Add QQuickPopup::mirrored

This allows taking RTL into account e.g. when defining transitions and
transform origins.

[ChangeLog][Controls][Popup] Added a read-only "mirrored" property that
is true when the popup's locale is right-to-left.

Change-Id: I12fe09d8ed3af2836c92631ae43752929b08feb5
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

4 files changed, 31 insertions, 1 deletions

diff --git a/src/quicktemplates2/qquickpopup.cpp b/src/quicktemplates2/qquickpopup.cpp
index 38ca6edf..143075e6 100644
--- a/src/quicktemplates2/qquickpopup.cpp
+++ b/src/quicktemplates2/qquickpopup.cpp
@@ -1396,7 +1396,7 @@ void QQuickPopup::resetBottomPadding()
 
     This property holds the locale of the popup.
 
-    \sa {LayoutMirroring}{LayoutMirroring}
+    \sa mirrored, {LayoutMirroring}{LayoutMirroring}
 */
 QLocale QQuickPopup::locale() const
 {
@@ -1417,6 +1417,25 @@ void QQuickPopup::resetLocale()
 }
 
 /*!
+    \since QtQuick.Controls 2.3 (Qt 5.10)
+    \qmlproperty bool QtQuick.Controls::Popup::mirrored
+    \readonly
+
+    This property holds whether the popup is mirrored.
+
+    This property is provided for convenience. A popup is considered mirrored
+    when its visual layout direction is right-to-left; that is, when using a
+    right-to-left locale.
+
+    \sa locale, {Right-to-left User Interfaces}
+*/
+bool QQuickPopup::isMirrored() const
+{
+    Q_D(const QQuickPopup);
+    return d->popupItem->isMirrored();
+}
+
+/*!
     \qmlproperty font QtQuick.Controls::Popup::font
 
     This property holds the font currently set for the popup.
diff --git a/src/quicktemplates2/qquickpopup_p.h b/src/quicktemplates2/qquickpopup_p.h
index 803be911..c22ed638 100644
--- a/src/quicktemplates2/qquickpopup_p.h
+++ b/src/quicktemplates2/qquickpopup_p.h
@@ -97,6 +97,7 @@ class Q_QUICKTEMPLATES2_PRIVATE_EXPORT QQuickPopup : public QObject, public QQml
     Q_PROPERTY(qreal rightPadding READ rightPadding WRITE setRightPadding RESET resetRightPadding NOTIFY rightPaddingChanged FINAL)
     Q_PROPERTY(qreal bottomPadding READ bottomPadding WRITE setBottomPadding RESET resetBottomPadding NOTIFY bottomPaddingChanged FINAL)
     Q_PROPERTY(QLocale locale READ locale WRITE setLocale RESET resetLocale NOTIFY localeChanged FINAL)
+    Q_PROPERTY(bool mirrored READ isMirrored NOTIFY mirroredChanged FINAL REVISION 3)
     Q_PROPERTY(QFont font READ font WRITE setFont RESET resetFont NOTIFY fontChanged FINAL)
     Q_PROPERTY(QPalette palette READ palette WRITE setPalette RESET resetPalette NOTIFY paletteChanged FINAL REVISION 3)
     Q_PROPERTY(QQuickItem *parent READ parentItem WRITE setParentItem NOTIFY parentChanged FINAL)
@@ -207,6 +208,8 @@ public:
     void setLocale(const QLocale &locale);
     void resetLocale();
 
+    bool isMirrored() const;
+
     QFont font() const;
     void setFont(const QFont &font);
     void resetFont();
@@ -324,6 +327,7 @@ Q_SIGNALS:
     void bottomPaddingChanged();
     void fontChanged();
     void localeChanged();
+    Q_REVISION(3) void mirroredChanged();
     Q_REVISION(3) void paletteChanged();
     void parentChanged();
     void backgroundChanged();
diff --git a/src/quicktemplates2/qquickpopupitem.cpp b/src/quicktemplates2/qquickpopupitem.cpp
index 27b800f0..a8d35596 100644
--- a/src/quicktemplates2/qquickpopupitem.cpp
+++ b/src/quicktemplates2/qquickpopupitem.cpp
@@ -289,6 +289,12 @@ void QQuickPopupItem::localeChange(const QLocale &newLocale, const QLocale &oldL
     d->popup->localeChange(newLocale, oldLocale);
 }
 
+void QQuickPopupItem::mirrorChange()
+{
+    Q_D(QQuickPopupItem);
+    emit d->popup->mirroredChanged();
+}
+
 void QQuickPopupItem::itemChange(ItemChange change, const ItemChangeData &data)
 {
     Q_D(QQuickPopupItem);
diff --git a/src/quicktemplates2/qquickpopupitem_p_p.h b/src/quicktemplates2/qquickpopupitem_p_p.h
index 97f6415f..0187b77a 100644
--- a/src/quicktemplates2/qquickpopupitem_p_p.h
+++ b/src/quicktemplates2/qquickpopupitem_p_p.h
@@ -91,6 +91,7 @@ protected:
     void fontChange(const QFont &newFont, const QFont &oldFont) override;
     void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) override;
     void localeChange(const QLocale &newLocale, const QLocale &oldLocale) override;
+    void mirrorChange() override;
     void itemChange(ItemChange change, const ItemChangeData &data) override;
     void paddingChange(const QMarginsF &newPadding, const QMarginsF &oldPadding) override;
     void paletteChange(const QPalette &newPalette, const QPalette &oldPalette) override;