libctru/graphics_2printing_2system-font_2source_2main_8c-example.html
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&#160;<span id="projectnumber">v2.4.1</span>
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<div class="title">graphics/printing/system-font/source/main.c</div> </div>
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<div class="contents">
<div class="fragment"><div class="line"><span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><span class="preprocessor">#include &lt;<a class="code" href="3ds_8h.html">3ds.h</a>&gt;</span></div>
<div class="line"><span class="preprocessor">#include &lt;citro2d.h&gt;</span></div>
<div class="line"> </div>
<div class="line"><span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> teststring[] =</div>
<div class="line"> <span class="stringliteral">&quot;Hello World - now with citro2d!\n&quot;</span></div>
<div class="line"> <span class="stringliteral">&quot;The quick brown fox jumps over the lazy dog.\n&quot;</span></div>
<div class="line"> <span class="stringliteral">&quot;\n&quot;</span></div>
<div class="line"> <span class="stringliteral">&quot;En français: Vous ne devez pas éteindre votre console.\n&quot;</span></div>
<div class="line"> <span class="stringliteral">&quot;日本語文章を見せるのも出来ますよ。\n&quot;</span></div>
<div class="line"> <span class="stringliteral">&quot;Un poco de texto en español nunca queda mal.\n&quot;</span></div>
<div class="line"> <span class="stringliteral">&quot;Πού είναι η τουαλέτα;\n&quot;</span></div>
<div class="line"> <span class="stringliteral">&quot;Я очень рад, ведь я, наконец, возвращаюсь домой\n&quot;</span>;</div>
<div class="line"> </div>
<div class="line">C2D_TextBuf g_staticBuf, g_dynamicBuf;</div>
<div class="line">C2D_Text g_staticText[4];</div>
<div class="line"> </div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> sceneInit(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> <span class="comment">// Create two text buffers: one for static text, and another one for</span></div>
<div class="line"> <span class="comment">// dynamic text - the latter will be cleared at each frame.</span></div>
<div class="line"> g_staticBuf = C2D_TextBufNew(4096); <span class="comment">// support up to 4096 glyphs in the buffer</span></div>
<div class="line"> g_dynamicBuf = C2D_TextBufNew(4096);</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Parse the static text strings</span></div>
<div class="line"> C2D_TextParse(&amp;g_staticText[0], g_staticBuf, teststring);</div>
<div class="line"> C2D_TextParse(&amp;g_staticText[1], g_staticBuf, <span class="stringliteral">&quot;I am red skinny text!&quot;</span>);</div>
<div class="line"> C2D_TextParse(&amp;g_staticText[2], g_staticBuf, <span class="stringliteral">&quot;I am blue fat text!&quot;</span>);</div>
<div class="line"> C2D_TextParse(&amp;g_staticText[3], g_staticBuf, <span class="stringliteral">&quot;I am justified text!&quot;</span>);</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Optimize the static text strings</span></div>
<div class="line"> C2D_TextOptimize(&amp;g_staticText[0]);</div>
<div class="line"> C2D_TextOptimize(&amp;g_staticText[1]);</div>
<div class="line"> C2D_TextOptimize(&amp;g_staticText[2]);</div>
<div class="line"> C2D_TextOptimize(&amp;g_staticText[3]);</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> sceneRender(<span class="keywordtype">float</span> size)</div>
<div class="line">{</div>
<div class="line"> <span class="comment">// Clear the dynamic text buffer</span></div>
<div class="line"> C2D_TextBufClear(g_dynamicBuf);</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Draw static text strings</span></div>
<div class="line"> C2D_DrawText(&amp;g_staticText[0], 0, 8.0f, 8.0f, 0.5f, size, size);</div>
<div class="line"> C2D_DrawText(&amp;g_staticText[1], C2D_AtBaseline | C2D_WithColor, 16.0f, 210.0f, 0.5f, 0.5f, 0.75f, C2D_Color32f(1.0f,0.0f,0.0f,1.0f));</div>
<div class="line"> C2D_DrawText(&amp;g_staticText[2], C2D_AtBaseline | C2D_WithColor | C2D_AlignRight, 384.0f, 210.0f, 0.5f, 0.75f, 0.5f, C2D_Color32f(0.0f,0.0f,1.0f,0.625f));</div>
<div class="line"> C2D_DrawText(&amp;g_staticText[3], C2D_AtBaseline | C2D_AlignJustified | C2D_WordWrap, 100.0f, 170.0f, 0.5f, 0.75f, 0.75f, 200.0f);</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Generate and draw dynamic text</span></div>
<div class="line"> <span class="keywordtype">char</span> buf[160];</div>
<div class="line"> C2D_Text dynText;</div>
<div class="line"> snprintf(buf, <span class="keyword">sizeof</span>(buf), <span class="stringliteral">&quot;Current text size: %f (Use  to change)&quot;</span>, size);</div>
<div class="line"> C2D_TextParse(&amp;dynText, g_dynamicBuf, buf);</div>
<div class="line"> C2D_TextOptimize(&amp;dynText);</div>
<div class="line"> C2D_DrawText(&amp;dynText, C2D_AlignCenter, 200.0f, 220.0f, 0.5f, 0.5f, 0.5f);</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> sceneExit(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> <span class="comment">// Delete the text buffers</span></div>
<div class="line"> C2D_TextBufDelete(g_dynamicBuf);</div>
<div class="line"> C2D_TextBufDelete(g_staticBuf);</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">int</span> main()</div>
<div class="line">{</div>
<div class="line"> <span class="comment">// Initialize the libs</span></div>
<div class="line"> <a name="a0"></a><a class="code" href="gfx_8h.html#a236a005ae029247c8bfe4a4a649206fc">gfxInitDefault</a>();</div>
<div class="line"> C3D_Init(C3D_DEFAULT_CMDBUF_SIZE);</div>
<div class="line"> C2D_Init(C2D_DEFAULT_MAX_OBJECTS);</div>
<div class="line"> C2D_Prepare();</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Create screen</span></div>
<div class="line"> C3D_RenderTarget* top = C2D_CreateScreenTarget(<a name="a1"></a><a class="code" href="gfx_8h.html#a356112d87f5cf6bbba3ea3b6b010e09caf9d44178134d07cf9c5923200e14af09">GFX_TOP</a>, <a name="a2"></a><a class="code" href="gfx_8h.html#ab9bacc1d598f0f6e4d5ef8bbeb466b03a1bfda6a35adc49eb4631246ea4e637e1">GFX_LEFT</a>);</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Initialize the scene</span></div>
<div class="line"> sceneInit();</div>
<div class="line"> </div>
<div class="line"> <span class="keywordtype">float</span> size = 0.5f;</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Main loop</span></div>
<div class="line"> <span class="keywordflow">while</span> (<a name="a3"></a><a class="code" href="apt_8h.html#a84808c36d9a8c389896ecf241c7f89cb">aptMainLoop</a>())</div>
<div class="line"> {</div>
<div class="line"> <a name="a4"></a><a class="code" href="hid_8h.html#abbbf0e1f3a79a75e459e19f85a66bee6">hidScanInput</a>();</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Respond to user input</span></div>
<div class="line"> <a class="code" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> kDown = <a name="a5"></a><a class="code" href="hid_8h.html#aa2cababf764bf0b4297dc2e2fffe2a76">hidKeysDown</a>();</div>
<div class="line"> <a class="code" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> kHeld = <a name="a6"></a><a class="code" href="hid_8h.html#a68e8fd75a99650db835f045676a47949">hidKeysHeld</a>();</div>
<div class="line"> <span class="keywordflow">if</span> (kDown &amp; <a name="a7"></a><a class="code" href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493a616a1f5c4ed36080ca954453084aea3b">KEY_START</a>)</div>
<div class="line"> <span class="keywordflow">break</span>; <span class="comment">// break in order to return to hbmenu</span></div>
<div class="line"> </div>
<div class="line"> <span class="keywordflow">if</span> (kHeld &amp; <a name="a8"></a><a class="code" href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493aece16de35a5ea11f9b228c9376bebc62">KEY_L</a>)</div>
<div class="line"> size -= 1.0f/128;</div>
<div class="line"> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (kHeld &amp; <a name="a9"></a><a class="code" href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493aa3ec8a2ffd5b0e200db5ebe7b65515ff">KEY_R</a>)</div>
<div class="line"> size += 1.0f/128;</div>
<div class="line"> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (kHeld &amp; <a name="a10"></a><a class="code" href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493a480a807305121d41673b8c208898f497">KEY_X</a>)</div>
<div class="line"> size = 0.5f;</div>
<div class="line"> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (kHeld &amp; <a name="a11"></a><a class="code" href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493a5d44524b2a6090fa97aa9353d69f67a3">KEY_Y</a>)</div>
<div class="line"> size = 1.0f;</div>
<div class="line"> </div>
<div class="line"> <span class="keywordflow">if</span> (size &lt; 0.25f)</div>
<div class="line"> size = 0.25f;</div>
<div class="line"> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (size &gt; 2.0f)</div>
<div class="line"> size = 2.0f;</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Render the scene</span></div>
<div class="line"> C3D_FrameBegin(C3D_FRAME_SYNCDRAW);</div>
<div class="line"> C2D_TargetClear(top, C2D_Color32(0x68, 0xB0, 0xD8, 0xFF));</div>
<div class="line"> C2D_SceneBegin(top);</div>
<div class="line"> sceneRender(size);</div>
<div class="line"> C3D_FrameEnd(0);</div>
<div class="line"> }</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Deinitialize the scene</span></div>
<div class="line"> sceneExit();</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Deinitialize the libs</span></div>
<div class="line"> C2D_Fini();</div>
<div class="line"> C3D_Fini();</div>
<div class="line"> <a name="a12"></a><a class="code" href="gfx_8h.html#aa446ccfdfdd4c575e648956ae96f2a3b">gfxExit</a>();</div>
<div class="line"> <span class="keywordflow">return</span> 0;</div>
<div class="line">}</div>
<div class="ttc" id="a3ds_8h_html"><div class="ttname"><a href="3ds_8h.html">3ds.h</a></div><div class="ttdoc">Central 3DS header.</div></div>
<div class="ttc" id="aapt_8h_html_a84808c36d9a8c389896ecf241c7f89cb"><div class="ttname"><a href="apt_8h.html#a84808c36d9a8c389896ecf241c7f89cb">aptMainLoop</a></div><div class="ttdeci">bool aptMainLoop(void)</div><div class="ttdoc">Main function which handles sleep mode and HOME/power buttons - call this at the beginning of every f...</div></div>
<div class="ttc" id="agfx_8h_html_a236a005ae029247c8bfe4a4a649206fc"><div class="ttname"><a href="gfx_8h.html#a236a005ae029247c8bfe4a4a649206fc">gfxInitDefault</a></div><div class="ttdeci">void gfxInitDefault(void)</div><div class="ttdoc">Initializes the LCD framebuffers with default parameters This is equivalent to calling:</div></div>
<div class="ttc" id="agfx_8h_html_a356112d87f5cf6bbba3ea3b6b010e09caf9d44178134d07cf9c5923200e14af09"><div class="ttname"><a href="gfx_8h.html#a356112d87f5cf6bbba3ea3b6b010e09caf9d44178134d07cf9c5923200e14af09">GFX_TOP</a></div><div class="ttdeci">@ GFX_TOP</div><div class="ttdoc">Top screen.</div><div class="ttdef"><b>Definition:</b> gfx.h:26</div></div>
<div class="ttc" id="agfx_8h_html_aa446ccfdfdd4c575e648956ae96f2a3b"><div class="ttname"><a href="gfx_8h.html#aa446ccfdfdd4c575e648956ae96f2a3b">gfxExit</a></div><div class="ttdeci">void gfxExit(void)</div><div class="ttdoc">Deinitializes and frees the LCD framebuffers.</div></div>
<div class="ttc" id="agfx_8h_html_ab9bacc1d598f0f6e4d5ef8bbeb466b03a1bfda6a35adc49eb4631246ea4e637e1"><div class="ttname"><a href="gfx_8h.html#ab9bacc1d598f0f6e4d5ef8bbeb466b03a1bfda6a35adc49eb4631246ea4e637e1">GFX_LEFT</a></div><div class="ttdeci">@ GFX_LEFT</div><div class="ttdoc">Left eye framebuffer.</div><div class="ttdef"><b>Definition:</b> gfx.h:37</div></div>
<div class="ttc" id="ahid_8h_html_a531c35e38ede3ea4e5ba5afb24b29493a480a807305121d41673b8c208898f497"><div class="ttname"><a href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493a480a807305121d41673b8c208898f497">KEY_X</a></div><div class="ttdeci">@ KEY_X</div><div class="ttdoc">X.</div><div class="ttdef"><b>Definition:</b> hid.h:22</div></div>
<div class="ttc" id="ahid_8h_html_a531c35e38ede3ea4e5ba5afb24b29493a5d44524b2a6090fa97aa9353d69f67a3"><div class="ttname"><a href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493a5d44524b2a6090fa97aa9353d69f67a3">KEY_Y</a></div><div class="ttdeci">@ KEY_Y</div><div class="ttdoc">Y.</div><div class="ttdef"><b>Definition:</b> hid.h:23</div></div>
<div class="ttc" id="ahid_8h_html_a531c35e38ede3ea4e5ba5afb24b29493a616a1f5c4ed36080ca954453084aea3b"><div class="ttname"><a href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493a616a1f5c4ed36080ca954453084aea3b">KEY_START</a></div><div class="ttdeci">@ KEY_START</div><div class="ttdoc">Start.</div><div class="ttdef"><b>Definition:</b> hid.h:15</div></div>
<div class="ttc" id="ahid_8h_html_a531c35e38ede3ea4e5ba5afb24b29493aa3ec8a2ffd5b0e200db5ebe7b65515ff"><div class="ttname"><a href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493aa3ec8a2ffd5b0e200db5ebe7b65515ff">KEY_R</a></div><div class="ttdeci">@ KEY_R</div><div class="ttdoc">R.</div><div class="ttdef"><b>Definition:</b> hid.h:20</div></div>
<div class="ttc" id="ahid_8h_html_a531c35e38ede3ea4e5ba5afb24b29493aece16de35a5ea11f9b228c9376bebc62"><div class="ttname"><a href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493aece16de35a5ea11f9b228c9376bebc62">KEY_L</a></div><div class="ttdeci">@ KEY_L</div><div class="ttdoc">L.</div><div class="ttdef"><b>Definition:</b> hid.h:21</div></div>
<div class="ttc" id="ahid_8h_html_a68e8fd75a99650db835f045676a47949"><div class="ttname"><a href="hid_8h.html#a68e8fd75a99650db835f045676a47949">hidKeysHeld</a></div><div class="ttdeci">u32 hidKeysHeld(void)</div><div class="ttdoc">Returns a bitmask of held buttons.</div></div>
<div class="ttc" id="ahid_8h_html_aa2cababf764bf0b4297dc2e2fffe2a76"><div class="ttname"><a href="hid_8h.html#aa2cababf764bf0b4297dc2e2fffe2a76">hidKeysDown</a></div><div class="ttdeci">u32 hidKeysDown(void)</div><div class="ttdoc">Returns a bitmask of newly pressed buttons, this frame.</div></div>
<div class="ttc" id="ahid_8h_html_abbbf0e1f3a79a75e459e19f85a66bee6"><div class="ttname"><a href="hid_8h.html#abbbf0e1f3a79a75e459e19f85a66bee6">hidScanInput</a></div><div class="ttdeci">void hidScanInput(void)</div><div class="ttdoc">Scans HID for input data.</div></div>
<div class="ttc" id="atypes_8h_html_afaa62991928fb9fb18ff0db62a040aba"><div class="ttname"><a href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a></div><div class="ttdeci">uint32_t u32</div><div class="ttdoc">32-bit unsigned integer</div><div class="ttdef"><b>Definition:</b> types.h:23</div></div>
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