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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@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 QPanGesture;
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;
#ifdef Q_WS_WIN
void _q_gestureTriggered();
#endif
};
QT_END_NAMESPACE
#endif // QT_NO_TEXTEDIT
#endif // QPLAINTEXTEDIT_P_H
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