src/gui/text/qtextdocumentlayout_p.h
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/text/qtextdocumentlayout_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,119 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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_AUTOTEST_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);
+private:
+    QRectF doLayout(int from, int oldLength, int length);
+    void layoutFinished();
+};
+
+QT_END_NAMESPACE
+
+#endif // QTEXTDOCUMENTLAYOUT_P_H