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/** \file
* \brief Cairo PDF Driver
*
* See Copyright Notice in cd.h
*/
#include <stdlib.h>
#include <stdio.h>
#include "cd.h"
#include "cdcairo.h"
#include "cdcairoctx.h"
#include <cairo-pdf.h>
static void cdkillcanvas (cdCtxCanvas *ctxcanvas)
{
cdcairoKillCanvas(ctxcanvas);
}
static void cdcreatecanvas(cdCanvas* canvas, void* data)
{
cdCtxCanvas* ctxcanvas;
char* strdata = (char*)data;
char filename[10240] = "";
cairo_surface_t *surface;
int res = 300;
double w_pt; /* Largura do papel (points) */
double h_pt; /* Altura do papel (points) */
double scale; /* Fator de conversao de coordenadas (pixel2points) */
int landscape = 0; /* page orientation */
/* Starting parameters */
if (strdata == NULL)
return;
strdata += cdGetFileName(strdata, filename);
if (filename[0] == 0)
return;
cdSetPaperSize(CD_A4, &w_pt, &h_pt);
while (*strdata != '\0')
{
while (*strdata != '\0' && *strdata != '-')
strdata++;
if (*strdata != '\0')
{
float num;
strdata++;
switch (*strdata++)
{
case 'p':
{
int paper;
sscanf(strdata, "%d", &paper);
cdSetPaperSize(paper, &w_pt, &h_pt);
break;
}
case 'w':
sscanf(strdata, "%g", &num);
w_pt = CD_MM2PT*num;
break;
case 'h':
sscanf(strdata, "%g", &num);
h_pt = CD_MM2PT*num;
break;
case 'o':
landscape = 1;
break;
case 's':
sscanf(strdata, "%d", &res);
break;
}
}
while (*strdata != '\0' && *strdata != ' ')
strdata++;
}
if (landscape)
_cdSwapDouble(w_pt, h_pt);
scale = 72.0/res;
canvas->w = (int)(w_pt/scale + 0.5); /* Converte p/ unidades do usuario */
canvas->h = (int)(h_pt/scale + 0.5); /* Converte p/ unidades do usuario */
canvas->w_mm = w_pt/CD_MM2PT; /* Converte p/ milimetros */
canvas->h_mm = h_pt/CD_MM2PT; /* Converte p/ milimetros */
canvas->bpp = 24;
canvas->xres = canvas->w / canvas->w_mm;
canvas->yres = canvas->h / canvas->h_mm;
surface = cairo_pdf_surface_create(filename, w_pt, h_pt);
/* Starting Cairo driver */
ctxcanvas = cdcairoCreateCanvas(canvas, cairo_create(surface));
cairo_surface_destroy(surface);
}
static void cdinittable(cdCanvas* canvas)
{
cdcairoInitTable(canvas);
canvas->cxKillCanvas = cdkillcanvas;
}
static cdContext cdCairoPDFContext =
{
CD_CAP_ALL & ~(CD_CAP_PLAY | CD_CAP_YAXIS | CD_CAP_REGION | CD_CAP_WRITEMODE | CD_CAP_PALETTE),
0,
cdcreatecanvas,
cdinittable,
NULL,
NULL
};
cdContext* cdContextCairoPDF(void)
{
return &cdCairoPDFContext;
}
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