java/Graph Editor/src/controllers/SelectionController.java

   1 package controllers;
   2
   3 import interfaces.*;
   4
   5 import java.awt.event.KeyEvent;
   6 import java.awt.event.KeyListener;
   7 import java.awt.event.MouseEvent;
   8 import java.awt.event.MouseListener;
   9 import java.awt.event.MouseMotionListener;
  10
  11 import models.GraphModel;
  12 import models.GraphVertex;
  13 import javax.swing.*;
  14
  15 import controllers.actions.Rename;
  16
  17 import java.util.List;
  18 import java.util.ArrayList;
  19
  20
  21 public class SelectionController implements MouseListener,MouseMotionListener,KeyListener{
  22         private GraphPanel object = null;
  23         private GraphFrame frame;
  24         private GraphVertex selectedObject = null;
  25         private GraphModel model;
  26
  27         private String typedStr;
  28         private String originalName;
  29         private boolean isChangingName;
  30
  31
  32         int relativeX = 0;
  33         int relativeY = 0;
  34         int clickX = 0;
  35         int clickY = 0;
  36
  37         public SelectionController(GraphFrame frame, GraphModel model){
  38                 isChangingName = false;
  39                 this.frame = frame;
  40                 frame.setSelectionController(this);
  41                 frame.addKeyListener(this);
  42                 setObject(frame.getPanel());
  43
  44                 setModel(model);
  45         }
  46
  47         public GraphModel getModel() {
  48                 return model;
  49         }
  50         public void setSelected(GraphVertex o)
  51         {
  52                 if(isChangingName){
  53                         this.doChangeName();
  54                 }
  55                 if(selectedObject != null){
  56                         selectedObject.setSelected(false);
  57                 }
  58                 if(o != null){
  59                         selectedObject = o;
  60                         o.setSelected(true);
  61                 }
  62         }
  63         public GraphVertex getSelectedVertex()
  64         {
  65                 return selectedObject;
  66         }
  67
  68         public void removeSelected()
  69         {
  70                 selectedObject = null;
  71         }
  72
  73
  74         public void setObject(GraphPanel panel){
  75                 if(object != null){
  76                         object.removeMouseListener(this);
  77                         object.removeMouseMotionListener(this);
  78                         object.removeKeyListener(this);
  79                 }
  80                 object = panel;
  81                 object.addMouseListener(this);
  82                 object.addMouseMotionListener(this);
  83                 object.addKeyListener(this);
  84         }
  85
  86         public void setModel(GraphModel model){
  87                 removeSelected();
  88                 this.model = model;
  89         }
  90
  91
  92         // Called when the typing stops, Either Return has been pressed or a
  93         // other object has been selected.
  94         private void doChangeName(){
  95                 selectedObject.setName(originalName);
  96                 this.frame.addAction(new Rename(typedStr,this));
  97                 this.isChangingName = false;
  98         }
  99
 100         private void doCancelNameChange(){
 101                 selectedObject.setName(this.originalName);
 102                 isChangingName = false;
 103         }
 104
 105         public void mouseClicked(MouseEvent arg0) {
 106                 if(arg0.getButton() == MouseEvent.BUTTON1){
 107                         if(arg0.getClickCount() == 2){
 108                                 this.typedStr = "";
 109                                 isChangingName = true;
 110                                 originalName = selectedObject.getName();
 111                                 System.out.println("DCLICK");
 112                         }else{
 113                                 this.setSelected(model.getGraphByCoordinate(arg0.getX(), arg0.getY()));
 114                         }
 115                 }
 116         }
 117
 118         public void mouseEntered(MouseEvent arg0) {
 119                 // TODO Auto-generated method stub
 120         }
 121
 122         public void mouseExited(MouseEvent arg0) {
 123                 // TODO Auto-generated method stub
 124         }
 125
 126         public void mousePressed(MouseEvent arg0) {
 127                 this.setSelected(model.getGraphByCoordinate(arg0.getX(), arg0.getY()));
 128
 129                 clickX = arg0.getX();
 130                 clickY = arg0.getY();
 131         }
 132
 133         public void mouseReleased(MouseEvent arg0) {
 134
 135         }
 136
 137         @Override
 138         public void mouseDragged(MouseEvent arg0) {
 139                 if(selectedObject != null){
 140                         selectedObject.setX(selectedObject.getX() + (arg0.getX() - clickX));
 141                         selectedObject.setY(selectedObject.getY() + (arg0.getY() - clickY));
 142                         clickX = arg0.getX();
 143                         clickY = arg0.getY();
 144                 }
 145         }
 146
 147         @Override
 148         public void mouseMoved(MouseEvent arg0) {
 149         }
 150
 151         @Override
 152         public void keyPressed(KeyEvent arg0) {
 153                 if(this.isChangingName && selectedObject != null){
 154                         if(arg0.getKeyCode() == KeyEvent.VK_ENTER){
 155                                 doChangeName();
 156                         }else if(arg0.getKeyCode() == KeyEvent.VK_ESCAPE){
 157                                 doCancelNameChange();
 158                         }else if(arg0.getKeyCode()== KeyEvent.VK_BACK_SPACE){
 159                                 this.typedStr = this.typedStr.substring(0,this.typedStr.length()-1);
 160                                 selectedObject.setName(typedStr);
 161                         }
 162                 }
 163         }
 164
 165         @Override
 166         public void keyReleased(KeyEvent arg0) {
 167
 168         }
 169
 170         private boolean acceptKeyForName(char a){
 171                 String l = new String();
 172                 l += a;
 173                 String acceptKeys = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789~!@#$%^&*()_+=-`[]{};'\":<>?,./\\| «①∞⁵‰‽ﬂ○";
 174                 return acceptKeys.contains(l);
 175         }
 176
 177         @Override
 178         public void keyTyped(KeyEvent arg0) {
 179                 // Todo Fix VK_ENTER + VK_ESCAPE
 180                 if(this.isChangingName && selectedObject != null && !arg0.isActionKey()){
 181                                 if(arg0.getKeyChar() != KeyEvent.CHAR_UNDEFINED && acceptKeyForName(arg0.getKeyChar())){
 182                                         this.typedStr += arg0.getKeyChar();
 183                                         System.out.println("Adding key");
 184                                         selectedObject.setName(typedStr); //SetName for PREVIEW reasons!
 185                                 }
 186                 }
 187         }
 188 }