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Diffstat (limited to 'src/cnitem.h')
| -rw-r--r-- | src/cnitem.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/src/cnitem.h b/src/cnitem.h new file mode 100644 index 0000000..7a5f55a --- /dev/null +++ b/src/cnitem.h @@ -0,0 +1,191 @@ +/*************************************************************************** + * Copyright (C) 2003-2005 by David Saxton * + * david@bluehaze.org * + * * + * 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. * + ***************************************************************************/ + +#ifndef CNITEM_H +#define CNITEM_H + +#include "item.h" +#include "ciwidgetmgr.h" + + +class Button; +class CNItem; +class ICNDocument; +class Connector; +class DoubleSpinBox; +class LibraryItem; +class Node; +class QSlider; +class QString; +class QToolButton; +class QWMatrix; +class Slider; +class Text; + + +class NodeInfo +{ +public: + NodeInfo(); + + QString id; // External id (ICNDocument scope) + Node *node; //Pointer to the node + double x; // X position relative to item + double y; // Y position relative to item + int orientation; // Orientation relative to item +}; + +typedef QMap<QString, QString> StringMap; +typedef QMap<QString, NodeInfo> NodeMap; // Internal id, node info +typedef QValueList<QGuardedPtr<Connector> > ConnectorList; +typedef QMap<QString, QGuardedPtr<Text> > TextMap; + +/** +Essentially, all items that live on ICNDocument should inherit from this class. +This class provides much functionality (moving items, creation of associated nodes, +saving and editing of associated data, cutting / copying, etc) +@short Base class for all components/flowparts/etc +@author Daniel Clarke +@author David Saxton +*/ +class CNItem : public Item, public CIWidgetMgr +{ +Q_OBJECT +public: + CNItem( ICNDocument *_icnView, bool newItem, const QString &id ); + virtual ~CNItem(); + + /** + * Returns the run-time identifier for the CNItem - ItemDocument::RTTI::CNItem + */ + int rtti() const; + /** + * Creates a node which is attached to the item. The node will be moved + * about with the item, and destroyed along with the item. The position + * coordinates of the node are relative to the upper left corner of the item. + * @param type See Node::node_type + */ + Node* createNode( double _x, double _y, int orientation, const QString &name, uint type ); + /** + * Removes a child node. You should use this function if you want to remove + * any nodes during the lifetime of the CNItem. + */ + bool removeNode( const QString &name ); + /** + * Sets the mouse click point when moving this item + */ + void setInitialPos( const QPoint &pos ); + /** + * Snaps the component to the grid. + */ + void snap( int newx = -1, int newy = -1 ); + /** + * Returns the closest node that is associated with the CNItem + */ + Node *getClosestNode( const QPoint &pos ); + /** + * Returns a list of connectors associated with the CNItem + */ + ConnectorList connectorList(); + virtual bool preResize( QRect sizeRect ); + virtual bool mousePressEvent( const EventInfo &eventInfo ); + virtual bool mouseReleaseEvent( const EventInfo &eventInfo ); + virtual bool mouseDoubleClickEvent ( const EventInfo &eventInfo ); + virtual bool mouseMoveEvent( const EventInfo &eventInfo ); + virtual bool wheelEvent( const EventInfo &eventInfo ); + virtual void enterEvent(); + virtual void leaveEvent(); + /** + * ICNDocument needs to know what 'cells' a CNItem is present in, + * so that connection mapping can be done to avoid CNItems. + * This function will add the hit penalty to the cells pointed to + * by ICNDocument::cells() + */ + virtual void updateConnectorPoints( bool add ); + /** + * Converts the id used to internally identify a node to the global + * ICNDocument node id. eg "vss" might return "node__13". + */ + QString nodeId( const QString &internalNodeId ); + /** + * Returns a pointer to the node with the given internal (child) id + */ + Node *childNode( const QString &childId ); + /** + * Returns the node map used: + * QMap<QString, NodeInfo> NodeMap + * It's probably best to cache this data + */ + NodeMap nodeMap() const { return m_nodeMap; } + /** + * Returns the TextMap used for canvas text + */ + TextMap textMap() const { return m_textMap; } + virtual void setVisible( bool yes ); + virtual void updateZ( int baseZ ); + + virtual ItemData itemData() const; + virtual void restoreFromItemData( const ItemData &itemData ); + virtual void updateNodeLevels(); + +public slots: + /** + * Moves item - use this instead of moveBy() so that associated Nodes also get moved + */ + virtual void moveBy( double dx, double dy ); + /** + * Remove the item and associated nodes. It appends the item to the + * ICNDocument's delete list, so you must call ICNDocument::flushDeleteList() + * after calling this (and possible ICNDocument::clearDeleteList() befor + * calling it) The virtual function void handleRemove() is called to allow + * any child classes to clear up any neccessary data (which doesn't do + * anything by default), before CNItem does the rest + */ + virtual void removeItem(); + /** + * This item has been resized, so update the nodes relative positions + */ + virtual void updateAttachedPositioning(); + +protected: + virtual void reparented( Item *oldParent, Item *newParent ); + virtual void drawShape( QPainter &p ); + virtual void postResize(); + /** + * CNItem handles drawing of text associated with the CNItem. + * @param id is a unique identifier that can be used to change the text displayed. + * @param pos is the position that the text occupies relative to the top left corner of the CNItem. + * @param display is the actual text to be displayed. + * @param internal is used to determine the z-level of the text - whether it should be below or above the item + * @param flags Text alignment flags - Qt::AlignmentFlags and Qt::TextFlags OR'd together. + */ + Text* addDisplayText( const QString &id, const QRect & pos, const QString &display, bool internal = true, int flags = Qt::AlignHCenter | Qt::AlignVCenter ); + void setDisplayText( const QString &id, const QString &display ); + /** + * Remove the display text with the given id + */ + void removeDisplayText( const QString &id ); + /** + * Sets the right colour if selected, transforms the matrix of the painter + */ + virtual void initPainter( QPainter &p ); + + QPoint m_offset; + QGuardedPtr<ICNDocument> p_icnDocument; + TextMap m_textMap; + NodeMap m_nodeMap; + QColor m_selectedCol; + QColor m_brushCol; + bool b_pointsAdded; +}; +typedef QValueList<CNItem*> CNItemList; + +#endif + |