ActionScript 3.0 Design Patterns.pdf - VideoTutorials-bg.com

Example 4-48. Deal.as
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Creating the document and setting the stage
Once you’ve saved the Deal.as file, you’ll need to do a little work on a Flash document
file. The following steps will guide you.
1. Open a new Flash document and save it as AutoDealer.fla in the same folder as
the .as files.
2. In the Document class window, type in Deal, and resave the file.
3. Using Figure 4-8 as a guide, use Static text to add the header “2 Guys From Connecticut
Hybrid Cars.” Beneath the header, at horizontal position 150, type in
Select Car, and on the same line at horizontal position 250, type in Select
Options.
4. Open the Components and Library panels and drag a copy of the radio button
and the checkbox to the Library.
5. Select Insert ➝ Symbol in the menu bar, and select Button as Type. In the Name
window, type in Button (which is the default name), and click the Import for
ActionScript checkbox. Click OK to enter the Button Symbol editor indicated by
the special four-frame Timeline.
6. In the Button Symbol editor, add a layer, and, selecting the top layer, use the
Rectangle Tool to draw a rectangle with colors to suit your tastes with 8-point
rounded corners located at x=0, y=0. Size it to W=43, H=13. Add keyframes to
all the frames in the top layer. Select the object in the Over frame and swap
(reverse) the stroke and fill colors.
7. Add keyframes to the first three frames in the lower layer. In the Up frame, using
a Static text and narrow sans serif 10-point font type, type “Calculate” centered
below the button. In the Over frame, do the same thing, but type in Total Cost.
Leave the Down frame empty.
8. Check to make sure your Library shows the following: CheckBox, CheckBox-
Skins, Component Assets, Button, RadioButton, RadioButtonSkins. If it does,
you should be all set.
The next step is to test the application. All the buttons and the text field are automatically
placed on the stage. Figure 4-8 shows what you can expect to see if everything
is working as expected.
174 | Chapter 4: Decorator Pattern