On Sat, Jun 18, 2011 at 7:05 AM, Germán Diago <germandiago@gmail.com> wrote: At Adobe we designed an Eve-like (see http://stlab.adobe.com/group__asl__overview.html) DSEL, that would make the Eve example: layout clipping_path { view dialog(name: "Clipping Path") { column(child_horizontal: align_fill) { popup(name: "Path:", bind: @path, items: [ { name: "None", value: empty }, { name: "Path 1", value: 1 }, { name: "Path 2", value: 2 } ]); edit_number(name: "Flatness:", digits: 9, bind: @flatness); } button(name: "OK", default: true, bind: @result); } } look something like this: View * MyClass::create_clipping_path { return dialog(name = "Clipping Path") [ column(child_horizontal = align_fill) [ popup(name = "Path:", bindto = &m_path, items = _ [ _(name = "None", value = nullptr), _(name = "Path 1", value = 1), _(name = "Path 2", value = 2) ], edit_number(name = "Flatness:", digits = 9, bindto = &m_flatness) ], button(name = "OK", def = true, bindto = &m_result) ]; } And your example:
auto gui_definition = Window(title="Hello, world!") << VBox(expand=true) << HBox(expand=true) << Label(text="Name:") && Entry[SLOT(onEntryChanged)]) << End(HBox); << Button(text="hello")[SLOT(onButtonClick)]; << End(VBox) << End(Window);
I think would be: View *MyClass::hello_world() { return Window(title="Hello, world!") [ VBox(expand=true) [ HBox(expand=true) [ Label(text="Name:"), Entry(onChange = onEntryChanged) ], Button(text="hello", onClick = onButtonClick) ] ]; } Note that the syntax closely modeled XML, but without the verbosity. ie it has unique, unordered, attributes (inside the brackets) and non-unique, ordered elements, [inside the square brackets]. It also, given a "mapping struct", figured out which attributes could be passed to a widget constructor, and which needed to be set separately. ie for Button, if its constructor took a std::string, but not an "onClick" function, the Button would be constructed via, essentially: button = new Button("hello"); button->set(onClick, onButtonClick); Tony