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 "DialogDesk.h"
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#include "MenuFixtures.h"
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#include "IO/ImageExporter.h"
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#include "IO/ProjectController.h"
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#include "UI/JPEGExportSheet.h"
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#include <QDialog>
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#include <QPushButton>
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#include <QSettings>
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#include <QSlider>
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#include <QStandardPaths>
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#include <QtTest>
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// The PNG and JPEG exports: panels, the sheet, files, alerts.
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class ProjectExportTests : public QObject {
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Q_OBJECT
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private slots:
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void initTestCase();
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void aPNGGoesWhereThePanelSays();
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void aNameTakesTheTypesSuffix();
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void aCancelledExportWritesNothing();
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void aFailedWriteIsExplained();
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void aJPEGPassesThroughItsSheet();
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void aJPEGNeedsAWindowAndADocument();
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void theFileMenuOffersBothExports();
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};
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namespace {
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struct Desk {
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EditorSession session;
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ProjectController controller{session};
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QWidget window;
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DialogDesk dialogs;
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bool done = false;
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Desk()
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{
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session.createDocument(40, 20);
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QImage red(10, 10, QImage::Format_RGBA8888_Premultiplied);
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red.fill(Qt::red);
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session.insert(ImportedImage(red, QImage(), "Red"), QPointF(25, 10));
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window.resize(600, 400);
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window.show();
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controller.window = &window;
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dialogs.note = [this] { return QStringLiteral("busy %1").arg(session.isProjectBusy()); };
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}
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std::function<void()> finished()
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{
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done = false;
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return [this] { done = true; };
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}
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static QString path(const QString &name) { return QDir::current().absoluteFilePath(name); }
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// The shown sheet; a closed one may await deletion.
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JPEGExportSheet *sheet()
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{
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for (JPEGExportSheet *shown : window.findChildren<JPEGExportSheet *>())
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if (shown->isVisible())
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return shown;
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return nullptr;
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}
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};
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// The shown panel's type, which the desk does not record.
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QString panelFilters()
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{
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for (QWidget *widget : QApplication::topLevelWidgets())
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if (auto *panel = qobject_cast<QFileDialog *>(widget); panel && panel->isVisible())
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return panel->nameFilters().join(QLatin1Char(';'));
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return QString();
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}
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QByteArray contents(const QString &path)
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{
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QFile file(path);
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return file.open(QIODevice::ReadOnly) ? file.readAll() : QByteArray();
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}
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}
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void ProjectExportTests::initTestCase()
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{
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QStandardPaths::setTestModeEnabled(true);
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QSettings().clear();
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}
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void ProjectExportTests::aPNGGoesWhereThePanelSays()
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{
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Desk desk;
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const int steps = desk.session.history.undoCount();
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// Named in full: panels open where the last went.
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desk.dialogs.replies = {Desk::path("shot")};
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desk.dialogs.note = panelFilters;
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desk.controller.exportPNG(desk.finished());
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QVERIFY(desk.session.isProjectBusy());
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QTRY_VERIFY(desk.done);
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QCOMPARE(desk.dialogs.seen, QStringList{"panel|Export PNG|save|file|Untitled.png|png|PNG image (*.png)"});
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QVERIFY(!desk.session.isProjectBusy());
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const QByteArray written = contents(Desk::path("shot.png"));
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QCOMPARE(written, ImageExporter::pngData(desk.session.projectSnapshot().value()));
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const QImage image = QImage::fromData(written, "png");
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QCOMPARE(image.size(), QSize(40, 20));
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QCOMPARE(image.pixelColor(25, 10), QColor(255, 0, 0));
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QCOMPARE(image.pixelColor(5, 5).alpha(), 0);
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QCOMPARE(desk.session.history.undoCount(), steps);
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}
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void ProjectExportTests::aNameTakesTheTypesSuffix()
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{
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Desk desk;
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desk.session.setProjectPath(Desk::path("Poster.comp"));
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// A name with another suffix gains the type's own.
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desk.dialogs.replies = {Desk::path("poster.jpg")};
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desk.controller.exportPNG(desk.finished());
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QTRY_VERIFY(desk.done);
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QCOMPARE(desk.dialogs.seen, QStringList{"panel|Export PNG|save|file|Poster.png|png|busy 1"});
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QVERIFY(QFileInfo::exists(Desk::path("poster.jpg.png")) && !QFileInfo::exists(Desk::path("poster.jpg")));
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// One in any case keeps it.
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desk.dialogs.seen.clear();
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desk.dialogs.replies = {Desk::path("LOUD.PNG")};
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desk.controller.exportPNG(desk.finished());
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QTRY_VERIFY(desk.done);
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QVERIFY(QFileInfo::exists(Desk::path("LOUD.PNG")) && !QFileInfo::exists(Desk::path("LOUD.PNG.png")));
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// Anything at the completed name stays, even a dangling link.
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QVERIFY(QFile::link(Desk::path("nowhere"), Desk::path("taken.jpg.png")));
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desk.dialogs.seen.clear();
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desk.dialogs.replies = {Desk::path("taken.jpg"), "OK"};
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desk.controller.exportPNG(desk.finished());
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QTRY_VERIFY(desk.done);
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QCOMPARE(desk.dialogs.seen.value(1), QString("alert|2|Couldn’t export PNG|“taken.jpg.png” already exists. Choose another name.|OK|busy 1"));
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QVERIFY(QFileInfo(Desk::path("taken.jpg.png")).isSymLink() && !QFileInfo::exists(Desk::path("nowhere")));
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QVERIFY(!desk.session.isProjectBusy());
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}
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void ProjectExportTests::aCancelledExportWritesNothing()
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{
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Desk desk;
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// Without a window the panel stands alone.
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desk.controller.window = nullptr;
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desk.dialogs.replies = {"<cancel>"};
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desk.controller.exportPNG(desk.finished());
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QTRY_VERIFY(desk.done);
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QCOMPARE(desk.dialogs.seen, QStringList{"panel|Export PNG|save|file|Untitled.png|png|busy 1"});
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QVERIFY(!desk.session.isProjectBusy());
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QCOMPARE(QDir::current().entryList(QDir::Files), QStringList());
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// A JPEG cancelled at its sheet opens no panel.
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desk.controller.window = &desk.window;
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desk.controller.exportJPEG(desk.finished());
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QTRY_VERIFY(desk.sheet());
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QTest::keyClick(desk.sheet(), Qt::Key_Escape);
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QTRY_VERIFY(desk.done);
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QCOMPARE(desk.dialogs.seen.size(), 1);
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QVERIFY(!desk.session.isProjectBusy());
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QVERIFY(!QSettings().contains(JPEGExportSheet::qualityKey));
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// Cancelled at its panel, nothing is written.
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desk.dialogs.replies = {"<cancel>"};
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desk.controller.exportJPEG(desk.finished());
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QTRY_VERIFY(desk.sheet() && desk.sheet()->findChild<QPushButton *>("jpegExport")->isEnabled());
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desk.sheet()->findChild<QPushButton *>("jpegExport")->click();
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QTRY_VERIFY(desk.done);
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QCOMPARE(desk.dialogs.seen.value(1), QString("panel|Export JPEG|save|file|Untitled.jpg|jpeg|busy 1"));
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QCOMPARE(QDir::current().entryList(QDir::Files), QStringList());
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QVERIFY(!desk.session.isProjectBusy());
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}
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void ProjectExportTests::aFailedWriteIsExplained()
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{
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Desk desk;
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QVERIFY(QDir::current().mkdir("locked"));
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QVERIFY(QFile::setPermissions(Desk::path("locked"), QFile::ReadOwner | QFile::ExeOwner));
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desk.dialogs.replies = {Desk::path("locked/shot.png"), "OK"};
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desk.controller.exportPNG(desk.finished());
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QTRY_VERIFY(desk.done);
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QCOMPARE(desk.dialogs.seen.size(), 2);
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QVERIFY(desk.dialogs.seen.value(1).startsWith("alert|2|Couldn’t export PNG|"));
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QVERIFY(desk.dialogs.seen.value(1).endsWith("|OK|busy 1"));
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QVERIFY(!QFileInfo::exists(Desk::path("locked/shot.png")));
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QVERIFY(!desk.session.isProjectBusy());
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QVERIFY(QFile::setPermissions(Desk::path("locked"), QFile::ReadOwner | QFile::WriteOwner | QFile::ExeOwner));
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}
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void ProjectExportTests::aJPEGPassesThroughItsSheet()
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{
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Desk desk;
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QSettings().remove(JPEGExportSheet::qualityKey);
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desk.dialogs.replies = {Desk::path("photo")};
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desk.dialogs.note = panelFilters;
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desk.controller.exportJPEG(desk.finished());
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QVERIFY(desk.session.isProjectBusy());
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// The render runs aside; then the sheet holds the window.
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QTRY_VERIFY(desk.sheet());
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auto *dialog = qobject_cast<QDialog *>(desk.sheet()->parentWidget());
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QVERIFY(dialog && dialog->isVisible() && dialog->windowModality() == Qt::WindowModal);
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QCOMPARE(dialog->windowTitle(), QString("Export JPEG"));
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QCOMPARE(dialog->minimumSize(), dialog->maximumSize());
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auto *exporting = desk.sheet()->findChild<QPushButton *>("jpegExport");
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desk.sheet()->findChild<QSlider *>("jpegQuality")->setValue(50);
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QTRY_VERIFY(exporting->isEnabled());
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exporting->click();
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QTRY_VERIFY(desk.done);
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QCOMPARE(desk.dialogs.seen, QStringList{"panel|Export JPEG|save|file|Untitled.jpg|jpeg|JPEG image (*.jpeg *.jpg *.jpe)"});
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const ExportRaster raster = ImageExporter::render(desk.session.projectSnapshot().value());
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QCOMPARE(contents(Desk::path("photo.jpeg")), ImageExporter::jpeg(raster, {.quality = 0.5}).data);
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QCOMPARE(QSettings().value(JPEGExportSheet::qualityKey).toDouble(), 0.5);
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QVERIFY(!desk.session.isProjectBusy());
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// Every JPEG suffix is one; another gains the preferred.
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for (const QString &name : {QStringLiteral("a.jpg"), QStringLiteral("b.JPE"), QStringLiteral("c.png")}) {
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desk.dialogs.replies = {Desk::path(name)};
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desk.controller.exportJPEG(desk.finished());
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QTRY_VERIFY(desk.sheet() && desk.sheet()->findChild<QPushButton *>("jpegExport")->isEnabled());
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desk.sheet()->findChild<QPushButton *>("jpegExport")->click();
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QTRY_VERIFY(desk.done);
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}
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QVERIFY(QFileInfo::exists(Desk::path("a.jpg")) && QFileInfo::exists(Desk::path("b.JPE")) && QFileInfo::exists(Desk::path("c.png.jpeg")));
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}
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void ProjectExportTests::aJPEGNeedsAWindowAndADocument()
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{
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Desk desk;
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desk.controller.window = nullptr;
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desk.controller.exportJPEG(desk.finished());
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QVERIFY(!desk.session.isProjectBusy());
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QTRY_VERIFY(desk.done);
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EditorSession empty;
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ProjectController idle(empty);
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idle.window = &desk.window;
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bool refused = false;
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idle.exportJPEG([&refused] { refused = true; });
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idle.exportPNG([&refused] { refused = true; });
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QTRY_VERIFY(refused);
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QVERIFY(desk.dialogs.seen.isEmpty() && !empty.isProjectBusy());
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// A busy project starts nothing either.
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desk.controller.window = &desk.window;
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desk.session.setIsProjectBusy(true);
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desk.controller.exportPNG(desk.finished());
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QTRY_VERIFY(desk.done);
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QVERIFY(desk.dialogs.seen.isEmpty());
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desk.session.setIsProjectBusy(false);
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}
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// Enabled with a document while the controller can start.
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void ProjectExportTests::theFileMenuOffersBothExports()
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{
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QTemporaryDir folder;
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Bar bar;
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QVERIFY(!bar.action("exportPNG").isEnabled() && !bar.action("exportJPEG").isEnabled());
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bar.session().createDocument(8, 8);
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QVERIFY(bar.action("exportPNG").isEnabled() && bar.action("exportJPEG").isEnabled());
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bar.session().setIsProjectBusy(true);
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QVERIFY(!bar.action("exportPNG").isEnabled() && !bar.action("exportJPEG").isEnabled());
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bar.session().setIsProjectBusy(false);
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DialogDesk desk;
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desk.replies = {folder.filePath("Shot.png")};
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bar.action("exportPNG").trigger();
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QTRY_VERIFY(QFileInfo::exists(folder.filePath("Shot.png")) && !bar.session().isProjectBusy());
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bar.window.show();
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bar.action("exportJPEG").trigger();
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QTRY_VERIFY(bar.window.findChild<JPEGExportSheet *>());
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QTest::keyClick(bar.window.findChild<JPEGExportSheet *>(), Qt::Key_Escape);
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QTRY_VERIFY(!bar.session().isProjectBusy());
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QCOMPARE(desk.seen.size(), 1);
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}
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QTEST_MAIN(ProjectExportTests)
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#include "ProjectExportTests.moc"
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