net/systemeD/potlatch2/controller/ControllerState.as

   1 package net.systemeD.potlatch2.controller {
   2         import flash.events.*;
   3         import flash.display.*;
   4     import net.systemeD.halcyon.Map;
   5     import net.systemeD.halcyon.MapPaint;
   6     import net.systemeD.halcyon.connection.*;
   7     import net.systemeD.potlatch2.EditController;
   8         import net.systemeD.halcyon.Globals;
   9
  10     public class ControllerState {
  11
  12         protected var controller:EditController;
  13         protected var previousState:ControllerState;
  14
  15         protected var selectedNode:Node;
  16         public var selectedWay:Way;
  17
  18         public function ControllerState() {}
  19
  20         public function setController(controller:EditController):void {
  21             this.controller = controller;
  22         }
  23
  24         public function setPreviousState(previousState:ControllerState):void {
  25             if ( this.previousState == null )
  26                 this.previousState = previousState;
  27         }
  28
  29                 public function isSelectionState():Boolean {
  30                         return true;
  31                 }
  32
  33         public function processMouseEvent(event:MouseEvent, entity:Entity):ControllerState {
  34             return this;
  35         }
  36
  37         public function processKeyboardEvent(event:KeyboardEvent):ControllerState {
  38             return this;
  39         }
  40
  41                 public function get map():Map {
  42                         return controller.map;
  43                 }
  44
  45         public function enterState():void {}
  46         public function exitState(newState:ControllerState):void {}
  47
  48                 public function toString():String {
  49                         return "(No state)";
  50                 }
  51
  52                 protected function sharedKeyboardEvents(event:KeyboardEvent):ControllerState {
  53                         switch (event.keyCode) {
  54                                 case 68:        controller.map.paint.alpha=1.3-controller.map.paint.alpha; return null; // D
  55                                 case 87:        if (selectedWay) { return new SelectedWay(selectedWay); }; return null; // W
  56                                 case 90:        MainUndoStack.getGlobalStack().undo(); return null;                                             // Z
  57                         }
  58                         return null;
  59                 }
  60
  61                 protected function sharedMouseEvents(event:MouseEvent, entity:Entity):ControllerState {
  62                         var paint:MapPaint = getMapPaint(DisplayObject(event.target));
  63             var focus:Entity = getTopLevelFocusEntity(entity);
  64
  65                         if ( paint && paint.isBackground ) {
  66                                 if ( event.type == MouseEvent.MOUSE_DOWN && ((event.shiftKey && event.ctrlKey) || event.altKey) ) {
  67                                         // alt-click to pull data out of vector background layer
  68                                         var newEntity:Entity=paint.findSource().pullThrough(entity,controller.connection);
  69                                         if (entity is Way) { return new SelectedWay(newEntity as Way); }
  70                                         else if (entity is Node) { return new SelectedPOINode(newEntity as Node); }
  71                                 } else if ( event.type == MouseEvent.MOUSE_UP ) {
  72                                         return (this is NoSelection) ? null : new NoSelection();
  73                                 } else { return null; }
  74                         }
  75
  76                         if ( event.type == MouseEvent.MOUSE_DOWN ) {
  77                                 if ( entity is Way ) {
  78                                         // click way
  79                                         return new DragWay(focus as Way, event);
  80                                 } else if ( focus is Node ) {
  81                                         // select POI node
  82                                         return new DragPOINode(entity as Node,event,false);
  83                                 } else if ( entity is Node && selectedWay && entity.hasParent(selectedWay) ) {
  84                                         // select node within this way
  85                         return new DragWayNode(selectedWay,  getNodeIndex(selectedWay,entity as Node),  event, false);
  86                                 } else if ( entity is Node && focus is Way ) {
  87                                         // select way node
  88                                         return new DragWayNode(focus as Way, getNodeIndex(focus as Way,entity as Node), event, false);
  89                                 } else if ( controller.keyDown(32) ) {
  90                                         // drag map
  91                                         return new DragBackground(event);
  92                                 }
  93                         } else if ( event.type == MouseEvent.MOUSE_UP && focus == null && map.dragstate!=map.DRAGGING) {
  94                                 return (this is NoSelection) ? null : new NoSelection();
  95                         } else if ( event.type == MouseEvent.ROLL_OVER ) {
  96                                 controller.map.setHighlight(focus, { hover: true });
  97                         } else if ( event.type == MouseEvent.MOUSE_OUT ) {
  98                                 controller.map.setHighlight(focus, { hover: false });
  99                         }
 100                         return null;
 101                 }
 102
 103                 public static function getTopLevelFocusEntity(entity:Entity):Entity {
 104                         if ( entity is Node ) {
 105                                 for each (var parent:Entity in entity.parentWays) {
 106                                         return parent;
 107                                 }
 108                                 return entity;
 109                         } else if ( entity is Way ) {
 110                                 return entity;
 111                         } else {
 112                                 return null;
 113                         }
 114                 }
 115
 116                 protected function getMapPaint(d:DisplayObject):MapPaint {
 117                         while (d) {
 118                                 if (d is MapPaint) { return MapPaint(d); }
 119                                 d=d.parent;
 120                         }
 121                         return null;
 122                 }
 123
 124                 protected function getNodeIndex(way:Way,node:Node):uint {
 125                         for (var i:uint=0; i<way.length; i++) {
 126                                 if (way.getNode(i)==node) { return i; }
 127                         }
 128                         return null;
 129                 }
 130
 131                 protected function repeatTags(object:Entity):void {
 132                         if (!controller.clipboards[object.getType()]) { return; }
 133                         object.suspend();
 134
 135                     var undo:CompositeUndoableAction = new CompositeUndoableAction("Repeat tags");
 136                         for (var k:String in controller.clipboards[object.getType()]) {
 137                                 object.setTag(k, controller.clipboards[object.getType()][k], undo.push)
 138                         }
 139                         MainUndoStack.getGlobalStack().addAction(undo);
 140
 141                         object.resume();
 142                 }
 143     }
 144 }