class Psychlops::Image

Usage

Typical usage:

Image noise;
noise.set(100, 100);
for(int y=0; y < noise.getHeight(); y++) {
	for(int x=0; x< noise.getWidth(); x++) {
		noise.pix(x, y, col.set(random()));
	}
}
noise.centering().draw();

Functions

Initialization

By decralation

By function

Image& set(int width, int height)
set a Image instance with designated size.
Image& load(string file_name)
load a Image file. PNG and JPEG are supported.
Image& from(Canvas source, Rectangle source_area)
load a Image file. PNG and JPEG are supported. CURRENT LIMITATIONS: (1) area size must be 2^n where n as integer. (2) gamma values must be set to 1.

Translation

Image& centering()
place the rectangle at center of the window.
Image& centering(Point new_center)
Image& centering(x, y)
place the rectangle centered at (x,y) or (p.x, p.y). Typically, the function is used with getCenter() as rect.centering(image.getCenter()).
Image& shift(delta_x, delta_y)
move the rectangle by (h, v).

Pixel manipulation

Image& pix(int x, int y, Color col)
set the Color of designated pixel. With this function, alpha-blending is applied on drawing to the Image.
Image& pix_raw(int x, int y, Color col)
set the Color of designated pixel. With this function, color values are directly copied to the image. Alpha-blending will not be applied.
Image& alpha(int x, int y, alpha)
set the alpha value of designated pixel.
Color getPix(int x, int y)
get the Color of designated pixel.

Drawing

void draw()
draw the Image on the Canvas

Getting parameters