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| <h1>FTExtrdGlyph.cpp</h1><a href="FTExtrdGlyph_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="preprocessor">#include <iostream></span> |
| 00002 |
| 00003 <span class="preprocessor">#include <math.h></span> |
| 00004 |
| 00005 <span class="preprocessor">#include "<a class="code" href="FTExtrdGlyph_8h.html">FTExtrdGlyph.h</a>"</span> |
| 00006 <span class="preprocessor">#include "<a class="code" href="FTVectoriser_8h.html">FTVectoriser.h</a>"</span> |
| 00007 |
| 00008 |
| <a name="l00009"></a><a class="code" href="classFTExtrdGlyph.html#a0">00009</a> <a class="code" href="classFTExtrdGlyph.html#a0">FTExtrdGlyph::FTExtrdGlyph</a>( FT_GlyphSlot glyph, <span class="keywordtype">float</span> depth, <span class="keywordtype">bool</span> useDisplayList) |
| 00010 : <a class="code" href="classFTGlyph.html">FTGlyph</a>( glyph), |
| 00011 glList(0) |
| 00012 { |
| 00013 bBox.<a class="code" href="classFTBBox.html#a6">SetDepth</a>( -depth); |
| 00014 |
| 00015 <span class="keywordflow">if</span>( ft_glyph_format_outline != glyph->format) |
| 00016 { |
| 00017 err = 0x14; <span class="comment">// Invalid_Outline</span> |
| 00018 <span class="keywordflow">return</span>; |
| 00019 } |
| 00020 |
| 00021 <a class="code" href="classFTVectoriser.html">FTVectoriser</a> vectoriser( glyph); |
| 00022 <span class="keywordflow">if</span>( ( vectoriser.<a class="code" href="classFTVectoriser.html#a5">ContourCount</a>() < 1) || ( vectoriser.<a class="code" href="classFTVectoriser.html#a4">PointCount</a>() < 3)) |
| 00023 { |
| 00024 <span class="keywordflow">return</span>; |
| 00025 } |
| 00026 |
| 00027 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tesselationIndex; |
| 00028 |
| 00029 <span class="keywordflow">if</span>(useDisplayList) |
| 00030 { |
| 00031 glList = glGenLists(1); |
| 00032 glNewList( glList, GL_COMPILE); |
| 00033 } |
| 00034 |
| 00035 vectoriser.<a class="code" href="classFTVectoriser.html#a2">MakeMesh</a>( 1.0); |
| 00036 glNormal3d(0.0, 0.0, 1.0); |
| 00037 |
| 00038 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> horizontalTextureScale = glyph->face->size->metrics.x_ppem * 64; |
| 00039 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> verticalTextureScale = glyph->face->size->metrics.y_ppem * 64; |
| 00040 |
| 00041 <span class="keyword">const</span> <a class="code" href="classFTMesh.html">FTMesh</a>* mesh = vectoriser.<a class="code" href="classFTVectoriser.html#a3">GetMesh</a>(); |
| 00042 <span class="keywordflow">for</span>( tesselationIndex = 0; tesselationIndex < mesh-><a class="code" href="classFTMesh.html#a7">TesselationCount</a>(); ++tesselationIndex) |
| 00043 { |
| 00044 <span class="keyword">const</span> <a class="code" href="classFTTesselation.html">FTTesselation</a>* subMesh = mesh-><a class="code" href="classFTMesh.html#a8">Tesselation</a>( tesselationIndex); |
| 00045 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> polyonType = subMesh-><a class="code" href="classFTTesselation.html#a5">PolygonType</a>(); |
| 00046 |
| 00047 glBegin( polyonType); |
| 00048 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pointIndex = 0; pointIndex < subMesh-><a class="code" href="classFTTesselation.html#a3">PointCount</a>(); ++pointIndex) |
| 00049 { |
| 00050 <a class="code" href="classFTPoint.html">FTPoint</a> point = subMesh-><a class="code" href="classFTTesselation.html#a4">Point</a>(pointIndex); |
| 00051 |
| 00052 glTexCoord2f( point.<a class="code" href="classFTPoint.html#a7">X</a>() / horizontalTextureScale, |
| 00053 point.<a class="code" href="classFTPoint.html#a8">Y</a>() / verticalTextureScale); |
| 00054 |
| 00055 glVertex3f( point.<a class="code" href="classFTPoint.html#a7">X</a>() / 64.0f, |
| 00056 point.<a class="code" href="classFTPoint.html#a8">Y</a>() / 64.0f, |
| 00057 0.0f); |
| 00058 } |
| 00059 glEnd(); |
| 00060 } |
| 00061 |
| 00062 vectoriser.<a class="code" href="classFTVectoriser.html#a2">MakeMesh</a>( -1.0); |
| 00063 glNormal3d(0.0, 0.0, -1.0); |
| 00064 |
| 00065 mesh = vectoriser.<a class="code" href="classFTVectoriser.html#a3">GetMesh</a>(); |
| 00066 <span class="keywordflow">for</span>( tesselationIndex = 0; tesselationIndex < mesh-><a class="code" href="classFTMesh.html#a7">TesselationCount</a>(); ++tesselationIndex) |
| 00067 { |
| 00068 <span class="keyword">const</span> <a class="code" href="classFTTesselation.html">FTTesselation</a>* subMesh = mesh-><a class="code" href="classFTMesh.html#a8">Tesselation</a>( tesselationIndex); |
| 00069 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> polyonType = subMesh-><a class="code" href="classFTTesselation.html#a5">PolygonType</a>(); |
| 00070 |
| 00071 glBegin( polyonType); |
| 00072 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pointIndex = 0; pointIndex < subMesh-><a class="code" href="classFTTesselation.html#a3">PointCount</a>(); ++pointIndex) |
| 00073 { |
| 00074 <a class="code" href="classFTPoint.html">FTPoint</a> point = subMesh-><a class="code" href="classFTTesselation.html#a4">Point</a>(pointIndex); |
| 00075 |
| 00076 glTexCoord2f( subMesh-><a class="code" href="classFTTesselation.html#a4">Point</a>(pointIndex).<a class="code" href="classFTPoint.html#a7">X</a>() / horizontalTextureScale, |
| 00077 subMesh-><a class="code" href="classFTTesselation.html#a4">Point</a>(pointIndex).<a class="code" href="classFTPoint.html#a8">Y</a>() / verticalTextureScale); |
| 00078 |
| 00079 glVertex3f( subMesh-><a class="code" href="classFTTesselation.html#a4">Point</a>( pointIndex).<a class="code" href="classFTPoint.html#a7">X</a>() / 64.0f, |
| 00080 subMesh-><a class="code" href="classFTTesselation.html#a4">Point</a>( pointIndex).<a class="code" href="classFTPoint.html#a8">Y</a>() / 64.0f, |
| 00081 -depth); |
| 00082 } |
| 00083 glEnd(); |
| 00084 } |
| 00085 |
| 00086 <span class="keywordtype">int</span> contourFlag = vectoriser.<a class="code" href="classFTVectoriser.html#a8">ContourFlag</a>(); |
| 00087 |
| 00088 <span class="keywordflow">for</span>( size_t c = 0; c < vectoriser.<a class="code" href="classFTVectoriser.html#a5">ContourCount</a>(); ++c) |
| 00089 { |
| 00090 <span class="keyword">const</span> <a class="code" href="classFTContour.html">FTContour</a>* contour = vectoriser.<a class="code" href="classFTVectoriser.html#a6">Contour</a>(c); |
| 00091 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numberOfPoints = contour-><a class="code" href="classFTContour.html#a3">PointCount</a>(); |
| 00092 |
| 00093 glBegin( GL_QUAD_STRIP); |
| 00094 <span class="keywordflow">for</span>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> j = 0; j <= numberOfPoints; ++j) |
| 00095 { |
| 00096 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pointIndex = ( j == numberOfPoints) ? 0 : j; |
| 00097 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nextPointIndex = ( pointIndex == numberOfPoints - 1) ? 0 : pointIndex + 1; |
| 00098 |
| 00099 <a class="code" href="classFTPoint.html">FTPoint</a> point = contour-><a class="code" href="classFTContour.html#a2">Point</a>(pointIndex); |
| 00100 |
| 00101 <a class="code" href="classFTPoint.html">FTPoint</a> normal = GetNormal( point, contour-><a class="code" href="classFTContour.html#a2">Point</a>(nextPointIndex)); |
| 00102 <span class="keywordflow">if</span>(normal != <a class="code" href="classFTPoint.html">FTPoint</a>( 0.0f, 0.0f, 0.0f)) |
| 00103 { |
| 00104 glNormal3dv((<a class="code" href="FTGL_8h.html#a4">FTGL_DOUBLE</a>*)normal); |
| 00105 } |
| 00106 |
| 00107 <span class="keywordflow">if</span>( contourFlag & ft_outline_reverse_fill) |
| 00108 { |
| 00109 glTexCoord2f( point.<a class="code" href="classFTPoint.html#a7">X</a>() / horizontalTextureScale, |
| 00110 point.<a class="code" href="classFTPoint.html#a7">X</a>() / verticalTextureScale); |
| 00111 |
| 00112 glVertex3f( point.<a class="code" href="classFTPoint.html#a7">X</a>() / 64.0f, point.<a class="code" href="classFTPoint.html#a8">Y</a>() / 64.0f, 0.0f); |
| 00113 glVertex3f( point.<a class="code" href="classFTPoint.html#a7">X</a>() / 64.0f, point.<a class="code" href="classFTPoint.html#a8">Y</a>() / 64.0f, -depth); |
| 00114 } |
| 00115 <span class="keywordflow">else</span> |
| 00116 { |
| 00117 glTexCoord2f( point.<a class="code" href="classFTPoint.html#a7">X</a>() / horizontalTextureScale, |
| 00118 point.<a class="code" href="classFTPoint.html#a8">Y</a>() / verticalTextureScale); |
| 00119 |
| 00120 glVertex3f( point.<a class="code" href="classFTPoint.html#a7">X</a>() / 64.0f, point.<a class="code" href="classFTPoint.html#a8">Y</a>() / 64.0f, -depth); |
| 00121 glVertex3f( point.<a class="code" href="classFTPoint.html#a7">X</a>() / 64.0f, point.<a class="code" href="classFTPoint.html#a8">Y</a>() / 64.0f, 0.0f); |
| 00122 } |
| 00123 } |
| 00124 glEnd(); |
| 00125 } |
| 00126 |
| 00127 <span class="keywordflow">if</span>(useDisplayList) |
| 00128 { |
| 00129 glEndList(); |
| 00130 } |
| 00131 } |
| 00132 |
| 00133 |
| <a name="l00134"></a><a class="code" href="classFTExtrdGlyph.html#a1">00134</a> <a class="code" href="classFTExtrdGlyph.html#a1">FTExtrdGlyph::~FTExtrdGlyph</a>() |
| 00135 { |
| 00136 glDeleteLists( glList, 1); |
| 00137 } |
| 00138 |
| 00139 |
| <a name="l00140"></a><a class="code" href="classFTExtrdGlyph.html#a2">00140</a> <span class="keyword">const</span> <a class="code" href="classFTPoint.html">FTPoint</a>& <a class="code" href="classFTExtrdGlyph.html#a2">FTExtrdGlyph::Render</a>( <span class="keyword">const</span> <a class="code" href="classFTPoint.html">FTPoint</a>& pen) |
| 00141 { |
| 00142 glTranslatef( pen.<a class="code" href="classFTPoint.html#a7">X</a>(), pen.<a class="code" href="classFTPoint.html#a8">Y</a>(), 0); |
| 00143 |
| 00144 <span class="keywordflow">if</span>( glList) |
| 00145 { |
| 00146 glCallList( glList); |
| 00147 } |
| 00148 |
| 00149 <span class="keywordflow">return</span> advance; |
| 00150 } |
| 00151 |
| 00152 |
| 00153 <a class="code" href="classFTPoint.html">FTPoint</a> FTExtrdGlyph::GetNormal( <span class="keyword">const</span> <a class="code" href="classFTPoint.html">FTPoint</a> &a, <span class="keyword">const</span> <a class="code" href="classFTPoint.html">FTPoint</a> &b) |
| 00154 { |
| 00155 <span class="keywordtype">float</span> vectorX = a.<a class="code" href="classFTPoint.html#a7">X</a>() - b.<a class="code" href="classFTPoint.html#a7">X</a>(); |
| 00156 <span class="keywordtype">float</span> vectorY = a.<a class="code" href="classFTPoint.html#a8">Y</a>() - b.<a class="code" href="classFTPoint.html#a8">Y</a>(); |
| 00157 |
| 00158 <span class="keywordtype">float</span> length = sqrt( vectorX * vectorX + vectorY * vectorY ); |
| 00159 |
| 00160 <span class="keywordflow">if</span>( length > 0.01f) |
| 00161 { |
| 00162 length = 1 / length; |
| 00163 } |
| 00164 <span class="keywordflow">else</span> |
| 00165 { |
| 00166 length = 0.0f; |
| 00167 } |
| 00168 |
| 00169 <span class="keywordflow">return</span> <a class="code" href="classFTPoint.html">FTPoint</a>( -vectorY * length, |
| 00170 vectorX * length, |
| 00171 0.0f); |
| 00172 } |
| 00173 |
| </pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Dec 5 22:24:05 2004 for FTGL by |
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