Canvas

Implements the frontend of a drawable canvas, primarily for GUI elements. Used to avoid using individual bitmaps for each elements. Colors are mostly limited to 256 by the ubyte type. However certain window types will enable more.

public

interface Canvas {

void drawLine(Point from, Point to, ubyte color);

void drawLinePattern(Point from, Point to, ubyte[] pattern);

void drawBox(Box target, ubyte color);

void drawBoxPattern(Box target, ubyte[] pattern);

void drawFilledBox(Box target, ubyte color);

void bitBLT(Point target, ABitmap source);

void bitBLT(Point target, ABitmap source, Box slice);

void bitBLTPattern(Box target, ABitmap pattern);

void xorBitBLT(Box target, ABitmap pattern);

void xorBitBLT(Box target, ubyte color);

void fill(Point target, ubyte color, ubyte background);

void drawTextSL(Box target, Text text, Point offset);

void drawTextML(Box target, Text text, Point offset);

void clearArea(Box target);

}

Members

Functions

bitBLT void bitBLT(Point target, ABitmap source): Pastes a bitmap to the given point using blitter, which threats color #0 as transparency.
bitBLT void bitBLT(Point target, ABitmap source, Box slice): Pastes a slice of a bitmap to the given point using blitter, which threats color #0 as transparency.
bitBLTPattern void bitBLTPattern(Box target, ABitmap pattern): Pastes a repeated bitmap pattern over the specified area.
clearArea void clearArea(Box target): Clears the area within the target
drawBox void drawBox(Box target, ubyte color): Draws an empty rectangle.
drawBoxPattern void drawBoxPattern(Box target, ubyte[] pattern): Draws an empty rectangle with line patterns.
drawFilledBox void drawFilledBox(Box target, ubyte color): Draws a filled rectangle with a specified color.
drawLine void drawLine(Point from, Point to, ubyte color): Draws a line.
drawLinePattern void drawLinePattern(Point from, Point to, ubyte[] pattern): Draws a line pattern.
drawTextML void drawTextML(Box target, Text text, Point offset): Draws a multi line text within the given prelimiter.
drawTextSL void drawTextSL(Box target, Text text, Point offset): Draws a single line text within the given prelimiter.
fill void fill(Point target, ubyte color, ubyte background): Fills an area with the specified color.
xorBitBLT void xorBitBLT(Box target, ABitmap pattern): XOR blits a repeated bitmap pattern over the specified area.
xorBitBLT void xorBitBLT(Box target, ubyte color): XOR blits a color index over a specified area.

Canvas

Members

Functions

Meta

Source