Doc: compile picture snippets

Done-with: Nico Vertriest <nico.vertriest@qt.io>
Task-number: QTBUG-81486
Change-Id: I9daf8ed8c7d9620cd59feb40677795cbac30c97c
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

src/gui/doc/snippets/picture/picture.cpp

@@ -47,36 +47,34 @@
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
-
 #include <QtWidgets>
 
-void myProcessing(const QString &)
+namespace picture {
+void wrapper0()
 {
-}
-
-int main()
-{
-    QWidget myWidget;
-    {
-        // RECORD
 //! [0]
-        QPicture picture;
-        QPainter painter;
-        painter.begin(&picture);           // paint in picture
-        painter.drawEllipse(10,20, 80,70); // draw an ellipse
-        painter.end();                     // painting done
-        picture.save("drawing.pic");       // save picture
+QPicture picture;
+QPainter painter;
+painter.begin(&picture);           // paint in picture
+painter.drawEllipse(10,20, 80,70); // draw an ellipse
+painter.end();                     // painting done
+picture.save("drawing.pic");       // save picture
 //! [0]
-    }
 
-    {
-        // REPLAY
+} // wrapper0
+
+
+void wrapper1() {
+QImage myImage;
+
 //! [1]
-        QPicture picture;
-        picture.load("drawing.pic");           // load picture
-        QPainter painter;
-        painter.begin(&myImage);               // paint in myImage
-        painter.drawPicture(0, 0, picture);    // draw the picture at (0,0)
-        painter.end();                         // painting done
+QPicture picture;
+picture.load("drawing.pic");           // load picture
+QPainter painter;
+painter.begin(&myImage);               // paint in myImage
+painter.drawPicture(0, 0, picture);    // draw the picture at (0,0)
+painter.end();                         // painting done
 //! [1]
-    }
+
+} // wrapper1
+} // picture

src/gui/doc/snippets/picture/picture.pro

@@ -0,0 +1,7 @@
+TEMPLATE = lib
+TARGET = picture_snippets
+QT += core gui widgets
+
+SOURCES = \
+    picture.cpp
+

src/gui/doc/snippets/snippets.pro

@@ -11,6 +11,7 @@ contains(QT_BUILD_PARTS, tests) {
         dropevents \
         droprectangle \
         image \
+        picture \
         qfontdatabase \
         textblock-formats \
         textblock-fragments \