/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) Under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for Additional information regarding copyright ownership.
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The ASF licenses this file to You Under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed Under the License is distributed on an "AS Is" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations Under the License.
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==================================================================== */
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namespace HH.WMS.Utils.NPOI.HSSF.Model
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{
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using System;
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using HH.WMS.Utils.NPOI.DDF;
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using System.Collections;
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/**
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* Provides utilities to manage drawing Groups.
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*
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* @author Glen Stampoultzis (glens at apache.org)
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*/
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public class DrawingManager2
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{
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EscherDggRecord dgg;
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IList drawingGroups = new ArrayList();
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public DrawingManager2(EscherDggRecord dgg)
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{
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this.dgg = dgg;
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}
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/**
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* Clears the cached list of drawing Groups
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*/
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public void ClearDrawingGroups()
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{
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drawingGroups.Clear();
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}
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public EscherDgRecord CreateDgRecord()
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{
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EscherDgRecord dg = new EscherDgRecord();
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dg.RecordId = EscherDgRecord.RECORD_ID;
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short dgId = FindNewDrawingGroupId();
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dg.Options=(short)(dgId << 4);
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dg.NumShapes=0;
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dg.LastMSOSPID=(-1);
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drawingGroups.Add(dg);
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dgg.AddCluster(dgId, 0);
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dgg.DrawingsSaved=dgg.DrawingsSaved + 1;
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return dg;
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}
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/**
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* Allocates new shape id for the new drawing Group id.
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*
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* @return a new shape id.
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*/
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public int AllocateShapeId(short drawingGroupId)
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{
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EscherDgRecord dg = GetDrawingGroup(drawingGroupId);
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return AllocateShapeId(drawingGroupId, dg);
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}
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/**
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* Allocates new shape id for the new drawing group id.
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*
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* @return a new shape id.
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*/
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public int AllocateShapeId(short drawingGroupId, EscherDgRecord dg)
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{
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dgg.NumShapesSaved=(dgg.NumShapesSaved + 1);
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// Add to existing cluster if space available
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for (int i = 0; i < dgg.FileIdClusters.Length; i++)
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{
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EscherDggRecord.FileIdCluster c = dgg.FileIdClusters[i];
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if (c.DrawingGroupId == drawingGroupId && c.NumShapeIdsUsed != 1024)
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{
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int result = c.NumShapeIdsUsed + (1024 * (i + 1));
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c.IncrementShapeId();
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dg.NumShapes=(dg.NumShapes + 1);
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dg.LastMSOSPID=(result);
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if (result >= dgg.ShapeIdMax)
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dgg.ShapeIdMax=(result + 1);
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return result;
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}
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}
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// Create new cluster
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dgg.AddCluster(drawingGroupId, 0);
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dgg.FileIdClusters[dgg.FileIdClusters.Length - 1].IncrementShapeId();
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dg.NumShapes=(dg.NumShapes + 1);
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int result2 = (1024 * dgg.FileIdClusters.Length);
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dg.LastMSOSPID = (result2);
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if (result2 >= dgg.ShapeIdMax)
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dgg.ShapeIdMax = (result2 + 1);
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return result2;
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}
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/**
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* Finds the next available (1 based) drawing Group id
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*/
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public short FindNewDrawingGroupId()
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{
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short dgId = 1;
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while (DrawingGroupExists(dgId))
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dgId++;
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return dgId;
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}
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EscherDgRecord GetDrawingGroup(int drawingGroupId)
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{
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return (EscherDgRecord)drawingGroups[drawingGroupId - 1];
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}
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bool DrawingGroupExists(short dgId)
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{
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for (int i = 0; i < dgg.FileIdClusters.Length; i++)
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{
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if (dgg.FileIdClusters[i].DrawingGroupId == dgId)
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return true;
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}
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return false;
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}
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int FindFreeSPIDBlock()
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{
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int max = dgg.ShapeIdMax;
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int next = ((max / 1024) + 1) * 1024;
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return next;
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}
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public EscherDggRecord GetDgg()
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{
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return dgg;
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}
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}
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}
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