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A FancyButton object ISA Button object

The FancyButton class extends the Button class. Therefore, an object of the FancyButton class is also a Button object, possessing all of the characteristics of a Button . (See the earlier section titled The ISA relationship .) One of the characteristics of a Button object is the ability to have its appearance changed through the use of skinning.

Different ways to create skins

There are several different ways to create skins for ActionScript objects, including the use of images to create graphical skins . According to About Skinning ,

"When using graphical skins, you must embed the image file for the skin in your application. To specify your skin, you can use the setStyle() method,set it inline, or use Cascading Style Sheets (CSS)"

Embedding image files

There is more than one way to embed an image file in your application and I won't attempt to explain the details. (I suggest that you go to Google and search for ActionScript embed metadata tag for more information.)

The embedding syntax

The syntax that you see in Listing 5 "Imports JPEG, GIF, PNG, SVG, and SWF files at compile time."

The syntax also makes those images accessible by way of the variables that are declared immediately following each Embed tag. Therefore, the images from each of the eight image files imported in Listing 5 can bereferenced later using the eight variables declared in Listing 5.

Constructor for the FancyButton class

The constructor for the FancyButton class is shown in Listing 6.

Constructor for the fancybutton class.

public function FancyButton(){//constructor this.setStyle("upSkin", frogUp);this.setStyle("overSkin", frogOver); this.setStyle("downSkin", frogDown);this.setStyle("disabledSkin", frogDisabled); }//end constructor

The constructor calls the setStyle method four times in succession to set the four styles described earlier to the frog images imported in Listing 5. This causes the button instantiatedfrom the FancyButton class to exhibit frog skins at startup as shown in Figure 2.

The toggleSkin method

The toggleSkin method is shown in Listing 7.

The toggleskin method.

public function toggleSkin():void{ if(this.getStyle("upSkin") == frogUp){this.setStyle("upSkin", bFlyUp); this.setStyle("overSkin", bFlyOver);this.setStyle("downSkin", bFlyDown); this.setStyle("disabledSkin", bFlyDisabled);}else{ this.setStyle("upSkin", frogUp);this.setStyle("overSkin", frogOver); this.setStyle("downSkin", frogDown);this.setStyle("disabledSkin", frogDisabled); }//end else}//end toggleSkin }//end class}//end package

Called by a click event handler method

This method is called whenever the FancyButton object that was instantiated in Listing 2 fires a click event. This call results from the registration of the event handler method on the button in Listing 3 andthe definition of the event handler method in Listing 4.

Skin toggling algorithm

Listing 7 tests to determine if the button is currently exposing skins based on the frog images. If so, it uses the setStyle method to switch all four skin styles to the butterfly images.

Questions & Answers

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
okay, so you have 6 raised to the power of 2. what is that part of your answer
I don't understand what the A with approx sign and the boxed x mean
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
I'm not sure why it wrote it the other way
I got X =-6
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
oops. ignore that.
so you not have an equal sign anywhere in the original equation?
is it a question of log
Commplementary angles
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what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
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a perfect square v²+2v+_
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algebra 2 Inequalities:If equation 2 = 0 it is an open set?
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or infinite solutions?
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
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if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
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Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
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No. 7x -4y is simplified from 4x + (3y + 3x) -7y
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how do you translate this in Algebraic Expressions
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Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
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. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
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types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
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I'm interested in nanotube
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Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
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how did you get the value of 2000N.What calculations are needed to arrive at it
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Source:  OpenStax, Object-oriented programming (oop) with actionscript. OpenStax CNX. Jun 04, 2010 Download for free at http://cnx.org/content/col11202/1.19
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