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 "UI/NewCanvasSheet.h"
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#include <QBuffer>
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#include <QClipboard>
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#include <QImageReader>
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#include <QImageWriter>
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#include <QtTest>
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// The welcome sheet: sizes, its three ways on, the clipboard.
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namespace {
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struct Sheet {
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EditorSession session;
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QList<QSize> created;
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int opened = 0;
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NewCanvasSheet sheet{session, [this](int width, int height) { created << QSize(width, height); }, [this] { opened += 1; }};
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QLineEdit &width = *sheet.findChild<QLineEdit *>("widthInput");
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QLineEdit &height = *sheet.findChild<QLineEdit *>("heightInput");
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QLabel ¬e = *sheet.findChild<QLabel *>("canvasNote");
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QPushButton &create = *sheet.findChild<QPushButton *>("createCanvas");
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};
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QByteArray encoded(const QImage &image, const char *format, QImageIOHandler::Transformations turned = QImageIOHandler::TransformationNone)
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{
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QByteArray bytes;
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QBuffer buffer(&bytes);
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QImageWriter writer(&buffer, format);
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writer.setTransformation(turned);
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if (!writer.write(image))
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throw std::runtime_error("the fixture could not be encoded");
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return bytes;
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}
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}
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class NewCanvasSheetTests : public QObject {
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Q_OBJECT
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private slots:
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void cleanup();
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void itStartsAtFullHighDefinition();
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void onlyWholeNumbersInRangeMayCreate();
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void returnInEitherFieldCreates();
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void theOtherTwoButtonsOpenAndImport();
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void itGivesWayWhileTheSessionWorks();
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void aCopiedPicturesSizeIsSuggestedOnce();
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void theFirstTabSkipsTheClipboardOnce();
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void clipboardSizesComeFromHeadersAlone();
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};
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void NewCanvasSheetTests::cleanup()
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{
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QApplication::clipboard()->clear();
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}
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void NewCanvasSheetTests::itStartsAtFullHighDefinition()
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{
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Sheet fixture;
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fixture.sheet.show();
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QVERIFY(QTest::qWaitForWindowExposed(&fixture.sheet));
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QCOMPARE(fixture.width.text(), QString("1920"));
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QCOMPARE(fixture.height.text(), QString("1080"));
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QCOMPARE(fixture.note.text(), QString("Transparent canvas · sRGB"));
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QCOMPARE(fixture.note.foregroundRole(), QPalette::PlaceholderText);
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QVERIFY(fixture.create.isEnabled() && fixture.create.isDefault() && fixture.width.hasFocus());
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QCOMPARE(fixture.sheet.width(), 500);
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QTest::mouseClick(&fixture.create, Qt::LeftButton);
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QCOMPARE(fixture.created, (QList<QSize>{QSize(1920, 1080)}));
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}
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void NewCanvasSheetTests::onlyWholeNumbersInRangeMayCreate()
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{
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Sheet fixture;
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// Shown and active, so that Return reaches the sheet.
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fixture.sheet.show();
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fixture.sheet.activateWindow();
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QVERIFY(QTest::qWaitForWindowActive(&fixture.sheet));
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const auto valid = [&](const QString &width, const QString &height) {
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fixture.width.setText(width);
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fixture.height.setText(height);
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return fixture.create.isEnabled();
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};
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QVERIFY(valid("1", "30000"));
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QVERIFY(valid("30000", "1"));
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QVERIFY(valid(" 640 ", "480"));
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// Either field alone refuses, by button, Return and Enter.
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const auto refused = [&] {
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const bool warned = fixture.note.text() == "Enter whole numbers from 1 to 30,000 pixels." && fixture.note.foregroundRole() == QPalette::BrightText;
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fixture.create.click();
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QTest::keyClick(&fixture.width, Qt::Key_Return);
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QTest::keyClick(&fixture.height, Qt::Key_Enter);
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fixture.sheet.findChild<QPushButton *>("openProject")->setFocus();
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QTest::keyClick(&fixture.sheet, Qt::Key_Return);
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return warned && fixture.created.isEmpty();
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};
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for (const QString &bad : {QString("0"), QString("30001"), QString(""), QString("12.5"), QString("-4"), QString("1e3"), QString("wide")}) {
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QVERIFY2(!valid(bad, "480") && refused(), qPrintable(bad));
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QVERIFY2(!valid("640", bad) && refused(), qPrintable(bad));
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}
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QVERIFY(fixture.created.isEmpty() && fixture.opened == 0);
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QVERIFY(valid("640", "480"));
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QCOMPARE(fixture.note.text(), QString("Transparent canvas · sRGB"));
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}
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void NewCanvasSheetTests::returnInEitherFieldCreates()
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{
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Sheet fixture;
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fixture.sheet.show();
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QVERIFY(QTest::qWaitForWindowExposed(&fixture.sheet));
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fixture.width.setText("300");
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fixture.height.setText(" 200");
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QTest::keyClick(&fixture.width, Qt::Key_Return);
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QTest::keyClick(&fixture.height, Qt::Key_Return);
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QCOMPARE(fixture.created, (QList<QSize>{QSize(300, 200), QSize(300, 200)}));
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// Return with a button in focus creates as well.
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fixture.sheet.activateWindow();
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QVERIFY(QTest::qWaitForWindowActive(&fixture.sheet));
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fixture.sheet.findChild<QPushButton *>("openProject")->setFocus();
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QTest::keyClick(&fixture.sheet, Qt::Key_Return);
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fixture.sheet.findChild<QPushButton *>("importImage")->setFocus();
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QTest::keyClick(&fixture.sheet, Qt::Key_Enter);
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QCOMPARE(fixture.created.size(), 4);
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QCOMPARE(fixture.opened, 0);
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QVERIFY(!fixture.session.showsImporter());
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}
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void NewCanvasSheetTests::theOtherTwoButtonsOpenAndImport()
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{
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Sheet fixture;
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QSignalSpy changes(&fixture.session, &EditorSession::changed);
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fixture.sheet.findChild<QPushButton *>("openProject")->click();
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QCOMPARE(fixture.opened, 1);
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QCOMPARE(changes.count(), 0);
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QVERIFY(!fixture.session.showsImporter());
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fixture.sheet.findChild<QPushButton *>("importImage")->click();
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QVERIFY(fixture.session.showsImporter());
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QVERIFY(fixture.created.isEmpty() && fixture.opened == 1);
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}
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void NewCanvasSheetTests::itGivesWayWhileTheSessionWorks()
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{
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Sheet fixture;
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QVERIFY(fixture.sheet.isEnabled());
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fixture.session.setIsImporting(true);
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QVERIFY(!fixture.sheet.isEnabled());
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fixture.session.setIsImporting(false);
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QVERIFY(fixture.sheet.isEnabled());
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// Busy dims only once it shows, a quarter second in.
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fixture.session.setIsProjectBusy(true);
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QVERIFY(fixture.sheet.isEnabled());
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QTRY_VERIFY(!fixture.sheet.isEnabled());
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fixture.session.setIsProjectBusy(false);
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QVERIFY(fixture.sheet.isEnabled());
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}
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void NewCanvasSheetTests::aCopiedPicturesSizeIsSuggestedOnce()
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{
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auto *copied = new QMimeData;
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copied->setData("image/png", encoded(QImage(640, 360, QImage::Format_RGBA8888), "png"));
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QApplication::clipboard()->setMimeData(copied);
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Sheet fixture;
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QCOMPARE(fixture.width.text(), QString("1920"));
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fixture.sheet.show();
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QVERIFY(QTest::qWaitForWindowExposed(&fixture.sheet));
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QCOMPARE(fixture.width.text(), QString("640"));
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QCOMPARE(fixture.height.text(), QString("360"));
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// Shown again, it keeps what the user has typed since.
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fixture.width.setText("111");
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fixture.height.setFocus();
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fixture.sheet.hide();
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fixture.sheet.show();
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QCOMPARE(fixture.width.text(), QString("111"));
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// Shown again, the width is the field to type in.
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QCOMPARE(fixture.sheet.focusWidget(), &fixture.width);
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}
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void NewCanvasSheetTests::theFirstTabSkipsTheClipboardOnce()
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{
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auto *copied = new QMimeData;
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copied->setData("image/png", encoded(QImage(640, 360, QImage::Format_RGBA8888), "png"));
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QApplication::clipboard()->setMimeData(copied);
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Sheet first;
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first.session.skipsInitialClipboardCanvasSize = true;
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first.sheet.show();
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QVERIFY(QTest::qWaitForWindowExposed(&first.sheet));
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QCOMPARE(first.width.text(), QString("1920"));
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QVERIFY(!first.session.skipsInitialClipboardCanvasSize);
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// The session's next sheet reads the clipboard again.
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NewCanvasSheet later(first.session, [](int, int) {}, [] {});
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later.show();
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QVERIFY(QTest::qWaitForWindowExposed(&later));
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QCOMPARE(later.findChild<QLineEdit *>("widthInput")->text(), QString("640"));
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}
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void NewCanvasSheetTests::clipboardSizesComeFromHeadersAlone()
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{
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QVERIFY(!NewCanvasSheet::clipboardDimensions(nullptr).has_value());
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QMimeData clipboard;
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QVERIFY(!NewCanvasSheet::clipboardDimensions(&clipboard).has_value());
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clipboard.setText("640 x 360");
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QVERIFY(!NewCanvasSheet::clipboardDimensions(&clipboard).has_value());
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// A tall TIFF; a PNG beside it comes first.
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clipboard.setData("image/tiff", encoded(QImage(30, 50, QImage::Format_RGBA8888), "tiff"));
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QCOMPARE(NewCanvasSheet::clipboardDimensions(&clipboard), std::optional(QSize(30, 50)));
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clipboard.setData("image/png", encoded(QImage(70, 20, QImage::Format_RGBA8888), "png"));
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QCOMPARE(NewCanvasSheet::clipboardDimensions(&clipboard), std::optional(QSize(70, 20)));
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// No pixel is decoded: past Qt's limit it still counts.
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const int limit = QImageReader::allocationLimit();
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QImageReader::setAllocationLimit(1);
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QMimeData large;
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large.setData("image/png", encoded(QImage(2000, 1000, QImage::Format_RGBA8888), "png"));
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const std::optional<QSize> measured = NewCanvasSheet::clipboardDimensions(&large);
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QImageReader::setAllocationLimit(limit);
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QCOMPARE(measured, std::optional(QSize(2000, 1000)));
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// Too large for a canvas: the next type is tried.
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QMimeData vast;
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vast.setData("image/png", encoded(QImage(30001, 1, QImage::Format_Grayscale8), "png"));
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QVERIFY(!NewCanvasSheet::clipboardDimensions(&vast).has_value());
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vast.setData("image/tiff", encoded(QImage(30, 50, QImage::Format_RGBA8888), "tiff"));
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QCOMPARE(NewCanvasSheet::clipboardDimensions(&vast), std::optional(QSize(30, 50)));
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QMimeData broken;
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broken.setData("image/png", "not a picture");
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QVERIFY(!NewCanvasSheet::clipboardDimensions(&broken).has_value());
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// Too tall as well as too wide is refused.
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QMimeData tall;
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tall.setData("image/png", encoded(QImage(1, 30001, QImage::Format_Grayscale8), "png"));
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QVERIFY(!NewCanvasSheet::clipboardDimensions(&tall).has_value());
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// A TIFF stored on its side swaps its sides.
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QMimeData turned;
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turned.setData("image/tiff", encoded(QImage(30, 50, QImage::Format_RGBA8888), "tiff", QImageIOHandler::TransformationRotate90));
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QCOMPARE(NewCanvasSheet::clipboardDimensions(&turned), std::optional(QSize(50, 30)));
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}
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QTEST_MAIN(NewCanvasSheetTests)
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#include "NewCanvasSheetTests.moc"
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