Want to make a paint bucket and open feature

Question

I am making this drawing application that so far contains a pencil tool, eraser, text tool, clear tool, and even save image feature. There are a few more features that I would like to add, including a paint bucket tool and a open image feature, but I am not sure exactly how to code them. Here is my code for the whole program:
package
import PNGEncoder;
import flash.display.MovieClip;
import flash.display.Shape;
import flash.display.DisplayObject;
import flash.text.TextField;
import flash.text.TextFormat;
import flash.text.TextFieldType;
import flash.text.TextFieldAutoSize;
import flash.display.BitmapData;
import flash.geom.ColorTransform;
import flash.events.MouseEvent;
import flash.events.Event;
import flash.utils.ByteArray;
import flash.net.FileReference;
public class Main extends MovieClip
/* Variables */
/* Pencil Tool shape, everything drawed with this tool and eraser is stored inside board.pencilDraw */
var pencilDraw:Shape = new Shape();
/* Text format */
var textformat:TextFormat = new TextFormat();
/* Colors */
var colorsBmd:BitmapData;
var pixelValue:uint;
var activeColor:uint = 0x000000;
/* Save dialog instance */
var saveDialog:SaveDialog;
/* Active var, to check wich tool is active */
var active:String;
/* Shape size color */
var ct:ColorTransform = new ColorTransform();
public function Main():void
textformat.font = "Arial";
textformat.bold = true;
textformat.size = 24;
convertToBMD();
addListeners();
/* Hide tools highlights */
pencil.visible = false;
hideTools(eraser, txt);
/* Pencil Tool */
private function PencilTool(e:MouseEvent):void
/* Quit active tool */
quitActiveTool();
/* Set to Active */
active = "Pencil";
/* Listeners */
board.addEventListener(MouseEvent.MOUSE_DOWN, startPencilTool);
board.addEventListener(MouseEvent.MOUSE_UP, stopPencilTool);
/* Highlight */
highlightTool(pencil);
hideTools(eraser, txt);
ct.color = activeColor;
shapeSize.transform.colorTransform = ct;
private function startPencilTool(e:MouseEvent):void
pencilDraw = new Shape();
board.addChild(pencilDraw);
pencilDraw.graphics.moveTo(mouseX, mouseY);
pencilDraw.graphics.lineStyle(shapeSize.width, activeColor);
board.addEventListener(MouseEvent.MOUSE_MOVE, drawPencilTool);
private function drawPencilTool(e:MouseEvent):void
pencilDraw.graphics.lineTo(mouseX, mouseY);
private function stopPencilTool(e:MouseEvent):void
board.removeEventListener(MouseEvent.MOUSE_MOVE, drawPencilTool);
/* Eraser Tool */
private function EraserTool(e:MouseEvent):void
/* Quit active tool */
quitActiveTool();
/* Set to Active */
active = "Eraser";
/* Listeners */
board.addEventListener(MouseEvent.MOUSE_DOWN, startEraserTool);
board.addEventListener(MouseEvent.MOUSE_UP, stopEraserTool);
/* Highlight */
highlightTool(eraser);
hideTools(pencil, txt);
ct.color = 0x000000;
shapeSize.transform.colorTransform = ct;
private function startEraserTool(e:MouseEvent):void
pencilDraw = new Shape();
board.addChild(pencilDraw);
pencilDraw.graphics.moveTo(mouseX, mouseY);
pencilDraw.graphics.lineStyle(shapeSize.width, 0xFFFFFF);
board.addEventListener(MouseEvent.MOUSE_MOVE, drawEraserTool);
private function drawEraserTool(e:MouseEvent):void
pencilDraw.graphics.lineTo(mouseX, mouseY);
function stopEraserTool(e:MouseEvent):void
board.removeEventListener(MouseEvent.MOUSE_MOVE, drawEraserTool);
/* Text Tool */
private function TextTool(e:MouseEvent):void
/* Quit active tool */
quitActiveTool();
/* Set to Active */
active = "Text";
/* Listener */
board.addEventListener(MouseEvent.MOUSE_UP, writeText);
/* Highlight */
highlightTool(txt);
hideTools(pencil, eraser);
private function writeText(e:MouseEvent):void
var textfield = new TextField();
textfield.type = TextFieldType.INPUT;
textfield.autoSize = TextFieldAutoSize.LEFT;
textfield.selectable = false;
textfield.defaultTextFormat = textformat;
textfield.textColor = activeColor;
textfield.x = mouseX;
textfield.y = mouseY;
stage.focus = textfield;
board.addChild(textfield);
/* Save */
private function export():void
var bmd:BitmapData = new BitmapData(600, 290);
bmd.draw(board);
var ba:ByteArray = PNGEncoder.encode(bmd);
var file:FileReference = new FileReference();
file.addEventListener(Event.COMPLETE, saveSuccessful);
file.save(ba, "ballin.png");
private function saveSuccessful(e:Event):void
saveDialog = new SaveDialog();
addChild(saveDialog);
saveDialog.closeBtn.addEventListener(MouseEvent.MOUSE_UP, closeSaveDialog);
private function closeSaveDialog(e:MouseEvent):void
removeChild(saveDialog);
private function save(e:MouseEvent):void
export();
/* Clear Tool */
private function clearBoard(e:MouseEvent):void
/* Create a blank rectangle on top of everything but board */
var blank:Shape = new Shape();
blank.graphics.beginFill(0xFFFFFF);
blank.graphics.drawRect(0, 0, board.width, board.height);
blank.graphics.endFill();
board.addChild(blank);
/* Default colors function */
private function convertToBMD():void
colorsBmd = new BitmapData(colors.width,colors.height);
colorsBmd.draw(colors);
private function chooseColor(e:MouseEvent):void
pixelValue = colorsBmd.getPixel(colors.mouseX,colors.mouseY);
activeColor = pixelValue;//uint can be RGB!
ct.color = activeColor;
shapeSize.transform.colorTransform = ct;
/* Quit active function */
private function quitActiveTool():void
switch (active)
case "Pencil" :
board.removeEventListener(MouseEvent.MOUSE_DOWN, startPencilTool);
board.removeEventListener(MouseEvent.MOUSE_UP, stopPencilTool);
case "Eraser" :
board.removeEventListener(MouseEvent.MOUSE_DOWN, startEraserTool);
board.removeEventListener(MouseEvent.MOUSE_UP, stopEraserTool);
case "Text" :
board.removeEventListener(MouseEvent.MOUSE_UP, writeText);
default :
/* Highlight active Tool */
private function highlightTool(tool:DisplayObject):void
tool.visible=true;
private function hideTools(tool1:DisplayObject, tool2:DisplayObject):void
tool1.visible=false;
tool2.visible=false;
/* Change shape size */
private function changeShapeSize(e:MouseEvent):void
if (shapeSize.width >= 50)
shapeSize.width = 1;
shapeSize.height = 1;
/* TextFormat */
textformat.size = 16;
else
shapeSize.width += 5;
shapeSize.height=shapeSize.width;
/* TextFormat */
textformat.size+=5;
private function addListeners():void
pencilTool.addEventListener(MouseEvent.MOUSE_UP, PencilTool);
eraserTool.addEventListener(MouseEvent.MOUSE_UP, EraserTool);
textTool.addEventListener(MouseEvent.MOUSE_UP, TextTool);
saveButton.addEventListener(MouseEvent.MOUSE_UP, save);
clearTool.addEventListener(MouseEvent.MOUSE_UP, clearBoard);
colors.addEventListener(MouseEvent.MOUSE_UP, chooseColor);
sizePanel.addEventListener(MouseEvent.MOUSE_UP, changeShapeSize);
shapeSize.addEventListener(MouseEvent.MOUSE_UP, changeShapeSize);
Any ideas on how to code these features?

Answer 1

any1?