--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/text/qtextlayout.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,243 @@
+/****************************************************************************
+**
+** 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 QTEXTLAYOUT_H
+#define QTEXTLAYOUT_H
+
+#include <QtCore/qstring.h>
+#include <QtCore/qnamespace.h>
+#include <QtCore/qrect.h>
+#include <QtCore/qvector.h>
+#include <QtGui/qcolor.h>
+#include <QtCore/qobject.h>
+#include <QtGui/qevent.h>
+#include <QtGui/qtextformat.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QTextEngine;
+class QFont;
+class QRect;
+class QRegion;
+class QTextFormat;
+class QPalette;
+class QPainter;
+
+class Q_GUI_EXPORT QTextInlineObject
+{
+public:
+ QTextInlineObject(int i, QTextEngine *e) : itm(i), eng(e) {}
+ inline QTextInlineObject() : itm(0), eng(0) {}
+ inline bool isValid() const { return eng; }
+
+ QRectF rect() const;
+ qreal width() const;
+ qreal ascent() const;
+ qreal descent() const;
+ qreal height() const;
+
+ Qt::LayoutDirection textDirection() const;
+
+ void setWidth(qreal w);
+ void setAscent(qreal a);
+ void setDescent(qreal d);
+
+ int textPosition() const;
+
+ int formatIndex() const;
+ QTextFormat format() const;
+
+private:
+ friend class QTextLayout;
+ int itm;
+ QTextEngine *eng;
+};
+
+class QPaintDevice;
+class QTextFormat;
+class QTextLine;
+class QTextBlock;
+class QTextOption;
+
+class Q_GUI_EXPORT QTextLayout
+{
+public:
+ // does itemization
+ QTextLayout();
+ QTextLayout(const QString& text);
+ QTextLayout(const QString& text, const QFont &font, QPaintDevice *paintdevice = 0);
+ QTextLayout(const QTextBlock &b);
+ ~QTextLayout();
+
+ void setFont(const QFont &f);
+ QFont font() const;
+
+ void setText(const QString& string);
+ QString text() const;
+
+ void setTextOption(const QTextOption &option);
+ QTextOption textOption() const;
+
+ void setPreeditArea(int position, const QString &text);
+ int preeditAreaPosition() const;
+ QString preeditAreaText() const;
+
+ struct FormatRange {
+ int start;
+ int length;
+ QTextCharFormat format;
+ };
+ void setAdditionalFormats(const QList<FormatRange> &overrides);
+ QList<FormatRange> additionalFormats() const;
+ void clearAdditionalFormats();
+
+ void setCacheEnabled(bool enable);
+ bool cacheEnabled() const;
+
+ void beginLayout();
+ void endLayout();
+ void clearLayout();
+
+ QTextLine createLine();
+
+ int lineCount() const;
+ QTextLine lineAt(int i) const;
+ QTextLine lineForTextPosition(int pos) const;
+
+ enum CursorMode {
+ SkipCharacters,
+ SkipWords
+ };
+ bool isValidCursorPosition(int pos) const;
+ int nextCursorPosition(int oldPos, CursorMode mode = SkipCharacters) const;
+ int previousCursorPosition(int oldPos, CursorMode mode = SkipCharacters) const;
+
+ void draw(QPainter *p, const QPointF &pos, const QVector<FormatRange> &selections = QVector<FormatRange>(),
+ const QRectF &clip = QRectF()) const;
+ void drawCursor(QPainter *p, const QPointF &pos, int cursorPosition) const;
+ void drawCursor(QPainter *p, const QPointF &pos, int cursorPosition, int width) const;
+
+ QPointF position() const;
+ void setPosition(const QPointF &p);
+
+ QRectF boundingRect() const;
+
+ qreal minimumWidth() const;
+ qreal maximumWidth() const;
+
+ QTextEngine *engine() const { return d; }
+ void setFlags(int flags);
+private:
+ QTextLayout(QTextEngine *e) : d(e) {}
+ Q_DISABLE_COPY(QTextLayout)
+
+ friend class QPainter;
+ friend class QPSPrinter;
+ friend class QGraphicsSimpleTextItemPrivate;
+ friend class QGraphicsSimpleTextItem;
+ friend void qt_format_text(const QFont &font, const QRectF &_r, int tf, const QTextOption *, const QString& str,
+ QRectF *brect, int tabstops, int* tabarray, int tabarraylen,
+ QPainter *painter);
+ QTextEngine *d;
+};
+
+
+class Q_GUI_EXPORT QTextLine
+{
+public:
+ inline QTextLine() : i(0), eng(0) {}
+ inline bool isValid() const { return eng; }
+
+ QRectF rect() const;
+ qreal x() const;
+ qreal y() const;
+ qreal width() const;
+ qreal ascent() const;
+ qreal descent() const;
+ qreal height() const;
+
+ qreal naturalTextWidth() const;
+ QRectF naturalTextRect() const;
+
+ enum Edge {
+ Leading,
+ Trailing
+ };
+ enum CursorPosition {
+ CursorBetweenCharacters,
+ CursorOnCharacter
+ };
+
+ /* cursorPos gets set to the valid position */
+ qreal cursorToX(int *cursorPos, Edge edge = Leading) const;
+ inline qreal cursorToX(int cursorPos, Edge edge = Leading) const { return cursorToX(&cursorPos, edge); }
+ int xToCursor(qreal x, CursorPosition = CursorBetweenCharacters) const;
+
+ void setLineWidth(qreal width);
+ void setNumColumns(int columns);
+ void setNumColumns(int columns, qreal alignmentWidth);
+
+ void setPosition(const QPointF &pos);
+ QPointF position() const;
+
+ int textStart() const;
+ int textLength() const;
+
+ int lineNumber() const { return i; }
+
+ void draw(QPainter *p, const QPointF &point, const QTextLayout::FormatRange *selection = 0) const;
+
+private:
+ QTextLine(int line, QTextEngine *e) : i(line), eng(e) {}
+ void layout_helper(int numGlyphs);
+ friend class QTextLayout;
+ int i;
+ QTextEngine *eng;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QTEXTLAYOUT_H