void cdSimInitText(cdSimulation* simulation)
{
if (!simulation->tt_text)
simulation->tt_text = cdTT_create();
cdRegisterAttribute(simulation->canvas, &addfontmap_attrib);
cdRegisterAttribute(simulation->canvas, &version_attrib);
}
cdCtxCanvas *cdgdkCreateCanvas(cdCanvas* canvas, GdkDrawable* wnd, GdkScreen* scr, GdkVisual* vis)
{
cdCtxCanvas *ctxcanvas = (cdCtxCanvas *)malloc(sizeof(cdCtxCanvas));
memset(ctxcanvas, 0, sizeof(cdCtxCanvas));
ctxcanvas->scr = scr;
ctxcanvas->vis = vis;
ctxcanvas->wnd = wnd;
ctxcanvas->gc = gdk_gc_new(wnd);
if (!ctxcanvas->gc)
{
free(canvas);
return NULL;
}
ctxcanvas->fontcontext = gdk_pango_context_get();
#if PANGO_VERSION_CHECK(1,16,0)
pango_context_set_language(ctxcanvas->fontcontext, pango_language_get_default());
#endif
ctxcanvas->canvas = canvas;
canvas->ctxcanvas = ctxcanvas;
gdk_drawable_get_size(wnd, &ctxcanvas->canvas->w, &ctxcanvas->canvas->h);
ctxcanvas->depth = gdk_drawable_get_depth(wnd);
canvas->bpp = ctxcanvas->depth;
canvas->xres = ((double)gdk_screen_get_width(scr) / (double)gdk_screen_get_width_mm(scr));
canvas->yres = ((double)gdk_screen_get_height(scr) / (double)gdk_screen_get_height_mm(scr));
canvas->w_mm = ((double)canvas->w) / canvas->xres;
canvas->h_mm = ((double)canvas->h) / canvas->yres;
canvas->invert_yaxis = 1;
if (canvas->bpp <= 8)
{
ctxcanvas->colormap = gdk_gc_get_colormap(ctxcanvas->gc);
if (!ctxcanvas->colormap)
{
ctxcanvas->colormap = gdk_colormap_get_system();
gdk_gc_set_colormap(ctxcanvas->gc, ctxcanvas->colormap);
}
ctxcanvas->num_colors = ctxcanvas->colormap->size;
}
cdRegisterAttribute(canvas, &gc_attrib);
cdRegisterAttribute(canvas, &rotate_attrib);
cdRegisterAttribute(canvas, &pangoversion_attrib);
cdRegisterAttribute(canvas, &imgdither_attrib);
cdRegisterAttribute(canvas, &interp_attrib);
return ctxcanvas;
}
static void cdcreatecanvas(cdCanvas* canvas, void *data)
{
cdCtxCanvas* ctxcanvas;
int w = 0, h = 0;
double res = 3.78;
char* str_data = (char*)data;
sscanf(str_data, "%dx%d %lg", &w, &h, &res);
if (w == 0 || h == 0)
return;
ctxcanvas = (cdCtxCanvas *)malloc(sizeof(cdCtxCanvas));
memset(ctxcanvas, 0, sizeof(cdCtxCanvas));
canvas->w = w;
canvas->h = h;
canvas->xres = res;
canvas->yres = res;
canvas->w_mm = ((double)canvas->w) / canvas->xres;
canvas->h_mm = ((double)canvas->h) / canvas->yres;
ctxcanvas->canvas = canvas;
canvas->ctxcanvas = ctxcanvas;
ctxcanvas->utf8_buffer = NULL;
cdRegisterAttribute(canvas, &rotate_attrib);
cdRegisterAttribute(canvas, &version_attrib);
cdRegisterAttribute(canvas, &poly_attrib);
cdRegisterAttribute(canvas, &size_attrib);
cdRegisterAttribute(canvas, &alpha_attrib);
cdRegisterAttribute(canvas, &aa_attrib);
cdRegisterAttribute(canvas, &txtaa_attrib);
cdRegisterAttribute(canvas, &utf8mode_attrib);
cdCanvasSetAttribute(canvas, "ALPHA", "1");
cdCanvasSetAttribute(canvas, "ANTIALIAS", "1");
cdCanvasSetAttribute(canvas, "TEXTANTIALIAS", "1");
}
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);
}