diff options
Diffstat (limited to 'src/gui/image/qimage.cpp')
-rw-r--r-- | src/gui/image/qimage.cpp | 156 |
1 files changed, 114 insertions, 42 deletions
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp index 65793af..61a228d 100644 --- a/src/gui/image/qimage.cpp +++ b/src/gui/image/qimage.cpp @@ -65,6 +65,7 @@ #include <private/qpaintengine_raster_p.h> #include <private/qimage_p.h> +#include <private/qfont_p.h> QT_BEGIN_NAMESPACE @@ -119,9 +120,6 @@ const QVector<QRgb> *qt_image_colortable(const QImage &image) return &image.d->colortable; } -Q_GUI_EXPORT extern int qt_defaultDpiX(); -Q_GUI_EXPORT extern int qt_defaultDpiY(); - QBasicAtomicInt qimage_serial_number = Q_BASIC_ATOMIC_INITIALIZER(1); QImageData::QImageData() @@ -139,42 +137,6 @@ QImageData::QImageData() { } -static int depthForFormat(QImage::Format format) -{ - int depth = 0; - switch(format) { - case QImage::Format_Invalid: - case QImage::NImageFormats: - Q_ASSERT(false); - case QImage::Format_Mono: - case QImage::Format_MonoLSB: - depth = 1; - break; - case QImage::Format_Indexed8: - depth = 8; - break; - case QImage::Format_RGB32: - case QImage::Format_ARGB32: - case QImage::Format_ARGB32_Premultiplied: - depth = 32; - break; - case QImage::Format_RGB555: - case QImage::Format_RGB16: - case QImage::Format_RGB444: - case QImage::Format_ARGB4444_Premultiplied: - depth = 16; - break; - case QImage::Format_RGB666: - case QImage::Format_ARGB6666_Premultiplied: - case QImage::Format_ARGB8565_Premultiplied: - case QImage::Format_ARGB8555_Premultiplied: - case QImage::Format_RGB888: - depth = 24; - break; - } - return depth; -} - /*! \fn QImageData * QImageData::create(const QSize &size, QImage::Format format, int numColors) \internal @@ -195,7 +157,7 @@ QImageData * QImageData::create(const QSize &size, QImage::Format format, int nu uint width = size.width(); uint height = size.height(); - uint depth = depthForFormat(format); + uint depth = qt_depthForFormat(format); switch (format) { case QImage::Format_Mono: @@ -875,7 +837,7 @@ QImageData *QImageData::create(uchar *data, int width, int height, int bpl, QIm return 0; } - const int depth = depthForFormat(format); + const int depth = qt_depthForFormat(format); const int calc_bytes_per_line = ((width * depth + 31)/32) * 4; const int min_bytes_per_line = (width * depth + 7)/8; @@ -1342,6 +1304,14 @@ QImage &QImage::operator=(const QImage &image) } /*! + \fn void QImage::swap(QImage &other) + \since 4.8 + + Swaps image \a other with this image. This operation is very + fast and never fails. +*/ + +/*! \internal */ int QImage::devType() const @@ -2035,6 +2005,88 @@ void QImage::fill(uint pixel) 0, 0, d->width, d->height, d->bytes_per_line); } + +/*! + \fn void QImage::fill(Qt::GlobalColor color) + + \overload + + \since 4.8 + */ + +void QImage::fill(Qt::GlobalColor color) +{ + fill(QColor(color)); +} + + + +/*! + \fn void QImage::fill(Qt::GlobalColor color) + + \overload + + Fills the entire image with the given \a color. + + If the depth of the image is 1, the image will be filled with 1 if + \a color equals Qt::color1; it will otherwise be filled with 0. + + If the depth of the image is 8, the image will be filled with the + index corresponding the \a color in the color table if present; it + will otherwise be filled with 0. + + \since 4.8 +*/ + +void QImage::fill(const QColor &color) +{ + if (!d) + return; + detach(); + + // In case we run out of memory + if (!d) + return; + + if (d->depth == 32) { + uint pixel = color.rgba(); + if (d->format == QImage::Format_ARGB32_Premultiplied) + pixel = PREMUL(pixel); + fill((uint) pixel); + + } else if (d->depth == 16 && d->format == QImage::Format_RGB16) { + qrgb565 p(color.rgba()); + fill((uint) p.rawValue()); + + } else if (d->depth == 1) { + if (color == Qt::color1) + fill((uint) 1); + else + fill((uint) 0); + + } else if (d->depth == 8) { + uint pixel = 0; + for (int i=0; i<d->colortable.size(); ++i) { + if (color.rgba() == d->colortable.at(i)) { + pixel = i; + break; + } + } + fill(pixel); + + } else { + QPainter p(this); + p.setCompositionMode(QPainter::CompositionMode_Source); + p.fillRect(rect(), color); + } + +} + + + + + + /*! Inverts all pixel values in the image. @@ -3792,6 +3844,26 @@ void qInitImageConversions() #endif } +void qGamma_correct_back_to_linear_cs(QImage *image) +{ + extern uchar qt_pow_rgb_gamma[256]; + + // gamma correct the pixels back to linear color space... + int h = image->height(); + int w = image->width(); + + for (int y=0; y<h; ++y) { + uint *pixels = (uint *) image->scanLine(y); + for (int x=0; x<w; ++x) { + uint p = pixels[x]; + uint r = qt_pow_rgb_gamma[qRed(p)]; + uint g = qt_pow_rgb_gamma[qGreen(p)]; + uint b = qt_pow_rgb_gamma[qBlue(p)]; + pixels[x] = (r << 16) | (g << 8) | b | 0xff000000; + } + } +} + /*! Returns a copy of the image in the given \a format. @@ -6246,7 +6318,7 @@ int QImage::bitPlaneCount() const bpc = 12; break; default: - bpc = depthForFormat(d->format); + bpc = qt_depthForFormat(d->format); break; } return bpc; |