diff options
Diffstat (limited to 'src/gui/text/qstatictext_p.h')
| -rw-r--r-- | src/gui/text/qstatictext_p.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/src/gui/text/qstatictext_p.h b/src/gui/text/qstatictext_p.h new file mode 100644 index 0000000000..af11a97c1b --- /dev/null +++ b/src/gui/text/qstatictext_p.h @@ -0,0 +1,203 @@ +/**************************************************************************** +** +** 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 test suite 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 QSTATICTEXT_P_H +#define QSTATICTEXT_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of internal files. This header file may change from version to version +// without notice, or even be removed. +// +// We mean it. +// + +#include "qstatictext.h" + +#include <private/qtextureglyphcache_p.h> +#include <QtGui/qcolor.h> + +QT_BEGIN_NAMESPACE + +class QStaticTextUserData +{ +public: + enum Type { + NoUserData, + OpenGLUserData + }; + + QStaticTextUserData(Type t) : type(t) { ref = 0; } + virtual ~QStaticTextUserData() {} + + QAtomicInt ref; + Type type; +}; + +class Q_GUI_EXPORT QStaticTextItem +{ +public: + QStaticTextItem() : chars(0), numChars(0), useBackendOptimizations(false), + userDataNeedsUpdate(0), m_fontEngine(0), m_userData(0) {} + + QStaticTextItem(const QStaticTextItem &other) + { + operator=(other); + } + + void operator=(const QStaticTextItem &other) + { + glyphPositions = other.glyphPositions; + glyphs = other.glyphs; + chars = other.chars; + numGlyphs = other.numGlyphs; + numChars = other.numChars; + font = other.font; + color = other.color; + useBackendOptimizations = other.useBackendOptimizations; + userDataNeedsUpdate = other.userDataNeedsUpdate; + + m_fontEngine = 0; + m_userData = 0; + setUserData(other.userData()); + setFontEngine(other.fontEngine()); + } + + ~QStaticTextItem(); + + void setUserData(QStaticTextUserData *newUserData) + { + if (m_userData == newUserData) + return; + + if (m_userData != 0 && !m_userData->ref.deref()) + delete m_userData; + + m_userData = newUserData; + if (m_userData != 0) + m_userData->ref.ref(); + } + QStaticTextUserData *userData() const { return m_userData; } + + void setFontEngine(QFontEngine *fe); + QFontEngine *fontEngine() const { return m_fontEngine; } + + union { + QFixedPoint *glyphPositions; // 8 bytes per glyph + int positionOffset; + }; + union { + glyph_t *glyphs; // 4 bytes per glyph + int glyphOffset; + }; + union { + QChar *chars; // 2 bytes per glyph + int charOffset; + }; + // ================= + // 14 bytes per glyph + + // 12 bytes for pointers + int numGlyphs; // 4 bytes per item + int numChars; // 4 bytes per item + QFont font; // 8 bytes per item + QColor color; // 10 bytes per item + char useBackendOptimizations : 1; // 1 byte per item + char userDataNeedsUpdate : 1; // + // ================ + // 51 bytes per item + +private: // Needs special handling in setters, so private to avoid abuse + QFontEngine *m_fontEngine; // 4 bytes per item + QStaticTextUserData *m_userData; // 8 bytes per item + +}; + +class QStaticText; +class Q_AUTOTEST_EXPORT QStaticTextPrivate +{ +public: + QStaticTextPrivate(); + QStaticTextPrivate(const QStaticTextPrivate &other); + ~QStaticTextPrivate(); + + void init(); + void paintText(const QPointF &pos, QPainter *p); + + void invalidate() + { + needsRelayout = true; + } + + QAtomicInt ref; // 4 bytes per text + + QString text; // 4 bytes per text + QFont font; // 8 bytes per text + qreal textWidth; // 8 bytes per text + QSizeF actualSize; // 16 bytes per text + QPointF position; // 16 bytes per text + + QTransform matrix; // 80 bytes per text + QStaticTextItem *items; // 4 bytes per text + int itemCount; // 4 bytes per text + + glyph_t *glyphPool; // 4 bytes per text + QFixedPoint *positionPool; // 4 bytes per text + QChar *charPool; // 4 bytes per text + + QTextOption textOption; // 28 bytes per text + + unsigned char needsRelayout : 1; // 1 byte per text + unsigned char useBackendOptimizations : 1; + unsigned char textFormat : 2; + unsigned char untransformedCoordinates : 1; + // ================ + // 195 bytes per text + + static QStaticTextPrivate *get(const QStaticText *q); +}; + +QT_END_NAMESPACE + +#endif // QSTATICTEXT_P_H |