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Unified more of the 2D and 3D text setup, fixed bugs in Text3D setup

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which address the problems of black 3D text and the kerning causing problems with font positioning.
This commit is contained in:
Robert Osfield 2011-01-11 11:39:31 +00:00
parent d59ac54b31
commit 74cf034404
9 changed files with 174 additions and 247 deletions
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32
include/osgText/Glyph
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@ -49,6 +49,12 @@ public:
unsigned int getGlyphCode() const { return _glyphCode; }
void setWidth(float width) { _width = width; }
float getWidth() const { return _width; }
void setHeight(float height) { _height = height; }
float getHeight() const { return _height; }
void setHorizontalBearing(const osg::Vec2& bearing);
const osg::Vec2& getHorizontalBearing() const;
@ -84,6 +90,9 @@ protected:
Font* _font;
unsigned int _glyphCode;
float _width;
float _height;
osg::Vec2 _horizontalBearing;
float _horizontalAdvance;
@ -159,6 +168,12 @@ public:
unsigned int getGlyphCode() const { return _glyphCode; }
void setWidth(float width) { _width = width; }
float getWidth() const { return _width; }
void setHeight(float height) { _height = height; }
float getHeight() const { return _height; }
void setHorizontalBearing(const osg::Vec2& bearing) { _horizontalBearing=bearing; }
const osg::Vec2 & getHorizontalBearing() const { return _horizontalBearing; }
@ -187,18 +202,6 @@ public:
osg::Geometry::PrimitiveSetList & getRawFacePrimitiveSetList() { return _rawFacePrimitiveSetList; }
const osg::Geometry::PrimitiveSetList & getRawFacePrimitiveSetList() const { return _rawFacePrimitiveSetList; }
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() const { return _width; }
void setHeight(float height) { _height = height; }
float getHeight() const { return _height; }
GlyphGeometry* getGlyphGeometry(const Style* style);
protected:
@ -208,6 +211,9 @@ protected:
Font* _font;
unsigned int _glyphCode;
float _width;
float _height;
osg::Vec2 _horizontalBearing;
float _horizontalAdvance;
@ -217,8 +223,6 @@ protected:
osg::BoundingBox _bb;
// osg::Vec2 _advance;
float _width;
float _height;
osg::ref_ptr<osg::Vec3Array> _rawVertexArray;
osg::Geometry::PrimitiveSetList _rawFacePrimitiveSetList;

9
include/osgText/Text
View File

@ -37,6 +37,15 @@ public:
virtual const char* className() const { return "Text"; }
virtual const char* libraryName() const { return "osgText"; }
virtual void setFont(Font* font=0) { setFont(osg::ref_ptr<Font>(font)); };
/** Set the Font to use to render the text.*/
virtual void setFont(osg::ref_ptr<Font> font);
/** Set the font, loaded from the specified front file, to use to render the text,
* setFont("") sets the use of the default font.
* See the osgText::readFontFile function for how the font file will be located. */
virtual void setFont(const std::string& fontfile) { TextBase::setFont(fontfile); }
/**
* Turns off writing to the depth buffer when rendering text. This only affects text

6
include/osgText/TextBase
View File

@ -41,15 +41,15 @@ public:
/** Set the Font to use to render the text.
* setFont(0) sets the use of the default font.*/
inline void setFont(Font* font=0) { setFont(osg::ref_ptr<Font>(font)); };
virtual void setFont(Font* font=0) { setFont(osg::ref_ptr<Font>(font)); };
/** Set the Font to use to render the text.*/
void setFont(osg::ref_ptr<Font> font);
virtual void setFont(osg::ref_ptr<Font> font);
/** Set the font, loaded from the specified front file, to use to render the text,
* setFont("") sets the use of the default font.
* See the osgText::readFontFile function for how the font file will be located. */
void setFont(const std::string& fontfile);
virtual void setFont(const std::string& fontfile);
/** Get the font. Return 0 if default is being used.*/
const Font* getFont() const { return _font.get(); }

128
src/osgPlugins/freetype/FreeTypeFont.cpp
View File

@ -205,8 +205,7 @@ FreeTypeFont::FreeTypeFont(const std::string& filename, FT_Face face, unsigned i
_filename(filename),
_buffer(0),
_face(face),
_flags(flags),
_freetype_scale(1.0f)
_flags(flags)
{
init();
}
@ -216,8 +215,7 @@ FreeTypeFont::FreeTypeFont(FT_Byte* buffer, FT_Face face, unsigned int flags):
_filename(""),
_buffer(buffer),
_face(face),
_flags(flags),
_freetype_scale(1.0f)
_flags(flags)
{
init();
}
@ -250,60 +248,14 @@ FreeTypeFont::~FreeTypeFont()
void FreeTypeFont::init()
{
FT_Error _error;
#if 0
_error = FT_Set_Pixel_Sizes(_face, 32, 32);
if (_error)
{
OSG_NOTICE << "FreeTypeFont3D: set pixel sizes failed ..." << std::endl;
return;
}
#endif
FT_Set_Char_Size( _face, 64*64, 64*64, 600, 600);
int glyphIndex = FT_Get_Char_Index( _face, 'M' );
_error = FT_Load_Glyph( _face, glyphIndex, FT_LOAD_DEFAULT );
if (_error)
{
OSG_NOTICE << "FreeTypeFont3D: initial glyph load failed ..." << std::endl;
return;
}
if (_face->glyph->format != FT_GLYPH_FORMAT_OUTLINE)
{
OSG_NOTICE << "FreeTypeFont3D: not a vector font" << std::endl;
return;
}
{
FreeType::Char3DInfo char3d(10);
FT_Outline outline = _face->glyph->outline;
FT_Outline_Funcs funcs;
funcs.conic_to = (FT_Outline_ConicToFunc)&FreeType::conicTo;
funcs.line_to = (FT_Outline_LineToFunc)&FreeType::lineTo;
funcs.cubic_to = (FT_Outline_CubicToFunc)&FreeType::cubicTo;
funcs.move_to = (FT_Outline_MoveToFunc)&FreeType::moveTo;
funcs.shift = 0;
funcs.delta = 0;
_error = FT_Outline_Decompose(&outline,&funcs,&char3d);
if (_error)
{
OSG_NOTICE << "FreeTypeFont3D: - outline decompose failed ..." << std::endl;
return;
}
FT_BBox bb;
FT_Outline_Get_BBox(&outline,&bb);
long ymin = ft_floor( bb.yMin );
long ymax = ft_ceiling( bb.yMax );
double height = double(ymax - ymin)/64.0;
// long xmin = ft_floor( bb.xMin );
// long xmax = ft_ceiling( bb.xMax );
// double width = (xmax - xmin)/64.0;
_freetype_scale = 1.0f/height;
}
_currentRes.first = 32;
_currentRes.second = 32;
}
void FreeTypeFont::setFontResolution(const osgText::FontResolution& fontSize)
@ -347,6 +299,8 @@ osgText::Glyph* FreeTypeFont::getGlyph(const osgText::FontResolution& fontRes, u
setFontResolution(fontRes);
float coord_scale = 1.0f/(float(_currentRes.second)*64.0f);
//
// GT: fix for symbol fonts (i.e. the Webdings font) as the wrong character are being
// returned, for symbol fonts in windows (FT_ENCONDING_MS_SYMBOL in freetype) the correct
@ -432,17 +386,23 @@ osgText::Glyph* FreeTypeFont::getGlyph(const osgText::FontResolution& fontRes, u
FT_Glyph_Metrics* metrics = &(_face->glyph->metrics);
#if 0
float coord_scale = _freetype_scale/64.0f;
#else
float coord_scale = 1.0f/64.0f;
#endif
glyph->setWidth((float)metrics->width * coord_scale);
glyph->setHeight((float)metrics->height * coord_scale);
glyph->setHorizontalBearing(osg::Vec2((float)metrics->horiBearingX * coord_scale,(float)(metrics->horiBearingY-metrics->height) * coord_scale)); // bottom left.
glyph->setHorizontalAdvance((float)metrics->horiAdvance * coord_scale);
glyph->setVerticalBearing(osg::Vec2((float)metrics->vertBearingX * coord_scale,(float)(metrics->vertBearingY-metrics->height) * coord_scale)); // top middle.
glyph->setVerticalAdvance((float)metrics->vertAdvance * coord_scale);
#if 0
OSG_NOTICE<<"getGlyph("<<charcode<<", "<<char(charcode)<<")"<<std::endl;
OSG_NOTICE<<" height="<<glyph->getHeight()<<std::endl;
OSG_NOTICE<<" width="<<glyph->getWidth()<<std::endl;
OSG_NOTICE<<" horizontalBearing="<<glyph->getHorizontalBearing()<<std::endl;
OSG_NOTICE<<" horizontalAdvance="<<glyph->getHorizontalAdvance()<<std::endl;
OSG_NOTICE<<" verticalBearing="<<glyph->getHorizontalBearing()<<std::endl;
OSG_NOTICE<<" verticalAdvance="<<glyph->getVerticalAdvance()<<std::endl;
#endif
// cout << " in getGlyph() implementation="<<this<<" "<<_filename<<" facade="<<_facade<<endl;
return glyph.release();
@ -453,9 +413,6 @@ osgText::Glyph3D * FreeTypeFont::getGlyph3D(unsigned int charcode)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(FreeTypeLibrary::instance()->getMutex());
FT_Set_Char_Size( _face, 64*64, 64*64, 600, 600);
_currentRes = osgText::FontResolution(0,0);
//
// GT: fix for symbol fonts (i.e. the Webdings font) as the wrong character are being
// returned, for symbol fonts in windows (FT_ENCONDING_MS_SYMBOL in freetype) the correct
@ -483,7 +440,9 @@ osgText::Glyph3D * FreeTypeFont::getGlyph3D(unsigned int charcode)
return 0;
}
float coord_scale = _freetype_scale/64.0f;
//float coord_scale = _freetype_scale/64.0f;
//float coord_scale = (1.0f/float(fontDPI))/64.0f;
float coord_scale = 1.0f/(float(_currentRes.second)*64.0f);
// ** init FreeType to describe the glyph
FreeType::Char3DInfo char3d(_facade->getNumberCurveSamples());
@ -519,36 +478,39 @@ osgText::Glyph3D * FreeTypeFont::getGlyph3D(unsigned int charcode)
}
// ** save vertices and PrimitiveSetList of each face in the Glyph3D PrimitiveSet face list
osg::ref_ptr<osgText::Glyph3D> glyph3D = new osgText::Glyph3D(_facade, charcode);
osg::ref_ptr<osgText::Glyph3D> glyph = new osgText::Glyph3D(_facade, charcode);
// copy the raw primitive set list before we tessellate it.
glyph3D->getRawFacePrimitiveSetList() = rawPrimitives;
glyph3D->setRawVertexArray(rawVertices.get());
glyph->getRawFacePrimitiveSetList() = rawPrimitives;
glyph->setRawVertexArray(rawVertices.get());
FT_Glyph_Metrics* metrics = &(_face->glyph->metrics);
glyph3D->setHorizontalBearing(osg::Vec2((float)metrics->horiBearingX * coord_scale,(float)(metrics->horiBearingY-metrics->height) * coord_scale)); // bottom left.
glyph3D->setHorizontalAdvance((float)metrics->horiAdvance * coord_scale);
glyph3D->setVerticalBearing(osg::Vec2((float)metrics->vertBearingX * coord_scale,(float)(metrics->vertBearingY-metrics->height) * coord_scale)); // top middle.
glyph3D->setVerticalAdvance((float)metrics->vertAdvance * coord_scale);
glyph->setWidth((float)metrics->width * coord_scale);
glyph->setHeight((float)metrics->height * coord_scale);
glyph->setHorizontalBearing(osg::Vec2((float)metrics->horiBearingX * coord_scale,(float)(metrics->horiBearingY-metrics->height) * coord_scale)); // bottom left.
glyph->setHorizontalAdvance((float)metrics->horiAdvance * coord_scale);
glyph->setVerticalBearing(osg::Vec2((float)metrics->vertBearingX * coord_scale,(float)(metrics->vertBearingY-metrics->height) * coord_scale)); // top middle.
glyph->setVerticalAdvance((float)metrics->vertAdvance * coord_scale);
glyph3D->setWidth((float)metrics->width * coord_scale);
glyph3D->setHeight((float)metrics->height * coord_scale);
#if 0
OSG_NOTICE<<"getGlyph3D("<<charcode<<", "<<char(charcode)<<")"<<std::endl;
OSG_NOTICE<<" height="<<glyph->getHeight()<<std::endl;
OSG_NOTICE<<" width="<<glyph->getWidth()<<std::endl;
OSG_NOTICE<<" horizontalBearing="<<glyph->getHorizontalBearing()<<std::endl;
OSG_NOTICE<<" horizontalAdvance="<<glyph->getHorizontalAdvance()<<std::endl;
OSG_NOTICE<<" verticalBearing="<<glyph->getHorizontalBearing()<<std::endl;
OSG_NOTICE<<" verticalAdvance="<<glyph->getVerticalAdvance()<<std::endl;
#endif
FT_BBox ftbb;
FT_Outline_Get_BBox(&outline, &ftbb);
osg::BoundingBox bb(float(ftbb.xMin) * coord_scale, float(ftbb.yMin) * coord_scale, 0.0f, float(ftbb.xMax) * coord_scale, float(ftbb.yMax) * coord_scale, 0.0f);
long xmin = ft_floor( ftbb.xMin );
long xmax = ft_ceiling( ftbb.xMax );
long ymin = ft_floor( ftbb.yMin );
long ymax = ft_ceiling( ftbb.yMax );
glyph->setBoundingBox(bb);
osg::BoundingBox bb(xmin * coord_scale, ymin * coord_scale, 0.0f, xmax * coord_scale, ymax * coord_scale, 0.0f);
glyph3D->setBoundingBox(bb);
return glyph3D.release();
return glyph.release();
}
osg::Vec2 FreeTypeFont::getKerning(unsigned int leftcharcode,unsigned int rightcharcode, osgText::KerningType kerningType)
@ -578,7 +540,11 @@ osg::Vec2 FreeTypeFont::getKerning(unsigned int leftcharcode,unsigned int rightc
return osg::Vec2(0.0f,0.0f);
}
return osg::Vec2((float)kerning.x/64.0f,(float)kerning.y/64.0f);
//float coord_scale = _freetype_scale/64.0f;
//float coord_scale = 1.0f/64.0f;
float coord_scale = 1.0f/(float(_currentRes.second)*64.0f);
return osg::Vec2((float)kerning.x*coord_scale,(float)kerning.y*coord_scale);
}
bool FreeTypeFont::hasVertical() const

1
src/osgPlugins/freetype/FreeTypeFont.h
View File

@ -55,7 +55,6 @@ protected:
FT_Byte* _buffer;
FT_Face _face;
unsigned int _flags;
float _freetype_scale;
};
#endif

4
src/osgText/Glyph.cpp
View File

@ -387,6 +387,8 @@ void GlyphTexture::resizeGLObjectBuffers(unsigned int maxSize)
Glyph::Glyph(Font* font, unsigned int glyphCode):
_font(font),
_glyphCode(glyphCode),
_width(1.0f),
_height(1.0f),
_horizontalBearing(0.0f,0.f),
_horizontalAdvance(0.f),
_verticalBearing(0.0f,0.f),
@ -477,6 +479,8 @@ Glyph3D::Glyph3D(Font* font, unsigned int glyphCode):
osg::Referenced(true),
_font(font),
_glyphCode(glyphCode),
_width(1.0f),
_height(1.0f),
_horizontalBearing(0,0),
_horizontalAdvance(0),
_verticalBearing(0,0),

47
src/osgText/Text.cpp
View File

@ -64,6 +64,21 @@ Text::~Text()
{
}
void Text::setFont(osg::ref_ptr<Font> font)
{
if (_font==font) return;
osg::StateSet* previousFontStateSet = _font.valid() ? _font->getStateSet() : Font::getDefaultFont()->getStateSet();
osg::StateSet* newFontStateSet = font.valid() ? font->getStateSet() : Font::getDefaultFont()->getStateSet();
if (getStateSet() == previousFontStateSet)
{
setStateSet( newFontStateSet );
}
TextBase::setFont(font);
}
Font* Text::getActiveFont()
{
@ -80,7 +95,7 @@ String::iterator Text::computeLastCharacterOnLine(osg::Vec2& cursor, String::ite
Font* activefont = getActiveFont();
if (!activefont) return last;
float hr = _characterHeight/getFontHeight();
float hr = _characterHeight;
float wr = hr/getCharacterAspectRatio();
bool kerning = true;
@ -101,12 +116,7 @@ String::iterator Text::computeLastCharacterOnLine(osg::Vec2& cursor, String::ite
if (glyph)
{
float width = (float)(glyph->s()) * wr;
//float height = (float)(glyph->t()) * hr;
#ifdef TREES_CODE_FOR_MAKING_SPACES_EDITABLE
if (width == 0.0f) width = glyph->getHorizontalAdvance() * wr;
//if (height == 0.0f) height = glyph->getVerticalAdvance() * hr;
#endif
float width = (float)(glyph->getWidth()) * wr;
if (_layout==RIGHT_TO_LEFT)
{
@ -167,7 +177,7 @@ String::iterator Text::computeLastCharacterOnLine(osg::Vec2& cursor, String::ite
case RIGHT_TO_LEFT: break; // nop.
}
previous_charcode = charcode;
previous_charcode = charcode;
}
@ -243,7 +253,7 @@ void Text::computeGlyphRepresentation()
unsigned int lineNumber = 0;
float hr = _characterHeight/getFontHeight();
float hr = _characterHeight;
float wr = hr/getCharacterAspectRatio();
for(String::iterator itr=_text.begin();
@ -369,13 +379,8 @@ void Text::computeGlyphRepresentation()
Glyph* glyph = activefont->getGlyph(_fontSize, charcode);
if (glyph)
{
float width = (float)(glyph->s()) * wr;
float height = (float)(glyph->t()) * hr;
#ifdef TREES_CODE_FOR_MAKING_SPACES_EDITABLE
if (width == 0.0f) width = glyph->getHorizontalAdvance() * wr;
if (height == 0.0f) height = glyph->getVerticalAdvance() * hr;
#endif
float width = (float)(glyph->getWidth()) * wr;
float height = (float)(glyph->getHeight()) * hr;
if (_layout==RIGHT_TO_LEFT)
{
@ -421,10 +426,12 @@ void Text::computeGlyphRepresentation()
osg::Vec2 mintc = glyph->getMinTexCoord();
osg::Vec2 maxtc = glyph->getMaxTexCoord();
osg::Vec2 vDiff = maxtc - mintc;
float fHorizTCMargin = 1.0f / glyph->getTexture()->getTextureWidth();
float fVertTCMargin = 1.0f / glyph->getTexture()->getTextureHeight();
float fHorizQuadMargin = vDiff.x() == 0.0f ? 0.0f : width * fHorizTCMargin / vDiff.x();
float fVertQuadMargin = vDiff.y() == 0.0f ? 0.0f : height * fVertTCMargin / vDiff.y();
mintc.x() -= fHorizTCMargin;
mintc.y() -= fVertTCMargin;
maxtc.x() += fHorizTCMargin;
@ -1203,9 +1210,9 @@ void Text::drawImplementation(osg::State& state, const osg::Vec4& colorMultiplie
state.applyMode(GL_BLEND,true);
#if 1
state.applyTextureMode(0,GL_TEXTURE_2D,true);
state.applyTextureMode(0,GL_TEXTURE_2D,osg::StateAttribute::ON);
#else
state.applyTextureMode(0,GL_TEXTURE_2D,false);
state.applyTextureMode(0,GL_TEXTURE_2D,osg::StateAttribute::OFF);
#endif
#if defined(OSG_GL_FIXED_FUNCTION_AVAILABLE)
state.applyTextureAttribute(0,getActiveFont()->getTexEnv());
@ -1342,9 +1349,9 @@ void Text::drawImplementation(osg::State& state, const osg::Vec4& colorMultiplie
}
#if 1
state.applyTextureMode(0,GL_TEXTURE_2D,true);
state.applyTextureMode(0,GL_TEXTURE_2D,osg::StateAttribute::ON);
#else
state.applyTextureMode(0,GL_TEXTURE_2D,false);
state.applyTextureMode(0,GL_TEXTURE_2D,osg::StateAttribute::OFF);
#endif
#if defined(OSG_GL_FIXED_FUNCTION_AVAILABLE)
state.applyTextureAttribute(0,getActiveFont()->getTexEnv());

182
src/osgText/Text3D.cpp
View File

@ -124,7 +124,7 @@ String::iterator Text3D::computeLastCharacterOnLine(osg::Vec2& cursor, String::i
float maximumWidth = _maximumWidth;
float hr = 1.0f;
float wr = 1.0f/getCharacterAspectRatio();
float wr = 1.0f;
for(bool outOfSpace=false;lastChar!=last;++lastChar)
{
@ -140,76 +140,53 @@ String::iterator Text3D::computeLastCharacterOnLine(osg::Vec2& cursor, String::i
{
const osg::BoundingBox & bb = glyph->getBoundingBox();
if (_layout==RIGHT_TO_LEFT)
{
cursor.x() -= glyph->getHorizontalAdvance() * wr;
}
// adjust cursor position w.r.t any kerning.
if (previous_charcode)
if (kerning && previous_charcode)
{
if (_layout == RIGHT_TO_LEFT)
switch(_layout)
{
cursor.x() -= glyph->getHorizontalAdvance() * wr;
}
if (kerning)
{
switch (_layout)
{
case LEFT_TO_RIGHT:
{
osg::Vec2 delta(_font->getKerning(previous_charcode,charcode,_kerningType));
cursor.x() += delta.x() * wr;
cursor.y() += delta.y() * hr;
break;
}
case RIGHT_TO_LEFT:
{
osg::Vec2 delta(_font->getKerning(charcode,previous_charcode,_kerningType));
cursor.x() -= delta.x() * wr;
cursor.y() -= delta.y() * hr;
break;
}
case VERTICAL:
break; // no kerning when vertical.
}
case LEFT_TO_RIGHT:
{
osg::Vec2 delta(_font->getKerning(previous_charcode,charcode,_kerningType));
cursor.x() += delta.x() * wr;
cursor.y() += delta.y() * hr;
break;
}
case RIGHT_TO_LEFT:
{
osg::Vec2 delta(_font->getKerning(charcode,previous_charcode,_kerningType));
cursor.x() -= delta.x() * wr;
cursor.y() -= delta.y() * hr;
break;
}
case VERTICAL:
break; // no kerning when vertical.
}
}
else
{
switch (_layout)
{
case LEFT_TO_RIGHT:
{
cursor.x() -= glyph->getHorizontalBearing().x() * wr;
break;
}
case RIGHT_TO_LEFT:
{
cursor.x() -= bb.xMax() * wr;
break;
}
case VERTICAL:
break;
}
}
osg::Vec2 local = cursor;
switch(_layout)
{
case LEFT_TO_RIGHT:
{
if (maximumWidth>0.0f && cursor.x()+bb.xMax()>maximumWidth) outOfSpace=true;
if(maximumHeight>0.0f && cursor.y()<-maximumHeight) outOfSpace=true;
if (maximumWidth>0.0f && local.x()+bb.xMax()>maximumWidth) outOfSpace=true;
if(maximumHeight>0.0f && local.y()<-maximumHeight) outOfSpace=true;
break;
}
case RIGHT_TO_LEFT:
{
if (maximumWidth>0.0f && cursor.x()+bb.xMin()<-maximumWidth) outOfSpace=true;
if(maximumHeight>0.0f && cursor.y()<-maximumHeight) outOfSpace=true;
if (maximumWidth>0.0f && local.x()+bb.xMin()<-maximumWidth) outOfSpace=true;
if(maximumHeight>0.0f && local.y()<-maximumHeight) outOfSpace=true;
break;
}
case VERTICAL:
if (maximumHeight>0.0f && cursor.y()<-maximumHeight) outOfSpace=true;
if (maximumHeight>0.0f && local.y()<-maximumHeight) outOfSpace=true;
break;
}
@ -287,7 +264,7 @@ void Text3D::computeGlyphRepresentation()
float hr = 1.0f;
float wr = 1.0f/getCharacterAspectRatio();
float wr = 1.0f;
osg::Vec2 startOfLine_coords(0.0f,0.0f);
osg::Vec2 cursor(startOfLine_coords);
@ -300,8 +277,6 @@ void Text3D::computeGlyphRepresentation()
unsigned int lineNumber = 0;
for(String::iterator itr=_text.begin(); itr!=_text.end(); )
{
_textRenderInfo.resize(lineNumber + 1);
@ -329,70 +304,37 @@ void Text3D::computeGlyphRepresentation()
{
const osg::BoundingBox & bb = glyph->getBoundingBox();
// adjust cursor position w.r.t any kerning.
if (previous_charcode)
if (_layout==RIGHT_TO_LEFT)
{
if (_layout == RIGHT_TO_LEFT)
{
cursor.x() -= glyph->getHorizontalAdvance() * wr;
}
if (kerning)
{
switch (_layout)
{
case LEFT_TO_RIGHT:
{
osg::Vec2 delta(_font->getKerning(previous_charcode,charcode,_kerningType));
cursor.x() += delta.x() * wr;
cursor.y() += delta.y() * hr;
break;
}
case RIGHT_TO_LEFT:
{
osg::Vec2 delta(_font->getKerning(charcode,previous_charcode,_kerningType));
cursor.x() -= delta.x() * wr;
cursor.y() -= delta.y() * hr;
break;
}
case VERTICAL:
break; // no kerning when vertical.
}
}
cursor.x() -= glyph->getHorizontalAdvance() * wr;
}
else
{
switch (_layout)
{
case LEFT_TO_RIGHT:
{
cursor.x() -= glyph->getHorizontalBearing().x() * wr;
break;
}
case RIGHT_TO_LEFT:
{
cursor.x() -= bb.xMax() * wr;
break;
}
case VERTICAL:
{
// cursor.y() += glyph->getVerticalBearing().y();
break;
}
}
// adjust cursor position w.r.t any kerning.
if (kerning && previous_charcode)
{
switch(_layout)
{
case LEFT_TO_RIGHT:
{
osg::Vec2 delta(_font->getKerning(previous_charcode,charcode,_kerningType));
cursor.x() += delta.x() * wr;
cursor.y() += delta.y() * hr;
break;
}
case RIGHT_TO_LEFT:
{
osg::Vec2 delta(_font->getKerning(charcode,previous_charcode,_kerningType));
cursor.x() -= delta.x() * wr;
cursor.y() -= delta.y() * hr;
break;
}
case VERTICAL:
break; // no kerning when vertical.
}
}
local = cursor;
if (_layout==VERTICAL)
{
local.x() += -glyph->getVerticalBearing().x() * wr;
local.y() += -glyph->getVerticalBearing().y() * hr;
}
// move the cursor onto the next character.
// also expand bounding box
switch (_layout)
@ -400,12 +342,12 @@ void Text3D::computeGlyphRepresentation()
case LEFT_TO_RIGHT:
_textBB.expandBy(osg::Vec3(cursor.x() + bb.xMin()*wr, cursor.y() + bb.yMin()*hr, 0.0f)); //lower left corner
_textBB.expandBy(osg::Vec3(cursor.x() + bb.xMax()*wr, cursor.y() + bb.yMax()*hr, 0.0f)); //upper right corner
cursor.x() += glyph->getHorizontalAdvance();
cursor.x() += glyph->getHorizontalAdvance() * wr;
break;
case VERTICAL:
_textBB.expandBy(osg::Vec3(cursor.x(), cursor.y(), 0.0f)); //upper left corner
_textBB.expandBy(osg::Vec3(cursor.x() + glyph->getWidth()*wr, cursor.y() - glyph->getHeight()*hr, 0.0f)); //lower right corner
cursor.y() -= glyph->getVerticalAdvance();
cursor.y() -= glyph->getVerticalAdvance() * hr;
break;
case RIGHT_TO_LEFT:
_textBB.expandBy(osg::Vec3(cursor.x()+bb.xMax()*wr, cursor.y() + bb.yMax()*hr, 0.0f)); //upper right corner
@ -534,9 +476,6 @@ void Text3D::drawImplementation(osg::RenderInfo& renderInfo) const
osg::State & state = *renderInfo.getState();
unsigned int contextID = state.getContextID();
state.disableColorPointer();
state.Color(_color.r(),_color.g(),_color.b(),_color.a());
// ** save the previous modelview matrix
osg::Matrix previous(state.getModelViewMatrix());
@ -555,6 +494,8 @@ void Text3D::drawImplementation(osg::RenderInfo& renderInfo) const
{
if (_textBB.valid())
{
gl.Color4fv(_color.ptr());
osg::Vec3 c000(osg::Vec3(_textBB.xMin(),_textBB.yMin(),_textBB.zMax()));
osg::Vec3 c100(osg::Vec3(_textBB.xMax(),_textBB.yMin(),_textBB.zMax()));
osg::Vec3 c110(osg::Vec3(_textBB.xMax(),_textBB.yMax(),_textBB.zMax()));
@ -604,6 +545,8 @@ void Text3D::drawImplementation(osg::RenderInfo& renderInfo) const
osg::Vec3 vt(osg::Vec3(_offset.x(),_offset.y()-cursorsize,_offset.z()));
osg::Vec3 vb(osg::Vec3(_offset.x(),_offset.y()+cursorsize,_offset.z()));
gl.Color4fv(_color.ptr());
gl.Begin(GL_LINES);
gl.Vertex3fv(hl.ptr());
gl.Vertex3fv(hr.ptr());
@ -615,6 +558,9 @@ void Text3D::drawImplementation(osg::RenderInfo& renderInfo) const
if (_drawMode & TEXT)
{
state.disableColorPointer();
state.Color(_color.r(),_color.g(),_color.b(),_color.a());
renderInfo.getState()->disableAllVertexArrays();
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE) && !defined(OSG_GL3_AVAILABLE)

8
src/osgText/TextBase.cpp
View File

@ -93,14 +93,6 @@ void TextBase::setFont(osg::ref_ptr<Font> font)
{
if (_font==font) return;
osg::StateSet* previousFontStateSet = _font.valid() ? _font->getStateSet() : Font::getDefaultFont()->getStateSet();
osg::StateSet* newFontStateSet = font.valid() ? font->getStateSet() : Font::getDefaultFont()->getStateSet();
if (getStateSet() == previousFontStateSet)
{
setStateSet( newFontStateSet );
}
_font = font;
computeGlyphRepresentation();