Use MX. Skins. programmaticskin to implement custom components (reuse of custom components)

MX. Skins. programmaticskin is the base class of the appearance element. They draw themselves through programming.

The following describes the class by implementing a custom tooltip.

Tooltipborderskin.

Package skins
{
Import flash. display. graphics;
Import flash. Geom. Point;
 
Import MX. Skins. programmaticskin;
Import flash. Filters. bitmapfilter;
Import flash. Filters. bitmapfilterquality;
Import flash. Filters. dropshadowfilter;

Public class tooltipborderskin extends programmaticskin
{
Public Function tooltipborderskin ()
{
Super ();
}

Override protected function updatedisplaylist (unscaledwidth: Number,
Unscaledheight: Number): void {
Trace ("W =" + unscaledwidth );
Trace ("H =" + unscaledheight );
VaR G: Graphics = graphics;
G. Clear ();
// G. linestyle (0, 0xff0000 );
G. beginfill (0xff0000, 0.5 );
// G. drawrect (0, 0, unscaledwidth, unscaledheight );
G. drawroundrect (0, 0, unscaledwidth, unscaledheight, 15, 10 );
G. endfill ();
VaR _ w: Number = unscaledwidth;
VaR _ H: Number = unscaledheight;
VaR point1: Point = new point (_ w/3, _ H );
VaR point2: Point = new point (2 * _ w/3, _ H );
VaR point3: Point = new point (0, 2 * _ H );
G. beginfill (0xff0000, 0.5 );
G. moveTo (point1.x, point1.y );
G. lineto (point3.x, point3.y );
G. lineto (point2.x, point2.y );
G. endfill ();

This. Filters = [getdropshadowfilter ()];
}

// Add a shadow
Private function getdropshadowfilter (): bitmapfilter {
VaR color: Number = 0x000000;
VaR angle: Number = 45;
Varalpha: Number = 0.8;
VaR blurx: Number = 8;
VaR blury: Number = 8;
VaR distance: Number = 15;
VaR strength: Number = 0.65;
VaR inner: Boolean = false;
VaR knockout: Boolean = false;
VaR quality: Number = bitmapfilterquality. High;

Return new dropshadowfilter (distance,
Angle,
Color,
Alpha,
Blurx,
Blury,
Strength,
Quality );
}
}
}

 

 

We can call the above method in the following custom style.

<? XML version = "1.0" encoding = "UTF-8"?>
<Mx: Application xmlns: MX = "http://www.adobe.com/2006/mxml" layout = "absolute" creationcomplete = "initapp ()">
 
<Mx: style>

Tooltip
{
Borderstyle: inset;
Color: # ffffff;
Borderskin: classreference ("skins. tooltipborderskin ");
}
</MX: style>
 
<Mx: SCRIPT>
<! [CDATA [
Import MX. Events. tooltipevent;
Import MX. Managers. tooltipmanager;

Private function initapp (): void {
B5.addeventlistener (tooltipevent. tool_tip_show, mov?ltip );
}
Private function movetooltip (Event: tooltipevent): void {
Trace (event );
Event. tooltip. x = b5.x + 5;
Event. tooltip. Y = b5.y-35;
}

]>
</MX: SCRIPT>
<Mx: button id = "B5" width = "30" tooltip = "This is good! "Height =" 20 "x =" 226 "Y =" 167 "/>

</MX: Application>