/* size_html_img:
*/
static int size_html_img(htmlimg_t * img, htmlenv_t * env)
{
box b;
int rv;
b.LL.x = b.LL.y = 0;
b.UR = gvusershape_size(env->g, img->src);
if ((b.UR.x == -1) && (b.UR.y == -1)) {
rv = 1;
b.UR.x = b.UR.y = 0;
agerr(AGERR, "No or improper image file=\"%s\"\n", img->src);
} else {
rv = 0;
GD_has_images(env->g) = TRUE;
}
img->box = b;
return rv;
}
static void gd_begin_graph(GVC_t * gvc, graph_t * g, box bb, point pb)
{
char *bgcolor_str = NULL;
char *truecolor_str;
bool truecolor_p = FALSE; /* try to use cheaper paletted mode */
bool bg_transparent_p = FALSE;
int bgcolor;
external_surface = gvc->job->external_surface;
init1_gd(gvc, g, bb, pb);
if (external_surface) {
im = (gdImagePtr)gvc->job->surface;
} else {
truecolor_str = agget(g, "truecolor"); /* allow user to force truecolor */
bgcolor_str = agget(g, "bgcolor");
if (truecolor_str && truecolor_str[0])
truecolor_p = mapbool(truecolor_str);
if (bgcolor_str && strcmp(bgcolor_str, "transparent") == 0) {
bg_transparent_p = TRUE;
if (is_format_truecolor_capable(Output_lang))
truecolor_p = TRUE; /* force truecolor */
}
if (GD_has_images(g))
truecolor_p = TRUE; /* force truecolor */
if (truecolor_p) {
if (Verbose)
fprintf(stderr, "%s: allocating a %dK TrueColor GD image\n",
CmdName, ROUND(Viewport.x * Viewport.y * 4 / 1024.));
im = gdImageCreateTrueColor(Viewport.x, Viewport.y);
} else {
if (Verbose)
fprintf(stderr, "%s: allocating a %dK PaletteColor GD image\n",
CmdName, ROUND(Viewport.x * Viewport.y / 1024.));
im = gdImageCreate(Viewport.x, Viewport.y);
}
if (!im) {
agerr(AGERR, "gdImageCreate returned NULL. Malloc problem?\n");
return;
}
}
init2_gd(im);
if (! external_surface) {
if (bgcolor_str && bgcolor_str[0])
if (bg_transparent_p)
bgcolor = transparent;
else
bgcolor = gd_resolve_color(bgcolor_str);
else
bgcolor = white;
cstk[0].fillcolor = bgcolor;
/* Blending must be off to lay a transparent bgcolor.
Nothing to blend with anyway. */
gdImageAlphaBlending(im, FALSE);
gdImageFill(im, im->sx / 2, im->sy / 2, bgcolor);
/* Blend everything else together,
especially fonts over non-transparent backgrounds */
gdImageAlphaBlending(im, TRUE);
}
#ifdef MYTRACE
fprintf(stderr, "gd_begin_graph\n");
#endif
}