[CC] Research on CC Plugin

The content of the application Plugin framework includes: Main program app, plugin plugin.

1, the implementation of an application frame key points are:

A plug-in standard interface in which a collection of plugins exists in the main program. The main program through the loop read each plug-in, the plug-in object through the polymorphic mechanism into the plug-in interface, implementation of plug-in loading.

The main program object or the main program interface needs to be passed as a parameter to the plug-in object to facilitate the plug-in object to invoke the main program's contents, such as the Master view, toolbars, tree views, status bars, etc.

2, open source point cloud processing software cloudcompare is also a plug-in framework, it is also necessary to include these content.

Plug-in interface: Ccplugininterface, each plug-in object has a new interface class defined on Ccplugininterface basis classes Ccstdplugininterface:public Ccplugininterface

Specific plug-ins are inherited from Ccstdplugininterface tired, such as, Class Qmyplugin:public qobject, public ccstdplugininterface

Main Program object: Class Ccmainappinterface,mainwindow main Form classes implement the Ccmainappinterface interface.

The Mainwindow::loadplugins () method is responsible for the plug-in invocation. (in Mainwindow.cpp file)

1 voidmainwindow::loadplugins ()2 {3Menuplugins->setenabled (false);4Menushadersandfilters->setenabled (false);5Toolbarplugintools->setvisible (false);6Toolbarglfilters->setvisible (false);7 8     //"Static" plugins9     foreach(Qobject *plugin, qpluginloader::staticinstances ())Ten Dispatchplugin (plugin); One  ACcconsole::P rint (QString ("Application path:")+Qcoreapplication::applicationdirpath ()); -  - #ifDefined (Q_OS_MAC) the     //plugins is in the bundle -QString Path =Qcoreapplication::applicationdirpath (); -Path.remove ("MacOS" ); -M_pluginspath = path +"Plugins/ccplugins"; + #else -     //plugins is in Bin/plugins +M_pluginspath = Qcoreapplication::applicationdirpath () +qstring ("/plugins"); A #endif at  -Ccconsole::P rint (QString ("Plugins lookup dir.:%1"). Arg (M_pluginspath)); -  - qstringlist filters; - #ifDefined (Q_os_win) -Filters <<"*.dll"; in #elifDefined (q_os_linux) -Filters <<"*.so"; to #elifDefined (Q_OS_MAC) +Filters <<"*.dylib"; - #endif the qdir Pluginsdir (m_pluginspath); * pluginsdir.setnamefilters (filters); $     foreach(QString filename, pluginsdir.entrylist (filters))Panax Notoginseng     { - Qpluginloader Loader (pluginsdir.absolutefilepath (filename)); theqobject* plugin =loader.instance (); +         if(plugin) A         { theCcconsole::P rint (QString ("Found New plugin: '%1 '"). ARG (filename)); +             if(Dispatchplugin (plugin)) -             { $M_pluginfilenames + =filename; $             } -             Else -             { the                 Deleteplugin; -Plugin =0;WuyiCcconsole::warning ("\tunsupported or invalid plugin type"); the             } -         } Wu         Else -         { About             Deleteplugin; $Plugin =0; -Ccconsole::warning (QString ("[Plugin]%1")/*. Arg (Pluginsdir.absolutefilepath (filename))*/. Arg (loader.errorstring ())); -         } -     } A  +     if(menuplugins) the     { -Menuplugins->setenabled (!m_stdplugins.empty ()); $     } the  the     if(toolbarplugintools->isenabled ()) the     { theActiondisplayplugintools->setenabled (true); -Actiondisplayplugintools->setchecked (true); in     } the     Else the     { About         //dgm:doesn ' t work:( the         //actiondisplayplugintools->setchecked (false); the     } the  +     if(toolbarglfilters->isenabled ()) -     { theActiondisplayglfilterstools->setenabled (true);BayiActiondisplayglfilterstools->setchecked (true); the     } the     Else -     { -         //dgm:doesn ' t work:( the         //actiondisplayglfilterstools->setchecked (false); the     } the}

The main program calls the plug-in when it loads the plugin. Setmainappinterface method, the main program parameters are passed in so that the plugin can get the contents of the main program.

1 // ! Sets application entrypoint2*/* called just after plugin creation by QCC3*  */4virtualvoid setmainappinterface (ccmainappinterface* app);

3. Get the point cloud layer in the main form

Code in Doaction:

1     Constcchobject::container& selectedentities = m_app->getselectedentities ();2size_t Selnum =selectedentities.size ();3     if(selnum!=1)4     {5M_app->disptoconsole ("Select only one cloud!", ccmainappinterface::err_console_message);6         return;7     }8 9cchobject* ent = selectedentities[0];Ten assert (ENT); One     if(!ent | |!ent->IsA (cc_types::P oint_cloud)) A     { -M_app->disptoconsole ("Select A real point cloud!", ccmainappinterface::err_console_message); -         return; the     } -  -ccpointcloud* pc = Static_cast<ccpointcloud*>(ENT); -  +     //Input Cloud -unsigned count = pc->size (); +     BOOLHasnorms = pc->hasnormals (); A CCVector3 bbmin, Bbmax; atPc->Getboundingbox (Bbmin,bbmax); -     Constccvector3d& Globalshift = pc->Getglobalshift (); -     DoubleGlobalscale = Pc->getglobalscale ();

[CC] Research on CC Plugin