Calling setMinimumSize(0, 0) on a top-level window sometimes triggers a bug

in the Compiz window manager which leads to the QML viewer mainwindow not
being composited anymore (at least until the next resize).
Since we need to somehow switch between fixed size and freely resizable
views, we have to work around that bug using the layout constraint hints.

Task-number: QTBUG-11771
Reviewed-by: kkoehne
(cherry picked from commit 07321dfceed41c1851781841e03c4148da47e41e)

1 files changed, 12 insertions, 14 deletions

diff --git a/tests/auto/declarative/qdeclarativeviewer/tst_qdeclarativeviewer.cpp b/tests/auto/declarative/qdeclarativeviewer/tst_qdeclarativeviewer.cpp
index 9660430..5344698 100644
--- a/tests/auto/declarative/qdeclarativeviewer/tst_qdeclarativeviewer.cpp
+++ b/tests/auto/declarative/qdeclarativeviewer/tst_qdeclarativeviewer.cpp
@@ -113,7 +113,6 @@ void tst_QDeclarativeViewer::orientation()
 
     viewer->rotateOrientation();
     qApp->processEvents();
-    qApp->processEvents(); // one extra round for the delayed updateSizeHints() call
 
     QCOMPARE(rootItem->width(), 300.0);
     QCOMPARE(rootItem->height(), 200.0);
@@ -124,7 +123,6 @@ void tst_QDeclarativeViewer::orientation()
 
     viewer->rotateOrientation();
     qApp->processEvents();
-    qApp->processEvents(); // one extra round for the delayed updateSizeHints() call
 
     QCOMPARE(rootItem->width(), 200.0);
     QCOMPARE(rootItem->height(), 300.0);
@@ -157,10 +155,10 @@ void tst_QDeclarativeViewer::loading()
 
     // window resized
     QTRY_COMPARE(rootItem->width(), 400.0);
-    QTRY_COMPARE(rootItem->height(), 500.0-viewer->menuBar()->height());
-    QCOMPARE(viewer->view()->size(), QSize(400, 500-viewer->menuBar()->height()));
+    QTRY_COMPARE(rootItem->height(), 500.0 - MENUBAR_HEIGHT(viewer));
+    QCOMPARE(viewer->view()->size(), QSize(400, 500 - MENUBAR_HEIGHT(viewer)));
     QCOMPARE(viewer->view()->initialSize(), QSize(200, 300));
-    QCOMPARE(viewer->view()->sceneRect().size(), QSizeF(400, 500-viewer->menuBar()->height()));
+    QCOMPARE(viewer->view()->sceneRect().size(), QSizeF(400, 500 - MENUBAR_HEIGHT(viewer)));
     QCOMPARE(viewer->size(), QSize(400, 500));
     QCOMPARE(viewer->size(), viewer->sizeHint());
 
@@ -174,7 +172,7 @@ void tst_QDeclarativeViewer::loading()
     QCOMPARE(viewer->view()->size(), QSize(200, 300));
     QCOMPARE(viewer->view()->initialSize(), QSize(200, 300));
     QCOMPARE(viewer->view()->sceneRect().size(), QSizeF(200, 300));
-    QCOMPARE(viewer->size(), QSize(200, 300+viewer->menuBar()->height()));
+    QCOMPARE(viewer->size(), QSize(200, 300 + MENUBAR_HEIGHT(viewer)));
     QCOMPARE(viewer->size(), viewer->sizeHint());
 
     viewer->resize(QSize(400, 500));
@@ -182,10 +180,10 @@ void tst_QDeclarativeViewer::loading()
 
     // window resized again
     QTRY_COMPARE(rootItem->width(), 400.0);
-    QTRY_COMPARE(rootItem->height(), 500.0-viewer->menuBar()->height());
-    QCOMPARE(viewer->view()->size(), QSize(400, 500-viewer->menuBar()->height()));
+    QTRY_COMPARE(rootItem->height(), 500.0 - MENUBAR_HEIGHT(viewer));
+    QCOMPARE(viewer->view()->size(), QSize(400, 500 - MENUBAR_HEIGHT(viewer)));
     QCOMPARE(viewer->view()->initialSize(), QSize(200, 300));
-    QCOMPARE(viewer->view()->sceneRect().size(), QSizeF(400, 500-viewer->menuBar()->height()));
+    QCOMPARE(viewer->view()->sceneRect().size(), QSizeF(400, 500 - MENUBAR_HEIGHT(viewer)));
     QCOMPARE(viewer->size(), QSize(400, 500));
     QCOMPARE(viewer->size(), viewer->sizeHint());
 
@@ -199,7 +197,7 @@ void tst_QDeclarativeViewer::loading()
     QCOMPARE(viewer->view()->size(), QSize(200, 300));
     QCOMPARE(viewer->view()->initialSize(), QSize(200, 300));
     QCOMPARE(viewer->view()->sceneRect().size(), QSizeF(200, 300));
-    QCOMPARE(viewer->size(), QSize(200, 300+viewer->menuBar()->height()));
+    QCOMPARE(viewer->size(), QSize(200, 300 + MENUBAR_HEIGHT(viewer)));
     QCOMPARE(viewer->size(), viewer->sizeHint());
 }
 
@@ -266,7 +264,7 @@ void tst_QDeclarativeViewer::resizing()
     QTRY_COMPARE(viewer->view()->size(), QSize(150, 200));
     QCOMPARE(viewer->view()->initialSize(), QSize(200, 300));
     QCOMPARE(viewer->view()->sceneRect().size(), QSizeF(150, 200));
-    QCOMPARE(viewer->size(), QSize(150, 200+viewer->menuBar()->height()));
+    QCOMPARE(viewer->size(), QSize(150, 200 + MENUBAR_HEIGHT(viewer)));
 
     // do not size root object to view
     viewer->resize(QSize(180,250));
@@ -280,10 +278,10 @@ void tst_QDeclarativeViewer::resizing()
     qApp->processEvents();
 
     QTRY_COMPARE(rootItem->width(), 250.0);
-    QTRY_COMPARE(rootItem->height(), 350.0-viewer->menuBar()->height());
-    QTRY_COMPARE(viewer->view()->size(), QSize(250, 350-viewer->menuBar()->height()));
+    QTRY_COMPARE(rootItem->height(), 350.0 - MENUBAR_HEIGHT(viewer));
+    QTRY_COMPARE(viewer->view()->size(), QSize(250, 350 - MENUBAR_HEIGHT(viewer)));
     QCOMPARE(viewer->view()->initialSize(), QSize(200, 300));
-    QCOMPARE(viewer->view()->sceneRect().size(), QSizeF(250, 350-viewer->menuBar()->height()));
+    QCOMPARE(viewer->view()->sceneRect().size(), QSizeF(250, 350 - MENUBAR_HEIGHT(viewer)));
     QCOMPARE(viewer->size(), QSize(250, 350));
 
     // do not size view to root object