Class FPS

To set values for this property, use the following string values:

If autoSize is set to TextFieldAutoSize.NONE (the default) no resizing occurs.

If autoSize is set to TextFieldAutoSize.LEFT, the text is treated as left-justified text, meaning that the left margin of the text field remains fixed and any resizing of a single line of the text field is on the right margin. If the text includes a line break(for example, "\n" or "\r"), the bottom is also resized to fit the next line of text. If wordWrap is also set to true, only the bottom of the text field is resized and the right side remains fixed.

If autoSize is set to TextFieldAutoSize.RIGHT, the text is treated as right-justified text, meaning that the right margin of the text field remains fixed and any resizing of a single line of the text field is on the left margin. If the text includes a line break(for example, "\n" or "\r"), the bottom is also resized to fit the next line of text. If wordWrap is also set to true, only the bottom of the text field is resized and the left side remains fixed.

If autoSize is set to TextFieldAutoSize.CENTER, the text is treated as center-justified text, meaning that any resizing of a single line of the text field is equally distributed to both the right and left margins. If the text includes a line break(for example, "\n" or "\r"), the bottom is also resized to fit the next line of text. If wordWrap is also set to true, only the bottom of the text field is resized and the left and right sides remain fixed.

throws

ArgumentError The autoSize specified is not a member of flash.text.TextFieldAutoSize.

default

false

The blendMode property affects each pixel of the display object. Each pixel is composed of three constituent colors(red, green, and blue), and each constituent color has a value between 0x00 and 0xFF. Flash Player or Adobe AIR compares each constituent color of one pixel in the movie clip with the corresponding color of the pixel in the background. For example, if blendMode is set to BlendMode.LIGHTEN, Flash Player or Adobe AIR compares the red value of the display object with the red value of the background, and uses the lighter of the two as the value for the red component of the displayed color.

The following table describes the blendMode settings. The BlendMode class defines string values you can use. The illustrations in the table show blendMode values applied to a circular display object(2) superimposed on another display object(1).

default

false

All the text between the lines indicated by scrollV and bottomScrollV is currently visible in the text field.

If cacheAsBitmapMatrix is non-null and supported, the object is drawn to the off-screen bitmap using that matrix and the stretched and/or rotated results of that rendering are used to draw the object to the main display.

No internal bitmap is created unless the cacheAsBitmap property is set to true.

After you set the cacheAsBitmap property to true, the rendering does not change, however the display object performs pixel snapping automatically. The animation speed can be significantly faster depending on the complexity of the vector content.

The cacheAsBitmap property is automatically set to true whenever you apply a filter to a display object(when its filter array is not empty), and if a display object has a filter applied to it, cacheAsBitmap is reported as true for that display object, even if you set the property to false. If you clear all filters for a display object, the cacheAsBitmap setting changes to what it was last set to.

A display object does not use a bitmap even if the cacheAsBitmap property is set to true and instead renders from vector data in the following cases:

• The bitmap is too large. In AIR 1.5 and Flash Player 10, the maximum size for a bitmap image is 8,191 pixels in width or height, and the total number of pixels cannot exceed 16,777,215 pixels.(So, if a bitmap image is 8,191 pixels wide, it can only be 2,048 pixels high.) In Flash Player 9 and earlier, the limitation is is 2880 pixels in height and 2,880 pixels in width.
• The bitmap fails to allocate(out of memory error).

The cacheAsBitmap property is best used with movie clips that have mostly static content and that do not scale and rotate frequently. With such movie clips, cacheAsBitmap can lead to performance increases when the movie clip is translated(when its x and y position is changed).

Selection span indexes are zero-based(for example, the first position is 0, the second position is 1, and so on).

Note: When selecting characters to be replaced with setSelection() and replaceSelectedText(), the defaultTextFormat will be applied only if the text has been selected up to and including the last character. Here is an example:

var my_txt:TextField new TextField();
my_txt.text = "Flash Macintosh version"; var my_fmt:TextFormat = new
TextFormat(); my_fmt.color = 0xFF0000; my_txt.defaultTextFormat = my_fmt;
my_txt.setSelection(6,15); // partial text selected - defaultTextFormat
not applied my_txt.setSelection(6,23); // text selected to end -
defaultTextFormat applied my_txt.replaceSelectedText("Windows version");

When you access the defaultTextFormat property, the returned TextFormat object has all of its properties defined. No property is null.

Note: You can't set this property if a style sheet is applied to the text field.

throws

Error This method cannot be used on a text field with a style sheet.

default

false

No event is dispatched by setting this property. You must use the addEventListener() method to add an event listener for the doubleClick event.

If you set the embedFonts property to true for a text field, you must specify a font for that text by using the font property of a TextFormat object applied to the text field. If the specified font is not embedded in the SWF file, the text is not displayed.

default

false

Filters can be applied in Flash Professional at design time, or at run time by using ActionScript code. To apply a filter by using ActionScript, you must make a temporary copy of the entire filters array, modify the temporary array, then assign the value of the temporary array back to the filters array. You cannot directly add a new filter object to the filters array.

To add a filter by using ActionScript, perform the following steps (assume that the target display object is named myDisplayObject):

1. Create a new filter object by using the constructor method of your chosen filter class.
2. Assign the value of the myDisplayObject.filters array to a temporary array, such as one named myFilters.
3. Add the new filter object to the myFilters temporary array.
4. Assign the value of the temporary array to the myDisplayObject.filters array.

If the filters array is undefined, you do not need to use a temporary array. Instead, you can directly assign an array literal that contains one or more filter objects that you create. The first example in the Examples section adds a drop shadow filter by using code that handles both defined and undefined filters arrays.

To modify an existing filter object, you must use the technique of modifying a copy of the filters array:

1. Assign the value of the filters array to a temporary array, such as one named myFilters.
2. Modify the property by using the temporary array, myFilters. For example, to set the quality property of the first filter in the array, you could use the following code: myFilters[0].quality = 1;
3. Assign the value of the temporary array to the filters array.

At load time, if a display object has an associated filter, it is marked to cache itself as a transparent bitmap. From this point forward, as long as the display object has a valid filter list, the player caches the display object as a bitmap. This source bitmap is used as a source image for the filter effects. Each display object usually has two bitmaps: one with the original unfiltered source display object and another for the final image after filtering. The final image is used when rendering. As long as the display object does not change, the final image does not need updating.

The openfl.filters package includes classes for filters. For example, to create a DropShadow filter, you would write:

throws

ArgumentError When filters includes a ShaderFilter and the shader output type is not compatible with this operation(the shader must specify a pixel4 output).

throws

ArgumentError When filters includes a ShaderFilter and the shader doesn't specify any image input or the first input is not an image4 input.

throws

ArgumentError When filters includes a ShaderFilter and the shader specifies an image input that isn't provided.

throws

ArgumentError When filters includes a ShaderFilter, a ByteArray or Vector. instance as a shader input, and the width and height properties aren't specified for the ShaderInput object, or the specified values don't match the amount of data in the input data. See the ShaderInput.input property for more information.

The type of grid fitting used determines whether Flash Player forces strong horizontal and vertical lines to fit to a pixel or subpixel grid, or not at all.

For the flash.text.GridFitType property, you can use the following string values:

default

pixel

Except for TextField and Video objects, a display object with no content(such as an empty sprite) has a height of 0, even if you try to set height to a different value.

Flash Player supports the following HTML tags:

Flash Player and AIR also support explicit character codes, such as &(ASCII ampersand) and €(Unicode € symbol).

A large SWF file can monitor its download by calling this.root.loaderInfo.addEventListener(Event.COMPLETE, func).

To be able to scale a mask object, it must be on the display list. To be able to drag a mask Sprite object(by calling its startDrag() method), it must be on the display list. To call the startDrag() method for a mask sprite based on a mouseDown event being dispatched by the sprite, set the sprite's buttonMode property to true.

When display objects are cached by setting the cacheAsBitmap property to true an the cacheAsBitmapMatrix property to a Matrix object, both the mask and the display object being masked must be part of the same cached bitmap. Thus, if the display object is cached, then the mask must be a child of the display object. If an ancestor of the display object on the display list is cached, then the mask must be a child of that ancestor or one of its descendents. If more than one ancestor of the masked object is cached, then the mask must be a descendent of the cached container closest to the masked object in the display list.

Note: A single mask object cannot be used to mask more than one calling display object. When the mask is assigned to a second display object, it is removed as the mask of the first object, and that object's mask property becomes null.

default

0

No event is dispatched by setting this property. You must use the addEventListener() method to create interactive functionality.

Note: For a DisplayObject that has been rotated, the returned x coordinate will reflect the non-rotated object.

Note: For a DisplayObject that has been rotated, the returned y coordinate will reflect the non-rotated object.

default

false

throws

IllegalOperationError If you are attempting to set this property on an object that was placed on the timeline in the Flash authoring tool.

By default, the value is false and focusing an InteractiveObject instance does not raise a soft keyboard. If the needsSoftKeyboard property is set to true, the runtime raises a soft keyboard when the InteractiveObject instance is ready to accept user input. An InteractiveObject instance is ready to accept user input after a programmatic call to set the Stage focus property or a user interaction, such as a "tap." If the client system has a hardware keyboard available or does not support virtual keyboards, then the soft keyboard is not raised.

The InteractiveObject instance dispatches softKeyboardActivating, softKeyboardActivate, and softKeyboardDeactivate events when the soft keyboard raises and lowers.

Note: This property is not supported in AIR applications on iOS.

If set to a number value, the surface is opaque(not transparent) with the RGB background color that the number specifies. If set to null(the default value), the display object has a transparent background.

The opaqueBackground property is intended mainly for use with the cacheAsBitmap property, for rendering optimization. For display objects in which the cacheAsBitmap property is set to true, setting opaqueBackground can improve rendering performance.

The opaque background region is not matched when calling the hitTestPoint() method with the shapeFlag parameter set to true.

The opaque background region does not respond to mouse events.

You can use parent to move up multiple levels in the display list as in the following:

throws

SecurityError The parent display object belongs to a security sandbox to which you do not have access. You can avoid this situation by having the parent movie call the Security.allowDomain() method.

If the string begins with a caret(^) character, all characters are initially accepted and succeeding characters in the string are excluded from the set of accepted characters. If the string does not begin with a caret(^) character, no characters are initially accepted and succeeding characters in the string are included in the set of accepted characters.

The following example allows only uppercase characters, spaces, and numbers to be entered into a text field: my_txt.restrict = "A-Z 0-9";

The following example includes all characters, but excludes lowercase letters: my_txt.restrict = "^a-z";

You can use a backslash to enter a ^ or - verbatim. The accepted backslash sequences are -, \^ or \. The backslash must be an actual character in the string, so when specified in ActionScript, a double backslash must be used. For example, the following code includes only the dash(-) and caret(^): my_txt.restrict = "\\-\\^";

The ^ can be used anywhere in the string to toggle between including characters and excluding characters. The following code includes only uppercase letters, but excludes the uppercase letter Q: my_txt.restrict = "A-Z^Q";

You can use the \u escape sequence to construct restrict strings. The following code includes only the characters from ASCII 32(space) to ASCII 126(tilde). my_txt.restrict = "\u0020-\u007E";

default

null

For example, if you create a new Sprite object by calling the Sprite() constructor method, its root property is null until you add it to the display list(or to a display object container that is off the display list but that is a child of the top-most display object in a SWF file).

For a loaded SWF file, even though the Loader object used to load the file may not be on the display list, the top-most display object in the SWF file has its root property set to itself. The Loader object does not have its root property set until it is added as a child of a display object for which the root property is set.

When you define the scale9Grid property, the display object is divided into a grid with nine regions based on the scale9Grid rectangle, which defines the center region of the grid. The eight other regions of the grid are the following areas:

• The upper-left corner outside of the rectangle
• The area above the rectangle
• The upper-right corner outside of the rectangle
• The area to the left of the rectangle
• The area to the right of the rectangle
• The lower-left corner outside of the rectangle
• The area below the rectangle
• The lower-right corner outside of the rectangle

You can think of the eight regions outside of the center(defined by the rectangle) as being like a picture frame that has special rules applied to it when scaled.

When the scale9Grid property is set and a display object is scaled, all text and gradients are scaled normally; however, for other types of objects the following rules apply:

• Content in the center region is scaled normally.
• Content in the corners is not scaled.
• Content in the top and bottom regions is scaled horizontally only. Content in the left and right regions is scaled vertically only.
• All fills(including bitmaps, video, and gradients) are stretched to fit their shapes.

If a display object is rotated, all subsequent scaling is normal(and the scale9Grid property is ignored).

For example, consider the following display object and a rectangle that is applied as the display object's scale9Grid:

A common use for setting scale9Grid is to set up a display object to be used as a component, in which edge regions retain the same width when the component is scaled.

throws

ArgumentError If you pass an invalid argument to the method.

Scaling the local coordinate system changes the x and y property values, which are defined in whole pixels.

Scaling the local coordinate system changes the x and y property values, which are defined in whole pixels.

The units of horizontal scrolling are pixels, whereas the units of vertical scrolling are lines. Horizontal scrolling is measured in pixels because most fonts you typically use are proportionally spaced; that is, the characters can have different widths. Flash Player performs vertical scrolling by line because users usually want to see a complete line of text rather than a partial line. Even if a line uses multiple fonts, the height of the line adjusts to fit the largest font in use.

Note: The scrollH property is zero-based, not 1-based like the scrollV vertical scrolling property.

The properties of the scrollRect Rectangle object use the display object's coordinate space and are scaled just like the overall display object. The corner bounds of the cropped window on the scrolling display object are the origin of the display object(0,0) and the point defined by the width and height of the rectangle. They are not centered around the origin, but use the origin to define the upper-left corner of the area. A scrolled display object always scrolls in whole pixel increments.

You can scroll an object left and right by setting the x property of the scrollRect Rectangle object. You can scroll an object up and down by setting the y property of the scrollRect Rectangle object. If the display object is rotated 90° and you scroll it left and right, the display object actually scrolls up and down.

The units of vertical scrolling are lines, whereas the units of horizontal scrolling are pixels. If the first line displayed is the first line in the text field, scrollV is set to 1(not 0). Horizontal scrolling is measured in pixels because most fonts are proportionally spaced; that is, the characters can have different widths. Flash performs vertical scrolling by line because users usually want to see a complete line of text rather than a partial line. Even if there are multiple fonts on a line, the height of the line adjusts to fit the largest font in use.

If selectable is set to false, the text in the text field does not respond to selection commands from the mouse or keyboard, and the text cannot be copied with the Copy command. If selectable is set to true, the text in the text field can be selected with the mouse or keyboard, and the text can be copied with the Copy command. You can select text this way even if the text field is a dynamic text field instead of an input text field.

default

true

default

0

If a display object is not added to the display list, its stage property is set to null.

To get the text in HTML form, use the htmlText property.

default

0(0x000000)

Each of the transform object's properties is itself an object. This concept is important because the only way to set new values for the matrix or colorTransform objects is to create a new object and copy that object into the transform.matrix or transform.colorTransform property.

For example, to increase the tx value of a display object's matrix, you must make a copy of the entire matrix object, then copy the new object into the matrix property of the transform object: var myMatrix:Matrix = myDisplayObject.transform.matrix; myMatrix.tx += 10; myDisplayObject.transform.matrix = myMatrix;

You cannot directly set the tx property. The following code has no effect on myDisplayObject: myDisplayObject.transform.matrix.tx += 10;

You can also copy an entire transform object and assign it to another display object's transform property. For example, the following code copies the entire transform object from myOldDisplayObj to myNewDisplayObj: myNewDisplayObj.transform = myOldDisplayObj.transform;

The resulting display object, myNewDisplayObj, now has the same values for its matrix, color transform, and pixel bounds as the old display object, myOldDisplayObj.

Note that AIR for TV devices use hardware acceleration, if it is available, for color transforms.

default

dynamic

throws

ArgumentError The type specified is not a member of flash.text.TextFieldType.

Except for TextField and Video objects, a display object with no content(such as an empty sprite) has a width of 0, even if you try to set width to a different value.