Hey Robert...
Here's an updated Style.cpp that has a proper operator==() method.
I found some bugs in it while working on caching Style and Bevel
objects...
Hope your workload isn't causing your head to explode... :)
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2010 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library 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
* OpenSceneGraph Public License for more details.
*/
#include <osgText/Style>
#include <osg/Notify>
#include <osg/io_utils>
using namespace osgText;
/////////////////////////////////////////////////////////////////////////////////////////
//
// Bevel
//
Bevel::Bevel()
{
_thickness = 0.02f;
flatBevel();
}
Bevel::Bevel(const Bevel& bevel, const osg::CopyOp& copyop):
osg::Object(bevel, copyop),
_thickness(bevel._thickness),
_vertices(bevel._vertices)
{
}
void Bevel::flatBevel(float width)
{
_vertices.clear();
if (width>0.5f) width = 0.5f;
_vertices.push_back(osg::Vec2(0.0f,0.0f));
_vertices.push_back(osg::Vec2(width,1.0f));
if (width<0.5f) _vertices.push_back(osg::Vec2(1-width,1.0f));
_vertices.push_back(osg::Vec2(1.0f,0.0f));
}
void Bevel::roundedBevel(float width, unsigned int numSteps)
{
_vertices.clear();
if (width>0.5f) width = 0.5f;
unsigned int i = 0;
for(; i<=numSteps; ++i)
{
float angle = float(osg::PI)*0.5f*(float(i)/float(numSteps));
_vertices.push_back( osg::Vec2((1.0f-cosf(angle))*width, sinf(angle)) );
}
// start the second half one into the curve if the width is half way across
i = width<0.5f ? 0 : 1;
for(; i<=numSteps; ++i)
{
float angle = float(osg::PI)*0.5f*(float(numSteps-i)/float(numSteps));
_vertices.push_back( osg::Vec2(1.0-(1.0f-cosf(angle))*width, sin(angle)) );
}
}
void Bevel::roundedBevel2(float width, unsigned int numSteps)
{
_vertices.clear();
if (width>0.5f) width = 0.5f;
float h = 0.1f;
float r = 1.0f-h;
_vertices.push_back(osg::Vec2(0.0,0.0));
unsigned int i = 0;
for(; i<=numSteps; ++i)
{
float angle = float(osg::PI)*0.5f*(float(i)/float(numSteps));
_vertices.push_back( osg::Vec2((1.0f-cosf(angle))*width, h + sinf(angle)*r) );
}
// start the second half one into the curve if the width is half way across
i = width<0.5f ? 0 : 1;
for(; i<=numSteps; ++i)
{
float angle = float(osg::PI)*0.5f*(float(numSteps-i)/float(numSteps));
_vertices.push_back( osg::Vec2(1.0-(1.0f-cosf(angle))*width, h + sin(angle)*r) );
}
_vertices.push_back(osg::Vec2(1.0,0.0));
}
void Bevel::print(std::ostream& fout)
{
OSG_NOTICE<<"print bevel"<<std::endl;
for(Vertices::iterator itr = _vertices.begin();
itr != _vertices.end();
++itr)
{
OSG_NOTICE<<" "<<*itr<<std::endl;
}
}
/////////////////////////////////////////////////////////////////////////////////////////
//
// Style
//
Style::Style():
_widthRatio(1.0f),
_thicknessRatio(0.0f),
_outlineRatio(0.0f),
_sampleDensity(1.0f)
{
}
Style::Style(const Style& style, const osg::CopyOp& copyop):
osg::Object(style,copyop),
_bevel(dynamic_cast<Bevel*>(copyop(style._bevel.get()))),
_widthRatio(style._widthRatio),
_thicknessRatio(style._thicknessRatio),
_outlineRatio(style._outlineRatio),
_sampleDensity(style._sampleDensity)
{
}
/// default Layout implementation used if no other is specified on TextNode
osg::ref_ptr<Style>& Style::getDefaultStyle()
{
static OpenThreads::Mutex s_DefaultStyleMutex;
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(s_DefaultStyleMutex);
static osg::ref_ptr<Style> s_defaultStyle = new Style;
return s_defaultStyle;
}
bool Style::operator == (const Style& rhs) const
{
if (&rhs==this) return true;
if (_bevel.valid())
{
if (!rhs._bevel) return false;
if (!(*_bevel == *rhs._bevel)) return false;
}
else
{
if (rhs._bevel.valid()) return false;
}
if (_widthRatio != rhs._widthRatio) return false;
if (_thicknessRatio != rhs._thicknessRatio) return false;
if (_outlineRatio != rhs._outlineRatio) return false;
if (_sampleDensity != rhs._sampleDensity) return false;
return true;
}
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