HackStudio: Add placeholder code to test widget factory construction

We now use the magical widget registry to factory-construct widgets and
place them into the form.

This will need all kinds of work, but it's nice that the mechanism is
working as intended.

DevTools/HackStudio/FormEditorWidget.h

@@ -9,6 +9,9 @@ class FormEditorWidget final : public GScrollableWidget {
 public:
  virtual ~FormEditorWidget() override;
 
+ FormWidget& form_widget() { return *m_form_widget; }
+ const FormWidget& form_widget() const { return *m_form_widget; }
+
 private:
  virtual void paint_event(GPaintEvent&) override;
 

DevTools/HackStudio/main.cpp

@@ -3,6 +3,7 @@
 #include "EditorWrapper.h"
 #include "FindInFilesWidget.h"
 #include "FormEditorWidget.h"
+#include "FormWidget.h"
 #include "Locator.h"
 #include "Project.h"
 #include "TerminalWrapper.h"
@@ -132,8 +133,9 @@ int main(int argc, char** argv)
 
  GWidgetClassRegistration::for_each([&](const GWidgetClassRegistration& reg) {
  auto icon_path = String::format("/res/icons/widgets/%s.png", reg.class_name().characters());
- auto action = GAction::create(reg.class_name(), GraphicsBitmap::load_from_file(icon_path), [&](auto&) {
-
+ auto action = GAction::create(reg.class_name(), GraphicsBitmap::load_from_file(icon_path), [&reg](auto&) {
+ auto widget = reg.construct(&g_form_editor_widget->form_widget());
+ widget->set_relative_rect(30, 30, 30, 30);
  });
  form_widgets_toolbar->add_action(move(action));
  });