Flex / ActionScript更改形狀填充顏色

Question

這是我的代碼：

private function drawRect():Sprite{
   var rect:Sprite = new Sprite();
   rect.name = "rectName";
   rect.graphics.beginFill(0xffff00);
   rect.graphics.lineStyle(1,0x000000);
   rect.graphics.drawRect(0,0,6,6);
   rect.graphics.endFill();
   rect.addEventListener(MouseEvent.MOUSE_OVER, changeColor);
   rect.addEventListener(MouseEvent.MOUSE_OUT, changeColorBack);
   return rect;
}

private function changeColor(e:MouseEvent):void{
   var newColor:ColorTransform = new ColorTransform();
   newColor.color = 0x00ffff;
   e.target.transform.colorTransform = newColor;
}

private function changeColorBack(e:MouseEvent):void{
   var newColor:ColorTransform = new ColorTransform();
   newColor.color = 0xffff00;
   e.target.transform.colorTransform = newColor;
}

changeColor和changeColorBack函數可以工作，但是我不希望它們如何工作。 它們會更改我的Sprite的整個顏色，包括矩形周圍的線條邊框（描邊）。 我只想更改矩形內部的顏色並保持矩形的邊框。 我在ColorTransform中沒有看到允許我指定lineStyle的屬性，所以有沒有其他方法可以改變我的矩形的填充顏色並保持其邊框？

Answer 1

ColorTransform應用於整個MovieClip無論在其graphics屬性中繪制了什么。 您可以在每次需要時重新繪制矩形：

import flash.display.Sprite;

function drawRect(target:Sprite, clr:Number):void{
   target.graphics.clear();
   target.graphics.beginFill(clr);
   target.graphics.lineStyle(1,0x000000);
   target.graphics.drawRect(0,0,6,6);
   target.graphics.endFill();
}

function changeColor(e:MouseEvent):void{
   drawRect(Sprite(e.target), 0x00ffff);
}

function changeColorBack(e:MouseEvent):void{
   drawRect(Sprite(e.target), 0xffff00);
}

var rect:Sprite = new Sprite();
rect.addEventListener(MouseEvent.MOUSE_OVER, changeColor);
rect.addEventListener(MouseEvent.MOUSE_OUT, changeColorBack);
this.addChild(rect);

drawRect(rect, 0xffff00);

或者，如果出於某種原因而設置使用ColorTransform ，則可以從兩個單獨的Sprites （外部和內部）構建輪廓矩形，並僅使用ColorTransform定位內部Sprite ：

import flash.display.Sprite;

function getRectangle(w:Number, h:Number, x:Number, y:Number, clr:Number):Sprite{
   var sprite:Sprite = new Sprite();
   sprite.name = "rectName";
   sprite.graphics.beginFill(clr);
   sprite.graphics.drawRect(x, y, w, h);
   sprite.graphics.endFill();

   return sprite;
}

function changeColor(e:MouseEvent):void{
   var newColor:ColorTransform = new ColorTransform();
   newColor.color = 0x00ffff;
   inner.transform.colorTransform = newColor;
}

function changeColorBack(e:MouseEvent):void{
   var newColor:ColorTransform = new ColorTransform();
   newColor.color = 0xffff00;
   inner.transform.colorTransform = newColor;
}

var rect:Sprite = new Sprite();
rect.addEventListener(MouseEvent.MOUSE_OVER, changeColor);
rect.addEventListener(MouseEvent.MOUSE_OUT, changeColorBack);
this.addChild(rect);

// Outer rectangle for the outline
var outer:Sprite = getRectangle(8, 8, 0, 0, 0x000000);
rect.addChild(outer);

// Smaller inner rectangle which can be targeted with the color transform
var inner:Sprite = getRectangle(6, 6, 1, 1, 0xffff00);
rect.addChild(inner);