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arduinolibs/Field_8cpp_source.html
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2013-09-29 09:34:55 +10:00

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<div class="title">Field.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Copyright (C) 2012 Southern Storm Software, Pty Ltd.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> * copy of this software and associated documentation files (the &quot;Software&quot;),</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> * in all copies or substantial portions of the Software.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &quot;Field.h&quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;</div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="classField.html#ac4ea0d104376233c3f0bfc080ec8564e"> 40</a></span>&#160;<a class="code" href="classField.html#ac4ea0d104376233c3f0bfc080ec8564e" title="Constructs a new field with a specific label.">Field::Field</a>(<span class="keyword">const</span> String &amp;label)</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; : _label(label)</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; , _form(0)</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; , next(0)</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; , prev(0)</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="line"><a name="l00052"></a><span class="lineno"><a class="code" href="classField.html#a7e2bdb203ddfd9219696f263c1731fe7"> 52</a></span>&#160;<a class="code" href="classField.html#ac4ea0d104376233c3f0bfc080ec8564e" title="Constructs a new field with a specific label.">Field::Field</a>(<a class="code" href="classForm.html" title="Manager for a form containing data input/output fields.">Form</a> &amp;form, <span class="keyword">const</span> String &amp;label)</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; : _label(label)</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; , _form(0)</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; , next(0)</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; , prev(0)</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;{</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; form.<a class="code" href="classForm.html#a5cb056ace428e75e321610555bfecac7" title="Adds field to this form.">addField</a>(<span class="keyword">this</span>);</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;}</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div>
<div class="line"><a name="l00066"></a><span class="lineno"><a class="code" href="classField.html#a45d6e6d09b8f8e46de62b40119d62c60"> 66</a></span>&#160;<a class="code" href="classField.html#a45d6e6d09b8f8e46de62b40119d62c60" title="Destroys this field and removes it from its owning Form.">Field::~Field</a>()</div>
<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; <span class="keywordflow">if</span> (_form)</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; _form-&gt;<a class="code" href="classForm.html#a7abd717029f9b19ee7318470072cd697" title="Removes field from this form.">removeField</a>(<span class="keyword">this</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;</div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="code" href="classField.html#a061bd1ed4d8b079df86465df8facd3b3"> 96</a></span>&#160;<span class="keywordtype">int</span> <a class="code" href="classField.html#a061bd1ed4d8b079df86465df8facd3b3" title="Dispatches event via this field.">Field::dispatch</a>(<span class="keywordtype">int</span> event)</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;{</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="comment">// Nothing to do here.</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;}</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;</div>
<div class="line"><a name="l00116"></a><span class="lineno"><a class="code" href="classField.html#aa032bbeacb405c56546cb56fbbee94f5"> 116</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classField.html#aa032bbeacb405c56546cb56fbbee94f5" title="Enters the field due to form navigation.">Field::enterField</a>(<span class="keywordtype">bool</span> reverse)</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;{</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <a class="code" href="classField.html#a5cf21bf958a71e51feac9e1bf9f599d1" title="Returns the LCD that this field is being drawn on.">lcd</a>()-&gt;print(_label);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;}</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;</div>
<div class="line"><a name="l00129"></a><span class="lineno"><a class="code" href="classField.html#ad6805c75ee1e62f8cd8bd550c4530c07"> 129</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classField.html#ad6805c75ee1e62f8cd8bd550c4530c07" title="Exits the field due to form navigation.">Field::exitField</a>()</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;{</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="comment">// Nothing to do here.</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;}</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;</div>
<div class="line"><a name="l00146"></a><span class="lineno"><a class="code" href="classField.html#ad4ea63599d780c35b296cf2840b69f7b"> 146</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classField.html#ad4ea63599d780c35b296cf2840b69f7b" title="Sets the label to display in the first line of this field.">Field::setLabel</a>(<span class="keyword">const</span> String &amp;label)</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;{</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="classField.html#a25d86a67b321e8c642edf75a10a35f72" title="Returns true if this field is the currently-displayed field in its owning form; false otherwise...">isCurrent</a>()) {</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> prevLen = _label.length();</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> newLen = label.length();</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; _label = <a class="code" href="classField.html#aaa861ef917130c989a955bc75c683afe" title="Returns the label to display in the first line of this field.">label</a>;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <a class="code" href="classField.html#a5cf21bf958a71e51feac9e1bf9f599d1" title="Returns the LCD that this field is being drawn on.">lcd</a>()-&gt;setCursor(0, 0);</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <a class="code" href="classField.html#a5cf21bf958a71e51feac9e1bf9f599d1" title="Returns the LCD that this field is being drawn on.">lcd</a>()-&gt;print(label);</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keywordflow">while</span> (newLen++ &lt; prevLen)</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <a class="code" href="classField.html#a5cf21bf958a71e51feac9e1bf9f599d1" title="Returns the LCD that this field is being drawn on.">lcd</a>()-&gt;write(<span class="charliteral">&#39; &#39;</span>);</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <a class="code" href="classField.html#afc612378167be0e7f8a6f8395b3537bd" title="Updates the cursor position after the label has been drawn by setLabel().">updateCursor</a>();</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; _label = <a class="code" href="classField.html#aaa861ef917130c989a955bc75c683afe" title="Returns the label to display in the first line of this field.">label</a>;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; }</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;}</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;</div>
<div class="line"><a name="l00169"></a><span class="lineno"><a class="code" href="classField.html#a25d86a67b321e8c642edf75a10a35f72"> 169</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="classField.html#a25d86a67b321e8c642edf75a10a35f72" title="Returns true if this field is the currently-displayed field in its owning form; false otherwise...">Field::isCurrent</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordflow">if</span> (!_form-&gt;<a class="code" href="classForm.html#a3101f288e3e5aa8307c57f35861ad587" title="Returns true if the form is shown; false if the form is hidden.">isVisible</a>())</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keywordflow">return</span> _form-&gt;<a class="code" href="classForm.html#a85a219a73294cef1f89a2182b5c25bf8" title="Returns the current field that is displayed on-screen.">currentField</a>() == <span class="keyword">this</span>;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;}</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;</div>
<div class="line"><a name="l00191"></a><span class="lineno"><a class="code" href="classField.html#afc612378167be0e7f8a6f8395b3537bd"> 191</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classField.html#afc612378167be0e7f8a6f8395b3537bd" title="Updates the cursor position after the label has been drawn by setLabel().">Field::updateCursor</a>()</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;{</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="comment">// Nothing to do here.</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160;}</div>
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