The new api is introduced to handle the rendering
order of a stroke and a fill. By default fill is
rendered as the first one, stroke as the second
one. This order can be reversed by calling
order(true).
@Issue: https://github.com/thorvg/thorvg/issues/1340
re-design the shape data structure so that render backends
are able to access them directly.
This also let us remove tvgShape member data from the Shape::Impl.
To achieve this, migrate shape/stroke/path
from the canvas interface to the render interface.
Migrate the id property to the base class internals
so that pimpl classes could access the data easier.
This is a sort of prerequisite change for the coming texmap anti-aliasing.
This identifier is useful when user identify the instance type in runtime.
ThorVG basically don't prefer to dynamic_cast() nor typeid(),
it compiles with -fno-rtti option for the optimial size.
Here is an example for the simple usage.
if (paint->identifier() == Shape::identifier())
auto shape = static_cast<Shape*>(paint);
@Issue: https://github.com/Samsung/thorvg/issues/693
The PaintType enum was used to set the paint type in the internal Paint
implementation. This solution is switched to an identifier with id() getter,
so that the information about the type can be reached from outside the Paint.
Description:
Fixed appendArc API for -90 angles. In that case it was drawn in wrong
direction.
@Examples
```cpp
float x = 40.0, y = 40.0;
auto shape1 = tvg::Shape::gen();
//OK
shape1->appendArc(x + 50, y, 25, 0, -91, false);
//NOK
shape1->appendArc(x + 100, y, 25, 0, -90, false);
//OK
shape1->appendArc(x + 150, y, 25, 0, -89, false);
```
Scene could avoid composition if its children is only child (non scene)
This patch bring it conditionally check so as to avoid unnecesary expensive job.
@Issues: 254
* sw_engine: adding a gradient as a stroke feature
Similarly as a shape may have a gradient fill so can the stroke.
* Capi: adding APIs for a gradient stroke
Co-authored-by: Hermet Park <hermetpark@gmail.com>
The _appendArc function allows to draw angles only in a clockwise direction.
The introduced improvement allows to change this direction by giving the 'sweep' argument
with a negative value.
Fill rule is used to select how paths are filled.
For both fill rules, wheter or not a point is included in the fill is determined by taking a ray
from that point to infinity and looking at intersections with the path. The ray can be in any
direction, as long as it doens't pass through the end point of a segment or have a tricky
intersection such as intersecting tangent to the path.
@API Addtions:
enum class TVG_EXPORT FillRule { Winding = 0, EvenOdd };
Result Fill::rule(FillRule r) noexcept;
FillRule Fill::rule() const noexcept;
@Examples:
shape->rule(FillRule::EvenOdd);
@issue: 97
we should avoid code insertion during file dependencies,
such as #include "xxx.h" which has implementations.
This could increase binary size, we can avoid it as possible.
Current patch improves binary size like this:
From: file(2059008) = text(120360) data(8096) bss(80) dec(128536)
To : file(1921832) = text(118429) data(7872) bss(56) dec(126357)
More additional patches will come in to optmize binary size.
Changes:
1. New shape->duplicate(Shape) api.
2. New example: testDuplicate
3. Added capi binding for duploicate api
4. Added capi duplication test in testCapi.c
Description:
Added implementation of duplicate api. For now it supports stroke
properties and shape properties (fill color, path) duplication.
TODO:
Implement gradient properties duplication
remove unnecessary condition.
implementation won't be included multiple times not like headers.
Thus this condition is unnecessary.
Change-Id: Id37e675c40ce7213a06c950da8e5ca17ff7245c9
Introduce internal PaintMethod since there more derived paint classes are coming.
This PaintMethod is a sort of Strategy Pattern method.
Change-Id: I29c49f5d4ddbfb9e429d4976636b20b39914ee20
