net/systemeD/potlatch2/controller/SelectedWay.as

   1 package net.systemeD.potlatch2.controller {
   2         import flash.events.*;
   3         import flash.display.DisplayObject;
   4         import flash.ui.Keyboard;
   5     import net.systemeD.potlatch2.EditController;
   6     import net.systemeD.potlatch2.tools.Parallelise;
   7     import net.systemeD.potlatch2.tools.Quadrilateralise;
   8     import net.systemeD.potlatch2.tools.Simplify;
   9     import net.systemeD.halcyon.connection.*;
  10         import net.systemeD.halcyon.MapPaint;
  11         import net.systemeD.halcyon.WayUI;
  12         import net.systemeD.halcyon.Globals;
  13
  14     public class SelectedWay extends ControllerState {
  15         protected var initWay:Way;
  16
  17         public function SelectedWay(way:Way) {
  18             initWay = way;
  19         }
  20
  21         protected function selectWay(way:Way):void {
  22             if ( way == selectedWay )
  23                 return;
  24
  25             clearSelection();
  26             controller.setSelectedEntity(way);
  27             controller.map.setHighlight(way, { selected: true, showNodes: true, hover: false });
  28             selectedWay = way;
  29             initWay = way;
  30         }
  31
  32         protected function clearSelection():void {
  33             if ( selectedWay != null ) {
  34                 controller.map.setHighlight(selectedWay, { selected: false, showNodes: false, hover: false });
  35                 controller.setSelectedEntity(null);
  36                 selectedWay = null;
  37             }
  38         }
  39
  40         override public function processMouseEvent(event:MouseEvent, entity:Entity):ControllerState {
  41                         if (event.type==MouseEvent.MOUSE_MOVE || event.type==MouseEvent.ROLL_OVER || event.type==MouseEvent.MOUSE_OUT) { return this; }
  42             var focus:Entity = getTopLevelFocusEntity(entity);
  43
  44             if ( event.type == MouseEvent.MOUSE_UP && entity is Node && event.shiftKey ) {
  45                                 // start new way
  46                                 var way:Way = controller.connection.createWay({}, [entity], MainUndoStack.getGlobalStack().addAction);
  47                                 return new DrawWay(way, true, false);
  48                         } else if ( event.type == MouseEvent.MOUSE_DOWN && entity is Way && event.ctrlKey ) {
  49                                 // merge way
  50                                 return mergeWith(entity as Way);
  51                         } else if ( event.type == MouseEvent.MOUSE_DOWN && entity is Way && focus==selectedWay && event.shiftKey) {
  52                                 // insert node within way (shift-click)
  53                 var d:DragWayNode=new DragWayNode(selectedWay, addNode(event), event, true);
  54                                 d.forceDragStart();
  55                                 return d;
  56                         }
  57                         var cs:ControllerState = sharedMouseEvents(event, entity);
  58                         return cs ? cs : this;
  59         }
  60
  61                 override public function processKeyboardEvent(event:KeyboardEvent):ControllerState {
  62                         switch (event.keyCode) {
  63                                 case 80:                                        return new SelectedParallelWay(selectedWay);
  64                                 case 81:                                        Quadrilateralise.quadrilateralise(selectedWay); return this;
  65                 case 82:                    selectedWay.reverseNodes(MainUndoStack.getGlobalStack().addAction); return this;
  66                 case 89:                    Simplify.simplify(selectedWay, controller.map, true); return this;
  67                                 case Keyboard.BACKSPACE:        if (event.shiftKey) { return deleteWay(); } break;
  68                                 case Keyboard.DELETE:           if (event.shiftKey) { return deleteWay(); } break;
  69                         }
  70                         var cs:ControllerState = sharedKeyboardEvents(event);
  71                         return cs ? cs : this;
  72                 }
  73
  74         protected function addNode(event:MouseEvent):int {
  75                         // find which other ways are under the mouse
  76                         var ways:Array=[]; var w:Way;
  77                         for each (var wayui:WayUI in controller.map.paint.wayuis) {
  78                                 w=wayui.hitTest(event.stageX, event.stageY);
  79                                 if (w && w!=selectedWay) { ways.push(w); }
  80                         }
  81
  82             var lat:Number = controller.map.coord2lat(event.localY);
  83             var lon:Number = controller.map.coord2lon(event.localX);
  84             var undo:CompositeUndoableAction = new CompositeUndoableAction("Insert node");
  85             var node:Node = controller.connection.createNode({}, lat, lon, undo.push);
  86             var index:int = selectedWay.insertNodeAtClosestPosition(node, true, undo.push);
  87                         for each (w in ways) { w.insertNodeAtClosestPosition(node, true, undo.push); }
  88             MainUndoStack.getGlobalStack().addAction(undo);
  89                         return index;
  90         }
  91
  92                 protected function mergeWith(otherWay:Way):ControllerState {
  93                         var way1:Way;
  94                         var way2:Way;
  95                         if ( selectedWay.id < otherWay.id && selectedWay.id >= 0 ) {
  96                             way1 = selectedWay;
  97                             way2 = otherWay;
  98                         } else {
  99                             way1 = otherWay;
 100                             way2 = selectedWay;
 101                         }
 102
 103                         var undo:Function = MainUndoStack.getGlobalStack().addAction;
 104
 105                         // find common point
 106                         if (way1 == way2) { return this; }
 107                         if      (way1.getNode(0)   ==way2.getNode(0)   ) { way1.mergeWith(way2,0,0,undo); }
 108                         else if (way1.getNode(0)   ==way2.getLastNode()) { way1.mergeWith(way2,0,way2.length-1,undo); }
 109                         else if (way1.getLastNode()==way2.getNode(0)   ) { way1.mergeWith(way2,way1.length-1,0,undo); }
 110                         else if (way1.getLastNode()==way2.getLastNode()) { way1.mergeWith(way2,way1.length-1,way2.length-1,undo); }
 111                         return new SelectedWay(way1);
 112                 }
 113
 114                 public function deleteWay():ControllerState {
 115                         selectedWay.remove(MainUndoStack.getGlobalStack().addAction);
 116                         return new NoSelection();
 117                 }
 118
 119         override public function enterState():void {
 120             selectWay(initWay);
 121                         Globals.vars.root.addDebug("**** -> "+this+" "+selectedWay.id);
 122         }
 123         override public function exitState():void {
 124             clearSelection();
 125                         Globals.vars.root.addDebug("**** <- "+this);
 126         }
 127
 128         override public function toString():String {
 129             return "SelectedWay";
 130         }
 131
 132     }
 133 }