simgui.java

来自「一个小型网络仿真器的实现」· Java 代码 · 共 1,854 行 · 第 1/5 页

/*
   JaNetSim  ---  Java Network Simulator
   -------------------------------------

   This software was developed at the Network Research Lab, Faculty of
   Computer Science and Information Technology (FCSIT), University of Malaya.
   This software may be used and distributed freely. FCSIT assumes no responsibility
   whatsoever for its use by other parties, and makes no guarantees, expressed or
   implied, about its quality, reliability, or any other characteristic.

   We would appreciate acknowledgement if the software is used.

   FCSIT ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION AND
   DISCLAIM ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING
   FROM THE USE OF THIS SOFTWARE.
*/

package janetsim;

import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class SimGUI {
  private Sim theSim=null; //reference to the Sim
  private JFrame mainFrame=null; //the main window

  private SimPanel simArea=null; //simulation area
  private JScrollPane mainScrollPane=null; //for fitting in scrollpane
  private JViewport mainViewport=null; //for fast scroll test

  private CommandListener cmdListener=null; //main command handler

  private JMenu compMenu=null; //the component creation menu
  private JLabel clockLabel=null; //label for clock
  private JButton startButton=null; //start button
  private JButton connectButton=null; //connect button
  private JCheckBoxMenuItem fastScrollCB=null; //the fast scroll checkbox
  private JCheckBoxMenuItem linktagCB=null;
  private JCheckBoxMenuItem apptagCB=null;
  private JMenuItem clearCopyBuffer=null;

  private boolean linkTaggingDrag=true; //straight link with others
  private boolean appTaggingDrag=true; //move apps with others

  private Point lastActivate=null; //location of last popup menu activation

  private long yieldPeriod=Sim.DEFAULT_YIELD; //GUI priority
  private JDialog GUIDialog=null; //GUI priority dialog
  private JSlider GUISlider=null; //GUI priority slider

  private boolean allowSimulation=true; //(false when in connect mode)

  private boolean isZooming=false; //whether it's non-default size currently
  private double zoomFactor=1.0; //the zooming factor
  private SimDialog zoomTool=null; //the zoom tool dialog
  private JSlider zoomSlider=null; //the zoom tool slider

  private java.util.List copiedComps=null; //copy 'buffer'
  private java.util.List openDialogs=null; //opened property dialogs
  private java.util.List meterDialogs=null; //opened meter dialogs
  private java.util.List customDialogs=null; //opened custom dialogs

  private JFileChooser fileChooser=null; //file open dialog
  private File currentFile=null;

  //variables used for swing invokeLater event threads...
  private long evthread_tick;

///////////////////////// end fields //////////////////////////////////////

  private class CommandListener implements ActionListener,ItemListener {
    public void actionPerformed(ActionEvent e) {
      String cmd=e.getActionCommand();

      if(cmd.equals("Close All")) {
        windowCloseAll();
        mainFrame.repaint();
      }
      else if(cmd.equals("Select All")) {
        if(!allowSimulation) return;
  
        java.util.List components=theSim.getSimComponents();
        for(int i=0;i<components.size();i++) {
          ((SimComponent)components.get(i)).setSelected(true);
        }
        mainFrame.repaint();
      }
      else if(cmd.equals("Select By Class")) {
        if(!allowSimulation) return;
  
        java.util.List sel=getSelected();
        if(sel.isEmpty()) {
          JOptionPane.showMessageDialog(mainFrame,"I need a reference component, select one first.",
                                           "Select By Class",JOptionPane.INFORMATION_MESSAGE);
          return;
        }
        if(sel.size()>1) {
          JOptionPane.showMessageDialog(mainFrame,"Please select ONE component only as the reference.",
                                           "Select By Class",JOptionPane.INFORMATION_MESSAGE);
          return;
        }
        String theclass=((SimComponent)sel.get(0)).getCompClass();
        java.util.List components=theSim.getSimComponents();
        for(int i=0;i<components.size();i++) {
          SimComponent thiscomp=(SimComponent)components.get(i);
          if(thiscomp.getCompClass().equals(theclass)) thiscomp.setSelected(true);
        }
        mainFrame.repaint();
      }
      else if(cmd.equals("Select By Type")) {
        if(!allowSimulation) return;
  
        java.util.List sel=getSelected();
        if(sel.isEmpty()) {
          JOptionPane.showMessageDialog(mainFrame,"I need a reference component, select one first.",
                                           "Select By Type",JOptionPane.INFORMATION_MESSAGE);
          return;
        }
        if(sel.size()>1) {
          JOptionPane.showMessageDialog(mainFrame,"Please select ONE component only as the reference.",
                                           "Select By Type",JOptionPane.INFORMATION_MESSAGE);
          return;
        }
        Class thetype=sel.get(0).getClass();
        java.util.List components=theSim.getSimComponents();
        for(int i=0;i<components.size();i++) {
          SimComponent thiscomp=(SimComponent)components.get(i);
          if(thiscomp.getClass().equals(thetype)) thiscomp.setSelected(true);
        }
        mainFrame.repaint();
      }
      else if(cmd.equals("Select By Name Prefix")) {
        if(!allowSimulation) return;
  
        String prefix=JOptionPane.showInputDialog(mainFrame,"Name Prefix:",
                      "Select By Name Prefix",JOptionPane.QUESTION_MESSAGE);
        if(prefix==null) return;
        prefix=prefix.trim();
  
        java.util.List components=theSim.getSimComponents();
        for(int i=0;i<components.size();i++) {
          SimComponent thiscomp=(SimComponent)components.get(i);
          if(thiscomp.getName().startsWith(prefix)) thiscomp.setSelected(true);
          else thiscomp.setSelected(false);
        }
        mainFrame.repaint();
      }
      else if(cmd.equals("Reset Log File")) {
        if(!allowSimulation) return;
        if(!checkRunning()) return;
  
        if(currentFile!=null)
          theSim.resetLogFile(currentFile.getName()+".log");
        else
          theSim.resetLogFile(Sim.SIM_PACKAGE+".log");

        JOptionPane.showMessageDialog(mainFrame,"Done!","Reset Log File",JOptionPane.INFORMATION_MESSAGE);
        mainFrame.repaint();
      }
      else if(cmd.equals("Global Set Value")) {
        if(!checkRunning()) return;

        java.util.List sel=getSelected();
        if(sel.isEmpty()) return;

        int i;
        Class thetype=sel.get(0).getClass();
        for(i=1;i<sel.size();i++) {
          if(!sel.get(i).getClass().equals(thetype)) {
            JOptionPane.showMessageDialog(mainFrame,"Not all selected components are of the same type!",
                                            "Error",JOptionPane.INFORMATION_MESSAGE);
            mainFrame.repaint();
            return;
          }
        }

        //generate the parameter list
        SimParameter [] params=((SimComponent)sel.get(0)).getParameters();
        if(params.length==0) return; //safety check, very rare...

        String [] paramnames=new String[params.length];
        for(i=0;i<params.length;i++) paramnames[i]=params[i].getName();

        new GSDialogListener(sel,paramnames);
        mainFrame.repaint();
      }
      else if(cmd.equals("Properties")) {
        java.util.List sel=getSelected();
        int i,j;
        outer: for(i=0;i<sel.size();i++) {
          SimComponent thisComp=(SimComponent)sel.get(i);
  
          //look for opened dialog
          for(j=0;j<openDialogs.size();j++) {
            JDialog dialog=(JDialog)openDialogs.get(j);
            if(dialog.getTitle().equals(thisComp.getName()+" - Properties")) {
              dialog.requestFocus();
              continue outer;
            }
          }

          //if not found, open a new one
          JDialog dialog=createPropertyDialog(thisComp);

          //position it tagged on that component
          Point locscr=simArea.getLocationOnScreen();
          Dimension ddim=dialog.getPreferredSize();
          Dimension sdim=Toolkit.getDefaultToolkit().getScreenSize();
          int x,y;
          if(isZooming) {
            x=(int)(locscr.x+thisComp.getX()*zoomFactor);
            y=(int)(locscr.y+thisComp.getY()*zoomFactor);
          }
          else {
            x=locscr.x+thisComp.getX();
            y=locscr.y+thisComp.getY();
          }
          int h=ddim.height;
          if(h>sdim.height/2) h=sdim.height/2;
          if(x+ddim.width>sdim.width) x=sdim.width-ddim.width;
          if(y+h>sdim.height) y=sdim.height-h;
          dialog.setBounds(x,y,ddim.width,h);

          openDialogs.add(dialog);
          dialog.show();
        }
      }
      else if(cmd.equals("Fit All")) {
        doFit();
      }
      else if(cmd.equals("End Connect")) {
        endConnectMode();
      }
      else if(cmd.equals("Connect Mode")) {
        if(!checkRunning()) return;
  
        connectButton.setText("End Connect");
        allowSimulation=false;
        simArea.changeMode(SimPanel.CONNECT);
      }
      else if(cmd.equals("Flip Horizontally")) {
        java.util.List sel=getSelected();
        if(sel.isEmpty()) return;
  
        int i,x,minx=Integer.MAX_VALUE,maxx=Integer.MIN_VALUE;
        for(i=0;i<sel.size();i++) {
          SimComponent thisComp=(SimComponent)sel.get(i);
          x=thisComp.getX();
          if(x<minx) minx=x;
          if(x>maxx) maxx=x;
        }
        x=(maxx+minx)/2;
        for(i=0;i<sel.size();i++) {
          SimComponent thisComp=(SimComponent)sel.get(i);
          thisComp.setLocation(x+x-thisComp.getX(),thisComp.getY());
        }
        GUIChanged();
        mainFrame.repaint();
      }
      else if(cmd.equals("Flip Vertically")) {
        java.util.List sel=getSelected();
        if(sel.isEmpty()) return;
  
        int i,y,miny=Integer.MAX_VALUE,maxy=Integer.MIN_VALUE;
        for(i=0;i<sel.size();i++) {
          SimComponent thisComp=(SimComponent)sel.get(i);
          y=thisComp.getY();
          if(y<miny) miny=y;
          if(y>maxy) maxy=y;
        }
        y=(miny+maxy)/2;
        for(i=0;i<sel.size();i++) {
          SimComponent thisComp=(SimComponent)sel.get(i);
          thisComp.setLocation(thisComp.getX(),y+y-thisComp.getY());
        }
        GUIChanged();
        mainFrame.repaint();
      }
      else if(cmd.equals("Disconnect")) {
        if(!checkRunning()) return;

        java.util.List sel=getSelected();
        for(int i=0;i<sel.size();i++) {
          ((SimComponent)sel.get(i)).removeNeighbors(sel);
        }
        connectionsChanged();
        mainFrame.repaint();
      }
      else if(cmd.equals("Copy")) {
        java.util.List sel=getSelected();
        if(sel.isEmpty()) return;
        copiedComps=getSelected();
        clearCopyBuffer.setEnabled(true);
      }
      else if(cmd.equals("Clear Copy Buffer")) {
        copiedComps=null;
        clearCopyBuffer.setEnabled(false);
      }
      else if(cmd.equals("GUI Priority...")) {
        if(!checkRunning()) return;

        GUIDialog=new JDialog(mainFrame,"GUI Priority",true);
        GUISlider=new JSlider(JSlider.HORIZONTAL,0,10,
                                10-(int)(Math.log(yieldPeriod)/Math.log(3)));
        GUISlider.setMinorTickSpacing(1);
        GUISlider.setPaintTicks(true);
        java.util.Hashtable labelTable=new java.util.Hashtable();
        labelTable.put(new Integer(0),new JLabel("Lowest (!)"));
        labelTable.put(new Integer(50),new JLabel("Highest"));
        GUISlider.setLabelTable(labelTable);
        GUISlider.setPaintLabels(true);
        GUISlider.setSnapToTicks(true);

        JPanel pane=new JPanel();
        ActionListener listener=new ActionListener() {
            public void actionPerformed(ActionEvent e) {
              if(e.getActionCommand().equals("OK")) {
                yieldPeriod = (long)Math.pow(3,10-GUISlider.getValue());
              }
              GUIDialog.dispose();
            }
          };
        JButton btn=new JButton("OK");
        btn.addActionListener(listener);
        pane.add(btn);
        btn=new JButton("Cancel");
        btn.addActionListener(listener);
        pane.add(btn);

        JPanel basepane=new JPanel(new BorderLayout());
        basepane.add(GUISlider,BorderLayout.CENTER);
        basepane.add(pane,BorderLayout.SOUTH);

        GUIDialog.setContentPane(basepane);
        GUIDialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
        GUIDialog.addWindowListener(new WindowAdapter() {
            public void windowClosed(WindowEvent e) {
              GUIDialog=null;
              GUISlider=null;
            }
          });
        GUIDialog.pack();
        GUIDialog.setResizable(false);

        Dimension ddim=GUIDialog.getPreferredSize();
        Dimension sdim=Toolkit.getDefaultToolkit().getScreenSize();
        GUIDialog.setLocation((sdim.width-ddim.width)/2,(sdim.height-ddim.height)/2);
        GUIDialog.show();
      }
      else if(cmd.equals("Paste")) {
        if(!checkRunning()) return;
        if(copiedComps.isEmpty()) return; //nothing copied
  
        java.util.List newcomps=new java.util.ArrayList();
        int i,j;
        int x,y;
        int minx=Integer.MAX_VALUE,maxx=Integer.MIN_VALUE;
        int miny=Integer.MAX_VALUE,maxy=Integer.MIN_VALUE;
        for(i=0;i<copiedComps.size();i++) {
          SimComponent thisComp=(SimComponent)copiedComps.get(i);
          x=thisComp.getX();
          y=thisComp.getY();
          if(x<minx) minx=x;
          if(x>maxx) maxx=x;
          if(y<miny) miny=y;
          if(y>maxy) maxy=y;
        }
        //get average (center of region)