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<h1>font_generator.cpp</h1><a href="a04297.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <span class="comment">/* Copyright, 2000 Nevrax Ltd.</span>
00008 <span class="comment"> *</span>
00009 <span class="comment"> * This file is part of NEVRAX NEL.</span>
00010 <span class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</span>
00011 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
00012 <span class="comment"> * the Free Software Foundation; either version 2, or (at your option)</span>
00013 <span class="comment"> * any later version.</span>
00014 <span class="comment"></span>
00015 <span class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</span>
00016 <span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</span>
00017 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
00018 <span class="comment"> * General Public License for more details.</span>
00019 <span class="comment"></span>
00020 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
00021 <span class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</span>
00022 <span class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</span>
00023 <span class="comment"> * MA 02111-1307, USA.</span>
00024 <span class="comment"> */</span>
00025
00026 <span class="preprocessor">#include "<a class="code" href="a05015.html">std3d.h</a>"</span>
00027
00028 <span class="preprocessor">#include <string></span>
00029
00030 <span class="preprocessor">#include "<a class="code" href="a05167.html">nel/misc/types_nl.h</a>"</span>
00031 <span class="preprocessor">#include "<a class="code" href="a04199.html">nel/misc/debug.h</a>"</span>
00032 <span class="preprocessor">#include "<a class="code" href="a04164.html">nel/misc/common.h</a>"</span>
00033 <span class="preprocessor">#include "<a class="code" href="a04745.html">nel/misc/path.h</a>"</span>
00034
00035 <span class="preprocessor">#include "<a class="code" href="a04298.html">3d/font_generator.h</a>"</span>
00036
00037 <span class="keyword">using</span> <span class="keyword">namespace </span>std;
00038
00039 <span class="preprocessor">#ifndef NL_DONT_USE_EXTERNAL_CODE</span>
00040 <span class="preprocessor"></span>
00041 <span class="preprocessor">#include <freetype/freetype.h></span>
00042
00043 <span class="comment">// for freetype 2.0</span>
00044 <span class="preprocessor">#ifdef FTERRORS_H</span>
00045 <span class="preprocessor"></span><span class="preprocessor">#undef FTERRORS_H</span>
00046 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00047 <span class="preprocessor"></span>
00048 <span class="comment">// for freetype 2.0.1</span>
00049 <span class="preprocessor">#ifdef __FTERRORS_H__</span>
00050 <span class="preprocessor"></span><span class="preprocessor">#undef __FTERRORS_H__</span>
00051 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00052 <span class="preprocessor"></span>
<a name="l00053"></a><a class="code" href="a04297.html#a0">00053</a> <span class="preprocessor">#define FT_ERRORDEF( e, v, s ) { e, s },</span>
<a name="l00054"></a><a class="code" href="a04297.html#a1">00054</a> <span class="preprocessor"></span><span class="preprocessor">#define FT_ERROR_START_LIST {</span>
<a name="l00055"></a><a class="code" href="a04297.html#a2">00055</a> <span class="preprocessor"></span><span class="preprocessor">#define FT_ERROR_END_LIST { 0, 0 } };</span>
00056 <span class="preprocessor"></span>
00057 <span class="keyword">const</span> <span class="keyword">struct</span>
00058 <span class="keyword"></span>{
<a name="l00059"></a><a class="code" href="a04297.html#a3">00059</a> <span class="keywordtype">int</span> <a class="code" href="a04297.html#a3">err_code</a>;
<a name="l00060"></a><a class="code" href="a04297.html#a4">00060</a> <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="a04297.html#a4">err_msg</a>;
00061 } <a class="code" href="a04297.html#a5">ft_errors</a>[] =
00062
00063 <span class="preprocessor">#include <freetype/fterrors.h></span>
00064
00065 <span class="keyword">using</span> <span class="keyword">namespace </span>NLMISC;
00066
00067 <span class="keyword">namespace </span>NL3D {
00068
<a name="l00069"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratorv1">00069</a> FT_Library CFontGenerator::_Library;
<a name="l00070"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratorv2">00070</a> <span class="keywordtype">bool</span> CFontGenerator::_LibraryInit = <span class="keyword">false</span>;
<a name="l00071"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratorv0">00071</a> <a class="code" href="a04558.html#a11">uint32</a> CFontGenerator::_FontGeneratorCounterUID = 1;
00072
<a name="l00073"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">00073</a> <span class="keyword">const</span> <span class="keywordtype">char</span> *CFontGenerator::getFT2Error(FT_Error fte)
00074 {
00075 NL_ALLOC_CONTEXT (FreeTyp);
00076
00077 <span class="keyword">static</span> <span class="keywordtype">char</span> ukn[1024];
00078
00079 <span class="keywordflow">for</span> (<a class="code" href="a04558.html#a11">uint32</a> i = 0; <a class="code" href="a04297.html#a5">ft_errors</a>[i].err_code != 0 || <a class="code" href="a04297.html#a5">ft_errors</a>[i].err_msg != 0; i++)
00080 {
00081 <span class="keywordflow">if</span> (<a class="code" href="a04297.html#a5">ft_errors</a>[i].err_code == fte)
00082 <span class="keywordflow">return</span> <a class="code" href="a04297.html#a5">ft_errors</a>[i].err_msg;
00083 }
00084 <a class="code" href="a05378.html#a259">smprintf</a> (ukn, 1024, <span class="stringliteral">"Unknown freetype2 error, errcode: 0x%x"</span>, fte);
00085 <span class="keywordflow">return</span> ukn;
00086 }
00087
00088
00089
00090 <span class="comment">/*</span>
00091 <span class="comment"> * Constructor</span>
00092 <span class="comment"> */</span>
<a name="l00093"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratora0">00093</a> CFontGenerator::CFontGenerator (<span class="keyword">const</span> std::string &fontFileName, <span class="keyword">const</span> std::string &fontExFileName)
00094 {
00095 NL_ALLOC_CONTEXT (FreeTyp);
00096
00097 <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr2">_UID</a> = <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorv0">_FontGeneratorCounterUID</a>;
00098 _FontGeneratorCounterUID++;
00099 <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr1">_FontFileName</a> = fontFileName;
00100
00101 FT_Error error;
00102
00103 <span class="keywordflow">if</span> (!<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorv2">_LibraryInit</a>)
00104 {
00105 error = FT_Init_FreeType (&<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorv1">_Library</a>);
00106 <span class="keywordflow">if</span> (error)
00107 {
00108 <a class="code" href="a04199.html#a3">nlerror</a> (<span class="stringliteral">"FT_Init_FreeType() failed: %s"</span>, <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00109 }
00110 <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorv2">_LibraryInit</a> = <span class="keyword">true</span>;
00111 }
00112
00113 error = FT_New_Face (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorv1">_Library</a>, fontFileName.c_str (), 0, &<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>);
00114 <span class="keywordflow">if</span> (error)
00115 {
00116 <a class="code" href="a04199.html#a3">nlerror</a> (<span class="stringliteral">"FT_New_Face() failed with file '%s': %s"</span>, fontFileName.c_str(), <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00117 }
00118
00119 string fontEx = fontExFileName;
00120 <span class="keywordflow">if</span> (fontEx == <span class="stringliteral">""</span>)
00121 {
00122 <span class="comment">// try to see if the ex filename exists based on the fontExFileName</span>
00123 fontEx = CPath::lookup(CFile::getFilenameWithoutExtension (fontFileName)+<span class="stringliteral">".afm"</span>, <span class="keyword">false</span>, <span class="keyword">false</span>);
00124 }
00125
00126 <span class="keywordflow">if</span> (fontEx != <span class="stringliteral">""</span>)
00127 {
00128 error = FT_Attach_File (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, fontEx.c_str ());
00129 <span class="keywordflow">if</span> (error)
00130 {
00131 <a class="code" href="a04199.html#a2">nlwarning</a> (<span class="stringliteral">"FT_Attach_File() failed with file '%s': %s"</span>, fontEx.c_str(), <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00132 }
00133 }
00134
00135 error = FT_Select_Charmap (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, ft_encoding_unicode);
00136 <span class="keywordflow">if</span> (error)
00137 {
00138 <a class="code" href="a04199.html#a3">nlerror</a> (<span class="stringliteral">"FT_Select_Charmap() failed with file '%s': %s"</span>, fontFileName.c_str(), <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00139 }
00140 }
00141
<a name="l00142"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratora6">00142</a> CFontGenerator::~CFontGenerator ()
00143 {
00144 }
00145
<a name="l00146"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratora4">00146</a> <span class="keywordtype">void</span> CFontGenerator::getSizes (<a class="code" href="a05167.html#a18">ucchar</a> c, <a class="code" href="a04558.html#a11">uint32</a> <a class="code" href="a04223.html#a587">size</a>, <a class="code" href="a04558.html#a11">uint32</a> &<a class="code" href="a04223.html#a632">width</a>, <a class="code" href="a04558.html#a11">uint32</a> &<a class="code" href="a04223.html#a633">height</a>)
00147 {
00148 NL_ALLOC_CONTEXT (FreeTyp);
00149
00150 FT_Error error;
00151
00152 error = FT_Set_Pixel_Sizes (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, <a class="code" href="a04223.html#a587">size</a>, <a class="code" href="a04223.html#a587">size</a>);
00153 <span class="keywordflow">if</span> (error)
00154 {
00155 <a class="code" href="a04199.html#a3">nlerror</a> (<span class="stringliteral">"FT_Set_Pixel_Sizes() failed: %s"</span>, <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00156 }
00157
00158 <span class="comment">// retrieve glyph index from character code</span>
00159 FT_UInt glyph_index = FT_Get_Char_Index (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, c);
00160
00161 <span class="comment">// load glyph image into the slot (erase previous one)</span>
00162 error = FT_Load_Glyph (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, glyph_index, FT_LOAD_DEFAULT);
00163 <span class="keywordflow">if</span> (error)
00164 {
00165 <a class="code" href="a04199.html#a3">nlerror</a> (<span class="stringliteral">"FT_Load_Glyph() failed: %s"</span>, <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00166 }
00167
00168 <span class="comment">// convert 24.6 fixed point into integer</span>
00169 <a class="code" href="a04223.html#a632">width</a> = <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph->metrics.width >> 6;
00170 <a class="code" href="a04223.html#a633">height</a> = <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph->metrics.height >> 6;
00171 }
00172
<a name="l00173"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratora1">00173</a> <a class="code" href="a04558.html#a7">uint8</a> *CFontGenerator::getBitmap (<a class="code" href="a05167.html#a18">ucchar</a> c, <a class="code" href="a04558.html#a11">uint32</a> <a class="code" href="a04223.html#a587">size</a>, <a class="code" href="a04558.html#a11">uint32</a> &<a class="code" href="a04223.html#a632">width</a>, <a class="code" href="a04558.html#a11">uint32</a> &<a class="code" href="a04223.html#a633">height</a>, <a class="code" href="a04558.html#a11">uint32</a> &pitch, <a class="code" href="a04558.html#a10">sint32</a> &left, <a class="code" href="a04558.html#a10">sint32</a> &top, <a class="code" href="a04558.html#a10">sint32</a> &advx, <a class="code" href="a04558.html#a11">uint32</a> &glyphIndex)
00174 {
00175 NL_ALLOC_CONTEXT (FreeTyp);
00176
00177 FT_Error error;
00178
00179 error = FT_Set_Pixel_Sizes (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, <a class="code" href="a04223.html#a587">size</a>, <a class="code" href="a04223.html#a587">size</a>);
00180 <span class="keywordflow">if</span> (error)
00181 {
00182 <a class="code" href="a04199.html#a3">nlerror</a> (<span class="stringliteral">"FT_Set_Pixel_Sizes() failed: %s"</span>, <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00183 }
00184
00185 <span class="comment">// retrieve glyph index from character code</span>
00186 FT_UInt glyph_index = FT_Get_Char_Index (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, c);
00187
00188 <span class="comment">// load glyph image into the slot (erase previous one)</span>
00189 error = FT_Load_Glyph (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, glyph_index, FT_LOAD_DEFAULT);
00190 <span class="keywordflow">if</span> (error)
00191 {
00192 <a class="code" href="a04199.html#a3">nlerror</a> (<span class="stringliteral">"FT_Load_Glyph() failed: %s"</span>, <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00193 }
00194
00195 <span class="keywordflow">if</span> (<a class="code" href="a04223.html#a587">size</a> == 0)
00196 {
00197 <a class="code" href="a04223.html#a632">width</a> = 0;
00198 <a class="code" href="a04223.html#a633">height</a> = 0;
00199 pitch = 0;
00200 left = 0;
00201 top = 0;
00202 advx = 0;
00203 glyphIndex = glyph_index;
00204 <span class="keywordflow">return</span> NULL;
00205 }
00206
00207 <span class="comment">// convert to an anti-aliased bitmap</span>
00208 error = FT_Render_Glyph (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph, ft_render_mode_normal);
00209 <span class="keywordflow">if</span> (error)
00210 {
00211 <a class="code" href="a04199.html#a3">nlerror</a> (<span class="stringliteral">"FT_Render_Glyph() failed: %s"</span>, <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00212 }
00213
00214 <a class="code" href="a04223.html#a632">width</a> = <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph->bitmap.width;
00215 <a class="code" href="a04223.html#a633">height</a> = <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph->bitmap.rows;
00216 pitch = <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph->bitmap.pitch;
00217
00218 left = <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph->bitmap_left;
00219 top = <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph->bitmap_top;
00220
00221 advx = <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph->advance.x >> 6;
00222
00223 glyphIndex = glyph_index;
00224
00225 <span class="keywordflow">return</span> (<a class="code" href="a04558.html#a7">uint8</a> *) <a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>->glyph->bitmap.buffer;
00226 }
00227
00228
00229
<a name="l00230"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratora3">00230</a> <span class="keywordtype">void</span> CFontGenerator::getKerning (<a class="code" href="a05167.html#a18">ucchar</a> left, <a class="code" href="a05167.html#a18">ucchar</a> right, <a class="code" href="a04558.html#a10">sint32</a> &kernx)
00231 {
00232 NL_ALLOC_CONTEXT (FreeTyp);
00233
00234 <span class="keywordflow">if</span> (!FT_HAS_KERNING(<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>))
00235 {
00236 kernx = 0;
00237 }
00238 <span class="keywordflow">else</span>
00239 {
00240 FT_Vector kerning;
00241 FT_Error error = FT_Get_Kerning (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, left, right, ft_kerning_default, &kerning);
00242 <span class="keywordflow">if</span> (error)
00243 {
00244 <a class="code" href="a04199.html#a3">nlerror</a> (<span class="stringliteral">"FT_Get_Kerning() failed: %s"</span>, <a class="code" href="a02541.html#NL3D_1_1CFontGeneratord0">getFT2Error</a>(error));
00245 }
00246 kernx = kerning.x;
00247 }
00248 }
00249
00250
00251
<a name="l00252"></a><a class="code" href="a02541.html#NL3D_1_1CFontGeneratora2">00252</a> <a class="code" href="a04558.html#a11">uint32</a> CFontGenerator::getCharIndex (<a class="code" href="a05167.html#a18">ucchar</a> c)
00253 {
00254 NL_ALLOC_CONTEXT (FreeTyp);
00255
00256 <span class="keywordflow">return</span> FT_Get_Char_Index (<a class="code" href="a02541.html#NL3D_1_1CFontGeneratorr0">_Face</a>, c);
00257 }
00258
00259 } <span class="comment">// NL3D</span>
00260
00261 <span class="preprocessor">#else // NL_DONT_USE_EXTERNAL_CODE</span>
00262 <span class="preprocessor"></span>
00263 <span class="preprocessor">#include <windows.h></span>
00264
00265 <span class="keyword">using</span> <span class="keyword">namespace </span>NLMISC;
00266
00267 <span class="keyword">namespace </span><a class="code" href="a06846.html">NL3D</a> {
00268
00269 HBITMAP Dib;
00270 <a class="code" href="a04558.html#a11">uint32</a> *Buffer;
00271 HDC hdcDib;
00272 <span class="keywordtype">int</span> Width = 100;
00273 <span class="keywordtype">int</span> Height = 100;
00274
00275 <span class="comment">/*</span>
00276 <span class="comment"> * Constructor</span>
00277 <span class="comment"> */</span>
00278 CFontGenerator::CFontGenerator (<span class="keyword">const</span> std::string &fontFileName, <span class="keyword">const</span> std::string &fontExFileName)
00279 {
00280
00281 <span class="comment">// HWND win=(HWND)winHack;</span>
00282 <span class="comment">// WindowHandle = win;</span>
00283 <span class="comment">// Format = format;</span>
00284 <span class="comment">// RECT rect;</span>
00285 <span class="comment">// BOOL ret = GetClientRect( WindowHandle, &rect);</span>
00286 <span class="comment">// assert (ret);</span>
00287
00288 <span class="comment">// uint f = AddFontResource ("");</span>
00289 <span class="comment">// nlassert (f);</span>
00290
00291 BITMAPINFO info;
00292 info.bmiHeader.biWidth = Width;
00293 info.bmiHeader.biHeight= -Height;
00294 info.bmiHeader.biSize = <span class="keyword">sizeof</span> (BITMAPINFOHEADER);
00295 info.bmiHeader.biPlanes = 1;
00296 info.bmiHeader.biBitCount = 32;
00297 info.bmiHeader.biCompression = BI_RGB;
00298 info.bmiHeader.biSizeImage = 4*Width*Height;
00299 info.bmiHeader.biXPelsPerMeter = 1;
00300 info.bmiHeader.biYPelsPerMeter = 1;
00301 info.bmiHeader.biClrUsed = 0;
00302 info.bmiHeader.biClrImportant = 0;
00303
00304 HDC hdc = GetDC (NULL);
00305 <a class="code" href="a04199.html#a6">nlassert</a> (hdc);
00306 Dib = CreateDIBSection (hdc, &info, DIB_RGB_COLORS, (<span class="keywordtype">void</span>**)&Buffer, NULL, NULL);
00307
00308 hdcDib = CreateCompatibleDC (hdc);
00309 <a class="code" href="a04199.html#a6">nlassert</a> (hdcDib);
00310
00311
00312 ReleaseDC (NULL, hdc);
00313
00314 SetTextAlign (hdcDib, TA_TOP | TA_LEFT | TA_NOUPDATECP);
00315 SetBkColor (hdcDib, RGB (0,0,0));
00316 SetTextColor (hdcDib, RGB (255, 255, 255));
00317
00318 <span class="comment">/*FT_Error error;</span>
00319 <span class="comment"></span>
00320 <span class="comment"> if (!_LibraryInit)</span>
00321 <span class="comment"> {</span>
00322 <span class="comment"> error = FT_Init_FreeType (&_Library);</span>
00323 <span class="comment"> if (error)</span>
00324 <span class="comment"> {</span>
00325 <span class="comment"> nlerror ("FT_Init_FreeType() failed: %s", getFT2Error(error));</span>
00326 <span class="comment"> }</span>
00327 <span class="comment"> _LibraryInit = true;</span>
00328 <span class="comment"> }</span>
00329 <span class="comment"></span>
00330 <span class="comment"> error = FT_New_Face (_Library, fontFileName.c_str (), 0, &_Face);</span>
00331 <span class="comment"> if (error)</span>
00332 <span class="comment"> {</span>
00333 <span class="comment"> nlerror ("FT_New_Face() failed with file '%s': %s", fontFileName.c_str(), getFT2Error(error));</span>
00334 <span class="comment"> }</span>
00335 <span class="comment"></span>
00336 <span class="comment"> if (fontExFileName != "")</span>
00337 <span class="comment"> {</span>
00338 <span class="comment"> error = FT_Attach_File (_Face, fontExFileName.c_str ());</span>
00339 <span class="comment"> if (error)</span>
00340 <span class="comment"> {</span>
00341 <span class="comment"> nlwarning ("FT_Attach_File() failed with file '%s': %s", fontExFileName.c_str(), getFT2Error(error));</span>
00342 <span class="comment"> }</span>
00343 <span class="comment"> }*/</span>
00344 }
00345
00346 CFontGenerator::~CFontGenerator ()
00347 {
00348 DeleteObject (Dib);
00349
00350 DeleteDC (hdcDib);
00351 }
00352
00353 <span class="keywordtype">void</span> CFontGenerator::getSizes (<a class="code" href="a05167.html#a18">ucchar</a> c, <a class="code" href="a04558.html#a11">uint32</a> <a class="code" href="a04223.html#a587">size</a>, <a class="code" href="a04558.html#a11">uint32</a> &<a class="code" href="a04223.html#a632">width</a>, <a class="code" href="a04558.html#a11">uint32</a> &<a class="code" href="a04223.html#a633">height</a>)
00354 {
00355 <span class="comment">/* FT_Error error;</span>
00356 <span class="comment"></span>
00357 <span class="comment"> error = FT_Set_Pixel_Sizes (_Face, size, size);</span>
00358 <span class="comment"> if (error)</span>
00359 <span class="comment"> {</span>
00360 <span class="comment"> nlerror ("FT_Set_Pixel_Sizes() failed: %s", getFT2Error(error));</span>
00361 <span class="comment"> }</span>
00362 <span class="comment"></span>
00363 <span class="comment"> // retrieve glyph index from character code</span>
00364 <span class="comment"> FT_UInt glyph_index = FT_Get_Char_Index (_Face, c);</span>
00365 <span class="comment"></span>
00366 <span class="comment"> // load glyph image into the slot (erase previous one)</span>
00367 <span class="comment"> error = FT_Load_Glyph (_Face, glyph_index, FT_LOAD_DEFAULT);</span>
00368 <span class="comment"> if (error)</span>
00369 <span class="comment"> {</span>
00370 <span class="comment"> nlerror ("FT_Load_Glyph() failed: %s", getFT2Error(error));</span>
00371 <span class="comment"> }</span>
00372 <span class="comment"></span>
00373 <span class="comment"> // convert 24.6 fixed point into integer</span>
00374 <span class="comment"> width = _Face->glyph->metrics.width >> 6;</span>
00375 <span class="comment"> height = _Face->glyph->metrics.height >> 6;</span>
00376 <span class="comment"> */</span>
00377 }
00378
00379 HFONT hFont = NULL;
00380 <a class="code" href="a04558.html#a11">uint32</a> CurrentFontSize = 0;
00381
00382 <a class="code" href="a04558.html#a7">uint8</a> *CFontGenerator::getBitmap (<a class="code" href="a05167.html#a18">ucchar</a> c, <a class="code" href="a04558.html#a11">uint32</a> <a class="code" href="a04223.html#a587">size</a>, <a class="code" href="a04558.html#a11">uint32</a> &<a class="code" href="a04223.html#a632">width</a>, <a class="code" href="a04558.html#a11">uint32</a> &<a class="code" href="a04223.html#a633">height</a>, <a class="code" href="a04558.html#a11">uint32</a> &pitch, <a class="code" href="a04558.html#a10">sint32</a> &left, <a class="code" href="a04558.html#a10">sint32</a> &top, <a class="code" href="a04558.html#a10">sint32</a> &advx, <a class="code" href="a04558.html#a11">uint32</a> &glyphIndex)
00383 {
00384 <span class="comment">/* FT_Error error;</span>
00385 <span class="comment"></span>
00386 <span class="comment"> error = FT_Set_Pixel_Sizes (_Face, size, size);</span>
00387 <span class="comment"> if (error)</span>
00388 <span class="comment"> {</span>
00389 <span class="comment"> nlerror ("FT_Set_Pixel_Sizes() failed: %s", getFT2Error(error));</span>
00390 <span class="comment"> }</span>
00391 <span class="comment"></span>
00392 <span class="comment"> // retrieve glyph index from character code</span>
00393 <span class="comment"> FT_UInt glyph_index = FT_Get_Char_Index (_Face, c);</span>
00394 <span class="comment"></span>
00395 <span class="comment"> // load glyph image into the slot (erase previous one)</span>
00396 <span class="comment"> error = FT_Load_Glyph (_Face, glyph_index, FT_LOAD_DEFAULT);</span>
00397 <span class="comment"> if (error)</span>
00398 <span class="comment"> {</span>
00399 <span class="comment"> nlerror ("FT_Load_Glyph() failed: %s", getFT2Error(error));</span>
00400 <span class="comment"> }</span>
00401 <span class="comment"></span>
00402 <span class="comment"> if (size == 0)</span>
00403 <span class="comment"> {</span>
00404 <span class="comment"> width = 0;</span>
00405 <span class="comment"> height = 0;</span>
00406 <span class="comment"> pitch = 0;</span>
00407 <span class="comment"> left = 0;</span>
00408 <span class="comment"> top = 0;</span>
00409 <span class="comment"> advx = 0;</span>
00410 <span class="comment"> glyphIndex = glyph_index;</span>
00411 <span class="comment"> return NULL;</span>
00412 <span class="comment"> }</span>
00413 <span class="comment"></span>
00414 <span class="comment"> // convert to an anti-aliased bitmap</span>
00415 <span class="comment"> error = FT_Render_Glyph (_Face->glyph, ft_render_mode_normal);</span>
00416 <span class="comment"> if (error)</span>
00417 <span class="comment"> {</span>
00418 <span class="comment"> nlerror ("FT_Render_Glyph() failed: %s", getFT2Error(error));</span>
00419 <span class="comment"> }</span>
00420 <span class="comment"></span>
00421 <span class="comment"> width = _Face->glyph->bitmap.width;</span>
00422 <span class="comment"> height = _Face->glyph->bitmap.rows;</span>
00423 <span class="comment"> pitch = _Face->glyph->bitmap.pitch;</span>
00424 <span class="comment"></span>
00425 <span class="comment"> left = _Face->glyph->bitmap_left;</span>
00426 <span class="comment"> top = _Face->glyph->bitmap_top;</span>
00427 <span class="comment"></span>
00428 <span class="comment"> advx = _Face->glyph->advance.x >> 6;</span>
00429 <span class="comment"></span>
00430 <span class="comment"> glyphIndex = glyph_index;</span>
00431 <span class="comment"></span>
00432 <span class="comment"> return (uint8 *) _Face->glyph->bitmap.buffer;</span>
00433 <span class="comment">*/</span>
00434
00435 <span class="keywordflow">if</span> (<a class="code" href="a04223.html#a587">size</a> == 0)
00436 {
00437 <a class="code" href="a04223.html#a632">width</a> = 0;
00438 <a class="code" href="a04223.html#a633">height</a> = 0;
00439 pitch = 0;
00440 left = 0;
00441 top = 0;
00442 advx = 0;
00443 glyphIndex = 0;
00444 <span class="keywordflow">return</span> NULL;
00445 }
00446
00447 <span class="comment">// Create the font</span>
00448 <span class="keywordflow">if</span> (hFont == NULL || CurrentFontSize != <a class="code" href="a04223.html#a587">size</a>)
00449 {
00450 <span class="keywordflow">if</span> (hFont != NULL)
00451 {
00452 DeleteObject (hFont);
00453 }
00454
00455 hFont=CreateFont
00456 (
00457 <a class="code" href="a04223.html#a587">size</a>, <span class="comment">// logical height of font</span>
00458 0, <span class="comment">// logical average character width</span>
00459 0, <span class="comment">// angle of escapement</span>
00460 0, <span class="comment">// base-line orientation angle</span>
00461 FW_DONTCARE, <span class="comment">//FW_NORMAL, // font weight</span>
00462 FALSE, <span class="comment">// italic attribute flag</span>
00463 FALSE, <span class="comment">// underline attribute flag</span>
00464 FALSE, <span class="comment">// strikeout attribute flag</span>
00465 DEFAULT_CHARSET, <span class="comment">// character set identifier</span>
00466 OUT_DEVICE_PRECIS, <span class="comment">// output precision</span>
00467 CLIP_DEFAULT_PRECIS, <span class="comment">// clipping precision</span>
00468 DEFAULT_QUALITY, <span class="comment">// output quality</span>
00469 DEFAULT_PITCH|FF_DONTCARE, <span class="comment">// pitch and family</span>
00470 <span class="stringliteral">"Arial Unicode MS Normal"</span> <span class="comment">// pointer to typeface name string</span>
00471 );
00472 <a class="code" href="a04199.html#a6">nlassert</a> (hFont);
00473
00474 CurrentFontSize = <a class="code" href="a04223.html#a587">size</a>;
00475 }
00476
00477 SelectObject (hdcDib, hFont);
00478 SelectObject (hdcDib, Dib);
00479
00480 <span class="keyword">const</span> <span class="keywordtype">char</span> cc = (<span class="keywordtype">char</span>) c;
00481
00482 RECT rect;
00483 rect.bottom = Height;
00484 rect.top = 0;
00485 rect.left = 0;
00486 rect.right = Width;
00487
00488 <span class="keywordtype">int</span> <a class="code" href="a04223.html#a643">res</a> = DrawText (hdcDib, &cc, 1, &rect, DT_LEFT | DT_TOP);
00489
00490 POINT point;
00491 point.y = <a class="code" href="a04223.html#a643">res</a>;
00492
00493 <span class="keywordtype">int</span> <a class="code" href="a04223.html#a575">w</a> = <a class="code" href="a04223.html#a643">res</a>;
00494 BOOL rey = GetCharWidth32 (hdcDib, (<a class="code" href="a04558.html#a7">uint8</a>) cc, (<a class="code" href="a04558.html#a7">uint8</a>) cc, &w);
00495 <a class="code" href="a04199.html#a6">nlassert</a> (rey);
00496 point.x = <a class="code" href="a04223.html#a575">w</a>;
00497
00498 <span class="comment">// ABC abc;</span>
00499 <span class="comment">// BOOL rey = GetCharABCWidths (hdcDib, (uint8) cc, (uint8) cc, &abc);</span>
00500 <span class="comment">// nlassert (rey);</span>
00501 <span class="comment">// point.x = abc.abcA;</span>
00502
00503 SIZE <a class="code" href="a04223.html#a626">s</a>;
00504 GetTextExtentPoint32 (hdcDib, &cc, 1, &s);
00505
00506 BOOL ret = LPtoDP (hdcDib, &point, 1);
00507 <a class="code" href="a04199.html#a6">nlassert</a> (ret);
00508
00509 <span class="keyword">static</span> <a class="code" href="a04558.html#a7">uint8</a> buf[100*100];
00510
00511 <a class="code" href="a04558.html#a10">sint32</a> _top = 0, _left = point.x;
00512 <a class="code" href="a04558.html#a10">sint32</a> right = 0, bottom = point.y;
00513 <span class="keywordtype">bool</span> emptyLine;
00514 <span class="keywordflow">for</span> (<a class="code" href="a04558.html#a14">sint</a> <a class="code" href="a04223.html#a573">y</a> = 0; <a class="code" href="a04223.html#a573">y</a> < point.y; <a class="code" href="a04223.html#a573">y</a>++)
00515 {
00516 emptyLine = <span class="keyword">true</span>;
00517 <span class="keywordflow">for</span> (<a class="code" href="a04558.html#a14">sint</a> <a class="code" href="a04223.html#a572">x</a> = 0; <a class="code" href="a04223.html#a572">x</a> < point.x; <a class="code" href="a04223.html#a572">x</a>++)
00518 {
00519 buf[<a class="code" href="a04223.html#a573">y</a>*100+<a class="code" href="a04223.html#a572">x</a>] = (<a class="code" href="a04558.html#a7">uint8</a>) Buffer[<a class="code" href="a04223.html#a573">y</a>*100+<a class="code" href="a04223.html#a572">x</a>];
00520 <span class="keywordflow">if</span> (buf[<a class="code" href="a04223.html#a573">y</a>*100+<a class="code" href="a04223.html#a572">x</a>])
00521 {
00522 emptyLine = <span class="keyword">false</span>;
00523 <span class="keywordflow">if</span> (<a class="code" href="a04223.html#a572">x</a> < _left)
00524 _left = <a class="code" href="a04223.html#a572">x</a>;
00525 <span class="keywordflow">if</span> (<a class="code" href="a04223.html#a572">x</a> > right)
00526 right = <a class="code" href="a04223.html#a572">x</a>;
00527 }
00528
00529 <span class="comment">// printf (buf[y*100+x]?"*":".");</span>
00530 }
00531 <span class="keywordflow">if</span> (!emptyLine)
00532 {
00533 <span class="keywordflow">if</span> (_top == 0)
00534 _top = <a class="code" href="a04223.html#a573">y</a>;
00535
00536 bottom = <a class="code" href="a04223.html#a573">y</a>;
00537 }
00538
00539 <span class="comment">// printf ("\n");</span>
00540 }
00541 <a class="code" href="a04223.html#a632">width</a> = right - _left + 1;
00542 <span class="keywordflow">if</span> (right - _left + 1 < 0) <a class="code" href="a04223.html#a632">width</a> = 0;
00543 <a class="code" href="a04223.html#a633">height</a> = bottom - _top + 1;
00544 <span class="keywordflow">if</span> (bottom - _top + 1 < 0) <a class="code" href="a04223.html#a633">height</a> = 0;
00545 pitch = 100;
00546 advx = point.x;
00547
00548 WORD ag = 0;
00549 <span class="comment">/*uint t = GetGlyphIndices (hdcDib, &cc, 1, &ag, 0);</span>
00550 <span class="comment"> if (t == GDI_ERROR)</span>
00551 <span class="comment"> {</span>
00552 <span class="comment"> nlstop;</span>
00553 <span class="comment"> }</span>
00554 <span class="comment">*/</span>
00555 glyphIndex = ag;
00556
00557 top = -_top;
00558 left = -_left;
00559
00560 <span class="comment">/* {</span>
00561 <span class="comment"> for (sint y = _top; y < _top + height; y++)</span>
00562 <span class="comment"> {</span>
00563 <span class="comment"> for (sint x = _left; x < _left + width; x++)</span>
00564 <span class="comment"> {</span>
00565 <span class="comment"> printf (buf[y*100+x]?"*":".");</span>
00566 <span class="comment"> }</span>
00567 <span class="comment"> printf ("\n");</span>
00568 <span class="comment"> }</span>
00569 <span class="comment"> printf ("w: %d h: %d s: %d a: %d l: %d t: %d", width, height, size, advx, left, top);</span>
00570 <span class="comment"> getchar();</span>
00571 <span class="comment"> }</span>
00572 <span class="comment">*/</span>
00573 _top = _left = top = left = 0;
00574 top = <a class="code" href="a04223.html#a626">s</a>.cy;
00575 <a class="code" href="a04223.html#a632">width</a> = <a class="code" href="a04223.html#a626">s</a>.cx;
00576 <a class="code" href="a04223.html#a633">height</a> = <a class="code" href="a04223.html#a626">s</a>.cy;
00577
00578 <span class="keywordflow">return</span> buf + _top * 100 + _left;
00579 }
00580
00581
00582
00583
00584 <span class="keywordtype">void</span> CFontGenerator::getKerning (<a class="code" href="a05167.html#a18">ucchar</a> left, <a class="code" href="a05167.html#a18">ucchar</a> right, <a class="code" href="a04558.html#a10">sint32</a> &kernx)
00585 {
00586 <span class="comment">/* if (!FT_HAS_KERNING(_Face))</span>
00587 <span class="comment"> {</span>
00588 <span class="comment"> kernx = 0;</span>
00589 <span class="comment"> }</span>
00590 <span class="comment"> else</span>
00591 <span class="comment"> {</span>
00592 <span class="comment"> FT_Vector kerning;</span>
00593 <span class="comment"> FT_Error error = FT_Get_Kerning (_Face, left, right, ft_kerning_default, &kerning);</span>
00594 <span class="comment"> if (error)</span>
00595 <span class="comment"> {</span>
00596 <span class="comment"> nlerror ("FT_Get_Kerning() failed: %s", getFT2Error(error));</span>
00597 <span class="comment"> }</span>
00598 <span class="comment"> kernx = kerning.x;</span>
00599 <span class="comment"> }*/</span>
00600 }
00601
00602
00603
00604 <a class="code" href="a04558.html#a11">uint32</a> CFontGenerator::getCharIndex (<a class="code" href="a05167.html#a18">ucchar</a> c)
00605 {
00606 <span class="comment">// return FT_Get_Char_Index (_Face, c);</span>
00607 <span class="keywordflow">return</span> 0;
00608 }
00609
00610
00611 } <span class="comment">// NL3D</span>
00612
00613 <span class="preprocessor">#endif // NL_DONT_USE_EXTERNAL_CODE</span>
00614 <span class="preprocessor"></span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Tue Mar 16 06:25:03 2004 for NeL by
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</a>1.3.6 </small></address>
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