120 lines
6.8 KiB
C++
120 lines
6.8 KiB
C++
#include "UI/NewCanvasSheet.h"
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#include <QtTest>
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#include <tuple>
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// Swift's NewCanvasUnitTests: units, DPI and the first layer.
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class NewCanvasUnitTests : public QObject {
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Q_OBJECT
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private slots:
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void printSizesBecomePixelsAtTheDPI();
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void unitsRoundTripAndCycle();
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void newProjectKeepsItsResolution();
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void backgroundFillsTheFirstLayer();
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};
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void NewCanvasUnitTests::printSizesBecomePixelsAtTheDPI()
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{
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// US Letter at 300 DPI is 2550 × 3300.
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QCOMPARE(pixels(NewCanvasUnit::inches, "8.5", 300), std::optional(2550));
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QCOMPARE(pixels(NewCanvasUnit::inches, "11", 300), std::optional(3300));
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QCOMPARE(pixels(NewCanvasUnit::millimeters, "210", 300), std::optional(2480));
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QCOMPARE(pixels(NewCanvasUnit::centimeters, "2,54", 72), std::optional(72));
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QCOMPARE(pixels(NewCanvasUnit::pixels, "1920", 300), std::optional(1920));
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QCOMPARE(pixels(NewCanvasUnit::pixels, "19.5", 72), std::nullopt);
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QCOMPARE(pixels(NewCanvasUnit::inches, "200", 300), std::nullopt);
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QCOMPARE(pixels(NewCanvasUnit::inches, "0", 300), std::nullopt);
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// Rounded to the nearest pixel, halves away from zero.
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QCOMPARE(pixels(NewCanvasUnit::inches, "0.005", 300), std::optional(2));
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QCOMPARE(pixels(NewCanvasUnit::inches, "0.0049", 300), std::optional(1));
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QCOMPARE(pixels(NewCanvasUnit::inches, "0.0016", 300), std::nullopt);
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QCOMPARE(pixels(NewCanvasUnit::inches, " 1\t", 72), std::optional(72));
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QCOMPARE(pixels(NewCanvasUnit::inches, "\t\u00a01", 72), std::optional(72));
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// Foundation's .whitespaces holds U+200B; a line break is none.
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QCOMPARE(pixels(NewCanvasUnit::inches, "\u200b1\u200b", 72), std::optional(72));
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QCOMPARE(pixels(NewCanvasUnit::inches, "1\n", 72), std::nullopt);
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// Infinity and NaN fail the range and the whole number.
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QCOMPARE(pixels(NewCanvasUnit::inches, "inf", 72), std::nullopt);
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QCOMPARE(pixels(NewCanvasUnit::pixels, "nan", 72), std::nullopt);
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QCOMPARE(pixels(NewCanvasUnit::pixels, "30000", 72), std::optional(30000));
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QCOMPARE(pixels(NewCanvasUnit::pixels, "30001", 72), std::nullopt);
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}
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void NewCanvasUnitTests::unitsRoundTripAndCycle()
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{
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QCOMPARE(text(NewCanvasUnit::inches, 1920, 72), QString("26.67"));
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QCOMPARE(text(NewCanvasUnit::inches, 2550, 300), QString("8.5"));
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QCOMPARE(text(NewCanvasUnit::inches, 3000, 300), QString("10"));
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QCOMPARE(text(NewCanvasUnit::millimeters, 2480, 300), QString("209.97"));
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QCOMPARE(text(NewCanvasUnit::centimeters, 30000, 72), QString("1058.33"));
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// Foundation rounds the shortest decimal, halves to even (Swift 6.0.3).
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const std::vector<std::tuple<NewCanvasUnit, int, double, QString>> halves{
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{NewCanvasUnit::inches, 153, 72, "2.12"}, {NewCanvasUnit::inches, 9, 72, "0.12"}, {NewCanvasUnit::inches, 27, 72, "0.38"},
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{NewCanvasUnit::centimeters, 54, 72, "1.9"}, {NewCanvasUnit::centimeters, 90, 72, "3.18"}, {NewCanvasUnit::centimeters, 126, 72, "4.44"},
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{NewCanvasUnit::centimeters, 3006, 72, "106.04"}, {NewCanvasUnit::centimeters, 3042, 72, "107.32"}, {NewCanvasUnit::centimeters, 3186, 72, "112.4"},
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{NewCanvasUnit::millimeters, 9, 72, "3.18"}, {NewCanvasUnit::millimeters, 3789, 72, "1336.68"}, {NewCanvasUnit::millimeters, 3969, 72, "1400.18"},
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{NewCanvasUnit::inches, 3, 300, "0.01"}, {NewCanvasUnit::millimeters, 30000, 300, "2540"}, {NewCanvasUnit::inches, 22, 72, "0.31"},
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{NewCanvasUnit::inches, 166, 72, "2.31"}};
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for (const auto &[unit, count, dpi, written] : halves)
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QCOMPARE(text(unit, count, dpi), written);
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// Foundation: the shortest decimal, halves to even (Swift 6.0.3).
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QCOMPARE(pixels(NewCanvasUnit::centimeters, text(NewCanvasUnit::centimeters, 54, 72), 300), std::optional(224));
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QCOMPARE(text(NewCanvasUnit::pixels, 30000, 72), QString("30000"));
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for (NewCanvasUnit unit : {NewCanvasUnit::inches, NewCanvasUnit::centimeters, NewCanvasUnit::millimeters})
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QCOMPARE(pixels(unit, text(unit, 2550, 300), 300), std::optional(2550));
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QCOMPARE(next(NewCanvasUnit::pixels), NewCanvasUnit::inches);
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QCOMPARE(next(NewCanvasUnit::inches), NewCanvasUnit::centimeters);
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QCOMPARE(next(NewCanvasUnit::centimeters), NewCanvasUnit::millimeters);
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QCOMPARE(next(NewCanvasUnit::millimeters), NewCanvasUnit::pixels);
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QCOMPARE(rawValue(NewCanvasUnit::millimeters), QString("mm"));
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QCOMPARE(name(NewCanvasUnit::centimeters), QString("Centimeters"));
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}
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void NewCanvasUnitTests::newProjectKeepsItsResolution()
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{
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EditorSession session;
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session.createNewProject(2550, 3300, 300);
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QCOMPARE(session.document().value().resolution, 300.0);
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QCOMPARE(session.projectSnapshot().value().manifest.resolution, std::optional(300.0));
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// A resolution out of 1 to 9,600 is 72.
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for (double odd : {0.5, 9601.0, qQNaN()}) {
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session.createNewProject(10, 10, odd);
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QCOMPARE(session.document().value().resolution, 72.0);
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}
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session.createNewProject(10, 10, 9600);
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QCOMPARE(session.document().value().resolution, 9600.0);
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session.createNewProject(10, 10, 1);
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QCOMPARE(session.document().value().resolution, 1.0);
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}
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void NewCanvasUnitTests::backgroundFillsTheFirstLayer()
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{
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QCOMPARE(next(NewCanvasBackground::transparent), NewCanvasBackground::white);
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QCOMPARE(next(NewCanvasBackground::white), NewCanvasBackground::black);
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QCOMPARE(next(NewCanvasBackground::black), NewCanvasBackground::transparent);
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QCOMPARE(title(NewCanvasBackground::white), QString("White canvas"));
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for (const auto &[background, value] : {std::pair(NewCanvasBackground::white, 255), std::pair(NewCanvasBackground::black, 0)}) {
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EditorSession session;
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session.createNewProject(40, 30, 72, color(background));
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const ImageLayer layer = session.document().value().layers.front();
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QCOMPARE(layer.name, QString("Background"));
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QCOMPARE(session.activeLayerID(), std::optional(layer.id));
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const QImage image = layer.asset.value().image();
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QCOMPARE(image.size(), QSize(40, 30));
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QCOMPARE(image.format(), QImage::Format_RGBA8888_Premultiplied);
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QCOMPARE(image.pixelColor(0, 0), QColor(value, value, value));
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QCOMPARE(image.pixelColor(39, 29), QColor(value, value, value));
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QCOMPARE(layer.asset.value().thumbnail.pixelColor(0, 0), QColor(value, value, value));
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}
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// A thumbnail, not the whole picture, for the panel.
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EditorSession large;
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large.createNewProject(400, 300, 72, color(NewCanvasBackground::black));
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QCOMPARE(large.document().value().layers.front().asset.value().thumbnail.size(), QSize(96, 72));
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EditorSession session;
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session.createNewProject(40, 30, 72, color(NewCanvasBackground::transparent));
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QCOMPARE(session.document().value().layers.front().name, QString("Layer 1"));
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QVERIFY(!session.document().value().layers.front().asset);
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}
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QTEST_MAIN(NewCanvasUnitTests)
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#include "NewCanvasUnitTests.moc"
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