/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1999 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the NPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef _MORKROWCELLCURSOR_ #define _MORKROWCELLCURSOR_ 1 #ifndef _MORK_ #include "mork.h" #endif #ifndef _MORKCURSOR_ #include "morkCursor.h" #endif //3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789 class orkinRowCellCursor; #define morkDerived_kRowCellCursor /*i*/ 0x6343 /* ascii 'cC' */ class morkRowCellCursor : public morkCursor, public nsIMdbRowCellCursor { // row iterator // public: // slots inherited from morkObject (meant to inform only) // nsIMdbHeap* mNode_Heap; // mork_able mNode_Mutable; // can this node be modified? // mork_load mNode_Load; // is this node clean or dirty? // mork_base mNode_Base; // must equal morkBase_kNode // mork_derived mNode_Derived; // depends on specific node subclass // mork_access mNode_Access; // kOpen, kClosing, kShut, or kDead // mork_usage mNode_Usage; // kHeap, kStack, kMember, kGlobal, kNone // mork_uses mNode_Uses; // refcount for strong refs // mork_refs mNode_Refs; // refcount for strong refs + weak refs // morkFactory* mObject_Factory; // weak ref to suite factory // mork_seed mCursor_Seed; // mork_pos mCursor_Pos; // mork_bool mCursor_DoFailOnSeedOutOfSync; // mork_u1 mCursor_Pad[ 3 ]; // explicitly pad to u4 alignment public: // state is public because the entire Mork system is private NS_DECL_ISUPPORTS_INHERITED morkRowObject* mRowCellCursor_RowObject; // strong ref to row mork_column mRowCellCursor_Col; // col of cell last at mCursor_Pos // { ===== begin morkNode interface ===== public: // morkNode virtual methods virtual void CloseMorkNode(morkEnv* ev); // CloseRowCellCursor() virtual ~morkRowCellCursor(); // assert that close executed earlier public: // morkRowCellCursor construction & destruction morkRowCellCursor(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap, morkRowObject* ioRowObject); void CloseRowCellCursor(morkEnv* ev); // called by CloseMorkNode(); // { ----- begin attribute methods ----- NS_IMETHOD SetRow(nsIMdbEnv* ev, nsIMdbRow* ioRow); // sets pos to -1 NS_IMETHOD GetRow(nsIMdbEnv* ev, nsIMdbRow** acqRow); // } ----- end attribute methods ----- // { ----- begin cell creation methods ----- NS_IMETHOD MakeCell( // get cell at current pos in the row nsIMdbEnv* ev, // context mdb_column* outColumn, // column for this particular cell mdb_pos* outPos, // position of cell in row sequence nsIMdbCell** acqCell); // the cell at inPos // } ----- end cell creation methods ----- // { ----- begin cell seeking methods ----- NS_IMETHOD SeekCell( // same as SetRow() followed by MakeCell() nsIMdbEnv* ev, // context mdb_pos inPos, // position of cell in row sequence mdb_column* outColumn, // column for this particular cell nsIMdbCell** acqCell); // the cell at inPos // } ----- end cell seeking methods ----- // { ----- begin cell iteration methods ----- NS_IMETHOD NextCell( // get next cell in the row nsIMdbEnv* ev, // context nsIMdbCell** acqCell, // changes to the next cell in the iteration mdb_column* outColumn, // column for this particular cell mdb_pos* outPos); // position of cell in row sequence NS_IMETHOD PickNextCell( // get next cell in row within filter set nsIMdbEnv* ev, // context nsIMdbCell* ioCell, // changes to the next cell in the iteration const mdbColumnSet* inFilterSet, // col set of actual caller interest mdb_column* outColumn, // column for this particular cell mdb_pos* outPos); // position of cell in row sequence // Note that inFilterSet should not have too many (many more than 10?) // cols, since this might imply a potential excessive consumption of time // over many cursor calls when looking for column and filter intersection. // } ----- end cell iteration methods ----- private: // copying is not allowed morkRowCellCursor(const morkRowCellCursor& other); morkRowCellCursor& operator=(const morkRowCellCursor& other); public: // dynamic type identification mork_bool IsRowCellCursor() const { return IsNode() && mNode_Derived == morkDerived_kRowCellCursor; } // } ===== end morkNode methods ===== public: // errors static void NilRowObjectError(morkEnv* ev); static void NonRowCellCursorTypeError(morkEnv* ev); public: // typesafe refcounting inlines calling inherited morkNode methods static void SlotWeakRowCellCursor(morkRowCellCursor* me, morkEnv* ev, morkRowCellCursor** ioSlot) { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); } static void SlotStrongRowCellCursor(morkRowCellCursor* me, morkEnv* ev, morkRowCellCursor** ioSlot) { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); } }; //3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789 #endif /* _MORKROWCELLCURSOR_ */