//  graph.h
//
//  by John D. de Boer


//  Graphics states

void savegraphics(window *W);
void restoregraphics(window *W);

void transform(window *W, rect Src, rect Dest);

void antialias(window *W, bool Anti);


//  Colour

void pencolour(window *W, const colour *C);
void penindex(window *W, int COLOUR);
void fillcolour(window *W, const colour *C);
void fillindex(window *W, int COLOUR);

void penwidth(window *W, float Width);


//  Paths

void beginpath(window *W);

void move(window *W, float DX, float DY);
void moveto(window *W, float X, float Y);
void movept(window *W, point P);
void line(window *W, float DX, float DY);
void lineto(window *W, float X, float Y);
void linept(window *W, point P);
void line2(window *W, float A, float B, float C, float D);
void line3(window *W, float A, float B, float C, float D, float E, float F);
void line4(window *W, float A, float B, float C, float D, float E, float F, float G, float H);
void line5(window *W, float A, float B, float C, float D, float E, float F, float G, float H, float I, float J);
void addrect(window *W, rect R);
void addcircle(window *W, float X, float Y, float Rad);
void addellipse(window *W, rect R);

void stroke(window *W);
void fill(window *W);
void clip(window *W);

void framerect(window *W, rect R);
void fillrect(window *W, rect R);
void cliprect(window *W, rect R);
void frameroundrect(window *W, rect R, float Radius);
void fillroundrect(window *W, rect R, float Radius);


//  Text

void textfont(window *W, const char *Font, float Size);
void textsize(window *W, float S);

float textwidth(window *W, const char *S);

void text(window *W, const char *S);
void textold(window *W, string S);
void drawtext(window *W, float X, float Y, const char *S);
void drawtextold(window *W, float X, float Y, string S);
void textcentre(window *W, float X, float Y, const char *S);
void textleft(window *W, float X, float Y, const char *S);
void textint(window *W, long N);
void textreal(window *W, float X, int PLACES);
void textfixed(window *W, float X, int LEFT, int RIGHT);
void drawchar(window *W, char C);

void boldtext(window *W, float X, float Y, const char *S, float Size);  //  not sure about where this should be.  Twistory uses it.

void drawgreekletter(window *W, float Size, char C);


//  Images

void drawpicture(window *W, picture P, rect R);
void drawpictureclip(window *W, picture P, rect R, rect Clip);