Remove QGuiAction again and split QAction implementation up instead

Duplicating the number of classes is a high price to pay to be able to
have some QAction functionality behave differently, or be only available
in widgets applications.

Instead, declare the entire API in QtGui in QAction* classes, and
delegate the implementation of QtWidgets specific functionality to
the private. The creation of the private is then delegated to the
Q(Gui)ApplicationPrivate instance through a virtual factory function.

Change some public APIs that are primarily useful for specialized tools
such as Designer to operate on QObject* rather than QWidget*. APIs that
depend on QtWidgets types have been turned into inline template
functions, so that they are instantiated only at the caller side, where
we can expect the respective types to be fully defined. This way, we
only need to forward declare a few classes in the header, and don't
need to generate any additional code for e.g. language bindings.

Change-Id: Id0b27f9187652ec531a2e8b1b9837e82dc81625c
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

8 files changed, 8 insertions, 8 deletions

diff --git a/tests/auto/tools/uic/baseline/browserwidget.ui.h b/tests/auto/tools/uic/baseline/browserwidget.ui.h
index 7dcfb290f7..07142c5ea1 100644
--- a/tests/auto/tools/uic/baseline/browserwidget.ui.h
+++ b/tests/auto/tools/uic/baseline/browserwidget.ui.h
@@ -10,7 +10,7 @@
 #define BROWSERWIDGET_H
 
 #include <QtCore/QVariant>
-#include <QtWidgets/QAction>
+#include <QtGui/QAction>
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QGroupBox>
 #include <QtWidgets/QHBoxLayout>
diff --git a/tests/auto/tools/uic/baseline/chatmainwindow.ui.h b/tests/auto/tools/uic/baseline/chatmainwindow.ui.h
index 220d44300b..43f83059d4 100644
--- a/tests/auto/tools/uic/baseline/chatmainwindow.ui.h
+++ b/tests/auto/tools/uic/baseline/chatmainwindow.ui.h
@@ -10,7 +10,7 @@
 #define CHATMAINWINDOW_H
 
 #include <QtCore/QVariant>
-#include <QtWidgets/QAction>
+#include <QtGui/QAction>
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QHBoxLayout>
 #include <QtWidgets/QLabel>
diff --git a/tests/auto/tools/uic/baseline/default.ui.h b/tests/auto/tools/uic/baseline/default.ui.h
index fbbe81d0b8..bc9ad75858 100644
--- a/tests/auto/tools/uic/baseline/default.ui.h
+++ b/tests/auto/tools/uic/baseline/default.ui.h
@@ -10,7 +10,7 @@
 #define DEFAULT_H
 
 #include <QtCore/QVariant>
-#include <QtWidgets/QAction>
+#include <QtGui/QAction>
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QCheckBox>
 #include <QtWidgets/QComboBox>
diff --git a/tests/auto/tools/uic/baseline/mainwindow.ui.h b/tests/auto/tools/uic/baseline/mainwindow.ui.h
index df61d57ceb..1f375dd313 100644
--- a/tests/auto/tools/uic/baseline/mainwindow.ui.h
+++ b/tests/auto/tools/uic/baseline/mainwindow.ui.h
@@ -10,7 +10,7 @@
 #define MAINWINDOW_H
 
 #include <QtCore/QVariant>
-#include <QtWidgets/QAction>
+#include <QtGui/QAction>
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QCheckBox>
 #include <QtWidgets/QComboBox>
diff --git a/tests/auto/tools/uic/baseline/pagefold.ui.h b/tests/auto/tools/uic/baseline/pagefold.ui.h
index a0594b7ec7..cc5f96982b 100644
--- a/tests/auto/tools/uic/baseline/pagefold.ui.h
+++ b/tests/auto/tools/uic/baseline/pagefold.ui.h
@@ -10,7 +10,7 @@
 #define PAGEFOLD_H
 
 #include <QtCore/QVariant>
-#include <QtWidgets/QAction>
+#include <QtGui/QAction>
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QCheckBox>
 #include <QtWidgets/QComboBox>
diff --git a/tests/auto/tools/uic/baseline/qttrid.ui.h b/tests/auto/tools/uic/baseline/qttrid.ui.h
index 890ffc7789..cb5a4cb2e8 100644
--- a/tests/auto/tools/uic/baseline/qttrid.ui.h
+++ b/tests/auto/tools/uic/baseline/qttrid.ui.h
@@ -10,8 +10,8 @@
 #define QTTRID_H
 
 #include <QtCore/QVariant>
+#include <QtGui/QAction>
 #include <QtGui/QIcon>
-#include <QtWidgets/QAction>
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QCheckBox>
 #include <QtWidgets/QGridLayout>
diff --git a/tests/auto/tools/uic/baseline/remotecontrol.ui.h b/tests/auto/tools/uic/baseline/remotecontrol.ui.h
index 5b7c6c42c2..c5b72be860 100644
--- a/tests/auto/tools/uic/baseline/remotecontrol.ui.h
+++ b/tests/auto/tools/uic/baseline/remotecontrol.ui.h
@@ -10,8 +10,8 @@
 #define REMOTECONTROL_H
 
 #include <QtCore/QVariant>
+#include <QtGui/QAction>
 #include <QtGui/QIcon>
-#include <QtWidgets/QAction>
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QCheckBox>
 #include <QtWidgets/QGridLayout>
diff --git a/tests/auto/tools/uic/baseline/trpreviewtool.ui.h b/tests/auto/tools/uic/baseline/trpreviewtool.ui.h
index 612d7ad427..3e1e7afbd3 100644
--- a/tests/auto/tools/uic/baseline/trpreviewtool.ui.h
+++ b/tests/auto/tools/uic/baseline/trpreviewtool.ui.h
@@ -40,7 +40,7 @@
 #define TRPREVIEWTOOL_H
 
 #include <QtCore/QVariant>
-#include <QtWidgets/QAction>
+#include <QtGui/QAction>
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QDockWidget>
 #include <QtWidgets/QListView>