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/* $Id: gvrender_core_map.c,v 1.33 2009/06/03 01:10:56 ellson Exp $ $Revision: 1.33 $ */
/* vim:set shiftwidth=4 ts=8: */
/**********************************************************
* This software is part of the graphviz package *
* http://www.graphviz.org/ *
* *
* Copyright (c) 1994-2004 AT&T Corp. *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Corp. *
* *
* Information and Software Systems Research *
* AT&T Research, Florham Park NJ *
**********************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include "gvplugin_render.h"
#include "gvplugin_device.h"
#include "gvio.h"
extern char *xml_string(char *str);
extern char *xml_url_string(char *str);
typedef enum { FORMAT_IMAP, FORMAT_ISMAP, FORMAT_CMAP, FORMAT_CMAPX, } format_type;
static void map_output_shape (GVJ_t *job, map_shape_t map_shape, pointf * AF, int nump,
char* url, char *tooltip, char *target, char *id)
{
int i;
static point *A;
static int size_A;
if (!AF || !nump)
return;
if (size_A < nump) {
size_A = nump + 10;
A = realloc(A, size_A * sizeof(point));
}
for (i = 0; i < nump; i++)
PF2P(AF[i], A[i]);
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 %d,%d %d,%d\n", url,
A[0].x, A[1].y, A[1].x, A[0].y);
break;
case MAP_CIRCLE:
gvprintf(job, "circle %s %d,%d,%d\n", url,
A[0].x, A[0].y, A[1].x-A[0].x);
break;
case MAP_POLYGON:
gvprintf(job, "poly %s", url);
for (i = 0; i < nump; i++)
gvprintf(job, " %d,%d", A[i].x, A[i].y);
gvputs(job, "\n");
break;
default:
assert(0);
break;
}
} 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 (%d,%d) (%d,%d) %s %s\n",
A[0].x, A[1].y, A[1].x, A[0].y, url, tooltip);
break;
default:
assert(0);
break;
}
} 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:
assert(0);
break;
}
if (id && id[0]) {
gvputs(job, " id=\"");
gvputs(job, xml_url_string(id));
gvputs(job, "\"");
}
if (url && url[0]) {
gvputs(job, " href=\"");
gvputs(job, xml_url_string(url));
gvputs(job, "\"");
}
if (target && target[0]) {
gvputs(job, " target=\"");
gvputs(job, xml_string(target));
gvputs(job, "\"");
}
if (tooltip && tooltip[0]) {
gvputs(job, " title=\"");
gvputs(job, xml_string(tooltip));
gvputs(job, "\"");
}
/*
* alt text is intended for the visually impaired, but such
* folk are not likely to be clicking around on a graph anyway.
* IE on the PC platform (but not on Macs) incorrectly
* uses (non-empty) alt strings instead of title strings for tooltips.
* To make tooltips work and avoid this IE issue,
* while still satisfying usability guidelines
* that require that there is always an alt string,
* we generate just an empty alt string.
*/
gvputs(job, " alt=\"\"");
gvputs(job, " coords=\"");
switch (map_shape) {
case MAP_CIRCLE:
gvprintf(job, "%d,%d,%d", A[0].x, A[0].y, A[1].x-A[0].x);
break;
case MAP_RECTANGLE:
/* Y_GOES_DOWN so need UL to LR */
gvprintf(job, "%d,%d,%d,%d", A[0].x, A[1].y, A[1].x, A[0].y);
break;
case MAP_POLYGON:
gvprintf(job, "%d,%d", A[0].x, A[0].y);
for (i = 1; i < nump; i++)
gvprintf(job, " %d,%d", A[i].x, A[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;
char *s;
switch (job->render.id) {
case FORMAT_IMAP:
gvputs(job, "base referer\n");
if (obj->url && obj->url[0]) {
gvputs(job, "default ");
gvputs(job, xml_string(obj->url));
gvputs(job, "\n");
}
break;
case FORMAT_ISMAP:
if (obj->url && obj->url[0]) {
gvputs(job, "default ");
gvputs(job, xml_string(obj->url));
gvputs(job, " ");
gvputs(job, xml_string(agnameof(obj->u.g)));
gvputs(job, "\n");
}
break;
case FORMAT_CMAPX:
s = xml_string(agnameof(obj->u.g));
gvputs(job, "<map id=\"");
gvputs(job, s);
gvputs(job, "\" name=\"");
gvputs(job, s);
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;
}
}
#if 0
static void map_begin_cluster(GVJ_t * job)
{
obj_state_t *obj = job->obj;
gvprintf(job, "%% %s\n", obj->u.sg->name);
map_output_shape(job, obj->url_map_shape, obj->url_map_p, obj->url_map_n,
obj->url, obj->tooltip, obj->target);
}
static void map_begin_node(GVJ_t * job)
{
obj_state_t *obj = job->obj;
map_output_shape(job, obj->url_map_shape, obj->url_map_p,obj->url_map_n,
obj->url, obj->tooltip, obj->target);
}
static void
map_begin_edge(GVJ_t * job)
{
obj_state_t *obj = job->obj;
int i, j = 0;
map_output_shape(job, obj->url_map_shape, obj->url_map_p, obj->url_map_n,
obj->url, obj->tooltip, obj->target);
map_output_shape(job, MAP_RECTANGLE, obj->tailurl_map_p, 2,
obj->tailurl, obj->tailtooltip, obj->tailtarget);
map_output_shape(job, MAP_RECTANGLE, obj->headurl_map_p, 2,
obj->headurl, obj->headtooltip, obj->headtarget);
map_output_shape(job, MAP_RECTANGLE, obj->tailendurl_map_p,2,
obj->url, obj->tooltip, obj->target);
map_output_shape(job, MAP_RECTANGLE, obj->headendurl_map_p, 2,
obj->url, obj->tooltip, obj->target);
for (i = 0; i < obj->url_bsplinemap_poly_n; i++) {
map_output_shape(job, MAP_POLYGON,
obj->url_bsplinemap_p+j, obj->url_bsplinemap_n[i],
obj->url, obj->tooltip, obj->target);
j += obj->url_bsplinemap_n[i];
}
}
#endif
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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