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DISTRHO Plugin Framework
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  80. <div id="nav-path" class="navpath">

  81.   <ul>

  82. <li class="navelem"><a class="el" href="dir_99893ac99dd47c2a73745483a12a725f.html">dgl</a></li>  </ul>

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  84. </div><!-- top -->

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  86.   <div class="headertitle">

  87. <div class="title">ImageKnob.hpp</div>  </div>

  88. </div><!--header-->

  89. <div class="contents">

  90. <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div>

  91. <div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * DISTRHO Plugin Framework (DPF)</span></div>

  92. <div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 2012-2014 Filipe Coelho &lt;falktx@falktx.com&gt;</span></div>

  93. <div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div>

  94. <div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Permission to use, copy, modify, and/or distribute this software for any purpose with</span></div>

  95. <div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * or without fee is hereby granted, provided that the above copyright notice and this</span></div>

  96. <div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * permission notice appear in all copies.</span></div>

  97. <div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *</span></div>

  98. <div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot; AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD</span></div>

  99. <div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN</span></div>

  100. <div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL</span></div>

  101. <div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER</span></div>

  102. <div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN</span></div>

  103. <div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>

  104. <div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> */</span></div>

  105. <div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div>

  106. <div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#ifndef DGL_IMAGE_KNOB_HPP_INCLUDED</span></div>

  107. <div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#define DGL_IMAGE_KNOB_HPP_INCLUDED</span></div>

  108. <div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div>

  109. <div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &quot;Image.hpp&quot;</span></div>

  110. <div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &quot;Widget.hpp&quot;</span></div>

  111. <div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;</div>

  112. <div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;START_NAMESPACE_DGL</div>

  113. <div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div>

  114. <div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">// -----------------------------------------------------------------------</span></div>

  115. <div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div>

  116. <div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="classImageKnob.html">   27</a></span>&#160;<span class="keyword">class </span><a class="code" href="classImageKnob.html">ImageKnob</a> : <span class="keyword">public</span> <a class="code" href="classWidget.html">Widget</a></div>

  117. <div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;{</div>

  118. <div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="keyword">public</span>:</div>

  119. <div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    <span class="keyword">enum</span> Orientation {</div>

  120. <div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;        Horizontal,</div>

  121. <div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;        Vertical</div>

  122. <div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    };</div>

  123. <div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div>

  124. <div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classImageKnob_1_1Callback.html">   35</a></span>&#160;    <span class="keyword">class </span><a class="code" href="classImageKnob_1_1Callback.html">Callback</a></div>

  125. <div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    {</div>

  126. <div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    <span class="keyword">public</span>:</div>

  127. <div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;        <span class="keyword">virtual</span> ~<a class="code" href="classImageKnob_1_1Callback.html">Callback</a>() {}</div>

  128. <div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        <span class="keyword">virtual</span> <span class="keywordtype">void</span> imageKnobDragStarted(<a class="code" href="classImageKnob.html">ImageKnob</a>* imageKnob) = 0;</div>

  129. <div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;        <span class="keyword">virtual</span> <span class="keywordtype">void</span> imageKnobDragFinished(<a class="code" href="classImageKnob.html">ImageKnob</a>* imageKnob) = 0;</div>

  130. <div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;        <span class="keyword">virtual</span> <span class="keywordtype">void</span> imageKnobValueChanged(<a class="code" href="classImageKnob.html">ImageKnob</a>* imageKnob, <span class="keywordtype">float</span> value) = 0;</div>

  131. <div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    };</div>

  132. <div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>

  133. <div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    <span class="keyword">explicit</span> <a class="code" href="classImageKnob.html">ImageKnob</a>(<a class="code" href="classWindow.html">Window</a>&amp; parent, <span class="keyword">const</span> <a class="code" href="classImage.html">Image</a>&amp; image, Orientation orientation = Vertical) noexcept;</div>

  134. <div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    explicit <a class="code" href="classImageKnob.html">ImageKnob</a>(<a class="code" href="classWidget.html">Widget</a>* widget, const <a class="code" href="classImage.html">Image</a>&amp; image, Orientation orientation = Vertical) noexcept;</div>

  135. <div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    explicit <a class="code" href="classImageKnob.html">ImageKnob</a>(const <a class="code" href="classImageKnob.html">ImageKnob</a>&amp; imageKnob);</div>

  136. <div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    <a class="code" href="classImageKnob.html">ImageKnob</a>&amp; operator=(const <a class="code" href="classImageKnob.html">ImageKnob</a>&amp; imageKnob);</div>

  137. <div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    ~<a class="code" href="classImageKnob.html">ImageKnob</a>() override;</div>

  138. <div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div>

  139. <div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keywordtype">float</span> getValue() const noexcept;</div>

  140. <div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div>

  141. <div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    <span class="keywordtype">void</span> setDefault(<span class="keywordtype">float</span> def) noexcept;</div>

  142. <div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    <span class="keywordtype">void</span> setRange(<span class="keywordtype">float</span> min, <span class="keywordtype">float</span> max) noexcept;</div>

  143. <div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    <span class="keywordtype">void</span> setStep(<span class="keywordtype">float</span> step) noexcept;</div>

  144. <div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    <span class="keywordtype">void</span> setValue(<span class="keywordtype">float</span> value, <span class="keywordtype">bool</span> sendCallback = false) noexcept;</div>

  145. <div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <span class="keywordtype">void</span> setUsingLogScale(<span class="keywordtype">bool</span> yesNo) noexcept;</div>

  146. <div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;</div>

  147. <div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    <span class="keywordtype">void</span> setCallback(<a class="code" href="classImageKnob_1_1Callback.html">Callback</a>* callback) noexcept;</div>

  148. <div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    <span class="keywordtype">void</span> setOrientation(Orientation orientation) noexcept;</div>

  149. <div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <span class="keywordtype">void</span> setRotationAngle(<span class="keywordtype">int</span> angle);</div>

  150. <div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;</div>

  151. <div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <span class="keywordtype">void</span> setImageLayerCount(uint count) noexcept;</div>

  152. <div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div>

  153. <div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;protected:</div>

  154. <div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;     <span class="keywordtype">void</span> <a class="code" href="classImageKnob.html#a7123a12c906463700df8c6f24cd0a62f">onDisplay</a>() override;</div>

  155. <div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;     <span class="keywordtype">bool</span> <a class="code" href="classImageKnob.html#a473247914d3751d629dd8690f74af07b">onMouse</a>(const <a class="code" href="structWidget_1_1MouseEvent.html">MouseEvent</a>&amp;) override;</div>

  156. <div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;     <span class="keywordtype">bool</span> <a class="code" href="classImageKnob.html#a299a1721471747dc173633f21bd75b1f">onMotion</a>(const <a class="code" href="structWidget_1_1MotionEvent.html">MotionEvent</a>&amp;) override;</div>

  157. <div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;     <span class="keywordtype">bool</span> <a class="code" href="classImageKnob.html#a2cdc26028611554458a74b32740ac33b">onScroll</a>(const <a class="code" href="structWidget_1_1ScrollEvent.html">ScrollEvent</a>&amp;) override;</div>

  158. <div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;</div>

  159. <div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;private:</div>

  160. <div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <a class="code" href="classImage.html">Image</a> fImage;</div>

  161. <div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    <span class="keywordtype">float</span> fMinimum;</div>

  162. <div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keywordtype">float</span> fMaximum;</div>

  163. <div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    <span class="keywordtype">float</span> fStep;</div>

  164. <div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    <span class="keywordtype">float</span> fValue;</div>

  165. <div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <span class="keywordtype">float</span> fValueDef;</div>

  166. <div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <span class="keywordtype">float</span> fValueTmp;</div>

  167. <div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="keywordtype">bool</span>  fUsingDefault;</div>

  168. <div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="keywordtype">bool</span>  fUsingLog;</div>

  169. <div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    Orientation fOrientation;</div>

  170. <div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div>

  171. <div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    <span class="keywordtype">int</span>  fRotationAngle;</div>

  172. <div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="keywordtype">bool</span> fDragging;</div>

  173. <div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <span class="keywordtype">int</span>  fLastX;</div>

  174. <div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    <span class="keywordtype">int</span>  fLastY;</div>

  175. <div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;</div>

  176. <div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <a class="code" href="classImageKnob_1_1Callback.html">Callback</a>* fCallback;</div>

  177. <div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div>

  178. <div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="keywordtype">bool</span> fIsImgVertical;</div>

  179. <div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    uint fImgLayerWidth;</div>

  180. <div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    uint fImgLayerHeight;</div>

  181. <div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    uint fImgLayerCount;</div>

  182. <div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <span class="keywordtype">bool</span> fIsReady;</div>

  183. <div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    GLuint fTextureId;</div>

  184. <div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div>

  185. <div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="keywordtype">float</span> _logscale(<span class="keywordtype">float</span> value) const;</div>

  186. <div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <span class="keywordtype">float</span> _invlogscale(<span class="keywordtype">float</span> value) const;</div>

  187. <div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div>

  188. <div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    DISTRHO_LEAK_DETECTOR(<a class="code" href="classImageKnob.html">ImageKnob</a>)</div>

  189. <div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;};</div>

  190. <div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div>

  191. <div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment">// -----------------------------------------------------------------------</span></div>

  192. <div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div>

  193. <div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;END_NAMESPACE_DGL</div>

  194. <div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;</div>

  195. <div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="preprocessor">#endif // DGL_IMAGE_KNOB_HPP_INCLUDED</span></div>

  196. <div class="ttc" id="classImageKnob_html_a7123a12c906463700df8c6f24cd0a62f"><div class="ttname"><a href="classImageKnob.html#a7123a12c906463700df8c6f24cd0a62f">ImageKnob::onDisplay</a></div><div class="ttdeci">void onDisplay() override</div></div>

  197. <div class="ttc" id="classWindow_html"><div class="ttname"><a href="classWindow.html">Window</a></div><div class="ttdef"><b>Definition:</b> Window.hpp:30</div></div>

  198. <div class="ttc" id="classImageKnob_html_a473247914d3751d629dd8690f74af07b"><div class="ttname"><a href="classImageKnob.html#a473247914d3751d629dd8690f74af07b">ImageKnob::onMouse</a></div><div class="ttdeci">bool onMouse(const MouseEvent &amp;) override</div></div>

  199. <div class="ttc" id="classImageKnob_1_1Callback_html"><div class="ttname"><a href="classImageKnob_1_1Callback.html">ImageKnob::Callback</a></div><div class="ttdef"><b>Definition:</b> ImageKnob.hpp:35</div></div>

  200. <div class="ttc" id="structWidget_1_1MotionEvent_html"><div class="ttname"><a href="structWidget_1_1MotionEvent.html">Widget::MotionEvent</a></div><div class="ttdef"><b>Definition:</b> Widget.hpp:128</div></div>

  201. <div class="ttc" id="classImageKnob_html_a299a1721471747dc173633f21bd75b1f"><div class="ttname"><a href="classImageKnob.html#a299a1721471747dc173633f21bd75b1f">ImageKnob::onMotion</a></div><div class="ttdeci">bool onMotion(const MotionEvent &amp;) override</div></div>

  202. <div class="ttc" id="classWidget_html"><div class="ttname"><a href="classWidget.html">Widget</a></div><div class="ttdef"><b>Definition:</b> Widget.hpp:51</div></div>

  203. <div class="ttc" id="structWidget_1_1MouseEvent_html"><div class="ttname"><a href="structWidget_1_1MouseEvent.html">Widget::MouseEvent</a></div><div class="ttdef"><b>Definition:</b> Widget.hpp:110</div></div>

  204. <div class="ttc" id="classImage_html"><div class="ttname"><a href="classImage.html">Image</a></div><div class="ttdef"><b>Definition:</b> Image.hpp:38</div></div>

  205. <div class="ttc" id="classImageKnob_html_a2cdc26028611554458a74b32740ac33b"><div class="ttname"><a href="classImageKnob.html#a2cdc26028611554458a74b32740ac33b">ImageKnob::onScroll</a></div><div class="ttdeci">bool onScroll(const ScrollEvent &amp;) override</div></div>

  206. <div class="ttc" id="classImageKnob_html"><div class="ttname"><a href="classImageKnob.html">ImageKnob</a></div><div class="ttdef"><b>Definition:</b> ImageKnob.hpp:27</div></div>

  207. <div class="ttc" id="structWidget_1_1ScrollEvent_html"><div class="ttname"><a href="structWidget_1_1ScrollEvent.html">Widget::ScrollEvent</a></div><div class="ttdef"><b>Definition:</b> Widget.hpp:143</div></div>

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