Bounding rect of text was not always calculated correctly.

The boundingRect depended upon the image cache which may not become
valid until after boundingRect is called.

Task-number: QTBUG-12291
Reviewed-by: Michael Brasser
(cherry picked from commit 3aeafb4839f49f524f10eae65be27fd189d37060)

3 files changed, 64 insertions, 53 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativetext.cpp b/src/declarative/graphicsitems/qdeclarativetext.cpp
index 9b0391d..83911cb 100644
--- a/src/declarative/graphicsitems/qdeclarativetext.cpp
+++ b/src/declarative/graphicsitems/qdeclarativetext.cpp
@@ -710,63 +710,37 @@ QRectF QDeclarativeText::boundingRect() const
     int x = 0;
     int y = 0;
 
-    // Could include font max left/right bearings to either side of rectangle.
-
-    if (d->cache || d->style != Normal) {
-        QDeclarativeTextPrivate *dd = const_cast<QDeclarativeTextPrivate *>(d);
-        dd->checkImgCache();
-        switch (d->hAlign) {
-        case AlignLeft:
-            x = 0;
-            break;
-        case AlignRight:
-            x = w - d->imgCache.width();
-            break;
-        case AlignHCenter:
-            x = (w - d->imgCache.width()) / 2;
-            break;
-        }
-
-        switch (d->vAlign) {
-        case AlignTop:
-            y = 0;
-            break;
-        case AlignBottom:
-            y = h - d->imgCache.height();
-            break;
-        case AlignVCenter:
-            y = (h - d->imgCache.height()) / 2;
-            break;
-        }
+    QSize size = d->cachedLayoutSize;
+    if (d->style != Normal)
+        size += QSize(2,2);
 
-        return QRectF(x,y,d->imgCache.width(),d->imgCache.height());
-    } else {
-        switch (d->hAlign) {
-        case AlignLeft:
-            x = 0;
-            break;
-        case AlignRight:
-            x = w - d->cachedLayoutSize.width();
-            break;
-        case AlignHCenter:
-            x = (w - d->cachedLayoutSize.width()) / 2;
-            break;
-        }
+    // Could include font max left/right bearings to either side of rectangle.
 
-        switch (d->vAlign) {
-        case AlignTop:
-            y = 0;
-            break;
-        case AlignBottom:
-            y = h - d->cachedLayoutSize.height();
-            break;
-        case AlignVCenter:
-            y = (h - d->cachedLayoutSize.height()) / 2;
-            break;
-        }
+    switch (d->hAlign) {
+    case AlignLeft:
+        x = 0;
+        break;
+    case AlignRight:
+        x = w - size.width();
+        break;
+    case AlignHCenter:
+        x = (w - size.width()) / 2;
+        break;
+    }
 
-        return QRectF(x,y,d->cachedLayoutSize.width(),d->cachedLayoutSize.height());
+    switch (d->vAlign) {
+    case AlignTop:
+        y = 0;
+        break;
+    case AlignBottom:
+        y = h - size.height();
+        break;
+    case AlignVCenter:
+        y = (h - size.height()) / 2;
+        break;
     }
+
+    return QRectF(x,y,size.width(),size.height());
 }
 
 void QDeclarativeText::geometryChanged(const QRectF &newGeometry,
diff --git a/tests/auto/declarative/qdeclarativetext/data/rotated.qml b/tests/auto/declarative/qdeclarativetext/data/rotated.qml
new file mode 100644
index 0000000..01eec44
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativetext/data/rotated.qml
@@ -0,0 +1,18 @@
+import Qt 4.7
+
+Rectangle {
+    width : 200
+    height : 100
+
+    Text {
+        objectName: "text"
+        x: 20
+        y: 20
+        height : 20
+        width : 80
+        text : "Something"
+        rotation : 30
+        transformOrigin : Item.TopLeft
+    }
+}
+
diff --git a/tests/auto/declarative/qdeclarativetext/tst_qdeclarativetext.cpp b/tests/auto/declarative/qdeclarativetext/tst_qdeclarativetext.cpp
index 821394d..658f381 100644
--- a/tests/auto/declarative/qdeclarativetext/tst_qdeclarativetext.cpp
+++ b/tests/auto/declarative/qdeclarativetext/tst_qdeclarativetext.cpp
@@ -97,6 +97,8 @@ private slots:
 
     void clickLink();
 
+    void QTBUG_12291();
+
 private:
     QStringList standard;
     QStringList richText;
@@ -898,6 +900,23 @@ void tst_qdeclarativetext::wordSpacing()
     }
 }
 
+void tst_qdeclarativetext::QTBUG_12291()
+{
+    QDeclarativeView *canvas = createView(SRCDIR "/data/rotated.qml");
+
+    canvas->show();
+    QApplication::setActiveWindow(canvas);
+    QTest::qWaitForWindowShown(canvas);
+    QTRY_COMPARE(QApplication::activeWindow(), static_cast<QWidget *>(canvas));
+
+    QObject *ob = canvas->rootObject();
+    QVERIFY(ob != 0);
+
+    QDeclarativeText *text = ob->findChild<QDeclarativeText*>("text");
+    QVERIFY(text);
+    QVERIFY(text->boundingRect().isValid());
+}
+
 class EventSender : public QGraphicsItem
 {
 public: