OmaPhoto 1.0.0: the Linux port of Compositor
A layered image editor for Linux and Omarchy, ported from Compositor (github.com/robbietilton/Compositor), whose Swift source is its specification. It reads and writes Compositor's .comp projects. Packages for Ubuntu, Fedora and Arch come from the release workflow; scripts/install/ holds one install script per distribution family, and flake.nix serves NixOS. Co-Authored-By: Claude <noreply@anthropic.com>
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#include "HueSaturationSheetFixtures.h"
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// Swift's SpectrumEditor and the sheet's drawn glyphs.
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namespace {
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// How much ink a glyph lays down, over white.
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int ink(const QImage &image)
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{
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int total = 0;
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for (int y = 0; y < image.height(); ++y) {
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for (int x = 0; x < image.width(); ++x)
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total += 255 - qGray(image.pixel(x, y));
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}
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return total;
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}
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// The box round every inked pixel.
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QRect inked(const QImage &image)
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{
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QRect box;
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for (int y = 0; y < image.height(); ++y) {
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for (int x = 0; x < image.width(); ++x) {
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if (qGray(image.pixel(x, y)) < 255)
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box |= QRect(x, y, 1, 1);
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}
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}
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return box;
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}
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}
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class HueSaturationSpectrumTests : public QObject {
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Q_OBJECT
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private slots:
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void theSamplersDrawSwiftsGlyphs();
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void theSpectrumDragsItsNearestHandle();
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void theSpectrumShowsTheHuesAndTheirShift();
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void theSpectrumRepaintsWithTheBand();
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};
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void HueSaturationSpectrumTests::theSamplersDrawSwiftsGlyphs()
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{
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Sheet shown;
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shown.set(HueSaturationSettings(0, 0, 0, false, ColorRange::reds));
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QVERIFY(shown.show());
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QToolButton &sample = shown.child<QToolButton>("hueSample"), &add = shown.child<QToolButton>("hueAdd"),
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&remove = shown.child<QToolButton>("hueRemove"), &targeting = shown.child<QToolButton>("hueTargeting");
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const QColor black = sample.palette().color(QPalette::WindowText), white(Qt::white);
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// Chosen, a quarter of the accent fills a rounded frame.
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QCOMPARE(drawn(sample).pixelColor(1, 10), white);
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shown.session.setHueSampleMode(HueSampleMode::replace);
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QCOMPARE(drawn(sample).pixelColor(1, 10), tinted(sample.palette().color(QPalette::Highlight)));
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QCOMPARE(drawn(sample).pixelColor(0, 0), white);
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shown.session.setHueSampleMode(std::nullopt);
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// Add and Remove carry a disc; a bar cuts across.
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QCOMPARE(drawn(sample).pixelColor(16, 12), white);
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QCOMPARE(drawn(add).pixelColor(16, 12), black);
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QCOMPARE(drawn(remove).pixelColor(16, 12), black);
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const QColor bar = drawn(remove).pixelColor(16, 13);
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QVERIFY(bar != black && bar != white);
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// Add's upright bar cuts where Remove's disc is whole.
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QCOMPARE(drawn(remove).pixelColor(17, 15), black);
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const QColor cut = drawn(add).pixelColor(17, 15);
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QVERIFY(cut != black && cut != white);
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// The eyedropper's bulb, top right, in each.
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for (QToolButton *each : {&sample, &add, &remove})
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QCOMPARE(drawn(*each).pixelColor(15, 6), black);
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// The hand: an outline, hollow in its palm.
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const QImage hand = drawn(targeting);
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QCOMPARE(hand.pixelColor(12, 11), white);
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// Every stroke measured once and pinned.
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QCOMPARE(ink(drawn(sample)), 10478);
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QCOMPARE(ink(drawn(add)), 20338);
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QCOMPARE(ink(drawn(remove)), 21338);
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QCOMPARE(ink(hand), 13232);
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QCOMPARE(inked(drawn(sample)), QRect(6, 4, 12, 12));
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QCOMPARE(inked(drawn(add)), QRect(6, 4, 16, 14));
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QCOMPARE(inked(drawn(remove)), QRect(6, 4, 16, 14));
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QCOMPARE(inked(hand), QRect(6, 3, 14, 16));
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}
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void HueSaturationSpectrumTests::theSpectrumDragsItsNearestHandle()
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{
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Sheet shown;
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shown.set(HueSaturationSettings(0, 0, 0, false, ColorRange::reds));
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QVERIFY(shown.show());
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QWidget &handles = shown.child<QWidget>("spectrumHandles");
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QCOMPARE(handles.height(), 12);
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const double width = handles.width();
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QCOMPARE(width, 412.0);
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// Degrees in sixty-fourths of a turn map back exactly.
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const auto x = [width](double degrees) { return degrees / 360 * width; };
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// 22.5 degrees is nearest the core's end, at 15.
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send(handles, x(22.5), QEvent::MouseButtonPress, Qt::LeftButton);
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QCOMPARE(shown.settings().band(), (HueBand{315, 345, 22.5, 45}));
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// Held, it keeps its handle though 45 is nearer.
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send(handles, x(39.375), QEvent::MouseMove, Qt::LeftButton);
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QCOMPARE(shown.settings().band(), (HueBand{315, 345, 39.375, 45}));
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send(handles, x(39.375), QEvent::MouseButtonRelease, Qt::NoButton);
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// A new press takes the nearest again.
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send(handles, x(43.59375), QEvent::MouseButtonPress, Qt::LeftButton);
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QCOMPARE(shown.settings().band(), (HueBand{315, 345, 39.375, 43.59375}));
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// Past the end, the degrees stop at 360.
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send(handles, width + 50, QEvent::MouseButtonPress, Qt::LeftButton);
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QCOMPARE(shown.settings().band(), (HueBand{315, 0, 39.375, 43.59375}));
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QCOMPARE(shown.child<QLabel>("spectrumReadout").text(), QString("315° 0° 39° 44°"));
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// Nearness wraps: 348.75 is nearer 0 than 315.
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send(handles, x(348.75), QEvent::MouseButtonPress, Qt::LeftButton);
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QCOMPARE(shown.settings().band(), (HueBand{315, 348.75, 39.375, 43.59375}));
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// Before the start, the degrees stop at 0.
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send(handles, -30, QEvent::MouseButtonPress, Qt::LeftButton);
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QCOMPARE(shown.settings().band(), (HueBand{315, 0, 39.375, 43.59375}));
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// The right button neither presses nor drags a handle.
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send(handles, x(90), QEvent::MouseButtonPress, Qt::RightButton, Qt::RightButton);
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send(handles, x(5.625), QEvent::MouseMove, Qt::RightButton);
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QCOMPARE(shown.settings().band(), (HueBand{315, 0, 39.375, 43.59375}));
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// Past its shoulder the held core end is refused.
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send(handles, x(39.375), QEvent::MouseButtonPress, Qt::LeftButton);
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send(handles, x(50.625), QEvent::MouseMove, Qt::LeftButton);
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QCOMPARE(shown.settings().band(), (HueBand{315, 0, 39.375, 43.59375}));
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}
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void HueSaturationSpectrumTests::theSpectrumShowsTheHuesAndTheirShift()
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{
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Sheet shown;
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shown.set(HueSaturationSettings(60, 0, 0, false, ColorRange::reds));
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QVERIFY(shown.show());
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QWidget &editor = shown.child<QWidget>("hueSpectrum");
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QWidget &before = shown.child<QWidget>("spectrumBefore"), &after = shown.child<QWidget>("spectrumAfter"), &handles = shown.child<QWidget>("spectrumHandles");
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QLabel &readout = shown.child<QLabel>("spectrumReadout");
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QCOMPARE(before.height(), 16);
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QCOMPARE(after.height(), 16);
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// Five apart, the readout centred below.
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QCOMPARE(handles.y() - before.geometry().bottom() - 1, 5);
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QCOMPARE(readout.y() - after.geometry().bottom() - 1, 5);
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QVERIFY(std::abs(2 * readout.x() + readout.width() - editor.width()) <= 1);
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QCOMPARE(readout.width(), readout.sizeHint().width());
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// Slices of five degrees: red first, cyan halfway.
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const int middle = before.width() / 2 + 2;
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QCOMPARE(drawn(before).pixelColor(3, 8), QColor(Qt::red));
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QCOMPARE(drawn(before).pixelColor(8, 8).rgb(), QColor::fromHsvF(5.0f / 360, 1, 1).rgb());
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QCOMPARE(drawn(before).pixelColor(middle, 8), QColor(Qt::cyan));
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// Slices overlap: no white between them.
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QCOMPARE(drawn(before).pixelColor(5, 8).blue(), 0);
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// Corners round off over white.
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QVERIFY(drawn(before).pixelColor(0, 0).green() > 200);
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// Reds turn yellow; cyan, outside their band, stays.
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QCOMPARE(drawn(after).pixelColor(3, 8), QColor(Qt::yellow));
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QCOMPARE(drawn(after).pixelColor(middle, 8), QColor(Qt::cyan));
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// Bars for the core, blocks for the shoulders.
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const QColor black = handles.palette().color(QPalette::WindowText), white(Qt::white);
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const QImage marks = drawn(handles);
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const int start = int(345.0 / 360 * handles.width()), end = int(15.0 / 360 * handles.width()), shoulder = int(45.0 / 360 * handles.width());
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QVERIFY(marks.pixelColor(start, 0) == black && marks.pixelColor(start, 11) == black);
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QVERIFY(marks.pixelColor(end, 0) == black && marks.pixelColor(end, 11) == black);
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QVERIFY(marks.pixelColor(shoulder, 6) == black && marks.pixelColor(shoulder, 1) == white && marks.pixelColor(shoulder, 10) == white);
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QVERIFY(marks.pixelColor(shoulder - 3, 6) == black && marks.pixelColor(shoulder + 3, 6) == black && marks.pixelColor(shoulder + 5, 6) == white);
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QCOMPARE(marks.pixelColor(100, 6), white);
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// The marks take the window's text colour.
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QPalette red = shown.sheet->palette();
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red.setColor(QPalette::WindowText, Qt::red);
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shown.sheet->setPalette(red);
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QCOMPARE(drawn(handles).pixelColor(start, 0), QColor(Qt::red));
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}
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void HueSaturationSpectrumTests::theSpectrumRepaintsWithTheBand()
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{
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Sheet shown;
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shown.set(HueSaturationSettings(0, 0, 0, false, ColorRange::reds));
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QVERIFY(shown.show());
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Paints handles(shown.child<QWidget>("spectrumHandles")), after(shown.child<QWidget>("spectrumAfter"));
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QTest::qWait(50);
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handles.count = after.count = 0;
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HueSaturationSettings settings = shown.settings();
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HueBand band = settings.band();
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band.setHandle(2, 30);
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settings.setBand(band);
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shown.set(settings);
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QTRY_VERIFY(handles.count > 0 && after.count > 0);
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}
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QTEST_MAIN(HueSaturationSpectrumTests)
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#include "HueSaturationSpectrumTests.moc"
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