2003-03-03 05:05:05 +08:00
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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY{
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}
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without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include "DefaultFont.h"
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#include <osg/Notify>
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using namespace osgText;
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DefaultFont::DefaultFont()
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{
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constructGlyphs();
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}
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DefaultFont::~DefaultFont()
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{
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}
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DefaultFont* DefaultFont::instance()
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{
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static osg::ref_ptr<DefaultFont> s_defaultFont = new DefaultFont;
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return s_defaultFont.get();
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}
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void DefaultFont::setSize(unsigned int, unsigned int)
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{
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osg::notify(osg::INFO)<<"DefaultFont::setSize(,) call is ignored."<<std::endl;
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}
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Font::Glyph* DefaultFont::getGlyph(unsigned int charcode)
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{
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2003-03-04 20:34:42 +08:00
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if (_sizeGlyphMap.empty()) return 0;
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SizeGlyphMap::iterator itr = _sizeGlyphMap.find(SizePair(_width,_height));
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if (itr==_sizeGlyphMap.end())
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{
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// no font found of correct size, will need to find the nearest.
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itr = _sizeGlyphMap.begin();
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int mindeviation = abs(_width-itr->first.first)+
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abs(_height-itr->first.second);
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SizeGlyphMap::iterator sitr=itr;
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++sitr;
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for(;
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sitr!=_sizeGlyphMap.end();
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++sitr)
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{
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int deviation = abs(_width-sitr->first.first)+
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abs(_height-sitr->first.second);
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if (deviation<mindeviation)
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{
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mindeviation = deviation;
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itr = sitr;
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}
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}
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}
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// new find the glyph for the required charcode.
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GlyphMap& glyphmap = itr->second;
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GlyphMap::iterator gitr = glyphmap.find(charcode);
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if (gitr!=glyphmap.end()) return gitr->second.get();
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2003-03-03 05:05:05 +08:00
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else return 0;
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}
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osg::Vec2 DefaultFont::getKerning(unsigned int,unsigned int)
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{
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// no kerning on default font.
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return osg::Vec2(0.0f,0.0f);
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}
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bool DefaultFont::hasVertical() const
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{
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return true;
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}
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void DefaultFont::constructGlyphs()
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{
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static GLubyte rasters[][12] = { // ascii symbols 32-127, small font
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x08, 0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x14, 0x14, 0x00},
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{0x00, 0x00, 0x28, 0x28, 0x7e, 0x14, 0x14, 0x14, 0x3f, 0x0a, 0x0a, 0x00},
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{0x00, 0x00, 0x08, 0x1c, 0x22, 0x02, 0x1c, 0x20, 0x22, 0x1c, 0x08, 0x00},
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{0x00, 0x00, 0x02, 0x45, 0x22, 0x10, 0x08, 0x04, 0x22, 0x51, 0x20, 0x00},
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{0x00, 0x00, 0x3b, 0x44, 0x4a, 0x49, 0x30, 0x10, 0x20, 0x20, 0x18, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x08, 0x00},
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{0x04, 0x08, 0x08, 0x10, 0x10, 0x10, 0x10, 0x10, 0x08, 0x08, 0x04, 0x00},
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{0x10, 0x08, 0x08, 0x04, 0x04, 0x04, 0x04, 0x04, 0x08, 0x08, 0x10, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x36, 0x1c, 0x7f, 0x1c, 0x36, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x08, 0x08, 0x08, 0x7f, 0x08, 0x08, 0x08, 0x00, 0x00, 0x00},
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{0x00, 0x10, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x00, 0x00},
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{0x00, 0x00, 0x1c, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x1c, 0x00},
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{0x00, 0x00, 0x3e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x38, 0x08, 0x00},
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{0x00, 0x00, 0x3e, 0x20, 0x10, 0x08, 0x04, 0x02, 0x02, 0x22, 0x1c, 0x00},
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{0x00, 0x00, 0x1c, 0x22, 0x02, 0x02, 0x0c, 0x02, 0x02, 0x22, 0x1c, 0x00},
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{0x00, 0x00, 0x0e, 0x04, 0x3e, 0x24, 0x14, 0x14, 0x0c, 0x0c, 0x04, 0x00},
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{0x00, 0x00, 0x1c, 0x22, 0x02, 0x02, 0x3c, 0x20, 0x20, 0x20, 0x3e, 0x00},
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{0x00, 0x00, 0x1c, 0x22, 0x22, 0x22, 0x3c, 0x20, 0x20, 0x10, 0x0c, 0x00},
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{0x00, 0x00, 0x10, 0x10, 0x08, 0x08, 0x04, 0x04, 0x02, 0x22, 0x3e, 0x00},
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{0x00, 0x00, 0x1c, 0x22, 0x22, 0x22, 0x1c, 0x22, 0x22, 0x22, 0x1c, 0x00},
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{0x00, 0x00, 0x18, 0x04, 0x02, 0x02, 0x1e, 0x22, 0x22, 0x22, 0x1c, 0x00},
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{0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x10, 0x08, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x04, 0x08, 0x10, 0x20, 0x10, 0x08, 0x04, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x10, 0x08, 0x04, 0x02, 0x04, 0x08, 0x10, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x08, 0x00, 0x08, 0x08, 0x04, 0x02, 0x02, 0x22, 0x1c, 0x00},
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{0x00, 0x00, 0x1c, 0x20, 0x4e, 0x55, 0x55, 0x55, 0x4d, 0x21, 0x1e, 0x00},
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{0x00, 0x00, 0x77, 0x22, 0x3e, 0x22, 0x14, 0x14, 0x08, 0x08, 0x18, 0x00},
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{0x00, 0x00, 0x7e, 0x21, 0x21, 0x21, 0x3e, 0x21, 0x21, 0x21, 0x7e, 0x00},
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{0x00, 0x00, 0x1e, 0x21, 0x40, 0x40, 0x40, 0x40, 0x40, 0x21, 0x1e, 0x00},
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{0x00, 0x00, 0x7c, 0x22, 0x21, 0x21, 0x21, 0x21, 0x21, 0x22, 0x7c, 0x00},
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{0x00, 0x00, 0x7f, 0x21, 0x20, 0x24, 0x3c, 0x24, 0x20, 0x21, 0x7f, 0x00},
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{0x00, 0x00, 0x78, 0x20, 0x20, 0x24, 0x3c, 0x24, 0x20, 0x21, 0x7f, 0x00},
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{0x00, 0x00, 0x1e, 0x21, 0x41, 0x47, 0x40, 0x40, 0x40, 0x21, 0x1e, 0x00},
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{0x00, 0x00, 0x77, 0x22, 0x22, 0x22, 0x3e, 0x22, 0x22, 0x22, 0x77, 0x00},
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{0x00, 0x00, 0x3e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x3e, 0x00},
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{0x00, 0x00, 0x38, 0x44, 0x44, 0x04, 0x04, 0x04, 0x04, 0x04, 0x1e, 0x00},
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{0x00, 0x00, 0x73, 0x22, 0x24, 0x38, 0x28, 0x24, 0x24, 0x22, 0x73, 0x00},
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{0x00, 0x00, 0x7f, 0x11, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x7c, 0x00},
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{0x00, 0x00, 0x77, 0x22, 0x22, 0x2a, 0x2a, 0x36, 0x36, 0x22, 0x63, 0x00},
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{0x00, 0x00, 0x72, 0x22, 0x26, 0x26, 0x2a, 0x32, 0x32, 0x22, 0x67, 0x00},
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{0x00, 0x00, 0x1c, 0x22, 0x41, 0x41, 0x41, 0x41, 0x41, 0x22, 0x1c, 0x00},
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{0x00, 0x00, 0x78, 0x20, 0x20, 0x20, 0x3e, 0x21, 0x21, 0x21, 0x7e, 0x00},
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{0x00, 0x1b, 0x1c, 0x22, 0x41, 0x41, 0x41, 0x41, 0x41, 0x22, 0x1c, 0x00},
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{0x00, 0x00, 0x73, 0x22, 0x24, 0x24, 0x3e, 0x21, 0x21, 0x21, 0x7e, 0x00},
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{0x00, 0x00, 0x3e, 0x41, 0x01, 0x01, 0x3e, 0x40, 0x40, 0x41, 0x3e, 0x00},
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{0x00, 0x00, 0x1c, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x49, 0x7f, 0x00},
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{0x00, 0x00, 0x1c, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x77, 0x00},
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{0x00, 0x00, 0x08, 0x08, 0x14, 0x14, 0x14, 0x22, 0x22, 0x22, 0x77, 0x00},
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{0x00, 0x00, 0x14, 0x14, 0x2a, 0x2a, 0x2a, 0x22, 0x22, 0x22, 0x77, 0x00},
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{0x00, 0x00, 0x77, 0x22, 0x14, 0x14, 0x08, 0x14, 0x14, 0x22, 0x77, 0x00},
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{0x00, 0x00, 0x1c, 0x08, 0x08, 0x08, 0x14, 0x14, 0x22, 0x22, 0x77, 0x00},
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{0x00, 0x00, 0x7f, 0x21, 0x10, 0x10, 0x08, 0x04, 0x04, 0x42, 0x7f, 0x00},
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{0x1c, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x1c, 0x00},
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{0x00, 0x00, 0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x00, 0x00},
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{0x1c, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x1c, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x22, 0x14, 0x08},
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{0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x00},
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{0x00, 0x00, 0x3d, 0x42, 0x42, 0x3e, 0x02, 0x3c, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x7e, 0x21, 0x21, 0x21, 0x21, 0x3e, 0x20, 0x20, 0x60, 0x00},
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{0x00, 0x00, 0x3e, 0x41, 0x40, 0x40, 0x41, 0x3e, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x3f, 0x42, 0x42, 0x42, 0x42, 0x3e, 0x02, 0x02, 0x06, 0x00},
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{0x00, 0x00, 0x3e, 0x41, 0x40, 0x7f, 0x41, 0x3e, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x3c, 0x10, 0x10, 0x10, 0x10, 0x3c, 0x10, 0x10, 0x0c, 0x00},
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{0x3c, 0x02, 0x02, 0x3e, 0x42, 0x42, 0x42, 0x3f, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x77, 0x22, 0x22, 0x22, 0x32, 0x2c, 0x20, 0x20, 0x60, 0x00},
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{0x00, 0x00, 0x3e, 0x08, 0x08, 0x08, 0x08, 0x38, 0x00, 0x00, 0x08, 0x00},
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{0x38, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x3c, 0x00, 0x00, 0x04, 0x00},
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{0x00, 0x00, 0x63, 0x24, 0x38, 0x28, 0x24, 0x26, 0x20, 0x20, 0x60, 0x00},
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{0x00, 0x00, 0x3e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x18, 0x00},
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{0x00, 0x00, 0x6b, 0x2a, 0x2a, 0x2a, 0x2a, 0x74, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x77, 0x22, 0x22, 0x22, 0x32, 0x6c, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x3e, 0x41, 0x41, 0x41, 0x41, 0x3e, 0x00, 0x00, 0x00, 0x00},
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{0x70, 0x20, 0x3e, 0x21, 0x21, 0x21, 0x21, 0x7e, 0x00, 0x00, 0x00, 0x00},
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{0x07, 0x02, 0x3e, 0x42, 0x42, 0x42, 0x42, 0x3f, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x7c, 0x10, 0x10, 0x10, 0x19, 0x76, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x3e, 0x41, 0x06, 0x38, 0x41, 0x3e, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x0c, 0x12, 0x10, 0x10, 0x10, 0x3c, 0x10, 0x10, 0x00, 0x00},
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{0x00, 0x00, 0x1b, 0x26, 0x22, 0x22, 0x22, 0x66, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x08, 0x14, 0x14, 0x22, 0x22, 0x77, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x14, 0x14, 0x2a, 0x2a, 0x22, 0x77, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x77, 0x22, 0x1c, 0x1c, 0x22, 0x77, 0x00, 0x00, 0x00, 0x00},
|
|
|
|
|
{0x30, 0x08, 0x08, 0x14, 0x14, 0x22, 0x22, 0x77, 0x00, 0x00, 0x00, 0x00},
|
|
|
|
|
{0x00, 0x00, 0x7e, 0x22, 0x10, 0x08, 0x44, 0x7e, 0x00, 0x00, 0x00, 0x00},
|
|
|
|
|
{0x06, 0x08, 0x08, 0x08, 0x08, 0x30, 0x08, 0x08, 0x08, 0x08, 0x06, 0x00},
|
|
|
|
|
{0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08},
|
|
|
|
|
{0x30, 0x08, 0x08, 0x08, 0x08, 0x06, 0x08, 0x08, 0x08, 0x08, 0x30, 0x00},
|
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46, 0x49, 0x31, 0x00, 0x00},
|
|
|
|
|
{0x00, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x00, 0x00}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
_width = 8;
|
|
|
|
|
_height = 12;
|
|
|
|
|
|
|
|
|
|
// populate the glyph mp
|
|
|
|
|
for(unsigned int i=32;i<127;i++)
|
|
|
|
|
{
|
|
|
|
|
osg::ref_ptr<Glyph> glyph = new Glyph;
|
|
|
|
|
|
|
|
|
|
unsigned char* data = new unsigned char[8*12*2];
|
|
|
|
|
glyph->setImage(_width,_height,1,
|
|
|
|
|
GL_LUMINANCE_ALPHA,
|
|
|
|
|
GL_LUMINANCE_ALPHA,GL_UNSIGNED_BYTE,
|
|
|
|
|
data,
|
|
|
|
|
osg::Image::USE_NEW_DELETE,
|
|
|
|
|
1);
|
|
|
|
|
|
|
|
|
|
// now populate data arry by converting bitmap into a luminance_alpha map.
|
|
|
|
|
unsigned char* ptr = rasters[i-32];
|
|
|
|
|
unsigned char value_on = 255;
|
|
|
|
|
unsigned char value_off = 0;
|
|
|
|
|
for(unsigned int row=0;row<_height;++row,++ptr)
|
|
|
|
|
{
|
|
|
|
|
(*data++)=((*ptr)&128)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&128)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&64)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&64)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&32)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&32)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&16)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&16)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&8)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&8)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&4)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&4)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&2)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&2)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&1)?value_on:value_off;
|
|
|
|
|
(*data++)=((*ptr)&1)?value_on:value_off;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
glyph->setHorizontalBearing(osg::Vec2(0.0f,0.0f)); // bottom left.
|
|
|
|
|
glyph->setHorizontalAdvance((float)_width);
|
|
|
|
|
glyph->setVerticalBearing(osg::Vec2((float)_width*0.5f,(float)_height)); // top middle.
|
|
|
|
|
glyph->setVerticalAdvance((float)_height);
|
|
|
|
|
|
2003-03-04 20:34:42 +08:00
|
|
|
addGlyph(_width,_height,i,glyph.get());
|
2003-03-03 05:05:05 +08:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
