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<h1>/builddir/build/BUILD/flowcanvas-0.6.4/flowcanvas/Canvas.hpp</h1> </div>
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<a href="Canvas_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This file is part of FlowCanvas.</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2007-2009 David Robillard <http://drobilla.net></span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * FlowCanvas is free software; you can redistribute it and/or modify it under the</span>
<a name="l00005"></a>00005 <span class="comment"> * terms of the GNU General Public License as published by the Free Software</span>
<a name="l00006"></a>00006 <span class="comment"> * Foundation; either version 2 of the License, or (at your option) any later</span>
<a name="l00007"></a>00007 <span class="comment"> * version.</span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * FlowCanvas is distributed in the hope that it will be useful, but WITHOUT ANY</span>
<a name="l00010"></a>00010 <span class="comment"> * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS</span>
<a name="l00011"></a>00011 <span class="comment"> * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.</span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * You should have received a copy of the GNU General Public License along</span>
<a name="l00014"></a>00014 <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span>
<a name="l00015"></a>00015 <span class="comment"> * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA</span>
<a name="l00016"></a>00016 <span class="comment"> */</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="preprocessor">#ifndef FLOWCANVAS_CANVAS_HPP</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#define FLOWCANVAS_CANVAS_HPP</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <list></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <boost/enable_shared_from_this.hpp></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <boost/utility.hpp></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <libgnomecanvasmm.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="Connection_8hpp.html">flowcanvas/Connection.hpp</a>"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include "<a class="code" href="Module_8hpp.html">flowcanvas/Module.hpp</a>"</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include "<a class="code" href="Item_8hpp.html">flowcanvas/Item.hpp</a>"</span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029
<a name="l00034"></a><a class="code" href="namespaceFlowCanvas.html">00034</a> <span class="keyword">namespace </span>FlowCanvas {
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keyword">class </span><a class="code" href="classFlowCanvas_1_1Port.html" title="A port on a Module.">Port</a>;
<a name="l00037"></a>00037 <span class="keyword">class </span><a class="code" href="classFlowCanvas_1_1Module.html" title="A named block (possibly) containing input and output ports.">Module</a>;
<a name="l00038"></a>00038 <span class="keyword">class </span>GVNodes;
<a name="l00039"></a>00039
<a name="l00040"></a>00040
<a name="l00054"></a><a class="code" href="classFlowCanvas_1_1Canvas.html">00054</a> <span class="keyword">class </span><a class="code" href="classFlowCanvas_1_1Canvas.html" title="The &#39;master&#39; canvas widget which contains all other objects.">Canvas</a> : boost::noncopyable
<a name="l00055"></a>00055 , <span class="keyword">public</span> boost::enable_shared_from_this<Canvas>
<a name="l00056"></a>00056 , <span class="keyword">public</span> <span class="comment">/*CANVASBASE*/</span>Gnome::<a class="code" href="classFlowCanvas_1_1Canvas.html" title="The &#39;master&#39; canvas widget which contains all other objects.">Canvas</a>::CanvasAA
<a name="l00057"></a>00057 <span class="comment">// (CANVASBASE is a hook for a sed script in configure.ac)</span>
<a name="l00058"></a>00058 {
<a name="l00059"></a>00059 <span class="keyword">public</span>:
<a name="l00060"></a>00060 <a class="code" href="classFlowCanvas_1_1Canvas.html#adb6d329147bd6fa21715d9015b194878">Canvas</a>(<span class="keywordtype">double</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a1c9037faa9d9cdf17a517156b917fdb6">width</a>, <span class="keywordtype">double</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a5344c073d3efa7099dc6310344aba6d1">height</a>);
<a name="l00061"></a>00061 <span class="keyword">virtual</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#adb89ef7b5107696429f2058890e3fafc">~Canvas</a>();
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#aae22e84b6cb70a62e85945b1a9b0d8c1">destroy</a>();
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a9f6f42b50ee32f2f7386f030950c1d4b">add_item</a>(boost::shared_ptr<Item> i);
<a name="l00066"></a>00066 <span class="keywordtype">bool</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#addb7bc9d24f7a70c5032ff17064c1abd">remove_item</a>(boost::shared_ptr<Item> i);
<a name="l00067"></a>00067
<a name="l00068"></a>00068 boost::shared_ptr<Connection>
<a name="l00069"></a>00069 <a class="code" href="classFlowCanvas_1_1Canvas.html#a6f2f92b5e15557e90207a92ed5eed700">get_connection</a>(boost::shared_ptr<Connectable> tail,
<a name="l00070"></a>00070 boost::shared_ptr<Connectable> head) <span class="keyword">const</span>;
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="keywordtype">bool</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a8da18cae326c944e45abecf46d5c5463">add_connection</a>(boost::shared_ptr<Connectable> tail,
<a name="l00073"></a>00073 boost::shared_ptr<Connectable> head,
<a name="l00074"></a>00074 uint32_t color);
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="keywordtype">bool</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a8da18cae326c944e45abecf46d5c5463">add_connection</a>(boost::shared_ptr<Connection> connection);
<a name="l00077"></a>00077
<a name="l00078"></a>00078 boost::shared_ptr<Connection> <a class="code" href="classFlowCanvas_1_1Canvas.html#a899f3eb2b839759cb63a6bec8d230b51">remove_connection</a>(boost::shared_ptr<Connectable> tail,
<a name="l00079"></a>00079 boost::shared_ptr<Connectable> head);
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#ac2967d8ce851ec3c390821b31d6736dc">set_default_placement</a>(boost::shared_ptr<Module> m);
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#ad7580ac84131228bfec5770a476e853b">clear_selection</a>();
<a name="l00084"></a>00084 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#aa8a0963dd933af64ae6ab97d44bc55c8">select_item</a>(boost::shared_ptr<Item> item);
<a name="l00085"></a>00085 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a8365cb46d22f3a240415d5a3536ca984">unselect_ports</a>();
<a name="l00086"></a>00086 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#af4cd3c2aad497174e722acb31cb47964">unselect_item</a>(boost::shared_ptr<Item> item);
<a name="l00087"></a>00087 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a7b834d0b6acbdf07c1951b4e027057f0">unselect_connection</a>(<a class="code" href="classFlowCanvas_1_1Connection.html" title="A connection (line) between two canvas objects.">Connection</a>* c);
<a name="l00088"></a>00088
<a name="l00089"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a390de2dc3ac251bfae01bc2fe6ec9ba3">00089</a> <a class="code" href="namespaceFlowCanvas.html#ab4c39f25b89c40708f2478a262fa4726">ItemList</a>& <a class="code" href="classFlowCanvas_1_1Canvas.html#a390de2dc3ac251bfae01bc2fe6ec9ba3">items</a>() { <span class="keywordflow">return</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#ac1f899d52cb5081609fb4f6f40916223" title="All items on this canvas.">_items</a>; }
<a name="l00090"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a44fff730c57afe5ab93eee68d6d8c87b">00090</a> <a class="code" href="namespaceFlowCanvas.html#ab4c39f25b89c40708f2478a262fa4726">ItemList</a>& <a class="code" href="classFlowCanvas_1_1Canvas.html#a44fff730c57afe5ab93eee68d6d8c87b">selected_items</a>() { <span class="keywordflow">return</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#ad6b14aca9902a4a58d6da522864088be" title="All currently selected modules.">_selected_items</a>; }
<a name="l00091"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#aacfaeeecab89658eed7a8a787daaee70">00091</a> <a class="code" href="namespaceFlowCanvas.html#a95ded2c688bc4a98564a47ebb93a8c73">ConnectionList</a>& <a class="code" href="classFlowCanvas_1_1Canvas.html#aacfaeeecab89658eed7a8a787daaee70">connections</a>() { <span class="keywordflow">return</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a4879659380dc9a174f1fd0ae047d8b73" title="All connections on this canvas.">_connections</a>; }
<a name="l00092"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a539a767af30b45beb29f7fac6085d480">00092</a> <a class="code" href="namespaceFlowCanvas.html#a95ded2c688bc4a98564a47ebb93a8c73">ConnectionList</a>& <a class="code" href="classFlowCanvas_1_1Canvas.html#a539a767af30b45beb29f7fac6085d480">selected_connections</a>() { <span class="keywordflow">return</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a6f910a0f700b81bd63eb48319c5044ae" title="All currently selected connections.">_selected_connections</a>; }
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a6988d81b0db8d62ec67ebcfbaf687095">lock</a>(<span class="keywordtype">bool</span> l);
<a name="l00095"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a0d6cbfbec25d6d871aa552784533ac26">00095</a> <span class="keywordtype">bool</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a0d6cbfbec25d6d871aa552784533ac26">locked</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _locked; }
<a name="l00096"></a>00096
<a name="l00097"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#ad70fffade471e1c2d9923fd3ffac6fe7">00097</a> <span class="keywordtype">double</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#ad70fffade471e1c2d9923fd3ffac6fe7">get_zoom</a>() { <span class="keywordflow">return</span> _zoom; }
<a name="l00098"></a>00098 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a6c3dd94b67c37e688e6759d3bd805385">set_zoom</a>(<span class="keywordtype">double</span> pix_per_unit);
<a name="l00099"></a>00099 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#adc99561da3f9885d32ce1fc46dbd1c51">zoom_full</a>();
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a3a107569d9a2bbfb38df6e90bd178b04">render_to_dot</a>(<span class="keyword">const</span> std::string& filename);
<a name="l00102"></a>00102 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#aec42e5149e4f738c095ffda1eb09e4e4">arrange</a>(<span class="keywordtype">bool</span> use_length_hints=<span class="keyword">false</span>, <span class="keywordtype">bool</span> center=<span class="keyword">true</span>);
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#abf4e2624cc5aaa6e3555f2bc1fee3e79">move_contents_to</a>(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y);
<a name="l00105"></a>00105
<a name="l00106"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a1c9037faa9d9cdf17a517156b917fdb6">00106</a> <span class="keywordtype">double</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a1c9037faa9d9cdf17a517156b917fdb6">width</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _width; }
<a name="l00107"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a5344c073d3efa7099dc6310344aba6d1">00107</a> <span class="keywordtype">double</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a5344c073d3efa7099dc6310344aba6d1">height</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _height; }
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#afa99a58b37ec3060f0ee22ce18a1cc7f">resize</a>(<span class="keywordtype">double</span> width, <span class="keywordtype">double</span> height);
<a name="l00110"></a>00110 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a89550a9a43e5eebb7053ad56387d10e5">resize_all_items</a>();
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a1ab1ecd92047653a758c1b0322d4ccc4">scroll_to_center</a>();
<a name="l00113"></a>00113
<a name="l00114"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#aa23cb275264c537348d083a3d43f4ec1">00114</a> <span class="keyword">enum</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#aa23cb275264c537348d083a3d43f4ec1">FlowDirection</a> {
<a name="l00115"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#aa23cb275264c537348d083a3d43f4ec1ac2d244ef156d5dd7df1cb1eafc8a5ca8">00115</a> HORIZONTAL,
<a name="l00116"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#aa23cb275264c537348d083a3d43f4ec1a81696b43e13610f7f178760722d326d2">00116</a> <a class="code" href="classFlowCanvas_1_1Canvas.html#aa23cb275264c537348d083a3d43f4ec1a81696b43e13610f7f178760722d326d2">VERTICAL</a>
<a name="l00117"></a>00117 };
<a name="l00118"></a>00118
<a name="l00119"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a34a617bf11e26323aea49ce99422dd19">00119</a> <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a34a617bf11e26323aea49ce99422dd19">set_direction</a>(<a class="code" href="classFlowCanvas_1_1Canvas.html#aa23cb275264c537348d083a3d43f4ec1">FlowDirection</a> d) { _direction = d; }
<a name="l00120"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#afb2bf401066616f85384acfa4ebf51b4">00120</a> <a class="code" href="classFlowCanvas_1_1Canvas.html#aa23cb275264c537348d083a3d43f4ec1">FlowDirection</a> <a class="code" href="classFlowCanvas_1_1Canvas.html#afb2bf401066616f85384acfa4ebf51b4">direction</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _direction; }
<a name="l00121"></a>00121
<a name="l00124"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a716ce9815b2be3afb9314b7a14364340">00124</a> ArtVpathDash* <a class="code" href="classFlowCanvas_1_1Canvas.html#a716ce9815b2be3afb9314b7a14364340" title="Dash applied to selected items.">select_dash</a>() { <span class="keywordflow">return</span> _select_dash; }
<a name="l00125"></a>00125
<a name="l00127"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a2265d7b989dfe12691aecdc53d5f7938">00127</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a2265d7b989dfe12691aecdc53d5f7938" title="Make a connection.">connect</a>(boost::shared_ptr<Connectable> <span class="comment">/*tail*/</span>,
<a name="l00128"></a>00128 boost::shared_ptr<Connectable> <span class="comment">/*head*/</span>) {}
<a name="l00129"></a>00129
<a name="l00131"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a560d18c5919e4d2353a151335c82151a">00131</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a560d18c5919e4d2353a151335c82151a" title="Disconnect two ports.">disconnect</a>(boost::shared_ptr<Connectable> <span class="comment">/*tail*/</span>,
<a name="l00132"></a>00132 boost::shared_ptr<Connectable> <span class="comment">/*head*/</span>) {}
<a name="l00133"></a>00133
<a name="l00134"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a4462cf8ed219bd84d8e7043a2d91d677">00134</a> <span class="keyword">static</span> sigc::signal<void, Gnome::Canvas::Item*> <a class="code" href="classFlowCanvas_1_1Canvas.html#a4462cf8ed219bd84d8e7043a2d91d677">signal_item_entered</a>;
<a name="l00135"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a12ecf160f322298bda3f40b927c54944">00135</a> <span class="keyword">static</span> sigc::signal<void, Gnome::Canvas::Item*> <a class="code" href="classFlowCanvas_1_1Canvas.html#a12ecf160f322298bda3f40b927c54944">signal_item_left</a>;
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="keyword">protected</span>:
<a name="l00138"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#ac1f899d52cb5081609fb4f6f40916223">00138</a> <a class="code" href="namespaceFlowCanvas.html#ab4c39f25b89c40708f2478a262fa4726">ItemList</a> <a class="code" href="classFlowCanvas_1_1Canvas.html#ac1f899d52cb5081609fb4f6f40916223" title="All items on this canvas.">_items</a>;
<a name="l00139"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a4879659380dc9a174f1fd0ae047d8b73">00139</a> <a class="code" href="namespaceFlowCanvas.html#a95ded2c688bc4a98564a47ebb93a8c73">ConnectionList</a> <a class="code" href="classFlowCanvas_1_1Canvas.html#a4879659380dc9a174f1fd0ae047d8b73" title="All connections on this canvas.">_connections</a>;
<a name="l00140"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#ad6b14aca9902a4a58d6da522864088be">00140</a> std::list< boost::shared_ptr<Item> > <a class="code" href="classFlowCanvas_1_1Canvas.html#ad6b14aca9902a4a58d6da522864088be" title="All currently selected modules.">_selected_items</a>;
<a name="l00141"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a6f910a0f700b81bd63eb48319c5044ae">00141</a> std::list< boost::shared_ptr<Connection> > <a class="code" href="classFlowCanvas_1_1Canvas.html#a6f910a0f700b81bd63eb48319c5044ae" title="All currently selected connections.">_selected_connections</a>;
<a name="l00142"></a>00142
<a name="l00143"></a>00143 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#ac9a5c9d447ed6dca8e2af47370d9738c">canvas_event</a>(GdkEvent* event);
<a name="l00144"></a>00144 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#adf31ebec99e1979546ddd515615ef0a5">frame_event</a>(GdkEvent* ev);
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keyword">private</span>:
<a name="l00147"></a>00147
<a name="l00148"></a><a class="code" href="classFlowCanvas_1_1Canvas.html#a21f639900c480510650969df9c74d17d">00148</a> <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classFlowCanvas_1_1Module.html" title="A named block (possibly) containing input and output ports.">Module</a>;
<a name="l00149"></a>00149 <span class="keywordtype">bool</span> port_event(GdkEvent* event, boost::weak_ptr<Port> port);
<a name="l00150"></a>00150
<a name="l00151"></a>00151 GVNodes layout_dot(<span class="keywordtype">bool</span> use_length_hints, <span class="keyword">const</span> std::string& filename);
<a name="l00152"></a>00152
<a name="l00153"></a>00153 <span class="keywordtype">void</span> <a class="code" href="classFlowCanvas_1_1Canvas.html#a899f3eb2b839759cb63a6bec8d230b51">remove_connection</a>(boost::shared_ptr<Connection> c);
<a name="l00154"></a>00154 <span class="keywordtype">bool</span> are_connected(boost::shared_ptr<const Connectable> tail,
<a name="l00155"></a>00155 boost::shared_ptr<const Connectable> head);
<a name="l00156"></a>00156
<a name="l00157"></a>00157 <span class="keywordtype">void</span> select_port(boost::shared_ptr<Port> p, <span class="keywordtype">bool</span> unique = <span class="keyword">false</span>);
<a name="l00158"></a>00158 <span class="keywordtype">void</span> select_port_toggle(boost::shared_ptr<Port> p, <span class="keywordtype">int</span> mod_state);
<a name="l00159"></a>00159 <span class="keywordtype">void</span> unselect_port(boost::shared_ptr<Port> p);
<a name="l00160"></a>00160 <span class="keywordtype">void</span> selection_joined_with(boost::shared_ptr<Port> port);
<a name="l00161"></a>00161 <span class="keywordtype">void</span> join_selection();
<a name="l00162"></a>00162
<a name="l00163"></a>00163 boost::shared_ptr<Port> get_port_at(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y);
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <span class="keywordtype">bool</span> scroll_drag_handler(GdkEvent* event);
<a name="l00166"></a>00166 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> select_drag_handler(GdkEvent* event);
<a name="l00167"></a>00167 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> connection_drag_handler(GdkEvent* event);
<a name="l00168"></a>00168
<a name="l00169"></a>00169 <span class="keywordtype">void</span> ports_joined(boost::shared_ptr<Port> port1, boost::shared_ptr<Port> port2);
<a name="l00170"></a>00170 <span class="keywordtype">bool</span> animate_selected();
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="keywordtype">void</span> move_contents_to_internal(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keywordtype">double</span> min_x, <span class="keywordtype">double</span> min_y);
<a name="l00173"></a>00173
<a name="l00174"></a>00174 <span class="keywordtype">void</span> on_parent_changed(Gtk::Widget* old_parent);
<a name="l00175"></a>00175 sigc::connection _parent_event_connection;
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="keyword">typedef</span> std::list< boost::shared_ptr<Port> > SelectedPorts;
<a name="l00178"></a>00178 SelectedPorts _selected_ports;
<a name="l00179"></a>00179 boost::shared_ptr<Port> _connect_port;
<a name="l00180"></a>00180 boost::shared_ptr<Port> _last_selected_port;
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keywordtype">double</span> _zoom;
<a name="l00183"></a>00183 <span class="keywordtype">double</span> _width;
<a name="l00184"></a>00184 <span class="keywordtype">double</span> _height;
<a name="l00185"></a>00185
<a name="l00186"></a>00186 <span class="keyword">enum</span> DragState { NOT_DRAGGING, CONNECTION, SCROLL, SELECT };
<a name="l00187"></a>00187 DragState _drag_state;
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <span class="keywordtype">bool</span> _remove_objects; <span class="comment">// flag to avoid removing objects from destructors when unnecessary</span>
<a name="l00190"></a>00190 <span class="keywordtype">bool</span> _locked;
<a name="l00191"></a>00191
<a name="l00192"></a>00192 <a class="code" href="classFlowCanvas_1_1Canvas.html#aa23cb275264c537348d083a3d43f4ec1">FlowDirection</a> _direction;
<a name="l00193"></a>00193
<a name="l00194"></a>00194 Gnome::Canvas::Rect _base_rect;
<a name="l00195"></a>00195 Gnome::Canvas::Rect* _select_rect;
<a name="l00196"></a>00196 ArtVpathDash* _select_dash;
<a name="l00197"></a>00197 };
<a name="l00198"></a>00198
<a name="l00199"></a>00199
<a name="l00200"></a>00200 } <span class="comment">// namespace FlowCanvas</span>
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="preprocessor">#endif // FLOWCANVAS_CANVAS_HPP</span>
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