From 47c2390d1813bd1c705a5da9f784b3a047b87b8e Mon Sep 17 00:00:00 2001 From: Debian Qt/KDE Maintainers Date: Sat, 14 May 2022 17:41:00 +0800 Subject: [PATCH] fix placement of placeholder text in QLineEdits with action icons After dc794f7622bc00f7ca50fab65d6965695d6d2972, side widgets only got space if they were not fading out, but the logic was not correctly accounting for side widgets that never fade, such as buttons added via QLineEdit::addAction. Fix this to give visible widgets space, unless they are fading out. That was the intent of the original change. Rename the variable to make its purpose clearer, and reset it at the end of the fade-out animation. Add a much-needed test that relies on private APIs to verify that the effective margins are calculated correctly. Origin: upstream, https://code.qt.io/cgit/qt/qtbase.git/commit/?id=0e6b31019f01c72e Last-Update: 2021-08-10 Gbp-Pq: Name fix-placement-of-placeholder-text-in-QLineEdits-with-action-icons.diff --- src/widgets/widgets/qlineedit_p.cpp | 5 +- src/widgets/widgets/qlineedit_p.h | 9 ++- .../widgets/qlineedit/tst_qlineedit.cpp | 66 +++++++++++++++++++ 3 files changed, 75 insertions(+), 5 deletions(-) diff --git a/src/widgets/widgets/qlineedit_p.cpp b/src/widgets/widgets/qlineedit_p.cpp index 3eb3abca..bad36fd2 100644 --- a/src/widgets/widgets/qlineedit_p.cpp +++ b/src/widgets/widgets/qlineedit_p.cpp @@ -407,8 +407,9 @@ void QLineEditIconButton::setHideWithText(bool hide) void QLineEditIconButton::onAnimationFinished() { - if (shouldHideWithText() && isVisible() && !m_wasHidden) { + if (shouldHideWithText() && isVisible() && m_fadingOut) { hide(); + m_fadingOut = false; // Invalidate previous geometry to take into account new size of side widgets if (auto le = lineEditPrivate()) @@ -418,7 +419,7 @@ void QLineEditIconButton::onAnimationFinished() void QLineEditIconButton::animateShow(bool visible) { - m_wasHidden = visible; + m_fadingOut = !visible; if (shouldHideWithText() && !isVisible()) { show(); diff --git a/src/widgets/widgets/qlineedit_p.h b/src/widgets/widgets/qlineedit_p.h index bbe3e8ea..f55210fc 100644 --- a/src/widgets/widgets/qlineedit_p.h +++ b/src/widgets/widgets/qlineedit_p.h @@ -95,8 +95,11 @@ public: bool shouldHideWithText() const; void setHideWithText(bool hide); - // m_wasHidden is true unless the button is fading out - bool needsSpace() const { return m_wasHidden; } + bool needsSpace() const { + if (m_fadingOut) + return false; + return isVisibleTo(parentWidget()); + } #endif protected: @@ -120,7 +123,7 @@ private: #if QT_CONFIG(animation) bool m_hideWithText = false; - bool m_wasHidden = false; + bool m_fadingOut = false; #endif }; diff --git a/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp b/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp index 6408df3f..7c2203de 100644 --- a/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp +++ b/tests/auto/widgets/widgets/qlineedit/tst_qlineedit.cpp @@ -292,6 +292,7 @@ private slots: void clearButtonVisibleAfterSettingText_QTBUG_45518(); void sideWidgets(); void sideWidgetsActionEvents(); + void sideWidgetsEffectiveMargins(); void shouldShowPlaceholderText_data(); void shouldShowPlaceholderText(); @@ -4646,6 +4647,71 @@ void tst_QLineEdit::sideWidgetsActionEvents() QCOMPARE(toolButton2->x(), toolButton1X); } +/*! + Verify that side widgets are positioned correctly and result in + correct effective text margins. +*/ +void tst_QLineEdit::sideWidgetsEffectiveMargins() +{ +#ifndef QT_BUILD_INTERNAL + QSKIP("This test requires a developer build."); +#else + QLineEdit edit; + edit.setPlaceholderText("placeholder"); + edit.setClearButtonEnabled(true); + edit.show(); + QLineEditPrivate *priv = QLineEditPrivate::get(&edit); + const auto sideWidgetParameters = priv->sideWidgetParameters(); + const int sideWidgetWidth = sideWidgetParameters.widgetWidth + sideWidgetParameters.margin; + QVERIFY(QTest::qWaitForWindowExposed(&edit)); + + QCOMPARE(priv->effectiveTextMargins().left(), 0); + QCOMPARE(priv->effectiveTextMargins().right(), 0); + + edit.setText("Left to right"); // clear button fades in on the right + QCOMPARE(priv->effectiveTextMargins().left(), 0); + QCOMPARE(priv->effectiveTextMargins().right(), sideWidgetWidth); + edit.clear(); + QCOMPARE(priv->effectiveTextMargins().left(), 0); + QCOMPARE(priv->effectiveTextMargins().right(), 0); + + edit.setLayoutDirection(Qt::RightToLeft); + edit.setText("ئۇيغۇر تىلى"); // clear button fades in on the left + QCOMPARE(priv->effectiveTextMargins().left(), sideWidgetWidth); + QCOMPARE(priv->effectiveTextMargins().right(), 0); + edit.clear(); + QCOMPARE(priv->effectiveTextMargins().left(), 0); + QCOMPARE(priv->effectiveTextMargins().right(), 0); + + edit.setLayoutDirection(Qt::LeftToRight); + + const QIcon leftIcon = edit.style()->standardIcon(QStyle::SP_FileIcon); + const QIcon rightIcon = edit.style()->standardIcon(QStyle::SP_DirIcon); + edit.addAction(leftIcon, QLineEdit::ActionPosition::LeadingPosition); + QCOMPARE(priv->effectiveTextMargins().left(), sideWidgetWidth); + QCOMPARE(priv->effectiveTextMargins().right(), 0); + + edit.addAction(rightIcon, QLineEdit::ActionPosition::TrailingPosition); + QCOMPARE(priv->effectiveTextMargins().left(), sideWidgetWidth); + QCOMPARE(priv->effectiveTextMargins().right(), sideWidgetWidth); + + edit.setText("Left to right"); // clear button on the right + QCOMPARE(priv->effectiveTextMargins().left(), sideWidgetWidth); + QCOMPARE(priv->effectiveTextMargins().right(), 2 * sideWidgetWidth); + edit.clear(); + QCOMPARE(priv->effectiveTextMargins().left(), sideWidgetWidth); + QCOMPARE(priv->effectiveTextMargins().right(), sideWidgetWidth); + + edit.setLayoutDirection(Qt::RightToLeft); + edit.setText("ئۇيغۇر تىلى"); // clear button fades in on the left + QCOMPARE(priv->effectiveTextMargins().left(), 2 * sideWidgetWidth); + QCOMPARE(priv->effectiveTextMargins().right(), sideWidgetWidth); + edit.clear(); + QCOMPARE(priv->effectiveTextMargins().left(), sideWidgetWidth); + QCOMPARE(priv->effectiveTextMargins().right(), sideWidgetWidth); +#endif +} + Q_DECLARE_METATYPE(Qt::AlignmentFlag) void tst_QLineEdit::shouldShowPlaceholderText_data() {