ZacharyZhang-NY/OmaPhoto
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OmaPhoto/tests/InlineTextDrawTests.cpp
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#include "MenuFixtures.h"
#include "InlineTextDrawFixtures.h"
#include <QClipboard>
#include <QElapsedTimer>
#include <QAction>
#include <QLineEdit>
#include <QPushButton>
#include <QStyleHints>
// The editor on screen: its text, frame, caret, selection, focus.
class InlineTextDrawTests : public QObject {
Q_OBJECT
private slots:
void theEditorShowsTheDraftInsteadOfItsLayer();
void theFrameAndHandlesSitOnTheBox();
void aTurnedFlippedLayerIsEditedInPlace();
void theCaretShowsWhileTheCanvasHasFocus();
void aSelectionShowsBehindItsText();
void textPastTheBoxShowsAPlus();
void aFreshDraftTakesTheKeysButSparesAField();
void theDraftTakesItsKeysAheadOfShortcuts();
void theEditMenuReachesOpenText();
void editsRepaintTheEditor();
void openingTextRepaintsItsWholeLayer();
};
void InlineTextDrawTests::theEditorShowsTheDraftInsteadOfItsLayer()
{
DrawnText shown;
shown.text(QPointF(20, 30), QStringLiteral("Hide"));
QVERIFY(where(shown.grab(), reddish).isValid());
shown.session.editActiveText();
shown.session.changeTextStyle([](LayerTextStyle &style) {
style.content = QStringLiteral("Hi");
style.red = 0;
style.green = 1;
});
// The layer's red is gone; the draft's green shows.
const QImage editing = shown.grab();
QVERIFY(!where(editing, reddish).isValid());
QVERIFY(where(editing, greenish).isValid());
shown.session.cancelText();
QVERIFY(where(shown.grab(), reddish).isValid());
}
void InlineTextDrawTests::theFrameAndHandlesSitOnTheBox()
{
DrawnText shown;
shown.session.beginText(QRectF(100, 80, 200, 120));
const QImage image = shown.grab();
const QColor accent = shown.canvas->palette().color(QPalette::Highlight);
const QSizeF size = shown.editor().logicalSize();
for (const QPointF &unit : LayerTransform::handles)
QCOMPARE(image.pixelColor(shown.onScreen(QPointF(unit.x() * size.width(), unit.y() * size.height()))), QColor(Qt::white));
// The frame: an accent line, a sixth of a handle.
const QColor frame = image.pixelColor(shown.onScreen(QPointF(size.width() / 4, 0.25)));
QVERIFY2(std::abs(frame.red() - accent.red()) < 40 && std::abs(frame.blue() - accent.blue()) < 40, qPrintable(frame.name()));
QVERIFY(image.pixelColor(shown.onScreen(QPointF(size.width() / 4, 4))) != frame);
// No plus without overflow.
QVERIFY(image.pixelColor(shown.onScreen(QPointF(size.width(), size.height()))) == QColor(Qt::white));
// Tight leading lifts the H into the frame, still over.
shown.session.changeTextStyle([](LayerTextStyle &style) {
style.content = QStringLiteral("H");
style.leading = 30;
});
QCOMPARE(qAlpha(EditorSession::textImage(shown.session.textDraft().value().style).pixel(24, 0)), 255);
const QColor over = shown.grab().pixelColor(shown.onScreen(QPointF(24, 0.25)));
QVERIFY2(!reddish(over) && std::abs(over.red() - accent.red()) < 40 && std::abs(over.blue() - accent.blue()) < 40, qPrintable(over.name()));
QVERIFY(where(shown.grab(), reddish).isValid());
}
void InlineTextDrawTests::aTurnedFlippedLayerIsEditedInPlace()
{
DrawnText shown;
const QUuid id = shown.text(QPointF(150, 100), QStringLiteral("Turn"));
rewrite(shown.session, [&](ProjectSnapshot &snapshot) {
LayerTransform &transform = record(snapshot, id).transform;
transform.rotation = 90;
transform.flipX = true;
});
const QRect drawn = where(shown.grab(), reddish);
// A field keeps the keys, so no caret draws.
auto *field = new QLineEdit(&shown.window);
field->show();
field->setFocus();
QTRY_VERIFY(field->hasFocus());
shown.session.editActiveText();
QTest::qWait(20);
QVERIFY(!shown.editor().caretShown());
const QRect edited = where(shown.grab(), reddish);
QVERIFY2(std::abs(edited.left() - drawn.left()) <= 2 && std::abs(edited.top() - drawn.top()) <= 2 && std::abs(edited.right() - drawn.right()) <= 2
&& std::abs(edited.bottom() - drawn.bottom()) <= 2,
qPrintable(QString("%1,%2 %3x%4 against %5,%6 %7x%8")
.arg(edited.x()).arg(edited.y()).arg(edited.width()).arg(edited.height())
.arg(drawn.x()).arg(drawn.y()).arg(drawn.width()).arg(drawn.height())));
// Turned, the text runs down the screen.
QVERIFY(edited.height() > edited.width());
}
void InlineTextDrawTests::theCaretShowsWhileTheCanvasHasFocus()
{
DrawnText shown;
auto *field = new QLineEdit(&shown.window);
field->setGeometry(0, 0, 10, 10);
field->show();
shown.canvas->setFocus();
QTRY_VERIFY(shown.canvas->hasFocus());
beginTextAt(shown.session, QPointF(20, 30));
QTest::keyClicks(shown.canvas, QStringLiteral("ab"));
const QRectF caret = shown.editor().textTransform().mapRect(
QRectF(QPointF(LayerTextStyle::padding, LayerTextStyle::padding), QSizeF(1, shown.session.textDraft().value().style.lineHeight()))
.translated(QFontMetricsF(TextLayout::font(shown.session.textDraft().value().style)).horizontalAdvance(QStringLiteral("ab")), 0));
const QPoint middle = caret.center().toPoint();
QVERIFY(shown.editor().caretShown());
QVERIFY2(reddish(shown.grab().pixelColor(middle)), qPrintable(shown.grab().pixelColor(middle).name()));
// Input methods see the caret where it draws.
const QRectF asked = static_cast<const QWidget *>(shown.canvas)->inputMethodQuery(Qt::ImCursorRectangle).toRectF();
QVERIFY(asked.adjusted(-1, -1, 1, 1).contains(middle));
// It blinks at half the system's flash time, repainting.
QTest::keyClick(shown.canvas, Qt::Key_End);
QElapsedTimer clock;
clock.start();
// The key's own repaint lands first; then only the blink's.
QTest::qWait(50);
PaintSpy spy(*shown.canvas);
QTRY_VERIFY(!shown.editor().caretShown());
QVERIFY(clock.elapsed() >= QGuiApplication::styleHints()->cursorFlashTime() / 2 - 50);
QTRY_VERIFY(spy.painted.contains(middle));
QTRY_VERIFY(shown.editor().caretShown());
// Without the keys it stops; with them, shows at once.
const QTimer *blink = shown.canvas->findChild<QTimer *>(QStringLiteral("caretBlink"));
QVERIFY(blink && blink->isActive());
field->setFocus();
QVERIFY(!shown.editor().caretShown() && !blink->isActive());
QVERIFY(!reddish(shown.grab().pixelColor(middle)));
shown.canvas->setFocus();
QVERIFY(shown.editor().caretShown() && blink->isActive());
// A move or an edit shows the caret at once.
QTRY_VERIFY(!shown.editor().caretShown());
QTest::keyClick(shown.canvas, Qt::Key_Left);
QVERIFY(shown.editor().caretShown());
QTRY_VERIFY(!shown.editor().caretShown());
QTest::keyClicks(shown.canvas, QStringLiteral("c"));
QVERIFY(shown.editor().caretShown());
// The blink ends with its editor.
shown.session.cancelText();
QVERIFY(!shown.canvas->findChild<QTimer *>(QStringLiteral("caretBlink")));
}
void InlineTextDrawTests::aSelectionShowsBehindItsText()
{
DrawnText shown;
shown.canvas->setFocus();
QTRY_VERIFY(shown.canvas->hasFocus());
beginTextAt(shown.session, QPointF(20, 30));
QTest::keyClicks(shown.canvas, QStringLiteral("iiii"));
const QImage plain = shown.grab();
QTest::keyClick(shown.canvas, Qt::Key_A, Qt::ControlModifier);
const auto mixed = [&](QPoint at, QColor highlight) { return highlightedOver(plain.pixelColor(at), shown.grab().pixelColor(at), highlight); };
const auto highlighted = [&](QPoint at) { return mixed(at, shown.canvas->palette().color(QPalette::Active, QPalette::Highlight)); };
// Above the letters, the line's height is highlighted.
const QPoint above = shown.editor().textTransform().map(QPointF(LayerTextStyle::padding + 3, LayerTextStyle::padding + 3)).toPoint();
QVERIFY(highlighted(above));
const double line = shown.session.textDraft().value().style.lineHeight();
QVERIFY(highlighted(shown.editor().textTransform().map(QPointF(LayerTextStyle::padding + 3, LayerTextStyle::padding + line - 3)).toPoint()));
// To the last selected letter's edge.
const double selected = QFontMetricsF(TextLayout::font(shown.session.textDraft().value().style)).horizontalAdvance(QStringLiteral("iiii"));
QVERIFY(highlighted(shown.editor().textTransform().map(QPointF(LayerTextStyle::padding + selected - 3, LayerTextStyle::padding + 3)).toPoint()));
// No caret while something is selected.
const QPointF mapped = shown.editor().textTransform().map(
QPointF(LayerTextStyle::padding + QFontMetricsF(TextLayout::font(shown.session.textDraft().value().style)).horizontalAdvance(QStringLiteral("iiii")) + 0.25,
LayerTextStyle::padding + 40));
const QPoint end(int(std::floor(mapped.x())), int(std::floor(mapped.y())));
QVERIFY(!reddish(shown.grab().pixelColor(end)));
QTest::keyClick(shown.canvas, Qt::Key_End);
QVERIFY(reddish(shown.grab().pixelColor(end)));
QCOMPARE(shown.grab().pixelColor(above), plain.pixelColor(above));
// Unfocused, a selection shows in the inactive colour.
QPalette palette = shown.canvas->palette();
palette.setColor(QPalette::Inactive, QPalette::Highlight, QColor(40, 200, 40));
shown.canvas->setPalette(palette);
QTest::keyClick(shown.canvas, Qt::Key_A, Qt::ControlModifier);
auto *field = new QLineEdit(&shown.window);
field->show();
field->setFocus();
QTRY_VERIFY(!shown.canvas->hasFocus());
QVERIFY(mixed(above, QColor(40, 200, 40)));
}
void InlineTextDrawTests::textPastTheBoxShowsAPlus()
{
DrawnText shown;
shown.session.beginText(QRectF(100, 80, 120, 60));
const QPointF corner(120, 60);
QCOMPARE(shown.grab().pixelColor(shown.onScreen(corner)), QColor(Qt::white));
QTest::keyClicks(shown.canvas, QStringLiteral("more words than the box holds"));
QVERIFY(shown.grab().pixelColor(shown.onScreen(corner)).lightness() < 100);
}
void InlineTextDrawTests::aFreshDraftTakesTheKeysButSparesAField()
{
DrawnText shown;
auto *field = new QLineEdit(&shown.window);
auto *button = new QPushButton(&shown.window);
field->setGeometry(0, 0, 10, 10);
button->setGeometry(20, 0, 10, 10);
field->show();
button->show();
field->setFocus();
QTRY_VERIFY(field->hasFocus());
beginTextAt(shown.session, QPointF(20, 30));
QTest::qWait(50);
QVERIFY(field->hasFocus());
shown.session.cancelText();
button->setFocus();
QTRY_VERIFY(button->hasFocus());
beginTextAt(shown.session, QPointF(20, 30));
QTRY_VERIFY(shown.canvas->hasFocus());
// A focus request leaves open text's keys alone.
button->setFocus();
QTRY_VERIFY(button->hasFocus());
shown.canvas->consumeFocusRequest(7);
QTest::qWait(50);
QVERIFY(button->hasFocus());
shown.session.cancelText();
shown.canvas->consumeFocusRequest(8);
QTRY_VERIFY(shown.canvas->hasFocus());
}
void InlineTextDrawTests::theDraftTakesItsKeysAheadOfShortcuts()
{
DrawnText shown;
auto *selectAll = new QAction(&shown.window);
selectAll->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_A));
shown.window.addAction(selectAll);
int triggered = 0;
QObject::connect(selectAll, &QAction::triggered, [&] { ++triggered; });
shown.canvas->setFocus();
QTRY_VERIFY(shown.canvas->hasFocus());
QTest::keyClick(shown.canvas, Qt::Key_A, Qt::ControlModifier);
QCOMPARE(triggered, 1);
beginTextAt(shown.session, QPointF(20, 30));
QTest::keyClicks(shown.canvas, QStringLiteral("all"));
QTest::keyClick(shown.canvas, Qt::Key_A, Qt::ControlModifier);
QCOMPARE(triggered, 1);
QCOMPARE(shown.editor().anchor(), 0);
QCOMPARE(shown.editor().caretPosition(), 3);
// Shift-Tab keeps the keys where the text is.
auto *next = new QPushButton(&shown.window);
next->show();
QTest::keyClick(shown.canvas, Qt::Key_Backtab, Qt::ShiftModifier);
QVERIFY(shown.canvas->hasFocus());
QCOMPARE(shown.session.textDraft().value().style.content, QString("all"));
// So do its other keys, and Backspace over the fills.
int stolen = 0;
const auto steal = [&](const QList<QKeySequence> &keys) {
auto *action = new QAction(&shown.window);
action->setShortcuts(keys);
shown.window.addAction(action);
QObject::connect(action, &QAction::triggered, [&] { ++stolen; });
};
for (const QKeySequence::StandardKey key : {QKeySequence::Undo, QKeySequence::Redo, QKeySequence::Copy, QKeySequence::Cut, QKeySequence::Paste})
steal(QKeySequence::keyBindings(key));
steal({QKeySequence(Qt::ALT | Qt::Key_Backspace), QKeySequence(Qt::CTRL | Qt::Key_Backspace), QKeySequence(Qt::SHIFT | Qt::Key_Backspace)});
QTest::keyClick(shown.canvas, Qt::Key_End);
QTest::keyClick(shown.canvas, Qt::Key_Left, Qt::ShiftModifier);
QTest::keyClick(shown.canvas, Qt::Key_C, Qt::ControlModifier);
QTest::keyClick(shown.canvas, Qt::Key_X, Qt::ControlModifier);
QTest::keyClick(shown.canvas, Qt::Key_V, Qt::ControlModifier);
QTest::keyClick(shown.canvas, Qt::Key_Z, Qt::ControlModifier);
QTest::keyClick(shown.canvas, Qt::Key_Z, Qt::ControlModifier | Qt::ShiftModifier);
QCOMPARE(shown.session.textDraft().value().style.content, QString("all"));
QTest::keyClick(shown.canvas, Qt::Key_Backspace, Qt::ShiftModifier);
QTest::keyClick(shown.canvas, Qt::Key_Backspace, Qt::AltModifier);
QTest::keyClick(shown.canvas, Qt::Key_Backspace, Qt::ControlModifier);
QCOMPARE(shown.session.textDraft().value().style.content, QString());
QCOMPARE(stolen, 0);
}
void InlineTextDrawTests::theEditMenuReachesOpenText()
{
Bar bar;
bar.window.show();
QVERIFY(QTest::qWaitForWindowActive(&bar.window));
EditorSession &session = bar.session();
session.createDocument(400, 300, true);
session.selectTool(NavigationTool::type);
beginTextAt(session, QPointF(20, 30));
auto *canvas = bar.window.findChild<CanvasView *>();
QTRY_VERIFY(canvas->hasFocus());
QTest::keyClicks(canvas, QStringLiteral("menu"));
const auto content = [&] { return session.textDraft().value().style.content; };
// Swift's text branch: bare entries, enabled, the text view's.
QCOMPARE(bar.action("undo").text(), QString("Undo"));
QVERIFY(bar.action("undo").isEnabled() && bar.action("redo").isEnabled());
bar.action("undo").trigger();
QCOMPARE(content(), QString());
bar.action("redo").trigger();
QCOMPARE(content(), QString("menu"));
bar.action("selectAll").trigger();
QCOMPARE(canvas->inlineTextEditor()->anchor(), 0);
QVERIFY(!session.selection());
bar.action("copy").trigger();
QCOMPARE(QGuiApplication::clipboard()->text(), QString("menu"));
bar.action("cut").trigger();
QCOMPARE(content(), QString());
bar.action("paste").trigger();
bar.action("paste").trigger();
QCOMPARE(content(), QString("menumenu"));
// Closed, the entries carry the step's name again.
QVERIFY(session.finishText());
QCOMPARE(bar.action("undo").text(), QString("Undo New Text Layer"));
}
void InlineTextDrawTests::editsRepaintTheEditor()
{
DrawnText shown;
// A field keeps the keys: no blink repaints the edits.
auto *field = new QLineEdit(&shown.window);
field->show();
field->setFocus();
QTRY_VERIFY(field->hasFocus());
beginTextAt(shown.session, QPointF(20, 30));
QTest::qWait(50);
PaintSpy spy(*shown.canvas);
QTest::keyClicks(shown.canvas, QStringLiteral("Wide words"));
QTRY_VERIFY(spy.painted.contains(shown.editor().drawnRect().toAlignedRect() & shown.canvas->rect()));
// Closing new text repaints where it stood.
const QRect stood = shown.editor().drawnRect().toAlignedRect() & shown.canvas->rect();
spy.painted = QRect();
shown.session.cancelText();
QTRY_VERIFY(spy.painted.contains(stood));
// A paste grows the box past its old margins.
beginTextAt(shown.session, QPointF(20, 30));
QTest::qWait(50);
QVERIFY(!shown.canvas->findChild<QTimer *>(QStringLiteral("caretBlink"))->isActive());
spy.painted = QRect();
QGuiApplication::clipboard()->setText(QStringLiteral("iiiiiiiiiiiiiiii"));
QTest::keyClick(shown.canvas, Qt::Key_V, Qt::ControlModifier);
QTRY_VERIFY(spy.painted.contains(shown.editor().drawnRect().toAlignedRect() & shown.canvas->rect()));
shown.session.cancelText();
// A layer whose text shrank shows whole again when left.
const QUuid id = shown.text(QPointF(20, 30), QStringLiteral("Hi you all"));
const QPoint right = layerWith(shown.session, id).transform.point(QPointF(0.95, 0.5)).toPoint();
const auto shrink = [&] {
shown.session.editActiveText();
QTest::keyClick(shown.canvas, Qt::Key_End);
QTest::keyClick(shown.canvas, Qt::Key_Backspace, Qt::AltModifier);
QTest::keyClick(shown.canvas, Qt::Key_Backspace, Qt::AltModifier);
QVERIFY(!shown.editor().drawnRect().contains(right));
QTest::qWait(50);
spy.painted = QRect();
};
shrink();
shown.session.cancelText();
QTRY_VERIFY(spy.painted.contains(right));
// So does one whose draft another replaces.
shrink();
TextDraft other = shown.session.textDraft().value();
other.id = QUuid::createUuid();
other.layerID = std::nullopt;
other.transform = std::nullopt;
other.origin = QPointF(20, 200);
shown.session.setTextDraft(other);
QTRY_VERIFY(spy.painted.contains(right));
// The caret's line after a final newline falls far below.
shown.session.cancelText();
beginTextAt(shown.session, QPointF(20, 20));
shown.session.changeTextStyle([](LayerTextStyle &style) {
style.fontSize = 24;
style.leading = 120;
});
QTest::keyClicks(shown.canvas, QStringLiteral("A"));
QTest::qWait(50);
spy.painted = QRect();
QTest::keyClick(shown.canvas, Qt::Key_Return);
const QPoint below = shown.editor().textTransform().map(QPointF(LayerTextStyle::padding, LayerTextStyle::padding + 180)).toPoint();
QVERIFY(below.y() > shown.editor().textTransform().map(QPointF(0, shown.editor().logicalSize().height())).y() + 40);
QTRY_VERIFY(spy.painted.contains(below));
}
void InlineTextDrawTests::openingTextRepaintsItsWholeLayer()
{
DrawnText shown;
beginTextAt(shown.session, QPointF(20, 20));
shown.session.changeTextStyle([](LayerTextStyle &style) { style.fontSize = 24; });
QTest::keyClicks(shown.canvas, QStringLiteral("Tall"));
QVERIFY(shown.session.finishText());
const QUuid id = shown.session.activeLayerID().value();
const QSize pixels = layerWith(shown.session, id).asset.value().size();
rewrite(shown.session, [&](ProjectSnapshot &snapshot) {
record(snapshot, id).transform = LayerTransform{.origin = {20, 20}, .size = QSizeF(pixels.width(), pixels.height() * 5)};
});
// Point text shows at the width's scale; the rest goes.
const QPoint low = layerWith(shown.session, id).transform.point(QPointF(0.5, 0.9)).toPoint();
QTest::qWait(50);
PaintSpy spy(*shown.canvas);
shown.session.editActiveText();
QVERIFY(!shown.editor().drawnRect().contains(low));
QTRY_VERIFY(spy.painted.contains(low));
}
QTEST_MAIN(InlineTextDrawTests)
#include "InlineTextDrawTests.moc"
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