java毕业设计-java基于BS结构下的OA流程可视化的研究与实现(源代码+论文).zip

package applettest; import java.awt.event.*; import java.util.Vector; /** * <p>Title:center画布的类 </p> * <p>Description: 画法</p> * <p>Copyright: Copyright (c) 2006</p> * <p>Company: </p> * @author not attributable * @version 1.0 */ import java.awt.*; import java.io.FileNotFoundException; import java.io.IOException; public class ArcCanvas extends Canvas implements MouseListener,MouseMotionListener{ //类ArcCanvas boolean filled = false; private Node node;//当前画的节点 //private Node SelectNode;//选中的节点 private Arc arc;//当前画的弧段 //private int Type;//根据工具栏选择花的类别,1代表矩形,2代表折线 private Graphics g; //节点向量 private Vector NodeObject; private int NodeOBLenght; private String CurrentNodeName = ""; //弧段向量 private Vector ArcObject; private int ArcOBLength; private boolean IfDrag;//拖拉矩形框大小 private boolean SelectNodeDrag = false;//选中后拖拉节点 private boolean SelectArcDrag = false;//选中后托放弧段 private boolean haveSelectedNode = false;//是否有选中的矩形 private boolean haveSelectedArc = false;//是否有选中的弧段 private boolean ArcIfinit = true;//弧段是否是第一次初始化 private boolean NodeIFinit = true;//节点是否第一次初始化 private int status;//当前状态 1为节点图,2为弧段图,3为空闲状态 private int nodeindex;//选中矩形的位置下标 private int arcindex;//选中弧段的位置下标 private int arcNodeindex = -1;//选中弧线上那一个节点 private int ox,oy;//弧线平移时使用，记录当鼠标按下第一次的位置坐标 private Vector endNode = new Vector(); private Vector arcList = new Vector(); public ArcCanvas() { //this.setBackground(new Color(123,145,226)); this.addMouseListener(this); this.addMouseMotionListener(this); this.NodeObject = new Vector(); this.ArcObject = new Vector(); try { jbInit(); } catch(Exception e) { e.printStackTrace(); } } public void SetNodeName(String name){ CurrentNodeName = name; } public void SetType() { } //画对象函数,从向量中取出对象,画出来 public void paint(Graphics g) { NodeOBLenght = this.NodeObject.size(); ArcOBLength = this.ArcObject.size(); System.out.println("Node Vector size: "+NodeOBLenght); System.out.println("Arc Vector size: "+ArcOBLength); //画节点框图 if (NodeOBLenght>0){ for(int i=0;i<NodeOBLenght;i++){ Node ob = (Node)this.NodeObject.elementAt(i); // elementAt(i)返回指定索引处的组件。 ob.DrawMyself(g); ob.SetNodeColor(Color.BLACK); } } //画弧段折线图 if(ArcOBLength>0){ for(int i=0;i<ArcOBLength;i++){ Arc ob = (Arc)this.ArcObject.elementAt(i); ob.DrawMyself(g); ob.SetArcColor(Color.BLACK); } } g.translate(2,2); } public void redraw() { //重画方法 repaint(); //通过调用repaint()方法，从而最终调用paint方法完成重画 } public void mousePressed(MouseEvent e) {//鼠标按下 switch (status) { case 1: break; case 2: break; case 3: ox = e.getX(); oy = e.getY(); // System.out.println(" press ox is : " + ox); // System.out.println("press oy is : " + oy); break; } } public void mouseClicked(MouseEvent e) {//鼠标点 int button = e.getButton(); int x = e.getX(); int y = e.getY(); switch (status) { case 1: switch (button) { case 1: System.out.println("search node"); Node tempnode = SearchNode(x, y); if (tempnode != null) { tempnode.SetNodeColor(Color.RED); node = tempnode; repaint(); } break; case 2: break; case 3: this.getGraphics().drawString("测试字符串", e.getX(), e.getY()); break; } this.IfDrag = false;//拖动假 break; case 2: switch (button) { case 1: if (this.ArcIfinit == true) { arc = new Arc(e.getX(), e.getY()); this.ArcObject.addElement(arc); this.ArcIfinit = false; } else { //System.out.print(ArcIfinit); int[] tep = new int[2]; tep[0] = e.getX(); tep[1] = e.getY(); arc.AddPoint(tep); } repaint(); break; case 2: break; case 3: if (arc != null) { arc.SetArcEnd(); int[] tep = new int[2]; tep[0] = e.getX(); tep[1] = e.getY(); arc.SetArcEndCoor(tep[0],tep[1]); //arc.AddPoint(tep); } this.status = 3;//绘制弧段已经结束,设置为空闲状态; repaint(); break; } break; case 3://搜索弧段的状态 switch (button) { case 1: // Arc temparc = this.SearchArc(x,y); Arc temparc = this.SearchArcTow(x,y); if(temparc==null){ System.out.println("aearch arc is null"); }else{ arc = temparc;//付给当前的arc对象 temparc.SetArcColor(Color.RED); repaint(); } break; case 2: break; case 3: this.getGraphics().drawString("测试字符串", e.getX(), e.getY()); break; } break; } } public void mouseReleased(MouseEvent e) {//鼠标松开 switch (status) { case 1: this.NodeIFinit = false; this.SelectNodeDrag = false; this.endNode.add(node); break; case 2: //this.ArcIfinit = false; case 3: SelectArcDrag = false;//松开鼠标后将拖放弧段设置假，要再次拖动必须先选 // this.arcList.add(o); } } public void mouseEntered(MouseEvent e) { } public void mouseExited(MouseEvent e) { } public void mouseDragged(MouseEvent e) { //鼠标拖动 int x = e.getX(); int y = e.getY(); switch(status){ case 1: if (this.NodeIFinit == true) { node = new Node(e.getX(), e.getY(),CurrentNodeName); this.NodeObject.add(node); this.IfDrag = true; this.NodeIFinit = false; repaint(); } else { if (IfDrag == true) { if (node != null) { node.SetHeightAndWidth(x, y); repaint(); } } else { if (SelectNodeDrag == true) { node.SetNodeMoved(x, y); node.DrawMyself(this.getGraphics()); repaint(); } } } break; case 2: break; case 3: if (SelectArcDrag == true) { if ( (arc != null) && (arcNodeindex != -1)) { arc.SetSelectedNode(arcNodeindex, x, y); repaint(); }else if((arc != null)&&(arcNodeindex == -1)){//选中的是最后一个不再Vetor里面的点 arc.SetSelectedNode(x, y); repaint(); } } break; } } public void mouseMoved(MouseEvent e) { switch (status) { case 1: break; case 2: if ( (arc != null) && (arc.GetArcIFEnd() == false)) { arc.SetCurrentCursor(e.getX(), e.getY()); //System.out.println("Current point: x is " + e.getX() + " y is " + // e.getY()); repaint(); } break; } } public Node SearchNode(int x,int y){ Node tempNode = null; if(NodeOBLenght!=0){ for(int i=0;i<NodeOBLenght;i+