Actionscript 3 如何在点下获取顶部鼠标启用对象?
我的flash应用程序使用外部触摸输入。我通过as3()的TUIO库接收来自触摸面板的信号 我有时会遇到问题,然后TuioManager错误地检测到必须接收触摸输入的对象Actionscript 3 如何在点下获取顶部鼠标启用对象?,actionscript-3,flash,apache-flex,Actionscript 3,Flash,Apache Flex,我的flash应用程序使用外部触摸输入。我通过as3()的TUIO库接收来自触摸面板的信号 我有时会遇到问题,然后TuioManager错误地检测到必须接收触摸输入的对象 private function getTopDisplayObjectUnderPoint(point:Point):DisplayObject { var targets:Array = stage.getObjectsUnderPoint(point); var item:DisplayObject =
private function getTopDisplayObjectUnderPoint(point:Point):DisplayObject {
var targets:Array = stage.getObjectsUnderPoint(point);
var item:DisplayObject = (targets.length > 0) ? targets[targets.length - 1] : stage;
if (this.touchTargetDiscoveryMode == TOUCH_TARGET_DISCOVERY_MOUSE_ENABLED) {
while (targets.length > 0) {
item = targets.pop() as DisplayObject;
//ignore debug cursor/object/blob and send object under debug cursor/object/blob
if ((item is ITuioDebugCursor || item is ITuioDebugBlob || item is ITuioDebugObject || item is ITuioDebugTextSprite) && targets.length > 0) {
continue;
}
if (item.parent != null && !(item is InteractiveObject)) item = item.parent;
if (item is InteractiveObject) {
if ((item as InteractiveObject).mouseEnabled) return item;
}
}
item = stage;
}
else if (this.touchTargetDiscoveryMode == TOUCH_TARGET_DISCOVERY_IGNORELIST) {
while (targets.length > 0) {
item = targets.pop();
//ignore debug cursor/object/blob and send object under debug cursor/object/blob
if ((item is ITuioDebugCursor || item is ITuioDebugBlob || item is ITuioDebugObject || item is ITuioDebugTextSprite) && targets.length > 0) {
continue;
}
if (!bubbleListCheck(item)) return item;
}
item = stage;
}
return item;
}
我使用了this.touchTargetDiscoveryMode==TOUCH\u TARGET\u DISCOVERY\u MOUSE\u ENABLED
此函数不使用mouseChildren
属性
例如,我在fxg图形中使用世界地图,我想禁用它的所有子项:worldMap.mouseChildren=false代码>
但如果我使用系统鼠标输入,它就可以工作,但对于TUIO则不行。函数getTopDisplayObjectUnderPoint
的结果将是子MovieClip的结果之一。在跟踪中,我看到的层次结构如下:
worldMap
MovieClip
....
MovieClip
是的,我可以为worldMap
的子级递归设置所有属性mouseEnabled=false
。它只能解决这个问题,但在更全局的情况下不能解决对象选择错误的问题
我试图修改此函数,并编写了两个助手函数:
private function isMouseChildrenEnabled(obj:DisplayObject):Boolean {
if (obj.parent == null) {
return true;
}
return obj.parent.mouseChildren && isMouseChildrenEnabled(obj.parent);
}
private function findMouseEnabledObject(obj:InteractiveObject):InteractiveObject
{
if (obj.mouseEnabled && isMouseChildrenEnabled(obj))
return obj;
return obj.parent ? findMouseEnabledObject(obj.parent) : null;
}
private function getTopDisplayObjectUnderPoint(point:Point):DisplayObject {
var targets:Array = stage.getObjectsUnderPoint(point);
var item:DisplayObject = (targets.length > 0) ? targets[targets.length - 1] : stage;
if(this.touchTargetDiscoveryMode == TOUCH_TARGET_DISCOVERY_MOUSE_ENABLED){
while(targets.length > 0) {
item = targets.pop() as DisplayObject;
//ignore debug cursor/object/blob and send object under debug cursor/object/blob
if((item is ITuioDebugCursor || item is ITuioDebugBlob || item is ITuioDebugObject || item is ITuioDebugTextSprite) && targets.length > 0){
continue;
}
if (item.parent != null && !(item is InteractiveObject)) item = item.parent;
if (item is InteractiveObject) {
var io:InteractiveObject = findMouseEnabledObject(item as InteractiveObject);
if (io) return io;
}
}
item = stage;
} else if (this.touchTargetDiscoveryMode == TOUCH_TARGET_DISCOVERY_IGNORELIST) {
while(targets.length > 0) {
item = targets.pop();
//ignore debug cursor/object/blob and send object under debug cursor/object/blob
if((item is ITuioDebugCursor || item is ITuioDebugBlob || item is ITuioDebugObject || item is ITuioDebugTextSprite) && targets.length > 0){
continue;
}
if (!bubbleListCheck(item)) return item;
}
item = stage;
}
return item;
}
但经过新的修复后,我们有了新的bug:(
如果我使用flex拖放,我会看到错误。在拖放过程中,flex会显示被拖动的图像,tuio会检测到错误的拖放目标。在tracestage.getObjectsUnderPoint()中,我看到如下内容:
[n] - image (mouseEnabled=true, mouseChildren=true)
parent: embed_swf_drag_cursor... (mouseEnabled=false, mouseChildren=false)
parent: application_systemManager... (mouseEnabled=true, mouseChildren=true)
parent: stage
[n-1] - borderContainer (mouseEnabled=true, mouseChildren=true) - it is my drop target
结果,我将systemManager作为目标,但我需要BorderContainer
如何正确查找用户输入的已启用对象
p.S.在Linux和Windows flash播放器上测试
更新13.11
我尝试编写函数,该函数在点下启用对象:
private function getTopEnabledObject(object:DisplayObjectContainer, hitPoint:Point):InteractiveObject
{
if (!object.mouseChildren)
return null;
var child:DisplayObject;
for (var i:int = object.numChildren - 1; i >= 0; i--)
{
child = object.getChildAt(i);
if (child.visible && child is InteractiveObject && child.hitTestPoint(hitPoint.x, hitPoint.y, true))
{
if (child is DisplayObjectContainer)
{
var target:InteractiveObject = getTopEnabledObject(child as DisplayObjectContainer, hitPoint);
if (target)
return target;
}
if ((child as InteractiveObject).mouseEnabled)
return child as InteractiveObject;
}
}
return null;
}
它的运行速度很慢,有5-10次。在短时间内多次触摸之后,我就崩溃了。您的操作方式看起来是正确的。我唯一要纠正的是,在isMouseChildrenEnabled中,您可以在第一次鼠标时停止Children=false并返回false
如果Flex添加被拖动对象的图像,您将始终将其作为顶级目标。您必须为其编写一个特例。它只解决了拖放的一个问题。我认为这将是关于event.target和event.currentTarget的另一个问题。我们在这一步中没有事件。我们尝试在此处查找事件目标。