From: ellson <devnull@localhost>
Date: Sat, 2 Apr 2005 13:59:31 +0000 (+0000)
Subject: add support for title="xxx" to <td> and <table>
X-Git-Tag: LAST_LIBGRAPH~32^2~7754
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=fb0fda2616bf0af4340177b24ac1408fc9e29030;p=graphviz

add support for title="xxx" to <td> and <table>
   and add support for 'tooltip="xxx"' as an alias for title.
---

diff --git a/lib/common/htmllex.c b/lib/common/htmllex.c
index 3a4072e6a..ae56fbe26 100644
--- a/lib/common/htmllex.c
+++ b/lib/common/htmllex.c
@@ -122,6 +122,12 @@ static int hreffn(htmldata_t * p, char *v)
     return 0;
 }
 
+static int titlefn(htmldata_t * p, char *v)
+{
+    p->title = strdup(v);
+    return 0;
+}
+
 static int portfn(htmldata_t * p, char *v)
 {
     p->port = strdup(v);
@@ -350,6 +356,8 @@ static attr_item tbl_items[] = {
     {"href", (attrFn) hreffn},
     {"port", (attrFn) portfn},
     {"target", (attrFn) targetfn},
+    {"title", (attrFn) titlefn},
+    {"tooltip", (attrFn) titlefn},
     {"valign", (attrFn) valignfn},
     {"width", (attrFn) widthfn},
 };
@@ -367,6 +375,8 @@ static attr_item cell_items[] = {
     {"port", (attrFn) portfn},
     {"rowspan", (attrFn) rowspanfn},
     {"target", (attrFn) targetfn},
+    {"title", (attrFn) titlefn},
+    {"tooltip", (attrFn) titlefn},
     {"valign", (attrFn) valignfn},
     {"width", (attrFn) widthfn},
 };
diff --git a/lib/common/htmltable.c b/lib/common/htmltable.c
index 8bb9512e2..7c4c0358d 100644
--- a/lib/common/htmltable.c
+++ b/lib/common/htmltable.c
@@ -251,7 +251,7 @@ static void doFill(GVC_t * gvc, char *color, box pts)
 
 static void doAnchorStart(GVC_t * gvc, htmldata_t * data, void *obj)
 {
-    gvrender_begin_anchor(gvc, data->href, "", data->target);
+    gvrender_begin_anchor(gvc, data->href, data->title, data->target);
 }
 
 static void doAnchorEnd(GVC_t * gvc)
@@ -402,6 +402,7 @@ void free_html_data(htmldata_t * dp)
     free(dp->href);
     free(dp->port);
     free(dp->target);
+    free(dp->title);
     free(dp->bgcolor);
 }
 
diff --git a/lib/common/htmltable.h b/lib/common/htmltable.h
index aac73df19..9fba071db 100644
--- a/lib/common/htmltable.h
+++ b/lib/common/htmltable.h
@@ -62,6 +62,7 @@ extern "C" {
 	char *href;		/* pointer to an external resource */
 	char *port;
 	char *target;
+	char *title;
 	char *bgcolor;
 	char *pencolor;
 	signed char space;
diff --git a/lib/common/mapgen.c b/lib/common/mapgen.c
index d6e39ec02..5c29203ba 100644
--- a/lib/common/mapgen.c
+++ b/lib/common/mapgen.c
@@ -215,8 +215,9 @@ static void init_imap(void)
 
 static void doHTMLdata(htmldata_t * dp, point p, void *obj)
 {
-    char *url, *target;
+    char *url, *target, *title;
     pointf p1, p2;
+    int havetitle=0;
 
     if ((url = dp->href) && url[0]) {
 
@@ -234,13 +235,32 @@ static void doHTMLdata(htmldata_t * dp, point p, void *obj)
 	if (!(target = dp->target) || !target[0]) {
 	    target = "";
 	}
+	if ((title = dp->title) && title[0]) {
+	    havetitle++;
+	    switch (agobjkind(obj)) {
+	    case AGGRAPH:
+	        title = strdup_and_subst_graph(title, (graph_t *) obj);
+	        break;
+	    case AGNODE:
+	        title = strdup_and_subst_node(title, (node_t *) obj);
+	        break;
+	    case AGEDGE:
+	        title = strdup_and_subst_edge(title, (edge_t *) obj);
+	        break;
+	    }
+	}
+	else {
+	    title = "";
+	}
 
 	p1.x = p.x + dp->box.LL.x;
 	p1.y = p.y + dp->box.LL.y;
 	p2.x = p.x + dp->box.UR.x;
 	p2.y = p.y + dp->box.UR.y;
-	map_output_rect(p1, p2, url, target, "", 0);
+	map_output_rect(p1, p2, url, target, "", title);
 	free(url);
+	if (havetitle)
+	    free(title);
     }
 }