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d_decx.c
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C/C++ Source or Header
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1992-11-29
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16KB
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615 lines
/*--------------------------------------------------------------*/
/* DecWindows Driver 1.0 , for GLE V3.0 */
/*--------------------------------------------------------------*/
/* NOTE: MUST be run from a DECwindow (vt100 window, or curses) */
/*---------------------------------------------------------------------------*/
#include "all.h"
#include <math.h>
#include "core.h"
#include "mygraph.h"
#include "mydev.h"
extern int gunit;
extern struct gmodel g;
/*---------------------------------------------------------------------------*/
/* XWindows stuff here */
/*-----------------------------------------------*/
#include <decw$include/Xlib.h>
#include <decw$include/Xutil.h>
#define FontName "-ADOBE-NEW CENTURY SCHOOLBOOK-MEDIUM-R-NORMAL--*-140-*-*-P-*"
#define WindowName "CGLE Output"
int maxxsize = 800;
int maxysize = 800;
int window1W;
int window1H;
Display *dpy;
Window window1;
GC gc,gcf;
Screen *screen;
static void doInitialize( );
static int doDefineColor(int n);
static void doCreateWindows( );
static void doCreateGraphicsContext( );
static void doLoadFont( );
static void doExpose( );
static void doWMHints( );
static void doMapWindows( );
static void doHandleEvents( );
static void doButtonPress( );
/***************** doInitialize **************************/
int color_table[9];
static void doInitialize( )
{
int i;
dpy = XOpenDisplay(0);
if (!dpy){
printf("Display not opened!\n");
exit(-1);
}
screen = XDefaultScreenOfDisplay(dpy);
doCreateWindows( );
for (i=0;i<=9; i++) {
color_table[i] = doDefineColor(i);
}
doCreateGraphicsContext( );
doLoadFont( );
doWMHints( );
doMapWindows( );
}
/******* doCreateWindows *********/
static void doCreateWindows( )
{
int window1X = (XWidthOfScreen(screen)-window1W);
int window1Y = 1;
XSetWindowAttributes xswa;
/* Create the window1 window width and height are global variables*/
xswa.event_mask = ExposureMask; /* | ButtonPressMask; */
xswa.background_pixel = doDefineColor(0);
window1 = XCreateWindow(dpy, XRootWindowOfScreen(screen),
window1X, window1Y, window1W, window1H, 0,
XDefaultDepthOfScreen(screen), InputOutput,
XDefaultVisualOfScreen(screen), CWEventMask | CWBackPixel, &xswa);
}
/******** Create the graphics context *********/
static void doCreateGraphicsContext( )
{
XGCValues xgcv;
/* Create graphics context. */
xgcv.background = doDefineColor(0);
xgcv.foreground = doDefineColor(1);
gc = XCreateGC(dpy, window1, GCForeground | GCBackground, &xgcv);
gcf = XCreateGC(dpy, window1, GCForeground | GCBackground, &xgcv);
}
setcolor(i)
{
XGCValues xgcv;
xgcv.foreground = color_table[i];
XChangeGC(dpy, gc, GCForeground , &xgcv);
}
setfillcolor(i)
{
XGCValues xgcv;
xgcv.foreground = color_table[i];
XChangeGC(dpy, gcf, GCForeground , &xgcv);
}
/******* Load the font for text writing ******/
static void doLoadFont( )
{
Font font;
font = XLoadFont(dpy, FontName);
XSetFont(dpy, gc, font);
}
/******* Create color ************************/
static int doDefineColor(int i)
{
int pixel;
char *colors[] = {
"white",
"black",
"red",
"green",
"blue",
"yellow",
"magenta",
"cyan",
"light grey",
"black"
};
XColor exact_color,screen_color;
if ((XDefaultVisualOfScreen(screen))->class == PseudoColor
|| (XDefaultVisualOfScreen(screen))->class == DirectColor)
if (XAllocNamedColor(dpy, XDefaultColormapOfScreen(screen),
colors[i], &screen_color, &exact_color))
return screen_color.pixel;
else
printf("Color not allocated! {%s}\n",colors[i]);
else
switch (i) {
case 1: return XWhitePixelOfScreen(screen); break;
case 2: return XBlackPixelOfScreen(screen); break;
default: return XBlackPixelOfScreen(screen); break;
}
}
/******** do WMHints *************/
static void doWMHints( )
{
XSizeHints xsh;
/* Define the size and name of the window1 window */
xsh.x = (XWidthOfScreen(screen)-window1W);
xsh.y = 1;
xsh.width = window1W;
xsh.height = window1H;
xsh.flags = PPosition | PSize;
XSetNormalHints(dpy, window1, &xsh);
XStoreName(dpy, window1, WindowName);
}
/******** doMapWindows ***********/
static void doMapWindows( )
{
XMapWindow(dpy, window1);
}
/****************** doHandleEvents ***********************/
static wwinit=0;
static void doHandleEvents( )
{
XEvent event;
for ( ; ; ) {
if (XPending(dpy) == 0 && wwinit!=0) return;
XNextEvent(dpy, &event);
switch (event.type) {
case Expose: break;
case ButtonPress: doButtonPress(&event); break;
}
}
}
/***************** doShutdown ***************************/
static void doButtonPress(eventP)
XEvent *eventP;
{
/*
if (eventP->xexpose.window != window1) {
XDrawImageString(dpy, window1, gc, 75, 75, message[state], strlen(message[state]));
return;
}
*/
}
getmaxx()
{
return maxxsize;
}
getmaxy()
{
return maxysize;
}
getmaxcolor()
{
return 9;
}
/*---------------------------------------------------------------------------*/
#define DASHED_LINE 2
#define SOLID_LINE 1
#define pi 3.141592653
#define BLACKANDWHITE 1
#define false 0
#define true (!false)
#define dbg if ((gle_debug & 64)>0)
double savexsize,saveysize;
extern int gle_debug;
int gle_nspeed = 2; /* text mode = slow and fast */
int incap=true;
/*---------------------------------------------------------------------------*/
/* The global variables for the PC screen driver */
/*-----------------------------------------------*/
int i,l,j,ix,iy;
double f;
double xsizecm,ysizecm;
#define sx(v) ( (int) ((v) * d_xscale))
#define sy(v) ( d_maxy - ((int) ((v) * d_yscale)))
#define rx(v) ( (int) ((v) * d_xscale))
#define ry(v) ( d_maxy - ((int) ((v) * d_yscale)))
double d_scale, d_xscale, d_yscale;
int d_graphmode;
int d_fillstyle=1,d_fillcolor;
int d_lstyle,d_lwidth;
int d_maxy;
d_devcmd(char *s)
{}
dxy(double x, double y, int *dx, int *dy)
{
static double fx,fy;
g_dev(x,y,&fx,&fy);
*dx = sx(fx);
*dy = sy(fy);
}
rxy(double x, double y, int *dx, int *dy)
{
static double fx,fy,zx,zy;
g_dev(x,y,&fx,&fy);
g_dev(0.0,0.0,&zx,&zy);
*dx = (int) ( (fx-zx) * d_xscale);
*dy = (int) ( (fy-zy) * d_yscale);
}
/*---------------------------------------------------------------------------*/
d_dfont(char *c)
{
/* only used for the DFONT driver which builds fonts */
}
/*---------------------------------------------------------------------------*/
static char lastline[80];
d_message(char *s)
{
w_message(s);
}
/*---------------------------------------------------------------------------*/
d_source(char *s)
{
s=s;
}
/*---------------------------------------------------------------------------*/
d_get_type(char *t)
{
strcpy(t,"INTERACTIVE, X, DECWINDOWS, XWINDOWS");
}
/*---------------------------------------------------------------------------*/
d_set_path(int onoff)
{}
/*---------------------------------------------------------------------------*/
d_newpath()
{
}
/*---------------------------------------------------------------------------*/
d_open(double width, double height)
{
gle_nspeed = 2; /* text mode = slow and fast */
xsizecm = 16;
ysizecm = 16;
/* Get largest rectangle we can fit on the screen */
d_scale = xsizecm / width;
f = ysizecm / height;
if (f<d_scale) d_scale = f;
d_xscale = d_scale * (getmaxx()) / xsizecm; /* Device Scale X, Device Scale y */
d_yscale = d_scale * (getmaxy()) / ysizecm;
window1W = width*d_xscale;
window1H = height*d_yscale;
d_maxy = window1H;
if (dpy==0 || savexsize != width || saveysize != height) {
if (dpy!=NULL) {
XUnmapWindow(dpy, window1);
XDestroyWindow(dpy, window1);
XCloseDisplay(dpy);
}
doInitialize( ); XSync(dpy,True);
} else {
XRaiseWindow(dpy, window1); XSync(dpy,True);
}
XClearWindow(dpy, window1);
savexsize = width;
saveysize = height;
}
/*---------------------------------------------------------------------------*/
d_tidyup()
{
}
d_close()
{
g_flush();
lastline[0] = 0;
XSync(dpy,True);
fner("Picture completed, press RETURN to continue (Press any key)");
text_inkey();
XLowerWindow(dpy, window1); XSync(dpy,True);
}
/*---------------------------------------------------------------------------*/
d_set_line_cap(int i)
{
i++;
}
/*---------------------------------------------------------------------------*/
d_set_line_join(int i)
{
i++;
}
/*---------------------------------------------------------------------------*/
d_set_line_miterlimit(double d)
{
i++;
}
/*---------------------------------------------------------------------------*/
d_set_line_width(double w)
{
int xa,xb;
XGCValues xgcv;
rxy(w,w,&xa,&xb);
/* if (xa<=2) xa = 0; */
xgcv.line_width = xa;
XChangeGC(dpy, gc, GCLineWidth , &xgcv);
}
/*---------------------------------------------------------------------------*/
d_set_line_styled(double dd)
{}
d_set_line_style(char *s)
{
XGCValues xgcv;
xgcv.line_style = LineDoubleDash;
if (strcmp(s,"")==0) xgcv.line_style = LineSolid;
if (strcmp(s,"1")==0) xgcv.line_style = LineSolid;
XChangeGC(dpy, gc, GCLineStyle , &xgcv);
}
/*---------------------------------------------------------------------------*/
d_fill()
{
}
/*---------------------------------------------------------------------------*/
d_fill_ary(int nwk,double (*wkx)[],double (*wky)[])
{
int i;
/* fprintf(psfile,"%g %g moveto \n",(*wkx)[0],(*wky)[0]);
for (i=1;i<nwk;i++)
fprintf(psfile,"%g %g l \n",(*wkx)[i],(*wky)[i]);
*/
}
d_line_ary(int nwk,double (*wkx)[],double (*wky)[])
{
int i;
dxy( (*wkx)[0], (*wky)[0], &ix, &iy);
/* moveto(ix,iy); */
for (i=1;i<nwk;i++) {
dxy( (*wkx)[i], (*wky)[i], &ix, &iy);
}
}
/*---------------------------------------------------------------------------*/
d_stroke()
{
}
/*---------------------------------------------------------------------------*/
d_clip()
{
}
/*---------------------------------------------------------------------------*/
d_set_matrix(double newmat[3][3])
{
}
/*---------------------------------------------------------------------------*/
d_move(double zx,double zy)
{
}
/*---------------------------------------------------------------------------*/
d_reverse() /* reverse the order of stuff in the current path */
{
}
/*---------------------------------------------------------------------------*/
d_closepath()
{
g_line(g.closex,g.closey);
}
/*---------------------------------------------------------------------------*/
d_line(double zx,double zy)
{
static int ux,uy;
dxy(g.curx,g.cury,&ux,&uy);
dxy(zx,zy,&ix,&iy);
XDrawLine(dpy,window1,gc,ux,uy,ix,iy);
}
/*---------------------------------------------------------------------------*/
d_clear()
{
}
/*---------------------------------------------------------------------------*/
d_flush()
{
}
/*---------------------------------------------------------------------------*/
int polar_xy(double r, double angle, double *dx, double *dy);
int xy_polar(double dx,double dy,double *radius,double *angle);
d_arcto(dbl x1,dbl y1,dbl x2,dbl y2,dbl rrr)
{
double x0,y0,r1,a1,r2,a2,r3,a3,a4,r5,ssx,ssy,ex,ey;
double bx1,by1,bx2,by2,dist,neg;
g_get_xy(&x0,&y0);
xy_polar(x1-x0,y1-y0,&r1,&a1);
xy_polar(x2-x1,y2-y1,&r2,&a2);
neg = 1;
a4 = (180-a2+a1);
a3 = a2 + (a4/2);
if ((a4/2)>90 && (a4/2)<180 ) neg = -1;
if ((a4/2)<0 && (a4/2)>-90 ) neg = -1;
r3 = neg*rrr/(tan((pi/180)*a4/2));
dbg gprint("rrr %g a4/2 %g t=%g a2=%g a1=%g r1=%g r2=%g r3=%g \n",rrr,a4/2,tan(a4/2),a2,a1,r1,r2,r3);
polar_xy(-r3,a1,&ssx,&ssy); ssx += x1; ssy += y1;
polar_xy(r3,a2,&ex,&ey); ex += x1; ey += y1;
g_line(ssx,ssy);
dist = sqrt(pow(ex-ssx,2) + pow(ey-ssy,2));
polar_xy(r1+ dist/2.5-r3,a1,&bx1,&by1); bx1 += x0; by1 += y0;
polar_xy(-r2+ -dist/2.5+r3,a2,&bx2,&by2); bx2 += x2; by2 += y2;
g_bezier(bx1,by1,bx2,by2,ex,ey);
g_line(x2,y2);
}
/*---------------------------------------------------------------------------*/
d_arc(dbl r,dbl t1,dbl t2,dbl cx,dbl cy)
{
static int ixr,iyr,icx,icy,a1,a2;
double ux,uy,z;
dxy(cx,cy,&icx,&icy);
rxy(r,r,&ixr,&iyr);
if (t1>t2) {z = t1; t1 = t2; t2 = z;}
a1 = t1*64; a2 = t2*64 - a1;
XDrawArc(dpy,window1,gc,icx-ixr,icy-iyr,ixr*2,iyr*2,a1,a2);
}
/*---------------------------------------------------------------------------*/
d_narc(dbl r,dbl t1,dbl t2,dbl cx,dbl cy)
{
static int ixr,iyr,icx,icy,a1,a2;
double ux,uy,z;
dxy(cx,cy,&icx,&icy);
rxy(r,r,&ixr,&iyr);
if (t1>t2) {z = t1; t1 = t2; t2 = z;}
a1 = t1*64; a2 = t2*64 - a1;
XDrawArc(dpy,window1,gc,icx-ixr,icy-iyr,ixr*2,iyr*2,a1,a2);
}
/*---------------------------------------------------------------------------*/
d_box_fill(dbl x1, dbl y1, dbl x2, dbl y2)
{
static int ix1,iy1,ix2,iy2;
static int ii;
dxy(x1,y1,&ix1,&iy1);
dxy(x2,y2,&ix2,&iy2);
if (ix1>ix2) { ii = ix1; ix1 = ix2; ix2 = ii; }
if (iy1>iy2) { ii = iy1; iy1 = iy2; iy2 = ii; }
XFillRectangle(dpy,window1,gcf,ix1,iy1,ix2-ix1,iy2-iy1);
}
d_box_stroke(dbl x1, dbl y1, dbl x2, dbl y2)
{
g_move(x1,y1);
g_line(x2,y1);
g_line(x2,y2);
g_line(x1,y2);
g_line(x1,y1);
}
/*---------------------------------------------------------------------------*/
d_circle_stroke(double zr)
{
static int ixr,iyr;
int ux,uy;
rxy(zr,zr,&ixr,&iyr);
ixr =(fabs(ixr)+fabs(iyr))/2;
dxy(g.curx,g.cury,&ux,&uy);
XDrawArc(dpy,window1,gc,ux-ixr,uy-ixr,ixr*2,ixr*2,0,64*360);
}
d_circle_fill(double zr)
{
static int ixr,iyr;
int rr;
int ux,uy;
rxy(zr,zr,&ixr,&iyr);
rr = (fabs(ixr)+fabs(iyr))/2;
dxy(g.curx,g.cury,&ux,&uy);
XFillArc(dpy,window1,gcf,ux-rr,uy-rr,rr*2,rr*2,0,64*360);
}
/*---------------------------------------------------------------------------*/
d_bezier(dbl x1,dbl y1,dbl x2,dbl y2,dbl x3,dbl y3)
{
double ax,bx,cx,ay,by,cy,dist;
double xxx,yyy,i,t,nstep,x0,y0;
g_get_xy(&x0,&y0);
dist = fabs(x3-x0) + fabs(y3-y0);
nstep = 12;
if (dist<1) nstep = 7;
if (dist<.5) nstep = 3;
if (dist<.1) {
g_line(x3,y3);
return;
}
cx = (x1-x0)*3;
bx = (x2-x1)*3-cx;
ax = x3-x0-cx-bx;
cy = (y1-y0)*3;
by = (y2-y1)*3-cy;
ay = y3-y0-cy-by;
for (i=0;i<=nstep;i++) {
t = i/nstep;
xxx = ax*pow(t,3.0) + bx*t*t + cx*t + x0;
yyy = ay*pow(t,3.0) + by*t*t + cy*t + y0;
g_line(xxx,yyy);
}
}
/*---------------------------------------------------------------------------*/
d_set_color(long f)
{
int i;
colortyp cc;
cc.l = f;
i = 1;
if (cc.b[B_R]>1 && cc.b[B_G]>1 && cc.b[B_B]>1) i = 9;
if (cc.b[B_R]>60 && cc.b[B_G]>60 && cc.b[B_B]>60) i = 8;
if (cc.b[B_R]>100) i = 2;
if (cc.b[B_B]>100) i = 4;
if (cc.b[B_G]>100) i = 3;
if (cc.b[B_R]>100 && cc.b[B_G]>100) i = 7;
if (cc.b[B_G]>100 && cc.b[B_B]>100) i = 5;
if (cc.b[B_R]>100 && cc.b[B_G]>100 && cc.b[B_B]>100) i = 8;
if (cc.b[B_R]>250 && cc.b[B_G]>250 && cc.b[B_B]>250) i = 0;
setcolor(i);
}
d_set_fill(long f)
{
int i;
colortyp cc;
cc.l = f;
i = 1;
if (cc.b[B_R]>1 && cc.b[B_G]>1 && cc.b[B_B]>1) i = 9;
if (cc.b[B_R]>60 && cc.b[B_G]>60 && cc.b[B_B]>60) i = 8;
if (cc.b[B_R]>100) i = 2;
if (cc.b[B_B]>100) i = 4;
if (cc.b[B_G]>100) i = 3;
if (cc.b[B_R]>100 && cc.b[B_G]>100) i = 7;
if (cc.b[B_G]>100 && cc.b[B_B]>100) i = 5;
if (cc.b[B_R]>100 && cc.b[B_G]>100 && cc.b[B_B]>100) i = 8;
if (cc.b[B_R]>250 && cc.b[B_G]>250 && cc.b[B_B]>250) i = 0;
setfillcolor(i);
}
/*---------------------------------------------------------------------------*/
d_beginclip()
{
}
d_endclip()
{
}
struct char_data {float wx,wy,x1,y1,x2,y2; };
int font_get_chardata(struct char_data **cd, int ff, int cc);
/*---------------------------------------------------------------------------*/
int safnt;
int simple_char(int cc);
d_char(int font, int cc)
{
static struct char_data cd;
static int ix1,ix2,iy1,iy2;
static int ux,uy;
char ss[2];
ss[0] = cc;
ss[1] = 0;
if (safnt==0) safnt = pass_font("PLSR");
if (font_get_encoding(font)>2) {
my_char(font,cc);
return;
}
my_char(safnt,cc);
}
/*
int XDrawImageString(dpy, window1, gc, 75, 75, message[state], strlen(message[state]));
*/