api: remove a beta api.

- Result Picture::viewbox(float* x, float* y, float* w, float* h) const;  //c++
- vg_Result tvg_picture_get_viewbox(const Tvg_Paint* paint, float* x, float* y, float* w, float* h);  //c

@Issue: https://github.com/thorvg/thorvg/issues/1372

inc/thorvg.h

@@ -1238,15 +1238,6 @@ public:
      */
     uint32_t mesh(const Polygon** triangles) const noexcept;
 
-    /**
-     * @brief Gets the position and the size of the loaded SVG picture.
-     *
-     * @warning Please do not use it, this API is not official one. It could be modified in the next version.
-     *
-     * @BETA_API
-     */
-    Result viewbox(float* x, float* y, float* w, float* h) const noexcept;
-
     /**
      * @brief Creates a new Picture object.
      *

src/bindings/capi/thorvg_capi.h

@@ -1920,14 +1920,6 @@ TVG_API Tvg_Result tvg_picture_set_size(Tvg_Paint* paint, float w, float h);
 TVG_API Tvg_Result tvg_picture_get_size(const Tvg_Paint* paint, float* w, float* h);
 
 
-/*!
-* \brief Gets the position and the size of the loaded picture. (BETA_API)
-*
-* \warning Please do not use it, this API is not official one. It can be modified in the next version.
-*/
-TVG_API Tvg_Result tvg_picture_get_viewbox(const Tvg_Paint* paint, float* x, float* y, float* w, float* h);
-
-
 /** \} */   // end defgroup ThorVGCapi_Picture
 
 

src/bindings/capi/tvgCapi.cpp

@@ -508,13 +508,6 @@ TVG_API Tvg_Result tvg_picture_get_size(const Tvg_Paint* paint, float* w, float*
 }
 
 
-TVG_API Tvg_Result tvg_picture_get_viewbox(const Tvg_Paint* paint, float* x, float* y, float* w, float* h)
-{
-    if (!paint) return TVG_RESULT_INVALID_ARGUMENT;
-    return (Tvg_Result) reinterpret_cast<const Picture*>(paint)->viewbox(x, y, w, h);
-}
-
-
 /************************************************************************/
 /* Gradient API                                                         */
 /************************************************************************/

src/lib/tvgLoadModule.h

@@ -31,11 +31,6 @@ namespace tvg
 class LoadModule
 {
 public:
-    //default view box, if any.
-    float vx = 0;
-    float vy = 0;
-    float vw = 0;
-    float vh = 0;
     float w = 0, h = 0;                             //default image size
     ColorSpace cs = ColorSpace::Unsupported;        //must be clarified at open()
 

src/lib/tvgPicture.cpp

@@ -75,13 +75,6 @@ Result Picture::load(uint32_t* data, uint32_t w, uint32_t h, bool copy) noexcept
 }
 
 
-Result Picture::viewbox(float* x, float* y, float* w, float* h) const noexcept
-{
-    if (pImpl->viewbox(x, y, w, h)) return Result::Success;
-    return Result::InsufficientCondition;
-}
-
-
 Result Picture::size(float w, float h) noexcept
 {
     if (pImpl->size(w, h)) return Result::Success;

src/lib/tvgPictureImpl.h

@@ -181,16 +181,6 @@ struct Picture::Impl
         return ret;
     }
 
-    bool viewbox(float* x, float* y, float* w, float* h)
-    {
-        if (!loader) return false;
-        if (x) *x = loader->vx;
-        if (y) *y = loader->vy;
-        if (w) *w = loader->vw;
-        if (h) *h = loader->vh;
-        return true;
-    }
-
     bool size(float w, float h)
     {
         this->w = w;

src/loaders/svg/tvgSvgLoader.h

@@ -54,6 +54,10 @@ private:
     SvgViewFlag viewFlag = SvgViewFlag::None;
     AspectRatioAlign align = AspectRatioAlign::XMidYMid;
     AspectRatioMeetOrSlice meetOrSlice = AspectRatioMeetOrSlice::Meet;
+    float vx = 0;
+    float vy = 0;
+    float vw = 0;
+    float vh = 0;
 
     bool header();
     void clear();

test/capi/capiPicture.cpp

@@ -123,15 +123,6 @@ TEST_CASE("Load Svg Data in Picture", "[capiPicture]")
     REQUIRE(w == Approx(wNew).epsilon(0.0000001));
     REQUIRE(h == Approx(hNew).epsilon(0.0000001));
 
-
-    //Verify Position
-    float x, y;
-    REQUIRE(tvg_picture_get_viewbox(picture, &x, &y, &w, &h) == TVG_RESULT_SUCCESS);
-    REQUIRE(x == Approx(0).epsilon(0.0000001));
-    REQUIRE(y == Approx(0).epsilon(0.0000001));
-    REQUIRE(w == Approx(600).epsilon(0.0000001));
-    REQUIRE(h == Approx(600).epsilon(0.0000001));
-
     REQUIRE(tvg_paint_del(picture) == TVG_RESULT_SUCCESS);
 }