added gstreamer and gboxed types support

examples/gtk3/gstBasicTutorial1.nim

@@ -0,0 +1,20 @@
+# https://gstreamer.freedesktop.org/documentation/tutorials/basic/hello-world.html?gi-language=c
+# nim c gstBasicTutorial1.nim
+import gintro/gst
+
+proc main =
+  var pipeline: gst.Element
+  var bus: gst.Bus
+  var msg: gst.Message
+  ##  Initialize GStreamer
+  gst.init()
+  ##  Build the pipeline
+  pipeline = gst.parseLaunch("playbin uri=https://www.freedesktop.org/software/gstreamer-sdk/data/media/sintel_trailer-480p.webm")
+  ##  Start playing
+  discard gst.setState(pipeline, gst.State.playing)
+  ##  Wait until error or EOS
+  bus = gst.getBus(pipeline)
+  msg = gst.timedPopFiltered(bus, gst.Clock_Time_None, {gst.MessageFlag.error, gst.MessageFlag.eos})
+  discard gst.setState(pipeline, gst.State.null) # is this necessary?
+
+main()

examples/gtk3/listview.nim

@@ -24,7 +24,7 @@ proc appendItem(widget: Button; entry: Entry) =
     val: Value
     iter: TreeIter
   let store = listStore(getModel(list))
-  let gtype = typeFromName("gchararray")
+  let gtype = gStringGetType() # typeFromName("gchararray")
   discard init(val, gtype)
   setString(val, entry.text)
   store.append(iter)
@@ -57,7 +57,7 @@ proc initList(list: TreeView) =
   column.packStart(renderer, true)
   column.addAttribute(renderer, "text", LIST_ITEM)
   discard list.appendColumn(column)
-  let gtype = typeFromName("gchararray")
+  let gtype = gStringGetType() # typeFromName("gchararray")
   let store = newListStore(N_COLUMNS, cast[pointer]( unsafeaddr gtype)) # cast due to bug in gtk.nim
   list.setModel(store)
 

examples/gtk3/makeAll

@@ -16,3 +16,6 @@ nim c simpledrawingarea.nim
 nim c css_colored_listview.nim
 nim c gearsmenu.nim
 nim c cairoImage.nim
+nim c gstBasicTutorial1.nim
+nim c sourceview_test.nim
+nim c overlay_tree1.nim

examples/gtk3/sourceview_test.nim

@@ -0,0 +1,16 @@
+import gintro/[gtk, glib, gobject, gio, gtksource]
+
+proc appActivate (app: Application) =
+  let window = newApplicationWindow(app)
+  window.title = "GTKSourceView"
+  window.defaultSize = (250, 350)
+  let view = newView()
+  window.add(view)
+  window.showAll
+
+proc main =
+  let app = newApplication("org.gtk.example")
+  connect(app, "activate", appActivate)
+  discard app.run
+
+main()