Moved Style and Bevel classes out into their own include/osgText/Style header.

Introduced GlyphGeometry class for handling the geometry data for rendering 3D text
This commit is contained in:
Robert Osfield
2010-09-24 12:57:55 +00:00
parent d9a133476a
commit c006c75615
8 changed files with 362 additions and 212 deletions

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@@ -246,5 +246,4 @@ public:
}
#endif

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@@ -1,4 +1,4 @@
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
/* -*-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
@@ -25,6 +25,7 @@
#include <osgText/Export>
#include <osgText/KerningType>
#include <osgText/Style>
#include <OpenThreads/Mutex>
@@ -33,6 +34,7 @@ namespace osgText {
class Font;
class Text;
class Glyph3D;
class GlyphGeometry;
class GlyphTexture;
class OSGTEXT_EXPORT Glyph : public osg::Image
@@ -95,6 +97,50 @@ protected:
};
class OSGTEXT_EXPORT GlyphGeometry : public osg::Referenced
{
public:
GlyphGeometry();
void setup(const Glyph* glyph, const Style* style);
bool match(const Style* style) const;
osg::Geode* getGeode() const { return _geode.get(); }
osg::Geometry* getGeometry() const { return _geometry.get(); }
/** Set the VertexArray of the glyph. */
void setVertexArray(osg::Vec3Array * va) { _vertices = va; }
/** Get the VertexArray of the glyph. */
osg::Vec3Array * getVertexArray() const { return _vertices.get(); }
/** Set the VertexArray of the glyph. */
void setNormalArray(osg::Vec3Array* na) { _normals = na; }
/** Get the NormalArray for the wall face. */
osg::Vec3Array* getNormalArray() const { return _normals.get(); }
/** Get the PrimitiveSetList for the front face. */
osg::Geometry::PrimitiveSetList& getFrontPrimitiveSetList() { return _frontPrimitiveSetList; }
/** Get the PrimitiveSetList for the wall face. */
osg::Geometry::PrimitiveSetList& getWallPrimitiveSetList() { return _wallPrimitiveSetList; }
/** Get et the PrimitiveSetList for the back face. */
osg::Geometry::PrimitiveSetList& getBackPrimitiveSetList() { return _backPrimitiveSetList; }
protected:
osg::ref_ptr<Style> _style;
osg::ref_ptr<osg::Geode> _geode;
osg::ref_ptr<osg::Geometry> _geometry;
osg::ref_ptr<osg::Vec3Array> _vertices;
osg::ref_ptr<osg::Vec3Array> _normals;
osg::Geometry::PrimitiveSetList _frontPrimitiveSetList;
osg::Geometry::PrimitiveSetList _wallPrimitiveSetList;
osg::Geometry::PrimitiveSetList _backPrimitiveSetList;
};
class OSGTEXT_EXPORT Glyph3D : public osg::Referenced
{
public:
@@ -150,17 +196,18 @@ public:
osg::Vec3Array * getNormalArray() { return _normalArray.get(); }
float getHorizontalWidth() { return (-_horizontalBearing.x() + _horizontalAdvance); }
float getHorizontalHeight() { return (-_horizontalBearing.y() + _bb.yMax()); }
float getVerticalWidth() { return (-_verticalBearing.x() + _bb.xMax()); }
float getVerticalHeight() { return (-_verticalBearing.y() + _verticalAdvance); }
float getHorizontalWidth() const { return (-_horizontalBearing.x() + _horizontalAdvance); }
float getHorizontalHeight() const { return (-_horizontalBearing.y() + _bb.yMax()); }
float getVerticalWidth() const { return (-_verticalBearing.x() + _bb.xMax()); }
float getVerticalHeight() const { return (-_verticalBearing.y() + _verticalAdvance); }
void setWidth(float width) { _width = width; }
float getWidth() { return _width; }
float getWidth() const { return _width; }
void setHeight(float height) { _height = height; }
float getHeight() { return _height; }
float getHeight() const { return _height; }
GlyphGeometry* getGlyphGeometry(Style* style);
protected:
@@ -193,6 +240,9 @@ protected:
osg::ref_ptr<osg::Vec3Array> _rawVertexArray;
osg::Geometry::PrimitiveSetList _rawFacePrimitiveSetList;
typedef std::list< osg::ref_ptr<GlyphGeometry> > GlyphGeometries;
GlyphGeometries _glyphGeometries;
};

112
include/osgText/Style Normal file
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@@ -0,0 +1,112 @@
/* -*-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.
*/
#ifndef OSGTEXT_STYLE
#define OSGTEXT_STYLE 1
#include <osg/Object>
#include <osg/Vec2>
#include <osgText/Export>
#include <vector>
namespace osgText
{
class OSGTEXT_EXPORT Bevel : public osg::Object
{
public:
Bevel();
Bevel(const Bevel& bevel, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgText, Bevel)
bool operator == (const Bevel& rhs) const
{
if (_thickness != rhs._thickness) return false;
return _vertices==rhs._vertices;
}
void setBevelThickness(float thickness) { _thickness = thickness; }
float getBevelThickness() const { return _thickness; }
void flatBevel(float width=0.25f);
void roundedBevel(float width=0.5f, unsigned int numSteps=10);
void roundedBevel2(float width=0.5f, unsigned int numSteps=10);
typedef std::vector<osg::Vec2> Vertices;
void setVertices(const Vertices& vertices) { _vertices = vertices; }
Vertices& getVertices() { return _vertices; }
const Vertices& getVertices() const { return _vertices; }
void print(std::ostream& fout);
protected:
float _thickness;
Vertices _vertices;
};
class OSGTEXT_EXPORT Style : public osg::Object
{
public:
Style();
Style(const Style& style, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgText, Style)
/// default Layout implementation used if no other is specified on TextNode
static osg::ref_ptr<Style>& getDefaultStyle();
bool operator == (const Style& style) const;
/// NULL is no bevel
void setBevel(Bevel* bevel) { _bevel = bevel; }
const Bevel* getBevel() const { return _bevel.get(); }
/// 1 is the default width of the text
void setWidthRatio(float widthRatio) { _widthRatio = widthRatio; }
float getWidthRatio() const { return _widthRatio; }
/// 0 is 2D text
void setThicknessRatio(float thicknessRatio) { _thicknessRatio = thicknessRatio; }
float getThicknessRatio() const { return _thicknessRatio; }
/// 0 is off
void setOutlineRatio(float outlineRatio) { _outlineRatio = outlineRatio; }
float getOutlineRatio() const { return _outlineRatio; }
/// 1.0 is default number of samples
void setSampleDensity(float sd) { _sampleDensity = sd; }
float getSampleDensity() const { return _sampleDensity; }
protected:
osg::ref_ptr<Bevel> _bevel;
float _widthRatio;
float _thicknessRatio;
float _outlineRatio;
float _sampleDensity;
};
}
#endif

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@@ -21,88 +21,13 @@
#include <osgText/Font>
#include <osgText/String>
#include <osgText/Glyph>
#include <osgText/Style>
namespace osgText {
// forward declare
class TextNode;
class Glyph;
class OSGTEXT_EXPORT Bevel : public osg::Object
{
public:
Bevel();
Bevel(const Bevel& bevel, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgText, Bevel)
void setBevelThickness(float thickness) { _thickness = thickness; }
float getBevelThickness() const { return _thickness; }
void flatBevel(float width=0.25f);
void roundedBevel(float width=0.5f, unsigned int numSteps=10);
void roundedBevel2(float width=0.5f, unsigned int numSteps=10);
typedef std::vector<osg::Vec2> Vertices;
void setVertices(const Vertices& vertices) { _vertices = vertices; }
Vertices& getVertices() { return _vertices; }
const Vertices& getVertices() const { return _vertices; }
void print(std::ostream& fout);
protected:
float _thickness;
Vertices _vertices;
};
class OSGTEXT_EXPORT Style : public osg::Object
{
public:
Style();
Style(const Style& style, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgText, Style)
/// default Layout implementation used if no other is specified on TextNode
static osg::ref_ptr<Style>& getDefaultStyle();
/// NULL is no bevel
void setBevel(Bevel* bevel) { _bevel = bevel; }
const Bevel* getBevel() const { return _bevel.get(); }
/// 1 is the default width of the text
void setWidthRatio(float widthRatio) { _widthRatio = widthRatio; }
float getWidthRatio() const { return _widthRatio; }
/// 0 is 2D text
void setThicknessRatio(float thicknessRatio) { _thicknessRatio = thicknessRatio; }
float getThicknessRatio() const { return _thicknessRatio; }
/// 0 is off
void setOutlineRatio(float outlineRatio) { _outlineRatio = outlineRatio; }
float getOutlineRatio() const { return _outlineRatio; }
/// 1.0 is default number of samples
void setSampleDensity(float sd) { _sampleDensity = sd; }
float getSampleDensity() const { return _sampleDensity; }
protected:
osg::ref_ptr<Bevel> _bevel;
float _widthRatio;
float _thicknessRatio;
float _outlineRatio;
float _sampleDensity;
};
class OSGTEXT_EXPORT Layout : public osg::Object
{