Long live Qt for S60!

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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** 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
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** 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
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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(); }
+
+
+    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;
+
+    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);
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_TEXTEDIT
+
+#endif // QPLAINTEXTEDIT_P_H