Add ObjectInstances.findQuickWindow and passive-instrumenter exampleHEADmaster

This is a means of instrumenting any pure-QML application to generate an
object diagram showing the items and related objects belonging to the
first top-level window that can be found.

Using a Timer for that is kindof crude; perhaps we should rather
have a separate WindowFinder object that can emit a signal when a
new top-level window is discovered, or something like that. Or use
a Shortcut to trigger it manually. But it works well enough for now.

Change-Id: Ib2d82dfd6fbd4da4b46fbaadb08de2c5e649ffe6
Reviewed-by: Shawn Rutledge <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/generators/objectinstances_p.h b/src/generators/objectinstances_p.h
index 7630743..142d84e 100644
--- a/src/generators/objectinstances_p.h
+++ b/src/generators/objectinstances_p.h
@@ -6,6 +6,7 @@
 
 #include <QFile>
 #include <QQmlEngine>
+#include <QQuickWindow>
 
 QT_BEGIN_NAMESPACE
 
@@ -44,6 +45,7 @@ public:
     void setRoot(QObject *newRoot);
 
     Q_INVOKABLE void generate();
+    Q_INVOKABLE QQuickWindow *findQuickWindow();
 
     ColorSource nodeColorSource() const;
     void setNodeColorSource(ColorSource newNodeColorSource);