From eae5e5b611d308bc5374409f88ab24301a3ea76a Mon Sep 17 00:00:00 2001
From: erg <devnull@localhost>
Date: Sat, 12 Feb 2005 05:01:35 +0000
Subject: [PATCH] Add fix to lefty to support background color

---
 cmd/dotty/dotty.lefty      | 22 ++++++++++++++--------
 cmd/dotty/dotty_draw.lefty | 20 ++++++++++++++++++++
 cmd/dotty/dotty_ui.lefty   |  1 +
 cmd/lefty/ws/x11/gcanvas.c |  9 +++++++++
 4 files changed, 44 insertions(+), 8 deletions(-)

diff --git a/cmd/dotty/dotty.lefty b/cmd/dotty/dotty.lefty
index 3d7b65aa0..bb81900c1 100644
--- a/cmd/dotty/dotty.lefty
+++ b/cmd/dotty/dotty.lefty
@@ -317,9 +317,9 @@ dotty.protogt.savegraph = function (gt, name, type, savecoord) {
                     graph.rect[1].y = node.pos.y + node.size.y / 2;
             }
         }
-            graph.graphattr.bb = concat (graph.rect[0].x, ',',
-                    graph.rect[0].y, ',', graph.rect[1].x, ',',
-                    graph.rect[1].y);
+        graph.graphattr.bb = concat (graph.rect[0].x, ',',
+                graph.rect[0].y, ',', graph.rect[1].x, ',',
+                graph.rect[1].y);
         if (graph.lp & tablesize (graph.lp) > 0)
             graph.graphattr.lp = concat (graph.lp.x, ',', graph.lp.y);
     } else
@@ -465,7 +465,9 @@ dotty.protogt.createview = function (gt, protovt) {
         dotty.views[vt.view] = vt;
     if (protovt.colors & tablesize (protovt.colors) > 0) {
         for (id in protovt.colors)
-            if (setwidgetattr (vt.canvas, ['color' = [
+            if (id == '_bgcolor_')
+                setwidgetattr (vt.canvas, ['color' = [0 = protovt.colors[id];];]);
+            else if (setwidgetattr (vt.canvas, ['color' = [
                 protovt.colors[id] = id;
             ];]) ~= 1) {
                 t = split (id, ' ');
@@ -486,7 +488,9 @@ dotty.protogt.createview = function (gt, protovt) {
                 break;
         ovt = gt.views[id];
         for (id in ovt.colors)
-            if (setwidgetattr (vt.canvas, ['color' = [
+            if (id == '_bgcolor_')
+                setwidgetattr (vt.canvas, ['color' = [0 = ovt.colors[id];];]);
+            else if (setwidgetattr (vt.canvas, ['color' = [
                 ovt.colors[id] = id;
             ];]) ~= 1) {
                 t = split (id, ' ');
@@ -729,7 +733,9 @@ dotty.protogt.printorsave = function (gt, vt, otype, name, mode, ptype) {
     }
     for (cname in vt.colors) {
         cid = vt.colors[cname];
-        if (setwidgetattr (pscanvas, ['color' = [cid = cname;];]) ~= 1) {
+        if (cname == '_bgcolor_')
+            setwidgetattr (pscanvas, ['color' = [0 = cid;];]);
+        else if (setwidgetattr (pscanvas, ['color' = [cid = cname;];]) ~= 1) {
             t = split (cname, ' ');
             if (tablesize (t) ~= 3 |
                     setwidgetattr (pscanvas, ['color' = [cid = [
@@ -762,8 +768,8 @@ dotty.protogt.printorsave = function (gt, vt, otype, name, mode, ptype) {
         sgraph.fontname = fontmap[sgraph.graphattr.fontname];
         gt.drawsgraph (gt, [0 = vt;], sgraph);
     }
-	graph.fontname = fontmap[graph.graphattr.fontname];
-	gt.drawsgraph (gt, [0 = vt;], graph);
+    graph.fontname = fontmap[graph.graphattr.fontname];
+    gt.drawsgraph (gt, [0 = vt;], graph);
     gt.edgehandles = edgehandles;
     vt.canvas = canvas;
     destroywidget (pscanvas);
diff --git a/cmd/dotty/dotty_draw.lefty b/cmd/dotty/dotty_draw.lefty
index 5e0276cbb..6dff234f1 100644
--- a/cmd/dotty/dotty_draw.lefty
+++ b/cmd/dotty/dotty_draw.lefty
@@ -649,6 +649,24 @@ dotty.protogt.getcolor = function (views, name) {
     }
     return color;
 };
+dotty.protogt.setbgcolor = function (views, name) {
+    local vid, vt, t;
+
+    for (vid in views) {
+        vt = views[vid];
+        if (setwidgetattr (vt.canvas, ['color' = [0 = name;];]) ~= 1) {
+            t = split (name, ' ');
+            if (tablesize (t) ~= 3 |
+                    setwidgetattr (vt.canvas, ['color' = [0 = [
+                        'h' = ston (t[0]); 's' = ston (t[1]); 'v' = ston (t[2]);
+                    ];];]) ~= 1) {
+                dotty.message (0, concat ('unknown bgcolor ', name));
+                return;
+            }
+        }
+        vt.colors['_bgcolor_'] = name;
+    }
+};
 dotty.protogt.unpacksgraphattr = function (gt, sgraph) {
     local attr;
 
@@ -721,6 +739,8 @@ dotty.protogt.unpackattr = function (gt) {
         graph[dotty.keys.color] = gt.getcolor (gt.views, 'grey');
     else
         graph[dotty.keys.color] = gt.getcolor (gt.views, attr.color);
+    if (attr.bgcolor ~= '')
+        gt.setbgcolor (gt.views, attr.bgcolor);
     for (gid in graph.graphdict) {
         sgraph = graph.graphs[graph.graphdict[gid]];
         attr = sgraph.graphattr;
diff --git a/cmd/dotty/dotty_ui.lefty b/cmd/dotty/dotty_ui.lefty
index 7f6f9dae2..cf456241d 100644
--- a/cmd/dotty/dotty_ui.lefty
+++ b/cmd/dotty/dotty_ui.lefty
@@ -6,6 +6,7 @@ dotty.protogt.doaction = function (data, s) {
 
     vt = dotty.views[data.widget];
     gt = dotty.graphs[vt.gtid];
+    data.menuitem = s;
     if (data.obj.nid >= 0) {
         if (gt.actions.node[s]) {
             gt.actions.node[s] (gt, vt, data.obj, data);
diff --git a/cmd/lefty/ws/x11/gcanvas.c b/cmd/lefty/ws/x11/gcanvas.c
index 72c876613..036bc632c 100644
--- a/cmd/lefty/ws/x11/gcanvas.c
+++ b/cmd/lefty/ws/x11/gcanvas.c
@@ -386,6 +386,15 @@ int GCsetwidgetattr(Gwidget_t * widget, int attrn, Gwattr_t * attrp)
 	    }
 	    /* XAllocColor may change the rgb values */
 	    cp->red = r, cp->green = g, cp->blue = b;
+            if (color == 0) {
+                XSetBackground (Gdisplay, GC, WCU->colors[0].color.pixel);
+                ADD2ARGS (XtNbackground, WCU->colors[0].color.pixel);
+            } else if (color == 1) {
+                XSetForeground (Gdisplay, GC, WCU->colors[1].color.pixel);
+                ADD2ARGS (XtNforeground, WCU->colors[1].color.pixel);
+            }
+            XtSetValues (widget->w, argp, argn);
+            RESETARGS;
 	    if (color == WCU->gattr.color)
 		WCU->gattr.color = -1;
 	    break;
-- 
2.40.0