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216 lines
6.4 KiB
216 lines
6.4 KiB
15 years ago
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/***************************************************************************
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* Copyright (C) 2003-2005 by David Saxton *
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* david@bluehaze.org *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#ifndef CANVASITEMGROUP_H
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#define CANVASITEMGROUP_H
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#include "itemgroup.h"
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class CNItem;
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class Item;
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class ICNDocument;
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class Component;
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class Connector;
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class FlowPart;
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class Node;
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class ECNode;
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class FPNode;
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class ICNDocument;
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class QCanvasItem;
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class QCanvasItemList;
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typedef QValueList<QGuardedPtr<Item> > ItemList;
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typedef QValueList<QGuardedPtr<Node> > NodeList;
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typedef QValueList<QGuardedPtr<Connector> > ConnectorList;
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/**
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@author David Saxton
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*/
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class CNItemGroup : public ItemGroup
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{
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Q_OBJECT
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public:
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CNItemGroup( ICNDocument *icnDocument, const char *name = 0 );
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~CNItemGroup();
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/**
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* Adds a CNItem to the group, if it is not already in it, or other items at
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* a lower levels are already in the group. If there are items are a high level,
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* those items are removed first. Returns false on failure to add.
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*/
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bool addItem( Item *item );
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/**
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* Adds a Node to the group, if it is not already in it. Note: This node
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* will *NOT* be added if it is a child node, and the function will return false.
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* If the node is not already present, and is added, then this will return true.
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*/
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bool addNode( Node *node );
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/**
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* Adds a Connector to the group, if it is not already in it (if it is, returns false)
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*/
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bool addConnector( Connector *con );
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/**
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* If the item is a a CNItem, Node or Connector, returns the status
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* for that particular add function, else returns false
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*/
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virtual bool addQCanvasItem( QCanvasItem *qcanvasItem );
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/**
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* Sets the contained items to those in this list
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*/
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virtual void setItems( QCanvasItemList list );
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/**
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* Removes the CNItem from the group
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*/
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void removeItem( Item *item );
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/**
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* Removes the Node from the group
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*/
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void removeNode( Node *node );
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/**
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* Removes the Connector from the group
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*/
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void removeConnector( Connector *con );
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/**
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* If the item is a a CNItem, Node or Connector, then attempts to remove it
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*/
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virtual void removeQCanvasItem( QCanvasItem *qcanvasItem );
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/**
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* Returns true if the QCanvasItem passed is contained in the group
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*/
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virtual bool contains( QCanvasItem *qcanvasItem ) const;
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/**
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* Returns the number of Nodes in the CanvasGroup
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*/
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uint nodeCount() const { return m_nodeCount; }
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/**
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* Returns the number of Connectors in the CanvasGroup
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*/
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uint connectorCount() const { return m_connectorCount; }
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/**
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* Returns the total number of items in the group
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* (CNItems, Nodes, Connectors)
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*/
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uint count() const { return itemCount()+m_nodeCount+m_connectorCount; }
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/**
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* Sets the selected state of all items in the group
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*/
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virtual void setSelected( bool sel );
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/**
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* Sets the orientation (degrees component) of all items in the group
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*/
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void setOrientationAngle( int angleDegrees );
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/**
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* Sets the orientation (flipped component) of all items in the group
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*/
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void setOrientationFlipped( bool flipped );
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/**
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* Sets the orientation of all flowparts in the group
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*/
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void setFlowPartOrientation( unsigned orientation );
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/**
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* Sets the orientation (degrees and flipped) of all components in the group
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*/
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void setComponentOrientation( int angleDegrees, bool flipped );
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/**
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* Merges all items in the given group with this group
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*/
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virtual void mergeGroup( ItemGroup *group );
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/**
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* Removes all items from this group (doesn't delete them)
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* @param unselect whether to unselect the items or not. This will be done after removal from group
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*/
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virtual void removeAllItems();
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/**
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* Attempts to delete everything in the group.
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* Note: You *must* call ICNDocument::flushDeleteList() after calling this function,
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* as this function only tells the items to remove themselves
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*/
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virtual void deleteAllItems();
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/**
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* Returns a list of all the Nodes in the group.
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* @param excludeParented if false, then nodes that are fully contained
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* within item children will also be returned.
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*/
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NodeList nodes( bool excludeParented = true ) const;
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/**
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* Returns a list of all the Connectors in the group.
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* @param excludeParented if false, then connectors that are fully contained
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* within item children will also be returned.
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*/
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ConnectorList connectors( bool excludeParented = true ) const;
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/**
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* Returns a list of the ids of all the CNItems in the group.
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*/
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QStringList itemIDs();
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/**
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* Returns true if at least some of the CNItems in this group can be
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* rotated. Returns false if no items present.
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*/
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bool canRotate() const;
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/**
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* Returns true if at least some of the CNItems in this group can be
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* flipped. Returns false if no items present.
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*/
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bool canFlip() const;
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public slots:
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/**
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* Sets the orientation of all selected items to 0 degrees.
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*/
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void slotSetOrientation0() { setOrientationAngle(0); }
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/**
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* Sets the orientation of all selected items to 90 degrees.
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*/
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void slotSetOrientation90() { setOrientationAngle(90); }
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/**
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* Sets the orientation of all selected items to 180 degrees.
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*/
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void slotSetOrientation180() { setOrientationAngle(180); }
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/**
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* Sets the orientation of all selected items to 270 (actually -90) degrees.
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*/
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void slotSetOrientation270() { setOrientationAngle(-90); }
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/**
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* Rotates all CNItems in the group clockwise
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*/
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void slotRotateCW();
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/**
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* Rotates all CNItems in the group counter-clockwise
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*/
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void slotRotateCCW();
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/**
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* Flips all CNItems in the group
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*/
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void slotFlip();
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signals:
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void connectorAdded( Connector *con );
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void connectorRemoved( Connector *con );
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void nodeAdded( Node *node );
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void nodeRemoved( Node *node );
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protected:
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void updateInfo();
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void getActiveItem();
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void setActiveItem( Item *item );
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private:
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ICNDocument *p_icnDocument;
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ConnectorList m_connectorList;
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NodeList m_nodeList;
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uint m_connectorCount;
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uint m_nodeCount;
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int m_currentLevel; // We can only accept CNItems of one level
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};
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#endif
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