root/libcore/Shape.cpp

DEFINITIONS

1. pointInShape
2. display

// Shape.cpp: Shape DisplayObject implementation for Gnash.
// 
//   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010,
//   2011 Free Software Foundation, Inc
// 
// This program 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 3 of the License, or
// (at your option) any later version.
// 
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
//

#include "smart_ptr.h"
#include "Shape.h"
#include "Transform.h"

namespace gnash
{

bool
Shape::pointInShape(boost::int32_t x, boost::int32_t y) const
{
    SWFMatrix wm = getWorldMatrix(*this);
    wm.invert();
    point lp(x, y);
    wm.transform(lp);
    
    // FIXME: if the shape contains non-scaled strokes
    //        we can't rely on boundary itself for a quick
    //        way out. Bounds supposedly already include
    //        thickness, so we might keep a flag telling us
    //        whether *non_scaled* strokes are present
    //        and if not still use the boundary check.
    // NOTE: just skipping this test breaks a corner-case
    //       in DrawingApiTest (kind of a fill-leakage making
    //       the collision detection find you inside a self-crossing
    //       shape).
    if (_def) {
        if (!_def->bounds().point_test(lp.x, lp.y)) return false;
        return _def->pointTestLocal(lp.x, lp.y, wm);
    }
    assert(_shape.get());
    
    if (!_shape->getBounds().point_test(lp.x, lp.y)) return false;
    return _shape->pointTestLocal(lp.x, lp.y, wm);

}

void  
Shape::display(Renderer& renderer, const Transform& base)
{
    const Transform xform = base * transform();

    if (_def) _def->display(renderer, xform);
    else _shape->display(renderer, xform);
    clear_invalidated();
}

} // namespace gnash

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// mode: C++
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