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path: root/src/drv/cddxf.c
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-rw-r--r--src/drv/cddxf.c1184
1 files changed, 1184 insertions, 0 deletions
diff --git a/src/drv/cddxf.c b/src/drv/cddxf.c
new file mode 100644
index 0000000..b5c8854
--- /dev/null
+++ b/src/drv/cddxf.c
@@ -0,0 +1,1184 @@
+/** \file
+ * \brief DXF driver
+ *
+ * See Copyright Notice in cd.h
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <limits.h>
+#include "cd.h"
+#include "cd_private.h"
+#include "cddxf.h"
+
+
+#ifndef ignore
+#define ignore(x) (void)x
+#endif
+
+#ifndef max
+#define max(x, y) ((x > y)? x : y)
+#endif
+
+#ifndef min
+#define min(x, y) ((x < y)? x : y)
+#endif
+
+struct _cdCtxCanvas
+{
+ cdCanvas* canvas;
+
+ FILE *file; /* pointer to file */
+ int layer; /* layer */
+
+ int tf; /* text font */
+ double th; /* text height (in points) */
+ int toa; /* text oblique angle (for italics) */
+ int tha, tva; /* text horizontal and vertical alignment */
+
+ int fgcolor; /* foreground AutoCAD palette color */
+
+ int lt; /* line type */
+ double lw; /* line width (in milimeters) */
+};
+
+
+static void wnamline (cdCtxCanvas* ctxcanvas, int t) /* write name of a line */
+{
+
+ static char *line[] =
+ {"CONTINUOUS",
+ "DASHED",
+ "HIDDEN",
+ "CENTER",
+ "PHANTOM",
+ "DOT",
+ "DASHDOT",
+ "BORDER",
+ "DIVIDE"};
+
+/*
+ AutoCAD line styles ( see acad.lin ):
+
+ 0 CONTINUOUS ____________________________________________
+ 1 DASHED __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
+ 2 HIDDEN _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
+ 3 CENTER ____ _ ____ _ ____ _ ____ _ ____ _ ____ _ __
+ 4 PHANTOM _____ _ _ _____ _ _ _____ _ _ _____ _ _ ____
+ 5 DOT ............................................
+ 6 DASHDOT __ . __ . __ . __ . __ . __ . __ . __ . __ .
+ 7 BORDER __ __ . __ __ . __ __ . __ __ . __ __ . __ _
+ 8 DIVIDE __ . . __ . . __ . . __ . . __ . . __ . . __
+
+*/
+
+ fprintf (ctxcanvas->file, "%s\n", line[t]);
+}
+
+
+static void wnamfont (cdCtxCanvas *ctxcanvas, int t) /* write name of a font */
+{
+ static char *font[] =
+ {
+ "STANDARD",
+ "ROMAN",
+ "ROMAN_BOLD",
+ "ROMANTIC",
+ "ROMANTIC_BOLD",
+ "SANSSERIF",
+ "SANSSERIF_BOLD",
+ };
+/*
+ CD Fonts / Style AutoCAD Fonts
+ -------------------------------------------------------------------
+ CD_SYSTEM 0 STANDARD
+ CD_COURIER / CD_PLAIN 1 ROMAN
+ CD_COURIER / CD_BOLD 2 ROMAN_BOLD
+ CD_COURIER / CD_ITALIC 1 ROMAN (ctxcanvas->toa = 15)
+ CD_COURIER / CD_BOLD_ITALIC 2 ROMAN_BOLD (ctxcanvas->toa = 15)
+ CD_TIMES_ROMAN / CD_PLAIN 3 ROMANTIC
+ CD_TIMES_ROMAN / CD_BOLD 4 ROMANTIC_BOLD
+ CD_TIMES_ROMAN / CD_ITALIC 3 ROMANTIC (ctxcanvas->toa = 15)
+ CD_TIMES_ROMAN / CD_BOLD_ITALIC 4 ROMANTIC_BOLD (ctxcanvas->toa = 15)
+ CD_HELVETICA / CD_PLAIN 5 SANSSERIF
+ CD_HELVETICA / CD_BOLD 6 SANSSERIF_BOLD
+ CD_HELVETICA / CD_ITALIC 5 SANSSERIF (ctxcanvas->toa = 15)
+ CD_HELVETICA / CD_BOLD_ITALIC 6 SANSSERIF_BOLD(ctxcanvas->toa = 15)
+*/
+
+ fprintf (ctxcanvas->file, "%s\n", font[t]);
+}
+
+
+static void writepoly (cdCtxCanvas *ctxcanvas, cdPoint *poly, int nv) /* write polygon */
+{
+ int i;
+
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "POLYLINE\n" );
+ fprintf ( ctxcanvas->file, "8\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->layer); /* current layer */
+
+ fprintf ( ctxcanvas->file, "6\n" );
+ wnamline( ctxcanvas, ctxcanvas->lt ); /* line type */
+
+ fprintf ( ctxcanvas->file, "62\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->fgcolor );
+ fprintf ( ctxcanvas->file, "66\n" );
+ fprintf ( ctxcanvas->file, "1\n" );
+ fprintf ( ctxcanvas->file, "40\n" );
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->lw/ctxcanvas->canvas->xres );
+ fprintf ( ctxcanvas->file, "41\n" ); /* entire polygon line width */
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->lw/ctxcanvas->canvas->xres );
+ for ( i=0; i<nv; i++ )
+ {
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "VERTEX\n" );
+ fprintf ( ctxcanvas->file, "8\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->layer); /* current layer */
+ fprintf ( ctxcanvas->file, "10\n" );
+ fprintf ( ctxcanvas->file, "%f\n", poly[i].x/ctxcanvas->canvas->xres );
+ fprintf ( ctxcanvas->file, "20\n" );
+ fprintf ( ctxcanvas->file, "%f\n", poly[i].y/ctxcanvas->canvas->xres );
+ }
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "SEQEND\n" );
+}
+
+static void writepolyf (cdCtxCanvas *ctxcanvas, cdfPoint *poly, int nv) /* write polygon */
+{
+ int i;
+
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "POLYLINE\n" );
+ fprintf ( ctxcanvas->file, "8\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->layer); /* current layer */
+
+ fprintf ( ctxcanvas->file, "6\n" );
+ wnamline( ctxcanvas, ctxcanvas->lt ); /* line type */
+
+ fprintf ( ctxcanvas->file, "62\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->fgcolor );
+ fprintf ( ctxcanvas->file, "66\n" );
+ fprintf ( ctxcanvas->file, "1\n" );
+ fprintf ( ctxcanvas->file, "40\n" );
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->lw/ctxcanvas->canvas->xres );
+ fprintf ( ctxcanvas->file, "41\n" ); /* entire polygon line width */
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->lw/ctxcanvas->canvas->xres );
+ for ( i=0; i<nv; i++ )
+ {
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "VERTEX\n" );
+ fprintf ( ctxcanvas->file, "8\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->layer); /* current layer */
+ fprintf ( ctxcanvas->file, "10\n" );
+ fprintf ( ctxcanvas->file, "%f\n", poly[i].x/ctxcanvas->canvas->xres );
+ fprintf ( ctxcanvas->file, "20\n" );
+ fprintf ( ctxcanvas->file, "%f\n", poly[i].y/ctxcanvas->canvas->xres );
+ }
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "SEQEND\n" );
+}
+
+static void deflines (cdCtxCanvas *ctxcanvas) /* define lines */
+{
+ int i, j;
+ static char *line[] =
+ {"Solid line",
+ "Dashed line",
+ "Hidden line",
+ "Center line",
+ "Phantom line",
+ "Dot line",
+ "Dashdot line",
+ "Border line",
+ "Divide Line"};
+
+#define TABSIZE (sizeof(tab)/sizeof(tab[0]))
+
+ static int tab[][8] =
+ {
+ { 0, 0, 0 , 0, 0, 0, 0, 0 },
+ { 2, 15, 10, -5, 0, 0, 0, 0 },
+ { 2, 10, 5 , -5, 0, 0, 0, 0 },
+ { 4, 35, 20, -5, 5, -5, 0, 0 },
+ { 6, 50, 25, -5, 5, -5, 5, -5 },
+ { 2, 5, 0 , -5, 0, 0, 0, 0 },
+ { 4, 20, 10, -5, 0, -5, 0, 0 },
+ { 6, 35, 10, -5, 10, -5, 0, -5 },
+ { 6, 25, 10, -5, 0, -5, 0, -5 }
+ };
+
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "TABLE\n");
+ fprintf (ctxcanvas->file, "2\n");
+ fprintf (ctxcanvas->file, "LTYPE\n");
+ fprintf (ctxcanvas->file, "70\n");
+ fprintf (ctxcanvas->file, "5\n");
+ for (j = 0; j < TABSIZE; j++)
+ {
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "LTYPE\n");
+ fprintf (ctxcanvas->file, "2\n");
+
+ wnamline (ctxcanvas, j); /* line style */
+
+ fprintf (ctxcanvas->file, "70\n");
+ fprintf (ctxcanvas->file, "64\n");
+ fprintf (ctxcanvas->file, "3\n");
+ fprintf (ctxcanvas->file, "%s\n", line[j]); /* line style */
+ fprintf (ctxcanvas->file, "72\n");
+ fprintf (ctxcanvas->file, "65\n");
+ fprintf (ctxcanvas->file, "73\n");
+ fprintf (ctxcanvas->file, "%d\n", tab[j][0]); /* number of parameters */
+ fprintf (ctxcanvas->file, "40\n");
+ fprintf (ctxcanvas->file, "%d\n", tab[j][1]);
+ for (i = 2; i < 2 + tab[j][0]; i++)
+ {
+ fprintf (ctxcanvas->file, "49\n");
+ fprintf (ctxcanvas->file, "%d\n", tab[j][i]); /* parameters */
+ }
+ }
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "ENDTAB\n");
+}
+
+
+static void deffonts (cdCtxCanvas *ctxcanvas) /* define fonts */
+{
+ int i;
+ static char *font[] =
+ {
+ "romanc.shx" ,
+ "romant.shx" ,
+ "rom_____.pfb",
+ "romb____.pfb",
+ "sas_____.pfb",
+ "sasb____.pfb"
+ };
+
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "TABLE\n");
+ fprintf (ctxcanvas->file, "2\n");
+ fprintf (ctxcanvas->file, "STYLE\n");
+ fprintf (ctxcanvas->file, "70\n");
+ fprintf (ctxcanvas->file, "5\n");
+ for (i = 1; i < 7; i++)
+ {
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "STYLE\n");
+ fprintf (ctxcanvas->file, "2\n");
+
+ wnamfont (ctxcanvas, i); /* font style name */
+
+ fprintf (ctxcanvas->file, "3\n");
+ fprintf (ctxcanvas->file, "%s\n", font[i-1]); /* font style file */
+ fprintf (ctxcanvas->file, "70\n");
+ fprintf (ctxcanvas->file, "64\n");
+ fprintf (ctxcanvas->file, "71\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "40\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "41\n");
+ fprintf (ctxcanvas->file, "1\n");
+ fprintf (ctxcanvas->file, "42\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "50\n");
+ fprintf (ctxcanvas->file, "0\n");
+ }
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "ENDTAB\n");
+}
+
+static void cddeactivate (cdCtxCanvas *ctxcanvas)
+{
+ fflush (ctxcanvas->file); /* flush file */
+}
+
+static void cdkillcanvas(cdCtxCanvas *ctxcanvas)
+{
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "ENDSEC\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "EOF\n"); /* fputs eof */
+ fprintf (ctxcanvas->file, " \n");
+
+ fflush (ctxcanvas->file); /* flush file */
+ fclose (ctxcanvas->file);
+
+ memset(ctxcanvas, 0, sizeof(cdCtxCanvas));
+ free (ctxcanvas);
+}
+
+static void cdflush (cdCtxCanvas *ctxcanvas)
+{
+ ctxcanvas->layer++;
+}
+
+/*==========================================================================*/
+/* Primitives */
+/*==========================================================================*/
+static void cdpoly(cdCtxCanvas *ctxcanvas, int mode, cdPoint* poly, int n)
+{
+ if (mode == CD_CLOSED_LINES || mode == CD_FILL)
+ {
+ poly[n].x = poly[0].x;
+ poly[n].y = poly[0].y;
+ n++;
+ }
+
+ writepoly (ctxcanvas, poly, n); /* write polygon */
+}
+
+static void cdline (cdCtxCanvas *ctxcanvas, int x1, int y1, int x2, int y2)
+{
+ cdPoint line[2]; /* uses new array of points to avoid */
+
+ line[0].x = x1; /* starting point */
+ line[0].y = y1;
+ line[1].x = x2; /* ending point */
+ line[1].y = y2;
+ writepoly (ctxcanvas, line, 2); /* draw line as a polygon */
+}
+
+static void cdboxrect(cdCtxCanvas *ctxcanvas, int xmin, int xmax, int ymin, int ymax)
+{
+ cdPoint rect[5]; /* uses new array of points to avoid */
+
+ rect[0].x = xmin;
+ rect[0].y = ymin;
+ rect[1].x = xmin;
+ rect[1].y = ymax;
+ rect[2].x = xmax; /* box edges */
+ rect[2].y = ymax;
+ rect[3].x = xmax;
+ rect[3].y = ymin;
+ rect[4].x = xmin;
+ rect[4].y = ymin;
+ writepoly (ctxcanvas, rect, 5); /* draw box as a polygon */
+}
+
+static void cdfpoly(cdCtxCanvas *ctxcanvas, int mode, cdfPoint* poly, int n)
+{
+ if (mode == CD_CLOSED_LINES || mode == CD_FILL)
+ {
+ poly[n].x = poly[0].x;
+ poly[n].y = poly[0].y;
+ n++;
+ }
+
+ writepolyf (ctxcanvas, poly, n); /* write polygon */
+}
+
+static void cdfline (cdCtxCanvas *ctxcanvas, double x1, double y1, double x2, double y2)
+{
+ cdfPoint line[2]; /* uses new array of points to avoid */
+
+ line[0].x = x1; /* starting point */
+ line[0].y = y1;
+ line[1].x = x2; /* ending point */
+ line[1].y = y2;
+ writepolyf (ctxcanvas, line, 2); /* draw line as a polygon */
+}
+
+static void cdfboxrect(cdCtxCanvas *ctxcanvas, double xmin, double xmax, double ymin, double ymax)
+{
+ cdfPoint rect[5]; /* uses new array of points to avoid */
+
+ rect[0].x = xmin;
+ rect[0].y = ymin;
+ rect[1].x = xmin;
+ rect[1].y = ymax;
+ rect[2].x = xmax; /* box edges */
+ rect[2].y = ymax;
+ rect[3].x = xmax;
+ rect[3].y = ymin;
+ rect[4].x = xmin;
+ rect[4].y = ymin;
+ writepolyf (ctxcanvas, rect, 5); /* draw box as a polygon */
+}
+
+/*--------------------------------------------------------------------------*/
+/* gives radius of the circle most resembling elliptic arc at angle t */
+/*--------------------------------------------------------------------------*/
+static double calc_radius (double a, double b, double t)
+{
+ return (pow ((a*a*sin(t)*sin(t) + b*b*cos(t)*cos(t)), 1.5))/(a*b);
+}
+
+/*--------------------------------------------------------------------------*/
+/* calculates bulge for a given circular arc segment (between points p1 and */
+/* p2, with radius r). Bulge is the tangent of 1/4 the angle theta of the */
+/* arc segment(a bulge of 1 is a semicircle, which has an angle of 180 deg) */
+/*--------------------------------------------------------------------------*/
+static double calc_bulge (double a, double b, double t1, double t2)
+{
+ cdfPoint p1, p2; /* initial and ending arc points */
+ double r; /* radius most resembling arc at angle (t1+t2)/2 */
+ double theta; /* angle of circular arc segment */
+ double sin_theta; /* sine of theta */
+ double dist_x; /* distance between two points along the x axis */
+ double dist_y; /* distance between two points along the y axis */
+ double halfdist; /* half distance between two points */
+
+ p1.x = a*cos(t1);
+ p1.y = b*sin(t1);
+ p2.x = a*cos(t2);
+ p2.y = b*sin(t2);
+ r = calc_radius (a, b, (t1+t2)/2);
+
+ dist_x = p2.x - p1.x;
+ dist_y = p2.y - p1.y;
+ halfdist = (sqrt (dist_x*dist_x + dist_y*dist_y))/2;
+ sin_theta = halfdist/r;
+ if (sin_theta > 1) sin_theta = 1;
+ theta = 2*asin(sin_theta);
+
+ return tan(theta/4);
+}
+
+static void writevertex (cdCtxCanvas *ctxcanvas, int xc, int yc, double a, double b, double t, double bulge)
+{
+ cdfPoint p;
+ p.x = (xc + a*cos(t))/ctxcanvas->canvas->xres;
+ p.y = (yc + b*sin(t))/ctxcanvas->canvas->xres;
+
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "VERTEX\n" );
+ fprintf ( ctxcanvas->file, "8\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->layer); /* current layer */
+ fprintf ( ctxcanvas->file, "10\n" );
+ fprintf ( ctxcanvas->file, "%f\n", p.x );
+ fprintf ( ctxcanvas->file, "20\n" ); /* vertex coordinates */
+ fprintf ( ctxcanvas->file, "%f\n", p.y );
+ fprintf ( ctxcanvas->file, "42\n" ); /* bulge from this vertex */
+ fprintf ( ctxcanvas->file, "%f\n", bulge ); /* to the next one */
+}
+
+static void cdarc (cdCtxCanvas *ctxcanvas, int xc, int yc, int w, int h, double a1, double a2)
+{
+ double bulge; /* bulge is the tangent of 1/4 the angle for a given */
+ /* circle arc segment (a bulge of 1 is a semicircle) */
+ double t; /* current arc angle being calculated */
+ double t1; /* a1 in radians */
+ double t2; /* a2 in radians */
+ double a; /* half horizontal axis */
+ double b; /* half vertical axis */
+ double seg_angle; /* angle of every arc segment */
+ double diff; /* angle between a1 and a2 */
+ int nseg; /* number of arc segments */
+ int i;
+
+ a = w/2;
+ b = h/2;
+ t1 = a1*CD_DEG2RAD; /* a1 in radians */
+ t2 = a2*CD_DEG2RAD; /* a2 in radians */
+ diff = fabs(a2 - a1);
+ nseg = cdRound(diff)/(360/32); /* 32 segments in closed ellipse */
+ nseg = max(nseg, 1);
+ seg_angle = (t2-t1)/nseg;
+
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "POLYLINE\n" );
+ fprintf ( ctxcanvas->file, "8\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->layer); /* current layer */
+ fprintf ( ctxcanvas->file, "6\n" );
+ wnamline( ctxcanvas, ctxcanvas->lt ); /* line type */
+ fprintf ( ctxcanvas->file, "62\n" );
+ fprintf ( ctxcanvas->file, "%3d\n", ctxcanvas->fgcolor ); /* color */
+ fprintf ( ctxcanvas->file, "66\n" );
+ fprintf ( ctxcanvas->file, "1\n" );
+ fprintf ( ctxcanvas->file, "70\n" );
+ fprintf ( ctxcanvas->file, "128\n" );
+ fprintf ( ctxcanvas->file, "40\n" );
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->lw );
+ fprintf ( ctxcanvas->file, "41\n" ); /* entire arc line width */
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->lw );
+
+ for (i=0, t=t1; i<nseg; i++, t+=seg_angle)
+ { /* calculate bulge between t */
+ bulge = calc_bulge (a, b, t, t+seg_angle); /* and t+seg_angle and write */
+ writevertex (ctxcanvas, xc, yc, a, b, t, bulge); /* vertex at t */
+ }
+ writevertex (ctxcanvas, xc, yc, a, b, t2, 0); /* bulge of last vertex is useless */
+
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "SEQEND\n" );
+}
+
+static void cdsector (cdCtxCanvas *ctxcanvas, int xc, int yc, int w, int h, double a1, double a2)
+{
+ double bulge; /* bulge is the tangent of 1/4 the angle for a given */
+ /* circle arc segment (a bulge of 1 is a semicircle) */
+ double t; /* current arc angle being calculated */
+ double t1; /* a1 in radians */
+ double t2; /* a2 in radians */
+ double a; /* half horizontal axis */
+ double b; /* half vertical axis */
+ double seg_angle; /* angle of every arc segment */
+ double diff; /* angle between a1 and a2 */
+ int nseg; /* number of arc segments */
+ int i;
+
+ a = w/2;
+ b = h/2;
+ t1 = a1*CD_DEG2RAD; /* a1 in radians */
+ t2 = a2*CD_DEG2RAD; /* a2 in radians */
+ diff = fabs(a2 - a1);
+ nseg = cdRound(diff)/(360/32); /* 32 segments in closed ellipse */
+ nseg = max(nseg, 1);
+ seg_angle = (t2-t1)/nseg;
+
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "POLYLINE\n" );
+ fprintf ( ctxcanvas->file, "8\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->layer); /* current layer */
+ fprintf ( ctxcanvas->file, "6\n" );
+ wnamline( ctxcanvas, ctxcanvas->lt ); /* line type */
+ fprintf ( ctxcanvas->file, "62\n" );
+ fprintf ( ctxcanvas->file, "%3d\n", ctxcanvas->fgcolor ); /* color */
+ fprintf ( ctxcanvas->file, "66\n" );
+ fprintf ( ctxcanvas->file, "1\n" );
+ fprintf ( ctxcanvas->file, "70\n" );
+ fprintf ( ctxcanvas->file, "128\n" );
+ fprintf ( ctxcanvas->file, "40\n" );
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->lw );
+ fprintf ( ctxcanvas->file, "41\n" ); /* entire arc line width */
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->lw );
+
+ if ((a2-a1) != 360)
+ writevertex (ctxcanvas, xc, yc, 0, 0, 0, 0); /* center */
+ for (i=0, t=t1; i<nseg; i++, t+=seg_angle)
+ { /* calculate bulge between t */
+ bulge = calc_bulge (a, b, t, t+seg_angle); /* and t+seg_angle and write */
+ writevertex (ctxcanvas, xc, yc, a, b, t, bulge); /* vertex at t */
+ }
+ writevertex (ctxcanvas, xc, yc, a, b, t2, 0); /* bulge of last vertex is useless */
+ if ((a2-a1) != 360)
+ writevertex (ctxcanvas, xc, yc, 0, 0, 0, 0); /* center */
+
+ fprintf ( ctxcanvas->file, " 0\n" );
+ fprintf ( ctxcanvas->file, "SEQEND\n" );
+}
+
+static void cdtext (cdCtxCanvas *ctxcanvas, int x, int y, const char *s)
+{
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "TEXT\n" );
+ fprintf ( ctxcanvas->file, "8\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->layer); /* current layer */
+ fprintf ( ctxcanvas->file, "7\n" );
+ wnamfont( ctxcanvas, ctxcanvas->tf ); /* current font */
+ fprintf ( ctxcanvas->file, "62\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->fgcolor ); /* color */
+ fprintf ( ctxcanvas->file, "10\n" );
+ fprintf ( ctxcanvas->file, "%f\n", x/ctxcanvas->canvas->xres ); /* current position */
+ fprintf ( ctxcanvas->file, "20\n" );
+ fprintf ( ctxcanvas->file, "%f\n", y/ctxcanvas->canvas->xres );
+ fprintf ( ctxcanvas->file, "11\n" );
+ fprintf ( ctxcanvas->file, "%f\n", x/ctxcanvas->canvas->xres ); /* alignment point */
+ fprintf ( ctxcanvas->file, "21\n" );
+ fprintf ( ctxcanvas->file, "%f\n", y/ctxcanvas->canvas->xres );
+ fprintf ( ctxcanvas->file, "40\n" );
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->th ); /* text height */
+ fprintf ( ctxcanvas->file, "50\n" );
+ fprintf ( ctxcanvas->file, "%f\n", ctxcanvas->canvas->text_orientation ); /* text orientation angle */
+ fprintf ( ctxcanvas->file, "51\n" );
+ fprintf ( ctxcanvas->file, "%3d\n", ctxcanvas->toa ); /* text oblique angle */
+ fprintf ( ctxcanvas->file, "72\n" );
+ fprintf ( ctxcanvas->file, "%3d\n", ctxcanvas->tha ); /* text horizontal alignment */
+ fprintf ( ctxcanvas->file, "73\n" );
+ fprintf ( ctxcanvas->file, "%3d\n", ctxcanvas->tva ); /* text vertical alignment */
+ fprintf ( ctxcanvas->file, "1\n" );
+ fprintf ( ctxcanvas->file, "%s\n", s ); /* text */
+}
+
+
+/*==========================================================================*/
+/* Attributes */
+/*==========================================================================*/
+
+static int cdlinestyle (cdCtxCanvas *ctxcanvas, int style)
+{
+ switch (style)
+ {
+ case CD_CONTINUOUS:
+ ctxcanvas->lt = 0;
+ break;
+ case CD_DASHED:
+ ctxcanvas->lt = 1;
+ break;
+ case CD_DOTTED:
+ ctxcanvas->lt = 5;
+ break;
+ case CD_DASH_DOT:
+ ctxcanvas->lt = 6;
+ break;
+ case CD_DASH_DOT_DOT:
+ ctxcanvas->lt = 8;
+ break;
+ }
+
+ return style;
+}
+
+static int cdlinewidth (cdCtxCanvas *ctxcanvas, int width)
+{
+ ctxcanvas->lw = width/ctxcanvas->canvas->xres;
+ return width;
+}
+
+static int cdfont (cdCtxCanvas *ctxcanvas, const char *type_face, int style, int size)
+{
+ /* obs: DXF's text height (ctxcanvas->th) corresponds to CD ascent */
+
+ if (cdStrEqualNoCase(type_face, "System"))
+ {
+ ctxcanvas->tf = 0;
+ ctxcanvas->toa = 0;
+ ctxcanvas->th = 0.75;
+ }
+ else if (cdStrEqualNoCase(type_face, "Courier"))
+ {
+ switch (style&3)
+ {
+ case CD_PLAIN:
+ ctxcanvas->tf = 1;
+ ctxcanvas->toa = 0;
+ break;
+
+ case CD_BOLD:
+ ctxcanvas->tf = 2;
+ ctxcanvas->toa = 0;
+ break;
+
+ case CD_ITALIC:
+ ctxcanvas->tf = 1;
+ ctxcanvas->toa = 15;
+ break;
+
+ case CD_BOLD_ITALIC:
+ ctxcanvas->tf = 2;
+ ctxcanvas->toa = 15;
+ break;
+ }
+ ctxcanvas->th = 0.75;
+ }
+ else if (cdStrEqualNoCase(type_face, "Times"))
+ {
+ switch (style&3)
+ {
+ case CD_PLAIN:
+ ctxcanvas->tf = 3;
+ ctxcanvas->toa = 0;
+ break;
+
+ case CD_BOLD:
+ ctxcanvas->tf = 4;
+ ctxcanvas->toa = 0;
+ break;
+
+ case CD_ITALIC:
+ ctxcanvas->tf = 3;
+ ctxcanvas->toa = 15;
+ break;
+
+ case CD_BOLD_ITALIC:
+ ctxcanvas->tf = 4;
+ ctxcanvas->toa = 15;
+ break;
+ }
+ ctxcanvas->th = 1.125;
+ }
+ else if (cdStrEqualNoCase(type_face, "Helvetica"))
+ {
+ switch (style&3)
+ {
+ case CD_PLAIN:
+ ctxcanvas->tf = 5;
+ ctxcanvas->toa = 0;
+ break;
+
+ case CD_BOLD:
+ ctxcanvas->tf = 6;
+ ctxcanvas->toa = 0;
+ break;
+
+ case CD_ITALIC:
+ ctxcanvas->tf = 5;
+ ctxcanvas->toa = 15;
+ break;
+
+ case CD_BOLD_ITALIC:
+ ctxcanvas->tf = 6;
+ ctxcanvas->toa = 15;
+ break;
+ }
+ ctxcanvas->th = 1.;
+ }
+ else
+ return 0;
+
+ ctxcanvas->th = ctxcanvas->th * cdGetFontSizePoints(ctxcanvas->canvas, size);
+
+ return 1;
+}
+
+static void cdgetfontdim (cdCtxCanvas *ctxcanvas, int *max_width, int *height, int *ascent, int *descent)
+{
+ double tangent_ta;
+ double pixel_th;
+
+ tangent_ta = tan(ctxcanvas->toa*CD_DEG2RAD);
+ pixel_th = (ctxcanvas->th*ctxcanvas->canvas->xres)/CD_MM2PT; /* points to pixels */
+ switch (ctxcanvas->tf)
+ {
+ case 0: /* STANDARD font (CD_SYSTEM) */
+ if (height) *height = cdRound(pixel_th*4/3);
+ if (ascent) *ascent = _cdRound(pixel_th);
+ if (descent) *descent = cdRound(pixel_th/3);
+ if (max_width) *max_width = _cdRound(pixel_th);
+ break;
+
+ case 1: /* ROMAN fonts (CD_COURIER) */
+ case 2:
+ if (height) *height = cdRound(pixel_th*4/3);
+ if (ascent) *ascent = _cdRound(pixel_th);
+ if (descent) *descent = cdRound(pixel_th/3);
+ if (max_width) *max_width = cdRound((pixel_th*21/20) + tangent_ta*(*ascent));
+ break;
+
+ case 3: /* ROMANTIC fonts (CD_TIMES_ROMAN) */
+ if (height) *height = cdRound(pixel_th*8/9);
+ if (ascent) *ascent = cdRound(pixel_th*2/3);
+ if (descent) *descent = cdRound(pixel_th*2/9);
+ if (max_width) *max_width = cdRound((pixel_th*14/15) + tangent_ta*(*ascent));
+ break;
+
+ case 4:
+ if (height) *height = cdRound(pixel_th*8/9);
+ if (ascent) *ascent = cdRound(pixel_th*2/3);
+ if (descent) *descent = cdRound(pixel_th*2/9);
+ if (max_width) *max_width = cdRound((pixel_th*29/30) + tangent_ta*(*ascent));
+ break;
+
+ case 5: /* SANSSERIF fonts (CD_HELVETICA) */
+ case 6:
+ if (height) *height = _cdRound(pixel_th);
+ if (ascent) *ascent = cdRound(pixel_th*3/4);
+ if (descent) *descent = cdRound(pixel_th/4);
+ if (max_width) *max_width = cdRound((pixel_th*15/16) + tangent_ta*(*ascent));
+ break;
+ }
+}
+
+static void cdgettextsize (cdCtxCanvas *ctxcanvas, const char *s, int *width, int *height)
+{
+ int i;
+ double tangent_ta;
+ double pixel_th;
+
+ i = (int)strlen(s);
+ tangent_ta = tan(ctxcanvas->toa*CD_DEG2RAD);
+ pixel_th = (ctxcanvas->th*ctxcanvas->canvas->xres)/CD_MM2PT; /* points to pixels */
+
+ switch (ctxcanvas->tf) /* width return value based on maximum character width */
+ {
+ case 0: /* STANDARD font (CD_SYSTEM) */
+ if (height) *height = cdRound(pixel_th*4/3);
+ if (width) *width = cdRound(pixel_th*i + (pixel_th/3)*(i-1));
+ break;
+
+ case 1: /* ROMAN fonts (CD_COURIER) */
+ case 2:
+ if (height) *height = cdRound(pixel_th*4/3);
+ if (width) *width = cdRound((pixel_th*21/20)*i + (pixel_th/10)*(i-1) + tangent_ta*pixel_th);
+ break;
+
+ case 3: /* ROMANTIC fonts (CD_TIMES_ROMAN) */
+ if (height) *height = cdRound(pixel_th*2/3 + pixel_th*2/9);
+ if (width) *width = cdRound((pixel_th*14/15)*i + (pixel_th/45)*(i-1) + tangent_ta*pixel_th*2/3);
+ break;
+
+ case 4:
+ if (height) *height = cdRound(pixel_th*2/3 + pixel_th*2/9);
+ if (width) *width = cdRound((pixel_th*29/30)*i + (pixel_th*2/45)*(i-1) + tangent_ta*pixel_th*2/3);
+ break;
+
+ case 5: /* SANSSERIF fonts (CD_HELVETICA) */
+ case 6:
+ if (height) *height = _cdRound(pixel_th);
+ if (width) *width = cdRound((pixel_th*15/16)*i + (pixel_th/45)*(i-1) + tangent_ta*pixel_th*3/4);
+ break;
+ }
+}
+
+static int cdtextalignment (cdCtxCanvas *ctxcanvas, int alignment)
+{
+ switch (alignment) /* convert alignment to DXF format */
+ {
+ case CD_BASE_LEFT:
+ ctxcanvas->tva = 0;
+ ctxcanvas->tha = 0;
+ break;
+
+ case CD_BASE_CENTER:
+ ctxcanvas->tva = 0;
+ ctxcanvas->tha = 1;
+ break;
+
+ case CD_BASE_RIGHT:
+ ctxcanvas->tva = 0;
+ ctxcanvas->tha = 2;
+ break;
+
+ case CD_SOUTH_WEST:
+ ctxcanvas->tva = 1;
+ ctxcanvas->tha = 0;
+ break;
+
+ case CD_SOUTH:
+ ctxcanvas->tva = 1;
+ ctxcanvas->tha = 1;
+ break;
+
+ case CD_SOUTH_EAST:
+ ctxcanvas->tva = 1;
+ ctxcanvas->tha = 2;
+ break;
+
+ case CD_WEST:
+ ctxcanvas->tva = 2;
+ ctxcanvas->tha = 0;
+ break;
+
+ case CD_CENTER:
+ ctxcanvas->tva = 2;
+ ctxcanvas->tha = 1;
+ break;
+
+ case CD_EAST:
+ ctxcanvas->tva = 2;
+ ctxcanvas->tha = 2;
+ break;
+
+ case CD_NORTH_WEST:
+ ctxcanvas->tva = 3;
+ ctxcanvas->tha = 0;
+ break;
+
+ case CD_NORTH:
+ ctxcanvas->tva = 3;
+ ctxcanvas->tha = 1;
+ break;
+
+ case CD_NORTH_EAST:
+ ctxcanvas->tva = 3;
+ ctxcanvas->tha = 2;
+ break;
+ }
+
+ return alignment;
+}
+
+/*==========================================================================*/
+/* Color */
+/*==========================================================================*/
+
+static void RGB_to_HSB (unsigned char r, unsigned char g, unsigned char b,
+ double *hue, double *sat, double *bright)
+{
+ double maximum;
+ double minimum;
+ double delta;
+ double red = r/255.; /* red, green and blue range from 0 to 1 */
+ double green = g/255.;
+ double blue = b/255.;
+
+ maximum = max(max(red, green), blue); /* stores higher index */
+ minimum = min(min(red, green), blue); /* stores lower index */
+ delta = maximum - minimum;
+
+ *bright = maximum*100;
+ *sat = 0;
+
+ if (maximum != 0) /* sat from 0 to 100 */
+ *sat = (delta*100)/maximum;
+
+ if (*sat != 0) /* hue from 0 to 359 */
+ {
+ if (red == maximum) *hue = (green - blue)/delta;
+ if (green == maximum) *hue = 2 + (blue - red)/delta;
+ if (blue == maximum) *hue = 4 + (red - green)/delta;
+ *hue *= 60;
+ if (*hue < 0) *hue += 360;
+ }
+ else
+ *hue = 0; /* color is greyscale (hue is meaningless) */
+}
+
+static int HSB_to_AutoCAD_Palette (double hue, double sat, double bright)
+{
+ int index;
+ int h, s, b;
+
+ if (bright < 17) /* 5 levels of brightness in AutoCAD palette, 6 with */
+ { /* black. If bright < 17, index is black (7). */
+ index = 7; /* 17 is 100/6 (rounded up) */
+ }
+ else if (sat < 10) /* low saturation makes color tend to */
+ { /* grey/white. 6 levels of grey/white in */
+ b = (int)floor(bright/14.3)-1;/* palette WITHOUT black. 14.3 is 100/7 */
+ index = 250 + b; /* index is grey to white(255 in palette) */
+ }
+ else
+ {
+ h = cdRound(hue/15.) + 1;
+ if (h > 24) h -= 24; /* 15 is 360/24 */
+ h *= 10; /* h ranges from 10 to 240 in palette */
+ s = (sat < 55) ? 1 : 0; /* s is 'high'(0) or 'low'(1) in palette */
+ b = (int)floor(bright/16.7)-1;/* b is 0, 2, 4, 6 or 8 in palette */
+ b = 2*(4 - b); /* (from brightest to dimmest) */
+ index = h + s + b; /* index is simple sum of h, s and b */
+ }
+ return index;
+}
+
+static int get_palette_index (long int color) /* gives closest palette */
+{ /* index to RGB color */
+ unsigned char red, green, blue;
+ double hue, sat, bright;
+
+ cdDecodeColor (color, &red, &green, &blue); /* AutoCAD palette is */
+ RGB_to_HSB (red, green, blue, &hue, &sat, &bright); /* based on HSB model */
+
+ return HSB_to_AutoCAD_Palette (hue, sat, bright);
+}
+
+static long int cdforeground (cdCtxCanvas *ctxcanvas, long int color)
+{
+ ctxcanvas->fgcolor = get_palette_index (color);
+ return color;
+}
+
+
+/*==========================================================================*/
+/* Server Images */
+/*==========================================================================*/
+
+static void cdpixel (cdCtxCanvas *ctxcanvas, int x, int y, long int color)
+{
+ int oldcolor = ctxcanvas->fgcolor; /* put 'color' as current */
+ cdforeground (ctxcanvas, color); /* foreground color */
+ fprintf ( ctxcanvas->file, "0\n" );
+ fprintf ( ctxcanvas->file, "POINT\n" );
+ fprintf ( ctxcanvas->file, "8\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->layer); /* current layer */
+ fprintf ( ctxcanvas->file, "62\n" );
+ fprintf ( ctxcanvas->file, "%d\n", ctxcanvas->fgcolor ); /* color */
+ fprintf ( ctxcanvas->file, "10\n" );
+ fprintf ( ctxcanvas->file, "%f\n", x/ctxcanvas->canvas->xres ); /* position */
+ fprintf ( ctxcanvas->file, " 20\n" );
+ fprintf ( ctxcanvas->file, "%f\n", y/ctxcanvas->canvas->xres );
+ ctxcanvas->fgcolor = oldcolor; /* retrieve old fgcolor */
+}
+
+/******************************************************/
+
+static void cdcreatecanvas(cdCanvas* canvas, void *data)
+{
+ char filename[10240] = "";
+ char* strdata = (char*)data;
+ cdCtxCanvas *ctxcanvas;
+ double param1, param2, param3;
+
+ ctxcanvas = (cdCtxCanvas *) malloc (sizeof (cdCtxCanvas));
+
+ param1 = 0;
+ param2 = 0;
+ param3 = 0;
+
+ strdata += cdGetFileName(strdata, filename);
+ if (filename[0] == 0)
+ return;
+
+ sscanf(strdata, "%lfx%lf %lf", &param1, &param2, &param3);
+
+ ctxcanvas->file = fopen (filename, "w");
+ if (ctxcanvas->file == NULL)
+ {
+ free(ctxcanvas);
+ return;
+ }
+
+ if (!param1)
+ {
+ canvas->w_mm = INT_MAX*3.78;
+ canvas->h_mm = INT_MAX*3.78;
+ canvas->xres = 3.78;
+ }
+ else if (!param2)
+ {
+ canvas->w_mm = INT_MAX*param1;
+ canvas->h_mm = INT_MAX*param1;
+ canvas->xres = param1;
+ }
+ else if (!param3)
+ {
+ canvas->w_mm = param1;
+ canvas->h_mm = param2;
+ canvas->xres = 3.78;
+ }
+ else
+ {
+ canvas->w_mm = param1;
+ canvas->h_mm = param2;
+ canvas->xres = param3;
+ }
+
+ ctxcanvas->canvas = canvas;
+ canvas->ctxcanvas = ctxcanvas;
+
+ canvas->bpp = 8;
+
+ canvas->yres = canvas->xres;
+
+ canvas->w = (int)(canvas->w_mm * canvas->xres);
+ canvas->h = (int)(canvas->h_mm * canvas->yres);
+
+ ctxcanvas->layer = 0; /* reset layer */
+
+ ctxcanvas->tf = 0; /* text font (0 is STANDARD) */
+ ctxcanvas->th = 9; /* text height */
+ ctxcanvas->toa = 0; /* text oblique angle */
+ ctxcanvas->tva = 0; /* text vertical alignment (0 is baseline) */
+ ctxcanvas->tha = 0; /* text horizontal alignment (0 is left) */
+ ctxcanvas->fgcolor = 7; /* foreground AutoCAD palette color */
+
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "SECTION\n"); /* header maker */
+ fprintf (ctxcanvas->file, "2\n");
+ fprintf (ctxcanvas->file, "HEADER\n");
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$LIMCHECK\n");
+ fprintf (ctxcanvas->file, "70\n");
+ fprintf (ctxcanvas->file, "1\n");
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$LIMMIN\n");
+ fprintf (ctxcanvas->file, "10\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "20\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$LIMMAX\n");
+ fprintf (ctxcanvas->file, "10\n");
+ fprintf (ctxcanvas->file, "%f\n", ctxcanvas->canvas->w_mm);
+ fprintf (ctxcanvas->file, "20\n");
+ fprintf (ctxcanvas->file, "%f\n", ctxcanvas->canvas->h_mm);
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$EXTMIN\n");
+ fprintf (ctxcanvas->file, "10\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "20\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$EXTMAX\n");
+ fprintf (ctxcanvas->file, "10\n");
+ fprintf (ctxcanvas->file, "%f\n", ctxcanvas->canvas->w_mm);
+ fprintf (ctxcanvas->file, "20\n");
+ fprintf (ctxcanvas->file, "%f\n", ctxcanvas->canvas->h_mm);
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$CLAYER\n");
+ fprintf (ctxcanvas->file, "8\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$LUNITS\n");
+ fprintf (ctxcanvas->file, "70\n");
+ fprintf (ctxcanvas->file, "2\n");
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$LUPREC\n");
+ fprintf (ctxcanvas->file, "70\n"); /* precision (resolution dependant) */
+ fprintf (ctxcanvas->file, "%d\n", (int)ceil(log10(ctxcanvas->canvas->xres)));
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$AUNITS\n");
+ fprintf (ctxcanvas->file, "70\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$AUPREC\n");
+ fprintf (ctxcanvas->file, "70\n");
+ fprintf (ctxcanvas->file, "2\n");
+ fprintf (ctxcanvas->file, "9\n");
+ fprintf (ctxcanvas->file, "$TEXTSTYLE\n");
+ fprintf (ctxcanvas->file, "7\n");
+ fprintf (ctxcanvas->file, "STANDARD\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "ENDSEC\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "SECTION\n");
+ fprintf (ctxcanvas->file, "2\n");
+ fprintf (ctxcanvas->file, "TABLES\n");
+
+ deflines (ctxcanvas); /* define lines */
+ deffonts (ctxcanvas); /* define fonts */
+
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "ENDSEC\n");
+ fprintf (ctxcanvas->file, "0\n");
+ fprintf (ctxcanvas->file, "SECTION\n");
+ fprintf (ctxcanvas->file, "2\n");
+ fprintf (ctxcanvas->file, "ENTITIES\n");
+}
+
+static void cdinittable(cdCanvas* canvas)
+{
+ canvas->cxFlush = cdflush;
+ canvas->cxPixel = cdpixel;
+ canvas->cxLine = cdline;
+ canvas->cxPoly = cdpoly;
+ canvas->cxRect = cdboxrect;
+ canvas->cxBox = cdboxrect;
+ canvas->cxFLine = cdfline;
+ canvas->cxFPoly = cdfpoly;
+ canvas->cxFRect = cdfboxrect;
+ canvas->cxFBox = cdfboxrect;
+ canvas->cxArc = cdarc;
+ canvas->cxSector = cdsector;
+ canvas->cxText = cdtext;
+ canvas->cxGetFontDim = cdgetfontdim;
+ canvas->cxGetTextSize = cdgettextsize;
+
+ canvas->cxLineStyle = cdlinestyle;
+ canvas->cxLineWidth = cdlinewidth;
+ canvas->cxFont = cdfont;
+ canvas->cxTextAlignment = cdtextalignment;
+ canvas->cxForeground = cdforeground;
+
+ canvas->cxKillCanvas = cdkillcanvas;
+ canvas->cxDeactivate = cddeactivate;
+}
+
+/******************************************************/
+
+static cdContext cdDXFContext =
+{
+ CD_CAP_ALL & ~(CD_CAP_CLEAR | CD_CAP_PLAY | CD_CAP_PALETTE |
+ CD_CAP_CLIPAREA | CD_CAP_CLIPPOLY |
+ CD_CAP_LINECAP | CD_CAP_LINEJOIN | CD_CAP_REGION | CD_CAP_CHORD |
+ CD_CAP_IMAGERGB | CD_CAP_IMAGEMAP | CD_CAP_IMAGESRV |
+ CD_CAP_BACKGROUND | CD_CAP_BACKOPACITY | CD_CAP_WRITEMODE |
+ CD_CAP_HATCH | CD_CAP_STIPPLE | CD_CAP_PATTERN |
+ CD_CAP_IMAGERGBA | CD_CAP_GETIMAGERGB),
+ 0,
+ cdcreatecanvas,
+ cdinittable,
+ NULL,
+ NULL,
+};
+
+cdContext* cdContextDXF(void)
+{
+ return &cdDXFContext;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 05:25:46 +0000