Archive for the ‘ Development ’ Category

Ultra-light jQuery calendar

New concept for date selection jquery calendar.

Autor Blog: http://roberto.open-lab.com/2010/04/06/ultra-light-jquery-calendar/
Download page: http://bugsvoice.com/applications/bugsVoice/site/test/calendarPickerDemo.jsp
Download: Ultra-light jQuery calendar

2010
04/29
CATEGORY
jQuery
Comments Off

AS3 Condicional Switch Stament

Imagine we can use switch staments with conditional operators other then strict equality.

This way we can do a code like this:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
var value:int = 2;
switch(value){
    case < 1:
        trace("Value is less than 1");
        break;
    case 2:
        trace("Value definitely equals 2");
        break;
    case >= 3:
        trace("Value is greater than or equal to 3");
        break;
    case > 1 && < 3:
        trace("Value is greater than 3 and less than 5");
        break;
    case !== 5:
        trace("Value definitely doesn't equal 5");
        break;
}

Navigating the web I have find one solution:

1
2
3
4
5
6
7
8
9
10
11
12
var value:int = 2;
switch (true) {
    case value < 1:
        trace("Value is less than 1");
    break;
    case value == 1:
        trace("Value equals 1");
    break;
    case value > 1:
        trace("Value is greater than 1");
    break;
}
2010
04/28
CATEGORY
AS2
AS3
Actionscript
Adobe AIR
Flash
Flex
Tips
Comments Off

Dynamically create instance of Vector class

AS3 don’t let us dynamically create an instance of class Vector with elements of various types, the solution is use getDefinitionByName.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
package
{
    import flash.system.ApplicationDomain;
    import flash.utils.getQualifiedClassName;  

    public class ClassUtils
    {
        static private const  VECTOR_CLASS_NAME : String = getQualifiedClassName( Vector );

        static public function getVectorDefinition(itemDefinition : Class, applicationDomain : ApplicationDomain = null) : Class
        {
            if(!applicationDomain) applicationDomain = ApplicationDomain.currentDomain;
            return applicationDomain.getDefinition( VECTOR_CLASS_NAME + '.<' + getQualifiedClassName( itemDefinition ) + '>' ) as Class;
        }      
        static public function createCustomVector(itemDefinition : Class, length : uint = 0, fixed : Boolean = false, applicationDomain : ApplicationDomain = null) : Vector.<*>
        {
            var definition : Class = getVectorDefinition( itemDefinition, applicationDomain );
            return new definition( length, fixed );
        }      
    }
}

To get definition of Vector class with specified item type:

1
2
3
4
var itemType:Class = Sprite;
var definition:Class = ClassUtils.getVectorDefinition(itemType);
trace(definition); // [class Vector.<flash.display::Sprite>]
trace(getQualifiedClassName(definition)); // __AS3__.vec::Vector.<flash.display::Sprite>

To create Vector class instance with specified item type:

1
2
3
var itemType:Class = Sprite;
var vector:Vector.<*> = ClassUtils.createCustomVector(itemType);
trace(getQualifiedClassName(vector)); // __AS3__.vec::Vector.<flash.display::Sprite>
2010
04/08
CATEGORY
AS3
Adobe AIR
Flash
Flex
Tips
Comments Off