Drawing graphics primitives

Detailed Description

Defines

#define draw_line(a, b, c, d, e, f) vector_draw_line(a,b,c,d,e,f)

Functions

int get_point (int x, int y)

void draw_hline (int x, int y, int len, FGPixel ink, unsigned ppop)

void fgl::draw_box (int x, int y, int w, int h, FGPixel ink, unsigned ppop)

void fgl::fill_box (int x, int y, int w, int h, FGPixel ink, unsigned ppop)

void fgl::draw_point (int x, int y, FGPixel color, unsigned ppop)

int draw_line (int x, int y, int x1, int y1, FGPixel color, unsigned ppop)

int __fastcall drawto_line (int x, int y, FGPixel ink, unsigned ppop)

void __fastcall draw_pattern_line (int x1, int y1, int x2, int y2, FGPattern *p, unsigned ppop)

void __fastcall drawto_pattern_line (int x2, int y2, FGPattern *p, unsigned ppop)

void __fastcall draw_pattern_box (int x, int y, int a, int b, FGPattern *pat, unsigned ppop)

void __fastcall fgl::draw_spline (FGPoint points[4], FGPixel ink, unsigned ppop)

void calc_spline (FGPoint points[], int npts, FGPoint output[])

void __fastcall moveto (int x, int y)

unsigned int __fastcall fgl::areasize (int w, int h)

void __fastcall fgl::_set_default_palette (void)

void __fastcall fgl::_set_fgl_palette (void)

unsigned int __fastcall fgl::get_palette (unsigned int i)

void _palette (unsigned col, unsigned rgb)

void __fastcall CreatePaletteEntry (int rc, int gc, int bc, int idx)

int __fastcall fgl::text_out (int x, int y, char *txt, FGPixel ink, FGPixel paper, unsigned ppop, int f)

void __fastcall fill_convex (const FGPointArray *poly, FGPixel ink, unsigned ppop)

void __fastcall draw_convex (const FGPointArray *poly, FGPixel ink, unsigned ppop)

void __fastcall fgl::get_block (int x, int y, int w, int h, FGPixel *p)

void __fastcall fgl::put_block (int x, int y, int w, int h, FGPixel *p, unsigned ppop)

void __fastcall fgl::set_clip_rect (int w, int h, int x, int y)

void __fastcall fgl::fill_ellipse (int x, int y, int rx, int ry, FGPixel ink, unsigned ppop)

void __fastcall fgl::draw_ellipse (int x, int y, int rx, int ry, FGPixel ink, unsigned ppop)

void __fastcall fgl::draw_arc (int x, int y, double ang1, double ang2, int r, FGPixel ink, unsigned ppop)

void __fastcall fgl::draw_circle (int xs, int ys, int r, FGPixel ink, unsigned ppop)

void __fastcall fgl::fill_circle (int xs, int ys, int r, FGPixel ink, unsigned ppop)

void fgl::RamToVideo (FGPixel *Image, int x, int y, int xm, int ym, int w, int h, int cx_max, int cy_max, int opcia, unsigned ppop)

void fgl::VideoToRam (FGPixel *Image, int x, int y, int xm, int ym, int w, int h, int cx_max, int cy_max)

void fgl::RamToRam (int x, int y, int step_src, int ymax, int xdst, int ydst, int step_dst, int ymaxdst, int w, int h, FGPixel *from, FGPixel *to, unsigned alpha, unsigned ppop)

int fgl::gprintf (FGPixel ink, FGPixel paper, int x, int y, const char *format,...)

Function Documentation

void __fastcall fgl::_set_default_palette ( void )

set startup palette

void __fastcall fgl::_set_fgl_palette ( void )

refresh current palette

unsigned int __fastcall fgl::areasize ( int x,

int y

)

return size of buffer for block

void __fastcall fgl::draw_arc ( int x,

int y,

double ang1,

double ang2,

int r,

FGPixel ink,

unsigned ppop

)

Helper function for the arc function. Calculates the points in an arc of radius r around point x, y, going anticlockwise from fixed point binary angle ang1 to ang2, and calls the specified routine for each one. The output proc will be passed first a copy of the bmp parameter, then the x, y point, then a copy of the d parameter (so putpixel() can be used as the callback).
Examples:
regress.cpp.

void fgl::draw_box ( int x,

int y,

int w,

int h,

FGPixel ink,

unsigned ppop

)

draw box directly on the screen

Examples:
regress.cpp.

void __fastcall fgl::draw_circle ( int x,

int y,

int r,

FGPixel ink,

unsigned ppop

)

draw circle to the screen

Examples:
regress.cpp.

void __fastcall fgl::draw_ellipse ( int x,

int y,

int rx,

int ry,

FGPixel ink,

unsigned ppop

)

do_ellipse: Helper function for the ellipse drawing routines. Calculates the points in an ellipse of radius rx and ry around point x, y, and calls the specified routine for each one. The output proc will be passed first a copy of the bmp parameter, then the x, y point, then a copy of the d parameter (so putpixel() can be used as the callback).
Examples:
regress.cpp.

void fgl::draw_point ( int x,

int y,

FGPixel color,

unsigned ppop

)

Draws point directly on the screen.
Examples:
regress.cpp.

void __fastcall fgl::draw_spline ( FGPoint points[4],

FGPixel ink,

unsigned ppop

)

Draws a bezier spline using the four control points specified in the points array.
Examples:
regress.cpp.

void fgl::fill_box ( int x,

int y,

int w,

int h,

FGPixel ink,

unsigned ppop

)

fill box directly on the screen

Examples:
fgcolor.cpp, and regress.cpp.

void __fastcall fgl::fill_circle ( int xs,

int ys,

int r,

FGPixel ink,

unsigned ppop

)

fill circle directly on the screen

Examples:
regress.cpp.

void __fastcall fgl::fill_ellipse ( int x,

int y,

int rx,

int ry,

FGPixel ink,

unsigned ppop

)

ellipse fill: Draws a filled ellipse.
Examples:
double.cpp, and regress.cpp.

void __fastcall fgl::get_block ( int x,

int y,

int a,

int b,

FGPixel * p

)

get block from VIDEORAM to RAM

unsigned int __fastcall fgl::get_palette ( unsigned int i )

get color from palette

Examples:
rad_prj.cpp.

int fgl::gprintf ( FGPixel ink,

FGPixel paper,

int x,

int y,

const char * format,

...

)

A traditional printf to the screen + position.

Examples:
connect.cpp, events.cpp, and newapi.cpp.

void __fastcall fgl::put_block ( int x,

int y,

int a,

int b,

FGPixel * p,

unsigned ppop

)

put block from RAM to VIDEORAMRAM with current draw mode

Examples:
rad_prj.cpp.

void fgl::RamToRam ( int x,

int y,

int xmax,

int ymax,

int xdst,

int ydst,

int xmaxdst,

int ymaxdst,

int w,

int h,

FGPixel * from,

FGPixel * to,

unsigned alpha,

unsigned ppop

)

this is a very important procedure - its must be very fast put buffer from RAM to RAM with redraw mode The rectangles must be clipped !!!

void fgl::RamToVideo ( FGPixel * Image,

int x,

int y,

int xm,

int ym,

int w,

int h,

int cx_max,

int cy_max,

int opcia,

unsigned ppop

)

this is very important procedure - its must be fast put buffer from RAM to VRAM with redraw mode

void __fastcall fgl::set_clip_rect ( int w,

int h,

int x,

int y

)

set clipping for screen (no window!)

int __fastcall fgl::text_out ( int x,

int y,

char * txt,

FGPixel ink,

FGPixel paper,

unsigned ppop,

int f = FONT0816

)

draw text directly on the SCREEN

Parameters:

x x position from top left corner

y y position from top left corner

txt 7bit ascii text string (null terminated)

ink foreground color

paper background color

ppop the ROP

f font taht will be used

Returns:
the next X position behind the printed string

void fgl::VideoToRam ( FGPixel * Image,

int x,

int y,

int xm,

int ym,

int w,

int h,

int cx_max,

int cy_max

)

this very important procedure - its must be fast put buffer from VIDEORAM to RAM with redraw mode

Generated on Wed Feb 9 11:31:37 2005 for OpenGUI by

1.4.0


Defines
#define	draw_line(a, b, c, d, e, f) vector_draw_line(a,b,c,d,e,f)
Functions
int	get_point (int x, int y)
void	draw_hline (int x, int y, int len, FGPixel ink, unsigned ppop)
void	fgl::draw_box (int x, int y, int w, int h, FGPixel ink, unsigned ppop)
void	fgl::fill_box (int x, int y, int w, int h, FGPixel ink, unsigned ppop)
void	fgl::draw_point (int x, int y, FGPixel color, unsigned ppop)
int	draw_line (int x, int y, int x1, int y1, FGPixel color, unsigned ppop)
int __fastcall	drawto_line (int x, int y, FGPixel ink, unsigned ppop)
void __fastcall	draw_pattern_line (int x1, int y1, int x2, int y2, FGPattern *p, unsigned ppop)
void __fastcall	drawto_pattern_line (int x2, int y2, FGPattern *p, unsigned ppop)
void __fastcall	draw_pattern_box (int x, int y, int a, int b, FGPattern *pat, unsigned ppop)
void __fastcall	fgl::draw_spline (FGPoint points[4], FGPixel ink, unsigned ppop)
void	calc_spline (FGPoint points[], int npts, FGPoint output[])
void __fastcall	moveto (int x, int y)
unsigned int __fastcall	fgl::areasize (int w, int h)
void __fastcall	fgl::_set_default_palette (void)
void __fastcall	fgl::_set_fgl_palette (void)
unsigned int __fastcall	fgl::get_palette (unsigned int i)
void	_palette (unsigned col, unsigned rgb)
void __fastcall	CreatePaletteEntry (int rc, int gc, int bc, int idx)
int __fastcall	fgl::text_out (int x, int y, char *txt, FGPixel ink, FGPixel paper, unsigned ppop, int f)
void __fastcall	fill_convex (const FGPointArray *poly, FGPixel ink, unsigned ppop)
void __fastcall	draw_convex (const FGPointArray *poly, FGPixel ink, unsigned ppop)
void __fastcall	fgl::get_block (int x, int y, int w, int h, FGPixel *p)
void __fastcall	fgl::put_block (int x, int y, int w, int h, FGPixel *p, unsigned ppop)
void __fastcall	fgl::set_clip_rect (int w, int h, int x, int y)
void __fastcall	fgl::fill_ellipse (int x, int y, int rx, int ry, FGPixel ink, unsigned ppop)
void __fastcall	fgl::draw_ellipse (int x, int y, int rx, int ry, FGPixel ink, unsigned ppop)
void __fastcall	fgl::draw_arc (int x, int y, double ang1, double ang2, int r, FGPixel ink, unsigned ppop)
void __fastcall	fgl::draw_circle (int xs, int ys, int r, FGPixel ink, unsigned ppop)
void __fastcall	fgl::fill_circle (int xs, int ys, int r, FGPixel ink, unsigned ppop)
void	fgl::RamToVideo (FGPixel *Image, int x, int y, int xm, int ym, int w, int h, int cx_max, int cy_max, int opcia, unsigned ppop)
void	fgl::VideoToRam (FGPixel *Image, int x, int y, int xm, int ym, int w, int h, int cx_max, int cy_max)
void	fgl::RamToRam (int x, int y, int step_src, int ymax, int xdst, int ydst, int step_dst, int ymaxdst, int w, int h, FGPixel from, FGPixel to, unsigned alpha, unsigned ppop)
int	fgl::gprintf (FGPixel ink, FGPixel paper, int x, int y, const char *format,...)