Intersects the current clip with the specified rectangle.

Parameters:

	x	- the x coordinate of the rectangle to intersect the clip with
	y	- the y coordinate of the rectangle to intersect the clip with
	width	- the width of the rectangle to intersect the clip with
	height	- the height of the rectangle to intersect the clip with

See also:

setClip

Copies the contents of a rectangular area (x_src, y_src, width, height) to a destination area, whose anchor point identified by anchor is located at (x_dest, y_dest).

The effect must be that the destination area contains an exact copy of the contents of the source area immediately prior to the invocation of this method. This result must occur even if the source and destination areas overlap.

The points (x_src, y_src) and (x_dest, y_dest) are both specified relative to the coordinate system of the Graphics object. It is illegal for the source region to extend beyond the bounds of the graphic object. This requires that:
x_src + tx >= 0
y_src + ty >= 0
x_src + tx + width <= width of Graphics object's destination
y_src + ty + height <= height of Graphics object's destination

where tx and ty represent the X and Y coordinates of the translated origin of this graphics object, as returned by getTranslateX() and getTranslateY(), respectively.

However, it is legal for the destination area to extend beyond the bounds of the Graphics object. Pixels outside of the bounds of the Graphics object will not be drawn.

The copyArea method is allowed on all Graphics objects except those whose destination is the actual display device. This restriction is necessary because allowing a copyArea method on the display would adversely impact certain techniques for implementing double-buffering.

Like other graphics operations, the copyArea method uses the Source Over Destination rule for combining pixels. However, since it is defined only for mutable images, which can contain only fully opaque pixels, this is effectively the same as pixel replacement.

Parameters:

	x_src	- the x coordinate of upper left corner of source area
	y_src	- the y coordinate of upper left corner of source area
	width	- the width of the source area
	height	- the height of the source area
	x_dest	- the x coordinate of the destination anchor point
	y_dest	- the y coordinate of the destination anchor point
	anchor	- the anchor point for positioning the region within the destination image

Draws the outline of a circular or elliptical arc covering the specified rectangle, using the current color and stroke style.

The resulting arc begins at startAngle and extends for arcAngle degrees, using the current color. Angles are interpreted such that 0 degrees is at the 3 o'clock position. A positive value indicates a counter-clockwise rotation while a negative value indicates a clockwise rotation.

The center of the arc is the center of the rectangle whose origin is (x, y) and whose size is specified by the width and height arguments.

The resulting arc covers an area width + 1 pixels wide by height + 1 pixels tall. If either width or height is less than zero, nothing is drawn.

The angles are specified relative to the non-square extents of the bounding rectangle such that 45 degrees always falls on the line from the center of the ellipse to the upper right corner of the bounding rectangle. As a result, if the bounding rectangle is noticeably longer in one axis than the other, the angles to the start and end of the arc segment will be skewed farther along the longer axis of the bounds.

Parameters:

	x	- the x coordinate of the upper-left corner of the arc to be drawn
	y	- the y coordinate of the upper-left corner of the arc to be drawn
	width	- the width of the arc to be drawn
	height	- the height of the arc to be drawn
	startAngle	- the beginning angle
	arcAngle	- the angular extent of the arc, relative to the start angle

Draws the specified character using the current font and color.

Parameters:

	character	- the character to be drawn
	x	- the x coordinate of the anchor point
	y	- the y coordinate of the anchor point
	anchor	- the anchor point for positioning the text; see anchor points

Draws the specified characters using the current font and color.

The offset and length parameters must specify a valid range of characters within the character array data. The offset parameter must be within the range [0..(data.length)], inclusive. The length parameter must be a non-negative integer such that (offset + length) <= data.length.

Parameters:

	data	- the array of characters to be drawn
	offset	- the start offset in the data
	length	- the number of characters to be drawn
	x	- the x coordinate of the anchor point
	y	- the y coordinate of the anchor point
	anchor	- the anchor point for positioning the text; see anchor points

Draws the specified image by using the anchor point.

The image can be drawn in different positions relative to the anchor point by passing the appropriate position constants. See anchor points.

If the source image contains transparent pixels, the corresponding pixels in the destination image must be left untouched. If the source image contains partially transparent pixels, a compositing operation must be performed with the destination pixels, leaving all pixels of the destination image fully opaque.

If img is the same as the destination of this Graphics object, the result is undefined. For copying areas within an Image, copyArea should be used instead.

Parameters:

	img	- the specified image to be drawn
	x	- the x coordinate of the anchor point
	y	- the y coordinate of the anchor point
	anchor	- the anchor point for positioning the image

Draws a line between the coordinates (x1,y1) and (x2,y2) using the current color and stroke style.

Parameters:

	x1	- the x coordinate of the start of the line
	y1	- the y coordinate of the start of the line
	x2	- the x coordinate of the end of the line
	y2	- the y coordinate of the end of the line

Same as drawPartialRGB but it's useful when you draw in a back buffer that is bigger than the screen.

Parameters:

	g	- graphic context, all rendering operation will occurs on this context.
	screenWidth	- the width of the backbuffer
	screenHeight	- the height of the backbuffer
	rgbData	- an array of ARGB values in the format 0xAARRGGBB
	scanlength	- the relative array offset between the corresponding pixels in consecutive rows in the rgbData array
	srcX	- the horizontal location of the source to be rendered
	srcY	- the vertical location of the source to be rendered
	x	- the horizontal location of the destination
	y	- the vertical location of the destination
	width	- the width of the region to be rendered
	height	- the height of the region to be rendered
	processAlpha	- true if rgbData has an alpha channel, false if all pixels are fully opaque

Same as drawRGB but it draws safely (without drawing outside the screen).

Parameters:

	g	- graphic context, all rendering operation will occurs on this context.
	rgbData	- an array of ARGB values in the format 0xAARRGGBB
	scanlength	- the relative array offset between the corresponding pixels in consecutive rows in the rgbData array
	srcX	- the horizontal location of the source to be rendered
	srcY	- the vertical location of the source to be rendered
	x	- the horizontal location of the destination
	y	- the vertical location of the destination
	width	- the width of the region to be rendered
	height	- the height of the region to be rendered
	processAlpha	- true if rgbData has an alpha channel, false if all pixels are fully opaque

Draws the outline of the specified rectangle using the current color and stroke style.

The resulting rectangle will cover an area (width + 1) pixels wide by (height + 1) pixels tall. If either width or height is less than zero, nothing is drawn.

Parameters:

	x	- the x coordinate of the rectangle to be drawn
	y	- the y coordinate of the rectangle to be drawn
	width	- the width of the rectangle to be drawn
	height	- the height of the rectangle to be drawn

Copies a region of the specified source image to a location within the destination, possibly transforming (rotating and reflecting) the image data using the chosen transform function.

The destination, if it is an image, must not be the same image as the source image. If it is, an exception is thrown. This restriction is present in order to avoid ill-defined behaviors that might occur if overlapped, transformed copies were permitted.

The transform function used must be one of the following, as defined in the Sprite class:
Sprite.TRANS_NONE - causes the specified image region to be copied unchanged
Sprite.TRANS_ROT90 - causes the specified image region to be rotated clockwise by 90 degrees.
Sprite.TRANS_ROT180 - causes the specified image region to be rotated clockwise by 180 degrees.
Sprite.TRANS_ROT270 - causes the specified image region to be rotated clockwise by 270 degrees.
Sprite.TRANS_MIRROR - causes the specified image region to be reflected about its vertical center.
Sprite.TRANS_MIRROR_ROT90 - causes the specified image region to be reflected about its vertical center and then rotated clockwise by 90 degrees.
Sprite.TRANS_MIRROR_ROT180 - causes the specified image region to be reflected about its vertical center and then rotated clockwise by 180 degrees.
Sprite.TRANS_MIRROR_ROT270 - causes the specified image region to be reflected about its vertical center and then rotated clockwise by 270 degrees.

If the source region contains transparent pixels, the corresponding pixels in the destination region must be left untouched. If the source region contains partially transparent pixels, a compositing operation must be performed with the destination pixels, leaving all pixels of the destination region fully opaque.

The (x_src, y_src) coordinates are relative to the upper left corner of the source image. The x_src, y_src, width, and height parameters specify a rectangular region of the source image. It is illegal for this region to extend beyond the bounds of the source image. This requires that:
x_src >= 0
y_src >= 0
x_src + width <= source width
y_src + height <= source height

The (x_dest, y_dest) coordinates are relative to the coordinate system of this Graphics object. It is legal for the destination area to extend beyond the bounds of the Graphics object. Pixels outside of the bounds of the Graphics object will not be drawn.

The transform is applied to the image data from the region of the source image, and the result is rendered with its anchor point positioned at location (x_dest, y_dest) in the destination.

Parameters:

	src	- the source image to copy from
	x_src	- the x coordinate of the upper left corner of the region within the source image to copy
	y_src	- the y coordinate of the upper left corner of the region within the source image to copy
	width	- the width of the region to copy
	height	- the height of the region to copy
	transform	- the desired transformation for the selected region being copied
	x_dest	- the x coordinate of the anchor point in the destination drawing area
	y_dest	- the y coordinate of the anchor point in the destination drawing area
	anchor	- the anchor point for positioning the region within the destination image

Renders a series of device-independent RGB+transparency values in a specified region.

The values are stored in rgbData in a format with 24 bits of RGB and an eight-bit alpha value (0xAARRGGBB), with the first value stored at the specified offset. The scanlength specifies the relative offset within the array between the corresponding pixels of consecutive rows. Any value for scanlength is acceptable (even negative values) provided that all resulting references are within the bounds of the rgbData array. The ARGB data is rasterized horizontally from left to right within each row. The ARGB values are rendered in the region specified by x, y, width and height, and the operation is subject to the current clip region and translation for this Graphics object.

Consider P(a,b) to be the value of the pixel located at column a and row b of the Image, where rows and columns are numbered downward from the top starting at zero, and columns are numbered rightward from the left starting at zero. This operation can then be defined as:
P(a, b) = rgbData[offset + (a - x) + (b - y) * scanlength]
for
x <= a < x + width
y <= b < y + height

This capability is provided in the Graphics class so that it can be used to render both to the screen and to offscreen Image objects. The ability to retrieve ARGB values is provided by the Image.getRGB(int[], int, int, int, int, int, int) method.

If processAlpha is true, the high-order byte of the ARGB format specifies opacity; that is, 0x00RRGGBB specifies a fully transparent pixel and 0xFFRRGGBB specifies a fully opaque pixel. Intermediate alpha values specify semitransparency. If the implementation does not support alpha blending for image rendering operations, it must remove any semitransparency from the source data prior to performing any rendering. (See Alpha Processing for further discussion.) If processAlpha is false, the alpha values are ignored and all pixels must be treated as completely opaque.

The mapping from ARGB values to the device-dependent pixels is platform-specific and may require significant computation.

Parameters:

	rgbData	- an array of ARGB values in the format 0xAARRGGBB
	offset	- the array index of the first ARGB value
	scanlength	- the relative array offset between the corresponding pixels in consecutive rows in the rgbData array
	x	- the horizontal location of the region to be rendered
	y	- the vertical location of the region to be rendered
	width	- the width of the region to be rendered
	height	- the height of the region to be rendered
	processAlpha	- true if rgbData has an alpha channel, false if all pixels are fully opaque

Draws the outline of the specified rounded corner rectangle using the current color and stroke style.

The resulting rectangle will cover an area (width + 1) pixels wide by (height + 1) pixels tall. If either width or height is less than zero, nothing is drawn.

Parameters:

	x	- the x coordinate of the rectangle to be drawn
	y	- the y coordinate of the rectangle to be drawn
	width	- the width of the rectangle to be drawn
	height	- the height of the rectangle to be drawn
	arcWidth	- the horizontal diameter of the arc at the four corners
	arcHeight	- the vertical diameter of the arc at the four corners

Draws the specified String using the current font and color.

The x,y position is the position of the anchor point

Parameters:

	str	- the String to be drawn
	x	- the x coordinate of the anchor point
	y	- the y coordinate of the anchor point
	anchor	- the anchor point for positioning the text

Draws the specified String using the current font and color.

The x,y position is the position of the anchor point. See anchor points.
The offset and len parameters must specify a valid range of characters within the string str. The offset parameter must be within the range [0..(str.length())], inclusive. The len parameter must be a non-negative integer such that (offset + len) <= str.length().

Parameters:

	str	- the String to be drawn
	offset	- zero-based index of first character in the substring
	len	- length of the substring
	x	- the x coordinate of the anchor point
	y	- the y coordinate of the anchor point
	anchor	- the anchor point for positioning the text

Fills a circular or elliptical arc covering the specified rectangle.

The resulting arc begins at startAngle and extends for arcAngle degrees. Angles are interpreted such that 0 degrees is at the 3 o'clock position. A positive value indicates a counter-clockwise rotation while a negative value indicates a clockwise rotation.

The center of the arc is the center of the rectangle whose origin is (x, y) and whose size is specified by the width and height arguments.

If either width or height is zero or less, nothing is drawn.
The filled region consists of the "pie wedge" region bounded by the arc segment as if drawn by drawArc(), the radius extending from the center to this arc at startAngle degrees, and radius extending from the center to this arc at startAngle + arcAngle degrees.

The angles are specified relative to the non-square extents of the bounding rectangle such that 45 degrees always falls on the line from the center of the ellipse to the upper right corner of the bounding rectangle. As a result, if the bounding rectangle is noticeably longer in one axis than the other, the angles to the start and end of the arc segment will be skewed farther along the longer axis of the bounds.

Parameters:

	x	- the x coordinate of the upper-left corner of the arc to be filled.
	y	- the y coordinate of the upper-left corner of the arc to be filled.
	width	- the width of the arc to be filled
	height	- the height of the arc to be filled
	startAngle	- the beginning angle.
	arcAngle	- the angular extent of the arc, relative to the start angle.

Fills the specified rectangle with the current color.

If either width or height is zero or less, nothing is drawn.

Parameters:

	x	- the x coordinate of the rectangle to be filled
	y	- the y coordinate of the rectangle to be filled
	width	- the width of the rectangle to be filled
	height	- the height of the rectangle to be filled

Fills the specified rounded corner rectangle with the current color.

If either width or height is zero or less, nothing is drawn.

Parameters:

	x	- the x coordinate of the rectangle to be filled
	y	- the y coordinate of the rectangle to be filled
	width	- the width of the rectangle to be filled
	height	- the height of the rectangle to be filled
	arcWidth	- the horizontal diameter of the arc at the four corners
	arcHeight	- the vertical diameter of the arc at the four corners

Fills the specified triangle will the current color.

The lines connecting each pair of points are included in the filled triangle.

Parameters:

	x1	- the x coordinate of the first vertex of the triangle
	y1	- the y coordinate of the first vertex of the triangle
	x2	- the x coordinate of the second vertex of the triangle
	y2	- the y coordinate of the second vertex of the triangle
	x3	- the x coordinate of the third vertex of the triangle
	y3	- the y coordinate of the third vertex of the triangle

call the garbage collector to free memory

Note:

gc is not guaranteed to be called immediately in order to bufferise gc call

Gets the blue component of the current color.

Returns:

integer value in range 0-255

Gets the height of the current clipping area.

Returns:

height of the current clipping area.

Gets the width of the current clipping area.

Returns:

width of the current clipping area.

Gets the X offset of the current clipping area, relative to the coordinate system origin of this graphics context.

Separating the getClip operation into two methods returning integers is more performance and memory efficient than one getClip() call returning an object.

Returns:

X offset of the current clipping area

Gets the Y offset of the current clipping area, relative to the coordinate system origin of this graphics context.

Separating the getClip operation into two methods returning integers is more performance and memory efficient than one getClip() call returning an object.

Returns:

Y offset of the current clipping area

Gets the current color.

Returns:

an integer in form 0x00RRGGBB

Gets the color that will be displayed if the specified color is requested.

This method enables the developer to check the manner in which RGB values are mapped to the set of distinct colors that the device can actually display. For example, with a monochrome device, this method will return either 0xFFFFFF (white) or 0x000000 (black) depending on the brightness of the specified color.

Parameters:

color

- the desired color (in 0x00RRGGBB format, the high-order byte is ignored)

Returns:

the corresponding color that will be displayed on the device's screen (in 0x00RRGGBB format)

Gets the current font.

Returns:

current font

get time for this frame (real time when this frame started)

Returns:

time

Gets the current grayscale value of the color being used for rendering operations.

Gets the current grayscale value of the color being used for rendering operations. If the color was set by setGrayScale(), that value is simply returned. If the color was set by one of the methods that allows setting of the red, green, and blue components, the value returned is computed from the RGB color components (possibly in a device-specific fashion) that best approximates the brightness of that color.

Returns:

integer value in range 0-255

Gets the green component of the current color.

Returns:

integer value in range 0-255

get real time at the moment the fucntion is called

Returns:

real time

Gets the red component of the current color.

Returns:

integer value in range 0-255

get screen height, (if screen orientation changes, it will return the new screen height automatically

Returns:

screen height

get screen width, (if screen orientation changes, it will return the new screen width automatically

Returns:

screen width

Gets the stroke style used for drawing operations.

Returns:

stroke style, SOLID or DOTTED

Gets the X coordinate of the translated origin of this graphics context.

Returns:

X of current origin

Gets the Y coordinate of the translated origin of this graphics context.

Returns:

Y of current origin

Performs platformRequest.

This method wraps calls to platformRequest, incorporating some workarounds for usual platformRequest problems

Parameters:

url

the url to send to the browser

Returns:

if the platformRequest was successful

Sets the current clip to the rectangle specified by the given coordinates.

Rendering operations have no effect outside of the clipping area.

Parameters:

	x	- the x coordinate of the new clip rectangle
	y	- the y coordinate of the new clip rectangle
	width	- the width of the new clip rectangle
	height	- the height of the new clip rectangle

Sets the current color to the specified RGB values.

All subsequent rendering operations will use this specified color.

Parameters:

	red	- the red component of the color being set in range 0-255
	green	- the green component of the color being set in range 0-255
	blue	- the blue component of the color being set in range 0-255

Sets the current color to the specified RGB values.

All subsequent rendering operations will use this specified color. The RGB value passed in is interpreted with the least significant eight bits giving the blue component, the next eight more significant bits giving the green component, and the next eight more significant bits giving the red component. That is to say, the color component is specified in the form of 0x00RRGGBB. The high order byte of this value is ignored.

Parameters:

RGB

- the color being set

set current graphics context -.

all rendering operation will occurs on this context

Parameters:

img

- get the current graphic context from this image, or null to reset

Note:

gaphic context is always reseted at beginning of each frame

set current graphics context -.

all rendering operation will occurs on this context

Parameters:

graphics

- graphic context, all rendering operation will occurs on this context, or null to reset

Note:

gaphic context is always reseted at beginning of each frame

Sets the font for all subsequent text rendering operations.

If font is null, it is equivalent to setFont(Font.getDefaultFont()).

Parameters:

font

- the specified font

Sets the current grayscale to be used for all subsequent rendering operations.

For monochrome displays, the behavior is clear. For color displays, this sets the color for all subsequent drawing operations to be a gray color equivalent to the value passed in. The value must be in the range 0-255.

Parameters:

value

- the desired grayscale value

Sets the stroke style used for drawing lines, arcs, rectangles, and rounded rectangles.

This does not affect fill, text, and image operations.

Parameters:

style

- can be SOLID or DOTTED

Translates the origin of the graphics context to the point (x, y) in the current coordinate system.

Translates the origin of the graphics context to the point (x, y) in the current coordinate system. All coordinates used in subsequent rendering operations on this graphics context will be relative to this new origin.

The effect of calls to translate() are cumulative. For example, calling translate(1, 2) and then translate(3, 4) results in a translation of (4, 6).

The application can set an absolute origin (ax, ay) using the following technique:
g.translate(ax - g.getTranslateX(), ay - g.getTranslateY())

Parameters:

	x	- the x coordinate of the new translation origin
	y	- the y coordinate of the new translation origin

Make the phone vibrate or flash the back light is the phone has this functionnality.

Parameters:

duration

- duration of the vibration (or backlight flash)

Constant for positioning the anchor point of text and images below the text or image Constant for positioning the anchor point of text and images below the text or image.

Constant for the DOTTED stroke style.

Constant for centering text and images horizontally around the anchor point.

Constant for positioning the anchor point of text and images to the left of the text or image.

Constant for positioning the anchor point of text and images to the right of the text or image.

Constant for the SOLID stroke style.

Constant for positioning the anchor point of text and images above the text or image.

causes the specified image region to be reflected about its vertical center.

causes the specified image region to be reflected about its vertical center and then rotated clockwise by 180 degrees.

causes the specified image region to be reflected about its vertical center and then rotated clockwise by 270 degrees.

causes the specified image region to be reflected about its vertical center and then rotated clockwise by 90 degrees.

No transform is applied.

causes the specified image region to be rotated clockwise by 180 degrees.

causes the specified image region to be rotated clockwise by 270 degrees.

causes the specified image region to be rotated clockwise by 90 degrees.

Constant for centering text and images images vertically around the anchor point.