## [6dd4ed]: src / interfaces / component / icomponentitem.h  Maximize  Restore  History

### 109 lines (87 with data), 3.2 kB

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 /* Copyright (C) 2009-2010 Julian B채ume This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef KTECHLAB_ICOMPONENTITEM_H #define KTECHLAB_ICOMPONENTITEM_H #include "../ktlinterfacesexport.h" #include #include "../idocumentscene.h" namespace KTechLab { class IDocumentModel; class Node; /** * \short Components that are shown on a scene * * This is a base-class for components which are rendered onto \ref IDocumentScene. * Each component needs an id which is unique within a document. Each component needs * to notify the model after it has been altered by user-interaction. */ class KTLINTERFACES_EXPORT IComponentItem : public QGraphicsSvgItem { public: IComponentItem(QGraphicsItem* parentItem = 0); ~IComponentItem(); /** * Set the document model for this component. This will be used to notify * the model about changes and to retrieve information about itself. */ void setDocumentModel(IDocumentModel* model); /** * Get the document model. */ IDocumentModel* documentModel() const; /** * Get the id of this component. */ QString id() const; /** * Check whether the given node belongs to this item. * * \param node - the Node to check * \returns true, if the node is child of this item */ bool hasNode(const Node* node) const; /** * Get a connector node belonging to this component item. * * \param id - the id of the node * \returns the node, 0 if no such node exists */ const Node* node(const QString& id) const; /** * Get a list of all nodes belonging to this item. * * \returns a list of nodes */ QList nodes() const; enum { Type = KTechLab::GraphicsItems::ComponentItemType }; virtual int type() const { return Type; }; public slots: /** * Inform the component, that some data has been changed, so it can * update it's data and take appropriate action. * * @param name - tell, which data has been changed * @param data - some data that is important for the object to know */ virtual void updateData( const QString &name, const QVariantMap &data ); signals: void dataUpdated( const QString &name, const QVariantMap &data ); protected: virtual QVariant itemChange(GraphicsItemChange change, const QVariant& value); IDocumentModel *m_document; QString m_id; }; } #endif // KTECHLAB_ICOMPONENTITEM_H 

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