#include "QtGui/qscrollbar.h"

#include "QtGui/qtextcursor.h"

#include "QtGui/qtextformat.h"

#include "QtGui/qmenu.h"

#include "QtGui/qabstracttextdocumentlayout.h"

#include "QtCore/qbasictimer.h"

#include "private/qtextcontrol_p.h"

#include "qplaintextedit.h"

#ifndef QT_NO_TEXTEDIT

QT_BEGIN_NAMESPACE

class QMimeData;

class QPlainTextEdit;

class ExtraArea;

class QPlainTextEditControl : public QTextControl

{

    Q_OBJECT

public:

    QPlainTextEditControl(QPlainTextEdit *parent);

    QMimeData *createMimeDataFromSelection() const;

    bool canInsertFromMimeData(const QMimeData *source) const;

    void insertFromMimeData(const QMimeData *source);

    int hitTest(const QPointF &point, Qt::HitTestAccuracy = Qt::FuzzyHit) const;

    QRectF blockBoundingRect(const QTextBlock &block) const;

    inline QRectF cursorRect(const QTextCursor &cursor) const {

        QRectF r = QTextControl::cursorRect(cursor);

        r.setLeft(qMax(r.left(), (qreal) 0.));

        return r;

    }

    inline QRectF cursorRect() { return cursorRect(textCursor()); }

    void ensureCursorVisible() {

        textEdit->ensureCursorVisible();

        emit microFocusChanged();

    }

    QPlainTextEdit *textEdit;

    int topBlock;

    QTextBlock firstVisibleBlock() const;

    QVariant loadResource(int type, const QUrl &name) {

        return textEdit->loadResource(type, name);

    }

};

class QPlainTextEditPrivate : public QAbstractScrollAreaPrivate

{

    Q_DECLARE_PUBLIC(QPlainTextEdit)

public:

    QPlainTextEditPrivate();

    void init(const QString &txt = QString());

    void _q_repaintContents(const QRectF &contentsRect);

    inline QPoint mapToContents(const QPoint &point) const

        { return QPoint(point.x() + horizontalOffset(), point.y() + verticalOffset()); }

    void _q_adjustScrollbars();

    void _q_verticalScrollbarActionTriggered(int action);

    void ensureViewportLayouted();

    void relayoutDocument();

    void pageUpDown(QTextCursor::MoveOperation op, QTextCursor::MoveMode moveMode, bool moveCursor = true);

    inline int horizontalOffset() const

        { return (q_func()->isRightToLeft() ? (hbar->maximum() - hbar->value()) : hbar->value()); }

    int verticalOffset(int topBlock, int topLine) const;

    int verticalOffset() const;

    inline void sendControlEvent(QEvent *e)

        { control->processEvent(e, QPointF(horizontalOffset(), verticalOffset()), viewport); }

    void updateDefaultTextOption();

    QPlainTextEditControl *control;

    bool tabChangesFocus;

    QBasicTimer autoScrollTimer;

    QPoint autoScrollDragPos;

    QPlainTextEdit::LineWrapMode lineWrap;

    QTextOption::WrapMode wordWrap;

    uint showCursorOnInitialShow : 1;

    uint backgroundVisible : 1;

    uint centerOnScroll : 1;

    uint inDrag : 1;

    uint clickCausedFocus : 1;

    int topLine;

    void setTopLine(int visualTopLine, int dx = 0);

    void setTopBlock(int newTopBlock, int newTopLine, int dx = 0);

    void ensureVisible(int position, bool center, bool forceCenter = false);

    void ensureCursorVisible(bool center = false);

    void updateViewport();

    QPointer<QPlainTextDocumentLayout> documentLayoutPtr;

    void append(const QString &text, Qt::TextFormat format = Qt::AutoText);

    qreal pageUpDownLastCursorY;

    bool pageUpDownLastCursorYIsValid;

#ifdef QT_KEYPAD_NAVIGATION

    QBasicTimer deleteAllTimer;

#endif

    void _q_cursorPositionChanged();

    void _q_modificationChanged(bool);

    int originalOffsetY;

};

QT_END_NAMESPACE

#endif // QT_NO_TEXTEDIT

#endif // QPLAINTEXTEDIT_P_H