replace dynamic_cast to static_cast,
This can be a controversial choice between optmization and clean code.
Obviously we know the converting types,
try avoiding a bit heavier casting some cases.
Change-Id: Id763e6d1db449a229a492ab5b1a901a195936152
We prefer to build up a tiny compact engine at memory rather than compatibility,
this engine is not considerd for end-users but designed for middle-level framework
and some low-level users.
Thus, we won't consider 64bits data size,
use explicit 32 bits data until coming next upgrade...
Change-Id: I0704d5f1e0eb909cccc10922bc5972e115fbbcc0
Introduce Result type for notifying caller more detailed info.
We should implement the result values for each apis, with practical values.
Change-Id: Ia47abcb56a8efca7094ac3eed0178aeac8aa2910
Each scene could conserve its own transformation,
the origin could be the parent Paint (if they were beloned to)
Thus, you can compose the multi-tranformed scene group which
simultenoulsly working in own spaces.
See testTransform and testSceneTransform, how they work.
Change-Id: I51deb4d66f8fcd024f8dc7a1e1af57c398a9d7fe
Scene is a group(list) of paints.
This class is designed for vector data set which is prepared before canvas.
If a set of vector data is loaded from other resources such as files,
they can construct these data set using Scene.
This then can be pushed into canvas as one completed image.
Scene is supposed to be used in svg loading and storing to tvg specific data format(tvg)
Change-Id: Ie2ffebf74e79c59d99a77880630a54b6baad7eec
