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236 lines
7.6 KiB
236 lines
7.6 KiB
/***************************************************************************
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kxe_treeview.h - description
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-------------------
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begin : Thu Sep 20 2001
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copyright : (C) 2001, 2002, 2003 by The KXMLEditor Team
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email : OleBowle@gmx.de
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***************************************************************************/
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/***************************************************************************
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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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***************************************************************************/
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#ifndef KXE_TREEVIEW_H
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#define KXE_TREEVIEW_H
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#include <klistview.h>
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#include <tqstrlist.h>
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class KXESearchDialog;
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class TQDomDocument;
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class TQDomNode;
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class TQDomElement;
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class TQDomCharacterData;
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class TQDomProcessingInstruction;
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class TQMouseEvent;
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class TQTimer;
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class TQKeyEvent;
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class KXMLGUIClient;
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class KXE_TreeViewItem;
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/**
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* This is a listview, which displays the XML tree structure.
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* @short shows XML tree
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*/
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class KXE_TreeView : public KListView
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{
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Q_OBJECT
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public:
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KXE_TreeView( KXMLGUIClient * pGUIClient, TQWidget * pParent = 0, const char * pszName = 0 );
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/** Changes the behaviour of this view to readonly or readwrite. */
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void setReadWrite( bool fReadWrite );
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/** Selects the given item. */
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void selectItem( KXE_TreeViewItem * const pItem );
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/** Selects the item corresponding to the given node.
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* Returns true on success, false otherwise. */
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bool selectNode( const TQDomNode & node );
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/** Returns the a pointer to the selected items node or a null pointer (if no item is selected). */
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TQDomNode * getSelectedNode() const;
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/** Returns the a pointer to the special processing instruction or a null pointer for (if no item is exists). */
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TQDomNode * getSpecProcInstrNode(const TQString& target) const;
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/** Returns the selected items path or an empty string, if no item is selected. */
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TQString getSelectedPath() const;
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/** Returns true, if this tree view contains bookmarked tree items and false otherwise. */
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bool containsBookmarkedItems() const { return (m_nBookmarkedItems>0); }
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/** Drop or paste text into item */
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bool drop(TQListViewItem *, TQDropEvent *);
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/** toggles bookmark on the selected item */
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void bookmarksToggle();
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/** searches for the next bookmarked item */
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void bookmarksPrev();
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/** searches for the previous bookmarked item */
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void bookmarksNext();
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/** deselects currently selected item */
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void editDeselect();
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/** Selects the selected item's parent item. */
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void viewNodeUp();
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/** Expands the selected tree item's subtree to the given level (see @ref KXE_TreeViewItem::expandSubTree). */
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void viewExpNode( int nLevel );
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/** Collapses the selected tree item's subtree to the given level (see @ref KXE_TreeViewItem::collapseSubTree). */
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void viewColNode( int nLevel );
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/**
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* Creates new item(s) to the given node (and its child nodes)
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* and inserts it (or them) in the tree.
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*/
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void updateNodeCreated( const TQDomNode & node );
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/** Changes the item corresponding to the given node. */
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void updateNodeChanged( const TQDomNode & node );
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/** Removes the item corresponding to the given node. */
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void updateNodeDeleted( const TQDomNode & node );
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/** Moves the item corresponding to the given node. */
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void updateNodeMoved( const TQDomNode & node );
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/** Clears the whole tree. */
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void updateClear();
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/**
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* Handles inplace-renaming of items, because in our case
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* only items representing XML elements are to be renameable.
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* For the actual renaming of the items text, the base
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* class functionality is used and the signal
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* @ref sigItemRenamedInplace emitted.
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*/
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virtual void rename( TQListViewItem * pItem, int nColumn );
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/** Returns info, is root element is already created */
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bool hasRootNode();
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/** Returns last top-level child on the tree. If there are no chold in the tree, null is returned. */
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KXE_TreeViewItem* lastChild();
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public slots:
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// configuration slots
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//////////////////////////////////////////////////////////////
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/**
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* Changes this tree view's settings according to the current
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* configuration.
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*/
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void slotTreeViewSettingsChanged();
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signals:
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/** emitted, when no item is selected */
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void sigSelectionCleared(bool);
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/** emitted, when an XML element item is selected */
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void sigSelectionChanged( const TQDomElement & );
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/** emitted, when an XML Content item is selected */
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void sigSelectionChanged( const TQDomCharacterData & );
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/** emitted, when an XML proc.instr. item is selected */
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void sigSelectionChanged( const TQDomProcessingInstruction & );
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/**
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* Signals the change of bookmark status.
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* true - item(s) bookmarked
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* false - no item bookmarked
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*/
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void sigNewBookmarkStatus( bool fStatus );
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/** Emitted, when a context menu is requested */
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void sigContextMenuRequested( const TQString & szMenuName, const TQPoint & pos );
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/** Emitted when user presses a key. */
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void sigKeyPressed(TQKeyEvent* e);
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protected:
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/** if RMB shows the popupmenu corresponding to the selected item */
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void contentsMousePressEvent( TQMouseEvent * );
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/** Finds the corresponding treeview item to the given node. */
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KXE_TreeViewItem * findCorrespondingItem( const TQDomNode & node );
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/** Overrides KListView::contentsMouseReleaseEvent */
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void contentsMouseReleaseEvent(TQMouseEvent *);
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/** Overrides KListView::contentsMouseMoveEvent */
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void contentsMouseMoveEvent(TQMouseEvent *);
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/** Overrides TQScrollView::contentsDragEnterEvent */
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void contentsDragEnterEvent(TQDragEnterEvent *);
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/** Overrides TQScrollView::contentsDragMoveEvent */
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void contentsDragMoveEvent(TQDragMoveEvent *);
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/** Overrides TQScrollView::contentsDragLeaveEvent */
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void contentsDragLeaveEvent(TQDragLeaveEvent *);
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/** Overrides TQScrollView::contentsDropEvent */
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void contentsDropEvent(TQDropEvent *);
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virtual void keyPressEvent(TQKeyEvent *e);
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protected slots:
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/** Checks, which type of item was selected an emits the corresponding signal. */
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void slotSelectionChanged();
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/**
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* Ensures that the expanded item's grandchild items are created.
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* This is very important for the "create items on demand" mode. But even in
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* "create all items while loading" mode, this function has to be executed,
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* because KXMLEditor could have been in "create items on demand" mode during
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* the opening of the document.
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*
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* To be connected to the signal TQListView::expanded(TQListViewItem*).
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*/
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void slotItemExpanded( TQListViewItem * );
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private slots:
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/** Called, when m_autoOpenTimer timeout occured */
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void slotAutoOpenFolder();
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protected:
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/** the GUI client, needed for the popupmenus */
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KXMLGUIClient * m_pGUIClient;
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/** number of bookmarked items */
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unsigned int m_nBookmarkedItems;
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/** True if drag&drop operation started, otherwise is false */
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bool m_bDrag;
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/** Contain mouse position of drag operation */
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TQPoint m_dragPos;
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/** The item that was current before the drag-enter event happened */
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TQListViewItem *m_pCurrentBeforeDropItem;
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/** The item we are moving the mouse over (during a drag) */
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TQListViewItem *m_pDropItem;
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/** List of avalilable drop formats */
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TQStrList m_lstDropFormats;
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/** Timer for counting time to auto open fselected folder while drag */
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TQTimer *m_autoOpenTimer;
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};
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#endif
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