Mig-infocom MiG Calendar Getting Started Guide Manual de usuario descargar pdf (Pagina 26)

MiG InfoCom AB

constrains on other parts. For a full primer on AShapes set

the AShape Tutorial and the MiG Calendar Technical Specification

documents.

Rectangle shape = new Rectangle(0, 0, 1, 1);

//Ellipse2D shape = new Ellipse2D.Float(0, 0, 1, 1); // Alternative.

FillAShape box = new FillAShape("fill", shape, AbsRect.FILL, Color.BLUE, null);

RootAShape root = new RootAShape(box);

The root object is the shape to use. AShapes are stored in a

hierarchy with a RootAShape at the top. The root shape can

be viewed as the handle for the whole shape and must exist

at the very top of the hierarchy tree.

Notice that the FillShape itself doesn't impose what

geometry it should fill, that is provided in the constructor and

can be any Java2D Shape, including GeneralPath and our

own version with better, constrainable, coordinates types;

PolygonShape.

As always, to see exactly what the arguments mean and

what the objects can do see the MiG Calendar Technical

Specification.

Now we need to tell our component how to use our newly

created AShape. As it turns out, this can be done in more

than one way.

1. Exchange the Decorator in DefaultDateArea for your

own. The most flexible solution, but much of the boiler

plate work that is handled automatically by

DefaultDateArea has to be remade by you.

2. Exchange ActivityViewRenderer in the

DefaultDateArea with a proprietary one that uses the

new shape when painting. Also very flexible but much

easier to implement since you will be provided with the

ActivityViews to paint and the total bounds. There is

nothing 'AShape' about this approach though, you can use

pure Java2D if you like.

3. Get the DefaultAShapeProvider from the the

ActivityViewRenderer, which we know is a

AShapeRenderer, and instruct it to use a some other

RootAShape for some paintContext.

DefaultAShapeProvider uses the paintContext of

the Activity to look up a RootAShape to return. There

are both a map for the actual renderer and a fall back

MiG Calendar Getting Started Guide Page 26 / 31

1 2 ... 21 22 23 24 25 26 27 28 29 30 31

Sin comentarios

Mig-infocom MiG Calendar Getting Started Guide Manual de usuario Pagina 26