qbrush.h
上传用户:detong
上传日期:2022-06-22
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- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtGui module of the Qt Toolkit.
- **
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 3.0 as published by the Free
- ** Software Foundation and appearing in the file LICENSE.GPL included in
- ** the packaging of this file. Please review the following information
- ** to ensure GNU General Public Licensing requirements will be met:
- ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
- ** exception, Nokia gives you certain additional rights. These rights
- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
- **
- ** Qt for Windows(R) Licensees
- ** As a special exception, Nokia, as the sole copyright holder for Qt
- ** Designer, grants users of the Qt/Eclipse Integration plug-in the
- ** right for the Qt/Eclipse Integration to link to functionality
- ** provided by Qt Designer and its related libraries.
- **
- ** If you are unsure which license is appropriate for your use, please
- ** contact the sales department at qt-sales@nokia.com.
- **
- ****************************************************************************/
- #ifndef QBRUSH_H
- #define QBRUSH_H
- #include <QtCore/qpair.h>
- #include <QtCore/qpoint.h>
- #include <QtCore/qvector.h>
- #include <QtGui/qcolor.h>
- #include <QtGui/qmatrix.h>
- #include <QtGui/qtransform.h>
- #include <QtGui/qimage.h>
- #include <QtGui/qpixmap.h>
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- QT_MODULE(Gui)
- struct QBrushData;
- class QPixmap;
- class QGradient;
- class QVariant;
- class Q_GUI_EXPORT QBrush
- {
- public:
- QBrush();
- QBrush(Qt::BrushStyle bs);
- QBrush(const QColor &color, Qt::BrushStyle bs=Qt::SolidPattern);
- QBrush(Qt::GlobalColor color, Qt::BrushStyle bs=Qt::SolidPattern);
- QBrush(const QColor &color, const QPixmap &pixmap);
- QBrush(Qt::GlobalColor color, const QPixmap &pixmap);
- QBrush(const QPixmap &pixmap);
- QBrush(const QImage &image);
- QBrush(const QBrush &brush);
- QBrush(const QGradient &gradient);
- ~QBrush();
- QBrush &operator=(const QBrush &brush);
- operator QVariant() const;
- inline Qt::BrushStyle style() const;
- void setStyle(Qt::BrushStyle);
- inline const QMatrix &matrix() const;
- void setMatrix(const QMatrix &mat);
- inline QTransform transform() const;
- void setTransform(const QTransform &);
- QPixmap texture() const;
- void setTexture(const QPixmap &pixmap);
- QImage textureImage() const;
- void setTextureImage(const QImage &image);
- inline const QColor &color() const;
- void setColor(const QColor &color);
- inline void setColor(Qt::GlobalColor color);
- const QGradient *gradient() const;
- bool isOpaque() const;
- bool operator==(const QBrush &b) const;
- inline bool operator!=(const QBrush &b) const { return !(operator==(b)); }
- #ifdef QT3_SUPPORT
- inline QT3_SUPPORT operator const QColor&() const;
- QT3_SUPPORT QPixmap *pixmap() const;
- inline QT3_SUPPORT void setPixmap(const QPixmap &pixmap) { setTexture(pixmap); }
- #endif
- private:
- #if defined(Q_WS_X11)
- friend class QX11PaintEngine;
- #endif
- friend class QRasterPaintEngine;
- friend class QRasterPaintEnginePrivate;
- friend struct QSpanData;
- friend class QPainter;
- friend bool qHasPixmapTexture(const QBrush& brush);
- void detach(Qt::BrushStyle newStyle);
- void init(const QColor &color, Qt::BrushStyle bs);
- QBrushData *d;
- void cleanUp(QBrushData *x);
- public:
- inline bool isDetached() const;
- typedef QBrushData * DataPtr;
- inline DataPtr &data_ptr() { return d; }
- };
- inline void QBrush::setColor(Qt::GlobalColor acolor)
- { setColor(QColor(acolor)); }
- Q_DECLARE_TYPEINFO(QBrush, Q_MOVABLE_TYPE);
- Q_DECLARE_SHARED(QBrush)
- /*****************************************************************************
- QBrush stream functions
- *****************************************************************************/
- #ifndef QT_NO_DATASTREAM
- Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QBrush &);
- Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QBrush &);
- #endif
- #ifndef QT_NO_DEBUG_STREAM
- Q_GUI_EXPORT QDebug operator<<(QDebug, const QBrush &);
- #endif
- struct QBrushData
- {
- QAtomicInt ref;
- Qt::BrushStyle style;
- QColor color;
- QTransform transform;
- QRect sourceRect;
- uint hasTransform : 1;
- };
- inline Qt::BrushStyle QBrush::style() const { return d->style; }
- inline const QColor &QBrush::color() const { return d->color; }
- inline const QMatrix &QBrush::matrix() const { return d->transform.toAffine(); }
- inline QTransform QBrush::transform() const { return d->transform; }
- inline bool QBrush::isDetached() const { return d->ref == 1; }
- #ifdef QT3_SUPPORT
- inline QBrush::operator const QColor&() const { return d->color; }
- #endif
- /*******************************************************************************
- * QGradients
- */
- class QGradientPrivate;
- typedef QPair<qreal, QColor> QGradientStop;
- typedef QVector<QGradientStop> QGradientStops;
- class Q_GUI_EXPORT QGradient
- {
- Q_GADGET
- Q_ENUMS(Type Spread CoordinateMode)
- public:
- enum Type {
- LinearGradient,
- RadialGradient,
- ConicalGradient,
- NoGradient
- };
- enum Spread {
- PadSpread,
- ReflectSpread,
- RepeatSpread
- };
- enum CoordinateMode {
- LogicalMode,
- StretchToDeviceMode,
- ObjectBoundingMode
- };
- QGradient();
- Type type() const { return m_type; }
- inline void setSpread(Spread spread);
- Spread spread() const { return m_spread; }
- void setColorAt(qreal pos, const QColor &color);
- void setStops(const QGradientStops &stops);
- QGradientStops stops() const;
- CoordinateMode coordinateMode() const;
- void setCoordinateMode(CoordinateMode mode);
- bool operator==(const QGradient &gradient) const;
- inline bool operator!=(const QGradient &other) const
- { return !operator==(other); }
- bool operator==(const QGradient &gradient); // ### Qt 5: remove
- private:
- friend class QLinearGradient;
- friend class QRadialGradient;
- friend class QConicalGradient;
- Type m_type;
- Spread m_spread;
- QGradientStops m_stops;
- union {
- struct {
- qreal x1, y1, x2, y2;
- } linear;
- struct {
- qreal cx, cy, fx, fy, radius;
- } radial;
- struct {
- qreal cx, cy, angle;
- } conical;
- } m_data;
- void *dummy;
- };
- inline void QGradient::setSpread(Spread aspread)
- { m_spread = aspread; }
- class Q_GUI_EXPORT QLinearGradient : public QGradient
- {
- public:
- QLinearGradient();
- QLinearGradient(const QPointF &start, const QPointF &finalStop);
- QLinearGradient(qreal xStart, qreal yStart, qreal xFinalStop, qreal yFinalStop);
- QPointF start() const;
- void setStart(const QPointF &start);
- inline void setStart(qreal x, qreal y) { setStart(QPointF(x, y)); }
- QPointF finalStop() const;
- void setFinalStop(const QPointF &stop);
- inline void setFinalStop(qreal x, qreal y) { setFinalStop(QPointF(x, y)); }
- };
- class Q_GUI_EXPORT QRadialGradient : public QGradient
- {
- public:
- QRadialGradient();
- QRadialGradient(const QPointF ¢er, qreal radius, const QPointF &focalPoint);
- QRadialGradient(qreal cx, qreal cy, qreal radius, qreal fx, qreal fy);
- QRadialGradient(const QPointF ¢er, qreal radius);
- QRadialGradient(qreal cx, qreal cy, qreal radius);
- QPointF center() const;
- void setCenter(const QPointF ¢er);
- inline void setCenter(qreal x, qreal y) { setCenter(QPointF(x, y)); }
- QPointF focalPoint() const;
- void setFocalPoint(const QPointF &focalPoint);
- inline void setFocalPoint(qreal x, qreal y) { setFocalPoint(QPointF(x, y)); }
- qreal radius() const;
- void setRadius(qreal radius);
- };
- class Q_GUI_EXPORT QConicalGradient : public QGradient
- {
- public:
- QConicalGradient();
- QConicalGradient(const QPointF ¢er, qreal startAngle);
- QConicalGradient(qreal cx, qreal cy, qreal startAngle);
- QPointF center() const;
- void setCenter(const QPointF ¢er);
- inline void setCenter(qreal x, qreal y) { setCenter(QPointF(x, y)); }
- qreal angle() const;
- void setAngle(qreal angle);
- };
- QT_END_NAMESPACE
- QT_END_HEADER
- #endif // QBRUSH_H