Deal better with empty windows.

If a view is constructed without the window being set to a useful size
then confusing errors and asserts are produced.  Make a better warning.

Also fix some tutorials that were failing for this reason.

Change-Id: I489b2ece1bb45346f8fced5dee7e3a4fb656193f
Reviewed-by: Sarah Jane Smith <sarah.j.smith@nokia.com>

6 files changed, 6 insertions, 0 deletions

diff --git a/tutorials/qt3d/cube1/main.cpp b/tutorials/qt3d/cube1/main.cpp
index 8f1535852..27fc378ba 100644
--- a/tutorials/qt3d/cube1/main.cpp
+++ b/tutorials/qt3d/cube1/main.cpp
@@ -45,6 +45,7 @@ int main(int argc, char *argv[])
 {
     QGuiApplication app(argc, argv);
     CubeView view;
+    view.resize(800, 600);
     view.show();
     return app.exec();
 }
diff --git a/tutorials/qt3d/cube2/main.cpp b/tutorials/qt3d/cube2/main.cpp
index 8f1535852..27fc378ba 100644
--- a/tutorials/qt3d/cube2/main.cpp
+++ b/tutorials/qt3d/cube2/main.cpp
@@ -45,6 +45,7 @@ int main(int argc, char *argv[])
 {
     QGuiApplication app(argc, argv);
     CubeView view;
+    view.resize(800, 600);
     view.show();
     return app.exec();
 }
diff --git a/tutorials/qt3d/cube3/main.cpp b/tutorials/qt3d/cube3/main.cpp
index 8f1535852..27fc378ba 100644
--- a/tutorials/qt3d/cube3/main.cpp
+++ b/tutorials/qt3d/cube3/main.cpp
@@ -45,6 +45,7 @@ int main(int argc, char *argv[])
 {
     QGuiApplication app(argc, argv);
     CubeView view;
+    view.resize(800, 600);
     view.show();
     return app.exec();
 }
diff --git a/tutorials/qt3d/cube4/main.cpp b/tutorials/qt3d/cube4/main.cpp
index 8f1535852..27fc378ba 100644
--- a/tutorials/qt3d/cube4/main.cpp
+++ b/tutorials/qt3d/cube4/main.cpp
@@ -45,6 +45,7 @@ int main(int argc, char *argv[])
 {
     QGuiApplication app(argc, argv);
     CubeView view;
+    view.resize(800, 600);
     view.show();
     return app.exec();
 }
diff --git a/tutorials/qt3d/penguin/main.cpp b/tutorials/qt3d/penguin/main.cpp
index 573e663d5..3ce398365 100644
--- a/tutorials/qt3d/penguin/main.cpp
+++ b/tutorials/qt3d/penguin/main.cpp
@@ -46,6 +46,7 @@ int main(int argc, char *argv[])
 {
     QGuiApplication app(argc, argv);
     ModelView view;
+    view.resize(800,600);
     view.show();
     return app.exec();
 }
diff --git a/tutorials/qt3d/penguin_advanced/main.cpp b/tutorials/qt3d/penguin_advanced/main.cpp
index 573e663d5..3ce398365 100644
--- a/tutorials/qt3d/penguin_advanced/main.cpp
+++ b/tutorials/qt3d/penguin_advanced/main.cpp
@@ -46,6 +46,7 @@ int main(int argc, char *argv[])
 {
     QGuiApplication app(argc, argv);
     ModelView view;
+    view.resize(800,600);
     view.show();
     return app.exec();
 }