Click here to Skip to main content
15,896,538 members
Articles / Mobile Apps / Android

Android ImageView and Drawable with SVG Support

Rate me:
Please Sign up or sign in to vote.
4.75/5 (11 votes)
14 Dec 2010CPOL3 min read 155.5K   5.7K   33  
This article introduces custom classes SvgImageView and SvgDrawable which allow to use SVG image just like any other image.
//----------------------------------------------------------------------------
// Anti-Grain Geometry (AGG) - Version 2.5
// A high quality rendering engine for C++
// Copyright (C) 2002-2006 Maxim Shemanarev
// Contact: mcseem@antigrain.com
//          mcseemagg@yahoo.com
//          http://antigrain.com
// 
// AGG is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// 
// AGG is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with AGG; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
// MA 02110-1301, USA.
//----------------------------------------------------------------------------
//
// Horizontal span interpolator for use with an arbitrary transformer
// The efficiency highly depends on the operations done in the transformer
//
//----------------------------------------------------------------------------

#ifndef AGG_SPAN_INTERPOLATOR_TRANS_INCLUDED
#define AGG_SPAN_INTERPOLATOR_TRANS_INCLUDED

#include "agg_basics.h"

namespace agg
{
    //=================================================span_interpolator_trans
    template<class Transformer, unsigned SubpixelShift = 8> 
    class span_interpolator_trans
    {
    public:
        typedef Transformer trans_type;
        enum subpixel_scale_e
        {
            subpixel_shift = SubpixelShift,
            subpixel_scale = 1 << subpixel_shift
        };

        //--------------------------------------------------------------------
        span_interpolator_trans() {}
        span_interpolator_trans(const trans_type& trans) : m_trans(&trans) {}
        span_interpolator_trans(const trans_type& trans,
                                double x, double y, unsigned) :
            m_trans(&trans)
        {
            begin(x, y, 0);
        }

        //----------------------------------------------------------------
        const trans_type& transformer() const { return *m_trans; }
        void transformer(const trans_type& trans) { m_trans = &trans; }

        //----------------------------------------------------------------
        void begin(double x, double y, unsigned)
        {
            m_x = x;
            m_y = y;
            m_trans->transform(&x, &y);
            m_ix = iround(x * subpixel_scale);
            m_iy = iround(y * subpixel_scale);
        }

        //----------------------------------------------------------------
        void operator++()
        {
            m_x += 1.0;
            double x = m_x;
            double y = m_y;
            m_trans->transform(&x, &y);
            m_ix = iround(x * subpixel_scale);
            m_iy = iround(y * subpixel_scale);
        }

        //----------------------------------------------------------------
        void coordinates(int* x, int* y) const
        {
            *x = m_ix;
            *y = m_iy;
        }

    private:
        const trans_type* m_trans;
        double            m_x;
        double            m_y;
        int               m_ix;
        int               m_iy;
    };

}

#endif

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Russian Federation Russian Federation
This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do with programming.

Comments and Discussions