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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** 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 QTEXTDOCUMENTLAYOUT_P_H
#define QTEXTDOCUMENTLAYOUT_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/qabstracttextdocumentlayout.h"
#include "QtGui/qtextoption.h"
#include "QtGui/qtextobject.h"
QT_BEGIN_NAMESPACE
class QTextListFormat;
class QTextDocumentLayoutPrivate;
class Q_GUI_EXPORT QTextDocumentLayout : public QAbstractTextDocumentLayout
{
Q_DECLARE_PRIVATE(QTextDocumentLayout)
Q_OBJECT
Q_PROPERTY(int cursorWidth READ cursorWidth WRITE setCursorWidth)
Q_PROPERTY(qreal idealWidth READ idealWidth)
Q_PROPERTY(bool contentHasAlignment READ contentHasAlignment)
public:
explicit QTextDocumentLayout(QTextDocument *doc);
// from the abstract layout
void draw(QPainter *painter, const PaintContext &context);
int hitTest(const QPointF &point, Qt::HitTestAccuracy accuracy) const;
int pageCount() const;
QSizeF documentSize() const;
void setCursorWidth(int width);
int cursorWidth() const;
// internal, to support the ugly FixedColumnWidth wordwrap mode in QTextEdit
void setFixedColumnWidth(int width);
// internal for QTextEdit's NoWrap mode
void setViewport(const QRectF &viewport);
virtual QRectF frameBoundingRect(QTextFrame *frame) const;
virtual QRectF blockBoundingRect(const QTextBlock &block) const;
// ####
int layoutStatus() const;
int dynamicPageCount() const;
QSizeF dynamicDocumentSize() const;
void ensureLayouted(qreal);
qreal idealWidth() const;
bool contentHasAlignment() const;
protected:
void documentChanged(int from, int oldLength, int length);
void resizeInlineObject(QTextInlineObject item, int posInDocument, const QTextFormat &format);
void positionInlineObject(QTextInlineObject item, int posInDocument, const QTextFormat &format);
void drawInlineObject(QPainter *p, const QRectF &rect, QTextInlineObject item,
int posInDocument, const QTextFormat &format);
virtual void timerEvent(QTimerEvent *e);
// TODO: remove when we support line height properly in 4.8
enum LineHeightMode { ProportionalHeight, FixedHeight };
void setLineHeight(qreal lineHeight, QTextDocumentLayout::LineHeightMode mode);
private:
QRectF doLayout(int from, int oldLength, int length);
void layoutFinished();
};
QT_END_NAMESPACE
#endif // QTEXTDOCUMENTLAYOUT_P_H
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