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#ifndef lint |
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static const char RCSid[] = "$Id: x11plot.c,v 1.2 2003/11/17 02:21:53 greg Exp $"; |
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#endif |
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/* |
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* X window plotting functions |
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* |
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* 2/26/86 |
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*/ |
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|
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|
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#include "meta.h" |
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|
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#include "plot.h" |
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|
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#undef TRUE |
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|
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#undef FALSE |
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|
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#include <X11/Xlib.h> |
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|
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|
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#define BORWIDTH 5 |
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|
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#define BlackPix BlackPixel(dpy,0 ) |
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#define WhitePix WhitePixel(dpy,0 ) |
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|
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#define mapx(x) CONV(x,dxsize) |
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#define mapy(y) CONV((XYSIZE-1)-(y),dysize) |
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|
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#define MAXVERT 128 |
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|
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#define MAXCOLOR 65535 |
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|
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/* X window fonts */ |
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static struct { |
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char *name; /* font name */ |
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Font id; /* font id */ |
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} font[] = { |
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{"9x15", 0}, |
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{"8x13", 0}, |
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{"6x13", 0}, |
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{"vtdwidth", 0}, |
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{"accordbfx", 0} |
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}; |
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|
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/* map to our matrix string types */ |
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static int fontmap[16] = {0,3,0,3,1,3,1,3,2,4,2,4,2,4,2,4}; |
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|
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#define LONG_DASHED_LIST_LENGTH 2 |
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#define SHORT_DASHED_LIST_LENGTH 2 |
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#define DOTTED_LIST_LENGTH 2 |
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|
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int dash_list_length[] = { |
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0, |
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LONG_DASHED_LIST_LENGTH, |
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SHORT_DASHED_LIST_LENGTH, |
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DOTTED_LIST_LENGTH, |
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}; |
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|
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unsigned char long_dashed[LONG_DASHED_LIST_LENGTH] = {4,7}; |
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unsigned char short_dashed[SHORT_DASHED_LIST_LENGTH] = {4,3}; |
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unsigned char dotted[DOTTED_LIST_LENGTH] = {5,2}; |
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|
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unsigned char *Linetypes[] = { |
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0, |
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long_dashed, |
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short_dashed, |
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dotted, |
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}; |
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|
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Display *dpy; |
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Window wind; /* our window */ |
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Colormap cmap; |
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GC gc; |
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Font curfont; /* current font */ |
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int curwidth; /* current width of lines */ |
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int curfill; /* current fill style (FillTiled or FillSolid) */ |
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int curcol; /* current color */ |
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int curlinetype; /* current line style */ |
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XGCValues gcval; |
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int pixel[4]; |
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int dxsize, dysize; /* window size */ |
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int debug = False; /* use XSynchronize if true */ |
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|
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static void |
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adjustsize() |
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{ |
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if (dxsize > dysize) |
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dxsize = dysize; |
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else |
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dysize = dxsize; |
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} |
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|
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|
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void |
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init(name, geom) /* initialize window */ |
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char *name; |
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char *geom; |
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{ |
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char defgeom[32]; |
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XColor cdef,dum; |
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XEvent evnt; |
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|
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curfont = curfill = curcol = -1; |
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curlinetype = 0; |
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|
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if ((dpy=XOpenDisplay("")) == NULL) |
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error(SYSTEM, "can't open display"); |
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|
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/* for debugging so we don't have to flush always */ |
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if (debug) |
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(void) XSynchronize(dpy, True); |
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|
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dxsize = DisplayWidth(dpy,0) - 2*BORWIDTH-4; |
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dysize = DisplayHeight(dpy,0) - 2*BORWIDTH-100; |
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adjustsize(); |
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|
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sprintf(defgeom, "=%dx%d+2+25", dxsize, dysize); |
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/* XUseGeometry(dpy,0,geom,defgeom,BORWIDTH,100,100,100,100, |
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&xoff,&yoff,&dxsize,&dysize); */ |
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gc = DefaultGC(dpy,0); /* get default gc */ |
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cmap = DefaultColormap(dpy,0); /* and colormap */ |
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|
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wind = XCreateSimpleWindow(dpy,DefaultRootWindow(dpy),0,0,dxsize,dysize, |
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BORWIDTH,BlackPix,WhitePix); |
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if (wind == 0) |
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error(SYSTEM, "can't create window"); |
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XStoreName(dpy, wind, name); |
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XMapRaised(dpy, wind); |
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XSelectInput(dpy, wind, StructureNotifyMask | ButtonPressMask | ExposureMask); |
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if (DisplayPlanes(dpy,0) < 2) { /* less than 2 color planes, use black */ |
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pixel[0] = pixel[1] = pixel[2] = pixel[3] = BlackPix; |
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} else { |
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if (XAllocNamedColor(dpy, cmap, "black", &dum, &cdef)==0) |
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error(USER,"cannot allocate black!"); |
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pixel[0] = cdef.pixel; |
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if (XAllocNamedColor(dpy, cmap, "red", &dum, &cdef)==0) |
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{ |
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error(WARNING,"cannot allocate red"); |
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cdef.pixel = BlackPix; |
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} |
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pixel[1] = cdef.pixel; |
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if (XAllocNamedColor(dpy, cmap, "green", &dum, &cdef)==0) |
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{ |
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error(WARNING,"cannot allocate green"); |
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cdef.pixel = BlackPix; |
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} |
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pixel[2] = cdef.pixel; |
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if (XAllocNamedColor(dpy, cmap, "blue", &dum, &cdef)==0) |
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{ |
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error(WARNING,"cannot allocate blue"); |
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cdef.pixel = BlackPix; |
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} |
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pixel[3] = cdef.pixel; |
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} |
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|
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while (1) |
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{ |
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XNextEvent(dpy, &evnt); |
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if (evnt.type == ConfigureNotify) /* wait for first ConfigureNotify */ |
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break; |
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} |
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dxsize = evnt.xconfigure.width; |
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dysize = evnt.xconfigure.height; |
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adjustsize(); |
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while (1) |
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{ |
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XNextEvent(dpy, &evnt); |
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if (evnt.type == Expose) /* wait for first Expose */ |
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break; |
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} |
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} |
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|
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|
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void |
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endpage() /* end of this graph */ |
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{ |
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XEvent evnt; |
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int quit=False; |
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|
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XFlush(dpy); |
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XBell(dpy, 0); |
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while ( !quit ) { |
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XNextEvent(dpy, &evnt); |
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switch (evnt.type) { |
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case ConfigureNotify: |
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dxsize = evnt.xconfigure.width; |
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dysize = evnt.xconfigure.height; |
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adjustsize(); |
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break; |
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case Expose: |
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replay((int)((long)XYSIZE*evnt.xexpose.x/dxsize), |
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(int)((long)XYSIZE*(dysize-evnt.xexpose.y-evnt.xexpose.height)/dysize), |
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(int)((long)XYSIZE*(evnt.xexpose.x+evnt.xexpose.width)/dxsize), |
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(int)((long)XYSIZE*(dysize-evnt.xexpose.y)/dysize)); |
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break; |
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case ButtonPress: |
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quit = True; |
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break; |
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} /* switch */ |
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} /* for */ |
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XClearWindow(dpy, wind); |
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|
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} |
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|
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|
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|
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void |
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printstr(p) /* output a string */ |
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|
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register PRIMITIVE *p; |
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|
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{ |
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int fn; |
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int col; |
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|
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fn = fontmap[(p->arg0 >> 2) & 017]; /* get font number */ |
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/* set font */ |
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if (font[fn].id == 0) |
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{ |
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font[fn].id = XLoadFont(dpy, font[fn].name); |
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if (font[fn].id == 0) |
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{ |
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sprintf(errmsg, "can't open font \"%s\"", font[fn].name); |
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error(SYSTEM, errmsg); |
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} |
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} |
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col = p->arg0 & 03; |
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if (curcol != col) |
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{ |
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curcol = col; |
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XSetForeground(dpy, gc, pixel[col]); |
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} |
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if (curfont != font[fn].id) |
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{ |
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curfont = font[fn].id; |
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XSetFont(dpy, gc, curfont); |
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} |
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|
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XDrawImageString(dpy, wind, gc, mapx(p->xy[XMN]), mapy(p->xy[YMN]), |
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p->args, strlen(p->args)); |
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} |
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|
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|
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|
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|
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|
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void |
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plotlseg(p) /* plot a line segment */ |
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|
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register PRIMITIVE *p; |
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|
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{ |
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int x1, y1, x2, y2; |
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int linetype, ps, pw; |
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int col; |
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|
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linetype = (p->arg0 >> 4) & 03; /* line style (solid, dashed, etc) */ |
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|
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col = p->arg0 & 03; /* color */ |
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|
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ps = WIDTH((p->arg0 >> 2) & 03); |
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pw = CONV((ps)/2, dxsize); |
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|
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x1 = mapx(p->xy[XMN]); |
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x2 = mapx(p->xy[XMX]); |
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if (p->arg0 & 0100) { /* reverse slope */ |
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y1 = mapy(p->xy[YMX]); |
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y2 = mapy(p->xy[YMN]); |
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} else { |
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y1 = mapy(p->xy[YMN]); |
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y2 = mapy(p->xy[YMX]); |
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} |
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|
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if (curcol != col || curwidth != pw) |
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{ |
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curcol = col; |
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gcval.foreground = pixel[col]; |
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curwidth = pw; |
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gcval.line_width = pw*2+1; /* convert to thickness in pixels */ |
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gcval.join_style = JoinRound; |
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XChangeGC(dpy, gc, GCJoinStyle|GCLineWidth|GCForeground, &gcval); |
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} |
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if (curlinetype != linetype) |
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{ |
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curlinetype = linetype; |
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if (linetype==0) |
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gcval.line_style = LineSolid; |
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else |
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{ |
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gcval.line_style = LineOnOffDash; |
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XSetDashes(dpy, gc, 0, Linetypes[linetype], dash_list_length[linetype]); |
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} |
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XChangeGC(dpy, gc, GCLineStyle, &gcval); |
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} |
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XDrawLine(dpy,wind,gc,x1,y1,x2,y2); |
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} |
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|
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|
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void |
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pXFlush() |
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{ |
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XFlush(dpy); |
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} |
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|
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|
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#ifdef nyet |
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|
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static void |
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fill(xmin,ymin,xmax,ymax,pm) |
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int xmin,ymin,xmax,ymax; |
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Pixmap pm; |
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{ |
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if (pm != 0 && curpat != pm) |
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{ |
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XSetTile(dpy, gc, pm); |
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curpat = pm; |
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} |
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XFillRectangle(dpy, wind, gc, xmin, ymin, xmax-xmin+1, ymax-ymin+1); |
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} |
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|
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|
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void |
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fillrect(p) /* fill a rectangle */ |
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|
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register PRIMITIVE *p; |
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|
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{ |
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int left, right, top, bottom; |
| 330 |
|
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left = mapx(p->xy[XMN]); |
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bottom = mapy(p->xy[YMN]); |
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right = mapx(p->xy[XMX]); |
| 334 |
top = mapy(p->xy[YMX]); |
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|
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fill(left, top, right, bottom, pixpat(pati[(p->arg0>>2)&03],p->arg0&03)); |
| 337 |
|
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} |
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|
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|
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|
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|
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void |
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filltri(p) /* fill a triangle */ |
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|
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register PRIMITIVE *p; |
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|
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{ |
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Vertex v[4]; |
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int left, right, top, bottom; |
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|
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left = mapx(p->xy[XMN]); |
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right = mapx(p->xy[XMX]); |
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top = mapy(p->xy[YMX]); |
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bottom = mapy(p->xy[YMN]); |
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|
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switch (p->arg0 & 060) { |
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case 0: /* right (& down) */ |
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v[0].x = left; v[0].y = bottom; |
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v[1].x = right; v[1].y = bottom; |
| 361 |
v[2].x = right; v[2].y = top; |
| 362 |
break; |
| 363 |
case 020: /* up */ |
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v[0].x = right; v[0].y = bottom; |
| 365 |
v[1].x = right; v[1].y = top; |
| 366 |
v[2].x = left; v[2].y = top; |
| 367 |
break; |
| 368 |
case 040: /* left */ |
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v[0].x = right; v[0].y = top; |
| 370 |
v[1].x = left; v[1].y = top; |
| 371 |
v[2].x = left; v[2].y = bottom; |
| 372 |
break; |
| 373 |
case 060: /* down */ |
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v[0].x = left; v[0].y = top; |
| 375 |
v[1].x = left; v[1].y = bottom; |
| 376 |
v[2].x = right; v[2].y = bottom; |
| 377 |
break; |
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} |
| 379 |
v[3].x = v[0].x; v[3].y = v[0].y; |
| 380 |
v[0].flags = v[1].flags = v[2].flags = v[3].flags = 0; |
| 381 |
if (curfill != FillTiled) |
| 382 |
{ |
| 383 |
XSetFillStyle(dpy, gc, FillTiled); |
| 384 |
curfill = FillTiled; |
| 385 |
XSetTile(dpy, gc, pixpat(pati[(p->arg0>>2)&03],p->arg0&03)); |
| 386 |
} |
| 387 |
XDrawFIlled(dpy, wind, gc, v, 4); |
| 388 |
} |
| 389 |
|
| 390 |
|
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vpod |
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xform(xp, yp, p) /* transform a point according to p */ |
| 393 |
|
| 394 |
register int *xp, *yp; |
| 395 |
register PRIMITIVE *p; |
| 396 |
|
| 397 |
{ |
| 398 |
int x, y; |
| 399 |
|
| 400 |
switch (p->arg0 & 060) { |
| 401 |
case 0: /* right */ |
| 402 |
x = *xp; |
| 403 |
y = *yp; |
| 404 |
break; |
| 405 |
case 020: /* up */ |
| 406 |
x = (XYSIZE-1) - *yp; |
| 407 |
y = *xp; |
| 408 |
break; |
| 409 |
case 040: /* left */ |
| 410 |
x = (XYSIZE-1) - *xp; |
| 411 |
y = (XYSIZE-1) - *yp; |
| 412 |
break; |
| 413 |
case 060: /* down */ |
| 414 |
x = *yp; |
| 415 |
y = (XYSIZE-1) - *xp; |
| 416 |
break; |
| 417 |
} |
| 418 |
|
| 419 |
*xp = CONV(x, p->xy[XMX] - p->xy[XMN]) + p->xy[XMN]; |
| 420 |
*yp = CONV(y, p->xy[YMX] - p->xy[YMN]) + p->xy[YMN]; |
| 421 |
|
| 422 |
} |
| 423 |
|
| 424 |
|
| 425 |
void |
| 426 |
fillpoly(p) /* fill a polygon */ |
| 427 |
|
| 428 |
register PRIMITIVE *p; |
| 429 |
|
| 430 |
{ |
| 431 |
int x0, y0, curx, cury; |
| 432 |
PolyHandle polyh; |
| 433 |
char *nextscan(); |
| 434 |
register char *s; |
| 435 |
|
| 436 |
polyh = OpenPoly(); |
| 437 |
|
| 438 |
if ((s = nextscan(nextscan(p->args, "%d", &x0), "%d", &y0)) == NULL) |
| 439 |
error(USER, "illegal polygon spec in fillpoly"); |
| 440 |
|
| 441 |
xform(&x0, &y0, p); |
| 442 |
x0 = mapx(x0); y0 = mapy(y0); |
| 443 |
MoveTo(x0, y0); |
| 444 |
|
| 445 |
while ((s = nextscan(nextscan(s, "%d", &curx), "%d", &cury)) != NULL) { |
| 446 |
xform(&curx, &cury, p); |
| 447 |
curx = mapx(curx); cury = mapy(cury); |
| 448 |
LineTo(curx, cury); |
| 449 |
} |
| 450 |
LineTo(x0, y0); |
| 451 |
|
| 452 |
ClosePoly(); |
| 453 |
|
| 454 |
if (p->arg0 & 0100) { /* draw border */ |
| 455 |
if (curpat != 0) { |
| 456 |
PenPat(macpat[0]); |
| 457 |
curpat = 0; |
| 458 |
} |
| 459 |
if (curpsiz != 1) { |
| 460 |
PenSize(1, 1); |
| 461 |
curpsiz = 1; |
| 462 |
} |
| 463 |
if (curpmod != patOr) { |
| 464 |
PenMode(patOr); |
| 465 |
curpmod = patOr; |
| 466 |
} |
| 467 |
FramePoly(polyh); |
| 468 |
} |
| 469 |
|
| 470 |
setfill(p->arg0 & 077); |
| 471 |
PaintPoly(polyh); |
| 472 |
KillPoly(polyh); |
| 473 |
xpos = -1; |
| 474 |
ypos = -1; |
| 475 |
|
| 476 |
} |
| 477 |
|
| 478 |
#else |
| 479 |
|
| 480 |
void filltri(PRIMITIVE *p) {} |
| 481 |
void fillpoly(PRIMITIVE *p) {} |
| 482 |
void fillrect(PRIMITIVE *p) {} |
| 483 |
|
| 484 |
#endif |
