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/* GDCHART 0.10.0dev GDC.C 2 Nov 2000 */
/* Copyright Bruce Verderaime 1998, 1999, 2000 */
#define GDC_INCL
#define GDC_LIB
#include "gdc.h"
struct GDC_FONT_T GDC_fontc[GDC_numfonts] = { (gdFontPtr)NULL, 8, 5,
(gdFontPtr)NULL, 8, 5,
(gdFontPtr)NULL, 12, 6,
(gdFontPtr)NULL, 13, 7,
(gdFontPtr)NULL, 16, 8,
(gdFontPtr)NULL, 15, 9 };
/* ------------------------------------------------------------------- *\
* convert from enum GDC_font_size to gd fonts
* for now load them all
* #defines and #ifdefs might enable loading only needed fonts
\* ------------------------------------------------------------------- */
void
load_font_conversions()
{
GDC_fontc[GDC_pad].f = gdFontTiny;
GDC_fontc[GDC_TINY].f = gdFontTiny;
GDC_fontc[GDC_SMALL].f = gdFontSmall;
GDC_fontc[GDC_MEDBOLD].f = gdFontMediumBold;
GDC_fontc[GDC_LARGE].f = gdFontLarge;
GDC_fontc[GDC_GIANT].f = gdFontGiant;
}
/* ------------------------------------------------------------------ *\
* count (natural) substrings (new line sep)
\* ------------------------------------------------------------------ */
short
cnt_nl( char *nstr,
int *len ) /* strlen - max seg */
{
short c = 1;
short max_seg_len = 0;
short tmplen = 0;
if( !nstr )
{
if( len )
*len = 0;
return 0;
}
while( *nstr )
{
if( *nstr == '\n' )
{
++c;
max_seg_len = MAX( tmplen, max_seg_len );
tmplen = 0;
}
else
++tmplen;
++nstr;
}
if( len )
*len = MAX( tmplen, max_seg_len ); /* don't forget last seg */
return c;
}
/* ------------------------------------------------------------------ *\
* gd out a string with '\n's
\* ------------------------------------------------------------------ */
void
GDCImageStringNL( gdImagePtr im,
struct GDC_FONT_T *f,
int x,
int y,
char *str,
int clr,
GDC_justify_t justify )
{
int i;
int len;
int max_len;
short strs_num = cnt_nl( str, &max_len );
char sub_str[max_len+1];
len = -1;
strs_num = -1;
i = -1;
do
{
++i;
++len;
sub_str[len] = *(str+i);
if( *(str+i) == '\n' ||
*(str+i) == '\0' )
{
int xpos;
sub_str[len] = '\0';
++strs_num;
switch( justify )
{
case GDC_JUSTIFY_LEFT: xpos = x; break;
case GDC_JUSTIFY_RIGHT: xpos = x+f->w*(max_len-len); break;
case GDC_JUSTIFY_CENTER:
default: xpos = x+f->w*(max_len-len)/2;
}
gdImageString( im,
f->f,
xpos,
y + (f->h-1)*strs_num,
sub_str,
clr );
len = -1;
}
}
while( *(str+i) );
}
/* ------------------------------------------------------------------------ *\
* todo: *
* really get a unique color from the color map *
\* ------------------------------------------------------------------------ */
long
get_uniq_color( gdImagePtr im )
{
return 0x123454;
}
/* ------------------------------------------------------------------------ */
void
GDC_destroy_image(void *im)
{
if( im )
gdImageDestroy( (gdImagePtr)im );
}
/* ------------------------------------------------------------------------ */
void
out_err( int IMGWIDTH,
int IMGHEIGHT,
FILE *fptr,
unsigned long BGColor,
unsigned long LineColor,
char *err_str )
{
gdImagePtr im;
int lineclr;
int bgclr;
if( (GDC_hold_img & GDC_REUSE_IMAGE) &&
GDC_image != (void*)NULL )
im = GDC_image;
else
im = gdImageCreate( IMGWIDTH, IMGHEIGHT );
bgclr = gdImageColorAllocate( im, l2gdcal(BGColor) );
lineclr = gdImageColorAllocate( im, l2gdcal(LineColor) );
gdImageString( im,
gdFontMediumBold,
IMGWIDTH/2 - GDC_fontc[GDC_MEDBOLD].w*strlen(err_str)/2,
IMGHEIGHT/3,
err_str,
lineclr );
/* usually GDC_generate_img is used in conjunction with hard or hold options */
if( GDC_generate_img )
{
fflush(fptr); // clear anything buffered
switch( GDC_image_type )
{
case GDC_PNG: gdImagePng( im, fptr ); break;
#ifdef HAVE_JPEG
case GDC_JPEG: gdImageJpeg( im, fptr, GDC_jpeg_quality ); break;
#endif
case GDC_WBMP: gdImageWBMP( im, lineclr, fptr ); break;
case GDC_GIF:
default: /* gdImageGif( im, fptr); */ gdImagePng( im, fptr );
}
}
if( GDC_hold_img & GDC_EXPOSE_IMAGE )
GDC_image = (void*)im;
else
gdImageDestroy(im);
return;
}
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