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<li class="toctree-l1"><a class="reference internal" href="index.html">st7789py Driver</a></li>
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<li class="toctree-l2"><a class="reference internal" href="examples.html#ttgo-fonts-py">ttgo_fonts.py</a></li>
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</li>
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<li class="toctree-l1 current"><a class="current reference internal" href="#">Fonts</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="#rom-font-conversion">Rom Font Conversion</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#true-type-font-conversion">True-Type Font Conversion</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#x8-fonts">8x8 Fonts</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#x16-fonts">8x16 Fonts</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#id1">16x16 Fonts</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#x32-fonts">16x32 Fonts</a></li>
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<li><a href="index.html" class="icon icon-home"></a> »</li>
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<li>Fonts</li>
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<a href="_sources/fonts.rst.txt" rel="nofollow"> View page source</a>
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<div class="section" id="fonts">
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<h1>Fonts<a class="headerlink" href="#fonts" title="Permalink to this headline">¶</a></h1>
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<p>Two type of fonts are supported by this driver fixed size bitmap fonts
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converted from PC Bios images using the font_from_romfont utility and fixed or proportional fonts converted from True-Type fonts using the font2bitmap utility.</p>
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<p>The rom fonts are available in 128 and 256 PC character sets in 8x8, 8x16, 16x6 and 16x32 pixel sizes. They written using the text method.</p>
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<p>The True-Type fonts can be converted to any size as long as the widest
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character is 256 pixels or less. They are written using the write method.</p>
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<p>Pre-compiling the font files to .mpy files will significantly reduce the memory required for the fonts.</p>
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<div class="section" id="rom-font-conversion">
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<h2>Rom Font Conversion<a class="headerlink" href="#rom-font-conversion" title="Permalink to this headline">¶</a></h2>
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<p>The <cite>utils</cite> directory contains the font_from_romfont.py program used to convert PC BIOS bitmap fonts from the font-bin directory of spacerace’s
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<a class="reference external" href="https://github.com/spacerace/romfont">https://github.com/spacerace/romfont</a> repo.</p>
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<p>The utility converts all romfont bin files in the specified -input-directory (-i) and writes python font files to the specified -output-directory (-o).</p>
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<p>Characters included can be limited by using the -first-char (-f) and -last-char (-l) options.</p>
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<p>Example:</p>
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<blockquote>
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<div><p>font_from_romfont -i font-bin -o fonts -f 32 -l 127</p>
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</div></blockquote>
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<div class="literal-block-wrapper docutils container" id="id2">
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<div class="code-block-caption"><span class="caption-text">Example python font file.</span><a class="headerlink" href="#id2" title="Permalink to this code">¶</a></div>
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<div class="highlight-python notranslate"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
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<span class="normal"> 2</span>
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<span class="normal"> 3</span>
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<span class="normal"> 4</span>
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<span class="normal"> 5</span>
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<span class="normal"> 6</span>
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<span class="normal"> 7</span>
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<span class="normal"> 8</span>
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<span class="normal"> 9</span>
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<span class="normal">10</span>
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<span class="normal">11</span>
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<span class="normal">12</span>
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<span class="normal">13</span>
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<span class="normal">14</span>
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<span class="normal">15</span>
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<span class="normal">16</span>
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<span class="normal">17</span></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span class="sd">"""converted from vga_8x8.bin """</span>
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<span class="n">WIDTH</span> <span class="o">=</span> <span class="mi">8</span>
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<span class="n">HEIGHT</span> <span class="o">=</span> <span class="mi">8</span>
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<span class="n">FIRST</span> <span class="o">=</span> <span class="mh">0x20</span>
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<span class="n">LAST</span> <span class="o">=</span> <span class="mh">0x7f</span>
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<span class="n">_FONT</span> <span class="o">=</span>\
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<span class="sa">b</span><span class="s1">'</span><span class="se">\x00\x00\x00\x00\x00\x00\x00\x00</span><span class="s1">'</span>\
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<span class="sa">b</span><span class="s1">'</span><span class="se">\x18\x3c\x3c\x18\x18\x00\x18\x00</span><span class="s1">'</span>\
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<span class="sa">b</span><span class="s1">'</span><span class="se">\x66\x66\x24\x00\x00\x00\x00\x00</span><span class="s1">'</span>\
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<span class="o">...</span> <span class="n">many</span> <span class="n">more</span> <span class="n">lines</span> <span class="n">of</span> <span class="n">data</span><span class="o">...</span>
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<span class="sa">b</span><span class="s1">'</span><span class="se">\x70\x18\x18\x0e\x18\x18\x70\x00</span><span class="s1">'</span>\
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<span class="sa">b</span><span class="s1">'</span><span class="se">\x76\xdc\x00\x00\x00\x00\x00\x00</span><span class="s1">'</span>\
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<span class="sa">b</span><span class="s1">'</span><span class="se">\x00\x10\x38\x6c\xc6\xc6\xfe\x00</span><span class="s1">'</span>\
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<span class="n">FONT</span> <span class="o">=</span> <span class="nb">memoryview</span><span class="p">(</span><span class="n">_FONT</span><span class="p">)</span>
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</pre></div>
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</td></tr></table></div>
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</div>
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</div>
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<div class="section" id="true-type-font-conversion">
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<h2>True-Type Font Conversion<a class="headerlink" href="#true-type-font-conversion" title="Permalink to this headline">¶</a></h2>
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<p>The <cite>utils</cite> directory contains the <cite>font2bitmap.py</cite> program used to convert True-Type font into bitmap font modules. Use the -h option to see details of the available options. The <cite>font2bitmap.py</cite> program uses font handling classes from Dan Bader blog post on using freetype
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<a class="reference external" href="http://dbader.org/blog/monochrome-font-rendering-with-freetype-and-python">http://dbader.org/blog/monochrome-font-rendering-with-freetype-and-python</a> and
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the negative glyph.left fix from peterhinch’s font conversion program
|
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<a class="reference external" href="https://github.com/peterhinch/micropython-font-to-py">https://github.com/peterhinch/micropython-font-to-py</a>.</p>
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<p>The utility requires the python freetype module.</p>
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<p>Example use:</p>
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<ul class="simple">
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<li><p>./font2bitmap NotoSans-Regular.ttf 32 -s “0123456789ABCEDF”</p></li>
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<li><p>./font2bitmap.py Chango-Regular.ttf 16 -c 0x20-0x7f</p></li>
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</ul>
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</div>
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<div class="section" id="x8-fonts">
|
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<h2>8x8 Fonts<a class="headerlink" href="#x8-fonts" title="Permalink to this headline">¶</a></h2>
|
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<div class="figure align-center" id="id3">
|
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<img alt="_images/vga1_8x8.png" src="_images/vga1_8x8.png" />
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<p class="caption"><span class="caption-text">vga1_8x8.py: 128 Character 8x8 Font</span><a class="headerlink" href="#id3" title="Permalink to this image">¶</a></p>
|
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</div>
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<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
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<div class="figure align-center" id="id4">
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<img alt="_images/vga2_8x8.png" src="_images/vga2_8x8.png" />
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<p class="caption"><span class="caption-text">vga2_8x8.py: 256 Character 8x8 Font</span><a class="headerlink" href="#id4" title="Permalink to this image">¶</a></p>
|
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</div>
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<div class="line-block">
|
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<div class="line"><br /></div>
|
||
</div>
|
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</div>
|
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<div class="section" id="x16-fonts">
|
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<h2>8x16 Fonts<a class="headerlink" href="#x16-fonts" title="Permalink to this headline">¶</a></h2>
|
||
<div class="figure align-center" id="id5">
|
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<img alt="_images/vga1_8x16.png" src="_images/vga1_8x16.png" />
|
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<p class="caption"><span class="caption-text">vga1_8x16.py: 128 Character 8x16 Font</span><a class="headerlink" href="#id5" title="Permalink to this image">¶</a></p>
|
||
</div>
|
||
<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
||
<div class="figure align-center" id="id6">
|
||
<img alt="_images/vga2_8x16.png" src="_images/vga2_8x16.png" />
|
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<p class="caption"><span class="caption-text">vga2_8x16.py: 256 Character 8x16 Font</span><a class="headerlink" href="#id6" title="Permalink to this image">¶</a></p>
|
||
</div>
|
||
<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
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</div>
|
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<div class="section" id="id1">
|
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<h2>16x16 Fonts<a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h2>
|
||
<div class="figure align-center" id="id7">
|
||
<img alt="_images/vga1_16x16.png" src="_images/vga1_16x16.png" />
|
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<p class="caption"><span class="caption-text">vga1_16x16.py: 128 Character 16x16 Thin Font</span><a class="headerlink" href="#id7" title="Permalink to this image">¶</a></p>
|
||
</div>
|
||
<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
||
<div class="figure align-center" id="id8">
|
||
<img alt="_images/vga1_bold_16x16.png" src="_images/vga1_bold_16x16.png" />
|
||
<p class="caption"><span class="caption-text">vga1_bold_16x16.py: 128 Character 16x16 Bold Font</span><a class="headerlink" href="#id8" title="Permalink to this image">¶</a></p>
|
||
</div>
|
||
<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
||
<div class="figure align-center" id="id9">
|
||
<img alt="_images/vga2_16x16.png" src="_images/vga2_16x16.png" />
|
||
<p class="caption"><span class="caption-text">vga2_16x16.py: 256 Character 16x16 Thin Font</span><a class="headerlink" href="#id9" title="Permalink to this image">¶</a></p>
|
||
</div>
|
||
<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
||
<div class="figure align-center" id="id10">
|
||
<img alt="_images/vga2_bold_16x16.png" src="_images/vga2_bold_16x16.png" />
|
||
<p class="caption"><span class="caption-text">vga2_bold_16x16.py: 256 Character 16x16 Bold Font</span><a class="headerlink" href="#id10" title="Permalink to this image">¶</a></p>
|
||
</div>
|
||
<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="x32-fonts">
|
||
<h2>16x32 Fonts<a class="headerlink" href="#x32-fonts" title="Permalink to this headline">¶</a></h2>
|
||
<div class="figure align-center" id="id11">
|
||
<img alt="_images/vga1_16x32.png" src="_images/vga1_16x32.png" />
|
||
<p class="caption"><span class="caption-text">vga1_16x32.py: 128 Character 16x32 Thin Font</span><a class="headerlink" href="#id11" title="Permalink to this image">¶</a></p>
|
||
</div>
|
||
<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
||
<div class="figure align-center" id="id12">
|
||
<img alt="_images/vga1_bold_16x32.png" src="_images/vga1_bold_16x32.png" />
|
||
<p class="caption"><span class="caption-text">vga1_bold_16x32.py: 128 Character 16x32 Bold Font</span><a class="headerlink" href="#id12" title="Permalink to this image">¶</a></p>
|
||
</div>
|
||
<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
||
<div class="figure align-center" id="id13">
|
||
<img alt="_images/vga2_16x32.png" src="_images/vga2_16x32.png" />
|
||
<p class="caption"><span class="caption-text">vga2_16x32.py: 256 Character 16x32 Thin Font</span><a class="headerlink" href="#id13" title="Permalink to this image">¶</a></p>
|
||
</div>
|
||
<div class="line-block">
|
||
<div class="line"><br /></div>
|
||
</div>
|
||
<div class="figure align-center" id="id14">
|
||
<img alt="_images/vga2_bold_16x32.png" src="_images/vga2_bold_16x32.png" />
|
||
<p class="caption"><span class="caption-text">vga2_bold_16x32.py: 256 Character 16x32 Bold Font</span><a class="headerlink" href="#id14" title="Permalink to this image">¶</a></p>
|
||
</div>
|
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|
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