view native/PhantomOmni/CollectionsManager.h @ 3:9e67171477bc

PHANTOM Omni Heptic device release

#pragma once

#include <jni.h>
#include "stdafx.h"
#include "utils.h"


/* this class uses the java haptic object lists to provide nodes *
 * and edges to draw to the graphic and haptic managers          */
class CollectionsManager
{
public:
	struct NodeData {
		jdouble x;
		jdouble y;
		jint hapticId;
		jint diagramId;

		NodeData(){}
	private :
		NodeData(const NodeData& n){/* avoid mistakenly copy construction calls */}
	};

	struct EdgeData{
		jdouble *x;
		jdouble *y;
		bool **adjMatrix;
		jint hapticId;
		jint diagramId;
		jint stipplePattern;
		jsize nodeStart;
		jdouble attractPoint[2];
		void setSize(unsigned int s){
			size = s;
			if(s > previousSize){
				/* delete the old memory */
				delete [] x;
				delete [] y;
				for(unsigned int i=0; i<previousSize; i++)
					delete[] adjMatrix[i];
				delete [] adjMatrix;
				/* allocates a bigger one */
				try{
					x = new jdouble[size];
					y = new jdouble[size];
					adjMatrix = new  bool* [size];
					for(unsigned int i=0; i<size; i++){
						adjMatrix[i] = new bool[size];
						for(unsigned int j=0; j<size; j++)
							adjMatrix[i][j] = false;
					}
				}catch(std::bad_alloc){
					stopExecution("Could not allocate memory for the program.\nAborting...");
				}
				previousSize = size;
			}
		}

		unsigned int getSize() const {
			return size;
		}

		EdgeData(unsigned int s) : size(s), previousSize(s){
			x = new jdouble[size];
			y = new jdouble[size];
			adjMatrix = new  bool* [size];
			for(unsigned int i=0; i<size; i++){
				adjMatrix[i] = new bool[size];
				for(unsigned int j=0; j<size; j++)
					adjMatrix[i][j] = false;
			}
		}
		~EdgeData(){
			delete [] x;
			delete [] y;
			for(unsigned int i=0; i<size; i++)
				delete[] adjMatrix[i];
			delete [] adjMatrix;
		}
	private :
		unsigned int size;
		unsigned int previousSize;
		EdgeData(const EdgeData& e){ /* avoid mistakenly copy construction */}

	};
private:
	JNIEnv *env;
	jobject *haptics;

	jclass hapticClass;
	jclass hapticNodeClass;
	jclass hapticEdgeClass;
	jclass listClass;
	jclass bitsetClass;
	jobject nodeList;
	jobject edgeList;
	jmethodID getMethodId;
	jmethodID sizeMethodId;
	jmethodID getBitMethodId;
	jmethodID getNodeFromIDMethodId;
	jmethodID getEdgeFromIDMethodId;
	jfieldID xFieldId;
	jfieldID yFieldId;
	jfieldID nodeHapticIdFieldId;
	jfieldID edgeHapticIdFieldId;
	jfieldID nodeDiagramIdFieldId;
	jfieldID edgeDiagramIdFieldId;
	jfieldID nodeListfieldId;
	jfieldID stipplePatternfieldId;
	jfieldID edgeListfieldId;
	jfieldID edgeSizefieldId;
	jfieldID edgeXsFieldId;
	jfieldID edgeYsFieldId;
	jfieldID edgeAdjMatrixFieldId;
	jfieldID attractPointXFieldId;
	jfieldID attractPointYFieldId;
	jfieldID edgeNodeStartFieldId;

	int screenHeight;
	NodeData nd;
	EdgeData ed;
	
	void fillupNodeData(struct NodeData & nd, jobject & currentNode);
	void fillupEdgeData(struct EdgeData & ed, jobject & currentEdge);
public:
	CollectionsManager(JNIEnv *environment, jobject *obj) : env(environment), haptics(obj), ed(2){}
	virtual ~CollectionsManager(void){}
	const jint getNodesNum();
	const jint getEdgesNum();
	struct NodeData & getNodeData(const int i);
	struct EdgeData & getEdgeData(const int i);
	struct NodeData & getNodeDataFromID(const jint id) throw(int);
	struct EdgeData & getEdgeDataFromID(const jint id) throw(int);
	bool isEdge(const jint id) const throw(int);
	bool isNode(const jint id) const throw(int);
	void init(void);
	int getScreenHeight() const { return screenHeight;}
	void setScreenHeight(const int sh) { screenHeight = sh; }
	
};