Thanks. Stef! On Mar 6, 2012, at 12:37 PM, Fernando Olivero wrote:
> Here is the code, the categories which include the mentioned classes. > > I'm preparing a one-click image of Gaucho for the Mac, so you can play > with it also. > And as the official release of the tool also! > > > > On Tue, Mar 6, 2012 at 12:33 PM, fernando.oliv...@usi.ch > <fernando.oliv...@usi.ch> wrote: >> Hi, Stef and Esteban, i'm sending an overview of the event handling >> mechanism of Gaucho. So we can discuss the additions of multitouch >> events and the design as well. >> >> >> Key classes: GUserInterface, GPeripheralDevice, GDisplay, GView and >> the new event model. >> >> GUserInterface: Collaborates with a sensor, and double dispatches the >> event to the proper peripheral device. >> >> GMouse,GKeyboard: a peripheral device that distinguishes the system >> event, and sends the user interface specific reactions: such as >> >> #mouse: aGMouse entered: aGShape >> #keystroke: aGKeystroke from: aGKeyboard >> >> No reification of the events, just message passing amongst the user >> interface, the peripherals, the display, the views, and the shapes. >> >> EXAMPLE >> -------------------------------------------------------- >> EVENTS: from the user to the shape >> -------------------------------------------------------- >> 1)the user clicks on the mouse >> 2) a system event is announced >> 3) the user interface dispatches it to the attached mouse >> 4) the mouse detects that its a click to a particular shape on a view >> of the display and informs the user interface >> 5) the user interface informs the display of the click >> >> ------------------------------------------------------------------------ >> VIEW: shape reacting to events and redrawing >> -------------------------------------------------------------------------- >> 6) the display informs the active view >> 7) the active view informs the shape >> 8) the shape reacts to the click. >> 9)the display asks the shape wether it should redraw, and informs the >> damage recorder. Gaucho implements a visual garbage collector scheme, >> so the code is not polluted with #changed ,similar to eliminating the >> need to send #alloc and #dealloc on memory garbage collector. But this >> is surely for another thread. >> > <GauchoUI-Core.st><GauchoUI-Peripherals-Mouse.st><GauchoUI-Peripherals.st>
