| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
| <html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> |
| <title>FTGL: FTCharToGlyphIndexMap.h Source File</title> |
| <link href="doxygen.css" rel="stylesheet" type="text/css"> |
| </head><body> |
| <!-- Generated by Doxygen 1.3.6 --> |
| <div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a></div> |
| <h1>FTCharToGlyphIndexMap.h</h1><a href="FTCharToGlyphIndexMap_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="preprocessor">#ifndef __FTCharToGlyphIndexMap__</span> |
| 00002 <span class="preprocessor"></span><span class="preprocessor">#define __FTCharToGlyphIndexMap__</span> |
| 00003 <span class="preprocessor"></span> |
| 00004 <span class="preprocessor">#include <stdlib.h></span> |
| 00005 |
| 00006 <span class="preprocessor">#include "<a class="code" href="FTGL_8h.html">FTGL.h</a>"</span> |
| 00007 |
| <a name="l00027"></a><a class="code" href="classFTCharToGlyphIndexMap.html">00027</a> <span class="keyword">class </span><a class="code" href="FTGL_8h.html#a3">FTGL_EXPORT</a> FTCharToGlyphIndexMap |
| 00028 { |
| 00029 <span class="keyword">public</span>: |
| 00030 |
| <a name="l00031"></a><a class="code" href="classFTCharToGlyphIndexMap.html#w0">00031</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="classFTCharToGlyphIndexMap.html#w0">CharacterCode</a>; |
| <a name="l00032"></a><a class="code" href="classFTCharToGlyphIndexMap.html#w1">00032</a> <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">long</span> <a class="code" href="classFTCharToGlyphIndexMap.html#w1">GlyphIndex</a>; |
| 00033 |
| 00034 <span class="keyword">enum</span> |
| 00035 { |
| 00036 NumberOfBuckets = 256, |
| 00037 BucketSize = 256, |
| 00038 IndexNotFound = -1 |
| 00039 }; |
| 00040 |
| <a name="l00041"></a><a class="code" href="classFTCharToGlyphIndexMap.html#a0">00041</a> FTCharToGlyphIndexMap() |
| 00042 { |
| 00043 this->Indices = 0; |
| 00044 } |
| 00045 |
| <a name="l00046"></a><a class="code" href="classFTCharToGlyphIndexMap.html#a1">00046</a> <span class="keyword">virtual</span> ~FTCharToGlyphIndexMap() |
| 00047 { |
| 00048 <span class="keywordflow">if</span>( this->Indices) |
| 00049 { |
| 00050 <span class="comment">// Free all buckets</span> |
| 00051 this->clear(); |
| 00052 |
| 00053 <span class="comment">// Free main structure</span> |
| 00054 <span class="keyword">delete</span> [] this->Indices; |
| 00055 this->Indices = 0; |
| 00056 } |
| 00057 } |
| 00058 |
| <a name="l00059"></a><a class="code" href="classFTCharToGlyphIndexMap.html#a2">00059</a> <span class="keywordtype">void</span> clear() |
| 00060 { |
| 00061 <span class="keywordflow">if</span>(this->Indices) |
| 00062 { |
| 00063 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classFTCharToGlyphIndexMap.html#w5w2">FTCharToGlyphIndexMap::NumberOfBuckets</a>; i++) |
| 00064 { |
| 00065 <span class="keywordflow">if</span>( this->Indices[i]) |
| 00066 { |
| 00067 <span class="keyword">delete</span> [] this->Indices[i]; |
| 00068 this->Indices[i] = 0; |
| 00069 } |
| 00070 } |
| 00071 } |
| 00072 } |
| 00073 |
| <a name="l00074"></a><a class="code" href="classFTCharToGlyphIndexMap.html#a3">00074</a> <span class="keyword">const</span> <a class="code" href="classFTCharToGlyphIndexMap.html#w1">GlyphIndex</a> find( <a class="code" href="classFTCharToGlyphIndexMap.html#w0">CharacterCode</a> c) |
| 00075 { |
| 00076 <span class="keywordflow">if</span>( !this->Indices) |
| 00077 { |
| 00078 <span class="keywordflow">return</span> 0; |
| 00079 } |
| 00080 |
| 00081 <span class="comment">// Find position of char code in buckets</span> |
| 00082 div_t pos = div( c, <a class="code" href="classFTCharToGlyphIndexMap.html#w5w3">FTCharToGlyphIndexMap::BucketSize</a>); |
| 00083 |
| 00084 <span class="keywordflow">if</span>( !this->Indices[pos.quot]) |
| 00085 { |
| 00086 <span class="keywordflow">return</span> 0; |
| 00087 } |
| 00088 |
| 00089 <span class="keyword">const</span> <a class="code" href="classFTCharToGlyphIndexMap.html#w1">FTCharToGlyphIndexMap::GlyphIndex</a> *ptr = &this->Indices[pos.quot][pos.rem]; |
| 00090 <span class="keywordflow">if</span>( *ptr == <a class="code" href="classFTCharToGlyphIndexMap.html#w5w4">FTCharToGlyphIndexMap::IndexNotFound</a>) |
| 00091 { |
| 00092 <span class="keywordflow">return</span> 0; |
| 00093 } |
| 00094 |
| 00095 <span class="keywordflow">return</span> *ptr; |
| 00096 } |
| 00097 |
| <a name="l00098"></a><a class="code" href="classFTCharToGlyphIndexMap.html#a4">00098</a> <span class="keywordtype">void</span> insert( <a class="code" href="classFTCharToGlyphIndexMap.html#w0">CharacterCode</a> c, <a class="code" href="classFTCharToGlyphIndexMap.html#w1">GlyphIndex</a> g) |
| 00099 { |
| 00100 <span class="keywordflow">if</span>( !this->Indices) |
| 00101 { |
| 00102 this->Indices = <span class="keyword">new</span> <a class="code" href="classFTCharToGlyphIndexMap.html#w1">GlyphIndex</a>* [<a class="code" href="classFTCharToGlyphIndexMap.html#w5w2">FTCharToGlyphIndexMap::NumberOfBuckets</a>]; |
| 00103 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classFTCharToGlyphIndexMap.html#w5w2">FTCharToGlyphIndexMap::NumberOfBuckets</a>; i++) |
| 00104 { |
| 00105 this->Indices[i] = 0; |
| 00106 } |
| 00107 } |
| 00108 |
| 00109 <span class="comment">// Find position of char code in buckets</span> |
| 00110 div_t pos = div(c, <a class="code" href="classFTCharToGlyphIndexMap.html#w5w3">FTCharToGlyphIndexMap::BucketSize</a>); |
| 00111 |
| 00112 <span class="comment">// Allocate bucket if does not exist yet</span> |
| 00113 <span class="keywordflow">if</span>( !this->Indices[pos.quot]) |
| 00114 { |
| 00115 this->Indices[pos.quot] = <span class="keyword">new</span> <a class="code" href="classFTCharToGlyphIndexMap.html#w1">GlyphIndex</a> [<a class="code" href="classFTCharToGlyphIndexMap.html#w5w3">FTCharToGlyphIndexMap::BucketSize</a>]; |
| 00116 <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classFTCharToGlyphIndexMap.html#w5w3">FTCharToGlyphIndexMap::BucketSize</a>; i++) |
| 00117 { |
| 00118 this->Indices[pos.quot][i] = <a class="code" href="classFTCharToGlyphIndexMap.html#w5w4">FTCharToGlyphIndexMap::IndexNotFound</a>; |
| 00119 } |
| 00120 } |
| 00121 |
| 00122 this->Indices[pos.quot][pos.rem] = g; |
| 00123 } |
| 00124 |
| 00125 <span class="keyword">private</span>: |
| 00126 GlyphIndex** Indices; |
| 00127 }; |
| 00128 |
| 00129 |
| 00130 <span class="preprocessor">#endif // __FTCharToGlyphIndexMap__</span> |
| </pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Dec 5 22:24:05 2004 for FTGL by |
| <a href="http://www.doxygen.org/index.html"> |
| <img src="doxygen.png" alt="doxygen" align="middle" border=0 > |
| </a>1.3.6 </small></address> |
| </body> |
| </html> |
