/*
* Write one label, with all the trimmings.
* This routine is used for both 2D and 3D plots.
*/
void
write_label(unsigned int x, unsigned int y, struct text_label *this_label)
{
int htic, vtic;
int justify = JUST_TOP; /* This was the 2D default; 3D had CENTRE */
apply_pm3dcolor(&(this_label->textcolor),term);
ignore_enhanced(this_label->noenhanced);
get_offsets(this_label, term, &htic, &vtic);
if (this_label->rotate && (*term->text_angle) (this_label->rotate)) {
write_multiline(x + htic, y + vtic, this_label->text,
this_label->pos, justify, this_label->rotate,
this_label->font);
(*term->text_angle) (0);
} else {
write_multiline(x + htic, y + vtic, this_label->text,
this_label->pos, justify, 0, this_label->font);
}
/* write_multiline() clips text to on_page; do the same for any point */
if (this_label->lp_properties.pointflag && on_page(x,y)) {
term_apply_lp_properties(&this_label->lp_properties);
(*term->point) (x, y, this_label->lp_properties.p_type);
/* the default label color is that of border */
term_apply_lp_properties(&border_lp);
}
ignore_enhanced(FALSE);
}
/*
* Write one label, with all the trimmings.
* This routine is used for both 2D and 3D plots.
*/
void
write_label(unsigned int x, unsigned int y, struct text_label *this_label)
{
int htic, vtic;
int justify = JUST_TOP; /* This was the 2D default; 3D had CENTRE */
apply_pm3dcolor(&(this_label->textcolor),term);
ignore_enhanced(this_label->noenhanced);
/* The text itself */
if (this_label->hypertext) {
/* Treat text as hypertext */
char *font = this_label->font;
if (font)
term->set_font(font);
if (term->hypertext)
term->hypertext(TERM_HYPERTEXT_TOOLTIP, this_label->text);
if (font)
term->set_font("");
} else {
/* A normal label (always print text) */
get_offsets(this_label, term, &htic, &vtic);
#ifdef EAM_BOXED_TEXT
/* Initialize the bounding box accounting */
if (this_label->boxed && term->boxed_text)
(*term->boxed_text)(x + htic, y + vtic, TEXTBOX_INIT);
#endif
if (this_label->rotate && (*term->text_angle) (this_label->rotate)) {
write_multiline(x + htic, y + vtic, this_label->text,
this_label->pos, justify, this_label->rotate,
this_label->font);
(*term->text_angle) (0);
} else {
write_multiline(x + htic, y + vtic, this_label->text,
this_label->pos, justify, 0, this_label->font);
}
}
#ifdef EAM_BOXED_TEXT
/* Adjust the bounding box margins */
if (this_label->boxed && term->boxed_text)
(*term->boxed_text)((int)(textbox_opts.xmargin * 100.),
(int)(textbox_opts.ymargin * 100.), TEXTBOX_MARGINS);
if (this_label->boxed && term->boxed_text && textbox_opts.opaque) {
/* Blank out the box and reprint the label */
(*term->boxed_text)(0,0, TEXTBOX_BACKGROUNDFILL);
if (this_label->rotate && (*term->text_angle) (this_label->rotate)) {
write_multiline(x + htic, y + vtic, this_label->text,
this_label->pos, justify, this_label->rotate,
this_label->font);
(*term->text_angle) (0);
} else {
write_multiline(x + htic, y + vtic, this_label->text,
this_label->pos, justify, 0, this_label->font);
}
}
/* Draw the bounding box - FIXME should set line properties first */
if (this_label->boxed && term->boxed_text) {
if (!textbox_opts.noborder)
(*term->boxed_text)(0,0, TEXTBOX_OUTLINE);
else
(*term->boxed_text)(0,0, TEXTBOX_FINISH);
}
#endif
/* The associated point, if any */
/* write_multiline() clips text to on_page; do the same for any point */
if ((this_label->lp_properties.flags & LP_SHOW_POINTS) && on_page(x,y)) {
term_apply_lp_properties(&this_label->lp_properties);
(*term->point) (x, y, this_label->lp_properties.p_type);
/* the default label color is that of border */
term_apply_lp_properties(&border_lp);
}
ignore_enhanced(FALSE);
}
void
multiplot_start()
{
TBOOLEAN set_spacing = FALSE;
TBOOLEAN set_margins = FALSE;
c_token++;
/* Only a few options are possible if we are already in multiplot mode */
/* So far we have "next". Maybe also "previous", "clear"? */
if (multiplot) {
if (equals(c_token, "next")) {
c_token++;
if (!mp_layout.auto_layout)
int_error(c_token, "only valid inside an auto-layout multiplot");
multiplot_next();
return;
} else if (almost_equals(c_token, "prev$ious")) {
c_token++;
if (!mp_layout.auto_layout)
int_error(c_token, "only valid inside an auto-layout multiplot");
multiplot_previous();
return;
} else {
term_end_multiplot();
}
}
/* FIXME: more options should be reset/initialized each time */
mp_layout.auto_layout = FALSE;
mp_layout.auto_layout_margins = FALSE;
mp_layout.current_panel = 0;
mp_layout.title.noenhanced = FALSE;
free(mp_layout.title.text);
mp_layout.title.text = NULL;
free(mp_layout.title.font);
mp_layout.title.font = NULL;
/* Parse options */
while (!END_OF_COMMAND) {
if (almost_equals(c_token, "ti$tle")) {
c_token++;
mp_layout.title.text = try_to_get_string();
continue;
}
if (equals(c_token, "font")) {
c_token++;
mp_layout.title.font = try_to_get_string();
continue;
}
if (almost_equals(c_token,"enh$anced")) {
mp_layout.title.noenhanced = FALSE;
c_token++;
continue;
}
if (almost_equals(c_token,"noenh$anced")) {
mp_layout.title.noenhanced = TRUE;
c_token++;
continue;
}
if (almost_equals(c_token, "lay$out")) {
if (mp_layout.auto_layout)
int_error(c_token, "too many layout commands");
else
mp_layout.auto_layout = TRUE;
c_token++;
if (END_OF_COMMAND) {
int_error(c_token,"expecting '<num_cols>,<num_rows>'");
}
/* read row,col */
mp_layout.num_rows = int_expression();
if (END_OF_COMMAND || !equals(c_token,",") )
int_error(c_token, "expecting ', <num_cols>'");
c_token++;
if (END_OF_COMMAND)
int_error(c_token, "expecting <num_cols>");
mp_layout.num_cols = int_expression();
/* remember current values of the plot size and the margins */
mp_layout.prev_xsize = xsize;
mp_layout.prev_ysize = ysize;
mp_layout.prev_xoffset = xoffset;
mp_layout.prev_yoffset = yoffset;
mp_layout.prev_lmargin = lmargin;
mp_layout.prev_rmargin = rmargin;
mp_layout.prev_bmargin = bmargin;
mp_layout.prev_tmargin = tmargin;
mp_layout.act_row = 0;
mp_layout.act_col = 0;
continue;
}
/* The remaining options are only valid for auto-layout mode */
if (!mp_layout.auto_layout)
int_error(c_token, "only valid in the context of an auto-layout command");
switch(lookup_table(&set_multiplot_tbl[0],c_token)) {
case S_MULTIPLOT_COLUMNSFIRST:
mp_layout.row_major = TRUE;
c_token++;
break;
case S_MULTIPLOT_ROWSFIRST:
mp_layout.row_major = FALSE;
c_token++;
break;
case S_MULTIPLOT_DOWNWARDS:
mp_layout.downwards = TRUE;
c_token++;
break;
case S_MULTIPLOT_UPWARDS:
mp_layout.downwards = FALSE;
c_token++;
break;
case S_MULTIPLOT_SCALE:
c_token++;
mp_layout.xscale = real_expression();
mp_layout.yscale = mp_layout.xscale;
if (!END_OF_COMMAND && equals(c_token,",") ) {
c_token++;
if (END_OF_COMMAND) {
int_error(c_token, "expecting <yscale>");
}
mp_layout.yscale = real_expression();
}
break;
case S_MULTIPLOT_OFFSET:
c_token++;
mp_layout.xoffset = real_expression();
mp_layout.yoffset = mp_layout.xoffset;
if (!END_OF_COMMAND && equals(c_token,",") ) {
c_token++;
if (END_OF_COMMAND) {
int_error(c_token, "expecting <yoffset>");
}
mp_layout.yoffset = real_expression();
}
break;
case S_MULTIPLOT_MARGINS:
c_token++;
if (END_OF_COMMAND)
int_error(c_token,"expecting '<left>,<right>,<bottom>,<top>'");
mp_layout.lmargin.scalex = screen;
mp_layout_set_margin_or_spacing(&(mp_layout.lmargin));
if (!END_OF_COMMAND && equals(c_token,",") ) {
c_token++;
if (END_OF_COMMAND)
int_error(c_token, "expecting <right>");
mp_layout.rmargin.scalex = mp_layout.lmargin.scalex;
mp_layout_set_margin_or_spacing(&(mp_layout.rmargin));
} else {
int_error(c_token, "expecting <right>");
}
if (!END_OF_COMMAND && equals(c_token,",") ) {
c_token++;
if (END_OF_COMMAND)
int_error(c_token, "expecting <top>");
mp_layout.bmargin.scalex = mp_layout.rmargin.scalex;
mp_layout_set_margin_or_spacing(&(mp_layout.bmargin));
} else {
int_error(c_token, "expecting <bottom>");
}
if (!END_OF_COMMAND && equals(c_token,",") ) {
c_token++;
if (END_OF_COMMAND)
int_error(c_token, "expecting <bottom>");
mp_layout.tmargin.scalex = mp_layout.bmargin.scalex;
mp_layout_set_margin_or_spacing(&(mp_layout.tmargin));
} else {
int_error(c_token, "expection <top>");
}
set_margins = TRUE;
break;
case S_MULTIPLOT_SPACING:
c_token++;
if (END_OF_COMMAND)
int_error(c_token,"expecting '<xspacing>,<yspacing>'");
mp_layout.xspacing.scalex = screen;
mp_layout_set_margin_or_spacing(&(mp_layout.xspacing));
mp_layout.yspacing = mp_layout.xspacing;
if (!END_OF_COMMAND && equals(c_token, ",")) {
c_token++;
if (END_OF_COMMAND)
int_error(c_token, "expecting <yspacing>");
mp_layout_set_margin_or_spacing(&(mp_layout.yspacing));
}
set_spacing = TRUE;
break;
default:
int_error(c_token,"invalid or duplicate option");
break;
}
}
if (set_spacing || set_margins) {
if (set_spacing && set_margins) {
if (mp_layout.lmargin.x >= 0 && mp_layout.rmargin.x >= 0
&& mp_layout.tmargin.x >= 0 && mp_layout.bmargin.x >= 0
&& mp_layout.xspacing.x >= 0 && mp_layout.yspacing.x >= 0)
mp_layout.auto_layout_margins = TRUE;
else
int_error(NO_CARET, "must give positive margin and spacing values");
} else if (set_spacing) {
int_warn(NO_CARET, "must give margins and spacing, continue with auto margins.");
} else if (set_margins) {
mp_layout.auto_layout_margins = TRUE;
mp_layout.xspacing.scalex = screen;
mp_layout.xspacing.x = 0.05;
mp_layout.yspacing.scalex = screen;
mp_layout.yspacing.x = 0.05;
int_warn(NO_CARET, "must give margins and spacing, continue with spacing of 0.05");
}
/* Sanity check that screen tmargin is > screen bmargin */
if (mp_layout.bmargin.scalex == screen && mp_layout.tmargin.scalex == screen)
if (mp_layout.bmargin.x > mp_layout.tmargin.x) {
double tmp = mp_layout.bmargin.x;
mp_layout.bmargin.x = mp_layout.tmargin.x;
mp_layout.tmargin.x = tmp;
}
}
/* If we reach here, then the command has been successfully parsed.
* Aug 2013: call term_start_plot() before setting multiplot so that
* the wxt and qt terminals will reset the plot count to 0 before
* ignoring subsequent TERM_LAYER_RESET requests.
*/
term_start_plot();
multiplot = TRUE;
fill_gpval_integer("GPVAL_MULTIPLOT", 1);
/* Place overall title before doing anything else */
if (mp_layout.title.text) {
double tmpx, tmpy;
unsigned int x, y;
char *p = mp_layout.title.text;
map_position_r(&(mp_layout.title.offset), &tmpx, &tmpy, "mp title");
x = term->xmax / 2 + tmpx;
y = term->ymax - term->v_char + tmpy;;
ignore_enhanced(mp_layout.title.noenhanced);
apply_pm3dcolor(&(mp_layout.title.textcolor));
write_multiline(x, y, mp_layout.title.text,
CENTRE, JUST_TOP, 0, mp_layout.title.font);
reset_textcolor(&(mp_layout.title.textcolor));
ignore_enhanced(FALSE);
/* Calculate fractional height of title compared to entire page */
/* If it would fill the whole page, forget it! */
for (y=1; *p; p++)
if (*p == '\n')
y++;
/* Oct 2012 - v_char depends on the font used */
if (mp_layout.title.font && *mp_layout.title.font)
term->set_font(mp_layout.title.font);
mp_layout.title_height = (double)(y * term->v_char) / (double)term->ymax;
if (mp_layout.title.font && *mp_layout.title.font)
term->set_font("");
if (mp_layout.title_height > 0.9)
mp_layout.title_height = 0.05;
} else {
mp_layout.title_height = 0.0;
}
if (mp_layout.auto_layout_margins)
mp_layout_margins_and_spacing();
else
mp_layout_size_and_offset();
}
