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<div id="projectname">The Gnome Chemistry Utils
 <span id="projectnumber">0.14.2</span>
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<li class="navelem"><a class="el" href="dir_6719ab1f1f7655efc2fa43f7eb574fd1.html">libs</a></li><li class="navelem"><a class="el" href="dir_975b6899fe54d58f2bb7bbaded20abef.html">gccv</a></li> </ul>
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<a href="item_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// -*- C++ -*-</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Gnome Chemistry Utils</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * gccv/item.h</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Copyright (C) 2008-2010 Jean Bréfort <jean.brefort@normalesup.org></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * This program is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * modify it under the terms of the GNU General Public License as</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * published by the Free Software Foundation; either version 3 of the</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * License, or (at your option) any later version.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * along with this program; if not, write to the Free Software</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * USA</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#ifndef GCCV_ITEM_H</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor"></span><span class="preprocessor">#define GCCV_ITEM_H</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <<a class="code" href="macros_8h.html">gcu/macros.h</a>></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <cairo.h></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="code" href="item_8h.html#a814d7519d9fa3c82b382d8adb066f6bc"> 48</a></span> <span class="preprocessor">#define GCCV_ITEM_PROP(type,member) \</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">public: \</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"> void Set##member (type val) { \</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor"> m_##member = val; \</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor"> Invalidate (); \</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"> type Get##member (void) const {return m_##member;} \</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">private: \</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor"> type m_##member;</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="code" href="item_8h.html#a5f299fb435ad51bc5c96798a5d5beed5"> 74</a></span> <span class="preprocessor">#define GCCV_ITEM_POS_PROP(type,member) \</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">public: \</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor"> void Set##member (type val) { \</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"> Invalidate (); \</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"> m_##member = val; \</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor"> BoundsChanged (); \</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor"> Invalidate (); \</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor"> } \</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"> type Get##member (void) const {return m_##member;} \</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">private: \</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"> type m_##member;</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">namespace </span>gccv {</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="keyword">class </span>Canvas;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">class </span>Group;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">class </span>ItemClient;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html"> 100</a></span> <span class="keyword">class </span><a class="code" href="classgccv_1_1Item.html" title="The base class for the canvas contents.">Item</a></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="classgccv_1_1Item.html#a00dc502013d3805e8e9582cbe04f8e86">Item</a> (<a class="code" href="classgccv_1_1Canvas.html" title="the Canvas class">Canvas</a> *canvas);</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="classgccv_1_1Item.html#a00dc502013d3805e8e9582cbe04f8e86">Item</a> (<a class="code" href="classgccv_1_1Group.html" title="Item with Item children.">Group</a> *parent, <a class="code" href="classgccv_1_1ItemClient.html" title="the base class for objects associated with a canvas item.">ItemClient</a> *client = NULL);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">virtual</span> <a class="code" href="classgccv_1_1Item.html#a3212226483cc34733ebb96f4d8c92aec">~Item</a> ();</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">void</span> <a class="code" href="classgccv_1_1Item.html#a0e99b3280b4094c2f08a0a3091a810ad">GetBounds</a> (<span class="keywordtype">double</span> &x0, <span class="keywordtype">double</span> &y0, <span class="keywordtype">double</span> &x1, <span class="keywordtype">double</span> &y1) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordtype">void</span> <a class="code" href="classgccv_1_1Item.html#a1d47eb21c54ace4a3a0daec7ef7cc7d9">Invalidate</a> () <span class="keyword">const</span>;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">void</span> <a class="code" href="classgccv_1_1Item.html#a4695bfd756d24f51a442d261665b58b4">SetVisible</a> (<span class="keywordtype">bool</span> visible);</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">// virtual methods</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classgccv_1_1Item.html#a910577616d9b99707382ab338ff469cb">Distance</a> (<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <a class="code" href="classgccv_1_1Item.html" title="The base class for the canvas contents.">Item</a> **item) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classgccv_1_1Item.html#a32b6613d909867aaf1722228bf50d12e">BuildPath</a> (cairo_t *cr) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classgccv_1_1Item.html#ae1786a80fb60d04cd3ae1565a4483ebf">Draw</a> (cairo_t *cr, <span class="keywordtype">bool</span> is_vector) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classgccv_1_1Item.html#ae1786a80fb60d04cd3ae1565a4483ebf">Draw</a> (cairo_t *cr, <span class="keywordtype">double</span> x0, <span class="keywordtype">double</span> y0, <span class="keywordtype">double</span> x1, <span class="keywordtype">double</span> y1, <span class="keywordtype">bool</span> is_vector) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classgccv_1_1Item.html#a7ac5c751e6c2d384c9f64b85bb1e3333">Move</a> (<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y);</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordtype">bool</span> <a class="code" href="classgccv_1_1Item.html#adaa5a67b57b1d3bc6641e7c78f205876">IsTopLevel</a> () <span class="keyword">const</span>;</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordtype">void</span> <a class="code" href="classgccv_1_1Item.html#a821084c10ce3b8b928ec5125e8bd7145">BoundsChanged</a> ();</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classgccv_1_1Item.html#a6b7dea0690c98e25b1f497123d1dc1ef">UpdateBounds</a> ();</div>
<div class="line"><a name="l00214"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html#a5adfad5f7619558d07c02b391ec2567b"> 214</a></span>  <a class="code" href="classgccv_1_1Canvas.html" title="the Canvas class">Canvas</a> <span class="keyword">const</span> *<a class="code" href="classgccv_1_1Item.html#a5adfad5f7619558d07c02b391ec2567b">GetCanvas</a> ()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_Canvas;}</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00220"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html#a1670f7c6eaa6704b73c163d6a8482b92"> 220</a></span>  <span class="keywordtype">double</span> <a class="code" href="classgccv_1_1Item.html#a1670f7c6eaa6704b73c163d6a8482b92">m_x0</a>;</div>
<div class="line"><a name="l00224"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html#a1a7d69cc97c2a37e514be121f14f1575"> 224</a></span>  <span class="keywordtype">double</span> <a class="code" href="classgccv_1_1Item.html#a1a7d69cc97c2a37e514be121f14f1575">m_y0</a>;</div>
<div class="line"><a name="l00228"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html#a26a2adc7bb1afd939400f952273f9612"> 228</a></span>  <span class="keywordtype">double</span> <a class="code" href="classgccv_1_1Item.html#a26a2adc7bb1afd939400f952273f9612">m_x1</a>;</div>
<div class="line"><a name="l00232"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html#a4e8d6af8f5ad9c92b9c7935b1d016cdc"> 232</a></span>  <span class="keywordtype">double</span> <a class="code" href="classgccv_1_1Item.html#a4e8d6af8f5ad9c92b9c7935b1d016cdc">m_y1</a>;</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="keyword">private</span>:</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="code" href="classgccv_1_1Canvas.html" title="the Canvas class">Canvas</a> *m_Canvas;</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordtype">bool</span> m_CachedBounds;</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordtype">bool</span> m_NeedsRedraw;</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
<div class="line"><a name="l00247"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html#a24d1a344e5a3a9f8c5643daad858d35e"> 247</a></span> <a class="code" href="macros_8h.html#a4afc3ecac8195714ecd17b3fcfae14b5">GCU_POINTER_PROP</a> (<a class="code" href="classgccv_1_1ItemClient.html" title="the base class for objects associated with a canvas item.">ItemClient</a>, <a class="code" href="classgccv_1_1Client.html" title="The document associated with the canvas.">Client</a>)</div>
<div class="line"><a name="l00251"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html#a53778f0146ad57cebcb31f331e2ad31c"> 251</a></span> <a class="code" href="macros_8h.html#a4669fa4e57baed635fa3e090eb659c32">GCU_RO_POINTER_PROP</a> (<a class="code" href="classgccv_1_1Group.html" title="Item with Item children.">Group</a>, Parent)</div>
<div class="line"><a name="l00255"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html#a442697870dedfce3a268f193f2d7e6a2"> 255</a></span> <a class="code" href="macros_8h.html#ae59df402113b58e8e28a7898e09a19a2">GCU_RO_PROP</a> (<span class="keywordtype">bool</span>, Visible)</div>
<div class="line"><a name="l00264"></a><span class="lineno"><a class="code" href="classgccv_1_1Item.html#aa1cb07da6bcaf0f6128510316ee21749"> 264</a></span> <a class="code" href="item_8h.html#a814d7519d9fa3c82b382d8adb066f6bc">GCCV_ITEM_PROP</a> (cairo_operator_t, Operator);</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> };</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> }</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="preprocessor">#endif // GCCV_ITEM_H</span></div>
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