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/*************************************************************************
* Copyright (c) 2011 AT&T Intellectual Property
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-v10.html
*
* Contributors: Details at https://graphviz.org
*************************************************************************/
#include "config.h"
#include <stdlib.h>
#include <gvc/gvplugin_render.h>
#include <gvc/gvplugin_device.h>
#include <gvc/gvio.h>
#include <util/unreachable.h>
#include <util/xml.h>
enum { FORMAT_IMAP, FORMAT_ISMAP, FORMAT_CMAP, FORMAT_CMAPX, };
/// wrap `gvputs` to offer a `void *` first parameter
static int gvputs_wrapper(void *state, const char *s) {
return gvputs(state, s);
}
// wrapper around `gv_xml_escape` to set flags for URL escaping
static void xml_url_puts(GVJ_t *job, const char *s) {
const xml_flags_t flags = {0};
(void)gv_xml_escape(s, flags, gvputs_wrapper, job);
}
static void map_output_shape(GVJ_t *job, map_shape_t map_shape, pointf *AF, size_t nump,
char* url, char *tooltip, char *target, char *id)
{
if (!AF || !nump)
return;
if (job->render.id == FORMAT_IMAP && url && url[0]) {
switch (map_shape) {
case MAP_RECTANGLE:
/* Y_GOES_DOWN so need UL to LR */
gvprintf(job, "rect %s %.0f,%.0f %.0f,%.0f\n", url, AF[0].x,
AF[1].y, AF[1].x, AF[0].y);
break;
case MAP_CIRCLE:
gvprintf(job, "circle %s %.0f,%.0f,%.0f\n", url, AF[0].x, AF[0].y,
AF[1].x - AF[0].x);
break;
case MAP_POLYGON:
gvprintf(job, "poly %s", url);
for (size_t i = 0; i < nump; i++) {
gvprintf(job, " %.0f,%.0f", AF[i].x, AF[i].y);
}
gvputs(job, "\n");
break;
default:
UNREACHABLE();
}
} else if (job->render.id == FORMAT_ISMAP && url && url[0]) {
switch (map_shape) {
case MAP_RECTANGLE:
/* Y_GOES_DOWN so need UL to LR */
gvprintf(job, "rectangle (%.0f,%.0f) (%.0f,%.0f) %s %s\n",
AF[0].x, AF[1].y, AF[1].x, AF[0].y, url, tooltip);
break;
default:
UNREACHABLE();
}
} else if (job->render.id == FORMAT_CMAP || job->render.id == FORMAT_CMAPX) {
switch (map_shape) {
case MAP_CIRCLE:
gvputs(job, "<area shape=\"circle\"");
break;
case MAP_RECTANGLE:
gvputs(job, "<area shape=\"rect\"");
break;
case MAP_POLYGON:
gvputs(job, "<area shape=\"poly\"");
break;
default:
UNREACHABLE();
}
if (id && id[0]) {
gvputs(job, " id=\"");
xml_url_puts(job, id);
gvputs(job, "\"");
}
if (url && url[0]) {
gvputs(job, " href=\"");
xml_url_puts(job, url);
gvputs(job, "\"");
}
if (target && target[0]) {
gvputs(job, " target=\"");
gvputs_xml(job, target);
gvputs(job, "\"");
}
if (tooltip && tooltip[0]) {
gvputs(job, " title=\"");
gvputs_xml(job, tooltip);
gvputs(job, "\"");
}
// FIXME:
// - https://gitlab.com/graphviz/graphviz/-/issues/265
// - https://gitlab.com/graphviz/graphviz/-/issues/2220
gvputs(job, " alt=\"\"");
gvputs(job, " coords=\"");
switch (map_shape) {
case MAP_CIRCLE:
gvprintf(job, "%.0f,%.0f,%.0f", AF[0].x, AF[0].y,
AF[1].x - AF[0].x);
break;
case MAP_RECTANGLE:
/* Y_GOES_DOWN so need UL to LR */
gvprintf(job, "%.0f,%.0f,%.0f,%.0f", AF[0].x, AF[1].y, AF[1].x,
AF[0].y);
break;
case MAP_POLYGON:
gvprintf(job, "%.0f,%.0f", AF[0].x, AF[0].y);
for (size_t i = 1; i < nump; i++) {
gvprintf(job, ",%.0f,%.0f", AF[i].x, AF[i].y);
}
break;
default:
break;
}
if (job->render.id == FORMAT_CMAPX)
gvputs(job, "\"/>\n");
else
gvputs(job, "\">\n");
}
}
static void map_begin_page(GVJ_t * job)
{
obj_state_t *obj = job->obj;
switch (job->render.id) {
case FORMAT_IMAP:
gvputs(job, "base referer\n");
if (obj->url && obj->url[0]) {
gvputs(job, "default ");
gvputs_xml(job, obj->url);
gvputs(job, "\n");
}
break;
case FORMAT_ISMAP:
if (obj->url && obj->url[0]) {
gvputs(job, "default ");
gvputs_xml(job, obj->url);
gvputs(job, " ");
gvputs_xml(job, agnameof(obj->u.g));
gvputs(job, "\n");
}
break;
case FORMAT_CMAPX:
gvputs(job, "<map id=\"");
gvputs_xml(job, agnameof(obj->u.g));
gvputs(job, "\" name=\"");
gvputs_xml(job, agnameof(obj->u.g));
gvputs(job, "\">\n");
break;
default:
break;
}
}
static void map_end_page(GVJ_t * job)
{
obj_state_t *obj = job->obj;
switch (job->render.id) {
case FORMAT_CMAP:
map_output_shape(job, obj->url_map_shape,
obj->url_map_p,obj->url_map_n,
obj->url, obj->tooltip, obj->target, obj->id);
break;
case FORMAT_CMAPX:
map_output_shape(job, obj->url_map_shape,
obj->url_map_p,obj->url_map_n,
obj->url, obj->tooltip, obj->target, obj->id);
gvputs(job, "</map>\n");
break;
default:
break;
}
}
static void map_begin_anchor(GVJ_t * job, char *url, char *tooltip, char *target, char *id)
{
obj_state_t *obj = job->obj;
map_output_shape(job, obj->url_map_shape,
obj->url_map_p, obj->url_map_n,
url, tooltip, target, id);
}
static gvrender_engine_t map_engine = {
0, /* map_begin_job */
0, /* map_end_job */
0, /* map_begin_graph */
0, /* map_end_graph */
0, /* map_begin_layer */
0, /* map_end_layer */
map_begin_page,
map_end_page,
0, /* map_begin_cluster */
0, /* map_end_cluster */
0, /* map_begin_nodes */
0, /* map_end_nodes */
0, /* map_begin_edges */
0, /* map_end_edges */
0, /* map_begin_node */
0, /* map_end_node */
0, /* map_begin_edge */
0, /* map_end_edge */
map_begin_anchor,
0, /* map_end_anchor */
0, /* map_begin_label */
0, /* map_end_label */
0, /* map_textpara */
0, /* map_resolve_color */
0, /* map_ellipse */
0, /* map_polygon */
0, /* map_bezier */
0, /* map_polyline */
0, /* map_comment */
0, /* map_library_shape */
};
static gvrender_features_t render_features_map = {
EMIT_CLUSTERS_LAST
| GVRENDER_Y_GOES_DOWN
| GVRENDER_DOES_MAPS
| GVRENDER_DOES_LABELS
| GVRENDER_DOES_TOOLTIPS
| GVRENDER_DOES_TARGETS
| GVRENDER_DOES_MAP_RECTANGLE, /* flags */
4., /* default pad - graph units */
NULL, /* knowncolors */
0, /* sizeof knowncolors */
0, /* color_type */
};
static gvdevice_features_t device_features_map = {
GVRENDER_DOES_MAP_CIRCLE
| GVRENDER_DOES_MAP_POLYGON, /* flags */
{0.,0.}, /* default margin - points */
{0.,0.}, /* default page width, height - points */
{96.,96.}, /* default dpi */
};
static gvdevice_features_t device_features_map_nopoly = {
0, /* flags */
{0.,0.}, /* default margin - points */
{0.,0.}, /* default page width, height - points */
{96.,96.}, /* default dpi */
};
gvplugin_installed_t gvrender_map_types[] = {
{FORMAT_ISMAP, "map", 1, &map_engine, &render_features_map},
{0, NULL, 0, NULL, NULL}
};
gvplugin_installed_t gvdevice_map_types[] = {
{FORMAT_ISMAP, "ismap:map", 1, NULL, &device_features_map_nopoly},
{FORMAT_CMAP, "cmap:map", 1, NULL, &device_features_map},
{FORMAT_IMAP, "imap:map", 1, NULL, &device_features_map},
{FORMAT_CMAPX, "cmapx:map", 1, NULL, &device_features_map},
{FORMAT_IMAP, "imap_np:map", 1, NULL, &device_features_map_nopoly},
{FORMAT_CMAPX, "cmapx_np:map", 1, NULL, &device_features_map_nopoly},
{0, NULL, 0, NULL, NULL}
};
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