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Timo Lang 42b6e3af36 Updated docu.
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<div class="textblock"><code>#include &quot;<a class="el" href="tft_8h_source.html">tft.h</a>&quot;</code><br />
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<code>#include &quot;<a class="el" href="numupdown_8h_source.html">numupdown.h</a>&quot;</code><br />
<code>#include &lt;stdio.h&gt;</code><br />
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Include dependency graph for numupdown.c:</div>
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<tr class="memitem:a1ebc507af747f5594ea2251c0d5b23e4"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="numupdown_8c.html#a1ebc507af747f5594ea2251c0d5b23e4">BASE_COLOR</a>&#160;&#160;&#160;<a class="el" href="group__tft.html#ga4a118ad3ee36468a3fa616977a64864e">RGB</a>(90,90,90)</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a47b81268e10355aa5abbb05788e99dfc"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="numupdown_8c.html#a47b81268e10355aa5abbb05788e99dfc">button_up_cb</a> (void *button)</td></tr>
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<tr class="memitem:a0422809516212448deaf10314d0c01d5"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="numupdown_8c.html#a0422809516212448deaf10314d0c01d5">button_down_cb</a> (void *button)</td></tr>
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<tr class="memitem:a9f47a5adddb4640cdd37b578484abfa8"><td class="memItemLeft" align="right" valign="top">static uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="numupdown_8c.html#a9f47a5adddb4640cdd37b578484abfa8">calc_text_width</a> (int16_t val)</td></tr>
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<tr class="memitem:gab4321e7fc0810ee30355bc7d0a3372db"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__numupdown.html#gab4321e7fc0810ee30355bc7d0a3372db">gui_numupdown_add</a> (<a class="el" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a> *numupdown)</td></tr>
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<tr class="memitem:ga9470a5c6f0ffbbda7c56e1b8a59f4b97"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__numupdown.html#ga9470a5c6f0ffbbda7c56e1b8a59f4b97">gui_numupdown_remove</a> (<a class="el" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a> *numupdown)</td></tr>
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<tr class="memitem:ga4ee98a6c6af451123af6c464a851c03a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__numupdown.html#ga4ee98a6c6af451123af6c464a851c03a">gui_numupdown_redraw</a> (<a class="el" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a> *numupdown)</td></tr>
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<tr class="memitem:ga99d528cc9828d6dcf46e04673e5e51d9"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__numupdown.html#ga99d528cc9828d6dcf46e04673e5e51d9">gui_numupdown_update</a> (<a class="el" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a> *numupdown)</td></tr>
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<td class="memname">#define BASE_COLOR&#160;&#160;&#160;<a class="el" href="group__tft.html#ga4a118ad3ee36468a3fa616977a64864e">RGB</a>(90,90,90)</td>
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<p>Definition at line <a class="el" href="numupdown_8c_source.html#l00031">31</a> of file <a class="el" href="numupdown_8c_source.html">numupdown.c</a>.</p>
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<td class="memname">void button_down_cb </td>
<td>(</td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>button</em></td><td>)</td>
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<p>Definition at line <a class="el" href="numupdown_8c_source.html#l00050">50</a> of file <a class="el" href="numupdown_8c_source.html">numupdown.c</a>.</p>
<div class="fragment"><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;{</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="comment">//Get the pointer to the numupdown: subtract the offset of the buttonDown member in the struct from the button pointer</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a>* element = button - offsetof(<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a>, buttonDown);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keywordflow">if</span> (element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a7375fa3485ce43bbc621f90ce895d52a">value</a> &gt; element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a29dc67311876da954d1fb5911f161fed">min</a>) { <span class="comment">//old value lies above the minimum</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a7375fa3485ce43bbc621f90ce895d52a">value</a>--; <span class="comment">//let&#39;s decrease the value</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <a class="code" href="group__numupdown.html#ga99d528cc9828d6dcf46e04673e5e51d9">gui_numupdown_update</a>(element); <span class="comment">//and redraw everything</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keywordflow">if</span> (element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a70d80bf3a066e14217829f05fa3600f8">callback</a> != NULL) { <span class="comment">//the user provided a callback</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a70d80bf3a066e14217829f05fa3600f8">callback</a>(element, element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a7375fa3485ce43bbc621f90ce895d52a">value</a>); <span class="comment">//Call the user callback with the new value</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; }</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; }</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;}</div>
<div class="ttc" id="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t_html_a70d80bf3a066e14217829f05fa3600f8"><div class="ttname"><a href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a70d80bf3a066e14217829f05fa3600f8">NUMUPDOWN_STRUCT::callback</a></div><div class="ttdeci">NUMUPDOWN_CALLBACK callback</div><div class="ttdoc">Callback which is executed when the value changes. </div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8h_source.html#l00055">numupdown.h:55</a></div></div>
<div class="ttc" id="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t_html"><div class="ttname"><a href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a></div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8h_source.html#l00048">numupdown.h:48</a></div></div>
<div class="ttc" id="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t_html_a29dc67311876da954d1fb5911f161fed"><div class="ttname"><a href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a29dc67311876da954d1fb5911f161fed">NUMUPDOWN_STRUCT::min</a></div><div class="ttdeci">int16_t min</div><div class="ttdoc">The minimum possible value (inclusive) </div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8h_source.html#l00053">numupdown.h:53</a></div></div>
<div class="ttc" id="group__numupdown_html_ga99d528cc9828d6dcf46e04673e5e51d9"><div class="ttname"><a href="group__numupdown.html#ga99d528cc9828d6dcf46e04673e5e51d9">gui_numupdown_update</a></div><div class="ttdeci">void gui_numupdown_update(NUMUPDOWN_STRUCT *numupdown)</div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8c_source.html#l00154">numupdown.c:154</a></div></div>
<div class="ttc" id="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t_html_a7375fa3485ce43bbc621f90ce895d52a"><div class="ttname"><a href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a7375fa3485ce43bbc621f90ce895d52a">NUMUPDOWN_STRUCT::value</a></div><div class="ttdeci">int16_t value</div><div class="ttdoc">The current/default value. </div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8h_source.html#l00052">numupdown.h:52</a></div></div>
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Here is the caller graph for this function:</div>
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<td class="memname">void button_up_cb </td>
<td>(</td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>button</em></td><td>)</td>
<td></td>
</tr>
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<p>Definition at line <a class="el" href="numupdown_8c_source.html#l00034">34</a> of file <a class="el" href="numupdown_8c_source.html">numupdown.c</a>.</p>
<div class="fragment"><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;{</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="comment">//Get the pointer to the numupdown: subtract the offset of the buttonUp member in the struct from the button pointer</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a>* element = button - offsetof(<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a>, buttonUp);</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keywordflow">if</span> (element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a7375fa3485ce43bbc621f90ce895d52a">value</a> &lt; element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a43a190f55cab9276eb1d6b6a4f453ccf">max</a>) { <span class="comment">//old value lies below the maximum</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a7375fa3485ce43bbc621f90ce895d52a">value</a>++; <span class="comment">//let&#39;s increase the value</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <a class="code" href="group__numupdown.html#ga99d528cc9828d6dcf46e04673e5e51d9">gui_numupdown_update</a>(element); <span class="comment">//and redraw everything</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keywordflow">if</span> (element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a70d80bf3a066e14217829f05fa3600f8">callback</a> != NULL) { <span class="comment">//the user provided a callback</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a70d80bf3a066e14217829f05fa3600f8">callback</a>(element, element-&gt;<a class="code" href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a7375fa3485ce43bbc621f90ce895d52a">value</a>); <span class="comment">//Call the user callback with the new value</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; }</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; }</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;}</div>
<div class="ttc" id="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t_html_a70d80bf3a066e14217829f05fa3600f8"><div class="ttname"><a href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a70d80bf3a066e14217829f05fa3600f8">NUMUPDOWN_STRUCT::callback</a></div><div class="ttdeci">NUMUPDOWN_CALLBACK callback</div><div class="ttdoc">Callback which is executed when the value changes. </div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8h_source.html#l00055">numupdown.h:55</a></div></div>
<div class="ttc" id="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t_html_a43a190f55cab9276eb1d6b6a4f453ccf"><div class="ttname"><a href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a43a190f55cab9276eb1d6b6a4f453ccf">NUMUPDOWN_STRUCT::max</a></div><div class="ttdeci">int16_t max</div><div class="ttdoc">The maximum possible value (inclusive) </div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8h_source.html#l00054">numupdown.h:54</a></div></div>
<div class="ttc" id="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t_html"><div class="ttname"><a href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html">NUMUPDOWN_STRUCT</a></div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8h_source.html#l00048">numupdown.h:48</a></div></div>
<div class="ttc" id="group__numupdown_html_ga99d528cc9828d6dcf46e04673e5e51d9"><div class="ttname"><a href="group__numupdown.html#ga99d528cc9828d6dcf46e04673e5e51d9">gui_numupdown_update</a></div><div class="ttdeci">void gui_numupdown_update(NUMUPDOWN_STRUCT *numupdown)</div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8c_source.html#l00154">numupdown.c:154</a></div></div>
<div class="ttc" id="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t_html_a7375fa3485ce43bbc621f90ce895d52a"><div class="ttname"><a href="struct_n_u_m_u_p_d_o_w_n___s_t_r_u_c_t.html#a7375fa3485ce43bbc621f90ce895d52a">NUMUPDOWN_STRUCT::value</a></div><div class="ttdeci">int16_t value</div><div class="ttdoc">The current/default value. </div><div class="ttdef"><b>Definition:</b> <a href="numupdown_8h_source.html#l00052">numupdown.h:52</a></div></div>
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<td class="memname">static uint8_t calc_text_width </td>
<td>(</td>
<td class="paramtype">int16_t&#160;</td>
<td class="paramname"><em>val</em></td><td>)</td>
<td></td>
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<p>Definition at line <a class="el" href="numupdown_8c_source.html#l00066">66</a> of file <a class="el" href="numupdown_8c_source.html">numupdown.c</a>.</p>
<div class="fragment"><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;{</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; uint8_t <a class="code" href="struct_block.html#ad0eab1042455a2067c812ab8071d5376">width</a> = 1 + (val &lt; 0); <span class="comment">//1 if positive, 2 if negative (to let space for sign)</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; val = abs(val); <span class="comment">//Make the number positive</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordflow">while</span> (val &gt;= 10) { <span class="comment">//while we have two or more digits</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; val /= 10; <span class="comment">//remove one digit</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; width++; <span class="comment">//add one character</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; }</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordflow">return</span> <a class="code" href="struct_block.html#ad0eab1042455a2067c812ab8071d5376">width</a>;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;}</div>
<div class="ttc" id="struct_block_html_ad0eab1042455a2067c812ab8071d5376"><div class="ttname"><a href="struct_block.html#ad0eab1042455a2067c812ab8071d5376">Block::width</a></div><div class="ttdeci">uint16_t width</div><div class="ttdef"><b>Definition:</b> <a href="pixy_8h_source.html#l00082">pixy.h:82</a></div></div>
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