author | Eckhart Koeppen <eckhart.koppen@nokia.com> |
Wed, 21 Apr 2010 12:15:23 +0300 | |
branch | RCL_3 |
changeset 12 | cc75c76972ee |
parent 4 | 3b1da2848fc7 |
permissions | -rw-r--r-- |
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/**************************************************************************** |
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** |
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3b1da2848fc7
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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diff
changeset
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the QtGui module of the Qt Toolkit. |
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** |
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** $QT_BEGIN_LICENSE:LGPL$ |
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** No Commercial Usage |
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** This file contains pre-release code and may not be distributed. |
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** You may use this file in accordance with the terms and conditions |
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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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#ifndef QTEXTLAYOUT_H |
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#define QTEXTLAYOUT_H |
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#include <QtCore/qstring.h> |
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#include <QtCore/qnamespace.h> |
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#include <QtCore/qrect.h> |
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#include <QtCore/qvector.h> |
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#include <QtGui/qcolor.h> |
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#include <QtCore/qobject.h> |
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#include <QtGui/qevent.h> |
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#include <QtGui/qtextformat.h> |
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QT_BEGIN_HEADER |
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QT_BEGIN_NAMESPACE |
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QT_MODULE(Gui) |
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class QTextEngine; |
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class QFont; |
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class QRect; |
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class QRegion; |
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class QTextFormat; |
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class QPalette; |
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class QPainter; |
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class Q_GUI_EXPORT QTextInlineObject |
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{ |
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public: |
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QTextInlineObject(int i, QTextEngine *e) : itm(i), eng(e) {} |
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inline QTextInlineObject() : itm(0), eng(0) {} |
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inline bool isValid() const { return eng; } |
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QRectF rect() const; |
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qreal width() const; |
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qreal ascent() const; |
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qreal descent() const; |
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qreal height() const; |
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Qt::LayoutDirection textDirection() const; |
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void setWidth(qreal w); |
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void setAscent(qreal a); |
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void setDescent(qreal d); |
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int textPosition() const; |
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int formatIndex() const; |
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QTextFormat format() const; |
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private: |
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friend class QTextLayout; |
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int itm; |
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QTextEngine *eng; |
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}; |
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class QPaintDevice; |
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class QTextFormat; |
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class QTextLine; |
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class QTextBlock; |
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class QTextOption; |
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class Q_GUI_EXPORT QTextLayout |
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{ |
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public: |
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// does itemization |
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QTextLayout(); |
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QTextLayout(const QString& text); |
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QTextLayout(const QString& text, const QFont &font, QPaintDevice *paintdevice = 0); |
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QTextLayout(const QTextBlock &b); |
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~QTextLayout(); |
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void setFont(const QFont &f); |
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QFont font() const; |
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void setText(const QString& string); |
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QString text() const; |
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void setTextOption(const QTextOption &option); |
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QTextOption textOption() const; |
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void setPreeditArea(int position, const QString &text); |
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int preeditAreaPosition() const; |
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QString preeditAreaText() const; |
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struct FormatRange { |
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int start; |
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int length; |
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QTextCharFormat format; |
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}; |
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void setAdditionalFormats(const QList<FormatRange> &overrides); |
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QList<FormatRange> additionalFormats() const; |
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void clearAdditionalFormats(); |
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void setCacheEnabled(bool enable); |
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bool cacheEnabled() const; |
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void beginLayout(); |
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void endLayout(); |
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void clearLayout(); |
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QTextLine createLine(); |
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int lineCount() const; |
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QTextLine lineAt(int i) const; |
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QTextLine lineForTextPosition(int pos) const; |
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enum CursorMode { |
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SkipCharacters, |
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SkipWords |
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}; |
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bool isValidCursorPosition(int pos) const; |
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int nextCursorPosition(int oldPos, CursorMode mode = SkipCharacters) const; |
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int previousCursorPosition(int oldPos, CursorMode mode = SkipCharacters) const; |
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void draw(QPainter *p, const QPointF &pos, const QVector<FormatRange> &selections = QVector<FormatRange>(), |
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const QRectF &clip = QRectF()) const; |
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void drawCursor(QPainter *p, const QPointF &pos, int cursorPosition) const; |
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void drawCursor(QPainter *p, const QPointF &pos, int cursorPosition, int width) const; |
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QPointF position() const; |
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void setPosition(const QPointF &p); |
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QRectF boundingRect() const; |
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qreal minimumWidth() const; |
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qreal maximumWidth() const; |
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QTextEngine *engine() const { return d; } |
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void setFlags(int flags); |
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private: |
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QTextLayout(QTextEngine *e) : d(e) {} |
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Q_DISABLE_COPY(QTextLayout) |
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friend class QPainter; |
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friend class QPSPrinter; |
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friend class QGraphicsSimpleTextItemPrivate; |
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friend class QGraphicsSimpleTextItem; |
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friend void qt_format_text(const QFont &font, const QRectF &_r, int tf, const QTextOption *, const QString& str, |
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QRectF *brect, int tabstops, int* tabarray, int tabarraylen, |
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QPainter *painter); |
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QTextEngine *d; |
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}; |
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class Q_GUI_EXPORT QTextLine |
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{ |
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public: |
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inline QTextLine() : i(0), eng(0) {} |
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inline bool isValid() const { return eng; } |
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QRectF rect() const; |
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qreal x() const; |
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qreal y() const; |
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qreal width() const; |
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qreal ascent() const; |
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qreal descent() const; |
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qreal height() const; |
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3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
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qreal leading() const; |
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
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41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
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void setLeadingIncluded(bool included); |
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
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bool leadingIncluded() const; |
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qreal naturalTextWidth() const; |
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QRectF naturalTextRect() const; |
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enum Edge { |
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Leading, |
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Trailing |
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}; |
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enum CursorPosition { |
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CursorBetweenCharacters, |
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CursorOnCharacter |
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}; |
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/* cursorPos gets set to the valid position */ |
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qreal cursorToX(int *cursorPos, Edge edge = Leading) const; |
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inline qreal cursorToX(int cursorPos, Edge edge = Leading) const { return cursorToX(&cursorPos, edge); } |
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int xToCursor(qreal x, CursorPosition = CursorBetweenCharacters) const; |
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void setLineWidth(qreal width); |
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void setNumColumns(int columns); |
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void setNumColumns(int columns, qreal alignmentWidth); |
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void setPosition(const QPointF &pos); |
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QPointF position() const; |
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int textStart() const; |
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int textLength() const; |
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int lineNumber() const { return i; } |
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void draw(QPainter *p, const QPointF &point, const QTextLayout::FormatRange *selection = 0) const; |
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private: |
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QTextLine(int line, QTextEngine *e) : i(line), eng(e) {} |
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void layout_helper(int numGlyphs); |
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friend class QTextLayout; |
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int i; |
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QTextEngine *eng; |
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}; |
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QT_END_NAMESPACE |
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QT_END_HEADER |
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#endif // QTEXTLAYOUT_H |