雷电芽衣andClaude
c864304695
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>
92 lines
3.5 KiB
C++
92 lines
3.5 KiB
C++
#include "Document/Filters.h"
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#include <QtTest>
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// PixelFilter::trimmed: the crop and the placement that keeps it.
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namespace {
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QImage clearImage(int width, int height, QImage::Format format = QImage::Format_RGBA8888_Premultiplied)
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{
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QImage image(width, height, format);
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image.fill(Qt::transparent);
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return image;
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}
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void paint(QImage &image, const QRect &area)
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{
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for (int y = area.top(); y <= area.bottom(); ++y) {
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for (int x = area.left(); x <= area.right(); ++x)
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image.setPixelColor(x, y, Qt::red);
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}
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}
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}
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class FiltersTests : public QObject {
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Q_OBJECT
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private slots:
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void trimmedCropsToThePixelsThatAreThere();
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void trimmedKeepsTheCropInPlaceUnderTurnAndFlip();
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void trimmedLeavesAFullOrEmptyImageAlone();
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void trimmedReadsAnyFormat();
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};
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void FiltersTests::trimmedCropsToThePixelsThatAreThere()
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{
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QImage image = clearImage(8, 4);
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paint(image, QRect(2, 1, 4, 2));
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// Twice its size, nearest: every pixel is two units.
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const LayerTransform placed{.origin = {10, 20}, .size = {16, 8}, .sampling = LayerSampling::nearest};
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const PixelFilter::Trimmed trimmed = PixelFilter::trimmed(image, placed);
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QCOMPARE(trimmed.image.size(), QSize(4, 2));
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QCOMPARE(trimmed.image.pixelColor(0, 0), QColor(Qt::red));
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QCOMPARE(trimmed.image.pixelColor(3, 1), QColor(Qt::red));
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QCOMPARE(trimmed.transform.size, QSizeF(8, 4));
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QCOMPARE(trimmed.transform.origin, QPointF(14, 22));
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QCOMPARE(trimmed.transform.sampling, placed.sampling);
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}
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void FiltersTests::trimmedKeepsTheCropInPlaceUnderTurnAndFlip()
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{
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QImage image = clearImage(8, 4);
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paint(image, QRect(0, 0, 2, 1));
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// A quarter turn: the crop's middle swings about the centre.
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LayerTransform turned{.origin = {0, 0}, .size = {16, 8}, .rotation = 90};
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PixelFilter::Trimmed trimmed = PixelFilter::trimmed(image, turned);
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QCOMPARE(trimmed.transform.size, QSizeF(4, 2));
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QCOMPARE(trimmed.transform.origin, QPointF(9, -3));
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QCOMPARE(trimmed.transform.rotation, 90.0);
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LayerTransform flipped{.origin = {0, 0}, .size = {16, 8}, .flipX = true};
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trimmed = PixelFilter::trimmed(image, flipped);
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QCOMPARE(trimmed.transform.origin, QPointF(12, 0));
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QVERIFY(trimmed.transform.flipX);
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}
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void FiltersTests::trimmedLeavesAFullOrEmptyImageAlone()
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{
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const LayerTransform placed{.origin = {3, 4}, .size = {8, 4}};
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QImage full = clearImage(8, 4);
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paint(full, full.rect());
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PixelFilter::Trimmed trimmed = PixelFilter::trimmed(full, placed);
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QCOMPARE(trimmed.image.cacheKey(), full.cacheKey());
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QCOMPARE(trimmed.transform, placed);
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// Nothing there: nothing to cut, the image stays.
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const QImage empty = clearImage(8, 4);
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trimmed = PixelFilter::trimmed(empty, placed);
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QCOMPARE(trimmed.image.cacheKey(), empty.cacheKey());
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QCOMPARE(trimmed.transform, placed);
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}
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void FiltersTests::trimmedReadsAnyFormat()
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{
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// Sixteen bits a channel: the alpha byte lies elsewhere.
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QImage image = clearImage(8, 4, QImage::Format_RGBA64);
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image.setPixelColor(5, 3, Qt::green);
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const PixelFilter::Trimmed trimmed = PixelFilter::trimmed(image, {.origin = {0, 0}, .size = {8, 4}});
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QCOMPARE(trimmed.image.size(), QSize(1, 1));
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QCOMPARE(trimmed.image.format(), QImage::Format_RGBA64);
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QCOMPARE(trimmed.image.pixelColor(0, 0), QColor(Qt::green));
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QCOMPARE(trimmed.transform.origin, QPointF(5, 3));
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QCOMPARE(trimmed.transform.size, QSizeF(1, 1));
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}
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QTEST_GUILESS_MAIN(FiltersTests)
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#include "FiltersTests.moc"
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