diff options
Diffstat (limited to 'src/gui/painting/qbrush.cpp')
| -rw-r--r-- | src/gui/painting/qbrush.cpp | 113 |
1 files changed, 65 insertions, 48 deletions
diff --git a/src/gui/painting/qbrush.cpp b/src/gui/painting/qbrush.cpp index 854d0aa..c22791a 100644 --- a/src/gui/painting/qbrush.cpp +++ b/src/gui/painting/qbrush.cpp @@ -221,7 +221,7 @@ bool qHasPixmapTexture(const QBrush& brush) { if (brush.style() != Qt::TexturePattern) return false; - QTexturedBrushData *tx_data = static_cast<QTexturedBrushData *>(brush.d); + QTexturedBrushData *tx_data = static_cast<QTexturedBrushData *>(brush.d.data()); return tx_data->m_has_pixmap_texture; } @@ -230,6 +230,37 @@ struct QGradientBrushData : public QBrushData QGradient gradient; }; +struct QBrushDataPointerHandler +{ + static inline void deleteData(QBrushData *d) + { + switch (d->style) { + case Qt::TexturePattern: + delete static_cast<QTexturedBrushData*>(d); + break; + case Qt::LinearGradientPattern: + case Qt::RadialGradientPattern: + case Qt::ConicalGradientPattern: + delete static_cast<QGradientBrushData*>(d); + break; + default: + delete d; + } + } + + static inline void cleanup(QBrushData *d) + { + if (d && !d->ref.deref()) { + deleteData(d); + } + } + + static inline void reset(QBrushData *&d, QBrushData *other) + { + cleanup(d); + d = other; + } +}; /*! \class QBrush @@ -364,20 +395,20 @@ void QBrush::init(const QColor &color, Qt::BrushStyle style) { switch(style) { case Qt::NoBrush: - d = nullBrushInstance(); + d.data_ptr() = nullBrushInstance(); d->ref.ref(); if (d->color != color) setColor(color); return; case Qt::TexturePattern: - d = new QTexturedBrushData; + d.data_ptr() = new QTexturedBrushData; break; case Qt::LinearGradientPattern: case Qt::RadialGradientPattern: case Qt::ConicalGradientPattern: - d = new QGradientBrushData; + d.data_ptr() = new QGradientBrushData; break; default: - d = new QBrushData; + d.data_ptr() = new QBrushData; break; } d->ref = 1; @@ -391,8 +422,8 @@ void QBrush::init(const QColor &color, Qt::BrushStyle style) */ QBrush::QBrush() + : d(nullBrushInstance()) { - d = nullBrushInstance(); Q_ASSERT(d); d->ref.ref(); } @@ -435,7 +466,7 @@ QBrush::QBrush(Qt::BrushStyle style) if (qbrush_check_type(style)) init(Qt::black, style); else { - d = nullBrushInstance(); + d.data_ptr() = nullBrushInstance(); d->ref.ref(); } } @@ -451,7 +482,7 @@ QBrush::QBrush(const QColor &color, Qt::BrushStyle style) if (qbrush_check_type(style)) init(color, style); else { - d = nullBrushInstance(); + d.data_ptr() = nullBrushInstance(); d->ref.ref(); } } @@ -468,7 +499,7 @@ QBrush::QBrush(Qt::GlobalColor color, Qt::BrushStyle style) if (qbrush_check_type(style)) init(color, style); else { - d = nullBrushInstance(); + d.data_ptr() = nullBrushInstance(); d->ref.ref(); } } @@ -510,8 +541,8 @@ QBrush::QBrush(Qt::GlobalColor color, const QPixmap &pixmap) */ QBrush::QBrush(const QBrush &other) + : d(other.d.data()) { - d = other.d; d->ref.ref(); } @@ -535,7 +566,7 @@ QBrush::QBrush(const QGradient &gradient) }; init(QColor(), enum_table[gradient.type()]); - QGradientBrushData *grad = static_cast<QGradientBrushData *>(d); + QGradientBrushData *grad = static_cast<QGradientBrushData *>(d.data()); grad->gradient = gradient; } @@ -545,24 +576,11 @@ QBrush::QBrush(const QGradient &gradient) QBrush::~QBrush() { - if (!d->ref.deref()) - cleanUp(d); } void QBrush::cleanUp(QBrushData *x) { - switch (x->style) { - case Qt::TexturePattern: - delete static_cast<QTexturedBrushData*>(x); - break; - case Qt::LinearGradientPattern: - case Qt::RadialGradientPattern: - case Qt::ConicalGradientPattern: - delete static_cast<QGradientBrushData*>(x); - break; - default: - delete x; - } + QBrushDataPointerHandler::deleteData(x); } @@ -571,38 +589,36 @@ void QBrush::detach(Qt::BrushStyle newStyle) if (newStyle == d->style && d->ref == 1) return; - QBrushData *x; + QScopedPointer<QBrushData> x; switch(newStyle) { case Qt::TexturePattern: { QTexturedBrushData *tbd = new QTexturedBrushData; if (d->style == Qt::TexturePattern) { - QTexturedBrushData *data = static_cast<QTexturedBrushData *>(d); + QTexturedBrushData *data = static_cast<QTexturedBrushData *>(d.data()); if (data->m_has_pixmap_texture) tbd->setPixmap(data->pixmap()); else tbd->setImage(data->image()); } - x = tbd; + x.reset(tbd); break; } case Qt::LinearGradientPattern: case Qt::RadialGradientPattern: case Qt::ConicalGradientPattern: - x = new QGradientBrushData; - static_cast<QGradientBrushData *>(x)->gradient = - static_cast<QGradientBrushData *>(d)->gradient; + x.reset(new QGradientBrushData); + static_cast<QGradientBrushData *>(x.data())->gradient = + static_cast<QGradientBrushData *>(d.data())->gradient; break; default: - x = new QBrushData; + x.reset(new QBrushData); break; } x->ref = 1; x->style = newStyle; x->color = d->color; x->transform = d->transform; - if (!d->ref.deref()) - cleanUp(d); - d = x; + d.reset(x.take()); } @@ -615,10 +631,11 @@ void QBrush::detach(Qt::BrushStyle newStyle) QBrush &QBrush::operator=(const QBrush &b) { + if (this == &b) + return *this; + b.d->ref.ref(); - if (!d->ref.deref()) - cleanUp(d); - d = b.d; + d.reset(b.d.data()); return *this; } @@ -713,7 +730,7 @@ QPixmap *QBrush::pixmap() const { if (d->style != Qt::TexturePattern) return 0; - QTexturedBrushData *data = static_cast<QTexturedBrushData*>(d); + QTexturedBrushData *data = static_cast<QTexturedBrushData*>(d.data()); QPixmap &pixmap = data->pixmap(); return pixmap.isNull() ? 0 : &pixmap; } @@ -730,7 +747,7 @@ QPixmap *QBrush::pixmap() const QPixmap QBrush::texture() const { return d->style == Qt::TexturePattern - ? ((QTexturedBrushData*) d)->pixmap() + ? (static_cast<QTexturedBrushData *>(d.data()))->pixmap() : QPixmap(); } @@ -748,7 +765,7 @@ void QBrush::setTexture(const QPixmap &pixmap) { if (!pixmap.isNull()) { detach(Qt::TexturePattern); - QTexturedBrushData *data = static_cast<QTexturedBrushData *>(d); + QTexturedBrushData *data = static_cast<QTexturedBrushData *>(d.data()); data->setPixmap(pixmap); } else { detach(Qt::NoBrush); @@ -771,7 +788,7 @@ void QBrush::setTexture(const QPixmap &pixmap) QImage QBrush::textureImage() const { return d->style == Qt::TexturePattern - ? ((QTexturedBrushData *) d)->image() + ? (static_cast<QTexturedBrushData *>(d.data()))->image() : QImage(); } @@ -796,7 +813,7 @@ void QBrush::setTextureImage(const QImage &image) { if (!image.isNull()) { detach(Qt::TexturePattern); - QTexturedBrushData *data = static_cast<QTexturedBrushData *>(d); + QTexturedBrushData *data = static_cast<QTexturedBrushData *>(d.data()); data->setImage(image); } else { detach(Qt::NoBrush); @@ -812,7 +829,7 @@ const QGradient *QBrush::gradient() const if (d->style == Qt::LinearGradientPattern || d->style == Qt::RadialGradientPattern || d->style == Qt::ConicalGradientPattern) { - return &static_cast<const QGradientBrushData *>(d)->gradient; + return &static_cast<const QGradientBrushData *>(d.data())->gradient; } return 0; } @@ -923,16 +940,16 @@ bool QBrush::operator==(const QBrush &b) const if (b.d->style == d->style && b.d->color == d->color) { switch (d->style) { case Qt::TexturePattern: { - QPixmap &us = ((QTexturedBrushData *) d)->pixmap(); - QPixmap &them = ((QTexturedBrushData *) b.d)->pixmap(); + QPixmap &us = (static_cast<QTexturedBrushData *>(d.data()))->pixmap(); + QPixmap &them = (static_cast<QTexturedBrushData *>(b.d.data()))->pixmap(); return ((us.isNull() && them.isNull()) || us.cacheKey() == them.cacheKey()); } case Qt::LinearGradientPattern: case Qt::RadialGradientPattern: case Qt::ConicalGradientPattern: { - QGradientBrushData *d1 = static_cast<QGradientBrushData *>(d); - QGradientBrushData *d2 = static_cast<QGradientBrushData *>(b.d); + QGradientBrushData *d1 = static_cast<QGradientBrushData *>(d.data()); + QGradientBrushData *d2 = static_cast<QGradientBrushData *>(b.d.data()); return d1->gradient == d2->gradient; } default: |