--- /dev/null
+/* $Id$Revision: */
+/* 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 *
+**********************************************************/
+
+#include "topviewfuncs.h"
+#include "cgraph.h"
+#include "smyrna_utils.h"
+#include "colorprocs.h"
+#include "draw.h"
+#include "frmobjectui.h"
+#include "xdot.h"
+#include "glutils.h"
+#include "selectionfuncs.h"
+#include "memory.h"
+#include <ctype.h>
+
+static xdot *parseXdotwithattrs(void *e)
+{
+
+ int cnt=0;
+ xdot* xDot=NULL;
+ xDot=parseXDotFOn (agget(e,"_draw_" ), OpFns,sizeof(sdot_op), xDot);
+ xDot=parseXDotFOn (agget(e,"_ldraw_" ), OpFns,sizeof(sdot_op), xDot);
+ xDot=parseXDotFOn (agget(e,"_hdraw_" ), OpFns,sizeof(sdot_op), xDot);
+ xDot=parseXDotFOn (agget(e,"_tdraw_" ), OpFns,sizeof(sdot_op), xDot);
+ xDot=parseXDotFOn (agget(e,"_hldraw_" ), OpFns,sizeof(sdot_op), xDot);
+ xDot=parseXDotFOn (agget(e,"_tldraw_" ), OpFns,sizeof(sdot_op), xDot);
+ if(xDot)
+ {
+ for (cnt=0;cnt < xDot->cnt ; cnt++)
+ {
+ ((sdot_op*)(xDot->ops))[cnt].obj=e;
+ }
+ }
+ return xDot;
+
+}
+
+static void set_boundaries(Agraph_t * g, topview * t)
+{
+ Agnode_t *v;
+ Agsym_t* pos_attr = GN_pos(g);
+ glCompPoint pos;
+ float left, right, top, bottom;
+ int id=0;
+
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ pos=getPointFromStr(agxget(v, pos_attr));
+ if(id==0)
+ {
+ left=pos.x;
+ right=pos.x;
+ top=pos.y;
+ bottom=pos.y;
+ }
+ if (left > pos.x)
+ left = pos.x;
+ if (right < pos.x)
+ right = pos.x;
+ if (bottom > pos.y)
+ bottom = pos.y;
+ if (top < pos.y)
+ top = pos.y;
+ id++;
+ }
+ view->bdxLeft = left;
+ view->bdyTop = top;
+ view->bdxRight = right;
+ view->bdyBottom = bottom;
+
+ view->bdzTop = 0;
+ view->bdzBottom = 0;
+}
+
+#if UNUSED
+static float init_node_size(Agraph_t * g, topview * t)
+{
+ float vsize;
+ int percent;
+ float sz;
+ percent = atoi(agget(g, "nodesize"));
+ if (percent == 0)
+ percent = 0.000001;
+ vsize =
+ 0.05 * sqrt((view->bdxRight - view->bdxLeft) *
+ (view->bdyTop - view->bdyBottom));
+ sz = vsize * 2 * percent / 100.0 /
+ sqrt(t->Nodecount);
+/* if (t->init_node_size < 1)
+ t->init_node_size=1;*/
+// t->init_zoom = view->zoom;
+ t->init_zoom = -20;
+ return sz;
+
+}
+#endif
+
+
+static void draw_xdot(xdot* x,float base_z)
+{
+ int i;
+ sdot_op *op;
+ if (!x)
+ return;
+
+ view->Topview->global_z=base_z;
+
+ op=(sdot_op*)x->ops;
+ for (i=0; i < x->cnt; i++,op++)
+ {
+ if(op->op.drawfunc)
+ op->op.drawfunc(&op->op,0);
+ }
+
+
+}
+
+
+
+static glCompPoint getEdgeHead(Agedge_t * edge)
+{
+ return getPointFromStr(agget(aghead(edge),"pos"));
+}
+static glCompPoint getEdgeTail(Agedge_t * edge)
+{
+ return getPointFromStr(agget(agtail(edge),"pos"));
+}
+static GLfloat getEdgeLength(Agedge_t * edge)
+{
+ GLfloat rv=0;
+ glCompPoint A,B;
+ A=getEdgeTail(edge);
+ B=getEdgeHead(edge);
+ rv=(A.x-B.x)*(A.x-B.x) + (A.y-B.y)*(A.y-B.y) +(A.z-B.z)*(A.z-B.z);
+ rv=sqrt(rv);
+ return rv;
+}
+static void glCompColorxlate(glCompColor* c,char* str)
+{
+ gvcolor_t cl;
+ colorxlate(str, &cl, RGBA_DOUBLE);
+ c->R=cl.u.RGBA[0];
+ c->G=cl.u.RGBA[1];
+ c->B=cl.u.RGBA[2];
+ c->A=cl.u.RGBA[3];
+}
+
+/* If the "visible" attribute is not set or "", return true
+ * else evaluate as boolean
+ */
+static int visible(Agsym_t* attr, void* obj)
+{
+ char* s;
+
+ if (attr) {
+ s = agxget (obj, attr);
+ if (*s) return mapbool(s);
+ else return 1;
+ }
+ else return 1;
+}
+static int object_color(void* obj,glCompColor* c)
+{
+ gvcolor_t cl;
+ Agraph_t* g=view->g[view->activeGraph];
+ Agraph_t* objg=agraphof(obj);
+ int return_value = 1;
+ int objType;
+ float Alpha = 1;
+ char* bf;
+ Agsym_t* vis;
+
+ objType=AGTYPE(obj);
+
+ if(objType==AGEDGE) {
+ Alpha=getAttrFloat(g,objg,"defaultedgealpha",1);
+ vis = GE_visible (objg);
+ }
+ if(objType==AGNODE) {
+ Alpha=getAttrFloat(g,objg,"defaultnodealpha",1);
+ vis = GN_visible (objg);
+ }
+ if (!visible(vis,obj))
+ return 0;
+
+ /*get edge's color attribute */
+ setColorScheme (agget (obj, "colorscheme"));
+ bf=getAttrStr(g,obj,"color",NULL);
+ if((bf)&&(strlen(bf)>0))
+ {
+ colorxlate(bf, &cl, RGBA_DOUBLE);
+ c->R=cl.u.RGBA[0];
+ c->G=cl.u.RGBA[1];
+ c->B=cl.u.RGBA[2];
+ c->A=cl.u.RGBA[3];
+
+ }
+ else
+ {
+ if(objType==AGEDGE)
+ getcolorfromschema(view->colschms, getEdgeLength(obj), view->Topview->maxedgelen,c);
+ else
+ {
+ colorxlate(agget(g, "defaultnodecolor"),&cl, RGBA_DOUBLE);
+ c->R=cl.u.RGBA[0];
+ c->G=cl.u.RGBA[1];
+ c->B=cl.u.RGBA[2];
+ c->A=cl.u.RGBA[3];
+ }
+ c->A=c->A*Alpha;
+
+ }
+ return return_value;
+}
+
+
+
+
+/*
+ draws multi edges , single edges
+ this function assumes glBegin(GL_LINES) has been called
+*/
+static void draw_edge(glCompPoint* posT,glCompPoint* posH, GLfloat length,int deg)
+{
+ double alpha, R, ITERANGLE;
+ double X1, Y1, X2, Y2;
+
+ if (deg) {
+ R = length / 20.0;
+ if ((deg / 2) * 2 != deg) /*odd */
+ ITERANGLE = (deg) * 15.00 * -1;
+ else
+ ITERANGLE = (deg) * 15.00;
+ ITERANGLE = DEG2RAD * ITERANGLE;
+
+ alpha = atan((posH->y - posT->y) / (posH->x - posT->x));
+ if (posT->x > posH->x)
+ ITERANGLE = 180 * DEG2RAD - ITERANGLE;
+ X1 = R * cos(alpha - ITERANGLE) + posT->x;
+ Y1 = R * sin(alpha - ITERANGLE) + posT->y;
+ X2 = R * cos(alpha - (180 * DEG2RAD - ITERANGLE)) + posH->x;
+ Y2 = R * sin(alpha - (180 * DEG2RAD - ITERANGLE)) + posH->y;
+ glVertex3f(posT->x, posT->y, posT->z);
+ glVertex3f(X1, Y1, posT->z);
+ glVertex3f(X1, Y1, posT->z);
+ glVertex3f(X2, Y2, posH->z);
+ glVertex3f(X2, Y2, posH->z);
+ glVertex3f(posH->x, posH->y, posH->z);
+ } else {
+ glVertex3f(posT->x, posT->y, posT->z);
+ glVertex3f(posH->x, posH->y, posH->z);
+
+ }
+
+}
+static void renderSelectedNodes(Agraph_t * g)
+{
+ Agnode_t *v;
+ Agsym_t* data_attr = GN_labelattribute(g);
+ xdot * x;
+ glCompPoint pos;
+ Agsym_t* l_color_attr = GG_nodelabelcolor(g);
+ glCompColor c;
+ int defaultNodeShape;
+ GLfloat nodeSize;
+
+ glCompColorxlate(&c,agxget(g,l_color_attr));
+
+ defaultNodeShape=getAttrBool(g,g,"defaultnodeshape",0);
+ if(defaultNodeShape==0)
+ glBegin(GL_POINTS);
+
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ if(!ND_selected(v));
+ continue;
+ x=parseXdotwithattrs(v);
+ draw_xdot(x,-1);
+ if(x)
+ freeXDot (x);
+ }
+
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ if(!ND_selected(v))
+ continue;
+ glColor4f(view->selectedNodeColor.R, view->selectedNodeColor.G,view->selectedNodeColor.B, view->selectedNodeColor.A);
+ pos = ND_A(v);
+ nodeSize = ND_size(v);
+
+ if (defaultNodeShape == 0)
+ glVertex3f(pos.x,pos.y,pos.z+0.001);
+ else if (defaultNodeShape == 1)
+ drawCircle(pos.x,pos.y,nodeSize,pos.z+0.001);
+ }
+ if(defaultNodeShape==0)
+ glEnd();
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ if(!ND_selected(v))
+ continue;
+ if (ND_printLabel(v)==1)
+ {
+ glColor4f(c.R, c.G,c.B, c.A);
+ if(!data_attr)
+ glprintfglut(view->glutfont,pos.x,pos.y,pos.z+0.002,agnameof(v));
+ else
+ glprintfglut(view->glutfont,pos.x,pos.y,pos.z+0.002,agxget(v,data_attr));
+ }
+ }
+}
+
+
+
+static void renderNodes(Agraph_t * g)
+{
+ Agnode_t *v;
+ glCompPoint pos;
+ Agsym_t* pos_attr = GN_pos(g);
+ Agsym_t* size_attr = GN_size(g);
+ Agsym_t* selected_attr = GN_selected(g);
+ int defaultNodeShape;
+ GLfloat nodeSize;
+ glCompColor c;
+ xdot * x;
+ int ind;
+
+ defaultNodeShape=getAttrInt(g,g,"defaultnodeshape",0);
+
+ x=parseXdotwithattrs(g);
+ if (x) {
+ draw_xdot(x,-0.2);
+ freeXDot (x);
+ }
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ if(!object_color(v,&c))
+ continue;
+ x=parseXdotwithattrs(v);
+ draw_xdot(x,-0.1);
+
+ if(x)
+ freeXDot (x);
+ }
+
+ if(defaultNodeShape==0)
+ glBegin(GL_POINTS);
+
+ ind=0;
+
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ ND_TVref(v) = ind;
+ if(!object_color(v,&c))
+ {
+ ND_visible(v) = 0;
+ continue;
+ }
+ else
+ ND_visible(v) = 1;
+
+ if(l_int(v, selected_attr,0))
+ {
+ ND_selected(v) = 1;
+ }
+ glColor4f(c.R,c.G,c.B,c.A);
+ pos=getPointFromStr(agxget(v, pos_attr));
+ nodeSize=(GLfloat)l_float(v, size_attr,0);
+
+ ND_A(v) = pos;
+
+ if (nodeSize > 0)
+ nodeSize=nodeSize*view->nodeScale;
+ else
+ nodeSize=view->nodeScale;
+ if(defaultNodeShape==0)
+ nodeSize=1;
+ ND_size(v) = nodeSize;
+ if (defaultNodeShape == 0)
+ glVertex3f(pos.x,pos.y,pos.z);
+ else if (defaultNodeShape == 1)
+ drawCircle(pos.x,pos.y,nodeSize,pos.z);
+ ind++;
+ }
+ if(defaultNodeShape==0)
+ glEnd();
+}
+
+
+static void renderSelectedEdges(Agraph_t * g)
+{
+
+ Agedge_t *e;
+ Agnode_t *v;
+ xdot * x;
+ glCompPoint posT; /*Tail position*/
+ glCompPoint posH; /*Head position*/
+ glCompColor c;
+ /*xdots tend to be drawn as background shapes,that is why they are being rendered before edges*/
+
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ for (e = agfstout(g, v); e; e = agnxtout(g, e))
+ {
+ if(!ED_selected(e))
+ continue;
+ if(!object_color(e,&c))
+ continue;
+
+ x=parseXdotwithattrs(e);
+ draw_xdot(x,0);
+ if(x)
+ freeXDot (x);
+ }
+ }
+
+
+
+
+ glBegin(GL_LINES);
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ for (e = agfstout(g, v); e; e = agnxtout(g, e))
+ {
+ if(!ED_selected(e))
+ continue;
+
+ if(!object_color(e,&c))
+ continue;
+ glColor4f(1,0,0,1);
+ posT = ED_posTail(e);
+ posH = ED_posHead(e);
+ posT.z +=0.01;
+ posH.z +=0.01;
+ draw_edge(&posT,&posH,getEdgeLength(e),0);
+ }
+ }
+ glEnd();
+}
+
+/* skipWS:
+ * Skip whitespace
+ */
+static char* skipWS (char* p)
+{
+ while (isspace(*p)) p++;
+ return p;
+}
+
+/* skipNWS:
+ * Skip non-whitespace
+ */
+static char* skipNWS (char* p)
+{
+ while (*p && !isspace(*p)) p++;
+ return p;
+}
+
+/* readPoint:
+ * Parse x,y[,z] and store in pt.
+ * If z is not specified, set to 0.
+ * Return pointer to next character after reading the point.
+ * Return NULL on error.
+ */
+static char* readPoint (char* p, xdot_point* pt)
+{
+ char* endp;
+
+ pt->z = 0;
+ pt->x = strtod (p, &endp);
+ if (p == endp) {
+ return 0;
+ }
+ else
+ p = endp;
+ if (*p == ',') p++;
+ else return 0;
+
+ pt->y = strtod (p, &endp);
+ if (p == endp) {
+ return 0;
+ }
+ else
+ p = endp;
+ if ((*p == ' ') || (*p == '\0')) return p;
+ else if (*p == ',') p++;
+ else return 0;
+
+ pt->z = strtod (p, &endp);
+ if (p == endp) {
+ return 0;
+ }
+ else
+ return endp;
+}
+
+/* countPoints:
+ * count number of points in pos attribute; store in cntp;
+ * check for e and s points; store if found and increment number of
+ * points by 3 for each.
+ * return start of point list (skip over e and s points).
+ * return NULL on failure
+ */
+static char* countPoints (char* pos, int* have_sp, xdot_point* sp, int* have_ep, xdot_point* ep, int* cntp)
+{
+ int cnt = 0;
+ char* p;
+
+ pos = skipWS (pos);
+ if (*pos == 's') {
+ if ((pos = readPoint (pos+2, sp))) {
+ *have_sp = 1;
+ cnt += 3;
+ }
+ else
+ return 0;
+ }
+ else
+ *have_sp = 0;
+
+ pos = skipWS (pos);
+ if (*pos == 'e') {
+ if ((pos = readPoint (pos+2, ep))) {
+ *have_ep = 1;
+ cnt += 3;
+ }
+ else
+ return 0;
+ }
+ else
+ *have_ep = 0;
+
+ p = pos = skipWS (pos);
+
+ while (*p) {
+ cnt++;
+ p = skipNWS (p);
+ p = skipWS (p);
+ }
+ *cntp = cnt;
+
+ return pos;
+}
+
+/* storePoints:
+ * read comma-separated list of points
+ * and store them in ps
+ * Assumes enough storage is available.
+ * return -1 on error
+ */
+static int storePoints (char* pos, xdot_point* ps)
+{
+
+ while (*pos) {
+ if ((pos = readPoint (pos, ps))) {
+ ps++;
+ pos = skipWS(pos);
+ }
+ else
+ return -1;
+ }
+ return 0;
+}
+
+/* makeXDotSpline:
+ * Generate an xdot representation of an edge's pos attribute
+ */
+static xdot* makeXDotSpline (char* pos)
+{
+ xdot_point s, e;
+ int v, have_s, have_e, cnt;
+ int sz = sizeof(sdot_op);
+ xdot* xd;
+ xdot_op* op;
+ xdot_point* pts;
+
+ if (*pos == '\0') return NULL;
+
+ pos = countPoints (pos, &have_s, &s, &have_e, &e, &cnt);
+ if (pos == 0) return NULL;
+
+ pts = N_NEW(cnt,xdot_point);
+ if (have_s) {
+ v = storePoints (pos, pts+3);
+ pts[0] = pts[1] = s;
+ pts[2] = pts[3];
+ }
+ else
+ v = storePoints (pos, pts);
+ if (v) {
+ free (pts);
+ return NULL;
+ }
+
+ if (have_e) {
+ pts[cnt-1] = pts[cnt-2] = e;
+ pts[cnt-3] = pts[cnt-4];
+ }
+
+ op = (xdot_op*)N_NEW(sz,char);
+ op->kind = xd_unfilled_bezier;
+ op->drawfunc = OpFns[xop_bezier];
+ op->u.bezier.cnt = cnt;
+ op->u.bezier.pts = pts;
+
+ xd = NEW(xdot);
+ xd->cnt = 1;
+ xd->sz = sz;
+ xd->ops = op;
+
+ return xd;
+}
+
+typedef void (*edgefn) (Agraph_t *, Agedge_t*, glCompColor);
+
+static void renderEdgesFn (Agraph_t * g, edgefn ef, int skipSelected)
+{
+ Agedge_t *e;
+ Agnode_t *v;
+ glCompColor c;
+
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ for (e = agfstout(g, v); e; e = agnxtout(g, e))
+ {
+ if ((ND_visible(agtail(e))==0) || (ND_visible(aghead(e))==0))
+ continue;
+
+ if(!object_color(e,&c))
+ {
+ ED_visible(e) = 0;
+ continue;
+ }
+ else
+ ED_visible(e) = 1;
+ if (ED_selected(e) && skipSelected)
+ continue;
+
+ ef (g, e, c);
+ }
+ }
+}
+
+static void edge_xdot (Agraph_t* g, Agedge_t* e, glCompColor c)
+{
+ xdot * x;
+ x=parseXdotwithattrs(e);
+ draw_xdot(x,0);
+ if(x)
+ freeXDot (x);
+}
+
+static void edge_seg (Agraph_t* g, Agedge_t* e, glCompColor c)
+{
+ Agsym_t* pos_attr = GN_pos(g);
+ glCompPoint posT; /*Tail position*/
+ glCompPoint posH; /*Head position*/
+
+ glColor4f(c.R,c.G,c.B,1);
+ posT=getPointFromStr(agxget(agtail(e), pos_attr));
+ posH=getPointFromStr(agxget(aghead(e), pos_attr));
+ draw_edge(&posT,&posH,getEdgeLength(e),0);
+ ED_posTail(e) = posT;
+ ED_posHead(e) = posH;
+}
+
+static void edge_spline (Agraph_t* g, Agedge_t* e, glCompColor c)
+{
+ Agsym_t* pos_attr_e = GE_pos(g);
+ xdot * x;
+
+ glColor4f(c.R,c.G,c.B,1);
+ x = makeXDotSpline (agxget(e,pos_attr_e));
+ if (x) {
+ draw_xdot(x,0);
+ freeXDot (x);
+ }
+}
+
+static void renderEdges(Agraph_t * g)
+{
+ Agsym_t* pos_attr_e = GE_pos(g);
+ int drawSegs = !(pos_attr_e && view->drawSplines);
+ /*xdots tend to be drawn as background shapes,that is why they are being rendered before edges*/
+
+ renderEdgesFn (g, edge_xdot, 0);
+
+ if (drawSegs) {
+ glBegin(GL_LINES);
+ renderEdgesFn (g, edge_seg, 1);
+ glEnd();
+ }
+ else
+ renderEdgesFn (g, edge_spline, 1);
+}
+
+static void renderNodeLabels(Agraph_t * g)
+{
+ Agnode_t *v;
+ glCompPoint pos;
+ Agsym_t* data_attr = GN_labelattribute(g);
+ Agsym_t* l_color_attr = GG_nodelabelcolor(g);
+ GLfloat nodeSize;
+ glCompColor c;
+
+ glCompColorxlate(&c,agxget(g,l_color_attr));
+
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ if(ND_visible(v)==0)
+ continue;
+ if(ND_selected(v)==1)
+ continue;
+
+ pos = ND_A(v);
+ nodeSize = ND_size(v);
+ glColor4f(c.R,c.G,c.B,c.A);
+ if(!data_attr)
+ glprintfglut(view->glutfont,pos.x,pos.y,pos.z,agnameof(v));
+ else
+ glprintfglut(view->glutfont,pos.x,pos.y,pos.z,agxget(v,data_attr));
+ }
+}
+
+static void renderEdgeLabels(Agraph_t * g)
+{
+ Agedge_t *e;
+ Agnode_t *v;
+ glCompPoint posT;
+ glCompPoint posH;
+ Agsym_t* data_attr = GE_labelattribute(g);
+ Agsym_t* l_color_attr = GG_edgelabelcolor(g);
+ glCompColor c;
+ GLfloat x,y,z;
+
+ glCompColorxlate(&c,agxget(g,l_color_attr));
+
+ if(!data_attr || !l_color_attr)
+ return;
+
+ for (v = agfstnode(g); v; v = agnxtnode(g, v))
+ {
+ for (e = agfstout(g, v); e; e = agnxtout(g, e))
+ {
+
+ if (ND_visible(v)==0)
+ continue;
+
+ posT = ED_posTail(e);
+ posH = ED_posHead(e);
+ glColor4f(c.R,c.G,c.B,c.A);
+ x=posH.x+(posT.x-posH.x)/2;
+ y=posH.y+(posT.y-posH.y)/2;
+ z=posH.z+(posT.z-posH.z)/2;
+ glprintfglut(view->glutfont,x,y,z,agxget(e,data_attr));
+
+ }
+ }
+}
+
+
+
+
+
+static void cacheNodes(Agraph_t * g,topview* t)
+{
+ if(t->cache.node_id!=-1) /*clean existing cache*/
+ glDeleteLists(t->cache.node_id,1);
+ t->cache.node_id=glGenLists(1);
+ glNewList(t->cache.node_id,GL_COMPILE);
+ renderNodes(g);
+ glEndList();
+
+
+
+
+}
+static void cacheEdges(Agraph_t * g,topview* t)
+{
+ if(t->cache.edge_id!=-1) /*clean existing cache*/
+ glDeleteLists(t->cache.edge_id,1);
+ t->cache.edge_id=glGenLists(1);
+ glNewList(t->cache.edge_id,GL_COMPILE);
+ renderEdges(g);
+ glEndList();
+
+
+}
+void cacheSelectedEdges(Agraph_t * g,topview* t)
+{
+ if(t->cache.seledge_id!=-1) /*clean existing cache*/
+ glDeleteLists(t->cache.seledge_id,1);
+ t->cache.seledge_id=glGenLists(1);
+ glNewList(t->cache.seledge_id,GL_COMPILE);
+ renderSelectedEdges(g);
+ glEndList();
+
+
+}
+void cacheSelectedNodes(Agraph_t * g,topview* t)
+{
+ if(t->cache.selnode_id!=-1) /*clean existing cache*/
+ glDeleteLists(t->cache.selnode_id,1);
+ t->cache.selnode_id=glGenLists(1);
+ glNewList(t->cache.selnode_id,GL_COMPILE);
+ renderSelectedNodes(g);
+ glEndList();
+}
+static void cacheNodeLabels(Agraph_t * g,topview* t)
+{
+ if(t->cache.nodelabel_id!=-1) /*clean existing cache*/
+ glDeleteLists(t->cache.nodelabel_id,1);
+ t->cache.nodelabel_id=glGenLists(1);
+ glNewList(t->cache.nodelabel_id,GL_COMPILE);
+ renderNodeLabels(g);
+ glEndList();
+}
+static void cacheEdgeLabels(Agraph_t * g,topview* t)
+{
+ if(t->cache.edgelabel_id!=-1) /*clean existing cache*/
+ glDeleteLists(t->cache.edgelabel_id,1);
+ t->cache.edgelabel_id=glGenLists(1);
+ glNewList(t->cache.edgelabel_id,GL_COMPILE);
+ renderEdgeLabels(g);
+ glEndList();
+}
+
+void updateSmGraph(Agraph_t * g,topview* t)
+{
+ Agnode_t *v;
+ Agedge_t *e;
+ float eLength=0;
+ float totalELength=0;
+
+ t->Nodecount=0;
+ t->Edgecount=0;
+ t->avgedgelength=0;
+ t->maxedgelen=0;
+ t->minedgelen=-1;
+
+ t->picked_node_count = 0;
+ t->picked_nodes = '\0';
+ t->picked_edge_count = 0;
+ t->picked_edges = '\0';
+ t->global_z=0;
+ t->sel.selPoly.cnt=0;
+ t->sel.selPoly.pts=NULL;
+
+ if(!t)
+ return ;
+ /*Node Loop*/
+ for (v = agfstnode(g); v; v = agnxtnode(g, v)) {
+ for (e = agfstout(g, v); e; e = agnxtout(g, e))
+ {
+ t->Edgecount++;
+ eLength=getEdgeLength(e);
+ if((t->minedgelen == -1) || (t->minedgelen > eLength))
+ t->minedgelen=eLength;
+ if(eLength > t->maxedgelen)
+ t->maxedgelen=eLength;
+ totalELength += eLength;
+ }
+ t->Nodecount++;
+
+ }
+ aginit(g, AGNODE, "nodeRec", sizeof(nodeRec), 0);
+ aginit(g, AGEDGE, "edgeRec", sizeof(edgeRec), 0);
+
+ set_boundaries(g,t);
+ t->avgedgelength = totalELength / t->Edgecount;
+// t->init_node_size=init_node_size(g, t);
+ view->Topview=t;
+
+
+ /*render nodes once to get set some attributes set,THIS IS A HACK, FIX IT*/
+ renderNodes(g);
+ cacheEdges(g,t);
+ cacheSelectedEdges(g,t);
+ cacheNodes(g,t);
+ cacheSelectedNodes(g,t);
+ cacheEdgeLabels(g,t);
+ cacheNodeLabels(g,t);
+}
+void initSmGraph(Agraph_t * g,topview* rv)
+{
+ rv->maxnodedegree = 1;
+
+
+
+ /*create attribute list*/
+ rv->attributes=load_attr_list(view->g[view->activeGraph]);
+ rv->filtered_attr_list=NULL;
+
+ /*set topologilca fisheye to NULL */
+ rv->fisheyeParams.h = '\0';
+
+ if (view->dfltViewType == VT_TOPFISH)
+ rv->fisheyeParams.active = 1;
+ else
+ rv->fisheyeParams.active = 0;
+ rv->cache.node_id=-1;
+ rv->cache.selnode_id=-1;
+ rv->cache.edge_id=-1;
+ rv->cache.seledge_id=-1;
+ rv->sel.selectEdges=0;
+ rv->sel.selectNodes=1;
+
+ updateSmGraph(g,rv);
+}
+
+void renderSmGraph(Agraph_t * g,topview* t)
+{
+ /*
+ we like to have blending affect where node and edge overlap
+ to achive this depth test should be turned off.
+ */
+
+ glEnable(GL_POINT_SMOOTH);
+ glEnable(GL_DEPTH_TEST);
+ /* glDepthFunc (GL_ALWAYS); */
+ glEnable(GL_DEPTH);
+// glDepthMask(0);
+
+ if(view->drawedges)
+ {
+ glCallList(t->cache.edge_id);
+ glCallList(t->cache.seledge_id);
+ if(view->drawedgelabels)
+ {
+ if(view->zoom*-1 < t->fitin_zoom /(float)view->labelnumberofnodes*-1)
+ glCallList(t->cache.edgelabel_id);
+
+ }
+ }
+ if(view->drawnodes)
+ {
+ glPointSize(view->nodeScale*t->fitin_zoom/view->zoom);
+ glCallList(t->cache.node_id);
+ glCallList(t->cache.selnode_id);
+ if(view->drawnodelabels)
+ {
+ if(view->zoom*-1 < t->fitin_zoom /(float)view->labelnumberofnodes*-1)
+ glCallList(t->cache.nodelabel_id);
+ }
+ }
+
+}
+
+void freeSmGraph(Agraph_t * g,topview* t)
+{
+ return ;
+}
+
+
projects / graphviz / commitdiff