src_concurrent_qtconcurrentmap.cpp File Reference

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Classes
struct	ImageTransform
	[10] More...
struct	Scaled
	[13] More...

Functions
U	function (const T &t)
	[0]
QImage	scaled (const QImage &image)
	[0]
U	function (T &t)
	[1]
void	scale (QImage &image)
	[2]
V	function (T &result, const U &intermediate) void addToCollage(QImage &collage
	[3]
p	drawImage (offset, thumbnail)
void	computeAverage (int &average, int length)
	[8]
int	colorDistribution (const QImage &string)

Variables
QList< QImage >	images = ...
	[5]
QFuture< QImage >	thumbnails = QtConcurrent::mapped(images, scaled)
QFuture< void >	future = QtConcurrent::map(images, scale)
V const QImage &	thumbnail
static QPoint	offset = QPoint(0, 0)
QFuture< QImage >	collage = QtConcurrent::mappedReduced(images, scaled, addToCollage)
	[15]
QStringList	strings = ...
	[7]
QFuture< void >	squeezedStrings = QtConcurrent::map(strings, &QString::squeeze)
QFuture< QImage >	bgrImages
QFuture< QSet< int > >	wordLengths
QFuture< int >	averageWordLength = QtConcurrent::mappedReduced(strings, &QString::length, computeAverage)
QFuture< QSet< int > >	totalColorDistribution
QFuture< QImage >	thumbNails
std::function< QImage(const QImage &)>	scale
QList< int >	vector { 1, 2, 3, 4 }
	[14]
int	size = 100
auto	process
	[17]
QList< int >	inputs { 1, 2, 3 }
auto	badFuture
auto	goodFuture

Function Documentation

colorDistribution()

int colorDistribution ( const QImage & string )

extern

computeAverage()

void computeAverage ( int & average, int length )

extern

[8]

[9]

drawImage()

p drawImage	(	offset	,
		thumbnail	)

function() [1/3]

U function

(

const T &

t

)

[0]

function() [2/3]

V function	(	T &	result,
		const U &	intermediate ) &

[3]

[4] [4] [5]

function() [3/3]

U function

(

T &

t

)

[1]

[2]

scale()

void scale

(

QImage &

image

)

[2]

[3]

Definition at line 26 of file src_concurrent_qtconcurrentmap.cpp.

scaled()

QImage scaled

(

const QImage &

image

)

[0]

[1]

Definition at line 10 of file src_concurrent_qtconcurrentmap.cpp.

Variable Documentation

averageWordLength

QFuture< int > averageWordLength = QtConcurrent::mappedReduced(strings, &QString::length, computeAverage)

Definition at line 102 of file src_concurrent_qtconcurrentmap.cpp.

badFuture

auto badFuture

Initial value:

= QtConcurrent::mapped(inputs, process)
                         .then([](int val) {
                             qDebug() << val;
                         })

Definition at line 195 of file src_concurrent_qtconcurrentmap.cpp.

bgrImages

QFuture< QImage > bgrImages

Initial value:

= QtConcurrent::mapped(images,
    static_cast<QImage (QImage::*)() const &>(&QImage::rgbSwapped))

Definition at line 86 of file src_concurrent_qtconcurrentmap.cpp.

collage

QList<QImage> collage = QtConcurrent::mappedReduced(images, scaled, addToCollage)

[15]

[16]

[17]

Definition at line 51 of file src_concurrent_qtconcurrentmap.cpp.

future

QList<QImage> future = QtConcurrent::map(images, scale)

Definition at line 32 of file src_concurrent_qtconcurrentmap.cpp.

goodFuture

auto goodFuture

Initial value:

= QtConcurrent::mapped(inputs, process)
                          .then([](QFuture<int> f) {
                              for (auto r : f.results()) {
                                  qDebug() << r;
                              }
                          })

Definition at line 200 of file src_concurrent_qtconcurrentmap.cpp.

images

QList<QImage> images = ...

[5]

[11]

[6]

[7]

[13]

Definition at line 15 of file src_concurrent_qtconcurrentmap.cpp.

inputs

QList<int> inputs { 1, 2, 3 }

Definition at line 194 of file src_concurrent_qtconcurrentmap.cpp.

offset

offset = QPoint(0, 0)

static

Definition at line 45 of file src_concurrent_qtconcurrentmap.cpp.

process

void process

Initial value:

= [](int val) {
    return val * 2;
}

[17]

[18]

Definition at line 190 of file src_concurrent_qtconcurrentmap.cpp.

scale

std::function<QImage(const QImage &)> scale

Initial value:

= [](const QImage &img) {
    return img.scaledToWidth(100, Qt::SmoothTransformation);
}

Definition at line 129 of file src_concurrent_qtconcurrentmap.cpp.

size

int size = 100

Definition at line 159 of file src_concurrent_qtconcurrentmap.cpp.

squeezedStrings

QFuture< void > squeezedStrings = QtConcurrent::map(strings, &QString::squeeze)

Definition at line 82 of file src_concurrent_qtconcurrentmap.cpp.

strings

QStringList strings = ...

[7]

[8]

Definition at line 81 of file src_concurrent_qtconcurrentmap.cpp.

thumbnail

V const QImage & thumbnail

Initial value:

{
    QPainter p(&collage)

Definition at line 42 of file src_concurrent_qtconcurrentmap.cpp.

thumbNails

QFuture< QImage > thumbNails

Initial value:

=
        QtConcurrent::mappedReduced(images, Scaled(100), ImageTransform(),
                                    QtConcurrent::SequentialReduce)

Definition at line 122 of file src_concurrent_qtconcurrentmap.cpp.

thumbnails

QList< QImage > thumbnails = QtConcurrent::mapped(images, scaled)

Definition at line 16 of file src_concurrent_qtconcurrentmap.cpp.

totalColorDistribution

QFuture< QSet< int > > totalColorDistribution

Initial value:

= QtConcurrent::mappedReduced(images, colorDistribution,
                                                                        qOverload<const int&>(&QSet<int>::insert))

Definition at line 107 of file src_concurrent_qtconcurrentmap.cpp.

vector

QList< int > vector { 1, 2, 3, 4 }

[14]

[15]

Definition at line 156 of file src_concurrent_qtconcurrentmap.cpp.

wordLengths

QFuture< QSet< int > > wordLengths

Initial value:

= QtConcurrent::mappedReduced(strings, &QString::length,
                                                             qOverload<const int&>(&QSet<int>::insert))

Definition at line 91 of file src_concurrent_qtconcurrentmap.cpp.