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Diffstat (limited to 'src/gui/image/qpixmap.cpp')
-rw-r--r--src/gui/image/qpixmap.cpp64
1 files changed, 38 insertions, 26 deletions
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index 45ff5f4b44..c452b9aa75 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -113,13 +113,10 @@ void QPixmap::init(int w, int h, Type type)
void QPixmap::init(int w, int h, int type)
{
- QGraphicsSystem* gs = QApplicationPrivate::graphicsSystem();
- if (gs)
- data = gs->createPixmapData(static_cast<QPixmapData::PixelType>(type));
+ if ((w > 0 && h > 0) || type == QPixmapData::BitmapType)
+ data = QPixmapData::create(w, h, (QPixmapData::PixelType) type);
else
- data = QGraphicsSystem::createDefaultPixmapData(static_cast<QPixmapData::PixelType>(type));
-
- data->resize(w, h);
+ data = 0;
}
/*!
@@ -307,7 +304,7 @@ QPixmap::QPixmap(const char * const xpm[])
QImage image(xpm);
if (!image.isNull()) {
- if (data->pixelType() == QPixmapData::BitmapType)
+ if (data && data->pixelType() == QPixmapData::BitmapType)
*this = QBitmap::fromImage(image);
else
*this = fromImage(image);
@@ -322,8 +319,8 @@ QPixmap::QPixmap(const char * const xpm[])
QPixmap::~QPixmap()
{
- Q_ASSERT(data->ref >= 1); // Catch if ref-counting changes again
- if (data->is_cached && data->ref == 1) // ref will be decrememnted after destructor returns
+ Q_ASSERT(!data || data->ref >= 1); // Catch if ref-counting changes again
+ if (data && data->is_cached && data->ref == 1) // ref will be decrememnted after destructor returns
QImagePixmapCleanupHooks::executePixmapDestructionHooks(this);
}
@@ -544,7 +541,7 @@ bool QPixmap::isQBitmap() const
*/
bool QPixmap::isNull() const
{
- return data->isNull();
+ return !data || data->isNull();
}
/*!
@@ -556,7 +553,7 @@ bool QPixmap::isNull() const
*/
int QPixmap::width() const
{
- return data->width();
+ return data ? data->width() : 0;
}
/*!
@@ -568,7 +565,7 @@ int QPixmap::width() const
*/
int QPixmap::height() const
{
- return data->height();
+ return data ? data->height() : 0;
}
/*!
@@ -581,7 +578,7 @@ int QPixmap::height() const
*/
QSize QPixmap::size() const
{
- return QSize(data->width(), data->height());
+ return data ? QSize(data->width(), data->height()) : QSize();
}
/*!
@@ -593,7 +590,7 @@ QSize QPixmap::size() const
*/
QRect QPixmap::rect() const
{
- return QRect(0, 0, data->width(), data->height());
+ return data ? QRect(0, 0, data->width(), data->height()) : QRect();
}
/*!
@@ -609,7 +606,7 @@ QRect QPixmap::rect() const
*/
int QPixmap::depth() const
{
- return data->depth();
+ return data ? data->depth() : 0;
}
/*!
@@ -639,7 +636,7 @@ void QPixmap::resize_helper(const QSize &s)
return;
// Create new pixmap
- QPixmap pm(QSize(w, h), data->type);
+ QPixmap pm(QSize(w, h), data ? data->type : QPixmapData::PixmapType);
bool uninit = false;
#if defined(Q_WS_X11)
QX11PixmapData *x11Data = data->classId() == QPixmapData::X11Class ? static_cast<QX11PixmapData*>(data.data()) : 0;
@@ -728,6 +725,9 @@ void QPixmap::setMask(const QBitmap &mask)
return;
}
+ if (isNull())
+ return;
+
if (static_cast<const QPixmap &>(mask).data == data) // trying to selfmask
return;
@@ -826,11 +826,14 @@ bool QPixmap::load(const QString &fileName, const char *format, Qt::ImageConvers
QFileInfo info(fileName);
QString key = QLatin1String("qt_pixmap_") + info.absoluteFilePath() + QLatin1Char('_') + QString::number(info.lastModified().toTime_t()) + QLatin1Char('_') +
- QString::number(info.size()) + QLatin1Char('_') + QString::number(data->pixelType());
+ QString::number(info.size()) + QLatin1Char('_') + QString::number(data ? data->pixelType() : QPixmapData::PixmapType);
if (QPixmapCache::find(key, *this))
return true;
+ if (!data)
+ data = QPixmapData::create(0, 0, QPixmapData::PixmapType);
+
if (data->fromFile(fileName, format, flags)) {
QPixmapCache::insert(key, *this);
return true;
@@ -863,6 +866,9 @@ bool QPixmap::loadFromData(const uchar *buf, uint len, const char *format, Qt::I
if (len == 0 || buf == 0)
return false;
+ if (!data)
+ data = QPixmapData::create(0, 0, QPixmapData::PixmapType);
+
return data->fromData(buf, len, format, flags);
}
@@ -1008,6 +1014,9 @@ int QPixmap::serialNumber() const
*/
qint64 QPixmap::cacheKey() const
{
+ if (isNull())
+ return 0;
+
int classKey = data->classId();
if (classKey >= 1024)
classKey = -(classKey >> 10);
@@ -1224,7 +1233,7 @@ QPixmap::QPixmap(const QImage& image)
QPixmap &QPixmap::operator=(const QImage &image)
{
- if (data->pixelType() == QPixmapData::BitmapType)
+ if (data && data->pixelType() == QPixmapData::BitmapType)
*this = QBitmap::fromImage(image);
else
*this = fromImage(image);
@@ -1254,7 +1263,7 @@ bool QPixmap::loadFromData(const uchar *buf, uint len, const char *format, Color
*/
bool QPixmap::convertFromImage(const QImage &image, ColorMode mode)
{
- if (data->pixelType() == QPixmapData::BitmapType)
+ if (data && data->pixelType() == QPixmapData::BitmapType)
*this = QBitmap::fromImage(image, colorModeToFlags(mode));
else
*this = fromImage(image, colorModeToFlags(mode));
@@ -1341,7 +1350,7 @@ Q_GUI_EXPORT void copyBlt(QPixmap *dst, int dx, int dy,
bool QPixmap::isDetached() const
{
- return data->ref == 1;
+ return data && data->ref == 1;
}
/*! \internal
@@ -1753,7 +1762,7 @@ QPixmap QPixmap::transformed(const QMatrix &matrix, Qt::TransformationMode mode)
*/
bool QPixmap::hasAlpha() const
{
- return (data->hasAlphaChannel() || !data->mask().isNull());
+ return data && (data->hasAlphaChannel() || !data->mask().isNull());
}
/*!
@@ -1764,7 +1773,7 @@ bool QPixmap::hasAlpha() const
*/
bool QPixmap::hasAlphaChannel() const
{
- return data->hasAlphaChannel();
+ return data && data->hasAlphaChannel();
}
/*!
@@ -1772,7 +1781,7 @@ bool QPixmap::hasAlphaChannel() const
*/
int QPixmap::metric(PaintDeviceMetric metric) const
{
- return data->metric(metric);
+ return data ? data->metric(metric) : 0;
}
/*!
@@ -1844,7 +1853,7 @@ void QPixmap::setAlphaChannel(const QPixmap &alphaChannel)
*/
QPixmap QPixmap::alphaChannel() const
{
- return data->alphaChannel();
+ return data ? data->alphaChannel() : QPixmap();
}
/*!
@@ -1852,7 +1861,7 @@ QPixmap QPixmap::alphaChannel() const
*/
QPaintEngine *QPixmap::paintEngine() const
{
- return data->paintEngine();
+ return data ? data->paintEngine() : 0;
}
/*!
@@ -1867,7 +1876,7 @@ QPaintEngine *QPixmap::paintEngine() const
*/
QBitmap QPixmap::mask() const
{
- return data->mask();
+ return data ? data->mask() : QBitmap();
}
/*!
@@ -1916,6 +1925,9 @@ int QPixmap::defaultDepth()
*/
void QPixmap::detach()
{
+ if (!data)
+ return;
+
QPixmapData::ClassId id = data->classId();
if (id == QPixmapData::RasterClass) {
QRasterPixmapData *rasterData = static_cast<QRasterPixmapData*>(data.data());
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-21 06:39:34 +0000