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-rw-r--r--src/gui/image/qimage.cpp134
1 files changed, 86 insertions, 48 deletions
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index 21ca1e366d..6d96d7a6cb 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -449,7 +449,7 @@ bool QImageData::checkForAlphaPixels() const
to the pixel() function. The pixel() function returns the color
as a QRgb value indepedent of the image's format.
- In case of monochrome and 8-bit images, the numColors() and
+ In case of monochrome and 8-bit images, the colorCount() and
colorTable() functions provide information about the color
components used to store the image data: The colorTable() function
returns the image's entire color table. To obtain a single entry,
@@ -484,7 +484,7 @@ bool QImageData::checkForAlphaPixels() const
depths are 1 (monochrome), 8 and 32 (for more information see the
\l {QImage#Image Formats}{Image Formats} section).
- The format(), bytesPerLine(), and numBytes() functions provide
+ The format(), bytesPerLine(), and byteCount() functions provide
low-level information about the data stored in the image.
The cacheKey() function returns a number that uniquely
@@ -623,7 +623,7 @@ bool QImageData::checkForAlphaPixels() const
\o Sets the color table used to translate color indexes. Only
monochrome and 8-bit formats.
\row
- \o setNumColors()
+ \o setColorCount()
\o Resizes the color table. Only monochrome and 8-bit formats.
\endtable
@@ -906,7 +906,7 @@ QImageData *QImageData::create(uchar *data, int width, int height, int bpl, QIm
If \a format is an indexed color format, the image color table is
initially empty and must be sufficiently expanded with
- setNumColors() or setColorTable() before the image is used.
+ setColorCount() or setColorTable() before the image is used.
*/
QImage::QImage(uchar* data, int width, int height, Format format)
: QPaintDevice()
@@ -928,7 +928,7 @@ QImage::QImage(uchar* data, int width, int height, Format format)
If \a format is an indexed color format, the image color table is
initially empty and must be sufficiently expanded with
- setNumColors() or setColorTable() before the image is used.
+ setColorCount() or setColorTable() before the image is used.
Unlike the similar QImage constructor that takes a non-const data buffer,
this version will never alter the contents of the buffer. For example,
@@ -954,7 +954,7 @@ QImage::QImage(const uchar* data, int width, int height, Format format)
If \a format is an indexed color format, the image color table is
initially empty and must be sufficiently expanded with
- setNumColors() or setColorTable() before the image is used.
+ setColorCount() or setColorTable() before the image is used.
*/
QImage::QImage(uchar *data, int width, int height, int bytesPerLine, Format format)
:QPaintDevice()
@@ -974,7 +974,7 @@ QImage::QImage(uchar *data, int width, int height, int bytesPerLine, Format form
If \a format is an indexed color format, the image color table is
initially empty and must be sufficiently expanded with
- setNumColors() or setColorTable() before the image is used.
+ setColorCount() or setColorTable() before the image is used.
Unlike the similar QImage constructor that takes a non-const data buffer,
this version will never alter the contents of the buffer. For example,
@@ -1126,7 +1126,7 @@ QImage::QImage(const QImage &image)
Use the constructor that accepts a width, a height and a format
(i.e. specifying the depth and bit order), in combination with the
- setNumColors() function, instead.
+ setColorCount() function, instead.
\oldcode
QImage image(width, height, depth, numColors);
@@ -1135,15 +1135,15 @@ QImage::QImage(const QImage &image)
// For 8 bit images the default number of colors is 256. If
// another number of colors is required it can be specified
- // using the setNumColors() function.
- image.setNumColors(numColors);
+ // using the setColorCount() function.
+ image.setColorCount(numColors);
\endcode
*/
-QImage::QImage(int w, int h, int depth, int numColors, Endian bitOrder)
+QImage::QImage(int w, int h, int depth, int colorCount, Endian bitOrder)
: QPaintDevice()
{
- d = QImageData::create(QSize(w, h), formatFor(depth, bitOrder), numColors);
+ d = QImageData::create(QSize(w, h), formatFor(depth, bitOrder), colorCount);
}
/*!
@@ -1152,7 +1152,7 @@ QImage::QImage(int w, int h, int depth, int numColors, Endian bitOrder)
Use the constructor that accepts a size and a format
(i.e. specifying the depth and bit order), in combination with the
- setNumColors() function, instead.
+ setColorCount() function, instead.
\oldcode
QSize mySize(width, height);
@@ -1163,8 +1163,8 @@ QImage::QImage(int w, int h, int depth, int numColors, Endian bitOrder)
// For 8 bit images the default number of colors is 256. If
// another number of colors is required it can be specified
- // using the setNumColors() function.
- image.setNumColors(numColors);
+ // using the setColorCount() function.
+ image.setColorCount(numColors);
\endcode
*/
QImage::QImage(const QSize& size, int depth, int numColors, Endian bitOrder)
@@ -1232,7 +1232,7 @@ QImage::QImage(uchar* data, int w, int h, int depth, const QRgb* colortable, int
for (int i = 0; i < numColors; ++i)
d->colortable[i] = colortable[i];
} else if (numColors) {
- setNumColors(numColors);
+ setColorCount(numColors);
}
}
@@ -1283,7 +1283,7 @@ QImage::QImage(uchar* data, int w, int h, int depth, int bpl, const QRgb* colort
for (int i = 0; i < numColors; ++i)
d->colortable[i] = colortable[i];
} else if (numColors) {
- setNumColors(numColors);
+ setColorCount(numColors);
}
}
#endif // Q_WS_QWS
@@ -1592,17 +1592,31 @@ int QImage::depth() const
}
/*!
+ \obsolete
\fn int QImage::numColors() const
Returns the size of the color table for the image.
- Notice that numColors() returns 0 for 32-bpp images because these
+ \sa setColorCount()
+*/
+int QImage::numColors() const
+{
+ return d ? d->colortable.size() : 0;
+}
+
+/*!
+ \since 4.6
+ \fn int QImage::colorCount() const
+
+ Returns the size of the color table for the image.
+
+ Notice that colorCount() returns 0 for 32-bpp images because these
images do not use color tables, but instead encode pixel values as
ARGB quadruplets.
- \sa setNumColors(), {QImage#Image Information}{Image Information}
+ \sa setColorCount(), {QImage#Image Information}{Image Information}
*/
-int QImage::numColors() const
+int QImage::colorCount() const
{
return d ? d->colortable.size() : 0;
}
@@ -1711,7 +1725,7 @@ void QImage::setColorTable(const QVector<QRgb> colors)
Returns a list of the colors contained in the image's color table,
or an empty list if the image does not have a color table
- \sa setColorTable(), numColors(), color()
+ \sa setColorTable(), colorCount(), color()
*/
QVector<QRgb> QImage::colorTable() const
{
@@ -1720,12 +1734,24 @@ QVector<QRgb> QImage::colorTable() const
/*!
+ \obsolete
+ Returns the number of bytes occupied by the image data.
+
+ \sa byteCount()
+*/
+int QImage::numBytes() const
+{
+ return d ? d->nbytes : 0;
+}
+
+/*!
+ \since 4.6
Returns the number of bytes occupied by the image data.
\sa bytesPerLine(), bits(), {QImage#Image Information}{Image
Information}
*/
-int QImage::numBytes() const
+int QImage::byteCount() const
{
return d ? d->nbytes : 0;
}
@@ -1733,7 +1759,7 @@ int QImage::numBytes() const
/*!
Returns the number of bytes per image scanline.
- This is equivalent to numBytes()/ height().
+ This is equivalent to byteCount() / height().
\sa scanLine()
*/
@@ -1756,7 +1782,7 @@ int QImage::bytesPerLine() const
*/
QRgb QImage::color(int i) const
{
- Q_ASSERT(i < numColors());
+ Q_ASSERT(i < colorCount());
return d ? d->colortable.at(i) : QRgb(uint(-1));
}
@@ -1767,9 +1793,9 @@ QRgb QImage::color(int i) const
given to \a colorValue. The color value is an ARGB quadruplet.
If \a index is outside the current size of the color table, it is
- expanded with setNumColors().
+ expanded with setColorCount().
- \sa color(), numColors(), setColorTable(), {QImage#Pixel Manipulation}{Pixel
+ \sa color(), colorCount(), setColorTable(), {QImage#Pixel Manipulation}{Pixel
Manipulation}
*/
void QImage::setColor(int i, QRgb c)
@@ -1787,7 +1813,7 @@ void QImage::setColor(int i, QRgb c)
return;
if (i >= d->colortable.size())
- setNumColors(i+1);
+ setColorCount(i+1);
d->colortable[i] = c;
d->has_alpha_clut |= (qAlpha(c) != 255);
}
@@ -1844,7 +1870,7 @@ const uchar *QImage::scanLine(int i) const
data, thus ensuring that this QImage is the only one using the
current return value.
- \sa scanLine(), numBytes()
+ \sa scanLine(), byteCount()
*/
uchar *QImage::bits()
{
@@ -2025,8 +2051,21 @@ void QImage::invertPixels(InvertMode mode)
#endif
/*!
+ \obsolete
Resizes the color table to contain \a numColors entries.
+ \sa setColorCount()
+*/
+
+void QImage::setNumColors(int numColors)
+{
+ setColorCount(numColors);
+}
+
+/*!
+ \since 4.6
+ Resizes the color table to contain \a colorCount entries.
+
If the color table is expanded, all the extra colors will be set to
transparent (i.e qRgba(0, 0, 0, 0)).
@@ -2034,14 +2073,14 @@ void QImage::invertPixels(InvertMode mode)
have entries for all the pixel/index values present in the image,
otherwise the results are undefined.
- \sa numColors(), colorTable(), setColor(), {QImage#Image
+ \sa colorsCount(), colorTable(), setColor(), {QImage#Image
Transformations}{Image Transformations}
*/
-void QImage::setNumColors(int numColors)
+void QImage::setColorCount(int colorCount)
{
if (!d) {
- qWarning("QImage::setNumColors: null image");
+ qWarning("QImage::setColorCount: null image");
return;
}
@@ -2051,17 +2090,16 @@ void QImage::setNumColors(int numColors)
if (!d)
return;
- if (numColors == d->colortable.size())
+ if (colorCount == d->colortable.size())
return;
- if (numColors <= 0) { // use no color table
+ if (colorCount <= 0) { // use no color table
d->colortable = QVector<QRgb>();
return;
}
int nc = d->colortable.size();
- d->colortable.resize(numColors);
- for (int i = nc; i < numColors; ++i)
+ d->colortable.resize(colorCount);
+ for (int i = nc; i < colorCount; ++i)
d->colortable[i] = 0;
-
}
/*!
@@ -3674,7 +3712,7 @@ QRgb QImage::pixel(int x, int y) const
otherwise the parameter must be a QRgb value.
If \a position is not a valid coordinate pair in the image, or if
- \a index_or_rgb >= numColors() in the case of monochrome and
+ \a index_or_rgb >= colorCount() in the case of monochrome and
8-bit images, the result is undefined.
\warning This function is expensive due to the call of the internal
@@ -3835,7 +3873,7 @@ bool QImage::allGray() const
} else {
if (d->colortable.isEmpty())
return true;
- for (int i = 0; i < numColors(); i++)
+ for (int i = 0; i < colorCount(); i++)
if (!qIsGray(d->colortable.at(i)))
return false;
}
@@ -3862,7 +3900,7 @@ bool QImage::isGrayscale() const
case 16:
return allGray();
case 8: {
- for (int i = 0; i < numColors(); i++)
+ for (int i = 0; i < colorCount(); i++)
if (d->colortable.at(i) != qRgb(i,i,i))
return false;
return true;
@@ -4128,7 +4166,7 @@ QImage QImage::createHeuristicMask(bool clipTight) const
int w = width();
int h = height();
QImage m(w, h, Format_MonoLSB);
- m.setNumColors(2);
+ m.setColorCount(2);
m.setColor(0, QColor(Qt::color0).rgba());
m.setColor(1, QColor(Qt::color1).rgba());
m.fill(0xff);
@@ -5703,7 +5741,7 @@ QImage QImage::alphaChannel() const
int h = d->height;
QImage image(w, h, Format_Indexed8);
- image.setNumColors(256);
+ image.setColorCount(256);
// set up gray scale table.
for (int i=0; i<256; ++i)
@@ -5833,7 +5871,7 @@ static QImage smoothScaled(const QImage &source, int w, int h) {
static QImage rotated90(const QImage &image) {
QImage out(image.height(), image.width(), image.format());
- if (image.numColors() > 0)
+ if (image.colorCount() > 0)
out.setColorTable(image.colorTable());
int w = image.width();
int h = image.height();
@@ -5872,7 +5910,7 @@ static QImage rotated90(const QImage &image) {
break;
default:
for (int y=0; y<h; ++y) {
- if (image.numColors())
+ if (image.colorCount())
for (int x=0; x<w; ++x)
out.setPixel(h-y-1, x, image.pixelIndex(x, y));
else
@@ -5892,7 +5930,7 @@ static QImage rotated180(const QImage &image) {
static QImage rotated270(const QImage &image) {
QImage out(image.height(), image.width(), image.format());
- if (image.numColors() > 0)
+ if (image.colorCount() > 0)
out.setColorTable(image.colorTable());
int w = image.width();
int h = image.height();
@@ -5931,7 +5969,7 @@ static QImage rotated270(const QImage &image) {
break;
default:
for (int y=0; y<h; ++y) {
- if (image.numColors())
+ if (image.colorCount())
for (int x=0; x<w; ++x)
out.setPixel(y, w-x-1, image.pixelIndex(x, y));
else
@@ -6071,16 +6109,16 @@ QImage QImage::transformed(const QTransform &matrix, Qt::TransformationMode mode
if (dImage.d->colortable.size() < 256) {
// colors are left in the color table, so pick that one as transparent
dImage.d->colortable.append(0x0);
- memset(dImage.bits(), dImage.d->colortable.size() - 1, dImage.numBytes());
+ memset(dImage.bits(), dImage.d->colortable.size() - 1, dImage.byteCount());
} else {
- memset(dImage.bits(), 0, dImage.numBytes());
+ memset(dImage.bits(), 0, dImage.byteCount());
}
break;
case 1:
case 16:
case 24:
case 32:
- memset(dImage.bits(), 0x00, dImage.numBytes());
+ memset(dImage.bits(), 0x00, dImage.byteCount());
break;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-07 07:40:57 +0000