static void cdcreatecanvas(cdCanvas* canvas, void *data)
{
cdCtxCanvas* ctxcanvas;
cairo_surface_t *surface;
HWND hWnd = (HWND)data;
HDC ScreenDC, hDC;
HRGN clip_hrgn;
ScreenDC = GetDC(NULL);
canvas->bpp = GetDeviceCaps(ScreenDC, BITSPIXEL);
canvas->xres = (float)(((double)GetDeviceCaps(ScreenDC, LOGPIXELSX)) / 25.4);
canvas->yres = (float)(((double)GetDeviceCaps(ScreenDC, LOGPIXELSY)) / 25.4);
ReleaseDC(NULL, ScreenDC);
if (!data)
{
hDC = GetDC(NULL);
canvas->w = GetDeviceCaps(hDC, HORZRES);
canvas->h = GetDeviceCaps(hDC, VERTRES);
}
else
{
RECT rect;
hWnd = (HWND)data;
hDC = GetDC(hWnd);
GetClientRect(hWnd, &rect);
canvas->w = rect.right - rect.left;
canvas->h = rect.bottom - rect.top;
}
/* initial clip extents controls size */
clip_hrgn = CreateRectRgn(0, 0, canvas->w, canvas->h);
SelectClipRgn(hDC, clip_hrgn);
DeleteObject(clip_hrgn);
surface = cairo_win32_surface_create(hDC);
canvas->w_mm = ((double)canvas->w) / canvas->xres;
canvas->h_mm = ((double)canvas->h) / canvas->yres;
ctxcanvas = cdcairoCreateCanvas(canvas, cairo_create(surface));
cairo_surface_destroy(surface);
ctxcanvas->hDC = hDC;
ctxcanvas->hWnd = hWnd;
if (hWnd)
{
LONG style = GetClassLong(hWnd, GCL_STYLE);
ctxcanvas->isOwnedDC = (int) ((style & CS_OWNDC) || (style & CS_CLASSDC));
}
else
ctxcanvas->isOwnedDC = 1;
}
static void cdcreatecanvas(cdCanvas* canvas, void *data)
{
cdCtxImage *ctximage = ((cdImage*)data)->ctximage;
cdcairoCreateCanvas(canvas, (cairo_t*)ctximage->cr);
canvas->w = ctximage->w;
canvas->h = ctximage->h;
canvas->w_mm = ctximage->w_mm;
canvas->h_mm = ctximage->h_mm;
canvas->bpp = ctximage->bpp;
canvas->xres = ctximage->xres;
canvas->yres = ctximage->yres;
}
static void cdcreatecanvas(cdCanvas* canvas, void* data)
{
cdCtxCanvas* ctxcanvas;
cairo_surface_t *surface;
int w = 0, h = 0, use_alpha = 0;
double res = 3.78;
unsigned char *rgb = NULL;
char* str_data = (char*)data;
char* res_ptr = NULL;
cairo_format_t format = CAIRO_FORMAT_RGB24;
/* Starting parameters */
if (str_data == NULL)
return;
if (strstr(str_data, "-a"))
use_alpha = 1;
res_ptr = strstr(str_data, "-r");
if (res_ptr)
sscanf(res_ptr+2, "%lg", &res);
/* size and rgb */
#ifdef SunOS_OLD
sscanf(str_data, "%dx%d %d", &w, &h, &rgb);
#else
sscanf(str_data, "%dx%d %p", &w, &h, &rgb);
#endif
if (w == 0) w = 1;
if (h == 0) h = 1;
canvas->w = w;
canvas->h = h;
canvas->yres = res;
canvas->xres = res;
canvas->w_mm = ((double)w) / res;
canvas->h_mm = ((double)h) / res;
if (use_alpha)
{
canvas->bpp = 32;
format = CAIRO_FORMAT_ARGB32;
}
else
canvas->bpp = 24; /* fake value, image bpp is always 32 */
if (rgb)
surface = cairo_image_surface_create_for_data(rgb, format, w, h, w*32);
else
surface = cairo_image_surface_create(format, canvas->w, canvas->h);
/* Starting Cairo driver */
ctxcanvas = cdcairoCreateCanvas(canvas, cairo_create(surface));
cairo_surface_destroy(surface);
if (rgb)
{
ctxcanvas->user_image = 1;
ctxcanvas->rgb = rgb;
}
else
{
ctxcanvas->user_image = 0;
ctxcanvas->rgb = cairo_image_surface_get_data(cairo_get_target(ctxcanvas->cr));
/* fill with white */
/* transparent, this is the normal alpha coding */
cairo_set_source_rgba(ctxcanvas->cr, 1.0, 1.0, 1.0, 0.0);
cairo_rectangle(ctxcanvas->cr, 0, 0, canvas->w, canvas->h);
cairo_fill(ctxcanvas->cr);
}
cdRegisterAttribute(canvas, &stride_attrib);
cdRegisterAttribute(canvas, &write2png_attrib);
cdRegisterAttribute(canvas, &data_attrib);
}
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);
}
