/* emit_html_label:
*/
void
emit_html_label(GVJ_t * job, htmllabel_t * lp, textlabel_t * tp)
{
htmlenv_t env;
env.p = tp->p;
env.finfo.color = tp->fontcolor;
env.finfo.name = tp->fontname;
env.finfo.size = tp->fontsize;
if (lp->kind == HTML_TBL) {
htmltbl_t *tbl = lp->u.tbl;
/* set basic graphics context */
gvrender_begin_context(job);
/* Need to override line style set by node. */
gvrender_set_style(job, job->gvc->defaultlinestyle);
if (tbl->data.pencolor)
gvrender_set_pencolor(job, tbl->data.pencolor);
else
gvrender_set_pencolor(job, DEFAULT_COLOR);
emit_html_tbl(job, tbl, &env);
gvrender_end_context(job);
} else {
emit_html_txt(job, lp->u.txt, &env);
}
}
/* doBorder:
* Draw rectangle of width border inside rectangle given
* by box. If border is 1, we call use a single call to gvrender_polygon.
* (We have set linewidth to 1 below.) Otherwise, we use four separate
* filled rectangles. We could use a richer graphics model, as things
* can go wrong when cell spacing and borders are small.
* We decrement the border value by 1, as typically a filled rectangle
* from x to x+border will all pixels from x to x+border, and thus have
* width border+1.
*/
static void doBorder(GVJ_t * job, char *color, int border, box B)
{
pointf pt;
boxf BF;
double wd, ht;
gvrender_begin_context(job);
if (!color)
color = "black";
gvrender_set_fillcolor(job, color);
gvrender_set_pencolor(job, color);
B2BF(B, BF);
if (border == 1) {
gvrender_box(job, BF, 0);
} else {
border--;
ht = BF.UR.y - BF.LL.y;
wd = BF.UR.x - BF.LL.x;
doSide(job, BF.LL, border, ht);
pt.x = BF.LL.x;
pt.y = BF.UR.y;
doSide(job, pt, wd, -border);
doSide(job, BF.UR, -border, -ht);
pt.x = BF.UR.x;
pt.y = BF.LL.y;
doSide(job, pt, -wd, border);
}
gvrender_end_context(job);
}
void
emit_textlines(GVJ_t* job, int nlines, textline_t lines[], pointf p,
double halfwidth_x, char* fname, double fsize, char* fcolor)
{
int i, linespacing;
double tmp, center_x, left_x, right_x;
center_x = p.x;
left_x = center_x - halfwidth_x;
right_x = center_x + halfwidth_x;
/* set linespacing to an exact no. of pixelrows */
linespacing = (int) (fsize * LINESPACING);
/* position for first line */
p.y += (linespacing * (nlines - 1) / 2) /* cl of topline */
-fsize / 3.0; /* cl to baseline */
tmp = ROUND(p.y); /* align with interger points */
p.y = (double)tmp;
gvrender_begin_context(job);
gvrender_set_pencolor(job, fcolor);
gvrender_set_font(job, fname, fsize);
for (i = 0; i < nlines; i++) {
switch (lines[i].just) {
case 'l':
p.x = left_x;
break;
case 'r':
p.x = right_x;
break;
default:
case 'n':
p.x = center_x;
break;
}
gvrender_textline(job, p, &(lines[i]));
/* position for next line */
p.y -= linespacing;
}
gvrender_end_context(job);
}
static void
emit_htextparas(GVJ_t* job, int nparas, htextpara_t* paras, pointf p,
double halfwidth_x, char* fname, double fsize, char* fcolor, box b)
{
int i,j;
double tmp, center_x, left_x, right_x, fsize_;
double offset;
char *fname_ , *fcolor_;
textpara_t tl;
pointf p_ = {0.0, 0.0};
textitem_t* ti;
center_x = p.x;
left_x = center_x - halfwidth_x;
right_x = center_x + halfwidth_x;
/* Initial p is in center of text block; set initial baseline
* to top of text block.
*/
p_.y = p.y + (double)(b.UR.y-b.LL.y)/2.0;
tmp = ROUND(p_.y); /* align with integer points */
p_.y = (double)tmp;
gvrender_begin_context(job);
for(i=0; i<nparas; i++) {
switch (paras[i].just) {
case 'l':
p_.x = left_x;
p.x = left_x;
break;
case 'r':
p_.x = right_x;
p.x = right_x;
break;
default:
case 'n':
p_.x = center_x;
p.x = center_x;
break;
}
p_.y -= paras[i].lfsize; /* move to current base line */
ti = paras[i].items;
offset = 0.0;
for(j=0; j<paras[i].nitems; j++) {
if (ti->font && (ti->font->size > 0))
fsize_ = ti->font->size;
else
fsize_ = fsize;
if (ti->font && ti->font->name)
fname_ = ti->font->name;
else
fname_ = fname;
if (ti->font && ti->font->color)
fcolor_ = ti->font->color;
else
fcolor_ = fcolor;
gvrender_set_pencolor(job, fcolor_);
gvrender_set_font(job, fname_, fsize_);
tl.str = ti->str;
tl.fontname = fname_;
tl.fontsize = fsize_;
tl.xshow = ti->xshow;
tl.postscript_alias = ti->postscript_alias;
tl.layout = ti->layout;
tl.width = paras[i].size;
tl.height = paras[i].lfsize;
tl.just = paras[i].just;
gvrender_textpara(job, p_, &tl);
offset += ti->size;
p_.x = p.x + offset;
ti++;
}
}
gvrender_end_context(job);
}