| //////////////////////////////////////////////////////////////////////////////// |
| // |
| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| package arcade.skins |
| { |
| |
| import flash.display.Bitmap; |
| import flash.display.BitmapData; |
| import flash.display.IBitmapDrawable; |
| import flash.events.Event; |
| import flash.filters.GlowFilter; |
| import flash.geom.ColorTransform; |
| import flash.geom.Matrix; |
| import flash.geom.Point; |
| import flash.geom.Rectangle; |
| |
| import mx.core.UIComponent; |
| import mx.core.mx_internal; |
| |
| import spark.components.supportClasses.SkinnableComponent; |
| |
| /** |
| * Focus skins for Spark components. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| public class FocusSkin extends UIComponent |
| { |
| //-------------------------------------------------------------------------- |
| // |
| // Class constants |
| // |
| //-------------------------------------------------------------------------- |
| |
| // TODO: Make this a style property? |
| private const FOCUS_THICKNESS:int = 2; |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Class variables |
| // |
| //-------------------------------------------------------------------------- |
| |
| private static var colorTransform:ColorTransform = new ColorTransform( |
| 1.01, 1.01, 1.01, 2); |
| private static var glowFilter:GlowFilter = new GlowFilter( |
| 0x70B2EE, 0.85, 5, 5, 3, 1, false, true); |
| private static var rect:Rectangle = new Rectangle();; |
| private static var filterPt:Point = new Point(); |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Constructor |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * Constructor. |
| */ |
| public function FocusSkin() |
| { |
| super(); |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Variables |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * Bitmap capture of the focused component. This bitmap includes a glow |
| * filter that shows the focus glow. |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| private var bitmap:Bitmap; |
| |
| /** |
| * @private |
| */ |
| private var _focusObject:SkinnableComponent; |
| |
| /** |
| * Object to draw focus around. If null, uses focusManager.getFocus(); |
| * |
| * @langversion 3.0 |
| * @playerversion Flash 10 |
| * @playerversion AIR 1.5 |
| * @productversion Flex 4 |
| */ |
| public function get focusObject():SkinnableComponent |
| { |
| return _focusObject; |
| } |
| |
| public function set focusObject(value:SkinnableComponent):void |
| { |
| _focusObject = value; |
| |
| // Add an "updateComplete" listener to the skin so we can redraw |
| // whenever the skin is drawn. |
| if (_focusObject.skin) |
| _focusObject.skin.addEventListener("updateComplete", |
| skin_updateCompleteHandler, false, 0, true); |
| } |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Overridden methods |
| // |
| //-------------------------------------------------------------------------- |
| |
| override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void |
| { |
| // Early exit if we don't have a focus manager |
| if (!focusManager) |
| return; |
| |
| // Grab a bitmap of the focused object |
| if (!focusObject) |
| focusObject = focusManager.getFocus() as SkinnableComponent; |
| |
| var bitmapData:BitmapData = new BitmapData( |
| focusObject.width + (FOCUS_THICKNESS * 2), |
| focusObject.height + (FOCUS_THICKNESS * 2), true, 0); |
| var m:Matrix = new Matrix(); |
| |
| // If the focus object already has a focus skin, make sure it is hidden. |
| if (focusObject.mx_internal::focusObj) |
| focusObject.mx_internal::focusObj.visible = false; |
| |
| // Temporary solution for focus drawing on CheckBox and RadioButton components. |
| // Hide the label before drawing the focus. |
| // TODO: Figure out a better solution. |
| var hidLabelElement:Boolean = false; |
| if ((weakIsCheck(focusObject, "spark.components::CheckBox") || |
| weakIsCheck(focusObject, "spark.components::RadioButton")) |
| && Object(focusObject).labelDisplay) |
| { |
| Object(focusObject).labelDisplay.displayObject.visible = false; |
| hidLabelElement = true; |
| } |
| |
| m.tx = FOCUS_THICKNESS; |
| m.ty = FOCUS_THICKNESS; |
| bitmapData.draw(focusObject as IBitmapDrawable, m); |
| |
| // Show the focus skin, if needed. |
| if (focusObject.mx_internal::focusObj) |
| focusObject.mx_internal::focusObj.visible = true; |
| |
| // Show the label, if needed. |
| if (hidLabelElement) |
| Object(focusObject).labelDisplay.displayObject.visible = true; |
| |
| // Special case for Scroller - fill the entire rect. |
| // TODO: Figure out a better solution. |
| if (weakIsCheck(focusObject, "spark.components::Scroller")) |
| { |
| rect.x = rect.y = FOCUS_THICKNESS; |
| rect.width = focusObject.width; |
| rect.height = focusObject.height; |
| bitmapData.fillRect(rect, 0xFFFFFFFF); |
| } |
| |
| // Transform the color to remove the transparency. The GlowFilter has the "knockout" property |
| // set to true, which removes this image from the final display, leaving only the outer glow. |
| rect.x = rect.y = FOCUS_THICKNESS; |
| rect.width = focusObject.width; |
| rect.height = focusObject.height; |
| bitmapData.colorTransform(rect, colorTransform); |
| |
| // Apply the glow filter |
| rect.x = rect.y = 0; |
| rect.width = bitmapData.width; |
| rect.height = bitmapData.height; |
| // If the focusObject has an errorString, use "errorColor" instead of "focusColor" |
| if (focusObject.errorString != null && focusObject.errorString != "") |
| { |
| glowFilter.color = focusObject.getStyle("errorColor"); |
| } |
| else |
| { |
| glowFilter.color = focusObject.getStyle("focusColor"); |
| } |
| bitmapData.applyFilter(bitmapData, rect, filterPt, glowFilter); |
| |
| if (!bitmap) |
| { |
| bitmap = new Bitmap(); |
| addChild(bitmap); |
| bitmap.x = bitmap.y = -FOCUS_THICKNESS; |
| } |
| |
| bitmap.bitmapData = bitmapData; |
| } |
| |
| private static var classDefCache:Object = {}; |
| |
| /** |
| * @private |
| */ |
| private function weakIsCheck(obj:Object, className:String):Boolean |
| { |
| if (!(className in classDefCache)) |
| { |
| var classObj:Class = Class(systemManager.getDefinitionByName(className)); |
| |
| classDefCache[className] = classObj; |
| } |
| |
| if (!classDefCache[className]) |
| return false; |
| |
| return obj is classDefCache[className]; |
| } |
| |
| private function skin_updateCompleteHandler(event:Event):void |
| { |
| // We need to redraw whenever the focus object skin redraws. |
| invalidateDisplayList(); |
| } |
| } |
| } |