libcore/Shape.cpp

   1 // Shape.cpp: Shape DisplayObject implementation for Gnash.
   2 //
   3 //   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Free Software
   4 //   Foundation, Inc
   5 //
   6 // This program is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 3 of the License, or
   9 // (at your option) any later version.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the Free Software
  18 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19 //
  20
  21 #include "smart_ptr.h"
  22 #include "Shape.h"
  23 #include "Transform.h"
  24
  25 namespace gnash
  26 {
  27
  28 bool
  29 Shape::pointInShape(boost::int32_t x, boost::int32_t y) const
  30 {
  31     SWFMatrix wm = getWorldMatrix(*this);
  32     wm.invert();
  33     point lp(x, y);
  34     wm.transform(lp);
  35
  36     // FIXME: if the shape contains non-scaled strokes
  37     //        we can't rely on boundary itself for a quick
  38     //        way out. Bounds supposedly already include
  39     //        thickness, so we might keep a flag telling us
  40     //        whether *non_scaled* strokes are present
  41     //        and if not still use the boundary check.
  42     // NOTE: just skipping this test breaks a corner-case
  43     //       in DrawingApiTest (kind of a fill-leakage making
  44     //       the collision detection find you inside a self-crossing
  45     //       shape).
  46     if (_def) {
  47         if (!_def->bounds().point_test(lp.x, lp.y)) return false;
  48         return _def->pointTestLocal(lp.x, lp.y, wm);
  49     }
  50     assert(_shape.get());
  51
  52     if (!_shape->getBounds().point_test(lp.x, lp.y)) return false;
  53     return _shape->pointTestLocal(lp.x, lp.y, wm);
  54
  55 }
  56
  57 void
  58 Shape::display(Renderer& renderer, const Transform& base)
  59 {
  60     const Transform xform = base * transform();
  61
  62     if (_def) _def->display(renderer, xform);
  63     else _shape->display(renderer, xform);
  64     clear_invalidated();
  65 }
  66
  67 } // namespace gnash
  68
  69 // Local Variables:
  70 // mode: C++
  71 // indent-tabs-mode: t
  72 // End: